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Zhou H, Sun X, Dai Y, Wang X, Dai Z, Li X. 14-3-3-η interacts with BCL-2 to protect human endothelial progenitor cells from ox-LDL-triggered damage. Cell Biol Int 2024; 48:290-299. [PMID: 38100125 DOI: 10.1002/cbin.12105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 10/31/2023] [Accepted: 11/18/2023] [Indexed: 02/15/2024]
Abstract
Oxidized low-density lipoprotein (ox-LDL) causes dysfunction of endothelial progenitor cells (EPCs), and we recently reported that 14-3-3-η can attenuate the damage triggered by ox-LDL in EPCs. However, the molecular mechanisms by which 14-3-3-η protects EPCs from the damage caused by ox-LDL are not fully understood. In this study, we observed that the expression of 14-3-3-η and BCL-2 were downregulated in ox-LDL-treated EPCs. Overexpression of 14-3-3-η in ox-LDL-treated EPC significantly increased BCL-2 level, while knockdown of BCL-2 reduced 14-3-3-η expression and mitigated the protective effect of 14-3-3-η on EPCs. In addition, we discovered that 14-3-3-η colocalizes and interacts with BCL-2 in EPCs. Taken together, these data suggest that 14-3-3-η protects EPCs from ox-LDL-induced damage by its interaction with BCL-2.
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Affiliation(s)
- Hui Zhou
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Xiaopei Sun
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Yi Dai
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Xiaotong Wang
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Zhihong Dai
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Xiuli Li
- Department of Cardiovascular Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
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Bai Z, Wang H, Li X, Shen X, Chen Y, Fu Y, Li W. Presence of immune factors in freshwater mussel ( Hyriopsis cumingii) entails autologous serum an essential component in the culture of mantle cells. Front Immunol 2023; 14:1173184. [PMID: 37215128 PMCID: PMC10196017 DOI: 10.3389/fimmu.2023.1173184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 04/19/2023] [Indexed: 05/24/2023] Open
Abstract
Mussel cell culture is a challenging problem and serum serves a crucial biological role in cell culture as an autologous supply and an immunizing agent. In this study, the biology (calcium ions, total protein, pH, and osmotic pressure) of fetal bovine serum (FBS) and Hyriopsis cumingii serum (HCS) was investigated, and the development of Hyriopsis cumingii (H. cumingii) mantle cells in HCS and FBS systems was examined. The results showed that total protein, calcium ions, and osmotic pressure varied significantly (p<0.05). The activity of mantle cells was superior in the HCS culture system to that in the FBS culture system. The label-free technique was used to distinguish the two serum proteins to investigate the supportive effect of autologous serum on cell culture. These were examined for 109 unique proteins and 35 particular HCS proteins. Most differentially expressed proteins (DEPs) were involved in immune response, cell differentiation, and calcium ion binding. Furthermore, immune factors such as HSP, CALR, APOB, C3 were identified with significant differences. HSP was significantly more present in HCS than in FBS as an endogenous protective protein that regulates immune system function, cell differentiation, transport, and activity regulation. Parallel reaction monitoring (PRM) analysis was carried out to validate the expression levels of 19 DEPs, indicating high reliability of the proteomic results. This study reveals the important role of immune factors in mussel cell culture, providing a theoretical basis for explaining the applicability of autologous serum in cell culture. It is also helpful in improving the cell culture conditions of mussels.
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Affiliation(s)
- Zhiyi Bai
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, China
- Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai, China
- Shanghai Collaborative Innovation Center for Cultivating Elite Breeds and Green-culture of Aquaculture Animals, Shanghai, China
| | - He Wang
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, China
- Shanghai Collaborative Innovation Center for Cultivating Elite Breeds and Green-culture of Aquaculture Animals, Shanghai, China
| | - Xuenan Li
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, China
| | - Xiaoya Shen
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, China
| | - Yige Chen
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, China
| | - Yuanshuai Fu
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, China
- Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai, China
| | - Wenjuan Li
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, China
- Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai, China
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Zhang F, Wu Y, Chen H. Myocardial Proteomics Based on Smart Fog Computing and Its Application in Sports. Computational Intelligence and Neuroscience 2022; 2022:1-8. [PMID: 35154296 PMCID: PMC8828339 DOI: 10.1155/2022/1471916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 12/29/2021] [Accepted: 01/12/2022] [Indexed: 12/02/2022]
Abstract
How to strengthen physical fitness to improve the effect and efficiency of sports is an important research direction worthy of research. In response to these problems and limitations, Smart Fog Computing technology is introduced in this paper. Taking rats as the research object, the effective quantitative analysis and research of aerobic exercise on myocardial proteome are achieved through combining the business scope of myocardial proteomics, and connecting corresponding continuous aerobic exercises, verified by simulation analysis. The simulation research results show that the smart fog calculation is effective. For moderate-intensity aerobic exercise, the expression and intensity of the corresponding myocardial protein are changed significantly, and the corresponding heart becomes larger; meanwhile, moderate aerobic exercise can improve the metabolism and enhance digestive ability.
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Su F, Shi M, Zhang J, Li Y, Tian J. Recombinant high‑mobility group box 1 induces cardiomyocyte hypertrophy by regulating the 14‑3‑3η, PI3K and nuclear factor of activated T cells signaling pathways. Mol Med Rep 2021; 23:214. [PMID: 33495819 PMCID: PMC7845624 DOI: 10.3892/mmr.2021.11853] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Accepted: 09/07/2020] [Indexed: 01/20/2023] Open
Abstract
High-mobility group box 1 (HMGB1) is released by necrotic cells and serves an important role in cardiovascular pathology. However, the effects of HMGB1 in cardiomyocyte hypertrophy remain unclear. Therefore, the aim of the present study was to investigate the potential role of HMGB1 in cardiomyocyte hypertrophy and the underlying mechanisms of its action. Neonatal mouse cardiomyocytes (NMCs) were co-cultured with recombinant HMGB1 (rHMGB1). Wortmannin was used to inhibit PI3K activity in cardiomyocytes. Subsequently, atrial natriuretic peptide (ANP), 14-3-3 and phosphorylated-Akt (p-Akt) protein levels were detected using western blot analysis. In addition, nuclear factor of activated T cells 3 (NFAT3) protein levels were measured by western blot analysis and observed in NMCs under a confocal microscope. The results revealed that rHMGB1 increased ANP and p-Akt, and decreased 14-3-3η protein levels. Furthermore, wortmannin abrogated the effects of rHMGB1 on ANP, 14-3-3η and p-Akt protein levels. In addition, rHMGB1 induced nuclear translocation of NFAT3, which was also inhibited by wortmannin pretreatment. The results of this study suggest that rHMGB1 induces cardiac hypertrophy by regulating the 14-3-3η/PI3K/Akt/NFAT3 signaling pathway.
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Affiliation(s)
- Feifei Su
- Department of Cardiology, Air Force Medical Center, People's Liberation Army, Beijing 100142, P.R. China
| | - Miaoqian Shi
- Department of Cardiology, The Seventh Medical Centre of The People's Liberation Army General Hospital, Beijing 100700, P.R. China
| | - Jian Zhang
- Department of Cardiology, Beijing Chest Hospital Heart Center, Capital Medical University, Beijing 101149, P.R. China
| | - Yan Li
- Department of Cardiology, Tangdu Hospital Affiliated to The Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Jianwei Tian
- Department of Cardiology, Air Force Medical Center, People's Liberation Army, Beijing 100142, P.R. China
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Tu J, Chen X, Dai M, Pan A, Liu C, Zhou Y, Xia X, Sun L. Serum levels of 14-3-3η are associated with increased disease risk, activity and duration of rheumatoid arthritis in Chinese patients. Exp Ther Med 2020; 20:754-761. [PMID: 32742321 PMCID: PMC7388387 DOI: 10.3892/etm.2020.8761] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Accepted: 08/07/2019] [Indexed: 12/13/2022] Open
Abstract
The aim of the present study was to determine the association between serum 14-3-3η expression levels and disease risk, inflammation level and disease duration in Chinese patients with rheumatoid arthritis (RA). A total of 45 Chinese patients with RA, 45 patients with osteoarthritis (OA) and 44 age- and sex-matched (with the RA group) healthy control (HC) subjects were consecutively recruited for the present case-controlled study. In addition, the demographic and clinicopathological characteristics of the patients with RA were collected. Serum samples were obtained from patients with RA, patients with OA and the HCs, and the serum levels of 14-3-3η were determined by ELISA. Compared with that in the OA patients (P=0.006) and HCs (P<0.001), 14-3-3η expression was significantly increased in RA patients, and receiver operating characteristics (ROC) analysis indicated that it served as a potential predictive marker for the risk of RA. In patients with RA, serum levels of 14-3-3η were positively correlated with disease duration (P=0.003), erythrocyte sedimentation rate (P=0.006) and disease activity score in 28 joints (P=0.025). The proportion of rheumatoid factor (RF)-positive patients (P=0.023) and anti-citrullinated protein antibody (ACPA)-positive patients (P=0.002) with RA was increased (when 14-3-3η expression was increased) compared with RF-negative patients or ACPA-negative patients, respectively. Of note, 14-3-3η serum levels were able to distinguish patients with established RA (disease duration, >2 years) from patients with early RA (disease duration, ≤2 years) with an AUC of 0.759 (95% CI, 0.612-0.905), and the sensitivity and the specificity at the best cut-off point (14-3-3η=0.613 ng/ml) were 79.3 and 75.0%, respectively. Furthermore, 14-3-3η was able to differentiate between RF-positive RA patients and RF-negative patients or HCs. In conclusion, circulating 14-3-3η expression may serve as a novel biomarker for disease risk and activity of RA in Chinese patients.
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Affiliation(s)
- Jianxin Tu
- Department of Rheumatology and Immunology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Xiaowei Chen
- Department of Rheumatology and Immunology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Meijie Dai
- Department of Laboratory Medicine, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Axiao Pan
- Department of Rheumatology and Immunology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Cailong Liu
- Department of Orthopaedic Sports Medicine, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Yan Zhou
- Department of Rheumatology and Immunology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Xiaoru Xia
- Department of Rheumatology and Immunology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Li Sun
- Department of Rheumatology and Immunology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
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Ye D, Wang Z, Xu Y, Ye J, Wang M, Liu J, Zhang J, Zhao M, Chen J, Wan J. Interleukin-9 aggravates doxorubicin-induced cardiotoxicity by promoting inflammation and apoptosis in mice. Life Sci 2020; 255:117844. [PMID: 32464124 DOI: 10.1016/j.lfs.2020.117844] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 05/19/2020] [Accepted: 05/22/2020] [Indexed: 01/03/2023]
Abstract
AIMS Interleukin (IL) 9 is a pleiotropic cytokine, and recent studies have demonstrated that IL-9 is associated with several cardiovascular diseases, via regulation of the inflammatory response. Doxorubicin (DOX) is known to induce severe cardiac injury and dysfunction by enhancing inflammation. This study aimed to investigate the role of IL-9 in DOX-induced cardiotoxicity. MATERIALS AND METHODS DOX was used to induce cardiac dysfunction and the expression of IL-9 in the murine cardiac tissues was measured. The mice were intraperitoneally injected with recombinant mouse IL-9 (rmIL-9) or anti-IL-9 neutralizing antibody (IL-9nAb) for investigating the effect of IL-9 on DOX-induced cardiac injury and dysfunction. The messenger ribonucleic acid (mRNA) expression levels of the pro-inflammatory cytokines were determined in each group by quantitative real-time polymerase chain reaction (RT-qPCR). The effect of rmIL-9 or IL-9nAb on DOX-induced apoptosis was determined both in vivo and vitro. KEY FINDINGS IL-9 levels significantly increased in the heart following DOX injection. Cardiac injury and dysfunction were induced by DOX, and treatment with IL-9nAb significantly alleviated DOX-induced injury, whereas rmIL-9 administration aggravated the cardiac damage. IL-9nAb decreased the expression of pro-inflammatory cytokines in the DOX-treated mice, while rmIL-9 administration increased the levels of pro-inflammatory cytokines. IL-9nAb reduced DOX-induced myocardial apoptosis, whereas rmIL-9 administration produced the opposite results. Additionally, IL-9nAb mitigated the DOX-induced apoptosis in H9C2 cells, while administration of rmIL-9 produced the opposite effect. SIGNIFICANCE Our results demonstrated that IL-9 aggravated DOX-induced cardiac injury and dysfunction by promoting the inflammatory response and cardiomyocyte apoptosis.
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Affiliation(s)
- Di Ye
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China; Cardiovascular Research Institute, Wuhan University, Wuhan 430060, China; Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Zhen Wang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China; Cardiovascular Research Institute, Wuhan University, Wuhan 430060, China; Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Yao Xu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China; Cardiovascular Research Institute, Wuhan University, Wuhan 430060, China; Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Jing Ye
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China; Cardiovascular Research Institute, Wuhan University, Wuhan 430060, China; Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Menglong Wang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China; Cardiovascular Research Institute, Wuhan University, Wuhan 430060, China; Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Jianfang Liu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China; Cardiovascular Research Institute, Wuhan University, Wuhan 430060, China; Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Jishou Zhang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China; Cardiovascular Research Institute, Wuhan University, Wuhan 430060, China; Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Mengmeng Zhao
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China; Cardiovascular Research Institute, Wuhan University, Wuhan 430060, China; Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Jiangbin Chen
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China; Cardiovascular Research Institute, Wuhan University, Wuhan 430060, China; Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Jun Wan
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China; Cardiovascular Research Institute, Wuhan University, Wuhan 430060, China; Hubei Key Laboratory of Cardiology, Wuhan, China.
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Liu P, Guo L, Mao H, Gu Z. Serum proteomics analysis reveals the thermal fitness of crossbred dairy buffalo to chronic heat stress. J Therm Biol 2020; 89:102547. [PMID: 32364989 DOI: 10.1016/j.jtherbio.2020.102547] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 02/15/2020] [Accepted: 02/16/2020] [Indexed: 12/11/2022]
Abstract
Chronic heat stress (CHS) reduces the production efficiency of the buffalo dairy industry. Relatively low-abundance proteins with particular functions in biological processes are changed by CHS. The present study aimed to quantify the differences in low-abundance proteins of crossbred dairy buffaloes under CHS and thermal-neutral (TN) conditions. With label-free quantification, 344 low-abundance proteins were identified in serum. Of these, 17 differentially expressed low-abundance proteins with known functions were detected, and six of the differentially expressed proteins related to heat stress were validated with parallel reaction monitoring. Lipase (LPL), glutathione peroxidase 3 (GPX3), cathelicidin-2 (CATHL2), ceruloplasmin (CP), and hemoglobin subunit alpha 1 (HBA1) cooperatively played roles in the thermal fitness of dairy buffalo by decreasing heat production and increasing blood oxygen delivery. Also, dairy buffaloes may adapt to CHS and hypoxia with high levels of RBCs, HBA1 and CP to increase blood oxygen delivery capacity.
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Affiliation(s)
- Ping Liu
- Yunnan Agricultural University, Black dargon pool, China.
| | - Lulu Guo
- Yunnan Agricultural University, Black dargon pool, China.
| | - Huaming Mao
- Yunnan Agricultural University, Black dargon pool, China.
| | - Zhaobing Gu
- Yunnan Agricultural University, Black dargon pool, China.
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Hammam N, Gamal NM, Elzohri MH, Elsonbaty AM, Rashed AM, Eldaly ZH, Tarik D, Gheita TA. Serum 14-3-3η protein is associated with clinical and serologic features of Sjögren's syndrome in patients with systemic lupus erythematosus: a cross-sectional analysis. Clin Rheumatol 2020; 39:2603-10. [PMID: 32206972 DOI: 10.1007/s10067-020-05033-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 12/30/2019] [Accepted: 03/05/2020] [Indexed: 10/24/2022]
Abstract
INTRODUCTION/OBJECTIVES Systemic lupus erythematosus (SLE) and Sjögren's syndrome (SS) may coexist and carry a higher risk for future comorbidities. Although 14-3-3η protein is recently a known diagnostic marker in rheumatoid arthritis (RA), its role has not been investigated in SLE. The aim of this study was to compare serum 14-3-3η protein level in SLE and RA patients and to examine its association with clinical and laboratory features in SLE patients. METHODS Eighty-four SLE patients and 39 RA patients were included. Sociodemographic, SLE disease activity index (SLEDAI), and damage index were assessed for SLE patients. Data about secondary SS were collected. 14-3-3η was measured by ELISA; titres above 0.19 ng/ml were considered positive. RESULTS Serum 14-3-3η protein in SLE was significantly lower than in RA (0.37 ± 0.09 vs 1.5 ± 0.51; p < 0.001). 14-3-3η protein level was comparable between SLE patients with and without arthritis (0.29 ± 0.8 vs 0.15 ± 0.08 respectively; p = 0.20). Serum 14-3-3η protein level was higher in SLE with secondary SS features compared to those without (0.22 ± 0.10 IU/ml vs 0.11 ± 0.04 IU/ml; respectively, p < 0.001). There were no differences in 14-3-3η positivity for other lupus criteria or correlation of 14-3-3η titer with SLEDAI. 14-3-3η protein at 1.11 ng/mL yield a secondary SS diagnostic accuracy of 71%. CONCLUSIONS Serum 14-3-3η protein level is high in SLE-associated SS. The 14-3-3η protein level was able to distinguish patients with secondary SS among patients with SLE. Studying the role of 14-3-3η protein in Sjögren's syndrome would be considered in further larger scale studies to confirm the impact of any association. Key Points • Serum 14-3-3η protein level is significantly higher in systemic lupus patients with secondary Sjögren's syndrome (SS) in comparison to those without. • Serum 14-3-3η protein can be used as a useful marker to distinguish patients with secondary SS among patients with systemic lupus. • 14-3-3η protein level shows no difference between systemic lupus patients with and without arthritis.
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Abdrabou A, Brandwein D, Wang Z. Differential Subcellular Distribution and Translocation of Seven 14-3-3 Isoforms in Response to EGF and During the Cell Cycle. Int J Mol Sci 2020; 21:E318. [PMID: 31906564 DOI: 10.3390/ijms21010318] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 12/05/2019] [Accepted: 12/28/2019] [Indexed: 12/12/2022] Open
Abstract
Multiple isoforms of 14-3-3 proteins exist in different organisms. In mammalian cells, 14-3-3 protein has seven isoforms (α/β, ε, η, γ, σ, θ/τ, and δ/ζ), with α and δ representing the phosphorylated versions of β and ζ, respectively. While the existence of multiple isoforms may represent one more level of regulation in 14-3-3 signaling, our knowledge regarding the isoform-specific functions of 14-3-3 proteins is very limited. Determination of the subcellular localization of the different 14-3-3 isoforms could give us important clues of their specific functions. In this study, by using indirect immunofluorescence, subcellular fractionation, and immunoblotting, we studied the subcellular localization of the total 14-3-3 protein and each of the seven 14-3-3 isoforms; their redistribution throughout the cell cycle; and their translocation in response to EGF in Cos-7 cells. We showed that 14-3-3 proteins are broadly distributed throughout the cell and associated with many subcellular structures/organelles, including the plasma membrane (PM), mitochondria, ER, nucleus, microtubules, and actin fibers. This broad distribution underlines the multiple functions identified for 14-3-3 proteins. The different isoforms of 14-3-3 proteins have distinctive subcellular localizations, which suggest their distinctive cellular functions. Most notably, 14-3-3ƞ is almost exclusively localized to the mitochondria, 14-3-3γ is only localized to the nucleus, and 14-3-3σ strongly and specifically associated with the centrosome during mitosis. We also examined the subcellular localization of the seven 14-3-3 isoforms in other cells, including HEK-293, MDA-MB-231, and MCF-7 cells, which largely confirmed our findings with Cos-7 cells.
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Chen XY, Huang WL, Peng XP, Lv YN, Li JH, Xiong JP. miR-140-5p mediates bevacizumab-induced cytotoxicity to cardiomyocytes by targeting the VEGFA/14-3-3γ signal pathway. Toxicol Res (Camb) 2019; 8:875-884. [PMID: 32190292 DOI: 10.1039/c9tx00100j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Accepted: 09/03/2019] [Indexed: 12/14/2022] Open
Abstract
Bevacizumab (BVZ) is the first recombinant humanized monoclonal antibody against vascular endothelial growth factor (VEGFA) approved by the FDA for the treatment of different kinds of cancers, especially colorectal cancer. Although the anti-tumor effects have been verified, the side effects of BVZ are also noteworthy, among which, cardiotoxicity may be the most serious side effect of BVZ. However, the exact mechanisms of cardiotoxicity induced by BVZ have been little explored. This study was conducted in vitro in a human cardiac myocyte (HCM) model. MTT assay was conducted to determine BVZ-stimulated cell viability. For testing the function and mechanism, the cells were transfected with miR-140-5p mimics, miR-140-5p inhibitor and/or VEGFA small interfering RNA (si-VEGFA). Then, apoptosis of the cells was detected via annexin V/propidium iodide (AV-PI) staining followed by flow cytometry. qRT-PCR and western blot assays were applied to measure gene expression (i.e. mRNA) and protein levels, respectively. The CK, LDH, SOD, CAT and GSH-Px activities and MDA level were determined using commercial kits. ROS levels were determined by DCFH-DA assay. Mitochondrial membrane potential was measured by JC-1 assay. Dual-luciferase reporter assay was used to detect the interaction between miR-140-5p and VEGFA. BVZ could inhibit HCM proliferation and induce apoptosis. miR-140-5p was upregulated in response to BVZ treatment and miR-140-5p restraint could alleviate HCM damage caused by BVZ treatment. In contrast, VEGFA and 14-3-3γ expressions were down-regulated by BVZ, and miR-140-5p could inhibit the expression of 14-3-3γ by directly targeting VEGFA. Moreover, VEGFA suppression enhanced HCM injury stimulated by BVZ and partially reversed the functional role of the miR-140-5p inhibitor in BVZ-treated cells. Taken together, miR-140-5p promoted BVZ-treated cardiomyocyte toxicity by targeting the VEGFA/14-3-3γ signal pathway. Collectively, miR-140-5p mediated the BVZ-induced cytotoxicity to cardiomyocytes by targeting the VEGFA/14-3-3γ signal pathway, indicating that miR-140-5p may be a novel target for treating BVZ-induced cardiotoxicity.
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Affiliation(s)
- Xuan-Ying Chen
- Department of Pharmacy , The First Affiliated Hospital , Nanchang University , Nanchang 330006 , P.R China
| | - Wei-Lin Huang
- Department of Cardiovascular , The First Affiliated Hospital , Nanchang University , Nanchang 330006 , P.R China
| | - Xiao-Ping Peng
- Department of Cardiovascular , The First Affiliated Hospital , Nanchang University , Nanchang 330006 , P.R China
| | - Yan-Ni Lv
- Department of Pharmacy , The First Affiliated Hospital , Nanchang University , Nanchang 330006 , P.R China
| | - Jun-He Li
- Department of Oncology , The First Affiliated Hospital , Nanchang University , Nanchang 330006 , P.R China . ; Tel: +86-13879109229
| | - Jian-Ping Xiong
- Department of Oncology , The First Affiliated Hospital , Nanchang University , Nanchang 330006 , P.R China . ; Tel: +86-13879109229
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Liu Z, Yang L, Huang J, Xu P, Zhang Z, Yin D, Liu J, He H, He M. Luteoloside attenuates anoxia/reoxygenation-induced cardiomyocytes injury via mitochondrial pathway mediated by 14-3-3η protein. Phytother Res 2018; 32:1126-1134. [PMID: 29464855 DOI: 10.1002/ptr.6053] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 01/08/2018] [Accepted: 01/11/2018] [Indexed: 01/14/2023]
Abstract
Ischemia/reperfusion (I/R) injury is the major cause of acute cardiovascular disease worldwide. 14-3-3η protein has been demonstrated to protect myocardium against I/R injury. Luteoloside (Lut), a flavonoid found in many Chinese herbs, exerts myocardial protection effects. However, the mechanism remains unclear. We hypothesize that the cardioprotective role of Lut is exerted by regulating the 14-3-3η signal pathway. To investigate our hypothesis, an in vitro I/R model was generated in H9C2 cardiomyocytes by anoxia/reoxygenation (A/R) treatment. The effects of Lut on cardiomyocytes with A/R injury were assessed by determining the cell viability, lactate dehydrogenase levels, intracellular reactive oxygen species levels, mitochondrial permeability transition pores (mPTP) openness, caspase-3 activity, and apoptosis rate. The effects on protein expression were tested using western blot analysis. Lut attenuated A/R-induced injury to cardiomyocytes by increasing the expression of 14-3-3η protein and cell viability; decreasing levels of lactate dehydrogenase, reactive oxygen species, mPTP openness, caspase-3 activity, and low apoptosis rate were observed. However, the cardioprotective effects of Lut were blocked by AD14-3-3ηRNAi, an adenovirus knocking down the intracellular 14-3-3η expression. In conclusion, to our knowledge, this is the first study to demonstrate that Lut protected cardiomyocytes from A/R-induced injury via the regulation of 14-3-3η signaling pathway.
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Affiliation(s)
- Zhantu Liu
- Jiangxi Provincial Institute of Hypertension, the First Affiliated Hospital, Nanchang University, Nanchang, 330006, China
| | - Lili Yang
- Department of Pharmacy, Nanchang School of Hygiene, Nanchang, 330006, China
| | - Jiyi Huang
- Jiangxi Provincial Key Laboratory of Basic Pharmacology, Nanchang University School of Pharmaceutical Science, Nanchang, 330006, China
| | - Ping Xu
- Jiangxi Provincial Key Laboratory of Basic Pharmacology, Nanchang University School of Pharmaceutical Science, Nanchang, 330006, China
| | - Zeyu Zhang
- Jiangxi Provincial Key Laboratory of Basic Pharmacology, Nanchang University School of Pharmaceutical Science, Nanchang, 330006, China
| | - Dong Yin
- Jiangxi Provincial Key Laboratory of Molecular Medicine, the Second Affiliated Hospital, Nanchang University, Nanchang, 330006, China
| | - Jichun Liu
- Jiangxi Provincial Institute of Hypertension, the First Affiliated Hospital, Nanchang University, Nanchang, 330006, China
| | - Huan He
- Jiangxi Provincial Key Laboratory of Basic Pharmacology, Nanchang University School of Pharmaceutical Science, Nanchang, 330006, China
| | - Ming He
- Jiangxi Provincial Institute of Hypertension, the First Affiliated Hospital, Nanchang University, Nanchang, 330006, China
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12
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Watanabe K. [From a Ph.D. Thesis: Understanding the Past, Predicting the Future]. YAKUGAKU ZASSHI 2018; 138:211-219. [PMID: 29386434 DOI: 10.1248/yakushi.17-00111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Posey et al. have reported multiple molecular diagnoses in 4.5% of cases (101/2076) in which whole-exome sequencing was informative. Distinct disease phenotypes affect different organ systems, whereas overlapping disease phenotypes are more likely to be caused by two genes encoding proteins that interact within the same pathway. My research projects at the Niigata University of Pharmacy have investigated underlying mechanisms involved in human disease, including fatty acid metabolism, diabetic cardiomyopathy, atopic dermatitis, colitis, hepatitis, etc. Three students from abroad graduated this year from the Department of Clinical Pharmacology, Niigata University of Pharmacy and Applied Life Sciences. These students reported on treatments for heart disease, non-alcoholic steatohepatitis and atopic dermatitis, as well as the underlying mechanisms involved in each. The titles of these reports are "Study of the role of cardiac 14-3-3η protein in cardiac inflammation and adverse cardiac remodeling during heart failure in mice", "Non-alcoholic steatohepatitis: onset of mechanisms under diabetic background and treatment strategies" and "The role of HMGB1 and its cascade signaling pathway in atopic dermatitis". It can be concluded from these three theses that oxidative stress and inflammation are among the principal mechanisms underlying these diseases.
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Affiliation(s)
- Kenichi Watanabe
- Department of Clinical Pharmacology, Faculty of Pharmaceutical Sciences, Niigata University of Pharmacy and Applied Life Sciences
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Su F, Shi M, Zhang J, Zheng Q, Zhang D, Zhang W, Wang H, Li X. Simvastatin Protects Heart from Pressure Overload Injury by Inhibiting Excessive Autophagy. Int J Med Sci 2018; 15:1508-1516. [PMID: 30443172 PMCID: PMC6216062 DOI: 10.7150/ijms.28106] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 08/29/2018] [Indexed: 12/12/2022] Open
Abstract
Cardiac hypertrophy is an independent predictor of cardiovascular morbidity and mortality. To identify the mechanisms by which simvastatin inhibits cardiac hypertrophy induced by pressure overload, we determined effects of simvastatin on 14-3-3 protein expression and autophagic activity. Simvastatin was administered intragastrically to Sprague-Dawley (SD) rats before abdominal aortic banding (AAB). Neonatal rat cardiomyocytes (NRCs) were treated with simvastatin before angiotensin II (AngII) stimulation. 14-3-3, LC3, and p62 protein levels were determined by western blot. Autophagy was also measured by the double-labeled red fluorescent protein-green fluorescent protein autophagy reporter system. Simvastatin alleviated excessive autophagy, characterized by a high LC3II/LC3I ratio and low level of p62, and blunted cardiac hypertrophy while increasing 14-3-3 protein expression in rats that had undergone AAB. In addition, it increased 14-3-3 expression and inhibited excessive autophagy in NRCs exposed to AngII. Our study demonstrated that simvastatin may inhibit excessive autophagy, increase 14-3-3 expression, and finally exert beneficial effects on cardioprotection against pressure overload.
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Affiliation(s)
- Feifei Su
- Department of Cardiology, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, China
| | - Miaoqian Shi
- Department of Cardiology, PLA Army General Hospital, No.5 Nanmen Cang, Dongcheng District, Beijing, 100700, China
| | - Jian Zhang
- Department of Cardiology, Beijing Chest Hospital Heart Center, Capital Medical University, No.9. Beiguan Grand Street, Tongzhou District, Beijing, 101149, China
| | - Qiangsun Zheng
- Division of Cardiology, Second Affiliated Hospital of JiaoTong University, Xi'an, 710004, China
| | - Dongwei Zhang
- Department of Cardiology, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, China
| | - Wei Zhang
- Department of Cardiology, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, China
| | - Haichang Wang
- Department of Cardiology, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, China
| | - Xue Li
- Department of Cardiology, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, China
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Xia Y, Chen Z, Chen A, Fu M, Dong Z, Hu K, Yang X, Zou Y, Sun A, Qian J, Ge J. LCZ696 improves cardiac function via alleviating Drp1-mediated mitochondrial dysfunction in mice with doxorubicin-induced dilated cardiomyopathy. J Mol Cell Cardiol 2017. [DOI: 10.1016/j.yjmcc.2017.06.003] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Karuppagounder V, Arumugam S, Babu SS, Palaniyandi SS, Watanabe K, Cooke JP, Thandavarayan RA. The senescence accelerated mouse prone 8 (SAMP8): A novel murine model for cardiac aging. Ageing Res Rev 2017; 35:291-296. [PMID: 27825897 DOI: 10.1016/j.arr.2016.10.006] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Revised: 10/25/2016] [Accepted: 10/31/2016] [Indexed: 01/23/2023]
Abstract
Because cardiovascular disease remains the major cause of mortality and morbidity world-wide, there remains a compelling need for new insights and novel therapeutic avenues. In this regard, the senescence-accelerated mouse prone 8 (SAMP8) line is a particularly good model for studying the effects of aging on cardiovascular health. Accumulating evidence suggests that this model may shed light on age-associated cardiac and vascular dysfunction and disease. These animals manifest evidence of inflammation, oxidative stress and adverse cardiac remodeling that may recapitulate processes involved in human disease. Early alterations in oxidative damage promote endoplasmic reticulum stress to trigger apoptosis and cytokine production in this genetically susceptible mouse strain. Conversely, pharmacological treatments that reduce inflammation and oxidative stress improve cardiac function in these animals. Therefore, the SAMP8 mouse model provides an exciting opportunity to expand our knowledge of aging in cardiovascular disease and the potential identification of novel targets of treatment. Herein, we review the previous studies performed in SAMP8 mice that provide insight into age-related cardiovascular alterations.
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Ying C, Mao Y, Chen L, Wang S, Ling H, Li W, Zhou X. Bamboo leaf extract ameliorates diabetic nephropathy through activating the AKT signaling pathway in rats. Int J Biol Macromol 2017; 105:1587-1594. [PMID: 28359892 DOI: 10.1016/j.ijbiomac.2017.03.124] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 03/20/2017] [Accepted: 03/21/2017] [Indexed: 02/07/2023]
Abstract
Diabetic nephropathy (DN) is one of the most severe diabetic complication and it is becoming become a worldwide epidemic, accounting for approximately one-third of all case of end-stage renal disease. However, the underlying mechanism and strategy to alleviate renal injury remain unclear. In the present study, we assessed the protective effect of bamboo leaf extract on the DN, and investigated the underlying mechanism by which bamboo leaf extract ameliorating DN. Diabetic rats were induced by 4 weeks high sugar and high fat diet, and then injected a single dose of STZ (35mg/kg) into abdominal cavity. Different dose of bamboo extract (50mg/kg, 100mg/kg and 200mg/kg) were orally administered every day for a period of 12 weeks. Body weight, blood glucose, glycosylated hemoglobin A1c (HbAlc), blood urea nitrogen (BUN), serum creatinine (Scr), and 24-hour urinary protein (24 h-UP) were assessed. Total superoxide dismutase (T-SOD) activity and MDA (methane dicarboxylic aldehyde, MDA) level were tested by assay kit. Microstructural changes were observed by hematoxylin-eosin (HE) staining and electron microscopy. Expression of phosphorylated ser/thr protein kinase (P-AKT), phosphorylated glycogen synthase kinase-3 beta (P-GSK-3β), B cell lymphoma/leukemia 2-associated X protein (BAX) and cleaved-cysteinyl aspartate-specific proteinase-3 (Cleaved Caspase-3) were measured by Western-Blotting (WB). Results showed that diabetic rats had weight loss, high blood glucose, HbAlc, BUN, Scr and 24-UP and T-SOD activity were increased and MDA level was decreased in diabetic rats. Moreover, hyperglycemia could injury renal tissue ultrastructure, inhibit P-AKT level and increase P-GSK-3β, BAX and Cleaved Caspase-3 levels in rats. However, bamboo leaf extract treatment could reduce body weight loss, BUN, Scr, 24 h-UP and MDA level, improve T-SOD activity and alleviate renal injury in diabetic rats. Furthermore, bamboo leaf extract increased P-AKT level, decreased P-GSK-3β, BAX and Cleaved Caspase-3 levels in STZ-diabetic rats. In conclusion, our study suggested that bamboo leaf extract ameliorated DN in diabetic rats, and this protective effect is possibly related to suppressing oxidative stress through activating AKT signaling pathway. Bamboo leaf extract treatment may be a potential promising therapy for DN.
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Affiliation(s)
- Changjiang Ying
- Department of Endocrinology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221002, PR China
| | - Yizhen Mao
- The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu 221002, PR China
| | - Lei Chen
- The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu 221002, PR China
| | - Shanshan Wang
- The Graduate School, Xuzhou Medical University, Xuzhou, Jiangsu 221002, PR China
| | - Hongwei Ling
- Department of Endocrinology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221002, PR China
| | - Wei Li
- Department of Endocrinology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221002, PR China.
| | - Xiaoyan Zhou
- Laboratory of Morphology, Xuzhou Medical University, Xuzhou, Jiangsu 221004, PR China.
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17
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Sreedhar R, Giridharan VV, Arumugam S, Karuppagounder V, Palaniyandi SS, Krishnamurthy P, Quevedo J, Watanabe K, Konishi T, Thandavarayan RA. Role of MAPK-mediated endoplasmic reticulum stress signaling in the heart during aging in senescence-accelerated prone mice. Biofactors 2016; 42:368-75. [PMID: 27087487 DOI: 10.1002/biof.1280] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Revised: 02/28/2016] [Accepted: 03/01/2016] [Indexed: 01/01/2023]
Abstract
Heart failure is typically related to aging as there is a definite relationship between age-related changes in the heart and the pathogenesis of heart failure. We have previously reported the involvement of p38 mitogen-activated protein kinase protein in cardiac function using animal models of heart failure. To further understand its relationship with aging-induced heart failure, we have compared its expression in the hearts of senescence accelerated-prone (SAMP8) mice and their control (SAMR1) with normal aging behavior. We have identified its activation along with reduced expression of 14-3-3η protein in SAMP8 mice hearts than in SAMR1 mice. To reveal the downstream signaling, we have measured the endoplasmic reticulum stress marker proteins along with some inflammatory and apoptosis markers and identified a significant increase in SAMP8 mice hearts than that of SAMR1. In addition, we have performed comet assay and revealed a significant DNA damage in the cardiomyocytes of SAMP8 mice when compared with SAMR1 mice. All these results demonstrate the role of 14-3-3η protein and the downstream mitogen-activated protein kinase-mediated endoplasmic reticulum stress, and apoptosis and DNA damage in aging-induced cardiac malfunction in SAMP8 mice. Thus targeting this signaling might be effective in treating age-related cardiac dysfunction. © 2016 BioFactors, 42(4):368-375, 2016.
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Affiliation(s)
- Remya Sreedhar
- Department of Clinical Pharmacology, Faculty of Pharmaceutical Sciences, Niigata University of Pharmacy and Applied Life Sciences, Niigata City, Japan
| | - Vijayasree V Giridharan
- Department of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center at Houston, Houston, TX
| | - Somasundaram Arumugam
- Department of Clinical Pharmacology, Faculty of Pharmaceutical Sciences, Niigata University of Pharmacy and Applied Life Sciences, Niigata City, Japan
| | - Vengadeshprabhu Karuppagounder
- Department of Clinical Pharmacology, Faculty of Pharmaceutical Sciences, Niigata University of Pharmacy and Applied Life Sciences, Niigata City, Japan
| | - Suresh S Palaniyandi
- Division of Hypertension and Vascular Research, Henry Ford Health System, Detroit, MI
| | - Prasanna Krishnamurthy
- Department of Cardiovascular Sciences, Houston Methodist Research Institute, Houston, TX
| | - Joao Quevedo
- Department of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center at Houston, Houston, TX
| | - Kenichi Watanabe
- Department of Clinical Pharmacology, Faculty of Pharmaceutical Sciences, Niigata University of Pharmacy and Applied Life Sciences, Niigata City, Japan
| | - Tetsuya Konishi
- NUPALS Liaison R/D Center, Niigata University of Pharmacy and Applied Life Sciences, Niigata, Japan
- International Collaborative Research Center, Changchun University of Chinese Medicine, Jingyue Economic Development District, Changchun, China
| | - Rajarajan A Thandavarayan
- Department of Clinical Pharmacology, Faculty of Pharmaceutical Sciences, Niigata University of Pharmacy and Applied Life Sciences, Niigata City, Japan
- Department of Cardiovascular Sciences, Houston Methodist Research Institute, Houston, TX
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Abstract
Molybdenum (Mo) is an essential trace element for animals and humans. However, the high dietary intake of Mo leads to disease conditions in heavy metal pollution areas. To the best of our knowledge, the effect of high levels of Mo on the apoptosis of hepatocyte in goats has not been investigated. Therefore, the aim of the present in vivo study was to investigate the impact of Mo on mitochondrial oxidative stress and apoptosis genes in the liver using real-time quantitative polymerase chain reaction (RT-qPCR) and transmission electron microscopy, respectively. Thirty-six healthy goats were randomly divided into three groups: two groups treated with ammonium molybdate [(NH4)6·Mo7O24·H2O] at 15 and 45 mg Mo kg(-1) BW, respectively, and a control group without treatment. Liver samples were collected from individual goats at different time intervals. The levels of oxidative stress in the mitochondrial membrane and expression of liver-related apoptosis genes, including Bcl-2, Cyt c, caspase-3, and Smac, were examined. The results demonstrated that the levels of superoxide dismutase (SOD) and catalase (CAT) expression were significantly down-regulated in liver cells, whereas malondialdehyde (MDA), nitric oxide (NO), and total nitric oxide synthase (T-NOS) expression was up-regulated (P < 0.01). The expression of Smac, Cyt c, and caspase-3 was significantly up-regulated, whereas Bcl-2 expression was down-regulated in liver cells (P < 0.01). In addition, histopathological examination revealed varying degrees of vacuolization, irregularity, nuclear fission, and mitochondrial swelling and high-density electrons in the cytoplasm of hepatocytes in groups treated with 15 and 45 mg Mo kg(-1) BW. Thus, these results suggested that high molybdenum induced hepatocyte apoptosis and might involve a mitochondrial pathway.
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Affiliation(s)
- Yu Zhuang
- Institute of Animal Population Health, College of Animal Science and Technology, JiangXi Agriculture University, N.O. 1101, Zhimin Avenue, Nanchang Economic and Technological Development District, Nanchang, 330045, People's Republic of China
| | - Ping Liu
- Institute of Animal Population Health, College of Animal Science and Technology, JiangXi Agriculture University, N.O. 1101, Zhimin Avenue, Nanchang Economic and Technological Development District, Nanchang, 330045, People's Republic of China
| | - Liqi Wang
- Institute of Animal Population Health, College of Animal Science and Technology, JiangXi Agriculture University, N.O. 1101, Zhimin Avenue, Nanchang Economic and Technological Development District, Nanchang, 330045, People's Republic of China
| | - Junrong Luo
- Institute of Animal Population Health, College of Animal Science and Technology, JiangXi Agriculture University, N.O. 1101, Zhimin Avenue, Nanchang Economic and Technological Development District, Nanchang, 330045, People's Republic of China
| | - Caiying Zhang
- Institute of Animal Population Health, College of Animal Science and Technology, JiangXi Agriculture University, N.O. 1101, Zhimin Avenue, Nanchang Economic and Technological Development District, Nanchang, 330045, People's Republic of China
| | - Xiaoquan Guo
- Institute of Animal Population Health, College of Animal Science and Technology, JiangXi Agriculture University, N.O. 1101, Zhimin Avenue, Nanchang Economic and Technological Development District, Nanchang, 330045, People's Republic of China
| | - Guoliang Hu
- Institute of Animal Population Health, College of Animal Science and Technology, JiangXi Agriculture University, N.O. 1101, Zhimin Avenue, Nanchang Economic and Technological Development District, Nanchang, 330045, People's Republic of China.
| | - Huabin Cao
- Institute of Animal Population Health, College of Animal Science and Technology, JiangXi Agriculture University, N.O. 1101, Zhimin Avenue, Nanchang Economic and Technological Development District, Nanchang, 330045, People's Republic of China.
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Sreedhar R, Arumugam S, Thandavarayan RA, Giridharan VV, Karuppagounder V, Pitchaimani V, Afrin R, Harima M, Nakamura T, Ueno K, Nakamura M, Suzuki K, Watanabe K. Toki-shakuyaku-san, a Japanese kampo medicine, reduces colon inflammation in a mouse model of acute colitis. Int Immunopharmacol 2015; 29:869-875. [DOI: 10.1016/j.intimp.2015.08.029] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Revised: 08/20/2015] [Accepted: 08/24/2015] [Indexed: 02/07/2023]
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20
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Sreedhar R, Arumugam S, Karuppagounder V, Thandavarayan RA, Giridharan VV, Pitchaimani V, Afrin MR, Harima M, Nakamura T, Nakamura M, Suzuki K, Watanabe K. Jumihaidokuto effectively inhibits colon inflammation and apoptosis in mice with acute colitis. Int Immunopharmacol 2015; 29:957-963. [DOI: 10.1016/j.intimp.2015.10.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Revised: 10/05/2015] [Accepted: 10/06/2015] [Indexed: 02/07/2023]
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Sreedhar R, Arumugam S, Thandavarayan RA, Giridharan VV, Karuppagounder V, Pitchaimani V, Afrin R, Harima M, Nakamura M, Suzuki K, Gurusamy N, Krishnamurthy P, Watanabe K. Depletion of cardiac 14-3-3η protein adversely influences pathologic cardiac remodeling during myocardial infarction after coronary artery ligation in mice. Int J Cardiol 2016; 202:146-53. [PMID: 26386943 DOI: 10.1016/j.ijcard.2015.08.142] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2015] [Revised: 08/15/2015] [Accepted: 08/19/2015] [Indexed: 11/21/2022]
Abstract
BACKGROUND/OBJECTIVES 14-3-3η protein, a dimeric phosphoserine-binding protein, provides protection against adverse cardiac remodeling during pressure-overload induced heart failure in mice. To identify its role in myocardial infarction (MI), we have used mice with cardio-specific expression of dominant-negative 14-3-3η protein mutant (DN14-3-3) and performed the surgical ligation of left anterior descending coronary artery. METHODS We have performed echocardiography to assess cardiac function, protein expression analysis using Western blotting, mRNA expression by real time-reverse transcription polymerase chain reaction and histopathological analyses. RESULTS DN14-3-3 mice with MI displayed reduced survival, left ventricular ejection fraction and fractional shortening. Interestingly, DN14-3-3 mice subjected to MI showed increased cardiac hypertrophy, inflammation, fibrosis and apoptosis as compared to their wild-type counterparts. Mechanistically, DN14-3-3 mice with MI exhibited activation of endoplasmic reticulum (ER) stress and markers of maladaptive cardiac remodeling. Cardiac regeneration marker expression also decreased drastically in the DN14-3-3 mice with MI. CONCLUSION Depletion of the 14-3-3η protein causes cardiac dysfunction and reduces survival in mice with MI, probably via exacerbation of ER stress and death signaling pathways and suppression of cardiac regeneration. Thus, identification of drugs that can modulate cardiac 14-3-3η protein levels may probably provide a novel protective therapy for heart failure.
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Thandavarayan RA, Garikipati VNS, Joladarashi D, Suresh Babu S, Jeyabal P, Verma SK, Mackie AR, Khan M, Arumugam S, Watanabe K, Kishore R, Krishnamurthy P. Sirtuin-6 deficiency exacerbates diabetes-induced impairment of wound healing. Exp Dermatol 2015; 24:773-8. [PMID: 26010430 DOI: 10.1111/exd.12762] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/19/2015] [Indexed: 12/29/2022]
Abstract
Delayed wound healing is one of the major complications in diabetes and is characterized by chronic proinflammatory response, and abnormalities in angiogenesis and collagen deposition. Sirtuin family proteins regulate numerous pathophysiological processes, including those involved in promotion of longevity, DNA repair, glycolysis and inflammation. However, the role of sirtuin 6 (SIRT6), a NAD+-dependent nuclear deacetylase, in wound healing specifically under diabetic condition remains unclear. To analyse the role of SIRT6 in cutaneous wound healing, paired 6-mm stented wound was created in diabetic db/db mice and injected siRNA against SIRT6 in the wound margins (transfection agent alone and nonsense siRNA served as controls). Wound time to closure was assessed by digital planimetry, and wounds were harvested for histology, immunohistochemistry and Western blotting. SIRT6-siRNA-treated diabetic wound showed impaired healing, which was associated with reduced capillary density (CD31-staining vessels) when compared to control treatment. Interestingly, SIRT6 deficiency decreased vascular endothelial growth factor expression and proliferation markers in the wounds. Furthermore, SIRT6 ablation in diabetic wound promotes nuclear factor-κB (NF-κB) activation resulting in increased expression of proinflammatory markers (intercellular adhesion molecule-1, vascular cell adhesion molecule-1, tumor necrosis factor-α and interleukin-1β) and increased oxidative stress. Collectively, our findings demonstrate that loss of SIRT6 in cutaneous wound aggravates proinflammatory response by increasing NF-κB activation, oxidative stress and decrease in angiogenesis in the diabetic mice. Based on these findings, we speculate that the activation of SIRT6 signalling might be a potential therapeutic approach for promoting wound healing in diabetics.
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Affiliation(s)
- Rajarajan A Thandavarayan
- Department of Cardiovascular Sciences, Center for Cardiovascular Regeneration, Houston Methodist Research Institute, Houston, TX, USA
| | | | - Darukeshwara Joladarashi
- Department of Cardiovascular Sciences, Center for Cardiovascular Regeneration, Houston Methodist Research Institute, Houston, TX, USA
| | - Sahana Suresh Babu
- Department of Cardiovascular Sciences, Center for Cardiovascular Regeneration, Houston Methodist Research Institute, Houston, TX, USA
| | - Prince Jeyabal
- Department of Cardiovascular Sciences, Center for Cardiovascular Regeneration, Houston Methodist Research Institute, Houston, TX, USA
| | - Suresh K Verma
- Center for Translational Medicine, Temple University School of Medicine, Philadelphia, PA, USA
| | - Alexander R Mackie
- Feinberg Cardiovascular Research Institute, Northwestern University, Chicago, IL, USA
| | - Mohsin Khan
- Center for Translational Medicine, Temple University School of Medicine, Philadelphia, PA, USA
| | - Somasundaram Arumugam
- Department of Clinical Pharmacology, Niigata University of Pharmacy and Applied Life Sciences, Niigata, Japan
| | - Kenichi Watanabe
- Department of Clinical Pharmacology, Niigata University of Pharmacy and Applied Life Sciences, Niigata, Japan
| | - Raj Kishore
- Center for Translational Medicine, Temple University School of Medicine, Philadelphia, PA, USA
| | - Prasanna Krishnamurthy
- Department of Cardiovascular Sciences, Center for Cardiovascular Regeneration, Houston Methodist Research Institute, Houston, TX, USA.,Cell and Developmental Biology, Department of Cardiothoracic Surgery, Weill Cornell Medical College of Cornell University, New York, NY, USA
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23
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Liu T, Zhou Y, Wang JY, Su Q, Tang ZL, Liu YC, Li L. Coronary Microembolization Induces Cardiomyocyte Apoptosis in Swine by Activating the LOX-1-Dependent Mitochondrial Pathway and Caspase-8-Dependent Pathway. J Cardiovasc Pharmacol Ther 2015; 21:209-18. [PMID: 26275408 DOI: 10.1177/1074248415599265] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2015] [Accepted: 06/21/2015] [Indexed: 01/20/2023]
Abstract
BACKGROUND Cardiomyocyte apoptosis by coronary microembolization (CME) contributes to myocardial dysfunction, in which mitochondrial pathway and death receptor pathway are activated. Lectin-like oxidized low-density lipoprotein receptor 1 (LOX-1) is a membrane protein involved in apoptosis. The study aimed to explore the role of LOX-1 in the activation of these 2 major apoptotic pathways. METHODS Twenty Bama miniature swine were randomized into 4 groups (n = 5 per group). The groups were Sham, CME, LOX-1 small-interfering RNA (siRNA), and control siRNA. Microspheres were injected into the left anterior descending artery of swine to establish CME model. Twelve hours after operation, cardiac function, serum c-troponin I level, microinfarct, and apoptotic index were examined. The levels of LOX-1, Bcl-2, Bax, cytochrome c as well as cleaved caspase 9, -8, and -3 were detected. RESULTS Myocardial dysfunction, enhanced serum c-troponin I, microinfarct, and apoptosis were induced following CME. Moreover, CME induced increased expression of LOX-1, Bax, cytochrome c, cleaved caspase 9, -8, and -3 as well as decreased Bcl-2 expression levels. The LOX-1 siRNA reversed these effects by CME except cleaved caspase 8 expression, while the control siRNA had no effect. CONCLUSION Coronary microembolization induces cardiomyocyte apoptosis via the LOX-1-dependent mitochondrial pathway and caspase 8-dependent pathway.
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Affiliation(s)
- Tao Liu
- Department of Cardiology, the First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - You Zhou
- Department of Cardiology, Minzu Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, China
| | - Jiang-You Wang
- Department of Cardiology, Wuhan Asia Heart Hospital, Wuhan, Hubei, China
| | - Qiang Su
- Department of Cardiology, the First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Zhong-Li Tang
- Department of Cardiology, the First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Yang-Chun Liu
- Department of Cardiology, the First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
| | - Lang Li
- Department of Cardiology, the First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China
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