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Jia Y, Pan J. CKLF1, transcriptionally activated by FOXC1, promotes hypoxia/reoxygenation‑induced oxidative stress and inflammation in H9c2 cells by NLRP3 inflammasome activation. Exp Ther Med 2024; 27:59. [PMID: 38234613 PMCID: PMC10790169 DOI: 10.3892/etm.2023.12347] [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: 07/12/2023] [Accepted: 08/11/2023] [Indexed: 01/19/2024] Open
Abstract
Myocardial ischemia/reperfusion (I/R) injury is a clinical challenge in the treatment of ischemic heart disease. The present study aimed to establish a hypoxia/reoxygenation (H/R)-induced H9c2 cell model to explore the role and mechanism of chemokine-like factor 1 (CKLF1) in myocardial I/R injury. First, CKLF1 expression was measured in H/R-induced H9c2 cells by reverse transcription-quantitative PCR and western blotting. Subsequently, after CKLF1 silencing, cell viability and apoptosis were evaluated by Cell Counting Kit-8 assay and flow cytometry. In addition, 2,7-dichlorodihydrofluorescein diacetate staining was used to assess the levels of cellular reactive oxygen species. Additionally, the levels of superoxide dismutase, glutathione peroxidase and malondialdehyde, and the contents of inflammatory factors IL-6, IL-1β and TNF-α were detected using corresponding commercially available kits. Western blotting was used to examine the expression levels of proteins involved in the NOD-like receptor family, pyrin domain containing 3 (NLRP3) inflammasome. The JASPAR database predicted that forkhead box protein C1 (FOXC1) would bind to the CKLF1 promoter region, and dual luciferase and chromatin immunoprecipitation assays were performed to verify it. Subsequently, FOXC1 overexpression and CKLF1 silencing were used to clarify the regulatory mechanism of FOXC1 on CKLF1 in H/R-induced H9c2 cells. The results revealed that CKLF1 expression was markedly enhanced in H/R-stimulated H9c2 cells. CKLF1 knockdown enhanced the viability and inhibited the apoptosis of H9c2 cells exposed to H/R. Moreover, the oxidative stress and inflammation induced by H/R were alleviated following CKLF1 silencing. CKLF1 knockdown also inhibited NLRP3 inflammasome activation. Furthermore, FOXC1 bound to the CKLF1 promoter region to upregulate CKLF1 expression, and FOXC1 overexpression alleviated the effects of CKLF1 knockdown on H9c2 cell damage induced by H/R via activation of the NLRP3 inflammasome. In conclusion, CKLF1 transcriptionally activated by FOXC1 may promote H/R-induced oxidative stress and inflammation in H9c2 cells via NLRP3 inflammasome activation.
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Affiliation(s)
- Yinfeng Jia
- Department of Cardiovascular Medicine, The Second People's Hospital of Yueqing, Wenzhou, Zhejiang 325608, P.R. China
| | - Jiansheng Pan
- Department of Cardiovascular Medicine, The Second People's Hospital of Yueqing, Wenzhou, Zhejiang 325608, P.R. China
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2
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Li Y, Yu H, Feng J. Role of chemokine-like factor 1 as an inflammatory marker in diseases. Front Immunol 2023; 14:1085154. [PMID: 36865551 PMCID: PMC9971601 DOI: 10.3389/fimmu.2023.1085154] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 01/30/2023] [Indexed: 02/16/2023] Open
Abstract
Immunoinflammatory mechanisms have been incrementally found to be involved in the pathogenesis of multiple diseases, with chemokines being the main drivers of immune cell infiltration in the inflammatory response. Chemokine-like factor 1 (CKLF1), a novel chemokine, is highly expressed in the human peripheral blood leukocytes and exerts broad-spectrum chemotactic and pro-proliferative effects by activating multiple downstream signaling pathways upon binding to its functional receptors. Furthermore, the relationship between CKLF1 overexpression and various systemic diseases has been demonstrated in both in vivo and in vitro experiments. In this context, it is promising that clarifying the downstream mechanism of CKLF1 and identifying its upstream regulatory sites can yield new strategies for targeted therapeutics of immunoinflammatory diseases.
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Affiliation(s)
- Yutong Li
- Department of Neurology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Haiyang Yu
- Department of Neurology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Juan Feng
- Department of Neurology, Shengjing Hospital of China Medical University, Shenyang, China
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3
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Chemokine-like factor-like MARVEL transmembrane domain-containing family in autoimmune diseases. Chin Med J (Engl) 2021; 133:951-958. [PMID: 32195671 PMCID: PMC7176445 DOI: 10.1097/cm9.0000000000000747] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
The chemokine-like factor (CKLF)-like MARVEL transmembrane domain-containing family (CMTM) is widely expressed in the immune system. Abnormal expression of CMTM is associated with the development of various diseases. This article summarizes the relevant research on the role of the CMTM family in immune disorders. This information will increase our understanding of pathogenesis and identify promising targets for the diagnosis and treatment of autoimmune diseases. The CMTM family is highly expressed in peripheral blood mononuclear cells. CKLF1 may be involved in the development of arthritis through its interaction with C-C chemokine receptor 4. CKLF1 is associated with the pathogenesis of lupus nephritis and psoriasis. Both CMTM4 and CMTM5 are associated with the pathogenesis of systemic lupus erythematosus. CMTM1, CMTM2, CMTM3, and CMTM6 play a role in rheumatoid arthritis, systemic sclerosis, Sjögren syndrome, and anti-phospholipid syndrome, respectively. The CMTM family has been implicated in various autoimmune diseases. Further research on the mechanism of the action of CMTM family members may lead to the development of new treatment strategies for autoimmune diseases.
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Liu X, Qu C, Zhang Y, Fang J, Teng L, Zhang R, Zhang X, Shen C. Chemokine-like factor 1 (CKLF1) aggravates neointimal hyperplasia through activating the NF-κB /VCAM-1 pathway. FEBS Open Bio 2020; 10:1880-1890. [PMID: 32741140 PMCID: PMC7459414 DOI: 10.1002/2211-5463.12942] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 07/02/2020] [Accepted: 07/27/2020] [Indexed: 12/16/2022] Open
Abstract
Neointimal hyperplasia (NIH) is a complicated inflammatory process contributing to vascular restenosis. The present study aimed to explore whether chemokine-like factor 1 (CKLF1) aggravates NIH via the nuclear factor-kappa B (NF-κB)/vascular cell adhesion molecule-1 (VCAM-1) pathway. We found the expression of CKLF1 and VCAM-1 significantly increased in human carotid plaques compared to the control. In vivo, CKLF1 overexpression induced a thicker neointimal formation and VCAM-1 expression was correspondingly upregulated. In vitro, CKLF1 activated NF-κB and induced VCAM-1 upregulation in human aortic smooth muscle cells (HASMCs). Functional experiments demonstrated that CKLF1 promoted monocyte adhesion and HASMC migration via VCAM-1. These results suggest CKLF1 accelerates NIH by promoting monocyte adhesion and HASMC migration via the NF-κB/VCAM-1 pathway. Our findings contribute to a better understanding of the mechanisms underlying the causality of CKLF1 on NIH and could prove beneficial in designing therapeutic modalities with a focus on CKLF1.
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Affiliation(s)
- Xinnong Liu
- Vascular Surgery Center, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Chengjia Qu
- Vascular Surgery Center, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yongbao Zhang
- Vascular Surgery Center, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jie Fang
- Vascular Surgery Center, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Lequn Teng
- Vascular Surgery Center, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Rujiao Zhang
- College of Clinical Medicine, Hebei University, Baoding, China
| | - Xiangyu Zhang
- Department of General Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Chenyang Shen
- Vascular Surgery Center, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Cai X, Deng J, Ming Q, Cai H, Chen Z. Chemokine-like factor 1: A promising therapeutic target in human diseases. Exp Biol Med (Maywood) 2020; 245:1518-1528. [PMID: 32715782 DOI: 10.1177/1535370220945225] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
IMPACT STATEMENT CKLF1, a recently identified chemokine, has been reported by a number of studies to play important roles in quite many diseases. However, the potential pathways that CKLF1 may be involved are not manifested well yet. In our review, we showed the basic molecular structure and major functions of this novel chemokine, and implication in human diseases, such as tumors. To attract more attention, we summarized its signaling pathways and clearly present them in a set of figures. With the overview of the experimental trial of CKLF1-targeting medicines in animal models, we hope to provide a few important insights about CKLF1 to both medical researchers and pharmacy.
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Affiliation(s)
- Xiaopeng Cai
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Jingwen Deng
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Qianqian Ming
- Department of Drug Discovery, 25301Moffitt Cancer Center and Research Institute, Tampa, FL 33612, USA
| | - Huiqiang Cai
- Department of Clinical Medicine, University of Aarhus, Aarhus N 8200, Denmark
| | - Zhi Chen
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
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Wu G, Deng Z, Jin Z, Wang J, Xu B, Zeng J, Peng M, Wen Z, Guo Y. Identification of Prognostic Immune-Related Genes in Pancreatic Adenocarcinoma and Establishment of a Prognostic Nomogram: A Bioinformatic Study. BIOMED RESEARCH INTERNATIONAL 2020; 2020:1346045. [PMID: 32596278 PMCID: PMC7301181 DOI: 10.1155/2020/1346045] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 05/13/2020] [Indexed: 12/24/2022]
Abstract
BACKGROUND The prognosis of pancreatic adenocarcinoma (PAAD) is extremely poor and has not been improved. Thus, an effective method to assess the prognosis of patients must be established to improve their survival rate. METHOD This study investigated immune-related genes that could be used as potential therapeutic targets for PAAD. Level 3 gene expression data from the PAAD cohort and the relevant clinical information were obtained from The Cancer Genome Atlas (TCGA) database. For validation, other PAAD datasets (DSE62452) were downloaded from the Gene Expression Omnibus (GEO) database. The PAAD datasets from TCGA and GEO were used to screen immune-related genes through the Molecular Signatures Database using gene set enrichment analysis. Then, the overlapping immune-related genes of the two datasets were identified. Coexpression networks of the immune-related genes were constructed. RESULTS A signature of three immune-related genes (CKLF, ERAP2, and EREG) was identified in patients with PAAD. The signature could be used to divide the patients with PAAD into high- and low-risk groups based on their median risk score. Multivariate Cox regression analysis was performed to determine the independent prognostic factors of PAAD. Time-dependent receiver operating characteristic (ROC) curve analysis was conducted to assess the prediction accuracy of the prognostic signature. Last, a nomogram was established to assess the individualized prognosis prediction model based on the clinical characteristics and risk score of the TCGA PAAD dataset. The accuracy of the prognostic signature was further evaluated through functional evaluation and principal component analysis. CONCLUSIONS The results indicated that the signature of three immune-related genes had excellent predictive value for PAAD. These findings might help improve personalized treatment and medical decisions.
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Affiliation(s)
- Guolin Wu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Zhenfeng Deng
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Zongrui Jin
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Jilong Wang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Banghao Xu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Jingjing Zeng
- Department of Pathology, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Minhao Peng
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Zhang Wen
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Ya Guo
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
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Duan Y, Zhang Y, Qu C, Yu W, Shen C. CKLF1 aggravates neointimal hyperplasia by inhibiting apoptosis of vascular smooth muscle cells through PI3K/AKT/NF-κB signaling. Biomed Pharmacother 2019; 117:108986. [PMID: 31387172 DOI: 10.1016/j.biopha.2019.108986] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 05/08/2019] [Accepted: 05/13/2019] [Indexed: 12/20/2022] Open
Abstract
Chemokine-like factor 1 (CKLF1) is a cytokine, which has a detrimental effect on the multiple disease progression. Our previous studies reported that arterial injury induced the upregulation of CKLF1 expression in artery at 7-14 days after injury. Here, using a rat carotid balloon injury model, we found that CKLF1 knockdown in the injured site abolished neointimal formation and even decreased medial area; contrarily, CKLF1 overexpression developed a thicker neointima than controls, demonstrating that CKLF1 exerted positive effects on neointimal hyperplasia and the accumulation of vascular smooth muscle cells (VSMC). The mechanism study indicated that CKLF1 reduced susceptibility to the cell cycle G2/M arrest and apoptosis, and thereby speeding up VSMC accumulation. This role of CKLF1 was tightly associated with phosphatidylinositol (PI) 3-kinase signaling pathway. CKLF1 increased the expression of four isoforms of the PI3-kinase catalytic subunits, which in turn activated its downstream targets Akt and an effector NF-κB accepted as critical transcription factors of cell survival and proliferation. Furthermore, RNA-sequencing analysis revealed that CKLF1 had wide-ranging roles in regulating the expression of genes that mainly engaged in cell apoptosis and innate immune response. Collectively, the data allow us to conclude that high level CKLF1 after artery injury switches the balance of VSMC proliferation and apoptosis through PI3K/AKT/NF-κB signaling and consequently leads to neointimal hyperplasia. The findings shed insight into new treatment strategies to limit restenosis based on CKLF1 as a future target.
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Affiliation(s)
- Yanyu Duan
- Department of Vascular Surgery, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China; Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, First Affiliated Hospital of Gannan Medical University, Gannan Medical University, Ganzhou 341000, China
| | - Yongbao Zhang
- Department of Vascular Surgery, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Chengjia Qu
- Department of Vascular Surgery, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Weidong Yu
- Department of Central Laboratory, Peking University People's Hospital, Beijing 100044, China
| | - Chenyang Shen
- Department of Vascular Surgery, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China.
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8
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Zhang K, Shi S, Han W. Research progress in cytokines with chemokine-like function. Cell Mol Immunol 2018; 15:660-662. [PMID: 29176740 PMCID: PMC6123495 DOI: 10.1038/cmi.2017.121] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Accepted: 10/10/2017] [Indexed: 01/01/2023] Open
Affiliation(s)
- Kai Zhang
- Department of Immunology, School of Basic Medical Sciences, Peking University Health Science Center, Key Laboratory of Medical Immunology, Ministry of Health (Peking University), 100191, Beijing, China
- Peking, University Center for Human Disease Genomics, 100191, Beijing, China
| | - Shuang Shi
- Peking, University Center for Human Disease Genomics, 100191, Beijing, China
| | - Wenling Han
- Department of Immunology, School of Basic Medical Sciences, Peking University Health Science Center, Key Laboratory of Medical Immunology, Ministry of Health (Peking University), 100191, Beijing, China.
- Peking, University Center for Human Disease Genomics, 100191, Beijing, China.
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Liu DD, Song XY, Yang PF, Ai QD, Wang YY, Feng XY, He X, Chen NH. Progress in pharmacological research of chemokine like factor 1 (CKLF1). Cytokine 2018; 102:41-50. [DOI: 10.1016/j.cyto.2017.12.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 11/07/2017] [Accepted: 12/02/2017] [Indexed: 12/14/2022]
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C19, a C-terminal peptide of CKLF1, decreases inflammation and proliferation of dermal capillaries in psoriasis. Sci Rep 2017; 7:13890. [PMID: 29066845 PMCID: PMC5655640 DOI: 10.1038/s41598-017-13799-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Accepted: 10/02/2017] [Indexed: 12/26/2022] Open
Abstract
Psoriasis is a chronic inflammatory autoimmune disease with undefined etiology. Chemokine-like factor 1 (CKLF1), a human cytokine that is a functional ligand for CCR4, displays chemotactic activities in a wide spectrum of leukocytes and plays an important role in psoriasis development. In previous study, our laboratory found that the expression of CKLF1 increased in psoriatic lesions. C19 as a CKLF1's C-terminal peptide has been reported to exert inhibitory effects on a variety of diseases. However, the protective roles of C19 in endothelial cells proliferation and inflammatory cells chemotaxis remain elusive in psoriasis. In this study we examined the protective effect of C19 on both the cellular model and the animal model. The effects of C19 on endothelial cells proliferation and inflammatory cells chemotaxis were investigated in cultured human umbilical vein endothelial cells (HUVECs) and imiquimod-induced psoriasiform inflammation of BALB/c mice based on techniques including immunohistochemical analysis, quantitative real-time PCR (qRT-PCR), western blot, transwell, and EdU assay. This study shows that CKLF1-C19 significantly protects against psoriasis by inhibiting the infiltration of inflammatory cells and proliferation of microvascular cells, possibly via inhibiting MAPK pathways.
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Yang PF, Song XY, Zeng T, Ai QD, Liu DD, Zuo W, Zhang S, Xia CY, He X, Chen NH. IMM-H004, a coumarin derivative, attenuated brain ischemia/reperfusion injuries and subsequent inflammation in spontaneously hypertensive rats through inhibition of VCAM-1. RSC Adv 2017. [DOI: 10.1039/c7ra02154b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
We studied the effect of IMM-H004 in treating brain I/R injury in spontaneously hypertensive rats and showed that IMM-H004 could efficiently ameliorate neurological defects and infarct volume in a time and dose dependent manner.
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Affiliation(s)
- Peng-Fei Yang
- Department of State Key Laboratory of Bioactive Substances and Functions of Natural Medicines
- Institute of Materia Medica & Neuroscience Center
- Chinese Academy of Medical Sciences
- Peking Union Medical College
- Beijing 100050
| | - Xiu-Yun Song
- Department of State Key Laboratory of Bioactive Substances and Functions of Natural Medicines
- Institute of Materia Medica & Neuroscience Center
- Chinese Academy of Medical Sciences
- Peking Union Medical College
- Beijing 100050
| | - Ting Zeng
- College of Pharmacy
- Hunan University of Chinese Medicine
- Changsha
- China
| | - Qi-Di Ai
- College of Pharmacy
- Hunan University of Chinese Medicine
- Changsha
- China
| | - Dan-Dan Liu
- Tianjin University of Traditional Chinese Medicine
- Tianjin
- China
| | - Wei Zuo
- Department of State Key Laboratory of Bioactive Substances and Functions of Natural Medicines
- Institute of Materia Medica & Neuroscience Center
- Chinese Academy of Medical Sciences
- Peking Union Medical College
- Beijing 100050
| | - Shuai Zhang
- Department of State Key Laboratory of Bioactive Substances and Functions of Natural Medicines
- Institute of Materia Medica & Neuroscience Center
- Chinese Academy of Medical Sciences
- Peking Union Medical College
- Beijing 100050
| | - Cong-Yuan Xia
- Department of State Key Laboratory of Bioactive Substances and Functions of Natural Medicines
- Institute of Materia Medica & Neuroscience Center
- Chinese Academy of Medical Sciences
- Peking Union Medical College
- Beijing 100050
| | - Xin He
- Tianjin University of Traditional Chinese Medicine
- Tianjin
- China
| | - Nai-Hong Chen
- Department of State Key Laboratory of Bioactive Substances and Functions of Natural Medicines
- Institute of Materia Medica & Neuroscience Center
- Chinese Academy of Medical Sciences
- Peking Union Medical College
- Beijing 100050
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Li J, Bao X, Li Y, Wang Y, Zhao Z, Jin X. Study of the functional mechanisms of osteopontin and chemokine-like factor 1 in the development and progression of abdominal aortic aneurysms in rats. Exp Ther Med 2016; 12:4007-4011. [PMID: 28101179 PMCID: PMC5228271 DOI: 10.3892/etm.2016.3891] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Accepted: 11/04/2016] [Indexed: 12/16/2022] Open
Abstract
The aim of the study was to investigate the functional mechanisms of osteopontin (Opn) and chemokine-like factor 1 (Cklf1) during the development and progression of abdominal aortic aneurysms (AAA) in rats. Healthy adult Sprague-Dawley rats (n=30) were randomly divided into the AAA, control and sham groups (10 rats/group) and experimental rat models of AAA were generated by enzyme perfusion in abdominal aorta for 30 min. The AAA formation was assessed by measuring the aortal diameter and hematoxylin and eosin staining as well as specific staining to detect the structural changes of the aorta and inflammatory cell infiltration. Immunohistochemistry, western blot analysis and statistical analysis were also performed to examine the expression levels of Opn, Cklf1 and matrix metalloproteinase (MMP)-2 in the arterial tissue. Rat models of AAA were successfully established by protease perfusion. After perfusion, the diameter expansion rate of abdominal aorta was significantly higher (P<0.01) compared to controls, elastin present at the middle layer was significantly reduced and inflammatory cell infiltration was significantly higher in AAA rats. The expression of Opn, Cklf1 and MMP-2 in the AAA group was significantly increased compared to the control group (P<0.05) as revealed by immunohistochemical staining. The western blot analysis revealed that, the expression levels of Opn, Cklf1 and MMP-2 in the AAA group were significantly higher than the sham and control groups (P<0.01). We also found that the expression of Opn and MMP-2 was positively correlated. In conclusion, in rat models of AAA, Opn and Cklf1 function synergistically to upregulate the expression of MMP-2, causing accelerated degradation of extracellular matrix and eventually leading to the development and progression of AAA.
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Affiliation(s)
- Jun Li
- Department of Vascular Surgery, Shandong Provincial Hospital, Shandong University, Jinan, Shandong 250021, P.R. China; Department of Vascular Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
| | - Xia Bao
- Department of Vascular Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
| | - Yongxin Li
- Department of Vascular Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
| | - Yuewei Wang
- Department of Vascular Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
| | - Zonggang Zhao
- Department of Vascular Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
| | - Xing Jin
- Department of Vascular Surgery, Shandong Provincial Hospital, Shandong University, Jinan, Shandong 250021, P.R. China
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Li T, Cheng Y, Wang P, Wang W, Hu F, Mo X, Lv H, Xu T, Han W. CMTM4 is frequently downregulated and functions as a tumour suppressor in clear cell renal cell carcinoma. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2015; 34:122. [PMID: 26474560 PMCID: PMC4609138 DOI: 10.1186/s13046-015-0236-4] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Accepted: 10/05/2015] [Indexed: 11/10/2022]
Abstract
BACKGROUND Chemokine-like factor (CKLF)-like MARVEL transmembrane domain-containing family (CMTM) is a gene family involved in multiple malignancies. CMTM4 is a member of this family and is located at chromosome 16q22.1, a locus that harbours a number of tumour suppressor genes. It has been defined as a regulator of cell cycle and division in HeLa cells; however, its roles in tumourigenesis remain poorly studied. METHODS An integrated bioinformatics analysis based on the array data from the GEO database was conducted to view the differential expression of CMTM4 across multiple cancers and their corresponding control tissues. Primary clear cell renal cell carcinoma (ccRCC) and the paired adjacent non-tumour tissues were then collected to examine the expression of CMTM4 by western blotting, immunohistochemistry, and quantitative RT-PCR. The ccRCC cell lines A498 and 786-O and the normal renal tubular epithelial cell line HK-2 were also tested for CMTM4 expression by western blotting. Cell Counting Kit-8 (CCK-8) and viable cell counting assays were used to delineate the growth curves of 786-O cells after CMTM4 overexpression or knockdown. Wound healing and transwell assays were performed to assess the cells' ability to migrate. The effects of CMTM4 on cellular apoptosis and cell cycle progression were analysed by flow cytometry, and cell cycle hallmarks were detected by western blotting and RT-PCR. The xenograft model in nude mice was used to elucidate the function of CMTM4 in tumourigenesis ex vivo. RESULTS By omic data analysis, we found a substantial downregulation of CMTM4 in ccRCC. Western blotting then confirmed that CMTM4 was dramatically reduced in 86.9 % (53/61) of ccRCC tissues compared with the paired adjacent non-tumour tissues, as well as in the 786-O and A498 ccRCC cell lines. Restoration of CMTM4 significantly suppressed 786-O cell growth by inducing G2/M cell cycle arrest and p21 upregulation, and cell migration was also inhibited. However, knockdown of CMTM4 led to a completely opposite effect on these cell behaviours. Overexpression of CMTM4 also markedly inhibited the tumour xenograft growth in nude mice. CONCLUSIONS CMTM4 is downregulated and exhibits tumour-suppressor activities in ccRCC, and could be exploited as a target for ccRCC treatment.
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Affiliation(s)
- Ting Li
- Peking University Center for Human Disease Genomics, Department of Immunology, Key Laboratory of Medical Immunology, Ministry of Health, School of Basic Medical Sciences, Peking University Center for Human Disease Genomics, Peking University Health Science Center, 38 Xueyuan Road, Beijing, 100191, China.
| | - Yingying Cheng
- Peking University Center for Human Disease Genomics, Department of Immunology, Key Laboratory of Medical Immunology, Ministry of Health, School of Basic Medical Sciences, Peking University Center for Human Disease Genomics, Peking University Health Science Center, 38 Xueyuan Road, Beijing, 100191, China.
| | - Pingzhang Wang
- Peking University Center for Human Disease Genomics, Department of Immunology, Key Laboratory of Medical Immunology, Ministry of Health, School of Basic Medical Sciences, Peking University Center for Human Disease Genomics, Peking University Health Science Center, 38 Xueyuan Road, Beijing, 100191, China.
| | - Wenyan Wang
- Peking University Center for Human Disease Genomics, Department of Immunology, Key Laboratory of Medical Immunology, Ministry of Health, School of Basic Medical Sciences, Peking University Center for Human Disease Genomics, Peking University Health Science Center, 38 Xueyuan Road, Beijing, 100191, China.
| | - Fengzhan Hu
- Department of Urology, Peking University People's Hospital, 11 Xi-Zhi-Men South Street, Beijing, 100044, China.
| | - Xiaoning Mo
- Peking University Center for Human Disease Genomics, Department of Immunology, Key Laboratory of Medical Immunology, Ministry of Health, School of Basic Medical Sciences, Peking University Center for Human Disease Genomics, Peking University Health Science Center, 38 Xueyuan Road, Beijing, 100191, China.
| | - Hongxia Lv
- Peking University Center for Human Disease Genomics, Department of Immunology, Key Laboratory of Medical Immunology, Ministry of Health, School of Basic Medical Sciences, Peking University Center for Human Disease Genomics, Peking University Health Science Center, 38 Xueyuan Road, Beijing, 100191, China.
| | - Tao Xu
- Department of Urology, Peking University People's Hospital, 11 Xi-Zhi-Men South Street, Beijing, 100044, China.
| | - Wenling Han
- Peking University Center for Human Disease Genomics, Department of Immunology, Key Laboratory of Medical Immunology, Ministry of Health, School of Basic Medical Sciences, Peking University Center for Human Disease Genomics, Peking University Health Science Center, 38 Xueyuan Road, Beijing, 100191, China.
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