1
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Chen Q, Hu R, Qiu H, Li S, Xiang P, Lu Y, Wang X, Wang T, Zhou L, Zhang W, Wen E, Ma L, Yu C. REDD1 knockdown ameliorates endothelial cell senescence through repressing TXNIP-mediated oxidative stress. Mech Ageing Dev 2024; 221:111962. [PMID: 39004152 DOI: 10.1016/j.mad.2024.111962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2024] [Revised: 06/23/2024] [Accepted: 07/03/2024] [Indexed: 07/16/2024]
Abstract
Endothelial cell senescence characterized by reactive oxygen species (ROS) accumulation and chronic inflammation is widely recognized as a key contributor to atherosclerosis (AS). Regulated in development and DNA damage response 1 (REDD1), a conserved stress-response protein that regulates ROS production, is involved in the pathogenesis of various age-related diseases. However, the role of REDD1 in endothelial cell senescence is still unclear. Here, we screened REDD1 as a differentially expressed senescence-related gene in the AS progression using bioinformatics methods, and validated the upregulation of REDD1 expression in AS plaques, senescent endothelial cells, and aging aorta by constructing AS mice, D-galactose (DG)-induced senescent endothelial cells and DG-induced accelerated aging mice, respectively. siRNA against REDD1 could improve DG-induced premature senescence of endothelial cells and inhibit ROS accumulation, similar to antioxidant N-Acetylcysteine (NAC) treatment. Meanwhile, NAC reduced the upregulation of REDD1 induced by DG, supporting the positive feedback loop between REDD1 and ROS contributes to endothelial cell senescence. Mechanistically, the regulatory effect of REDD1 on ROS might be related to the TXNIP-REDD1 interaction in DG-induced endothelial cell senescence. Collectively, experiments above provide evidence that REDD1 participates in endothelial cell senescence through repressing TXNIP-mediated oxidative stress, which may be involved in the progression of atherosclerosis.
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Affiliation(s)
- Qingqiu Chen
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, College of Pharmacy, Chongqing Medical University, Chongqing 400010, China
| | - Rong Hu
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, College of Pharmacy, Chongqing Medical University, Chongqing 400010, China
| | - Hongmei Qiu
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, College of Pharmacy, Chongqing Medical University, Chongqing 400010, China
| | - Shan Li
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, College of Pharmacy, Chongqing Medical University, Chongqing 400010, China
| | - Peng Xiang
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, College of Pharmacy, Chongqing Medical University, Chongqing 400010, China
| | - Yining Lu
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, College of Pharmacy, Chongqing Medical University, Chongqing 400010, China
| | - Xianmin Wang
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, College of Pharmacy, Chongqing Medical University, Chongqing 400010, China
| | - Tongchuan Wang
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, College of Pharmacy, Chongqing Medical University, Chongqing 400010, China
| | - Lan Zhou
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, College of Pharmacy, Chongqing Medical University, Chongqing 400010, China
| | - Wanping Zhang
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, College of Pharmacy, Chongqing Medical University, Chongqing 400010, China
| | - E Wen
- Precision Medicine Center, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Limei Ma
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, College of Pharmacy, Chongqing Medical University, Chongqing 400010, China.
| | - Chao Yu
- Chongqing Key Laboratory for Pharmaceutical Metabolism Research, College of Pharmacy, Chongqing Medical University, Chongqing 400010, China.
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2
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Zhang Y, Yu S, Guo X, Wang L, Yu L, Wang P. Therapeutic potential of salidroside in preserving rat cochlea organ of corti from gentamicin-induced injury through modulation of NRF2 signaling and GSK3β/NF-κB pathway. PLoS One 2024; 19:e0298529. [PMID: 38483863 PMCID: PMC10939193 DOI: 10.1371/journal.pone.0298529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 01/25/2024] [Indexed: 03/17/2024] Open
Abstract
Salidroside (SAL) is a phenol glycoside compound found in plants of the Rhodiola genus which has natural antioxidant and free radical scavenging properties. SAL are able to protect against manganese-induced ototoxicity. However, the molecular mechanism by which SAL reduces levels of reactive oxygen species (ROS) is unclear. Here, we established an in vitro gentamicin (GM) ototoxicity model to observe the protective effect of SAL on GM-induced hair cells (HC) damage. Cochlear explants of postnatal day 4 rats were obtained and randomly divided into six groups: two model groups (treatment with 0.2 mM or 0.4 mM GM for 24 h); two 400 μmol/L SAL-pretreated groups pretreatment with SAL for 3 h followed by GM treatment (0.2 mM or 0.4 mM) for 24 h; 400 μmol/L SAL group (treatment with SAL for 24 h); control group (normal cultured cochlear explants). The protective effects of SAL on GM-induced HC damage, and on mRNA and protein levels of antioxidant enzymes were observed. HC loss occurred after 24 h of GM treatment. Pretreatment with SAL significantly reduced GM-induced OHC loss. In cochlear tissues, mRNA and protein levels of NRF2 and HO-1 were enhanced in the GM alone group compared with the SAL pretreatment GM treatment group. SAL may protect against GM-induced ototoxicity by regulating the antioxidant defense system of cochlear tissues; SAL can activate NRF2/HO-1 signaling, inhibit NF-κB activation, activate AKT, and increase inhibitory phosphorylation of GSK3β to decrease GSK3 activity, all of which exert antioxidant effects.
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Affiliation(s)
- Yan Zhang
- Department of Otolaryngology-Head and Neck Surgery, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Shuyuan Yu
- Department of Otolaryngology-Head and Neck Surgery, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Xinyi Guo
- Department of Otolaryngology-Head and Neck Surgery, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Luoying Wang
- Department of Regenerative Medicine, College of Pharmacy, Jilin University, Changchun, Jilin, China
| | - Ling Yu
- Department of Pharmacy, the Second Hospital of Jilin University, Changchun, Jilin, China
| | - Ping Wang
- Department of Otolaryngology-Head and Neck Surgery, The First Hospital of Jilin University, Changchun, Jilin, China
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3
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Li YJ, Jin X, Li D, Lu J, Zhang XN, Yang SJ, Zhao YX, Wu M. New insights into vascular aging: Emerging role of mitochondria function. Biomed Pharmacother 2022; 156:113954. [DOI: 10.1016/j.biopha.2022.113954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 10/29/2022] [Accepted: 11/01/2022] [Indexed: 11/09/2022] Open
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4
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The Combination of Rhodosin and MMF Prolongs Cardiac Allograft Survival by Inhibiting DC Maturation by Promoting Mitochondrial Fusion. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:7260305. [PMID: 35855862 PMCID: PMC9288296 DOI: 10.1155/2022/7260305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 04/17/2022] [Accepted: 06/20/2022] [Indexed: 11/17/2022]
Abstract
Despite being the gold-standard treatment for end-stage heart disease, heart transplantation is associated with acute cardiac rejection within 1 year of transplantation. The continuous application of immunosuppressants may cause side effects such as hepatic and renal toxicity, infection, and malignancy. Developing new pharmaceutical strategies to alleviate acute rejection after heart transplantation effectively and safely is of critical importance. In this study, we performed a murine model of MHC-full mismatch cardiac transplantation and showed that the combination of Rhodosin (Rho) and mycophenolate mofetil (MMF) could prevent acute rejection and oxidative stress injury and prolong the survival time of murine heart transplants. The use of Rho plus MMF in allografts improved the balance of Tregs/Teff cells, which had a protective effect on allotransplantation. We also isolated bone marrow-derived dendritic cells (BMDCs) and determined that Rho inhibited DC maturation by promoting mitochondrial fusion mainly through the mitochondrial fusion-related protein MFN1. Herein, we demonstrated that Rho, an active ingredient isolated from the plant Rhodiola rosea with antioxidant and anti-inflammatory activities, could efficiently alleviate acute rejection and significantly prolong murine heart allograft survival when used with a low dose of MMF. More importantly, we found that Rho restrained DC maturation by promoting mitochondrial fusion and decreasing reactive oxygen species (ROS) levels, which then alleviated acute rejection in murine cardiac transplantation. Interestingly, as a novel immunosuppressant, Rho has almost no side effects compared with other traditional immunosuppressants. Taken together, these results suggest that Rho has good clinical auxiliary applications as an effective immunosuppressant and antioxidant, and this study provides an efficient strategy to overcome the side effects of immunosuppressive agents that are currently used in organ transplantation.
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5
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Raghunandan S, Ramachandran S, Ke E, Miao Y, Lal R, Chen ZB, Subramaniam S. Heme Oxygenase-1 at the Nexus of Endothelial Cell Fate Decision Under Oxidative Stress. Front Cell Dev Biol 2021; 9:702974. [PMID: 34595164 PMCID: PMC8476872 DOI: 10.3389/fcell.2021.702974] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 08/17/2021] [Indexed: 12/31/2022] Open
Abstract
Endothelial cells (ECs) form the inner lining of blood vessels and are central to sensing chemical perturbations that can lead to oxidative stress. The degree of stress is correlated with divergent phenotypes such as quiescence, cell death, or senescence. Each possible cell fate is relevant for a different aspect of endothelial function, and hence, the regulation of cell fate decisions is critically important in maintaining vascular health. This study examined the oxidative stress response (OSR) in human ECs at the boundary of cell survival and death through longitudinal measurements, including cellular, gene expression, and perturbation measurements. 0.5 mM hydrogen peroxide (HP) produced significant oxidative stress, placed the cell at this junction, and provided a model to study the effectors of cell fate. The use of systematic perturbations and high-throughput measurements provide insights into multiple regimes of the stress response. Using a systems approach, we decipher molecular mechanisms across these regimes. Significantly, our study shows that heme oxygenase-1 (HMOX1) acts as a gatekeeper of cell fate decisions. Specifically, HP treatment of HMOX1 knockdown cells reversed the gene expression of about 51% of 2,892 differentially expressed genes when treated with HP alone, affecting a variety of cellular processes, including anti-oxidant response, inflammation, DNA injury and repair, cell cycle and growth, mitochondrial stress, metabolic stress, and autophagy. Further analysis revealed that these switched genes were highly enriched in three spatial locations viz., cell surface, mitochondria, and nucleus. In particular, it revealed the novel roles of HMOX1 on cell surface receptors EGFR and IGFR, mitochondrial ETCs (MTND3, MTATP6), and epigenetic regulation through chromatin modifiers (KDM6A, RBBP5, and PPM1D) and long non-coding RNA (lncRNAs) in orchestrating the cell fate at the boundary of cell survival and death. These novel aspects suggest that HMOX1 can influence transcriptional and epigenetic modulations to orchestrate OSR affecting cell fate decisions.
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Affiliation(s)
- Sindhushree Raghunandan
- Department of Bioengineering, University of California, San Diego, San Diego, CA, United States
| | - Srinivasan Ramachandran
- Department of Bioengineering, University of California, San Diego, San Diego, CA, United States
| | - Eugene Ke
- Department of Bioengineering, University of California, San Diego, San Diego, CA, United States
| | - Yifei Miao
- Department of Diabetes Complications and Metabolism, City of Hope, Duarte, CA, United States
| | - Ratnesh Lal
- Department of Bioengineering, University of California, San Diego, San Diego, CA, United States.,Department of Mechanical and Aerospace Engineering, University of California, San Diego, San Diego, CA, United States
| | - Zhen Bouman Chen
- Department of Diabetes Complications and Metabolism, City of Hope, Duarte, CA, United States
| | - Shankar Subramaniam
- Department of Bioengineering, University of California, San Diego, San Diego, CA, United States.,Department of Computer Science and Engineering, University of California, San Diego, San Diego, CA, United States.,Department of Cellular and Molecular Medicine, University of California, San Diego, San Diego, CA, United States
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6
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Ye M, Zhao F, Ma K, Zhou K, Ma J, Fu H, Xu Z, Huang W, Wang W, Zhao J, Lv B. Enhanced effects of salidroside on erectile function and corpora cavernosa autophagy in a cavernous nerve injury rat model. Andrologia 2021; 53:e14044. [PMID: 33709426 DOI: 10.1111/and.14044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 02/10/2021] [Accepted: 02/21/2021] [Indexed: 12/31/2022] Open
Abstract
We explored the efficacy and mechanisms of salidroside treatment for erectile dysfunction induced by bilateral cavernous nerve injury (BCNI). Forty male rats were divided into four groups as follows: sham (cavernous nerves exposed only) (S); BCNI (M); BCNI + rapamycin (M + rapamycin); and BCNI + salidroside (M + salidroside). Erectile function in the rats was measured by intracavernosal pressure. Penile tissue was harvested for transmission electron microscopy, immunohistochemistry, immunofluorescence, Masson's trichrome staining, haematoxylin-eosin staining, TdT-mediated dUTP Nick End Labeling and western blotting. The M group exhibited a decrease in erectile responses and increased apoptosis and fibrosis compared to these in the S group. Meanwhile, nerve content and the penile atrophy index were also decreased in the M group. Treatment with salidroside and rapamycin for 3 weeks partially restored erectile function and significantly attenuated corporal apoptosis, fibrosis, nerve content and penile atrophy in the M group. Moreover, the autophagy level was further enhanced in the M + salidroside group, which was the same as that in the positive observation group (M + rapamycin). Salidroside treatment not only improved erectile function in rats with BCNI, but also inhibited apoptosis and fibrosis and ameliorated the loss of nerve content and endothelial and corpus cavernosum smooth muscle cells by promoting protective autophagy.
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Affiliation(s)
- Miaoyong Ye
- Department of Urology, The First People's Hospital of Wenling, The Affiliated Wenling Hospital of Wenzhou Medical University, Wenling, China.,The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Fan Zhao
- Department of Urology and Andrology, Affiliated Hospital of Nantong University, Nantong, China
| | - Ke Ma
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Kang Zhou
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Jianxiong Ma
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, China
| | - Huiying Fu
- Research Institute of Urology and Andrology, Zhejiang Chinese Medical University, Hangzhou, China
| | - Zengbao Xu
- Department of Urology, Huzhou Hospital of Traditional Chinese Medicine, Huzhou, China
| | - Wenjie Huang
- Department of Urology and Andrology, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Wenzhi Wang
- Department of Urology and Andrology, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Jianfeng Zhao
- Department of Urology and Andrology, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Bodong Lv
- Research Institute of Urology and Andrology, Zhejiang Chinese Medical University, Hangzhou, China.,Department of Urology and Andrology, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China.,Key Laboratory of Integrative Chinese and Western Medicine for Prevention and Treatment of Sexual Dysfunction of Zhejiang Province, Hangzhou, China
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7
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Antioxidant Effects of Salidroside in the Cardiovascular System. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2020:9568647. [PMID: 33062029 PMCID: PMC7533795 DOI: 10.1155/2020/9568647] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 05/08/2020] [Accepted: 05/23/2020] [Indexed: 12/14/2022]
Abstract
Cardiovascular disease is one of the main human health risks, and the incidence is increasing. Salidroside is an important bioactive component of Rhodiola rosea L., which is used to treat Alzheimer's disease, tumor, depression, and other diseases. Recent studies have shown that salidroside has therapeutic effects, to some degree, in cardiovascular diseases via an antioxidative mechanism. However, evidence-based clinical data supporting the effectiveness of salidroside in the treatment of cardiovascular diseases are limited. In this review, we discuss the effects of salidroside on cardiovascular risk factors and cardiovascular diseases and highlight potential antioxidant therapeutic strategies.
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8
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Zhang Y, Lin F, Yan Z, Chen Z, Chen Y, Zhao Y, Zhao G. Salidroside downregulates microRNA‑133a and inhibits endothelial cell apoptosis induced by oxidized low‑density lipoprotein. Int J Mol Med 2020; 46:1433-1442. [PMID: 32945356 PMCID: PMC7447316 DOI: 10.3892/ijmm.2020.4691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Accepted: 07/17/2020] [Indexed: 11/24/2022] Open
Abstract
Vascular endothelial cell apoptosis is regulated by microRNA-133a (miR-133a), which participates in the formation of atherosclerotic (AS) plaques, leading to the development of several cardiovascular diseases. Salidroside (SAL), the main component of Rhodiola, is considered to exert anti-AS effect; however, its mode of action remains unclear. Thus, the present study aimed to determine whether SAL inhibits endothelial cell apoptosis through the miR-133a pathway. Cultured human coronary artery endothelial cells (HCAECs) were exposed to oxidized low-density lipoprotein (ox-LDL). Cell viability and cytotoxicity were monitored by MTT assay. In parallel, the mRNA expression levels of miR-133a and Bcl-xL, and the protein levels of anti-apoptotic Bcl-xL and activated caspase-3 were measured. The apoptotic levels were examined by flow cytometry. Furthermore, the effects of silencing and overexpressing miR-133a on the parameters mentioned above were evaluated. Exposure to ox-LDL induced an increase in the expression of miR-133a, with a concomitant decrease in the level of Bcl-xL in the HCAECs; these effects were reversed by treatment with SAL. Importantly, the effects of SAL were impaired upon the silencing of miR-133a, whereas the overexpression of miR-133a partly restored the effects of SAL. On the whole, the findings of the present study demonstrate that SAL inhibits the ox-LDL-induced upregulation of miR-133a expression, while promoting the expression of Bcl-xL, thereby preventing endothelial cell apoptosis.
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Affiliation(s)
- Yongjie Zhang
- The First Affiliated Hospital of Xinxiang Medical University, Henan Engineering Research Center for Mitochondrion Biomedical of Heart, Heart Center, Xinxiang, Henan 453100, P.R. China
| | - Fei Lin
- The First Affiliated Hospital of Xinxiang Medical University, Henan Engineering Research Center for Mitochondrion Biomedical of Heart, Heart Center, Xinxiang, Henan 453100, P.R. China
| | - Zhigang Yan
- The First Affiliated Hospital of Xinxiang Medical University, Henan Engineering Research Center for Mitochondrion Biomedical of Heart, Heart Center, Xinxiang, Henan 453100, P.R. China
| | - Zhigang Chen
- The First Affiliated Hospital of Xinxiang Medical University, Henan Engineering Research Center for Mitochondrion Biomedical of Heart, Heart Center, Xinxiang, Henan 453100, P.R. China
| | - Yingen Chen
- The First Affiliated Hospital of Xinxiang Medical University, Henan Engineering Research Center for Mitochondrion Biomedical of Heart, Heart Center, Xinxiang, Henan 453100, P.R. China
| | - Yilin Zhao
- The First Affiliated Hospital of Xinxiang Medical University, Henan Engineering Research Center for Mitochondrion Biomedical of Heart, Heart Center, Xinxiang, Henan 453100, P.R. China
| | - Guoan Zhao
- The First Affiliated Hospital of Xinxiang Medical University, Henan Engineering Research Center for Mitochondrion Biomedical of Heart, Heart Center, Xinxiang, Henan 453100, P.R. China
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9
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Britto FA, Dumas K, Giorgetti-Peraldi S, Ollendorff V, Favier FB. Is REDD1 a metabolic double agent? Lessons from physiology and pathology. Am J Physiol Cell Physiol 2020; 319:C807-C824. [PMID: 32877205 DOI: 10.1152/ajpcell.00340.2020] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The Akt/mechanistic target of rapamycin (mTOR) signaling pathway governs macromolecule synthesis, cell growth, and metabolism in response to nutrients and growth factors. Regulated in development and DNA damage response (REDD)1 is a conserved and ubiquitous protein, which is transiently induced in response to multiple stimuli. Acting like an endogenous inhibitor of the Akt/mTOR signaling pathway, REDD1 protein has been shown to regulate cell growth, mitochondrial function, oxidative stress, and apoptosis. Recent studies also indicate that timely REDD1 expression limits Akt/mTOR-dependent synthesis processes to spare energy during metabolic stresses, avoiding energy collapse and detrimental consequences. In contrast to this beneficial role for metabolic adaptation, REDD1 chronic expression appears involved in the pathogenesis of several diseases. Indeed, REDD1 expression is found as an early biomarker in many pathologies including inflammatory diseases, cancer, neurodegenerative disorders, depression, diabetes, and obesity. Moreover, prolonged REDD1 expression is associated with cell apoptosis, excessive reactive oxygen species (ROS) production, and inflammation activation leading to tissue damage. In this review, we decipher several mechanisms that make REDD1 a likely metabolic double agent depending on its duration of expression in different physiological and pathological contexts. We also discuss the role played by REDD1 in the cross talk between the Akt/mTOR signaling pathway and the energetic metabolism.
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Affiliation(s)
| | - Karine Dumas
- Université Cote d'Azur, INSERM, UMR1065, C3M, Nice, France
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10
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Wei G, Xu X, Tong H, Wang X, Chen Y, Ding Y, Zhang S, Ju W, Fu C, Li Z, Zeng L, Xu K, Qiao J. Salidroside inhibits platelet function and thrombus formation through AKT/GSK3β signaling pathway. Aging (Albany NY) 2020; 12:8151-8166. [PMID: 32352928 PMCID: PMC7244060 DOI: 10.18632/aging.103131] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 03/30/2020] [Indexed: 12/17/2022]
Abstract
Salidroside is the main bioactive component in Rhodiola rosea and possesses multiple biological and pharmacological properties. However, whether salidroside affects platelet function remains unclear. Our study aims to investigate salidroside’s effect on platelet function. Human or mouse platelets were treated with salidroside (0-20 μM) for 1 hour at 37°C. Platelet aggregation, granule secretion, and receptors expression were measured together with detection of platelet spreading and clot retraction. In addition, salidroside (20 mg/kg) was intraperitoneally injected into mice followed by measuring tail bleeding time, arterial and venous thrombosis. Salidroside inhibited thrombin- or CRP-induced platelet aggregation and ATP release and did not affect the expression of P-selectin, glycoprotein (GP) Ibα, GPVI and αIIbβ3. Salidroside-treated platelets presented decreased spreading on fibrinogen or collagen and reduced clot retraction with decreased phosphorylation of c-Src, Syk and PLCγ2. Additionally, salidroside significantly impaired hemostasis, arterial and venous thrombus formation in mice. Moreover, in thrombin-stimulated platelets, salidroside inhibited phosphorylation of AKT (T308/S473) and GSK3β (Ser9). Further, addition of GSK3β inhibitor reversed the inhibitory effect of salidroside on platelet aggregation and clot retraction. In conclusion, salidroside inhibits platelet function and thrombosis via AKT/GSK3β signaling, suggesting that salidroside may be a novel therapeutic drug for treating thrombotic or cardiovascular diseases.
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Affiliation(s)
- Guangyu Wei
- Blood Diseases Institute, Xuzhou Medical University, Xuzhou, China.,Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China.,Key Laboratory of Bone Marrow Stem Cell, Xuzhou, China
| | - Xiaoqi Xu
- Blood Diseases Institute, Xuzhou Medical University, Xuzhou, China.,Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China.,Key Laboratory of Bone Marrow Stem Cell, Xuzhou, China
| | - Huan Tong
- Blood Diseases Institute, Xuzhou Medical University, Xuzhou, China.,Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China.,Key Laboratory of Bone Marrow Stem Cell, Xuzhou, China
| | - Xiamin Wang
- Blood Diseases Institute, Xuzhou Medical University, Xuzhou, China.,Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China.,Key Laboratory of Bone Marrow Stem Cell, Xuzhou, China
| | - Yuting Chen
- Blood Diseases Institute, Xuzhou Medical University, Xuzhou, China.,Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China.,Key Laboratory of Bone Marrow Stem Cell, Xuzhou, China
| | - Yangyang Ding
- Blood Diseases Institute, Xuzhou Medical University, Xuzhou, China.,Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China.,Key Laboratory of Bone Marrow Stem Cell, Xuzhou, China
| | - Sixuan Zhang
- Blood Diseases Institute, Xuzhou Medical University, Xuzhou, China.,Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China.,Key Laboratory of Bone Marrow Stem Cell, Xuzhou, China
| | - Wen Ju
- Blood Diseases Institute, Xuzhou Medical University, Xuzhou, China.,Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China.,Key Laboratory of Bone Marrow Stem Cell, Xuzhou, China
| | - Chunling Fu
- Blood Diseases Institute, Xuzhou Medical University, Xuzhou, China.,Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China.,Key Laboratory of Bone Marrow Stem Cell, Xuzhou, China
| | - Zhenyu Li
- Blood Diseases Institute, Xuzhou Medical University, Xuzhou, China.,Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China.,Key Laboratory of Bone Marrow Stem Cell, Xuzhou, China
| | - Lingyu Zeng
- Blood Diseases Institute, Xuzhou Medical University, Xuzhou, China.,Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China.,Key Laboratory of Bone Marrow Stem Cell, Xuzhou, China
| | - Kailin Xu
- Blood Diseases Institute, Xuzhou Medical University, Xuzhou, China.,Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China.,Key Laboratory of Bone Marrow Stem Cell, Xuzhou, China
| | - Jianlin Qiao
- Blood Diseases Institute, Xuzhou Medical University, Xuzhou, China.,Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China.,Key Laboratory of Bone Marrow Stem Cell, Xuzhou, China
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11
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Dumas K, Ayachi C, Gilleron J, Lacas‐Gervais S, Pastor F, Favier FB, Peraldi P, Vaillant N, Yvan‐Charvet L, Bonnafous S, Patouraux S, Anty R, Tran A, Gual P, Cormont M, Tanti J, Giorgetti‐Peraldi S. REDD1 deficiency protects against nonalcoholic hepatic steatosis induced by high‐fat diet. FASEB J 2020; 34:5046-5060. [DOI: 10.1096/fj.201901799rr] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 01/24/2020] [Accepted: 01/24/2020] [Indexed: 12/11/2022]
Affiliation(s)
- Karine Dumas
- Université Côte d’Azur, Inserm, C3M, Team “Cellular and Molecular Physiopathology of Obesity” France
| | - Chaima Ayachi
- Université Côte d’Azur, Inserm, C3M, Team “Cellular and Molecular Physiopathology of Obesity” France
| | - Jerome Gilleron
- Université Côte d’Azur, Inserm, C3M, Team “Cellular and Molecular Physiopathology of Obesity” France
| | | | - Faustine Pastor
- Université Côte d’Azur, Inserm, C3M, Team “Cellular and Molecular Physiopathology of Obesity” France
| | | | - Pascal Peraldi
- Université Côte d’Azur, Inserm, CNRS, iBV, Team “Stem Cells and Differentiation” France
| | - Nathalie Vaillant
- Université Côte d’Azur, Inserm, C3M, Team “Haematometabolism in Diseases” France
| | - Laurent Yvan‐Charvet
- Université Côte d’Azur, Inserm, C3M, Team “Haematometabolism in Diseases” France
| | - Stéphanie Bonnafous
- Université Côte d’Azur, Inserm, C3M, Team “Chronic Liver Diseases Associated with Steatosis and Alcohol” France
- Université Côte d’Azur, CHU, Inserm, C3M,Team “Chronic Liver Diseases Associated with Steatosis and Alcohol” France
| | - Stéphanie Patouraux
- Université Côte d’Azur, Inserm, C3M, Team “Chronic Liver Diseases Associated with Steatosis and Alcohol” France
- Université Côte d’Azur, CHU, Inserm, C3M,Team “Chronic Liver Diseases Associated with Steatosis and Alcohol” France
| | - Rodolphe Anty
- Université Côte d’Azur, Inserm, C3M, Team “Chronic Liver Diseases Associated with Steatosis and Alcohol” France
- Université Côte d’Azur, CHU, Inserm, C3M,Team “Chronic Liver Diseases Associated with Steatosis and Alcohol” France
| | - Albert Tran
- Université Côte d’Azur, Inserm, C3M, Team “Chronic Liver Diseases Associated with Steatosis and Alcohol” France
- Université Côte d’Azur, CHU, Inserm, C3M,Team “Chronic Liver Diseases Associated with Steatosis and Alcohol” France
| | - Philippe Gual
- Université Côte d’Azur, Inserm, C3M, Team “Chronic Liver Diseases Associated with Steatosis and Alcohol” France
| | - Mireille Cormont
- Université Côte d’Azur, Inserm, C3M, Team “Cellular and Molecular Physiopathology of Obesity” France
| | - Jean‐François Tanti
- Université Côte d’Azur, Inserm, C3M, Team “Cellular and Molecular Physiopathology of Obesity” France
| | - Sophie Giorgetti‐Peraldi
- Université Côte d’Azur, Inserm, C3M, Team “Cellular and Molecular Physiopathology of Obesity” France
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Bai XL, Deng XL, Wu GJ, Li WJ, Jin S. Rhodiola and salidroside in the treatment of metabolic disorders. Mini Rev Med Chem 2019; 19:1611-1626. [PMID: 31481002 DOI: 10.2174/1389557519666190903115424] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 07/31/2017] [Accepted: 07/31/2017] [Indexed: 12/14/2022]
Abstract
Over the past three decades, the knowledge gained about the mechanisms that underpin the potential use of Rhodiola in stress- and ageing-associated disorders has increased, and provided a universal framework for studies that focused on the use of Rhodiola in preventing or curing metabolic diseases. Of particular interest is the emerging role of Rhodiola in the maintenance of energy homeostasis. Moreover, over the last two decades, great efforts have been undertaken to unravel the underlying mechanisms of action of Rhodiola in the treatment of metabolic disorders. Extracts of Rhodiola and salidroside, the most abundant active compound in Rhodiola, are suggested to provide a beneficial effect in mental, behavioral, and metabolic disorders. Both in vivo and ex vivo studies, Rhodiola extracts and salidroside ameliorate metabolic disorders when administered acutely or prior to experimental injury. The mechanism involved includes multi-target effects by modulating various synergistic pathways that control oxidative stress, inflammation, mitochondria, autophagy, and cell death, as well as AMPK signaling that is associated with possible beneficial effects on metabolic disorders. However, evidence-based data supporting the effectiveness of Rhodiola or salidroside in treating metabolic disorders is limited. Therefore, a comprehensive review of available trials showing putative treatment strategies of metabolic disorders that include both clinical effective perspectives and fundamental molecular mechanisms is warranted. This review highlights studies that focus on the potential role of Rhodiola extracts and salidroside in type 2 diabetes and atherosclerosis, the two most common metabolic diseases.
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Affiliation(s)
- Xiang-Li Bai
- Department of Clinical Laboratory, Institute of Geriatric Medicine, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430077, China
| | - Xiu-Ling Deng
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Guang-Jie Wu
- Department of Endocrinology, Institute of Geriatric Medicine, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology. Wuhan, Hubei 430077, China
| | - Wen-Jing Li
- Department of Endocrinology, Institute of Geriatric Medicine, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology. Wuhan, Hubei 430077, China
| | - Si Jin
- Department of Endocrinology, Institute of Geriatric Medicine, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology. Wuhan, Hubei 430077, China
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13
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Zhao J, Du X, Wang M, Yang P, Zhang J. Salidroside mitigates hydrogen peroxide-induced injury by enhancement of microRNA-27a in human trabecular meshwork cells. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2019; 47:1758-1765. [PMID: 31062616 DOI: 10.1080/21691401.2019.1608222] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Salidroside (Sal) exerted widely pharmacological effects in multitudinous diseases had been certified. The actual study clarified the protective activity of Sal in H2O2-injured human trabecular meshwork (HTM) cells. HTM cells were disposed with H2O2 to construct an oxidative damage model in vitro. Then, Sal was utilized to administrate HTM cells, and cell viability, apoptosis, apoptosis-interrelated proteins and ROS production were appraised using CCK-8, flow cytometry, western blot and DCFH-DA staining. MiR-27a inhibitor and its control were transfected into HTM cells, and the influences of miR-27a inhibition in HTM cells stimulated with H2O2 and Sal were detected. PI3K/AKT and Wnt/β-catenin pathways were ultimately investigated to uncover the underlying mechanism. We found that H2O2 evoked HTM cells oxidative damage, as evidenced by repressing cell viability, inducing apoptosis, activating cleaved-caspase-3/-9 expression and increasing ROS production. Sal significantly lightened H2O2-evoked oxidative damage in HTM cells. Additionally, miR-27a was up-regulated by Sal, and miR-27a suppression significantly reversed the protective effect of Sal on H2O2-injured HTM cells. Finally, Sal activated PI3K/AKT and Wnt/β-catenin pathways through enhancement of miR-27a in H2O2-injured HTM cells. In conclusion, these discoveries suggested that Sal could protect HTM cells against H2O2-evoked oxidative damage by activating PI3K/AKT and Wnt/β-catenin pathways through enhancement of miR-27a. Highlights H2O2 evokes HTM cells oxidative damage; Sal relieves H2O2-induced oxidative damage in HTM cells; Sal enhances miR-27a expression in H2O2-injured HTM cells; Repressed miR-27a reverses the protective impacts of Sal on H2O2-injured HTM cells; Sal activates PI3K/AKT and Wnt/β-catenin pathways by increasing miR-27a.
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Affiliation(s)
- Jun Zhao
- a Department of Ophthalmology , Linyi People's Hospital , Linyi , China
| | - Xiujuan Du
- b Department of Ophthalmology, Eye Institute of Shandong University of Traditional Chinese Medicine , Affiliated Eye Hospital of Shandong University of TCM , Jinan , China
| | - Meng Wang
- a Department of Ophthalmology , Linyi People's Hospital , Linyi , China
| | | | - Juanmei Zhang
- a Department of Ophthalmology , Linyi People's Hospital , Linyi , China
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14
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Ren M, Xu W, Xu T. Salidroside represses proliferation, migration and invasion of human lung cancer cells through AKT and MEK/ERK signal pathway. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2019; 47:1014-1021. [PMID: 30880481 DOI: 10.1080/21691401.2019.1584566] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Salidroside, a glycoside of tyrosol, is isolated from Rhodiola rosea and shows anti-cancer functions in several cancers. However, the potentials of salidroside in the migration and invasion of lung cancer cells and its underlying mechanisms remain unknown. We aimed to investigate the functions and mechanisms of salidroside in non-small cell lung cancer (NSCLC). Human NSCLC cell line A549 was treated with different doses of salidroside. Cell viability, colony formation, apoptosis, migration and invasion were detected by CCK-8, crystal violet-staining assay, flow cytometry and transwell assay, respectively. qRT-PCR and western blot analysis were performed to assess the regulatory effects of salidroside on miR-195 expression and the activation of AKT and the MEK/ERK signal pathway. We found that, salidroside remarkably reduced cell viability, colony formation and Cyclin D1 expression, but increased p21 expression and apoptosis in A549 cells. Additionally, salidroside inhibited the migration and invasion of A549 cells by regulating expressions of migration- and invasion-related proteins. Finally, salidroside inhibited phosphorylation of AKT, MEK and ERK by upregulating miR-195 expression in A549 cells. In conclusion, salidroside inhibited the survival, migration and invasion of NSCLC cells. Salidroside blocked AKT and the MEK/ERK signal pathway by upregulating miR-195 expression in A549 cells.
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Affiliation(s)
- Mei Ren
- a Department of Oncology , Jining No.1 People's Hospital , Jining , China
| | - Wenjing Xu
- b Department of Chinese Medicine , Jining No.1 People's Hospital , Jining , China
| | - Tao Xu
- c Department of Respiratory Medicine , The Affiliated Hospital of Qingdao University , Qingdao , China
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15
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Sun J, Yue F. Suppression of REDD1 attenuates oxygen glucose deprivation/reoxygenation-evoked ischemic injury in neuron by suppressing mTOR-mediated excessive autophagy. J Cell Biochem 2019; 120:14771-14779. [PMID: 31021470 DOI: 10.1002/jcb.28737] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2018] [Revised: 03/15/2019] [Accepted: 03/22/2019] [Indexed: 12/29/2022]
Abstract
Cerebral ischemia/reperfusion (I/R) typically occurs after mechanical thrombectomy to treat ischemic stroke, generation of reactive oxygen species (ROS) after reperfusion may result in neuronal insult, ultimately leading to disability and death. Regulated in development and DNA damage responses 1 (REDD1) is a conserved stress response protein under various pathogenic conditions. Recent research confirms the controversial role of REDD1 in injury processes. Nevertheless, the role of REDD1 in cerebral I/R remains poorly defined. In the current study, increased expression of REDD1 was observed in neurons exposed to simulated I/R via oxygen glucose deprivation/reoxygenation (OGD/R) treatment. Knockdown of REDD1 enhanced OGD/R-inhibited cell viability, but suppressed lactate dehydrogenase (LDH) release in neurons upon OGD/R. Simultaneously, suppression of REDD1 also antagonized OGD/R-evoked cell apoptosis, Bax expression, and caspase-3 activity. Intriguingly, REDD1 depression abrogated neuronal oxidative stress under OGD/R condition by suppressing ROS, MDA generation, and increasing antioxidant SOD levels. Further mechanism analysis corroborated the excessive activation of autophagy in neurons upon OGD/R with increased expression of autophagy-related LC3 and Beclin-1, but decreased autophagy substrate p62 expression. Notably, REDD1 inhibition reversed OGD/R-triggered excessive neuronal autophagy. More importantly, depression of REDD1 also elevated the expression of p-mTOR. Preconditioning with mTOR inhibitor rapamycin engendered not only a reduction in mTOR activation, but also a reactivation of autophagy in REDD1 knockdown-neurons upon OGD/R. In addition, blocking the mTOR pathway muted the protective roles of REDD1 inhibition against OGD/R-induced neuron injury and oxidative stress. Together these data suggested that REDD1 may regulate I/R-induced oxidative stress injury in neurons by mediating mTOR-autophagy signaling, supporting a promising therapeutic strategy against brain ischemic diseases.
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Affiliation(s)
- Juguang Sun
- Department of Neurology, Xuzhou City Hospital of Traditional Chinese Medicine, Xuzhou, Jiangsu, China
| | - Fenglei Yue
- Department of Neurology, 521 Hospital of Norinco Group in Xi'an, Xi'an, Shaanxi, China
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Zhao D, Sun X, Lv S, Sun M, Guo H, Zhai Y, Wang Z, Dai P, Zheng L, Ye M, Wang X. Salidroside attenuates oxidized low‑density lipoprotein‑induced endothelial cell injury via promotion of the AMPK/SIRT1 pathway. Int J Mol Med 2019; 43:2279-2290. [PMID: 30942428 PMCID: PMC6488166 DOI: 10.3892/ijmm.2019.4153] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 03/12/2019] [Indexed: 02/07/2023] Open
Abstract
Oxidized low-density lipoprotein (ox-LDL)-induced endothelial damage contributes to the initiation and pathogenesis of atherosclerosis. Salidroside can alleviate atherosclerosis and attenuate endothelial cell injury induced by ox-LDL. However, the mechanisms involved in this process are not fully understood. Therefore, the purpose of the present study was to investigate the role of the adenosine monophosphate-activated protein kinase (AMPK)/sirtuin (SIRT)1 pathway in the protection of salidroside against ox-LDL-induced human umbilical vein endothelial cells (HUVECs) injuries. The results revealed that salidroside reverses ox-LDL-induced HUVECs injury as demonstrated by the upregulation of cell viability and downregulation of LDH release. In addition, salidroside increased the expression of the SIRT1 protein in ox-LDL-treated HUVECs. Next, it was demonstrated that SIRT1 knockdown induced by transfection with small interfering (si)RNA targeting SIRT1 (siSRT1) abolished the protection of salidroside against ox-LDL-induced HUVECs injuries. This was illustrated by a decrease in cell viability and an increase in LDH release, caspase-3 activity and apoptosis rate. Furthermore, salidroside mitigated ox-LDL-induced reactive oxygen species production, upregulated malondialdehyde content and NADPH oxidase 2 expression and decreased superoxide dismutase and glutathione peroxidase activities, while these effects were also reversed by siSIRT1 transfection. In addition, it was demonstrated that salidroside suppressed ox-LDL-induced mitochondrial dysfunction as demonstrated by the increase in mitochondrial membrane potential and decreases in cytochrome c expression, and Bax/Bcl-2 reductions. However, these effects were eliminated by SIRT1 knockdown. Finally, it was demonstrated that salidroside significantly upregulated the phosphorylated-AMPK expression in ox-LDL-treated HUVECs and AMPK knockdown induced by transfection with AMPK siRNA (siAMPK) leads to elimination of the salidroside-induced increase in cell viability and the decrease in LDH release. Notably, siAMPK transfection further decreased the expression of SIRT1. In conclusion, these results suggested that salidroside protects HUVECs against ox-LDL injury through inhibiting oxidative stress and improving mitochondrial dysfunction, which were dependent on activating the AMPK/SIRT1 pathway.
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Affiliation(s)
- Dongming Zhao
- Department of Cardiovascular, Affiliated Hospital of Beihua University, Jilin, Jilin 132011, P.R. China
| | - Xinyi Sun
- Department of Endocrinology and Metabolism, Affiliated Hospital of Beihua University, Jilin, Jilin 132011, P.R. China
| | - Shujie Lv
- Department of Cardiovascular, Affiliated Hospital of Beihua University, Jilin, Jilin 132011, P.R. China
| | - Miying Sun
- Department of Cardiovascular, Affiliated Hospital of Beihua University, Jilin, Jilin 132011, P.R. China
| | - Huatao Guo
- Department of Cardiovascular, Affiliated Hospital of Beihua University, Jilin, Jilin 132011, P.R. China
| | - Yujia Zhai
- Department of Cardiovascular, Affiliated Hospital of Beihua University, Jilin, Jilin 132011, P.R. China
| | - Zhi Wang
- Department of Cardiovascular, Affiliated Hospital of Beihua University, Jilin, Jilin 132011, P.R. China
| | - Peng Dai
- Department of Cardiovascular, Affiliated Hospital of Beihua University, Jilin, Jilin 132011, P.R. China
| | - Lina Zheng
- Department of Cardiovascular, Affiliated Hospital of Beihua University, Jilin, Jilin 132011, P.R. China
| | - Mingzhe Ye
- Department of Cardiovascular, Affiliated Hospital of Beihua University, Jilin, Jilin 132011, P.R. China
| | - Xinpeng Wang
- Department of Cardiovascular, Affiliated Hospital of Beihua University, Jilin, Jilin 132011, P.R. China
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Lai W, Xie X, Zhang X, Wang Y, Chu K, Brown J, Chen L, Hong G. Inhibition of Complement Drives Increase in Early Growth Response Proteins and Neuroprotection Mediated by Salidroside After Cerebral Ischemia. Inflammation 2018; 41:449-463. [PMID: 29198014 DOI: 10.1007/s10753-017-0701-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Salidroside is neuroprotective across a wide therapeutic time-window after cerebral ischemia-reperfusion injury (IRI). Here, we investigated the role of complement in mediating effects of salidroside after cerebral IRI in rats. Rats were administrated with vehicle or salidroside 50 mg/kg, given daily for either 24 or 48 h, after middle cerebral artery occlusion (MCAO) for 2 h and reperfusion for 1 h. Levels of proteins in ischemic brain were measured by immunofluorescence and western blotting. We observed early increases in the deposition of immunoglobulin M, mannose-binding lectin 2, and annexin IV on cerebral endothelial cells, induction of the complement components C3 and C3a, by 24 h after IRI, and a later significant increase in the complement component C1q by 48 h. Salidroside prevented these changes. The neuroplasticity-related early growth response proteins Egr1, Egr2, and Egr4 and activity-regulated cytoskeleton-associated protein increased transiently in the first 6 h after IRI but then decreased below baseline by 48 h after IRI. Neither salidroside nor a C3a receptor antagonist (C3aRA) affected these proteins 24 h after IRI, but both reversed their later decreases to similar and non-additive extents. Salidroside and C3aRA increased NeuN in a non-additive manner after IRI. Our results suggest that salidroside exerts neuroprotection by reducing early activation of the lectin pathway on the cerebral endothelium and inhibiting the gradual activation of the classical pathway after cerebral IRI. This prolonged neuroprotection may depend, at least in part, on increased expression of neuroplasticity-related genes driven by reduced complement activation.
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Affiliation(s)
- Wenfang Lai
- Centre of Biomedical Research & Development, Fujian University of Traditional Chinese Medicine, No. 1 Huatou Road, Minhou Shangjie, Fuzhou, China
| | - XiuLi Xie
- Centre of Biomedical Research & Development, Fujian University of Traditional Chinese Medicine, No. 1 Huatou Road, Minhou Shangjie, Fuzhou, China
| | - Xiaoqin Zhang
- Centre of Biomedical Research & Development, Fujian University of Traditional Chinese Medicine, No. 1 Huatou Road, Minhou Shangjie, Fuzhou, China
| | - Yingzheng Wang
- Centre of Biomedical Research & Development, Fujian University of Traditional Chinese Medicine, No. 1 Huatou Road, Minhou Shangjie, Fuzhou, China
| | - Kedan Chu
- Centre of Biomedical Research & Development, Fujian University of Traditional Chinese Medicine, No. 1 Huatou Road, Minhou Shangjie, Fuzhou, China
| | - John Brown
- Centre of Biomedical Research & Development, Fujian University of Traditional Chinese Medicine, No. 1 Huatou Road, Minhou Shangjie, Fuzhou, China
| | - Lidian Chen
- Centre of Biomedical Research & Development, Fujian University of Traditional Chinese Medicine, No. 1 Huatou Road, Minhou Shangjie, Fuzhou, China
| | - Guizhu Hong
- Centre of Biomedical Research & Development, Fujian University of Traditional Chinese Medicine, No. 1 Huatou Road, Minhou Shangjie, Fuzhou, China.
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Yin Y, Liu D, Tian D. Salidroside prevents hydroperoxide-induced oxidative stress and apoptosis in retinal pigment epithelium cells. Exp Ther Med 2018; 16:2363-2368. [PMID: 30210588 PMCID: PMC6122584 DOI: 10.3892/etm.2018.6494] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Accepted: 06/29/2018] [Indexed: 11/06/2022] Open
Abstract
Salidroside (SAL) is the major pharmacologically active constituent of Rhodiola rosea, which possesses a wide range of pharmacological functions, including anti-aging, anti-inflammatory, antioxidant, anticancer and neuroprotective activities. However, the effects and mechanisms of SAL on oxidative stress in retinal pigment epithelial (RPE) cells exposed to hydrogen peroxide (H2O2) remain unclear. The present study investigated the protective effects of SAL and the underlying mechanisms against H2O2-induced oxidative stress in human RPE cells. ARPE-19 cells were treated with various doses of SAL for 24 h and then exposed to 200 µM H2O2 for 24 h. Cell viability was analyzed by a MTT assay, and the intracellular levels of reactive oxygen species were measured using CellROX orange reagent. Cell apoptosis was analyzed by annexin V/propidium iodide double staining, followed by flow cytometry. The levels of B-cell lymphoma 2 (Bcl-2), Bcl-2-associated X protein, phospho (p)-protein kinase B (Akt), Akt, p-glycogen synthase kinase (GSK)-3β and GSK-3β were evaluated using western blotting. The results demonstrated that SAL markedly attenuated H2O2-induced loss of cell viability. SAL also ameliorated H2O2-induced oxidative stress and cell apoptosis in RPE cells. In addition, pretreatment with SAL significantly increased the phosphorylation levels of Akt and GSK-3β in H2O2-treated ARPE-19 cells. In conclusion, the present study demonstrated that SAL protected RPE cells against H2O2-induced cell injury through the activation of the Akt/GSK-3β signaling pathway. This suggests that SAL may be a potential therapeutic strategy for the treatment of age-related macular degeneration.
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Affiliation(s)
- Yan Yin
- Department of Ophthalmology, Jining No. 1 People's Hospital, Jining, Shandong 272011, P.R. China
| | - Dejie Liu
- Department of Ophthalmology, Yantai Yeda Hospital, Yantai, Shandong 264006, P.R. China
| | - Donghua Tian
- Department of Ophthalmology, Jining No. 1 People's Hospital, Jining, Shandong 272011, P.R. China
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Rhodiola rosea L.: an herb with anti-stress, anti-aging, and immunostimulating properties for cancer chemoprevention. ACTA ACUST UNITED AC 2017; 3:384-395. [PMID: 30393593 DOI: 10.1007/s40495-017-0106-1] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Purpose of review Rhodiola rosea extracts have been used as a dietary supplement in healthy populations, including athletes, to non-specifically enhance the natural resistance of the body to both physical and behavior stresses for fighting fatigue and depression. We summarize the information with respect to the new pharmacological activities of Rhodiola rosea extracts and its underlying molecular mechanisms in this review article. Recent findings In addition to its multiplex stress-protective activity, Rhodiola rosea extracts have recently demonstrated its anti-aging, anti-inflammation, immunostimulating, DNA repair and anti-cancer effects in different model systems. Molecular mechanisms of Rhodiola rosea extracts's action have been studied mainly along with one of its bioactive compounds, salidroside. Both Rhodiola rosea extracts and salidroside have contrast molecular mechanisms on cancer and normal physiological functions. For cancer, Rhodiola rosea extracts and salidroside inhibit the mTOR pathway and reduce angiogenesis through down-regulation of the expression of HIF-1α/HIF-2α. For normal physiological functions, Rhodiola rosea extracts and salidroside activate the mTOR pathway, stimulate paracrine function and promote neovascularization by inhibiting PHD3 and stabilizing HIF-1α proteins in skeletal muscles. In contrast to many natural compounds, salidroside is water-soluble and highly bioavailable via oral administration and concentrated in urine by kidney excretion. Summary Rhodiola rosea extracts and salidroside can impose cellular and systemic benefits similar to the effect of positive lifestyle interventions to normal physiological functions and for anti-cancer. The unique pharmacological properties of Rhodiola rosea extracts or salidroside deserve further investigation for cancer chemoprevention, in particular for human urinary bladder cancer.
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Huang LY, Yen IC, Tsai WC, Ahmetaj-Shala B, Chang TC, Tsai CS, Lee SY. Rhodiola crenulata Attenuates High Glucose Induced Endothelial Dysfunction in Human Umbilical Vein Endothelial Cells. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2017; 45:1201-1216. [DOI: 10.1142/s0192415x17500665] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Rhodiola crenulata root extract (RCE), a traditional Chinese medicine, has been shown to regulate glucose and lipid metabolism via the AMPK pathway in high glucose (HG) conditions. However, the effect of RCE on HG-induced endothelial dysfunction remains unclear. The present study was designed to examine the effects and mechanisms of RCE against hyperglycemic insult in endothelial cells. Human umbilical vein endothelial cells (HUVECs) were pretreated with or without RCE and then exposed to 33[Formula: see text]mM HG medium. The cell viability, nitrite production, oxidative stress markers, and vasoactive factors, as well as the mechanisms underlying RCE action, were then investigated. We found that RCE significantly improved cell death, nitric oxide (NO) defects, and oxidative stress in HG conditions. In addition, RCE significantly decreased the HG-induced vasoactive markers, including endothelin-1 (ET-1), fibronectin, and vascular endothelial growth factor (VEGF). However, the RCE-restored AMPK-Akt-eNOS-NO axis and cell viability were abolished by the presence of an AMPK inhibitor. These findings suggested that the protective effects of RCE were associated with the AMPK-Akt-eNOS-NO signaling pathway. In conclusion, we showed that RCE protected endothelial cells from hyperglycemic insult and demonstrated its potential for use as a treatment for endothelial dysfunction in diabetes mellitus.
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Affiliation(s)
- Li-Yen Huang
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan
- Division of Cardiology, Department of Internal Medicine, Taoyuan Armed Forces General Hospital, Taoyuan, Taiwan
| | - I-Chuan Yen
- School of Pharmacy, National Defense Medical Center, Taipei, Taiwan
| | - Wei-Cheng Tsai
- Graduate Institute of Aerospace and Undersea Medicine, National Defense Medical Center, Taipei, Taiwan
| | | | - Tsu-Chung Chang
- Department of Biochemistry, National Defense Medical Center, Taipei, Taiwan
| | - Chien-Sung Tsai
- Department and Graduate Institute of Pharmacology, National Defense Medical Center, Taipei, Taiwan
- Division of Cardiovascular Surgery, Department of Surgery, Taoyuan Armed General Forces General Hospital, Taoyuan, Taiwan
- Division of Cardiovascular Surgery, Department of Surgery, Tri-Service General Hospital, Taipei, Taiwan
| | - Shih-Yu Lee
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan
- Graduate Institute of Aerospace and Undersea Medicine, National Defense Medical Center, Taipei, Taiwan
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Lu H, Li Y, Zhang T, Liu M, Chi Y, Liu S, Shi Y. Salidroside Reduces High-Glucose-Induced Podocyte Apoptosis and Oxidative Stress via Upregulating Heme Oxygenase-1 (HO-1) Expression. Med Sci Monit 2017; 23:4067-4076. [PMID: 28831032 PMCID: PMC5580518 DOI: 10.12659/msm.902806] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Background Hyperglycemia is one of the most dangerous factors causing diabetic nephropathy. Salidroside is considered to have the effects of reducing oxidative stress damage and improving cell viability. This study was performed to investigate whether and how salidroside reduces high-glucose (HG)-induced apoptosis in mouse podocytes. Material/Methods We examined whether salidroside could decrease HG-induced podocyte oxidative stress and podocyte apoptosis in vitro. The potential signaling pathways were also investigated. Podocytes (immortalized mouse epithelial cells) were treated with normal glucose (5.5 mM) as control or HG (30 mM), and then exposed to salidroside treatment. Results HG enhanced the generation of intracellular reactive oxygen species (ROS) and apoptosis in podocytes. Salidroside reduced HG-induced apoptosis-related consequences via promoting HO-1 expression. Salidroside increased the expression level of phosphorylated Akt (p-Akt) and phosphorylated ILK (p-ILK), p-JNK, and p-ERK and localization of Nrf-2. JNK inhibitor and ILK inhibitor decreased HO-1 expression to different degrees. Moreover, specific siRNAs of ILK, Nrf-2, and HO-1, and inhibitors of HO-1 and ILK significantly increased ROS generation and Caspase9/3 expression in the presence of salidroside and HG. Conclusions The results suggest that salidroside reduces HG-induced ROS generation and apoptosis and improves podocytes viability by upregulating HO-1 expression. ILK/Akt, JNK, ERK1/2, p38 MAPK, and Nrf-2 are involved in salidroside-decreased podocyte apoptosis in HG condition.
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Affiliation(s)
- Hua Lu
- Department of Nephrology, The 3rd Hospital of Hebei Medical University, Shijiazhuang, Hebei, China (mainland).,Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhuang, Hebei, China (mainland)
| | - Ying Li
- Department of Nephrology, The 3rd Hospital of Hebei Medical University, Shijiazhuang, Hebei, China (mainland).,Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhuang, Hebei, China (mainland)
| | - Tao Zhang
- Department of Nephrology, The 3rd Hospital of Hebei Medical University, Shijiazhuang, Hebei, China (mainland).,Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhuang, Hebei, China (mainland)
| | - Maodong Liu
- Department of Nephrology, The 3rd Hospital of Hebei Medical University, Shijiazhuang, Hebei, China (mainland).,Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhuang, Hebei, China (mainland)
| | - Yanqing Chi
- Department of Nephrology, The 3rd Hospital of Hebei Medical University, Shijiazhuang, Hebei, China (mainland).,Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhuang, Hebei, China (mainland)
| | - Shuxia Liu
- Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhuang, Hebei, China (mainland).,Department of Pathology, Hebei Medical University, Shijiazhuang, Hebei, China (mainland)
| | - Yonghong Shi
- Key Laboratory of Kidney Diseases of Hebei Province, Shijiazhuang, Hebei, China (mainland).,Department of Pathology, Hebei Medical University, Shijiazhuang, Hebei, China (mainland)
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22
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Alvarez-Garcia O, Matsuzaki T, Olmer M, Plate L, Kelly JW, Lotz MK. Regulated in Development and DNA Damage Response 1 Deficiency Impairs Autophagy and Mitochondrial Biogenesis in Articular Cartilage and Increases the Severity of Experimental Osteoarthritis. Arthritis Rheumatol 2017; 69:1418-1428. [PMID: 28334504 DOI: 10.1002/art.40104] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 03/16/2017] [Indexed: 12/11/2022]
Abstract
OBJECTIVE Regulated in development and DNA damage response 1 (REDD1) is an endogenous inhibitor of mechanistic target of rapamycin (mTOR) that regulates cellular stress responses. REDD1 expression is decreased in aged and osteoarthritic (OA) cartilage, and it regulates mTOR signaling and autophagy in articular chondrocytes in vitro. This study was undertaken to investigate the effects of REDD1 deletion in vivo using a mouse model of experimental OA. METHODS OA severity was histologically assessed in 4-month-old wild-type and REDD1-/- mice subjected to surgical destabilization of the medial meniscus (DMM). Chondrocyte autophagy, apoptosis, mitochondrial content, and expression of mitochondrial biogenesis markers were determined in cartilage and cultured chondrocytes from wild-type and REDD1-/- mice. RESULTS REDD1 deficiency increased the severity of changes in cartilage, menisci, subchondral bone, and synovium in the DMM model of OA. Chondrocyte death was increased in the cartilage of REDD1-/- mice and in cultured REDD1-/- mouse chondrocytes under oxidative stress conditions. Expression of key autophagy markers (microtubule-associated protein 1A/1B light chain 3 and autophagy protein 5) was markedly reduced in cartilage from REDD1-/- mice and in cultured human and mouse chondrocytes with REDD1 depletion. Mitochondrial content, ATP levels, and expression of the mitochondrial biogenesis markers peroxisome proliferator-activated receptor γ coactivator 1α (PGC-1α) and transcription factor A, mitochondrial (TFAM) were also decreased in REDD1-deficient chondrocytes. REDD1 was required for AMP-activated protein kinase-induced PGC-1α in chondrocytes. CONCLUSION Our findings suggest that REDD1 is a key mediator of cartilage homeostasis through regulation of autophagy and mitochondrial biogenesis and that REDD1 deficiency exacerbates the severity of injury-induced OA.
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Affiliation(s)
| | | | - Merissa Olmer
- The Scripps Research Institute, La Jolla, California
| | - Lars Plate
- The Scripps Research Institute, La Jolla, California
| | | | - Martin K Lotz
- The Scripps Research Institute, La Jolla, California
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23
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Alvarez-Garcia O, Matsuzaki T, Olmer M, Plate L, Kelly JW, Lotz MK. Regulated in Development and DNA Damage Response 1 Deficiency Impairs Autophagy and Mitochondrial Biogenesis in Articular Cartilage and Increases the Severity of Experimental Osteoarthritis. ARTHRITIS & RHEUMATOLOGY (HOBOKEN, N.J.) 2017. [PMID: 28334504 DOI: 10.1002/art.40104.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Regulated in development and DNA damage response 1 (REDD1) is an endogenous inhibitor of mechanistic target of rapamycin (mTOR) that regulates cellular stress responses. REDD1 expression is decreased in aged and osteoarthritic (OA) cartilage, and it regulates mTOR signaling and autophagy in articular chondrocytes in vitro. This study was undertaken to investigate the effects of REDD1 deletion in vivo using a mouse model of experimental OA. METHODS OA severity was histologically assessed in 4-month-old wild-type and REDD1-/- mice subjected to surgical destabilization of the medial meniscus (DMM). Chondrocyte autophagy, apoptosis, mitochondrial content, and expression of mitochondrial biogenesis markers were determined in cartilage and cultured chondrocytes from wild-type and REDD1-/- mice. RESULTS REDD1 deficiency increased the severity of changes in cartilage, menisci, subchondral bone, and synovium in the DMM model of OA. Chondrocyte death was increased in the cartilage of REDD1-/- mice and in cultured REDD1-/- mouse chondrocytes under oxidative stress conditions. Expression of key autophagy markers (microtubule-associated protein 1A/1B light chain 3 and autophagy protein 5) was markedly reduced in cartilage from REDD1-/- mice and in cultured human and mouse chondrocytes with REDD1 depletion. Mitochondrial content, ATP levels, and expression of the mitochondrial biogenesis markers peroxisome proliferator-activated receptor γ coactivator 1α (PGC-1α) and transcription factor A, mitochondrial (TFAM) were also decreased in REDD1-deficient chondrocytes. REDD1 was required for AMP-activated protein kinase-induced PGC-1α in chondrocytes. CONCLUSION Our findings suggest that REDD1 is a key mediator of cartilage homeostasis through regulation of autophagy and mitochondrial biogenesis and that REDD1 deficiency exacerbates the severity of injury-induced OA.
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Affiliation(s)
| | | | - Merissa Olmer
- The Scripps Research Institute, La Jolla, California
| | - Lars Plate
- The Scripps Research Institute, La Jolla, California
| | | | - Martin K Lotz
- The Scripps Research Institute, La Jolla, California
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24
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Zhu L, Jia F, Wei J, Yu Y, Yu T, Wang Y, Sun J, Luo G. Salidroside protects against homocysteine-induced injury in human umbilical vein endothelial cells via the regulation of endoplasmic reticulum stress. Cardiovasc Ther 2016; 35:33-39. [PMID: 27809414 DOI: 10.1111/1755-5922.12234] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 10/25/2016] [Accepted: 10/31/2016] [Indexed: 11/28/2022] Open
Affiliation(s)
- Lin Zhu
- Department of Cardiology; Third Affiliated Hospital of Soochow University; Changzhou China
| | - Fang Jia
- Department of Cardiology; Third Affiliated Hospital of Soochow University; Changzhou China
| | - Jiang Wei
- Comprehensive Laboratory; Third Affiliated Hospital of Soochow University; Changzhou China
| | - Yang Yu
- Comprehensive Laboratory; Third Affiliated Hospital of Soochow University; Changzhou China
| | - Tianhong Yu
- Department of Cardiology; Third Affiliated Hospital of Soochow University; Changzhou China
| | - Yanjun Wang
- Department of Cardiology; Third Affiliated Hospital of Soochow University; Changzhou China
| | - Jianhui Sun
- Department of Cardiology; Third Affiliated Hospital of Soochow University; Changzhou China
| | - Guanghua Luo
- Comprehensive Laboratory; Third Affiliated Hospital of Soochow University; Changzhou China
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25
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Lipina C, Hundal HS. Is REDD1 a Metabolic Éminence Grise? Trends Endocrinol Metab 2016; 27:868-880. [PMID: 27613400 PMCID: PMC5119498 DOI: 10.1016/j.tem.2016.08.005] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 08/04/2016] [Accepted: 08/09/2016] [Indexed: 01/31/2023]
Abstract
Regulated in development and DNA damage response 1 (REDD1) has been functionally linked to the control of diverse cellular processes due, at least in part, to its ability to repress mammalian or mechanistic Target of Rapamycin (mTOR) Complex-1 (mTORC1), a key protein complex controlled by hormonal and nutrient cues. Notably, emerging evidence suggests that REDD1 also regulates several pathways involved in modulating energy balance and metabolism. Herein, we discuss evidence implicating REDD1 as a key modulator of insulin action and metabolic function, including its potential contribution to mitochondrial biology and pancreatic islet function. Collectively, the available evidence suggests that REDD1 has a more prominent role in energy homeostasis than was previously thought, and implicates REDD1 as a potential therapeutic target for treatment of metabolic disorders.
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Affiliation(s)
- Christopher Lipina
- Division of Cell Signalling and Immunology, Sir James Black Centre, School of Life Sciences, University of Dundee, Dundee, DD1 5EH, UK
| | - Harinder S Hundal
- Division of Cell Signalling and Immunology, Sir James Black Centre, School of Life Sciences, University of Dundee, Dundee, DD1 5EH, UK.
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26
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Zheng XT, Wu ZH, Wei Y, Dai JJ, Yu GF, Yuan F, Ye LC. Induction of autophagy by salidroside through the AMPK-mTOR pathway protects vascular endothelial cells from oxidative stress-induced apoptosis. Mol Cell Biochem 2016; 425:125-138. [PMID: 27848074 DOI: 10.1007/s11010-016-2868-x] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2016] [Accepted: 11/02/2016] [Indexed: 12/13/2022]
Abstract
Vascular endothelial cells are highly sensitive to oxidative stress, and this is one of the mechanisms by which widespread endothelial dysfunction is induced in most cardiovascular diseases and disorders. However, how these cells can survive in oxidative stress environments remains unclear. Salidroside, a traditional Chinese medicine, has been shown to confer vascular protective effects. We aimed to understand the role of autophagy and its regulatory mechanisms by treating human umbilical vein endothelial cells (HUVECs) with salidroside under oxidative stress. HUVECs were treated with salidroside and exposed to hydrogen peroxide (H2O2). The results indicated that salidroside exerted cytoprotective effects in an H2O2-induced HUVEC injury model and suppressed H2O2-induced apoptosis of HUVECs. Pretreatment with 3-methyladenine (3-MA), an autophagy inhibitor, increased oxidative stress-induced HUVEC apoptosis, while the autophagy activator rapamycin induced anti-apoptosis effects in HUVECs. Salidroside increased autophagy and decreased apoptosis of HUVECs in a dose-dependent manner under oxidative stress. Moreover, 3-MA attenuated salidroside-induced HUVEC autophagy and promoted apoptosis, whereas rapamycin had no additional effects compared with salidroside alone. Salidroside upregulated AMPK phosphorylation but downregulated mTOR phosphorylation under oxidative stress; however, administration of compound C, an AMPK inhibitor, abrogated AMPK phosphorylation and increased mTOR phosphorylation and apoptosis compared with salidroside alone. These results suggest that autophagy is a protective mechanism in HUVECs under oxidative stress and that salidroside might promote autophagy through activation of the AMPK pathway and downregulation of mTOR pathway.
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Affiliation(s)
- Xiang-Tao Zheng
- Department of Vascular Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Zi-Heng Wu
- Department of Vascular Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - Ye Wei
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, People's Republic of China
| | - Ju-Ji Dai
- Department of Vascular Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Guan-Feng Yu
- Department of Vascular Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, People's Republic of China
| | - FengLai Yuan
- Department of Central Laboratory, The third Hospital Affiliated to Nantong University, Wuxi, 214041, Jiangsu, People's Republic of China.
| | - Le-Chi Ye
- Department of Oncological Surgery, The First Affiliated Hospital of Wenzhou Medical University, Nanbaixiang, Ouhai District, Wenzhou, 325015, Zhejiang, People's Republic of China.
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27
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Zhu Y, Zhang YJ, Liu WW, Shi AW, Gu N. Salidroside Suppresses HUVECs Cell Injury Induced by Oxidative Stress through Activating the Nrf2 Signaling Pathway. Molecules 2016; 21:E1033. [PMID: 27517893 PMCID: PMC6273208 DOI: 10.3390/molecules21081033] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Revised: 08/03/2016] [Accepted: 08/05/2016] [Indexed: 01/14/2023] Open
Abstract
Oxidative stress plays an important role in the pathogenesis of cardiovascular diseases. Salidroside (SAL), one of the main effective constituents of Rhodiola rosea, has been reported to suppress oxidative stress-induced cardiomyocyte injury and necrosis by promoting transcription of nuclear factor E2-related factor 2 (Nrf2)-regulated genes such as heme oxygenase-1 (HO-1) and NAD(P)H dehydrogenase (quinone1) (NQO1). However, it has not been indicated whether SAL might ameliorate endothelial injury induced by oxidative stress. Here, our study demonstrated that SAL might suppress HUVEC cell injury induced by oxidative stress through activating the Nrf2 signaling pathway. The results of our study indicated that SAL decreased the levels of intercellular reactive oxygen species (ROS) and malondialdehyde (MDA), and improved the activities of superoxide dismutase (SOD) and catalase (CAT), resulting in protective effects against oxidative stress-induced cell damage in HUVECs. It suppressed oxidative stress damage by inducing Nrf2 nuclear translocation and activating the expression of Nrf2-regulated antioxidant enzyme genes such as HO-1 and NQO1 in HUVECs. Knockdown of Nrf2 with siRNA abolished the cytoprotective effects against oxidative stress, decreased the expression of Nrf2, HO-1, and NQO1, and inhibited the nucleus translocation of Nrf2 in HUVECs. This study is the first to demonstrate that SAL suppresses HUVECs cell injury induced by oxidative stress through activating the Nrf2 signaling pathway.
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Affiliation(s)
- Yao Zhu
- First College of Clinical Medicine, Nanjing University of Traditional Chinese Medicine, Nanjing 210023, China.
| | - Ya-Jie Zhang
- Nanjing Hospital of Traditional Chinese Medicine, Nanjing 210001, China.
| | - Wei-Wei Liu
- First College of Clinical Medicine, Nanjing University of Traditional Chinese Medicine, Nanjing 210023, China.
| | - Ai-Wu Shi
- Nanjing Maternity and Child Health Care Hospital, Nanjing 210004, China.
| | - Ning Gu
- Nanjing Hospital of Traditional Chinese Medicine, Nanjing 210001, China.
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Shi MQ, Su FF, Xu X, Liu XT, Wang HT, Zhang W, Li X, Lian C, Zheng QS, Feng ZC. Cilostazol suppresses angiotensin II-induced apoptosis in endothelial cells. Mol Med Rep 2016; 13:2597-605. [PMID: 26862035 PMCID: PMC4768974 DOI: 10.3892/mmr.2016.4881] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Accepted: 01/20/2016] [Indexed: 01/14/2023] Open
Abstract
Patients with essential hypertension undergo endothelial dysfunction, particularly in the conduit arteries. Cilostazol, a type III phosphodiesterase inhibitor, serves a role in the inhibition of platelet aggregation and it is widely used in the treatment of peripheral vascular diseases. Previous studies have suggested that cilostazol suppresses endothelial dysfunction; however, it remains unknown whether cilostazol protects the endothelial function in essential hypertension. The aim of the present study was to investigate whether, and how, cilostazol suppresses angiotensin II (angII)-induced endothelial dysfunction. Human umbilical vein endothelial cells (HUVECs) and Sprague Dawley rats were exposed to angII and treated with cilostazol. Endothelial cell apoptosis and function, nitric oxide and superoxide production, phosphorylation (p) of Akt, and caspase-3 protein expression levels were investigated. AngII exposure resulted in the apoptosis of endothelial cells in vitro and in vivo. In vitro, cilostazol significantly suppressed the angII-induced apoptosis of HUVECs; however, this effect was reduced in the presence of LY294002, a phosphoinositide 3 kinase (PI3K) inhibitor. Furthermore, cilostazol suppressed the angII-induced p-Akt downregulation and cleaved caspase-3 upregulation. These effects were also alleviated by LY294002. In vivo, cilostazol suppressed the angII-induced endothelial cell apoptosis and dysfunction. Cilostazol was also demonstrated to partially reduced the angII-induced increase in superoxide production. The results of the present study suggested that cilostazol suppresses endothelial apoptosis and dysfunction by modulating the PI3K/Akt pathway.
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Affiliation(s)
- Miao-Qian Shi
- Department of Pediatrics, Affiliated Bayi Children's Hospital, General Military Hospital of Beijing PLA, Beijing Key Laboratory of Pediatric Organ Failure, Beijing 100700, P.R. China
| | - Fei-Fei Su
- Department of Cardiology, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Xuan Xu
- Department of Pediatrics, Affiliated Bayi Children's Hospital, General Military Hospital of Beijing PLA, Beijing Key Laboratory of Pediatric Organ Failure, Beijing 100700, P.R. China
| | - Xiong-Tao Liu
- Department of Cardiology, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Hong-Tao Wang
- Department of Cardiology, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Wei Zhang
- Department of Cardiology, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Xue Li
- Department of Cardiology, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Cheng Lian
- Department of Cardiology, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Qiang-Sun Zheng
- Department of Cardiology, Tangdu Hospital, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Zhi-Chun Feng
- Department of Pediatrics, Affiliated Bayi Children's Hospital, General Military Hospital of Beijing PLA, Beijing Key Laboratory of Pediatric Organ Failure, Beijing 100700, P.R. China
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Protective Effects of Salidroside on Mitochondrial Functions against Exertional Heat Stroke-Induced Organ Damage in the Rat. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 2015:504567. [PMID: 26664452 PMCID: PMC4667077 DOI: 10.1155/2015/504567] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Revised: 07/05/2015] [Accepted: 07/22/2015] [Indexed: 11/17/2022]
Abstract
Exertional heat stroke (EHS) results in a constellation of systemic inflammatory responses resulting in multiorgan failure and an extremely high mortality. The present study was designed to evaluate the protective effects of salidroside on EHS by improving mitochondrial functions in the rat model. Liver and heart mitochondria were observed by transmission electron microscopy and mitochondrial membrane potential (ΔΨm) was detected by a fluorescent probe. Intramitochondrial free Ca2+ concentration, mitochondrial respiratory control ratio (RCR), reactive oxygen species (ROS) levels, superoxide dismutase (SOD), and malondialdehyde (MDA) activity were detected by the corresponding kits. RT-PCR was performed to estimate peroxisome proliferator-activated receptor-γ coactivator-1α (PGC-1α) and manganese form of SOD (MnSOD) mRNA expression. The results demonstrated that salidroside was able to relieve EHS damage by reducing the swelling of mitochondria, ROS levels, and MDA activity, as well as increasing ΔΨm, RCR, free Ca2+ concentration, SOD, PGC-1α, and MnSOD mRNA levels. In conclusion, salidroside has protective effects on mitochondrial functions against exertional heat stroke-induced organ damage in the rat.
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Zhao CH, Zhu ZH, Wang YL, Reiser G, Tang L. Protection of Salidroside on Primary Astrocytes from Cell Death by Attenuating Oxidative Stress. CHINESE HERBAL MEDICINES 2015. [DOI: 10.1016/s1674-6384(15)60056-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
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Shi K, Wang X, Zhu J, Cao G, Zhang K, Su Z. Salidroside protects retinal endothelial cells against hydrogen peroxide-induced injury via modulating oxidative status and apoptosis. Biosci Biotechnol Biochem 2015; 79:1406-13. [PMID: 25921655 DOI: 10.1080/09168451.2015.1038212] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Oxidative stress can cause injury in retinal endothelial cells. Salidroside is a strong antioxidative and cytoprotective supplement in Chinese traditional medicine. In this study, we investigated the effects of salidroside on H2O2-induced primary retinal endothelial cells injury. Salidroside decreased H2O2-induced cell death, and efficiently suppressed cellular ROS production, malondialdehyde generation, and cell apoptosis induced by H2O2 treatment. Salidroside induced the intracellular mRNA expression, protein expression, and enzymatic activities of catalase and Mn-SOD and increased the ratio of Bcl2/Bax. Our results demonstrated that salidroside protected retinal endothelial cells against oxidative injury through increasing the Bcl2/Bax signaling pathway and activation of endogenous antioxidant enzymes. This finding presents salidroside as an attractive agent with potential to attenuate retinopathic diseases.
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Affiliation(s)
- Kai Shi
- a Department of Ophthalmology, West China Hospital , Sichuan University , Chendu , China
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miR-103 Regulates Oxidative Stress by Targeting the BCL2/Adenovirus E1B 19 kDa Interacting Protein 3 in HUVECs. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2015:489647. [PMID: 26000071 PMCID: PMC4427121 DOI: 10.1155/2015/489647] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Revised: 03/23/2015] [Accepted: 04/01/2015] [Indexed: 02/07/2023]
Abstract
Oxidative stress plays a critical role in cardiovascular diseases. Salidroside, a glycoside from Rhodiola rosea, has been used as an antioxidative therapy for oxidative injury in cardiac diseases. However, the mechanism underlying its antioxidant effect needs to be elucidated. Treatment of HUVECs with H2O2 significantly decreased the expression of miR-103 in a dose- and time-dependent manner, whereas pretreatment with salidroside significantly inhibited this decrease. Subsequent analysis showed that overexpression of miR-103 abrogated cell activity and ROS production induced by H2O2. Bcl2/adenovirus E1B 19 kDa interacting protein 3 (BNIP3) was determined to be a novel miR-103 target in HUVECs. Interestingly, H2O2 treatment upregulated BNIP3 expression; in turn, this effect was inhibited by pretreatment with salidroside. Further studies confirmed that the knockdown of BNIP3 enhanced cell activity and suppressed the ROS production induced by H2O2. These results demonstrated for the first time that salidroside protects HUVECs in part by upregulating the expression of miR-103, which mediates BNIP3 downregulation and plays an important role in the cytoprotective actions.
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Zhao G, Shi A, Fan Z, Du Y. Salidroside inhibits the growth of human breast cancer in vitro and in vivo. Oncol Rep 2015; 33:2553-60. [PMID: 25814002 DOI: 10.3892/or.2015.3857] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Accepted: 01/26/2015] [Indexed: 11/05/2022] Open
Abstract
Salidroside has been identified as one of the most potent compounds isolated from the plant Rhodiola rosea, and was found to have several important biological properties, including antioxidant and anti-inflammatory activity; however, its anticancer effects are poorly understood. Thus, the present study focused on evaluating the effects of purified salidroside on the growth of human breast cancer in vitro and in vivo, and on further investigating its possible molecular mechanisms. The human breast cancer cell line, MCF-7, was incubated with various concentrations of salidroside, and cell proliferation, colony formation, cell cycle distribution, apoptosis, migration and invasion were assayed by several in vitro approaches. As a result, it was found that salidroside treatment significantly inhibited cell proliferation, colony formation, migration and invasion, as well as induced cell apoptosis and cell cycle arrest at the G0/G1 phase in vitro. In addition, we also evaluated the effect of salidroside on tumor growth in a nude mouse model, and found that salidroside treatment significantly suppressed tumor growth in vivo. We also further disclosed that salidroside treatment significantly inhibited the intracellular reactive oxygen species (ROS) formation and MAPK pathway activation, which may contribute to the inhibition of tumor growth of breast cancer and reduction of oxidative stress. In conclusion, these findings suggest that salidroside may be a promising candidate target for the prevention and treatment of human breast cancer.
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Affiliation(s)
- Gang Zhao
- Department of Breast Surgery, The First Hospital, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Aiping Shi
- Department of Breast Surgery, The First Hospital, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Zhimin Fan
- Department of Breast Surgery, The First Hospital, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Ye Du
- Department of Breast Surgery, The First Hospital, Jilin University, Changchun, Jilin 130021, P.R. China
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Tang Y, Vater C, Jacobi A, Liebers C, Zou X, Stiehler M. Salidroside exerts angiogenic and cytoprotective effects on human bone marrow-derived endothelial progenitor cells via Akt/mTOR/p70S6K and MAPK signalling pathways. Br J Pharmacol 2014; 171:2440-56. [PMID: 24471788 DOI: 10.1111/bph.12611] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Revised: 01/12/2014] [Accepted: 01/23/2014] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND AND PURPOSE With the increase of age, increased susceptibility to apoptosis and senescence may contribute to proliferative and functional impairment of endothelial progenitor cells (EPCs). The aim of this study was to investigate whether salidroside (SAL) can induce angiogenic differentiation and inhibit oxidative stress-induced apoptosis in bone marrow-derived EPCs (BM-EPCs), and if so, through what mechanism. EXPERIMENTAL APPROACH BM-EPCs were isolated and treated with different concentrations of SAL for up to 4 days. Cell proliferation, migration and tube formation ability were detected by DNA content quantification, transwell assay and Matrigel-based angiogenesis assay. Gene and protein expression were assessed by qRT-PCR and Western blot respectively. KEY RESULTS Treatment with SAL promoted cellular proliferation and angiogenic differentiation of BM-EPCs, and increased VEGF and NO secretion, which in turn mediated the enhanced angiogenic differentiation of BM-EPCs. Furthermore, SAL significantly attenuated hydrogen peroxide (H₂O₂)-induced cell apoptosis, reduced the intracellular level of reactive oxygen species and restored the mitochondrial membrane potential of BM-EPCs. Moreover, SAL stimulated the phosphorylation of Akt, mammalian target of rapamycin and p70 S6 kinase, as well as ERK1/2, which is associated with cell migration and capillary tube formation. Additionally, SAL reversed the phosphorylation of JNK and p38 MAPK induced by H₂O₂ and suppressed the changes in the Bax/Bcl-xL ratio observed after stimulation with H₂O₂. CONCLUSIONS AND IMPLICATIONS These findings identify novel mechanisms that regulate EPC function and suggest that SAL has therapeutic potential as a new agent to enhance vasculogenesis as well as protect against oxidative endothelial injury.
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Affiliation(s)
- Yubo Tang
- Centre for Translational Bone, Joint and Soft Tissue Research, Medical Faculty and University Centre for Orthopaedics and Trauma Surgery, University Hospital Carl Gustav Carus at Technische Universität Dresden, Dresden, Germany; Department of Pharmacy, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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35
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Salidroside improves doxorubicin-induced cardiac dysfunction by suppression of excessive oxidative stress and cardiomyocyte apoptosis. J Cardiovasc Pharmacol 2014; 62:512-23. [PMID: 24072175 DOI: 10.1097/fjc.0000000000000009] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Doxorubicin (DOX) is a potent available antitumor drug; however, its clinical use is limited by the cardiotoxicity. Salidroside (SLD), with strong antioxidative and cytoprotective actions, is of particular interest in the development of antioxidative therapies for oxidative injury in cardiac diseases. Now, the protection and underlying mechanisms of SLD against DOX-induced cardiotoxicity are still unknown. In the present study, we revealed both antioxidative mechanism and Bcl2-dependent survival signaling involved in SLD's protection. We observed that DOX exposure induced mortality elevation, body weight loss, and cardiac dysfunction in mice, increased lactate dehydrogenase leakage and cardiomyocyte apoptosis, but decreased cell viability and size in cardiac tissues and cultured H9c2 cells, respectively, which were effectively antagonized by SLD supplement. We further observed that SLD significantly reduced the intercellular oxidative stress level, partly by inhibiting NOX1 expression and augmenting the expression and activities of the endogenous antioxidative enzymes, catalase, and manganese superoxide dismutase. In addition, SLD treatment upregulated the antiapoptotic Bcl2 and downregulated the proapoptotic Bax and inhibited a downstream pathway of Bcl2/Bax and caspase-3 activity. Our results indicated that SLD effectively protected the cardiomyocytes against DOX-induced cardiotoxicity by suppressing the excessive oxidative stress and activating a Bcl2-mediated survival signaling pathway.
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Salidroside stimulates mitochondrial biogenesis and protects against H₂O₂-induced endothelial dysfunction. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2014; 2014:904834. [PMID: 24868319 PMCID: PMC4020198 DOI: 10.1155/2014/904834] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Accepted: 03/19/2014] [Indexed: 02/07/2023]
Abstract
Salidroside (SAL) is an active component of Rhodiola rosea with documented antioxidative properties. The purpose of this study is to explore the mechanism of the protective effect of SAL on hydrogen peroxide- (H2O2-) induced endothelial dysfunction. Pretreatment of the human umbilical vein endothelial cells (HUVECs) with SAL significantly reduced the cytotoxicity brought by H2O2. Functional studies on the rat aortas found that SAL rescued the endothelium-dependent relaxation and reduced superoxide anion (O2∙−) production induced by H2O2. Meanwhile, SAL pretreatment inhibited H2O2-induced nitric oxide (NO) production. The underlying mechanisms involve the inhibition of H2O2-induced activation of endothelial nitric oxide synthase (eNOS), adenosine monophosphate-activated protein kinase (AMPK), and Akt, as well as the redox sensitive transcription factor, NF-kappa B (NF-κB). SAL also increased mitochondrial mass and upregulated the mitochondrial biogenesis factors, peroxisome proliferator-activated receptor gamma-coactivator-1alpha (PGC-1α), and mitochondrial transcription factor A (TFAM) in the endothelial cells. H2O2-induced mitochondrial dysfunction, as demonstrated by reduced mitochondrial membrane potential (Δψm) and ATP production, was rescued by SAL pretreatment. Taken together, these findings implicate that SAL could protect endothelium against H2O2-induced injury via promoting mitochondrial biogenesis and function, thus preventing the overactivation of oxidative stress-related downstream signaling pathways.
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