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Yano-Sakamoto K, Kitai Y, Toriu N, Yamamoto S, Mizuta K, Saitou M, Tsukiyama T, Taniuchi I, Osato M, Yanagita M. Expression pattern of Runt-related transcription factor (RUNX) family members and the role of RUNX1 during kidney development. Biochem Biophys Res Commun 2024; 722:150155. [PMID: 38795454 DOI: 10.1016/j.bbrc.2024.150155] [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: 03/27/2024] [Revised: 05/19/2024] [Accepted: 05/21/2024] [Indexed: 05/28/2024]
Abstract
Runt-related transcription factor (RUNX) family members play critical roles in the development of multiple organs. Mammalian RUNX family members, consisting of RUNX1, RUNX2, and RUNX3, have distinct tissue-specific expression and function. In this study, we examined the spatiotemporal expression patterns of RUNX family members in developing kidneys and analyzed the role of RUNX1 during kidney development. In the developing mouse kidney, RUNX1 protein was strongly expressed in the ureteric bud (UB) tip and weakly expressed in the distal segment of the renal vesicle (RV), comma-shaped body (CSB), and S-shaped body (SSB). In contrast, RUNX2 protein was restricted to the stroma, and RUNX3 protein was only expressed in immune cells. We also analyzed the expression of RUNX family members in the cynomolgus monkey kidney. We found that expression patterns of RUNX2 and RUNX3 were conserved between rodents and primates, whereas RUNX1 was only expressed in the UB tip, not in the RV, CSB, or SSB of cynomolgus monkeys, suggesting a species differences. We further evaluated the roles of RUNX1 using two different conditional knockout mice: Runx1f/f:HoxB7-Cre and Runx1f/f:R26-CreERT2 and found no abnormalities in the kidney. Our findings showed that RUNX1, which is mainly expressed in the UB tip, is not essential for kidney development.
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Affiliation(s)
- Keiko Yano-Sakamoto
- Department of Nephrology, Graduate School of Medicine, Kyoto University, Kyoto, 606-8507, Japan.
| | - Yuichiro Kitai
- Department of Nephrology, Graduate School of Medicine, Kyoto University, Kyoto, 606-8507, Japan.
| | - Naoya Toriu
- Department of Nephrology, Graduate School of Medicine, Kyoto University, Kyoto, 606-8507, Japan; Institute for the Advanced Study of Human Biology (ASHBi), Kyoto University, Kyoto, 606-8501, Japan.
| | - Shinya Yamamoto
- Department of Nephrology, Graduate School of Medicine, Kyoto University, Kyoto, 606-8507, Japan.
| | - Ken Mizuta
- Institute for the Advanced Study of Human Biology (ASHBi), Kyoto University, Kyoto, 606-8501, Japan; Department of Anatomy and Cell Biology, Graduate School of Medicine, Kyoto University, Kyoto, 606-8501, Japan.
| | - Mitinori Saitou
- Institute for the Advanced Study of Human Biology (ASHBi), Kyoto University, Kyoto, 606-8501, Japan; Department of Anatomy and Cell Biology, Graduate School of Medicine, Kyoto University, Kyoto, 606-8501, Japan; Center for iPS Cell Research and Application (CiRA), Kyoto University, Kyoto, 606-8397, Japan.
| | - Tomoyuki Tsukiyama
- Institute for the Advanced Study of Human Biology (ASHBi), Kyoto University, Kyoto, 606-8501, Japan; Research Center for Animal Life Science, Shiga University of Medical Science, Shiga, 520-2192, Japan.
| | - Ichiro Taniuchi
- Laboratory for Transcriptional Regulation, RIKEN Center for Integrative Medical Sciences, Yokohama, 230-0045, Japan.
| | - Motomi Osato
- International Research Center for Medical Sciences, Kumamoto University, Kumamoto, 860-0811, Japan.
| | - Motoko Yanagita
- Department of Nephrology, Graduate School of Medicine, Kyoto University, Kyoto, 606-8507, Japan; Institute for the Advanced Study of Human Biology (ASHBi), Kyoto University, Kyoto, 606-8501, Japan.
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Huang B, Zeng Z, Kim S, Fausto CC, Koppitch K, Li H, Li Z, Chen X, Guo J, Zhang CC, Ma T, Medina P, Schreiber ME, Xia MW, Vonk AC, Xiang T, Patel T, Li Y, Parvez RK, Der B, Chen JH, Liu Z, Thornton ME, Grubbs BH, Diao Y, Dou Y, Gnedeva K, Ying Q, Pastor-Soler NM, Fei T, Hallows KR, Lindström NO, McMahon AP, Li Z. Long-term expandable mouse and human-induced nephron progenitor cells enable kidney organoid maturation and modeling of plasticity and disease. Cell Stem Cell 2024; 31:921-939.e17. [PMID: 38692273 PMCID: PMC11162329 DOI: 10.1016/j.stem.2024.04.002] [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: 05/11/2023] [Revised: 02/07/2024] [Accepted: 04/01/2024] [Indexed: 05/03/2024]
Abstract
Nephron progenitor cells (NPCs) self-renew and differentiate into nephrons, the functional units of the kidney. Here, manipulation of p38 and YAP activity allowed for long-term clonal expansion of primary mouse and human NPCs and induced NPCs (iNPCs) from human pluripotent stem cells (hPSCs). Molecular analyses demonstrated that cultured iNPCs closely resemble primary human NPCs. iNPCs generated nephron organoids with minimal off-target cell types and enhanced maturation of podocytes relative to published human kidney organoid protocols. Surprisingly, the NPC culture medium uncovered plasticity in human podocyte programs, enabling podocyte reprogramming to an NPC-like state. Scalability and ease of genome editing facilitated genome-wide CRISPR screening in NPC culture, uncovering genes associated with kidney development and disease. Further, NPC-directed modeling of autosomal-dominant polycystic kidney disease (ADPKD) identified a small-molecule inhibitor of cystogenesis. These findings highlight a broad application for the reported iNPC platform in the study of kidney development, disease, plasticity, and regeneration.
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Affiliation(s)
- Biao Huang
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Zipeng Zeng
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Sunghyun Kim
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Connor C Fausto
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Kari Koppitch
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Hui Li
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Zexu Li
- College of Life and Health Sciences, Northeastern University, Shenyang 110819, P.R. China
| | - Xi Chen
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Jinjin Guo
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Chennan C Zhang
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Tianyi Ma
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Pedro Medina
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Megan E Schreiber
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Mateo W Xia
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Ariel C Vonk
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Tianyuan Xiang
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Tadrushi Patel
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Yidan Li
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Riana K Parvez
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Balint Der
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Department of Urology, Faculty of Medicine, Semmelweis University, Budapest 3170, Hungary
| | - Jyun Hao Chen
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Zhenqing Liu
- Division of Stem Cell Biology Research, Department of Developmental and Stem Cell Biology, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA
| | - Matthew E Thornton
- Division of Maternal Fetal Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Brendan H Grubbs
- Division of Maternal Fetal Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Yarui Diao
- Department of Cell Biology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Yali Dou
- Department of Medicine, Department of Biochemistry and Molecular Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Ksenia Gnedeva
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Tina and Rick Caruso Department of Otolaryngology - Head and Neck Surgery, University of Southern California, Los Angeles, CA 90033, USA
| | - Qilong Ying
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Nuria M Pastor-Soler
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Teng Fei
- College of Life and Health Sciences, Northeastern University, Shenyang 110819, P.R. China
| | - Kenneth R Hallows
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Nils O Lindström
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Andrew P McMahon
- Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
| | - Zhongwei Li
- USC/UKRO Kidney Research Center, Division of Nephrology and Hypertension, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA; Department of Stem Cell Biology and Regenerative Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA.
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3
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Chambers BE, Weaver NE, Lara CM, Nguyen TK, Wingert RA. (Zebra)fishing for nephrogenesis genes. Tissue Barriers 2024; 12:2219605. [PMID: 37254823 PMCID: PMC11042071 DOI: 10.1080/21688370.2023.2219605] [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: 03/10/2023] [Accepted: 05/14/2023] [Indexed: 06/01/2023] Open
Abstract
Kidney disease is a devastating condition affecting millions of people worldwide, where over 100,000 patients in the United States alone remain waiting for a lifesaving organ transplant. Concomitant with a surge in personalized medicine, single-gene mutations, and polygenic risk alleles have been brought to the forefront as core causes of a spectrum of renal disorders. With the increasing prevalence of kidney disease, it is imperative to make substantial strides in the field of kidney genetics. Nephrons, the core functional units of the kidney, are epithelial tubules that act as gatekeepers of body homeostasis by absorbing and secreting ions, water, and small molecules to filter the blood. Each nephron contains a series of proximal and distal segments with explicit metabolic functions. The embryonic zebrafish provides an ideal platform to systematically dissect the genetic cues governing kidney development. Here, we review the use of zebrafish to discover nephrogenesis genes.
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Affiliation(s)
- Brooke E. Chambers
- Department of Biological Sciences, Center for Stem Cells and Regenerative Medicine, Center for Zebrafish Research, Boler-Parseghian Center for Rare and Neglected Diseases, Warren Center for Drug Discovery, University of Notre Dame, Notre Dame, Indiana (IN), USA
| | - Nicole E. Weaver
- Department of Biological Sciences, Center for Stem Cells and Regenerative Medicine, Center for Zebrafish Research, Boler-Parseghian Center for Rare and Neglected Diseases, Warren Center for Drug Discovery, University of Notre Dame, Notre Dame, Indiana (IN), USA
| | - Caroline M. Lara
- Department of Biological Sciences, Center for Stem Cells and Regenerative Medicine, Center for Zebrafish Research, Boler-Parseghian Center for Rare and Neglected Diseases, Warren Center for Drug Discovery, University of Notre Dame, Notre Dame, Indiana (IN), USA
| | - Thanh Khoa Nguyen
- Department of Biological Sciences, Center for Stem Cells and Regenerative Medicine, Center for Zebrafish Research, Boler-Parseghian Center for Rare and Neglected Diseases, Warren Center for Drug Discovery, University of Notre Dame, Notre Dame, Indiana (IN), USA
| | - Rebecca A. Wingert
- Department of Biological Sciences, Center for Stem Cells and Regenerative Medicine, Center for Zebrafish Research, Boler-Parseghian Center for Rare and Neglected Diseases, Warren Center for Drug Discovery, University of Notre Dame, Notre Dame, Indiana (IN), USA
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4
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Mrug M, Mrug E, Rosenblum F, Chen J, Cui X, Agarwal A, Zarjou A. Distinct developmental reprogramming footprint of macrophages during acute kidney injury across species. Am J Physiol Renal Physiol 2024; 326:F635-F641. [PMID: 38357719 PMCID: PMC11208015 DOI: 10.1152/ajprenal.00013.2024] [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: 01/11/2024] [Revised: 02/07/2024] [Accepted: 02/07/2024] [Indexed: 02/16/2024] Open
Abstract
Acute kidney injury (AKI) is a common finding in hospitalized patients, particularly those who are critically ill. The development of AKI is associated with several adverse outcomes including mortality, morbidity, progression to chronic kidney disease, and an increase in healthcare expenditure. Despite the well-established negative impact of AKI and rigorous efforts to better define, identify, and implement targeted therapies, the overall approach to the treatment of AKI continues to principally encompass supportive measures. This enduring challenge is primarily due to the heterogeneous nature of insults that activate many independent and overlapping molecular pathways. Consequently, it is evident that the identification of common mechanisms that mediate the pathogenesis of AKI, independent of etiology and engaged pathophysiological pathways, is of paramount importance and could lead to the identification of novel therapeutic targets. To better distinguish the commonly modulated mechanisms of AKI, we explored the transcriptional characteristics of human kidney biopsies from patients with acute tubular necrosis (ATN), and acute interstitial nephritis (AIN) using a NanoString inflammation panel. Subsequently, we used publicly available single-cell transcriptional resources to better interpret the generated transcriptional findings. Our findings identify robust acute kidney injury (AKI-induced) developmental reprogramming of macrophages (MΦ) with the expansion of C1Q+, CD163+ MΦ that is independent of the etiology of AKI and conserved across mouse and human species. These results would expand the current understanding of the pathophysiology of AKI and potentially offer novel targets for additional studies to enhance the translational transition of AKI research.NEW & NOTEWORTHY Our findings identify robust acute kidney injury (AKI)-induced developmental reprogramming of macrophages (MΦ) with the expansion of C1Q+, CD163+ MΦ that is independent of the etiology of AKI and conserved across mouse and human species.
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Affiliation(s)
- Michal Mrug
- Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, United States
- Birmingham Veterans Affairs Medical Center, Birmingham, Alabama, United States
| | - Elias Mrug
- Math-Science Department, Alabama School of Fine Arts, Birmingham, Alabama, United States
| | - Frida Rosenblum
- Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama, United States
| | - Jiandong Chen
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States
| | - Xiangqin Cui
- Department of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, Georgia, United States
- Department of Veterans Affairs, Atlanta Veterans Affairs Medical Center, Decatur, Georgia, United States
| | - Anupam Agarwal
- Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, United States
| | - Abolfazl Zarjou
- Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, United States
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Gao G, Zhou Z. Isthmin-1: A critical regulator of branching morphogenesis and metanephric mesenchyme condensation during early kidney development. Bioessays 2024; 46:e2300189. [PMID: 38161234 DOI: 10.1002/bies.202300189] [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: 12/15/2023] [Accepted: 12/18/2023] [Indexed: 01/03/2024]
Abstract
Isthmin-1 (Ism1) was first described to be syn-expressed with Fgf8 in Xenopus. However, its biological role has not been elucidated until recent years. Despite of accumulated evidence that Ism1 participates in angiogenesis, tumor invasion, macrophage apoptosis, and glucose metabolism, the cognate receptors for Ism1 remain largely unknown. Ism1 deficiency in mice results in renal agenesis (RA) with a transient loss of Gdnf transcription and impaired mesenchyme condensation at E11.5. Ism1 binds to and activates Integrin α8β1 to positively regulate Gdnf/Ret signaling, thus promoting mesenchyme condensation and ureteric epithelium branching morphogenesis. Here, we propose the hypothesis underlying the mechanism by which Ism1 regulates branching morphogenesis during early kidney development.
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Affiliation(s)
- Ge Gao
- Guangdong Cardiovascular Institute, Medical Research Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Southern Medical University, Guangzhou, China
- School of Biomedical Sciences, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Zhongjun Zhou
- Guangdong Cardiovascular Institute, Medical Research Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Southern Medical University, Guangzhou, China
- School of Biomedical Sciences, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
- Reproductive Medical Center, The University of Hong Kong - Shenzhen Hospital, Shenzhen, China
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6
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Stocker SD, Kinsman BJ, Farquhar WB, Gyarmati G, Peti-Peterdi J, Sved AF. Physiological Mechanisms of Dietary Salt Sensing in the Brain, Kidney, and Gastrointestinal Tract. Hypertension 2024; 81:447-455. [PMID: 37671571 PMCID: PMC10915107 DOI: 10.1161/hypertensionaha.123.19488] [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: 09/07/2023]
Abstract
Excess dietary salt (NaCl) intake is strongly correlated with cardiovascular disease and is a major contributing factor to the pathogenesis of hypertension. NaCl-sensitive hypertension is a multisystem disorder that involves renal dysfunction, vascular abnormalities, and neurogenically-mediated increases in peripheral resistance. Despite a major research focus on organ systems and these effector mechanisms causing NaCl-induced increases in arterial blood pressure, relatively less research has been directed at elucidating how NaCl is sensed by various tissues to elicit these downstream effects. The purpose of this review is to discuss how the brain, kidney, and gastrointestinal tract sense NaCl including key cell types, the role of NaCl versus osmolality, and the underlying molecular and electrochemical mechanisms.
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Affiliation(s)
- Sean D. Stocker
- Department of Neurobiology, University of Pittsburgh School of Medicine
| | - Brian J Kinsman
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital
| | | | - Georgina Gyarmati
- Department of Physiology and Neuroscience and Medicine, Zilkha Neurogenetic Institute, University of Southern California
| | - Janos Peti-Peterdi
- Department of Physiology and Neuroscience and Medicine, Zilkha Neurogenetic Institute, University of Southern California
| | - Alan F. Sved
- Department of Neuroscience, University of Pittsburgh
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Liu J, Prahl LS, Huang A, Hughes AJ. Measurement of adhesion and traction of cells at high yield (MATCHY) reveals an energetic ratchet driving nephron condensation. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.02.07.579368. [PMID: 38370771 PMCID: PMC10871361 DOI: 10.1101/2024.02.07.579368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/20/2024]
Abstract
Engineering of embryonic strategies for tissue-building has extraordinary promise for regenerative medicine. This has led to a resurgence in interest in the relationship between cell biophysical properties and morphological transitions. However, mapping gene or protein expression data to cell biophysical properties to physical morphogenesis remains challenging with current techniques. Here we present MATCHY (multiplexed adhesion and traction of cells at high yield). MATCHY advances the multiplexing and throughput capabilities of existing traction force and cell-cell adhesion assays using microfabrication and an automated computation scheme with machine learning-driven cell segmentation. Both biophysical assays are coupled with serial downstream immunofluorescence to extract cell type/signaling state information. MATCHY is especially suited to complex primary tissue-, organoid-, or biopsy-derived cell mixtures since it does not rely on a priori knowledge of cell surface markers, cell sorting, or use of lineage-specific reporter animals. We first validate MATCHY on canine kidney epithelial cells engineered for RET tyrosine kinase expression and quantify a relationship between downstream signaling and cell traction. We go on to create a biophysical atlas of primary cells dissociated from the mouse embryonic kidney and use MATCHY to identify distinct biophysical states along the nephron differentiation trajectory. Our data complement expression-level knowledge of adhesion molecule changes that accompany nephron differentiation with quantitative biophysical information. These data reveal an 'energetic ratchet' that explains spatial nephron progenitor cell condensation from the niche as they differentiate, which we validate through agent-based computational simulation. MATCHY offers automated cell biophysical characterization at >104-cell throughput, a highly enabling advance for fundamental studies and new synthetic tissue design strategies for regenerative medicine.
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Affiliation(s)
- Jiageng Liu
- Department of Bioengineering, University of Pennsylvania, Philadelphia, 19104, PA, USA
- Bioengineering Graduate Group, University of Pennsylvania, Philadelphia, 19104, PA, USA
| | - Louis S. Prahl
- Department of Bioengineering, University of Pennsylvania, Philadelphia, 19104, PA, USA
| | - Aria Huang
- Department of Bioengineering, University of Pennsylvania, Philadelphia, 19104, PA, USA
- Bioengineering Graduate Group, University of Pennsylvania, Philadelphia, 19104, PA, USA
| | - Alex J. Hughes
- Department of Bioengineering, University of Pennsylvania, Philadelphia, 19104, PA, USA
- Bioengineering Graduate Group, University of Pennsylvania, Philadelphia, 19104, PA, USA
- Department of Cell and Developmental Biology, University of Pennsylvania, Philadelphia, 19104, PA, USA
- Cell and Molecular Biology Graduate Group, University of Pennsylvania, Philadelphia, 19104, PA, USA
- Center for Soft and Living Matter, University of Pennsylvania, Philadelphia, 19104, PA, USA
- Institute for Regenerative Medicine, University of Pennsylvania, Philadelphia, 19104, PA, USA
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8
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Wang SX, Streit A. Shared features in ear and kidney development - implications for oto-renal syndromes. Dis Model Mech 2024; 17:dmm050447. [PMID: 38353121 PMCID: PMC10886756 DOI: 10.1242/dmm.050447] [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: 02/16/2024] Open
Abstract
The association between ear and kidney anomalies has long been recognized. However, little is known about the underlying mechanisms. In the last two decades, embryonic development of the inner ear and kidney has been studied extensively. Here, we describe the developmental pathways shared between both organs with particular emphasis on the genes that regulate signalling cross talk and the specification of progenitor cells and specialised cell types. We relate this to the clinical features of oto-renal syndromes and explore links to developmental mechanisms.
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Affiliation(s)
- Scarlet Xiaoyan Wang
- Centre for Craniofacial and Regenerative Biology, King's College London, London SE1 9RT, UK
| | - Andrea Streit
- Centre for Craniofacial and Regenerative Biology, King's College London, London SE1 9RT, UK
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9
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Pahuja A, Goux Corredera I, Moya-Rull D, Garreta E, Montserrat N. Engineering physiological environments to advance kidney organoid models from human pluripotent stem cells. Curr Opin Cell Biol 2024; 86:102306. [PMID: 38194750 DOI: 10.1016/j.ceb.2023.102306] [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: 06/22/2023] [Revised: 12/04/2023] [Accepted: 12/05/2023] [Indexed: 01/11/2024]
Abstract
During embryogenesis, the mammalian kidney arises because of reciprocal interactions between the ureteric bud (UB) and the metanephric mesenchyme (MM), driving UB branching and nephron induction. These morphogenetic processes involve a series of cellular rearrangements that are tightly controlled by gene regulatory networks and signaling cascades. Here, we discuss how kidney developmental studies have informed the definition of procedures to obtain kidney organoids from human pluripotent stem cells (hPSCs). Moreover, bioengineering techniques have emerged as potential solutions to externally impose controlled microenvironments for organoid generation from hPSCs. Next, we summarize some of these advances with major focus On recent works merging hPSC-derived kidney organoids (hPSC-kidney organoids) with organ-on-chip to develop robust models for drug discovery and disease modeling applications. We foresee that, in the near future, coupling of different organoid models through bioengineering approaches will help advancing to recreate organ-to-organ crosstalk to increase our understanding on kidney disease progression in the human context and search for new therapeutics.
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Affiliation(s)
- Anisha Pahuja
- Pluripotency for Organ Regeneration. Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), 08028 Barcelona, Spain
| | - Iphigénie Goux Corredera
- Pluripotency for Organ Regeneration. Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), 08028 Barcelona, Spain
| | - Daniel Moya-Rull
- Pluripotency for Organ Regeneration. Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), 08028 Barcelona, Spain
| | - Elena Garreta
- Pluripotency for Organ Regeneration. Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), 08028 Barcelona, Spain; University of Barcelona, 08028 Barcelona, Spain.
| | - Nuria Montserrat
- Pluripotency for Organ Regeneration. Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), 08028 Barcelona, Spain; University of Barcelona, 08028 Barcelona, Spain; Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina, Barcelona, Spain; Institució Catalana de Recerca i Estudis Avançats (ICREA), Barcelona, Spain.
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10
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Davis SN, Grindel SH, Viola JM, Liu GY, Liu J, Qian G, Porter CM, Hughes AJ. Nephron progenitors rhythmically alternate between renewal and differentiation phases that synchronize with kidney branching morphogenesis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.11.21.568157. [PMID: 38045273 PMCID: PMC10690271 DOI: 10.1101/2023.11.21.568157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
The mammalian kidney achieves massive parallelization of function by exponentially duplicating nephron-forming niches during development. Each niche caps a tip of the ureteric bud epithelium (the future urinary collecting duct tree) as it undergoes branching morphogenesis, while nephron progenitors within niches balance self-renewal and differentiation to early nephron cells. Nephron formation rate approximately matches branching rate over a large fraction of mouse gestation, yet the nature of this apparent pace-maker is unknown. Here we correlate spatial transcriptomics data with branching 'life-cycle' to discover rhythmically alternating signatures of nephron progenitor differentiation and renewal across Wnt, Hippo-Yap, retinoic acid (RA), and other pathways. We then find in human stem-cell derived nephron progenitor organoids that Wnt/β-catenin-induced differentiation is converted to a renewal signal when it temporally overlaps with YAP activation. Similar experiments using RA activation indicate a role in setting nephron progenitor exit from the naive state, the spatial extent of differentiation, and nephron segment bias. Together the data suggest that nephron progenitor interpretation of consistent Wnt/β-catenin differentiation signaling in the niche may be modified by rhythmic activity in ancillary pathways to set the pace of nephron formation. This would synchronize nephron formation with ureteric bud branching, which creates new sites for nephron condensation. Our data bring temporal resolution to the renewal vs. differentiation balance in the nephrogenic niche and inform new strategies to achieve self-sustaining nephron formation in synthetic human kidney tissues.
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Affiliation(s)
- Sachin N Davis
- Department of Bioengineering, University of Pennsylvania, Philadelphia, 19104, PA, USA
- Bioengineering Graduate Group, University of Pennsylvania, Philadelphia, 19104, PA, USA
| | - Samuel H Grindel
- Department of Bioengineering, University of Pennsylvania, Philadelphia, 19104, PA, USA
- Bioengineering Graduate Group, University of Pennsylvania, Philadelphia, 19104, PA, USA
| | - John M Viola
- Department of Bioengineering, University of Pennsylvania, Philadelphia, 19104, PA, USA
- Bioengineering Graduate Group, University of Pennsylvania, Philadelphia, 19104, PA, USA
| | - Grace Y Liu
- Department of Bioengineering, University of Pennsylvania, Philadelphia, 19104, PA, USA
- Bioengineering Graduate Group, University of Pennsylvania, Philadelphia, 19104, PA, USA
| | - Jiageng Liu
- Department of Bioengineering, University of Pennsylvania, Philadelphia, 19104, PA, USA
- Bioengineering Graduate Group, University of Pennsylvania, Philadelphia, 19104, PA, USA
| | - Grace Qian
- Department of Bioengineering, University of Pennsylvania, Philadelphia, 19104, PA, USA
- Bioengineering Graduate Group, University of Pennsylvania, Philadelphia, 19104, PA, USA
| | - Catherine M Porter
- Department of Bioengineering, University of Pennsylvania, Philadelphia, 19104, PA, USA
- Bioengineering Graduate Group, University of Pennsylvania, Philadelphia, 19104, PA, USA
| | - Alex J Hughes
- Department of Bioengineering, University of Pennsylvania, Philadelphia, 19104, PA, USA
- Bioengineering Graduate Group, University of Pennsylvania, Philadelphia, 19104, PA, USA
- Cell and Molecular Biology Graduate Group, University of Pennsylvania, Philadelphia, 19104, PA, USA
- Department of Cell and Developmental Biology, University of Pennsylvania, Philadelphia, 19104, PA, USA
- Center for Soft and Living Matter, University of Pennsylvania, Philadelphia, 19104, PA, USA
- Institute for Regenerative Medicine, University of Pennsylvania, Philadelphia, 19104, PA, USA
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11
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Mederacke M, Conrad L, Doumpas N, Vetter R, Iber D. Geometric effects position renal vesicles during kidney development. Cell Rep 2023; 42:113526. [PMID: 38060445 DOI: 10.1016/j.celrep.2023.113526] [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: 08/30/2022] [Revised: 07/25/2023] [Accepted: 11/15/2023] [Indexed: 12/30/2023] Open
Abstract
During kidney development, reciprocal signaling between the epithelium and the mesenchyme coordinates nephrogenesis with branching morphogenesis of the collecting ducts. The mechanism that positions the renal vesicles, and thus the nephrons, relative to the branching ureteric buds has remained elusive. By combining computational modeling and experiments, we show that geometric effects concentrate the key regulator, WNT9b, at the junctions between parent and daughter branches where renal vesicles emerge, even when uniformly expressed in the ureteric epithelium. This curvature effect might be a general paradigm to create non-uniform signaling in development.
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Affiliation(s)
- Malte Mederacke
- Department of Biosystems Science and Engineering, ETH Zürich, Schanzenstrasse 44, 4056 Basel, Switzerland; Swiss Institute of Bioinformatics, Mattenstrasse 26, 4058 Basel, Switzerland
| | - Lisa Conrad
- Department of Biosystems Science and Engineering, ETH Zürich, Schanzenstrasse 44, 4056 Basel, Switzerland; Swiss Institute of Bioinformatics, Mattenstrasse 26, 4058 Basel, Switzerland; Department for BioMedical Research (DBMR), University of Bern, Murtenstrasse 35, 3008 Bern, Switzerland
| | - Nikolaos Doumpas
- Department of Biosystems Science and Engineering, ETH Zürich, Schanzenstrasse 44, 4056 Basel, Switzerland; Swiss Institute of Bioinformatics, Mattenstrasse 26, 4058 Basel, Switzerland
| | - Roman Vetter
- Department of Biosystems Science and Engineering, ETH Zürich, Schanzenstrasse 44, 4056 Basel, Switzerland; Swiss Institute of Bioinformatics, Mattenstrasse 26, 4058 Basel, Switzerland
| | - Dagmar Iber
- Department of Biosystems Science and Engineering, ETH Zürich, Schanzenstrasse 44, 4056 Basel, Switzerland; Swiss Institute of Bioinformatics, Mattenstrasse 26, 4058 Basel, Switzerland.
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12
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Paul A, Lawlor A, Cunanan K, Gaheer PS, Kalra A, Napoleone M, Lanktree MB, Bridgewater D. The Good and the Bad of SHROOM3 in Kidney Development and Disease: A Narrative Review. Can J Kidney Health Dis 2023; 10:20543581231212038. [PMID: 38107159 PMCID: PMC10722951 DOI: 10.1177/20543581231212038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 10/10/2023] [Indexed: 12/19/2023] Open
Abstract
Purpose of review Multiple large-scale genome-wide association meta-analyses studies have reliably identified an association between genetic variants within the SHROOM3 gene and chronic kidney disease. This association extends to alterations in known markers of kidney disease including baseline estimated glomerular filtration rate, urinary albumin-to-creatinine ratio, and blood urea nitrogen. Yet, an understanding of the molecular mechanisms behind the association of SHROOM3 and kidney disease remains poorly communicated. We conducted a narrative review to summarize the current state of literature regarding the genetic and molecular relationships between SHROOM3 and kidney development and disease. Sources of information PubMed, PubMed Central, SCOPUS, and Web of Science databases, as well as review of references from relevant studies and independent Google Scholar searches to fill gaps in knowledge. Methods A comprehensive narrative review was conducted to explore the molecular mechanisms underlying SHROOM3 and kidney development, function, and disease. Key findings SHROOM3 is a unique protein, as it is the only member of the SHROOM group of proteins that regulates actin dynamics through apical constriction and apicobasal cell elongation. It holds a dichotomous role in the kidney, as subtle alterations in SHROOM3 expression and function can be both pathological and protective toward kidney disease. Genome-wide association studies have identified genetic variants near the transcription start site of the SHROOM3 gene associated with chronic kidney disease. SHROOM3 also appears to protect the glomerular structure and function in conditions such as focal segmental glomerulosclerosis. However, little is known about the exact mechanisms by which this protection occurs, which is why SHROOM3 binding partners remain an opportunity for further investigation. Limitations Our search was limited to English articles. No structured assessment of study quality was performed, and selection bias of included articles may have occurred. As we discuss future directions and opportunities, this narrative review reflects the academic views of the authors.
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Affiliation(s)
- Amy Paul
- Department of Pathology and Molecular Medicine, Faculty of Health Sciences, McMaster University, Hamilton, ON, Canada
| | - Allison Lawlor
- Department of Pathology and Molecular Medicine, Faculty of Health Sciences, McMaster University, Hamilton, ON, Canada
| | - Kristina Cunanan
- Department of Pathology and Molecular Medicine, Faculty of Health Sciences, McMaster University, Hamilton, ON, Canada
| | - Pukhraj S. Gaheer
- Department of Health Research Methods, Evidence, and Impact, Faculty of Health Sciences, McMaster University, Hamilton, ON, Canada
- Population Health Research Institute, Hamilton, ON, Canada
| | - Aditya Kalra
- Department of Pathology and Molecular Medicine, Faculty of Health Sciences, McMaster University, Hamilton, ON, Canada
| | - Melody Napoleone
- Department of Pathology and Molecular Medicine, Faculty of Health Sciences, McMaster University, Hamilton, ON, Canada
| | - Matthew B. Lanktree
- Department of Health Research Methods, Evidence, and Impact, Faculty of Health Sciences, McMaster University, Hamilton, ON, Canada
- Population Health Research Institute, Hamilton, ON, Canada
- Division of Nephrology, Department of Medicine, McMaster University, Hamilton, ON, Canada
| | - Darren Bridgewater
- Department of Pathology and Molecular Medicine, Faculty of Health Sciences, McMaster University, Hamilton, ON, Canada
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13
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Brumbaugh J, Aguado BA, Lysaght T, Goldstein LSB. Human fetal tissue is critical for biomedical research. Stem Cell Reports 2023; 18:2300-2312. [PMID: 37977142 PMCID: PMC10724055 DOI: 10.1016/j.stemcr.2023.10.008] [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: 06/28/2023] [Revised: 10/09/2023] [Accepted: 10/10/2023] [Indexed: 11/19/2023] Open
Abstract
Human fetal tissue and cells derived from fetal tissue are crucial for biomedical research. Fetal tissues and cells are used to study both normal development and developmental disorders. They are broadly applied in vaccine development and production. Further, research using cells from fetal tissue is instrumental for studying many infectious diseases, including a broad range of viruses. These widespread applications underscore the value of fetal tissue research and reflect an important point: cells derived from fetal tissues have capabilities that cells from other sources do not. In many cases, increased functionality of cells derived from fetal tissues arises from increased proliferative capacity, ability to survive in culture, and developmental potential that is attenuated in adult tissues. This review highlights important, representative applications of fetal tissue for science and medicine.
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Affiliation(s)
- Justin Brumbaugh
- Department of Molecular, Cellular, and Developmental Biology, University of Colorado Boulder, Boulder, CO, USA; University of Colorado Cancer Center, Anschutz Medical Campus, Aurora, CO, USA; Charles C. Gates Center for Regenerative Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA.
| | - Brian A Aguado
- Department of Bioengineering, University of California, San Diego, La Jolla, CA, USA; Sanford Consortium for Regenerative Medicine, La Jolla, CA, USA
| | - Tamra Lysaght
- Centre for Biomedical Ethics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Lawrence S B Goldstein
- Sanford Consortium for Regenerative Medicine, La Jolla, CA, USA; Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, USA; Department of Neurosciences, University of California, San Diego, La Jolla, CA, USA
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14
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Stevenson MJ, Phanor SK, Patel U, Gisselbrecht SS, Bulyk ML, O'Brien LL. Altered binding affinity of SIX1-Q177R correlates with enhanced WNT5A and WNT pathway effector expression in Wilms tumor. Dis Model Mech 2023; 16:dmm050208. [PMID: 37815464 PMCID: PMC10668032 DOI: 10.1242/dmm.050208] [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: 03/24/2023] [Accepted: 09/27/2023] [Indexed: 10/11/2023] Open
Abstract
Wilms tumors present as an amalgam of varying proportions of tissues located within the developing kidney, one being the nephrogenic blastema comprising multipotent nephron progenitor cells (NPCs). The recurring missense mutation Q177R in NPC transcription factors SIX1 and SIX2 is most correlated with tumors of blastemal histology and is significantly associated with relapse. Yet, the transcriptional regulatory consequences of SIX1/2-Q177R that might promote tumor progression and recurrence have not been investigated extensively. Utilizing multiple Wilms tumor transcriptomic datasets, we identified upregulation of the gene encoding non-canonical WNT ligand WNT5A in addition to other WNT pathway effectors in SIX1/2-Q177R mutant tumors. SIX1 ChIP-seq datasets from Wilms tumors revealed shared binding sites for SIX1/SIX1-Q177R within a promoter of WNT5A and at putative distal cis-regulatory elements (CREs). We demonstrate colocalization of SIX1 and WNT5A in Wilms tumor tissue and utilize in vitro assays that support SIX1 and SIX1-Q177R activation of expression from the WNT5A CREs, as well as enhanced binding affinity within the WNT5A promoter that may promote the differential expression of WNT5A and other WNT pathway effectors associated with SIX1-Q177R tumors.
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Affiliation(s)
- Matthew J. Stevenson
- Department of Cell Biology and Physiology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Sabrina K. Phanor
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Urvi Patel
- Department of Cell Biology and Physiology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Stephen S. Gisselbrecht
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Martha L. Bulyk
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA
- Department of Pathology, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA
| | - Lori L. O'Brien
- Department of Cell Biology and Physiology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
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15
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Xu J, Zhou X, Zhang T, Zhang B, Xu PX. Smarca4 deficiency induces Pttg1 oncogene upregulation and hyperproliferation of tubular and interstitial cells during kidney development. Front Cell Dev Biol 2023; 11:1233317. [PMID: 37727504 PMCID: PMC10506413 DOI: 10.3389/fcell.2023.1233317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 08/17/2023] [Indexed: 09/21/2023] Open
Abstract
Kidney formation and nephrogenesis are controlled by precise spatiotemporal gene expression programs, which are coordinately regulated by cell-cycle, cell type-specific transcription factors and epigenetic/chromatin regulators. However, the roles of epigenetic/chromatin regulators in kidney development and disease remain poorly understood. In this study, we investigated the impact of deleting the chromatin remodeling factor Smarca4 (Brg1), a human Wilms tumor-associated gene, in Wnt4-expressing cells. Smarca4 deficiency led to severe tubular defects and a shortened medulla. Through unbiased single-cell RNA sequencing analyses, we identified multiple types of Wnt4 Cre-labeled interstitial cells, along with nephron-related cells. Smarca4 deficiency increased interstitial cells but markedly reduced tubular cells, resulting in cells with mixed identity and elevated expression of cell-cycle regulators and genes associated with extracellular matrix and epithelial-to-mesenchymal transition/fibrosis. We found that Smarca4 loss induced a significant upregulation of the oncogene Pttg1 and hyperproliferation of Wnt4 Cre-labeled cells. These changes in the cellular state could hinder the cellular transition into characteristic tubular structures, eventually leading to fibrosis. In conclusion, our findings shed light on novel cell types and genes associated with Wnt4 Cre-labeled cells and highlight the critical role of Smarca4 in regulating tubular cell differentiation and the expression of the cancer-causing gene Pttg1 in the kidney. These findings may provide valuable insights into potential therapeutic strategies for renal cell carcinoma resulting from SMARCA4 deficiency.
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Affiliation(s)
- Jinshu Xu
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Xianxiao Zhou
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, United States
- Mount Sinai Center for Transformative Disease Modeling, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Ting Zhang
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Bin Zhang
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, United States
- Mount Sinai Center for Transformative Disease Modeling, Icahn School of Medicine at Mount Sinai, New York, NY, United States
- Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Pin-Xian Xu
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, United States
- Department of Cell, Developmental and Regenerative Biology, Icahn School of Medicine at Mount Sinai, New York, NY, United States
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16
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Nguyen L, Thewes L, Westerhoff M, Wruck W, Reichert AS, Berndt C, Adjaye J. JNK Signalling Regulates Self-Renewal of Proliferative Urine-Derived Renal Progenitor Cells via Inhibition of Ferroptosis. Cells 2023; 12:2197. [PMID: 37681928 PMCID: PMC10486975 DOI: 10.3390/cells12172197] [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: 08/25/2023] [Accepted: 08/31/2023] [Indexed: 09/09/2023] Open
Abstract
With a global increase in chronic kidney disease patients, alternatives to dialysis and organ transplantation are needed. Stem cell-based therapies could be one possibility to treat chronic kidney disease. Here, we used multipotent urine-derived renal progenitor cells (UdRPCs) to study nephrogenesis. UdRPCs treated with the JNK inhibitor-AEG3482 displayed decreased proliferation and downregulated transcription of cell cycle-associated genes as well as the kidney progenitor markers-SIX2, SALL1 and VCAM1. In addition, levels of activated SMAD2/3, which is associated with the maintenance of self-renewal in UdRPCs, were decreased. JNK inhibition resulted in less efficient oxidative phosphorylation and more lipid peroxidation via ferroptosis, an iron-dependent non-apoptotic cell death pathway linked to various forms of kidney disease. Our study is the first to describe the importance of JNK signalling as a link between maintenance of self-renewal and protection against ferroptosis in SIX2-positive renal progenitor cells.
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Affiliation(s)
- Lisa Nguyen
- Institute of Stem Cell Research and Regenerative Medicine, University Hospital Düsseldorf, Medical Faculty, Heinrich-Heine University Düsseldorf, 40225 Düsseldorf, Germany; (L.N.); (W.W.)
| | - Leonie Thewes
- Department of Neurology, University Hospital Düsseldorf, Medical Faculty, Heinrich-Heine University Düsseldorf, 40225 Düsseldorf, Germany; (L.T.); (C.B.)
| | - Michelle Westerhoff
- Institute of Biochemistry and Molecular Biology I, University Hospital Düsseldorf, Medical Faculty, Heinrich-Heine University Düsseldorf, 40225 Düsseldorf, Germany; (M.W.); (A.S.R.)
| | - Wasco Wruck
- Institute of Stem Cell Research and Regenerative Medicine, University Hospital Düsseldorf, Medical Faculty, Heinrich-Heine University Düsseldorf, 40225 Düsseldorf, Germany; (L.N.); (W.W.)
| | - Andreas S. Reichert
- Institute of Biochemistry and Molecular Biology I, University Hospital Düsseldorf, Medical Faculty, Heinrich-Heine University Düsseldorf, 40225 Düsseldorf, Germany; (M.W.); (A.S.R.)
| | - Carsten Berndt
- Department of Neurology, University Hospital Düsseldorf, Medical Faculty, Heinrich-Heine University Düsseldorf, 40225 Düsseldorf, Germany; (L.T.); (C.B.)
| | - James Adjaye
- Institute of Stem Cell Research and Regenerative Medicine, University Hospital Düsseldorf, Medical Faculty, Heinrich-Heine University Düsseldorf, 40225 Düsseldorf, Germany; (L.N.); (W.W.)
- EGA Institute for Women’s Health, Zayed Centre for Research into Rare Diseases in Children (ZCR), University College London (UCL), 20 Guilford Street, London WC1N 1DZ, UK
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17
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Elshani M, Um IH, Leung S, Reynolds PA, Chapman A, Kudsy M, Harrison DJ. Transcription Factor NFE2L1 Decreases in Glomerulonephropathies after Podocyte Damage. Cells 2023; 12:2165. [PMID: 37681897 PMCID: PMC10487238 DOI: 10.3390/cells12172165] [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: 05/19/2023] [Revised: 08/24/2023] [Accepted: 08/26/2023] [Indexed: 09/09/2023] Open
Abstract
Podocyte cellular injury and detachment from glomerular capillaries constitute a critical factor contributing to kidney disease. Notably, transcription factors are instrumental in maintaining podocyte differentiation and homeostasis. This study explores the hitherto uninvestigated expression of Nuclear Factor Erythroid 2-related Factor 1 (NFE2L1) in podocytes. We evaluated the podocyte expression of NFE2L1, Nuclear Factor Erythroid 2-related Factor 2 (NFE2L2), and NAD(P)H:quinone Oxidoreductase (NQO1) in 127 human glomerular disease biopsies using multiplexed immunofluorescence and image analysis. We found that both NFE2L1 and NQO1 expressions were significantly diminished across all observed renal diseases. Furthermore, we exposed human immortalized podocytes and ex vivo kidney slices to Puromycin Aminonucleoside (PAN) and characterized the NFE2L1 protein isoform expression. PAN treatment led to a reduction in the nuclear expression of NFE2L1 in ex vivo kidney slices and podocytes.
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Affiliation(s)
- Mustafa Elshani
- School of Medicine, University of St Andrews, St Andrews KY16 9TF, UK (D.J.H.)
- Pathology, Laboratory Medicine, Royal Infirmary of Edinburgh, Little France, Edinburgh EH16 6NA, UK
- NuCana plc, 3 Lochside Way, Edinburgh EH12 9DT, UK
| | - In Hwa Um
- School of Medicine, University of St Andrews, St Andrews KY16 9TF, UK (D.J.H.)
| | - Steve Leung
- Urology Department, Western General Hospital, Edinburgh EH4 2XU, UK
| | - Paul A. Reynolds
- School of Medicine, University of St Andrews, St Andrews KY16 9TF, UK (D.J.H.)
| | - Alex Chapman
- Urology Department, Victoria Hospital, Hayfield Road, Kirkcaldy KY2 5AH, UK
| | - Mary Kudsy
- School of Medicine, University of St Andrews, St Andrews KY16 9TF, UK (D.J.H.)
| | - David J. Harrison
- School of Medicine, University of St Andrews, St Andrews KY16 9TF, UK (D.J.H.)
- Pathology, Laboratory Medicine, Royal Infirmary of Edinburgh, Little France, Edinburgh EH16 6NA, UK
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18
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Al-Marsoummi S, Mehus AA, Shrestha S, Rice R, Rossow B, Somji S, Garrett SH, Sens DA. Proteasomes Are Critical for Maintenance of CD133+CD24+ Kidney Progenitor Cells. Int J Mol Sci 2023; 24:13303. [PMID: 37686107 PMCID: PMC10487892 DOI: 10.3390/ijms241713303] [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: 08/02/2023] [Revised: 08/19/2023] [Accepted: 08/25/2023] [Indexed: 09/10/2023] Open
Abstract
Kidney progenitor cells, although rare and dispersed, play a key role in the repair of renal tubules after acute kidney damage. However, understanding these cells has been challenging due to the limited access to primary renal tissues and the absence of immortalized cells to model kidney progenitors. Previously, our laboratory utilized the renal proximal tubular epithelial cell line, RPTEC/TERT1, and the flow cytometry technique to sort and establish a kidney progenitor cell model called Human Renal Tubular Precursor TERT (HRTPT) which expresses CD133 and CD24 and exhibits the characteristics of kidney progenitors, such as self-renewal capacity and multi-potential differentiation. In addition, a separate cell line was established, named Human Renal Epithelial Cell 24 TERT (HREC24T), which lacks CD133 expression and shows no progenitor features. To further characterize HRTPT CD133+CD24+ progenitor cells, we performed proteomic profiling which showed high proteasomal expression in HRTPT kidney progenitor cells. RT-qPCR, Western blot, and flow cytometry analysis showed that HRTPT cells possess higher proteasomal expression and activity compared to HREC24T non-progenitor cells. Importantly, inhibition of the proteasomes with bortezomib reduced the expression of progenitor markers and obliterated the potential for self-renewal and differentiation of HRTPT progenitor cells. In conclusion, proteasomes are critical in preserving progenitor markers expression and self-renewal capacity in HRTPT kidney progenitors.
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Affiliation(s)
- Sarmad Al-Marsoummi
- Department of Pathology, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, ND 58202, USA
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19
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Nishinakamura R. Advances and challenges toward developing kidney organoids for clinical applications. Cell Stem Cell 2023; 30:1017-1027. [PMID: 37541208 DOI: 10.1016/j.stem.2023.07.011] [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: 05/27/2023] [Revised: 07/12/2023] [Accepted: 07/12/2023] [Indexed: 08/06/2023]
Abstract
Kidney organoids have enabled modeling of human development and disease. While methods of generating the nephron lineage are well established, new protocols to induce another lineage, the ureteric bud/collecting duct, have been reported in the past 5 years. Many reports have described modeling of various hereditary kidney diseases, with polycystic kidney disease serving as the archetypal disease, by using patient-derived or genome-edited kidney organoids. The generation of more organotypic kidneys is also becoming feasible. In this review, I also discuss the significant challenges for more sophisticated disease modeling and for realizing the ambitious goal of generating transplantable synthetic kidneys.
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Affiliation(s)
- Ryuichi Nishinakamura
- Department of Kidney Development, Institute of Molecular Embryology and Genetics, Kumamoto University, Kumamoto 860-0811, Japan.
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20
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Schierbaum LM, Schneider S, Buerger F, Halawi AA, Seltzsam S, Wang C, Zheng B, Wu CHW, Dai R, Connaughton DM, Salmanullah D, Nakayama M, Mann N, Shril S, Hildebrandt F. Prioritization of Monogenic Congenital Anomalies of the Kidney and Urinary Tract Candidate Genes with Existing Single-Cell Transcriptomics Data of the Human Fetal Kidney. Nephron Clin Pract 2023; 147:685-692. [PMID: 37499630 PMCID: PMC11018365 DOI: 10.1159/000531770] [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: 01/04/2023] [Accepted: 06/05/2023] [Indexed: 07/29/2023] Open
Abstract
INTRODUCTION Congenital anomalies of the kidney and urinary tract (CAKUT) are the most common cause of chronic kidney disease in the first 3 decades of life. Over 40 genes have been identified as causative for isolated human CAKUT. However, many genes remain unknown, and the prioritization of potential CAKUT candidate genes is challenging. To develop an independent approach to prioritize CAKUT candidate genes, we hypothesized that monogenic CAKUT genes are most likely co-expressed along a temporal axis during kidney development and that genes with coinciding high expression may represent strong novel CAKUT candidate genes. METHODS We analyzed single-cell mRNA (sc-mRNA) transcriptomics data of human fetal kidney for temporal sc-mRNA co-expression of 40 known CAKUT genes. A maximum of high expression in consecutive timepoints of kidney development was found for four of the 40 genes (EYA1, SIX1, SIX2, and ITGA8) in nephron progenitor cells a, b, c, d (NPCa-d). We concluded that NPCa-d are relevant for CAKUT pathogenesis and intersected two lists of CAKUT candidate genes resulting from unbiased whole-exome sequencing (WES) with the 100 highest expressed genes in NPCa-d. RESULTS Intersection of the 100 highest expressed genes in NPCa-d with WES-derived CAKUT candidate genes identified an overlap with the candidate genes KIF19, TRIM36, USP35, CHTF18, in each of which a biallelic variant was detected in different families with CAKUT. CONCLUSION Sc-mRNA expression data of human fetal kidney can be utilized to prioritize WES-derived CAKUT candidate genes. KIF19, TRIM36, USP35, and CHTF18 may represent strong novel candidate genes for CAKUT.
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Affiliation(s)
- Luca M Schierbaum
- Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA,
| | - Sophia Schneider
- Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Florian Buerger
- Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Abdul Aziz Halawi
- Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Steve Seltzsam
- Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Chunyan Wang
- Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Bixia Zheng
- Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Chen-Han Wilfried Wu
- Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
- Department of Urology and Genetics, Case Western Reserve University and University Hospitals, Cleveland, Ohio, USA
| | - Rufeng Dai
- Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Dervla M Connaughton
- Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Daanya Salmanullah
- Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Makiko Nakayama
- Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Nina Mann
- Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Shirlee Shril
- Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Friedhelm Hildebrandt
- Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
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21
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Treacy NJ, Clerkin S, Davis JL, Kennedy C, Miller AF, Saiani A, Wychowaniec JK, Brougham DF, Crean J. Growth and differentiation of human induced pluripotent stem cell (hiPSC)-derived kidney organoids using fully synthetic peptide hydrogels. Bioact Mater 2023; 21:142-156. [PMID: 36093324 PMCID: PMC9420433 DOI: 10.1016/j.bioactmat.2022.08.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 06/27/2022] [Accepted: 08/01/2022] [Indexed: 11/15/2022] Open
Abstract
Human induced pluripotent stem cell (hiPSC)-derived kidney organoids have prospective applications ranging from basic disease modelling to personalised medicine. However, there remains a necessity to refine the biophysical and biochemical parameters that govern kidney organoid formation. Differentiation within fully-controllable and physiologically relevant 3D growth environments will be critical to improving organoid reproducibility and maturation. Here, we matured hiPSC-derived kidney organoids within fully synthetic self-assembling peptide hydrogels (SAPHs) of variable stiffness (storage modulus, G'). The resulting organoids contained complex structures comparable to those differentiated within the animal-derived matrix, Matrigel. Single-cell RNA sequencing (scRNA-seq) was then used to compare organoids matured within SAPHs to those grown within Matrigel or at the air-liquid interface. A total of 13,179 cells were analysed, revealing 14 distinct clusters. Organoid compositional analysis revealed a larger proportion of nephron cell types within Transwell-derived organoids, while SAPH-derived organoids were enriched for stromal-associated cell populations. Notably, differentiation within a higher G' SAPH generated podocytes with more mature gene expression profiles. Additionally, maturation within a 3D microenvironment significantly reduced the derivation of off-target cell types, which are a known limitation of current kidney organoid protocols. This work demonstrates the utility of synthetic peptide-based hydrogels with a defined stiffness, as a minimally complex microenvironment for the selected differentiation of kidney organoids.
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Affiliation(s)
- Niall J Treacy
- Diabetes Complications Research Centre, University College Dublin (UCD) Conway Institute of Biomolecular and Biomedical Research and Belfield, Dublin 4, Ireland.,UCD School of Biomolecular and Biomedical Science, Belfield, Dublin 4, Ireland
| | - Shane Clerkin
- Diabetes Complications Research Centre, University College Dublin (UCD) Conway Institute of Biomolecular and Biomedical Research and Belfield, Dublin 4, Ireland.,UCD School of Biomolecular and Biomedical Science, Belfield, Dublin 4, Ireland
| | - Jessica L Davis
- Diabetes Complications Research Centre, University College Dublin (UCD) Conway Institute of Biomolecular and Biomedical Research and Belfield, Dublin 4, Ireland.,UCD School of Biomolecular and Biomedical Science, Belfield, Dublin 4, Ireland
| | - Ciarán Kennedy
- Diabetes Complications Research Centre, University College Dublin (UCD) Conway Institute of Biomolecular and Biomedical Research and Belfield, Dublin 4, Ireland.,UCD School of Biomolecular and Biomedical Science, Belfield, Dublin 4, Ireland
| | - Aline F Miller
- Department of Materials & Manchester Institute of Biotechnology (MIB), School of Natural Sciences, Faculty of Science and Engineering, The University of Manchester, UK
| | - Alberto Saiani
- Department of Materials & Manchester Institute of Biotechnology (MIB), School of Natural Sciences, Faculty of Science and Engineering, The University of Manchester, UK
| | - Jacek K Wychowaniec
- UCD School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
| | - Dermot F Brougham
- UCD School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
| | - John Crean
- Diabetes Complications Research Centre, University College Dublin (UCD) Conway Institute of Biomolecular and Biomedical Research and Belfield, Dublin 4, Ireland.,UCD School of Biomolecular and Biomedical Science, Belfield, Dublin 4, Ireland
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22
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Abstract
Mg2+ is essential for many cellular and physiological processes, including muscle contraction, neuronal activity, and metabolism. Consequently, the blood Mg2+ concentration is tightly regulated by balanced intestinal Mg2+ absorption, renal Mg2+ excretion, and Mg2+ storage in bone and soft tissues. In recent years, the development of novel transgenic animal models and identification of Mendelian disorders has advanced our current insight in the molecular mechanisms of Mg2+ reabsorption in the kidney. In the proximal tubule, Mg2+ reabsorption is dependent on paracellular permeability by claudin-2/12. In the thick ascending limb of Henle's loop, the claudin-16/19 complex provides a cation-selective pore for paracellular Mg2+ reabsorption. The paracellular Mg2+ reabsorption in this segment is regulated by the Ca2+-sensing receptor, parathyroid hormone, and mechanistic target of rapamycin (mTOR) signaling. In the distal convoluted tubule, the fine tuning of Mg2+ reabsorption takes place by transcellular Mg2+ reabsorption via transient receptor potential melastatin-like types 6 and 7 (TRPM6/TRPM7) divalent cation channels. Activity of TRPM6/TRPM7 is dependent on hormonal regulation, metabolic activity, and interacting proteins. Basolateral Mg2+ extrusion is still poorly understood but is probably dependent on the Na+ gradient. Cyclin M2 and SLC41A3 are the main candidates to act as Na+/Mg2+ exchangers. Consequently, disturbances of basolateral Na+/K+ transport indirectly result in impaired renal Mg2+ reabsorption in the distal convoluted tubule. Altogether, this review aims to provide an overview of the molecular mechanisms of Mg2+ reabsorption in the kidney, specifically focusing on transgenic mouse models and human hereditary diseases.
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Affiliation(s)
- Jeroen H F de Baaij
- Department of Physiology, Radboud University Medical Center, Nijmegen, The Netherlands
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23
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Drummond BE, Ercanbrack WS, Wingert RA. Modeling Podocyte Ontogeny and Podocytopathies with the Zebrafish. J Dev Biol 2023; 11:jdb11010009. [PMID: 36810461 PMCID: PMC9944608 DOI: 10.3390/jdb11010009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 02/11/2023] [Accepted: 02/17/2023] [Indexed: 02/22/2023] Open
Abstract
Podocytes are exquisitely fashioned kidney cells that serve an essential role in the process of blood filtration. Congenital malformation or damage to podocytes has dire consequences and initiates a cascade of pathological changes leading to renal disease states known as podocytopathies. In addition, animal models have been integral to discovering the molecular pathways that direct the development of podocytes. In this review, we explore how researchers have used the zebrafish to illuminate new insights about the processes of podocyte ontogeny, model podocytopathies, and create opportunities to discover future therapies.
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24
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The "3Ds" of Growing Kidney Organoids: Advances in Nephron Development, Disease Modeling, and Drug Screening. Cells 2023; 12:cells12040549. [PMID: 36831216 PMCID: PMC9954122 DOI: 10.3390/cells12040549] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 02/03/2023] [Accepted: 02/07/2023] [Indexed: 02/11/2023] Open
Abstract
A kidney organoid is a three-dimensional (3D) cellular aggregate grown from stem cells in vitro that undergoes self-organization, recapitulating aspects of normal renal development to produce nephron structures that resemble the native kidney organ. These miniature kidney-like structures can also be derived from primary patient cells and thus provide simplified context to observe how mutations in kidney-disease-associated genes affect organogenesis and physiological function. In the past several years, advances in kidney organoid technologies have achieved the formation of renal organoids with enhanced numbers of specialized cell types, less heterogeneity, and more architectural complexity. Microfluidic bioreactor culture devices, single-cell transcriptomics, and bioinformatic analyses have accelerated the development of more sophisticated renal organoids and tailored them to become increasingly amenable to high-throughput experimentation. However, many significant challenges remain in realizing the use of kidney organoids for renal replacement therapies. This review presents an overview of the renal organoid field and selected highlights of recent cutting-edge kidney organoid research with a focus on embryonic development, modeling renal disease, and personalized drug screening.
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25
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Zhang L, Chen Z, Gao Q, Liu G, Zheng J, Ding F. Preterm birth leads to a decreased number of differentiated podocytes and accelerated podocyte differentiation. Front Cell Dev Biol 2023; 11:1142929. [PMID: 36936687 PMCID: PMC10018169 DOI: 10.3389/fcell.2023.1142929] [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: 01/13/2023] [Accepted: 02/20/2023] [Indexed: 03/06/2023] Open
Abstract
Preterm birth was previously identified as a high-risk factor for the long-term development of chronic kidney disease. However, the detailed pattern of podocyte (PD) changes caused by preterm birth and the potential mechanism underlying this process have not been well clarified. In present study, a rat model of preterm birth was established by delivery of pups 2 days early and podometric methods were applied to identify the changes in PDs number caused by preterm birth. In addition, single-cell RNA sequencing (scRNA-seq) and subsequent bioinformatic analysis were performed in the preterm rat kidney to explore the possible mechanism caused by preterm birth. As results, when the kidney completely finished nephrogenesis at the age of 3 weeks, a reduction in the total number of differentiated PDs in kidney sections was detected. In addition, 20 distinct clusters and 12 different cell types were identified after scRNA-seq in preterm rats (postnatal day 2) and full-term rats (postnatal day 0). The numbers of PDs and most types of inherent kidney cells were decreased in the preterm birth model. In addition, 177 genes were upregulated while 82 genes were downregulated in the PDs of full-term rats compared with those of preterm rats. Further functional GO analysis revealed that ribosome-related genes were enriched in PDs from full-term rats, and kidney development-related genes were enriched in PDs from preterm rats. Moreover, known PD-specific and PD precursor genes were highly expressed in PDs from preterm rats, and pseudotemporal analysis showed that PDs were present earlier in preterm rats than in full-term rats. In conclusion, the present study showed that preterm birth could cause a reduction in the number of differentiated PDs and accelerate the differentiation of PDs.
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Affiliation(s)
- Lulu Zhang
- Department of Neonatology, Tianjin Central Hospital of Obstetrics and Gynecology, Tianjin, China
- Tianjin Key Laboratory of Human Development and Reproductive Regulation, Tianjin, China
- Department of Neonatology, Nankai University Maternity Hospital, Tianjin, China
| | - Zhihui Chen
- Department of Neonatology, Tianjin Central Hospital of Obstetrics and Gynecology, Tianjin, China
- Tianjin Key Laboratory of Human Development and Reproductive Regulation, Tianjin, China
- Department of Neonatology, Nankai University Maternity Hospital, Tianjin, China
| | - Qi Gao
- Department of Neonatology, Tianjin Central Hospital of Obstetrics and Gynecology, Tianjin, China
- Tianjin Key Laboratory of Human Development and Reproductive Regulation, Tianjin, China
- Department of Neonatology, Nankai University Maternity Hospital, Tianjin, China
| | - Ge Liu
- Department of Neonatology, Tianjin Central Hospital of Obstetrics and Gynecology, Tianjin, China
- Tianjin Key Laboratory of Human Development and Reproductive Regulation, Tianjin, China
- Department of Neonatology, Nankai University Maternity Hospital, Tianjin, China
| | - Jun Zheng
- Department of Neonatology, Tianjin Central Hospital of Obstetrics and Gynecology, Tianjin, China
- Tianjin Key Laboratory of Human Development and Reproductive Regulation, Tianjin, China
- Department of Neonatology, Nankai University Maternity Hospital, Tianjin, China
- *Correspondence: Jun Zheng, (JZ); Fangrui Ding, (FD)
| | - Fangrui Ding
- Department of Neonatology, Tianjin Central Hospital of Obstetrics and Gynecology, Tianjin, China
- Tianjin Key Laboratory of Human Development and Reproductive Regulation, Tianjin, China
- Department of Neonatology, Nankai University Maternity Hospital, Tianjin, China
- *Correspondence: Jun Zheng, (JZ); Fangrui Ding, (FD)
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26
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Zhang Y, Xie Y, Lu W, Xu S, Wang X, Zhou W, Zhang Y, Ding X, Zhao S. Identification of resident progenitors labeled with Top2a responsible for proximal tubular regeneration in ischemia reperfusion-induced acute kidney injury. Cell Signal 2023; 101:110506. [PMID: 36309330 DOI: 10.1016/j.cellsig.2022.110506] [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: 09/17/2022] [Revised: 10/19/2022] [Accepted: 10/21/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND Acute kidney injury is a common fatal disease with complex etiology and limited treatment methods. Proximal tubules (PTs) are the most vulnerable segment. Not only in injured kidneys but also in normal kidneys, shedding of PTs often happens. However, the source cells and mechanism of their regeneration remain unclear. METHODS ScRNA and snRNA sequencing data of acute injured or normal kidney were downloaded from GEO database to identify the candidate biomarker of progenitor of proximal tubules. SLICE algorithm and CytoTRACE analyses were employed to evaluate the stemness of progenitors. Then the repairing trajectory was constructed through pseudotime analyses. SCENIC algorithm was used to detect cell-type-specific regulon. With spatial transcriptome data, the location of progenitors was simulated. Neonatal/ adult/ aged mice and preconditioning AKI mice model and deconvolution of 2 RNA-seq data were employed for validation. RESULTS Through cluster identification, PT cluster expressed Top2a specifically was identified to increase significantly during AKI. With relatively strong stemness, the Top2a-labeled PT cluster tended to be the origin of the repairing trajectory. Moreover, the cluster was regulated by Pbx3-based regulon and possessed great segmental heterogeneity. Changes of Top2a between neonatal and aged mice and among AKI models validated the progenitor role of Top2a-labeled cluster. CONCLUSIONS Our study provided transcriptomic evidence that resident proximal tubular progenitors labeled with Top2a participated in regeneration. Considering the segmental heterogeneity, we find that there is a group of reserve progenitor cells in each tubular segment. When AKI occurs, the reserve progenitors of each tubular segment proliferate and replenish first, and PT-progenitors, a cluster with no obvious PT markers replenish each subpopulation of the reserve cells.
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Affiliation(s)
- Yang Zhang
- Department of Nephrology, Zhongshan Hospital, Fudan University
| | - Yeqing Xie
- Department of Nephrology, Zhongshan Hospital, Fudan University; Shanghai Medical Center of Kidney Disease; Kidney and Dialysis Institute of Shanghai; Kidney and Blood Purification Key Laboratory of Shanghai
| | - Wei Lu
- Department of Nephrology, Zhongshan Hospital, Fudan University
| | - Sujuan Xu
- Department of Nephrology, Zhongshan Hospital, Fudan University
| | - Xiaoyan Wang
- Department of Nephrology, Zhongshan Hospital, Fudan University
| | - Weiran Zhou
- Department of Nephrology, Zhongshan Hospital, Fudan University
| | - Yingjia Zhang
- Department of Nephrology, Zhongshan Hospital, Fudan University
| | - Xiaoqiang Ding
- Department of Nephrology, Zhongshan Hospital, Fudan University; Shanghai Medical Center of Kidney Disease; Kidney and Dialysis Institute of Shanghai; Kidney and Blood Purification Key Laboratory of Shanghai.
| | - Shuan Zhao
- Department of Nephrology, Zhongshan Hospital, Fudan University; Shanghai Medical Center of Kidney Disease; Kidney and Dialysis Institute of Shanghai; Kidney and Blood Purification Key Laboratory of Shanghai.
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27
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Sharma A, Meer M, Dapkunas A, Ihermann-Hella A, Kuure S, Vainio SJ, Iber D, Naillat F. FGF8 induces chemokinesis and regulates condensation of mouse nephron progenitor cells. Development 2022; 149:277149. [DOI: 10.1242/dev.201012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 09/23/2022] [Indexed: 11/07/2022]
Abstract
ABSTRACT
Kidneys develop via iterative branching of the ureteric epithelial tree and subsequent nephrogenesis at the branch points. Nephrons form in the cap mesenchyme as the metanephric mesenchyme (MM) condenses around the epithelial ureteric buds (UBs). Previous work has demonstrated that FGF8 is important for the survival of nephron progenitor cells (NPCs), and early deletion of Fgf8 leads to the cessation of nephron formation, which results in post-natal lethality. We now reveal a previously unreported function of FGF8. By combining transgenic mouse models, quantitative imaging assays and data-driven computational modelling, we show that FGF8 has a strong chemokinetic effect and that this chemokinetic effect is important for the condensation of NPCs to the UB. The computational model shows that the motility must be lower close to the UB to achieve NPC attachment. We conclude that the FGF8 signalling pathway is crucial for the coordination of NPC condensation at the UB. Chemokinetic effects have also been described for other FGFs and may be generally important for the formation of mesenchymal condensates.
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Affiliation(s)
- Abhishek Sharma
- University of Oulu 1 Faculty of Biochemistry and Molecular Medicine , , Oulu 90220, Finland
- Biocenter Oulu 2 , Oulu 90220, Finland
| | - Marco Meer
- ETH Zürich 3 Department of Biosystems, Science and Engineering , , Zürich 04058, Switzerland
- Swiss Institute of Bioinformatics 4 , Lausanne 1015 , Switzerland
| | - Arvydas Dapkunas
- University of Helsinki 5 HiLIFE and Research Programs Unit, Faculty of Medicine , , Helsinki 00014, Finland
| | - Anneliis Ihermann-Hella
- University of Helsinki 5 HiLIFE and Research Programs Unit, Faculty of Medicine , , Helsinki 00014, Finland
| | - Satu Kuure
- University of Helsinki 5 HiLIFE and Research Programs Unit, Faculty of Medicine , , Helsinki 00014, Finland
- LAC/HiLIFE, and Medicum, University of Helsinki 6 GM-Unit , , Helsinki 00014, Finland
| | - Seppo J. Vainio
- University of Oulu 1 Faculty of Biochemistry and Molecular Medicine , , Oulu 90220, Finland
- Biocenter Oulu 2 , Oulu 90220, Finland
- Infotech Oulu 7 , Oulu 90200, Finland
- Borealis Biobank 8 , Oulu 90200, Finland
- Kvantum Institute, University of Oulu 9 , Oulu 90200, Finland
| | - Dagmar Iber
- ETH Zürich 3 Department of Biosystems, Science and Engineering , , Zürich 04058, Switzerland
- Swiss Institute of Bioinformatics 4 , Lausanne 1015 , Switzerland
| | - Florence Naillat
- University of Oulu 1 Faculty of Biochemistry and Molecular Medicine , , Oulu 90220, Finland
- Biocenter Oulu 2 , Oulu 90220, Finland
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28
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Glykofrydis F, Elfick A. Exploring standards for multicellular mammalian synthetic biology. Trends Biotechnol 2022; 40:1299-1312. [PMID: 35803769 DOI: 10.1016/j.tibtech.2022.06.001] [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: 02/01/2022] [Revised: 05/16/2022] [Accepted: 06/02/2022] [Indexed: 01/21/2023]
Abstract
Synthetic biology is moving towards bioengineering multicellular mammalian systems that are poised to advance tissue engineering, biomedicine, and the food industry. Despite progress, the field lacks a framework of standards that could greatly accelerate further development. Here, we explore the landscape of standards for multicellular mammalian synthetic biology. We discuss the limits of current technical standards and categorise unaddressed parameters into an abstraction hierarchy. We then define the concept of a 'synthetic multicellular mammalian system' and apply our standard hierarchy framework to illustrate how it could aid bioengineering endeavours. We conclude with promising areas that could shape the future of the field, flagging the need for a critical and holistic consideration of standards that requires cross-disciplinary dialogue.
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Affiliation(s)
- Fokion Glykofrydis
- Institute for Bioengineering, School of Engineering, University of Edinburgh, King's Buildings, Edinburgh, EH9 3BF, UK; UK Centre for Mammalian Synthetic Biology, University of Edinburgh, King's Buildings, Edinburgh, EH9 3BD, UK
| | - Alistair Elfick
- Institute for Bioengineering, School of Engineering, University of Edinburgh, King's Buildings, Edinburgh, EH9 3BF, UK; UK Centre for Mammalian Synthetic Biology, University of Edinburgh, King's Buildings, Edinburgh, EH9 3BD, UK.
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29
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Kalejaiye TD, Barreto AD, Musah S. Translating Organoids into Artificial Kidneys. CURRENT TRANSPLANTATION REPORTS 2022; 9:276-286. [PMID: 36311696 PMCID: PMC9592871 DOI: 10.1007/s40472-022-00383-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/27/2022] [Indexed: 11/21/2022]
Abstract
Purpose of Review
Kidney disease affects more than 13% of the world population, and current treatment options are limited to dialysis and organ transplantation. The generation of kidney organoids from human-induced pluripotent stem (hiPS) cells could be harnessed to engineer artificial organs and help overcome the challenges associated with the limited supply of transplantable kidneys. The purpose of this article is to review the progress in kidney organoid generation and transplantation and highlight some existing challenges in the field. We also examined possible improvements that could help realize the potential of organoids as artificial organs or alternatives for kidney transplantation therapy. Recent Findings Organoids are useful for understanding the mechanisms of kidney development, and they provide robust platforms for drug screening, disease modeling, and generation of tissues for organ replacement therapies. Efforts to design organoids rely on the ability of cells to self-assemble and pattern themselves into recognizable tissues. While existing protocols for generating organoids result in multicellular structures reminiscent of the developing kidney, many do not yet fully recapitulate the complex cellular composition, structure, and functions of the intact kidney. Recent advances toward achieving these goals include identifying cell culture conditions that produce organoids with improved vasculature and cell maturation and functional states. Still, additional improvements are needed to enhance tissue patterning, specialization, and function, and avoid tumorigenicity after transplantation. Summary This report focuses on kidney organoid studies, advancements and limitations, and future directions for improvements towards transplantation.
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Affiliation(s)
- Titilola D. Kalejaiye
- grid.26009.3d0000 0004 1936 7961Department of Biomedical Engineering, Pratt School of Engineering, Duke University, Durham, NC USA
| | - Amanda D. Barreto
- grid.26009.3d0000 0004 1936 7961Department of Biomedical Engineering, Pratt School of Engineering, Duke University, Durham, NC USA
| | - Samira Musah
- grid.26009.3d0000 0004 1936 7961Department of Biomedical Engineering, Pratt School of Engineering, Duke University, Durham, NC USA ,grid.26009.3d0000 0004 1936 7961Division of Nephrology, Department of Medicine, Duke University School of Medicine, Durham, NC USA ,grid.26009.3d0000 0004 1936 7961Department of Cell Biology, Duke University, Durham, NC USA ,Affiliate Faculty of the Developmental and Stem Cell Biology Program, Duke Regeneration Center, and Duke MEDx Initiative, Durham, NC USA
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30
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Schnell J, Achieng M, Lindström NO. Principles of human and mouse nephron development. Nat Rev Nephrol 2022; 18:628-642. [PMID: 35869368 DOI: 10.1038/s41581-022-00598-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/10/2022] [Indexed: 12/17/2022]
Abstract
The mechanisms underlying kidney development in mice and humans is an area of intense study. Insights into kidney organogenesis have the potential to guide our understanding of the origin of congenital anomalies and enable the assembly of genetic diagnostic tools. A number of studies have delineated signalling nodes that regulate positional identities and cell fates of nephron progenitor and precursor cells, whereas cross-species comparisons have markedly enhanced our understanding of conserved and divergent features of mammalian kidney organogenesis. Greater insights into the complex cellular movements that occur as the proximal-distal axis is established have challenged our understanding of nephron patterning and provided important clues to the elaborate developmental context in which human kidney diseases can arise. Studies of kidney development in vivo have also facilitated efforts to recapitulate nephrogenesis in kidney organoids in vitro, by providing a detailed blueprint of signalling events, cell movements and patterning mechanisms that are required for the formation of correctly patterned nephrons and maturation of physiologically functional apparatus that are responsible for maintaining human health.
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Affiliation(s)
- Jack Schnell
- Department of Stem Cell Biology and Regenerative Medicine, Eli and Edythe Broad CIRM Center for Regenerative Medicine and Stem Cell Research at University of Southern California, Los Angeles, CA, USA
| | - MaryAnne Achieng
- Department of Stem Cell Biology and Regenerative Medicine, Eli and Edythe Broad CIRM Center for Regenerative Medicine and Stem Cell Research at University of Southern California, Los Angeles, CA, USA
| | - Nils Olof Lindström
- Department of Stem Cell Biology and Regenerative Medicine, Eli and Edythe Broad CIRM Center for Regenerative Medicine and Stem Cell Research at University of Southern California, Los Angeles, CA, USA.
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31
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Safi W, Marco A, Moya D, Prado P, Garreta E, Montserrat N. Assessing kidney development and disease using kidney organoids and CRISPR engineering. Front Cell Dev Biol 2022; 10:948395. [PMID: 36120564 PMCID: PMC9479189 DOI: 10.3389/fcell.2022.948395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 07/06/2022] [Indexed: 11/26/2022] Open
Abstract
The differentiation of human pluripotent stem cells (hPSCs) towards organoids is one of the biggest scientific advances in regenerative medicine. Kidney organoids have not only laid the groundwork for various organ-like tissue systems but also provided insights into kidney embryonic development. Thus, several protocols for the differentiation of renal progenitors or mature cell types have been established. Insights into the interplay of developmental pathways in nephrogenesis and determination of different cell fates have enabled the in vitro recapitulation of nephrogenesis. Here we first provide an overview of kidney morphogenesis and patterning in the mouse model in order to dissect signalling pathways that are key to define culture conditions sustaining renal differentiation from hPSCs. Secondly, we also highlight how genome editing approaches have provided insights on the specific role of different genes and molecular pathways during renal differentiation from hPSCs. Based on this knowledge we further review how CRISPR/Cas9 technology has enabled the recapitulation and correction of cellular phenotypes associated with human renal disease. Last, we also revise how the field has positively benefited from emerging technologies as single cell RNA sequencing and discuss current limitations on kidney organoid technology that will take advantage from bioengineering solutions to help standardizing the use of this model systems to study kidney development and disease.
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Affiliation(s)
- Wajima Safi
- Pluripotency for Organ Regeneration. Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Technology (BIST), Barcelona, Spain
- *Correspondence: Wajima Safi, ; Elena Garreta, ; Nuria Montserrat,
| | - Andrés Marco
- Pluripotency for Organ Regeneration. Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Technology (BIST), Barcelona, Spain
| | | | - Patricia Prado
- Pluripotency for Organ Regeneration. Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Technology (BIST), Barcelona, Spain
| | - Elena Garreta
- Pluripotency for Organ Regeneration. Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Technology (BIST), Barcelona, Spain
- *Correspondence: Wajima Safi, ; Elena Garreta, ; Nuria Montserrat,
| | - Nuria Montserrat
- Pluripotency for Organ Regeneration. Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Technology (BIST), Barcelona, Spain
- Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina, Madrid, Spain
- Catalan Institution for Research and Advanced Studies (ICREA), Barcelona, Spain
- *Correspondence: Wajima Safi, ; Elena Garreta, ; Nuria Montserrat,
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32
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Minuth WW. The interstitium at the developing nephron in the fetal kidney during advanced pregnancy - a microanatomical inventory. Mol Cell Pediatr 2022; 9:17. [PMID: 36008693 PMCID: PMC9411487 DOI: 10.1186/s40348-022-00149-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 08/15/2022] [Indexed: 11/10/2022] Open
Abstract
Background A series of noxae can evoke the termination of nephron formation in preterm and low birth weight babies. This results in oligonephropathy with severe consequences for health in the later life. Although the clinical parameters have been extensively investigated, little is known about the initial damage. Previous pathological findings indicate the reduction in width of the nephrogenic zone and the lack of S-shaped bodies. Current morphological investigations suggest that due to the mutual patterning beside the forming nephron, also its structural neighbors, particularly the interjacent interstitium, must be affected. However, beside the findings on integrative and mastering functions, systematic microanatomical data explaining the configuration of the interstitium at the developing nephron in the fetal kidney during advanced pregnancy is not available. Therefore, this work explains the typical features. Results The generated data depicts that the progenitor cells, nephrogenic niche, pretubular aggregate, and mesenchymal-to-epithelial transition are restricted to the subcapsular interstitium. During the proceeding development, only the distal pole of the renal vesicles and comma- and S-shaped bodies stays in further contact with it. The respective proximal pole is positioned opposite the peritubular interstitium at the connecting tubule of an underlying but previously formed nephron. The related medial aspect faces the narrow peritubular interstitium of a collecting duct (CD) ampulla first only at its tip, then at its head, conus, and neck, and finally at the differentiating CD tubule. The lateral aspect starts at the subcapsular interstitium, but then it is positioned along the wide perivascular interstitium of the neighboring ascending perforating radiate artery. When the nephron matures, the interstitial configuration changes again. Conclusions The present investigation illustrates that the interstitium at the forming nephron in the fetal kidney consists of existing, transient, stage-specific, and differently far matured compartments. According to the developmental needs, it changes its shape by formation, degradation, fusion, and rebuilding.
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Affiliation(s)
- Will W Minuth
- Institute of Anatomy, University of Regensburg, 93053, Regensburg, Germany.
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33
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Chen J, Luo P, Wang C, Yang C, Bai Y, He X, Zhang Q, Zhang J, Yang J, Wang S, Wang J. Integrated single-cell transcriptomics and proteomics reveal cellular-specific response and microenvironment remodeling in aristolochic acid nephropathy. JCI Insight 2022; 7:157360. [PMID: 35852860 PMCID: PMC9462482 DOI: 10.1172/jci.insight.157360] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 07/14/2022] [Indexed: 11/30/2022] Open
Abstract
Aristolochic acid nephropathy (AAN) is characterized by acute proximal tubule necrosis and immune cell infiltration, contributing to the global burden of chronic kidney disease and urothelial cancer. Although the proximal tubule has been defined as the primary target of aristolochic acids I (AAI), the mechanistic underpinning of gross renal deterioration caused by AAI has not been explicitly explained, prohibiting effective therapeutic intervention. To this point, we employed integrated single-cell RNA-Seq, bulk RNA-Seq, and mass spectrometry–based proteomics to analyze the mouse kidney after acute AAI exposure. Our results reveal a dramatic reduction of proximal tubule epithelial cells, associated with apoptotic and inflammatory pathways, indicating permanent damage beyond repair. We found the enriched development pathways in other nephron segments, suggesting activation of reparative programs triggered by AAI. The divergent response may be attributed to the segment-specific distribution of organic anion channels along the nephron, including OAT1 and OAT3. Moreover, we observed dramatic activation and recruitment of cytotoxic T and macrophage M1 cells, highlighting inflammation as a principal contributor to permanent renal injury. Ligand-receptor pairing revealed that critical intercellular crosstalk underpins damage-induced activation of immune cells. These results provide potentially novel insight into the AAI-induced kidney injury and point out possible pathways for future therapeutic intervention.
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Affiliation(s)
- Jiayun Chen
- Artemisinin Research Center and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Piao Luo
- Artemisinin Research Center and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Chen Wang
- Artemisinin Research Center and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Chuanbin Yang
- Department of Geriatrics, Shenzhen People’s Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong, China
| | - Yunmeng Bai
- Department of Geriatrics, Shenzhen People’s Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong, China
| | - Xueling He
- Artemisinin Research Center and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Qian Zhang
- Artemisinin Research Center and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Junzhe Zhang
- Artemisinin Research Center and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Jing Yang
- Department of Geriatrics, Shenzhen People’s Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong, China
| | - Shuang Wang
- Department of Geriatrics, Shenzhen People’s Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong, China
| | - Jigang Wang
- Artemisinin Research Center and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
- Department of Geriatrics, Shenzhen People’s Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong, China
- Center for Reproductive Medicine, Dongguan Maternal and Child Health Care Hospital, Southern Medical University, Dongguan, Guangdong, China
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34
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Tran T, Song CJ, Nguyen T, Cheng SY, McMahon JA, Yang R, Guo Q, Der B, Lindström NO, Lin DCH, McMahon AP. A scalable organoid model of human autosomal dominant polycystic kidney disease for disease mechanism and drug discovery. Cell Stem Cell 2022; 29:1083-1101.e7. [PMID: 35803227 PMCID: PMC11088748 DOI: 10.1016/j.stem.2022.06.005] [Citation(s) in RCA: 41] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 01/28/2022] [Accepted: 06/08/2022] [Indexed: 12/13/2022]
Abstract
Human pluripotent stem-cell-derived organoids are models for human development and disease. We report a modified human kidney organoid system that generates thousands of similar organoids, each consisting of 1-2 nephron-like structures. Single-cell transcriptomic profiling and immunofluorescence validation highlighted patterned nephron-like structures utilizing similar pathways, with distinct morphogenesis, to human nephrogenesis. To examine this platform for therapeutic screening, the polycystic kidney disease genes PKD1 and PKD2 were inactivated by gene editing. PKD1 and PKD2 mutant models exhibited efficient and reproducible cyst formation. Cystic outgrowths could be propagated for months to centimeter-sized cysts. To shed new light on cystogenesis, 247 protein kinase inhibitors (PKIs) were screened in a live imaging assay identifying compounds blocking cyst formation but not overall organoid growth. Scaling and further development of the organoid platform will enable a broader capability for kidney disease modeling and high-throughput drug screens.
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Affiliation(s)
- Tracy Tran
- Department of Stem Cell Biology and Regenerative Medicine, Broad-CIRM Center, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA
| | - Cheng Jack Song
- Department of Stem Cell Biology and Regenerative Medicine, Broad-CIRM Center, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA; Amgen Research, Cardiometabolic Disorders, 1120 Veterans Blvd, South San Francisco, CA 94080, USA
| | - Trang Nguyen
- Department of Stem Cell Biology and Regenerative Medicine, Broad-CIRM Center, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA
| | - Shun-Yang Cheng
- Department of Stem Cell Biology and Regenerative Medicine, Broad-CIRM Center, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA
| | - Jill A McMahon
- Department of Stem Cell Biology and Regenerative Medicine, Broad-CIRM Center, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA
| | - Rui Yang
- Department of Stem Cell Biology and Regenerative Medicine, Broad-CIRM Center, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA
| | - Qiuyu Guo
- Department of Stem Cell Biology and Regenerative Medicine, Broad-CIRM Center, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA
| | - Balint Der
- Department of Stem Cell Biology and Regenerative Medicine, Broad-CIRM Center, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA
| | - Nils O Lindström
- Department of Stem Cell Biology and Regenerative Medicine, Broad-CIRM Center, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA
| | - Daniel C-H Lin
- Amgen Research, Cardiometabolic Disorders, 1120 Veterans Blvd, South San Francisco, CA 94080, USA
| | - Andrew P McMahon
- Department of Stem Cell Biology and Regenerative Medicine, Broad-CIRM Center, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA.
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35
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Röck R, Rizzo L, Lienkamp SS. Kidney Development: Recent Insights from Technological Advances. Physiology (Bethesda) 2022; 37:0. [PMID: 35253460 DOI: 10.1152/physiol.00041.2021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
The kidney is a complex organ, and how it forms is a fascinating process. New technologies, such as single-cell transcriptomics, and enhanced imaging modalities are offering new approaches to understand the complex and intertwined processes during embryonic kidney development.
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Affiliation(s)
- Ruth Röck
- Institute of Anatomy, University of Zurich, Zurich, Switzerland.,Swiss National Centres of Competence in Research (NCCR) Kidney Control of Homeostasis (Kidney.CH), Zurich, Switzerland
| | - Ludovica Rizzo
- Institute of Anatomy, University of Zurich, Zurich, Switzerland.,Swiss National Centres of Competence in Research (NCCR) Kidney Control of Homeostasis (Kidney.CH), Zurich, Switzerland.,PhD program "Molecular and Translational Biomedicine," Life Science Zurich Graduate School, Zurich, Switzerland
| | - Soeren S Lienkamp
- Institute of Anatomy, University of Zurich, Zurich, Switzerland.,Swiss National Centres of Competence in Research (NCCR) Kidney Control of Homeostasis (Kidney.CH), Zurich, Switzerland
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36
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A diabetic milieu increases ACE2 expression and cellular susceptibility to SARS-CoV-2 infections in human kidney organoids and patient cells. Cell Metab 2022; 34:857-873.e9. [PMID: 35561674 PMCID: PMC9097013 DOI: 10.1016/j.cmet.2022.04.009] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 02/02/2022] [Accepted: 04/19/2022] [Indexed: 12/14/2022]
Abstract
It is not well understood why diabetic individuals are more prone to develop severe COVID-19. To this, we here established a human kidney organoid model promoting early hallmarks of diabetic kidney disease development. Upon SARS-CoV-2 infection, diabetic-like kidney organoids exhibited higher viral loads compared with their control counterparts. Genetic deletion of the angiotensin-converting enzyme 2 (ACE2) in kidney organoids under control or diabetic-like conditions prevented viral detection. Moreover, cells isolated from kidney biopsies from diabetic patients exhibited altered mitochondrial respiration and enhanced glycolysis, resulting in higher SARS-CoV-2 infections compared with non-diabetic cells. Conversely, the exposure of patient cells to dichloroacetate (DCA), an inhibitor of aerobic glycolysis, resulted in reduced SARS-CoV-2 infections. Our results provide insights into the identification of diabetic-induced metabolic programming in the kidney as a critical event increasing SARS-CoV-2 infection susceptibility, opening the door to the identification of new interventions in COVID-19 pathogenesis targeting energy metabolism.
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37
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Vanslambrouck JM, Wilson SB, Tan KS, Groenewegen E, Rudraraju R, Neil J, Lawlor KT, Mah S, Scurr M, Howden SE, Subbarao K, Little MH. Enhanced metanephric specification to functional proximal tubule enables toxicity screening and infectious disease modelling in kidney organoids. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2022:2021.10.14.464320. [PMID: 35665006 PMCID: PMC9164445 DOI: 10.1101/2021.10.14.464320] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
Abstract
While pluripotent stem cell-derived kidney organoids are now being used to model renal disease, the proximal nephron remains immature with limited evidence for key functional solute channels. This may reflect early mispatterning of the nephrogenic mesenchyme and/or insufficient maturation. Here we show that enhanced specification to metanephric nephron progenitors results in elongated and radially aligned proximalised nephrons with distinct S1 - S3 proximal tubule cell types. Such PT-enhanced organoids possess improved albumin and organic cation uptake, appropriate KIM-1 upregulation in response to cisplatin, and improved expression of SARS-CoV-2 entry factors resulting in increased viral replication. The striking proximo-distal orientation of nephrons resulted from localized WNT antagonism originating from the organoid stromal core. PT-enhanced organoids represent an improved model to study inherited and acquired proximal tubular disease as well as drug and viral responses.
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Affiliation(s)
- Jessica M. Vanslambrouck
- Murdoch Children’s Research Institute, Flemington Rd, Parkville, VIC, Australia
- Department of Paediatrics, The University of Melbourne, VIC, Australia
| | - Sean B. Wilson
- Murdoch Children’s Research Institute, Flemington Rd, Parkville, VIC, Australia
- Department of Paediatrics, The University of Melbourne, VIC, Australia
| | - Ker Sin Tan
- Murdoch Children’s Research Institute, Flemington Rd, Parkville, VIC, Australia
| | - Ella Groenewegen
- Murdoch Children’s Research Institute, Flemington Rd, Parkville, VIC, Australia
| | - Rajeev Rudraraju
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, VIC, Australia
| | - Jessica Neil
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, VIC, Australia
| | - Kynan T. Lawlor
- Murdoch Children’s Research Institute, Flemington Rd, Parkville, VIC, Australia
- Department of Paediatrics, The University of Melbourne, VIC, Australia
| | - Sophia Mah
- Murdoch Children’s Research Institute, Flemington Rd, Parkville, VIC, Australia
| | - Michelle Scurr
- Murdoch Children’s Research Institute, Flemington Rd, Parkville, VIC, Australia
| | - Sara E. Howden
- Murdoch Children’s Research Institute, Flemington Rd, Parkville, VIC, Australia
- Department of Paediatrics, The University of Melbourne, VIC, Australia
| | - Kanta Subbarao
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, VIC, Australia
| | - Melissa H. Little
- Murdoch Children’s Research Institute, Flemington Rd, Parkville, VIC, Australia
- Department of Paediatrics, The University of Melbourne, VIC, Australia
- Department of Anatomy and Neuroscience, The University of Melbourne, VIC, Australia
- Author for correspondence: M.H.L.: +61 3 9936 6206;
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38
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Duvall K, Crist L, Perl AJ, Pode Shakked N, Chaturvedi P, Kopan R. Revisiting the role of Notch in nephron segmentation confirms a role for proximal fate selection during mouse and human nephrogenesis. Development 2022; 149:275412. [PMID: 35451473 PMCID: PMC9188758 DOI: 10.1242/dev.200446] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 04/14/2022] [Indexed: 12/16/2022]
Abstract
Notch signaling promotes maturation of nephron epithelia, but its proposed contribution to nephron segmentation into proximal and distal domains has been called into doubt. We leveraged single cell and bulk RNA-seq, quantitative immunofluorescent lineage/fate tracing, and genetically modified human induced pluripotent stem cells (iPSCs) to revisit this question in developing mouse kidneys and human kidney organoids. We confirmed that Notch signaling is needed for maturation of all nephron lineages, and thus mature lineage markers fail to detect a fate bias. By contrast, early markers identified a distal fate bias in cells lacking Notch2, and a concomitant increase in early proximal and podocyte fates in cells expressing hyperactive Notch1 was observed. Orthogonal support for a conserved role for Notch signaling in the distal/proximal axis segmentation is provided by the demonstration that nicastrin (NCSTN)-deficient human iPSC-derived organoids differentiate into TFA2B+ distal tubule and CDH1+ connecting segment progenitors, but not into HNF4A+ or LTL+ proximal progenitors.
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Affiliation(s)
- Kathryn Duvall
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA.,Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Lauren Crist
- Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Alison J Perl
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA.,Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Naomi Pode Shakked
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA.,Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA.,Division of Nephrology and Hypertension, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 69978, Israel
| | - Praneet Chaturvedi
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA.,Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Raphael Kopan
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45229, USA.,Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
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39
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Comparative whole-genome transcriptome analysis in renal cell populations reveals high tissue specificity of MAPK/ERK targets in embryonic kidney. BMC Biol 2022; 20:112. [PMID: 35550069 PMCID: PMC9102746 DOI: 10.1186/s12915-022-01309-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 04/25/2022] [Indexed: 12/19/2022] Open
Abstract
Background MAPK/ERK signaling is a well-known mediator of extracellular stimuli controlling intracellular responses to growth factors and mechanical cues. The critical requirement of MAPK/ERK signaling for embryonic stem cell maintenance is demonstrated, but specific functions in progenitor regulation during embryonic development, and in particular kidney development remain largely unexplored. We previously demonstrated MAPK/ERK signaling as a key regulator of kidney growth through branching morphogenesis and normal nephrogenesis where it also regulates progenitor expansion. Here, we performed RNA sequencing-based whole-genome expression analysis to identify transcriptional MAPK/ERK targets in two distinct renal populations: the ureteric bud epithelium and the nephron progenitors. Results Our analysis revealed a large number (5053) of differentially expressed genes (DEGs) in nephron progenitors and significantly less (1004) in ureteric bud epithelium, reflecting likely heterogenicity of cell types. The data analysis identified high tissue-specificity, as only a fraction (362) of MAPK/ERK targets are shared between the two tissues. Tissue-specific MAPK/ERK targets participate in the regulation of mitochondrial energy metabolism in nephron progenitors, which fail to maintain normal mitochondria numbers in the MAPK/ERK-deficient tissue. In the ureteric bud epithelium, a dramatic decline in progenitor-specific gene expression was detected with a simultaneous increase in differentiation-associated genes, which was not observed in nephron progenitors. Our experiments in the genetic model of MAPK/ERK deficiency provide evidence that MAPK/ERK signaling in the ureteric bud maintains epithelial cells in an undifferentiated state. Interestingly, the transcriptional targets shared between the two tissues studied are over-represented by histone genes, suggesting that MAPK/ERK signaling regulates cell cycle progression and stem cell maintenance through chromosome condensation and nucleosome assembly. Conclusions Using tissue-specific MAPK/ERK inactivation and RNA sequencing in combination with experimentation in embryonic kidneys, we demonstrate here that MAPK/ERK signaling maintains ureteric bud tip cells, suggesting a regulatory role in collecting duct progenitors. We additionally deliver new mechanistic information on how MAPK/ERK signaling regulates progenitor maintenance through its effects on chromatin accessibility and energy metabolism. Supplementary Information The online version contains supplementary material available at 10.1186/s12915-022-01309-z.
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40
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Lamontagne JO, Zhang H, Zeid AM, Strittmatter K, Rocha AD, Williams T, Zhang S, Marneros AG. Transcription factors AP-2α and AP-2β regulate distinct segments of the distal nephron in the mammalian kidney. Nat Commun 2022; 13:2226. [PMID: 35468900 PMCID: PMC9038906 DOI: 10.1038/s41467-022-29644-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Accepted: 03/22/2022] [Indexed: 12/13/2022] Open
Abstract
Transcription factors AP-2α and AP-2β have been suggested to regulate the differentiation of nephron precursor populations towards distal nephron segments. Here, we show that in the adult mammalian kidney AP-2α is found in medullary collecting ducts, whereas AP-2β is found in distal nephron segments except for medullary collecting ducts. Inactivation of AP-2α in nephron progenitor cells does not affect mammalian nephrogenesis, whereas its inactivation in collecting ducts leads to defects in medullary collecting ducts in the adult. Heterozygosity for AP-2β in nephron progenitor cells leads to progressive distal convoluted tubule abnormalities and β-catenin/mTOR hyperactivation that is associated with renal fibrosis and cysts. Complete loss of AP-2β in nephron progenitor cells caused an absence of distal convoluted tubules, renal cysts, and fibrosis with β-catenin/mTOR hyperactivation, and early postnatal death. Thus, AP-2α and AP-2β have non-redundant distinct spatiotemporal functions in separate segments of the distal nephron in the mammalian kidney. How the distal nephron is patterned during kidney development has been difficult to study. Here they show that AP-2β is required for the formation and postnatal function of distal convoluted tubules, whereas AP-2α has a role in maintaining the structure of medullary collecting ducts.
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Affiliation(s)
- Joseph O Lamontagne
- Cutaneous Biology Research Center, Department of Dermatology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, 02129, USA
| | - Hui Zhang
- Cutaneous Biology Research Center, Department of Dermatology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, 02129, USA
| | - Alia M Zeid
- Cutaneous Biology Research Center, Department of Dermatology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, 02129, USA
| | - Karin Strittmatter
- Cutaneous Biology Research Center, Department of Dermatology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, 02129, USA
| | - Alicia D Rocha
- Cutaneous Biology Research Center, Department of Dermatology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, 02129, USA
| | - Trevor Williams
- Department of Craniofacial Biology, University of Colorado, Anschutz Medical Campus, Aurora, CO, 80045, USA
| | - Sheryl Zhang
- Cutaneous Biology Research Center, Department of Dermatology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, 02129, USA
| | - Alexander G Marneros
- Cutaneous Biology Research Center, Department of Dermatology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, 02129, USA.
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41
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Hilliard S, Tortelote G, Liu H, Chen CH, El-Dahr S. Single-Cell Chromatin and Gene-Regulatory Dynamics of Mouse Nephron Progenitors. J Am Soc Nephrol 2022; 33:1308-1322. [PMID: 35383123 PMCID: PMC9257825 DOI: 10.1681/asn.2021091213] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 03/22/2022] [Indexed: 11/03/2022] Open
Abstract
BACKGROUND We reasoned that unraveling the dynamic changes in accessibility of genomic regulatory elements and gene expression at single-cell resolution will inform the basic mechanisms of nephrogenesis. METHODS We performed single-cell ATAC-seq and RNA-seq both individually (Singleomes; Six2GFPcells) and jointly in the same cells (Multiomes; kidneys) to generate integrated chromatin and transcriptional maps in mouse embryonic and neonatal nephron progenitor cells (NPCs). RESULTS WWe demonstrate that singleomes and multiomes are comparable in assigning most cell states, identification of new cell type markers, and defining the transcription factors driving cell identity. However, multiomes are more precise in defining the progenitor population. Multiomes identified a "pioneer" bHLH/Fox motif signature in NPCs. Moreover, we identified a subset of Fox factors exhibiting high chromatin activity in podocytes. One of these Fox factors, Foxp1, is important for nephrogenesis. Key nephrogenic factors are distinguished by strong correlation between linked generegulatory elements and gene expression. CONCLUSION Mapping the regulatory landscape at single-cell resolution informs the regulatory hierarchy of nephrogenesis. Paired single-cell epigenomes and transcriptomes of nephron progenitors should provide a foundation to understand prenatal programming, regeneration following injury, and ex vivo nephrogenesis.
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Affiliation(s)
- Sylvia Hilliard
- S Hilliard, Section of Pediatric Nephrology, Department of Pediatrics, Tulane University School of Medicine, New Orleans, United States
| | - Giovane Tortelote
- G Tortelote, Section of Pediatric Nephrology, Department of Pediatrics, Tulane University School of Medicine, New Orleans, United States
| | - Hongbing Liu
- H Liu, Section of Pediatric Nephrology, Department of Pediatrics, Tulane University School of Medicine, New Orleasn, United States
| | - Chao-Hui Chen
- C Chen, Section of Pediatric Nephrology, Department of Pediatrics, Tulane University School of Medicine, New Orleans, United States
| | - Samir El-Dahr
- S El-Dahr, Section of Pediatric Nephrology, Department of Pediatrics, Tulane University School of Medicine, New Orleans, United States
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Abstract
The field of single-cell genomics and spatial technologies is rapidly evolving and has already provided unprecedented insights into complex tissues. Major advances have been made in dissecting the cellular composition and spatiotemporal interactions that mediate developmental processes in the fetal kidney. Single-cell technologies have also provided detailed insights into the heterogeneity of cell types within the healthy adult and shed light on the complex cellular mechanisms that contribute to kidney disease. The in-depth characterization of specific cell types associated with acute kidney injury and glomerular diseases has potential for the development of prognostic biomarkers and new therapeutics. Analyses of pathway activity in clear-cell renal cell carcinoma can predict the sensitivity of tumour cells to specific inhibitors. The identification of the cell of origin of renal cell carcinoma and of new cell types within the tumour microenvironment also has implications for the development of targeted therapeutics. Similarly, single-cell sequencing has provided new insights into the mechanisms underlying kidney fibrosis, specifically our understanding of myofibroblast origins and the contribution of cell crosstalk within the fibrotic niche to disease progression. These and future studies will enable the creation of a map to aid our understanding of the cellular processes and interactions in the developing, healthy and diseased kidney.
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43
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Wilson SB, Howden SE, Vanslambrouck JM, Dorison A, Alquicira-Hernandez J, Powell JE, Little MH. DevKidCC allows for robust classification and direct comparisons of kidney organoid datasets. Genome Med 2022. [PMID: 35189942 DOI: 10.1101/2021.01.20.427346] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/09/2023] Open
Abstract
BACKGROUND While single-cell transcriptional profiling has greatly increased our capacity to interrogate biology, accurate cell classification within and between datasets is a key challenge. This is particularly so in pluripotent stem cell-derived organoids which represent a model of a developmental system. Here, clustering algorithms and selected marker genes can fail to accurately classify cellular identity while variation in analyses makes it difficult to meaningfully compare datasets. Kidney organoids provide a valuable resource to understand kidney development and disease. However, direct comparison of relative cellular composition between protocols has proved challenging. Hence, an unbiased approach for classifying cell identity is required. METHODS The R package, scPred, was trained on multiple single cell RNA-seq datasets of human fetal kidney. A hierarchical model classified cellular subtypes into nephron, stroma and ureteric epithelial elements. This model, provided in the R package DevKidCC ( github.com/KidneyRegeneration/DevKidCC ), was then used to predict relative cell identity within published kidney organoid datasets generated using distinct cell lines and differentiation protocols, interrogating the impact of such variations. The package contains custom functions for the display of differential gene expression within cellular subtypes. RESULTS DevKidCC was used to directly compare between distinct kidney organoid protocols, identifying differences in relative proportions of cell types at all hierarchical levels of the model and highlighting variations in stromal and unassigned cell types, nephron progenitor prevalence and relative maturation of individual epithelial segments. Of note, DevKidCC was able to distinguish distal nephron from ureteric epithelium, cell types with overlapping profiles that have previously confounded analyses. When applied to a variation in protocol via the addition of retinoic acid, DevKidCC identified a consequential depletion of nephron progenitors. CONCLUSIONS The application of DevKidCC to kidney organoids reproducibly classifies component cellular identity within distinct single-cell datasets. The application of the tool is summarised in an interactive Shiny application, as are examples of the utility of in-built functions for data presentation. This tool will enable the consistent and rapid comparison of kidney organoid protocols, driving improvements in patterning to kidney endpoints and validating new approaches.
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Affiliation(s)
- Sean B Wilson
- Murdoch Children's Research Institute, Flemington Rd, Parkville, Victoria, Australia
- Department of Paediatrics, The University of Melbourne, Victoria, Parkville, Australia
| | - Sara E Howden
- Murdoch Children's Research Institute, Flemington Rd, Parkville, Victoria, Australia
- Department of Paediatrics, The University of Melbourne, Victoria, Parkville, Australia
| | | | - Aude Dorison
- Murdoch Children's Research Institute, Flemington Rd, Parkville, Victoria, Australia
| | - Jose Alquicira-Hernandez
- Garvan-Weizmann Centre for Cellular Genomics, The Kinghorn Cancer Centre, Darlinghurst, New South Wales, Australia
| | - Joseph E Powell
- Garvan-Weizmann Centre for Cellular Genomics, The Kinghorn Cancer Centre, Darlinghurst, New South Wales, Australia
- UNSW Cellular Genomics Futures Institute, University of New South Wales, Sydney, New South Wales, Australia
| | - Melissa H Little
- Murdoch Children's Research Institute, Flemington Rd, Parkville, Victoria, Australia.
- Department of Paediatrics, The University of Melbourne, Victoria, Parkville, Australia.
- Department of Anatomy and Neuroscience, The University of Melbourne, Victoria, Parkville, Australia.
- Novo Nordisk Foundation Centre for Stem Cell Medicine, Copenhagen, Denmark.
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44
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Wilson SB, Howden SE, Vanslambrouck JM, Dorison A, Alquicira-Hernandez J, Powell JE, Little MH. DevKidCC allows for robust classification and direct comparisons of kidney organoid datasets. Genome Med 2022; 14:19. [PMID: 35189942 PMCID: PMC8862535 DOI: 10.1186/s13073-022-01023-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Accepted: 02/08/2022] [Indexed: 12/20/2022] Open
Abstract
Background While single-cell transcriptional profiling has greatly increased our capacity to interrogate biology, accurate cell classification within and between datasets is a key challenge. This is particularly so in pluripotent stem cell-derived organoids which represent a model of a developmental system. Here, clustering algorithms and selected marker genes can fail to accurately classify cellular identity while variation in analyses makes it difficult to meaningfully compare datasets. Kidney organoids provide a valuable resource to understand kidney development and disease. However, direct comparison of relative cellular composition between protocols has proved challenging. Hence, an unbiased approach for classifying cell identity is required. Methods The R package, scPred, was trained on multiple single cell RNA-seq datasets of human fetal kidney. A hierarchical model classified cellular subtypes into nephron, stroma and ureteric epithelial elements. This model, provided in the R package DevKidCC (github.com/KidneyRegeneration/DevKidCC), was then used to predict relative cell identity within published kidney organoid datasets generated using distinct cell lines and differentiation protocols, interrogating the impact of such variations. The package contains custom functions for the display of differential gene expression within cellular subtypes. Results DevKidCC was used to directly compare between distinct kidney organoid protocols, identifying differences in relative proportions of cell types at all hierarchical levels of the model and highlighting variations in stromal and unassigned cell types, nephron progenitor prevalence and relative maturation of individual epithelial segments. Of note, DevKidCC was able to distinguish distal nephron from ureteric epithelium, cell types with overlapping profiles that have previously confounded analyses. When applied to a variation in protocol via the addition of retinoic acid, DevKidCC identified a consequential depletion of nephron progenitors. Conclusions The application of DevKidCC to kidney organoids reproducibly classifies component cellular identity within distinct single-cell datasets. The application of the tool is summarised in an interactive Shiny application, as are examples of the utility of in-built functions for data presentation. This tool will enable the consistent and rapid comparison of kidney organoid protocols, driving improvements in patterning to kidney endpoints and validating new approaches. Supplementary Information The online version contains supplementary material available at 10.1186/s13073-022-01023-z.
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Affiliation(s)
- Sean B Wilson
- Murdoch Children's Research Institute, Flemington Rd, Parkville, Victoria, Australia.,Department of Paediatrics, The University of Melbourne, Victoria, Parkville, Australia
| | - Sara E Howden
- Murdoch Children's Research Institute, Flemington Rd, Parkville, Victoria, Australia.,Department of Paediatrics, The University of Melbourne, Victoria, Parkville, Australia
| | | | - Aude Dorison
- Murdoch Children's Research Institute, Flemington Rd, Parkville, Victoria, Australia
| | - Jose Alquicira-Hernandez
- Garvan-Weizmann Centre for Cellular Genomics, The Kinghorn Cancer Centre, Darlinghurst, New South Wales, Australia
| | - Joseph E Powell
- Garvan-Weizmann Centre for Cellular Genomics, The Kinghorn Cancer Centre, Darlinghurst, New South Wales, Australia.,UNSW Cellular Genomics Futures Institute, University of New South Wales, Sydney, New South Wales, Australia
| | - Melissa H Little
- Murdoch Children's Research Institute, Flemington Rd, Parkville, Victoria, Australia. .,Department of Paediatrics, The University of Melbourne, Victoria, Parkville, Australia. .,Department of Anatomy and Neuroscience, The University of Melbourne, Victoria, Parkville, Australia. .,Novo Nordisk Foundation Centre for Stem Cell Medicine, Copenhagen, Denmark.
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45
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Little MH, Humphreys BD. Regrow or Repair: An Update on Potential Regenerative Therapies for the Kidney. J Am Soc Nephrol 2022; 33:15-32. [PMID: 34789545 PMCID: PMC8763179 DOI: 10.1681/asn.2021081073] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Fifteen years ago, this journal published a review outlining future options for regenerating the kidney. At that time, stem cell populations were being identified in multiple tissues, the concept of stem cell recruitment to a site of injury was of great interest, and the possibility of postnatal renal stem cells was growing in momentum. Since that time, we have seen the advent of human induced pluripotent stem cells, substantial advances in our capacity to both sequence and edit the genome, global and spatial transcriptional analysis down to the single-cell level, and a pandemic that has challenged our delivery of health care to all. This article will look back over this period of time to see how our view of kidney development, disease, repair, and regeneration has changed and envision a future for kidney regeneration and repair over the next 15 years.
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Affiliation(s)
- Melissa H. Little
- Murdoch Children’s Research Institute, Parkville, Melbourne, Victoria, Australia,Department of Paediatrics, Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Parkville, Melbourne, Victoria, Australia,Department of Anatomy and Neuroscience, The University of Melbourne, Parkville, Melbourne, Victoria, Australia
| | - Benjamin D. Humphreys
- Division of Nephrology, Department of Medicine, Washington University in St. Louis School of Medicine, Missouri,Department of Developmental Biology, Washington University in St. Louis School of Medicine, Missouri
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46
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Tikka P, Mercker M, Skovorodkin I, Saarela U, Vainio S, Ronkainen VP, Sluka JP, Glazier JA, Marciniak-Czochra A, Schaefer F. Computational modelling of nephron progenitor cell movement and aggregation during kidney organogenesis. Math Biosci 2021; 344:108759. [PMID: 34883105 DOI: 10.1016/j.mbs.2021.108759] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 11/08/2021] [Accepted: 11/10/2021] [Indexed: 10/19/2022]
Abstract
During early kidney organogenesis, nephron progenitor (NP) cells move from the tip to the corner region of the ureteric bud (UB) branches in order to form the pretubular aggregate, the early structure giving rise to nephron formation. NP cells derive from metanephric mesenchymal cells and physically interact with them during the movement. Chemotaxis and cell-cell adhesion differences are believed to drive the cell patterning during this critical period of organogenesis. However, the effect of these forces to the cell patterns and their respective movements are known in limited details. We applied a Cellular Potts Model to explore how these forces and organizations contribute to directed cell movement and aggregation. Model parameters were estimated based on fitting to experimental data obtained in ex vivo kidney explant and dissociation-reaggregation organoid culture studies. Our simulations indicated that optimal enrichment and aggregation of NP cells in the UB corner niche requires chemoattractant secretion from both the UB epithelial cells and the NP cells themselves, as well as differences in cell-cell adhesion energies. Furthermore, NP cells were observed, both experimentally and by modelling, to move at higher speed in the UB corner as compared to the tip region where they originated. The existence of different cell speed domains along the UB was confirmed using self-organizing map analysis. In summary, we saw faster NP cell movements near aggregation. The applicability of Cellular Potts Model approach to simulate cell movement and patterning was found to be good during for this early nephrogenesis process. Further refinement of the model should allow us to recapitulate the effects of developmental changes of cell phenotypes and molecular crosstalk during further organ development.
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Affiliation(s)
- Pauli Tikka
- Division of Pediatric Nephrology. Heidelberg University Center for Pediatrics and Adolescent Medicine, Heidelberg, Germany.
| | - Moritz Mercker
- Institute of Applied Mathematics (IAM) and Interdisciplinary Center of Scientific Computing (IWR), Mathematikon, Heidelberg University, Germany
| | - Ilya Skovorodkin
- Faculty of Biochemistry and Molecular Medicine, Biocenter Oulu, University of Oulu, Oulu, Finland
| | - Ulla Saarela
- Faculty of Biochemistry and Molecular Medicine, Biocenter Oulu, University of Oulu, Oulu, Finland
| | - Seppo Vainio
- Faculty of Biochemistry and Molecular Medicine, Biocenter Oulu, University of Oulu, Oulu, Finland
| | - Veli-Pekka Ronkainen
- Faculty of Biochemistry and Molecular Medicine, Biocenter Oulu, University of Oulu, Oulu, Finland
| | - James P Sluka
- Department of Intelligent Systems Engineering and Biocomplexity Institute, Indiana University, Bloomington, Indiana, USA
| | - James A Glazier
- Department of Intelligent Systems Engineering and Biocomplexity Institute, Indiana University, Bloomington, Indiana, USA
| | - Anna Marciniak-Czochra
- Institute of Applied Mathematics (IAM) and Interdisciplinary Center of Scientific Computing (IWR), Mathematikon, Heidelberg University, Germany
| | - Franz Schaefer
- Division of Pediatric Nephrology. Heidelberg University Center for Pediatrics and Adolescent Medicine, Heidelberg, Germany
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47
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Shroff UN, Gyarmati G, Izuhara A, Deepak S, Peti-Peterdi J. A new view of macula densa cell protein synthesis. Am J Physiol Renal Physiol 2021; 321:F689-F704. [PMID: 34693742 PMCID: PMC8714974 DOI: 10.1152/ajprenal.00222.2021] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 10/12/2021] [Accepted: 10/15/2021] [Indexed: 11/22/2022] Open
Abstract
Macula densa (MD) cells, a chief sensory cell type in the nephron, are endowed with unique microanatomic features including a high density of protein synthetic organelles and secretory vesicles in basal cell processes ("maculapodia") that suggest a so far unknown high rate of MD protein synthesis. This study aimed to explore the rate and regulation of MD protein synthesis and their effects on glomerular function using novel transgenic mouse models, newly established fluorescence cell biology techniques, and intravital microscopy. Sox2-tdTomato kidney tissue sections and an O-propargyl puromycin incorporation-based fluorescence imaging assay showed that MD cells have the highest level of protein synthesis within the kidney cortex followed by intercalated cells and podocytes. Genetic gain of function of mammalian target of rapamycin (mTOR) signaling specifically in MD cells (in MD-mTORgof mice) or their physiological activation by low-salt diet resulted in further significant increases in the synthesis of MD proteins. Specifically, these included both classic and recently identified MD-specific proteins such as cyclooxygenase 2, microsomal prostaglandin E2 synthase 1, and pappalysin 2. Intravital imaging of the kidney using multiphoton microscopy showed significant increases in afferent and efferent arteriole and glomerular capillary diameters and blood flow in MD-mTORgof mice coupled with an elevated glomerular filtration rate. The presently identified high rate of MD protein synthesis that is regulated by mTOR signaling is a novel component of the physiological activation and glomerular hemodynamic regulatory functions of MD cells that remains to be fully characterized.NEW & NOTEWORTHY This study discovered the high rate of protein synthesis in macula densa (MD) cells by applying direct imaging techniques with single cell resolution. Physiological activation and mammalian target of rapamycin signaling played important regulatory roles in this process. This new feature is a novel component of the tubuloglomerular cross talk and glomerular hemodynamic regulatory functions of MD cells. Future work is needed to elucidate the nature and (patho)physiological role of the specific proteins synthesized by MD cells.
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Affiliation(s)
- Urvi Nikhil Shroff
- Department of Physiology and Neuroscience, Zilkha Neurogenetic Institute, University of Southern California, Los Angeles, California
| | - Georgina Gyarmati
- Department of Physiology and Neuroscience, Zilkha Neurogenetic Institute, University of Southern California, Los Angeles, California
| | - Audrey Izuhara
- Department of Physiology and Neuroscience, Zilkha Neurogenetic Institute, University of Southern California, Los Angeles, California
| | - Sachin Deepak
- Department of Physiology and Neuroscience, Zilkha Neurogenetic Institute, University of Southern California, Los Angeles, California
- Department of Medicine, Zilkha Neurogenetic Institute, University of Southern California, Los Angeles, California
| | - János Peti-Peterdi
- Department of Physiology and Neuroscience, Zilkha Neurogenetic Institute, University of Southern California, Los Angeles, California
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48
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Human induced pluripotent stem cell-derived kidney organoids toward clinical implementations. CURRENT OPINION IN BIOMEDICAL ENGINEERING 2021. [DOI: 10.1016/j.cobme.2021.100346] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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49
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Glasauer SMK, Triemer T, Neef AB, Neuhauss SCF, Luedtke NW. DNA template strand segregation in developing zebrafish. Cell Chem Biol 2021; 28:1638-1647.e4. [PMID: 34592171 DOI: 10.1016/j.chembiol.2021.09.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 06/26/2021] [Accepted: 09/10/2021] [Indexed: 12/01/2022]
Abstract
Asymmetric inheritance of sister chromatids has long been predicted to be linked to discordant fates of daughter cells and even hypothesized to minimize accumulation of mutations in stem cells. Here, we use (2'S)-2'-deoxy-2'-fluoro-5-ethynyluridine (F-ara-EdU), bromodeoxyuridine (BrdU), and light sheet microscopy to track embryonic DNA in whole zebrafish. Larval development results in rapid depletion of older DNA template strands from stem cell niches in the retina, brain, and intestine. Prolonged label retention occurs in quiescent progenitors that resume replication in later development. High-resolution microscopy reveals no evidence of asymmetric template strand segregation in >100 daughter cell pairs, making it improbable that asymmetric DNA segregation prevents mutational burden according to the immortal strand hypothesis in developing zebrafish.
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Affiliation(s)
- Stella M K Glasauer
- Department of Chemistry, University of Zurich, 8057 Zurich, Switzerland; Neuroscience Research Institute and Department of Molecular, Cellular and Developmental Biology, University of California Santa Barbara, Santa Barbara CA 93106, USA
| | - Therese Triemer
- Department of Chemistry, University of Zurich, 8057 Zurich, Switzerland
| | - Anne B Neef
- Department of Chemistry, University of Zurich, 8057 Zurich, Switzerland
| | - Stephan C F Neuhauss
- Institute of Molecular Life Sciences, University of Zurich, 8057 Zurich, Switzerland.
| | - Nathan W Luedtke
- Department of Chemistry, University of Zurich, 8057 Zurich, Switzerland; Department of Pharmacology and Therapeutics, McGill University, Montreal, QC H3G 1Y6, Canada; Department of Chemistry, McGill University, Montreal, QC H3A 0B8, Canada.
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50
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Jarmas AE, Brunskill EW, Chaturvedi P, Salomonis N, Kopan R. Progenitor translatome changes coordinated by Tsc1 increase perception of Wnt signals to end nephrogenesis. Nat Commun 2021; 12:6332. [PMID: 34732708 PMCID: PMC8566581 DOI: 10.1038/s41467-021-26626-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 10/17/2021] [Indexed: 11/29/2022] Open
Abstract
Mammalian nephron endowment is determined by the coordinated cessation of nephrogenesis in independent niches. Here we report that translatome analysis in Tsc1+/- nephron progenitor cells from mice with elevated nephron numbers reveals how differential translation of Wnt antagonists over agonists tips the balance between self-renewal and differentiation. Wnt agonists are poorly translated in young niches, resulting in an environment with low R-spondin and high Fgf20 promoting self-renewal. In older niches we find increased translation of Wnt agonists, including R-spondin and the signalosome-promoting Tmem59, and low Fgf20, promoting differentiation. This suggests that the tipping point for nephron progenitor exit from the niche is controlled by the gradual increase in stability and possibly clustering of Wnt/Fzd complexes in individual cells, enhancing the response to ureteric bud-derived Wnt9b inputs and driving synchronized differentiation. As predicted by these findings, removing one Rspo3 allele in nephron progenitors delays cessation and increases nephron numbers in vivo.
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Affiliation(s)
- Alison E Jarmas
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Eric W Brunskill
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Praneet Chaturvedi
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
- Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Nathan Salomonis
- Division of Biomedical Informatics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Raphael Kopan
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA.
- Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.
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