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Zhang Y, Zhang Y, Song Q, Wang Y, Pan J. The role of Vav3 expression for inflammation and cell death during experimental myocardial infarction. Clinics (Sao Paulo) 2023; 78:100273. [PMID: 37591108 PMCID: PMC10450409 DOI: 10.1016/j.clinsp.2023.100273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 07/18/2023] [Accepted: 07/27/2023] [Indexed: 08/19/2023] Open
Abstract
OBJECTIVES Myocardial Infarction (MI) is the leading cause of chronic heart failure. Previous studies have suggested that Vav3, a receptor protein tyrosine kinase signal transducer, is associated with a variety of cellular signaling processes such as cell morphology regulation and cell transformation with oncogenic activity. However, the mechanism of Vav3-mediated MI development requires further investigation. METHOD Here, The authors established an MI rat model by ligating the anterior descending branch of the left coronary artery, and an MI cell model by treating cardiomyocytes with H2O2. Microarray analysis was conducted to identify genes with differential expression in heart tissues relevant to MI occurrence and development. Vav3 was thus selected for further investigation. RESULTS Vav3 downregulation was observed in MI heart tissue and H2O2-treated cardiomyocytes. Administration of Lentiviral Vav3 (LV-VAV3) in MI rats upregulated Vav3 expression in MI heart tissue. Restoration of Vav3 expression reduced infarct area and ameliorated cardiac function in MI rats. Cardiac inflammation, apoptosis, and upregulation of NFκB signal in heart tissue of MI animals were assessed using ELISA, TUNEL staining, real-time PCR, and WB. Vav3 overexpression reduced cardiac inflammation and apoptosis and inhibited NFκB expression and activation. Betulinic Acid (BA) was then used to re-activate NFκB in Vav3-overexpressed and H2O2-induced cardiomyocytes. The expression of P50 and P65, as well as nuclear P65, was significantly increased by BA exposure. CONCLUSIONS Vav3 might serve as a target to reduce ischemia damage by suppressing the inflammation and apoptosis of cardiomyocytes.
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Affiliation(s)
- Yan Zhang
- Department of Emergency, Yantaishan Hospital, Shandong, China
| | - Yonglei Zhang
- Department of Emergency, Yantaishan Hospital, Shandong, China
| | - Qin Song
- Department of Emergency, Yantaishan Hospital, Shandong, China
| | - Yuanxin Wang
- Department of Emergency, Yantaishan Hospital, Shandong, China
| | - Jiming Pan
- Department of Emergency, Yantaishan Hospital, Shandong, China.
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RIP140-Mediated NF-κB Inflammatory Pathway Promotes Metabolic Dysregulation in Retinal Pigment Epithelium Cells. Curr Issues Mol Biol 2022; 44:5788-5801. [DOI: 10.3390/cimb44110393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 11/09/2022] [Accepted: 11/16/2022] [Indexed: 11/22/2022] Open
Abstract
Metabolic dysregulation of the retinal pigment epithelium (RPE) has been implicated in age-related macular degeneration (AMD). However, the molecular regulation of RPE metabolism remains unclear. RIP140 is known to affect oxidative metabolism and mitochondrial biogenesis by negatively controlling mitochondrial pathways regulated by PPAR-γ co-activator-1 α(PGC-1α). This study aims to disclose the effect of RIP140 on the RPE metabolic program in vitro and in vivo. RIP140 protein levels were assayed by Western blotting. Gene expression was tested using quantitative real-time PCR (qRT-PCR), ATP production, and glycogen concentration assays, and the release of inflammatory factors was analyzed by commercial kits. Mice photoreceptor function was measured by electroretinography (ERG). In ARPE-19 cells, RIP140 overexpression changed the expression of the key metabolic genes and lipid processing genes, inhibited mitochondrial ATP production, and enhanced glycogenesis. Moreover, RIP140 overexpression promoted the translocation of NF-κB and increased the expression and production of IL-1β, IL-6, and TNF-α in ARPE-19 cells. Importantly, we also observed the overexpression of RIP140 through adenovirus delivery in rat retinal cells, which significantly decreased the amplitude of the a-wave and b-wave measured by ERG assay. Therapeutic strategies that modulate the activity of RIP140 could have clinical utility for the treatment of AMD in terms of preventing RPE degeneration.
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Song Z, Wang X, He L, Chen L, Ren Z, Song S. Suppression of lysosomal-associated protein transmembrane 5 ameliorates cardiac function and inflammatory response by inhibiting the nuclear factor-kappa B (NF-κB) pathway after myocardial infarction in mice. Exp Anim 2022; 71:415-425. [PMID: 35491099 PMCID: PMC9671761 DOI: 10.1538/expanim.22-0008] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 04/03/2022] [Indexed: 09/29/2023] Open
Abstract
Myocardial infarction (MI) as the remarkable presentation of coronary artery disease is still a reason for morbidity and mortality in worldwide. Lysosomal-associated protein transmembrane 5 (LAPTM5) is a lysosomal-related protein found in hematopoietic tissues and has been confirmed as a positive regulator of pro-inflammatory pathways in macrophages. However, the role of LAPTM5 in MI remains unknown. In this study, we found that both mRNA and protein expression levels of LAPTM5 were significantly elevated in MI mice. Suppression of LAPTM5 in myocardial tissues decreased cardiac fibrosis and improved cardiac function after MI. At the molecular level, downregulated LAPTM5 dramatically suppressed the macrophage activation and inflammatory response via inhibiting the activation of the nuclear factor-kappa B (NF-κB) pathway. Collectively, suppression of LAPTM5 in myocardial tissues inhibits the pro-inflammatory response and the cardiac dysfunction caused by MI. This study indicated that LAPTM5 as a pro-inflammatory factor plays a crucial role in MI disease.
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Affiliation(s)
- Zhanchun Song
- Department of Cardiology, Fushun Central Hospital, No. 5, Middle Section of Xincheng Road, Shuncheng District, Fushun, Liaoning, 113006, P.R. China
| | - Xiaozeng Wang
- Department of Cardiology, The General Hospital of Northern Theater Command, No. 17, Middle Section of Hunnan Road, Hunnan District, Shenyang, Liaoning, 110000, P.R. China
| | - Lianqi He
- Department of Cardiology, Fushun Central Hospital, No. 5, Middle Section of Xincheng Road, Shuncheng District, Fushun, Liaoning, 113006, P.R. China
| | - Liang Chen
- Department of General Surgery, Fushun Central Hospital, No. 5, Middle Section of Xincheng Road, Shuncheng District, Fushun, Liaoning, 113006, P.R. China
| | - Zhichao Ren
- Department of Cardiology, Fushun Central Hospital, No. 5, Middle Section of Xincheng Road, Shuncheng District, Fushun, Liaoning, 113006, P.R. China
| | - Siyu Song
- Department of Cardiology, Fushun Central Hospital, No. 5, Middle Section of Xincheng Road, Shuncheng District, Fushun, Liaoning, 113006, P.R. China
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Huang M, Li J, Bai J, Du X, Guo H, Wang B, Xu J. NRIP1 aggravates lung injury caused by Pseudomonas aeruginosa in mice by increasing PIAS1 ubiquitination. Aging (Albany NY) 2022; 14:3529-3539. [PMID: 35460552 PMCID: PMC9085225 DOI: 10.18632/aging.204027] [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: 01/19/2022] [Accepted: 04/12/2022] [Indexed: 11/25/2022]
Abstract
Recently, evidence has shown that nuclear receptor interacting protein 1 (NRIP1) is involved in acute lung injury (ALI) progression, but the specific mechanism remains unclear. Pseudomonas aeruginosa (PA)-treated TC-1 cells were transfected with pcDNA-NRIP1 or si-NRIP1, and we found that overexpression of NRIP1 inhibited cell viability and promoted cell apoptosis and secretion of inflammatory factors, and transfection of si-NRIP1 reversed these effects. Furthermore, online bioinformatics analysis and co-immunoprecipitation assay results indicated that NRIP1 could bind to Ubiquitin Conjugating Enzyme E2I (UBE2I), and promoted UBE2I expression. Next, the PA-treated TC-1 cells were transfected with si-NRIP1 alone or together with pcDNA-UBE2I, and we observed that transfection with si-NRIP1 inhibited UBE2I expression, promoted cell viability, and reduced cell apoptosis and inflammatory factor secretion, which could be reversed by UBE2I overexpression. Moreover, UBE2I could bind to protein inhibitor of activated signal transducer and activators of transcription 1 (PIAS1). Overexpression of NRIP1 promoted UBE2I expression and inhibited PIAS1 expression, and NRIP1 promoted PIAS1 ubiquitination and degradation by UBE2I. The PA-treated TC-1 cells were transfected with si-UBE2I alone or together with si-PIAS1, and the results indicated that transfection of si-UBE2I had the same effect as transfection of si-NRIP1. Finally, our in vivo findings indicated that the expression of NRIP1 and UBE2I was decreased, and PIAS1 expression was increased, in the lung tissues of mice with NRIP1 knocked-down, and the inflammatory infiltration in the lung tissue was reduced. In conclusion, our study demonstrates that NRIP1 aggravates PA-induced lung injury in mice by promoting PIAS1 ubiquitination.
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Affiliation(s)
- Miaoyi Huang
- Department of Microbiology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an 710061, China.,Department of Respiratory Medicine, Xi'an Central Hospital, Xi'an 710004, China
| | - Jianying Li
- Department of Respiratory Medicine, Xi'an Central Hospital, Xi'an 710004, China
| | - Jie Bai
- Department of Respiratory Medicine, Xi'an Central Hospital, Xi'an 710004, China
| | - Xusheng Du
- Department of Respiratory Medicine, Xi'an Central Hospital, Xi'an 710004, China
| | - Hua Guo
- Department of Respiratory Medicine, Xi'an Central Hospital, Xi'an 710004, China
| | - Bo Wang
- Department of Respiratory Medicine, Xi'an Central Hospital, Xi'an 710004, China
| | - Jiru Xu
- Department of Microbiology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an 710061, China
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Wang Q, Wu Q. Knockdown of receptor interacting protein 140 (RIP140) alleviated lipopolysaccharide-induced inflammation, apoptosis and permeability in pulmonary microvascular endothelial cells by regulating C-terminal binding protein 2 (CTBP2). Bioengineered 2022; 13:3981-3992. [PMID: 35113002 PMCID: PMC8973626 DOI: 10.1080/21655979.2022.2031403] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
The main pathological feature of acute lung injury (ALI) is pulmonary edema caused by increased permeability of pulmonary microvascular endothelial cells (PMVECs). LPS was has been confirmed to lead to cell damage and barrier dysfunction in PMVECs. Furthermore, receptor interacting protein 140 (RIP140) was discovered to be increased in LPS-induced human pulmonary microvascular endothelial cells (HPMECs), but the mechanism of RIP140 on LPS-induced HPMECs has not been investigated. In this study, an acute lung injury model was constructed in LPS-induced HPMECs. After RIP140 was downregulated, inflammation, apoptosis and cell permeability levels were detected by RT-qPCR, TUNEL staining and FITC-Dextran, respectively. Western blotting was used to detect the protein levels of related factors. The binding of RIP140 and C-terminal binding protein 2 (CTBP2) was predicted by database and verified by Co-IP. Subsequently, CTBP2 overexpression was transfected into cells and the above experiments were performed again. The results showed that inflammation, apoptosis and permeability levels of LPS-induced HPMECs were remarkably increased compared to the untreated control group. However, these levels were suppressed after RIP140 was silenced compared to the LPS-induced HPMECs group. Notably, the Co-IP study demonstrated that RIP140 and CTBP2 interacted with each other. Moreover, CTBP2 overexpression reversed the inhibitory effects of RIP140 silencing on LPS-induced inflammation, apoptosis and permeability levels in HPMECs. Together, the study found that interference of RIP140 could alleviate LPS-induced inflammation, apoptosis and permeability in HPMECs by regulating CTBP2.
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Affiliation(s)
- Qizheng Wang
- Department of Pediatrics, Huai'an Maternal and Child Health Care Hospital, Huai'an, Jiangu, China
| | - Qiong Wu
- Department of Pediatrics, The People's Hospital of China Three Gorges University (The First People's Hospital of Yichang), Yichang, Hubei, China
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Bayona-Bafaluy MP, Garrido-Pérez N, Meade P, Iglesias E, Jiménez-Salvador I, Montoya J, Martínez-Cué C, Ruiz-Pesini E. Down syndrome is an oxidative phosphorylation disorder. Redox Biol 2021; 41:101871. [PMID: 33540295 PMCID: PMC7859316 DOI: 10.1016/j.redox.2021.101871] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 12/29/2020] [Accepted: 01/13/2021] [Indexed: 02/07/2023] Open
Abstract
Down syndrome is the most common genomic disorder of intellectual disability and is caused by trisomy of chromosome 21. Several genes in this chromosome repress mitochondrial biogenesis. The goal of this study was to evaluate whether early overexpression of these genes may cause a prenatal impairment of oxidative phosphorylation negatively affecting neurogenesis. Reduction in the mitochondrial energy production and a lower mitochondrial function have been reported in diverse tissues or cell types, and also at any age, including early fetuses, suggesting that a defect in oxidative phosphorylation is an early and general event in Down syndrome individuals. Moreover, many of the medical conditions associated with Down syndrome are also frequently found in patients with oxidative phosphorylation disease. Several drugs that enhance mitochondrial biogenesis are nowadays available and some of them have been already tested in mouse models of Down syndrome restoring neurogenesis and cognitive defects. Because neurogenesis relies on a correct mitochondrial function and critical periods of brain development occur mainly in the prenatal and early neonatal stages, therapeutic approaches intended to improve oxidative phosphorylation should be provided in these periods.
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Affiliation(s)
- M Pilar Bayona-Bafaluy
- Departamento de Bioquímica, Biología Molecular y Celular, Universidad de Zaragoza, C/ Miguel Servet, 177. 50013, Zaragoza, Spain and C/ Pedro Cerbuna, 12, 50009, Zaragoza, Spain; Instituto de Investigación Sanitaria (IIS) de Aragón, Av. San Juan Bosco, 13, 50009, Zaragoza, Spain; Centro de Investigaciones Biomédicas en Rd de Enfermedades Raras (CIBERER), Av. Monforte de Lemos, 3-5, 28029, Madrid, Spain; Instituto de Biocomputación y Física de Sistemas Complejos (BIFI), Universidad de Zaragoza. C/ Mariano Esquillor (Edificio I+D), 50018, Zaragoza, Spain.
| | - Nuria Garrido-Pérez
- Departamento de Bioquímica, Biología Molecular y Celular, Universidad de Zaragoza, C/ Miguel Servet, 177. 50013, Zaragoza, Spain and C/ Pedro Cerbuna, 12, 50009, Zaragoza, Spain; Instituto de Investigación Sanitaria (IIS) de Aragón, Av. San Juan Bosco, 13, 50009, Zaragoza, Spain; Centro de Investigaciones Biomédicas en Rd de Enfermedades Raras (CIBERER), Av. Monforte de Lemos, 3-5, 28029, Madrid, Spain; Instituto de Biocomputación y Física de Sistemas Complejos (BIFI), Universidad de Zaragoza. C/ Mariano Esquillor (Edificio I+D), 50018, Zaragoza, Spain.
| | - Patricia Meade
- Departamento de Bioquímica, Biología Molecular y Celular, Universidad de Zaragoza, C/ Miguel Servet, 177. 50013, Zaragoza, Spain and C/ Pedro Cerbuna, 12, 50009, Zaragoza, Spain; Instituto de Investigación Sanitaria (IIS) de Aragón, Av. San Juan Bosco, 13, 50009, Zaragoza, Spain; Centro de Investigaciones Biomédicas en Rd de Enfermedades Raras (CIBERER), Av. Monforte de Lemos, 3-5, 28029, Madrid, Spain; Instituto de Biocomputación y Física de Sistemas Complejos (BIFI), Universidad de Zaragoza. C/ Mariano Esquillor (Edificio I+D), 50018, Zaragoza, Spain.
| | - Eldris Iglesias
- Departamento de Bioquímica, Biología Molecular y Celular, Universidad de Zaragoza, C/ Miguel Servet, 177. 50013, Zaragoza, Spain and C/ Pedro Cerbuna, 12, 50009, Zaragoza, Spain; Instituto de Investigación Sanitaria (IIS) de Aragón, Av. San Juan Bosco, 13, 50009, Zaragoza, Spain.
| | - Irene Jiménez-Salvador
- Departamento de Bioquímica, Biología Molecular y Celular, Universidad de Zaragoza, C/ Miguel Servet, 177. 50013, Zaragoza, Spain and C/ Pedro Cerbuna, 12, 50009, Zaragoza, Spain; Instituto de Investigación Sanitaria (IIS) de Aragón, Av. San Juan Bosco, 13, 50009, Zaragoza, Spain.
| | - Julio Montoya
- Departamento de Bioquímica, Biología Molecular y Celular, Universidad de Zaragoza, C/ Miguel Servet, 177. 50013, Zaragoza, Spain and C/ Pedro Cerbuna, 12, 50009, Zaragoza, Spain; Instituto de Investigación Sanitaria (IIS) de Aragón, Av. San Juan Bosco, 13, 50009, Zaragoza, Spain; Centro de Investigaciones Biomédicas en Rd de Enfermedades Raras (CIBERER), Av. Monforte de Lemos, 3-5, 28029, Madrid, Spain.
| | - Carmen Martínez-Cué
- Departamento de Fisiología y Farmacología. Facultad de Medicina, Universidad de Cantabria. Av. Herrera Oría, 39011, Santander, Spain.
| | - Eduardo Ruiz-Pesini
- Departamento de Bioquímica, Biología Molecular y Celular, Universidad de Zaragoza, C/ Miguel Servet, 177. 50013, Zaragoza, Spain and C/ Pedro Cerbuna, 12, 50009, Zaragoza, Spain; Instituto de Investigación Sanitaria (IIS) de Aragón, Av. San Juan Bosco, 13, 50009, Zaragoza, Spain; Centro de Investigaciones Biomédicas en Rd de Enfermedades Raras (CIBERER), Av. Monforte de Lemos, 3-5, 28029, Madrid, Spain.
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7
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He Y, Lu X, Chen T, Yang Y, Zheng J, Chen C, Zhang Y, Lei W. Resveratrol protects against myocardial ischemic injury via the inhibition of NF‑κB‑dependent inflammation and the enhancement of antioxidant defenses. Int J Mol Med 2021; 47:29. [PMID: 33537801 PMCID: PMC7895514 DOI: 10.3892/ijmm.2021.4862] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 12/21/2020] [Indexed: 12/23/2022] Open
Abstract
Resveratrol (RES) is a natural phenol which possesses multiple pharmacological actions. The present study aimed to determine whether RES protects against myocardial ischemic injury in association with the inhibition of NF‑κB‑dependent inflammation and the enhancement of antioxidant defenses in mice following acute myocardial infarction (AMI). Male C57/BL mice were randomly assigned to 3 groups as follows: The sham‑operated (sham) group, AMI + vehicle group and AMI + RES group. Rat H9C2 cells were also used to examine the effects of RES on hypoxia‑induced oxidative injury in vitro. Redox homeostasis in the mouse myocardium and rat H9C2 cells was determined post‑treatment. The mRNA and protein levels of phosphorylated (p‑)IκB kinase (p‑IKK), p‑nuclear factor (NF)‑κB p65, interleukin (IL)‑1β, IL‑6, nerve growth factor (NGF) and insulin‑like growth factor‑1 (IGF‑1) were measured by RT‑qPCR and western blot analysis. It was found that RES slightly protected the myocardium against ischemic injury in mice, while it prevented the hypoxia‑induced apoptosis of H9C2 cells. RES decreased the production of reactive oxygen species (ROS) and enhanced the activities of superoxide dismutase (SOD), glutathione (GSH) and glutathione peroxidase (GPx). RES also downregulated the protein and/or mRNA levels of p‑IKK, p‑NF‑κB p65, IL‑1β, IL‑6, NGF and IGF‑1 at 7 and 28 days after infarction. On the whole, these data indicate that RES protects the myocardium against ischemic injury in association with the inhibition of oxidative stress and inflammatory responses. Thus, RES has the potential to be used as an adjunctive therapeutic drug for heart diseases.
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Affiliation(s)
- Yuan He
- Laboratory of Cardiovascular Diseases
| | | | | | - Yu Yang
- Gerontology Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, Guangdong 524001, P.R. China
| | - Jing Zheng
- Department of Obstetrics and Gynecology, University of Wisconsin-Madison, Madison, WI 53715, USA
| | | | - Yuanqi Zhang
- Department of Vascular, Thyroid and Breast Surgery, Affiliated Hospital of Guangdong Medical College, Zhanjiang, Guangdong 524001, P.R. China
| | - Wei Lei
- Laboratory of Cardiovascular Diseases
- Cardiovascular Medicine Center
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8
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Continuous NF-κB pathway inhibition promotes expansion of human phenotypical hematopoietic stem/progenitor cells through metabolism regulation. Exp Cell Res 2021; 399:112468. [PMID: 33428903 DOI: 10.1016/j.yexcr.2020.112468] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 12/24/2020] [Accepted: 12/27/2020] [Indexed: 01/24/2023]
Abstract
Hematopoietic stem/progenitor cells (HSPCs) ex vivo expansion is critical in facilitating their widespread clinical application. NF-κB pathway is implicated in the energy homeostasis and metabolic adaptation. To explore the effect of NF-κB pathway on the ex vivo HSPC expansion and metabolism, the 50 nM-1 μM inhibitor of NF-κB pathway TPCA-1 was used to expand cord blood derived CD34+ cells in serum-free culture. The expansion folds, function, mitochondrial profile and metabolism of HSPCs were determined. After 10 days of culture with 100 nM TPCA-1, the expansion of total cells, CD34+CD38- cells, and CD34+CD38-CD45RA-CD90+CD49f+ cells were significantly increased compared to the cytokine priming alone. Notably, TPCA-1 treatment generated ~ 2-fold greater percentage of CD34+EPCR+ and CD34+CD38-CD45RA-CD90+CD49f+ cells compared to cytokine only conditions. Moreover, TPCA-1 expanded CD34+ cells displayed enhanced serial colonies forming potential and secondary expansion capability. NF-κB inhibition increased the expression of self-renewal related genes, while downregulated the expression of mitochondrial biogenesis regulator (Pgc1α) and mitochondrial chaperones and proteases (ClpP, Hsp10, Hsp60). Mitochondrial mass and membrane potential were markedly decreased with TPCA-1 treatment, leading to the reduced mitochondrial reactive oxygen species (ROS) level in HSPCs. NF-κB inhibition displayed augmented glycolysis rate with compromising mitochondrial metabolism. This study demonstrated that NF-κB pathway inhibition improved glycolysis and limited ROS production that promoted the ex vivo expansion and maintenance of functional HSPCs.
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LI H, HOU H, LIU S, FENG Y, ZHONG W, HU X, YAN N. miR-33 and RIP140 participate in LPS-induced acute lung injury. Turk J Med Sci 2019; 49:422-428. [PMID: 30761836 PMCID: PMC7350843 DOI: 10.3906/sag-1804-173] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Background/aim Pulmonary microvascular endothelial cells (PMVECs) play a pivotal role in the process of acute lung injury (ALI), which can be induced by lipopolysaccharide (LPS). Numerous reports have indicated that both miR-33 and RIP140 are involved in the inflammatory response in macrophages. In this study, we sought to investigate whether miR-33 and RIP140 participate in ALI induced by LPS. Materials and methods First, we isolated and identified PMVECs from BALB/c mice. Subsequently, both PMVECs and BALB/c mice were treated with PBS, LPS, or pyrrolidine dithiocarbamate (PDTC) plus LPS and divided into three groups: control (PBS), LPS (LPS), and L+P (LPS plus PDTC) groups. We assessed pathology by hematoxylin and eosin staining, and miR-33 and RIP140 expression levels were examined using quantitative PCR and Western blot analyses. Results Our results demonstrated that LPS can induce PMVEC injury and ALI and that LPS treatment significantly decreased miR-33 expression compared with controls (P < 0.001, n = 5). On the contrary, RIP140 was markedly overexpressed by LPS treatment (P < 0.001, n = 5). However, this alteration can be inhibited by pretreatment with PDTC before LPS (P < 0.05, n = 5). Conclusion This study is the first to confirm that both miR-33 and RIP140 participate in LPS-induced PMVEC injury and ALI, which may help uncover the mechanism of ALI.
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Affiliation(s)
- Hua LI
- Basic Medical Experiments Center, Nanchang University, Nanchang, JiangxiP.R. China
| | - Huan HOU
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences,Nanchang University, Nanchang, JiangxiP.R. China
| | - Shuang LIU
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences,Nanchang University, Nanchang, JiangxiP.R. China
| | - Yangyang FENG
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences,Nanchang University, Nanchang, JiangxiP.R. China
| | - Wansi ZHONG
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences,Nanchang University, Nanchang, JiangxiP.R. China
| | - Xiaojuan HU
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences,Nanchang University, Nanchang, JiangxiP.R. China
| | - Nianlong YAN
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences,Nanchang University, Nanchang, JiangxiP.R. China
- * To whom correspondence should be addressed. E-mail:
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10
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You J, Yue Z, Chen S, Chen Y, Lu X, Zhang X, Shen P, Li J, Han Q, Li Z, Liu P. Receptor-interacting Protein 140 represses Sirtuin 3 to facilitate hypertrophy, mitochondrial dysfunction and energy metabolic dysfunction in cardiomyocytes. Acta Physiol (Oxf) 2017; 220:58-71. [PMID: 27614093 DOI: 10.1111/apha.12800] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 04/19/2016] [Accepted: 09/07/2016] [Indexed: 12/12/2022]
Abstract
AIM The transcriptional cofactor receptor-interacting protein 140 (RIP140) is known as a deleterious regulator of cardiac mitochondrial function and energy metabolic homeostasis. This study revealed that RIP140 repressed Sirtuin 3 (SIRT3), a mitochondrial deacetylase that plays an important role in regulating cardiac function. METHODS RIP140 was overexpressed by adenovirus infection or was knocked down by RNA interference in neonatal rat cardiomyocytes. RESULTS RIP140 overexpression repressed, while RIP140 silencing elevated the expression and activity of SIRT3. Ad-RIP140 enhanced the expressions of the cardiac hypertrophic markers and increased cardiomyocyte surface area, whereas SIRT3 overexpression prevented the effect of Ad-RIP140. Additionally, SIRT3 overexpression reversed Ad-RIP140-induced mitochondrial dysfunction and energy metabolic dysfunction, such as increase in oxidative stress, decrease in mitochondrial membrane potential and ATP production, as well as downregulation of mitochondrial DNA-encoded genes and genes related to mitochondrial genome replication and transcription, mitochondrial oxidative phosphorylation and fatty acid oxidation. In contrast, SIRT3 silencing exacerbated RIP140-induced cardiomyocyte hypertrophy and mitochondrial dysfunction. Furthermore, the repression of SIRT3 by RIP140 was dependent on estrogen-related receptor-α (ERRα). The involvement of peroxisome proliferator-activated receptor-γ coactivator-1α (PGC-1α) was ruled out of SIRT3 suppression by RIP140. RIP140 and PGC-1α might act as functional antagonists on the regulation of SIRT3. CONCLUSION This study indicates that suppression of SIRT3 by RIP140 facilitates the development of cardiomyocyte hypertrophy, mitochondrial dysfunction and energy metabolic dysfunction. Strategies targeting inhibition of RIP140 and upregulation of SIRT3 might improve cardiac energy metabolism and suggest therapeutic potential for heart diseases.
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Affiliation(s)
- J. You
- Department of Pharmacology and Toxicology; National and Local United Engineering Lab of Druggability and New Drugs Evaluation; School of Pharmaceutical Sciences; Sun Yat-Sen University; Guangzhou China
| | - Z. Yue
- Department of Pharmacology and Toxicology; National and Local United Engineering Lab of Druggability and New Drugs Evaluation; School of Pharmaceutical Sciences; Sun Yat-Sen University; Guangzhou China
| | - S. Chen
- Department of Pharmacology and Toxicology; National and Local United Engineering Lab of Druggability and New Drugs Evaluation; School of Pharmaceutical Sciences; Sun Yat-Sen University; Guangzhou China
| | - Y. Chen
- Department of Pharmacy; The Second Affiliated Hospital of Guangzhou Medical University; Guangzhou Guangdong China
| | - X. Lu
- School of Nursing; Guangdong Pharmaceutical University; Guangzhou Guangdong China
| | - X. Zhang
- Department of Pharmacology and Toxicology; National and Local United Engineering Lab of Druggability and New Drugs Evaluation; School of Pharmaceutical Sciences; Sun Yat-Sen University; Guangzhou China
- School of Medicine; Xizang Minzu University; Xianyang ShaanXi China
| | - P. Shen
- Department of Pharmacology and Toxicology; National and Local United Engineering Lab of Druggability and New Drugs Evaluation; School of Pharmaceutical Sciences; Sun Yat-Sen University; Guangzhou China
| | - J. Li
- Department of Pharmacology and Toxicology; National and Local United Engineering Lab of Druggability and New Drugs Evaluation; School of Pharmaceutical Sciences; Sun Yat-Sen University; Guangzhou China
| | - Q. Han
- Department of Hepatobiliary Surgery; Sun Yat-sen Memorial Hospital; Guangzhou China
| | - Z. Li
- Department of Pharmacology and Toxicology; National and Local United Engineering Lab of Druggability and New Drugs Evaluation; School of Pharmaceutical Sciences; Sun Yat-Sen University; Guangzhou China
| | - P. Liu
- Department of Pharmacology and Toxicology; National and Local United Engineering Lab of Druggability and New Drugs Evaluation; School of Pharmaceutical Sciences; Sun Yat-Sen University; Guangzhou China
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11
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Chen Y, Chen S, Yue Z, Zhang Y, Zhou C, Cao W, Chen X, Zhang L, Liu P. Receptor-interacting protein 140 overexpression impairs cardiac mitochondrial function and accelerates the transition to heart failure in chronically infarcted rats. Transl Res 2017; 180:91-102.e1. [PMID: 27639592 DOI: 10.1016/j.trsl.2016.08.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 08/23/2016] [Accepted: 08/23/2016] [Indexed: 10/21/2022]
Abstract
Heart failure (HF) is associated with myocardial energy metabolic abnormality. Receptor-interacting protein 140 (RIP140) is an important transcriptional cofactor for maintaining energy balance in high-oxygen consumption tissues. However, the role of RIP140 in the pathologic processes of HF remains to be elucidated. In this study, we investigated the role of RIP140 in mitochondrial and cardiac functions in rodent hearts under myocardial infarction (MI) stress. MI was created by a permanent ligation of left anterior descending coronary artery and exogenous expression of RIP140 by adenovirus (Ad) vector delivery. Four weeks after MI or Ad-RIP140 treatment, cardiac function was assessed by echocardiographic and hemodynamics analyses, and the mitochondrial function was determined by mitochondrial genes expression, biogenesis, and respiration rates. In Ad-RIP140 or MI group, a subset of metabolic genes changed, accompanied with slight reductions in mitochondrial biogenesis and respiration rates but no change in adenosine triphosphate (ATP) content. Cardiac malfunction was compensated. However, under MI stress, rats overexpressing RIP140 exhibited greater repressions in mitochondrial genes, state 3 respiration rates, respiration control ratio, and ATP content and had further deteriorated cardiac malfunction. In conclusion, RIP140 overexpression leads to comparable cardiac function as resulted from MI, but RIP140 aggravates metabolic repression, mitochondrial malfunction, and further accelerates the transition to HF in response to MI stress.
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Affiliation(s)
- YanFang Chen
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, People's Republic of China; Department of Pharmacy, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, People's Republic of China; National and Local United Engineering Laboratory of Druggability and New Drug Evaluation, Guangzhou, People's Republic of China
| | - ShaoRui Chen
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, People's Republic of China; National and Local United Engineering Laboratory of Druggability and New Drug Evaluation, Guangzhou, People's Republic of China
| | - ZhongBao Yue
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - YiQiang Zhang
- Division of Cardiology, and Institute of Stem Cell and Regenerative Medicine, School of Medicine, University of Washington, Seattle, Wash
| | - ChangHua Zhou
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - WeiWei Cao
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Xi Chen
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - LuanKun Zhang
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - PeiQing Liu
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, People's Republic of China; National and Local United Engineering Laboratory of Druggability and New Drug Evaluation, Guangzhou, People's Republic of China.
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12
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Lan Z, Wei M, Chen L, Xie G, Liu X, Zhang X. Role of Sinomenine on Complete Freund's Adjuvant-Induced Arthritis in Rats. IUBMB Life 2016; 68:429-35. [DOI: 10.1002/iub.1499] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Accepted: 03/17/2016] [Indexed: 01/23/2023]
Affiliation(s)
- Zhou Lan
- School of Pharmacy; Hubei University of Chinese Medicine; Wuhan People's Republic of China
| | - Meng Wei
- School of Pharmacy; Hubei University of Chinese Medicine; Wuhan People's Republic of China
| | - Lvyi Chen
- School of Pharmacy; South-Central University for Nationalities; Wuhan People's Republic of China
| | - Guangjing Xie
- School of Basic Medicine; Hubei University of Chinese Medicine; Wuhan People's Republic of China
| | - Xiao Liu
- School of Basic Medicine; Hubei University of Chinese Medicine; Wuhan People's Republic of China
| | - Xiuqiao Zhang
- School of Pharmacy; Hubei University of Chinese Medicine; Wuhan People's Republic of China
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13
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Chen L, Tian G, Tang W, Luo W, Liu P, Ma Z. Protective effect of luteolin on streptozotocin-induced diabetic renal damage in mice via the regulation of RIP140/NF-кB pathway and insulin signalling pathway. J Funct Foods 2016. [DOI: 10.1016/j.jff.2016.01.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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14
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Lei C, Jiao Y, He B, Wang G, Wang Q, Wang J. RIP140 down-regulation alleviates acute lung injury via the inhibition of LPS-induced PPARγ promoter methylation. Pulm Pharmacol Ther 2016; 37:57-64. [PMID: 26921464 DOI: 10.1016/j.pupt.2016.02.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Revised: 01/18/2016] [Accepted: 02/02/2016] [Indexed: 11/16/2022]
Abstract
Seriously inflammatory response of the lungs can induce acute lung injury (ALI) or acute respiratory distress syndrome (ARDS) which are serious public health threats due to their high patient morbidity and mortality. While RIP140 is known to modulate proinflammatory cytokine production during an inflammatory response, its role in ALI/ARDS is unclear. In this study, we examined RIP140 and PPARγ protein expression in RAW 264.7 cells and lung tissue following LPS-induced ALI. RIP140 shRNA adenoviral knockdown significantly elevated PPARγ expression, inhibited TNF-α, IL-1β, and IL-6 production in vivo and in vitro. Conversely, treatment with a PPARγ antagonist (GW9662) reversed these outcomes. Furthermore, co-IP showed that endogenous and exogenous RIP140 interacted with DNMT3b in RAW 264.7 cells. Bisulfite conversion, pyrosequencing and activity assays demonstrated that PPARγ promoter methylation levels were increased and that PPARγ transcriptional activity was inhibited following LPS treatment in macrophages. Nevertheless, RIP140 knockdown reduced PPARγ promoter methylation levels and restored its transcriptional activity. These results indicate that RIP140 knockdown can inhibit the production of inflammation mediators and remit ALI via the repression of DNMT3b mediated PPARγ promoter methylation.
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Affiliation(s)
- Chuanjiang Lei
- Institute of Respiratory Disease, Xinqiao Hospital, Third Military Medical University, Chongqing, 40037, China
| | - Yan Jiao
- Institute of Respiratory Disease, Xinqiao Hospital, Third Military Medical University, Chongqing, 40037, China
| | - Bingfeng He
- Institute of Respiratory Disease, Xinqiao Hospital, Third Military Medical University, Chongqing, 40037, China
| | - Guansong Wang
- Institute of Respiratory Disease, Xinqiao Hospital, Third Military Medical University, Chongqing, 40037, China
| | - Qin Wang
- Institute of Respiratory Disease, Xinqiao Hospital, Third Military Medical University, Chongqing, 40037, China
| | - Jianchun Wang
- Institute of Respiratory Disease, Xinqiao Hospital, Third Military Medical University, Chongqing, 40037, China.
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15
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Chen T, Ma Z, Zhu L, Jiang W, Wei T, Zhou R, Luo F, Zhang K, Fu Q, Ma C, Yan T. Suppressing Receptor-Interacting Protein 140: a New Sight for Salidroside to Treat Cerebral Ischemia. Mol Neurobiol 2015; 53:6240-6250. [PMID: 26563497 DOI: 10.1007/s12035-015-9521-7] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 10/28/2015] [Indexed: 01/09/2023]
Abstract
The purpose of the current study was to detect the effect of salidroside (Sal) on cerebral ischemia and explore its potential mechanism. Middle cerebral artery occlusion (MCAO) was performed to investigate the effects of Sal on cerebral ischemia. The rats were randomly divided into five groups: sham group, vehicle group, clopidogrel (7.5 mg/kg) group, Sal (20 mg/kg) group, and Sal (40 mg/kg) group. SH-SY5Y cells were exposed to ischemia-reperfusion (I/R) injury to verify the protective effect of Sal in vitro. We also built the stable receptor-interacting protein 140 (RIP140)-overexpressing SH-SY5Y cells. The results showed that Sal significantly reduces brain infarct size and cerebral edema. Sal could effectively decrease the levels of interleukin-6 (IL-6), interleukin-1β (IL-1β), and tumor necrosis factor-α (TNF-α) in serum of the MCAO rats and supernatant of I/R-induced SH-SY5Y cells. Immunohistochemical and Western blot results demonstrated that Sal inhibited RIP140-mediated inflammation and apoptosis in the MCAO rats and SH-SY5Y cells. In addition, we further confirmed that RIP140/NF-κB signaling plays a crucial role by evaluating the protein expression in RIP140-overexpressing SH-SY5Y cells. Our findings suggested that Sal could be used as an effective neuroprotective agent for cerebral ischemia due to its significant effect on preventing neuronal cell injury after cerebral ischemia both in vivo and in vitro by the inhibitions of RIP140-mediated inflammation and apoptosis.
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Affiliation(s)
- Tong Chen
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China
| | - Zhanqiang Ma
- Department of Pharmacology of Chinese Materia Medica, China Pharmaceutical University, Nanjing, 210009, China
| | - Lingpeng Zhu
- Department of Physiology and Pharmacology, China Pharmaceutical University, Nanjing, 210009, China
| | - Wenjiao Jiang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China
| | - Tingting Wei
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China
| | - Rui Zhou
- Department of Physiology and Pharmacology, China Pharmaceutical University, Nanjing, 210009, China
| | - Fen Luo
- Department of Physiology and Pharmacology, China Pharmaceutical University, Nanjing, 210009, China
| | - Kai Zhang
- Department of Pharmacology of Chinese Materia Medica, China Pharmaceutical University, Nanjing, 210009, China
| | - Qiang Fu
- Department of Pharmacology of Chinese Materia Medica, China Pharmaceutical University, Nanjing, 210009, China
| | - Chunhua Ma
- Department of Physiology and Pharmacology, China Pharmaceutical University, Nanjing, 210009, China.
| | - Tianhua Yan
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China. .,Department of Physiology and Pharmacology, China Pharmaceutical University, Nanjing, 210009, China.
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16
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García JA, Volt H, Venegas C, Doerrier C, Escames G, López LC, Acuña-Castroviejo D. Disruption of the NF-κB/NLRP3 connection by melatonin requires retinoid-related orphan receptor-α and blocks the septic response in mice. FASEB J 2015; 29:3863-75. [PMID: 26045547 DOI: 10.1096/fj.15-273656] [Citation(s) in RCA: 179] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Accepted: 05/18/2015] [Indexed: 01/06/2023]
Abstract
We determined the NF-κB- and NOD-like receptor (NLR)P3-dependent molecular mechanisms involved in sepsis and evaluated the role of retinoid-related orphan receptor (ROR)-α in melatonin's anti-inflammatory actions. Western blot, RT-PCR, ELISA, and spectrophotometric analysis revealed that NF-κB and NLRP3 closely interact, leading to proinflammatory and pro-oxidant status in heart tissue of septic C57BL/6J mice. Moreover, mitochondrial oxygen consumption was reduced by 80% in septic mice. In vivo and in vitro analysis showed that melatonin administration blunts NF-κB transcriptional activity through a sirtuin1-dependent NF-κB deacetylation in septic mice. Melatonin also decreased NF-κB-dependent proinflammatory response and restored redox balance and mitochondrial homeostasis, thus inhibiting the NLRP3 inflammasome. In an important finding, the inhibition of NF-κB by melatonin, but not that of NLRP3, was blunted in RORα (sg/sg) mice, indicating that functional RORα transcription factor is necessary for the initiation of the innate immune response against inflammation. Our results are evidence of the NF-κB/NLRP3 connection during sepsis and identify NLRP3 as a novel molecular target for melatonin. The multiple molecular targets of melatonin in this study explain its potent anti-inflammatory efficacy against systemic innate immune activation and herald a promising therapeutic application for melatonin in the treatment of sepsis.
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Affiliation(s)
- José A García
- *Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, and Departamento de Fisiología, Facultad de Medicina, Universidad de Granada, Granada, Spain; and Unidad de Gestión Clínica de Laboratorios, Hospital Universitario San Cecilio, Granada, Spain
| | - Huayqui Volt
- *Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, and Departamento de Fisiología, Facultad de Medicina, Universidad de Granada, Granada, Spain; and Unidad de Gestión Clínica de Laboratorios, Hospital Universitario San Cecilio, Granada, Spain
| | - Carmen Venegas
- *Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, and Departamento de Fisiología, Facultad de Medicina, Universidad de Granada, Granada, Spain; and Unidad de Gestión Clínica de Laboratorios, Hospital Universitario San Cecilio, Granada, Spain
| | - Carolina Doerrier
- *Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, and Departamento de Fisiología, Facultad de Medicina, Universidad de Granada, Granada, Spain; and Unidad de Gestión Clínica de Laboratorios, Hospital Universitario San Cecilio, Granada, Spain
| | - Germaine Escames
- *Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, and Departamento de Fisiología, Facultad de Medicina, Universidad de Granada, Granada, Spain; and Unidad de Gestión Clínica de Laboratorios, Hospital Universitario San Cecilio, Granada, Spain
| | - Luis C López
- *Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, and Departamento de Fisiología, Facultad de Medicina, Universidad de Granada, Granada, Spain; and Unidad de Gestión Clínica de Laboratorios, Hospital Universitario San Cecilio, Granada, Spain
| | - Darío Acuña-Castroviejo
- *Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, and Departamento de Fisiología, Facultad de Medicina, Universidad de Granada, Granada, Spain; and Unidad de Gestión Clínica de Laboratorios, Hospital Universitario San Cecilio, Granada, Spain
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17
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Yu J, Lu Y, Li Y, Xiao L, Xing Y, Li Y, Wu L. Role of S100A1 in hypoxia-induced inflammatory response in cardiomyocytes via TLR4/ROS/NF-κB pathway. J Pharm Pharmacol 2015; 67:1240-50. [PMID: 25880347 DOI: 10.1111/jphp.12415] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Accepted: 02/27/2015] [Indexed: 01/28/2023]
Abstract
Abstract
Objectives
S100A1 plays a crucial role in hypoxia-induced inflammatory response in cardiomyocytes. However, the role of S100A1 in hypoxia-induced inflammatory response in cardiomyocytes is still unknown.
Methods
enzyme-linked immunosorbent assay (ELISA) was performed for the determination of inflammatory cytokines. Immunocytochemistry and immunofluorescence, Western blot analysis and Real-time polymerase chain reaction (RT-PCR) were conducted to assess protein or mRNA expressions. Fluorogenic probe dihydroethidium (DHE) was used to evaluate the generation of reactive oxygen species (ROS) while Hoechst 33342 staining for apoptosis. Small interfering RNA (siRNA) for S100A1 was used to evaluate the role of S100A1.
Key findings
The levels of ROS and inflammatory cytokine including tumor necrosis factor (TNF)-α, interleukin (IL)-1β, IL-6 and IL-8 in H9c2 cells were increased remarkably by hypoxia. However, IL-37 protein or mRNA levels were decreased significantly. Both Toll-like receptor 4 (TLR4) inhibitor Ethyl (6R)-6-[N-(2-Chloro-4fluorophenyl)sulfamoyl]cyclohex-1-ene-1-carboxylate (TAK-242) treatment or siRNA S100A1 downregulated TLR4 expression and inflammatory cytokine level and mRNA in H9c2 cells, as well as weakening ROS and phospho-p65 Nuclear factor (NF)-κB levels. Further, S100A1 treatment significantly reduced TNF-α protein or mRNA level whereas enhanced IL-37 protein or mRNA level, and could attenuate ROS and phospho-p65 NF-κB levels.
Conclusions
Our results demonstrate that S100A1 can regulate the inflammatory response and oxidative stress in H9C2 cells via TLR4/ROS/NF-κB pathway. These findings provide an interesting strategy for protecting cardiomyocytes from hypoxia-induced inflammatory response.
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Affiliation(s)
- Jiangkun Yu
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Yanyu Lu
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Yapeng Li
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Lili Xiao
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Yu Xing
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Yanshen Li
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Leiming Wu
- Department of Cardiology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
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18
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He Y, Zhang L, Li Z, Gao H, Yue Z, Liu Z, Liu X, Feng X, Liu P. RIP140 triggers foam-cell formation by repressing ABCA1/G1 expression and cholesterol efflux via liver X receptor. FEBS Lett 2015; 589:455-60. [PMID: 25616132 DOI: 10.1016/j.febslet.2015.01.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2014] [Revised: 11/26/2014] [Accepted: 01/02/2015] [Indexed: 12/23/2022]
Abstract
Receptor-interacting protein 140 (RIP140) is a multifunctional coregulator of lipid metabolism and inflammation. However, the potential role of RIP140 in atherosclerosis remains unknown. The present study investigated the impact of RIP140 on foam cell formation, a critical step in pathogenesis of atherosclerosis. The expression of RIP140 was increased in foam cells. RIP140 overexpression resulted in decreased cholesterol efflux in macrophages and their concomitant differentiation into foam cells. Moreover, RIP140 negatively regulated the macrophage expression of ATP-binding cassette transporters A1 and G1 (ABCA1/G1), by suppressing the expression and activity of liver X receptor (LXR). These findings shed light onto the contribution of RIP140 to the development and progression of atherosclerosis, and suggest a novel therapeutic target for the treatment of atherosclerosis.
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Affiliation(s)
- Yanhong He
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, PR China
| | - Luankun Zhang
- Department of Pharmacy, Sun Yat-sen University cancer center, Guangzhou 510060, PR China
| | - Zhuoming Li
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, PR China; National and Local United Engineering Laboratory of Druggability and New Drugs Evaluation, Guangzhou 510006, PR China
| | - Hui Gao
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, PR China; Department of Pharmacology, School of Medicine, Jishou University, Jishou, PR China
| | - Zhongbao Yue
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, PR China; National and Local United Engineering Laboratory of Druggability and New Drugs Evaluation, Guangzhou 510006, PR China
| | - Zhiping Liu
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, PR China
| | - Xueping Liu
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, PR China
| | - Xiaojun Feng
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, PR China
| | - Peiqing Liu
- Department of Pharmacology and Toxicology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, PR China; National and Local United Engineering Laboratory of Druggability and New Drugs Evaluation, Guangzhou 510006, PR China.
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