1
|
Guo C, Jardin BD, Lin J, Ambroise RL, Wang Z, Yang L, Mazumdar N, Lu F, Ma Q, Cao Y, Liu C, Liu X, Lan F, Zhao M, Xiao H, Dong E, Pu WT, Guo Y. In vivo proximity proteomics uncovers palmdelphin (PALMD) as a Z-line-associated mitigator of isoproterenol-induced cardiac injury. bioRxiv 2023:2023.12.06.570334. [PMID: 38106146 PMCID: PMC10723331 DOI: 10.1101/2023.12.06.570334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Z-lines are core ultrastructural organizers of cardiomyocytes that modulate many facets of cardiac pathogenesis. Yet a comprehensive proteomic atlas of Z-line-associated components remain incomplete. Here, we established an adeno-associated virus (AAV)-delivered, cardiomyocyte-specific, proximity-labeling approach to characterize the Z-line proteome in vivo. We found palmdelphin (PALMD) as a novel Z-line-associated protein in both adult murine cardiomyocytes and human pluripotent stem cell-derived cardiomyocytes. Germline and cardiomyocyte-specific palmd knockout mice were grossly normal at baseline but exhibited compromised cardiac hypertrophy and aggravated cardiac injury upon long-term isoproterenol treatment. By contrast, cardiomyocyte-specific PALMD overexpression was sufficient to mitigate isoproterenol-induced cardiac injury. PALMD ablation perturbed transverse tubules (T-tubules) and their association with sarcoplasmic reticulum, which formed the Z-line-associated junctional membrane complex (JMC) essential for calcium handling and cardiac function. These phenotypes were associated with disrupted localization of T-tubule markers caveolin-3 (CAV3) and junctophilin-2 (JPH2) and the reduction of nexilin (NEXN) protein, a crucial Z-line-associated protein that is essential for both Z-line and JMC structures and functions. PALMD was found to interact with NEXN and enhance its protein stability while the Nexn mRNA level was not affected. Together, this study discovered PALMD as a potential target for myocardial protection and highlighted in vivo proximity proteomics as a powerful approach to nominate novel players regulating cardiac pathogenesis. Highlights In vivo proximity proteomics uncover novel Z-line components that are undetected in in vitro proximity proteomics in cardiomyocytes.PALMD is a novel Z-line-associated protein that is dispensable for baseline cardiomyocyte function in vivo.PALMD mitigates cardiac dysfunction and myocardial injury after repeated isoproterenol insults.PALMD stabilizes NEXN, an essential Z-line-associated regulator of the junctional membrane complex and cardiac systolic function.
Collapse
|
2
|
Guo Y, Cao Y, Jardin BD, Mazumdar N, Guo C, Yang L, Lin J, Chen Z, Ma Q, Zhao M, Dong E, Pu WT. A shared role of the myocardin-family transcriptional coactivators in cardiomyocyte maturation. Sci China Life Sci 2023; 66:2939-2942. [PMID: 37574527 PMCID: PMC10914308 DOI: 10.1007/s11427-023-2385-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 06/05/2023] [Indexed: 08/15/2023]
Affiliation(s)
- Yuxuan Guo
- Peking University Health Science Center, School of Basic Medical Sciences, Beijing, 100191, China.
- Peking University Institute of Cardiovascular Sciences, Beijing, 100191, China.
- State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, 100191, China.
- Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, 100191, China.
| | - Yangpo Cao
- Boston Children's Hospital, Department of Cardiology, Boston, MA, 02115, USA
| | - Blake D Jardin
- Boston Children's Hospital, Department of Cardiology, Boston, MA, 02115, USA
| | - Neil Mazumdar
- Boston Children's Hospital, Department of Cardiology, Boston, MA, 02115, USA
| | - Congting Guo
- Peking University Health Science Center, School of Basic Medical Sciences, Beijing, 100191, China
- Peking University Institute of Cardiovascular Sciences, Beijing, 100191, China
| | - Luzi Yang
- Peking University Health Science Center, School of Basic Medical Sciences, Beijing, 100191, China
- Peking University Institute of Cardiovascular Sciences, Beijing, 100191, China
| | - Junsen Lin
- Peking University Health Science Center, School of Basic Medical Sciences, Beijing, 100191, China
- Peking University Institute of Cardiovascular Sciences, Beijing, 100191, China
| | - Zhan Chen
- Peking University Health Science Center, School of Basic Medical Sciences, Beijing, 100191, China
- Peking University Institute of Cardiovascular Sciences, Beijing, 100191, China
| | - Qing Ma
- Boston Children's Hospital, Department of Cardiology, Boston, MA, 02115, USA
| | - Mingming Zhao
- Peking University Third Hospital, Department of Cardiology and Institute of Vascular Medicine, Beijing, 100191, China
- Research Unit of Medical Science Research Management/Basic and Clinical Research of Metabolic Cardiovascular Diseases, Chinese Academy of Medical Sciences, Haihe Laboratory of Cell Ecosystem, Beijing, 100191, China
| | - Erdan Dong
- Peking University Institute of Cardiovascular Sciences, Beijing, 100191, China
- State Key Laboratory of Vascular Homeostasis and Remodeling, Peking University, Beijing, 100191, China
- Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, 100191, China
- Peking University Third Hospital, Department of Cardiology and Institute of Vascular Medicine, Beijing, 100191, China
- Research Unit of Medical Science Research Management/Basic and Clinical Research of Metabolic Cardiovascular Diseases, Chinese Academy of Medical Sciences, Haihe Laboratory of Cell Ecosystem, Beijing, 100191, China
- National Health Commission Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Beijing, 100191, China
| | - William T Pu
- Boston Children's Hospital, Department of Cardiology, Boston, MA, 02115, USA.
- Harvard Stem Cell Institute, Cambridge, MA, 02138, USA.
| |
Collapse
|
3
|
Guo Y, Cao Y, Jardin BD, Zhang X, Zhou P, Guatimosim S, Lin J, Chen Z, Zhang Y, Mazumdar N, Lu F, Ma Q, Lu YW, Zhao M, Wang DZ, Dong E, Pu WT. Ryanodine receptor 2 (RYR2) dysfunction activates the unfolded protein response and perturbs cardiomyocyte maturation. Cardiovasc Res 2023; 119:221-235. [PMID: 35576474 DOI: 10.1093/cvr/cvac077] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Revised: 04/03/2022] [Accepted: 05/05/2022] [Indexed: 11/15/2022] Open
Abstract
AIMS Calcium-handling capacity is a major gauge of cardiomyocyte maturity. Ryanodine receptor 2 (RYR2) is the pre-dominant calcium channel that releases calcium from the sarcoplasmic reticulum/endoplasmic reticulum (SR/ER) to activate cardiomyocyte contraction. Although RYR2 was previously implied as a key regulator of cardiomyocyte maturation, the mechanisms remain unclear. The aim of this study is to solve this problem. METHODS AND RESULTS We performed Cas9/AAV9-mediated somatic mutagenesis to knockout RYR2 specifically in cardiomyocytes in mice. We conducted a genetic mosaic analysis to dissect the cell-autonomous function of RYR2 during cardiomyocyte maturation. We found that RYR2 depletion triggered ultrastructural and transcriptomic defects relevant to cardiomyocyte maturation. These phenotypes were associated with the drastic activation of ER stress pathways. The ER stress alleviator tauroursodeoxycholic acid partially rescued the defects in RYR2-depleted cardiomyocytes. Overexpression of ATF4, a key ER stress transcription factor, recapitulated defects in RYR2-depleted cells. Integrative analysis of RNA-Seq and bioChIP-Seq data revealed that protein biosynthesis-related genes are the major direct downstream targets of ATF4. CONCLUSION RYR2-regulated ER homeostasis is essential for cardiomyocyte maturation. Severe ER stress perturbs cardiomyocyte maturation primarily through ATF4 activation. The major downstream effector genes of ATF4 are related to protein biosynthesis.
Collapse
Affiliation(s)
- Yuxuan Guo
- Peking University Health Science Center, School of Basic Medical Sciences, Beijing 100191, China
- Institute of Cardiovascular Sciences, Peking University, Beijing 100191, China
- Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing 100191, China
- Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing 100191, China
| | - Yangpo Cao
- Department of Cardiology, Boston Children's Hospital, 300 Longwood Ave, Boston, MA 02115, USA
| | - Blake D Jardin
- Department of Cardiology, Boston Children's Hospital, 300 Longwood Ave, Boston, MA 02115, USA
| | - Xiaoran Zhang
- Department of Cardiology, Boston Children's Hospital, 300 Longwood Ave, Boston, MA 02115, USA
| | - Pingzhu Zhou
- Department of Cardiology, Boston Children's Hospital, 300 Longwood Ave, Boston, MA 02115, USA
| | - Silvia Guatimosim
- Department of Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Belo Horizonte MG - CEP 31270-901, Brazil
| | - Junsen Lin
- Peking University Health Science Center, School of Basic Medical Sciences, Beijing 100191, China
- Institute of Cardiovascular Sciences, Peking University, Beijing 100191, China
- Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing 100191, China
- Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing 100191, China
| | - Zhan Chen
- Peking University Health Science Center, School of Basic Medical Sciences, Beijing 100191, China
- Institute of Cardiovascular Sciences, Peking University, Beijing 100191, China
- Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing 100191, China
- Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing 100191, China
| | - Yueyang Zhang
- Peking University Health Science Center, School of Basic Medical Sciences, Beijing 100191, China
- Institute of Cardiovascular Sciences, Peking University, Beijing 100191, China
- Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing 100191, China
- Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing 100191, China
| | - Neil Mazumdar
- Department of Cardiology, Boston Children's Hospital, 300 Longwood Ave, Boston, MA 02115, USA
| | - Fujian Lu
- Department of Cardiology, Boston Children's Hospital, 300 Longwood Ave, Boston, MA 02115, USA
| | - Qing Ma
- Department of Cardiology, Boston Children's Hospital, 300 Longwood Ave, Boston, MA 02115, USA
| | - Yao-Wei Lu
- Department of Cardiology, Boston Children's Hospital, 300 Longwood Ave, Boston, MA 02115, USA
| | - Mingming Zhao
- Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing 100191, China
- Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing 100191, China
- Department of Cardiology and Institute of Vascular Medicine, Peking University Third Hospital, Beijing 100191, China
- NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Beijing 100191, China
| | - Da-Zhi Wang
- Department of Cardiology, Boston Children's Hospital, 300 Longwood Ave, Boston, MA 02115, USA
| | - Erdan Dong
- Institute of Cardiovascular Sciences, Peking University, Beijing 100191, China
- Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing 100191, China
- Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing 100191, China
- Department of Cardiology and Institute of Vascular Medicine, Peking University Third Hospital, Beijing 100191, China
- NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Beijing 100191, China
| | - William T Pu
- Department of Cardiology, Boston Children's Hospital, 300 Longwood Ave, Boston, MA 02115, USA
- Harvard Stem Cell Institute, 7 Divinity Avenue, Cambridge, MA 02138, USA
| |
Collapse
|
4
|
Zhou P, Zhang Y, Sethi I, Ye L, Trembley MA, Cao Y, Akerberg BN, Xiao F, Zhang X, Li K, Jardin BD, Mazumdar N, Ma Q, He A, Zhou B, Pu WT. GATA4 Regulates Developing Endocardium Through Interaction With ETS1. Circ Res 2022; 131:e152-e168. [PMID: 36263775 PMCID: PMC9669226 DOI: 10.1161/circresaha.120.318102] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 10/07/2022] [Indexed: 01/26/2023]
Abstract
BACKGROUND The pioneer transcription factor (TF) GATA4 (GATA Binding Protein 4) is expressed in multiple cardiovascular lineages and is essential for heart development. GATA4 lineage-specific occupancy in the developing heart underlies its lineage specific activities. Here, we characterized GATA4 chromatin occupancy in cardiomyocyte and endocardial lineages, dissected mechanisms that control lineage specific occupancy, and analyzed GATA4 regulation of endocardial gene expression. METHODS We mapped GATA4 chromatin occupancy in cardiomyocyte and endocardial cells of embryonic day 12.5 (E12.5) mouse heart using lineage specific, Cre-activated biotinylation of GATA4. Regulation of GATA4 pioneering activity was studied in cell lines stably overexpressing GATA4. GATA4 regulation of endocardial gene expression was analyzed using single cell RNA sequencing and luciferase reporter assays. RESULTS Cardiomyocyte-selective and endothelial-selective GATA4 occupied genomic regions had features of lineage specific enhancers. Footprints within cardiomyocyte- and endothelial-selective GATA4 regions were enriched for NKX2-5 (NK2 homeobox 5) and ETS1 (ETS Proto-Oncogene 1) motifs, respectively, and both of these TFs interacted with GATA4 in co-immunoprecipitation assays. In stable NIH3T3 cell lines expressing GATA4 with or without NKX2-5 or ETS1, the partner TFs re-directed GATA4 pioneer binding and augmented its ability to open previously inaccessible regions, with ETS1 displaying greater potency as a pioneer partner than NKX2-5. Single-cell RNA sequencing of embryonic hearts with endothelial cell-specific Gata4 inactivation identified Gata4-regulated endocardial genes, which were adjacent to GATA4-bound, endothelial regions enriched for both GATA4 and ETS1 motifs. In reporter assays, GATA4 and ETS1 cooperatively stimulated endothelial cell enhancer activity. CONCLUSIONS Lineage selective non-pioneer TFs NKX2-5 and ETS1 guide the activity of pioneer TF GATA4 to bind and open chromatin and create active enhancers and mechanistically link ETS1 interaction to GATA4 regulation of endocardial development.
Collapse
Affiliation(s)
- Pingzhu Zhou
- Department of Cardiology, Boston Children’s Hospital, 300 Longwood Ave., Boston, MA 02115
| | - Yan Zhang
- Department of Cardiology, Boston Children’s Hospital, 300 Longwood Ave., Boston, MA 02115
| | - Isha Sethi
- Department of Cardiology, Boston Children’s Hospital, 300 Longwood Ave., Boston, MA 02115
| | - Lincai Ye
- Department of Thoracic and Cardiovascular Surgery, Shanghai Children’s Medical Center, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Michael A. Trembley
- Department of Cardiology, Boston Children’s Hospital, 300 Longwood Ave., Boston, MA 02115
| | - Yangpo Cao
- Department of Cardiology, Boston Children’s Hospital, 300 Longwood Ave., Boston, MA 02115
| | - Brynn N. Akerberg
- Department of Cardiology, Boston Children’s Hospital, 300 Longwood Ave., Boston, MA 02115
| | - Feng Xiao
- Department of Cardiology, Boston Children’s Hospital, 300 Longwood Ave., Boston, MA 02115
| | - Xiaoran Zhang
- Department of Cardiology, Boston Children’s Hospital, 300 Longwood Ave., Boston, MA 02115
| | - Kai Li
- Department of Cardiology, Boston Children’s Hospital, 300 Longwood Ave., Boston, MA 02115
| | - Blake D. Jardin
- Department of Cardiology, Boston Children’s Hospital, 300 Longwood Ave., Boston, MA 02115
| | - Neil Mazumdar
- Department of Cardiology, Boston Children’s Hospital, 300 Longwood Ave., Boston, MA 02115
| | - Qing Ma
- Department of Cardiology, Boston Children’s Hospital, 300 Longwood Ave., Boston, MA 02115
| | - Aibin He
- State Key Laboratory of Membrane Biology, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Institute of Molecular Medicine, Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China
| | - Bin Zhou
- State Key Laboratory of Cell Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China
| | - William T. Pu
- Department of Cardiology, Boston Children’s Hospital, 300 Longwood Ave., Boston, MA 02115
- Harvard Stem Cell Institute, 7 Divinity Avenue, Cambridge, MA 02138
| |
Collapse
|
5
|
Lu F, Ma Q, Xie W, Liou CL, Zhang D, Sweat ME, Jardin BD, Naya FJ, Guo Y, Cheng H, Pu WT. CMYA5 establishes cardiac dyad architecture and positioning. Nat Commun 2022; 13:2185. [PMID: 35449169 PMCID: PMC9023524 DOI: 10.1038/s41467-022-29902-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 04/05/2022] [Indexed: 11/18/2022] Open
Abstract
Cardiac excitation-contraction coupling requires dyads, the nanoscopic microdomains formed adjacent to Z-lines by apposition of transverse tubules and junctional sarcoplasmic reticulum. Disruption of dyad architecture and function are common features of diseased cardiomyocytes. However, little is known about the mechanisms that modulate dyad organization during cardiac development, homeostasis, and disease. Here, we use proximity proteomics in intact, living hearts to identify proteins enriched near dyads. Among these proteins is CMYA5, an under-studied striated muscle protein that co-localizes with Z-lines, junctional sarcoplasmic reticulum proteins, and transverse tubules in mature cardiomyocytes. During cardiac development, CMYA5 positioning adjacent to Z-lines precedes junctional sarcoplasmic reticulum positioning or transverse tubule formation. CMYA5 ablation disrupts dyad architecture, dyad positioning at Z-lines, and junctional sarcoplasmic reticulum Ca2+ release, leading to cardiac dysfunction and inability to tolerate pressure overload. These data provide mechanistic insights into cardiomyopathy pathogenesis by demonstrating that CMYA5 anchors junctional sarcoplasmic reticulum to Z-lines, establishes dyad architecture, and regulates dyad Ca2+ release.
Collapse
Affiliation(s)
- Fujian Lu
- Department of Cardiology, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA
| | - Qing Ma
- Department of Cardiology, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA
| | - Wenjun Xie
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Institute of Health and Rehabilitation Science, School of Life Science and Technology, Xi'an Jiaotong University, 710049, Xi'an, Shanxi, China
| | - Carter L Liou
- Department of Cardiology, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA
| | - Donghui Zhang
- Department of Cardiology, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Science, Hubei University, 430062, Wuhan, Hubei, China
| | - Mason E Sweat
- Department of Cardiology, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA
| | - Blake D Jardin
- Department of Cardiology, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA
| | - Francisco J Naya
- Department of Biology, Program in Cell and Molecular Biology, Boston University, Boston, MA, 02215, USA
| | - Yuxuan Guo
- Department of Cardiology, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA
- Peking University Health Science Center, School of Basic Medical Sciences, The Institute of Cardiovascular Sciences, Key Laboratory of Molecular Cardiovascular Science of Ministry of Education, 100191, Beijing, China
| | - Heping Cheng
- State Key Laboratory of Membrane Biology, Institute of Molecular Medicine, Peking-Tsinghua Center for Life Sciences, Peking University, 100871, Beijing, China
| | - William T Pu
- Department of Cardiology, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA.
- Harvard Stem Cell Institute, 7 Divinity Avenue, Cambridge, MA, 02138, USA.
| |
Collapse
|
6
|
Guo Y, Jardin BD, Zhou P, Sethi I, Akerberg BN, Toepfer CN, Ai Y, Li Y, Ma Q, Guatimosim S, Hu Y, Varuzhanyan G, VanDusen NJ, Zhang D, Chan DC, Yuan GC, Seidman CE, Seidman JG, Pu WT. Hierarchical and stage-specific regulation of murine cardiomyocyte maturation by serum response factor. Nat Commun 2018; 9:3837. [PMID: 30242271 PMCID: PMC6155060 DOI: 10.1038/s41467-018-06347-2] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 08/30/2018] [Indexed: 02/06/2023] Open
Abstract
After birth, cardiomyocytes (CM) acquire numerous adaptations in order to efficiently pump blood throughout an animal's lifespan. How this maturation process is regulated and coordinated is poorly understood. Here, we perform a CRISPR/Cas9 screen in mice and identify serum response factor (SRF) as a key regulator of CM maturation. Mosaic SRF depletion in neonatal CMs disrupts many aspects of their maturation, including sarcomere expansion, mitochondrial biogenesis, transverse-tubule formation, and cellular hypertrophy. Maintenance of maturity in adult CMs is less dependent on SRF. This stage-specific activity is associated with developmentally regulated SRF chromatin occupancy and transcriptional regulation. SRF directly activates genes that regulate sarcomere assembly and mitochondrial dynamics. Perturbation of sarcomere assembly but not mitochondrial dynamics recapitulates SRF knockout phenotypes. SRF overexpression also perturbs CM maturation. Together, these data indicate that carefully balanced SRF activity is essential to promote CM maturation through a hierarchy of cellular processes orchestrated by sarcomere assembly.
Collapse
Affiliation(s)
- Yuxuan Guo
- Department of Cardiology, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA
| | - Blake D Jardin
- Department of Cardiology, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA
- Department of Biology, Boston University, 5 Cummington Mall, Boston, MA, 02215, USA
| | - Pingzhu Zhou
- Department of Cardiology, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA
| | - Isha Sethi
- Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, 450 Brookline Avenue, Boston, MA, 02215, USA
| | - Brynn N Akerberg
- Department of Cardiology, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA
| | - Christopher N Toepfer
- Department of Genetics, Harvard Medical School, 77 Avenue Louis Pasteur, Boston, MA, 02115, USA
- Radcliffe Department of Medicine and Wellcome Trust Centre for Human Genetics, University of Oxford, Roosevelt Drive, Oxford, OX3 7BN, UK
| | - Yulan Ai
- Department of Cardiology, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA
| | - Yifei Li
- Department of Cardiology, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, Department of Pediatrics, West China Second University Hospital, Sichuan University, 610041, Chengdu, Sichuan, China
| | - Qing Ma
- Department of Cardiology, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA
| | - Silvia Guatimosim
- Department of Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, Belo Horizonte, MG, CEP: 31270-901, Brazil
| | - Yongwu Hu
- Department of Cardiology, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA
- Wenzhou Medical University, School of Life Sciences, Wenzhou, China
| | - Grigor Varuzhanyan
- Division of Biology and Biological Engineering, California Institute of Technology, 1200 East California Boulevard, MC 114-96, Pasadena, CA, 91125, USA
| | - Nathan J VanDusen
- Department of Cardiology, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA
| | - Donghui Zhang
- Department of Cardiology, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA
- Hubei Collaborative Innovation Center for Green Transformation of Bio-resources, Hubei Key Laboratory of Industrial Biotechnology, College of Life Sciences, Hubei University, 430062, Wuhan, China
| | - David C Chan
- Division of Biology and Biological Engineering, California Institute of Technology, 1200 East California Boulevard, MC 114-96, Pasadena, CA, 91125, USA
| | - Guo-Cheng Yuan
- Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, 450 Brookline Avenue, Boston, MA, 02215, USA
| | - Christine E Seidman
- Department of Genetics, Harvard Medical School, 77 Avenue Louis Pasteur, Boston, MA, 02115, USA
- Division of Cardiovascular Medicine, Brigham and Women's Hospital, 75 Francis Street, Boston, MA, 02115, USA
- Howard Hughes Medical Institute, 4000 Jones Bridge Road, Chevy Chase, MD, 20815, USA
| | - Jonathan G Seidman
- Department of Genetics, Harvard Medical School, 77 Avenue Louis Pasteur, Boston, MA, 02115, USA
| | - William T Pu
- Department of Cardiology, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02115, USA.
- Harvard Stem Cell Institute, 7 Divinity Avenue, Cambridge, MA, 02138, USA.
| |
Collapse
|
7
|
Guo Y, VanDusen NJ, Zhang L, Gu W, Sethi I, Guatimosim S, Ma Q, Jardin BD, Ai Y, Zhang D, Chen B, Guo A, Yuan GC, Song LS, Pu WT. Analysis of Cardiac Myocyte Maturation Using CASAAV, a Platform for Rapid Dissection of Cardiac Myocyte Gene Function In Vivo. Circ Res 2017; 120:1874-1888. [PMID: 28356340 PMCID: PMC5466492 DOI: 10.1161/circresaha.116.310283] [Citation(s) in RCA: 91] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 03/22/2017] [Accepted: 03/29/2017] [Indexed: 11/16/2022]
Abstract
RATIONALE Loss-of-function studies in cardiac myocytes (CMs) are currently limited by the need for appropriate conditional knockout alleles. The factors that regulate CM maturation are poorly understood. Previous studies on CM maturation have been confounded by heart dysfunction caused by whole organ gene inactivation. OBJECTIVE To develop a new technical platform to rapidly characterize cell-autonomous gene function in postnatal murine CMs and apply it to identify genes that regulate transverse tubules (T-tubules), a hallmark of mature CMs. METHODS AND RESULTS We developed CRISPR/Cas9/AAV9-based somatic mutagenesis, a platform in which AAV9 delivers tandem guide RNAs targeting a gene of interest and cardiac troponin-T promoter-driven Cre to RosaCas9GFP/Cas9GFP neonatal mice. When directed against junctophilin-2 (Jph2), a gene previously implicated in T-tubule maturation, we achieved efficient, rapid, and CM-specific JPH2 depletion. High-dose AAV9 ablated JPH2 in 64% CMs and caused lethal heart failure, whereas low-dose AAV9 ablated JPH2 in 22% CMs and preserved normal heart function. In the context of preserved heart function, CMs lacking JPH2 developed T-tubules that were nearly morphologically normal, indicating that JPH2 does not have a major, cell-autonomous role in T-tubule maturation. However, in hearts with severe dysfunction, both adeno-associated virus-transduced and nontransduced CMs exhibited T-tubule disruption, which was more severe in the transduced subset. These data indicate that cardiac dysfunction disrupts T-tubule structure and that JPH2 protects T-tubules in this context. We then used CRISPR/Cas9/AAV9-based somatic mutagenesis to screen 8 additional genes for required, cell-autonomous roles in T-tubule formation. We identified RYR2 (Ryanodine Receptor-2) as a novel, cell-autonomously required T-tubule maturation factor. CONCLUSIONS CRISPR/Cas9/AAV9-based somatic mutagenesis is a powerful tool to study cell-autonomous gene functions. Genetic mosaics are invaluable to accurately define cell-autonomous gene function. JPH2 has a minor role in normal T-tubule maturation but is required to stabilize T-tubules in the failing heart. RYR2 is a novel T-tubule maturation factor.
Collapse
Affiliation(s)
- Yuxuan Guo
- From the Cardiology, Boston Children's Hospital, MA (Y.G., N.J.V., Q.M., B.D.J., Y.A., D.Z., W.T.P.); Institute of Basic Medicine (L.Z.) and Pharmacology, School of Pharmacy (W.G.), Shanghai University of Traditional Chinese Medicine, China; Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, MA (I.S., G.-C.Y.); Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil (S.G.); Cardiovascular Medicine, Department of Internal Medicine, François M. Abboud Cardiovascular Research Center, University of Iowa Carver College of Medicine, Iowa City (B.C., A.G., L.-S.S.); Veterans Affairs Medical Center, Iowa City (L.-S.S.); and Harvard Stem Cell Institute, Cambridge, MA (W.T.P.)
| | - Nathan J VanDusen
- From the Cardiology, Boston Children's Hospital, MA (Y.G., N.J.V., Q.M., B.D.J., Y.A., D.Z., W.T.P.); Institute of Basic Medicine (L.Z.) and Pharmacology, School of Pharmacy (W.G.), Shanghai University of Traditional Chinese Medicine, China; Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, MA (I.S., G.-C.Y.); Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil (S.G.); Cardiovascular Medicine, Department of Internal Medicine, François M. Abboud Cardiovascular Research Center, University of Iowa Carver College of Medicine, Iowa City (B.C., A.G., L.-S.S.); Veterans Affairs Medical Center, Iowa City (L.-S.S.); and Harvard Stem Cell Institute, Cambridge, MA (W.T.P.)
| | - Lina Zhang
- From the Cardiology, Boston Children's Hospital, MA (Y.G., N.J.V., Q.M., B.D.J., Y.A., D.Z., W.T.P.); Institute of Basic Medicine (L.Z.) and Pharmacology, School of Pharmacy (W.G.), Shanghai University of Traditional Chinese Medicine, China; Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, MA (I.S., G.-C.Y.); Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil (S.G.); Cardiovascular Medicine, Department of Internal Medicine, François M. Abboud Cardiovascular Research Center, University of Iowa Carver College of Medicine, Iowa City (B.C., A.G., L.-S.S.); Veterans Affairs Medical Center, Iowa City (L.-S.S.); and Harvard Stem Cell Institute, Cambridge, MA (W.T.P.)
| | - Weiliang Gu
- From the Cardiology, Boston Children's Hospital, MA (Y.G., N.J.V., Q.M., B.D.J., Y.A., D.Z., W.T.P.); Institute of Basic Medicine (L.Z.) and Pharmacology, School of Pharmacy (W.G.), Shanghai University of Traditional Chinese Medicine, China; Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, MA (I.S., G.-C.Y.); Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil (S.G.); Cardiovascular Medicine, Department of Internal Medicine, François M. Abboud Cardiovascular Research Center, University of Iowa Carver College of Medicine, Iowa City (B.C., A.G., L.-S.S.); Veterans Affairs Medical Center, Iowa City (L.-S.S.); and Harvard Stem Cell Institute, Cambridge, MA (W.T.P.)
| | - Isha Sethi
- From the Cardiology, Boston Children's Hospital, MA (Y.G., N.J.V., Q.M., B.D.J., Y.A., D.Z., W.T.P.); Institute of Basic Medicine (L.Z.) and Pharmacology, School of Pharmacy (W.G.), Shanghai University of Traditional Chinese Medicine, China; Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, MA (I.S., G.-C.Y.); Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil (S.G.); Cardiovascular Medicine, Department of Internal Medicine, François M. Abboud Cardiovascular Research Center, University of Iowa Carver College of Medicine, Iowa City (B.C., A.G., L.-S.S.); Veterans Affairs Medical Center, Iowa City (L.-S.S.); and Harvard Stem Cell Institute, Cambridge, MA (W.T.P.)
| | - Silvia Guatimosim
- From the Cardiology, Boston Children's Hospital, MA (Y.G., N.J.V., Q.M., B.D.J., Y.A., D.Z., W.T.P.); Institute of Basic Medicine (L.Z.) and Pharmacology, School of Pharmacy (W.G.), Shanghai University of Traditional Chinese Medicine, China; Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, MA (I.S., G.-C.Y.); Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil (S.G.); Cardiovascular Medicine, Department of Internal Medicine, François M. Abboud Cardiovascular Research Center, University of Iowa Carver College of Medicine, Iowa City (B.C., A.G., L.-S.S.); Veterans Affairs Medical Center, Iowa City (L.-S.S.); and Harvard Stem Cell Institute, Cambridge, MA (W.T.P.)
| | - Qing Ma
- From the Cardiology, Boston Children's Hospital, MA (Y.G., N.J.V., Q.M., B.D.J., Y.A., D.Z., W.T.P.); Institute of Basic Medicine (L.Z.) and Pharmacology, School of Pharmacy (W.G.), Shanghai University of Traditional Chinese Medicine, China; Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, MA (I.S., G.-C.Y.); Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil (S.G.); Cardiovascular Medicine, Department of Internal Medicine, François M. Abboud Cardiovascular Research Center, University of Iowa Carver College of Medicine, Iowa City (B.C., A.G., L.-S.S.); Veterans Affairs Medical Center, Iowa City (L.-S.S.); and Harvard Stem Cell Institute, Cambridge, MA (W.T.P.)
| | - Blake D Jardin
- From the Cardiology, Boston Children's Hospital, MA (Y.G., N.J.V., Q.M., B.D.J., Y.A., D.Z., W.T.P.); Institute of Basic Medicine (L.Z.) and Pharmacology, School of Pharmacy (W.G.), Shanghai University of Traditional Chinese Medicine, China; Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, MA (I.S., G.-C.Y.); Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil (S.G.); Cardiovascular Medicine, Department of Internal Medicine, François M. Abboud Cardiovascular Research Center, University of Iowa Carver College of Medicine, Iowa City (B.C., A.G., L.-S.S.); Veterans Affairs Medical Center, Iowa City (L.-S.S.); and Harvard Stem Cell Institute, Cambridge, MA (W.T.P.)
| | - Yulan Ai
- From the Cardiology, Boston Children's Hospital, MA (Y.G., N.J.V., Q.M., B.D.J., Y.A., D.Z., W.T.P.); Institute of Basic Medicine (L.Z.) and Pharmacology, School of Pharmacy (W.G.), Shanghai University of Traditional Chinese Medicine, China; Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, MA (I.S., G.-C.Y.); Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil (S.G.); Cardiovascular Medicine, Department of Internal Medicine, François M. Abboud Cardiovascular Research Center, University of Iowa Carver College of Medicine, Iowa City (B.C., A.G., L.-S.S.); Veterans Affairs Medical Center, Iowa City (L.-S.S.); and Harvard Stem Cell Institute, Cambridge, MA (W.T.P.)
| | - Donghui Zhang
- From the Cardiology, Boston Children's Hospital, MA (Y.G., N.J.V., Q.M., B.D.J., Y.A., D.Z., W.T.P.); Institute of Basic Medicine (L.Z.) and Pharmacology, School of Pharmacy (W.G.), Shanghai University of Traditional Chinese Medicine, China; Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, MA (I.S., G.-C.Y.); Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil (S.G.); Cardiovascular Medicine, Department of Internal Medicine, François M. Abboud Cardiovascular Research Center, University of Iowa Carver College of Medicine, Iowa City (B.C., A.G., L.-S.S.); Veterans Affairs Medical Center, Iowa City (L.-S.S.); and Harvard Stem Cell Institute, Cambridge, MA (W.T.P.)
| | - Biyi Chen
- From the Cardiology, Boston Children's Hospital, MA (Y.G., N.J.V., Q.M., B.D.J., Y.A., D.Z., W.T.P.); Institute of Basic Medicine (L.Z.) and Pharmacology, School of Pharmacy (W.G.), Shanghai University of Traditional Chinese Medicine, China; Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, MA (I.S., G.-C.Y.); Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil (S.G.); Cardiovascular Medicine, Department of Internal Medicine, François M. Abboud Cardiovascular Research Center, University of Iowa Carver College of Medicine, Iowa City (B.C., A.G., L.-S.S.); Veterans Affairs Medical Center, Iowa City (L.-S.S.); and Harvard Stem Cell Institute, Cambridge, MA (W.T.P.)
| | - Ang Guo
- From the Cardiology, Boston Children's Hospital, MA (Y.G., N.J.V., Q.M., B.D.J., Y.A., D.Z., W.T.P.); Institute of Basic Medicine (L.Z.) and Pharmacology, School of Pharmacy (W.G.), Shanghai University of Traditional Chinese Medicine, China; Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, MA (I.S., G.-C.Y.); Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil (S.G.); Cardiovascular Medicine, Department of Internal Medicine, François M. Abboud Cardiovascular Research Center, University of Iowa Carver College of Medicine, Iowa City (B.C., A.G., L.-S.S.); Veterans Affairs Medical Center, Iowa City (L.-S.S.); and Harvard Stem Cell Institute, Cambridge, MA (W.T.P.)
| | - Guo-Cheng Yuan
- From the Cardiology, Boston Children's Hospital, MA (Y.G., N.J.V., Q.M., B.D.J., Y.A., D.Z., W.T.P.); Institute of Basic Medicine (L.Z.) and Pharmacology, School of Pharmacy (W.G.), Shanghai University of Traditional Chinese Medicine, China; Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, MA (I.S., G.-C.Y.); Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil (S.G.); Cardiovascular Medicine, Department of Internal Medicine, François M. Abboud Cardiovascular Research Center, University of Iowa Carver College of Medicine, Iowa City (B.C., A.G., L.-S.S.); Veterans Affairs Medical Center, Iowa City (L.-S.S.); and Harvard Stem Cell Institute, Cambridge, MA (W.T.P.)
| | - Long-Sheng Song
- From the Cardiology, Boston Children's Hospital, MA (Y.G., N.J.V., Q.M., B.D.J., Y.A., D.Z., W.T.P.); Institute of Basic Medicine (L.Z.) and Pharmacology, School of Pharmacy (W.G.), Shanghai University of Traditional Chinese Medicine, China; Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, MA (I.S., G.-C.Y.); Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil (S.G.); Cardiovascular Medicine, Department of Internal Medicine, François M. Abboud Cardiovascular Research Center, University of Iowa Carver College of Medicine, Iowa City (B.C., A.G., L.-S.S.); Veterans Affairs Medical Center, Iowa City (L.-S.S.); and Harvard Stem Cell Institute, Cambridge, MA (W.T.P.)
| | - William T Pu
- From the Cardiology, Boston Children's Hospital, MA (Y.G., N.J.V., Q.M., B.D.J., Y.A., D.Z., W.T.P.); Institute of Basic Medicine (L.Z.) and Pharmacology, School of Pharmacy (W.G.), Shanghai University of Traditional Chinese Medicine, China; Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, MA (I.S., G.-C.Y.); Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil (S.G.); Cardiovascular Medicine, Department of Internal Medicine, François M. Abboud Cardiovascular Research Center, University of Iowa Carver College of Medicine, Iowa City (B.C., A.G., L.-S.S.); Veterans Affairs Medical Center, Iowa City (L.-S.S.); and Harvard Stem Cell Institute, Cambridge, MA (W.T.P.).
| |
Collapse
|