1
|
Zhang R, Sun J, Xie Y, Zhu W, Tao M, Chen Y, Xie W, Bade R, Jiang S, Liu X, Shao G, Pan W, Zhou C, Jia X. Mutant kri1l causes abnormal retinal development via cell cycle arrest and apoptosis induction. Cell Death Discov 2024; 10:251. [PMID: 38789412 PMCID: PMC11126728 DOI: 10.1038/s41420-024-02022-2] [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: 07/14/2023] [Revised: 05/04/2024] [Accepted: 05/10/2024] [Indexed: 05/26/2024] Open
Abstract
Damage to the ribosome or an imbalance in protein biosynthesis can lead to some human diseases, such as diabetic retinopathy (DR) and other eye diseases. Here, we reported that the kri1l gene was responsible for retinal development. The kri1l gene encodes an essential component of the rRNA small subunit processome. The retinal structure was disrupted in kri1l mutants, which resulted in small eyes. The boundaries of each layer of cells in the retina were blurred, and each layer of cells was narrowed and decreased. The photoreceptor cells and Müller glia cells almost disappeared in kri1l mutants. The lack of photoreceptor cells caused a fear of light response. The development of the retina started without abnormalities, and the abnormalities began two days after fertilization. In the kri1l mutant, retinal cell differentiation was defective, resulting in the disappearance of cone cells and Müller cells. The proliferation of retinal cells was increased, while apoptosis was also enhanced in kri1l mutants. γ-H2AX upregulation indicated the accumulation of DNA damage, which resulted in cell cycle arrest and apoptosis. The kri1l mutation reduced the expression of some opsin genes and key retinal genes, which are also essential for retinal development.
Collapse
Affiliation(s)
- Rong Zhang
- Department of Basic Medicine and Forensic Medicine, Baotou Medical College, Inner Mongolia, Baotou, China
- Inner Mongolia Key laboratory of Hypoxic Translational Medicine, Baotou Medical College, Inner Mongolia, Baotou, China
- Fourth Hospital of Baotou, Inner Mongolia, Baotou, China
| | - Jiajun Sun
- Department of Basic Medicine and Forensic Medicine, Baotou Medical College, Inner Mongolia, Baotou, China
- Inner Mongolia Key laboratory of Hypoxic Translational Medicine, Baotou Medical College, Inner Mongolia, Baotou, China
| | - Yabin Xie
- Inner Mongolia Key laboratory of Hypoxic Translational Medicine, Baotou Medical College, Inner Mongolia, Baotou, China
- Beijing Key Laboratory of Hypoxic Conditioning Translational Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Wei Zhu
- School of Pharmacy, Baotou Medical College, Inner Mongolia, Baotou, China
| | - Meitong Tao
- Department of Basic Medicine and Forensic Medicine, Baotou Medical College, Inner Mongolia, Baotou, China
- Inner Mongolia Key laboratory of Hypoxic Translational Medicine, Baotou Medical College, Inner Mongolia, Baotou, China
| | - Yu Chen
- Department of Basic Medicine and Forensic Medicine, Baotou Medical College, Inner Mongolia, Baotou, China
- Inner Mongolia Key laboratory of Hypoxic Translational Medicine, Baotou Medical College, Inner Mongolia, Baotou, China
| | - Wei Xie
- Inner Mongolia Key laboratory of Hypoxic Translational Medicine, Baotou Medical College, Inner Mongolia, Baotou, China
- Beijing Key Laboratory of Hypoxic Conditioning Translational Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Rengui Bade
- Inner Mongolia Key laboratory of Hypoxic Translational Medicine, Baotou Medical College, Inner Mongolia, Baotou, China
- Beijing Key Laboratory of Hypoxic Conditioning Translational Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Shuyuan Jiang
- Inner Mongolia Key laboratory of Hypoxic Translational Medicine, Baotou Medical College, Inner Mongolia, Baotou, China
- Beijing Key Laboratory of Hypoxic Conditioning Translational Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China
- School of Pharmacy, Baotou Medical College, Inner Mongolia, Baotou, China
| | - Xiaolei Liu
- Inner Mongolia Key laboratory of Hypoxic Translational Medicine, Baotou Medical College, Inner Mongolia, Baotou, China
- Beijing Key Laboratory of Hypoxic Conditioning Translational Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China
- School of Pharmacy, Baotou Medical College, Inner Mongolia, Baotou, China
| | - Guo Shao
- Inner Mongolia Key laboratory of Hypoxic Translational Medicine, Baotou Medical College, Inner Mongolia, Baotou, China
- Beijing Key Laboratory of Hypoxic Conditioning Translational Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China
- Center for Translational Medicine and Department of Laboratory Medicine, The Third People's Hospital of Longgang District, Shenzhen, China
| | - Weijun Pan
- Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Shanghai, China
| | - Chengjiang Zhou
- Department of Basic Medicine and Forensic Medicine, Baotou Medical College, Inner Mongolia, Baotou, China.
| | - Xiaoe Jia
- Department of Basic Medicine and Forensic Medicine, Baotou Medical College, Inner Mongolia, Baotou, China.
- Inner Mongolia Key laboratory of Hypoxic Translational Medicine, Baotou Medical College, Inner Mongolia, Baotou, China.
- Beijing Key Laboratory of Hypoxic Conditioning Translational Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China.
| |
Collapse
|
2
|
Chen L, Zhang M, Fang L, Yang X, Cao N, Xu L, Shi L, Cao Y. Coordinated regulation of the ribosome and proteasome by PRMT1 in the maintenance of neural stemness in cancer cells and neural stem cells. J Biol Chem 2021; 297:101275. [PMID: 34619150 PMCID: PMC8546425 DOI: 10.1016/j.jbc.2021.101275] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 09/19/2021] [Accepted: 09/30/2021] [Indexed: 12/17/2022] Open
Abstract
Previous studies suggested that cancer cells resemble neural stem/progenitor cells in regulatory network, tumorigenicity, and differentiation potential, and that neural stemness might represent the ground or basal state of differentiation and tumorigenicity. The neural ground state is reflected in the upregulation and enrichment of basic cell machineries and developmental programs, such as cell cycle, ribosomes, proteasomes, and epigenetic factors, in cancers and in embryonic neural or neural stem cells. However, how these machineries are concertedly regulated is unclear. Here, we show that loss of neural stemness in cancer or neural stem cells via muscle-like differentiation or neuronal differentiation, respectively, caused downregulation of ribosome and proteasome components and major epigenetic factors, including PRMT1, EZH2, and LSD1. Furthermore, inhibition of PRMT1, an oncoprotein that is enriched in neural cells during embryogenesis, caused neuronal-like differentiation, downregulation of a similar set of proteins downregulated by differentiation, and alteration of subcellular distribution of ribosome and proteasome components. By contrast, PRMT1 overexpression led to an upregulation of these proteins. PRMT1 interacted with these components and protected them from degradation via recruitment of the deubiquitinase USP7, also known to promote cancer and enriched in embryonic neural cells, thereby maintaining a high level of epigenetic factors that maintain neural stemness, such as EZH2 and LSD1. Taken together, our data indicate that PRMT1 inhibition resulted in repression of cell tumorigenicity. We conclude that PRMT1 coordinates ribosome and proteasome activity to match the needs for high production and homeostasis of proteins that maintain stemness in cancer and neural stem cells.
Collapse
Affiliation(s)
- Lu Chen
- Research Institute of Nanjing University in Shenzhen, Shenzhen, China; MOE Key Laboratory of Model Animals for Disease Study, Model Animal Research Center, Nanjing University, Nanjing, China; Jiangsu Key Laboratory of Molecular Medicine of the Medical School, Nanjing University, Nanjing, China
| | - Min Zhang
- Research Institute of Nanjing University in Shenzhen, Shenzhen, China; MOE Key Laboratory of Model Animals for Disease Study, Model Animal Research Center, Nanjing University, Nanjing, China; Jiangsu Key Laboratory of Molecular Medicine of the Medical School, Nanjing University, Nanjing, China
| | - Lei Fang
- Jiangsu Key Laboratory of Molecular Medicine of the Medical School, Nanjing University, Nanjing, China
| | - Xiaoli Yang
- Research Institute of Nanjing University in Shenzhen, Shenzhen, China; MOE Key Laboratory of Model Animals for Disease Study, Model Animal Research Center, Nanjing University, Nanjing, China; Jiangsu Key Laboratory of Molecular Medicine of the Medical School, Nanjing University, Nanjing, China
| | - Ning Cao
- Research Institute of Nanjing University in Shenzhen, Shenzhen, China; MOE Key Laboratory of Model Animals for Disease Study, Model Animal Research Center, Nanjing University, Nanjing, China; Jiangsu Key Laboratory of Molecular Medicine of the Medical School, Nanjing University, Nanjing, China
| | - Liyang Xu
- MOE Key Laboratory of Model Animals for Disease Study, Model Animal Research Center, Nanjing University, Nanjing, China; Jiangsu Key Laboratory of Molecular Medicine of the Medical School, Nanjing University, Nanjing, China
| | - Lihua Shi
- MOE Key Laboratory of Model Animals for Disease Study, Model Animal Research Center, Nanjing University, Nanjing, China; Jiangsu Key Laboratory of Molecular Medicine of the Medical School, Nanjing University, Nanjing, China
| | - Ying Cao
- Research Institute of Nanjing University in Shenzhen, Shenzhen, China; MOE Key Laboratory of Model Animals for Disease Study, Model Animal Research Center, Nanjing University, Nanjing, China; Jiangsu Key Laboratory of Molecular Medicine of the Medical School, Nanjing University, Nanjing, China.
| |
Collapse
|
3
|
Neural is Fundamental: Neural Stemness as the Ground State of Cell Tumorigenicity and Differentiation Potential. Stem Cell Rev Rep 2021; 18:37-55. [PMID: 34714532 DOI: 10.1007/s12015-021-10275-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/01/2021] [Indexed: 01/07/2023]
Abstract
Tumorigenic cells are similar to neural stem cells or embryonic neural cells in regulatory networks, tumorigenicity and pluripotent differentiation potential. By integrating the evidence from developmental biology, tumor biology and evolution, I will make a detailed discussion on the observations and propose that neural stemness underlies two coupled cell properties, tumorigenicity and pluripotent differentiation potential. Neural stemness property of tumorigenic cells can hopefully integrate different observations/concepts underlying tumorigenesis. Neural stem cells and tumorigenic cells share regulatory networks; both exhibit neural stemness, tumorigenicity and pluripotent differentiation potential; both depend on expression or activation of ancestral genes; both rely primarily on aerobic glycolytic metabolism; both can differentiate into various cells/tissues that are derived from three germ layers, leading to tumor formation resembling severely disorganized or more degenerated process of embryonic tissue differentiation; both are enriched in long genes with more splice variants that provide more plastic scaffolds for cell differentiation, etc. Neural regulatory networks, which include higher levels of basic machineries of cell physiological functions and developmental programs, work concertedly to define a basic state with fast cell cycle and proliferation. This is predestined by the evolutionary advantage of neural state, the ground or initial state for multicellularity with adaptation to an ancient environment. Tumorigenesis might represent a process of restoration of neural ground state, thereby restoring a state with fast proliferation and pluripotent differentiation potential in somatic cells. Tumorigenesis and pluripotent differentiation potential might be better understood from understanding neural stemness, and cancer therapy should benefit more from targeting neural stemness.
Collapse
|
4
|
Wei H, Xu Y, Wang Y, Xu L, Mo C, Li L, Shen B, Sun Y, Cheng P, Yang L, Pang Y, Qin A, Cao Y, Morrison SJ, Yue R. Identification of Fibroblast Activation Protein as an Osteogenic Suppressor and Anti-osteoporosis Drug Target. Cell Rep 2021; 33:108252. [PMID: 33053358 DOI: 10.1016/j.celrep.2020.108252] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 07/31/2020] [Accepted: 09/17/2020] [Indexed: 12/12/2022] Open
Abstract
Osteogenic suppressors such as Sclerostin not only regulate skeletal development and regeneration but also serve as anti-osteoporosis drug targets. However, very few druggable suppressors have been identified due to limited understanding of the molecular mechanisms governing osteogenesis. Here, we show that fibroblast activation protein (Fap), a serine protease inhibited by the bone growth factor Osteolectin, is an osteogenic suppressor. Genetic deletion of Fap significantly ameliorates limb trabecular bone loss during aging. Pharmacological inhibition of Fap significantly promotes bone formation and inhibits bone resorption in wild-type mice by differentially regulating canonical Wnt and nuclear factor κB (NF-κB) pathways. Pharmacological inhibition of Fap promotes osteoblast differentiation, inhibits osteoclast differentiation, and significantly attenuates osteoporosis in ovariectomized mice. Epistasis analyses in zebrafish show that Osteolectin functions as an endogenous inhibitor of Fap to promote vertebrae mineralization. Taken together, we identify Fap as an important osteogenic suppressor and a potential drug target to treat osteoporosis.
Collapse
Affiliation(s)
- Hanjing Wei
- Institute for Regenerative Medicine, Shanghai East Hospital, Frontier Science Center for Stem Cell Research, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Yanhua Xu
- Institute for Regenerative Medicine, Shanghai East Hospital, Frontier Science Center for Stem Cell Research, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China; Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, 1239 Siping Road, Shanghai 200072, China
| | - Yibin Wang
- Institute for Regenerative Medicine, Shanghai East Hospital, Frontier Science Center for Stem Cell Research, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Liting Xu
- Institute for Regenerative Medicine, Shanghai East Hospital, Frontier Science Center for Stem Cell Research, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Chunyang Mo
- Institute for Regenerative Medicine, Shanghai East Hospital, Frontier Science Center for Stem Cell Research, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Liangzi Li
- Institute for Regenerative Medicine, Shanghai East Hospital, Frontier Science Center for Stem Cell Research, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Bo Shen
- Department of Pediatrics and Children's Research Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Yao Sun
- Department of Implantology, School and Hospital of Stomatology, Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai 200072, China
| | - Pengzhen Cheng
- Institute of Orthopedic Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Liu Yang
- Institute of Orthopedic Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Yichuan Pang
- Department of Orthopedics, Shanghai Key Laboratory of Orthopedic Implant, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200011, China
| | - An Qin
- Department of Orthopedics, Shanghai Key Laboratory of Orthopedic Implant, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200011, China
| | - Ying Cao
- Institute for Regenerative Medicine, Shanghai East Hospital, Frontier Science Center for Stem Cell Research, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Sean J Morrison
- Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Department of Pediatrics and Children's Research Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Rui Yue
- Institute for Regenerative Medicine, Shanghai East Hospital, Frontier Science Center for Stem Cell Research, Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai 200092, China.
| |
Collapse
|
5
|
Keatinge M, Tsarouchas TM, Munir T, Porter NJ, Larraz J, Gianni D, Tsai HH, Becker CG, Lyons DA, Becker T. CRISPR gRNA phenotypic screening in zebrafish reveals pro-regenerative genes in spinal cord injury. PLoS Genet 2021; 17:e1009515. [PMID: 33914736 PMCID: PMC8084196 DOI: 10.1371/journal.pgen.1009515] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 03/28/2021] [Indexed: 12/30/2022] Open
Abstract
Zebrafish exhibit robust regeneration following spinal cord injury, promoted by macrophages that control post-injury inflammation. However, the mechanistic basis of how macrophages regulate regeneration is poorly understood. To address this gap in understanding, we conducted a rapid in vivo phenotypic screen for macrophage-related genes that promote regeneration after spinal injury. We used acute injection of synthetic RNA Oligo CRISPR guide RNAs (sCrRNAs) that were pre-screened for high activity in vivo. Pre-screening of over 350 sCrRNAs allowed us to rapidly identify highly active sCrRNAs (up to half, abbreviated as haCRs) and to effectively target 30 potentially macrophage-related genes. Disruption of 10 of these genes impaired axonal regeneration following spinal cord injury. We selected 5 genes for further analysis and generated stable mutants using haCRs. Four of these mutants (tgfb1a, tgfb3, tnfa, sparc) retained the acute haCR phenotype, validating the approach. Mechanistically, tgfb1a haCR-injected and stable mutant zebrafish fail to resolve post-injury inflammation, indicated by prolonged presence of neutrophils and increased levels of il1b expression. Inhibition of Il-1β rescues the impaired axon regeneration in the tgfb1a mutant. Hence, our rapid and scalable screening approach has identified functional regulators of spinal cord regeneration, but can be applied to any biological function of interest.
Collapse
Affiliation(s)
- Marcus Keatinge
- Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | | | - Tahimina Munir
- Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - Nicola J. Porter
- Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - Juan Larraz
- Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - Davide Gianni
- Biogen, Cambridge, Massachusetts, United States of America
| | - Hui-Hsin Tsai
- Biogen, Cambridge, Massachusetts, United States of America
| | - Catherina G. Becker
- Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - David A. Lyons
- Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - Thomas Becker
- Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh, United Kingdom
| |
Collapse
|