1
|
Wang J, Guo W, Wang Q, Yang Y, Sun X. Recent advances of myotubularin-related (MTMR) protein family in cardiovascular diseases. Front Cardiovasc Med 2024; 11:1364604. [PMID: 38529329 PMCID: PMC10961392 DOI: 10.3389/fcvm.2024.1364604] [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: 01/04/2024] [Accepted: 02/27/2024] [Indexed: 03/27/2024] Open
Abstract
Belonging to a lipid phosphatase family containing 16 members, myotubularin-related proteins (MTMRs) are widely expressed in a variety of tissues and organs. MTMRs preferentially hydrolyzes phosphatidylinositol 3-monophosphate and phosphatidylinositol (3,5) bis-phosphate to generate phosphatidylinositol and phosphatidylinositol 5-monophosphate, respectively. These phosphoinositides (PIPs) promote membrane degradation during autophagosome-lysosomal fusion and are also involved in various regulatory signal transduction. Based on the ability of modulating the levels of these PIPs, MTMRs exert physiological functions such as vesicle trafficking, cell proliferation, differentiation, necrosis, cytoskeleton, and cell migration. It has recently been found that MTMRs are also involved in the occurrence and development of several cardiovascular diseases, including cardiomyocyte hypertrophy, proliferation of vascular smooth muscle cell, LQT1, aortic aneurysm, etc. This review summarizes the functions of MTMRs and highlights their pathophysiological roles in cardiovascular diseases.
Collapse
Affiliation(s)
- Jia Wang
- Department of Cardiology, The General Hospital of Western Theater Command, Chengdu, Sichuan, China
- College of Medicine, Southwest Jiaotong University, Chengdu, Sichuan, China
| | - Wei Guo
- Clinical Research Center, Stomatological Hospital of Chongqing Medical University, Chongqing, China
| | - Qiang Wang
- Department of Cardiology, The General Hospital of Western Theater Command, Chengdu, Sichuan, China
- College of Medicine, Southwest Jiaotong University, Chengdu, Sichuan, China
| | - Yongjian Yang
- Department of Cardiology, The General Hospital of Western Theater Command, Chengdu, Sichuan, China
| | - Xiongshan Sun
- Department of Cardiology, The General Hospital of Western Theater Command, Chengdu, Sichuan, China
| |
Collapse
|
2
|
Feng Q, Li X, Liu R, Liu G, He Y, Li T. Overexpression of MTMR14 induced learning and memory impairments in 2-month-old C57 mice. Neurosci Lett 2024; 825:137700. [PMID: 38401642 DOI: 10.1016/j.neulet.2024.137700] [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: 01/11/2024] [Revised: 02/15/2024] [Accepted: 02/17/2024] [Indexed: 02/26/2024]
Abstract
Multiple biological functions of MTMR14 including regulation of autophagy, inflammation and Ca2+ homeostasis have been reported. However, its functional contribution to learning and memory remains unclear. In this study, we investigated whether upregulation of MTMR14 induced cognitive impairment and the underlying mechanisms. MTMR14 level was significantly increased in cells or brain tissues that overexpressed P301S-tau. The fusion of autophagosome and lysosome was significantly inhibited by overexpression of MTMR14 or P301S-tau. Upregulation of MTMR14 led to cognitive impairments in 2-month-old mice by inhibiting synaptic protein expression. These findings suggest that MTMR14 may be a key risk factor for cognitive ability.
Collapse
Affiliation(s)
- Qiong Feng
- Department of Pathology, Wuhan Children's Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 43001, China
| | - Xiao Li
- Department of Pathology, Wuhan No. 1 Hospital, Wuhan 430022, China
| | - Ruijuan Liu
- Department of Pathophysiology, School of Basic Medicine and the Collaborative Innovation Center for Brain Science, Key Laboratory of Ministry of Education of China and Hubei Province for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Gongping Liu
- Department of Pathophysiology, School of Basic Medicine and the Collaborative Innovation Center for Brain Science, Key Laboratory of Ministry of Education of China and Hubei Province for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ye He
- Department of Pathophysiology, School of Basic Medicine and the Collaborative Innovation Center for Brain Science, Key Laboratory of Ministry of Education of China and Hubei Province for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Ting Li
- Department of Pathophysiology, School of Basic Medicine and the Collaborative Innovation Center for Brain Science, Key Laboratory of Ministry of Education of China and Hubei Province for Neurological Disorders, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| |
Collapse
|
3
|
Kong L, Liang C, Li P, Zhang Y, Feng S, Zhang D, Yao R, Yang L, Hao Z, Zhang H, Tian X, Guo C, Du B, Dong J, Zhang Y. Myotubularin‐Related Protein14 Prevents Neointima Formation and Vascular Smooth Muscle Cell Proliferation by Inhibiting Polo‐Like Kinase1. J Am Heart Assoc 2022; 11:e026174. [DOI: 10.1161/jaha.122.026174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Background
Restenosis is one of the main bottlenecks in restricting the further development of cardiovascular interventional therapy. New signaling molecules involved in the progress have continuously been discovered; however, the specific molecular mechanisms remain unclear. MTMR14 (myotubularin‐related protein 14) is a novel phosphoinositide phosphatase that has a variety of biological functions and is involved in diverse biological processes. However, the role of MTMR14 in vascular biology remains unclear. Herein, we addressed the role of MTMR14 in neointima formation and vascular smooth muscle cell (VSMC) proliferation after vessel injury.
Methods and Results
Vessel injury models were established using SMC‐specific conditional MTMR14‐knockout and ‐transgenic mice. Neointima formation was assessed by histopathological methods, and VSMC proliferation and migration were assessed using fluorescence ubiquitination‐based cell cycle indicator, transwell, and scratch wound assay. Neointima formation and the expression of MTMR14 was increased after injury. MTMR14 deficiency accelerated neointima formation and promoted VSMC proliferation after injury, whereas MTMR14 overexpression remarkably attenuated this process. Mechanistically, we demonstrated that MTMR14 suppressed the activation of PLK1 (polo‐like kinase 1) by interacting with it, which further leads to the inhibition of the activation of MEK/ERK/AKT (mitogen‐activated protein kinase kinase/extracellular‐signal‐regulated kinase/protein kinase B), thereby inhibiting the proliferation of VSMC from the medial to the intima and thus preventing neointima formation.
Conclusions
MTMR14 prevents neointima formation and VSMC proliferation by inhibiting PLK1. Our findings reveal that MTMR14 serves as an inhibitor of VSMC proliferation and establish a link between MTMR14 and PLK1 in regulating VSMC proliferation. MTMR14 may become a novel potential therapeutic target in the treatment of restenosis.
Collapse
Affiliation(s)
- Ling‐Yao Kong
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University Zhengzhou University Zhengzhou China
| | - Cui Liang
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University Zhengzhou University Zhengzhou China
| | - Peng‐Cheng Li
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University Zhengzhou University Zhengzhou China
| | - Yi‐Wei Zhang
- The Second School of Clinical Medicine Southern Medical University Guangzhou China
| | - Sheng‐Dong Feng
- Department of Cardiology The 7th People’s Hospital of Zhengzhou Zhengzhou China
| | - Dian‐Hong Zhang
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University Zhengzhou University Zhengzhou China
| | - Rui Yao
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University Zhengzhou University Zhengzhou China
| | - Lu‐Lu Yang
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University Zhengzhou University Zhengzhou China
| | - Zheng‐Yang Hao
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University Zhengzhou University Zhengzhou China
| | - Hao Zhang
- Department of Thoracic Surgery Union Hospital Wuhan China
- Department of Cardiovascular Surgery Union Hospital Wuhan China
| | - Xiao‐Xu Tian
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University Zhengzhou University Zhengzhou China
| | - Chen‐Ran Guo
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University Zhengzhou University Zhengzhou China
| | - Bin‐Bin Du
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University Zhengzhou University Zhengzhou China
| | - Jian‐Zeng Dong
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University Zhengzhou University Zhengzhou China
- Department of Cardiology Beijing Anzhen Hospital Capital Medical University National Clinical Research Centre for Cardiovascular Diseases Beijing China
| | - Yan‐Zhou Zhang
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University Zhengzhou University Zhengzhou China
| |
Collapse
|
4
|
Ceyhan Y, Zhang M, Sandoval CG, Agoulnik AI, Agoulnik IU. Expression pattern and the roles of phosphatidylinositol phosphatases in testis. Biol Reprod 2022; 107:902-915. [PMID: 35766372 DOI: 10.1093/biolre/ioac132] [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: 03/23/2022] [Revised: 06/02/2022] [Accepted: 06/20/2022] [Indexed: 11/13/2022] Open
Abstract
Phosphoinositides (PIs) are relatively rare lipid components of the cellular membranes. Their homeostasis is tightly controlled by specific PI kinases and phosphatases. PIs play essential roles in cellular signaling, cytoskeletal organization, and secretory processes in various diseases and normal physiology. Gene targeting experiments strongly suggest that in mice with deficiency of several PI phosphatases such as Pten, Mtmrs, Inpp4b, and Inpp5b, spermatogenesis is affected, resulting in partial or complete infertility. Similarly, in men, loss of several of the PIP phosphatases is observed in infertility characterized by the lack of mature sperm. Using available gene expression databases, we compare expression of known PI phosphatases in various testicular cell types, infertility patients, and mouse age-dependent testicular gene expression, and discuss their potential roles in testis physiology and spermatogenesis.
Collapse
Affiliation(s)
- Yasemin Ceyhan
- Department of Human and Molecular Genetics, Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA
| | - Manqi Zhang
- Department of Medicine, Duke University, Durham, NC, USA
| | - Carlos G Sandoval
- Department of Human and Molecular Genetics, Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA.,New York University Grossman School of Medicine, New York, NY, USA
| | - Alexander I Agoulnik
- Department of Human and Molecular Genetics, Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA.,Biomolecular Sciences Institute, Florida International University, Miami, FL, USA
| | - Irina U Agoulnik
- Department of Human and Molecular Genetics, Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA.,Biomolecular Sciences Institute, Florida International University, Miami, FL, USA.,Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, USA
| |
Collapse
|
5
|
MTMR14 Alleviates Chronic Obstructive Pulmonary Disease as a Regulator in Inflammation and Emphysema. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:9300269. [PMID: 35035670 PMCID: PMC8759842 DOI: 10.1155/2022/9300269] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 12/09/2021] [Indexed: 02/07/2023]
Abstract
Extensive inflammation and apoptosis in structural cells of the lung are responsible for the progression and pathogenesis of chronic obstructive pulmonary disease (COPD). Myotubularin-related protein 14 (MTMR14) has been shown to participate in various biological processes, including apoptosis, inflammation, and autophagy. Nonetheless, the role of MTMR14 in COPD remains elusive. In the present study, we explored the expression of MTMR14 in human lung tissues and investigated the effects of overexpressed MTMR14 on in vitro and in vivo COPD models. Moreover, one of the possible mechanisms of MTMR14 alleviating COPD was explored based on mitochondrial function and mitophagy homeostasis. The results showed that MTMR14 expression was reduced in COPD patients' lungs in comparison to control subjects. MTMR14 overexpression inhibited cigarette smoke extract-induced inflammation and apoptosis and improved mitochondrial function and mitophagy in vitro. Further verification was carried out in COPD model mice. MTMR14 overexpression inhibited lung inflammation and reduced levels of IL-6 and KC in bronchoalveolar lavage fluid, as well as prevented emphysema and a decline in lung function. Furthermore, MTMR14 overexpression improved mitochondrial function and mitophagy to a certain extent. Collectively, our data support the hypothesis that MTMR14 participates in the pathogenesis of COPD. Improving mitochondrial function and mitophagy homeostasis may be one of the mechanisms by which MTMR14 alleviates COPD and may potentially be a novel therapeutic target for COPD.
Collapse
|
6
|
Wasiak S, Dzobo KE, Rakai BD, Kaiser Y, Versloot M, Bahjat M, Stotz SC, Fu L, Sweeney M, Johansson JO, Wong NCW, Stroes ESG, Kroon J, Kulikowski E. BET protein inhibitor apabetalone (RVX-208) suppresses pro-inflammatory hyper-activation of monocytes from patients with cardiovascular disease and type 2 diabetes. Clin Epigenetics 2020; 12:166. [PMID: 33172487 PMCID: PMC7657365 DOI: 10.1186/s13148-020-00943-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 10/07/2020] [Indexed: 12/14/2022] Open
Abstract
Background Patients with cardiovascular disease (CVD) and type 2 diabetes (DM2) have a high residual risk for experiencing a major adverse cardiac event. Dysregulation of epigenetic mechanisms of gene transcription in innate immune cells contributes to CVD development but is currently not targeted by therapies. Apabetalone (RVX-208) is a small molecule inhibitor of bromodomain and extra-terminal (BET) proteins—histone acetylation readers that drive pro-inflammatory and pro-atherosclerotic gene transcription. Here, we assess the impact of apabetalone on ex vivo inflammatory responses of monocytes from DM2 + CVD patients. Results Monocytes isolated from DM2 + CVD patients and matched controls were treated ex vivo with apabetalone, interferon γ (IFNγ), IFNγ + apabetalone or vehicle and phenotyped for gene expression and protein secretion. Unstimulated DM2 + CVD monocytes had higher baseline IL-1α, IL-1β and IL-8 cytokine gene expression and Toll-like receptor (TLR) 2 surface abundance than control monocytes, indicating pro-inflammatory activation. Further, DM2 + CVD monocytes were hyper-responsive to stimulation with IFNγ, upregulating genes within cytokine and NF-κB pathways > 30% more than control monocytes (p < 0.05). Ex vivo apabetalone treatment countered cytokine secretion by DM2 + CVD monocytes at baseline (GROα and IL-8) and during IFNγ stimulation (IL-1β and TNFα). Apabetalone abolished pro-inflammatory hyper-activation by reducing TLR and cytokine gene signatures more robustly in DM2 + CVD versus control monocytes. Conclusions Monocytes isolated from DM2 + CVD patients receiving standard of care therapies are in a hyper-inflammatory state and hyperactive upon IFNγ stimulation. Apabetalone treatment diminishes this pro-inflammatory phenotype, providing mechanistic insight into how BET protein inhibition may reduce CVD risk in DM2 patients.
Collapse
Affiliation(s)
- Sylwia Wasiak
- Resverlogix Corp, 300-4820 Richard Road SW, Calgary, AB, T3E 6L1, Canada
| | - Kim E Dzobo
- Department of Experimental Vascular Medicine, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
| | - Brooke D Rakai
- Resverlogix Corp, 300-4820 Richard Road SW, Calgary, AB, T3E 6L1, Canada
| | - Yannick Kaiser
- Department of Vascular Medicine, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
| | - Miranda Versloot
- Department of Experimental Vascular Medicine, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
| | - Mahnoush Bahjat
- Department of Experimental Vascular Medicine, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
| | - Stephanie C Stotz
- Resverlogix Corp, 300-4820 Richard Road SW, Calgary, AB, T3E 6L1, Canada
| | - Li Fu
- Resverlogix Corp, 300-4820 Richard Road SW, Calgary, AB, T3E 6L1, Canada
| | - Michael Sweeney
- Resverlogix Corp, 300-4820 Richard Road SW, Calgary, AB, T3E 6L1, Canada
| | - Jan O Johansson
- Resverlogix Corp, 300-4820 Richard Road SW, Calgary, AB, T3E 6L1, Canada
| | - Norman C W Wong
- Resverlogix Corp, 300-4820 Richard Road SW, Calgary, AB, T3E 6L1, Canada
| | - Erik S G Stroes
- Department of Vascular Medicine, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
| | - Jeffrey Kroon
- Department of Experimental Vascular Medicine, Amsterdam Cardiovascular Sciences, Amsterdam UMC, University of Amsterdam, Meibergdreef 9, Amsterdam, The Netherlands
| | - Ewelina Kulikowski
- Resverlogix Corp, 300-4820 Richard Road SW, Calgary, AB, T3E 6L1, Canada.
| |
Collapse
|
7
|
Li S, Zhang M, Zhang B. MTMR14 protects against hepatic ischemia-reperfusion injury through interacting with AKT signaling in vivo and in vitro. Biomed Pharmacother 2020; 129:110455. [PMID: 32768948 DOI: 10.1016/j.biopha.2020.110455] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 06/07/2020] [Accepted: 06/23/2020] [Indexed: 02/07/2023] Open
Abstract
Hepatic ischemia-reperfusion (IR) injury is characterized by severe inflammation and cell death. However, very few effective therapies are presently available for hepatic IR injury treatment. Here, we reported a protective function and the underlying mechanism of myotubularin-related protein 14 (MTMR14) during hepatic IR injury. Hepatocyte-specific MTMR14 knockout (HKO) and transgenic (TG) mice were subjected to hepatic IR operation to explore MTMR14 function in vivo. Primary hepatocytes isolated from MTMR14-HKO and MTMR14-TG mice were subjected to hypoxia/reoxygenation (HR) insult in vitro. We found that MTMR14 expression in liver tissues from individuals with hepatic IR was markedly decreased, and similar results were detected in mice with hepatic IR surgery. MTMR14-TG mice following hepatic IR operation had obviously ameliorated liver pathological changes, along with improved hepatic dysfunction, which was proved by the decreased serum alanine amino transferase (ALT) and aspartate amino transferase (AST) levels. MTMR14-HKO and MTMR14-TG animal models indicated that MTMR14 alleviated cell death and inflammatory response. In addition, MTMR14 inhibited nuclear transcription factor κB (NF-κB) signaling. Of note, promoting MTMR14 expression improved phosphatidylinositol 3-kinase/protein kinase-B (PI3K/AKT) pathway through a physical interaction with AKT, subsequently reducing cell death and inflammation. Therefore, MTMR14 is a protective factor during hepatic IR injury, and the MTMR14/AKT signaling is involved the pathogenesis hepatic IR injury. Improvement of this axis might be a novel therapeutic strategy for the prevention of this pathological process.
Collapse
Affiliation(s)
- Shufang Li
- Liver Department, Xi'an Hospital of Traditional Chinese Medicine, Xi'an 710021, China
| | - Meng Zhang
- Department of Vascular Surgery, Yidu Central Hospital of Weifang, Weifang 262500, China
| | - Bei Zhang
- Department of Intervention Radiology (Department of Pain), Tangdu Hospital, the Forth Military Medical University, Xi'an 710038, China.
| |
Collapse
|
8
|
Myotubularin-related protein 14 suppresses cardiac hypertrophy by inhibiting Akt. Cell Death Dis 2020; 11:140. [PMID: 32080168 PMCID: PMC7033093 DOI: 10.1038/s41419-020-2330-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 02/01/2020] [Accepted: 02/03/2020] [Indexed: 11/12/2022]
Abstract
Cardiac hypertrophy (CH) is an independent risk factor for many cardiovascular diseases, and is one of the primary causes of morbidity and mortality in elderly people. Pathological CH involves excessive protein synthesis, increased cardiomyocyte size, and ultimately the development of heart failure. Myotubularin-related protein 14 (MTMR14) is a member of the myotubularin (MTM)-related protein family, which is involved in apoptosis, aging, inflammation, and autophagy. However, its exact function in CH is still unclear. Herein, we investigated the roles of MTMR14 in CH. We show that MTMR14 expression was increased in hypertrophic mouse hearts. Mice deficient in heart MTMR14 exhibited an aggravated aortic-banding (AB)-induced CH phenotype. In contrast, MTMR14 overexpression prevented pressure overload-induced hypertrophy. At the molecular level, prevention of CH in the absence of MTMR14 involved elevations in Akt pathway components, which are key elements that regulate apoptosis and cell proliferation. These results demonstrate that MTMR14 is a new molecular target for the treatment of CH.
Collapse
|