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Mitrokhin V, Bilichenko A, Kazanski V, Schobik R, Shileiko S, Revkova V, Kalsin V, Kamkina O, Kamkin A, Mladenov M. Transcriptomic profile of the mechanosensitive ion channelome in human cardiac fibroblasts. Exp Biol Med (Maywood) 2023; 248:2341-2350. [PMID: 38158807 PMCID: PMC10903254 DOI: 10.1177/15353702231218488] [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: 04/13/2023] [Accepted: 09/27/2023] [Indexed: 01/03/2024] Open
Abstract
Human cardiac fibroblasts (HCFs) have mRNA transcripts that encode different mechanosensitive ion channels and channel regulatory proteins whose functions are not known yet. The primary goal of this work was to define the mechanosensitive ion channelome of HCFs. The most common type of cationic channel is the transient receptor potential (TRP) family, which is followed by the TWIK-related K+ channel (TREK), transmembrane protein 63 (TMEM63), and PIEZO channel (PIEZO) families. In the sodium-dependent NON-voltage-gated channel (SCNN) subfamily, only SCNN1D was shown to be highly expressed. Particular members of the acid-sensing ion channel (ASIC) (ASIC1 and ASIC3) subfamilies were also significantly expressed. The transcripts per kilobase million (TPMs) for Piezo 2 were almost 100 times less abundant than those for Piezo 1. The tandem of P domains in a weak inward rectifying K+ channel (TWIK)-2 channel, TWIK-related acid-sensitive K+ channel (TASK)-5, TASK-1, and the TWIK-related K1 (TREK-1) channel were the four most prevalent types in the K2P subfamily. The highest expression in the TRPP subfamily was found for PKD2 and PKD1, while in the TRPM subfamily, it was found for TRPM4, TRPM7, and TRPM3. TRPV2, TRPV4, TRPV3, and TRPV6 (all members of the TRPV subfamily) were also substantially expressed. A strong expression of the TRPC1, TRPC4, TRPC6, and TRPC2 channels and all members of the TRPML subfamily (MCOLN1, MCOLN2, and MCOLN3) was also shown. In terms of the transmembrane protein 16 (TMEM16) family, the HCFs demonstrated significant expression of the TMEM16H, TMEM16F, TMEM16J, TMEM16A, and TMEM16G channels. TMC3 is the most expressed channel in HCFs of all known members of the transmembrane channel-like protein (TMC) family. This analysis of the mechanosensitive ionic channel transcriptome in HCFs: (1) agrees with previously documented findings that all currently identified mechanosensitive channels play a significant and well recognized physiological function in elucidating the mechanosensitive characteristics of HCFs; (2) supports earlier preliminary reports that point to the most common expression of the TRP mechanosensitive family in HCFs; and (3) points to other new mechanosensitive channels (TRPC1, TRPC2, TWIK-2, TMEM16A, ASIC1, and ASIC3).
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Affiliation(s)
- Vadim Mitrokhin
- Department of Physiology, Pirogov Russian National Research Medical University, Moscow 117997, Russia
| | - Andrei Bilichenko
- Department of Physiology, Pirogov Russian National Research Medical University, Moscow 117997, Russia
| | - Viktor Kazanski
- Department of Physiology, Pirogov Russian National Research Medical University, Moscow 117997, Russia
| | - Roman Schobik
- Department of Physiology, Pirogov Russian National Research Medical University, Moscow 117997, Russia
| | - Stanislav Shileiko
- Department of Physiology, Pirogov Russian National Research Medical University, Moscow 117997, Russia
| | - Veronika Revkova
- Department of Physiology, Pirogov Russian National Research Medical University, Moscow 117997, Russia
| | - Vladimir Kalsin
- Department of Physiology, Pirogov Russian National Research Medical University, Moscow 117997, Russia
| | - Olga Kamkina
- Department of Physiology, Pirogov Russian National Research Medical University, Moscow 117997, Russia
| | - Andre Kamkin
- Department of Physiology, Pirogov Russian National Research Medical University, Moscow 117997, Russia
| | - Mitko Mladenov
- Department of Physiology, Pirogov Russian National Research Medical University, Moscow 117997, Russia
- Institute of Biology, Faculty of Natural Sciences and Mathematics, Ss. Cyril and Methodius University in Skopje, 1000 Skopje, North Macedonia
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Xiao Y, Powell DW, Liu X, Li Q. Cardiovascular manifestations of inflammatory bowel diseases and the underlying pathogenic mechanisms. Am J Physiol Regul Integr Comp Physiol 2023; 325:R193-R211. [PMID: 37335014 PMCID: PMC10979804 DOI: 10.1152/ajpregu.00300.2022] [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: 11/22/2022] [Revised: 06/01/2023] [Accepted: 06/01/2023] [Indexed: 06/21/2023]
Abstract
Inflammatory bowel disease (IBD), consisting of ulcerative colitis and Crohn's disease, mainly affects the gastrointestinal tract but is also known to have extraintestinal manifestations because of long-standing systemic inflammation. Several national cohort studies have found that IBD is an independent risk factor for the development of cardiovascular disorders. However, the molecular mechanisms by which IBD impairs the cardiovascular system are not fully understood. Although the gut-heart axis is attracting more attention in recent years, our knowledge of the organ-to-organ communication between the gut and the heart remains limited. In patients with IBD, upregulated inflammatory factors, altered microRNAs and lipid profiles, as well as dysbiotic gut microbiota, may induce adverse cardiac remodeling. In addition, patients with IBD have a three- to four times higher risk of developing thrombosis than people without IBD, and it is believed that the increased risk of thrombosis is largely due to increased procoagulant factors, platelet count/activity, and fibrinogen concentration, in addition to decreased anticoagulant factors. The predisposing factors for atherosclerosis are present in IBD and the possible mechanisms may involve oxidative stress system, overexpression of matrix metalloproteinases, and changes in vascular smooth muscle phenotype. This review focuses mainly on 1) the prevalence of cardiovascular diseases associated with IBD, 2) the potential pathogenic mechanisms of cardiovascular diseases in patients with IBD, and 3) adverse effects of IBD drugs on the cardiovascular system. Also, we introduce here a new paradigm for the gut-heart axis that includes exosomal microRNA and the gut microbiota as a cause for cardiac remodeling and fibrosis.
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Affiliation(s)
- Ying Xiao
- Department of Gastroenterology, Xiangya Hospital, Central South University, Changsha, China
- Division of Gastroenterology, Department of Internal Medicine, University of Texas Medical Branch at Galveston, Galveston, Texas, United States
| | - Don W Powell
- Division of Gastroenterology, Department of Internal Medicine, University of Texas Medical Branch at Galveston, Galveston, Texas, United States
| | - Xiaowei Liu
- Department of Gastroenterology, Xiangya Hospital, Central South University, Changsha, China
| | - Qingjie Li
- Division of Gastroenterology, Department of Internal Medicine, University of Texas Medical Branch at Galveston, Galveston, Texas, United States
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Xing C, Bao L, Li W, Fan H. Progress on role of ion channels of cardiac fibroblasts in fibrosis. Front Physiol 2023; 14:1138306. [PMID: 36969589 PMCID: PMC10033868 DOI: 10.3389/fphys.2023.1138306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 02/27/2023] [Indexed: 03/29/2023] Open
Abstract
Cardiac fibrosis is defined as excessive deposition of extracellular matrix (ECM) in pathological conditions. Cardiac fibroblasts (CFs) activated by injury or inflammation differentiate into myofibroblasts (MFs) with secretory and contractile functions. In the fibrotic heart, MFs produce ECM which is composed mainly of collagen and is initially involved in maintaining tissue integrity. However, persistent fibrosis disrupts the coordination of excitatory contractile coupling, leading to systolic and diastolic dysfunction, and ultimately heart failure. Numerous studies have demonstrated that both voltage- and non-voltage-gated ion channels alter intracellular ion levels and cellular activity, contributing to myofibroblast proliferation, contraction, and secretory function. However, an effective treatment strategy for myocardial fibrosis has not been established. Therefore, this review describes the progress made in research related to transient receptor potential (TRP) channels, Piezo1, Ca2+ release-activated Ca2+ (CRAC) channels, voltage-gated Ca2+ channels (VGCCs), sodium channels, and potassium channels in myocardial fibroblasts with the aim of providing new ideas for treating myocardial fibrosis.
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Li H, An JR, Seo MS, Kang M, Heo R, Park S, Mun SY, Bae YM, Han ET, Han JH, Chun W, Na SH, Park WS. Downregulation of large-conductance Ca 2+-activated K + channels in human umbilical arterial smooth muscle cells in gestational diabetes mellitus. Life Sci 2022; 288:120169. [PMID: 34822796 DOI: 10.1016/j.lfs.2021.120169] [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: 10/19/2021] [Revised: 11/10/2021] [Accepted: 11/18/2021] [Indexed: 11/25/2022]
Abstract
AIMS We investigated the changes in large-conductance Ca2+-activated K+ (BKCa) channels from human umbilical arterial smooth muscle cells experiencing gestational diabetes mellitus (GDM). MAIN METHODS Whole-cell patch-clamp technique, arterial tone measurement, RT-PCR, Quantitative real-time PCR, western blot were performed in human umbilical arterial smooth muscle cells. KEY FINDINGS Whole-cell BKCa current density was decreased in the GDM group compared with the normal group. The vasorelaxant effects of the synthetic BKCa channel activator NS-1619 (10 μM) were impaired in the GDM group compared with the normal group. Reverse-transcription polymerase chain reaction (RT-PCR), real-time RT-PCR, and western blot analyses suggested that the mRNA, total RNA, and protein expression levels of the BKCa channel were decreased in the GDM group relative to the normal group. In addition, the expression levels of protein kinase A and protein kinase G, which regulate BKCa channel activity, remained unchanged between the groups. Applying the BKCa channel inhibitor paxilline (10 μM) induced vasoconstriction and membrane depolarization of isolated umbilical arteries in the normal group but showed less of an effect on umbilical arteries in the GDM group. SIGNIFICANCE Our results demonstrate for the first time impaired BKCa current and BKCa channel-induced vasorelaxation activities that were not caused by impaired BKCa channel-regulated protein kinases, but by decreased expression of the BKCa channels, in the umbilical arteries of GDM patients.
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Affiliation(s)
- Hongliang Li
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou 225001, Jiangsu, China
| | - Jin Ryeol An
- Institute of Medical Sciences, Department of Physiology, Kangwon National University School of Medicine, Chuncheon 24341, South Korea
| | - Mi Seon Seo
- Department of Physiology, Konkuk University School of Medicine, Chungju 27478, South Korea
| | - Minji Kang
- Institute of Medical Sciences, Department of Physiology, Kangwon National University School of Medicine, Chuncheon 24341, South Korea
| | - Ryeon Heo
- Institute of Medical Sciences, Department of Physiology, Kangwon National University School of Medicine, Chuncheon 24341, South Korea
| | - Seojin Park
- Institute of Medical Sciences, Department of Physiology, Kangwon National University School of Medicine, Chuncheon 24341, South Korea
| | - Seo-Yeong Mun
- Institute of Medical Sciences, Department of Physiology, Kangwon National University School of Medicine, Chuncheon 24341, South Korea
| | - Young Min Bae
- Department of Physiology, Konkuk University School of Medicine, Chungju 27478, South Korea
| | - Eun-Taek Han
- Department of Medical Environmental Biology and Tropical Medicine, Kangwon National University School of Medicine, Chuncheon 24341, South Korea
| | - Jin-Hee Han
- Department of Medical Environmental Biology and Tropical Medicine, Kangwon National University School of Medicine, Chuncheon 24341, South Korea
| | - Wanjoo Chun
- Department of Pharmacology, Kangwon National University School of Medicine, Chuncheon 24341, South Korea
| | - Sung Hun Na
- Institute of Medical Sciences, Department of Obstetrics and Gynecology, Kangwon National University Hospital, Kangwon National University School of Medicine, Chuncheon 24341, South Korea.
| | - Won Sun Park
- Institute of Medical Sciences, Department of Physiology, Kangwon National University School of Medicine, Chuncheon 24341, South Korea.
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Mitrokhin V, Gorbacheva L, Vachrushev N, Hadzi-Petrushev N, Kamkin A, Mladenov M. Cardiomyocytes' prolonged IL-2 incubation induces enhancement in L-type Ca 2+ channels mediated by inhibitory-kappaB kinase/nuclear factor-kappaB signalling. Basic Clin Pharmacol Toxicol 2021; 128:234-240. [PMID: 32946663 DOI: 10.1111/bcpt.13491] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 08/18/2020] [Accepted: 09/08/2020] [Indexed: 11/30/2022]
Abstract
The main objective of this study was to determine the primary intracellular signalling pathway affected by prolonged (2 hours) incubation in interleukin-2 (IL-2). Based on the inflammatory nature of IL-2, priority was given to the involvement of inhibitory-kappaB kinase/nuclear factor-kappaB (IKK/NF-κB) signalling. All of the experiments were performed on freshly prepared cardiomyocytes isolated from rat left ventricles. After isolation, the whole-cell voltage-clamp recordings were performed on single cells. After 2 hours of incubation in IL-2, the current at 0 mV was approximately 100% higher than at the start of the incubation. ACHP, a highly specific kinase β inhibitor, in a concentration of 10 nmol/L, caused significant reduction in the ICa,L . IL-2 (2 ng/mL) in the presence of 0.1 μmol/L IMD-0354 as a specific inhibitor of IKKβ, caused nearly no changes in the ICa,L . IL-2 (3 ng/mL) induced a significant increase in phosphorylated NF-κB p65. The cardiomyocytes incubated in a Kraftbrühe solution containing IL-2 plus PDTC as a specific inhibitor of inducible nitric oxide synthase (iNOS) for 2 hours had a similar ICa,L increase compared to the cells incubated only in IL-2. IL-2-induced enhancement in L-type Ca2+ channels was mediated by IKK/NF-κB signalling, but not via iNOS-mRNA signalling.
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Affiliation(s)
- Vadim Mitrokhin
- Department of Fundamental and Applied Physiology, Russian National Research Medical University, Moscow, Russia
| | - Lyubov Gorbacheva
- Department of Fundamental and Applied Physiology, Russian National Research Medical University, Moscow, Russia
| | - Nikita Vachrushev
- Department of Fundamental and Applied Physiology, Russian National Research Medical University, Moscow, Russia
| | - Nikola Hadzi-Petrushev
- Faculty of Natural Sciences and Mathematics, Institute of Biology "Saints Cyril and Methodius" University, Skopje, Macedonia
| | - Andre Kamkin
- Department of Fundamental and Applied Physiology, Russian National Research Medical University, Moscow, Russia
| | - Mitko Mladenov
- Department of Fundamental and Applied Physiology, Russian National Research Medical University, Moscow, Russia
- Faculty of Natural Sciences and Mathematics, Institute of Biology "Saints Cyril and Methodius" University, Skopje, Macedonia
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