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Cui X, Li Z, Yuan Y. Knockdown of FOXO4 protects against OGD/R‑induced cerebral microvascular endothelial cell injury and regulates the AMPK/Nrf2/HO‑1 pathway through transcriptional activation of CTRP6. Exp Ther Med 2024; 27:94. [PMID: 38313581 PMCID: PMC10831799 DOI: 10.3892/etm.2024.12382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 11/29/2023] [Indexed: 02/06/2024] Open
Abstract
Cerebral ischemia is a type of cerebrovascular disease with high disability and mortality rates. The expression of forkhead box protein O4 (FOXO4) in the brain is increased following traumatic brain injury. To the best of our knowledge, however, the role of FOXO4 as well as its mechanism in cerebral ischemia has not been reported so far. For the establishment of an in vitro cellular injury model, human brain microvascular endothelial HCMEC/D3 cells were induced by oxygen-glucose deprivation/reoxygenation (OGD/R). mRNA and protein expressions of FOXO4 and C1q/tumor necrosis factor-related protein 6 (CTRP6) in OGD/R-induced HCMEC/D3 cells were detected by reverse transcription-quantitative (RT-q)PCR and western blotting. The transfection efficacy of small interfering (si)- and overexpression (Ov)-FOXO4 and si-CTRP6 was assessed using RT-qPCR and western blotting. Cell Counting Kit-8 and TUNEL assay were used to assess viability and apoptosis of HCMEC/D3 cells induced by OGD/R, respectively. A FITC-Dextran assay kit was applied to determine endothelial permeability and immunofluorescence assay was used for the measurement of the tight junction protein zonula occludens-1. The levels of oxidative stress markers and inflammatory cytokines were assessed with corresponding assay kits. The binding sites of transcription factor, FOXO4 and CTRP6 promoter were predicted using HDOCK SERVER. Luciferase reporter assay was used to detect the activity of the CTRP6 promoter while chromatin immunoprecipitation assay was used to evaluate the binding ability of the FOXO4 and CTRP6 promoter. Western blotting was used for the detection of apoptosis- and AMPK/Nrf2/heme oxygenase-1 (HO-1) pathway-associated proteins, along with tight junction proteins. The expression of FOXO4 was increased in OGD/R-induced HCMEC/D3 cells. After interfering with FOXO4 in cells, the viability of the OGD/R-induced HCMEC/D3 cells was increased while apoptosis was decreased. Furthermore, FOXO4 interference improved cellular barrier dysfunction but inhibited oxidative stress and the inflammatory response in HCMEC/D3 cells induced by OGD/R. FOXO4 knockdown regulated CTRP6 transcription in HCMEC/D3 cells. Knockdown of FOXO4 regulated expression of CTRP6 and protected OGD/R-induced HCMEC/D3 cell injury via the AMPK/Nrf2/HO-1 pathway. The present study indicated that FOXO4 knockdown activated CTRP6 to protect against cerebral microvascular endothelial cell injury induced by OGD/R via the AMPK/Nrf2/HO-1 pathway.
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Affiliation(s)
- Xiangting Cui
- Clinical Laboratory, Tianjin Medical University General Hospital, Tianjin 300052, P.R. China
- Clinical Laboratory, Binhai Hospital of Tianjin Medical University General Hospital, Tianjin 300480, P.R. China
| | - Zhili Li
- Clinical Laboratory, Tianjin Medical University General Hospital, Tianjin 300052, P.R. China
| | - Yuhua Yuan
- Clinical Laboratory, Tianjin Medical University General Hospital, Tianjin 300052, P.R. China
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Zhang T, Xu L, Guo X, Tao H, Liu Y, Liu X, Zhang Y, Meng X. The potential of herbal drugs to treat heart failure: The roles of Sirt1/AMPK. J Pharm Anal 2024; 14:157-176. [PMID: 38464786 PMCID: PMC10921247 DOI: 10.1016/j.jpha.2023.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 08/09/2023] [Accepted: 09/05/2023] [Indexed: 03/12/2024] Open
Abstract
Heart failure (HF) is a highly morbid syndrome that seriously affects the physical and mental health of patients and generates an enormous socio-economic burden. In addition to cardiac myocyte oxidative stress and apoptosis, which are considered mechanisms for the development of HF, alterations in cardiac energy metabolism and pathological autophagy also contribute to cardiac abnormalities and ultimately HF. Silent information regulator 1 (Sirt1) and adenosine monophosphate-activated protein kinase (AMPK) are nicotinamide adenine dinucleotide (NAD+)-dependent deacetylases and phosphorylated kinases, respectively. They play similar roles in regulating some pathological processes of the heart through regulating targets such as peroxisome proliferator-activated receptor γ coactivator 1α (PGC-1α), protein 38 mitogen-activated protein kinase (p38 MAPK), peroxisome proliferator-activated receptors (PPARs), and mammalian target of rapamycin (mTOR). We summarized the synergistic effects of Sirt1 and AMPK in the heart, and listed the traditional Chinese medicine (TCM) that exhibit cardioprotective properties by modulating the Sirt1/AMPK pathway, to provide a basis for the development of Sirt1/AMPK activators or inhibitors for the treatment of HF and other cardiovascular diseases (CVDs).
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Affiliation(s)
- Tao Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Lei Xu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Xiaowei Guo
- State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Honglin Tao
- State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Yue Liu
- School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Xianfeng Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Yi Zhang
- School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Xianli Meng
- State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
- Meishan Hospital of Chengdu University of Traditional Chinese Medicine, Meishan, Sichuan, 620032, China
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Benak D, Holzerova K, Hrdlicka J, Kolar F, Olsen M, Karelson M, Hlavackova M. Epitranscriptomic regulation in fasting hearts: implications for cardiac health. RNA Biol 2024; 21:1-14. [PMID: 38326277 PMCID: PMC10854364 DOI: 10.1080/15476286.2024.2307732] [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] [Accepted: 01/16/2024] [Indexed: 02/09/2024] Open
Abstract
Cardiac tolerance to ischaemia can be increased by dietary interventions such as fasting, which is associated with significant changes in myocardial gene expression. Among the possible mechanisms of how gene expression may be altered are epigenetic modifications of RNA - epitranscriptomics. N6-methyladenosine (m6A) and N6,2'-O-dimethyladenosine (m6Am) are two of the most prevalent modifications in mRNA. These methylations are reversible and regulated by proteins called writers, erasers, readers, and m6A-repelled proteins. We analysed 33 of these epitranscriptomic regulators in rat hearts after cardioprotective 3-day fasting using RT-qPCR, Western blot, and targeted proteomic analysis. We found that the most of these regulators were changed on mRNA or protein levels in fasting hearts, including up-regulation of both demethylases - FTO and ALKBH5. In accordance, decreased methylation (m6A+m6Am) levels were detected in cardiac total RNA after fasting. We also identified altered methylation levels in Nox4 and Hdac1 transcripts, both of which play a role in the cytoprotective action of ketone bodies produced during fasting. Furthermore, we investigated the impact of inhibiting demethylases ALKBH5 and FTO in adult rat primary cardiomyocytes (AVCMs). Our findings indicate that inhibiting these demethylases reduced the hypoxic tolerance of AVCMs isolated from fasting rats. This study showed that the complex epitranscriptomic machinery around m6A and m6Am modifications is regulated in the fasting hearts and might play an important role in cardiac adaptation to fasting, a well-known cardioprotective intervention.
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Affiliation(s)
- Daniel Benak
- Laboratory of Developmental Cardiology, Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic
- Department of Physiology, Faculty of Science, Charles University, Prague, Czech Republic
| | - Kristyna Holzerova
- Laboratory of Developmental Cardiology, Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic
| | - Jaroslav Hrdlicka
- Laboratory of Developmental Cardiology, Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic
| | - Frantisek Kolar
- Laboratory of Developmental Cardiology, Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic
| | - Mark Olsen
- Department of Pharmaceutical Sciences, College of Pharmacy-Glendale, Midwestern University, Glendale, Arizona, USA
| | - Mati Karelson
- Institute of Chemistry, University of Tartu, Tartu, Estonia
| | - Marketa Hlavackova
- Laboratory of Developmental Cardiology, Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic
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Shi L, Zhang A, Liu H, Wang H. Deletion of the foxO4 Gene Increases Hypoxia Tolerance in Zebrafish. Int J Mol Sci 2023; 24:ijms24108942. [PMID: 37240290 DOI: 10.3390/ijms24108942] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 04/23/2023] [Accepted: 04/24/2023] [Indexed: 05/28/2023] Open
Abstract
Oxygen homeostasis is an important organizing principle for understanding development, physiology, disease, and evolution. Under various physiological and pathological states, organisms experience oxygen deficiency or hypoxia. FoxO4 has been recognized as an important transcriptional regulator involved in a variety of cellular functions, including proliferation, apoptosis, differentiation, and stress resistance, but its role in hypoxia adaptation mechanisms in animals is not so clear. To explore the role of foxO4 in the hypoxia response, we detected the expression of foxO4 and the regulatory relationship between Hif1α and foxO4 under hypoxic conditions. It was found that the expression of foxO4 was up-regulated in ZF4 cells and zebrafish tissues after hypoxia treatment, and Hif1α could directly target the HRE of the foxO4 promoter to regulate foxO4 transcription, indicating that foxO4 was involved in the hypoxia response by the Hif1α-mediated pathway. Furthermore, we obtained foxO4 knockout zebrafish and found that the disruption of foxO4 increased the tolerance to hypoxia. Further research found that the oxygen consumption and locomotor activity of foxO4-/- zebrafish were lower than those of WT zebrafish, as was true for NADH content, NADH/NAD+ rate, and expression of mitochondrial respiratory chain complex-related genes. This suggests that disruption of foxO4 reduced the oxygen demand threshold of the organism, which explained why the foxO4-/- zebrafish were more tolerant to hypoxia than WT zebrafish. These results will provide a theoretical basis for further study of the role of foxO4 in the hypoxia response.
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Affiliation(s)
- Linlin Shi
- Key Lab of Freshwater Animal Breeding/Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, College of Fishery, Huazhong Agricultural University, Wuhan 430070, China
| | - Axin Zhang
- Key Lab of Freshwater Animal Breeding/Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, College of Fishery, Huazhong Agricultural University, Wuhan 430070, China
| | - Hong Liu
- Key Lab of Freshwater Animal Breeding/Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, College of Fishery, Huazhong Agricultural University, Wuhan 430070, China
- Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Wuhan 430070, China
| | - Huanling Wang
- Key Lab of Freshwater Animal Breeding/Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction, Ministry of Education, College of Fishery, Huazhong Agricultural University, Wuhan 430070, China
- Engineering Research Center of Green Development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education, Wuhan 430070, China
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Ke J, Zhang DG, Liu SZ, Luo Z. Functional analysis of selenok, selenot and selenop promoters and their regulation by selenium in yellow catfish Pelteobagrus fulvidraco. Gene 2023; 873:147461. [PMID: 37149273 DOI: 10.1016/j.gene.2023.147461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 04/25/2023] [Accepted: 05/01/2023] [Indexed: 05/08/2023]
Abstract
The selenok, selenot and selenop are three key selenoproteins involved in stress response. Our study, using the yellow catfish Pelteobagrus fulvidraco as the experimental animal, obtained the 1993-bp, 2000-bp and 1959-bp sequences of selenok, selenot and selenop promoters, respectively, and predicted the binding sites of several transcriptional factors on their promoters, such as Forkhead box O 4 (FoxO4), activating transcription factor 4 (ATF4), Kruppel-like factor 4 (KLF4) and nuclear factor erythroid 2-related factor 2 (NRF2). Selenium (Se) increased the activities of the selenok, selenot and selenop promoters. FoxO4 and Nrf2 can directly bind with selenok promoter and controlled selenok promoter activities positively; KLF4 and Nrf2 can directly bind with selenot promoter and controlled selenot promoter activities positively; FoxO4 and ATF4 can directly bind to selenop promoter and regulated selenop promoter activities positively. Se promoted FoxO4 and Nrf2 binding to selenok promoter, KLF4 and Nrf2 binding to selenot promoter, and FoxO4 and ATF4 binding to selenop promoter. Thus, we provide the first evidence for FoxO4 and Nrf2 bindnig elements in selenok promoter, KLF4 and Nrf2 binding elements in selenot promoter, and FoxO4 and ATF4 binding elements in selenop promoter, and offer novel insight into regulatory mechanism of these selenoproteins induced by Se.
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Affiliation(s)
- Jiang Ke
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agriculture University, Wuhan 430070, China
| | - Dian-Guang Zhang
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agriculture University, Wuhan 430070, China
| | - Sheng-Zan Liu
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agriculture University, Wuhan 430070, China
| | - Zhi Luo
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agriculture University, Wuhan 430070, China; Shenzhen Institute of Nutrition and Health, Huazhong Agricultural University; Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China.
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Wang Y, Liu X, Jing H, Ren H, Xu S, Guo M. Trimethyltin induces apoptosis and necroptosis of mouse liver by oxidative stress through YAP phosphorylation. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 248:114327. [PMID: 36434999 DOI: 10.1016/j.ecoenv.2022.114327] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 11/10/2022] [Accepted: 11/21/2022] [Indexed: 06/16/2023]
Abstract
Trimethyltin (TMT) is widely used as a major component of plastic stabilizers in agriculture and industry, and can accumulate in large quantities in the liver. To investigate the relationship between liver tissue damage induced by TMT exposure and YAP phosphorylation in mice, we gave the mice drinking water containing 0.01 mg/mL TMT for 14 days to establish an in vivo experimental model, and continuously treated AML12 cells with 20 μM TMT for 24 h to establish an in vitro experimental model. Transcriptomics revealed that TMT exposure altered 62,466 apparently diversely expressed genes, including 1197 upregulated and 899 downregulated genes, and that enrichment of the Hippo pathway occurred. Moreover, western blotting (WB) and quantitative real-time PCR (qRTPCR) results showed that TMT exposure triggered an increase in the expression of P-YAP, apoptosis and necroptosis-interrelated genes, and a decrease in Bcl-2 expression in mouse livers tissues and AML12 cells. The expression of P-YAP was significantly suppressed in the TRULI-treated TMT-exposed AML12 cells, while oxidative stress levels and damage were also significantly attenuated. In conclusion, TMT triggers YAP phosphorylation to induce oxidative stress inducing apoptosis and necroptosis in mouse livers tissues. Our results confirm the liver toxic effect and specific mechanism of TMT.
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Affiliation(s)
- Yuqi Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Xiaojing Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Hongyuan Jing
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Haoran Ren
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Shiwen Xu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China
| | - Mengyao Guo
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China; Key Laboratory of the Provincial Education Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, PR China.
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Wang X, Liao H, Liu Y, Kang Y, Tu Q, Li Z, Kang Y, Sheng P, Zhang Z. Aspirin reverses inflammatory suppression of chondrogenesis by stabilizing YAP. Cell Prolif 2022; 56:e13380. [PMID: 36495056 PMCID: PMC10068956 DOI: 10.1111/cpr.13380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 11/09/2022] [Accepted: 11/29/2022] [Indexed: 12/14/2022] Open
Abstract
Bone marrow mesenchymal stem cells (BMMSCs) transplantation methods are promising candidates for osteoarthritis (OA) treatment. However, inflammatory factors (such as TNF-α) that occur at cell transplantation sites are critical factors that impair the effectiveness of the treatment. Previous studies have shown that aspirin (AS) had a regulatory role in stem cell differentiation. However, little is known about the role of AS on the chondrogenesis of BMMSCs. The purpose of this study is to explore the protective role of AS against the negative effects of TNF-α on BMMSC chondrogenesis. In this study, we investigated the effects of AS and TNF-α on BMMSCs chondrogenesis by performing the Alcian Blue staining, safranin O-fast green staining, haematoxylin and eosin staining, and immunohistochemical staining, as well as real-time RT-PCR and western blot assays. Our results demonstrated that TNF-α inhibited chondrogenic differentiation of BMMSCs by disrupting the balance of cartilage metabolism and promoting oxidative stress in BMMSCs, while AS treatment attenuated these effects. Furthermore, a detailed molecular mechanistic analysis indicated that Yes-associated protein (YAP) played a critical regulatory role in this process. In addition, AS treatment mitigated the progression of cartilage degeneration in a mouse destabilization of the medial meniscus (DMM) model. AS alleviated the inhibitory effect of TNF-α on chondrogenesis of BMMSCs by stabilizing YAP, which may provide new therapeutic strategies for OA treatment.
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Affiliation(s)
- Xudong Wang
- Department of Orthopedics the First Affiliated Hospital of Sun Yat‐sen University Guangzhou Guangdong China
- Guangdong Provincial Key Laboratory of Orthopedics and Traumatology the First Affiliated Hospital of Sun Yat‐sen University Guangzhou Guangdong China
| | - Hongyi Liao
- Department of Orthopedics the First Affiliated Hospital of Sun Yat‐sen University Guangzhou Guangdong China
- Guangdong Provincial Key Laboratory of Orthopedics and Traumatology the First Affiliated Hospital of Sun Yat‐sen University Guangzhou Guangdong China
| | - Yong Liu
- Department of Orthopedics the First Affiliated Hospital of Sun Yat‐sen University Guangzhou Guangdong China
- Guangdong Provincial Key Laboratory of Orthopedics and Traumatology the First Affiliated Hospital of Sun Yat‐sen University Guangzhou Guangdong China
| | - Yunze Kang
- Department of Orthopedics the First Affiliated Hospital of Sun Yat‐sen University Guangzhou Guangdong China
- Guangdong Provincial Key Laboratory of Orthopedics and Traumatology the First Affiliated Hospital of Sun Yat‐sen University Guangzhou Guangdong China
| | - Qingqiang Tu
- Department of Orthopedics the First Affiliated Hospital of Sun Yat‐sen University Guangzhou Guangdong China
- Guangdong Provincial Key Laboratory of Orthopedics and Traumatology the First Affiliated Hospital of Sun Yat‐sen University Guangzhou Guangdong China
| | - Zhiwen Li
- Department of Orthopedics the First Affiliated Hospital of Sun Yat‐sen University Guangzhou Guangdong China
- Guangdong Provincial Key Laboratory of Orthopedics and Traumatology the First Affiliated Hospital of Sun Yat‐sen University Guangzhou Guangdong China
| | - Yan Kang
- Department of Orthopedics the First Affiliated Hospital of Sun Yat‐sen University Guangzhou Guangdong China
- Guangdong Provincial Key Laboratory of Orthopedics and Traumatology the First Affiliated Hospital of Sun Yat‐sen University Guangzhou Guangdong China
| | - Puyi Sheng
- Department of Orthopedics the First Affiliated Hospital of Sun Yat‐sen University Guangzhou Guangdong China
- Guangdong Provincial Key Laboratory of Orthopedics and Traumatology the First Affiliated Hospital of Sun Yat‐sen University Guangzhou Guangdong China
| | - Ziji Zhang
- Department of Orthopedics the First Affiliated Hospital of Sun Yat‐sen University Guangzhou Guangdong China
- Guangdong Provincial Key Laboratory of Orthopedics and Traumatology the First Affiliated Hospital of Sun Yat‐sen University Guangzhou Guangdong China
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Jin Y, Liu G, Yu Q, Ma S, Chang M. Serum Extracellular Vesicles Attenuate Cardiomyocyte Injury Induced by Hypoxic/Reoxygenation by Regulating miR-1229-5p. TOHOKU J EXP MED 2022; 258:35-41. [PMID: 35705319 DOI: 10.1620/tjem.2022.j048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Affiliation(s)
- Yinhao Jin
- Department of Cardiology, The First Affiliated Hospital of Qiqihar Medical College
| | - Guiqing Liu
- Department of Cardiology, The First Affiliated Hospital of Qiqihar Medical College
| | - Qianqian Yu
- Department of Cardiology, The First Affiliated Hospital of Qiqihar Medical College
| | - Shumin Ma
- Department of Cardiology, The First Affiliated Hospital of Qiqihar Medical College
| | - Ming Chang
- Department of Cardiology, The First Affiliated Hospital of Qiqihar Medical College
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Zeng X, Peng Y, Wang Y, Kang K. C1q/tumor necrosis factor-related protein-3 (CTRP3) activated by forkhead box O4 (FOXO4) down-regulation protects retinal pericytes against high glucose-induced oxidative damage through nuclear factor erythroid 2-related factor 2 (Nrf2)/Nuclear factor-kappaB (NF-κB) signaling. Bioengineered 2022; 13:6080-6091. [PMID: 35196182 PMCID: PMC8974204 DOI: 10.1080/21655979.2022.2031413] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Diabetic retinopathy (DR) remains a major cause of blindness among diabetes mellitus patients. C1q/tumor necrosis factor-related protein-3 (CTRP3) is a novel adipokine which is associated with multiple types of metabolism. Nevertheless, little is known about the role of CTRP3 in high glucose (HG)-induced human retinal pericytes (HRPs). This study set out to assess the influence of CTRP3 on HG-induced HRPs and elucidate the latent regulatory mechanism. RT-qPCR and Western blot were to analyze CTRP3 and forkhead box O4 (FOXO4) expression. Western blot was also utilized to detect the protein levels of apoptosis-related factors and nuclear factor erythroid 2-related factor 2 (Nrf2)/Nuclear factor-kappaB (NF-κB) signaling-related factors. CCK-8 was to measure cell proliferation while TUNEL assay was to estimate cell apoptosis. Levels of oxidative stress biomarkers including manganese (MnSOD), catalase (CAT) and malonedialdehyde (MDA) were evaluated by the corresponding kits. JASPAR database, ChIP and luciferase reporter assay were to verify the interaction between FOXO4 and CTRP3 promoter. The experimental results uncovered that CTRP3 expression was decreased in HG-stimulated HRPs. Moreover, CTRP3 overexpression strengthened the viability while abrogated the apoptosis and oxidative stress of HG-induced HRPs. Furthermore. FOXO4 was up-regulated in HG-induced HRPs. Besides, FOXO4 bond to CTRP3 promoter and inhibited CTRP3 transcription to modulate the Nrf2/NF-κB signaling pathway. FOXO4 up-regulation reversed the influence of CTRP3 elevation on the proliferation, apoptosis and oxidative stress of HG-induced HRPs. To be summarized, CTRP3 negatively modulated by FOXO4 prevented HG-induced oxidative damage in DR via modulation of Nrf2/NF-κB signaling.
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Affiliation(s)
- XiuYa Zeng
- Department of Clinical Laboratory, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, China.,Xiamen Key Laboratory of Genetic Testing, Xiamen, China
| | - YouYuan Peng
- Department of Hepatobiliary Surgery, Zhongshan Hospital of Xiamen University, Xiamen, China
| | - YanFeng Wang
- Department of Clinical Laboratory, The First Affiliated Hospital of Xiamen University, Xiamen, Fujian, China.,Xiamen Key Laboratory of Genetic Testing, Xiamen, China
| | - KeMing Kang
- Department of Ophthalmic Fundus Disease, Xiamen Eye Center of Xiamen University, Xiamen, China
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