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You HJ, Ma LH, Wang X, Wang YX, Zhang HY, Bao ES, Zhong YJ, Liu XY, Kong DL, Zheng KY, Kong FY, Tang RX. Hepatitis B virus core protein stabilizes RANGAP1 to upregulate KDM2A and facilitate hepatocarcinogenesis. Cell Oncol (Dordr) 2024; 47:639-655. [PMID: 37845585 DOI: 10.1007/s13402-023-00889-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/30/2023] [Indexed: 10/18/2023] Open
Abstract
PURPOSE As a vital component of the hepatitis B virus (HBV) nucleocapsid, HBV core protein (HBC) contributes to hepatocarcinogenesis. Here, we aimed to assess the effects of RANGAP1 and KDM2A on tumorigenesis induced by HBC. METHODS Co-immunoprecipitation (Co-IP) combined with mass spectrometry were utilized to identify the proteins with the capacity to interact with HBC. The gene and protein levels of RANGAP1 and KDM2A in hepatocellular carcinoma (HCC) and HBV-positive HCC tissues were evaluated using different cohorts. The roles of RANGAP1 and KDM2A in HCC cells mediated by HBC were investigated in vitro and in vivo. Co-IP and western blot were used to estimate the interaction of HBC with RANGAP1 and KDM2A and assess RANGAP1 stabilization regulated by HBC. RESULTS We discovered that HBC could interact with RANGAP1 and KDM2A, the levels of which were markedly elevated in HCC tissues. Relying on RANGAP1 and KDM2A, HBC facilitated HCC cell growth and migration. The increased stabilization of RANGAP1 mediated by HBC was relevant to the disruption of the interaction between RANGAP1 and an E3 ligase SYVN1. RANGAP1 interacted with KDM2A, and it further promoted KDM2A stabilization by disturbing the interaction between KDM2A and SYVN1. HBC enhanced the interaction of KDM2A with RANGAP1 and upregulated the expression of KDM2A via RANGAP1 in HCC cells. CONCLUSIONS These findings demonstrate a novel mechanism by which HBC facilitates hepatocarcinogenesis. RANGAP1 and KDM2A could act as potential molecular targets for treating HBV-associated malignancy.
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Affiliation(s)
- Hong-Juan You
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Li-Hong Ma
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Xing Wang
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Yu-Xin Wang
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Huan-Yang Zhang
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - En-Si Bao
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Yu-Jie Zhong
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Xiang-Ye Liu
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - De-Long Kong
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Kui-Yang Zheng
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Xuzhou Medical University, Xuzhou, Jiangsu, China
- National Demonstration Center for Experimental Basic Medical Sciences Education, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Fan-Yun Kong
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Xuzhou Medical University, Xuzhou, Jiangsu, China.
| | - Ren-Xian Tang
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Xuzhou Medical University, Xuzhou, Jiangsu, China.
- National Demonstration Center for Experimental Basic Medical Sciences Education, Xuzhou Medical University, Xuzhou, Jiangsu, China.
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Kurata A, Harada Y, Fujita K, Ohno SI, Takanashi M, Yoshizawa S, Nagashima Y, Nagao T, Yamaguchi J, Kuroda M. Smooth muscle differentiation of coronary intima in autopsy tissues after sirolimus-eluting stent implantation. Cardiovasc Pathol 2023; 66:107554. [PMID: 37321466 DOI: 10.1016/j.carpath.2023.107554] [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: 02/22/2023] [Revised: 05/22/2023] [Accepted: 06/07/2023] [Indexed: 06/17/2023] Open
Abstract
BACKGROUND In coronary atherosclerotic disease, the proliferation of intimal smooth muscle cells (SMCs) is regarded as beneficial with respect to stable and unstable plaques, but is thought detrimental in discussions on coronary stent restenosis. To resolve this discrepancy, we focused on the quality, not quantity, of intimal SMCs in coronary atherosclerotic disease. METHODS Autopsied coronary artery specimens from seven patients implanted with bare metal stents (BMS), three with paclitaxel-eluting stents (PES), and 10 with sirolimus (rapamycin)-eluting stents (SES) were immunostained for SMC markers. Cultured human coronary artery SMCs were also treated with sirolimus and paclitaxel. RESULTS Intimal SMC differentiation, estimated by the ratio of h-caldesmon+ cells to α-smooth muscle actin+ (α-SMA+) cells, was significantly increased whereas dedifferentiation, estimated from the ratio of fibroblast activation protein alpha (FAPα)+ cells to α-SMA+ cells, was significantly decreased, in tissues of SES compared with BMS cases. No difference in the degree of differentiation was found between PES and BMS cases or between the three groups in nonstented arteries used as controls. Correlation analyses for each field of view revealed a significant positive correlation between h-caldesmon and calponin staining but significant negative correlations with FAPα staining in α-SMA+ cells. Cultured SMCs were shorter (dedifferentiated) and showed an increased FAPα/α-SMA protein when treated with paclitaxel, whereas they became elongated (differentiated) and showed increased calponin/α-SMA proteins with sirolimus. CONCLUSIONS The SMCs of the coronary intima may differentiate after SES implantation. SMC differentiation may explain both the plaque stabilization and reduced risk of reintervention associated with SES.
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Affiliation(s)
- Atsushi Kurata
- Department of Pathology, Tokyo Women's Medical University, Shinjuku, Tokyo, Japan.
| | - Yuichiro Harada
- Department of Molecular Pathology, Tokyo Medical University, Shinjuku, Tokyo, Japan
| | - Koji Fujita
- Department of Molecular Pathology, Tokyo Medical University, Shinjuku, Tokyo, Japan
| | - Shin-Ichiro Ohno
- Department of Molecular Pathology, Tokyo Medical University, Shinjuku, Tokyo, Japan
| | - Masakatsu Takanashi
- Department of Molecular Pathology, Tokyo Medical University, Shinjuku, Tokyo, Japan
| | - Saeko Yoshizawa
- Department of Surgical Pathology, Tokyo Women's Medical University Hospital, Shinjuku, Tokyo, Japan
| | - Yoji Nagashima
- Department of Surgical Pathology, Tokyo Women's Medical University Hospital, Shinjuku, Tokyo, Japan
| | - Toshitaka Nagao
- Department of Anatomic Pathology, Tokyo Medical University, Shinjuku, Tokyo, Japan
| | - Junichi Yamaguchi
- Department of Cardiology, Tokyo Women's Medical University, Shinjuku, Tokyo, Japan
| | - Masahiko Kuroda
- Department of Molecular Pathology, Tokyo Medical University, Shinjuku, Tokyo, Japan
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Lozano-Edo S, Roselló-Lletí E, Sánchez-Lázaro I, Tarazón E, Portolés M, Ezzitouny M, Lopez-Vilella R, Arnau MA, Almenar L, Martínez-Dolz L. Cardiac Allograft Rejection Induces Changes in Nucleocytoplasmic Transport: RANGAP1 as a Potential Non-Invasive Biomarker. J Pers Med 2022; 12:jpm12060913. [PMID: 35743697 PMCID: PMC9225640 DOI: 10.3390/jpm12060913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 05/26/2022] [Accepted: 05/29/2022] [Indexed: 11/16/2022] Open
Abstract
The non-invasive diagnosis of acute cellular rejection (ACR) is a major challenge. We performed a molecular study analyzing the predictive capacity of serum RanGTPase AP1 (RANGAP1) for diagnosing ACR during the first year after heart transplantation (HT). We included the serum samples of 75 consecutive HT patients, extracted after clinical stability, to determine the RANGAP1 levels through ELISA. In addition, various clinical, analytical, and echocardiographic variables, as well as endomyocardial biopsy results, were collected. RANGAP1 levels were higher in patients who developed ACR (median 63.15 ng/mL; (inter-quartile range (IQR), 36.61–105.69) vs. 35.33 ng/mL (IQR, 19.18–64.59); p = 0.02). Receiver operating characteristic (ROC) curve analysis confirmed that RANGAP1 differentiated between patients with and without ACR (area under curve (AUC), 0.70; p = 0.02), and a RANGAP1 level exceeding the cut-off point (≥90 ng/mL) was identified as a risk factor for the development of ACR (OR, 6.8; p = 0.006). Two independent predictors of ACR identified in this study were higher RANGAP1 and N-terminal pro-brain natriuretic peptide levels. The analysis of the ROC curve of the model showed a significant AUC of 0.77, p = 0.001. Our findings suggest that RANGAP1 quantification facilitates risk prediction for the occurrence of ACR and could be considered as a novel non-invasive biomarker of ACR.
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Affiliation(s)
- Silvia Lozano-Edo
- Heart Failure and Transplantation Unit, Cardiology Department, University and Polytechnic La Fe Hospital, 46026 Valencia, Spain; (I.S.-L.); (M.E.); (R.L.-V.); (M.A.A.); (L.A.); (L.M.-D.)
- Clinical and Translational Research Group in Cardiology, Health Research Institute Hospital La Fe (IIS La Fe), 46026 Valencia, Spain; (E.R.-L.); (E.T.); (M.P.)
- Correspondence:
| | - Esther Roselló-Lletí
- Clinical and Translational Research Group in Cardiology, Health Research Institute Hospital La Fe (IIS La Fe), 46026 Valencia, Spain; (E.R.-L.); (E.T.); (M.P.)
- Center for Biomedical Research Network on Cardiovascular Diseases (Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares: CIBERCV), 28029 Madrid, Spain
| | - Ignacio Sánchez-Lázaro
- Heart Failure and Transplantation Unit, Cardiology Department, University and Polytechnic La Fe Hospital, 46026 Valencia, Spain; (I.S.-L.); (M.E.); (R.L.-V.); (M.A.A.); (L.A.); (L.M.-D.)
- Clinical and Translational Research Group in Cardiology, Health Research Institute Hospital La Fe (IIS La Fe), 46026 Valencia, Spain; (E.R.-L.); (E.T.); (M.P.)
- Center for Biomedical Research Network on Cardiovascular Diseases (Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares: CIBERCV), 28029 Madrid, Spain
| | - Estefanía Tarazón
- Clinical and Translational Research Group in Cardiology, Health Research Institute Hospital La Fe (IIS La Fe), 46026 Valencia, Spain; (E.R.-L.); (E.T.); (M.P.)
- Center for Biomedical Research Network on Cardiovascular Diseases (Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares: CIBERCV), 28029 Madrid, Spain
| | - Manuel Portolés
- Clinical and Translational Research Group in Cardiology, Health Research Institute Hospital La Fe (IIS La Fe), 46026 Valencia, Spain; (E.R.-L.); (E.T.); (M.P.)
- Center for Biomedical Research Network on Cardiovascular Diseases (Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares: CIBERCV), 28029 Madrid, Spain
| | - Maryem Ezzitouny
- Heart Failure and Transplantation Unit, Cardiology Department, University and Polytechnic La Fe Hospital, 46026 Valencia, Spain; (I.S.-L.); (M.E.); (R.L.-V.); (M.A.A.); (L.A.); (L.M.-D.)
- Clinical and Translational Research Group in Cardiology, Health Research Institute Hospital La Fe (IIS La Fe), 46026 Valencia, Spain; (E.R.-L.); (E.T.); (M.P.)
| | - Raquel Lopez-Vilella
- Heart Failure and Transplantation Unit, Cardiology Department, University and Polytechnic La Fe Hospital, 46026 Valencia, Spain; (I.S.-L.); (M.E.); (R.L.-V.); (M.A.A.); (L.A.); (L.M.-D.)
- Clinical and Translational Research Group in Cardiology, Health Research Institute Hospital La Fe (IIS La Fe), 46026 Valencia, Spain; (E.R.-L.); (E.T.); (M.P.)
| | - Miguel Angel Arnau
- Heart Failure and Transplantation Unit, Cardiology Department, University and Polytechnic La Fe Hospital, 46026 Valencia, Spain; (I.S.-L.); (M.E.); (R.L.-V.); (M.A.A.); (L.A.); (L.M.-D.)
- Clinical and Translational Research Group in Cardiology, Health Research Institute Hospital La Fe (IIS La Fe), 46026 Valencia, Spain; (E.R.-L.); (E.T.); (M.P.)
| | - Luis Almenar
- Heart Failure and Transplantation Unit, Cardiology Department, University and Polytechnic La Fe Hospital, 46026 Valencia, Spain; (I.S.-L.); (M.E.); (R.L.-V.); (M.A.A.); (L.A.); (L.M.-D.)
- Clinical and Translational Research Group in Cardiology, Health Research Institute Hospital La Fe (IIS La Fe), 46026 Valencia, Spain; (E.R.-L.); (E.T.); (M.P.)
- Center for Biomedical Research Network on Cardiovascular Diseases (Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares: CIBERCV), 28029 Madrid, Spain
| | - Luis Martínez-Dolz
- Heart Failure and Transplantation Unit, Cardiology Department, University and Polytechnic La Fe Hospital, 46026 Valencia, Spain; (I.S.-L.); (M.E.); (R.L.-V.); (M.A.A.); (L.A.); (L.M.-D.)
- Clinical and Translational Research Group in Cardiology, Health Research Institute Hospital La Fe (IIS La Fe), 46026 Valencia, Spain; (E.R.-L.); (E.T.); (M.P.)
- Center for Biomedical Research Network on Cardiovascular Diseases (Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares: CIBERCV), 28029 Madrid, Spain
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Burdine RD, Preston CC, Leonard RJ, Bradley TA, Faustino RS. Nucleoporins in cardiovascular disease. J Mol Cell Cardiol 2020; 141:43-52. [PMID: 32209327 DOI: 10.1016/j.yjmcc.2020.02.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 02/19/2020] [Accepted: 02/25/2020] [Indexed: 01/01/2023]
Abstract
Cardiovascular disease is a pressing health problem with significant global health, societal, and financial burdens. Understanding the molecular basis of polygenic cardiac pathology is thus essential to devising novel approaches for management and treatment. Recent identification of uncharacterized regulatory functions for a class of nuclear envelope proteins called nucleoporins offers the opportunity to understand novel putative mechanisms of cardiac disease development and progression. Consistent reports of nucleoporin deregulation associated with ischemic and dilated cardiomyopathies, arrhythmias and valvular disorders suggests that nucleoporin impairment may be a significant but understudied variable in cardiopathologic disorders. This review discusses and converges existing literature regarding nuclear pore complex proteins and their association with cardiac pathologies, and proposes a role for nucleoporins as facilitators of cardiac disease.
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Affiliation(s)
- Ryan D Burdine
- Genetics and Genomics Group, Sanford Research, 2301 E. 60(th) Street N., Sioux Falls, SD 57104, United States of America; School of Health Sciences, University of South Dakota, 414 E Clark St, Vermillion, SD 57069, United States of America
| | - Claudia C Preston
- Genetics and Genomics Group, Sanford Research, 2301 E. 60(th) Street N., Sioux Falls, SD 57104, United States of America
| | - Riley J Leonard
- Genetics and Genomics Group, Sanford Research, 2301 E. 60(th) Street N., Sioux Falls, SD 57104, United States of America
| | - Tyler A Bradley
- Genetics and Genomics Group, Sanford Research, 2301 E. 60(th) Street N., Sioux Falls, SD 57104, United States of America
| | - Randolph S Faustino
- Genetics and Genomics Group, Sanford Research, 2301 E. 60(th) Street N., Sioux Falls, SD 57104, United States of America; Department of Pediatrics, Sanford School of Medicine of the University of South Dakota, 1400 W. 22(nd) Street, Sioux Falls, SD 57105, United States of America.
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Montalvo-Quiros S, Luque-Garcia JL. Combination of bioanalytical approaches and quantitative proteomics for the elucidation of the toxicity mechanisms associated to TiO2 nanoparticles exposure in human keratinocytes. Food Chem Toxicol 2019; 127:197-205. [DOI: 10.1016/j.fct.2019.03.036] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Revised: 02/27/2019] [Accepted: 03/19/2019] [Indexed: 02/08/2023]
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Wen Z, Zou X, Xie X, Zheng S, Chen X, Zhu K, Dong S, Liang J, Huang X, Liu D, Wang Y, Liu Y, Wu J, Ying Y, Liu K, Lu C, Zhang B, Yang G, Jing C, Nie L. Association of Polymorphisms in miRNA Processing Genes With Type 2 Diabetes Mellitus and Its Vascular Complications in a Southern Chinese Population. Front Endocrinol (Lausanne) 2019; 10:461. [PMID: 31354628 PMCID: PMC6639830 DOI: 10.3389/fendo.2019.00461] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Accepted: 06/25/2019] [Indexed: 01/12/2023] Open
Abstract
Objective: To evaluate the potential association between the genetic variants in miRNA processing genes (RAN, XPO5, DICER1, and TARBP2) and susceptibility to type 2 diabetes mellitus (T2DM) and its vascular complications, as well as to further investigate their interaction with environmental factors in type 2 diabetes. Methods: We conducted a case-control study in genotyping of five polymorphic loci, including RAN rs14035, XPO5 rs11077, DICER1 rs13078, DICER1 rs3742330, and TARBP2 rs784567, in miRNA processing genes to explore the risk factors for T2DM and diabetic vascular complications. Haplotype analyses, interactions of gene-gene and interactions of gene-environment were performed too. Results: We identified a 36% decreased risk of developing T2DM in individuals with the minor A allele in DICER1 rs13078 (OR: 0.64; 95%CI: 0.42-0.95; P: 0.026). The AA haplotype in DICER1 was also associated with a protective effect on T2DM compared with the AT haplotype (OR: 0.63; 95%CI: 0.42-0.94; P-value: 0.023). T2DM patients with the TT+TC genotype at RAN rs14035 had a 1.89-fold higher risk of developing macrovascular complications than patients with the CC genotype (OR: 1.89; 95%CI: 1.04-3.45; P-value: 0.037). We also identified two three-factor interaction models. One is a three-factor [DICER1 rs13078, body mass index (BMI), and triglyceride (TG)] interaction model for T2DM (OR: 5.93; 95%CI: 1.25-28.26; P = 0.025). Another three-factor [RAN rs14035, hypertension (HP), and duration of T2DM (DOD)] interaction model was found for macrovascular complications of T2DM (OR = 41.60, 95%CI = 11.75-147.35, P < 0.001). Conclusion: Our study provides new evidence that two single nucleotide polymorphisms (SNPs) of the miRNA processing genes, DICER1 and RAN, and their interactions with certain environmental factors might contribute to the risk of T2DM and its vascular complications in the southern Chinese population.
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Affiliation(s)
- Zihao Wen
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Xiaoqian Zou
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Xin Xie
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Shaoling Zheng
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Xiaojing Chen
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Kehui Zhu
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Shirui Dong
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Jiayu Liang
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Xiuxia Huang
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Dandan Liu
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Yao Wang
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Yumei Liu
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Jing Wu
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Yuting Ying
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Kailiang Liu
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Congying Lu
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Baohuan Zhang
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
| | - Guang Yang
- Department of Pathogen Biology, School of Medicine, Jinan University, Guangzhou, China
- Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou, China
- *Correspondence: Guang Yang
| | - Chunxia Jing
- Department of Epidemiology, School of Medicine, Jinan University, Guangzhou, China
- Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou, China
- Chunxia Jing
| | - Lihong Nie
- Department of Endocrine, The First Affiliated Hospital of Jinan University, Guangzhou, China
- Lihong Nie
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Li TD, Zeng ZH. Adiponectin as a potential therapeutic target for the treatment of restenosis. Biomed Pharmacother 2018; 101:798-804. [PMID: 29525676 DOI: 10.1016/j.biopha.2018.03.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Revised: 02/28/2018] [Accepted: 03/02/2018] [Indexed: 12/14/2022] Open
Abstract
Restenosis is a pathologic re-narrowing of a coronary artery lesion after mechanical injury. Its pathophysiological mechanisms have not been fully elucidated at present, but are thought to include inflammation, vascular smooth muscle cell (VSMC) proliferation, and matrix remodeling, beginning with insufficient endothelium healing. Restenosis presents with angina symptoms or acute coronary syndromes and lead to a revascularization, either with coronary artery bypass or repeat percutaneous coronary intervention. Some studies have reported that hypoadiponectinemia has been an independent risk factor for the onset of acute coronary syndromes and restenosis. Accumulating evidence shows that low concentrations of adiponectin may be involved in impairing endothelium functions, inflammation, and VSMC proliferation that lead to restenosis. Preclinical studies have proven that adiponectin promotes endothelium healing, effectively inhibits inflammation, and maintains contractile phenotypes of VSMCs, indicating that it may be developed as a new therapeutic target for the treatment of restenosis.
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Affiliation(s)
- Tu di Li
- Department of Cardiovascular Diseases, The First Affiliated Hospital of Guangdong Pharmaceutical University, China
| | - Zhi Huan Zeng
- Department of Cardiovascular Diseases, The First Affiliated Hospital of Guangdong Pharmaceutical University, China.
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8
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Fujiwara K, Hasegawa K, Oka M, Yoneda Y, Yoshikawa K. Terminal differentiation of cortical neurons rapidly remodels RanGAP-mediated nuclear transport system. Genes Cells 2016; 21:1176-1194. [DOI: 10.1111/gtc.12434] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2016] [Accepted: 08/16/2016] [Indexed: 12/22/2022]
Affiliation(s)
- Kazushiro Fujiwara
- Institute for Protein Research; Osaka University; Suita Osaka 565-0871 Japan
| | - Koichi Hasegawa
- Institute for Protein Research; Osaka University; Suita Osaka 565-0871 Japan
| | - Masahiro Oka
- National Institutes of Biomedical Innovation, Health and Nutrition; Ibaraki Osaka 567-0085 Japan
| | - Yoshihiro Yoneda
- National Institutes of Biomedical Innovation, Health and Nutrition; Ibaraki Osaka 567-0085 Japan
| | - Kazuaki Yoshikawa
- Institute for Protein Research; Osaka University; Suita Osaka 565-0871 Japan
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Ritterhoff T, Das H, Hofhaus G, Schröder RR, Flotho A, Melchior F. The RanBP2/RanGAP1*SUMO1/Ubc9 SUMO E3 ligase is a disassembly machine for Crm1-dependent nuclear export complexes. Nat Commun 2016; 7:11482. [PMID: 27160050 PMCID: PMC4866044 DOI: 10.1038/ncomms11482] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2015] [Accepted: 03/31/2016] [Indexed: 02/07/2023] Open
Abstract
Continuous cycles of nucleocytoplasmic transport require disassembly of transport receptor/Ran-GTP complexes in the cytoplasm. A basic disassembly mechanism in all eukaryotes depends on soluble RanGAP and RanBP1. In vertebrates, a significant fraction of RanGAP1 stably interacts with the nucleoporin RanBP2 at a binding site that is flanked by FG-repeats and Ran-binding domains, and overlaps with RanBP2's SUMO E3 ligase region. Here, we show that the RanBP2/RanGAP1*SUMO1/Ubc9 complex functions as an autonomous disassembly machine with a preference for the export receptor Crm1. We describe three in vitro reconstituted disassembly intermediates, which show binding of a Crm1 export complex via two FG-repeat patches, cargo-release by RanBP2's Ran-binding domains and retention of free Crm1 at RanBP2 after Ran-GTP hydrolysis. Intriguingly, all intermediates are compatible with SUMO E3 ligase activity, suggesting that the RanBP2/RanGAP1*SUMO1/Ubc9 complex may link Crm1- and SUMO-dependent functions.
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Affiliation(s)
- Tobias Ritterhoff
- Zentrum für Molekulare Biologie der Universität Heidelberg, DKFZ-ZMBH Alliance, Heidelberg 69120, Germany
- Department of Biochemistry, University of Washington, Seattle, Washington 98195, USA
| | - Hrishikesh Das
- Zentrum für Molekulare Biologie der Universität Heidelberg, DKFZ-ZMBH Alliance, Heidelberg 69120, Germany
- Cryo Electron Microscopy, CellNetworks, BioQuant, Universitätsklinikum Heidelberg, Heidelberg 69120, Germany
| | - Götz Hofhaus
- Cryo Electron Microscopy, CellNetworks, BioQuant, Universitätsklinikum Heidelberg, Heidelberg 69120, Germany
| | - Rasmus R. Schröder
- Cryo Electron Microscopy, CellNetworks, BioQuant, Universitätsklinikum Heidelberg, Heidelberg 69120, Germany
| | - Annette Flotho
- Zentrum für Molekulare Biologie der Universität Heidelberg, DKFZ-ZMBH Alliance, Heidelberg 69120, Germany
| | - Frauke Melchior
- Zentrum für Molekulare Biologie der Universität Heidelberg, DKFZ-ZMBH Alliance, Heidelberg 69120, Germany
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