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Feng H, Yang S, Zhang L, Zhu J, Li J, Yang Z. A new Prdm1-Cre line is suitable for studying the second heart field development. Dev Biol 2024; 514:78-86. [PMID: 38880275 DOI: 10.1016/j.ydbio.2024.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 06/11/2024] [Accepted: 06/12/2024] [Indexed: 06/18/2024]
Abstract
The second heart field (SHF) plays a pivotal role in heart development, particularly in outflow tract (OFT) morphogenesis and septation, as well as in the expansion of the right ventricle (RV). Two mouse Cre lines, the Mef2c-AHF-Cre (Mef2c-Cre) and Isl1-Cre, have been widely used to study the SHF development. However, Cre activity is triggered not only in the SHF but also in the RV in the Mef2c-Cre mice, and in the Isl1-Cre mice, Cre activation is not SHF-specific. Therefore, a more suitable SHF-Cre line is desirable for better understanding SHF development. Here, we generated and characterized the Prdm1-Cre knock-in mice. In comparison with Mef2c-Cre mice, the Cre activity is similar in the pharyngeal and splanchnic mesoderm, and in the OFT of the Prdm1-Cre mice. Nonetheless, it was noticed that Cre expression is largely reduced in the RV of Prdm1-Cre mice compared to the Mef2c-Cre mice. Furthermore, we deleted Hand2, Nkx2-5, Pdk1 and Tbx20 using both Mef2c-Cre and Prdm1-Cre mice to study OFT morphogenesis and septation, making a comparison between these two Cre lines. New insights were obtained in understanding SHF development including differentiation into cardiomyocytes in the OFT using Prdm1-Cre mice. In conclusion, we found that Prdm1-Cre mouse line is a more appropriate tool to monitor SHF development, while the Mef2c-Cre mice are excellent in studying the role and function of the SHF in OFT morphogenesis and septation.
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Affiliation(s)
- Haiyue Feng
- State Key Laboratory of Pharmaceutical Biotechnology and Jiangsu Key Laboratory of Molecular Medicine, Nanjing University Medical School, Nanjing, China
| | - Suming Yang
- State Key Laboratory of Cell Biology, Shanghai Key Laboratory of Molecular Andrology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China
| | - Lijun Zhang
- State Key Laboratory of Pharmaceutical Biotechnology and Jiangsu Key Laboratory of Molecular Medicine, Nanjing University Medical School, Nanjing, China
| | - Jingai Zhu
- Women's Hospital of Nanjing Medical University, Nanjing Women and Children's Healthcare Hospital, Nanjing, China
| | - Jinsong Li
- State Key Laboratory of Cell Biology, Shanghai Key Laboratory of Molecular Andrology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, China.
| | - Zhongzhou Yang
- State Key Laboratory of Pharmaceutical Biotechnology and Jiangsu Key Laboratory of Molecular Medicine, Nanjing University Medical School, Nanjing, China.
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Luo W, Fu X, Huang H, Wu P, Wang Y, Liu Z, He S, Pang L, Ren D, Cui Y. Planar Cell Polarity in the Multiciliated Epithelial Lining of the Mouse Eustachian Tube. Laryngoscope 2024; 134:3795-3801. [PMID: 38613460 DOI: 10.1002/lary.31451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 03/26/2024] [Accepted: 04/02/2024] [Indexed: 04/15/2024]
Abstract
OBJECTIVES Planar cell polarity (PCP) signaling, essential for uniform alignment and directional beating of motile cilia, has been investigated in multiciliated epithelia. As a complex structure connecting the middle ear to the nasopharynx, the eustachian tube (ET) is important in the onset of ear-nose-throat diseases. However, PCP signaling, including the orientation that is important for ciliary motility and clearance function in the ET, has not been studied. We evaluated PCP in the ET epithelium. STUDY DESIGN Morphometric examination of the mouse ET. METHODS We performed electron microscopy to assess ciliary polarity in the mouse ET, along with immunohistochemical analysis of PCP protein localization in the ET epithelium. RESULTS We discovered PCP in the ET epithelium. Motile cilia were aligned in the same direction in individual and neighboring cells; this alignment manifested as ciliary polarity in multiciliated cells. Additionally, PCP proteins were asymmetrically localized between adjacent cells in the plane of the ET. CONCLUSIONS The multiciliated ET epithelium exhibits polarization, suggesting novel structural features that may be critical for ET function. LEVEL OF EVIDENCE NA Laryngoscope, 134:3795-3801, 2024.
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Affiliation(s)
- Wenwei Luo
- Department of Otolaryngology-Head and Neck Surgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Xiao Fu
- Department of Otolaryngology-Head and Neck Surgery, Eye & ENT Hospital, Fudan University, Shanghai, China
- NHC Key Laboratory of Hearing Medicine, Fudan University, Shanghai, China
| | - Hongming Huang
- Department of Otolaryngology-Head and Neck Surgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Peina Wu
- Department of Otolaryngology-Head and Neck Surgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Yanmei Wang
- Department of Otolaryngology-Head and Neck Surgery, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Zhifeng Liu
- Department of Otolaryngology, Longgang E.N.T hospital & Institute of E.N.T, Shenzhen, China
| | - Shiqi He
- Department of Otolaryngology-Head and Neck Surgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Limin Pang
- Department of Otolaryngology-Head and Neck Surgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Dongdong Ren
- Department of Otolaryngology-Head and Neck Surgery, Eye & ENT Hospital, Fudan University, Shanghai, China
- NHC Key Laboratory of Hearing Medicine, Fudan University, Shanghai, China
| | - Yong Cui
- Department of Otolaryngology-Head and Neck Surgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
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Wang Y, Heymann F, Peiseler M. Intravital imaging: dynamic insights into liver immunity in health and disease. Gut 2024; 73:1364-1375. [PMID: 38777574 DOI: 10.1136/gutjnl-2023-331739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Accepted: 05/09/2024] [Indexed: 05/25/2024]
Abstract
Inflammation is a critical component of most acute and chronic liver diseases. The liver is a unique immunological organ with a dense vascular network, leading to intense crosstalk between tissue-resident immune cells, passenger leucocytes and parenchymal cells. During acute and chronic liver diseases, the multifaceted immune response is involved in disease promoting and repair mechanisms, while upholding core liver immune functions. In recent years, single-cell technologies have unravelled a previously unknown heterogeneity of immune cells, reshaping the complexity of the hepatic immune response. However, inflammation is a dynamic biological process, encompassing various immune cells, orchestrated in temporal and spatial dimensions, and driven by multiorgan signals. Intravital microscopy (IVM) has emerged as a powerful tool to investigate immunity by visualising the dynamic interplay between different immune cells and their surroundings within a near-natural environment. In this review, we summarise the experimental considerations to perform IVM and highlight recent technological developments. Furthermore, we outline the unique contributions of IVM to our understanding of liver immunity. Through the lens of liver disease, we discuss novel immune-mediated disease mechanisms uncovered by imaging-based studies.
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Affiliation(s)
- Yuting Wang
- Department of Hepatology & Gastroenterology, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Felix Heymann
- Department of Hepatology & Gastroenterology, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Moritz Peiseler
- Department of Hepatology & Gastroenterology, Charité Universitätsmedizin Berlin, Berlin, Germany
- Berlin Institute of Health at Charité, Berlin, Germany
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4
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Ren SY, Xia Y, Yu B, Lei QJ, Hou PF, Guo S, Wu SL, Liu W, Yang SF, Jiang YB, Chen JF, Shen KF, Zhang CQ, Wang F, Yan M, Ren H, Yang N, Zhang J, Zhang K, Lin S, Li T, Yang QW, Xiao L, Hu ZX, Mei F. Growth hormone promotes myelin repair after chronic hypoxia via triggering pericyte-dependent angiogenesis. Neuron 2024; 112:2177-2196.e6. [PMID: 38653248 DOI: 10.1016/j.neuron.2024.03.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 01/26/2024] [Accepted: 03/27/2024] [Indexed: 04/25/2024]
Abstract
White matter injury (WMI) causes oligodendrocyte precursor cell (OPC) differentiation arrest and functional deficits, with no effective therapies to date. Here, we report increased expression of growth hormone (GH) in the hypoxic neonatal mouse brain, a model of WMI. GH treatment during or post hypoxic exposure rescues hypoxia-induced hypomyelination and promotes functional recovery in adolescent mice. Single-cell sequencing reveals that Ghr mRNA expression is highly enriched in vascular cells. Cell-lineage labeling and tracing identify the GHR-expressing vascular cells as a subpopulation of pericytes. These cells display tip-cell-like morphology with kinetic polarized filopodia revealed by two-photon live imaging and seemingly direct blood vessel branching and bridging. Gain-of-function and loss-of-function experiments indicate that GHR signaling in pericytes is sufficient to modulate angiogenesis in neonatal brains, which enhances OPC differentiation and myelination indirectly. These findings demonstrate that targeting GHR and/or downstream effectors may represent a promising therapeutic strategy for WMI.
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Affiliation(s)
- Shu-Yu Ren
- Department of Histology and Embryology, Chongqing Key Laboratory of Brain Development and Cognition, Brain and Intelligence Research Key Laboratory of Chongqing Education Commission, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Yu Xia
- Department of Histology and Embryology, Chongqing Key Laboratory of Brain Development and Cognition, Brain and Intelligence Research Key Laboratory of Chongqing Education Commission, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Bin Yu
- Department of Histology and Embryology, Chongqing Key Laboratory of Brain Development and Cognition, Brain and Intelligence Research Key Laboratory of Chongqing Education Commission, Third Military Medical University (Army Medical University), Chongqing 400038, China; Department of Neurosurgery, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Qi-Jing Lei
- Department of Histology and Embryology, Chongqing Key Laboratory of Brain Development and Cognition, Brain and Intelligence Research Key Laboratory of Chongqing Education Commission, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Peng-Fei Hou
- Department of Histology and Embryology, Chongqing Key Laboratory of Brain Development and Cognition, Brain and Intelligence Research Key Laboratory of Chongqing Education Commission, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Sheng Guo
- Department of Immunology, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Shuang-Ling Wu
- Department of Histology and Embryology, Chongqing Key Laboratory of Brain Development and Cognition, Brain and Intelligence Research Key Laboratory of Chongqing Education Commission, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Wei Liu
- Department of Histology and Embryology, Chongqing Key Laboratory of Brain Development and Cognition, Brain and Intelligence Research Key Laboratory of Chongqing Education Commission, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Shao-Fan Yang
- Brain Research Center, State Key Laboratory of Trauma and Chemical Poisoning, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Yi-Bin Jiang
- Department of Neurobiology, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Jing-Fei Chen
- Department of Histology and Embryology, Chongqing Key Laboratory of Brain Development and Cognition, Brain and Intelligence Research Key Laboratory of Chongqing Education Commission, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Kai-Feng Shen
- Department of Neurosurgery, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Chun-Qing Zhang
- Department of Neurosurgery, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Fei Wang
- Department of Histology and Embryology, Chongqing Key Laboratory of Brain Development and Cognition, Brain and Intelligence Research Key Laboratory of Chongqing Education Commission, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Mi Yan
- Department of Pediatrics, Daping Hospital, Third Military Medical University (Army Medical University), Chongqing 400000, China
| | - Hong Ren
- Department of Emergence, 5(th) People's Hospital of Chongqing, Chongqing 400062, China
| | - Nian Yang
- Department of Physiology, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Jun Zhang
- Department of Neurobiology, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Kuan Zhang
- Brain Research Center, State Key Laboratory of Trauma and Chemical Poisoning, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Sen Lin
- Department of Neurology, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Tao Li
- Department of Histology and Embryology, Chongqing Key Laboratory of Brain Development and Cognition, Brain and Intelligence Research Key Laboratory of Chongqing Education Commission, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Qing-Wu Yang
- Department of Neurology, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Lan Xiao
- Department of Histology and Embryology, Chongqing Key Laboratory of Brain Development and Cognition, Brain and Intelligence Research Key Laboratory of Chongqing Education Commission, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Zhang-Xue Hu
- Department of Pediatrics, Daping Hospital, Third Military Medical University (Army Medical University), Chongqing 400000, China.
| | - Feng Mei
- Department of Histology and Embryology, Chongqing Key Laboratory of Brain Development and Cognition, Brain and Intelligence Research Key Laboratory of Chongqing Education Commission, Third Military Medical University (Army Medical University), Chongqing 400038, China.
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Qian Q, Li M, Zhang Z, Davis SW, Rahmouni K, Norris AW, Cao H, Ding WX, Hotamisligil GS, Yang L. Obesity disrupts the pituitary-hepatic UPR communication leading to NAFLD progression. Cell Metab 2024; 36:1550-1565.e9. [PMID: 38718793 PMCID: PMC11222033 DOI: 10.1016/j.cmet.2024.04.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 03/05/2024] [Accepted: 04/17/2024] [Indexed: 07/05/2024]
Abstract
Obesity alters levels of pituitary hormones that govern hepatic immune-metabolic homeostasis, dysregulation of which leads to nonalcoholic fatty liver disease (NAFLD). However, the impact of obesity on intra-pituitary homeostasis is largely unknown. Here, we uncovered a blunted unfolded protein response (UPR) but elevated inflammatory signatures in pituitary glands of obese mice and humans. Furthermore, we found that obesity inflames the pituitary gland, leading to impaired pituitary inositol-requiring enzyme 1α (IRE1α)-X-box-binding protein 1 (XBP1) UPR branch, which is essential for protecting against pituitary endocrine defects and NAFLD progression. Intriguingly, pituitary IRE1-deletion resulted in hypothyroidism and suppressed the thyroid hormone receptor B (THRB)-mediated activation of Xbp1 in the liver. Conversely, activation of the hepatic THRB-XBP1 axis improved NAFLD in mice with pituitary UPR defect. Our study provides the first evidence and mechanism of obesity-induced intra-pituitary cellular defects and the pathophysiological role of pituitary-liver UPR communication in NAFLD progression.
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Affiliation(s)
- Qingwen Qian
- Department of Anatomy and Cell Biology, Fraternal Order of Eagles Diabetes Research Center, Pappajohn Biomedical Institute, University of Iowa Carver College of Medicine, Iowa City, IA 52242, USA
| | - Mark Li
- Department of Anatomy and Cell Biology, Fraternal Order of Eagles Diabetes Research Center, Pappajohn Biomedical Institute, University of Iowa Carver College of Medicine, Iowa City, IA 52242, USA
| | - Zeyuan Zhang
- Department of Anatomy and Cell Biology, Fraternal Order of Eagles Diabetes Research Center, Pappajohn Biomedical Institute, University of Iowa Carver College of Medicine, Iowa City, IA 52242, USA
| | - Shannon W Davis
- Department of Biological Sciences, College of Arts and Sciences, University of South Carolina, Columbia, SC 29208, USA
| | - Kamal Rahmouni
- Department of Neuroscience and Pharmacology, Fraternal Order of Eagles Diabetes Research Center, Pappajohn Biomedical Institute, University of Iowa Carver College of Medicine, Iowa City, IA 52242, USA
| | - Andrew W Norris
- Division of Endocrinology and Diabetes, Department of Pediatrics, Fraternal Order of Eagles Diabetes Research Center, University of Iowa Carver College of Medicine, Iowa City, IA 52242, USA
| | - Huojun Cao
- Iowa Institute for Oral Health Research, Division of Biostatistics and Computational Biology, Department of Endodontics, University of Iowa College of Dentistry, Iowa City, IA 52242, USA
| | - Wen-Xing Ding
- Department of Pharmacology, Toxicology and Therapeutics, The University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Gökhan S Hotamisligil
- Sabri Ülker Center for Metabolic Research, Department of Molecular Metabolism, Harvard T.H. School of Public Health, Boston, MA 02115, USA; Broad Institute of Harvard and MIT, Cambridge, MA 02141, USA
| | - Ling Yang
- Department of Anatomy and Cell Biology, Fraternal Order of Eagles Diabetes Research Center, Pappajohn Biomedical Institute, University of Iowa Carver College of Medicine, Iowa City, IA 52242, USA.
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Mark Kim MK, Lawrence M, Quinonez D, Brooks C, Ramachandran R, Séguin CA. Transient receptor potential vanilloid 4 regulates extracellular matrix composition and mediates load-induced intervertebral disc degeneration in a mouse model. Osteoarthritis Cartilage 2024; 32:881-894. [PMID: 38604493 DOI: 10.1016/j.joca.2024.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 03/25/2024] [Accepted: 04/02/2024] [Indexed: 04/13/2024]
Abstract
OBJECTIVE Transient receptor potential vanilloid 4 (TRPV4) is a multi-modally activated cation channel that mediates mechanotransduction pathways by which musculoskeletal tissues respond to mechanical load and regulate tissue health. Using conditional Trpv4 knockout mice, we investigated the role of Trpv4 in regulating intervertebral disc (IVD) health and injury-induced IVD degeneration. METHODS Col2-Cre;Trpv4fl/f (Trpv4 KO) mice were used to knockout Trpv4 in all type 2 collagen-expressing cells. Effects of gene targeting alone was assessed in lumbar spines, using vertebral bone length measurement, histological, immunohistochemistry and gene expression analyses, and mechanical testing. Disc puncture was performed on caudal IVDs of wild-type (WT) and Trpv4 KO mice at 2.5- and 6.5-months-of-age. Six weeks after puncture (4- and 8-months-of-age at sacrifice), caudal spines were assessed using histological analyses. RESULTS While loss of Trpv4 did not significantly alter vertebral bone length and tissue histomorphology compared to age-matched WT mice, Trpv4 KO mice showed decreased proteoglycan and PRG4 staining in the annulus fibrosus compared to WT. At the gene level, Trpv4 KO mice showed significantly increased expression of Acan, Bgn, and Prg4 compared to WT. Functionally, loss of Trpv4 was associated with significantly increased neutral zone length in lumbar IVDs. Following puncture, both Trpv4 KO and WT mice showed similar signs of degeneration at the site of injury. Interestingly, loss of Trpv4 prevented mechanically-induced degeneration in IVDs adjacent to sites of injury. CONCLUSION These studies suggest a role for Trpv4 in regulating extracellular matrix synthesis and mediating the response of IVD tissues to mechanical stress.
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Affiliation(s)
- Min Kyu Mark Kim
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Ontario, Canada
| | - Matthew Lawrence
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Ontario, Canada
| | - Diana Quinonez
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Ontario, Canada
| | - Courtney Brooks
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Ontario, Canada
| | - Rithwik Ramachandran
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Ontario, Canada
| | - Cheryle A Séguin
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, The University of Western Ontario, London, Ontario, Canada.
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Ma R, Feng D, Chen J, Zhou J, Xia K, Kong X, Hu G, Lu P. Targeting Tumor Heterogeneity by Breaking a Stem Cell and Epithelial Niche Interaction Loop. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2307452. [PMID: 38708713 PMCID: PMC11234407 DOI: 10.1002/advs.202307452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 03/20/2024] [Indexed: 05/07/2024]
Abstract
Tumor heterogeneity, the presence of multiple distinct subpopulations of cancer cells between patients or among the same tumors, poses a major challenge to current targeted therapies. The way these different subpopulations interact among themselves and the stromal niche environment, and how such interactions affect cancer stem cell behavior has remained largely unknown. Here, it is shown that an FGF-BMP7-INHBA signaling positive feedback loop integrates interactions among different cell populations, including mammary gland stem cells, luminal epithelial and stromal fibroblast niche components not only in organ regeneration but also, with certain modifications, in cancer progression. The reciprocal dependence of basal stem cells and luminal epithelium is based on basal-derived BMP7 and luminal-derived INHBA, which promote their respective expansion, and is regulated by stromal-epithelial FGF signaling. Targeting this interaction loop, for example, by reducing the function of one or more of its components, inhibits organ regeneration and breast cancer progression. The results have profound implications for overcoming drug resistance because of tumor heterogeneity in future targeted therapies.
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Affiliation(s)
- Rongze Ma
- MOE Key Lab of Rare Pediatric Diseases & Hunan Key Laboratory of Medical Genetics of the School of Life Sciences, Hengyang, Hunan, 421001, China
- Institute of Cell Biology, University of South China, Hengyang, Hunan, 421001, China
- Institute for Future Sciences, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Deyi Feng
- MOE Key Lab of Rare Pediatric Diseases & Hunan Key Laboratory of Medical Genetics of the School of Life Sciences, Hengyang, Hunan, 421001, China
- Institute of Cell Biology, University of South China, Hengyang, Hunan, 421001, China
| | - Jing Chen
- School of Life Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Shanghai, 201210, China
| | - Jiecan Zhou
- MOE Key Lab of Rare Pediatric Diseases & Hunan Key Laboratory of Medical Genetics of the School of Life Sciences, Hengyang, Hunan, 421001, China
- The First Affiliated Hospital, Pharmacy Department, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Kun Xia
- MOE Key Lab of Rare Pediatric Diseases & Hunan Key Laboratory of Medical Genetics of the School of Life Sciences, Hengyang, Hunan, 421001, China
- Institute of Cell Biology, University of South China, Hengyang, Hunan, 421001, China
| | - Xiangyin Kong
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Guohong Hu
- CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Pengfei Lu
- MOE Key Lab of Rare Pediatric Diseases & Hunan Key Laboratory of Medical Genetics of the School of Life Sciences, Hengyang, Hunan, 421001, China
- Institute of Cell Biology, University of South China, Hengyang, Hunan, 421001, China
- Institute for Future Sciences, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
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8
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Xu N, Alfieri CM, Yu Y, Guo M, Yutzey KE. Wnt Signaling Inhibition Prevents Postnatal Inflammation and Disease Progression in Mouse Congenital Myxomatous Valve Disease. Arterioscler Thromb Vasc Biol 2024; 44:1540-1554. [PMID: 38660802 PMCID: PMC11209782 DOI: 10.1161/atvbaha.123.320388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 04/10/2024] [Indexed: 04/26/2024]
Abstract
BACKGROUND Myxomatous valve disease (MVD) is the most common cause of mitral regurgitation, leading to impaired cardiac function and heart failure. MVD in a mouse model of Marfan syndrome includes valve leaflet thickening and progressive valve degeneration. However, the underlying mechanisms by which the disease progresses remain undefined. METHODS Mice with Fibrillin 1 gene variant Fbn1C1039G/+ recapitulate histopathologic features of Marfan syndrome, and Wnt (Wingless-related integration site) signaling activity was detected in TCF/Lef-lacZ (T-cell factor/lymphoid enhancer factor-β-galactosidase) reporter mice. Single-cell RNA sequencing was performed from mitral valves of wild-type and Fbn1C1039G/+ mice at 1 month of age. Inhibition of Wnt signaling was achieved by conditional induction of the secreted Wnt inhibitor Dkk1 (Dickkopf-1) expression in periostin-expressing valve interstitial cells of Periostin-Cre; tetO-Dkk1; R26rtTA; TCF/Lef-lacZ; Fbn1C1039G/+ mice. Dietary doxycycline was administered for 1 month beginning with MVD initiation (1-month-old) or MVD progression (2-month-old). Histological evaluation and immunofluorescence for ECM (extracellular matrix) and immune cells were performed. RESULTS Wnt signaling is activated early in mitral valve disease progression, before immune cell infiltration in Fbn1C1039G/+ mice. Single-cell transcriptomics revealed similar mitral valve cell heterogeneity between wild-type and Fbn1C1039G/+ mice at 1 month of age. Wnt pathway genes were predominantly expressed in valve interstitial cells and valve endothelial cells of Fbn1C1039G/+ mice. Inhibition of Wnt signaling in Fbn1C1039G/+ mice at 1 month of age prevented the initiation of MVD as indicated by improved ECM remodeling and reduced valve leaflet thickness with decreased infiltrating macrophages. However, later, Wnt inhibition starting at 2 months did not prevent the progression of MVD. CONCLUSIONS Wnt signaling is involved in the initiation of mitral valve abnormalities and inflammation but is not responsible for later-stage valve disease progression once it has been initiated. Thus, Wnt signaling contributes to MVD progression in a time-dependent manner and provides a promising therapeutic target for the early treatment of congenital MVD in Marfan syndrome.
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Affiliation(s)
- Na Xu
- Division of Molecular Cardiovascular Biology, the Heart Institute, Cincinnati Children’s Hospital Medical Center
- Department of Pediatrics, University of Cincinnati College of Medicine
| | - Christina M. Alfieri
- Division of Molecular Cardiovascular Biology, the Heart Institute, Cincinnati Children’s Hospital Medical Center
| | - Yang Yu
- Division of Developmental Biology, Cincinnati Children’s Hospital Medical Center
| | - Minzhe Guo
- Division of Neonatology and Pulmonary Biology, Cincinnati Children’s Hospital Medical Center
- Department of Pediatrics, University of Cincinnati College of Medicine
| | - Katherine E. Yutzey
- Division of Molecular Cardiovascular Biology, the Heart Institute, Cincinnati Children’s Hospital Medical Center
- Department of Pediatrics, University of Cincinnati College of Medicine
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Norris S, Hu JK, Shubin NH. Whole Tissue Imaging of Cellular Boundaries at Sub-Micron Resolutions for Automatic Cell Segmentation: Applications in Epithelial Bending of Ectodermal Appendages. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.26.600880. [PMID: 38979339 PMCID: PMC11230380 DOI: 10.1101/2024.06.26.600880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
For decades, biologists have relied on confocal microscopy to understand cellular morphology and the fine details of tissue structure. However, traditional confocal microscopy of tissues have limited penetration depths of light ∼ 100 µm due to tissue opaqueness. Researchers have, thus, developed tissue clearing protocols to be used with confocal microscopy, however, current clearing protocols are not compatible with labels of cell boundaries, especially at high enough resolution to precisely segment individual cells. In this work, we devise a method to retain markers of cell boundaries, and refractive index-match the tissues with water to enable tissue imaging at high magnification using long working distance water dipping objectives. The sub-micron resolution of these images allows us to automatically segment each individual cell using a trained neural network segmentation model. These segmented images can then be utilized to quantify cell properties and morphology of the entire three-dimensional tissue. As an example application, we first test our methodology on mandibles of mutant mice that express fluorescent proteins in their membranes. We then examine a non-model animal, the catshark, and explore the cellular properties of their dental lamina and dermal denticles, which are invaginating and evaginating ectodermal structures, respectively. We, thus, demonstrate that the technique presented here provides a powerful tool to quantify, in high-throughput, the 3D structures of cells and tissues during organ morphogenesis.
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Zhuang X, Wang Q, Joost S, Ferrena A, Humphreys DT, Li Z, Blum M, Bastl K, Ding S, Landais Y, Zhan Y, Zhao Y, Chaligne R, Lee JH, Carrasco SE, Bhanot UK, Koche RP, Bott MJ, Katajisto P, Soto-Feliciano YM, Pisanic T, Thomas T, Zheng D, Wong ES, Tammela T. Aging limits stemness and tumorigenesis in the lung by reprogramming iron homeostasis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.23.600305. [PMID: 38979280 PMCID: PMC11230188 DOI: 10.1101/2024.06.23.600305] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
Aging is associated with a decline in the number and fitness of adult stem cells 1-4 . Aging-associated loss of stemness is posited to suppress tumorigenesis 5,6 , but this hypothesis has not been tested in vivo . Here, using physiologically aged autochthonous genetically engineered mouse models and primary cells 7,8 , we demonstrate aging suppresses lung cancer initiation and progression by degrading stemness of the alveolar cell of origin. This phenotype is underpinned by aging-associated induction of the transcription factor NUPR1 and its downstream target lipocalin-2 in the cell of origin in mice and humans, leading to a functional iron insufficiency in the aged cells. Genetic inactivation of the NUPR1-lipocalin-2 axis or iron supplementation rescue stemness and promote tumorigenic potential of aged alveolar cells. Conversely, targeting the NUPR1- lipocalin-2 axis is detrimental to young alveolar cells via induction of ferroptosis. We find that aging-associated DNA hypomethylation at specific enhancer sites associates with elevated NUPR1 expression, which is recapitulated in young alveolar cells by inhibition of DNA methylation. We uncover that aging drives a functional iron insufficiency, which leads to loss of stemness and tumorigenesis, but promotes resistance to ferroptosis. These findings have significant implications for the therapeutic modulation of cellular iron homeostasis in regenerative medicine and in cancer prevention. Furthermore, our findings are consistent with a model whereby most human cancers initiate in young individuals, revealing a critical window for such cancer prevention efforts.
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11
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Menche C, Schuhwerk H, Armstark I, Gupta P, Fuchs K, van Roey R, Mosa MH, Hartebrodt A, Hajjaj Y, Clavel Ezquerra A, Selvaraju MK, Geppert CI, Bärthel S, Saur D, Greten FR, Brabletz S, Blumenthal DB, Weigert A, Brabletz T, Farin HF, Stemmler MP. ZEB1-mediated fibroblast polarization controls inflammation and sensitivity to immunotherapy in colorectal cancer. EMBO Rep 2024:10.1038/s44319-024-00186-7. [PMID: 38937629 DOI: 10.1038/s44319-024-00186-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 06/10/2024] [Accepted: 06/13/2024] [Indexed: 06/29/2024] Open
Abstract
The EMT-transcription factor ZEB1 is heterogeneously expressed in tumor cells and in cancer-associated fibroblasts (CAFs) in colorectal cancer (CRC). While ZEB1 in tumor cells regulates metastasis and therapy resistance, its role in CAFs is largely unknown. Combining fibroblast-specific Zeb1 deletion with immunocompetent mouse models of CRC, we observe that inflammation-driven tumorigenesis is accelerated, whereas invasion and metastasis in sporadic cancers are reduced. Single-cell transcriptomics, histological characterization, and in vitro modeling reveal a crucial role of ZEB1 in CAF polarization, promoting myofibroblastic features by restricting inflammatory activation. Zeb1 deficiency impairs collagen deposition and CAF barrier function but increases NFκB-mediated cytokine production, jointly promoting lymphocyte recruitment and immune checkpoint activation. Strikingly, the Zeb1-deficient CAF repertoire sensitizes to immune checkpoint inhibition, offering a therapeutic opportunity of targeting ZEB1 in CAFs and its usage as a prognostic biomarker. Collectively, we demonstrate that ZEB1-dependent plasticity of CAFs suppresses anti-tumor immunity and promotes metastasis.
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Affiliation(s)
- Constantin Menche
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt am Main, Germany
- Frankfurt Cancer Institute, Goethe University Frankfurt, Frankfurt/Main, Germany
| | - Harald Schuhwerk
- Department of Experimental Medicine 1, Nikolaus-Fiebiger Center for Molecular Medicine, FAU Erlangen-Nürnberg, Erlangen, Germany
| | - Isabell Armstark
- Department of Experimental Medicine 1, Nikolaus-Fiebiger Center for Molecular Medicine, FAU Erlangen-Nürnberg, Erlangen, Germany
| | - Pooja Gupta
- Core Unit for Bioinformatics, Data Integration and Analysis, Center for Medical Information and Communication Technology, University Hospital Erlangen, FAU Erlangen-Nürnberg, Erlangen, Germany
| | - Kathrin Fuchs
- Department of Experimental Medicine 1, Nikolaus-Fiebiger Center for Molecular Medicine, FAU Erlangen-Nürnberg, Erlangen, Germany
| | - Ruthger van Roey
- Department of Experimental Medicine 1, Nikolaus-Fiebiger Center for Molecular Medicine, FAU Erlangen-Nürnberg, Erlangen, Germany
| | - Mohammed H Mosa
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt am Main, Germany
- Frankfurt Cancer Institute, Goethe University Frankfurt, Frankfurt/Main, Germany
| | - Anne Hartebrodt
- Biomedical Network Science Lab, Department Artificial Intelligence in Biomedical Engineering (AIBE), FAU Erlangen-Nürnberg, Erlangen, Germany
| | - Yussuf Hajjaj
- Department of Experimental Medicine 1, Nikolaus-Fiebiger Center for Molecular Medicine, FAU Erlangen-Nürnberg, Erlangen, Germany
| | - Ana Clavel Ezquerra
- Department of Experimental Medicine 1, Nikolaus-Fiebiger Center for Molecular Medicine, FAU Erlangen-Nürnberg, Erlangen, Germany
| | - Manoj K Selvaraju
- Core Unit for Bioinformatics, Data Integration and Analysis, Center for Medical Information and Communication Technology, University Hospital Erlangen, FAU Erlangen-Nürnberg, Erlangen, Germany
| | - Carol I Geppert
- Institute of Pathology, University Hospital Erlangen, FAU Erlangen-Nürnberg, Erlangen, Germany
| | - Stefanie Bärthel
- Division of Translational Cancer Research, German Cancer Research Center (DKFZ) and German Cancer Consortium (DKTK), Heidelberg, Germany
- Chair of Translational Cancer Research and Institute of Experimental Cancer Therapy, Klinikum rechts der Isar, School of Medicine, Technische Universität München, Munich, Germany
- Center for Translational Cancer Research (TranslaTUM), School of Medicine, Technical University of Munich, Munich, Germany
| | - Dieter Saur
- Division of Translational Cancer Research, German Cancer Research Center (DKFZ) and German Cancer Consortium (DKTK), Heidelberg, Germany
- Chair of Translational Cancer Research and Institute of Experimental Cancer Therapy, Klinikum rechts der Isar, School of Medicine, Technische Universität München, Munich, Germany
- Center for Translational Cancer Research (TranslaTUM), School of Medicine, Technical University of Munich, Munich, Germany
- Department of Internal Medicine II, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Florian R Greten
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt am Main, Germany
- Frankfurt Cancer Institute, Goethe University Frankfurt, Frankfurt/Main, Germany
- German Research Center (DKFZ), Heidelberg, Germany
- German Cancer Consortium (DKTK), Partner Site Frankfurt/Mainz, Frankfurt am Main, Germany
| | - Simone Brabletz
- Department of Experimental Medicine 1, Nikolaus-Fiebiger Center for Molecular Medicine, FAU Erlangen-Nürnberg, Erlangen, Germany
| | - David B Blumenthal
- Biomedical Network Science Lab, Department Artificial Intelligence in Biomedical Engineering (AIBE), FAU Erlangen-Nürnberg, Erlangen, Germany
| | - Andreas Weigert
- Frankfurt Cancer Institute, Goethe University Frankfurt, Frankfurt/Main, Germany
- German Cancer Consortium (DKTK), Partner Site Frankfurt/Mainz, Frankfurt am Main, Germany
- Institute of Biochemistry I, Goethe University, Frankfurt am Main, Germany
| | - Thomas Brabletz
- Department of Experimental Medicine 1, Nikolaus-Fiebiger Center for Molecular Medicine, FAU Erlangen-Nürnberg, Erlangen, Germany.
| | - Henner F Farin
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt am Main, Germany.
- Frankfurt Cancer Institute, Goethe University Frankfurt, Frankfurt/Main, Germany.
- German Research Center (DKFZ), Heidelberg, Germany.
- German Cancer Consortium (DKTK), Partner Site Frankfurt/Mainz, Frankfurt am Main, Germany.
| | - Marc P Stemmler
- Department of Experimental Medicine 1, Nikolaus-Fiebiger Center for Molecular Medicine, FAU Erlangen-Nürnberg, Erlangen, Germany.
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Perrin S, Protic S, Bretegnier V, Laurendeau I, de Lageneste OD, Panara N, Ruckebusch O, Luka M, Masson C, Maillard T, Coulpier F, Pannier S, Wicart P, Hadj-Rabia S, Radomska KJ, Zarhrate M, Ménager M, Vidaud D, Topilko P, Parfait B, Colnot C. MEK-SHP2 inhibition prevents tibial pseudarthrosis caused by NF1 loss in Schwann cells and skeletal stem/progenitor cells. Sci Transl Med 2024; 16:eadj1597. [PMID: 38924432 DOI: 10.1126/scitranslmed.adj1597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 05/24/2024] [Indexed: 06/28/2024]
Abstract
Congenital pseudarthrosis of the tibia (CPT) is a severe pathology marked by spontaneous bone fractures that fail to heal, leading to fibrous nonunion. Half of patients with CPT are affected by the multisystemic genetic disorder neurofibromatosis type 1 (NF1) caused by mutations in the NF1 tumor suppressor gene, a negative regulator of RAS-mitogen-activated protein kinase (MAPK) signaling pathway. Here, we analyzed patients with CPT and Prss56-Nf1 knockout mice to elucidate the pathogenic mechanisms of CPT-related fibrous nonunion and explored a pharmacological approach to treat CPT. We identified NF1-deficient Schwann cells and skeletal stem/progenitor cells (SSPCs) in pathological periosteum as affected cell types driving fibrosis. Whereas NF1-deficient SSPCs adopted a fibrotic fate, NF1-deficient Schwann cells produced critical paracrine factors including transforming growth factor-β and induced fibrotic differentiation of wild-type SSPCs. To counteract the elevated RAS-MAPK signaling in both NF1-deficient Schwann cells and SSPCs, we used MAPK kinase (MEK) and Src homology 2 containing protein tyrosine phosphatase 2 (SHP2) inhibitors. Combined MEK-SHP2 inhibition in vivo prevented fibrous nonunion in the Prss56-Nf1 knockout mouse model, providing a promising therapeutic strategy for the treatment of fibrous nonunion in CPT.
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Affiliation(s)
- Simon Perrin
- Université Paris Est Creteil, INSERM, IMRB, 94000 Creteil, France
| | - Sanela Protic
- Université Paris Est Creteil, INSERM, IMRB, 94000 Creteil, France
| | | | - Ingrid Laurendeau
- INSERM UMR S1016, Institut Cochin, Université Paris Cité, 75014 Paris, France
| | | | - Nicolas Panara
- INSERM UMR S1016, Institut Cochin, Université Paris Cité, 75014 Paris, France
| | - Odile Ruckebusch
- Université Paris Est Creteil, INSERM, IMRB, Plateforme de Cytométrie en flux, 94000 Creteil, France
| | - Marine Luka
- Paris Cité University, Imagine Institute, Laboratory of Inflammatory Responses and Transcriptomic Networks in Diseases, Atip-Avenir Team, INSERM UMR 1163, 75015 Paris, France
- Labtech Single-Cell@Imagine, Imagine Institute, INSERM UMR 1163, 75015 Paris, France
| | - Cécile Masson
- Bioinformatics Core Facility, Institut Imagine-Structure Fédérative de Recherche Necker, INSERM U1163, 75015 Paris, France
- INSERM US24/CNRS UAR3633, Paris Cité University, 75015 Paris, France
| | - Théodora Maillard
- Service de Médecine Génomique des Maladies de Système et d'Organe, Hôpital Cochin, DMU BioPhyGen, Assistance Publique-Hôpitaux de Paris, AP-HP, Centre-Université Paris Cité, F-75014 Paris, France
| | - Fanny Coulpier
- Université Paris Est Creteil, INSERM, IMRB, 94000 Creteil, France
| | - Stéphanie Pannier
- Department of Pediatric Orthopedic Surgery and Traumatology, Necker-Enfants Malades Hospital, AP-HP, Paris Cité University, 75015 Paris, France
| | - Philippe Wicart
- Department of Pediatric Orthopedic Surgery and Traumatology, Necker-Enfants Malades Hospital, AP-HP, Paris Cité University, 75015 Paris, France
| | - Smail Hadj-Rabia
- Department of Dermatology, Reference Center for Rare Skin Diseases (MAGEC), Imagine Institute, Necker-Enfants Malades Hospital, AP-HP, Paris Cité University, 75015 Paris, France
| | | | - Mohammed Zarhrate
- INSERM US24/CNRS UAR3633, Paris Cité University, 75015 Paris, France
- Genomics Core Facility, Institut Imagine-Structure Fédérative de Recherche Necker, INSERM U1163, 75015 Paris, France
| | - Mickael Ménager
- Paris Cité University, Imagine Institute, Laboratory of Inflammatory Responses and Transcriptomic Networks in Diseases, Atip-Avenir Team, INSERM UMR 1163, 75015 Paris, France
- Labtech Single-Cell@Imagine, Imagine Institute, INSERM UMR 1163, 75015 Paris, France
| | - Dominique Vidaud
- INSERM UMR S1016, Institut Cochin, Université Paris Cité, 75014 Paris, France
- Service de Médecine Génomique des Maladies de Système et d'Organe, Hôpital Cochin, DMU BioPhyGen, Assistance Publique-Hôpitaux de Paris, AP-HP, Centre-Université Paris Cité, F-75014 Paris, France
| | - Piotr Topilko
- Université Paris Est Creteil, INSERM, IMRB, 94000 Creteil, France
| | - Béatrice Parfait
- INSERM UMR S1016, Institut Cochin, Université Paris Cité, 75014 Paris, France
- Service de Médecine Génomique des Maladies de Système et d'Organe, Hôpital Cochin, DMU BioPhyGen, Assistance Publique-Hôpitaux de Paris, AP-HP, Centre-Université Paris Cité, F-75014 Paris, France
| | - Céline Colnot
- Université Paris Est Creteil, INSERM, IMRB, 94000 Creteil, France
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Ubogu EE, Conner JA, Wang Y, Yadav D, Saunders TL. Development of a major histocompatibility complex class II conditional knockout mouse to study cell-specific and time-dependent adaptive immune responses in peripheral nerves. Muscle Nerve 2024. [PMID: 38922958 DOI: 10.1002/mus.28193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 06/03/2024] [Accepted: 06/11/2024] [Indexed: 06/28/2024]
Abstract
INTRODUCTION/AIMS The precise relationship between molecular mimicry and tissue-specific autoimmunity is unknown. Major histocompatibility complex (MHC) class II antigen presenting cell-CD4+ T-cell receptor complex interactions are necessary for adaptive immunity. This study aimed to determine the role of endoneurial endothelial cell MHC class II in autoimmune polyneuropathy. METHODS Cryopreserved Guillain-Barré syndrome (GBS) patient sural nerve biopsies and sciatic nerves from the severe murine experimental autoimmune neuritis (sm-EAN) GBS model were studied. Cultured conditional ready MHC Class II antigen A-alpha chain (H2-Aa) embryonic stem cells were used to generate H2-Aaflox/+ C57BL/6 mice. Mice were backcrossed and intercrossed to the SJL background to generate H2-Aaflox/flox SJL mice, bred with hemizygous Tamoxifen-inducible von Willebrand factor Cre recombinase (vWF-iCre/+) SJL mice to generate H2-Aaflox/flox; vWF-iCre/+ mice to study microvascular endothelial cell adaptive immune responses. Sm-EAN was induced in Tamoxifen-treated H2-Aaflox/flox; vWF-iCre/+, H2-Aaflox/flox; +/+, H2-Aa+/+; vWF-iCre/+ and untreated H2-Aaflox/flox; vWF-iCre/+ adult female SJL mice. Neurobehavioral, electrophysiological and histopathological assessments were performed at predefined time points. RESULTS Endoneurial endothelial cell MHC class II expression was observed in normal and inflamed human and mouse peripheral nerves. Tamoxifen-treated H2-Aaflox/flox; vWF-iCre/+ mice were resistant to sm-EAN despite extensive MHC class II expression in lymphoid and non-lymphoid tissues. DISCUSSION A conditional MHC class II knockout mouse to study cell- and time-dependent adaptive immune responses in vivo was developed. Initial studies show microvascular endothelial cell MHC class II expression is necessary for peripheral nerve specific autoimmunity, as advocated by human in vitro adaptive immunity and ex vivo transplant rejection studies.
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Affiliation(s)
- Eroboghene E Ubogu
- Neuromuscular Immunopathology Research Laboratory, Division of Neuromuscular Disease, Department of Neurology, University of Alabama, Birmingham, Alabama, USA
| | - Jeremy A Conner
- Neuromuscular Immunopathology Research Laboratory, Division of Neuromuscular Disease, Department of Neurology, University of Alabama, Birmingham, Alabama, USA
| | - Yimin Wang
- Neuromuscular Immunopathology Research Laboratory, Division of Neuromuscular Disease, Department of Neurology, University of Alabama, Birmingham, Alabama, USA
| | - Dinesh Yadav
- Neuromuscular Immunopathology Research Laboratory, Division of Neuromuscular Disease, Department of Neurology, University of Alabama, Birmingham, Alabama, USA
| | - Thomas L Saunders
- Transgenic Animal Model Core, University of Michigan, Ann Arbor, Michigan, USA
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14
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Jimenez-Cyrus D, Adusumilli VS, Stempel MH, Maday S, Ming GL, Song H, Bond AM. Molecular cascade reveals sequential milestones underlying hippocampal neural stem cell development into an adult state. Cell Rep 2024; 43:114339. [PMID: 38852158 DOI: 10.1016/j.celrep.2024.114339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Revised: 04/16/2024] [Accepted: 05/23/2024] [Indexed: 06/11/2024] Open
Abstract
Quiescent adult neural stem cells (NSCs) in the mammalian brain arise from proliferating NSCs during development. Beyond acquisition of quiescence, an adult NSC hallmark, little is known about the process, milestones, and mechanisms underlying the transition of developmental NSCs to an adult NSC state. Here, we performed targeted single-cell RNA-seq analysis to reveal the molecular cascade underlying NSC development in the early postnatal mouse dentate gyrus. We identified two sequential steps, first a transition to quiescence followed by further maturation, each of which involved distinct changes in metabolic gene expression. Direct metabolic analysis uncovered distinct milestones, including an autophagy burst before NSC quiescence acquisition and cellular reactive oxygen species level elevation along NSC maturation. Functionally, autophagy is important for the NSC transition to quiescence during early postnatal development. Together, our study reveals a multi-step process with defined milestones underlying establishment of the adult NSC pool in the mammalian brain.
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Affiliation(s)
- Dennisse Jimenez-Cyrus
- Department of Neuroscience and Mahoney Institute for Neurosciences, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Vijay S Adusumilli
- Department of Neuroscience and Mahoney Institute for Neurosciences, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Max H Stempel
- Department of Neuroscience and Mahoney Institute for Neurosciences, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Sandra Maday
- Department of Neuroscience and Mahoney Institute for Neurosciences, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Guo-Li Ming
- Department of Neuroscience and Mahoney Institute for Neurosciences, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Cell and Developmental Biology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA; Institute for Regenerative Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Psychiatry, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Hongjun Song
- Department of Neuroscience and Mahoney Institute for Neurosciences, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Cell and Developmental Biology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA; Institute for Regenerative Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Neurosurgery, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA; The Epigenetics Institute, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA.
| | - Allison M Bond
- Department of Neuroscience and Mahoney Institute for Neurosciences, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104, USA; Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Department of Cell, Developmental and Regenerative Biology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Black Family Stem Cell Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
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15
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Yang N, Sun Y, Han B, Deng N, Li G, Han Q, Wang Y, Cai H, Liu F, Cao B, Deng W, Bao H, Kong S, Lu J, Wang H. Trophoblastic signals facilitate endometrial interferon response and lipid metabolism, ensuring normal decidualization. Cell Rep 2024; 43:114246. [PMID: 38762885 DOI: 10.1016/j.celrep.2024.114246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 04/04/2024] [Accepted: 05/02/2024] [Indexed: 05/21/2024] Open
Abstract
The decidua plays a crucial role in providing structural and trophic support to the developing conceptus before placentation. Following embryo attachment, embryonic components intimately interact with the decidual tissue. While evidence indicates the participation of embryo-derived factors in crosstalk with the uterus, the extent of their impact on post-implantation decidual development requires further investigation. Here, we utilize transgenic mouse models to selectively eliminate primary trophoblast giant cells (pTGCs), the embryonic cells that interface with maternal tissue at the forefront. pTGC ablation impairs decidualization and compromises decidual interferon response and lipid metabolism. Mechanistically, pTGCs release factors such as interferon kappa (IFNK) to strengthen the decidual interferon response and lipoprotein lipase (LPL) to enhance lipid accumulation within the decidua, thereby promoting decidualization. This study presents genetic and metabolomic evidence reinforcing the proactive role of pTGC-derived factors in mobilizing maternal resources to strengthen decidualization, facilitating the normal progression of early pregnancy.
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Affiliation(s)
- Ningjie Yang
- Fujian Provincial Key Laboratory of Reproductive Health Research, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian 361102, China
| | - Yang Sun
- Fujian Provincial Key Laboratory of Reproductive Health Research, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian 361102, China
| | - Bing Han
- Fujian Provincial Key Laboratory of Reproductive Health Research, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian 361102, China
| | - Na Deng
- Fujian Provincial Key Laboratory of Reproductive Health Research, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian 361102, China
| | - Gaizhen Li
- Fujian Provincial Key Laboratory of Reproductive Health Research, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian 361102, China
| | - Qian Han
- Fujian Provincial Key Laboratory of Reproductive Health Research, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian 361102, China
| | - Yinan Wang
- Fujian Provincial Key Laboratory of Reproductive Health Research, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian 361102, China
| | - Han Cai
- Fujian Provincial Key Laboratory of Reproductive Health Research, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian 361102, China
| | - Fan Liu
- Fujian Provincial Key Laboratory of Reproductive Health Research, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian 361102, China; State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, School of Medicine, Xiamen University, Xiamen, Fujian 361102, China
| | - Bin Cao
- Fujian Provincial Key Laboratory of Reproductive Health Research, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian 361102, China
| | - Wenbo Deng
- Fujian Provincial Key Laboratory of Reproductive Health Research, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian 361102, China
| | - Haili Bao
- Fujian Provincial Key Laboratory of Reproductive Health Research, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian 361102, China.
| | - Shuangbo Kong
- Fujian Provincial Key Laboratory of Reproductive Health Research, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian 361102, China.
| | - Jinhua Lu
- Fujian Provincial Key Laboratory of Reproductive Health Research, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian 361102, China.
| | - Haibin Wang
- Fujian Provincial Key Laboratory of Reproductive Health Research, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian 361102, China; State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, School of Medicine, Xiamen University, Xiamen, Fujian 361102, China.
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Yang M, Shulkin N, Gonzalez E, Castillo J, Yan C, Zhang K, Arvanitis L, Borok Z, Wallace WD, Raz D, Torres ETR, Marconett CN. Cell of origin alters myeloid-mediated immunosuppression in lung adenocarcinoma. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.19.599651. [PMID: 38948812 PMCID: PMC11213232 DOI: 10.1101/2024.06.19.599651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
Solid carcinomas are often highly heterogenous cancers, arising from multiple epithelial cells of origin. Yet, how the cell of origin influences the response of the tumor microenvironment is poorly understood. Lung adenocarcinoma (LUAD) arises in the distal alveolar epithelium which is populated primarily by alveolar epithelial type I (AT1) and type II (AT2) cells. It has been previously reported that Gramd2 + AT1 cells can give rise to a histologically-defined LUAD that is distinct in pathology and transcriptomic identity from that arising from Sftpc + AT2 cells1,2. To determine how cells of origin influence the tumor immune microenvironment (TIME) landscape, we comprehensively characterized transcriptomic, molecular, and cellular states within the TIME of Gramd2 + AT1 and Sftpc + AT2-derived LUAD using KRASG12D oncogenic driver mouse models. Myeloid cells within the Gramd2 + AT1-derived LUAD TIME were increased, specifically, immunoreactive monocytes and tumor associated macrophages (TAMs). In contrast, the Sftpc + AT2 LUAD TIME was enriched for Arginase-1+ myeloid derived suppressor cells (MDSC) and TAMs expressing profiles suggestive of immunosuppressive function. Validation of immune infiltration was performed using flow cytometry, and intercellular interaction analysis between the cells of origin and major myeloid cell populations indicated that cell-type specific markers SFTPD in AT2 cells and CAV1 in AT1 cells mediated unique interactions with myeloid cells of the differential immunosuppressive states within each cell of origin mouse model. Taken together, Gramd2 + AT1-derived LUAD presents with an anti-tumor, immunoreactive TIME, while the TIME of Sftpc + AT2-derived LUAD has hallmarks of immunosuppression. This study suggests that LUAD cell of origin influences the composition and suppression status of the TIME landscape and may hold critical implications for patient response to immunotherapy.
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Affiliation(s)
- Minxiao Yang
- Department of Integrative Translational Sciences, Beckman Research Institute, City of Hope, Duarte, CA USA 91010
- Department of Surgery, University of Southern California, Los Angeles, CA USA 90089
- Department of Translational Genomics, University of Southern California, Los Angeles, CA USA 90089
| | - Noah Shulkin
- Department of Integrative Translational Sciences, Beckman Research Institute, City of Hope, Duarte, CA USA 91010
| | - Edgar Gonzalez
- Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA USA 90089
| | - Jonathan Castillo
- Department of Integrative Translational Sciences, Beckman Research Institute, City of Hope, Duarte, CA USA 91010
| | - Chunli Yan
- Department of Surgery, University of Southern California, Los Angeles, CA USA 90089
| | - Keqiang Zhang
- Division of Thoracic Surgery, Department of Surgery, City of Hope National Medical Center, City of Hope, Duarte, CA USA 91010
| | - Leonidas Arvanitis
- Department of Pathology, City of Hope National Medical Center, City of Hope, Duarte, CA USA 91010
| | - Zea Borok
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of California, San Diego, La Jolla, CA USA 92093
| | - W Dean Wallace
- Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, CA USA 90089
| | - Dan Raz
- Division of Thoracic Surgery, Department of Surgery, City of Hope National Medical Center, City of Hope, Duarte, CA USA 91010
| | - Evanthia T Roussos Torres
- Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA USA 90089
| | - Crystal N Marconett
- Department of Integrative Translational Sciences, Beckman Research Institute, City of Hope, Duarte, CA USA 91010
- Department of Surgery, University of Southern California, Los Angeles, CA USA 90089
- Department of Translational Genomics, University of Southern California, Los Angeles, CA USA 90089
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17
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López DA, Griffin A, Aguilar LM, Deering-Rice C, Myers EJ, Warren KJ, Welner RS, Beaudin AE. Prenatal inflammation remodels lung immunity and function by programming ILC2 hyperactivation. Cell Rep 2024; 43:114365. [PMID: 38909363 DOI: 10.1016/j.celrep.2024.114365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 04/30/2024] [Accepted: 05/31/2024] [Indexed: 06/25/2024] Open
Abstract
Here, we examine how prenatal inflammation shapes tissue function and immunity in the lung by reprogramming tissue-resident immune cells from early development. Maternal, but not fetal, type I interferon-mediated inflammation provokes expansion and hyperactivation of group 2 innate lymphoid cells (ILC2s) seeding the developing lung. Hyperactivated ILC2s produce increased IL-5 and IL-13 and are associated with acute Th2 bias, decreased Tregs, and persistent lung eosinophilia into adulthood. ILC2 hyperactivation is recapitulated by adoptive transfer of fetal liver precursors following prenatal inflammation, indicative of developmental programming at the fetal progenitor level. Reprogrammed ILC2 hyperactivation and subsequent lung immune remodeling, including persistent eosinophilia, is concomitant with worsened histopathology and increased airway dysfunction equivalent to papain exposure, indicating increased asthma susceptibility in offspring. Our data elucidate a mechanism by which early-life inflammation results in increased asthma susceptibility in the presence of hyperactivated ILC2s that drive persistent changes to lung immunity during perinatal development.
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Affiliation(s)
- Diego A López
- Department of Pathology, University of Utah, Salt Lake City, UT, USA
| | - Aleah Griffin
- Department of Biomedical Engineering, University of Utah, Salt Lake City, UT, USA
| | - Lorena Moreno Aguilar
- Department of Population and Public Health Sciences, University of Southern California, Los Angeles, CA, USA
| | | | - Elizabeth J Myers
- Department of Neurology, University of Utah, Salt Lake City, UT, USA
| | - Kristi J Warren
- Department of Internal Medicine, University of Utah, Salt Lake City, UT, USA
| | - Robert S Welner
- Department of Medicine, University of Alabama, Birmingham, AL, USA
| | - Anna E Beaudin
- Department of Pathology, University of Utah, Salt Lake City, UT, USA; Department of Internal Medicine and Program in Molecular Medicine, University of Utah, Salt Lake City, UT, USA.
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18
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Zutshi N, Mohapatra BC, Mondal P, An W, Goetz BT, Wang S, Li S, Storck MD, Mercer DF, Black AR, Thayer SP, Black JD, Lin C, Band V, Band H. Cbl and Cbl-b ubiquitin ligases are essential for intestinal epithelial stem cell maintenance. iScience 2024; 27:109912. [PMID: 38974465 PMCID: PMC11225835 DOI: 10.1016/j.isci.2024.109912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 02/29/2024] [Accepted: 05/03/2024] [Indexed: 07/09/2024] Open
Abstract
Receptor tyrosine kinases (RTKs) control stem cell maintenance vs. differentiation decisions. Casitas B-lineage lymphoma (CBL) family ubiquitin ligases are negative regulators of RTKs, but their stem cell regulatory roles remain unclear. Here, we show that Lgr5+ intestinal stem cell (ISC)-specific inducible Cbl-knockout (KO) on a Cblb null mouse background (iDKO) induced rapid loss of the Lgr5 Hi ISCs with transient expansion of the Lgr5 Lo transit-amplifying population. LacZ-based lineage tracing revealed increased ISC commitment toward enterocyte and goblet cell fate at the expense of Paneth cells. Functionally, Cbl/Cblb iDKO impaired the recovery from radiation-induced intestinal epithelial injury. In vitro, Cbl/Cblb iDKO led to inability to maintain intestinal organoids. Single-cell RNA sequencing in organoids identified Akt-mTOR (mammalian target of rapamycin) pathway hyperactivation upon iDKO, and pharmacological Akt-mTOR axis inhibition rescued the iDKO defects. Our results demonstrate a requirement for Cbl/Cblb in the maintenance of ISCs by fine-tuning the Akt-mTOR axis to balance stem cell maintenance vs. commitment to differentiation.
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Affiliation(s)
- Neha Zutshi
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE 68198, USA
- Department of Pathology & Microbiology, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Bhopal C. Mohapatra
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE 68198, USA
- Department of Genetics, Cell Biology & Anatomy, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Pinaki Mondal
- Department of Surgery, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Wei An
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Benjamin T. Goetz
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Shuo Wang
- Department of Radiation Oncology, College of Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Sicong Li
- Department of Radiation Oncology, College of Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Matthew D. Storck
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - David F. Mercer
- Department of Surgery, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Adrian R. Black
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE 68198, USA
- Fred & Pamela Buffet Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Sarah P. Thayer
- Department of Surgery, University of Nebraska Medical Center, Omaha, NE 68198, USA
- Fred & Pamela Buffet Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Jennifer D. Black
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE 68198, USA
- Fred & Pamela Buffet Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Chi Lin
- Department of Radiation Oncology, College of Medicine, University of Nebraska Medical Center, Omaha, NE 68198, USA
- Fred & Pamela Buffet Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Vimla Band
- Department of Genetics, Cell Biology & Anatomy, University of Nebraska Medical Center, Omaha, NE 68198, USA
- Fred & Pamela Buffet Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Hamid Band
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE 68198, USA
- Department of Pathology & Microbiology, University of Nebraska Medical Center, Omaha, NE 68198, USA
- Department of Genetics, Cell Biology & Anatomy, University of Nebraska Medical Center, Omaha, NE 68198, USA
- Fred & Pamela Buffet Cancer Center, University of Nebraska Medical Center, Omaha, NE 68198, USA
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19
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Vaidya A, Moore S, Chatterjee S, Guerrero E, Kim M, Farbiak L, Dilliard SA, Siegwart DJ. Expanding RNAi to Kidneys, Lungs, and Spleen via Selective ORgan Targeting (SORT) siRNA Lipid Nanoparticles. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2313791. [PMID: 38973655 DOI: 10.1002/adma.202313791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 06/14/2024] [Indexed: 07/09/2024]
Abstract
Inhibition of disease-causing mutations using RNA interference (RNAi) has resulted in clinically approved medicines with additional candidates in late stage trials. However, targetable tissues currently in preclinical development are limited to liver following systemic intravenous (IV) administration because predictable delivery of siRNA to non-liver tissues remains an unsolved challenge. Here, evidence of durable extrahepatic gene silencing enabled by siRNA Selective ORgan Targeting lipid nanoparticles (siRNA SORT LNPs) to the kidneys, lungs, and spleen is provided. LNPs excel at dose-dependent silencing of tissue-enriched endogenous targets resulting in 60%-80% maximal knockdown after a single IV injection and up to 88% downregulation of protein expression in mouse lungs after two doses. To examine knockdown potency and unbiased organ targeting, B6.129TdTom/EGFP mice that constitutively express the TdTomato transgene across all cell types are utilized to demonstrate 58%, 45%, and 15% reduction in TdTomato fluorescence in lungs, spleen, and kidneys, respectively. Finally, physiological relevance of siRNA SORT LNP-mediated gene silencing is established via acute suppression of endogenous Tie2 which induces lung-specific phenotypic alteration of vascular endothelial barrier. Due to plethora of extrahepatic diseases that may benefit from RNAi interventions, it is anticipated that the findings will expand preclinical landscape of therapeutic targets beyond the liver.
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Affiliation(s)
- Amogh Vaidya
- Department of Biomedical Engineering, Department of Biochemistry, Simmons Comprehensive Cancer Center, Program in Genetic Drug Engineering, The University of Texas Southwestern Medical Center, Dallas, TX, 75235, USA
| | - Stephen Moore
- Department of Biomedical Engineering, Department of Biochemistry, Simmons Comprehensive Cancer Center, Program in Genetic Drug Engineering, The University of Texas Southwestern Medical Center, Dallas, TX, 75235, USA
| | - Sumanta Chatterjee
- Department of Biomedical Engineering, Department of Biochemistry, Simmons Comprehensive Cancer Center, Program in Genetic Drug Engineering, The University of Texas Southwestern Medical Center, Dallas, TX, 75235, USA
| | - Erick Guerrero
- Department of Biomedical Engineering, Department of Biochemistry, Simmons Comprehensive Cancer Center, Program in Genetic Drug Engineering, The University of Texas Southwestern Medical Center, Dallas, TX, 75235, USA
| | - Minjeong Kim
- Department of Biomedical Engineering, Department of Biochemistry, Simmons Comprehensive Cancer Center, Program in Genetic Drug Engineering, The University of Texas Southwestern Medical Center, Dallas, TX, 75235, USA
| | - Lukas Farbiak
- Department of Biomedical Engineering, Department of Biochemistry, Simmons Comprehensive Cancer Center, Program in Genetic Drug Engineering, The University of Texas Southwestern Medical Center, Dallas, TX, 75235, USA
| | - Sean A Dilliard
- Department of Biomedical Engineering, Department of Biochemistry, Simmons Comprehensive Cancer Center, Program in Genetic Drug Engineering, The University of Texas Southwestern Medical Center, Dallas, TX, 75235, USA
| | - Daniel J Siegwart
- Department of Biomedical Engineering, Department of Biochemistry, Simmons Comprehensive Cancer Center, Program in Genetic Drug Engineering, The University of Texas Southwestern Medical Center, Dallas, TX, 75235, USA
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20
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Linneberg-Agerholm M, Sell AC, Redó-Riveiro A, Perera M, Proks M, Knudsen TE, Barral A, Manzanares M, Brickman JM. The primitive endoderm supports lineage plasticity to enable regulative development. Cell 2024:S0092-8674(24)00595-6. [PMID: 38917790 DOI: 10.1016/j.cell.2024.05.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 02/27/2024] [Accepted: 05/28/2024] [Indexed: 06/27/2024]
Abstract
Mammalian blastocyst formation involves the specification of the trophectoderm followed by the differentiation of the inner cell mass into embryonic epiblast and extra-embryonic primitive endoderm (PrE). During this time, the embryo maintains a window of plasticity and can redirect its cellular fate when challenged experimentally. In this context, we found that the PrE alone was sufficient to regenerate a complete blastocyst and continue post-implantation development. We identify an in vitro population similar to the early PrE in vivo that exhibits the same embryonic and extra-embryonic potency and can form complete stem cell-based embryo models, termed blastoids. Commitment in the PrE is suppressed by JAK/STAT signaling, collaborating with OCT4 and the sustained expression of a subset of pluripotency-related transcription factors that safeguard an enhancer landscape permissive for multi-lineage differentiation. Our observations support the notion that transcription factor persistence underlies plasticity in regulative development and highlight the importance of the PrE in perturbed development.
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Affiliation(s)
- Madeleine Linneberg-Agerholm
- Novo Nordisk Foundation Center for Stem Cell Medicine (reNEW), University of Copenhagen, 2200 Copenhagen N, Denmark
| | - Annika Charlotte Sell
- Novo Nordisk Foundation Center for Stem Cell Medicine (reNEW), University of Copenhagen, 2200 Copenhagen N, Denmark
| | - Alba Redó-Riveiro
- Novo Nordisk Foundation Center for Stem Cell Medicine (reNEW), University of Copenhagen, 2200 Copenhagen N, Denmark
| | - Marta Perera
- Novo Nordisk Foundation Center for Stem Cell Medicine (reNEW), University of Copenhagen, 2200 Copenhagen N, Denmark
| | - Martin Proks
- Novo Nordisk Foundation Center for Stem Cell Medicine (reNEW), University of Copenhagen, 2200 Copenhagen N, Denmark
| | - Teresa E Knudsen
- Novo Nordisk Foundation Center for Stem Cell Medicine (reNEW), University of Copenhagen, 2200 Copenhagen N, Denmark
| | - Antonio Barral
- Centro de Biología Molecular Severo Ochoa (CBM), CSIC-UAM, 28049 Madrid, Spain
| | - Miguel Manzanares
- Centro de Biología Molecular Severo Ochoa (CBM), CSIC-UAM, 28049 Madrid, Spain
| | - Joshua M Brickman
- Novo Nordisk Foundation Center for Stem Cell Medicine (reNEW), University of Copenhagen, 2200 Copenhagen N, Denmark.
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21
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Feng J, Dong H, Lischinsky JE, Zhou J, Deng F, Zhuang C, Miao X, Wang H, Li G, Cai R, Xie H, Cui G, Lin D, Li Y. Monitoring norepinephrine release in vivo using next-generation GRAB NE sensors. Neuron 2024; 112:1930-1942.e6. [PMID: 38547869 DOI: 10.1016/j.neuron.2024.03.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 01/21/2024] [Accepted: 03/01/2024] [Indexed: 06/22/2024]
Abstract
Norepinephrine (NE) is an essential biogenic monoamine neurotransmitter. The first-generation NE sensor makes in vivo, real-time, cell-type-specific and region-specific NE detection possible, but its low NE sensitivity limits its utility. Here, we developed the second-generation GPCR-activation-based NE sensors (GRABNE2m and GRABNE2h) with a superior response and high sensitivity and selectivity to NE both in vitro and in vivo. Notably, these sensors can detect NE release triggered by either optogenetic or behavioral stimuli in freely moving mice, producing robust signals in the locus coeruleus and hypothalamus. With the development of a novel transgenic mouse line, we recorded both NE release and calcium dynamics with dual-color fiber photometry throughout the sleep-wake cycle; moreover, dual-color mesoscopic imaging revealed cell-type-specific spatiotemporal dynamics of NE and calcium during sensory processing and locomotion. Thus, these new GRABNE sensors are valuable tools for monitoring the precise spatiotemporal release of NE in vivo, providing new insights into the physiological and pathophysiological roles of NE.
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Affiliation(s)
- Jiesi Feng
- State Key Laboratory of Membrane Biology, School of Life Sciences, Peking University, Beijing 100871, China; PKU-IDG/McGovern Institute for Brain Research, Beijing 100871, China; Peking-Tsinghua Center for Life Sciences, New Cornerstone Science Laboratory, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China.
| | - Hui Dong
- State Key Laboratory of Membrane Biology, School of Life Sciences, Peking University, Beijing 100871, China; PKU-IDG/McGovern Institute for Brain Research, Beijing 100871, China; Peking-Tsinghua Center for Life Sciences, New Cornerstone Science Laboratory, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Julieta E Lischinsky
- Neuroscience Institute, New York University School of Medicine, New York, NY 10016, USA
| | - Jingheng Zhou
- Neurobiology Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709, USA
| | - Fei Deng
- State Key Laboratory of Membrane Biology, School of Life Sciences, Peking University, Beijing 100871, China; PKU-IDG/McGovern Institute for Brain Research, Beijing 100871, China
| | - Chaowei Zhuang
- Department of Automation, Tsinghua University, Beijing 100084, China
| | - Xiaolei Miao
- State Key Laboratory of Membrane Biology, School of Life Sciences, Peking University, Beijing 100871, China; PKU-IDG/McGovern Institute for Brain Research, Beijing 100871, China; Department of Anesthesiology, Beijing Chaoyang Hospital, Capital Medical University, 100020 Beijing, China
| | - Huan Wang
- State Key Laboratory of Membrane Biology, School of Life Sciences, Peking University, Beijing 100871, China; PKU-IDG/McGovern Institute for Brain Research, Beijing 100871, China
| | - Guochuan Li
- State Key Laboratory of Membrane Biology, School of Life Sciences, Peking University, Beijing 100871, China
| | - Ruyi Cai
- State Key Laboratory of Membrane Biology, School of Life Sciences, Peking University, Beijing 100871, China
| | - Hao Xie
- Department of Automation, Tsinghua University, Beijing 100084, China
| | - Guohong Cui
- Neurobiology Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709, USA
| | - Dayu Lin
- Neuroscience Institute, New York University School of Medicine, New York, NY 10016, USA
| | - Yulong Li
- State Key Laboratory of Membrane Biology, School of Life Sciences, Peking University, Beijing 100871, China; PKU-IDG/McGovern Institute for Brain Research, Beijing 100871, China; Peking-Tsinghua Center for Life Sciences, New Cornerstone Science Laboratory, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China; Chinese Institute for Brain Research, Beijing 102206, China; Institute of Molecular Physiology, Shenzhen Bay Laboratory, Shenzhen, Guangdong 518055, China; National Biomedical Imaging Center, Peking University, Beijing 100871, China.
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22
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Zerbib L, Ladraa S, Fraissenon A, Bayard C, Firpion M, Venot Q, Protic S, Hoguin C, Thomas A, Fraitag S, Duong JP, Kaltenbach S, Balducci E, Lefevre C, Villarese P, Asnafi V, Broissand C, Goudin N, Nemazanyy I, Autret G, Tavitian B, Legendre C, Arzouk N, Minard-Colin V, Chopinet C, Dussiot M, Adams DM, Mirault T, Guibaud L, Isenring P, Canaud G. Targeted therapy for capillary-venous malformations. Signal Transduct Target Ther 2024; 9:146. [PMID: 38880808 PMCID: PMC11180659 DOI: 10.1038/s41392-024-01862-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 04/19/2024] [Accepted: 05/12/2024] [Indexed: 06/18/2024] Open
Abstract
Sporadic venous malformations are genetic conditions primarily caused by somatic gain-of-function mutation of PIK3CA or TEK, an endothelial transmembrane receptor signaling through PIK3CA. Venous malformations are associated with pain, bleedings, thrombosis, pulmonary embolism, esthetic deformities and, in severe cases, life-threatening situations. No authorized medical treatment exists for patients with venous malformations. Here, we created a genetic mouse model of PIK3CA-related capillary venous malformations that replicates patient phenotypes. We showed that these malformations only partially signal through AKT proteins. We compared the efficacy of different drugs, including rapamycin, a mTORC1 inhibitor, miransertib, an AKT inhibitor and alpelisib, a PI3Kα inhibitor at improving the lesions seen in the mouse model. We demonstrated the effectiveness of alpelisib in preventing vascular malformations' occurrence, improving the already established ones, and prolonging survival. Considering these findings, we were authorized to treat 25 patients with alpelisib, including 7 children displaying PIK3CA (n = 16) or TEK (n = 9)-related capillary venous malformations resistant to usual therapies including sirolimus, debulking surgical procedures or percutaneous sclerotherapies. We assessed the volume of vascular malformations using magnetic resonance imaging (MRI) for each patient. Alpelisib demonstrated improvement in all 25 patients. Vascular malformations previously considered intractable were reduced and clinical symptoms were attenuated. MRI showed a decrease of 33.4% and 27.8% in the median volume of PIK3CA and TEK malformations respectively, over 6 months on alpelisib. In conclusion, this study supports PI3Kα inhibition as a promising therapeutic strategy in patients with PIK3CA or TEK-related capillary venous malformations.
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Affiliation(s)
- Lola Zerbib
- Université Paris Cité, Paris, France
- INSERM U1151, Institut Necker-Enfants Malades, Paris, France
| | - Sophia Ladraa
- Université Paris Cité, Paris, France
- INSERM U1151, Institut Necker-Enfants Malades, Paris, France
| | - Antoine Fraissenon
- INSERM U1151, Institut Necker-Enfants Malades, Paris, France
- Service d'Imagerie Pédiatrique, Hôpital Femme-Mère-Enfant, HCL, Bron, France
- CREATIS UMR 5220, Villeurbanne, 69100, France
- Service de Radiologie Mère-Enfant, Hôpital Nord, Saint Etienne, France
| | - Charles Bayard
- Université Paris Cité, Paris, France
- INSERM U1151, Institut Necker-Enfants Malades, Paris, France
| | - Marina Firpion
- Université Paris Cité, Paris, France
- INSERM U1151, Institut Necker-Enfants Malades, Paris, France
| | - Quitterie Venot
- Université Paris Cité, Paris, France
- INSERM U1151, Institut Necker-Enfants Malades, Paris, France
| | - Sanela Protic
- Université Paris Cité, Paris, France
- INSERM U1151, Institut Necker-Enfants Malades, Paris, France
| | - Clément Hoguin
- Université Paris Cité, Paris, France
- INSERM U1151, Institut Necker-Enfants Malades, Paris, France
| | - Amandine Thomas
- INSERM U1151, Institut Necker-Enfants Malades, Paris, France
| | - Sylvie Fraitag
- Service d'Anatomie pathologique, Hôpital Necker-Enfants Malades, AP-HP, Paris, France
| | - Jean-Paul Duong
- Université Paris Cité, Paris, France
- Service d'Anatomie pathologique, Hôpital Necker-Enfants Malades, AP-HP, Paris, France
| | - Sophie Kaltenbach
- Laboratoire d'Oncohématologie, Hôpital Necker-Enfants Malades, AP-HP, Paris, France
| | - Estelle Balducci
- Université Paris Cité, Paris, France
- Laboratoire d'Oncohématologie, Hôpital Necker-Enfants Malades, AP-HP, Paris, France
| | - Coline Lefevre
- Laboratoire d'Oncohématologie, Hôpital Necker-Enfants Malades, AP-HP, Paris, France
| | - Patrick Villarese
- Laboratoire d'Oncohématologie, Hôpital Necker-Enfants Malades, AP-HP, Paris, France
| | - Vahid Asnafi
- Université Paris Cité, Paris, France
- INSERM U1151, Institut Necker-Enfants Malades, Paris, France
- Laboratoire d'Oncohématologie, Hôpital Necker-Enfants Malades, AP-HP, Paris, France
| | | | - Nicolas Goudin
- Necker Bio-Image Analysis, INSERM US24/CNRS UMS 3633, Paris, France
| | - Ivan Nemazanyy
- Platform for Metabolic Analyses, Structure Fédérative de Recherche Necker, INSERM US24/CNRS UMS 3633, Paris, France
| | - Gwennhael Autret
- Plateforme Imageries du Vivant, Université de Paris, PARCC, INSERM, Paris, France
| | - Bertrand Tavitian
- Plateforme Imageries du Vivant, Université de Paris, PARCC, INSERM, Paris, France
| | - Christophe Legendre
- Université Paris Cité, Paris, France
- INSERM U1151, Institut Necker-Enfants Malades, Paris, France
- Service de Néphrologie, Transplantation Adultes, Hôpital Necker-Enfants Malades, AP-HP, Paris, France
| | - Nadia Arzouk
- Service de Transplantation, Hôpital La Pitié Salpétrière, AP-HP, Paris, France
| | - Veronique Minard-Colin
- Department of Pediatric and Adolescent Oncology, INSERM 1015, Gustave Roussy, Université Paris-Saclay, Villejuif, France
| | - Caroline Chopinet
- Service de Physiologie & Explorations Fonctionnelles Cardiovasculaires, CHU de Lille, Lille, 59000, France
| | - Michael Dussiot
- INSERM U1163, Laboratory of Cellular and Molecular Mechanisms of Hematological Disorders and Therapeutic Implications, Laboratoire d'Excellence GR-Ex, Paris, France
| | - Denise M Adams
- Division of Oncology, Comprehensive Vascular Anomalies Program, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Tristan Mirault
- Université Paris Cité, Paris, France
- Service de Médecine Vasculaire, hôpital Européen Georges-Pompidou, Paris, France
| | - Laurent Guibaud
- INSERM U1151, Institut Necker-Enfants Malades, Paris, France
- Service d'Imagerie Pédiatrique, Hôpital Femme-Mère-Enfant, HCL, Bron, France
| | - Paul Isenring
- Nephrology Research Group, L'Hôtel-Dieu de Québec Research Center, Department of Medicine, Faculty of Medicine, Laval University, Quebec, QC, G1R2J6, Canada
| | - Guillaume Canaud
- Université Paris Cité, Paris, France.
- INSERM U1151, Institut Necker-Enfants Malades, Paris, France.
- Unité de médecine translationnelle et thérapies ciblées, Hôpital Necker-Enfants Malades, AP-HP, Paris, France.
- CNRS UMR8253, Institut Necker-Enfants Malades, Paris, France.
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23
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Polsani N, Yung T, Thomas E, Phung-Rojas M, Gupta I, Denker J, Lau K, Feng X, Ibarra B, Hopyan S, Atit RP. Mesenchymal Wnts are required for morphogenetic movements of calvarial osteoblasts during apical expansion. Development 2024; 151:dev202596. [PMID: 38814743 PMCID: PMC11234264 DOI: 10.1242/dev.202596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 05/13/2024] [Indexed: 06/01/2024]
Abstract
Apical expansion of calvarial osteoblast progenitors from the cranial mesenchyme (CM) above the eye is integral to calvarial growth and enclosure of the brain. The cellular behaviors and signals underlying the morphogenetic process of calvarial expansion are unknown. Time-lapse light-sheet imaging of mouse embryos revealed calvarial progenitors intercalate in 3D in the CM above the eye, and exhibit protrusive and crawling activity more apically. CM cells express non-canonical Wnt/planar cell polarity (PCP) core components and calvarial osteoblasts are bidirectionally polarized. We found non-canonical ligand Wnt5a-/- mutants have less dynamic cell rearrangements and protrusive activity. Loss of CM-restricted Wntless (CM-Wls), a gene required for secretion of all Wnt ligands, led to diminished apical expansion of Osx+ calvarial osteoblasts in the frontal bone primordia in a non-cell autonomous manner without perturbing proliferation or survival. Calvarial osteoblast polarization, progressive cell elongation and enrichment for actin along the baso-apical axis were dependent on CM-Wnts. Thus, CM-Wnts regulate cellular behaviors during calvarial morphogenesis for efficient apical expansion of calvarial osteoblasts. These findings also offer potential insights into the etiologies of calvarial dysplasias.
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Affiliation(s)
- Nikaya Polsani
- Department of Biology, Research Institute, The Hospital for Sick Children, Toronto, ON M5G 0A4, Canada
| | - Theodora Yung
- Program in Developmental and Stem Cell Biology, Research Institute, The Hospital for Sick Children, Toronto, ON M5G 0A4, Canada
| | - Evan Thomas
- Program in Developmental and Stem Cell Biology, Research Institute, The Hospital for Sick Children, Toronto, ON M5G 0A4, Canada
| | - Melissa Phung-Rojas
- Department of Biology, Research Institute, The Hospital for Sick Children, Toronto, ON M5G 0A4, Canada
| | - Isha Gupta
- Department of Biology, Research Institute, The Hospital for Sick Children, Toronto, ON M5G 0A4, Canada
| | - Julie Denker
- Department of Biology, Research Institute, The Hospital for Sick Children, Toronto, ON M5G 0A4, Canada
| | - Kimberly Lau
- Program in Developmental and Stem Cell Biology, Research Institute, The Hospital for Sick Children, Toronto, ON M5G 0A4, Canada
| | - Xiaotian Feng
- Department of Biology, Research Institute, The Hospital for Sick Children, Toronto, ON M5G 0A4, Canada
| | - Beatriz Ibarra
- Department of Biology, Research Institute, The Hospital for Sick Children, Toronto, ON M5G 0A4, Canada
| | - Sevan Hopyan
- Program in Developmental and Stem Cell Biology, Research Institute, The Hospital for Sick Children, Toronto, ON M5G 0A4, Canada
- Division of Orthopedics, The Hospital for Sick Children and Departments of Molecular Genetics and Surgery, University of Toronto, Toronto, ON M5G 1X8, Canada
| | - Radhika P Atit
- Department of Biology, Research Institute, The Hospital for Sick Children, Toronto, ON M5G 0A4, Canada
- Department of Dermatology, Research Institute, The Hospital for Sick Children, Toronto, ON M5G 0A4, Canada
- Department of Genetics and Genome Sciences, Research Institute, The Hospital for Sick Children, Toronto, ON M5G 0A4, Canada
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24
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Sun Y, Chatterjee S, Lian X, Traylor Z, Sattiraju SR, Xiao Y, Dilliard SA, Sung YC, Kim M, Lee SM, Moore S, Wang X, Zhang D, Wu S, Basak P, Wang J, Liu J, Mann RJ, LePage DF, Jiang W, Abid S, Hennig M, Martinez A, Wustman BA, Lockhart DJ, Jain R, Conlon RA, Drumm ML, Hodges CA, Siegwart DJ. In vivo editing of lung stem cells for durable gene correction in mice. Science 2024; 384:1196-1202. [PMID: 38870301 DOI: 10.1126/science.adk9428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 04/17/2024] [Indexed: 06/15/2024]
Abstract
In vivo genome correction holds promise for generating durable disease cures; yet, effective stem cell editing remains challenging. In this work, we demonstrate that optimized lung-targeting lipid nanoparticles (LNPs) enable high levels of genome editing in stem cells, yielding durable responses. Intravenously administered gene-editing LNPs in activatable tdTomato mice achieved >70% lung stem cell editing, sustaining tdTomato expression in >80% of lung epithelial cells for 660 days. Addressing cystic fibrosis (CF), NG-ABE8e messenger RNA (mRNA)-sgR553X LNPs mediated >95% cystic fibrosis transmembrane conductance regulator (CFTR) DNA correction, restored CFTR function in primary patient-derived bronchial epithelial cells equivalent to Trikafta for F508del, corrected intestinal organoids and corrected R553X nonsense mutations in 50% of lung stem cells in CF mice. These findings introduce LNP-enabled tissue stem cell editing for disease-modifying genome correction.
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Affiliation(s)
- Yehui Sun
- Department of Biomedical Engineering, Department of Biochemistry, Simmons Comprehensive Cancer Center, Program in Genetic Drug Engineering, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Sumanta Chatterjee
- Department of Biomedical Engineering, Department of Biochemistry, Simmons Comprehensive Cancer Center, Program in Genetic Drug Engineering, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Xizhen Lian
- Department of Biomedical Engineering, Department of Biochemistry, Simmons Comprehensive Cancer Center, Program in Genetic Drug Engineering, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Zachary Traylor
- Department of Genetics and Genome Sciences, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
| | | | - Yufen Xiao
- Department of Biomedical Engineering, Department of Biochemistry, Simmons Comprehensive Cancer Center, Program in Genetic Drug Engineering, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Sean A Dilliard
- Department of Biomedical Engineering, Department of Biochemistry, Simmons Comprehensive Cancer Center, Program in Genetic Drug Engineering, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Yun-Chieh Sung
- Department of Biomedical Engineering, Department of Biochemistry, Simmons Comprehensive Cancer Center, Program in Genetic Drug Engineering, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Minjeong Kim
- Department of Biomedical Engineering, Department of Biochemistry, Simmons Comprehensive Cancer Center, Program in Genetic Drug Engineering, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Sang M Lee
- Department of Biomedical Engineering, Department of Biochemistry, Simmons Comprehensive Cancer Center, Program in Genetic Drug Engineering, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Stephen Moore
- Department of Biomedical Engineering, Department of Biochemistry, Simmons Comprehensive Cancer Center, Program in Genetic Drug Engineering, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Xu Wang
- Department of Biomedical Engineering, Department of Biochemistry, Simmons Comprehensive Cancer Center, Program in Genetic Drug Engineering, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Di Zhang
- Department of Biomedical Engineering, Department of Biochemistry, Simmons Comprehensive Cancer Center, Program in Genetic Drug Engineering, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Shiying Wu
- Department of Biomedical Engineering, Department of Biochemistry, Simmons Comprehensive Cancer Center, Program in Genetic Drug Engineering, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Pratima Basak
- Department of Biomedical Engineering, Department of Biochemistry, Simmons Comprehensive Cancer Center, Program in Genetic Drug Engineering, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Jialu Wang
- ReCode Therapeutics, Menlo Park, CA 94025, USA
| | - Jing Liu
- ReCode Therapeutics, Menlo Park, CA 94025, USA
| | - Rachel J Mann
- Department of Genetics and Genome Sciences, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
| | - David F LePage
- Department of Genetics and Genome Sciences, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
| | - Weihong Jiang
- Department of Genetics and Genome Sciences, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
| | - Shadaan Abid
- Department of Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | | | | | | | | | - Raksha Jain
- Department of Internal Medicine, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Ronald A Conlon
- Department of Genetics and Genome Sciences, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
| | - Mitchell L Drumm
- Department of Genetics and Genome Sciences, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
| | - Craig A Hodges
- Department of Genetics and Genome Sciences, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
| | - Daniel J Siegwart
- Department of Biomedical Engineering, Department of Biochemistry, Simmons Comprehensive Cancer Center, Program in Genetic Drug Engineering, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
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25
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Dawson M, Flores D, Zou L, Anandasenthil S, Mahesh R, Zavala-Romero O, Arora R. Imaging the dynamics of murine uterine contractions in early pregnancy†. Biol Reprod 2024; 110:1175-1190. [PMID: 38713674 PMCID: PMC11180618 DOI: 10.1093/biolre/ioae071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 04/03/2024] [Accepted: 05/02/2024] [Indexed: 05/09/2024] Open
Abstract
Uterine muscle contractility is essential for reproductive processes including sperm and embryo transport, and during the uterine cycle to remove menstrual effluent. Even still, uterine contractions have primarily been studied in the context of preterm labor. This is partly due to a lack of methods for studying the uterine muscle contractility in the intact organ. Here, we describe an imaging-based method to evaluate mouse uterine contractility of both the longitudinal and circular muscles in the cycling stages and in early pregnancy. By transforming the image-based data into three-dimensional spatiotemporal contractility maps, we calculate waveform characteristics of muscle contractions, including amplitude, frequency, wavelength, and velocity. We report that the native organ is highly contractile during the progesterone-dominant diestrus stage of the cycle when compared to the estrogen-dominant proestrus and estrus stages. We also observed that during the first phase of uterine embryo movement when clustered embryos move toward the middle of the uterine horn, contractions are dynamic and non-uniform between different segments of the uterine horn. In the second phase of embryo movement, contractions are more uniform and rhythmic throughout the uterine horn. Finally, in Lpar3-/- uteri, which display faster embryo movement, we observe global and regional increases in contractility. Our method provides a means to understand the wave characteristics of uterine smooth muscle in response to modulators and in genetic mutants. Better understanding uterine contractility in the early pregnancy stages is critical for the advancement of artificial reproductive technologies and a possibility of modulating embryo movement during clinical embryo transfers.
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Affiliation(s)
- Madeline Dawson
- Department of Obstetrics, Gynecology and Reproductive Biology, Michigan State University, East Lansing, Michigan, USA
- Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, Michigan, USA
| | - Diana Flores
- Department of Obstetrics, Gynecology and Reproductive Biology, Michigan State University, East Lansing, Michigan, USA
- Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, Michigan, USA
| | - Lisa Zou
- Department of Obstetrics, Gynecology and Reproductive Biology, Michigan State University, East Lansing, Michigan, USA
- Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, Michigan, USA
| | - Shivani Anandasenthil
- Department of Obstetrics, Gynecology and Reproductive Biology, Michigan State University, East Lansing, Michigan, USA
- Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, Michigan, USA
| | - Rohit Mahesh
- Department of Obstetrics, Gynecology and Reproductive Biology, Michigan State University, East Lansing, Michigan, USA
- Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, Michigan, USA
| | - Olmo Zavala-Romero
- Department of Scientific Computing, Florida State University, Tallahassee, Florida, USA
| | - Ripla Arora
- Department of Obstetrics, Gynecology and Reproductive Biology, Michigan State University, East Lansing, Michigan, USA
- Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, Michigan, USA
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26
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Miyazaki N, Takami S, Uemura M, Oiki H, Takahashi M, Kawashima H, Kanamori Y, Yoshioka T, Kasahara M, Nakazawa A, Higashi M, Yanagida A, Hiramatsu R, Kanai-Azuma M, Fujishiro J, Kanai Y. Impact of gallbladder hypoplasia on hilar hepatic ducts in biliary atresia. COMMUNICATIONS MEDICINE 2024; 4:111. [PMID: 38862768 PMCID: PMC11166647 DOI: 10.1038/s43856-024-00544-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 06/03/2024] [Indexed: 06/13/2024] Open
Abstract
BACKGROUND Biliary atresia (BA) is an intractable disease of unknown cause that develops in the neonatal period. It causes jaundice and liver damage due to the destruction of extrahepatic biliary tracts,. We have found that heterozygous knockout mice of the SRY related HMG-box 17 (Sox17) gene, a master regulator of stem/progenitor cells in the gallbladder wall, exhibit a condition like BA. However, the precise contribution of hypoplastic gallbladder wall to the pathogenesis of hepatobiliary disease in Sox17 heterozygous embryos and human BA remains unclear. METHODS We employed cholangiography and histological analyses in the mouse BA model. Furthermore, we conducted a retrospective analysis of human BA. RESULTS We show that gallbladder wall hypoplasia causes abnormal multiple connections between the hilar hepatic bile ducts and the gallbladder-cystic duct in Sox17 heterozygous embryos. These multiple hilar extrahepatic ducts fuse with the developing intrahepatic duct walls and pull them out of the liver parenchyma, resulting in abnormal intrahepatic duct network and severe cholestasis. In human BA with gallbladder wall hypoplasia (i.e., abnormally reduced expression of SOX17), we also identify a strong association between reduced gallbladder width (a morphometric parameter indicating gallbladder wall hypoplasia) and severe liver injury at the time of the Kasai surgery, like the Sox17-mutant mouse model. CONCLUSIONS Together with the close correlation between gallbladder wall hypoplasia and liver damage in both mouse and human cases, these findings provide an insight into the critical role of SOX17-positive gallbladder walls in establishing functional bile duct networks in the hepatic hilus of neonates.
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Affiliation(s)
- Nanae Miyazaki
- Department of Veterinary Anatomy, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Shohei Takami
- Department of Veterinary Anatomy, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
- Department of Pediatric Surgery, the University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Mami Uemura
- Department of Veterinary Anatomy, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
- Center for Experimental Animals, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo, Japan
| | - Hironobu Oiki
- Department of Veterinary Anatomy, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
- Department of Pediatric Surgery, the University of Tokyo, Bunkyo-ku, Tokyo, Japan
- Department of Surgery, Saitama Children's Medical Center, Saitama, Saitama, Japan
| | - Masataka Takahashi
- Division of Surgery, Department of Surgical Specialties, National Center for Child Health and Development, Setagaya-ku, Tokyo, Japan
| | - Hiroshi Kawashima
- Department of Surgery, Saitama Children's Medical Center, Saitama, Saitama, Japan
| | - Yutaka Kanamori
- Division of Surgery, Department of Surgical Specialties, National Center for Child Health and Development, Setagaya-ku, Tokyo, Japan
| | - Takako Yoshioka
- Department of Pathology, National Center for Child Health and Development, Setagaya-ku, Tokyo, Japan
| | - Mureo Kasahara
- Organ Transplantation Center, National Center for Child Health and Development, Setagaya-ku, Tokyo, Japan
| | - Atsuko Nakazawa
- Department of Clinical Research, Saitama Children's Medical Center, Saitama, Saitama, Japan
| | - Mayumi Higashi
- Department of Pediatric Surgery, Kyoto Prefectural University of Medicine, Kyoto Kamikyo-ku, Kyoto, Japan
| | - Ayaka Yanagida
- Department of Veterinary Anatomy, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Ryuji Hiramatsu
- Department of Veterinary Anatomy, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Masami Kanai-Azuma
- Center for Experimental Animals, Tokyo Medical and Dental University, Bunkyo-ku, Tokyo, Japan
| | - Jun Fujishiro
- Department of Pediatric Surgery, the University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Yoshiakira Kanai
- Department of Veterinary Anatomy, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.
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27
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Garcia-Gonzalez I, Rocha SF, Hamidi A, Garcia-Ortega L, Regano A, Sanchez-Muñoz MS, Lytvyn M, Garcia-Cabero A, Roig-Soucase S, Schoofs H, Castro M, Sabata H, Potente M, Graupera M, Makinen T, Benedito R. iSuRe-HadCre is an essential tool for effective conditional genetics. Nucleic Acids Res 2024:gkae472. [PMID: 38850155 DOI: 10.1093/nar/gkae472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 05/04/2024] [Accepted: 06/05/2024] [Indexed: 06/10/2024] Open
Abstract
Methods for modifying gene function at high spatiotemporal resolution in mice have revolutionized biomedical research, with Cre-loxP being the most widely used technology. However, the Cre-loxP technology has several drawbacks, including weak activity, leakiness, toxicity, and low reliability of existing Cre-reporters. This is mainly because different genes flanked by loxP sites (floxed) vary widely in their sensitivity to Cre-mediated recombination. Here, we report the generation, validation, and utility of iSuRe-HadCre, a new dual Cre-reporter and deleter mouse line that avoids these drawbacks. iSuRe-HadCre achieves this through a novel inducible dual-recombinase genetic cascade that ensures that cells expressing a fluorescent reporter had only transient Cre activity, that is nonetheless sufficient to effectively delete floxed genes. iSuRe-HadCre worked reliably in all cell types and for the 13 floxed genes tested. This new tool will enable the precise, efficient, and trustworthy analysis of gene function in entire mouse tissues or in single cells.
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Affiliation(s)
- Irene Garcia-Gonzalez
- Molecular Genetics of Angiogenesis Group, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Susana F Rocha
- Molecular Genetics of Angiogenesis Group, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Anahita Hamidi
- Molecular Genetics of Angiogenesis Group, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Lourdes Garcia-Ortega
- Molecular Genetics of Angiogenesis Group, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Alvaro Regano
- Molecular Genetics of Angiogenesis Group, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Maria S Sanchez-Muñoz
- Molecular Genetics of Angiogenesis Group, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Mariya Lytvyn
- Molecular Genetics of Angiogenesis Group, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Aroa Garcia-Cabero
- Molecular Genetics of Angiogenesis Group, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Sergi Roig-Soucase
- Molecular Genetics of Angiogenesis Group, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Hans Schoofs
- Uppsala University, Department of Immunology, Genetics and Pathology, Dag Hammarskjölds väg 20, 751 85 Uppsala, Sweden
| | - Marco Castro
- Angiogenesis & Metabolism Laboratory, Center of Vascular Biomedicine, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany
| | - Helena Sabata
- Endothelial Pathobiology and Microenviroment Group, Josep Carreras Leukaemia Research Institute (IJC), 08916 Badalona, Barcelona, Catalonia, Spain
| | - Michael Potente
- Angiogenesis & Metabolism Laboratory, Center of Vascular Biomedicine, Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Berlin, Germany
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany
| | - Mariona Graupera
- Endothelial Pathobiology and Microenviroment Group, Josep Carreras Leukaemia Research Institute (IJC), 08916 Badalona, Barcelona, Catalonia, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Instituto de Salud Carlos III, Av. de Monforte de Lemos, 5, 28029 Madrid, Spain
- ICREA, Institució Catalana de Recerca i Estudis Avançats, Pg. Lluís Companys 23, Barcelona, Spain
| | - Taija Makinen
- Uppsala University, Department of Immunology, Genetics and Pathology, Dag Hammarskjölds väg 20, 751 85 Uppsala, Sweden
- Translational Cancer Medicine Program, Research Programs Unit, Biomedicum Helsinki, University of Helsinki, Haartmaninkatu 8, 00014 Helsinki, Finland
- Wihuri Research Institute, Haartmaninkatu 8, 00290 Helsinki, Finland
| | - Rui Benedito
- Molecular Genetics of Angiogenesis Group, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
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28
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Poscablo DM, Worthington AK, Smith-Berdan S, Rommel MGE, Manso BA, Adili R, Mok L, Reggiardo RE, Cool T, Mogharrab R, Myers J, Dahmen S, Medina P, Beaudin AE, Boyer SW, Holinstat M, Jonsson VD, Forsberg EC. An age-progressive platelet differentiation path from hematopoietic stem cells causes exacerbated thrombosis. Cell 2024; 187:3090-3107.e21. [PMID: 38749423 DOI: 10.1016/j.cell.2024.04.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Revised: 02/05/2024] [Accepted: 04/16/2024] [Indexed: 06/09/2024]
Abstract
Platelet dysregulation is drastically increased with advanced age and contributes to making cardiovascular disorders the leading cause of death of elderly humans. Here, we reveal a direct differentiation pathway from hematopoietic stem cells into platelets that is progressively propagated upon aging. Remarkably, the aging-enriched platelet path is decoupled from all other hematopoietic lineages, including erythropoiesis, and operates as an additional layer in parallel with canonical platelet production. This results in two molecularly and functionally distinct populations of megakaryocyte progenitors. The age-induced megakaryocyte progenitors have a profoundly enhanced capacity to engraft, expand, restore, and reconstitute platelets in situ and upon transplantation and produce an additional platelet population in old mice. The two pools of co-existing platelets cause age-related thrombocytosis and dramatically increased thrombosis in vivo. Strikingly, aging-enriched platelets are functionally hyper-reactive compared with the canonical platelet populations. These findings reveal stem cell-based aging as a mechanism for platelet dysregulation and age-induced thrombosis.
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Affiliation(s)
- Donna M Poscablo
- Institute for the Biology of Stem Cells, University of California, Santa Cruz, Santa Cruz, CA 95064, USA; Program in Biomedical Science and Engineering, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Atesh K Worthington
- Institute for the Biology of Stem Cells, University of California, Santa Cruz, Santa Cruz, CA 95064, USA; Program in Biomedical Science and Engineering, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Stephanie Smith-Berdan
- Institute for the Biology of Stem Cells, University of California, Santa Cruz, Santa Cruz, CA 95064, USA; Biomolecular Engineering, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Marcel G E Rommel
- Institute for the Biology of Stem Cells, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Bryce A Manso
- Institute for the Biology of Stem Cells, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Reheman Adili
- Department of Pharmacology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Lydia Mok
- Program in Biomedical Science and Engineering, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Roman E Reggiardo
- Institute for the Biology of Stem Cells, University of California, Santa Cruz, Santa Cruz, CA 95064, USA; Program in Biomedical Science and Engineering, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Taylor Cool
- Institute for the Biology of Stem Cells, University of California, Santa Cruz, Santa Cruz, CA 95064, USA; Program in Biomedical Science and Engineering, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Raana Mogharrab
- Institute for the Biology of Stem Cells, University of California, Santa Cruz, Santa Cruz, CA 95064, USA; Program in Biomedical Science and Engineering, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Jenna Myers
- Institute for the Biology of Stem Cells, University of California, Santa Cruz, Santa Cruz, CA 95064, USA; Program in Biomedical Science and Engineering, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Steven Dahmen
- Institute for the Biology of Stem Cells, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Paloma Medina
- Institute for the Biology of Stem Cells, University of California, Santa Cruz, Santa Cruz, CA 95064, USA; Biomolecular Engineering, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Anna E Beaudin
- Institute for the Biology of Stem Cells, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Scott W Boyer
- Institute for the Biology of Stem Cells, University of California, Santa Cruz, Santa Cruz, CA 95064, USA; Program in Biomedical Science and Engineering, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - Michael Holinstat
- Department of Pharmacology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Vanessa D Jonsson
- Institute for the Biology of Stem Cells, University of California, Santa Cruz, Santa Cruz, CA 95064, USA; Biomolecular Engineering, University of California, Santa Cruz, Santa Cruz, CA 95064, USA; Applied Mathematics, Genomics Institute, University of California, Santa Cruz, Santa Cruz, CA 95064, USA
| | - E Camilla Forsberg
- Institute for the Biology of Stem Cells, University of California, Santa Cruz, Santa Cruz, CA 95064, USA; Biomolecular Engineering, University of California, Santa Cruz, Santa Cruz, CA 95064, USA.
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29
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Huycke TR, Häkkinen TJ, Miyazaki H, Srivastava V, Barruet E, McGinnis CS, Kalantari A, Cornwall-Scoones J, Vaka D, Zhu Q, Jo H, Oria R, Weaver VM, DeGrado WF, Thomson M, Garikipati K, Boffelli D, Klein OD, Gartner ZJ. Patterning and folding of intestinal villi by active mesenchymal dewetting. Cell 2024; 187:3072-3089.e20. [PMID: 38781967 PMCID: PMC11166531 DOI: 10.1016/j.cell.2024.04.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 12/30/2023] [Accepted: 04/26/2024] [Indexed: 05/25/2024]
Abstract
Tissue folds are structural motifs critical to organ function. In the intestine, bending of a flat epithelium into a periodic pattern of folds gives rise to villi, finger-like protrusions that enable nutrient absorption. However, the molecular and mechanical processes driving villus morphogenesis remain unclear. Here, we identify an active mechanical mechanism that simultaneously patterns and folds the intestinal epithelium to initiate villus formation. At the cellular level, we find that PDGFRA+ subepithelial mesenchymal cells generate myosin II-dependent forces sufficient to produce patterned curvature in neighboring tissue interfaces. This symmetry-breaking process requires altered cell and extracellular matrix interactions that are enabled by matrix metalloproteinase-mediated tissue fluidization. Computational models, together with in vitro and in vivo experiments, revealed that these cellular features manifest at the tissue level as differences in interfacial tensions that promote mesenchymal aggregation and interface bending through a process analogous to the active dewetting of a thin liquid film.
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Affiliation(s)
- Tyler R Huycke
- Department of Pharmaceutical Chemistry, University of California, San Francisco, San Francisco, CA, USA; Program in Craniofacial Biology and Department of Orofacial Sciences, University of California, San Francisco, San Francisco, CA, USA
| | - Teemu J Häkkinen
- Department of Pharmaceutical Chemistry, University of California, San Francisco, San Francisco, CA, USA; Program in Craniofacial Biology and Department of Orofacial Sciences, University of California, San Francisco, San Francisco, CA, USA
| | - Hikaru Miyazaki
- Department of Pharmaceutical Chemistry, University of California, San Francisco, San Francisco, CA, USA; Program in Craniofacial Biology and Department of Orofacial Sciences, University of California, San Francisco, San Francisco, CA, USA
| | - Vasudha Srivastava
- Department of Pharmaceutical Chemistry, University of California, San Francisco, San Francisco, CA, USA
| | - Emilie Barruet
- Department of Pediatrics, Cedars-Sinai Guerin Children's, Los Angeles, CA, USA
| | - Christopher S McGinnis
- Department of Pharmaceutical Chemistry, University of California, San Francisco, San Francisco, CA, USA
| | - Ali Kalantari
- Department of Pharmaceutical Chemistry, University of California, San Francisco, San Francisco, CA, USA; Program in Craniofacial Biology and Department of Orofacial Sciences, University of California, San Francisco, San Francisco, CA, USA
| | - Jake Cornwall-Scoones
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, USA
| | - Dedeepya Vaka
- Department of Pediatrics, Cedars-Sinai Guerin Children's, Los Angeles, CA, USA
| | - Qin Zhu
- Department of Pharmaceutical Chemistry, University of California, San Francisco, San Francisco, CA, USA
| | - Hyunil Jo
- Department of Pharmaceutical Chemistry, University of California, San Francisco, San Francisco, CA, USA
| | - Roger Oria
- Center for Bioengineering and Tissue Regeneration, Department of Surgery, University of California, San Francisco, San Francisco, CA 94143, USA; Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, San Francisco, CA 94143, USA; Comprehensive Cancer Center, Helen Diller Family Cancer Research Center, University of California, San Francisco, San Francisco, CA 94143, USA; Department of Bioengineering and Therapeutic Sciences, Department of Radiation Oncology, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Valerie M Weaver
- Center for Bioengineering and Tissue Regeneration, Department of Surgery, University of California, San Francisco, San Francisco, CA 94143, USA; Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, University of California, San Francisco, San Francisco, CA 94143, USA; Comprehensive Cancer Center, Helen Diller Family Cancer Research Center, University of California, San Francisco, San Francisco, CA 94143, USA; Department of Bioengineering and Therapeutic Sciences, Department of Radiation Oncology, University of California, San Francisco, San Francisco, CA 94143, USA
| | - William F DeGrado
- Department of Pharmaceutical Chemistry, University of California, San Francisco, San Francisco, CA, USA
| | - Matt Thomson
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, USA
| | - Krishna Garikipati
- Departments of Mechanical Engineering, and Mathematics, University of Michigan, Ann Arbor, MI, USA
| | - Dario Boffelli
- Department of Pediatrics, Cedars-Sinai Guerin Children's, Los Angeles, CA, USA
| | - Ophir D Klein
- Program in Craniofacial Biology and Department of Orofacial Sciences, University of California, San Francisco, San Francisco, CA, USA; Department of Pediatrics, Cedars-Sinai Guerin Children's, Los Angeles, CA, USA.
| | - Zev J Gartner
- Department of Pharmaceutical Chemistry, University of California, San Francisco, San Francisco, CA, USA; Chan Zuckerberg Biohub, San Francisco, CA, USA.
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Adkins-Threats M, Arimura S, Huang YZ, Divenko M, To S, Mao H, Zeng Y, Hwang JY, Burclaff JR, Jain S, Mills JC. Metabolic regulator ERRγ governs gastric stem cell differentiation into acid-secreting parietal cells. Cell Stem Cell 2024; 31:886-903.e8. [PMID: 38733994 PMCID: PMC11162331 DOI: 10.1016/j.stem.2024.04.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 02/26/2024] [Accepted: 04/19/2024] [Indexed: 05/13/2024]
Abstract
Parietal cells (PCs) produce gastric acid to kill pathogens and aid digestion. Dysregulated PC census is common in disease, yet how PCs differentiate is unclear. Here, we identify the PC progenitors arising from isthmal stem cells, using mouse models and human gastric cells, and show that they preferentially express cell-metabolism regulator and orphan nuclear receptor Estrogen-related receptor gamma (Esrrg, encoding ERRγ). Esrrg expression facilitated the tracking of stepwise molecular, cellular, and ultrastructural stages of PC differentiation. EsrrgP2ACreERT2 lineage tracing revealed that Esrrg expression commits progenitors to differentiate into mature PCs. scRNA-seq indicated the earliest Esrrg+ PC progenitors preferentially express SMAD4 and SP1 transcriptional targets and the GTPases regulating acid-secretion signal transduction. As progenitors matured, ERRγ-dependent metabolic transcripts predominated. Organoid and mouse studies validated the requirement of ERRγ for PC differentiation. Our work chronicles stem cell differentiation along a single lineage in vivo and suggests ERRγ as a therapeutic target for PC-related disorders.
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Affiliation(s)
- Mahliyah Adkins-Threats
- Section of Gastroenterology, Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA; Division of Biomedical and Biological Sciences, Washington University, St. Louis, MO 63130, USA; Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Sumimasa Arimura
- Section of Gastroenterology, Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
| | - Yang-Zhe Huang
- Section of Gastroenterology, Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
| | - Margarita Divenko
- Section of Gastroenterology, Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
| | - Sarah To
- Section of Gastroenterology, Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
| | - Heather Mao
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Yongji Zeng
- Section of Gastroenterology, Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
| | - Jenie Y Hwang
- Section of Gastroenterology, Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA; Department of Pathology and Laboratory Medicine, University of Texas Health San Antonio, San Antonio, TX 78249, USA
| | - Joseph R Burclaff
- Joint Department of Biomedical Engineering, University of North Carolina and North Carolina State University, Chapel Hill, NC 27599, USA
| | - Shilpa Jain
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX 77030, USA
| | - Jason C Mills
- Section of Gastroenterology, Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA; Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX 77030, USA; Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA.
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31
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Zhu Y, Ackers-Johnson M, Shanmugam MK, Pakkiri LS, Drum CL, Yanpu C, Kim J, Paltzer WG, Mahmoud AI, Wen Tan WL, Lee MCJ, Jianming J, Luu DAT, Ng SL, Li PYQ, Anhui W, Rong Q, Ong GJX, Ng Yu T, Haigh JJ, Tiang Z, Richards AM, Foo R. Asparagine Synthetase Marks a Distinct Dependency Threshold for Cardiomyocyte Dedifferentiation. Circulation 2024; 149:1833-1851. [PMID: 38586957 PMCID: PMC11147732 DOI: 10.1161/circulationaha.123.063965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Accepted: 01/23/2024] [Indexed: 04/09/2024]
Abstract
BACKGROUND Adult mammalian cardiomyocytes have limited proliferative capacity, but in specifically induced contexts they traverse through cell-cycle reentry, offering the potential for heart regeneration. Endogenous cardiomyocyte proliferation is preceded by cardiomyocyte dedifferentiation (CMDD), wherein adult cardiomyocytes revert to a less matured state that is distinct from the classical myocardial fetal stress gene response associated with heart failure. However, very little is known about CMDD as a defined cardiomyocyte cell state in transition. METHODS Here, we leveraged 2 models of in vitro cultured adult mouse cardiomyocytes and in vivo adeno-associated virus serotype 9 cardiomyocyte-targeted delivery of reprogramming factors (Oct4, Sox2, Klf4, and Myc) in adult mice to study CMDD. We profiled their transcriptomes using RNA sequencing, in combination with multiple published data sets, with the aim of identifying a common denominator for tracking CMDD. RESULTS RNA sequencing and integrated analysis identified Asparagine Synthetase (Asns) as a unique molecular marker gene well correlated with CMDD, required for increased asparagine and also for distinct fluxes in other amino acids. Although Asns overexpression in Oct4, Sox2, Klf4, and Myc cardiomyocytes augmented hallmarks of CMDD, Asns deficiency led to defective regeneration in the neonatal mouse myocardial infarction model, increased cell death of cultured adult cardiomyocytes, and reduced cell cycle in Oct4, Sox2, Klf4, and Myc cardiomyocytes, at least in part through disrupting the mammalian target of rapamycin complex 1 pathway. CONCLUSIONS We discovered a novel gene Asns as both a molecular marker and an essential mediator, marking a distinct threshold that appears in common for at least 4 models of CMDD, and revealing an Asns/mammalian target of rapamycin complex 1 axis dependency for dedifferentiating cardiomyocytes. Further study will be needed to extrapolate and assess its relevance to other cell state transitions as well as in heart regeneration.
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Affiliation(s)
- Yike Zhu
- Cardiovascular Research Institute, Yong Loo Lin School of Medicine, National University of Singapore
- Cardiovascular Metabolic Disease Translational Research Programme, National University Health Systems, Singapore
| | - Matthew Ackers-Johnson
- Cardiovascular Research Institute, Yong Loo Lin School of Medicine, National University of Singapore
- Cardiovascular Metabolic Disease Translational Research Programme, National University Health Systems, Singapore
| | - Muthu K Shanmugam
- Cardiovascular Research Institute, Yong Loo Lin School of Medicine, National University of Singapore
- Cardiovascular Metabolic Disease Translational Research Programme, National University Health Systems, Singapore
| | - Leroy Sivappiragasam Pakkiri
- Cardiovascular Research Institute, Yong Loo Lin School of Medicine, National University of Singapore
- Cardiovascular Metabolic Disease Translational Research Programme, National University Health Systems, Singapore
| | - Chester Lee Drum
- Cardiovascular Research Institute, Yong Loo Lin School of Medicine, National University of Singapore
- Cardiovascular Metabolic Disease Translational Research Programme, National University Health Systems, Singapore
| | - Chen Yanpu
- Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
| | - Johnny Kim
- Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany
- German Centre for Cardiovascular Research (DZHK), Partner site Rhein/Main, Bad Nauheim, Germany
| | - Wyatt G. Paltzer
- Department of Cell and Regenerative Biology, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, USA
| | - Ahmed I. Mahmoud
- Department of Cell and Regenerative Biology, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, USA
| | - Wilson Lek Wen Tan
- Cardiovascular Research Institute, Yong Loo Lin School of Medicine, National University of Singapore
- Cardiovascular Metabolic Disease Translational Research Programme, National University Health Systems, Singapore
| | - Mick Chang Jie Lee
- Cardiovascular Research Institute, Yong Loo Lin School of Medicine, National University of Singapore
- Cardiovascular Metabolic Disease Translational Research Programme, National University Health Systems, Singapore
| | - Jiang Jianming
- Cardiovascular Research Institute, Yong Loo Lin School of Medicine, National University of Singapore
- Cardiovascular Metabolic Disease Translational Research Programme, National University Health Systems, Singapore
| | - Danh Anh Tuan Luu
- Cardiovascular Research Institute, Yong Loo Lin School of Medicine, National University of Singapore
- Cardiovascular Metabolic Disease Translational Research Programme, National University Health Systems, Singapore
| | - Shi Ling Ng
- Cardiovascular Research Institute, Yong Loo Lin School of Medicine, National University of Singapore
- Cardiovascular Metabolic Disease Translational Research Programme, National University Health Systems, Singapore
| | - Peter Yi Qing Li
- Cardiovascular Research Institute, Yong Loo Lin School of Medicine, National University of Singapore
- Cardiovascular Metabolic Disease Translational Research Programme, National University Health Systems, Singapore
| | - Wang Anhui
- Department of Pharmacology, School of Basic Medical Sciences, Peking University Health Science Centre, Peking University
- State Key Laboratory of Vascular Homeostasis and Remodelling, Peking University
| | - Qi Rong
- Department of Pharmacology, School of Basic Medical Sciences, Peking University Health Science Centre, Peking University
- State Key Laboratory of Vascular Homeostasis and Remodelling, Peking University
| | - Gabriel Jing Xiang Ong
- Cardiovascular Research Institute, Yong Loo Lin School of Medicine, National University of Singapore
- Cardiovascular Metabolic Disease Translational Research Programme, National University Health Systems, Singapore
| | - Timothy Ng Yu
- Cardiovascular Research Institute, Yong Loo Lin School of Medicine, National University of Singapore
- Cardiovascular Metabolic Disease Translational Research Programme, National University Health Systems, Singapore
| | - Jody J. Haigh
- CancerCare Manitoba Research Institute, Department of Pharmacology and Therapeutics, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
- VIB, Flanders Institute for Biotechnology, Ghent University, Ghent, Belgium
| | - Zenia Tiang
- Cardiovascular Research Institute, Yong Loo Lin School of Medicine, National University of Singapore
- Cardiovascular Metabolic Disease Translational Research Programme, National University Health Systems, Singapore
| | - A. Mark Richards
- Cardiovascular Research Institute, Yong Loo Lin School of Medicine, National University of Singapore
- Cardiovascular Metabolic Disease Translational Research Programme, National University Health Systems, Singapore
- Christchurch Heart Institute, University of Otago, New Zealand
| | - Roger Foo
- Cardiovascular Research Institute, Yong Loo Lin School of Medicine, National University of Singapore
- Cardiovascular Metabolic Disease Translational Research Programme, National University Health Systems, Singapore
- Institute of Molecular and Cell Biology, A*STAR, Singapore
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32
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Collins BC, Shapiro JB, Scheib MM, Musci RV, Verma M, Kardon G. Three-dimensional imaging studies in mice identify cellular dynamics of skeletal muscle regeneration. Dev Cell 2024; 59:1457-1474.e5. [PMID: 38569550 PMCID: PMC11153043 DOI: 10.1016/j.devcel.2024.03.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 12/06/2023] [Accepted: 03/08/2024] [Indexed: 04/05/2024]
Abstract
The function of many organs, including skeletal muscle, depends on their three-dimensional structure. Muscle regeneration therefore requires not only reestablishment of myofibers but also restoration of tissue architecture. Resident muscle stem cells (SCs) are essential for regeneration, but how SCs regenerate muscle architecture is largely unknown. We address this problem using genetic labeling of mouse SCs and whole-mount imaging to reconstruct, in three dimensions, muscle regeneration. Unexpectedly, we found that myofibers form via two distinct phases of fusion and the residual basement membrane of necrotic myofibers is critical for promoting fusion and orienting regenerated myofibers. Furthermore, the centralized myonuclei characteristic of regenerated myofibers are associated with myofibrillogenesis and endure months post injury. Finally, we elucidate two cellular mechanisms for the formation of branched myofibers, a pathology characteristic of diseased muscle. We provide a synthesis of the cellular events of regeneration and show that these differ from those used during development.
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Affiliation(s)
- Brittany C Collins
- Department of Human Genetics, University of Utah, Salt Lake City, UT, USA
| | - Jacob B Shapiro
- Department of Human Genetics, University of Utah, Salt Lake City, UT, USA
| | - Mya M Scheib
- Department of Human Genetics, University of Utah, Salt Lake City, UT, USA
| | - Robert V Musci
- Department of Human Genetics, University of Utah, Salt Lake City, UT, USA
| | - Mayank Verma
- Department of Pediatrics, Division of Neurology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Gabrielle Kardon
- Department of Human Genetics, University of Utah, Salt Lake City, UT, USA.
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33
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Jerome AD, Sas AR, Wang Y, Hammond LA, Wen J, Atkinson JR, Webb A, Liu T, Segal BM. Cytokine polarized, alternatively activated bone marrow neutrophils drive axon regeneration. Nat Immunol 2024; 25:957-968. [PMID: 38811815 DOI: 10.1038/s41590-024-01836-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 04/11/2024] [Indexed: 05/31/2024]
Abstract
The adult central nervous system (CNS) possesses a limited capacity for self-repair. Severed CNS axons typically fail to regrow. There is an unmet need for treatments designed to enhance neuronal viability, facilitate axon regeneration and ultimately restore lost neurological functions to individuals affected by traumatic CNS injury, multiple sclerosis, stroke and other neurological disorders. Here we demonstrate that both mouse and human bone marrow neutrophils, when polarized with a combination of recombinant interleukin-4 (IL-4) and granulocyte colony-stimulating factor (G-CSF), upregulate alternative activation markers and produce an array of growth factors, thereby gaining the capacity to promote neurite outgrowth. Moreover, adoptive transfer of IL-4/G-CSF-polarized bone marrow neutrophils into experimental models of CNS injury triggered substantial axon regeneration within the optic nerve and spinal cord. These findings have far-reaching implications for the future development of autologous myeloid cell-based therapies that may bring us closer to effective solutions for reversing CNS damage.
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Affiliation(s)
- Andrew D Jerome
- Department of Neurology, The Ohio State University Wexner Medical Center, Columbus, OH, USA
- The Neuroscience Research Institute, The Ohio State University, Columbus, OH, USA
| | - Andrew R Sas
- Department of Neurology, The Ohio State University Wexner Medical Center, Columbus, OH, USA
- The Neuroscience Research Institute, The Ohio State University, Columbus, OH, USA
| | - Yan Wang
- Department of Neurology, The Ohio State University Wexner Medical Center, Columbus, OH, USA
- The Neuroscience Research Institute, The Ohio State University, Columbus, OH, USA
| | - Luke A Hammond
- Department of Neurology, The Ohio State University Wexner Medical Center, Columbus, OH, USA
- The Neuroscience Research Institute, The Ohio State University, Columbus, OH, USA
| | - Jing Wen
- The James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | - Jeffrey R Atkinson
- Department of Neurology, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Amy Webb
- The James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
- Department of Biomedical Informatics, The Ohio State University, Columbus, OH, USA
| | - Tom Liu
- Department of Neurology, The Ohio State University Wexner Medical Center, Columbus, OH, USA
- The Neuroscience Research Institute, The Ohio State University, Columbus, OH, USA
| | - Benjamin M Segal
- Department of Neurology, The Ohio State University Wexner Medical Center, Columbus, OH, USA.
- The Neuroscience Research Institute, The Ohio State University, Columbus, OH, USA.
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34
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Carabaña C, Sun W, Veludo Ramos C, Huyghe M, Perkins M, Maillot A, Journot R, Hartani F, Faraldo MM, Lloyd-Lewis B, Fre S. Spatially distinct epithelial and mesenchymal cell subsets along progressive lineage restriction in the branching embryonic mammary gland. EMBO J 2024; 43:2308-2336. [PMID: 38760574 PMCID: PMC11183262 DOI: 10.1038/s44318-024-00115-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 04/06/2024] [Accepted: 04/17/2024] [Indexed: 05/19/2024] Open
Abstract
How cells coordinate morphogenetic cues and fate specification during development remains a fundamental question in organogenesis. The mammary gland arises from multipotent stem cells (MaSCs), which are progressively replaced by unipotent progenitors by birth. However, the lack of specific markers for early fate specification has prevented the delineation of the features and spatial localization of MaSC-derived lineage-committed progenitors. Here, using single-cell RNA sequencing from E13.5 to birth, we produced an atlas of matched mouse mammary epithelium and mesenchyme and reconstructed the differentiation trajectories of MaSCs toward basal and luminal fate. We show that murine MaSCs exhibit lineage commitment just prior to the first sprouting events of mammary branching morphogenesis at E15.5. We identify early molecular markers for committed and multipotent MaSCs and define their spatial distribution within the developing tissue. Furthermore, we show that the mammary embryonic mesenchyme is composed of two spatially restricted cell populations, and that dermal mesenchyme-produced FGF10 is essential for embryonic mammary branching morphogenesis. Altogether, our data elucidate the spatiotemporal signals underlying lineage specification of multipotent MaSCs, and uncover the signals from mesenchymal cells that guide mammary branching morphogenesis.
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Affiliation(s)
- Claudia Carabaña
- Institut Curie, Laboratory of Genetics and Developmental Biology, PSL Research University, INSERM U934, CNRS UMR3215, 75248, Paris, France
- Sorbonne Université, Collège Doctoral, Paris, France
- Department of Health Sciences, Faculty of Biomedical and Health Sciences, Universidad Europea de Madrid, C/Tajo, s/n, Villaviciosa de Odón, 28670, Madrid, Spain
| | - Wenjie Sun
- Institut Curie, Laboratory of Genetics and Developmental Biology, PSL Research University, INSERM U934, CNRS UMR3215, 75248, Paris, France
| | - Camila Veludo Ramos
- Institut Curie, Laboratory of Genetics and Developmental Biology, PSL Research University, INSERM U934, CNRS UMR3215, 75248, Paris, France
| | - Mathilde Huyghe
- Institut Curie, Laboratory of Genetics and Developmental Biology, PSL Research University, INSERM U934, CNRS UMR3215, 75248, Paris, France
| | - Meghan Perkins
- Institut Curie, Laboratory of Genetics and Developmental Biology, PSL Research University, INSERM U934, CNRS UMR3215, 75248, Paris, France
| | - Aurélien Maillot
- Institut Curie, Laboratory of Genetics and Developmental Biology, PSL Research University, INSERM U934, CNRS UMR3215, 75248, Paris, France
| | - Robin Journot
- Institut Curie, Laboratory of Genetics and Developmental Biology, PSL Research University, INSERM U934, CNRS UMR3215, 75248, Paris, France
| | - Fatima Hartani
- Institut Curie, Laboratory of Genetics and Developmental Biology, PSL Research University, INSERM U934, CNRS UMR3215, 75248, Paris, France
| | - Marisa M Faraldo
- Institut Curie, Laboratory of Genetics and Developmental Biology, PSL Research University, INSERM U934, CNRS UMR3215, 75248, Paris, France
| | - Bethan Lloyd-Lewis
- School of Cellular and Molecular Medicine, University of Bristol, Biomedical Sciences Building, Bristol, BS8 1TD, UK.
| | - Silvia Fre
- Institut Curie, Laboratory of Genetics and Developmental Biology, PSL Research University, INSERM U934, CNRS UMR3215, 75248, Paris, France.
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35
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Heß L, Aliar K, Grünwald BT, Griffin R, Lozan A, Knöller M, Khokha R, Brummer T, Reinheckel T. Dipeptidyl-peptidase 9 regulates the dynamics of tumorigenesis and metastasis in breast cancer. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167133. [PMID: 38531482 DOI: 10.1016/j.bbadis.2024.167133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 02/27/2024] [Accepted: 03/19/2024] [Indexed: 03/28/2024]
Abstract
The cytosolic dipeptidyl-aminopeptidase 9 (DPP9) cleaves protein N-termini post-proline or -alanine. Our analysis of DPP9 mRNA expression from the TCGA 'breast cancer' data set revealed that low/intermediate DPP9 levels are associated with poor overall survival of breast cancer patients. To unravel the impact of DPP9 on breast cancer development and progression, the transgenic MMTV-PyMT mouse model of metastasizing breast cancer was used. In addition, tissue- and time-controlled genetic deletion of DPP9 by the Cre-loxP recombination system was done. Despite a delay of tumor onset, a higher number of lung metastases were measured in DPP9-deficient mice compared to controls. In human mammary epithelial cells with oncogenic RAS pathway activation, DPP9 deficiency delayed tumorigenic transformation and accelerated TGF-β1 induced epithelial-to-mesenchymal transition (EMT) of spheroids. For further analysis of the mechanism, primary breast tumor cells were isolated from the MMTV-PyMT model. DPP9 deficiency in these cells caused cancer cell migration and invasion accompanied by EMT. In absence of DPP9, the EMT transcription factor ZEB1 was stabilized due to insufficient degradation by the proteasome. In summary, low expression of DPP9 appears to decelerate mammary tumorigenesis but favors EMT and metastasis, which establishes DPP9 as a novel dynamic regulator of breast cancer initiation and progression.
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Affiliation(s)
- Lisa Heß
- Institute of Molecular Medicine and Cell Research, Faculty of Medicine, University of Freiburg, 79104 Freiburg, Germany; Faculty of Biology, University of Freiburg, 79104 Freiburg, Germany
| | - Kazeera Aliar
- Princess Margaret Cancer Centre, University Health Network, ON M5G 2G4, Toronto, Canada
| | - Barbara T Grünwald
- Princess Margaret Cancer Centre, University Health Network, ON M5G 2G4, Toronto, Canada
| | - Ricarda Griffin
- Institute of Molecular Medicine and Cell Research, Faculty of Medicine, University of Freiburg, 79104 Freiburg, Germany
| | - Alina Lozan
- Institute of Molecular Medicine and Cell Research, Faculty of Medicine, University of Freiburg, 79104 Freiburg, Germany; Faculty of Biology, University of Freiburg, 79104 Freiburg, Germany; German Cancer Consortium (DKTK), partner site Freiburg, 79104 Freiburg, Germany; German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Mariel Knöller
- Institute of Molecular Medicine and Cell Research, Faculty of Medicine, University of Freiburg, 79104 Freiburg, Germany
| | - Rama Khokha
- Princess Margaret Cancer Centre, University Health Network, ON M5G 2G4, Toronto, Canada; Department of Medical Biophysics, University of Toronto, ON M5G 2G4, Toronto, Canada
| | - Tilman Brummer
- Institute of Molecular Medicine and Cell Research, Faculty of Medicine, University of Freiburg, 79104 Freiburg, Germany; German Cancer Consortium (DKTK), partner site Freiburg, 79104 Freiburg, Germany; German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany; Centre for Biological Signalling Studies BIOSS, University of Freiburg, 79104 Freiburg, Germany; Comprehensive Cancer Center Freiburg (CCCF), University Medical Center, University of Freiburg, 79106 Freiburg, Germany
| | - Thomas Reinheckel
- Institute of Molecular Medicine and Cell Research, Faculty of Medicine, University of Freiburg, 79104 Freiburg, Germany; German Cancer Consortium (DKTK), partner site Freiburg, 79104 Freiburg, Germany; German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany; Centre for Biological Signalling Studies BIOSS, University of Freiburg, 79104 Freiburg, Germany; Comprehensive Cancer Center Freiburg (CCCF), University Medical Center, University of Freiburg, 79106 Freiburg, Germany.
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36
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Subramani PG, Fraszczak J, Helness A, Estall JL, Möröy T, Di Noia JM. Conserved role of hnRNPL in alternative splicing of epigenetic modifiers enables B cell activation. EMBO Rep 2024; 25:2662-2697. [PMID: 38744970 PMCID: PMC11169469 DOI: 10.1038/s44319-024-00152-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 04/15/2024] [Accepted: 04/24/2024] [Indexed: 05/16/2024] Open
Abstract
The multifunctional RNA-binding protein hnRNPL is implicated in antibody class switching but its broader function in B cells is unknown. Here, we show that hnRNPL is essential for B cell activation, germinal center formation, and antibody responses. Upon activation, hnRNPL-deficient B cells show proliferation defects and increased apoptosis. Comparative analysis of RNA-seq data from activated B cells and another eight hnRNPL-depleted cell types reveals common effects on MYC and E2F transcriptional programs required for proliferation. Notably, while individual gene expression changes are cell type specific, several alternative splicing events affecting histone modifiers like KDM6A and SIRT1, are conserved across cell types. Moreover, hnRNPL-deficient B cells show global changes in H3K27me3 and H3K9ac. Epigenetic dysregulation after hnRNPL loss could underlie differential gene expression and upregulation of lncRNAs, and explain common and cell type-specific phenotypes, such as dysfunctional mitochondria and ROS overproduction in mouse B cells. Thus, hnRNPL is essential for the resting-to-activated B cell transition by regulating transcriptional programs and metabolism, at least in part through the alternative splicing of several histone modifiers.
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Affiliation(s)
- Poorani Ganesh Subramani
- Institut de Recherches Cliniques de Montréal, 110 avenue des Pins Ouest, Montréal, QC, H2W 1R7, Canada
- Department of Medicine, Division of Experimental Medicine, McGill University, 1001 Boulevard Decarie, Montreal, QC, H4A 3J1, Canada
| | - Jennifer Fraszczak
- Institut de Recherches Cliniques de Montréal, 110 avenue des Pins Ouest, Montréal, QC, H2W 1R7, Canada
| | - Anne Helness
- Institut de Recherches Cliniques de Montréal, 110 avenue des Pins Ouest, Montréal, QC, H2W 1R7, Canada
| | - Jennifer L Estall
- Institut de Recherches Cliniques de Montréal, 110 avenue des Pins Ouest, Montréal, QC, H2W 1R7, Canada
- Department of Medicine, Division of Experimental Medicine, McGill University, 1001 Boulevard Decarie, Montreal, QC, H4A 3J1, Canada
- Molecular Biology Programs, Université de Montréal, C.P. 6128, succ. Centre-ville, Montréal, QC, H3C 3J7, Canada
- Department of Medicine, Université de Montréal, C.P. 6128, succ. Centre-ville, Montréal, QC, H3C 3J7, Canada
| | - Tarik Möröy
- Institut de Recherches Cliniques de Montréal, 110 avenue des Pins Ouest, Montréal, QC, H2W 1R7, Canada
- Department of Medicine, Division of Experimental Medicine, McGill University, 1001 Boulevard Decarie, Montreal, QC, H4A 3J1, Canada
- Molecular Biology Programs, Université de Montréal, C.P. 6128, succ. Centre-ville, Montréal, QC, H3C 3J7, Canada
- Département de microbiologie, infectiologie et immunologie, Université de Montréal, 2900 Boul Edouard-Montpetit, Montréal, QC, H3T 1J4, Canada
| | - Javier M Di Noia
- Institut de Recherches Cliniques de Montréal, 110 avenue des Pins Ouest, Montréal, QC, H2W 1R7, Canada.
- Department of Medicine, Division of Experimental Medicine, McGill University, 1001 Boulevard Decarie, Montreal, QC, H4A 3J1, Canada.
- Molecular Biology Programs, Université de Montréal, C.P. 6128, succ. Centre-ville, Montréal, QC, H3C 3J7, Canada.
- Department of Medicine, Université de Montréal, C.P. 6128, succ. Centre-ville, Montréal, QC, H3C 3J7, Canada.
- Département de microbiologie, infectiologie et immunologie, Université de Montréal, 2900 Boul Edouard-Montpetit, Montréal, QC, H3T 1J4, Canada.
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Matchett KP, Wilson-Kanamori JR, Portman JR, Kapourani CA, Fercoq F, May S, Zajdel E, Beltran M, Sutherland EF, Mackey JBG, Brice M, Wilson GC, Wallace SJ, Kitto L, Younger NT, Dobie R, Mole DJ, Oniscu GC, Wigmore SJ, Ramachandran P, Vallejos CA, Carragher NO, Saeidinejad MM, Quaglia A, Jalan R, Simpson KJ, Kendall TJ, Rule JA, Lee WM, Hoare M, Weston CJ, Marioni JC, Teichmann SA, Bird TG, Carlin LM, Henderson NC. Multimodal decoding of human liver regeneration. Nature 2024; 630:158-165. [PMID: 38693268 PMCID: PMC11153152 DOI: 10.1038/s41586-024-07376-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 04/02/2024] [Indexed: 05/03/2024]
Abstract
The liver has a unique ability to regenerate1,2; however, in the setting of acute liver failure (ALF), this regenerative capacity is often overwhelmed, leaving emergency liver transplantation as the only curative option3-5. Here, to advance understanding of human liver regeneration, we use paired single-nucleus RNA sequencing combined with spatial profiling of healthy and ALF explant human livers to generate a single-cell, pan-lineage atlas of human liver regeneration. We uncover a novel ANXA2+ migratory hepatocyte subpopulation, which emerges during human liver regeneration, and a corollary subpopulation in a mouse model of acetaminophen (APAP)-induced liver regeneration. Interrogation of necrotic wound closure and hepatocyte proliferation across multiple timepoints following APAP-induced liver injury in mice demonstrates that wound closure precedes hepatocyte proliferation. Four-dimensional intravital imaging of APAP-induced mouse liver injury identifies motile hepatocytes at the edge of the necrotic area, enabling collective migration of the hepatocyte sheet to effect wound closure. Depletion of hepatocyte ANXA2 reduces hepatocyte growth factor-induced human and mouse hepatocyte migration in vitro, and abrogates necrotic wound closure following APAP-induced mouse liver injury. Together, our work dissects unanticipated aspects of liver regeneration, demonstrating an uncoupling of wound closure and hepatocyte proliferation and uncovering a novel migratory hepatocyte subpopulation that mediates wound closure following liver injury. Therapies designed to promote rapid reconstitution of normal hepatic microarchitecture and reparation of the gut-liver barrier may advance new areas of therapeutic discovery in regenerative medicine.
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Affiliation(s)
- K P Matchett
- Centre for Inflammation Research, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh, UK
| | - J R Wilson-Kanamori
- Centre for Inflammation Research, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh, UK
| | - J R Portman
- Centre for Inflammation Research, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh, UK
| | - C A Kapourani
- Centre for Inflammation Research, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh, UK
- MRC Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
- School of Informatics, University of Edinburgh, Edinburgh, UK
| | - F Fercoq
- Cancer Research UK Beatson Institute, Glasgow, UK
| | - S May
- Cancer Research UK Beatson Institute, Glasgow, UK
| | - E Zajdel
- Centre for Inflammation Research, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh, UK
| | - M Beltran
- Centre for Inflammation Research, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh, UK
| | - E F Sutherland
- Centre for Inflammation Research, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh, UK
| | - J B G Mackey
- Cancer Research UK Beatson Institute, Glasgow, UK
| | - M Brice
- Centre for Inflammation Research, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh, UK
| | - G C Wilson
- Centre for Inflammation Research, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh, UK
| | - S J Wallace
- Centre for Inflammation Research, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh, UK
| | - L Kitto
- Centre for Inflammation Research, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh, UK
| | - N T Younger
- Centre for Inflammation Research, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh, UK
| | - R Dobie
- Centre for Inflammation Research, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh, UK
| | - D J Mole
- Centre for Inflammation Research, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh, UK
- University Department of Clinical Surgery, University of Edinburgh, Edinburgh, UK
| | - G C Oniscu
- Edinburgh Transplant Centre, Royal Infirmary of Edinburgh, Edinburgh, UK
- Division of Transplant Surgery, CLINTEC, Karolinska Institutet, Stockholm, Sweden
| | - S J Wigmore
- Centre for Inflammation Research, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh, UK
- University Department of Clinical Surgery, University of Edinburgh, Edinburgh, UK
| | - P Ramachandran
- Centre for Inflammation Research, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh, UK
| | - C A Vallejos
- MRC Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
- The Alan Turing Institute, London, UK
| | - N O Carragher
- Cancer Research UK Edinburgh Centre, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK
| | - M M Saeidinejad
- Institute for Liver and Digestive Health, University College London, London, UK
| | - A Quaglia
- Department of Cellular Pathology, Royal Free London NHS Foundation Trust, London, UK
- UCL Cancer Institute, University College London, London, UK
| | - R Jalan
- Institute for Liver and Digestive Health, University College London, London, UK
- European Foundation for the Study of Chronic Liver Failure, Barcelona, Spain
| | - K J Simpson
- Department of Hepatology, University of Edinburgh and Scottish Liver Transplant Unit, Royal Infirmary of Edinburgh, Edinburgh, UK
| | - T J Kendall
- Centre for Inflammation Research, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh, UK
| | - J A Rule
- Department of Internal Medicine, University of Texas, Southwestern Medical Center, Dallas, TX, USA
| | - W M Lee
- Department of Internal Medicine, University of Texas, Southwestern Medical Center, Dallas, TX, USA
| | - M Hoare
- Early Cancer Institute, University of Cambridge, Cambridge, UK
- Department of Medicine, University of Cambridge, Cambridge, UK
| | - C J Weston
- NIHR Birmingham Biomedical Research Centre, University Hospitals Birmingham NHS Foundation Trust and University of Birmingham, Birmingham, UK
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, UK
| | - J C Marioni
- Cancer Research UK Cambridge Institute, University of Cambridge, Cambridge, UK
- European Molecular Biology Laboratory, European Bioinformatics Institute, Cambridge, UK
- Wellcome Genome Campus, Wellcome Sanger Institute, Cambridge, UK
| | - S A Teichmann
- European Molecular Biology Laboratory, European Bioinformatics Institute, Cambridge, UK
- Wellcome Genome Campus, Wellcome Sanger Institute, Cambridge, UK
- Department of Physics, Cavendish Laboratory, Cambridge, UK
| | - T G Bird
- Centre for Inflammation Research, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh, UK
- Cancer Research UK Beatson Institute, Glasgow, UK
| | - L M Carlin
- Cancer Research UK Beatson Institute, Glasgow, UK
- School of Cancer Sciences, University of Glasgow, Glasgow, UK
| | - N C Henderson
- Centre for Inflammation Research, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh, UK.
- MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK.
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38
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Kuriki M, Korb A, Comai G, Tajbakhsh S. Interplay between Pitx2 and Pax7 temporally governs specification of extraocular muscle stem cells. PLoS Genet 2024; 20:e1010935. [PMID: 38875306 PMCID: PMC11178213 DOI: 10.1371/journal.pgen.1010935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 03/05/2024] [Indexed: 06/16/2024] Open
Abstract
Gene regulatory networks that act upstream of skeletal muscle fate determinants are distinct in different anatomical locations. Despite recent efforts, a clear understanding of the cascade of events underlying the emergence and maintenance of the stem cell pool in specific muscle groups remains unresolved and debated. Here, we invalidated Pitx2 with multiple Cre-driver mice prenatally, postnatally, and during lineage progression. We showed that this gene becomes progressively dispensable for specification and maintenance of the muscle stem (MuSC) cell pool in extraocular muscles (EOMs) despite being, together with Myf5, a major upstream regulator during early development. Moreover, constitutive inactivation of Pax7 postnatally led to a greater loss of MuSCs in the EOMs compared to the limb. Thus, we propose a relay between Pitx2, Myf5 and Pax7 for EOM stem cell maintenance. We demonstrate also that MuSCs in the EOMs adopt a quiescent state earlier that those in limb muscles and do not spontaneously proliferate in the adult, yet EOMs have a significantly higher content of Pax7+ MuSCs per area pre- and post-natally. Finally, while limb MuSCs proliferate in the mdx mouse model for Duchenne muscular dystrophy, significantly less MuSCs were present in the EOMs of the mdx mouse model compared to controls, and they were not proliferative. Overall, our study provides a comprehensive in vivo characterisation of MuSC heterogeneity along the body axis and brings further insights into the unusual sparing of EOMs during muscular dystrophy.
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Affiliation(s)
- Mao Kuriki
- Institut Pasteur, Université Paris Cité, CNRS UMR 3738, Stem Cells & Development Unit, Institut Pasteur, Paris, France
| | - Amaury Korb
- Institut Pasteur, Université Paris Cité, CNRS UMR 3738, Stem Cells & Development Unit, Institut Pasteur, Paris, France
| | - Glenda Comai
- Institut Pasteur, Université Paris Cité, CNRS UMR 3738, Stem Cells & Development Unit, Institut Pasteur, Paris, France
| | - Shahragim Tajbakhsh
- Institut Pasteur, Université Paris Cité, CNRS UMR 3738, Stem Cells & Development Unit, Institut Pasteur, Paris, France
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39
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Gao Z, Santos RB, Rupert J, Van Drunen R, Yu Y, Eckel-Mahan K, Kolonin MG. Endothelial-specific telomerase inactivation causes telomere-independent cell senescence and multi-organ dysfunction characteristic of aging. Aging Cell 2024; 23:e14138. [PMID: 38475941 DOI: 10.1111/acel.14138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 01/31/2024] [Accepted: 02/20/2024] [Indexed: 03/14/2024] Open
Abstract
It has remained unclear how aging of endothelial cells (EC) contributes to pathophysiology of individual organs. Cell senescence results in part from inactivation of telomerase (TERT). Here, we analyzed mice with Tert knockout specifically in EC. Tert loss in EC induced transcriptional changes indicative of senescence and tissue hypoxia in EC and in other cells. We demonstrate that EC-Tert-KO mice have leaky blood vessels. The blood-brain barrier of EC-Tert-KO mice is compromised, and their cognitive function is impaired. EC-Tert-KO mice display reduced muscle endurance and decreased expression of enzymes responsible for oxidative metabolism. Our data indicate that Tert-KO EC have reduced mitochondrial content and function, which results in increased dependence on glycolysis. Consistent with this, EC-Tert-KO mice have metabolism changes indicative of increased glucose utilization. In EC-Tert-KO mice, expedited telomere attrition is observed for EC of adipose tissue (AT), while brain and skeletal muscle EC have normal telomere length but still display features of senescence. Our data indicate that the loss of Tert causes EC senescence in part through a telomere length-independent mechanism undermining mitochondrial function. We conclude that EC-Tert-KO mice is a model of expedited vascular senescence recapitulating the hallmarks aging, which can be useful for developing revitalization therapies.
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Affiliation(s)
- Zhanguo Gao
- The Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center, Houston, Texas, USA
| | - Rafael Bravo Santos
- The Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center, Houston, Texas, USA
| | - Joseph Rupert
- The Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center, Houston, Texas, USA
| | - Rachel Van Drunen
- The Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center, Houston, Texas, USA
| | - Yongmei Yu
- The Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center, Houston, Texas, USA
| | - Kristin Eckel-Mahan
- The Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center, Houston, Texas, USA
| | - Mikhail G Kolonin
- The Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center, Houston, Texas, USA
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40
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Du W, Verma A, Ye Q, Du W, Lin S, Yamanaka A, Klein OD, Hu JK. Myosin II mediates Shh signals to shape dental epithelia via control of cell adhesion and movement. PLoS Genet 2024; 20:e1011326. [PMID: 38857279 PMCID: PMC11192418 DOI: 10.1371/journal.pgen.1011326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 06/21/2024] [Accepted: 05/29/2024] [Indexed: 06/12/2024] Open
Abstract
The development of ectodermal organs begins with the formation of a stratified epithelial placode that progressively invaginates into the underlying mesenchyme as the organ takes its shape. Signaling by secreted molecules is critical for epithelial morphogenesis, but how that information leads to cell rearrangement and tissue shape changes remains an open question. Using the mouse dentition as a model, we first establish that non-muscle myosin II is essential for dental epithelial invagination and show that it functions by promoting cell-cell adhesion and persistent convergent cell movements in the suprabasal layer. Shh signaling controls these processes by inducing myosin II activation via AKT. Pharmacological induction of AKT and myosin II can also rescue defects caused by the inhibition of Shh. Together, our results support a model in which the Shh signal is transmitted through myosin II to power effective cellular rearrangement for proper dental epithelial invagination.
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Affiliation(s)
- Wei Du
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
- School of Dentistry, University of California Los Angeles, Los Angeles, California, United States of America
| | - Adya Verma
- Department of Orofacial Sciences, University of California San Francisco, San Francisco, California, United States of America
| | - Qianlin Ye
- School of Dentistry, University of California Los Angeles, Los Angeles, California, United States of America
| | - Wen Du
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Sandy Lin
- School of Dentistry, University of California Los Angeles, Los Angeles, California, United States of America
| | - Atsushi Yamanaka
- Department of Oral Anatomy and Cell Biology, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima, Japan
| | - Ophir D. Klein
- Department of Orofacial Sciences, University of California San Francisco, San Francisco, California, United States of America
- Department of Pediatrics, Cedars-Sinai Medical Center, Los Angeles, California, United States of America
| | - Jimmy K. Hu
- School of Dentistry, University of California Los Angeles, Los Angeles, California, United States of America
- Molecular Biology Institute, University of California Los Angeles, Los Angeles, California, United States of America
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41
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Yadav D, Conner JA, Wang Y, Saunders TL, Ubogu EE. A novel inducible von Willebrand Factor Cre recombinase mouse strain to study microvascular endothelial cell-specific biological processes in vivo. Vascul Pharmacol 2024; 155:107369. [PMID: 38554988 DOI: 10.1016/j.vph.2024.107369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 03/17/2024] [Accepted: 03/27/2024] [Indexed: 04/02/2024]
Abstract
Mouse models are invaluable to understanding fundamental mechanisms in vascular biology during development, in health and different disease states. Several constitutive or inducible models that selectively knockout or knock in genes in vascular endothelial cells exist; however, functional and phenotypic differences exist between microvascular and macrovascular endothelial cells in different organs. In order to study microvascular endothelial cell-specific biological processes, we developed a Tamoxifen-inducible von Willebrand Factor (vWF) Cre recombinase mouse in the SJL background. The transgene consists of the human vWF promoter with the microvascular endothelial cell-selective 734 base pair sequence to drive Cre recombinase fused to a mutant estrogen ligand-binding domain [ERT2] that requires Tamoxifen for activity (CreERT2) followed by a polyadenylation (polyA) signal. We initially observed Tamoxifen-inducible restricted bone marrow megakaryocyte and sciatic nerve microvascular endothelial cell Cre recombinase expression in offspring of a mixed strain hemizygous C57BL/6-SJL founder mouse bred with mT/mG mice, with >90% bone marrow megakaryocyte expression efficiency. Founder mouse offspring were backcrossed to the SJL background by speed congenics, and intercrossed for >10 generations to develop hemizygous Tamoxifen-inducible vWF Cre recombinase (vWF-iCre/+) SJL mice with stable transgene insertion in chromosome 1. Microvascular endothelial cell-specific Cre recombinase expression occurred in the sciatic nerves, brains, spleens, kidneys and gastrocnemius muscles of adult vWF-iCre/+ SJL mice bred with Ai14 mice, with retained low level bone marrow and splenic megakaryocyte expression. This novel mouse strain would support hypothesis-driven mechanistic studies to decipher the role(s) of specific genes transcribed by microvascular endothelial cells during development, as well as in physiologic and pathophysiologic states in an organ- and time-dependent manner.
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Affiliation(s)
- Dinesh Yadav
- Neuromuscular Immunopathology Research Laboratory, Division of Neuromuscular Disease, Department of Neurology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Jeremy A Conner
- Neuromuscular Immunopathology Research Laboratory, Division of Neuromuscular Disease, Department of Neurology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Yimin Wang
- Neuromuscular Immunopathology Research Laboratory, Division of Neuromuscular Disease, Department of Neurology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Thomas L Saunders
- Transgenic Animal Model Core, University of Michigan, Ann Arbor, MI, USA
| | - Eroboghene E Ubogu
- Neuromuscular Immunopathology Research Laboratory, Division of Neuromuscular Disease, Department of Neurology, University of Alabama at Birmingham, Birmingham, AL, USA.
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Jones Lipinski RA, Stancill JS, Nuñez R, Wynia-Smith SL, Sprague DJ, Nord JA, Bird A, Corbett JA, Smith BC. Zinc-chelating BET bromodomain inhibitors equally target islet endocrine cell types. Am J Physiol Regul Integr Comp Physiol 2024; 326:R515-R527. [PMID: 38618911 DOI: 10.1152/ajpregu.00259.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 03/19/2024] [Accepted: 04/07/2024] [Indexed: 04/16/2024]
Abstract
Inhibition of the bromodomain and extraterminal domain (BET) protein family is a potential strategy to prevent and treat diabetes; however, the clinical use of BET bromodomain inhibitors (BETis) is associated with adverse effects. Here, we explore a strategy for targeting BETis to β cells by exploiting the high-zinc (Zn2+) concentration in β cells relative to other cell types. We report the synthesis of a novel, Zn2+-chelating derivative of the pan-BETi (+)-JQ1, (+)-JQ1-DPA, in which (+)-JQ1 was conjugated to dipicolyl amine (DPA). As controls, we synthesized (+)-JQ1-DBA, a non-Zn2+-chelating derivative, and (-)-JQ1-DPA, an inactive enantiomer that chelates Zn2+. Molecular modeling and biophysical assays showed that (+)-JQ1-DPA and (+)-JQ1-DBA retain potent binding to BET bromodomains in vitro. Cellular assays demonstrated (+)-JQ1-DPA attenuated NF-ĸB target gene expression in β cells stimulated with the proinflammatory cytokine interleukin 1β. To assess β-cell selectivity, we isolated islets from a mouse model that expresses green fluorescent protein in insulin-positive β cells and mTomato in insulin-negative cells (non-β cells). Surprisingly, Zn2+ chelation did not confer β-cell selectivity as (+)-JQ1-DPA was equally effective in both β and α cells; however, (+)-JQ1-DPA was less effective in macrophages, a nonendocrine islet cell type. Intriguingly, the non-Zn2+-chelating derivative (+)-JQ1-DBA displayed the opposite selectivity, with greater effect in macrophages compared with (+)-JQ1-DPA, suggesting potential as a macrophage-targeting molecule. These findings suggest that Zn2+-chelating small molecules confer endocrine cell selectivity rather than β-cell selectivity in pancreatic islets and provide valuable insights and techniques to assess Zn2+ chelation as an approach to selectively target small molecules to pancreatic β cells.NEW & NOTEWORTHY Inhibition of BET bromodomains is a novel potential strategy to prevent and treat diabetes mellitus. However, BET inhibitors have negative side effects. We synthesized a BET inhibitor expected to exploit the high zinc concentration in β cells to accumulate in β cells. We show our inhibitor targeted pancreatic endocrine cells; however, it was less effective in immune cells. A control inhibitor showed the opposite effect. These findings help us understand how to target specific cells in diabetes treatment.
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Affiliation(s)
- Rachel A Jones Lipinski
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, Wisconsin, United States
- Program in Chemical Biology, Medical College of Wisconsin, Milwaukee, Wisconsin, United States
| | - Jennifer S Stancill
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, Wisconsin, United States
| | - Raymundo Nuñez
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, Wisconsin, United States
| | - Sarah L Wynia-Smith
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, Wisconsin, United States
| | - Daniel J Sprague
- Program in Chemical Biology, Medical College of Wisconsin, Milwaukee, Wisconsin, United States
- Department of Cell Biology, Neurobiology, and Anatomy, Medical College of Wisconsin, Milwaukee, Wisconsin, United States
- Cardiovascular Center, Medical College of Wisconsin, Milwaukee, Wisconsin, United States
| | - Joshua A Nord
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, Wisconsin, United States
- Cardiovascular Center, Medical College of Wisconsin, Milwaukee, Wisconsin, United States
| | - Amir Bird
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, Wisconsin, United States
| | - John A Corbett
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, Wisconsin, United States
| | - Brian C Smith
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, Wisconsin, United States
- Program in Chemical Biology, Medical College of Wisconsin, Milwaukee, Wisconsin, United States
- Cardiovascular Center, Medical College of Wisconsin, Milwaukee, Wisconsin, United States
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43
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McKay EJ, Luijten I, Weng X, Martinez de Morentin PB, De Frutos González E, Gao Z, Kolonin MG, Heisler LK, Semple RK. Mesenchymal-specific Alms1 knockout in mice recapitulates metabolic features of Alström syndrome. Mol Metab 2024; 84:101933. [PMID: 38583571 PMCID: PMC11047791 DOI: 10.1016/j.molmet.2024.101933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 04/01/2024] [Indexed: 04/09/2024] Open
Abstract
OBJECTIVE Alström Syndrome (AS), caused by biallelic ALMS1 mutations, includes obesity with disproportionately severe insulin resistant diabetes, dyslipidemia, and fatty liver. Prior studies suggest that hyperphagia is accounted for by loss of ALMS1 function in hypothalamic neurones, whereas disproportionate metabolic complications may be due to impaired adipose tissue expandability. We tested this by comparing the metabolic effects of global and mesenchymal stem cell (MSC)-specific Alms1 knockout. METHODS Global Alms1 knockout (KO) mice were generated by crossing floxed Alms1 and CAG-Cre mice. A Pdgfrα-Cre driver was used to abrogate Alms1 function selectively in MSCs and their descendants, including preadipocytes. We combined metabolic phenotyping of global and Pdgfrα+ Alms1-KO mice on a 45% fat diet with measurements of body composition and food intake, and histological analysis of metabolic tissues. RESULTS Assessed on 45% fat diet to promote adipose expansion, global Alms1 KO caused hyperphagia, obesity, insulin resistance, dyslipidaemia, and fatty liver. Pdgfrα-cre driven KO of Alms1 (MSC KO) recapitulated insulin resistance, fatty liver, and dyslipidaemia in both sexes. Other phenotypes were sexually dimorphic: increased fat mass was only present in female Alms1 MSC KO mice. Hyperphagia was not evident in male Alms1 MSC KO mice, but was found in MSC KO females, despite no neuronal Pdgfrα expression. CONCLUSIONS Mesenchymal deletion of Alms1 recapitulates metabolic features of AS, including fatty liver. This confirms a key role for Alms1 in the adipose lineage, where its loss is sufficient to cause systemic metabolic effects and damage to remote organs. Hyperphagia in females may depend on Alms1 deficiency in oligodendrocyte precursor cells rather than neurones. AS should be regarded as a forme fruste of lipodystrophy.
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Affiliation(s)
- Eleanor J McKay
- Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, UK
| | - Ineke Luijten
- Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, UK
| | - Xiong Weng
- Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, UK
| | - Pablo B Martinez de Morentin
- The Rowett Institute, University of Aberdeen, Aberdeen, UK; School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds, UK
| | - Elvira De Frutos González
- The Rowett Institute, University of Aberdeen, Aberdeen, UK; Área de Fisiología Humana, Departamento de Ciencias básicas de la Salud, Facultad de ciencias de la Salud, Universidad Rey Juan Carlos, 28922 Alcorcón, Madrid, Spain
| | - Zhanguo Gao
- Institute of Molecular Medicine, University of Texas Health Sciences Center at Houston, Houston, TX 77030, USA
| | - Mikhail G Kolonin
- Institute of Molecular Medicine, University of Texas Health Sciences Center at Houston, Houston, TX 77030, USA
| | - Lora K Heisler
- The Rowett Institute, University of Aberdeen, Aberdeen, UK
| | - Robert K Semple
- Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, UK; MRC Human Genetics Unit, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK.
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44
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Papinska JA, Durślewicz J, Bagavant H, Deshmukh US. Deleting Mitochondrial Superoxide Dismutase 2 in Salivary Gland Ductal Epithelial Cells Recapitulates Non-Sjögren's Sicca Syndrome. Int J Mol Sci 2024; 25:5983. [PMID: 38892170 PMCID: PMC11172772 DOI: 10.3390/ijms25115983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 05/23/2024] [Accepted: 05/27/2024] [Indexed: 06/21/2024] Open
Abstract
Elevated oxidative stress can play a pivotal role in autoimmune diseases by exacerbating inflammatory responses and tissue damage. In Sjögren's disease (SjD), the contribution of oxidative stress in the disease pathogenesis remains unclear. To address this question, we created mice with a tamoxifen-inducible conditional knockout (KO) of a critical antioxidant enzyme, superoxide dismutase 2 (Sod2), in the salivary glands (i-sg-Sod2 KO mice). Following tamoxifen treatment, Sod2 deletion occurred primarily in the ductal epithelium, and the salivary glands showed a significant downregulation of Sod2 expression. At twelve weeks post-treatment, salivary glands from the i-sg-Sod2 KO mice exhibited increased 3-Nitrotyrosine staining. Bulk RNA-seq revealed alterations in gene expression pathways related to ribosome biogenesis, mitochondrial function, and oxidative phosphorylation. Significant changes were noted in genes characteristic of salivary gland ionocytes. The i-sg-Sod2 KO mice developed reversible glandular hypofunction. However, this functional loss was not accompanied by glandular lymphocytic foci or circulating anti-nuclear antibodies. These data demonstrate that although localized oxidative stress in salivary gland ductal cells was insufficient for SjD development, it induced glandular dysfunction. The i-sg-Sod2 KO mouse resembles patients classified as non-Sjögren's sicca and will be a valuable model for deciphering oxidative-stress-mediated glandular dysfunction and recovery mechanisms.
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Affiliation(s)
- Joanna A. Papinska
- Department of Microbiology and Immunology, Oklahoma University Health Sciences Center, Oklahoma City, OK 73104, USA;
| | - Justyna Durślewicz
- Arthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104, USA; (J.D.); (H.B.)
| | - Harini Bagavant
- Arthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104, USA; (J.D.); (H.B.)
| | - Umesh S. Deshmukh
- Arthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104, USA; (J.D.); (H.B.)
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45
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Granger K, Fitch S, Shen M, Lloyd J, Bhurke A, Hancock J, Ye X, Arora R. Murine uterine gland branching is necessary for gland function in implantation. Mol Hum Reprod 2024; 30:gaae020. [PMID: 38788747 PMCID: PMC11176042 DOI: 10.1093/molehr/gaae020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 05/14/2024] [Indexed: 05/26/2024] Open
Abstract
Uterine glands are branched, tubular structures whose secretions are essential for pregnancy success. It is known that pre-implantation glandular expression of leukemia inhibitory factor (LIF) is crucial for embryo implantation; however, the contribution of uterine gland structure to gland secretions, such as LIF, is not known. Here, we use mice deficient in estrogen receptor 1 (ESR1) signaling to uncover the role of ESR1 signaling in gland branching and the role of a branched structure in LIF secretion and embryo implantation. We observed that deletion of ESR1 in neonatal uterine epithelium, stroma, and muscle using the progesterone receptor PgrCre causes a block in uterine gland development at the gland bud stage. Embryonic epithelial deletion of ESR1 using a Müllerian duct Cre line, Pax2Cre, displays gland bud elongation but a failure in gland branching. Reduction of ESR1 in adult uterine epithelium using the lactoferrin-Cre (LtfCre) displays normally branched uterine glands. Unbranched glands from Pax2Cre Esr1flox/flox uteri fail to express glandular pre-implantation Lif, preventing implantation chamber formation and embryo alignment along the uterine mesometrial-antimesometrial axis. In contrast, branched glands from LtfCre Esr1flox/flox uteri display reduced expression of ESR1 and glandular Lif resulting in delayed implantation chamber formation and embryo-uterine axes alignment but mice deliver a normal number of pups. Finally, pre-pubertal unbranched glands in control mice express Lif in the luminal epithelium but fail to express Lif in the glandular epithelium, even in the presence of estrogen. These data strongly suggest that branched glands are necessary for pre-implantation glandular Lif expression for implantation success. Our study is the first to identify a relationship between the branched structure and secretory function of uterine glands and provides a framework for understanding how uterine gland structure-function contributes to pregnancy success.
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Affiliation(s)
- Katrina Granger
- Department of Obstetrics, Gynecology and Reproductive Biology, Michigan State University, East Lansing, MI, USA
- Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, MI, USA
| | - Sarah Fitch
- Department of Obstetrics, Gynecology and Reproductive Biology, Michigan State University, East Lansing, MI, USA
- Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, MI, USA
| | - May Shen
- Department of Obstetrics, Gynecology and Reproductive Biology, Michigan State University, East Lansing, MI, USA
- Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, MI, USA
| | - Jarrett Lloyd
- Department of Obstetrics, Gynecology and Reproductive Biology, Michigan State University, East Lansing, MI, USA
- Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, MI, USA
| | - Aishwarya Bhurke
- Department of Obstetrics, Gynecology and Reproductive Biology, Michigan State University, East Lansing, MI, USA
- Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, MI, USA
| | - Jonathan Hancock
- Department of Physiology and Pharmacology, College of Veterinary Medicine, University of Georgia, Athens, GA, USA
- Interdisciplinary Toxicology Program, University of Georgia, Athens, GA, USA
| | - Xiaoqin Ye
- Department of Physiology and Pharmacology, College of Veterinary Medicine, University of Georgia, Athens, GA, USA
- Interdisciplinary Toxicology Program, University of Georgia, Athens, GA, USA
| | - Ripla Arora
- Department of Obstetrics, Gynecology and Reproductive Biology, Michigan State University, East Lansing, MI, USA
- Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, MI, USA
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46
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Fang Y, Yuan C, Li C, Lu C, Yu W, Wang G. The Mediator Med23 controls a transcriptional switch for muscle stem cell proliferation and differentiation in muscle regeneration. Cell Rep 2024; 43:114177. [PMID: 38691453 DOI: 10.1016/j.celrep.2024.114177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 03/14/2024] [Accepted: 04/16/2024] [Indexed: 05/03/2024] Open
Abstract
Muscle stem cells (MuSCs) contribute to a robust muscle regeneration process after injury, which is highly orchestrated by the sequential expression of multiple key transcription factors. However, it remains unclear how key transcription factors and cofactors such as the Mediator complex cooperate to regulate myogenesis. Here, we show that the Mediator Med23 is critically important for MuSC-mediated muscle regeneration. Med23 is increasingly expressed in activated/proliferating MuSCs on isolated myofibers or in response to muscle injury. Med23 deficiency reduced MuSC proliferation and enhanced its precocious differentiation, ultimately compromising muscle regeneration. Integrative analysis revealed that Med23 oppositely impacts Ternary complex factor (TCF)-targeted MuSC proliferation genes and myocardin-related transcription factor (MRTF)-targeted myogenic differentiation genes. Consistently, Med23 deficiency decreases the ETS-like transcription factor 1 (Elk1)/serum response factor (SRF) binding at proliferation gene promoters but promotes MRTF-A/SRF binding at myogenic gene promoters. Overall, our study reveals the important transcriptional control mechanism of Med23 in balancing MuSC proliferation and differentiation in muscle regeneration.
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Affiliation(s)
- Yi Fang
- State Key Laboratory of Genetic Engineering, School of Life Sciences and Zhongshan Hospital, Fudan University, Shanghai 200438, China; State Key Laboratory of Cell Biology, Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
| | - Chunlei Yuan
- State Key Laboratory of Genetic Engineering, School of Life Sciences and Zhongshan Hospital, Fudan University, Shanghai 200438, China
| | - Chonghui Li
- State Key Laboratory of Genetic Engineering, School of Life Sciences and Zhongshan Hospital, Fudan University, Shanghai 200438, China; State Key Laboratory of Cell Biology, Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
| | - Chengjiang Lu
- State Key Laboratory of Genetic Engineering, School of Life Sciences and Zhongshan Hospital, Fudan University, Shanghai 200438, China; State Key Laboratory of Cell Biology, Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
| | - Wei Yu
- State Key Laboratory of Genetic Engineering, School of Life Sciences and Zhongshan Hospital, Fudan University, Shanghai 200438, China
| | - Gang Wang
- State Key Laboratory of Genetic Engineering, School of Life Sciences and Zhongshan Hospital, Fudan University, Shanghai 200438, China.
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47
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Royo F, Garcia-Vallicrosa C, Azparren-Angulo M, Bordanaba-Florit G, Lopez-Sarrio S, Falcon-Perez JM. Three-Dimensional Hepatocyte Spheroids: Model for Assessing Chemotherapy in Hepatocellular Carcinoma. Biomedicines 2024; 12:1200. [PMID: 38927406 PMCID: PMC11201042 DOI: 10.3390/biomedicines12061200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 05/13/2024] [Accepted: 05/22/2024] [Indexed: 06/28/2024] Open
Abstract
BACKGROUND Three-dimensional cellular models provide a more comprehensive representation of in vivo cell properties, encompassing physiological characteristics and drug susceptibility. METHODS Primary hepatocytes were seeded in ultra-low attachment plates to form spheroids, with or without tumoral cells. Spheroid structure, cell proliferation, and apoptosis were analyzed using histological staining techniques. In addition, extracellular vesicles were isolated from conditioned media by differential ultracentrifugation. Spheroids were exposed to cytotoxic drugs, and both spheroid growth and cell death were measured by microscopic imaging and flow cytometry with vital staining, respectively. RESULTS Concerning spheroid structure, an active outer layer forms a boundary with the media, while the inner core comprises a mass of cell debris. Hepatocyte-formed spheroids release vesicles into the extracellular media, and a decrease in the concentration of vesicles in the culture media can be observed over time. When co-cultured with tumoral cells, a distinct distribution pattern emerges over the primary hepatocytes, resulting in different spheroid conformations. Tumoral cell growth was compromised upon antitumoral drug challenges. CONCLUSIONS Treatment of mixed spheroids with different cytotoxic drugs enables the characterization of drug effects on both hepatocytes and tumoral cells, determining drug specificity effects on these cell types.
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Affiliation(s)
- Felix Royo
- Exosomes Laboratory and Metabolomics Platform, Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), 48160 Derio, Spain; (C.G.-V.); (M.A.-A.); (G.B.-F.); (S.L.-S.)
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), 28029 Madrid, Spain
| | - Clara Garcia-Vallicrosa
- Exosomes Laboratory and Metabolomics Platform, Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), 48160 Derio, Spain; (C.G.-V.); (M.A.-A.); (G.B.-F.); (S.L.-S.)
| | - Maria Azparren-Angulo
- Exosomes Laboratory and Metabolomics Platform, Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), 48160 Derio, Spain; (C.G.-V.); (M.A.-A.); (G.B.-F.); (S.L.-S.)
| | - Guillermo Bordanaba-Florit
- Exosomes Laboratory and Metabolomics Platform, Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), 48160 Derio, Spain; (C.G.-V.); (M.A.-A.); (G.B.-F.); (S.L.-S.)
| | - Silvia Lopez-Sarrio
- Exosomes Laboratory and Metabolomics Platform, Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), 48160 Derio, Spain; (C.G.-V.); (M.A.-A.); (G.B.-F.); (S.L.-S.)
| | - Juan Manuel Falcon-Perez
- Exosomes Laboratory and Metabolomics Platform, Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), 48160 Derio, Spain; (C.G.-V.); (M.A.-A.); (G.B.-F.); (S.L.-S.)
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), 28029 Madrid, Spain
- IKERBASQUE, Basque Foundation for Science, 48013 Bilbao, Spain
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48
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Wang L, Yi S, Cui X, Guo Z, Wang M, Kou X, Zhao Y, Wang H, Jiang C, Gao S, Yang G, Chen J, Gao R. Chromatin landscape instructs precise transcription factor regulome during embryonic lineage specification. Cell Rep 2024; 43:114136. [PMID: 38643480 DOI: 10.1016/j.celrep.2024.114136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 03/10/2024] [Accepted: 04/08/2024] [Indexed: 04/23/2024] Open
Abstract
Embryos, originating from fertilized eggs, undergo continuous cell division and differentiation, accompanied by dramatic changes in transcription, translation, and metabolism. Chromatin regulators, including transcription factors (TFs), play indispensable roles in regulating these processes. Recently, the trophoblast regulator TFAP2C was identified as crucial in initiating early cell fate decisions. However, Tfap2c transcripts persist in both the inner cell mass and trophectoderm of blastocysts, prompting inquiry into Tfap2c's function in post-lineage establishment. In this study, we delineate the dynamics of TFAP2C during the mouse peri-implantation stage and elucidate its collaboration with the key lineage regulators CDX2 and NANOG. Importantly, we propose that de novo formation of H3K9me3 in the extraembryonic ectoderm during implantation antagonizes TFAP2C binding to crucial developmental genes, thereby maintaining its lineage identity. Together, these results highlight the plasticity of the chromatin environment in designating the genomic binding of highly adaptable lineage-specific TFs and regulating embryonic cell fates.
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Affiliation(s)
- Liping Wang
- Shanghai Tenth People's Hospital, School of Life Sciences and Technology, Tongji University, Shanghai 200072, China; Frontier Science Center for Stem Cell Research, Tongji University, Shanghai 200092, China
| | - Shanru Yi
- Shanghai Tenth People's Hospital, School of Life Sciences and Technology, Tongji University, Shanghai 200072, China; Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China; Frontier Science Center for Stem Cell Research, Tongji University, Shanghai 200092, China
| | - Xinyu Cui
- Shanghai Tenth People's Hospital, School of Life Sciences and Technology, Tongji University, Shanghai 200072, China; Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of the Ministry of Education, Orthopaedic Department of Tongji Hospital, School of Life Sciences and Technology, Tongji University, Shanghai 200065, China; Frontier Science Center for Stem Cell Research, Tongji University, Shanghai 200092, China
| | - Zhenxiang Guo
- Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China; Frontier Science Center for Stem Cell Research, Tongji University, Shanghai 200092, China
| | - Mengting Wang
- Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China; Frontier Science Center for Stem Cell Research, Tongji University, Shanghai 200092, China
| | - Xiaochen Kou
- Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China; Frontier Science Center for Stem Cell Research, Tongji University, Shanghai 200092, China
| | - Yanhong Zhao
- Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China; Frontier Science Center for Stem Cell Research, Tongji University, Shanghai 200092, China
| | - Hong Wang
- Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China; Frontier Science Center for Stem Cell Research, Tongji University, Shanghai 200092, China
| | - Cizhong Jiang
- Key Laboratory of Spine and Spinal Cord Injury Repair and Regeneration of the Ministry of Education, Orthopaedic Department of Tongji Hospital, School of Life Sciences and Technology, Tongji University, Shanghai 200065, China; Frontier Science Center for Stem Cell Research, Tongji University, Shanghai 200092, China
| | - Shaorong Gao
- Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China; Frontier Science Center for Stem Cell Research, Tongji University, Shanghai 200092, China; Shanghai Institute of Stem Cell Research and Clinical Translation, Shanghai East Hospital, Tongji University, Shanghai 200120, China.
| | - Guang Yang
- Shanghai Tenth People's Hospital, School of Life Sciences and Technology, Tongji University, Shanghai 200072, China; Frontier Science Center for Stem Cell Research, Tongji University, Shanghai 200092, China.
| | - Jiayu Chen
- Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China; Frontier Science Center for Stem Cell Research, Tongji University, Shanghai 200092, China.
| | - Rui Gao
- Clinical and Translational Research Center of Shanghai First Maternity and Infant Hospital, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China; Frontier Science Center for Stem Cell Research, Tongji University, Shanghai 200092, China.
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49
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Chen R, Lukianova E, van der Loeff IS, Spegarova JS, Willet JDP, James KD, Ryder EJ, Griffin H, IJspeert H, Gajbhiye A, Lamoliatte F, Marin-Rubio JL, Woodbine L, Lemos H, Swan DJ, Pintar V, Sayes K, Ruiz-Morales ER, Eastham S, Dixon D, Prete M, Prigmore E, Jeggo P, Boyes J, Mellor A, Huang L, van der Burg M, Engelhardt KR, Stray-Pedersen A, Erichsen HC, Gennery AR, Trost M, Adams DJ, Anderson G, Lorenc A, Trynka G, Hambleton S. NUDCD3 deficiency disrupts V(D)J recombination to cause SCID and Omenn syndrome. Sci Immunol 2024; 9:eade5705. [PMID: 38787962 DOI: 10.1126/sciimmunol.ade5705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 04/24/2024] [Indexed: 05/26/2024]
Abstract
Inborn errors of T cell development present a pediatric emergency in which timely curative therapy is informed by molecular diagnosis. In 11 affected patients across four consanguineous kindreds, we detected homozygosity for a single deleterious missense variant in the gene NudC domain-containing 3 (NUDCD3). Two infants had severe combined immunodeficiency with the complete absence of T and B cells (T -B- SCID), whereas nine showed classical features of Omenn syndrome (OS). Restricted antigen receptor gene usage by residual T lymphocytes suggested impaired V(D)J recombination. Patient cells showed reduced expression of NUDCD3 protein and diminished ability to support RAG-mediated recombination in vitro, which was associated with pathologic sequestration of RAG1 in the nucleoli. Although impaired V(D)J recombination in a mouse model bearing the homologous variant led to milder immunologic abnormalities, NUDCD3 is absolutely required for healthy T and B cell development in humans.
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Affiliation(s)
- Rui Chen
- Translational and Clinical Research Institute, Newcastle University, NE2 4HH Newcastle upon Tyne, UK
| | - Elena Lukianova
- Wellcome Sanger Institute, Wellcome Genome Campus, CB10 1SA Hinxton, UK
| | - Ina Schim van der Loeff
- Translational and Clinical Research Institute, Newcastle University, NE2 4HH Newcastle upon Tyne, UK
- Great North Children's Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, NE1 4LP Newcastle upon Tyne, UK
| | | | - Joseph D P Willet
- Translational and Clinical Research Institute, Newcastle University, NE2 4HH Newcastle upon Tyne, UK
| | - Kieran D James
- Institute of Immunology and Immunotherapy, University of Birmingham. B15 2TT Birmingham, UK
| | - Edward J Ryder
- Wellcome Sanger Institute, Wellcome Genome Campus, CB10 1SA Hinxton, UK
| | - Helen Griffin
- Translational and Clinical Research Institute, Newcastle University, NE2 4HH Newcastle upon Tyne, UK
| | - Hanna IJspeert
- Department of Immunology, Erasmus University Medical Center, Rotterdam 3000 CA, Netherlands
| | - Akshada Gajbhiye
- Biosciences Institute, Newcastle University, NE2 4HH Newcastle upon Tyne, UK
| | - Frederic Lamoliatte
- Biosciences Institute, Newcastle University, NE2 4HH Newcastle upon Tyne, UK
| | - Jose L Marin-Rubio
- Biosciences Institute, Newcastle University, NE2 4HH Newcastle upon Tyne, UK
| | - Lisa Woodbine
- Genome Damage and Stability Centre, University of Sussex, BN1 9RQ Brighton, UK
| | - Henrique Lemos
- Translational and Clinical Research Institute, Newcastle University, NE2 4HH Newcastle upon Tyne, UK
| | - David J Swan
- Translational and Clinical Research Institute, Newcastle University, NE2 4HH Newcastle upon Tyne, UK
| | - Valeria Pintar
- Translational and Clinical Research Institute, Newcastle University, NE2 4HH Newcastle upon Tyne, UK
| | - Kamal Sayes
- Translational and Clinical Research Institute, Newcastle University, NE2 4HH Newcastle upon Tyne, UK
| | | | - Simon Eastham
- Wellcome Sanger Institute, Wellcome Genome Campus, CB10 1SA Hinxton, UK
| | - David Dixon
- Biosciences Institute, Newcastle University, NE2 4HH Newcastle upon Tyne, UK
| | - Martin Prete
- Wellcome Sanger Institute, Wellcome Genome Campus, CB10 1SA Hinxton, UK
| | - Elena Prigmore
- Wellcome Sanger Institute, Wellcome Genome Campus, CB10 1SA Hinxton, UK
| | - Penny Jeggo
- Genome Damage and Stability Centre, University of Sussex, BN1 9RQ Brighton, UK
| | - Joan Boyes
- Faculty of Biological Sciences, University of Leeds, LS2 9JT Leeds, UK
| | - Andrew Mellor
- Translational and Clinical Research Institute, Newcastle University, NE2 4HH Newcastle upon Tyne, UK
| | - Lei Huang
- Translational and Clinical Research Institute, Newcastle University, NE2 4HH Newcastle upon Tyne, UK
| | - Mirjam van der Burg
- Department of Immunology, Erasmus University Medical Center, Rotterdam 3000 CA, Netherlands
| | - Karin R Engelhardt
- Translational and Clinical Research Institute, Newcastle University, NE2 4HH Newcastle upon Tyne, UK
| | - Asbjørg Stray-Pedersen
- Norwegian National Unit for Newborn Screening, Division of Pediatric and Adolescent Medicine, Oslo University Hospital, Oslo 0424, Norway
| | - Hans Christian Erichsen
- Division of Pediatric and Adolescent Medicine, Oslo University Hospital and Institute of Clinical Medicine, University of Oslo, Oslo 0424, Norway
| | - Andrew R Gennery
- Translational and Clinical Research Institute, Newcastle University, NE2 4HH Newcastle upon Tyne, UK
- Great North Children's Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, NE1 4LP Newcastle upon Tyne, UK
| | - Matthias Trost
- Biosciences Institute, Newcastle University, NE2 4HH Newcastle upon Tyne, UK
| | - David J Adams
- Wellcome Sanger Institute, Wellcome Genome Campus, CB10 1SA Hinxton, UK
| | - Graham Anderson
- Institute of Immunology and Immunotherapy, University of Birmingham. B15 2TT Birmingham, UK
| | - Anna Lorenc
- Wellcome Sanger Institute, Wellcome Genome Campus, CB10 1SA Hinxton, UK
| | - Gosia Trynka
- Wellcome Sanger Institute, Wellcome Genome Campus, CB10 1SA Hinxton, UK
- Open Targets, Wellcome Genome Campus, CB10 1SA Hinxton, UK
| | - Sophie Hambleton
- Translational and Clinical Research Institute, Newcastle University, NE2 4HH Newcastle upon Tyne, UK
- Great North Children's Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, NE1 4LP Newcastle upon Tyne, UK
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50
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Weinberger T, Denise M, Joppich M, Fischer M, Garcia Rodriguez C, Kumaraswami K, Wimmler V, Ablinger S, Räuber S, Fang J, Liu L, Liu WH, Winterhalter J, Lichti J, Thomas L, Esfandyari D, Percin G, Matin S, Hidalgo A, Waskow C, Engelhardt S, Todica A, Zimmer R, Pridans C, Gomez Perdiguero E, Schulz C. Resident and recruited macrophages differentially contribute to cardiac healing after myocardial ischemia. eLife 2024; 12:RP89377. [PMID: 38775664 PMCID: PMC11111219 DOI: 10.7554/elife.89377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/24/2024] Open
Abstract
Cardiac macrophages are heterogenous in phenotype and functions, which has been associated with differences in their ontogeny. Despite extensive research, our understanding of the precise role of different subsets of macrophages in ischemia/reperfusion (I/R) injury remains incomplete. We here investigated macrophage lineages and ablated tissue macrophages in homeostasis and after I/R injury in a CSF1R-dependent manner. Genomic deletion of a fms-intronic regulatory element (FIRE) in the Csf1r locus resulted in specific absence of resident homeostatic and antigen-presenting macrophages, without affecting the recruitment of monocyte-derived macrophages to the infarcted heart. Specific absence of homeostatic, monocyte-independent macrophages altered the immune cell crosstalk in response to injury and induced proinflammatory neutrophil polarization, resulting in impaired cardiac remodeling without influencing infarct size. In contrast, continuous CSF1R inhibition led to depletion of both resident and recruited macrophage populations. This augmented adverse remodeling after I/R and led to an increased infarct size and deterioration of cardiac function. In summary, resident macrophages orchestrate inflammatory responses improving cardiac remodeling, while recruited macrophages determine infarct size after I/R injury. These findings attribute distinct beneficial effects to different macrophage populations in the context of myocardial infarction.
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Affiliation(s)
- Tobias Weinberger
- Medical Clinic I., Department of Cardiology, University Hospital, Ludwig Maximilian UniversityMunichGermany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine UniversityMunichGermany
- DZHK (German Centre for Cardiovascular Research), Partner site Munich Heart AllianceMunichGermany
- Institut Pasteur, Unité Macrophages et Développement de l'Immunité, Département de Biologie du Développement et Cellules SouchesParisFrance
| | - Messerer Denise
- Medical Clinic I., Department of Cardiology, University Hospital, Ludwig Maximilian UniversityMunichGermany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine UniversityMunichGermany
| | - Markus Joppich
- LFE Bioinformatik, Department of Informatics, Ludwig Maximilian UniversityMunichGermany
| | - Maximilian Fischer
- Medical Clinic I., Department of Cardiology, University Hospital, Ludwig Maximilian UniversityMunichGermany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine UniversityMunichGermany
- DZHK (German Centre for Cardiovascular Research), Partner site Munich Heart AllianceMunichGermany
| | - Clarisabel Garcia Rodriguez
- Institut Pasteur, Unité Macrophages et Développement de l'Immunité, Département de Biologie du Développement et Cellules SouchesParisFrance
| | - Konda Kumaraswami
- Medical Clinic I., Department of Cardiology, University Hospital, Ludwig Maximilian UniversityMunichGermany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine UniversityMunichGermany
| | - Vanessa Wimmler
- Medical Clinic I., Department of Cardiology, University Hospital, Ludwig Maximilian UniversityMunichGermany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine UniversityMunichGermany
| | - Sonja Ablinger
- Medical Clinic I., Department of Cardiology, University Hospital, Ludwig Maximilian UniversityMunichGermany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine UniversityMunichGermany
| | - Saskia Räuber
- Medical Clinic I., Department of Cardiology, University Hospital, Ludwig Maximilian UniversityMunichGermany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine UniversityMunichGermany
- Department of Neurology, Medical Faculty, Heinrich Heine University of DüsseldorfDüsseldorfGermany
| | - Jiahui Fang
- Medical Clinic I., Department of Cardiology, University Hospital, Ludwig Maximilian UniversityMunichGermany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine UniversityMunichGermany
| | - Lulu Liu
- Medical Clinic I., Department of Cardiology, University Hospital, Ludwig Maximilian UniversityMunichGermany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine UniversityMunichGermany
| | - Wing Han Liu
- Medical Clinic I., Department of Cardiology, University Hospital, Ludwig Maximilian UniversityMunichGermany
| | - Julia Winterhalter
- Medical Clinic I., Department of Cardiology, University Hospital, Ludwig Maximilian UniversityMunichGermany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine UniversityMunichGermany
| | - Johannes Lichti
- Medical Clinic I., Department of Cardiology, University Hospital, Ludwig Maximilian UniversityMunichGermany
| | - Lukas Thomas
- Medical Clinic I., Department of Cardiology, University Hospital, Ludwig Maximilian UniversityMunichGermany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine UniversityMunichGermany
- DZHK (German Centre for Cardiovascular Research), Partner site Munich Heart AllianceMunichGermany
| | - Dena Esfandyari
- DZHK (German Centre for Cardiovascular Research), Partner site Munich Heart AllianceMunichGermany
- Institute of Pharmacology and Toxicology, Technical University MunichMunichGermany
| | - Guelce Percin
- Immunology of Aging, Leibniz-Institute on Aging - Fritz-Lipmann-Institute (FLI)JenaGermany
| | - Sandra Matin
- Area of Cell & Developmental Biology, Centro Nacional de Investigaciones Cardiovasculares Carlos IIIMadridSpain
| | - Andrés Hidalgo
- Area of Cell & Developmental Biology, Centro Nacional de Investigaciones Cardiovasculares Carlos IIIMadridSpain
- Vascular Biology and Therapeutics Program and Department of Immunobiology, Yale University School of MedicineNew HavenUnited States
| | - Claudia Waskow
- Immunology of Aging, Leibniz-Institute on Aging - Fritz-Lipmann-Institute (FLI)JenaGermany
- Faculty of Biological Sciences, Friedrich-Schiller-UniversityJenaGermany
| | - Stefan Engelhardt
- DZHK (German Centre for Cardiovascular Research), Partner site Munich Heart AllianceMunichGermany
- Institute of Pharmacology and Toxicology, Technical University MunichMunichGermany
| | - Andrei Todica
- Department of Nuclear Medicine, Ludwig Maximilian UniversityMunichGermany
| | - Ralf Zimmer
- LFE Bioinformatik, Department of Informatics, Ludwig Maximilian UniversityMunichGermany
| | - Clare Pridans
- Simons Initiative for the Developing Brain, Centre for Discovery Brain Sciences, University of EdinburghEdinburghUnited Kingdom
- University of Edinburgh Centre for Inflammation Research, The Queen's Medical Research InstituteEdinburghUnited Kingdom
| | - Elisa Gomez Perdiguero
- Institut Pasteur, Unité Macrophages et Développement de l'Immunité, Département de Biologie du Développement et Cellules SouchesParisFrance
| | - Christian Schulz
- Medical Clinic I., Department of Cardiology, University Hospital, Ludwig Maximilian UniversityMunichGermany
- Institute of Surgical Research at the Walter-Brendel-Centre of Experimental Medicine UniversityMunichGermany
- DZHK (German Centre for Cardiovascular Research), Partner site Munich Heart AllianceMunichGermany
- Department of Immunopharmacology, Mannheim Institute for Innate Immunoscience (MI3), Medical Faculty Mannheim, Heidelberg UniversityMannheimGermany
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