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Liu A, Tian F, Zhou Y, Pu Z. Effect of caspase inhibitors on hemodynamics and inflammatory factors in ARDS model rats. Sci Rep 2024; 14:16317. [PMID: 39009819 PMCID: PMC11250789 DOI: 10.1038/s41598-024-67444-5] [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: 10/27/2023] [Accepted: 07/11/2024] [Indexed: 07/17/2024] Open
Abstract
To study the effects of caspase inhibitors on hemodynamics and inflammatory factors in acute respiratory distress syndrome (ARDS) model rats. Sixty healthy male Wistar rats were randomly divided into three groups, namely, the control group, ARDS group and ARDS + Caspase inhibitor group, with 20 rats in each group. The control group was intraperitoneally injected with 2 mL/kg saline, and the ARDS model group was established by intraperitoneally injecting 4 mg/kg Lipopolysaccharide (LPS), ARDS + Caspase inhibitor group was adminstered 20 mg/kg caspase inhibitor after intraperitoneal LPS injection. Changes in pulmonary arterial pressure (PAP) and mean arterial pressure (MAP) at 6 and 12 h before and after administration were recorded. Moreover, arterial blood gas was evaluated with a blood gas analyzer and changes in the partial pressure of O2 (PaO2), partial pressure of CO2 (PaCO2), partial pressure of O2/fraction of inspired O2 (PaO2/FiO2) were evaluated. In addition, the lung wet/dry weight (W/D) ratio and inflammatory factor levels in lung tissue were determined. Finally, pathological sections were used to determine the pulmonary artery media thickness (MT), MT percentage (MT%), and the degree of muscle vascularization. The pulmonary arterial pressure of rats was determined at several time points. Compared with the control group, the model group had a significantly increased pulmonary arterial pressure at each time point (P < 0.01), and the mean arterial pressure significantly increased at 6 h (P < 0.05). Compared with that of rats in the model group, the pulmonary arterial pressure of rats in drug administration group was significantly reduced at each time point after administration (P < 0.01), and the mean arterial pressure was significantly reduced at 6 h (P < 0.05). The arterial blood gas analysis showed that compared with those in the control group, PaO2, PaCO2 and PaO2/FiO2 in the model group were significantly reduced (P < 0.01), and PaO2, PaCO2 and PaO2/FiO2 were significantly increased after caspase inhibitor treatment (P < 0.05 or 0.01). The levels of the inflammatory mediators tumor necrosis factor-alpha (TNF-α), interleukin-1β (IL-1β) and interleukin-6 (IL-6) in the model group were significantly higher than those in the control group (P < 0.01), and they were significantly decreased after caspase inhibitor treatment (P < 0.01). In the model group, pulmonary artery MT, MT% and the degree of muscle vascularization were significantly increased (P < 0.05 or 0.01), and pulmonary artery MT and the degree of muscle vascularization were significantly reduced after caspase inhibitor treatment (P < 0.05 or 0.01). Apoptosis Repressor with a Caspase Recuitment Domain (ARC) can alleviate the occurrence and development of pulmonary hypertension (PH) by affecting hemodynamics and reducing inflammation.
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Affiliation(s)
- Aiming Liu
- Department of Critical Care Medicine, Affiliated Haian Hospital of Nantong University, No. 17 Zhongba Middle Road, Haian, Nantong, 226600, Jiangsu, China
| | - Fei Tian
- Department of Medical Imaging, Haian Hospital of Traditional Chinese Medicine Affiliated to Nanjing University of Chinese Medicine, Nantong, Jiangsu, China
| | - Yaqing Zhou
- Department of Critical Care Medicine, Affiliated Haian Hospital of Nantong University, No. 17 Zhongba Middle Road, Haian, Nantong, 226600, Jiangsu, China.
| | - Zunguo Pu
- Department of Critical Care Medicine, Affiliated Haian Hospital of Nantong University, No. 17 Zhongba Middle Road, Haian, Nantong, 226600, Jiangsu, China
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Kuhnen G, Guedes Russomanno T, Murgia M, Pillon NJ, Schönfelder M, Wackerhage H. Genes Whose Gain or Loss of Function Changes Type 1, 2A, 2X, or 2B Muscle Fibre Proportions in Mice—A Systematic Review. Int J Mol Sci 2022; 23:ijms232112933. [PMID: 36361732 PMCID: PMC9658117 DOI: 10.3390/ijms232112933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/16/2022] [Accepted: 10/18/2022] [Indexed: 11/25/2022] Open
Abstract
Adult skeletal muscle fibres are classified as type 1, 2A, 2X, and 2B. These classifications are based on the expression of the dominant myosin heavy chain isoform. Muscle fibre-specific gene expression and proportions of muscle fibre types change during development and in response to exercise, chronic electrical stimulation, or inactivity. To identify genes whose gain or loss-of-function alters type 1, 2A, 2X, or 2B muscle fibre proportions in mice, we conducted a systematic review of transgenic mouse studies. The systematic review was conducted in accordance with the 2009 PRISMA guidelines and the PICO framework. We identified 25 “muscle fibre genes” (Akirin1, Bdkrb2, Bdnf, Camk4, Ccnd3, Cpt1a, Epas1, Esrrg, Foxj3, Foxo1, Il15, Mapk12, Mstn, Myod1, Ncor1, Nfatc1, Nol3, Ppargc1a, Ppargc1b, Sirt1, Sirt3, Thra, Thrb, Trib3, and Vgll2) whose gain or loss-of-function significantly changes type 1, 2A, 2X or 2B muscle fibre proportions in mice. The fact that 15 of the 25 muscle fibre genes are transcriptional regulators suggests that muscle fibre-specific gene expression is primarily regulated transcriptionally. A reanalysis of existing datasets revealed that the expression of Ppargc1a and Vgll2 increases and Mstn decreases after exercise, respectively. This suggests that these genes help to regulate the muscle fibre adaptation to exercise. Finally, there are many known DNA sequence variants of muscle fibre genes. It seems likely that such DNA sequence variants contribute to the large variation of muscle fibre type proportions in the human population.
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Affiliation(s)
- Gabryela Kuhnen
- Department of Sports and Health Sciences, Technical University of Munich, 80809 Munich, Germany
| | - Tiago Guedes Russomanno
- Department of Sports and Health Sciences, Technical University of Munich, 80809 Munich, Germany
| | - Marta Murgia
- Max Planck Institute, Martinsried, 82152 Munich, Germany
- Department of Biomedical Sciences, University of Padova, Via Ugo Bassi, 58/B, 35131 Padua, Italy
| | - Nicolas J Pillon
- Department of Physiology and Pharmacology, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Martin Schönfelder
- Department of Sports and Health Sciences, Technical University of Munich, 80809 Munich, Germany
| | - Henning Wackerhage
- Department of Sports and Health Sciences, Technical University of Munich, 80809 Munich, Germany
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Biomechanical Process of Skeletal Muscle under Training Condition Based on 3D Visualization Technology. JOURNAL OF HEALTHCARE ENGINEERING 2022; 2022:2656405. [PMID: 35178224 PMCID: PMC8846985 DOI: 10.1155/2022/2656405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 12/30/2021] [Indexed: 11/23/2022]
Abstract
With the development and popularization of 3D technology, human behavior recognition has gradually developed from plane feature recognition to elevation feature recognition. In the process of collecting motion characteristics, the research on skeletal muscle will lead to a series of data in time series, which is the basis of sports biomechanics research and sports training. Some important semantic information such as centerline and joint center can be obtained by further data processing. The results of the study showed that the three-dimensional coordinate positions of the femur and pelvic attachment points of the muscles surrounding the hip joint from the pelvis were measured and positioned. A 3D model is built to simulate the human skeletal model subjected to speeds of 3 and 7 m/s, and different motion velocities can exhibit different motions. The research in this study shows that using 3D technology and comprehensively utilizing the expertise of biomechanical analysis and graphical modeling to study the mechanical properties of bone joints and soft tissues provide new ways and methods.
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Takeda S, Kaji K, Nishimura N, Enomoto M, Fujimoto Y, Murata K, Takaya H, Kawaratani H, Moriya K, Namisaki T, Akahane T, Yoshiji H. Angiotensin Receptor Blockers Potentiate the Protective Effect of Branched-Chain Amino Acids on Skeletal Muscle Atrophy in Cirrhotic Rats. Mol Nutr Food Res 2021; 65:e2100526. [PMID: 34687151 DOI: 10.1002/mnfr.202100526] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 10/11/2021] [Indexed: 12/11/2022]
Abstract
SCOPE This study investigated the combined effect of the angiotensin II (AT-II) receptor blocker losartan and branched-chain amino acids (BCAAs) on skeletal muscle atrophy in rats with cirrhosis and steatohepatitis. METHOD AND RESULTS Fischer 344 rats are fed a choline-deficient l-amino acid-defined (CDAA) diet for 12 weeks and treated with oral losartan (30 mg kg-1 day-1 ) and/or BCAAs (Aminoleban EN, 2500 mg kg-1 day-1 ). Treatment with losartan and BCAAs attenuated hepatic inflammation and fibrosis and improved skeletal muscle atrophy and strength in CDAA-fed rats. Both agents reduced intramuscular myostatin and pro-inflammatory cytokine levels, resulting in inhibition of the ubiquitin-proteasome system (UPS) through interference with the SMAD and nuclear factor-kappa B pathways, respectively. Losartan also augmented the BCAA-mediated increase of skeletal muscle mass by promoting insulin growth factor-I production and mitochondrial biogenesis. Moreover, losartan decreased the intramuscular expression of transcription factor EB (TFEB), a transcriptional inducer of E3 ubiquitin ligase regulated by AT-II. In vitro assays illustrated that losartan promoted mitochondrial biogenesis and reduced TFEB expression in AT-II-stimulated rat myocytes, thereby potentiating the inhibitory effects of BCAAs on the UPS and caspase-3 cleavage. CONCLUSION These results indicate that this regimen could serve as a novel treatment for patients with sarcopenia and liver cirrhosis.
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Affiliation(s)
- Soichi Takeda
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara, 634-8521, Japan
| | - Kosuke Kaji
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara, 634-8521, Japan
| | - Norihisa Nishimura
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara, 634-8521, Japan
| | - Masahide Enomoto
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara, 634-8521, Japan
| | - Yuki Fujimoto
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara, 634-8521, Japan
| | - Koji Murata
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara, 634-8521, Japan
| | - Hiroaki Takaya
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara, 634-8521, Japan
| | - Hideto Kawaratani
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara, 634-8521, Japan
| | - Kei Moriya
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara, 634-8521, Japan
| | - Tadashi Namisaki
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara, 634-8521, Japan
| | - Takemi Akahane
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara, 634-8521, Japan
| | - Hitoshi Yoshiji
- Department of Gastroenterology, Nara Medical University, Kashihara, Nara, 634-8521, Japan
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Wang Q, Zhang T, Chang X, Lim DY, Wang K, Bai R, Wang T, Ryu J, Chen H, Yao K, Ma WY, Boardman LA, Bode AM, Dong Z. ARC Is a Critical Protector against Inflammatory Bowel Disease (IBD) and IBD-Associated Colorectal Tumorigenesis. Cancer Res 2020; 80:4158-4171. [PMID: 32816906 DOI: 10.1158/0008-5472.can-20-0469] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Revised: 06/25/2020] [Accepted: 08/06/2020] [Indexed: 11/16/2022]
Abstract
The key functional molecules involved in inflammatory bowel disease (IBD) and IBD-induced colorectal tumorigenesis remain unclear. In this study, we found that the apoptosis repressor with caspase recruitment domain (ARC) protein plays critical roles in IBD. ARC-deficient mice exhibited substantially higher susceptibility to dextran sulfate sodium (DSS)-induced IBD compared with wild-type mice. The inflammatory burden induced in ARC-deficient conditions was inversely correlated with CCL5 and CXCL5 levels in immune cells, especially CD4-positive T cells. Pathologically, ARC expression in immune cells was significantly decreased in clinical biopsy specimens from patients with IBD compared with normal subjects. In addition, ARC levels inversely correlated with CCL5 and CXCL5 levels in human biopsy specimens. ARC interacted with TNF receptor associated factor (TRAF) 6, regulating ubiquitination of TRAF6, which was associated with NF-κB signaling. Importantly, we identified a novel ubiquitination site at lysine 461, which was critical in the function of ARC in IBD. ARC played a critical role in IBD and IBD-associated colon cancer in a bone marrow transplantation model and azoxymethane/DSS-induced colitis cancer mouse models. Overall, these findings reveal that ARC is critically involved in the maintenance of intestinal homeostasis and protection against IBD through its ubiquitination of TRAF6 and subsequent modulation of NF-κB activation in T cells. SIGNIFICANCE: This study uncovers a crucial role of ARC in the immune system and IBD, giving rise to a novel strategy for IBD and IBD-associated colon cancer therapy.
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Affiliation(s)
- Qiushi Wang
- The Hormel Institute, University of Minnesota, Austin, Minnesota
| | - Tianshun Zhang
- The Hormel Institute, University of Minnesota, Austin, Minnesota
| | - Xiaoyu Chang
- The Hormel Institute, University of Minnesota, Austin, Minnesota
| | - Do Young Lim
- The Hormel Institute, University of Minnesota, Austin, Minnesota
| | - Keke Wang
- The Hormel Institute, University of Minnesota, Austin, Minnesota
| | - Ruihua Bai
- The Hormel Institute, University of Minnesota, Austin, Minnesota
- The Henan Tumor Hospital, Zhengzhou, Henan, China
| | - Ting Wang
- The Hormel Institute, University of Minnesota, Austin, Minnesota
| | - Joohyun Ryu
- The Hormel Institute, University of Minnesota, Austin, Minnesota
| | - Hanyong Chen
- The Hormel Institute, University of Minnesota, Austin, Minnesota
| | - Ke Yao
- The Hormel Institute, University of Minnesota, Austin, Minnesota
| | - Wei-Ya Ma
- The Hormel Institute, University of Minnesota, Austin, Minnesota
| | - Lisa A Boardman
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | - Ann M Bode
- The Hormel Institute, University of Minnesota, Austin, Minnesota
| | - Zigang Dong
- The Hormel Institute, University of Minnesota, Austin, Minnesota.
- Department of Pathophysiology, School of Basic Medical Sciences, College of Medicine, Zhengzhou University, Zhengzhou, Henan, China
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Yu Z, Li Q, An Y, Chen X, Liu Z, Li Z, Gao J, Aung LHH, Li P. Role of apoptosis repressor with caspase recruitment domain (ARC) in cancer. Oncol Lett 2019; 18:5691-5698. [PMID: 31788041 PMCID: PMC6865693 DOI: 10.3892/ol.2019.10981] [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: 03/07/2019] [Accepted: 09/11/2019] [Indexed: 11/06/2022] Open
Abstract
Apoptosis repressor with caspase recruitment domain (ARC) is a potent inhibitor of apoptosis. Under physiological conditions, ARC is abundantly expressed in terminally differentiated cells, including cardiomyocytes, skeletal muscles and neurons. ARC serves a key role in determining cell fate, and abnormal ARC expression has been demonstrated to be associated with abnormal cell growth. Previous studies have revealed that ARC was upregulated in several different types of solid tumor, where it suppressed tumor cell apoptosis. Furthermore, the increased expression levels of ARC in cancer cells contributed to the development of therapeutic resistance and adverse clinical outcomes in patients with leukemia. However, the exact role of ARC, as well as the underlying molecular mechanisms involved, remain poorly understood. The present review summarizes the characteristics of ARC and its cytoprotective role under different conditions and describes the potential ARC as a new target for cancer therapy.
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Affiliation(s)
- Zhongjie Yu
- Center for Molecular Genetics, Institute for Translational Medicine, Qingdao University, Qingdao, Shandong 266000, P.R. China.,School of Basic Medicine, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Qi Li
- Department of Emergency Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Yi An
- Department of Cardiology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Xiatian Chen
- Center for Molecular Genetics, Institute for Translational Medicine, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Ziqian Liu
- Center for Molecular Genetics, Institute for Translational Medicine, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Zhe Li
- Center for Molecular Genetics, Institute for Translational Medicine, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Jinning Gao
- Center for Molecular Genetics, Institute for Translational Medicine, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Lynn Htet Htet Aung
- Center for Molecular Genetics, Institute for Translational Medicine, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Peifeng Li
- Center for Molecular Genetics, Institute for Translational Medicine, Qingdao University, Qingdao, Shandong 266000, P.R. China
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7
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Yu Z, Li Q, An Y, Chen X, Liu Z, Li Z, Gao J, Aung LHH, Li P. Role of apoptosis repressor with caspase recruitment domain (ARC) in cancer. Oncol Lett 2019. [PMID: 31788041 DOI: 10.3892/ol.2019.10981/abstract] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023] Open
Abstract
Apoptosis repressor with caspase recruitment domain (ARC) is a potent inhibitor of apoptosis. Under physiological conditions, ARC is abundantly expressed in terminally differentiated cells, including cardiomyocytes, skeletal muscles and neurons. ARC serves a key role in determining cell fate, and abnormal ARC expression has been demonstrated to be associated with abnormal cell growth. Previous studies have revealed that ARC was upregulated in several different types of solid tumor, where it suppressed tumor cell apoptosis. Furthermore, the increased expression levels of ARC in cancer cells contributed to the development of therapeutic resistance and adverse clinical outcomes in patients with leukemia. However, the exact role of ARC, as well as the underlying molecular mechanisms involved, remain poorly understood. The present review summarizes the characteristics of ARC and its cytoprotective role under different conditions and describes the potential ARC as a new target for cancer therapy.
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Affiliation(s)
- Zhongjie Yu
- Center for Molecular Genetics, Institute for Translational Medicine, Qingdao University, Qingdao, Shandong 266000, P.R. China
- School of Basic Medicine, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Qi Li
- Department of Emergency Medicine, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Yi An
- Department of Cardiology, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Xiatian Chen
- Center for Molecular Genetics, Institute for Translational Medicine, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Ziqian Liu
- Center for Molecular Genetics, Institute for Translational Medicine, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Zhe Li
- Center for Molecular Genetics, Institute for Translational Medicine, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Jinning Gao
- Center for Molecular Genetics, Institute for Translational Medicine, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Lynn Htet Htet Aung
- Center for Molecular Genetics, Institute for Translational Medicine, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Peifeng Li
- Center for Molecular Genetics, Institute for Translational Medicine, Qingdao University, Qingdao, Shandong 266000, P.R. China
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8
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Yang RM, Nanayakkara D, Kalimutho M, Mitra P, Khanna KK, Dray E, Gonda TJ. MYB regulates the DNA damage response and components of the homology-directed repair pathway in human estrogen receptor-positive breast cancer cells. Oncogene 2019; 38:5239-5249. [PMID: 30971760 DOI: 10.1038/s41388-019-0789-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 02/20/2019] [Accepted: 03/07/2019] [Indexed: 11/09/2022]
Abstract
Over 70% of human breast cancers are estrogen receptor-positive (ER+), most of which express MYB. In these and other cell types, the MYB transcription factor regulates the expression of many genes involved in cell proliferation, differentiation, tumorigenesis, and apoptosis. So far, no clear link has been established between MYB and the DNA damage response in breast cancer. Here, we found that silencing MYB in the ER+ breast cancer cell line MCF-7 led to increased DNA damage accumulation, as marked by increased γ-H2AX foci following induction of double-stranded breaks. We further found that this was likely mediated by decreased homologous recombination-mediated repair (HRR), since silencing MYB impaired the formation of RAD51 foci in response to DNA damage. Moreover, cells depleted for MYB exhibited reduced expression of several key genes involved in HRR including BRCA1, PALB2, and TOPBP1. Taken together, these data imply that MYB and its targets play an important role in the response of ER+ breast cancer cells to DNA damage, and suggest that induction of DNA damage along with inhibition of MYB activity could offer therapeutic benefits for ER+ breast cancer and possibly other cancer types.
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Affiliation(s)
- Ren-Ming Yang
- School of Pharmacy, University of Queensland, Brisbane, QLD, 4102, Australia.,Keck School of Medicine at the Children's Hospital Los Angeles Campus, University of Southern California, Los Angeles, CA, 90027, USA
| | - Devathri Nanayakkara
- Signal Transduction Laboratory, QIMR Berghofer Medical Research Institute, Herston, QLD, 4006, Australia
| | - Murugan Kalimutho
- Signal Transduction Laboratory, QIMR Berghofer Medical Research Institute, Herston, QLD, 4006, Australia
| | - Partha Mitra
- School of Pharmacy, University of Queensland, Brisbane, QLD, 4102, Australia.,Institute of Health and Biomedical Innovation, Queensland University of Technology, TRI, 37 Kent Street, Woolloongabba, QLD, 4102, Australia
| | - Kum Kum Khanna
- Signal Transduction Laboratory, QIMR Berghofer Medical Research Institute, Herston, QLD, 4006, Australia
| | - Eloise Dray
- Institute of Health and Biomedical Innovations, QUT at the Translational Research Institute, Brisbane, QLD, 4102, Australia. .,Mater Research/UQ at the Translational Research Institute, Brisbane, QLD, 4102, Australia. .,University of Texas Health, San Antonio, Department of Biochemistry and Structural Biology, 7703 Floyd Curl Drive, San Antonio, TX, 78229-3900, USA.
| | - Thomas J Gonda
- School of Pharmacy, University of Queensland, Brisbane, QLD, 4102, Australia. .,University of South Australia Cancer Research Institute, Adelaide, SA, 5000, Australia.
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Apoptosis repressor with caspase recruitment domain deficiency accelerates ischemia/reperfusion (I/R)-induced acute kidney injury by suppressing inflammation and apoptosis: The role of AKT/mTOR signaling. Biomed Pharmacother 2019; 112:108681. [PMID: 30970510 DOI: 10.1016/j.biopha.2019.108681] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2018] [Revised: 02/10/2019] [Accepted: 02/10/2019] [Indexed: 12/16/2022] Open
Abstract
Acute kidney injury (AKI) is a significant medical problem worldwide. Ischemia-reperfusion (I/R) injury of the kidney is a major cause of AKI. However, the pathogenesis that contributes to renal I/R injury is still unclear. Apoptosis repressor with caspase recruitment domain (ARC) is abundantly expressed in various tissues, and has been reported to play a strong protective role during pathological processes. Our results indicated that ARC expression was decreased in the reperfused kidneys. ARC deficiency markedly accelerated renal dysfunction, promoted reperfusion-regulated tubular epithelial cell apoptosis, and enhanced the vulnerability of kidney to I/R damage. Furthermore, in the kidney samples of mice underwent renal I/R injury, ARC knockout significantly accelerated the expression levels of inflammatory factors, including interleukin (IL)-1β, IL-6, tumor necrosis factor a (TNF-α), monocyte chemoattractant protein-1 (MCP-1) and IL-2. In addition, renal I/R injury-induced apoptosis was further exacerbated in ARC-deficient mice through promoting the expression of cleaved Caspase-3 and poly (ADP-ribose) polymerase (PARP). From the molecular level, ARC deletion obviously accelerated mitochondrial injury, as evidenced by the further decreased adenosine triphosphate (ATP) levels and mitochondrial potential in hypoxia-reoxygenation (H/R)-treated cells. Moreover, ARC knockout exacerbated AKI through activating phosphorylated protein kinase B (AKT), mammalian target of Rapamycin (mTOR) and p53, whereas reducing phosphorylated glycogen synthase kinase 3β (GSK3β). Of note, blocking AKT/mTOR signaling markedly attenuated inflammation, mitochondrial damage and apoptosis stimulated by H/R in ARC knockdown cells. In summary, our results suggested that ARC played a pivotal role in the pathogenesis of AKI induced by renal I/R operation through regulating AKT/mTOR signaling.
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10
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Verbrugge SAJ, Schönfelder M, Becker L, Yaghoob Nezhad F, Hrabě de Angelis M, Wackerhage H. Genes Whose Gain or Loss-Of-Function Increases Skeletal Muscle Mass in Mice: A Systematic Literature Review. Front Physiol 2018; 9:553. [PMID: 29910734 PMCID: PMC5992403 DOI: 10.3389/fphys.2018.00553] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 04/30/2018] [Indexed: 12/20/2022] Open
Abstract
Skeletal muscle mass differs greatly in mice and humans and this is partially inherited. To identify muscle hypertrophy candidate genes we conducted a systematic review to identify genes whose experimental loss or gain-of-function results in significant skeletal muscle hypertrophy in mice. We found 47 genes that meet our search criteria and cause muscle hypertrophy after gene manipulation. They are from high to small effect size: Ski, Fst, Acvr2b, Akt1, Mstn, Klf10, Rheb, Igf1, Pappa, Ppard, Ikbkb, Fstl3, Atgr1a, Ucn3, Mcu, Junb, Ncor1, Gprasp1, Grb10, Mmp9, Dgkz, Ppargc1a (specifically the Ppargc1a4 isoform), Smad4, Ltbp4, Bmpr1a, Crtc2, Xiap, Dgat1, Thra, Adrb2, Asb15, Cast, Eif2b5, Bdkrb2, Tpt1, Nr3c1, Nr4a1, Gnas, Pld1, Crym, Camkk1, Yap1, Inhba, Tp53inp2, Inhbb, Nol3, Esr1. Knock out, knock down, overexpression or a higher activity of these genes causes overall muscle hypertrophy as measured by an increased muscle weight or cross sectional area. The mean effect sizes range from 5 to 345% depending on the manipulated gene as well as the muscle size variable and muscle investigated. Bioinformatical analyses reveal that Asb15, Klf10, Tpt1 are most highly expressed hypertrophy genes in human skeletal muscle when compared to other tissues. Many of the muscle hypertrophy-regulating genes are involved in transcription and ubiquitination. Especially genes belonging to three signaling pathways are able to induce hypertrophy: (a) Igf1-Akt-mTOR pathway, (b) myostatin-Smad signaling, and (c) the angiotensin-bradykinin signaling pathway. The expression of several muscle hypertrophy-inducing genes and the phosphorylation of their protein products changes after human resistance and high intensity exercise, in maximally stimulated mouse muscle or in overloaded mouse plantaris.
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Affiliation(s)
- Sander A. J. Verbrugge
- Exercise Biology Group, Faculty of Sport and Health Sciences, Technical University of Munich, Munich, Germany
| | - Martin Schönfelder
- Exercise Biology Group, Faculty of Sport and Health Sciences, Technical University of Munich, Munich, Germany
| | - Lore Becker
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, Neuherberg, Germany
| | - Fakhreddin Yaghoob Nezhad
- Exercise Biology Group, Faculty of Sport and Health Sciences, Technical University of Munich, Munich, Germany
| | - Martin Hrabě de Angelis
- German Mouse Clinic, Institute of Experimental Genetics, Helmholtz Zentrum München, Neuherberg, Germany
- Chair of Experimental Genetics, School of Life Science Weihenstephan, Technische Universität München, Freising, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Henning Wackerhage
- Exercise Biology Group, Faculty of Sport and Health Sciences, Technical University of Munich, Munich, Germany
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11
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DeBoever C, Tanigawa Y, Lindholm ME, McInnes G, Lavertu A, Ingelsson E, Chang C, Ashley EA, Bustamante CD, Daly MJ, Rivas MA. Medical relevance of protein-truncating variants across 337,205 individuals in the UK Biobank study. Nat Commun 2018; 9:1612. [PMID: 29691392 PMCID: PMC5915386 DOI: 10.1038/s41467-018-03910-9] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Accepted: 03/21/2018] [Indexed: 02/08/2023] Open
Abstract
Protein-truncating variants can have profound effects on gene function and are critical for clinical genome interpretation and generating therapeutic hypotheses, but their relevance to medical phenotypes has not been systematically assessed. Here, we characterize the effect of 18,228 protein-truncating variants across 135 phenotypes from the UK Biobank and find 27 associations between medical phenotypes and protein-truncating variants in genes outside the major histocompatibility complex. We perform phenome-wide analyses and directly measure the effect in homozygous carriers, commonly referred to as “human knockouts,” across medical phenotypes for genes implicated as being protective against disease or associated with at least one phenotype in our study. We find several genes with strong pleiotropic or non-additive effects. Our results illustrate the importance of protein-truncating variants in a variety of diseases. Protein-truncating variants (PTVs) are predicted to significantly affect a gene’s function and, thus, human traits. Here, DeBoever et al. systematically analyze PTVs in more than 300,000 individuals across 135 phenotypes and identify 27 associations between PTVs and medical conditions.
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Affiliation(s)
- Christopher DeBoever
- Department of Biomedical Data Science, Stanford University, Stanford, CA, 94305, USA.,Department of Genetics, Stanford University, Stanford, CA, 94305, USA
| | - Yosuke Tanigawa
- Department of Biomedical Data Science, Stanford University, Stanford, CA, 94305, USA
| | | | - Greg McInnes
- Department of Biomedical Data Science, Stanford University, Stanford, CA, 94305, USA
| | - Adam Lavertu
- Department of Biomedical Data Science, Stanford University, Stanford, CA, 94305, USA
| | - Erik Ingelsson
- Division of Cardiovascular Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Chris Chang
- Grail, Inc., 1525 O'Brien Drive, Menlo Park, CA, 94025, USA
| | - Euan A Ashley
- Department of Medicine, School of Medicine, Stanford University, Stanford, CA, 94305, USA
| | - Carlos D Bustamante
- Department of Biomedical Data Science, Stanford University, Stanford, CA, 94305, USA.,Department of Genetics, Stanford University, Stanford, CA, 94305, USA
| | - Mark J Daly
- Analytical and Translational Genetics Unit, Boston, MA, 02114, USA.,Broad Institute of MIT and Harvard, Cambridge, 02142, MA, USA
| | - Manuel A Rivas
- Department of Biomedical Data Science, Stanford University, Stanford, CA, 94305, USA.
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12
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Banerjee A, Vest KE, Pavlath GK, Corbett AH. Nuclear poly(A) binding protein 1 (PABPN1) and Matrin3 interact in muscle cells and regulate RNA processing. Nucleic Acids Res 2017; 45:10706-10725. [PMID: 28977530 PMCID: PMC5737383 DOI: 10.1093/nar/gkx786] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 08/27/2017] [Indexed: 01/01/2023] Open
Abstract
The polyadenylate binding protein 1 (PABPN1) is a ubiquitously expressed RNA binding protein vital for multiple steps in RNA metabolism. Although PABPN1 plays a critical role in the regulation of RNA processing, mutation of the gene encoding this ubiquitously expressed RNA binding protein causes a specific form of muscular dystrophy termed oculopharyngeal muscular dystrophy (OPMD). Despite the tissue-specific pathology that occurs in this disease, only recently have studies of PABPN1 begun to explore the role of this protein in skeletal muscle. We have used co-immunoprecipitation and mass spectrometry to identify proteins that interact with PABPN1 in mouse skeletal muscles. Among the interacting proteins we identified Matrin 3 (MATR3) as a novel protein interactor of PABPN1. The MATR3 gene is mutated in a form of distal myopathy and amyotrophic lateral sclerosis (ALS). We demonstrate, that like PABPN1, MATR3 is critical for myogenesis. Furthermore, MATR3 controls critical aspects of RNA processing including alternative polyadenylation and intron retention. We provide evidence that MATR3 also binds and regulates the levels of long non-coding RNA (lncRNA) Neat1 and together with PABPN1 is required for normal paraspeckle function. We demonstrate that PABPN1 and MATR3 are required for paraspeckles, as well as for adenosine to inosine (A to I) RNA editing of Ctn RNA in muscle cells. We provide a functional link between PABPN1 and MATR3 through regulation of a common lncRNA target with downstream impact on paraspeckle morphology and function. We extend our analysis to a mouse model of OPMD and demonstrate altered paraspeckle morphology in the presence of endogenous levels of alanine-expanded PABPN1. In this study, we report protein-binding partners of PABPN1, which could provide insight into novel functions of PABPN1 in skeletal muscle and identify proteins that could be sequestered with alanine-expanded PABPN1 in the nuclear aggregates found in OPMD.
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Affiliation(s)
- Ayan Banerjee
- Department of Biology, Emory University, Atlanta, GA 30322, USA
| | - Katherine E Vest
- Department of Pharmacology, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Grace K Pavlath
- Department of Pharmacology, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Anita H Corbett
- Department of Biology, Emory University, Atlanta, GA 30322, USA
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13
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Vorobej K, Mitchell AS, Smith IC, Donath S, Russell Tupling A, Quadrilatero J. The effect of ARC ablation on skeletal muscle morphology, function, and apoptotic signaling during aging. Exp Gerontol 2017; 101:69-79. [PMID: 29056555 DOI: 10.1016/j.exger.2017.10.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 10/11/2017] [Accepted: 10/18/2017] [Indexed: 12/24/2022]
Abstract
Augmented apoptotic signaling can result in degradation of skeletal muscle proteins and loss of myonuclei, ultimately contributing to muscle atrophy and contractile dysfunction. Apoptosis repressor with caspase recruitment domain (ARC) is an anti-apoptotic protein highly expressed in skeletal muscle. Here we examined the role of ARC on age-related skeletal muscle apoptosis and wasting by utilizing an ARC-deficient mouse model. Aged mice displayed a number of morphological, phenotypic, and contractile alterations in both soleus and plantaris muscle with aging. Although no differences were found in proteolytic enzyme activity, ARC protein decreased while several anti-apoptotic proteins (e.g., BCL2, BCLXL, HSP70, and XIAP) and the release of mitochondrial housed protein (i.e., SMAC, AIF) increased in aged muscle. Importantly, ARC KO mice had low muscle weights and fewer fibers in soleus, with 2-year-old ARC KO mice displaying lower mitochondrial BCL2 protein along with augmented release of CYTC and SMAC in red/oxidative muscle. Overall, these results indicate that aged skeletal muscle undergoes atrophy as well as contractile and fiber type composition alterations despite an increase in anti-apoptotic protein expression. Although some mitochondrial-specific apoptotic alterations occurred in skeletal muscle due to ARC ablation over the lifespan, our data suggest that ARC may not have a large influence during skeletal muscle aging.
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Affiliation(s)
- Kira Vorobej
- Department of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada
| | - Andrew S Mitchell
- Department of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada
| | - Ian C Smith
- Department of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada
| | - Stefan Donath
- Max-Delbrück Center for Molecular Medicine, Berlin, Germany; Center for Stroke Research Berlin, Charite-University Medicine, Berlin, Germany; Department of Cardiology and Nephrology, HELIOS Clinics GmbH, Berlin, Germany
| | - A Russell Tupling
- Department of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada
| | - Joe Quadrilatero
- Department of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada.
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14
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Bueno CRDS, Pereira M, Favaretto IA, Bortoluci CHF, dos Santos TCP, Dias DV, Daré LR, Rosa GM. Electrical stimulation attenuates morphological alterations and prevents atrophy of the denervated cranial tibial muscle. EINSTEIN-SAO PAULO 2017; 15:71-76. [PMID: 28444093 PMCID: PMC5433311 DOI: 10.1590/s1679-45082017ao3808] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Accepted: 01/05/2017] [Indexed: 01/06/2023] Open
Abstract
OBJECTIVE To investigate if electrical stimulation through Russian current is able to maintain morphology of the cranial tibial muscle of experimentally denervated rats. METHODS Thirty-six Wistar rats were divided into four groups: the Initial Control Group, Final Control Group, Experimental Denervated and Treated Group, Experimental Denervated Group. The electrostimulation was performed with a protocol of Russian current applied three times per week, for 45 days. At the end, the animals were euthanized and histological and morphometric analyses were performed. Data were submitted to statistical analysis with a significance level of p<0.05. RESULTS The Experimental Denervated Group and the Experimental Denervated and Treated Group had cross-sectional area of smaller fiber compared to the Final Control Group. However, there was significant difference between the Experimental Denervated Group and Experimental Denervated and Treated Group, showing that electrical stimulation minimized muscle atrophy. The Experimental Denervated and Treated Group and Initial Control Group showed similar results. CONCLUSION Electrical stimulation through Russian current acted favorably in maintaining morphology of the cranial tibial muscle that was experimentally denervated, minimizing muscle atrophy. OBJETIVO Investigar se a estimulação elétrica pela corrente russa é capaz de manter a morfologia do músculo tibial cranial de ratos desnervados experimentalmente. MÉTODOS Foram utilizados 36 ratos Wistar, distribuídos em quatro grupos: Grupo Controle Inicial, Grupo Controle Final, Grupo Experimental Desnervado Tratado, Grupo Experimental Desnervado. A eletroestimulação foi realizada com um protocolo de corrente russa aplicada três vezes por semanas, durante 45 dias. Ao final, os animais foram eutanasiados e, em seguida, foram realizadas as análises histológica e morfométrica. Os dados foram submetidos à análise estatística, com nível de significância de p<0,05. RESULTADOS Os Grupos Experimental Desnervado e o Grupo Experimental Desnervado Tratado apresentaram área de secção transversal da fibra menor quando comparados ao Grupo Controle Final. Entretanto, constatou-se diferença significativa entre o Grupo Experimental Desnervado e o Grupo Experimental Desnervado Tratado, mostrando que a estimulação elétrica minimizou atrofia muscular. Ainda, observou-se que o Grupo Experimental Desnervado Tratado apresentou resultados semelhantes ao Grupo Controle Inicial. CONCLUSÃO A estimulação elétrica por meio da corrente russa foi favorável na manutenção da morfologia do músculo tibial cranial desnervado experimentalmente, minimizando a atrofia muscular.
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Affiliation(s)
| | - Mizael Pereira
- Faculdade de Odontologia, Universidade de São Paulo, Bauru, SP, Brazil
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15
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Bloemberg D, Quadrilatero J. Caspase activity and apoptotic signaling in proliferating C2C12 cells following cisplatin or A23187 exposure. Data Brief 2016; 7:1024-30. [PMID: 27104214 PMCID: PMC4826590 DOI: 10.1016/j.dib.2016.03.032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Revised: 03/01/2016] [Accepted: 03/05/2016] [Indexed: 11/30/2022] Open
Abstract
Investigating cell death signaling using cell culture is commonly performed to examine the effects of novel pharmaceuticals or to further characterize discrete cellular signaling pathways. Here, we provide data regarding the cell death response to either cisplatin or A23187 in sub-confluent C2C12 cells, by utilizing several concentrations and incubation times for each chemical. These data include an assessment of the activation of the proteolytic enzymes caspase-3, caspase-8, caspase-9, calpain, and cathepsin B/L. Additionally, the expression of the apoptosis-regulating proteins Bax, Bcl2, and p53 are presented.
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Affiliation(s)
- Darin Bloemberg
- Department of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada
| | - Joe Quadrilatero
- Department of Kinesiology, University of Waterloo, Waterloo, Ontario, Canada
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16
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Data on skeletal muscle apoptosis, autophagy, and morphology in mice treated with doxorubicin. Data Brief 2016; 7:786-93. [PMID: 27077080 PMCID: PMC4816877 DOI: 10.1016/j.dib.2016.03.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Revised: 02/26/2016] [Accepted: 03/01/2016] [Indexed: 12/21/2022] Open
Abstract
Skeletal muscle apoptosis and autophagy are catabolic processes that contribute to muscle atrophy during aging, disease, and following muscle injury. In this article, we present data on skeletal muscle apoptosis, autophagy, and morphology in C57BL/6 mice following doxorubicin administration. More specifically, time-course data on caspase-3, caspase-8, caspase-9, calpain, and cathepsin activity are presented, along with data on ATG7, p62, LC3-I, and LC3-II protein expression. Data on skeletal muscle reactive oxygen species (ROS) production, muscle morphology, as well as body and muscle weights are also presented.
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