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Albadrani GM, Altyar AE, Kensara OA, Haridy MAM, Zaazouee MS, Elshanbary AA, Sayed AA, Abdel-Daim MM. Antioxidant, anti-inflammatory, and anti-DNA damage effects of carnosic acid against aflatoxin B1-induced hepatic, renal, and cardiac toxicities in rats. Toxicol Res (Camb) 2024; 13:tfae083. [PMID: 38939725 PMCID: PMC11200098 DOI: 10.1093/toxres/tfae083] [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: 02/20/2024] [Revised: 05/13/2024] [Accepted: 05/21/2024] [Indexed: 06/29/2024] Open
Abstract
Background Aflatoxin B1 (AFB1) food contamination is a global health hazard that has detrimental effects on both human and animal health. The objective of the current study is to assess the protective impact of carnosic acid against AFB1-induced toxicities in the liver, kidneys, and heart. Methods Forty male Wistar Albino rats (weighting 180 ~ 200 g) were allocated into 5 groups (8 rats each); the 1st group received saline as served as a control, the 2nd group received carnosic acid (CA100) at a dose of 100 mg/kg bw/day by gavage for 14 days, the 3rd group received AFB1 at a dose of 2.5 mg/kg bw, orally twice on days 12 and 14, the 4th group (AFB1-CA50) received AFB1 as in the 3rd group and CA at a dose of 50 mg/kg bw/day, and the 5th group (AFB1-CA100) received AFB1 as in the 3rd group and CA as in the 2nd group. Results CA significantly decreased the liver enzymes (ALT, AST. ALP), renal function products (LDH, BUN, creatinine), and cardiac enzymes (CK and CK-MB) to control levels after the high increment by AFB1 exposure. Moreover, CA significantly decreased the oxidative stress (MDA, NO, 8-OHdG) and increased the antioxidant enzyme activities (CAT, GSH, GSH-Px, and SOD) after severe disruption of oxidant/antioxidant balance by AFB1 exposure. Interestingly, CA significantly decreased the proinflammatory mediators (IL-6, IL-1β, and TNF-α) to the control levels after severe inflammation induced by AFB1 exposure. Conclusions Conclusively, CA had antioxidant, anti-inflammatory, and anti-DNA damage effects against hepatic, renal, and cardiac AFB1-induced toxicities.
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Affiliation(s)
- Ghadeer M Albadrani
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, PO Box 84428, Riyadh 11671, Saudi Arabia
| | - Ahmed E Altyar
- Department of Pharmacy Practice, Faculty of Pharmacy, King Abdulaziz University, P.O. Box 80260, Jeddah 21589, Saudi Arabia
- Pharmacy Program, Batterjee Medical College, P.O. Box 6231, Jeddah 21442, Saudi Arabia
| | - Osama A Kensara
- Department of Clinical Nutrition, Faculty of Applied Medical Sciences, Umm Al-Qura University, P.O. Box 7067, Makkah 21955, Saudi Arabia
| | - Mohie A M Haridy
- Department of Pathology and Laboratory Diagnosis, College of Veterinary Medicine, Qassim University, PO Box 6622, Buraydah 51452, Saudi Arabia
- Department of Pathology and Clinical Pathology, Faculty of Veterinary Medicine, South Valley University, Qena 83523, Egypt
| | | | | | - Amany A Sayed
- Zoology Department, Faculty of Science, Cairo University, Giza 12613, Egypt
| | - Mohamed M Abdel-Daim
- Department of Pharmaceutical Sciences, Pharmacy Program, Batterjee Medical College, P.O. Box 6231, Jeddah 21442, Saudi Arabia
- Pharmacology Department, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt
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Wang M, Zhao J, Chen J, Long T, Xu M, Luo T, Che Q, He Y, Xu D. The role of sirtuin1 in liver injury: molecular mechanisms and novel therapeutic target. PeerJ 2024; 12:e17094. [PMID: 38563003 PMCID: PMC10984179 DOI: 10.7717/peerj.17094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 02/20/2024] [Indexed: 04/04/2024] Open
Abstract
Liver disease is a common and serious threat to human health. The progression of liver diseases is influenced by many physiologic processes, including oxidative stress, inflammation, bile acid metabolism, and autophagy. Various factors lead to the dysfunction of these processes and basing on the different pathogeny, pathology, clinical manifestation, and pathogenesis, liver diseases are grouped into different categories. Specifically, Sirtuin1 (SIRT1), a member of the sirtuin protein family, has been extensively studied in the context of liver injury in recent years and are confirmed the significant role in liver disease. SIRT1 has been found to play a critical role in regulating key processes in liver injury. Further, SIRT1 seems to cause divers outcomes in different types of liver diseases. Recent studies have showed some therapeutic strategies involving modulating SIRT1, which may bring a novel therapeutic target. To elucidate the mechanisms underlying the role of sirtuin1 in liver injury and its potentiality as a therapeutic target, this review outlines the key signaling pathways associated with sirtuin1 and liver injury, and discusses recent advances in therapeutic strategies targeting sirtuin1 in liver diseases.
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Affiliation(s)
- Mufei Wang
- Department of Medical Instrumental Analysis, Zunyi Medical University, Zunyi, Guizhou, China
- Department of Infectious Diseases, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Juanjuan Zhao
- Department of Immunology, Zunyi Medical University, Zunyi, Guizhou, China
| | - Jiuxia Chen
- Department of Medical Instrumental Analysis, Zunyi Medical University, Zunyi, Guizhou, China
| | - Teng Long
- Department of Medical Instrumental Analysis, Zunyi Medical University, Zunyi, Guizhou, China
| | - Mengwei Xu
- Department of Medical Instrumental Analysis, Zunyi Medical University, Zunyi, Guizhou, China
| | - Tingting Luo
- Department of Medical Instrumental Analysis, Zunyi Medical University, Zunyi, Guizhou, China
| | - Qingya Che
- Department of Medical Instrumental Analysis, Zunyi Medical University, Zunyi, Guizhou, China
| | - Yihuai He
- Department of Infectious Diseases, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Delin Xu
- Department of Medical Instrumental Analysis, Zunyi Medical University, Zunyi, Guizhou, China
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Biondi G, Marrano N, Borrelli A, Rella M, D’Oria R, Genchi VA, Caccioppoli C, Cignarelli A, Perrini S, Laviola L, Giorgino F, Natalicchio A. The p66 Shc Redox Protein and the Emerging Complications of Diabetes. Int J Mol Sci 2023; 25:108. [PMID: 38203279 PMCID: PMC10778847 DOI: 10.3390/ijms25010108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 12/11/2023] [Accepted: 12/15/2023] [Indexed: 01/12/2024] Open
Abstract
Diabetes mellitus is a chronic metabolic disease, the prevalence of which is constantly increasing worldwide. It is often burdened by disabling comorbidities that reduce the quality and expectancy of life of the affected individuals. The traditional complications of diabetes are generally described as macrovascular complications (e.g., coronary heart disease, peripheral arterial disease, and stroke), and microvascular complications (e.g., diabetic kidney disease, retinopathy, and neuropathy). Recently, due to advances in diabetes management and the increased life expectancy of diabetic patients, a strong correlation between diabetes and other pathological conditions (such as liver diseases, cancer, neurodegenerative diseases, cognitive impairments, and sleep disorders) has emerged. Therefore, these comorbidities have been proposed as emerging complications of diabetes. P66Shc is a redox protein that plays a role in oxidative stress, apoptosis, glucose metabolism, and cellular aging. It can be regulated by various stressful stimuli typical of the diabetic milieu and is involved in various types of organ and tissue damage under diabetic conditions. Although its role in the pathogenesis of diabetes remains controversial, there is strong evidence regarding the involvement of p66Shc in the traditional complications of diabetes. In this review, we will summarize the evidence supporting the role of p66Shc in the pathogenesis of diabetes and its complications, focusing for the first time on the emerging complications of diabetes.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Francesco Giorgino
- Department of Precision and Regenerative Medicine and Ionian Area, Section of Internal Medicine, Endocrinology, Andrology and Metabolic Diseases, University of Bari Aldo Moro, 70124 Bari, Italy (M.R.); (R.D.); (V.A.G.)
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Shi S, Chen Y, Luo Z, Nie G, Dai Y. Role of oxidative stress and inflammation-related signaling pathways in doxorubicin-induced cardiomyopathy. Cell Commun Signal 2023; 21:61. [PMID: 36918950 PMCID: PMC10012797 DOI: 10.1186/s12964-023-01077-5] [Citation(s) in RCA: 31] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Accepted: 02/12/2023] [Indexed: 03/16/2023] Open
Abstract
Doxorubicin (DOX) is a powerful and commonly used chemotherapeutic drug, used alone or in combination in a variety of cancers, while it has been found to cause serious cardiac side effects in clinical application. More and more researchers are trying to explore the molecular mechanisms of DOX-induced cardiomyopathy (DIC), in which oxidative stress and inflammation are considered to play a significant role. This review summarizes signaling pathways related to oxidative stress and inflammation in DIC and compounds that exert cardioprotective effects by acting on relevant signaling pathways, including the role of Nrf2/Keap1/ARE, Sirt1/p66Shc, Sirt1/PPAR/PGC-1α signaling pathways and NOS, NOX, Fe2+ signaling in oxidative stress, as well as the role of NLRP3/caspase-1/GSDMD, HMGB1/TLR4/MAPKs/NF-κB, mTOR/TFEB/NF-κB pathways in DOX-induced inflammation. Hence, we attempt to explain the mechanisms of DIC in terms of oxidative stress and inflammation, and to provide a theoretical basis or new idea for further drug research on reducing DIC. Video Abstract.
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Affiliation(s)
- Saixian Shi
- Department of Pharmacy, Affiliated Hospital of Southwest Medical University, No. 25 Taiping Street, Luzhou, 646000, Sichuan Province, China.,School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan Province, China
| | - Ye Chen
- Department of Pharmacy, Affiliated Hospital of Southwest Medical University, No. 25 Taiping Street, Luzhou, 646000, Sichuan Province, China.,School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan Province, China
| | - Zhijian Luo
- Department of Ultrasound, The Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan Province, China
| | - Guojun Nie
- The First Outpatient Department of People's Liberation Army Western Theater General Hospital, Chengdu, 610000, Sichuan Province, China
| | - Yan Dai
- Department of Pharmacy, Affiliated Hospital of Southwest Medical University, No. 25 Taiping Street, Luzhou, 646000, Sichuan Province, China.
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USP15 regulates p66Shc stability associated with Drp1 activation in liver ischemia/reperfusion. Cell Death Dis 2022; 13:823. [PMID: 36163170 PMCID: PMC9512921 DOI: 10.1038/s41419-022-05277-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 09/09/2022] [Accepted: 09/15/2022] [Indexed: 01/23/2023]
Abstract
Liver ischemia/reperfusion (I/R) injury is a major clinical concern of liver transplantation, which accounts for organ rejection and liver dysfunction. The adaptor protein p66Shc acts as a crucial redox enzyme and is implicated in liver I/R. Elevated p66Shc expression is associated with hepatocellular apoptosis in liver I/R, but the molecular mechanisms of p66Shc responsible for its aberrant expression and function remain unknown. In the present study, hepatocyte-specific p66Shc-knockdown mice exhibited clear inhibition in hepatocellular apoptosis and oxidative stress under liver I/R, while hepatocyte-specific p66Shc overexpression mice displayed the deteriorative impairment. Mechanistically, p66Shc-triggered mitochondrial fission and apoptosis in liver I/R by mediating ROS-driven Drp1 activation. Furthermore, a screening for p66Shc-interacting proteins identified ubiquitin-specific protease 15 (USP15) as a mediator critical for abnormal p66Shc expression. Specifically, USP15 interacted with the SH2 domain of p66Shc and maintained its stabilization by removing ubiquitin. In vivo, p66Shc knockdown abrogated USP15-driven hepatocellular apoptosis, whereas p66Shc overexpression counteracted the antiapoptotic effect of USP15 silencing in response to liver I/R. There was clinical evidence for the positive association between p66Shc and USP15 in patients undergoing liver transplantation. In summary, p66Shc contributes to mitochondrial fission and apoptosis associated with Drp1 activation, and abnormal p66Shc expression relies on the activity of USP15 deubiquitination under liver I/R. The current study sheds new light on the molecular mechanism of p66Shc, and identifies USP15 as a novel mediator of p66Shc to facilitate better therapeutics against liver I/R.
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Yu Y, Li L, Yu W, Guan Z. Fluoride Exposure Suppresses Proliferation and Enhances Endoplasmic Reticulum Stress and Apoptosis Pathways in Hepatocytes by Downregulating Sirtuin-1. BIOMED RESEARCH INTERNATIONAL 2022; 2022:7380324. [PMID: 36046439 PMCID: PMC9420589 DOI: 10.1155/2022/7380324] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 07/20/2022] [Accepted: 07/27/2022] [Indexed: 11/17/2022]
Abstract
Objective To explore the function and mechanism of Sirt-1 in fluorine-induced liver injury. Method Fluorosis rats were first established. The fluorine content, pathological structure, collagen fibers, and fibrosis in liver tissues were tested through the fluoride ion selective electrode method, H&E, Masson, and Sirius red staining; alanine aminotransferase (ALT), aspartate aminotransferase (AST), interleukin 18 (IL-18), and tumor necrosis factor-α (TNF-α) levels in rat serum were also analyzed using ELISA kits. Then, the fluorosis cell model was built, which was also alleviated with NaF, Sirt-1 siRNAs, or endoplasmic reticulum stress (ERS) alleviator (4-PBA). CCK-8 also assessed cell proliferation; RT-qPCR or Western blots detect sirtuin-1 (Sirt-1), protein kinase R- (PKR-) like endoplasmic reticulum kinase (PERK), and endoplasmic reticulum stress (ERS) and apoptosis-related protein levels in liver tissue. Results Our results uncovered that fluorine exposure could aggravate the pathological damage and fibrosis of rat liver tissues and increase indicators related to liver injury. And fluoride exposure also could downregulate Sirt-1 and upregulate ERS-related proteins (PERK, 78-kD glucose-regulated protein (GRP-78), and activating transcription factor 6 (ATF6)) and apoptosis-related protein (caspase-3 and C/EBP-homologous protein (CHOP)) in rat liver tissues. Besides, we proved that fluoride exposure could suppress proliferation and enhances ERS and apoptotic pathways in AML12 cells by downregulating Sirt-1. Moreover, we revealed that ERS alleviator (4-PBA) could induce proliferation and prevent ERS and apoptosis in fluorine-exposed AML12 cells. Conclusions We suggested that fluorine exposure can induce hepatocyte ERS and apoptosis through downregulation of Sirt-1.
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Affiliation(s)
- Yanlong Yu
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education, Guizhou Medical University, Guiyang, China
| | - Ling Li
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education, Guizhou Medical University, Guiyang, China
- School of Basic Medical Science, Guizhou Medical University, Guiyang 550002, China
| | - Wenfeng Yu
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education, Guizhou Medical University, Guiyang, China
- School of Basic Medical Science, Guizhou Medical University, Guiyang 550002, China
| | - Zhizhong Guan
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education, Guizhou Medical University, Guiyang, China
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Zhang J, Xie B, Tang Y, Zhou B, Wang Q, Ge Q, Zhou Y, Gu T. Downregulation of miR-34c-5p alleviates chronic intermittent hypoxia-induced myocardial damage by targeting sirtuin 1. J Biochem Mol Toxicol 2022; 36:e23164. [PMID: 35848756 DOI: 10.1002/jbt.23164] [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: 11/15/2021] [Revised: 05/28/2022] [Accepted: 07/01/2022] [Indexed: 11/09/2022]
Abstract
Numerous microRNAs (miRs) are abnormally expressed in response to hypoxia-induced myocardial damage. Herein, miR-34c-5p as a potential pharmaco-target was investigated in a mouse model of chronic intermittent hypoxia (CIH)-induced myocardial damage. A mouse model of myocardial damage was established using CIH with 7% or 21% O2 alternating 60 s for 12 h/day, 21% O2 for 12 h/day. AntagomiR-34c-5p (20 nM/0.1 ml; once a week for 12 weeks) was used as a miR-34c-5p inhibitor in a mouse model with tail-vein injection. In another experiment, mice were administrated with Sirt1 activator SRT1720 (50 mg/kg/day) by intraperitoneal injection. Gene Expression Omnibus database showed a significant upregulation of miR-34c-5p expression in the ischemic myocardium of male mice. In CIH-stimulated mice, miR-34c-5p expression was also significantly increased compared with normal mice. Treatment of antagomiR-34c-5p significantly restrained CIH-triggered myocardial apoptosis. After administration of antagomiR-34c-5p or Sirt1 activator SRT1720, cardiac hypertrophy and oxidative stress were attenuated in CIH-stimulated mice. We also found sirtuin 1 (Sirt1) as a direct target of miR-34c-5p, which was able to mediate Sirt1 protein expression in cardiomyocytes. AntagomiR-34c-5p injection markedly elevated Sirt1 protein expression in CIH-stimulated mice. AntagomiR-34c-5p or Sirt1 activator SRT1720 administration exhibited the antioxidative activity and cardioprotective roles in CIH-stimulated mice.
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Affiliation(s)
- Jun Zhang
- Department of Cardiology, Chengdu First People's Hospital, Chengdu, Sichuan, China
| | - Bo Xie
- Department of Cardiology, Chengdu First People's Hospital, Chengdu, Sichuan, China
| | - Yanrong Tang
- Department of Cardiology, Chengdu First People's Hospital, Chengdu, Sichuan, China
| | - Bo Zhou
- Department of Cardiology, Chengdu First People's Hospital, Chengdu, Sichuan, China
| | - Qiong Wang
- Department of Cardiology, Chengdu First People's Hospital, Chengdu, Sichuan, China
| | - Qing Ge
- Department of Cardiology, Chengdu First People's Hospital, Chengdu, Sichuan, China
| | - Yufei Zhou
- Department of Cardiology, Chengdu First People's Hospital, Chengdu, Sichuan, China
| | - Tongqing Gu
- School of Foreign Languages, Chengdu University of Information Technology, Chengdu, Sichuan, China
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Mitochondrial PKM2 deacetylation by procyanidin B2-induced SIRT3 upregulation alleviates lung ischemia/reperfusion injury. Cell Death Dis 2022; 13:594. [PMID: 35821123 PMCID: PMC9276754 DOI: 10.1038/s41419-022-05051-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 06/26/2022] [Accepted: 06/28/2022] [Indexed: 01/21/2023]
Abstract
Apoptosis is a critical event in the pathogenesis of lung ischemia/reperfusion (I/R) injury. Sirtuin 3 (SIRT3), an important deacetylase predominantly localized in mitochondria, regulates diverse physiological processes, including apoptosis. However, the detailed mechanisms by which SIRT3 regulates lung I/R injury remain unclear. Many polyphenols strongly regulate the sirtuin family. In this study, we found that a polyphenol compound, procyanidin B2 (PCB2), activated SIRT3 in mouse lungs. Due to this effect, PCB2 administration attenuated histological lesions, relieved pulmonary dysfunction, and improved the survival rate of the murine model of lung I/R injury. Additionally, this treatment inhibited hypoxia/reoxygenation (H/R)-induced A549 cell apoptosis and rescued Bcl-2 expression. Using Sirt3-knockout mice and specific SIRT3 knockdown in vitro, we further found that SIRT3 strongly protects against lung I/R injury. Sirt3 deficiency or enzymatic inactivation substantially aggravated lung I/R-induced pulmonary lesions, promoted apoptosis, and abolished PCB2-mediated protection. Mitochondrial pyruvate kinase M2 (PKM2) inhibits apoptosis by stabilizing Bcl-2. Here, we found that PKM2 accumulates and is hyperacetylated in mitochondria upon lung I/R injury. By screening the potential sites of PKM2 acetylation, we found that SIRT3 deacetylates the K433 residue of PKM2 in A549 cells. Transfection with a deacetylated mimic plasmid of PKM2 noticeably reduced apoptosis, while acetylated mimic transfection abolished the protective effect of PKM2. Furthermore, PKM2 knockdown or inhibition in vivo significantly abrogated the antiapoptotic effects of SIRT3 upregulation. Collectively, this study provides the first evidence that the SIRT3/PKM2 pathway is a protective target for the suppression of apoptosis in lung I/R injury. Moreover, this study identifies K433 deacetylation of PKM2 as a novel modification that regulates its anti-apoptotic activity. In addition, PCB2-mediated modulation of the SIRT3/PKM2 pathway may significantly protect against lung I/R injury, suggesting a novel prophylactic strategy for lung I/R injury.
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Jin B, Li H, Zhang H, Yang J, Ma W, Lv M, Zheng X, Li X, Liu L, Wang K. Effects of carnosic acid on arsenic-induced liver injury in mice: A comparative transcriptomics analysis. J Trace Elem Med Biol 2022; 71:126953. [PMID: 35202923 DOI: 10.1016/j.jtemb.2022.126953] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 02/06/2022] [Accepted: 02/14/2022] [Indexed: 01/29/2023]
Abstract
BACKGROUND Long-term chronic exposure to arsenic can cause different degrees of liver injury. Till date, its molecular mechanism has not meant fully elucidated. Evidence indicates that Carnosic acid (CA) has a protective role in arsenic-induced liver injury. This study aimed to reveal the potential targets and evaluate the potential effect of CA intervention at transcriptional level, and provide reference for the intervention of arsenic-induced liver injury. METHODS Arsenic-induced liver injury and CA intervention models were established in C57BL/6 mice. RNA sequencing technique was carried out to obtain the differentially expressed gene (DEG) profiles. The common covariant DEGs between arsenic induction and CA intervention was screened by comparative transcriptomic analysis methods. QRT-PCR was used to verify the covariant DEGs. RESULTS Transcriptome results showed that 220 DEGs were identified after arsenic induction. 267 DEGs were identified after CA intervention (|fold change| > 2.0 and adjusted P < 0.05). 42 covariant DEGs were discovered between the comparison of "AS vs Control" and "AS & CA vs AS". In addition, hub gene analysis revealed a total of 8 covariant DEGs (Ehhadh, Fgf21, Cyp2b10, Plin2, Aacs, Cyp7a1, Per2 and Mylip). The mRNA expressions of Fgf21 and Plin2 were significantly increased (P < 0.05) and the mRNA expressions of Cyp2b10, Cyp7a1, Per2 and Mylip were significantly decreased (P < 0.05) after arsenic induction. On the contrary, the changes of these DEGs were reversed after CA intervention. CONCLUSION The present study would be helpful to understand the potential health effects of arsenic-induced liver injury and identify new potential targets, and provide a reference for the intervention of CA.
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Affiliation(s)
- Baiming Jin
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin 150081, PR China; National Health Commission & Education Bureau of Heilongjiang Province, Key Laboratory of Etiology and Epidemiology, Harbin Medical University (23618504), Harbin 150081, PR China; Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health,Harbin Medical University, Harbin 150081, PR China; Institute of Cell Biotechnology, China and Russia Medical Research Center, Harbin Medical University, Harbin 150081, PR China; Department of Preventive Medicine, Qiqihar Medical University, Qiqihar 161006, PR China.
| | - Haonan Li
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin 150081, PR China; National Health Commission & Education Bureau of Heilongjiang Province, Key Laboratory of Etiology and Epidemiology, Harbin Medical University (23618504), Harbin 150081, PR China; Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health,Harbin Medical University, Harbin 150081, PR China; Institute of Cell Biotechnology, China and Russia Medical Research Center, Harbin Medical University, Harbin 150081, PR China.
| | - Hua Zhang
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin 150081, PR China; National Health Commission & Education Bureau of Heilongjiang Province, Key Laboratory of Etiology and Epidemiology, Harbin Medical University (23618504), Harbin 150081, PR China; Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health,Harbin Medical University, Harbin 150081, PR China; Institute of Cell Biotechnology, China and Russia Medical Research Center, Harbin Medical University, Harbin 150081, PR China.
| | - Jie Yang
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin 150081, PR China; National Health Commission & Education Bureau of Heilongjiang Province, Key Laboratory of Etiology and Epidemiology, Harbin Medical University (23618504), Harbin 150081, PR China; Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health,Harbin Medical University, Harbin 150081, PR China; Institute of Cell Biotechnology, China and Russia Medical Research Center, Harbin Medical University, Harbin 150081, PR China.
| | - Wenjing Ma
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin 150081, PR China; National Health Commission & Education Bureau of Heilongjiang Province, Key Laboratory of Etiology and Epidemiology, Harbin Medical University (23618504), Harbin 150081, PR China; Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health,Harbin Medical University, Harbin 150081, PR China; Institute of Cell Biotechnology, China and Russia Medical Research Center, Harbin Medical University, Harbin 150081, PR China.
| | - Man Lv
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin 150081, PR China; National Health Commission & Education Bureau of Heilongjiang Province, Key Laboratory of Etiology and Epidemiology, Harbin Medical University (23618504), Harbin 150081, PR China; Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health,Harbin Medical University, Harbin 150081, PR China; Institute of Cell Biotechnology, China and Russia Medical Research Center, Harbin Medical University, Harbin 150081, PR China.
| | - Xiujuan Zheng
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin 150081, PR China; National Health Commission & Education Bureau of Heilongjiang Province, Key Laboratory of Etiology and Epidemiology, Harbin Medical University (23618504), Harbin 150081, PR China; Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health,Harbin Medical University, Harbin 150081, PR China; Institute of Cell Biotechnology, China and Russia Medical Research Center, Harbin Medical University, Harbin 150081, PR China; Harbin Municipal Center for Disease Control and Prevention, Harbin 150056, PR China.
| | - Xuying Li
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin 150081, PR China; National Health Commission & Education Bureau of Heilongjiang Province, Key Laboratory of Etiology and Epidemiology, Harbin Medical University (23618504), Harbin 150081, PR China; Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health,Harbin Medical University, Harbin 150081, PR China; Institute of Cell Biotechnology, China and Russia Medical Research Center, Harbin Medical University, Harbin 150081, PR China.
| | - Lele Liu
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin 150081, PR China; National Health Commission & Education Bureau of Heilongjiang Province, Key Laboratory of Etiology and Epidemiology, Harbin Medical University (23618504), Harbin 150081, PR China; Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health,Harbin Medical University, Harbin 150081, PR China; Institute of Cell Biotechnology, China and Russia Medical Research Center, Harbin Medical University, Harbin 150081, PR China.
| | - Kewei Wang
- Center for Endemic Disease Control, Chinese Center for Disease Control and Prevention, Harbin Medical University, Harbin 150081, PR China; National Health Commission & Education Bureau of Heilongjiang Province, Key Laboratory of Etiology and Epidemiology, Harbin Medical University (23618504), Harbin 150081, PR China; Heilongjiang Provincial Key Laboratory of Trace Elements and Human Health,Harbin Medical University, Harbin 150081, PR China; Institute of Cell Biotechnology, China and Russia Medical Research Center, Harbin Medical University, Harbin 150081, PR China.
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Dexmedetomidine inhibits endoplasmic reticulum stress to suppress pyroptosis of hypoxia/reoxygenation-induced intestinal epithelial cells via activating the SIRT1 expression. J Bioenerg Biomembr 2021; 53:655-664. [PMID: 34586578 DOI: 10.1007/s10863-021-09922-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 09/21/2021] [Indexed: 02/07/2023]
Abstract
Dexmedetomidine (Dex) can protect the intestine against ischemia/reperfusion (I/R)-induced injury. Sirtuin 1 (SIRT1) pathway, which could be activated by Dex, was reported to inhibit I/R injury. Pyroptosis plays an important role in intestinal diseases. We aimed to investigate whether Dex could attenuate pyroptosis of hypoxia/reoxygenation (H/R)-induced intestinal epithelial cells via activating SIRT1. The intestinal epithelial cell line IEC-6 with or without SIRT1 knockdown after H/R treatment was exposed to Dex, then cell viability, endoplasmic reticulum stress (ERS), apoptosis, pyroptosis, inflammatory cytokines production and SIRT1 expression were detected. Results showed that Dex treatment had no significant effect on IEC-6 cell viability but rescued the H/R-reduced cell viability. The expression of proteins involved in ERS including Grp78, Gadd153 and caspase 12 was enhanced upon H/R stimulation, but was reversely reduced by Dex. The cell apoptosis increased by H/R was also decreased by Dex. Additionally, Dex inhibited pyroptosis and inflammation, which were markedly promoted upon H/R stimulation. The expression of SIRT1, which was reduced after H/R treatment was also partially rescued by Dex. Finally, the above effects of Dex were all blocked by SIRT1 knockdown. In conclusion, Dex could inhibit H/R-induced intestinal epithelial cells ERS, apoptosis and pyroptosis via activating SIRT1 expression.
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Li S, Liang C, Jiang W, Deng J, Gu R, Li W, Tian F, Tang L, Sun H. Tissue-Specific Hydrogels Ameliorate Hepatic Ischemia/Reperfusion Injury in Rats by Regulating Macrophage Polarization via TLR4/NF-κB Signaling. ACS Biomater Sci Eng 2021; 7:1552-1563. [PMID: 33683856 DOI: 10.1021/acsbiomaterials.0c01610] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Injectable acellular matrix hydrogels are proven to be potential translational materials to facilitate the repairment in various tissues. However, their potential to repair hepatic ischemia/reperfusion injury (IRI) has not been explored. In this work, we made hepatic acellular matrix (HAM) hydrogels based on the decellularized process and evaluated the biocompatibility and hepatoprotective effects in a rat IRI model. HAM hydrogels supported viability, proliferation, and attachment of hepatocytes in vitro. Treatment with HAM hydrogels significantly attenuated hepatic damage caused by IRI, as evidenced by hepatic biochemistry, histology, and inflammatory responses. Importantly, HAM hydrogels inhibited macrophage M1 (CD68/CCR7) differentiation but promoted M2 (CD68/CD206) differentiation. Additionally, TLR4/NF-κB signaling was found to be involved in the hepatoprotective effect of HAM hydrogels. Collectively, our study reveals that HAM hydrogels ameliorate hepatic IRI by facilitating M2 polarization via TLR4/NF-κB signaling.
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Affiliation(s)
- Shuai Li
- Laboratory of Basic Medicine, The General Hospital of Western Theater Command, Chengdu 610083, China.,Department of General Surgery & Pancreatic Injury and Repair Key Laboratory of Sichuan Province, The General Hospital of Western Theater Command, Chengdu 610083, China.,College of Medicine, Southwest Jiaotong University, Chengdu 610083, China
| | - Chengxiao Liang
- Department of General Surgery & Pancreatic Injury and Repair Key Laboratory of Sichuan Province, The General Hospital of Western Theater Command, Chengdu 610083, China
| | - Wen Jiang
- Laboratory of Basic Medicine, The General Hospital of Western Theater Command, Chengdu 610083, China.,Department of General Surgery & Pancreatic Injury and Repair Key Laboratory of Sichuan Province, The General Hospital of Western Theater Command, Chengdu 610083, China.,College of Medicine, Southwest Jiaotong University, Chengdu 610083, China
| | - Jie Deng
- College of Medicine, Southwest Jiaotong University, Chengdu 610083, China.,Department of Clinical Pharmacy, The General Hospital of Western Theater Command, Chengdu 610083, China
| | - Rui Gu
- Laboratory of Basic Medicine, The General Hospital of Western Theater Command, Chengdu 610083, China
| | - Wei Li
- Laboratory of Basic Medicine, The General Hospital of Western Theater Command, Chengdu 610083, China
| | - Fuzhou Tian
- Department of General Surgery & Pancreatic Injury and Repair Key Laboratory of Sichuan Province, The General Hospital of Western Theater Command, Chengdu 610083, China
| | - Lijun Tang
- Department of General Surgery & Pancreatic Injury and Repair Key Laboratory of Sichuan Province, The General Hospital of Western Theater Command, Chengdu 610083, China
| | - Hongyu Sun
- Laboratory of Basic Medicine, The General Hospital of Western Theater Command, Chengdu 610083, China.,Department of General Surgery & Pancreatic Injury and Repair Key Laboratory of Sichuan Province, The General Hospital of Western Theater Command, Chengdu 610083, China.,College of Medicine, Southwest Jiaotong University, Chengdu 610083, China
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12
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Ma H, Wang C, Liu X, Zhan M, Wei W, Niu J. Src homolog and collagen homolog1 isoforms in acute and chronic liver injuries. Life Sci 2021; 273:119302. [PMID: 33662427 DOI: 10.1016/j.lfs.2021.119302] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 02/24/2021] [Accepted: 02/26/2021] [Indexed: 02/06/2023]
Abstract
Src homolog and collagen homolog (SHC) proteins are adaptor proteins bound to cell surface receptors that play an important role in signal transduction and related diseases. As an important member of the SHC protein family, SHC1 regulates cell proliferation and apoptosis, reactive oxygen species (ROS) production, and oxidative stress. Three isomeric proteins namely, p46shc, p52shc, and p66shc, are produced from the same SHC1 gene locus. All the three proteins are found in the liver, and are widely expressed in various hepatic cells. SHC1 has been proven to be associated with acute and chronic liver injuries of different etiologies, and plays important roles in liver fibrosis and hepatocellular carcinoma (HCC). Therefore, this review summarizes recent studies that discuss and explore the role of SHC1 in the occurrence and progression of liver diseases. We also provide a theoretical basis for future studies.
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Affiliation(s)
- Heming Ma
- Department of Hepatology, The First Hospital of Jilin University, Changchun, Jilin 130021, China.
| | - Chang Wang
- Department of Hepatology, The First Hospital of Jilin University, Changchun, Jilin 130021, China.
| | - Xu Liu
- Department of Hepatology, The First Hospital of Jilin University, Changchun, Jilin 130021, China.
| | - Mengru Zhan
- Department of Hepatology, The First Hospital of Jilin University, Changchun, Jilin 130021, China.
| | - Wei Wei
- Institute of Virology and AIDS Research, The First Hospital of Jilin University, Changchun, Jilin 130021, China.
| | - Junqi Niu
- Department of Hepatology, The First Hospital of Jilin University, Changchun, Jilin 130021, China.
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Wang Z, Zhao Y, Sun R, Sun Y, Liu D, Lin M, Chen Z, Zhou J, Lv L, Tian X, Yao J. circ-CBFB upregulates p66Shc to perturb mitochondrial dynamics in APAP-induced liver injury. Cell Death Dis 2020; 11:953. [PMID: 33159035 PMCID: PMC7648761 DOI: 10.1038/s41419-020-03160-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 10/15/2020] [Accepted: 10/19/2020] [Indexed: 02/06/2023]
Abstract
p66Shc, a master regulator of mitochondrial reactive oxygen species (mtROS), is a crucial mediator of hepatocyte oxidative stress. However, its functional contribution to acetaminophen (APAP)-induced liver injury and the mechanism by which it is modulated remain unknown. Here, we aimed to assess the effect of p66Shc on APAP-induced liver injury and to evaluate if circular RNA (circRNA) functions as a competitive endogenous RNA (ceRNA) to mediate p66Shc in APAP-induced liver injury. p66Shc-, miR-185-5p-, and circ-CBFB-silenced mice were injected with APAP. AML12 cells were transfected with p66Shc, miR-185-5p, and circ-CBFB silencing or overexpression plasmids or siRNAs prior to APAP stimulation. p66Shc was upregulated in liver tissues in response to APAP, and p66Shc silencing in vivo protected mice from APAP-induced mitochondrial dynamics perturbation and liver injury. p66Shc knockdown in vitro attenuated mitochondrial dynamics and APAP-induced hepatocyte injury. Mechanically, p66Shc perturbs mitochondrial dynamics partially by inhibiting OMA1 ubiquitination. miR-185-5p, which directly suppressed p66Shc translation, was identified by microarray and bioinformatics analyses, and its overexpression attenuated mitochondrial dynamics and hepatocyte injury in vitro. Furthermore, luciferase, pull-down and RNA immunoprecipitation assays demonstrated that circ-CBFB acts as a miRNA sponge of miR-185-5p to mediate p66Shc in APAP-induced liver injury. circ-CBFB knockdown also alleviated APAP-induced mitochondrial dynamics perturbation and hepatocyte injury. More importantly, we found that the protective effects of circ-CBFB knockdown on p66Shc, mitochondrial dynamics and liver injury were abolished by miR-185-5p inhibition both in vivo and in vitro. In conclusion, p66Shc is a key regulator of APAP-induced liver injury that acts by triggering mitochondrial dynamics perturbation. circ-CBFB functions as a ceRNA to regulate p66Shc during APAP-induced liver injury, which may provide a potential therapeutic target.
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Affiliation(s)
- Zhecheng Wang
- Department of Pharmacology, Dalian Medical University, 116044, Dalian, China
| | - Yan Zhao
- Department of Pharmacology, Dalian Medical University, 116044, Dalian, China
| | - Ruimin Sun
- Department of Pharmacology, Dalian Medical University, 116044, Dalian, China
| | - Yu Sun
- Department of Pharmacology, Dalian Medical University, 116044, Dalian, China
| | - Deshun Liu
- Department of General Surgery, The Second Affiliated Hospital of Dalian Medical University, 116023, Dalian, China
| | - Musen Lin
- Department of General Surgery, The Second Affiliated Hospital of Dalian Medical University, 116023, Dalian, China
| | - Zhao Chen
- Department of General Surgery, The Second Affiliated Hospital of Dalian Medical University, 116023, Dalian, China
| | - Junjun Zhou
- Department of Pharmacology, Dalian Medical University, 116044, Dalian, China
| | - Li Lv
- Department of Pharmacology, Dalian Medical University, 116044, Dalian, China
| | - Xiaofeng Tian
- Department of General Surgery, The Second Affiliated Hospital of Dalian Medical University, 116023, Dalian, China.
| | - Jihong Yao
- Department of Pharmacology, Dalian Medical University, 116044, Dalian, China.
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14
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Wang Z, Zhao Y, Zhao H, Zhou J, Feng D, Tang F, Li Y, Lv L, Chen Z, Ma X, Tian X, Yao J. Inhibition of p66Shc Oxidative Signaling via CA-Induced Upregulation of miR-203a-3p Alleviates Liver Fibrosis Progression. MOLECULAR THERAPY-NUCLEIC ACIDS 2020; 21:751-763. [PMID: 32781430 PMCID: PMC7417942 DOI: 10.1016/j.omtn.2020.07.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 06/19/2020] [Accepted: 07/06/2020] [Indexed: 12/16/2022]
Abstract
We previously found that inhibition of p66Shc confers protection against hepatic stellate cell (HSC) activation during liver fibrosis. However, the effect of p66Shc on HSC proliferation, as well as the mechanism by which p66Shc is modulated, remains unknown. Here, we elucidated the effect of p66Shc on HSC proliferation and evaluated microRNA (miRNA)-p66Shc-mediated reactive oxidative species (ROS) generation in liver fibrosis. An in vivo model of carbon tetrachloride (CCl4)-induced liver fibrosis in rats and an LX-2 cell model were developed. p66Shc expression was significantly upregulated in rats with CCl4-induced liver fibrosis and in human fibrotic livers. Additionally, p66Shc knockdown in vitro attenuated mitochondrial ROS generation and HSC proliferation. Interestingly, p66Shc promoted HSC proliferation via β-catenin dephosphorylation in vitro. MicroRNA (miR)-203a-3p, which was identified by microarray and bioinformatics analyses, directly inhibited p66Shc translation and attenuated HSC proliferation in vitro. Importantly, p66Shc was found to play an indispensable role in the protective effect of miR-203a-3p. Furthermore, carnosic acid (CA), the major antioxidant compound extracted from rosemary leaves, protected against CCl4-induced liver fibrosis through the miR-203a-3p/p66Shc axis. Collectively, these results suggest that p66Shc, which is directly suppressed by miR-203a-3p, is a key regulator of liver fibrosis. This finding may lead to the development of therapeutic targets for liver fibrosis.
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Affiliation(s)
- Zhecheng Wang
- Department of Pharmacology, Dalian Medical University, Dalian 116044, China
| | - Yan Zhao
- Department of Pharmacology, Dalian Medical University, Dalian 116044, China
| | - Huanyu Zhao
- Department of Pharmacology, Dalian Medical University, Dalian 116044, China
| | - Junjun Zhou
- Department of Pharmacology, Dalian Medical University, Dalian 116044, China
| | - Dongcheng Feng
- Department of General Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian 116023, China
| | - Fan Tang
- Department of Pharmacology, Dalian Medical University, Dalian 116044, China
| | - Yang Li
- Department of General Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian 116023, China
| | - Li Lv
- Department of Pharmacology, Dalian Medical University, Dalian 116044, China
| | - Zhao Chen
- Department of General Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian 116023, China
| | - Xiaodong Ma
- Department of Pharmacology, Dalian Medical University, Dalian 116044, China
| | - Xiaofeng Tian
- Department of General Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian 116023, China.
| | - Jihong Yao
- Department of Pharmacology, Dalian Medical University, Dalian 116044, China.
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15
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Ashrafizadeh M, Ahmadi Z, Samarghandian S, Mohammadinejad R, Yaribeygi H, Sathyapalan T, Sahebkar A. MicroRNA-mediated regulation of Nrf2 signaling pathway: Implications in disease therapy and protection against oxidative stress. Life Sci 2020; 244:117329. [PMID: 31954747 DOI: 10.1016/j.lfs.2020.117329] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 01/12/2020] [Accepted: 01/15/2020] [Indexed: 12/15/2022]
Abstract
MicroRNAs (miRs) are small non-coding pieces of RNA that are involved in a variety of physiologic processes such as apoptosis, cell proliferation, cell differentiation, cell cycle and cell survival. These multifunctional nucleotides are also capable of preventing oxidative damages by modulating antioxidant defense systems in a variety of milieu, such as in diabetes. Although the exact molecular mechanisms by which miRs modulate the antioxidant defense elements are unclear, some evidence suggests that they may exert these effects via nuclear factor erythroid 2-related factor 2 (Nrf2) signaling pathway. This intracellular mechanism is crucial in the maintenance of the physiologic redox balance by regulating the expression and activity of various cellular antioxidative defense elements and thereby plays a pivotal role in the development of oxidative stress. Any impairment in the Nrf2 signaling pathway may result in oxidative damage-dependent complications such as various diabetic complications, neurological disorders and cancer. In the current review, we discuss the modulatory effects of miRs on the Nrf2 signaling pathway, which can potentially be novel therapeutic targets.
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Affiliation(s)
- Milad Ashrafizadeh
- Department of Basic Science, Faculty of Veterinary Medicine, University of Tabriz, Tabriz, Iran
| | - Zahra Ahmadi
- Department of Basic Science, Shoushtar Branch, Islamic Azad University, Shoushtar, Iran
| | - Saeed Samarghandian
- Department of Basic Medical Sciences, Neyshabur University of Medical Sciences, Neyshabur, Iran
| | - Reza Mohammadinejad
- Pharmaceutics Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Habib Yaribeygi
- Research Center of Physiology, Semnan University of Medical Sciences, Semnan, Iran.
| | - Thozhukat Sathyapalan
- Department of Academic Diabetes, Endocrinology and Metabolism, Hull York Medical School, University of Hull, Hull, UK
| | - Amirhossein Sahebkar
- Halal Research Center of IRI, FDA, Tehran, Iran; Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
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16
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Soto G, Rodríguez MJ, Fuentealba R, Treuer AV, Castillo I, González DR, Zúñiga-Hernández J. Maresin 1, a Proresolving Lipid Mediator, Ameliorates Liver Ischemia-Reperfusion Injury and Stimulates Hepatocyte Proliferation in Sprague-Dawley Rats. Int J Mol Sci 2020; 21:ijms21020540. [PMID: 31952110 PMCID: PMC7014175 DOI: 10.3390/ijms21020540] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 12/12/2019] [Accepted: 12/12/2019] [Indexed: 12/12/2022] Open
Abstract
Maresin-1 (MaR1) is a specialized pro-resolving mediator, derived from omega-3 fatty acids, whose functions are to decrease the pro-inflammatory and oxidative mediators, and also to stimulate cell division. We investigated the hepatoprotective actions of MaR1 in a rat model of liver ischemia-reperfusion (IR) injury. MaR1 (4 ng/gr body weight) was administered prior to ischemia (1 h) and reperfusion (3 h), and controls received isovolumetric vehicle solution. To analyze liver function, transaminases levels and tissue architecture were assayed, and serum cytokines TNF-α, IL-6, and IL-10, mitotic activity index, and differential levels of NF-κB and Nrf-2 transcription factors, were analyzed. Transaminase, TNF-α levels, and cytoarchitecture were normalized with the administration of MaR1 and associated with changes in NF-κB. IL-6, mitotic activity index, and nuclear translocation of Nrf-2 increased in the MaR1-IR group, which would be associated with hepatoprotection and cell proliferation. Taken together, these results suggest that MaR1 alleviated IR liver injury, facilitated by the activation of hepatocyte cell division, increased IL-6 cytokine levels, and the nuclear localization of Nrf-2, with a decrease of NF-κB activity. All of them were related to an improvement of liver injury parameters. These results open the possibility of MaR1 as a potential therapeutic tool in IR and other hepatic pathologies.
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Affiliation(s)
- Gonzalo Soto
- Escuela de Tecnología Medica, Facultad de Ciencias de la Salud, Universidad de Talca, Talca 3460000, Chile;
| | - María José Rodríguez
- Programa de Doctorado en Ciencias mención Investigación y Desarrollo de Productos Bioactivos, Instituto de Química de los Recursos Naturales, Universidad de Talca, Talca 3460000, Chile; (M.J.R.); (R.F.)
- Escuela de Medicina, Universidad de Talca, Talca 3460000, Chile
| | - Roberto Fuentealba
- Programa de Doctorado en Ciencias mención Investigación y Desarrollo de Productos Bioactivos, Instituto de Química de los Recursos Naturales, Universidad de Talca, Talca 3460000, Chile; (M.J.R.); (R.F.)
- Departamento de Ciencias Básicas Biomédicas, Facultad de Ciencias de la Salud, Universidad de Talca, Talca 3460000, Chile; (A.V.T.); (D.R.G.)
| | - Adriana V. Treuer
- Departamento de Ciencias Básicas Biomédicas, Facultad de Ciencias de la Salud, Universidad de Talca, Talca 3460000, Chile; (A.V.T.); (D.R.G.)
- Centro de Bioinformática, Simulación y Modelado, Facultad de Ingeniería, Universidad de Talca, Talca 3460000, Chile
| | - Iván Castillo
- Unidad de Anatomía Patológica, Hospital Regional de Talca, Talca 3460001, Chile;
- Centro Oncológico, Facultad de Medicina, Universidad Católica del Maule, Talca 3466706, Chile
| | - Daniel R. González
- Departamento de Ciencias Básicas Biomédicas, Facultad de Ciencias de la Salud, Universidad de Talca, Talca 3460000, Chile; (A.V.T.); (D.R.G.)
| | - Jessica Zúñiga-Hernández
- Escuela de Medicina, Universidad de Talca, Talca 3460000, Chile
- Correspondence: ; Tel.: +56-71-2201667
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Liu Y, Li Y, Ni J, Shu Y, Wang H, Hu T. MiR-124 attenuates doxorubicin-induced cardiac injury via inhibiting p66Shc-mediated oxidative stress. Biochem Biophys Res Commun 2020; 521:420-426. [DOI: 10.1016/j.bbrc.2019.10.157] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Accepted: 10/21/2019] [Indexed: 01/17/2023]
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Berberine Ameliorates Doxorubicin-Induced Cardiotoxicity via a SIRT1/p66Shc-Mediated Pathway. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:2150394. [PMID: 31885776 PMCID: PMC6918936 DOI: 10.1155/2019/2150394] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 09/19/2019] [Accepted: 10/18/2019] [Indexed: 12/24/2022]
Abstract
Doxorubicin- (DOX-) induced cardiotoxicity is associated with oxidative stress and cardiomyocyte apoptosis. The adaptor protein p66Shc regulates the cellular redox status and determines cell susceptibility to apoptosis. This study is aimed at investigating the involvement of sirtuin 1- (SIRT1-) mediated p66Shc inhibition in DOX-induced redox signalling and exploring the possible protective mechanisms of berberine (Ber) against DOX-triggered cardiac injury in rats and a cultured H9c2 cell line. Our results showed that the Ber pretreatment markedly increased CAT, SOD, and GSH-PX activities, decreased the levels of MDA, and improved the electrocardiogram and histopathological changes in the myocardium in DOX-treated rats (in vivo). Furthermore, Ber significantly ameliorated the DOX-induced oxidative insult and mitochondrial damage by adjusting the levels of intracellular ROS, ΔΨm, and [Ca2+]m in H9c2 cells (in vitro). Importantly, the Ber pretreatment increased SIRT1 expression following DOX exposure but downregulated p66Shc. Consistent with the results demonstrating the SIRT1-mediated inhibition of p66Shc expression, the Ber pretreatment inhibited DOX-triggered cardiomyocyte apoptosis and mitochondrial dysfunction. After exposing H9c2 cells to DOX, the increased SIRT1 expression induced by Ber was abrogated by a SIRT1-specific inhibitor (EX527) or the use of siRNA against SIRT1. Accordingly, SIRT1 inhibition significantly abrogated the suppression of p66Shc expression and protection of Ber against DOX-induced oxidative stress and apoptosis. These results suggest that Ber protects the heart from DOX injury through SIRT1-mediated p66Shc suppression, offering a novel mechanism responsible for the protection of Ber against DOX-induced cardiomyopathy.
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19
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Huang G, Hao F, Hu X. Downregulation of microRNA-155 stimulates sevoflurane-mediated cardioprotection against myocardial ischemia/reperfusion injury by binding to SIRT1 in mice. J Cell Biochem 2019; 120:15494-15505. [PMID: 31099069 DOI: 10.1002/jcb.28816] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 02/02/2019] [Accepted: 02/14/2019] [Indexed: 12/21/2022]
Abstract
OBJECTIVE The inhaled sevoflurane has been demonstrated to protect against myocardial ischemia/reperfusion (I/R) injury. However, the relative mechanisms of sevoflurane-mediated cardioprotection remain largely unknown. This study intends to explore the effect of miR-155 on the sevoflurane-mediated cardioprotection by regulating Sirtuin 1 (SIRT1) in mouse models of myocardial I/R. METHODS Left anterior descending coronary artery ligation was used to induce models of myocardial I/R in mice. The I/R mice were treated with sevoflurane, sevoflurane + mimics negative control (NC) or sevoflurane + miR-155 mimics. The expression of microRNA-155 (miR-155) and SIRT1 was examined by quantitative real-time polymerase chain reaction and Western blot assay. Then cardiac functions and hemodynamic alterations were evaluated. Evans blue-2,3,5-triphenyltetrazolium chloride and terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling assay staining methods were adopted to evaluate infarct size and cardiomyocyte apoptosis, respectively. RESULTS In the I/R mice, miR-155 was expressed at a high level and SIRT1 at a low level. SIRT1 was confirmed to be a target gene of miR-155. The treatment of sevoflurane could reduce miR-155 expression and increased SIRT1 expression in the myocardial tissues, under which conditions, cardiac functions were promoted, accompanied by reduced infarct size and inhibited cardiomyocyte apoptosis. In response to miR-155 upregulation, the sevoflurane-treated I/R mice showed reduced cardiac functions, and increased infarct size and cardiomyocyte apoptosis. CONCLUSION The findings obtained in this study provide evidence suggesting that miR-155 targets and negatively regulates SIRT1 expression, a mechanism by which the protection of sevoflurane is inhibited against myocardial I/R in mice.
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Affiliation(s)
- Guirong Huang
- Department of Anesthesiology, Central Hospital of Linyi, Linyi, Shandong, P.R. China
| | - Fengguan Hao
- Department of Epidemic Prevention, Dragon House Township Health Centers, Linyi, Shandong, P.R. China
| | - Xueyan Hu
- Department of Anesthesiology, Central Hospital of Linyi, Linyi, Shandong, P.R. China
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20
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Teng L, Fan L, Peng Y, He X, Chen H, Duan H, Yang F, Lin D, Lin Z, Li H, Shao B. Carnosic Acid Mitigates Early Brain Injury After Subarachnoid Hemorrhage: Possible Involvement of the SIRT1/p66shc Signaling Pathway. Front Neurosci 2019; 13:26. [PMID: 30890904 PMCID: PMC6411796 DOI: 10.3389/fnins.2019.00026] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Accepted: 01/11/2019] [Indexed: 12/31/2022] Open
Abstract
Carnosic acid (CA) has been reported to exhibit a variety of bioactivities including antioxidation, neuroprotection, and anti-inflammation; however, the impact of CA on subarachnoid hemorrhage (SAH) has never been elucidated. The current study was undertaken to explore the role of CA in early brain injury (EBI) secondary to SAH and the underlying mechanisms. Adult male Sprague-Dawley rats were perforated to mimic a clinical aneurysm with SAH. CA or vehicle was administered intravenously immediately after the SAH occurred. Mortality, SAH grade, neurologic function scores, brain water content, Evans blue extravasation, and the levels of reactive oxygen species (ROS) levels in the ipsilateral cortex were determined 24 h after the SAH occurred. Western blot, immunofluorescence, Fluoro-Jade C (FJC) and TUNEL staining were also performed. Our results showed that CA decreased ROS levels, alleviated brain edema and blood-brain barrier permeability, reduced neuronal cell death, and promoted neurologic function improvement. To probe into the potential mechanisms. We showed that CA increased SIRT1, MnSOD, and Bcl-2 expression, as well as decreased p66shc, Bax, and cleaved caspase-3 expression. Interestingly, sirtinol, a selective inhibitor of SIRT1, abolished the anti-apoptotic effects of CA. Taken together, these data revealed that CA has a neuroprotective role in EBI secondary to SAH. The potential mechanism may involve suppression of neuronal apoptosis through the SIRT1/p66shc signaling pathway. CA may provide a promising therapeutic regimen for management of SAH.
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Affiliation(s)
- Lingfang Teng
- Department of Neurosurgery, The First People's Hospital of Wenling, Wenling, China
| | - Linfeng Fan
- Department of Pediatric Surgery, Capital Institute of Pediatrics, Beijing, China
| | - Yujiang Peng
- Department of Neurosurgery, The First People's Hospital of Wenling, Wenling, China
| | - Xijun He
- Department of Neurosurgery, The First People's Hospital of Wenling, Wenling, China
| | - Huihui Chen
- Department of Neurosurgery, The First People's Hospital of Wenling, Wenling, China
| | - Hongyu Duan
- Department of Neurosurgery, The First People's Hospital of Wenling, Wenling, China
| | - Fan Yang
- Department of Neurosurgery, The First People's Hospital of Wenling, Wenling, China
| | - Da Lin
- Department of Neurosurgery, The First People's Hospital of Wenling, Wenling, China
| | - Zheng Lin
- Department of Neurosurgery, The First People's Hospital of Wenling, Wenling, China
| | - Huiyong Li
- Department of Neurosurgery, The First People's Hospital of Wenling, Wenling, China
| | - Bo Shao
- Department of Neurosurgery, The First People's Hospital of Wenling, Wenling, China
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21
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Zhao Y, Wang Z, Feng D, Zhao H, Lin M, Hu Y, Zhang N, Lv L, Gao Z, Zhai X, Tian X, Yao J. p66Shc Contributes to Liver Fibrosis through the Regulation of Mitochondrial Reactive Oxygen Species. Theranostics 2019; 9:1510-1522. [PMID: 30867846 PMCID: PMC6401497 DOI: 10.7150/thno.29620] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 01/15/2019] [Indexed: 01/09/2023] Open
Abstract
Background: p66Shc is a redox enzyme that mediates mitochondrial reactive oxygen species (ROS) generation. p66Shc inhibition confers protection against liver injury, however, its functional contribution to liver fibrosis remains unclear. The aim of this study is to explore the involvement of p66Shc in liver fibrosis and underlying mechanism of p66Shc by focusing on mitochondrial ROS. Methods: p66Shc-silenced mice were injected with carbon tetrachloride (CCl4). Primary hepatic stellate cells (HSCs) were performed with p66Shc silencing or overexpression prior to TGF-β1 stimulation. Results: p66Shc expression was progressively elevated in mice with CCl4-induced liver fibrosis, and p66Shc silencing in vivo significantly attenuated fibrosis development, reducing liver damage, oxidative stress and HSC activation, indicated by the decreased α-SMA, CTGF and TIMP1 levels. Furthermore, in primary HSCs, p66Shc-mediated mitochondrial ROS production played a vital role in mitochondrial morphology and cellular metabolism. Knockdown of p66Shc significantly inhibited mitochondrial ROS production and NOD-like receptor protein 3 (NLRP3) inflammasome activation, which were closely associated with HSC activation, indicated by the decreased α-SMA, CTGF and TIMP1 levels. However, p66Shc overexpression exerted the opposite effects, which were suppressed by a specific mitochondrial ROS scavenger (mito-TEMPO). More importantly, p66Shc expression was significantly increased in human with liver fibrosis, accompanied by NLRP3 inflammasome activation. Conclusions: p66Shc is a key regulator of liver fibrosis by mediating mitochondrial ROS production, which triggers NLRP3 inflammasome activation.
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22
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Sun X, Wang P, Yao LP, Wang W, Gao YM, Zhang J, Fu YJ. Paeonol alleviated acute alcohol-induced liver injury via SIRT1/Nrf2/NF-κB signaling pathway. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2018; 60:110-117. [PMID: 29704732 DOI: 10.1016/j.etap.2018.04.016] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 04/16/2018] [Accepted: 04/20/2018] [Indexed: 05/22/2023]
Abstract
In this study, the beneficial effect of paeonol on acute alcohol-induced liver injury and the basic mechanisms were investigated. in vitro, HepG2 cells were treated with paeonol for 24 h before it were exposed to alcohol for 24 h. in vivo, male C57BL/6 mice were used to establish alcohol-induced liver injury models by oral gavage of alcohol (5 g/kg BW). Paeonol pretreatment showed statistically significant reduction in alcohol-induced ROS, MDA, IL-1β, IL-6, TNF-α, and nitric oxide, while GSH content was retained (P < 0.05). Furthermore, paeonol treatment resulted in the increase of Nrf2 nuclear translocation, the increase of NQO-1 and HO-1 expression, and the suppression of NF-κB p65 nuclear translocation. However, pretreatment with NAM (inhibitor of SIRT1) not only inhibited the effect of paeonol on reducing nuclear translocation of NF-κBp65, but also inhibited the effect of paeonol on promoting the expression of nuclear Nrf2, NQO1 and HO-1. Besides, paeonol pretreatment at test doses significantly ameliorated alcohol-induced edema, hepatocyte necrosis and hepatic cord irregular. These results demonstrated that paeonol has the high potential for relieving acute alcohol-induced liver injury.
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Affiliation(s)
- Xing Sun
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Harbin 150040, PR China; Engineering Research Center of Forest Bio-preparation, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China
| | - Peng Wang
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Harbin 150040, PR China; Engineering Research Center of Forest Bio-preparation, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China
| | - Li-Ping Yao
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Harbin 150040, PR China; Engineering Research Center of Forest Bio-preparation, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China
| | - Wei Wang
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Harbin 150040, PR China; Engineering Research Center of Forest Bio-preparation, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China
| | - Yi-Meng Gao
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Harbin 150040, PR China; Engineering Research Center of Forest Bio-preparation, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China
| | - Jing Zhang
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Harbin 150040, PR China; Engineering Research Center of Forest Bio-preparation, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China
| | - Yu-Jie Fu
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Harbin 150040, PR China; Engineering Research Center of Forest Bio-preparation, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China; The college of Forestry, Beijing Forestry University, Beijing 100083, PR China.
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23
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D'Onofrio N, Servillo L, Balestrieri ML. SIRT1 and SIRT6 Signaling Pathways in Cardiovascular Disease Protection. Antioxid Redox Signal 2018; 28:711-732. [PMID: 28661724 PMCID: PMC5824538 DOI: 10.1089/ars.2017.7178] [Citation(s) in RCA: 251] [Impact Index Per Article: 41.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Accepted: 05/24/2017] [Indexed: 02/06/2023]
Abstract
SIGNIFICANCE Oxidative stress represents the common hallmark of pathological conditions associated with cardiovascular disease (CVD), including atherosclerosis, heart failure, hypertension, aging, diabetes, and other vascular system-related diseases. The sirtuin (SIRT) family, comprising seven proteins (SIRT1-SIRT7) sharing a highly conserved nicotinamide adenine dinucleotide (NAD+)-binding catalytic domain, attracted a great attention for the past few years as stress adaptor and epigenetic enzymes involved in the cellular events controlling aging-related disorder, cancer, and CVD. Recent Advances: Among sirtuins, SIRT1 and SIRT6 are the best characterized for their protective roles against inflammation, vascular aging, heart disease, and atherosclerotic plaque development. This latest role has been only recently unveiled for SIRT6. Of interest, in recent years, complex signaling networks controlled by SIRT1 and SIRT6 common to stress resistance, vascular aging, and CVD have emerged. CRITICAL ISSUES We provide a comprehensive overview of recent developments on the molecular signaling pathways controlled by SIRT1 and SIRT6, two post-translational modifiers proven to be valuable tools to dampen inflammation and oxidative stress at the cardiovascular level. FUTURE DIRECTIONS A deeper understanding of the epigenetic mechanisms through which SIRT1 and SIRT6 act in the signalings responsible for onset and development CVD is a prime scientific endeavor of the upcoming years. Multiple "omic" technologies will have widespread implications in understanding such mechanisms, speeding up the achievement of selective and efficient pharmacological modulation of sirtuins for future applications in the prevention and treatment of CVD. Antioxid. Redox Signal. 28, 711-732.
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Affiliation(s)
- Nunzia D'Onofrio
- Department of Biochemistry, Biophysics and General Pathology, School of Medicine and Surgery, Università degli Studi della Campania , Naples, Italy
| | - Luigi Servillo
- Department of Biochemistry, Biophysics and General Pathology, School of Medicine and Surgery, Università degli Studi della Campania , Naples, Italy
| | - Maria Luisa Balestrieri
- Department of Biochemistry, Biophysics and General Pathology, School of Medicine and Surgery, Università degli Studi della Campania , Naples, Italy
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24
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Zhang S, Wang Z, Zhu J, Xu T, Zhao Y, Zhao H, Tang F, Li Z, Zhou J, Gao D, Tian X, Yao J. Carnosic Acid Alleviates BDL-Induced Liver Fibrosis through miR-29b-3p-Mediated Inhibition of the High-Mobility Group Box 1/Toll-Like Receptor 4 Signaling Pathway in Rats. Front Pharmacol 2018; 8:976. [PMID: 29403377 PMCID: PMC5780338 DOI: 10.3389/fphar.2017.00976] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 12/21/2017] [Indexed: 12/19/2022] Open
Abstract
Fibrosis reflects a progression to liver cancer or cirrhosis of the liver. Recent studies have shown that high-mobility group box-1 (HMGB1) plays a major role in hepatic injury and fibrosis. Carnosic acid (CA), a compound extracted from rosemary, has been reported to alleviate alcoholic and non-alcoholic fatty liver injury. CA can also alleviate renal fibrosis. We hypothesized that CA might exert anti-liver fibrosis properties through an HMGB1-related pathway, and the results of the present study showed that CA treatment significantly protected against hepatic fibrosis in a bile duct ligation (BDL) rat model. CA reduced the liver expression of α-smooth muscle actin (α-SMA) and collagen 1 (Col-1). Importantly, we found that CA ameliorated the increase in HMGB1 and Toll-like receptor 4 (TLR4) caused by BDL, and inhibited NF-κB p65 nuclear translocation in fibrotic livers. In vitro, CA inhibited LX2 cell activation by inhibiting HMGB1/TLR4 signaling pathway. Furthermore, miR-29b-3p decreased HMGB1 expression, and a dual-luciferase assay validated these results. Moreover, CA down-regulated HMGB1 and inhibited LX2 cell activation, and these effects were significantly counteracted by antago-miR-29b-3p, indicating that the CA-mediated inhibition of HMGB1 expression might be miR-29b-3p dependent. Collectively, the results demonstrate that a miR-29b-3p/HMGB1/TLR4/NF-κB signaling pathway, which can be modulated by CA, is important in liver fibrosis, and indicate that CA might be a prospective therapeutic drug for liver fibrosis.
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Affiliation(s)
- Shuai Zhang
- Department of Pharmacology, Dalian Medical University, Dalian, China
| | - Zhecheng Wang
- Department of Pharmacology, Dalian Medical University, Dalian, China
| | - Jie Zhu
- Department of Pharmacology, Dalian Medical University, Dalian, China
| | - Ting Xu
- Department of Pharmacology, Dalian Medical University, Dalian, China
| | - Yan Zhao
- Department of Pharmacology, Dalian Medical University, Dalian, China
| | - Huanyu Zhao
- Department of Pharmacology, Dalian Medical University, Dalian, China
| | - Fan Tang
- Department of Pharmacology, Dalian Medical University, Dalian, China
| | - Zhenlu Li
- Department of General Surgery, Second Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Junjun Zhou
- Department of Pharmacology, Dalian Medical University, Dalian, China
| | - Dongyan Gao
- Department of Pharmacology, Dalian Medical University, Dalian, China
| | - Xiaofeng Tian
- Department of General Surgery, Second Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Jihong Yao
- Department of Pharmacology, Dalian Medical University, Dalian, China
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25
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Cheng Y, Di S, Fan C, Cai L, Gao C, Jiang P, Hu W, Ma Z, Jiang S, Dong Y, Li T, Wu G, Lv J, Yang Y. SIRT1 activation by pterostilbene attenuates the skeletal muscle oxidative stress injury and mitochondrial dysfunction induced by ischemia reperfusion injury. Apoptosis 2018; 21:905-16. [PMID: 27270300 DOI: 10.1007/s10495-016-1258-x] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Ischemia reperfusion (IR) injury is harmful to skeletal muscles and causes mitochondrial oxidative stress. Pterostilbene (PTE), an analogue of resveratrol, has organic protective effects against oxidative stress. However, no studies have investigated whether PTE can protect against IR-related skeletal muscular injury. In this study, we sought to evaluate the protective effect of PTE against IR-related skeletal muscle injury and to determine the mechanisms in this process. Male Sprague-Dawley rats were pretreated with PTE for a week and then underwent limb IR surgery. The IR injury induced segmental necrosis and apoptosis, myofilament disintegration, thicker interstitial spaces, and inflammatory cell infiltration. Furthermore, mitochondrial respiratory chain activity in the muscular tissue was inhibited, methane dicarboxylic aldehyde concentration and myeloperoxidase activity were up-regulated, and superoxide dismutase was down-regulated after IR. However, these effects were significantly inhibited by PTE in a dose-dependent manner. The mechanism underlying IR injury is attributed to the down-regulation of silent information regulator 1 (SIRT1)-FOXO1/p53 pathway and the increase of the Bax/Bcl2 ratio, Cleaved poly ADP-ribose polymerase 1, Cleaved Caspase 3, which can be reversed with PTE. Furthermore, EX527, an SIRT1 inhibitor, counteracted the protective effects of PTE on IR-related muscle injury. In conclusion, PTE has protective properties against IR injury of the skeletal muscles. The mechanism of this protective effect depends on the activation of the SIRT1-FOXO1/p53 signaling pathway and the decrease of the apoptotic ratio in skeletal muscle cells.
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Affiliation(s)
- Yedong Cheng
- Department of Orthopaedics, The 82th Hospital of PLA, 100# Jiankang Road, Huaian, 213002, China. .,Department of Biomedical Engineering, The Fourth Military Medical University, 169 Changle West Road, Xi'an, 710032, China.
| | - Shouyin Di
- Department of Thoracic Surgery, Tangdu Hospital, The Fourth Military Medical University, 1 Xinsi Road, Xi'an, 710038, China
| | - Chongxi Fan
- Department of Thoracic Surgery, Tangdu Hospital, The Fourth Military Medical University, 1 Xinsi Road, Xi'an, 710038, China
| | - Liping Cai
- Department of Orthopaedics, The 82th Hospital of PLA, 100# Jiankang Road, Huaian, 213002, China
| | - Chao Gao
- Department of Orthopaedics, The 82th Hospital of PLA, 100# Jiankang Road, Huaian, 213002, China
| | - Peng Jiang
- Department of Orthopaedics, The 82th Hospital of PLA, 100# Jiankang Road, Huaian, 213002, China
| | - Wei Hu
- Department of Biomedical Engineering, The Fourth Military Medical University, 169 Changle West Road, Xi'an, 710032, China
| | - Zhiqiang Ma
- Department of Thoracic Surgery, Tangdu Hospital, The Fourth Military Medical University, 1 Xinsi Road, Xi'an, 710038, China
| | - Shuai Jiang
- Department of Aerospace Medicine, The Fourth Military Medical University, 169 Changle West Road, Xi'an, 710032, China
| | - Yushu Dong
- Department of Neurosurgery, General Hospital of Shenyang Military Area Command, 83 Wenhua Road, Shenyang, 110016, China
| | - Tian Li
- Department of Biomedical Engineering, The Fourth Military Medical University, 169 Changle West Road, Xi'an, 710032, China
| | - Guiling Wu
- Department of Biomedical Engineering, The Fourth Military Medical University, 169 Changle West Road, Xi'an, 710032, China
| | - Jianjun Lv
- Department of Biomedical Engineering, The Fourth Military Medical University, 169 Changle West Road, Xi'an, 710032, China
| | - Yang Yang
- Department of Biomedical Engineering, The Fourth Military Medical University, 169 Changle West Road, Xi'an, 710032, China.
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26
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Zhao Y, Shi X, Ding C, Feng D, Li Y, Hu Y, Wang L, Gao D, Tian X, Yao J. Carnosic acid prevents COL1A2 transcription through the reduction of Smad3 acetylation via the AMPKα1/SIRT1 pathway. Toxicol Appl Pharmacol 2017; 339:172-180. [PMID: 29253500 DOI: 10.1016/j.taap.2017.12.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 11/25/2017] [Accepted: 12/14/2017] [Indexed: 01/07/2023]
Abstract
Carnosic acid (CA), a major bioactive component in rosemary extract, has many biological and pharmaceutical activities. Smad3 acetylation can regulate the transcription of type I α2 collagen (COL1A2), which is the major component of the extracellular matrix (ECM). The aim of the current study was to evaluate whether CA inhibits COL1A2 transcription via the reduction of Smad3 acetylation against liver fibrosis. The results showed that CA treatment significantly suppressed COL1A2 transcription and markedly decreased the deposition of ECM induced by dimethylamine (DMN) in rats. Importantly, the suppression of COL1A2 transcription following CA treatment depended on the reduction of Smad3 acetylation via the activation of Sirtuin 1 (SIRT1), a nicotinamide adenine dinucleotide+ (NAD+)-dependent deacetylase. SIRT1 siRNA increased the acetylation of Smad3 and blocked CA-down-regulated Smad3 deacetylation. Notably, CA-mediated AMP-activated protein kinase-α1 (AMPKα1) activation not only increased AMPKα1 phosphorylation but also increased SIRT1 expression, thus leading to a significant reduction in Smad3 acetylation. Furthermore, CA-mediated SIRT1 activation was inhibited by AMPKα1 siRNA. Collectively, CA can inhibit the transcription of COL1A2 through SIRT1-mediated Smad3 deacetylation, and the activation of SIRT1 by CA involves the AMPKα1/SIRT1 pathway in liver fibrosis.
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Affiliation(s)
- Yan Zhao
- Department of Pharmacology, Dalian Medical University, Dalian 116044, China
| | - Xue Shi
- Department of Pharmacology, Dalian Medical University, Dalian 116044, China; Department of Pharmacy, First Affiliated Hospital of Xinxiang Medical University, Xinxiang 453100, China
| | - Chunchun Ding
- Department of Pharmacology, Dalian Medical University, Dalian 116044, China; Department of Pharmacy, Gansu Provincial Hospital, Lanzhou, 730000, China
| | - Dongcheng Feng
- Department of General Surgery, Second Affiliated Hospital of Dalian Medical University, Dalian 116023, China
| | - Yang Li
- Department of General Surgery, Second Affiliated Hospital of Dalian Medical University, Dalian 116023, China
| | - Yan Hu
- Department of Pharmacology, Dalian Medical University, Dalian 116044, China
| | - Li Wang
- Department of Pharmacology, Dalian Medical University, Dalian 116044, China
| | - Dongyan Gao
- Department of Pharmacology, Dalian Medical University, Dalian 116044, China
| | - Xiaofeng Tian
- Department of General Surgery, Second Affiliated Hospital of Dalian Medical University, Dalian 116023, China
| | - Jihong Yao
- Department of Pharmacology, Dalian Medical University, Dalian 116044, China.
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Nakamura K, Zhang M, Kageyama S, Ke B, Fujii T, Sosa RA, Reed EF, Datta N, Zarrinpar A, Busuttil RW, Araujo JA, Kupiec-Weglinski JW. Macrophage heme oxygenase-1-SIRT1-p53 axis regulates sterile inflammation in liver ischemia-reperfusion injury. J Hepatol 2017; 67:1232-1242. [PMID: 28842295 PMCID: PMC5884687 DOI: 10.1016/j.jhep.2017.08.010] [Citation(s) in RCA: 151] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 08/03/2017] [Accepted: 08/08/2017] [Indexed: 12/14/2022]
Abstract
BACKGROUND & AIMS Hepatic ischemia-reperfusion injury (IRI), characterized by exogenous antigen-independent local inflammation and hepatocellular death, represents a risk factor for acute and chronic rejection in liver transplantation. We aimed to investigate the molecular communication involved in the mechanism of liver IRI. METHODS We analyzed human liver transplants, primary murine macrophage cell cultures and IR-stressed livers in myeloid-specific heme oxygenase-1 (HO-1) gene mutant mice, for anti-inflammatory and cytoprotective functions of macrophage-specific HO-1/SIRT1 (sirtuin 1)/p53 (tumor suppressor protein) signaling. RESULTS Decreased HO-1 expression in human post-reperfusion liver transplant biopsies correlated with a deterioration in hepatocellular function (serum ALT; p<0.05) and inferior patient survival (p<0.05). In the low HO-1 liver transplant biopsy group, SIRT1/Arf (alternative reading frame)/p53/MDM2 (murine double minute 2) expression levels decreased (p<0.05) while cleaved caspase 3 and frequency of TUNEL+cells simultaneously increased (p<0.05). Immunofluorescence showed macrophages were the principal source of HO-1 in human and mouse IR-stressed livers. In vitro macrophage cultures revealed that HO-1 induction positively regulated SIRT1 signaling, whereas SIRT1-induced Arf inhibited ubiquitinating activity of MDM2 against p53, which in turn attenuated macrophage activation. In a murine model of hepatic warm IRI, myeloid-specific HO-1 deletion lacked SIRT1/p53, exacerbated liver inflammation and IR-hepatocellular death, whereas adjunctive SIRT1 activation restored p53 signaling and rescued livers from IR-damage. CONCLUSION This bench-to-bedside study identifies a new class of macrophages activated via the HO-1-SIRT1-p53 signaling axis in the mechanism of hepatic sterile inflammation. This mechanism could be a target for novel therapeutic strategies in liver transplant recipients. LAY SUMMARY Post-transplant low macrophage HO-1 expression in human liver transplants correlates with reduced hepatocellular function and survival. HO-1 regulates macrophage activation via the SIRT1-p53 signaling network and regulates hepatocellular death in liver ischemia-reperfusion injury. Thus targeting this pathway in liver transplant recipients could be of therapeutic benefit.
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Affiliation(s)
- Kojiro Nakamura
- The Dumont-UCLA Transplantation Center, Department of Surgery, Division of Liver and Pancreas Transplantation, David Geffen School of Medicine at University of California, Los Angeles, CA 90095, USA
| | - Min Zhang
- Department of Medicine, Division of Cardiology, David Geffen School of Medicine at University of California, Los Angeles, CA 90095, USA
| | - Shoichi Kageyama
- The Dumont-UCLA Transplantation Center, Department of Surgery, Division of Liver and Pancreas Transplantation, David Geffen School of Medicine at University of California, Los Angeles, CA 90095, USA
| | - Bibo Ke
- The Dumont-UCLA Transplantation Center, Department of Surgery, Division of Liver and Pancreas Transplantation, David Geffen School of Medicine at University of California, Los Angeles, CA 90095, USA
| | - Takehiro Fujii
- The Dumont-UCLA Transplantation Center, Department of Surgery, Division of Liver and Pancreas Transplantation, David Geffen School of Medicine at University of California, Los Angeles, CA 90095, USA
| | - Rebecca A. Sosa
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at University of California, Los Angeles, CA 90095, USA
| | - Elaine F. Reed
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at University of California, Los Angeles, CA 90095, USA
| | - Nakul Datta
- The Dumont-UCLA Transplantation Center, Department of Surgery, Division of Liver and Pancreas Transplantation, David Geffen School of Medicine at University of California, Los Angeles, CA 90095, USA
| | - Ali Zarrinpar
- The Dumont-UCLA Transplantation Center, Department of Surgery, Division of Liver and Pancreas Transplantation, David Geffen School of Medicine at University of California, Los Angeles, CA 90095, USA
| | - Ronald W. Busuttil
- The Dumont-UCLA Transplantation Center, Department of Surgery, Division of Liver and Pancreas Transplantation, David Geffen School of Medicine at University of California, Los Angeles, CA 90095, USA
| | - Jesus A. Araujo
- Department of Medicine, Division of Cardiology, David Geffen School of Medicine at University of California, Los Angeles, CA 90095, USA,Corresponding authors. Addresses: Dumont-UCLA Transplant Center, 10833 Le Conte Ave, 77-120 CHS, Los Angeles, CA 90095, USA. Tel.: +1 (310) 825 4196; fax: +1 (310) 267 2358 (J.W. Kupiec-Weglinski) and UCLA Division of Cardiology, 10833 Le Conte Ave, CHS 43-264, Los Angeles, CA 90095, USA. Tel.: +1 (310) 825 3222; fax: +1 (310) 206 9133 (J.A. Araujo). (J.A. Araujo), (J.W. Kupiec-Weglinski)
| | - Jerzy W. Kupiec-Weglinski
- The Dumont-UCLA Transplantation Center, Department of Surgery, Division of Liver and Pancreas Transplantation, David Geffen School of Medicine at University of California, Los Angeles, CA 90095, USA,Corresponding authors. Addresses: Dumont-UCLA Transplant Center, 10833 Le Conte Ave, 77-120 CHS, Los Angeles, CA 90095, USA. Tel.: +1 (310) 825 4196; fax: +1 (310) 267 2358 (J.W. Kupiec-Weglinski) and UCLA Division of Cardiology, 10833 Le Conte Ave, CHS 43-264, Los Angeles, CA 90095, USA. Tel.: +1 (310) 825 3222; fax: +1 (310) 206 9133 (J.A. Araujo). (J.A. Araujo), (J.W. Kupiec-Weglinski)
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28
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Zeng C, Hu X, He W, Wang Y, Li L, Xiong Y, Ye Q. Hypothermic machine perfusion ameliorates inflammation during ischemia‑reperfusion injury via sirtuin‑1‑mediated deacetylation of nuclear factor‑κB p65 in rat livers donated after circulatory death. Mol Med Rep 2017; 16:8649-8656. [PMID: 29039506 PMCID: PMC5779933 DOI: 10.3892/mmr.2017.7738] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Accepted: 07/13/2017] [Indexed: 12/11/2022] Open
Abstract
Hypothermic machine perfusion (HMP) effectively reduces ischemia-reperfusion injury (IRI) in livers donated after circulatory death (DCD) when compared with cold storage (CS). However, the underlying mechanisms remain unclear. The current study aimed to investigate the cellular mechanisms by which HMP ameliorates the inflammatory response during IRI. Adult male Sprague-Dawley rat livers were exposed to 30 min of warm ischemia following cardiac arrest and preserved by CS or HMP for 3 h (n=3 per group). The severity of IRI was assessed in vitro on normothermic reperfusion for 2 h, and intrahepatic resistance (IHR) and bile production were subsequently recorded. The perfusate was analyzed for transaminase leakage and oxygen consumption. Livers were subsequently subjected to histological examination, and measurement of adenosine triphosphate (ATP) levels, malondialdehyde (MDA) content, superoxide dismutase (SOD) activity, nicotinamide adenine dinucleotide (NAD)+ levels and the ratio of NAD+/NADH. In addition, the protein expression of sirtuin-1 (SIRT-1), acetylated-nuclear factor-κB (NF-κB) p65 and NF-κB p65 was detected by western blotting, and the mRNA expression of the inflammatory cytokines interleukin (IL)-6 and tumor necrosis factor (TNF)-α was determined by reverse transcription-quantitative polymerase chain reaction. Compared with CS, HMP resulted in significantly lower IHR, transaminase leakage and MDA levels, and higher oxygen consumption, ATP levels and SOD activity. In addition, improved preservation of hepatic histology was observed in HMP compared with CS. The mRNA expression of NF-κB p65, IL-6 and TNF-α was significantly decreased in the HMP group compared with CS samples. Under HMP preservation, SIRT-1 activity and protein expression were increased, while the protein expression of acetylated-NF-κB p65 was decreased, compared with CS. These results indicate that HMP may reduce the inflammatory response during IRI via SIRT-1-mediated deacetylation of NF-κB p65. These findings may provide a theoretical basis for the clinical application of HMP as an effective strategy to preserve DCD livers.
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Affiliation(s)
- Cheng Zeng
- Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Xiaoyan Hu
- Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Weiyang He
- Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Yanfeng Wang
- Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Ling Li
- Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Yan Xiong
- Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Qifa Ye
- Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
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29
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Boengler K, Bencsik P, Palóczi J, Kiss K, Pipicz M, Pipis J, Ferdinandy P, Schlüter KD, Schulz R. Lack of Contribution of p66shc and Its Mitochondrial Translocation to Ischemia-Reperfusion Injury and Cardioprotection by Ischemic Preconditioning. Front Physiol 2017; 8:733. [PMID: 29051737 PMCID: PMC5633811 DOI: 10.3389/fphys.2017.00733] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Accepted: 09/08/2017] [Indexed: 12/23/2022] Open
Abstract
Whereas high amounts of reactive oxygen species (ROS) contribute to cardiac damage following ischemia and reperfusion (IR), low amounts function as trigger molecules in the cardioprotection by ischemic preconditioning (IPC). The mitochondrial translocation and contribution of the hydrogen peroxide-generating protein p66shc in the cardioprotection by IPC is unclear yet. In the present study, we investigated the mitochondrial translocation of p66shc, addressed the impact of p66shc on ROS formation after IR, and characterized the role of p66shc in IR injury per se and in the cardioprotection by IPC. The amount of p66shc in subsarcolemmal (SSM) and interfibrillar mitochondria (IFM) isolated from wildtype mouse left ventricles (LV) was determined after 40 min normoxic perfusion and after 30 min ischemia and 10 min reperfusion without and with IPC. The p66shc content in SSM (in % of normoxic controls, n = 5) was 174 ± 16% (n = 6, p < 0.05) after IR, and was reduced to 128 ± 13% after IPC (n = 6, p = ns). In IFM, the amount of p66shc remained unchanged (IR: 81 ± 7%, n = 6; IPC: 110 ± 5%, n = 6, p = ns). IR induced an increase in ROS formation in SSM and IFM isolated from mouse wildtype LV, which was more pronounced in SSM than in IFM (1.18 ± 0.18 vs. 0.81 ± 0.16, n = 6, p < 0.05). In mitochondria from p66shc-knockout mice (p66shc-KO), the increase in ROS formation by IR was not different between SSM and IFM (0.90 ± 0.11 vs. 0.73 ± 0.08, n = 6, p = ns). Infarct size (in % of the left ventricle) was 51.7 ± 2.9% in wildtype and 59.7 ± 3.8% in p66shc-KO hearts in vitro and was significantly reduced to 35.8 ± 4.4% (wildtype) and 34.7 ± 5.6% (p66shc-KO) by IPC, respectively. In vivo, infarct size was 57.8 ± 2.9% following IR (n = 9) and was reduced to 40.3 ± 3.5% by IPC (n = 11, p < 0.05) in wildtype mice. In p66shc-knockout mice, infarct sizes were similar to those measured in wildtype animals (IR: 56.2 ± 4.3%, n = 11; IPC: 42.1 ± 3.9%, n = 13, p < 0.05). Taken together, the mitochondrial translocation of p66shc following IR and IPC differs between mitochondrial populations. However, similar infarct sizes after IR and preserved infarct size reductions by IPC in p66shc-KO mice suggest that p66shc-derived ROS are not involved in the cardioprotection by IPC nor do they contribute to IR injury per se.
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Affiliation(s)
- Kerstin Boengler
- Physiologisches Institut, Justus-Liebig-Universität, Giessen, Germany
| | - Péter Bencsik
- Pharmahungary Group, Szeged, Hungary.,Cardiovascular Research Group, Department of Biochemistry, University of Szeged, Szeged, Hungary
| | - János Palóczi
- Pharmahungary Group, Szeged, Hungary.,Cardiovascular Research Group, Department of Biochemistry, University of Szeged, Szeged, Hungary
| | - Krisztina Kiss
- Pharmahungary Group, Szeged, Hungary.,Cardiovascular Research Group, Department of Biochemistry, University of Szeged, Szeged, Hungary
| | - Márton Pipicz
- Pharmahungary Group, Szeged, Hungary.,Cardiovascular Research Group, Department of Biochemistry, University of Szeged, Szeged, Hungary
| | | | - Péter Ferdinandy
- Pharmahungary Group, Szeged, Hungary.,Cardiovascular Research Group, Department of Biochemistry, University of Szeged, Szeged, Hungary.,Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
| | | | - Rainer Schulz
- Physiologisches Institut, Justus-Liebig-Universität, Giessen, Germany
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Nakamura K, Kageyama S, Ke B, Fujii T, Sosa RA, Reed EF, Datta N, Zarrinpar A, Busuttil RW, Kupiec-Weglinski JW. Sirtuin 1 attenuates inflammation and hepatocellular damage in liver transplant ischemia/Reperfusion: From mouse to human. Liver Transpl 2017; 23:1282-1293. [PMID: 28719070 PMCID: PMC5705033 DOI: 10.1002/lt.24821] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 06/28/2017] [Accepted: 07/09/2017] [Indexed: 12/12/2022]
Abstract
Hepatic ischemia/reperfusion injury (IRI), an inevitable antigen-independent inflammation response in cadaveric liver transplantation, correlates with poor early graft function, rejection episodes, and contributes to donor organ shortage. Sirtuin 1 (SIRT1) is a histone deacetylase that may regulate inflammatory cell activity and manage liver function in IRI, though its functional role and clinical relevance remains to be elucidated. We investigated the efficacy of SIRT1 activation in a murine liver IRI model and verified the concept of putative SIRT1-mediated hepatoprotection in clinical liver transplantation. In the experimental arm, mice were subjected to 90 minutes of liver partial warm ischemia followed by 6 hours of reperfusion with or without adjunctive SIRT1 activation in vivo (resveratrol [Res]). In parallel, bone marrow-derived macrophage (BMDM) or spleen lymphocyte cultures were treated with Res. In the clinical arm, liver biopsies from 21 adult primary liver transplant patients (2 hours after reperfusion) were divided into "low" (n = 11) versus "high" (n = 10) SIRT1 expression groups, assessed by Western blots. Treatment with Res attenuated murine liver IRI while up-regulating SIRT1, suppressing leukocyte infiltration, and decreasing proinflammatory cytokine programs. SIRT1 silencing (small interfering RNA) in BMDM cultures enhanced inflammatory cytokine programs, whereas addition of Res decreased proinflammatory response in a SIRT1-dependent manner. In addition, Res decreased interferon γ production in liver-infiltrating and spleen lymphocyte cultures. Human liver transplants with high SIRT1 levels showed improved hepatocellular function and superior survival (P = 0.04), accompanied by lower proinflammatory cytokine profile. In conclusion, our translational study is the first to identify SIRT1 as a regulator of hepatocellular function in human liver transplant recipients under ischemia/reperfusion stress. By targeting innate and adaptive immune activation, manipulation of SIRT1 signaling should be considered as a novel means to combat inflammation in liver transplantation. Liver Transplantation 23 1282-1293 2017 AASLD.
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Affiliation(s)
- Kojiro Nakamura
- Dumont-UCLA Transplant Center, Department of Surgery, Division of Liver and Pancreas Transplantation, University of California, Los Angeles, Los Angeles, CA
| | - Shoichi Kageyama
- Dumont-UCLA Transplant Center, Department of Surgery, Division of Liver and Pancreas Transplantation, University of California, Los Angeles, Los Angeles, CA
| | - Bibo Ke
- Dumont-UCLA Transplant Center, Department of Surgery, Division of Liver and Pancreas Transplantation, University of California, Los Angeles, Los Angeles, CA
| | - Takehiro Fujii
- Dumont-UCLA Transplant Center, Department of Surgery, Division of Liver and Pancreas Transplantation, University of California, Los Angeles, Los Angeles, CA
| | - Rebecca A. Sosa
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, University of California, Los Angeles, Los Angeles, CA
| | - Elaine F. Reed
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, University of California, Los Angeles, Los Angeles, CA
| | - Nakul Datta
- Dumont-UCLA Transplant Center, Department of Surgery, Division of Liver and Pancreas Transplantation, University of California, Los Angeles, Los Angeles, CA
| | - Ali Zarrinpar
- Dumont-UCLA Transplant Center, Department of Surgery, Division of Liver and Pancreas Transplantation, University of California, Los Angeles, Los Angeles, CA
| | - Ronald W. Busuttil
- Dumont-UCLA Transplant Center, Department of Surgery, Division of Liver and Pancreas Transplantation, University of California, Los Angeles, Los Angeles, CA
| | - Jerzy W. Kupiec-Weglinski
- Dumont-UCLA Transplant Center, Department of Surgery, Division of Liver and Pancreas Transplantation, University of California, Los Angeles, Los Angeles, CA
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Vagus Nerve Attenuates Hepatocyte Apoptosis upon Ischemia-Reperfusion via α7 Nicotinic Acetylcholine Receptor on Kupffer Cells in Mice. Anesthesiology 2017; 125:1005-1016. [PMID: 27560466 DOI: 10.1097/aln.0000000000001309] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND Hepatic ischemia-reperfusion (HIR) injury is a complication of liver surgery. As much as 50% of hepatocytes undergo apoptosis within the first 24 h of reperfusion. The neurotransmitters of the vagus nerve can activate α7 nicotinic acetylcholine receptor (α7nAChR) on macrophages. The function of Kupffer cells (KCs) determines HIR injury. We hypothesize that the vagus nerve could attenuate HIR-induced hepatocyte apoptosis by activating α7nAChR on KCs. METHODS Hepatic vagotomized C57BL/6J mice, KC-eliminated C57BL/6J mice, and α7nAChR mice were used for HIR. Primary KCs and hepatocytes were subjected to hypoxia/reoxygenation (HR). Liver injury, hepatocyte apoptosis, reactive oxygen species (ROS) production, and soluble CD163 were measured. RESULTS Hepatic vagotomy and α7nAChR caused higher levels of alanine transaminase and liver caspase-3 and -8 activity by HIR. Activating α7nAChR attenuated these changes in wild-type but not in the α7nAChR mice. Furthermore, activating α7nAChR diminished hepatic injury and reduced liver apoptosis by HIR in vagotomized mice. In vitro, activating α7nAChR reduced apoptosis of hepatocytes cocultured with KCs that suffered HR. Similar to the effects by catalase, activating α7nAChR on KCs reduced ROS and H2O2 by HR. The supernatant from KCs, with α7nAChR activated or catalase treated, prevented hepatocyte apoptosis by HR. Finally, KC elimination reduced HIR-induced H2O2 production in mice. Activating α7nAChR significantly attenuated soluble CD163 both in mice by HIR (serum: 240 ± 34 vs. 446 ± 72; mean ± SD; n = 8; P < 0.01) and in KCs by HR (supernatant: 4.23 ± 0.06 vs. 5.60 ± 0.18; n = 3; P < 0.01). CONCLUSIONS The vagus nerve could minimize HIR-induced liver apoptosis through activating α7nAChR on KCs possibly by preventing their excessive ROS production.
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Sirtuin 1 Stimulation Attenuates Ischemic Liver Injury and Enhances Mitochondrial Recovery and Autophagy. Crit Care Med 2017; 44:e651-63. [PMID: 26963320 DOI: 10.1097/ccm.0000000000001637] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
OBJECTIVES Hepatic ischemia-reperfusion is a major clinical problem with limited treatment options. The pathophysiology of hepatic ischemia-reperfusion is characterized by mitochondrial dysfunction and cellular energy deficits. Sirtuin 1 is an energy-sensing enzyme known to modulate mitochondrial biogenesis. We hypothesized that pharmacologic activation of sirtuin 1 is protective after hepatic ischemia-reperfusion injury. DESIGN Animal study. SETTING University-based experimental laboratory. SUBJECTS Wild-type C57BL/6 mice. INTERVENTIONS C57BL/6 mice were subjected to 60-minute partial hepatic ischemia-reperfusion and posttreated with sirtuin 1 activator, SRT1720 (20 mg/kg), or vehicle. Blood and liver were collected at 24 hours after ischemia-reperfusion for analyses of hepatic injury, adenosine triphosphate levels, mitochondrial mass, autophagy, inflammation, and oxidative stress. H4IIE hepatoma cells and rat primary hepatocytes were incubated with oxyrase to induce hypoxia followed by reoxygenation in the presence or absence of SRT1720 for assessment of mitochondrial mass, mitochondrial membrane potential, and autophagy. MEASUREMENTS AND MAIN RESULTS SRT1720 restored the reduction in mitochondrial mass, enhanced autophagy, and preserved adenosine triphosphate levels in the liver after ischemia-reperfusion, which was associated with a decrease in ischemia-reperfusion-induced hepatic injury, apoptosis, and necrosis. Ischemia-reperfusion-induced inflammation was also significantly reduced by SRT1720 as measured by systemic and hepatic cytokine and chemokine levels, as well as a decrease in neutrophil infiltration to the liver. Furthermore, oxidative stress was markedly attenuated in the SRT1720-treated mice compared with the vehicle. SRT1720 treatment increased adenosine triphosphate levels and survival of cultured hepatocytes after hypoxia-reoxygenation. SRT1720 not only increased the mitochondrial mass but also increased mitochondrial membrane potential per cell in cultured hepatocytes after hypoxia-reoxygenation. Moreover, SRT1720 prevented the hypoxia-reoxygenation-induced mitochondrial depolarization and resulted in an enhancement of autophagy in cultured hepatocytes after hypoxia-reoxygenation. CONCLUSIONS Pharmacologic stimulation of sirtuin 1 attenuates liver injury after hepatic ischemia-reperfusion by restoring mitochondrial mass and membrane potential, which is associated with the enhancement of autophagy.
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Lesnefsky EJ, Chen Q, Hoppel CL. Mitochondrial Metabolism in Aging Heart. Circ Res 2017; 118:1593-611. [PMID: 27174952 DOI: 10.1161/circresaha.116.307505] [Citation(s) in RCA: 216] [Impact Index Per Article: 30.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Accepted: 04/05/2016] [Indexed: 02/07/2023]
Abstract
Altered mitochondrial metabolism is the underlying basis for the increased sensitivity in the aged heart to stress. The aged heart exhibits impaired metabolic flexibility, with a decreased capacity to oxidize fatty acids and enhanced dependence on glucose metabolism. Aging impairs mitochondrial oxidative phosphorylation, with a greater role played by the mitochondria located between the myofibrils, the interfibrillar mitochondria. With aging, there is a decrease in activity of complexes III and IV, which account for the decrease in respiration. Furthermore, aging decreases mitochondrial content among the myofibrils. The end result is that in the interfibrillar area, there is ≈50% decrease in mitochondrial function, affecting all substrates. The defective mitochondria persist in the aged heart, leading to enhanced oxidant production and oxidative injury and the activation of oxidant signaling for cell death. Aging defects in mitochondria represent new therapeutic targets, whether by manipulation of the mitochondrial proteome, modulation of electron transport, activation of biogenesis or mitophagy, or the regulation of mitochondrial fission and fusion. These mechanisms provide new ways to attenuate cardiac disease in elders by preemptive treatment of age-related defects, in contrast to the treatment of disease-induced dysfunction.
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Affiliation(s)
- Edward J Lesnefsky
- From the Division of Cardiology, Department of Medicine, Pauley Heart Center (E.J.L, Q.C.), Departments of Biochemistry and Molecular Biology and Physiology and Biophsyics (E.J.L.), Virginia Commonwealth University, Richmond, VA (E.J.L., Q.C.); Medical Service, McGuire Veterans Affairs Medical Center, Richmond, VA (E.J.L.); and Departments of Pharmacology (C.L.H.) and Medicine (E.J.L., C.L.H.), Center for Mitochondrial Disease (C.L.H.), Case Western Reserve University, School of Medicine, Cleveland, OH
| | - Qun Chen
- From the Division of Cardiology, Department of Medicine, Pauley Heart Center (E.J.L, Q.C.), Departments of Biochemistry and Molecular Biology and Physiology and Biophsyics (E.J.L.), Virginia Commonwealth University, Richmond, VA (E.J.L., Q.C.); Medical Service, McGuire Veterans Affairs Medical Center, Richmond, VA (E.J.L.); and Departments of Pharmacology (C.L.H.) and Medicine (E.J.L., C.L.H.), Center for Mitochondrial Disease (C.L.H.), Case Western Reserve University, School of Medicine, Cleveland, OH
| | - Charles L Hoppel
- From the Division of Cardiology, Department of Medicine, Pauley Heart Center (E.J.L, Q.C.), Departments of Biochemistry and Molecular Biology and Physiology and Biophsyics (E.J.L.), Virginia Commonwealth University, Richmond, VA (E.J.L., Q.C.); Medical Service, McGuire Veterans Affairs Medical Center, Richmond, VA (E.J.L.); and Departments of Pharmacology (C.L.H.) and Medicine (E.J.L., C.L.H.), Center for Mitochondrial Disease (C.L.H.), Case Western Reserve University, School of Medicine, Cleveland, OH.
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Xu T, Zhou J, Zhu J, Zhang S, Zhang N, Zhao Y, Ding C, Shi X, Yao J. Carnosic acid protects non-alcoholic fatty liver-induced dopaminergic neuron injury in rats. Metab Brain Dis 2017; 32:483-491. [PMID: 27957651 DOI: 10.1007/s11011-016-9941-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 12/07/2016] [Indexed: 02/06/2023]
Abstract
Non-alcoholic fatty liver disease (NAFLD) has been reported to induce cognitive impairments of hippocampus and may influence central nervous system. In the present study, we investigated whether carnosic acid (CA) ameliorates dopaminergic neuron injury in a rat model of NAFLD. In order to induce NAFLD, rats were fed with high-fat diet (HFD) for 10 weeks. We found that continued CA administration reduced lipid accumulation marked by decreases in alanine aminotransferase (ALT), aspartate aminotransferase (AST), triglyceride (TG), total cholesterol (TC) and low-density lipoprotein cholesterol (LDL-C) levels, and an increase in high-density lipoprotein cholesterol (HDL-C) level in the serum. H&E staining revealed that feeding CA reduced lipid droplets accumulation, and alleviated oxidative stress by increasing in superoxide dismutase (SOD) level and decreasing in malondialdehyde (MDA) level in the liver. In addition, by measuring several parameters of gait analysis, we demonstrated that CA treatment ameliorated behavioral impairments, as evidenced by decreased duration and maximum variation, accompanied by increased average speed and cadence. Furthermore, CA treated-animals displayed an increase in the contents of dopamine (DA) and its metabolites 3,4-dihydroxyphenylacelic acid (DOPAC) and elevated the expressions of tyrosine hydroxylase (TH)-positive neurons in the substantia nigra (SN) as well as the TH protein in the striatum. Together, these findings suggest that CA may be an effective agent in protecting rats from NAFLD-induced dopaminergic neuron injury.
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Affiliation(s)
- Ting Xu
- Department of Pharmacology, Dalian Medical University, Dalian, 116044, People's Republic of China
| | - Junjun Zhou
- Department of Pharmacology, Dalian Medical University, Dalian, 116044, People's Republic of China.
| | - Jie Zhu
- Department of Pharmacology, Dalian Medical University, Dalian, 116044, People's Republic of China
| | - Shuai Zhang
- Department of Pharmacology, Dalian Medical University, Dalian, 116044, People's Republic of China
| | - Ning Zhang
- Department of Pharmacology, Dalian Medical University, Dalian, 116044, People's Republic of China
- Department of Pharmacy, Second Affiliated Hospital of Dalian Medical University, Dalian, 116023, People's Republic of China
| | - Yan Zhao
- Department of Pharmacology, Dalian Medical University, Dalian, 116044, People's Republic of China
| | - Chunchun Ding
- Department of Pharmacology, Dalian Medical University, Dalian, 116044, People's Republic of China
| | - Xue Shi
- Department of Pharmacology, Dalian Medical University, Dalian, 116044, People's Republic of China
| | - Jihong Yao
- Department of Pharmacology, Dalian Medical University, Dalian, 116044, People's Republic of China.
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Lian M, Sun Y, Lin Y, Wen J, Almoiliqy M, Xu B, Li Y, Xu M, Chen D, Tang Z, Wang L. p-JAK2 plays a key role in catalpol-induced protection against rat intestinal ischemia/reperfusion injury. RSC Adv 2017. [DOI: 10.1039/c7ra10506a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Catalpol attenuated rat intestinal I/R injury by decreasing mitochondria-mediated apoptosis through blocking the JAK2/STAT3 signaling pathwayviaselective inhibition of p-JAK2.
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Affiliation(s)
- Mengqiao Lian
- Pharmaceutical College
- Dalian Medical University
- Dalian
- China
| | - Yuchao Sun
- Pharmaceutical College
- Dalian Medical University
- Dalian
- China
| | - Yuan Lin
- Pharmaceutical College
- Dalian Medical University
- Dalian
- China
- Zhongshan College
| | - Jin Wen
- Pharmaceutical College
- Dalian Medical University
- Dalian
- China
| | | | - Bin Xu
- Pharmaceutical College
- Dalian Medical University
- Dalian
- China
| | - Yanli Li
- Pharmaceutical College
- Dalian Medical University
- Dalian
- China
| | - Ming Xu
- Pharmaceutical College
- Dalian Medical University
- Dalian
- China
| | - Dapeng Chen
- Laboratory Animal Center
- Dalian Medical University
- Dalian
- China
| | - Zeyao Tang
- Pharmaceutical College
- Dalian Medical University
- Dalian
- China
| | - Li Wang
- Pharmaceutical College
- Dalian Medical University
- Dalian
- China
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Lou K, Yang M, Duan E, Zhao J, Yu C, Zhang R, Zhang L, Zhang M, Xiao Z, Hu W, He Z. Rosmarinic acid stimulates liver regeneration through the mTOR pathway. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2016; 23:1574-1582. [PMID: 27823621 DOI: 10.1016/j.phymed.2016.09.010] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Revised: 09/14/2016] [Accepted: 09/28/2016] [Indexed: 05/27/2023]
Abstract
BACKGROUND Rosemary (Rosmarinus offcinsalis L) has a liver protection function under various conditions of liver damage. Rosmarinic acid, one of the pharmacological constituents of rosemary, exhibited protective effects against organ injury, including acute liver injury. HYPOTHESIS We hypothesize that RA stimulates liver regeneration. STUDY DESIGN In the present study, we investigated the effects and mechanism of RA administration on liver regeneration using partial hepatectomy (PH), a well-validated liver regeneration model in mice. METHODS We use a 2/3 partial hepatectomy (PH) model to induce liver regeneration. RA was administered prior to and simultaneously with PH. The regeneration process was estimated by the index of the liver to body weight (ILBW) and the expression of proliferating cell nuclear antigen (PCNA) and liver transaminases. RESULTS The administration of rosmarinic acid stimulated hepatocyte proliferation based on activation of the mTOR/S6K pathway. Rosmarinic acid treatment also rescued impaired liver function due to PH. CONCLUSION These data demonstrate that RA is potentially useful to promote liver regeneration.
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Affiliation(s)
- Kaihan Lou
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China; Yunnan Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Molecular and Clinical Medicine, Kunming Medical University, Kunming 650500, China
| | - Min Yang
- Yunnan Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Molecular and Clinical Medicine, Kunming Medical University, Kunming 650500, China
| | - Erdan Duan
- Yunnan Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Molecular and Clinical Medicine, Kunming Medical University, Kunming 650500, China
| | - Jiahui Zhao
- Yunnan Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Molecular and Clinical Medicine, Kunming Medical University, Kunming 650500, China
| | - Cong Yu
- Yunnan Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Molecular and Clinical Medicine, Kunming Medical University, Kunming 650500, China
| | - Rongping Zhang
- Biomedical Engineering Research Centre, Kunming Medical University, Kunming 650500, China
| | - Lanchun Zhang
- Biomedical Engineering Research Centre, Kunming Medical University, Kunming 650500, China
| | - Ming Zhang
- Yunnan Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Molecular and Clinical Medicine, Kunming Medical University, Kunming 650500, China
| | - Zhicheng Xiao
- Yunnan Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Molecular and Clinical Medicine, Kunming Medical University, Kunming 650500, China; Department of Anatomy and Developmental Biology, Monash University, Clayton, Melbourne 3800, Australia
| | - Weiyan Hu
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming 650500, China; Yunnan Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Molecular and Clinical Medicine, Kunming Medical University, Kunming 650500, China.
| | - Zhiyong He
- Yunnan Key Laboratory of Stem Cell and Regenerative Medicine, Institute of Molecular and Clinical Medicine, Kunming Medical University, Kunming 650500, China; Department of Anatomy and Developmental Biology, Monash University, Clayton, Melbourne 3800, Australia.
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Kong X, Guan J, Li J, Wei J, Wang R. P66 Shc-SIRT1 Regulation of Oxidative Stress Protects Against Cardio-cerebral Vascular Disease. Mol Neurobiol 2016; 54:5277-5285. [PMID: 27578018 DOI: 10.1007/s12035-016-0073-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Accepted: 08/18/2016] [Indexed: 10/21/2022]
Abstract
Growing evidence shows that acute and chronic overproduction of reactive oxygen species (ROS) and increased oxidants under pathophysiologic circumstances are of vital importance in the development of cardio-cerebral vascular diseases (CCVDs). It has been revealed that the impact of ROS can be suppressed by sirtuin 1 (SIRT1), a member of the highly conserved nicotinamide adenine dinucleotide-dependent class III histone deacetylases through protecting endothelial cells from oxidative injury. Plenty of evidences indicate that p66Shc stimulates mitochondrial ROS generation through its oxidoreductase activity and plays a vital role in the pathophysiology of CCVDs. The link between SIRT and p66Shc, though not very clear yet, may be generally illustrated like this: SIRT1 negatively regulates the expression of p66Shc in transcriptional level. In this review, the authors aimed to discuss the link between the pathogenesis of CCVDs, the regulation of ROS, the interrelation between SIRT1 and p66Shc, and the protective effect of the proper regulation of p66Shc/SIRT1 on CCVDs. The imbalance between the elimination and production of ROS can lead to oxidative stress (OS). More and more evidence suggest that ROS pathological overproduction is closely connected to the genesis and growth of CCVDs. P66shc is a gene that controls ROS level, apoptosis induction, and lifespan. Lots of evidence also indicate a role for SIRT1 mediating OS responses through several ways including directly deacetylating some transcription factors that control anti-OS genes. SIRT1 downregulation can lead to a decreased deacetylation of p66shc gene promoter and can then result in p66shc transcription. SIRT1 binds to the promoter of p66Shc where it can deacetylate histone H3, which weakens the transcription and translation of p66shc.
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Affiliation(s)
- Xiangyi Kong
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, No. 1 Shuaifuyuan, Dongcheng District, Beijing, 100730, People's Republic of China.,Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Harvard University, 55 Fruit Street, Boston, MA, 02114-3117, USA
| | - Jian Guan
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, No. 1 Shuaifuyuan, Dongcheng District, Beijing, 100730, People's Republic of China
| | - Jun Li
- Department of Neurosurgery, Tangshan Gongren Hospital, Hebei Medical University, 27 Wenhua Road, Tangshan, 063000, People's Republic of China
| | - Junji Wei
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, No. 1 Shuaifuyuan, Dongcheng District, Beijing, 100730, People's Republic of China
| | - Renzhi Wang
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, No. 1 Shuaifuyuan, Dongcheng District, Beijing, 100730, People's Republic of China.
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Protective Effect of the Total Flavonoids from Rosa laevigata Michx Fruit on Renal Ischemia-Reperfusion Injury through Suppression of Oxidative Stress and Inflammation. Molecules 2016; 21:molecules21070952. [PMID: 27455216 PMCID: PMC6272996 DOI: 10.3390/molecules21070952] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Revised: 07/09/2016] [Accepted: 07/19/2016] [Indexed: 01/20/2023] Open
Abstract
Renal ischemia-reperfusion injury (IRI) is a major cause of acute kidney injury (AKI). Our previous studies have shown that the total flavonoids (TFs) from Rosa laevigata Michx fruit has various activities, however, there were no papers reporting the role of the TFs against renal IRI. In the present work, a hypoxia/reoxygenation (H/R) model in NRK-52E cells and ischemia-reperfusion model in rats were used. The results showed that the TFs significantly attenuated cell injury and markedly decreased serum creatinine (Cr) and blood urea nitrogen (BUN) levels in rats. Further investigation revealed that the TFs markedly decreased the levels of malondialdehyde (MDA), superoxide dismutase (SOD), glutathione (GSH) and glutathione peroxidase (GSH-Px) and intracellular reactive oxygen species (ROS), up-regulated the levels of silent information regulator factor 2-related enzyme 1 (Sirt1), nuclear factor erythroid 2-related factor-2 (Nrf2) and heme oxygenase-1 (HO-1), down-regulated the levels of Kelch like ECH-associated protein-1 (Keap1) and the nuclear translocation of nuclear factor-κBp65 (NF-κBp65), and decreased the mRNA levels of interleukine-1β (IL-1β), interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α). Furthermore, inhibiting Sirt1 by siRNA showed that the role of the natural product in protecting renal IRI was significantly attenuated, suggesting that the effect of the extract against renal IRI depended on Sirt1. Taken together, the TFs has significantly nephroprotective effect against IRI by affecting Sirt1/Nrf2/NF-κB signaling pathway, which should be developed as a new therapeutic agent or food additives to treat acute kidney injury in the future.
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Gao L, Shan W, Zeng W, Hu Y, Wang G, Tian X, Zhang N, Shi X, Zhao Y, Ding C, Zhang F, Liu K, Yao J. Carnosic acid alleviates chronic alcoholic liver injury by regulating the SIRT1/ChREBP and SIRT1/p66shc pathways in rats. Mol Nutr Food Res 2016; 60:1902-11. [PMID: 27125489 DOI: 10.1002/mnfr.201500878] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Revised: 03/29/2016] [Accepted: 03/31/2016] [Indexed: 12/13/2022]
Affiliation(s)
- Lili Gao
- Department of Pharmacology; Dalian Medical University; Dalian China
| | - Wen Shan
- Department of Pharmacology; Dalian Medical University; Dalian China
- Department of Pharmacy; Second Affiliated Hospital of Dalian Medical University; Dalian China
| | - Wenjing Zeng
- Department of Pharmacology; Dalian Medical University; Dalian China
| | - Yan Hu
- Department of Pharmacy; Second Affiliated Hospital of Dalian Medical University; Dalian China
| | - Guangzhi Wang
- Department of General Surgery; Second Affiliated Hospital of Dalian Medical University; Dalian China
| | - Xiaofeng Tian
- Department of General Surgery; Second Affiliated Hospital of Dalian Medical University; Dalian China
| | - Ning Zhang
- Department of Pharmacy; Second Affiliated Hospital of Dalian Medical University; Dalian China
| | - Xue Shi
- Department of Pharmacology; Dalian Medical University; Dalian China
| | - Yan Zhao
- Department of Pharmacology; Dalian Medical University; Dalian China
| | - Chunchun Ding
- Department of Pharmacology; Dalian Medical University; Dalian China
| | - Feng Zhang
- Department of General Surgery; Second Affiliated Hospital of Dalian Medical University; Dalian China
| | - Kexin Liu
- Department of Pharmacology; Dalian Medical University; Dalian China
| | - Jihong Yao
- Department of Pharmacology; Dalian Medical University; Dalian China
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Wang G, Yao J, Li Z, Zu G, Feng D, Shan W, Li Y, Hu Y, Zhao Y, Tian X. miR-34a-5p Inhibition Alleviates Intestinal Ischemia/Reperfusion-Induced Reactive Oxygen Species Accumulation and Apoptosis via Activation of SIRT1 Signaling. Antioxid Redox Signal 2016; 24:961-73. [PMID: 26935288 DOI: 10.1089/ars.2015.6492] [Citation(s) in RCA: 87] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
AIMS Reactive oxygen species (ROS) generation and massive epithelial apoptosis are critical in the pathogenesis of intestinal ischemia/reperfusion (I/R) injury. We previously found that the Sirtuin 1 (SIRT1)-mediated antioxidant pathway was impaired in the intestine after I/R. Here, we investigate the potential role of SIRT1-targeting microRNAs (miRNAs) in regulating ROS accumulation and apoptosis in intestinal I/R, and the important role SIRT1 involved in. RESULTS C57BL/6 mice were subjected to intestinal I/R induced by occlusion of the superior mesenteric artery followed by reperfusion. Caco-2 cells were incubated under hypoxia/reoxygenation condition to mimic I/R in vivo. We find that SIRT1 is gradually repressed during the early reperfusion, and that this repression results in intestinal ROS accumulation and apoptosis. Using bioinformatics analysis and real-time PCR, we demonstrate that miR-34a-5p and miR-495-3p are significantly increased among the 41 putative miRNAs that can target SIRT1. Inhibition of miR-34a-5p, but not miR-495-3p, attenuates intestinal I/R injury, as demonstrated by repressing p66shc upregulation, manganese superoxide dismutase repression, and the caspase-3 activation in vitro and in vivo; it further alleviates systemic injury, as demonstrated by reducing inflammatory cytokine release, attenuating lung and liver lesions, and improving survival. Interestingly, SIRT1 plays an indispensable role in the protection afforded by miR-34a-5p inhibition. INNOVATION This study provides the first evidence of miRNAs in regulating oxidative stress and apoptosis in intestinal I/R. CONCLUSION miR-34a-5p knockdown attenuates intestinal I/R injury through promoting SIRT1-mediated suppression of epithelial ROS accumulation and apoptosis. This may represent a novel prophylactic approach to intestinal I/R injury. Antioxid. Redox Signal. 24, 961-973.
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Affiliation(s)
- Guangzhi Wang
- 1 Department of General Surgery, The Second Hospital of Dalian Medical University , Dalian, China
| | - Jihong Yao
- 2 Department of Pharmacology, Dalian Medical University , Dalian, China
| | - Zhenlu Li
- 1 Department of General Surgery, The Second Hospital of Dalian Medical University , Dalian, China
| | - Guo Zu
- 1 Department of General Surgery, The Second Hospital of Dalian Medical University , Dalian, China
| | - Dongcheng Feng
- 1 Department of General Surgery, The Second Hospital of Dalian Medical University , Dalian, China
| | - Wen Shan
- 2 Department of Pharmacology, Dalian Medical University , Dalian, China
| | - Yang Li
- 1 Department of General Surgery, The Second Hospital of Dalian Medical University , Dalian, China
| | - Yan Hu
- 2 Department of Pharmacology, Dalian Medical University , Dalian, China
| | - Yongfu Zhao
- 1 Department of General Surgery, The Second Hospital of Dalian Medical University , Dalian, China
| | - Xiaofeng Tian
- 1 Department of General Surgery, The Second Hospital of Dalian Medical University , Dalian, China
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Lin X, Wang D. Protective role of carnosic acid against liver injury. Hepatol Res 2016; 46:607. [PMID: 26514986 DOI: 10.1111/hepr.12589] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Accepted: 09/07/2015] [Indexed: 12/13/2022]
Affiliation(s)
- Xiang Lin
- The Second Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Disheng Wang
- The Second Affiliated Hospital of Bengbu Medical College, Bengbu, China
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Yang Y, Zhang S, Fan C, Yi W, Jiang S, Di S, Ma Z, Hu W, Deng C, Lv J, Li T, Nie Y, Jin Z. Protective role of silent information regulator 1 against hepatic ischemia: effects on oxidative stress injury, inflammatory response, and MAPKs. Expert Opin Ther Targets 2016; 20:519-31. [PMID: 26864795 DOI: 10.1517/14728222.2016.1153067] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
OBJECTIVE Previous studies have verified that silent information regulator 1 (SIRT1), a class III histone deacetylase, protects against ischemia reperfusion (IR) injury (IRI) in some organs. In this study, we examined whether SIRT1 could protect against hepatic IRI and explored the potential mechanisms. RESEARCH DESIGN AND METHODS We examined whether SIRT1 could protect against hepatic IRI in vivo and in vitro using hepatic-specific SIRT1(-/-) mice, SIRT1 siRNA-transfected hepatocytes and SIRT1(+/+) hepatocytes. RESULTS The expression and activity of SIRT1 were significantly reduced during reperfusion compared with that observed in the control group. Hepatic-specific SIRT1(-/-) mice exhibited significant increase of hepatic damage markers and augment of oxidative stress and inflammatory response compared with control mice. In vitro studies demonstrated similar results. Furthermore, SIRT1 upregulation protects against hepatic IRI, through the overexpression of p-JNK, p-p38MAPK, and p-ERK. The protection of SIRT1 can be effectively reversed by the inhibitors of p38MAPK, JNK, and ERK. CONCLUSION The activation of SIRT1 significantly inhibits the oxidative stress and inflammatory response during hepatic IRI, which can be developed as a novel method to protect against hepatic IRI.
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Affiliation(s)
- Yang Yang
- a Department of Cardiovascular Surgery, Xijing Hospital , The Fourth Military Medical University , Xi'an , China.,b Department of Biomedical Engineering , The Fourth Military Medical University , Xi'an , China
| | - Song Zhang
- c State Key Laboratory of Cancer Biology, Department of Gastroenterology, Xijing Hospital , The Fourth Military Medical University , Xi'an , China
| | - Chongxi Fan
- d Department of Thoracic Surgery , Tangdu Hospital, The Fourth Military Medical University , Xi'an , China
| | - Wei Yi
- a Department of Cardiovascular Surgery, Xijing Hospital , The Fourth Military Medical University , Xi'an , China
| | - Shuai Jiang
- e Department of Aerospace Medicine , The Fourth Military Medical University , Xi'an , China
| | - Shouyi Di
- c State Key Laboratory of Cancer Biology, Department of Gastroenterology, Xijing Hospital , The Fourth Military Medical University , Xi'an , China
| | - Zhiqiang Ma
- c State Key Laboratory of Cancer Biology, Department of Gastroenterology, Xijing Hospital , The Fourth Military Medical University , Xi'an , China
| | - Wei Hu
- b Department of Biomedical Engineering , The Fourth Military Medical University , Xi'an , China
| | - Chao Deng
- a Department of Cardiovascular Surgery, Xijing Hospital , The Fourth Military Medical University , Xi'an , China
| | - Jianjun Lv
- b Department of Biomedical Engineering , The Fourth Military Medical University , Xi'an , China
| | - Tian Li
- b Department of Biomedical Engineering , The Fourth Military Medical University , Xi'an , China
| | - Yongzhan Nie
- d Department of Thoracic Surgery , Tangdu Hospital, The Fourth Military Medical University , Xi'an , China
| | - Zhenxiao Jin
- a Department of Cardiovascular Surgery, Xijing Hospital , The Fourth Military Medical University , Xi'an , China
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Carnosic acid attenuates neuropathic pain in rat through the activation of spinal sirtuin1 and down-regulation of p66shc expression. Neurochem Int 2016; 93:95-102. [DOI: 10.1016/j.neuint.2016.01.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 12/30/2015] [Accepted: 01/18/2016] [Indexed: 11/22/2022]
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Tian X, Hu Y, Li M, Xia K, Yin J, Chen J, Liu Z. Carnosic acid attenuates acute ethanol-induced liver injury via a SIRT1/p66Shc-mediated mitochondrial pathway. Can J Physiol Pharmacol 2015; 94:416-25. [PMID: 26845416 DOI: 10.1139/cjpp-2015-0276] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Ethanol-induced liver injury is associated with oxidative stress and hepatocyte apoptosis. We previously demonstrated that SIRT1/p66Shc pathway activation attenuates hepatocyte apoptosis in liver ischemia/reperfusion. The current study aimed to investigate whether carnosic acid (CA), a natural antioxidant, can inhibit acute ethanol-induced apoptosis of hepatocytes and to determine the effect of SIRT1/p66Shc on this process. Our results showed that CA pretreatment significantly reduced ethanol-induced histologic damage, serum aminotransferase activity, and oxidative stress in rats. Importantly, CA pretreatment increased SIRT1 expression following ethanol exposure. Furthermore, p66Shc expression was negatively correlated with SIRT1 expression. Consistent with the results demonstrating p66Shc inhibition, CA pretreatment inhibited the release of cytochrome C and apoptosis-inducing factor (AIF) from mitochondria. After exposing L02 cells to ethanol, the increased SIRT1 expression induced by CA was abrogated by pharmacologic SIRT1 inhibition or the use of siRNA against SIRT1. Additionally, SIRT1 inhibition significantly abrogated the suppression of p66Shc expression and mitochondrial translocation induced by CA. Accordingly, CA-induced decreases in the release of cytochrome C and AIF and in mitochondrial apoptosis were nearly abolished by SIRT1 knockdown. These data indicated that CA-activated SIRT1 is protective against ethanol treatment. In summary, CA attenuates acute ethanol-induced liver injury via a SIRT1/p66Shc-mediated mitochondrial pathway.
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Affiliation(s)
- Xinyao Tian
- a Xiangya Hospital, Central South University, Changsha 410008, P.R. China
| | - Yan Hu
- b Department of Pharmacy, Second Affiliated Hospital of Dalian Medical University, Dalian 116027, P.R. China
| | - Mingzhu Li
- c Department of Pharmacology, Dalian Medical University, Dalian 116044, P.R. China
| | - Kun Xia
- a Xiangya Hospital, Central South University, Changsha 410008, P.R. China
| | - Jiye Yin
- d Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha 410008, P.R. China.,e Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha 410078, P.R. China
| | - Juan Chen
- d Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha 410008, P.R. China.,e Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha 410078, P.R. China
| | - Zhaoqian Liu
- d Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha 410008, P.R. China.,e Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, Changsha 410078, P.R. China
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Molecular pathways in protecting the liver from ischaemia/reperfusion injury: a 2015 update. Clin Sci (Lond) 2015; 129:345-62. [PMID: 26014222 DOI: 10.1042/cs20150223] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Ischaemia/reperfusion injury is an important cause of liver damage during surgical procedures such as hepatic resection and liver transplantation, and represents the main cause of graft dysfunction post-transplantation. Molecular processes occurring during hepatic ischaemia/reperfusion are diverse, and continuously include new and complex mechanisms. The present review aims to summarize the newest concepts and hypotheses regarding the pathophysiology of liver ischaemia/reperfusion, making clear distinction between situations of cold and warm ischaemia. Moreover, the most updated therapeutic strategies including pharmacological, genetic and surgical interventions, as well as some of the scientific controversies in the field are described.
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Hu Y, Zhang N, Fan Q, Lin M, Zhang C, Fan G, Zhai X, Zhang F, Chen Z, Yao J. Protective efficacy of carnosic acid against hydrogen peroxide induced oxidative injury in HepG2 cells through the SIRT1 pathway. Can J Physiol Pharmacol 2015; 93:625-31. [PMID: 26059423 DOI: 10.1139/cjpp-2014-0513] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Carnosic acid (CA), found in rosemary, has been reported to have antioxidant and antiadipogenic properties. Here, we investigate the molecular mechanism by which CA inhibits hydrogen peroxide (H2O2)-induced injury in HepG2 cells. Cells were pretreated with 2.5–10 μmol/L CA for 2 h and then exposed to 3 mmol/L H2O2 for an additional 4 h. CA dose-dependently increased cell viability and decreased lactate dehydrogenase activities. Pretreatment with CA completely attenuated the inhibited expression of manganese superoxide dismutase (MnSOD) and the B-cell lymphoma-extra large (Bcl-xL), and reduced glutathione activity caused by H2O2, whereas it reversed reactive oxygen species accumulation and the increase in cleaved caspase-3. Importantly, sirtuin 1 (SIRT1), a NAD+-dependent deacetylase, was significantly increased by CA. Considering the above results, we hypothesized that SIRT1 may play important roles in the protective effects of CA in injury induced by H2O2. As expected, SIRT1 suppression by Ex527 (6-chloro-2,3,4,9-tetrahydro-1H-carbazole-1-carboxamide) and siRNA-mediated SIRT1 silencing (si-SIRT1) significantly aggravated the H2O2-induced increased level of cleaved caspase-3 but greatly reduced the decreased expression of MnSOD and Bcl-xL. Furthermore, the positive regulatory effect of CA was inhibited by si-SIRT1. Collectively, the present study indicated that CA can alleviate H2O2-induced hepatocyte damage through the SIRT1 pathway.
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Affiliation(s)
- Yan Hu
- Department of Pharmacy, Second Affiliated Hospital of Dalian Medical University, Dalian 116023, People’s Republic of China
| | - Ning Zhang
- Department of Pharmacy, Second Affiliated Hospital of Dalian Medical University, Dalian 116023, People’s Republic of China
| | - Qing Fan
- Department of Pharmacy, Second Affiliated Hospital of Dalian Medical University, Dalian 116023, People’s Republic of China
| | - Musen Lin
- Department of Pharmacy, Second Affiliated Hospital of Dalian Medical University, Dalian 116023, People’s Republic of China
| | - Ce Zhang
- Department of Pharmacy, Second Affiliated Hospital of Dalian Medical University, Dalian 116023, People’s Republic of China
| | - Guangjun Fan
- Department of Pharmacy, Second Affiliated Hospital of Dalian Medical University, Dalian 116023, People’s Republic of China
| | - Xiaohan Zhai
- Department of Pharmacy, First Affiliated Hospital of Dalian Medical University, Dalian 116011, People’s Republic of China
| | - Feng Zhang
- Department of General Surgery, Second Affiliated Hospital of Dalian Medical University, Dalian 116023, People’s Republic of China
| | - Zhao Chen
- Department of General Surgery, Second Affiliated Hospital of Dalian Medical University, Dalian 116023, People’s Republic of China
| | - Jihong Yao
- Department of Pharmacology, Dalian Medical University, Dalian 116044, People’s Republic of China
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Shan W, Gao L, Zeng W, Hu Y, Wang G, Li M, Zhou J, Ma X, Tian X, Yao J. Activation of the SIRT1/p66shc antiapoptosis pathway via carnosic acid-induced inhibition of miR-34a protects rats against nonalcoholic fatty liver disease. Cell Death Dis 2015. [PMID: 26203862 PMCID: PMC4650741 DOI: 10.1038/cddis.2015.196] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Recent studies have demonstrated that miR-34a expression is significantly upregulated and associated with apoptosis in nonalcoholic fatty liver disease (NAFLD). Carnosic acid (CA) is a novel antioxidant and a potential inhibitor of apoptosis in organ injury, including liver injury. This study aimed to investigate the signaling mechanisms underlying miR-34a expression and the antiapoptotic effect of CA in NAFLD. CA treatment significantly reduced the high-fat diet (HFD)-induced elevations in aminotransferase activity as well as in serum triglyceride (TG), total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C) and malondialdehyde (MDA) levels but increased serum high-density lipoprotein cholesterol (HDL-C) and hepatic superoxide dismutase (SOD) levels. Moreover, CA treatment ameliorated the increase in cleaved caspase-3 caused by HFD exposure and completely reversed the HFD-induced decreases in manganese superoxide dismutase (MnSOD) and B-cell lymphoma-extra large expression. CA also counteracted the HFD- or palmitic acid (PA)-induced increases in caspase-3 and caspase-9 activity. Mechanistically, CA reversed the HFD- or PA-induced upregulation of miR-34a, which is the best-characterized regulator of SIRT1. Importantly, the decrease in miR-34a expression was closely associated with the activation of the SIRT1/p66shc pathway, which attenuates hepatocyte apoptosis in liver ischemia/reperfusion injury. A dual luciferase assay in L02 cells validated the modulation of SIRT1 by CA, which occurs at least partly via miR-34a. In addition, miR-34a overexpression was significantly counteracted by CA, which prevented the miR-34a-dependent repression of the SIRT1/p66shc pathway and apoptosis. Collectively, our results support a link between liver cell apoptosis and the miR-34a/SIRT1/p66shc pathway, which can be modulated by CA in NAFLD.
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Affiliation(s)
- W Shan
- Department of Pharmacology, Dalian Medical University, Dalian, China
| | - L Gao
- Department of Pharmacology, Dalian Medical University, Dalian, China
| | - W Zeng
- Department of Pharmacology, Dalian Medical University, Dalian, China
| | - Y Hu
- Department of Pharmacology, Dalian Medical University, Dalian, China
| | - G Wang
- Department of General Surgery, Second Affiliated Hospital, Dalian Medical University, Dalian, China
| | - M Li
- Department of Pharmacology, Dalian Medical University, Dalian, China
| | - J Zhou
- Department of Pharmacology, Dalian Medical University, Dalian, China
| | - X Ma
- Department of Pharmacology, Dalian Medical University, Dalian, China
| | - X Tian
- Department of General Surgery, Second Affiliated Hospital, Dalian Medical University, Dalian, China
| | - J Yao
- Department of Pharmacology, Dalian Medical University, Dalian, China
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Narayanan SV, Dave KR, Saul I, Perez-Pinzon MA. Resveratrol Preconditioning Protects Against Cerebral Ischemic Injury via Nuclear Erythroid 2-Related Factor 2. Stroke 2015; 46:1626-32. [PMID: 25908459 PMCID: PMC4442036 DOI: 10.1161/strokeaha.115.008921] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2015] [Accepted: 03/17/2015] [Indexed: 12/22/2022]
Abstract
BACKGROUND AND PURPOSE Nuclear erythroid 2 related factor 2 (Nrf2) is an astrocyte-enriched transcription factor that has previously been shown to upregulate cellular antioxidant systems in response to ischemia. Although resveratrol preconditioning (RPC) has emerged as a potential neuroprotective therapy, the involvement of Nrf2 in RPC-induced neuroprotection and mitochondrial reactive oxygen species production after cerebral ischemia remains unclear. The goal of our study was to study the contribution of Nrf2 to RPC and its effects on mitochondrial function. METHODS We used rodent astrocyte cultures and an in vivo stroke model with RPC. An Nrf2 DNA binding ELISA and protein analysis via Western blotting of downstream Nrf2 targets were performed to determine RPC-induced activation of Nrf2 in rat and mouse astrocytes. After RPC, mitochondrial function was determined by measuring reactive oxygen species production and mitochondrial respiration in both wild-type and Nrf2-/- mice. Infarct volume was measured to determine neuroprotection, whereas protein levels were measured by immunoblotting. RESULTS We report that Nrf2 is activated by RPC in rodent astrocyte cultures, and that loss of Nrf2 reduced RPC-mediated neuroprotection in a mouse model of focal cerebral ischemia. In addition, we observed that wild-type and Nrf2-/- cortical mitochondria exhibited increased uncoupling and reactive oxygen species production after RPC treatments. Finally, Nrf2-/- astrocytes exhibited decreased mitochondrial antioxidant expression and were unable to upregulate cellular antioxidants after RPC treatment. CONCLUSIONS Nrf2 contributes to RPC-induced neuroprotection through maintaining mitochondrial coupling and antioxidant protein expression.
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Affiliation(s)
- Srinivasan V Narayanan
- From the Cerebral Vascular Disease Research Laboratories (S.V.N., K.R.D., I.S., M.A.P.-P.), Neuroscience Program (S.V.N., K.R.D., M.A.P.-P.), and Department of Neurology (S.V.N., K.R.D., I.S., M.A.P.-P.), University of Miami Miller School of Medicine, FL; and University of Miami Miller School of Medicine MD/PhD Program (S.V.N.)
| | - Kunjan R Dave
- From the Cerebral Vascular Disease Research Laboratories (S.V.N., K.R.D., I.S., M.A.P.-P.), Neuroscience Program (S.V.N., K.R.D., M.A.P.-P.), and Department of Neurology (S.V.N., K.R.D., I.S., M.A.P.-P.), University of Miami Miller School of Medicine, FL; and University of Miami Miller School of Medicine MD/PhD Program (S.V.N.)
| | - Isa Saul
- From the Cerebral Vascular Disease Research Laboratories (S.V.N., K.R.D., I.S., M.A.P.-P.), Neuroscience Program (S.V.N., K.R.D., M.A.P.-P.), and Department of Neurology (S.V.N., K.R.D., I.S., M.A.P.-P.), University of Miami Miller School of Medicine, FL; and University of Miami Miller School of Medicine MD/PhD Program (S.V.N.)
| | - Miguel A Perez-Pinzon
- From the Cerebral Vascular Disease Research Laboratories (S.V.N., K.R.D., I.S., M.A.P.-P.), Neuroscience Program (S.V.N., K.R.D., M.A.P.-P.), and Department of Neurology (S.V.N., K.R.D., I.S., M.A.P.-P.), University of Miami Miller School of Medicine, FL; and University of Miami Miller School of Medicine MD/PhD Program (S.V.N.).
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