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Zhang Y, Lv J, Bai J, Zhang X, Wu G, Lei X, Li W, Zhang Z. TXNIP knockdown ameliorates hepatic ischemia/reperfusion injury by inhibiting apoptosis and improving mitochondrial dysfunction via HIF-1α. Mol Cell Biochem 2024:10.1007/s11010-024-05037-6. [PMID: 38872070 DOI: 10.1007/s11010-024-05037-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 05/14/2024] [Indexed: 06/15/2024]
Abstract
This study aims to investigate whether thioredoxin-interacting protein (TXNIP) regulates cell viability, cell apoptosis and mitochondrial damage in OGD/R-induced hepatocytes and to explore its underlying mechanism. AML12 cells were cultured under oxygen-glucose deprivation/reperfusion (OGD/R) conditions. TXNIP mRNA was detected using qRT-PCR, and the TXNIP protein was analyzed using western blotting. TXNIP-targeted short hairpin RNA (sh-TXNIP) lentivirus was used to infect the AML12 cells. CCK8 and TUNEL assays were applied to detect cell viability and apoptosis, respectively. DCFH-DA probe was used to determine reactive oxygen species (ROS) release level, and JC-1 probe was used to evaluate mitochondrial membrane potential (MMP). The localization of TXNIP and HIF-1α was observed using immunofluorescence. Our results showed that TXNIP markedly increased in AML12 cells treated with OGD/R. TXNIP knockdown increased cell viability and reduced cell apoptosis under OGD/R treatment. Moreover, MMP significantly increased and ROS release decreased in cells after TXNIP knockdown under OGD/R treatment. Additionally, TXNIP knockdown markedly increased the expression of HIF-1α. HIF-1α exhibited nuclear translocation following OGD/R induction, and TXNIP knockdown further promoted it. Compared with the OGD/R + sh-TXNIP group, HIF-1α agonist ML228 inhibited cell apoptosis and ROS release, and increased MMP. However, HIF-1α inhibitor PX478 had the opposite effect. In summary, TXNIP deletion ameliorated AML12 cell injury caused by OGD/R via promoting HIF-1α expression and nuclear translocation, manifested by inhibiting cell apoptosis and alleviating mitochondrial dysfunction.
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Affiliation(s)
- Yong Zhang
- Department of Anesthesia, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157, West 5th Road, Xi'an, 710004, Shaanxi, China
| | - Jianrui Lv
- Department of Anesthesia, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157, West 5th Road, Xi'an, 710004, Shaanxi, China
| | - Jian Bai
- Department of General Surgery, Xuanwu Hospital Capital Medical University, Beijing, 100032, China
| | - Xue Zhang
- Department of General Practice, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China
| | - Gang Wu
- Department of Anesthesia, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157, West 5th Road, Xi'an, 710004, Shaanxi, China
| | - Xiaoming Lei
- Department of Anesthesia, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157, West 5th Road, Xi'an, 710004, Shaanxi, China
| | - Wei Li
- Department of Anesthesia, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157, West 5th Road, Xi'an, 710004, Shaanxi, China
| | - Zhenni Zhang
- Department of Anesthesia, The Second Affiliated Hospital of Xi'an Jiaotong University, No. 157, West 5th Road, Xi'an, 710004, Shaanxi, China.
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2
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Wei ZX, Cai XX, Fei YD, Wang Q, Hu XL, Li C, Hou JW, Yang YL, Chen TZ, Xu XL, Wang YP, Li YG. Zbtb16 increases susceptibility of atrial fibrillation in type 2 diabetic mice via Txnip-Trx2 signaling. Cell Mol Life Sci 2024; 81:88. [PMID: 38349408 PMCID: PMC10864461 DOI: 10.1007/s00018-024-05125-2] [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: 05/25/2023] [Revised: 12/10/2023] [Accepted: 01/12/2024] [Indexed: 02/15/2024]
Abstract
Atrial fibrillation (AF) is the most prevalent sustained cardiac arrhythmia, and recent epidemiological studies suggested type 2 diabetes mellitus (T2DM) is an independent risk factor for the development of AF. Zinc finger and BTB (broad-complex, tram-track and bric-a-brac) domain containing 16 (Zbtb16) serve as transcriptional factors to regulate many biological processes. However, the potential effects of Zbtb16 in AF under T2DM condition remain unclear. Here, we reported that db/db mice displayed higher AF vulnerability and Zbtb16 was identified as the most significantly enriched gene by RNA sequencing (RNA-seq) analysis in atrium. In addition, thioredoxin interacting protein (Txnip) was distinguished as the key downstream gene of Zbtb16 by Cleavage Under Targets and Tagmentation (CUT&Tag) assay. Mechanistically, increased Txnip combined with thioredoxin 2 (Trx2) in mitochondrion induced excess reactive oxygen species (ROS) release, calcium/calmodulin-dependent protein kinase II (CaMKII) overactivation, and spontaneous Ca2+ waves (SCWs) occurrence, which could be inhibited through atrial-specific knockdown (KD) of Zbtb16 or Txnip by adeno-associated virus 9 (AAV9) or Mito-TEMPO treatment. High glucose (HG)-treated HL-1 cells were used to mimic the setting of diabetic in vitro. Zbtb16-Txnip-Trx2 signaling-induced excess ROS release and CaMKII activation were also verified in HL-1 cells under HG condition. Furthermore, atrial-specific Zbtb16 or Txnip-KD reduced incidence and duration of AF in db/db mice. Altogether, we demonstrated that interrupting Zbtb16-Txnip-Trx2 signaling in atrium could decrease AF susceptibility via reducing ROS release and CaMKII activation in the setting of T2DM.
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Affiliation(s)
- Zhi-Xing Wei
- Department of Cardiology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - Xing-Xing Cai
- Department of Cardiology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - Yu-Dong Fei
- Department of Cardiology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - Qian Wang
- Department of Cardiology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - Xiao-Liang Hu
- Department of Cardiology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - Cheng Li
- Department of Cardiology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - Jian-Wen Hou
- Department of Cardiology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Yu-Li Yang
- Department of Cardiology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - Tai-Zhong Chen
- Department of Cardiology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - Xiao-Lei Xu
- Department of Biochemistry and Molecular Biology, Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN, USA
| | - Yue-Peng Wang
- Department of Cardiology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China
| | - Yi-Gang Li
- Department of Cardiology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China.
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Li A, Zhang Y, Wang J, Zhang Y, Su W, Gao F, Jiao X. Txnip Gene Knockout Ameliorated High-Fat Diet-Induced Cardiomyopathy Via Regulating Mitochondria Dynamics and Fatty Acid Oxidation. J Cardiovasc Pharmacol 2023; 81:423-433. [PMID: 36888974 PMCID: PMC10237349 DOI: 10.1097/fjc.0000000000001414] [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: 01/11/2023] [Accepted: 02/23/2023] [Indexed: 03/10/2023]
Abstract
ABSTRACT Epidemic of obesity accelerates the increase in the number of patients with obesity cardiomyopathy. Thioredoxin interacting protein (TXNIP) has been implicated in the pathogenesis of multiple cardiovascular diseases. However, its specific role in obesity cardiomyopathy is still not well understood. Here, we evaluated the role of TXNIP in obesity-induced cardiomyopathy by feeding wild-type and txnip gene knockout mice with either normal diet or high-fat diet (HFD) for 24 weeks. Our results suggested that TXNIP deficiency improved mitochondrial dysfunction via reversing the shift from mitochondrial fusion to fission in the context of chronic HFD feeding, thus promoting cardiac fatty acid oxidation to alleviate chronic HFD-induced lipid accumulation in the heart, and thereby ameliorating the cardiac function in obese mice. Our work provides a theoretical basis for TXNIP exerting as a potential therapeutic target for the interventions of obesity cardiomyopathy.
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Affiliation(s)
- Aiyun Li
- Key Laboratory of Cellular Physiology (Shanxi Medical University), Ministry of Education, and the Department of Physiology, Shanxi Medical University, Taiyuan, China; and
| | - Yichao Zhang
- Key Laboratory of Cellular Physiology (Shanxi Medical University), Ministry of Education, and the Department of Physiology, Shanxi Medical University, Taiyuan, China; and
| | - Jin Wang
- Key Laboratory of Cellular Physiology (Shanxi Medical University), Ministry of Education, and the Department of Physiology, Shanxi Medical University, Taiyuan, China; and
| | - Yan Zhang
- Key Laboratory of Cellular Physiology (Shanxi Medical University), Ministry of Education, and the Department of Physiology, Shanxi Medical University, Taiyuan, China; and
| | - Wanzhen Su
- Key Laboratory of Cellular Physiology (Shanxi Medical University), Ministry of Education, and the Department of Physiology, Shanxi Medical University, Taiyuan, China; and
| | - Feng Gao
- Sixth Clinical Medical College of Shanxi Medical University, Taiyuan, China
| | - Xiangying Jiao
- Key Laboratory of Cellular Physiology (Shanxi Medical University), Ministry of Education, and the Department of Physiology, Shanxi Medical University, Taiyuan, China; and
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4
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Dagdeviren S, Lee RT, Wu N. Physiological and Pathophysiological Roles of Thioredoxin Interacting Protein: A Perspective on Redox Inflammation and Metabolism. Antioxid Redox Signal 2023; 38:442-460. [PMID: 35754346 PMCID: PMC9968628 DOI: 10.1089/ars.2022.0022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 06/12/2022] [Indexed: 11/12/2022]
Abstract
Significance: Thioredoxin interacting protein (TXNIP) is a member of the arrestin fold superfamily with important cellular functions, including cellular transport, mitochondrial energy generation, and protein cycling. It is the only arrestin-domain protein known to covalently bind to thioredoxin and plays roles in glucose metabolism, inflammation, apoptosis, and cancer. Recent Advances: The crystal structure of the TXNIP-thioredoxin complex provided details about this fascinating interaction. Recent studies showed that TXNIP is induced by endoplasmic reticulum (ER) stress, activates NLR family pyrin domain containing 3 (NLRP3) inflammasomes, and can regulate glucose transport into cells. The tumor suppressor role of TXNIP in various cancer types and the role of TXNIP in fructose absorption are now described. Critical Issues: The influence of TXNIP on redox state is more complex than its interaction with thioredoxin. Future Directions: It is incompletely understood which functions of TXNIP are thioredoxin-dependent. It is also unclear whether TXNIP binding can inhibit glucose transporters without endocytosis. TXNIP-regulated control of ER stress should also be investigated further. Antioxid. Redox Signal. 38, 442-460.
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Affiliation(s)
- Sezin Dagdeviren
- Department of Stem Cell and Regenerative Biology and the Harvard Stem Cell Institute, Harvard University, Cambridge, Massachusetts, USA
| | - Richard T. Lee
- Department of Stem Cell and Regenerative Biology and the Harvard Stem Cell Institute, Harvard University, Cambridge, Massachusetts, USA
| | - Ning Wu
- Van Andel Institute, Grand Rapids, Michigan, USA
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Qian S, Wei Z, Yang W, Huang J, Yang Y, Wang J. The role of BCL-2 family proteins in regulating apoptosis and cancer therapy. Front Oncol 2022; 12:985363. [PMID: 36313628 PMCID: PMC9597512 DOI: 10.3389/fonc.2022.985363] [Citation(s) in RCA: 141] [Impact Index Per Article: 70.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Accepted: 09/22/2022] [Indexed: 11/27/2022] Open
Abstract
Apoptosis, as a very important biological process, is a response to developmental cues or cellular stress. Impaired apoptosis plays a central role in the development of cancer and also reduces the efficacy of traditional cytotoxic therapies. Members of the B-cell lymphoma 2 (BCL-2) protein family have pro- or anti-apoptotic activities and have been studied intensively over the past decade for their importance in regulating apoptosis, tumorigenesis, and cellular responses to anticancer therapy. Since the inflammatory response induced by apoptosis-induced cell death is very small, at present, the development of anticancer drugs targeting apoptosis has attracted more and more attention. Consequently, the focus of this review is to summarize the current research on the role of BCL-2 family proteins in regulating apoptosis and the development of drugs targeting BCL-2 anti-apoptotic proteins. Additionally, the mechanism of BCL-2 family proteins in regulating apoptosis was also explored. All the findings indicate the potential of BCL-2 family proteins in the therapy of cancer.
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Affiliation(s)
- Shanna Qian
- School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Zhong Wei
- Gastrointestinal Surgery, Anhui Provincial Hospital, Hefei, China
| | - Wanting Yang
- School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Jinling Huang
- School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Yinfeng Yang
- School of Medical Informatics Engineering, Anhui University of Chinese Medicine, Hefei, China
| | - Jinghui Wang
- School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, China
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Yu W, Chen C, Zhuang W, Wang W, Liu W, Zhao H, Lv J, Xie D, Wang Q, He F, Xu C, Chen B, Yamamoto T, Koyama H, Cheng J. Silencing TXNIP ameliorates high uric acid-induced insulin resistance via the IRS2/AKT and Nrf2/HO-1 pathways in macrophages. Free Radic Biol Med 2022; 178:42-53. [PMID: 34848368 DOI: 10.1016/j.freeradbiomed.2021.11.034] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 11/22/2021] [Accepted: 11/24/2021] [Indexed: 02/08/2023]
Abstract
Insulin resistance (IR) promotes atherosclerosis and increases the risk of diabetes and cardiovascular diseases. Our previous studies have demonstrated that high uric acid (HUA) increased oxidative stress, leading to IR in cardiomyocytes and pancreatic β cells. However, whether HUA can induce IR in monocytes/macrophages, which play critical roles in all stages of atherosclerosis, is unclear. Recent findings revealed that thioredoxin-interacting protein (TXNIP) negatively regulates insulin signaling; however, the roles and mechanisms of TXNIP in HUA-induced IR remain unclear. Therefore, in this study, we investigated the function of TXNIP in macrophages treated with UA. Transcriptomic profiling revealed TXNIP as one of the most upregulated genes, and subsequent RT-PCR and Western blot analyses confirmed that TXNIP was upregulated by HUA. HUA treatment significantly increased mitochondrial reactive oxygen species (MtROS) levels and decreased insulin-stimulated glucose uptake. Silencing TXNIP by RNA interference significantly diminished HUA-induced oxidative stress and IR. Mechanistically, silencing TXNIP reversed the inhibition of the phosphorylation of insulin receptor substrate 2 (IRS2)/protein kinase B (AKT) pathway induced by HUA. Additional study revealed that HUA induced the activation of the nuclear factor erythroid 2-related factor 2 (Nrf2)/heme oxygenase 1 (HO-1) signaling pathway, but silencing TXNIP abolished it. Moreover, Nrf2 inhibitor (ML385) ameliorated HUA-induced IR independent of IRS2/AKT signaling. Probenecid, a well-known UA-lowering drug, significantly suppressed the activation of TXNIP and Nrf2/HO-1 signaling. Furthermore, RNA-seq revealed that activation of the TXNIP-related redox pathway may be a key regulator in patients with asymptomatic hyperuricemia. These data suggest that silencing TXNIP could ameliorate HUA-induced IR via the IRS2/AKT and Nrf2/HO-1 pathways in macrophages. Additionally, TXNIP might be a promising therapeutic target for preventing and treating oxidative stress and IR induced by HUA.
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Affiliation(s)
- Wei Yu
- Department of Internal Medicine, Xiang'an Hospital of Xiamen University, School of Medicine Xiamen University, Xiamen, China
| | - Chunjuan Chen
- Department of Cardiology, The Second Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Wanling Zhuang
- Department of Hematology, The First Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Wei Wang
- Department of Internal Medicine, Xiang'an Hospital of Xiamen University, School of Medicine Xiamen University, Xiamen, China
| | - Weidong Liu
- Department of Internal Medicine, Xiang'an Hospital of Xiamen University, School of Medicine Xiamen University, Xiamen, China
| | - Hairong Zhao
- Department of Internal Medicine, Xiang'an Hospital of Xiamen University, School of Medicine Xiamen University, Xiamen, China
| | - Jiaming Lv
- Department of Internal Medicine, Xiang'an Hospital of Xiamen University, School of Medicine Xiamen University, Xiamen, China
| | - De Xie
- Department of Internal Medicine, Xiang'an Hospital of Xiamen University, School of Medicine Xiamen University, Xiamen, China
| | - Qiang Wang
- Department of Internal Medicine, Xiang'an Hospital of Xiamen University, School of Medicine Xiamen University, Xiamen, China
| | - Furong He
- Department of Internal Medicine, Xiang'an Hospital of Xiamen University, School of Medicine Xiamen University, Xiamen, China
| | - Chenxi Xu
- Department of Internal Medicine, Xiang'an Hospital of Xiamen University, School of Medicine Xiamen University, Xiamen, China
| | - Bingyang Chen
- Department of Internal Medicine, Xiang'an Hospital of Xiamen University, School of Medicine Xiamen University, Xiamen, China
| | - Tetsuya Yamamoto
- Department of Diabetes, Endocrinology and Clinical Immunology, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan
| | - Hidenori Koyama
- Department of Diabetes, Endocrinology and Clinical Immunology, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan
| | - Jidong Cheng
- Department of Internal Medicine, Xiang'an Hospital of Xiamen University, School of Medicine Xiamen University, Xiamen, China
- Department of Diabetes, Endocrinology and Clinical Immunology, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan
- Xiamen Key Laboratory of Translational Medicine for Nucleic Acid Metabolism and Regulation, Xiamen, Fujian, China
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Fan K, Ruan X, Wang L, Lu W, Shi Q, Xu Y. Circ_0004872 promotes platelet-derived growth factor-BB-induced proliferation, migration and dedifferentiation in HA-VSMCs via miR-513a-5p/TXNIP axis. Vascul Pharmacol 2021; 140:106842. [PMID: 33592319 DOI: 10.1016/j.vph.2021.106842] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 01/21/2021] [Accepted: 02/08/2021] [Indexed: 01/22/2023]
Abstract
The proliferation, migration and dedifferentiation of vascular smooth muscle cells (VSMCs) exert crucial roles in atherosclerosis (AS) progression. The aim of our study was to explore the influences of circular RNA 0004872 (circ_0004872) in platelet-derived growth factor-BB (PDGF-BB)-induced AS cell model and investigate the underlying mechanisms. Real-time quantitative polymerase chain reaction (RT-qPCR) was implemented for the expression detection of circ_0004872, mitogen-activated protein kinase 1 (MAPK1) messenger RNA (mRNA), microRNA-513a-5p (miR-513a-5p) and thioredoxin interacting protein (TXNIP). Cell proliferation was analyzed via Cell Counting Kit 8 (CCK8) assay. Cell migration was assessed via wound healing assay and transwell migration assay. Western blot assay was used to measure the expression of alpha smooth muscle actin (α-SMA), osteopontin (OPN), calponin and TXNIP. Dual-luciferase reporter assay and RNA-pull down assay were used for confirmation of interaction between miR-513a-5p and circ_0004872 or TXNIP. Circ_0004872 expression was elevated in PDGF-BB-induced human aortic vascular smooth muscle cells (HA-VSMCs) and carotid plaque tissues. Circ_0004872 silencing alleviated PDGF-BB-induced proliferation, migration and dedifferentiation in HA-VSMCs. MiR-513a-5p bound to circ_0004872, and circ_0004872 knockdown-induced effects in PDGF-BB-treated HA-VSMCs were largely attenuated by the silencing of miR-513a-5p. MiR-513a-5p bound to the 3' untranslated region (3'UTR) of TXNIP, and miR-513a-5p overexpression-mediated effects were counteracted by the transfection of pcDNA-TXNIP in PDGF-BB-induced HA-VSMCs. TXNIP was modulated by circ_0004872/miR-513a-5p signaling cascade in HA-VSMCs. Circ_0004872 accelerated PDGF-BB-induced proliferation, migration and dedifferentiation in HA-VSMCs through enhancing TXNIP level via sponging miR-513a-5p.
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Affiliation(s)
- Kaikai Fan
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China.
| | - Xinhua Ruan
- Department of Cardiovascular Surgery, Tianjin Union Medical Center, Tianjin, China
| | - Leilei Wang
- Department of Neurosurgery, Cangzhou Central Hospital, Cangzhou, Hebei, China
| | - Wanli Lu
- Department of Cardiovascular Surgery, TEDA International Cardiovascular Hospitale, Tianjin, China
| | - Qiangwei Shi
- Department of Cardiovascular Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Yawei Xu
- Department of Cardiovascular Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
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Shateri H, Manafi B, Tayebinia H, Karimi J, Khodadadi I. Imbalance in thioredoxin system activates NLRP3 inflammasome pathway in epicardial adipose tissue of patients with coronary artery disease. Mol Biol Rep 2021; 48:1181-1191. [PMID: 33566225 DOI: 10.1007/s11033-021-06208-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 01/29/2021] [Indexed: 10/22/2022]
Abstract
Atherosclerosis is the leading cause of death worldwide and has in part an inflammatory basis. Since epicardial adipose tissue (EAT) is in close contact with coronary arteries we hypothesized that an imbalance in thioredoxin-1 (TRX-1) and thioredoxin interacting protein (TXNIP) in EAT, activates NLRP3 inflammasome and promotes production of IL-1β, leading to the development of atherosclerosis. Thirty-eight patients with coronary artery disease (CAD) and thirty patients with no clinical signs of atherosclerosis who underwent open-heart surgery for valve replacement were classified as CAD and control groups, respectively. Biopsy samples from EAT were collected and expression of TXNIP, TRX-1, NLRP3 and IL-1β genes were assessed using qRT-PCR. Tissue protein levels of TXNIP and TRX-1 were determined by Western blotting while ELISA was applied to measure IL-1β. Haematoxylin and eosin staining was used for histological examination. mRNA and protein levels of TXNIP in EAT were significantly higher in patients with CAD compared with control group, whereas CAD patients showed lower TRX-1 gene and protein expression. In addition, in CAD patients the NLRP3 gene expression was almost doubled and IL-1β significantly increased at the both mRNA and protein levels. Enhancment in NLRP3 gene expression and TXNIP protein levels were accompanied with the increase in IL-1β protein level whereas TRX-1 protein content showed a negative correlation with IL-1β level. Concurrent increase in TXNIP, NLRP3, and IL-1β suggests possible involvement of thioredoxin system in the activation of NLRP3 inflammasome, production of IL-1β, and the presence of inflammation in CAD patients.
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Affiliation(s)
- Hossein Shateri
- Department of Clinical Biochemistry, Faculty of Medicine, Hamadan University of Medical Sciences, Shahid Fahmideh Street, Hamadan, Iran
| | - Babak Manafi
- Department of Surgery, Faculty of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Heidar Tayebinia
- Department of Clinical Biochemistry, Faculty of Medicine, Hamadan University of Medical Sciences, Shahid Fahmideh Street, Hamadan, Iran
| | - Jamshid Karimi
- Department of Clinical Biochemistry, Faculty of Medicine, Hamadan University of Medical Sciences, Shahid Fahmideh Street, Hamadan, Iran
| | - Iraj Khodadadi
- Department of Clinical Biochemistry, Faculty of Medicine, Hamadan University of Medical Sciences, Shahid Fahmideh Street, Hamadan, Iran.
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Giroud S, Habold C, Nespolo RF, Mejías C, Terrien J, Logan SM, Henning RH, Storey KB. The Torpid State: Recent Advances in Metabolic Adaptations and Protective Mechanisms †. Front Physiol 2021; 11:623665. [PMID: 33551846 PMCID: PMC7854925 DOI: 10.3389/fphys.2020.623665] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 12/21/2020] [Indexed: 12/18/2022] Open
Abstract
Torpor and hibernation are powerful strategies enabling animals to survive periods of low resource availability. The state of torpor results from an active and drastic reduction of an individual's metabolic rate (MR) associated with a relatively pronounced decrease in body temperature. To date, several forms of torpor have been described in all three mammalian subclasses, i.e., monotremes, marsupials, and placentals, as well as in a few avian orders. This review highlights some of the characteristics, from the whole organism down to cellular and molecular aspects, associated with the torpor phenotype. The first part of this review focuses on the specific metabolic adaptations of torpor, as it is used by many species from temperate zones. This notably includes the endocrine changes involved in fat- and food-storing hibernating species, explaining biomedical implications of MR depression. We further compare adaptive mechanisms occurring in opportunistic vs. seasonal heterotherms, such as tropical and sub-tropical species. Such comparisons bring new insights into the metabolic origins of hibernation among tropical species, including resistance mechanisms to oxidative stress. The second section of this review emphasizes the mechanisms enabling heterotherms to protect their key organs against potential threats, such as reactive oxygen species, associated with the torpid state. We notably address the mechanisms of cellular rehabilitation and protection during torpor and hibernation, with an emphasis on the brain, a central organ requiring protection during torpor and recovery. Also, a special focus is given to the role of an ubiquitous and readily-diffusing molecule, hydrogen sulfide (H2S), in protecting against ischemia-reperfusion damage in various organs over the torpor-arousal cycle and during the torpid state. We conclude that (i) the flexibility of torpor use as an adaptive strategy enables different heterothermic species to substantially suppress their energy needs during periods of severely reduced food availability, (ii) the torpor phenotype implies marked metabolic adaptations from the whole organism down to cellular and molecular levels, and (iii) the torpid state is associated with highly efficient rehabilitation and protective mechanisms ensuring the continuity of proper bodily functions. Comparison of mechanisms in monotremes and marsupials is warranted for understanding the origin and evolution of mammalian torpor.
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Affiliation(s)
- Sylvain Giroud
- Research Institute of Wildlife Ecology, Department of Interdisciplinary Life Sciences, University of Veterinary Medicine, Vienna, Austria
| | - Caroline Habold
- University of Strasbourg, CNRS, IPHC, UMR 7178, Strasbourg, France
| | - Roberto F. Nespolo
- Instituto de Ciencias Ambientales y Evolutivas, Universidad Austral de Chile, ANID – Millennium Science Initiative Program-iBio, Valdivia, Chile
- Center of Applied Ecology and Sustainability, Departamento de Ecología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Carlos Mejías
- Instituto de Ciencias Ambientales y Evolutivas, Universidad Austral de Chile, ANID – Millennium Science Initiative Program-iBio, Valdivia, Chile
- Center of Applied Ecology and Sustainability, Departamento de Ecología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Jérémy Terrien
- Unité Mécanismes Adaptatifs et Evolution (MECADEV), UMR 7179, CNRS, Muséum National d’Histoire Naturelle, Brunoy, France
| | | | - Robert H. Henning
- Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen, Groningen, Netherlands
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10
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Zaobornyj T, Mazo T, Perez V, Gomez A, Contin M, Tripodi V, D'Annunzio V, Gelpi RJ. Thioredoxin-1 is required for the cardioprotecive effect of sildenafil against ischaemia/reperfusion injury and mitochondrial dysfunction in mice. Free Radic Res 2019; 53:993-1004. [PMID: 31455116 DOI: 10.1080/10715762.2019.1661404] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Sildenafil is a phosphodiesterase type 5 inhibitor which confers cardioprotection against myocardial ischaemia/reperfusion (I/R) injury. The aim of this study was to determine if Trx1 participates in cardioprotection exerted by sildenafil in an acute model of I/R, and to evaluate mitochondrial bioenergetics and cellular redox status. Langendorff-perfused hearts from wild type (WT) mice and a dominant negative (DN-Trx1) mutant of Trx1 were assigned to placebo or sildenafil (0.7 mg/kg i.p.) and subjected to 30 min of ischaemia followed by 120 min of reperfusion. WT + S showed a significant reduction of infarct size (51.2 ± 3.0% vs. 30 ± 3.0%, p < .001), an effect not observed in DN-Trx. After I/R, sildenafil preserved state 3 oxygen consumption from WT, but had a milder effect in DN-Trx1 only partially protecting state 3 values. Treatment restored respiratory control (RC) after I/R, which resulted 8% (WT) and 24% (DN-Trx1) lower than in basal conditions. After I/R, a significant increase in H2O2 production was observed both for WT and DN-Trx (WT: 1.17 ± 0.13 nmol/mg protein and DN-Trx: 1.38 ± 0.12 nmol/min mg protein). With sildenafil, values were 21% lower only in WT I/R. Treatment decreased GSSG levels both in WT and DN-Trx1. In addition, GSSG/GSH2 ratio was partially restored by sildenafil. Also, an increase in p-eNOS/eNOS even before the myocardial ischaemia was observed with sildenafil, both in WT (14%, p > .05) and in DN-Trx (35%, p < .05). Active Trx1 is required for the onset of the cardioprotective effects of sildenafil on I/R injury, together with the preservation of cellular redox balance and mitochondrial function.
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Affiliation(s)
- Tamara Zaobornyj
- Department of Analytical Chemistry and Physical Chemistry, School of Pharmacy and Biochemistry, University of Buenos Aires , Buenos Aires , Argentina.,Institute of Biochemistry and Molecular Medicine (IBIMOL UBA-CONICET) , Buenos Aires , Argentina.,National Council of Scientific and Technical Research (CONICET) , Buenos Aires , Argentina
| | - Tamara Mazo
- Institute of Biochemistry and Molecular Medicine (IBIMOL UBA-CONICET) , Buenos Aires , Argentina
| | - Virginia Perez
- Institute of Biochemistry and Molecular Medicine (IBIMOL UBA-CONICET) , Buenos Aires , Argentina.,Department of Pathology, Faculty of Medicine, Institute of Cardiovascular Physiopathology, University of Buenos Aires , Buenos Aires , Argentina
| | - Anabella Gomez
- Institute of Biochemistry and Molecular Medicine (IBIMOL UBA-CONICET) , Buenos Aires , Argentina.,Department of Pathology, Faculty of Medicine, Institute of Cardiovascular Physiopathology, University of Buenos Aires , Buenos Aires , Argentina
| | - Mario Contin
- Department of Analytical Chemistry and Physical Chemistry, School of Pharmacy and Biochemistry, University of Buenos Aires , Buenos Aires , Argentina
| | - Valeria Tripodi
- National Council of Scientific and Technical Research (CONICET) , Buenos Aires , Argentina.,Department of Pharmaceutical Technology, School of Pharmacy and Biochemistry, University of Buenos Aires , Buenos Aires , Argentina
| | - Verónica D'Annunzio
- Institute of Biochemistry and Molecular Medicine (IBIMOL UBA-CONICET) , Buenos Aires , Argentina.,National Council of Scientific and Technical Research (CONICET) , Buenos Aires , Argentina.,Department of Pathology, Faculty of Medicine, Institute of Cardiovascular Physiopathology, University of Buenos Aires , Buenos Aires , Argentina
| | - Ricardo J Gelpi
- Institute of Biochemistry and Molecular Medicine (IBIMOL UBA-CONICET) , Buenos Aires , Argentina.,National Council of Scientific and Technical Research (CONICET) , Buenos Aires , Argentina.,Department of Pathology, Faculty of Medicine, Institute of Cardiovascular Physiopathology, University of Buenos Aires , Buenos Aires , Argentina
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11
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Neidhardt S, Garbade J, Emrich F, Klaeske K, Borger MA, Lehmann S, Jawad K, Dieterlen MT. Ischemic Cardiomyopathy Affects the Thioredoxin System in the Human Myocardium. J Card Fail 2019; 25:204-212. [PMID: 30721734 DOI: 10.1016/j.cardfail.2019.01.017] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 12/03/2018] [Accepted: 01/23/2019] [Indexed: 12/17/2022]
Abstract
BACKGROUND Oxidative stress due to reactive oxygen species (ROS) production is a key factor in the development of heart failure (HF). This study investigated the thioredoxin (Trx) system, which plays a major role in antioxidant defense, in patients suffering from ischemic (ICM) or dilated (DCM) cardiomyopathy. METHODS AND RESULTS Myocardial tissue from ICM (n = 13) and DCM (n = 13) patients, as well as septal tissue of patients with aortic stenosis but without diagnosed hypertrophic cardiomyopathy or subaortic stenosis (control; n = 12), was analyzed for Trx1, Trx-interacting protein (TXNIP) and E3 ligase ITCH (E3 ubiquitin-protein ligase Itchy homolog) expression. Trx-reductase 1 (TXNRD1) amount and activity, cytosolic cytochrome C content, and apoptosis markers were quantified by means of enzyme-linked immunosorbent assay and multiplexing. Compared with control samples, ITCH and Trx1 expression, TXNRD1 amount and activity were reduced and TXNIP expression was increased in ICM (ITCH: P = .013; Trx1: P = .028; TXNRD1 amount: P = .035; TXNRD1 activity: P = .005; TXNIP: P = .014) but not in DCM samples. A higher level of the downstream apoptosis marker caspase-9 (ICM: 582 ± 262 MFI [P = .995]; DCM: 1251 ± 548 MFI [P = .002], control: 561 ± 214 MFI) was detected in DCM tissue. A higher expression of Bcl-2 was found in DCM (P = .011). CONCLUSION The Trx system was impaired in ICM but not in DCM. ITCH appeared to be responsible for the down-regulation of the Trx system. ROS-induced mitochondrial instability appeared to play a role in DCM.
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Affiliation(s)
- Stephan Neidhardt
- Department of Cardiac Surgery, University of Leipzig, Heart Center Leipzig, Helios Clinic, Leipzig, Germany
| | - Jens Garbade
- Department of Cardiac Surgery, University of Leipzig, Heart Center Leipzig, Helios Clinic, Leipzig, Germany
| | - Fabian Emrich
- Department of Cardiac Surgery, University of Leipzig, Heart Center Leipzig, Helios Clinic, Leipzig, Germany
| | - Kristin Klaeske
- Department of Cardiac Surgery, University of Leipzig, Heart Center Leipzig, Helios Clinic, Leipzig, Germany
| | - Michael A Borger
- Department of Cardiac Surgery, University of Leipzig, Heart Center Leipzig, Helios Clinic, Leipzig, Germany
| | - Sven Lehmann
- Department of Cardiac Surgery, University of Leipzig, Heart Center Leipzig, Helios Clinic, Leipzig, Germany
| | - Khalil Jawad
- Department of Cardiac Surgery, University of Leipzig, Heart Center Leipzig, Helios Clinic, Leipzig, Germany
| | - Maja-Theresa Dieterlen
- Department of Cardiac Surgery, University of Leipzig, Heart Center Leipzig, Helios Clinic, Leipzig, Germany.
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12
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Nespolo RF, Gaitan-Espitia JD, Quintero-Galvis JF, Fernandez FV, Silva AX, Molina C, Storey KB, Bozinovic F. A functional transcriptomic analysis in the relict marsupial Dromiciops gliroides
reveals adaptive regulation of protective functions during hibernation. Mol Ecol 2018; 27:4489-4500. [DOI: 10.1111/mec.14876] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 09/05/2018] [Accepted: 09/07/2018] [Indexed: 12/20/2022]
Affiliation(s)
- Roberto F. Nespolo
- Instituto de Ciencias Ambientales y Evolutivas; Facultad de Ciencias; Universidad Austral de Chile; Valdivia Chile
- Departamento de Ecología; Center of Applied Ecology and Sustainability (CAPES); Facultad de Ciencias Biológicas; Pontificia Universidad Católica de Chile; Santiago Chile
- Millennium Institute for Integrative Biology (iBio); Santiago Chile
| | - Juan Diego Gaitan-Espitia
- The Swire Institute of Marine Science and School of Biological Sciences; The University of Hong Kong; Hong Kong SAR China
- CSIRO Oceans & Atmosphere; Hobart Tasmania Australia
| | - Julian F. Quintero-Galvis
- Instituto de Ciencias Ambientales y Evolutivas; Facultad de Ciencias; Universidad Austral de Chile; Valdivia Chile
| | - Fernanda V. Fernandez
- Instituto de Fisiología; Facultad de Medicina; Universidad Austral de Chile; Valdivia Chile
| | - Andrea X. Silva
- AUSTRALomics, Vicerrectoría de Investigación, Desarrollo y Creación Artística; Universidad Austral de Chile; Valdivia Chile
| | - Cristian Molina
- AUSTRALomics, Vicerrectoría de Investigación, Desarrollo y Creación Artística; Universidad Austral de Chile; Valdivia Chile
| | - Kenneth B. Storey
- Department of Biology and Institute of Biochemistry; Carleton University; Ottawa Ontario Canada
| | - Francisco Bozinovic
- Departamento de Ecología; Center of Applied Ecology and Sustainability (CAPES); Facultad de Ciencias Biológicas; Pontificia Universidad Católica de Chile; Santiago Chile
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13
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Randhawa PK, Bali A, Virdi JK, Jaggi AS. Conditioning-induced cardioprotection: Aging as a confounding factor. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY : OFFICIAL JOURNAL OF THE KOREAN PHYSIOLOGICAL SOCIETY AND THE KOREAN SOCIETY OF PHARMACOLOGY 2018; 22:467-479. [PMID: 30181694 PMCID: PMC6115349 DOI: 10.4196/kjpp.2018.22.5.467] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 03/28/2018] [Accepted: 05/15/2018] [Indexed: 01/15/2023]
Abstract
The aging process induces a plethora of changes in the body including alterations in hormonal regulation and metabolism in various organs including the heart. Aging is associated with marked increase in the vulnerability of the heart to ischemia-reperfusion injury. Furthermore, it significantly hampers the development of adaptive response to various forms of conditioning stimuli (pre/post/remote conditioning). Aging significantly impairs the activation of signaling pathways that mediate preconditioning-induced cardioprotection. It possibly impairs the uptake and release of adenosine, decreases the number of adenosine transporter sites and down-regulates the transcription of adenosine receptors in the myocardium to attenuate adenosine-mediated cardioprotection. Furthermore, aging decreases the expression of peroxisome proliferator-activated receptor gamma co-activator 1-alpha (PGC-1α) and subsequent transcription of catalase enzyme which subsequently increases the oxidative stress and decreases the responsiveness to preconditioning stimuli in the senescent diabetic hearts. In addition, in the aged rat hearts, the conditioning stimulus fails to phosphorylate Akt kinase that is required for mediating cardioprotective signaling in the heart. Moreover, aging increases the concentration of Na+ and K+, connexin expression and caveolin abundance in the myocardium and increases the susceptibility to ischemia-reperfusion injury. In addition, aging also reduces the responsiveness to conditioning stimuli possibly due to reduced kinase signaling and reduced STAT-3 phosphorylation. However, aging is associated with an increase in MKP-1 phosphorylation, which dephosphorylates (deactivates) mitogen activated protein kinase that is involved in cardioprotective signaling. The present review describes aging as one of the major confounding factors in attenuating remote ischemic preconditioning-induced cardioprotection along with the possible mechanisms.
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Affiliation(s)
- Puneet Kaur Randhawa
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala 147002, India
| | - Anjana Bali
- Akal College of Pharmacy and Technical Education, Mastuana Sahib, Sangrur 148002, India
| | - Jasleen Kaur Virdi
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala 147002, India
| | - Amteshwar Singh Jaggi
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala 147002, India
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14
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Rocca C, Boukhzar L, Granieri MC, Alsharif I, Mazza R, Lefranc B, Tota B, Leprince J, Cerra MC, Anouar Y, Angelone T. A selenoprotein T-derived peptide protects the heart against ischaemia/reperfusion injury through inhibition of apoptosis and oxidative stress. Acta Physiol (Oxf) 2018; 223:e13067. [PMID: 29575758 DOI: 10.1111/apha.13067] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Revised: 03/13/2018] [Accepted: 03/19/2018] [Indexed: 12/13/2022]
Abstract
AIM Selenoprotein T (SelT or SELENOT) is a novel thioredoxin-like enzyme whose genetic ablation in mice results in early embryonic lethality. SelT exerts an essential cytoprotective action during development and after injury through its redox-active catalytic site. This study aimed to determine the expression and regulation of SelT in the mammalian heart in normal and pathological conditions and to evaluate the cardioprotective effect of a SelT-derived peptide, SelT43-52(PSELT) encompassing the redox motif which is key to its function, against ischaemia/reperfusion(I/R) injury. METHODS We used the isolated Langendorff rat heart model and different analyses by immunohistochemistry, Western blot and ELISA. RESULTS We found that SelT expression is very abundant in embryo but is undetectable in adult heart. However, SelT expression was tremendously increased after I/R. PSELT (5 nmol/L) was able to induce pharmacological post-conditioning cardioprotection as evidenced by a significant recovery of contractility (dLVP) and reduction of infarct size (IS), without changes in cardiac contracture (LVEDP). In contrast, a control peptide lacking the redox site did not confer cardioprotection. Immunoblot analysis showed that PSELT-dependent cardioprotection is accompanied by a significant increase in phosphorylated Akt, Erk-1/2 and Gsk3α-β, and a decrement of p38MAPK. PSELT inhibited the pro-apoptotic factors Bax, caspase 3 and cytochrome c and stimulated the anti-apoptotic factor Bcl-2. Furthermore, PSELT significantly reduced several markers of I/R-induced oxidative and nitrosative stress. CONCLUSION These results unravel the role of SelT as a cardiac modulator and identify PSELT as an effective pharmacological post-conditioning agent able to protect the heart after ischaemic injury.
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Affiliation(s)
- C. Rocca
- Laboratory of Cellular and Molecular Cardiovascular Physiology; Department of Biology, Ecology and E.S.; University of Calabria; Rende Italy
- Laboratoire de Différenciation et Communication Neuronale et Neuroendocrine; Institut de Recherche et d'Innovation Biomédicale de Normandie and Centre Universitaire de Recherche et D'Innovation en Biologie; Normandie University, UNIROUEN, INSERM; Rouen France
| | - L. Boukhzar
- Laboratoire de Différenciation et Communication Neuronale et Neuroendocrine; Institut de Recherche et d'Innovation Biomédicale de Normandie and Centre Universitaire de Recherche et D'Innovation en Biologie; Normandie University, UNIROUEN, INSERM; Rouen France
| | - M. C. Granieri
- Laboratory of Cellular and Molecular Cardiovascular Physiology; Department of Biology, Ecology and E.S.; University of Calabria; Rende Italy
| | - I. Alsharif
- Laboratoire de Différenciation et Communication Neuronale et Neuroendocrine; Institut de Recherche et d'Innovation Biomédicale de Normandie and Centre Universitaire de Recherche et D'Innovation en Biologie; Normandie University, UNIROUEN, INSERM; Rouen France
| | - R. Mazza
- Laboratory of Cellular and Molecular Cardiovascular Physiology; Department of Biology, Ecology and E.S.; University of Calabria; Rende Italy
| | - B. Lefranc
- Laboratoire de Différenciation et Communication Neuronale et Neuroendocrine; Institut de Recherche et d'Innovation Biomédicale de Normandie and Centre Universitaire de Recherche et D'Innovation en Biologie; Normandie University, UNIROUEN, INSERM; Rouen France
| | - B. Tota
- Laboratory of Cellular and Molecular Cardiovascular Physiology; Department of Biology, Ecology and E.S.; University of Calabria; Rende Italy
- National Institute of Cardiovascular Research (INRC); Bologna Italy
| | - J. Leprince
- Laboratoire de Différenciation et Communication Neuronale et Neuroendocrine; Institut de Recherche et d'Innovation Biomédicale de Normandie and Centre Universitaire de Recherche et D'Innovation en Biologie; Normandie University, UNIROUEN, INSERM; Rouen France
| | - M. C. Cerra
- Laboratory of Cellular and Molecular Cardiovascular Physiology; Department of Biology, Ecology and E.S.; University of Calabria; Rende Italy
- National Institute of Cardiovascular Research (INRC); Bologna Italy
| | - Y. Anouar
- Laboratoire de Différenciation et Communication Neuronale et Neuroendocrine; Institut de Recherche et d'Innovation Biomédicale de Normandie and Centre Universitaire de Recherche et D'Innovation en Biologie; Normandie University, UNIROUEN, INSERM; Rouen France
| | - T. Angelone
- Laboratory of Cellular and Molecular Cardiovascular Physiology; Department of Biology, Ecology and E.S.; University of Calabria; Rende Italy
- National Institute of Cardiovascular Research (INRC); Bologna Italy
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15
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Mains RE, Blaby-Haas C, Rheaume BA, Eipper BA. Changes in Corticotrope Gene Expression Upon Increased Expression of Peptidylglycine α-Amidating Monooxygenase. Endocrinology 2018; 159:2621-2639. [PMID: 29788427 PMCID: PMC6287594 DOI: 10.1210/en.2018-00235] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Accepted: 05/09/2018] [Indexed: 11/19/2022]
Abstract
Throughout evolution, secretion has played an essential role in the ability of organisms and single cells to survive in the face of a changing environment. Peptidylglycine α-amidating monooxygenase (PAM) is an integral membrane monooxygenase, first identified for its role in the biosynthesis of neuroendocrine peptides released by the regulated secretory pathway. PAM was subsequently identified in Chlamydomonas reinhardtii, a unicellular green alga, where it plays an essential role in constitutive secretion and in ciliogenesis. Reduced expression of C. reinhardtii PAM resulted in significant changes in secretion and ciliogenesis. Hence, a screen was performed for transcripts and proteins whose expression responded to changes in PAM levels in a mammalian corticotrope tumor cell line. The goal was to identify genes not previously known to play a role in secretion. The screen identified transcription factors, peptidyl prolyl isomerases, endosomal/lysosomal proteins, and proteins involved in tissue-specific responses to glucose and amino acid availability that had not previously been recognized as relevant to the secretory pathway. Perhaps reflecting the dependence of PAM on molecular oxygen, many PAM-responsive genes are known to be hypoxia responsive. The data highlight the extent to which the performance of the secretory pathway may be integrated into a wide diversity of signaling pathways.
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Affiliation(s)
- Richard E Mains
- Neuroscience, University of Connecticut Health Center, Farmington,
Connecticut
- Correspondence: Richard E. Mains, PhD, University of Connecticut Health Center, 263 Farmington
Avenue, Farmington, Connecticut 06030. E-mail:
| | | | - Bruce A Rheaume
- Neuroscience, University of Connecticut Health Center, Farmington,
Connecticut
| | - Betty A Eipper
- Neuroscience, University of Connecticut Health Center, Farmington,
Connecticut
- Molecular Biology & Biophysics, University of Connecticut, Farmington,
Connecticut
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16
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Differential Expression of TXNIP Isoforms in the Peripheral Leukocytes of Patients with Acute Myocardial Infarction. DISEASE MARKERS 2018; 2018:9051481. [PMID: 30034557 PMCID: PMC6032985 DOI: 10.1155/2018/9051481] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Revised: 05/06/2018] [Accepted: 05/30/2018] [Indexed: 12/13/2022]
Abstract
Background Acute myocardial infarction (AMI) is the most serious type of coronary atherosclerotic heart disease (CAD). The pathological changes are characterized by atherosclerosis. Oxidative stress plays an important role in atherosclerosis. Thioredoxin-interacting protein (TXNIP), an endogenous inhibitor and regulator of thioredoxin, could bind thioredoxin to regulate its expression and antioxidant activity negatively. The NCBI data show that there are two isoforms in TXNIP gene, namely, TXNIP1 and TXNIP2. Our previous studies have shown that TXNIP expression levels in patients with unstable angina pectoris (UAP) were increased compared with controls (CTR). However, no upregulation of TXNIP was detected in AMI patients. Methods The leucocytes were isolated from peripheral venous blood, and total RNA of the leucocytes was extracted. Then, real-time quantitative PCR was performed. Results mRNA levels of TXNIP2 in AMI were significantly increased compared with CTR (P < 0.05). However, the expression of TXNIP1 was downregulated in AMI, but the difference was not statistically significant (P > 0.05). Logistic regression analysis showed that TXNIP2 mRNA levels were significantly associated with AMI (OR = 2.207, P < 0.05). Conclusions The expression of TXNIP2, not TXNIP1, is upregulated in leukocytes of AMI patients, indicating that only TXNIP2 in circulating leucocytes may be involved in the pathogenesis of AMI.
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17
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Zhang Y, Huang J, Yang X, Sun X, Xu Q, Wang B, Zhong P, Wei Z. Altered Expression of TXNIP in the peripheral leukocytes of patients with coronary atherosclerotic heart disease. Medicine (Baltimore) 2017; 96:e9108. [PMID: 29245343 PMCID: PMC5728958 DOI: 10.1097/md.0000000000009108] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Coronary atherosclerotic heart disease (CAD) is mainly caused by atherosclerosis, an inflammatory disease characterized by plaque formation in arteries. Reactive oxygen species caused structural damage and dysfunction of arterial endothelial cells. Thioredoxin-interacting protein (TXNIP) is the endogenous inhibitor and regulator of thioredoxin, a major cellular antioxidant and antiapoptotic system. In order to explore the role of TXNIP in the occurrence and development of CAD, we detected the TXNIP expression and discussed its molecular mechanisms in CAD. METHODS The mRNA levels of TXNIP gene in peripheral leucocytes were detected in CAD and healthy controls (CTR) by quantitative real-time polymerase chain reaction. And TXNIP proteins were detected by western blotting. RESULTS TXNIP gene expression levels in patients with unstable angina pectoris (UAP, n = 96) were significantly increased compared with those of CTR (n = 192, P < .05). However, the situation is different in acute myocardial infarction (n = 96, P > .05). Logistic regression analysis showed that TXNIP levels were significantly positive correlated with UAP (OR = 1.728, P < .05). CONCLUSIONS TXNIP gene expression in the peripheral leucocytes was increased in patients with UAP, indicating that TXNIP in circulating leucocytes may be involved in the pathogenesis of UAP.
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Affiliation(s)
- Yujing Zhang
- Department of Cardiology, Jining No. 1 People's Hospital
| | - Jian Huang
- Central Laboratory, Affiliated Hospital of Jining Medical University
| | - Xinglin Yang
- Department of Traditional Chinese Medicine, Jining No. 1 People's Hospital, Shandong, China
| | - Xiaofei Sun
- Department of Cardiology, Jining No. 1 People's Hospital
| | - Qincheng Xu
- Department of Cardiology, Jining No. 1 People's Hospital
| | - Baokui Wang
- Department of Cardiology, Jining No. 1 People's Hospital
| | - Peng Zhong
- Department of Cardiology, Jining No. 1 People's Hospital
| | - Zixiu Wei
- Department of Cardiology, Jining No. 1 People's Hospital
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18
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Roberts DD, Kaur S, Isenberg JS. Regulation of Cellular Redox Signaling by Matricellular Proteins in Vascular Biology, Immunology, and Cancer. Antioxid Redox Signal 2017; 27:874-911. [PMID: 28712304 PMCID: PMC5653149 DOI: 10.1089/ars.2017.7140] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 07/11/2017] [Accepted: 07/13/2017] [Indexed: 12/15/2022]
Abstract
SIGNIFICANCE In contrast to structural elements of the extracellular matrix, matricellular proteins appear transiently during development and injury responses, but their sustained expression can contribute to chronic disease. Through interactions with other matrix components and specific cell surface receptors, matricellular proteins regulate multiple signaling pathways, including those mediated by reactive oxygen and nitrogen species and H2S. Dysregulation of matricellular proteins contributes to the pathogenesis of vascular diseases and cancer. Defining the molecular mechanisms and receptors involved is revealing new therapeutic opportunities. Recent Advances: Thrombospondin-1 (TSP1) regulates NO, H2S, and superoxide production and signaling in several cell types. The TSP1 receptor CD47 plays a central role in inhibition of NO signaling, but other TSP1 receptors also modulate redox signaling. The matricellular protein CCN1 engages some of the same receptors to regulate redox signaling, and ADAMTS1 regulates NO signaling in Marfan syndrome. In addition to mediating matricellular protein signaling, redox signaling is emerging as an important pathway that controls the expression of several matricellular proteins. CRITICAL ISSUES Redox signaling remains unexplored for many matricellular proteins. Their interactions with multiple cellular receptors remains an obstacle to defining signaling mechanisms, but improved transgenic models could overcome this barrier. FUTURE DIRECTIONS Therapeutics targeting the TSP1 receptor CD47 may have beneficial effects for treating cardiovascular disease and cancer and have recently entered clinical trials. Biomarkers are needed to assess their effects on redox signaling in patients and to evaluate how these contribute to their therapeutic efficacy and potential side effects. Antioxid. Redox Signal. 27, 874-911.
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Affiliation(s)
- David D. Roberts
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Sukhbir Kaur
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Jeffrey S. Isenberg
- Division of Pulmonary, Allergy and Critical Care, Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
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19
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Yu L, Fan C, Li Z, Zhang J, Xue X, Xu Y, Zhao G, Yang Y, Wang H. Melatonin rescues cardiac thioredoxin system during ischemia-reperfusion injury in acute hyperglycemic state by restoring Notch1/Hes1/Akt signaling in a membrane receptor-dependent manner. J Pineal Res 2017; 62. [PMID: 27753144 DOI: 10.1111/jpi.12375] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 10/14/2016] [Indexed: 01/08/2023]
Abstract
Stress hyperglycemia is commonly observed in patients suffering from ischemic heart disease. It not only worsens cardiovascular prognosis but also attenuates the efficacies of various cardioprotective agents. This study aimed to investigate the protective effect of melatonin against myocardial ischemia-reperfusion (MI/R) injury in acute hyperglycemic state with a focus on Notch1/Hes1/Akt signaling and intracellular thioredoxin (Trx) system. Sprague Dawley rats were subjected to MI/R surgery and high-glucose (HG, 500 g/L) infusion (4 mL/kg/h) to induce temporary hyperglycemia. Rats were treated with or without melatonin (10 mg/kg/d) during the operation. Furthermore, HG (33 mmol/L)-incubated H9c2 cardiomyoblasts were treated in the presence or absence of luzindole (a competitive melatonin receptor antagonist), DAPT (a γ-secretase inhibitor), LY294002 (a PI3-kinase/Akt inhibitor), or thioredoxin-interacting protein (Txnip) adenoviral vectors. We found that acute hyperglycemia aggravated MI/R injury by suppressing Notch1/Hes1/Akt signaling and intracellular Trx activity. Melatonin treatment effectively ameliorated MI/R injury by reducing infarct size, myocardial apoptosis, and oxidative stress. Moreover, melatonin also markedly enhanced Notch1/Hes1/Akt signaling and rescued intracellular Trx system by upregulating Notch1, N1ICD, Hes1, and p-Akt expressions, increasing Trx activity, and downregulating Txnip expression. However, these effects were blunted by luzindole, DAPT, or LY294002. Additionally, Txnip overexpression not only decreased Trx activity, but also attenuated the cytoprotective effect of melatonin. We conclude that impaired Notch1 signaling aggravates MI/R injury in acute hyperglycemic state. Melatonin rescues Trx system by reducing Txnip expression via Notch1/Hes1/Akt signaling in a membrane receptor-dependent manner. Its role as a prophylactic/therapeutic drug deserves further clinical study.
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Affiliation(s)
- Liming Yu
- Department of Cardiovascular Surgery, General Hospital of Shenyang Military Area Command, Shenyang, Liaoning, China
| | - Chongxi Fan
- Department of Thoracic Surgery, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Zhi Li
- Department of Cardiovascular Surgery, General Hospital of Shenyang Military Area Command, Shenyang, Liaoning, China
| | - Jian Zhang
- Department of Cardiovascular Surgery, General Hospital of Shenyang Military Area Command, Shenyang, Liaoning, China
| | - Xiaodong Xue
- Department of Cardiovascular Surgery, General Hospital of Shenyang Military Area Command, Shenyang, Liaoning, China
| | - Yinli Xu
- Department of Cardiovascular Surgery, General Hospital of Shenyang Military Area Command, Shenyang, Liaoning, China
| | - Guolong Zhao
- Department of Cardiovascular Surgery, Northwest Women's and Children's Hospital, Xi'an, Shaanxi, China
| | - Yang Yang
- Department of Biomedical Engineering, The Fourth Military Medical University, Xi'an, China
- Department of Thoracic and Cardiovascular Surgery, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
| | - Huishan Wang
- Department of Cardiovascular Surgery, General Hospital of Shenyang Military Area Command, Shenyang, Liaoning, China
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Wang BF, Yoshioka J. The Emerging Role of Thioredoxin-Interacting Protein in Myocardial Ischemia/Reperfusion Injury. J Cardiovasc Pharmacol Ther 2016; 22:219-229. [PMID: 27807222 DOI: 10.1177/1074248416675731] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Myocardial ischemia/reperfusion injury represents a major threat to human health and contributes to adverse cardiovascular outcomes worldwide. Despite the identification of numerous molecular mechanisms, understanding of the complex pathophysiology of this clinical syndrome remains incomplete. Thioredoxin-interacting protein (Txnip) has been of great interest in the past decade since it has been reported to be a critical regulator in human diseases with several important cellular functions. Thioredoxin-interacting protein binds to and inhibits thioredoxin, a redox protein that neutralizes reactive oxygen species (ROS), and through its interaction with thioredoxin, Txnip sensitizes cardiomyocytes to ROS-induced apoptosis. Interestingly, evidence from recent studies also suggests that some of the effects of Txnip may be unrelated to changes in thioredoxin activity. These pleiotropic effects of Txnip are mediated by interactions with other signaling molecules, such as nod-like receptor pyrin domain-containing 3 inflammasome and glucose transporter 1. Indeed, Txnip has been implicated in the regulation of inflammatory response and glucose homeostasis during myocardial ischemia/reperfusion injury. This review attempts to make the case that in addition to interacting with thioredoxin, Txnip contributes to some of the pathological consequences of myocardial ischemia and infarction through endogenous signals in multiple molecular mechanisms.
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Affiliation(s)
- Bing F Wang
- 1 Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Jun Yoshioka
- 1 Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
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Perez V, D'Annunzio V, Valdez LB, Zaobornyj T, Bombicino S, Mazo T, Carbajosa NL, Gironacci MM, Boveris A, Sadoshima J, Gelpi RJ. Thioredoxin-1 Attenuates Ventricular and Mitochondrial Postischemic Dysfunction in the Stunned Myocardium of Transgenic Mice. Antioxid Redox Signal 2016; 25:78-88. [PMID: 27000416 DOI: 10.1089/ars.2015.6459] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
AIM We evaluated the effect of thioredoxin1 (Trx1) system on postischemic ventricular and mitochondrial dysfunction using transgenic mice overexpressing cardiac Trx1 and a dominant negative (DN-Trx1) mutant (C32S/C35S) of Trx1. Langendorff-perfused hearts were subjected to 15 min of ischemia followed by 30 min of reperfusion (R). We measured left ventricular developed pressure (LVDP, mmHg), left ventricular end diastolic pressure (LVEDP, mmHg), and t63 (relaxation index, msec). Mitochondrial respiration, SERCA2a, phospholamban (PLB), and phospholamban phosphorylation (p-PLB) Thr17 expression (Western blot) were also evaluated. RESULTS At 30 min of reperfusion, Trx1 improved contractile state (LVDP: Trx1: 57.4 ± 4.9 vs. Wt: 27.1 ± 6.3 and DN-Trx1: 29.2 ± 7.1, p < 0.05); decreased myocardial stiffness (LVEDP: Wt: 24.5 ± 4.8 vs. Trx1: 11.8 ± 2.9, p < 0.05); and improved the isovolumic relaxation (t63: Wt: 63.3 ± 3.2 vs. Trx1: 51.4 ± 1.9, p < 0.05). DN-Trx1 mice aggravated the myocardial stiffness and isovolumic relaxation. Only the expression of p-PLB Thr17 increased at 1.5 min R in Wt and DN-Trx1 groups. At 30 min of reperfusion, state 3 mitochondrial O2 consumption was impaired by 13% in Wt and by 33% in DN-Trx1. ADP/O ratios for Wt and DN-Trx1 decrease by 25% and 28%, respectively; whereas the Trx1 does not change after ischemia and reperfusion (I/R). Interestingly, baseline values of complex I activity were increased in Trx1 mice; they were 24% and 47% higher than in Wt and DN-Trx1 mice, respectively (p < 0.01). INNOVATION AND CONCLUSION These results strongly suggest that Trx1 ameliorates the myocardial effects of I/R by improving the free radical-mediated damage in cardiac and mitochondrial function, opening the possibility of new therapeutic strategies in coronary artery disease. Antioxid. Redox Signal. 25, 78-88.
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Affiliation(s)
- Virginia Perez
- 1 Institute of Biochemistry and Molecular Medicine (IBIMOL , UBA-CONICET), Buenos Aires, Argentina .,2 Department of Pathology, Faculty of Medicine, Institute of Cardiovascular Physiopathology, University of Buenos Aires , Buenos Aires, Argentina
| | - Veronica D'Annunzio
- 1 Institute of Biochemistry and Molecular Medicine (IBIMOL , UBA-CONICET), Buenos Aires, Argentina .,2 Department of Pathology, Faculty of Medicine, Institute of Cardiovascular Physiopathology, University of Buenos Aires , Buenos Aires, Argentina
| | - Laura B Valdez
- 1 Institute of Biochemistry and Molecular Medicine (IBIMOL , UBA-CONICET), Buenos Aires, Argentina .,3 School of Pharmacy and Biochemistry, University of Buenos Aires , Buenos Aires, Argentina
| | - Tamara Zaobornyj
- 1 Institute of Biochemistry and Molecular Medicine (IBIMOL , UBA-CONICET), Buenos Aires, Argentina .,3 School of Pharmacy and Biochemistry, University of Buenos Aires , Buenos Aires, Argentina
| | - Silvina Bombicino
- 1 Institute of Biochemistry and Molecular Medicine (IBIMOL , UBA-CONICET), Buenos Aires, Argentina .,3 School of Pharmacy and Biochemistry, University of Buenos Aires , Buenos Aires, Argentina
| | - Tamara Mazo
- 1 Institute of Biochemistry and Molecular Medicine (IBIMOL , UBA-CONICET), Buenos Aires, Argentina .,2 Department of Pathology, Faculty of Medicine, Institute of Cardiovascular Physiopathology, University of Buenos Aires , Buenos Aires, Argentina
| | - Nadia Longo Carbajosa
- 4 Department of Biological Chemistry and IQUIFIB, School of Pharmacy and Biochemistry, University of Buenos Aires , Buenos Aires, Argentina
| | - Mariela M Gironacci
- 4 Department of Biological Chemistry and IQUIFIB, School of Pharmacy and Biochemistry, University of Buenos Aires , Buenos Aires, Argentina
| | - Alberto Boveris
- 1 Institute of Biochemistry and Molecular Medicine (IBIMOL , UBA-CONICET), Buenos Aires, Argentina .,3 School of Pharmacy and Biochemistry, University of Buenos Aires , Buenos Aires, Argentina
| | - Junichi Sadoshima
- 5 Department of Cell Biology and Molecular Medicine, New Jersey Medical School, Rutgers University , Newark, New Jersey
| | - Ricardo J Gelpi
- 1 Institute of Biochemistry and Molecular Medicine (IBIMOL , UBA-CONICET), Buenos Aires, Argentina .,2 Department of Pathology, Faculty of Medicine, Institute of Cardiovascular Physiopathology, University of Buenos Aires , Buenos Aires, Argentina
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22
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Holzerova E, Danhauser K, Haack TB, Kremer LS, Melcher M, Ingold I, Kobayashi S, Terrile C, Wolf P, Schaper J, Mayatepek E, Baertling F, Friedmann Angeli JP, Conrad M, Strom TM, Meitinger T, Prokisch H, Distelmaier F. Human thioredoxin 2 deficiency impairs mitochondrial redox homeostasis and causes early-onset neurodegeneration. ACTA ACUST UNITED AC 2015; 139:346-54. [PMID: 26626369 DOI: 10.1093/brain/awv350] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Accepted: 10/15/2015] [Indexed: 01/01/2023]
Abstract
Thioredoxin 2 (TXN2; also known as Trx2) is a small mitochondrial redox protein essential for the control of mitochondrial reactive oxygen species homeostasis, apoptosis regulation and cell viability. Exome sequencing in a 16-year-old adolescent suffering from an infantile-onset neurodegenerative disorder with severe cerebellar atrophy, epilepsy, dystonia, optic atrophy, and peripheral neuropathy, uncovered a homozygous stop mutation in TXN2. Analysis of patient-derived fibroblasts demonstrated absence of TXN2 protein, increased reactive oxygen species levels, impaired oxidative stress defence and oxidative phosphorylation dysfunction. Reconstitution of TXN2 expression restored all these parameters, indicating the causal role of TXN2 mutation in disease development. Supplementation with antioxidants effectively suppressed cellular reactive oxygen species production, improved cell viability and mitigated clinical symptoms during short-term follow-up. In conclusion, our report on a patient with TXN2 deficiency suggests an important role of reactive oxygen species homeostasis for human neuronal maintenance and energy metabolism.
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Affiliation(s)
- Eliska Holzerova
- 1 Institute of Human Genetics, Technische Universität München, Trogerstr. 32, 81675 Munich, Germany 2 Institute of Human Genetics, Helmholtz Zentrum München, Ingolstädter Landstr. 1, 85764 Neuherberg, Germany
| | - Katharina Danhauser
- 3 Department of General Paediatrics, Neonatology and Paediatric Cardiology, University Children's Hospital, Heinrich-Heine-University Düsseldorf, Moorenstr. 5, 40225 Düsseldorf, Germany
| | - Tobias B Haack
- 1 Institute of Human Genetics, Technische Universität München, Trogerstr. 32, 81675 Munich, Germany 2 Institute of Human Genetics, Helmholtz Zentrum München, Ingolstädter Landstr. 1, 85764 Neuherberg, Germany
| | - Laura S Kremer
- 1 Institute of Human Genetics, Technische Universität München, Trogerstr. 32, 81675 Munich, Germany 2 Institute of Human Genetics, Helmholtz Zentrum München, Ingolstädter Landstr. 1, 85764 Neuherberg, Germany
| | - Marlen Melcher
- 3 Department of General Paediatrics, Neonatology and Paediatric Cardiology, University Children's Hospital, Heinrich-Heine-University Düsseldorf, Moorenstr. 5, 40225 Düsseldorf, Germany
| | - Irina Ingold
- 4 Institute of Developmental Genetics, Helmholtz Zentrum München, Ingolstädter Landstr. 1, 85764 Neuherberg, Germany
| | - Sho Kobayashi
- 4 Institute of Developmental Genetics, Helmholtz Zentrum München, Ingolstädter Landstr. 1, 85764 Neuherberg, Germany 5 Division of Animal Production, Specialty of Bioproduction Science, The United Graduate School of Agricultural Sciences, Iwate University, Morioka, Iwate 020-8550, Japan
| | - Caterina Terrile
- 2 Institute of Human Genetics, Helmholtz Zentrum München, Ingolstädter Landstr. 1, 85764 Neuherberg, Germany
| | - Petra Wolf
- 2 Institute of Human Genetics, Helmholtz Zentrum München, Ingolstädter Landstr. 1, 85764 Neuherberg, Germany
| | - Jörg Schaper
- 6 Medical Faculty, Department of Diagnostic and Interventional Radiology, University Düsseldorf, Moorenstr. 5, 40225 Düsseldorf, Germany
| | - Ertan Mayatepek
- 3 Department of General Paediatrics, Neonatology and Paediatric Cardiology, University Children's Hospital, Heinrich-Heine-University Düsseldorf, Moorenstr. 5, 40225 Düsseldorf, Germany
| | - Fabian Baertling
- 3 Department of General Paediatrics, Neonatology and Paediatric Cardiology, University Children's Hospital, Heinrich-Heine-University Düsseldorf, Moorenstr. 5, 40225 Düsseldorf, Germany
| | - José Pedro Friedmann Angeli
- 4 Institute of Developmental Genetics, Helmholtz Zentrum München, Ingolstädter Landstr. 1, 85764 Neuherberg, Germany
| | - Marcus Conrad
- 4 Institute of Developmental Genetics, Helmholtz Zentrum München, Ingolstädter Landstr. 1, 85764 Neuherberg, Germany
| | - Tim M Strom
- 2 Institute of Human Genetics, Helmholtz Zentrum München, Ingolstädter Landstr. 1, 85764 Neuherberg, Germany
| | - Thomas Meitinger
- 1 Institute of Human Genetics, Technische Universität München, Trogerstr. 32, 81675 Munich, Germany 2 Institute of Human Genetics, Helmholtz Zentrum München, Ingolstädter Landstr. 1, 85764 Neuherberg, Germany 7 Munich Cluster for Systems Neurology (SyNergy), 80336 Munich, Germany
| | - Holger Prokisch
- 1 Institute of Human Genetics, Technische Universität München, Trogerstr. 32, 81675 Munich, Germany 2 Institute of Human Genetics, Helmholtz Zentrum München, Ingolstädter Landstr. 1, 85764 Neuherberg, Germany
| | - Felix Distelmaier
- 3 Department of General Paediatrics, Neonatology and Paediatric Cardiology, University Children's Hospital, Heinrich-Heine-University Düsseldorf, Moorenstr. 5, 40225 Düsseldorf, Germany
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RETRACTED: Effect of thioredoxin-interacting protein on Wnt/β-catenin signaling pathway and diabetic myocardial infarction. ASIAN PAC J TROP MED 2015; 8:976-982. [DOI: 10.1016/j.apjtm.2015.10.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2015] [Revised: 09/20/2015] [Accepted: 09/30/2015] [Indexed: 11/22/2022] Open
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Zhao Y, Li X, Tang S. Retrospective analysis of the relationship between elevated plasma levels of TXNIP and carotid intima-media thickness in subjects with impaired glucose tolerance and early Type 2 diabetes mellitus. Diabetes Res Clin Pract 2015; 109:372-7. [PMID: 26026780 DOI: 10.1016/j.diabres.2015.05.028] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Revised: 03/03/2015] [Accepted: 05/02/2015] [Indexed: 01/20/2023]
Abstract
AIMS Accelerated atherosclerosis is the major cause of mortality in diabetic patients and increased oxidative stress probably plays an important role in its development. The aim of our study was to evaluate the relationship between thioredoxin-interacting protein (TXNIP) as an oxidative stress parameter and carotid artery intima-media thickness (CIMT) as an indicator of atherosclerosis in patients with early-state diabetes and impaired glucose tolerance. METHODS The study was a retrospective analysis of 90 patients with impaired glucose regulation (IGR), 80 patients with early Type 2 diabetes mellitus (T2DM), and 80 subjects with normal glucose tolerance (NGT) as the control group. It was conducted at the endocrine out-patient clinic and hospital department of Cangzhou Central Hospital (Cangzhou, China) from June 2012 to Oct. 2013. Plasma TXNIP was measured to evaluate the level of oxidative stress. CIMT was assessed by carotid artery ultrasonography. Soluble vascular cell adhesion molecule-1 (sVCAM-1), a risk indicator for endothelial dysfunction, was also measured. RESULTS Compared to the NGT control, patients with IGR showed significantly higher plasma levels of TXNIP (P<0.05). Compared to the IGR group, patients with T2DM also had significantly higher plasma levels of TXNIP (P<0.05). CIMT was significantly higher in the subjects with abnormal glucose metabolism than in the NGT group (P<0.05). CIMT showed positive correlations with both TXNIP and sVCAM-1 levels (r = 0.56 and r = 0.49, respectively, both P<0.01). CONCLUSIONS The present study showed that plasma levels of TXNIP may be a useful predictor of subclinical atherosclerosis in Type 2 diabetic patients.
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Affiliation(s)
- Yongcai Zhao
- Department of Endocrinology, CangZhou Central Hospital, Cangzhou, China.
| | - Xinsheng Li
- Department of Endocrinology, CangZhou Central Hospital, Cangzhou, China
| | - Shiling Tang
- Department of Endocrinology, CangZhou Central Hospital, Cangzhou, China
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25
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Wu JX, Zhang LY, Chen YL, Yu SS, Zhao Y, Zhao J. Curcumin pretreatment and post-treatment both improve the antioxidative ability of neurons with oxygen-glucose deprivation. Neural Regen Res 2015; 10:481-9. [PMID: 25878600 PMCID: PMC4396114 DOI: 10.4103/1673-5374.153700] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/23/2014] [Indexed: 12/26/2022] Open
Abstract
Recent studies have shown that induced expression of endogenous antioxidative enzymes thr-ough activation of the antioxidant response element/nuclear factor erythroid 2-related factor 2 (Nrf2) pathway may be a neuroprotective strategy. In this study, rat cerebral cortical neurons cultured in vitro were pretreated with 10 μM curcumin or post-treated with 5 μM curcumin, respectively before or after being subjected to oxygen-glucose deprivation and reoxygenation for 24 hours. Both pretreatment and post-treatment resulted in a significant decrease of cell injury as indicated by propidium iodide/Hoechst 33258 staining, a prominent increase of Nrf2 protein expression as indicated by western blot analysis, and a remarkable increase of protein expression and enzyme activity in whole cell lysates of thioredoxin before ischemia, after ischemia, and after reoxygenation. In addition, post-treatment with curcumin inhibited early DNA/RNA oxidation as indicated by immunocytochemistry and increased nuclear Nrf2 protein by inducing nuclear accumulation of Nrf2. These findings suggest that curcumin activates the expression of thioredoxin, an antioxidant protein in the Nrf2 pathway, and protects neurons from death caused by oxygen-glucose deprivation in an in vitro model of ischemia/reperfusion. We speculate that pharmacologic stimulation of antioxidant gene expression may be a promising approach to neuroprotection after cerebral ischemia.
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Affiliation(s)
- Jing-Xian Wu
- Department of Pathology, Chongqing Medical University, Chongqing, China ; Institute of Neuroscience, Chongqing Medical University, Chongqing, China
| | - Lu-Yu Zhang
- Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing, China
| | - Yan-Lin Chen
- Department of Pathology, Chongqing Medical University, Chongqing, China ; Institute of Neuroscience, Chongqing Medical University, Chongqing, China
| | - Shan-Shan Yu
- Department of Pathology, Chongqing Medical University, Chongqing, China ; Institute of Neuroscience, Chongqing Medical University, Chongqing, China
| | - Yong Zhao
- Department of Pathology, Chongqing Medical University, Chongqing, China ; Institute of Neuroscience, Chongqing Medical University, Chongqing, China
| | - Jing Zhao
- Institute of Neuroscience, Chongqing Medical University, Chongqing, China ; Department of Pathophysiology, Chongqing Medical University, Chongqing, China
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Chong CR, Chan WPA, Nguyen TH, Liu S, Procter NEK, Ngo DT, Sverdlov AL, Chirkov YY, Horowitz JD. Thioredoxin-interacting protein: pathophysiology and emerging pharmacotherapeutics in cardiovascular disease and diabetes. Cardiovasc Drugs Ther 2015; 28:347-60. [PMID: 25088927 DOI: 10.1007/s10557-014-6538-5] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The thioredoxin system, which consists of thioredoxin (Trx), nicotinamide adenine dinucleotide phosphate (NADPH) and thioredoxin reductase (TrxR), has emerged as a major anti-oxidant involved in the maintenance of cellular physiology and survival. Dysregulation in this system has been associated with metabolic, cardiovascular, and malignant disorders. Thioredoxin-interacting protein (TXNIP), also known as vitamin D-upregulated protein or thioredoxin-binding-protein-2, functions as a physiological inhibitor of Trx, and pathological suppression of Trx by TXNIP has been demonstrated in diabetes and cardiovascular diseases. Furthermore, TXNIP effects are partially Trx-independent; these include direct activation of inflammation and inhibition of glucose uptake. Many of the effects of TXNIP are initiated by its dissociation from intra-nuclear binding with Trx or other SH-containing proteins: these effects include its migration to cytoplasm, modulating stress responses in mitochondria and endoplasmic reticulum, and also potentially activating apoptotic pathways. TXNIP also interacts with the nitric oxide (NO) signaling system, with apparent suppression of NO effect. TXNIP production is modulated by redox stress, glucose levels, hypoxia and several inflammatory activators. In recent studies, it has been shown that therapeutic agents including insulin, metformin, angiotensin converting enzyme inhibitors and calcium channel blockers reduce TXNIP expression, although it is uncertain to what extent TXNIP suppression contributes to their clinical efficacy. This review addresses the role of TXNIP in health and in cardiovascular and metabolic disorders. Finally, the potential advantages (and disadvantages) of pharmacological suppression of TXNIP in cardiovascular disease and diabetes are summarized.
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Affiliation(s)
- Cher-Rin Chong
- Cardiology and Clinical Pharmacology Department, Basil Hetzel Institute, Queen Elizabeth Hospital, University of Adelaide, Adelaide, Australia
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Zitta K, Meybohm P, Gruenewald M, Cremer J, Zacharowski KD, Scholz J, Steinfath M, Albrecht M. Profiling of cell stress protein expression in cardiac tissue of cardiosurgical patients undergoing remote ischemic preconditioning: implications for thioredoxin in cardioprotection. J Transl Med 2015; 13:34. [PMID: 25622749 PMCID: PMC4316390 DOI: 10.1186/s12967-015-0403-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Accepted: 01/16/2015] [Indexed: 01/26/2023] Open
Abstract
Background Transient episodes of ischemia in a remote organ (remote ischemic preconditioning, RIPC) can attenuate myocardial ischemia/reperfusion injury but the underlying mechanisms of RIPC in the target organ are still poorly understood. Recent animal studies suggested that the small redox protein thioredoxin may be a potential candidate for preconditioning-induced organprotection. Here we employed a human proteome profiler array to investigate the RIPC regulated expression of cell stress proteins and particularly of thioredoxin in heart tissue of cardiosurgical patients with cardiopulmonary bypass (CPB). Methods RIPC was induced by four 5 minute cycles of transient upper limb ischemia/reperfusion using a blood pressure cuff. Right atrial tissue was obtained from patients receiving RIPC (N = 19) and control patients (N = 19) before and after CPB. Cell stress proteome profiler arrays as well as Westernblotting and ELISA experiments for thioredoxin (Thio-1) were performed employing the respective tissue samples. Results Protein arrays revealed an up-regulation of 26.9% (7/26; CA IX, Cyt C, HSP-60, HSP-70, pJNK, SOD2, Thio-1) of cell stress associated proteins in RIPC tissue obtained before CPB, while 3.8% (1/26; SIRT2) of the proteins were down-regulated. Array results for thioredoxin were verified by semi-quantitative Westernblotting studies which showed a significant up-regulation of thioredoxin protein levels in cardiac tissue samples of RIPC patients taken before CPB (RIPC: 5.36 ± 0.85 a.u.; control: 3.23 ± 0.39 a.u.; P < 0.05). Quantification of thioredoxin levels in tissue of RIPC and control patients by ELISA experiments further confirmed the Westernblotting results (RIPC: 0.30 ± 0.02 ng/mg protein; control: 0.24 ± 0.02 ng/mg protein; P < 0.05). Conclusion We provide evidence for thioredoxin as a RIPC-induced factor in heart tissue of cardiosurgical patients and identified several cell stress associated proteins that are regulated by RIPC and may play a role in RIPC-mediated cardioprotection. Electronic supplementary material The online version of this article (doi:10.1186/s12967-015-0403-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Karina Zitta
- Department of Anaesthesiology and Intensive Care Medicine, University Hospital Schleswig-Holstein, Schwanenweg 21, 24105, Kiel, Germany.
| | - Patrick Meybohm
- Department of Anaesthesiology and Intensive Care Medicine, University Hospital Schleswig-Holstein, Schwanenweg 21, 24105, Kiel, Germany. .,Department of Anaesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Frankfurt, Frankfurt am Main, Germany.
| | - Matthias Gruenewald
- Department of Anaesthesiology and Intensive Care Medicine, University Hospital Schleswig-Holstein, Schwanenweg 21, 24105, Kiel, Germany.
| | - Jochen Cremer
- Department of Cardiovascular Surgery, University Hospital Schleswig-Holstein, Kiel, Germany.
| | - Kai D Zacharowski
- Department of Anaesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Frankfurt, Frankfurt am Main, Germany.
| | - Jens Scholz
- Department of Anaesthesiology and Intensive Care Medicine, University Hospital Schleswig-Holstein, Schwanenweg 21, 24105, Kiel, Germany.
| | - Markus Steinfath
- Department of Anaesthesiology and Intensive Care Medicine, University Hospital Schleswig-Holstein, Schwanenweg 21, 24105, Kiel, Germany.
| | - Martin Albrecht
- Department of Anaesthesiology and Intensive Care Medicine, University Hospital Schleswig-Holstein, Schwanenweg 21, 24105, Kiel, Germany.
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