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Jolfayi AG, Kohansal E, Ghasemi S, Naderi N, Hesami M, MozafaryBazargany M, Moghadam MH, Fazelifar AF, Maleki M, Kalayinia S. Exploring TTN variants as genetic insights into cardiomyopathy pathogenesis and potential emerging clues to molecular mechanisms in cardiomyopathies. Sci Rep 2024; 14:5313. [PMID: 38438525 PMCID: PMC10912352 DOI: 10.1038/s41598-024-56154-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 03/01/2024] [Indexed: 03/06/2024] Open
Abstract
The giant protein titin (TTN) is a sarcomeric protein that forms the myofibrillar backbone for the components of the contractile machinery which plays a crucial role in muscle disorders and cardiomyopathies. Diagnosing TTN pathogenic variants has important implications for patient management and genetic counseling. Genetic testing for TTN variants can help identify individuals at risk for developing cardiomyopathies, allowing for early intervention and personalized treatment strategies. Furthermore, identifying TTN variants can inform prognosis and guide therapeutic decisions. Deciphering the intricate genotype-phenotype correlations between TTN variants and their pathologic traits in cardiomyopathies is imperative for gene-based diagnosis, risk assessment, and personalized clinical management. With the increasing use of next-generation sequencing (NGS), a high number of variants in the TTN gene have been detected in patients with cardiomyopathies. However, not all TTN variants detected in cardiomyopathy cohorts can be assumed to be disease-causing. The interpretation of TTN variants remains challenging due to high background population variation. This narrative review aimed to comprehensively summarize current evidence on TTN variants identified in published cardiomyopathy studies and determine which specific variants are likely pathogenic contributors to cardiomyopathy development.
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Affiliation(s)
- Amir Ghaffari Jolfayi
- Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Erfan Kohansal
- Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Serwa Ghasemi
- Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Niloofar Naderi
- Cardiogenetic Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Mahshid Hesami
- Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | | | - Maryam Hosseini Moghadam
- Cardiogenetic Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Amir Farjam Fazelifar
- Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Majid Maleki
- Cardiogenetic Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Samira Kalayinia
- Cardiogenetic Research Center, Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran.
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Zhang P, Huang C, Liu H, Zhang M, Liu L, Zhai Y, Zhang J, Yang J, Yang J. The mechanism of the NFAT transcription factor family involved in oxidative stress response. J Cardiol 2024; 83:30-36. [PMID: 37149283 DOI: 10.1016/j.jjcc.2023.04.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 04/20/2023] [Accepted: 04/28/2023] [Indexed: 05/08/2023]
Abstract
As a transcriptional activator widely expressed in various tissues, nuclear factor of activated T cells (NFAT) is involved in the regulation of the immune system, the development of the heart and brain systems, and classically mediating pathological processes such as cardiac hypertrophy. Oxidative stress is an imbalance of intracellular redox status, characterized by excessive generation of reactive oxygen species, accompanied by mitochondrial dysfunction, calcium overload, and subsequent lipid peroxidation, inflammation, and apoptosis. Oxidative stress occurs during various pathological processes, such as chronic hypoxia, vascular smooth muscle cell phenotype switching, ischemia-reperfusion, and cardiac remodeling. Calcium overload leads to an increase in intracellular calcium concentration, while NFAT can be activated through calcium-calcineurin, which is also the main regulatory mode of NFAT factors. This review focuses on the effects of NFAT transcription factors on reactive oxygen species production, calcium overload, mitochondrial dysfunction, redox reactions, lipid peroxidation, inflammation, and apoptosis in response to oxidative stress. We hope to provide a reference for the functions and characteristics of NFAT involved in various stages of oxidative stress as well as related potential targets.
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Affiliation(s)
- Peiyue Zhang
- Department of Cardiology, The First College of Clinical Medical Science, China Three Gorges University, Yichang, China; Institute of Cardiovascular Diseases, China Three Gorges University, Yichang, China; HuBei Clinical Research Center for Ischemic Cardiovascular Disease, Yichang, China
| | - Cuiyuan Huang
- HuBei Clinical Research Center for Ischemic Cardiovascular Disease, Yichang, China
| | - Haiyin Liu
- Department of Cardiology, The First College of Clinical Medical Science, China Three Gorges University, Yichang, China; Institute of Cardiovascular Diseases, China Three Gorges University, Yichang, China; HuBei Clinical Research Center for Ischemic Cardiovascular Disease, Yichang, China
| | - Mengting Zhang
- Department of Cardiology, The First College of Clinical Medical Science, China Three Gorges University, Yichang, China; Institute of Cardiovascular Diseases, China Three Gorges University, Yichang, China; HuBei Clinical Research Center for Ischemic Cardiovascular Disease, Yichang, China
| | - Li Liu
- Institute of Cardiovascular Diseases, China Three Gorges University, Yichang, China; HuBei Clinical Research Center for Ischemic Cardiovascular Disease, Yichang, China
| | - Yuhong Zhai
- Department of Cardiology, The First College of Clinical Medical Science, China Three Gorges University, Yichang, China; Institute of Cardiovascular Diseases, China Three Gorges University, Yichang, China; HuBei Clinical Research Center for Ischemic Cardiovascular Disease, Yichang, China
| | - Jing Zhang
- Institute of Cardiovascular Diseases, China Three Gorges University, Yichang, China; HuBei Clinical Research Center for Ischemic Cardiovascular Disease, Yichang, China
| | - Jian Yang
- Department of Cardiology, The First College of Clinical Medical Science, China Three Gorges University, Yichang, China; Institute of Cardiovascular Diseases, China Three Gorges University, Yichang, China.
| | - Jun Yang
- Department of Cardiology, The First College of Clinical Medical Science, China Three Gorges University, Yichang, China; Institute of Cardiovascular Diseases, China Three Gorges University, Yichang, China.
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Sun ZH, Liu F, Kong LL, Ji PM, Huang L, Zhou HM, Sun R, Luo J, Li WZ. Interruption of TRPC6-NFATC1 signaling inhibits NADPH oxidase 4 and VSMCs phenotypic switch in intracranial aneurysm. Biomed Pharmacother 2023; 161:114480. [PMID: 37002575 DOI: 10.1016/j.biopha.2023.114480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 02/23/2023] [Accepted: 03/07/2023] [Indexed: 03/12/2023] Open
Abstract
Intracranial aneurysm (IA) is a frequent cerebrovascular disorder with unclear pathogenesis. The vascular smooth muscle cells (VSMCs) phenotypic switch is essential for IA formation. It has been reported that Ca2+ overload and excessive reactive oxygen species (ROS) are involved in VSMCs phenotypic switch. The transient receptor potential canonical 6 (TRPC6) and NADPH oxidase 4 (NOX4) are the main pathway to participate in Ca2+ overload and ROS production in VSMCs. Ca2+ overload can activate calcineurin (CN), leading to nuclear factor of activated T cell (NFAT) dephosphorylation to regulate the target gene's transcription. We hypothesized that activation of TRPC6-NFATC1 signaling may upregulate NOX4 and involve in VSMCs phenotypic switch contributing to the progression of IA. Our results showed that the expressions of NOX4, p22phox, p47phox, TRPC6, CN and NFATC1 were significantly increased, and VSMCs underwent a significant phenotypic switch in IA tissue and cellular specimens. The VIVIT (NFATC1 inhibitor) and BI-749327 (TRPC6 inhibitor) treatment reduced the expressions of NOX4, p22phox and p47phox and the production of ROS, and significantly improved VSMCs phenotypic switch in IA rats and cells. Consistent results were obtained from IA Trpc6 knockout (Trpc6-/-) mice. Furthermore, the results also revealed that NFATC1 could regulate NOX4 transcription by binding to its promoter. Our findings reveal that interrupting the TRPC6-NFATC1 signaling inhibits NOX4 and improves VSMCs phenotypic switch in IA, and regulating Ca2+ homeostasis may be an important therapeutic strategy for IA.
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Affiliation(s)
- Zheng-Hao Sun
- Department of Pharmacology, Basic Medicine College; Key Laboratory of Anti-inflammatory and Immunopharmacology, Ministry of Education; Anhui Medical University, Hefei 230032, Anhui, China
| | - Fei Liu
- Department of neurosurgery, The First Affiliated Hospital of Anhui Medical University, Hefei 230032, Anhui, China
| | - Liang-Liang Kong
- Department of Pharmacology, Basic Medicine College; Key Laboratory of Anti-inflammatory and Immunopharmacology, Ministry of Education; Anhui Medical University, Hefei 230032, Anhui, China
| | - Peng-Min Ji
- Department of Pharmacology, Basic Medicine College; Key Laboratory of Anti-inflammatory and Immunopharmacology, Ministry of Education; Anhui Medical University, Hefei 230032, Anhui, China
| | - Lei Huang
- Department of Pharmacology, Basic Medicine College; Key Laboratory of Anti-inflammatory and Immunopharmacology, Ministry of Education; Anhui Medical University, Hefei 230032, Anhui, China
| | - Hui-Min Zhou
- Department of Pharmacology, Basic Medicine College; Key Laboratory of Anti-inflammatory and Immunopharmacology, Ministry of Education; Anhui Medical University, Hefei 230032, Anhui, China
| | - Ran Sun
- Department of Pharmacology, Basic Medicine College; Key Laboratory of Anti-inflammatory and Immunopharmacology, Ministry of Education; Anhui Medical University, Hefei 230032, Anhui, China
| | - Jing Luo
- Department of neurosurgery, The First Affiliated Hospital of Anhui Medical University, Hefei 230032, Anhui, China.
| | - Wei-Zu Li
- Department of Pharmacology, Basic Medicine College; Key Laboratory of Anti-inflammatory and Immunopharmacology, Ministry of Education; Anhui Medical University, Hefei 230032, Anhui, China.
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Yan Y, Long T, Su Q, Wang Y, Chen K, Yang T, Zhao G, Ma Q, Hu X, Liu C, Liao X, Min W, Li S, Zhang D, Yang Y, Pu WT, Dong Y, Wang DZ, Chen Y, Huang ZP. Cardiac ISL1-Interacting Protein, a Cardioprotective Factor, Inhibits the Transition From Cardiac Hypertrophy to Heart Failure. Front Cardiovasc Med 2022; 9:857049. [PMID: 35369338 PMCID: PMC8970336 DOI: 10.3389/fcvm.2022.857049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 02/17/2022] [Indexed: 11/13/2022] Open
Abstract
Heart failure is characterized by the inability of the heart to pump effectively and generate proper blood circulation to meet the body’s needs; it is a devastating condition that affects more than 100 million people globally. In spite of this, little is known about the mechanisms regulating the transition from cardiac hypertrophy to heart failure. Previously, we identified a cardiomyocyte-enriched gene, CIP, which regulates cardiac homeostasis under pathological stimulation. Here, we show that the cardiac transcriptional factor GATA4 binds the promotor of CIP gene and regulates its expression. We further determined that both CIP mRNA and protein decrease in diseased human hearts. In a mouse model, induced cardiac-specific overexpression of CIP after the establishment of cardiac hypertrophy protects the heart by inhibiting disease progression toward heart failure. Transcriptome analyses revealed that the IGF, mTORC2 and TGFβ signaling pathways mediate the inhibitory function of CIP on pathologic cardiac remodeling. Our study demonstrates GATA4 as an upstream regulator of CIP gene expression in cardiomyocytes, as well as the clinical significance of CIP expression in human heart disease. More importantly, our investigation suggests CIP is a key regulator of the transition from cardiac hypertrophy to heart failure. The ability of CIP to intervene in the onset of heart failure suggests a novel therapeutic avenue of investigation for the prevention of heart disease progression.
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Affiliation(s)
- Youchen Yan
- Department of Cardiology, Center for Translational Medicine, Institute of Precision Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- NHC Key Laboratory of Assisted Circulation, Sun Yat-sen University, Guangzhou, China
| | - Tianxin Long
- Department of Cardiology, Center for Translational Medicine, Institute of Precision Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- NHC Key Laboratory of Assisted Circulation, Sun Yat-sen University, Guangzhou, China
| | - Qiao Su
- Laboratory Animal Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yi Wang
- Department of Cardiology, Boston Children’s Hospital, Harvard Medical School, Boston, MA, United States
| | - Ken Chen
- School of Data and Computer Science, Sun Yat-sen University, Guangzhou, China
- Key Laboratory of Machine Intelligence and Advanced Computing, Ministry of Education, Sun Yat-sen University, Guangzhou, China
| | - Tiqun Yang
- Department of Cardiology, Center for Translational Medicine, Institute of Precision Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- NHC Key Laboratory of Assisted Circulation, Sun Yat-sen University, Guangzhou, China
| | - Guangyin Zhao
- Laboratory Animal Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Qing Ma
- Department of Cardiology, Boston Children’s Hospital, Harvard Medical School, Boston, MA, United States
| | - Xiaoyun Hu
- Department of Cardiology, Boston Children’s Hospital, Harvard Medical School, Boston, MA, United States
| | - Chen Liu
- Department of Cardiology, Center for Translational Medicine, Institute of Precision Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- NHC Key Laboratory of Assisted Circulation, Sun Yat-sen University, Guangzhou, China
| | - Xinxue Liao
- Department of Cardiology, Center for Translational Medicine, Institute of Precision Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- NHC Key Laboratory of Assisted Circulation, Sun Yat-sen University, Guangzhou, China
| | - Wang Min
- Department of Cardiology, Center for Translational Medicine, Institute of Precision Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Shujuan Li
- Department of Cardiology, Center for Translational Medicine, Institute of Precision Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- NHC Key Laboratory of Assisted Circulation, Sun Yat-sen University, Guangzhou, China
| | - Dihua Zhang
- Department of Nephrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yuedong Yang
- School of Data and Computer Science, Sun Yat-sen University, Guangzhou, China
- Key Laboratory of Machine Intelligence and Advanced Computing, Ministry of Education, Sun Yat-sen University, Guangzhou, China
| | - William T. Pu
- Department of Cardiology, Boston Children’s Hospital, Harvard Medical School, Boston, MA, United States
| | - Yugang Dong
- Department of Cardiology, Center for Translational Medicine, Institute of Precision Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- NHC Key Laboratory of Assisted Circulation, Sun Yat-sen University, Guangzhou, China
| | - Da-Zhi Wang
- Department of Cardiology, Boston Children’s Hospital, Harvard Medical School, Boston, MA, United States
- *Correspondence: Da-Zhi Wang,
| | - Yili Chen
- Department of Cardiology, Center for Translational Medicine, Institute of Precision Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- NHC Key Laboratory of Assisted Circulation, Sun Yat-sen University, Guangzhou, China
- Yili Chen,
| | - Zhan-Peng Huang
- Department of Cardiology, Center for Translational Medicine, Institute of Precision Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- NHC Key Laboratory of Assisted Circulation, Sun Yat-sen University, Guangzhou, China
- National-Guangdong Joint Engineering Laboratory for Diagnosis and Treatment of Vascular Diseases, Guangzhou, China
- Zhan-Peng Huang,
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