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Gao Y, Wang Y, Li M, Gao C. Bioinformatics analysis of potential common pathogenic mechanisms for systemic lupus erythematosus and acute myocardial infarction. Lupus 2023; 32:1296-1309. [PMID: 37800460 DOI: 10.1177/09612033231202659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/07/2023]
Abstract
BACKGROUND Systemic lupus erythematosus (SLE) patients have a higher risk of acute myocardial infarction (AMI) compared to the general population. However, the underlying common mechanism of this association is not fully understood. This study aims to investigate the molecular mechanism of this complication. METHODS Gene expression profiles of SLE (GSE50772) and AMI (GSE66360) were obtained from the Gene Expression Omnibus (GEO) database. Common differentially expressed genes (DEGs) in SLE and AMI were identified, and functional annotation, protein-protein interaction (PPI) network analysis, module construction, and hub gene identification were performed. Additionally, transcription factor (TF)-gene regulatory network and TF-miRNA regulatory network were constructed for the hub genes. RESULTS 70 common DEGs (7 downregulated genes and 63 upregulated genes) were identified and were mostly enriched in signaling pathways such as the IL-17 signaling pathway, TNF signaling pathway, lipid metabolism, and atherosclerosis. Using cytoHubba, 12 significant hub genes were identified, including IL1B, TNF, FOS, CXCL8, JUN, PTGS2, FN1, EGR1, CXCL1, DUSP1, MMP9, and ZFP36. CONCLUSIONS This study reveals a common pathogenesis of SLE and AMI and provides new perspectives for further mechanism research. The identified common pathways and hub genes may have important clinical implications for the prevention and treatment of AMI in SLE patients.
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Affiliation(s)
- Yang Gao
- Department of Cardiology, Zhengzhou University People's Hospital, Henan Provincial People's Hospital, Fuwai Central China Cardiovascular Hospital, Zhengzhou, Henan, China
| | - Yunxia Wang
- Department of Radiology, Henan University People's Hospital, Henan Provincial People's Hospital, Zhengzhou, Henan, China
| | - Muwei Li
- Department of Cardiology, Zhengzhou University People's Hospital, Henan Provincial People's Hospital, Fuwai Central China Cardiovascular Hospital, Zhengzhou, Henan, China
| | - Chuanyu Gao
- Department of Cardiology, Zhengzhou University People's Hospital, Henan Provincial People's Hospital, Fuwai Central China Cardiovascular Hospital, Zhengzhou, Henan, China
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Zhu F, Wang Q, Wang Z, Zhang X, Zhang B, Wang H. Metoprolol Mitigates Ischemic Heart Remodeling and Fibrosis by Increasing the Expression of AKAP5 in Ischemic Heart. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:5993459. [PMID: 36238650 PMCID: PMC9553363 DOI: 10.1155/2022/5993459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 09/07/2022] [Accepted: 09/20/2022] [Indexed: 11/18/2022]
Abstract
The harm of heart failure mainly causes patients to develop dyspnea, fatigue, fluid retention, and other symptoms, which impair patients' activity tolerance and lead to a dramatic decrease in patients' quality of life. The purpose of this study was to verify whether metoprolol regulates AKAP5 expression and test the role of AKAP5 postinjury in mitigating cardiac infarction-associated tissue remodeling and fibrosis. Sprague-Dawley (SD) rats underwent coronary artery ligation (CAL), which was followed immediately with metoprolol daily. And western blot and coimmunoprecipitation experiments were performed to detect the expression of related proteins in the sham-operated group, model group, and drug-treated group. HW/BW ratio and cardiac expression of COL1 and COL3 were increased in rats following CAL compared with shams. Treatment with metoprolol postinjury was associated with a decrease in HW/BW ratio and COL1/COL3 expression compared to uncontrolled rats. CAL resulted in decreased cardiac AKAP5 expression compared to the control group, while metoprolol treatment restored levels compared to baseline shams. Cardiac expression levels of NFATc3/p-NFATc3 and GATA4 were modest at baseline and increased with injury, whereas metoprolol suppressed gene expression to below injury-associated changes. Immunoprecipitation indicated that AKAP5 could bind and regulate PP2B. In summary, we know that metoprolol alleviates ischemic cardiac remodeling and fibrosis, and the mechanism of alleviating remodeling may improve cardiac AKAP5 expression and AKAP5-PP2B interaction.
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Affiliation(s)
- Feng Zhu
- Department of Cardiology, Yijishan Hospital of Wannan Medical College, Wuhu, China
| | - Qiushu Wang
- Department of Cardiology, Yijishan Hospital of Wannan Medical College, Wuhu, China
| | - Zhi Wang
- Department of Cardiology, Yijishan Hospital of Wannan Medical College, Wuhu, China
| | - Xu Zhang
- Department of Cardiology, Yijishan Hospital of Wannan Medical College, Wuhu, China
| | - Benkai Zhang
- Department of Cardiology, Yijishan Hospital of Wannan Medical College, Wuhu, China
| | - Hegui Wang
- Department of Cardiology, Yijishan Hospital of Wannan Medical College, Wuhu, China
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Silva GF, da Silva JS, de Alencar AKN, de Moraes Carvalho da Silva M, Montagnoli TL, de Souza Rocha B, de Freitas RHCN, Sudo RT, Fraga CAM, Zapata-Sudo G. Novel p38 Mitogen-Activated Protein Kinase Inhibitor Reverses Hypoxia-Induced Pulmonary Arterial Hypertension in Rats. Pharmaceuticals (Basel) 2022; 15:ph15070900. [PMID: 35890198 PMCID: PMC9316801 DOI: 10.3390/ph15070900] [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: 06/07/2022] [Revised: 07/05/2022] [Accepted: 07/16/2022] [Indexed: 11/22/2022] Open
Abstract
Mitogen-activated protein kinase (MAPK) signaling is strongly implicated in cardiovascular remodeling in pulmonary hypertension (PH) and right ventricle (RV) failure. The effects of a newly designed p38 inhibitor, LASSBio-1824, were investigated in experimentally induced PH. Male Wistar rats were exposed to hypoxia and SU5416 (SuHx), and normoxic rats were used as controls. Oral treatment was performed for 14 days with either vehicle or LASSBio-1824 (50 mg/kg). Pulmonary vascular resistance and RV structure and function were assessed by echocardiography and catheterization. Histological, immunohistochemical and Western blot analysis of lung and RV were performed to investigate cardiovascular remodeling and inflammation. Treatment with LASSBio-1824 normalized vascular resistance by attenuating vessel muscularization and endothelial dysfunction. In the heart, treatment decreased RV systolic pressure, hypertrophy and collagen content, improving cardiac function. Protein content of TNF-α, iNOS, phosphorylated p38 and caspase-3 were reduced both in lung vessels and RV tissues after treatment and a reduced activation of transcription factor c-fos was found in cardiomyocytes of treated SuHx rats. Therefore, LASSBio-1824 represents a potential candidate for remodeling-targeted treatment of PH.
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Affiliation(s)
- Grazielle Fernandes Silva
- Programa de Pesquisa em Desenvolvimento de Fármacos, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, RJ, Brazil; (G.F.S.); (J.S.d.S.); (A.K.N.d.A.); (M.d.M.C.d.S.); (T.L.M.); (B.d.S.R.); (R.H.C.N.d.F.); or (R.T.S.)
- Programa de Pós-Graduação em Cardiologia, Instituto do Coração Edson Saad, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-913, RJ, Brazil
| | - Jaqueline Soares da Silva
- Programa de Pesquisa em Desenvolvimento de Fármacos, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, RJ, Brazil; (G.F.S.); (J.S.d.S.); (A.K.N.d.A.); (M.d.M.C.d.S.); (T.L.M.); (B.d.S.R.); (R.H.C.N.d.F.); or (R.T.S.)
- Programa de Pós-Graduação em Cardiologia, Instituto do Coração Edson Saad, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-913, RJ, Brazil
| | - Allan Kardec Nogueira de Alencar
- Programa de Pesquisa em Desenvolvimento de Fármacos, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, RJ, Brazil; (G.F.S.); (J.S.d.S.); (A.K.N.d.A.); (M.d.M.C.d.S.); (T.L.M.); (B.d.S.R.); (R.H.C.N.d.F.); or (R.T.S.)
| | - Marina de Moraes Carvalho da Silva
- Programa de Pesquisa em Desenvolvimento de Fármacos, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, RJ, Brazil; (G.F.S.); (J.S.d.S.); (A.K.N.d.A.); (M.d.M.C.d.S.); (T.L.M.); (B.d.S.R.); (R.H.C.N.d.F.); or (R.T.S.)
- Programa de Pós-Graduação em Farmacologia e Química Medicinal, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, RJ, Brazil
| | - Tadeu Lima Montagnoli
- Programa de Pesquisa em Desenvolvimento de Fármacos, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, RJ, Brazil; (G.F.S.); (J.S.d.S.); (A.K.N.d.A.); (M.d.M.C.d.S.); (T.L.M.); (B.d.S.R.); (R.H.C.N.d.F.); or (R.T.S.)
- Programa de Pós-Graduação em Farmacologia e Química Medicinal, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, RJ, Brazil
| | - Bruna de Souza Rocha
- Programa de Pesquisa em Desenvolvimento de Fármacos, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, RJ, Brazil; (G.F.S.); (J.S.d.S.); (A.K.N.d.A.); (M.d.M.C.d.S.); (T.L.M.); (B.d.S.R.); (R.H.C.N.d.F.); or (R.T.S.)
- Programa de Pós-Graduação em Cardiologia, Instituto do Coração Edson Saad, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-913, RJ, Brazil
| | - Rosana Helena Coimbra Nogueira de Freitas
- Programa de Pesquisa em Desenvolvimento de Fármacos, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, RJ, Brazil; (G.F.S.); (J.S.d.S.); (A.K.N.d.A.); (M.d.M.C.d.S.); (T.L.M.); (B.d.S.R.); (R.H.C.N.d.F.); or (R.T.S.)
| | - Roberto Takashi Sudo
- Programa de Pesquisa em Desenvolvimento de Fármacos, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, RJ, Brazil; (G.F.S.); (J.S.d.S.); (A.K.N.d.A.); (M.d.M.C.d.S.); (T.L.M.); (B.d.S.R.); (R.H.C.N.d.F.); or (R.T.S.)
- Programa de Pós-Graduação em Farmacologia e Química Medicinal, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, RJ, Brazil
| | - Carlos Alberto Manssour Fraga
- Programa de Pesquisa em Desenvolvimento de Fármacos, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, RJ, Brazil; (G.F.S.); (J.S.d.S.); (A.K.N.d.A.); (M.d.M.C.d.S.); (T.L.M.); (B.d.S.R.); (R.H.C.N.d.F.); or (R.T.S.)
- Programa de Pós-Graduação em Farmacologia e Química Medicinal, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, RJ, Brazil
- Correspondence: (C.A.M.F.); or (G.Z.-S.); Tel./Fax: +55-21-39386478 (C.A.M.F.); +55-21-39386505 (G.Z.-S.)
| | - Gisele Zapata-Sudo
- Programa de Pesquisa em Desenvolvimento de Fármacos, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, RJ, Brazil; (G.F.S.); (J.S.d.S.); (A.K.N.d.A.); (M.d.M.C.d.S.); (T.L.M.); (B.d.S.R.); (R.H.C.N.d.F.); or (R.T.S.)
- Programa de Pós-Graduação em Cardiologia, Instituto do Coração Edson Saad, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-913, RJ, Brazil
- Programa de Pós-Graduação em Farmacologia e Química Medicinal, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, RJ, Brazil
- Correspondence: (C.A.M.F.); or (G.Z.-S.); Tel./Fax: +55-21-39386478 (C.A.M.F.); +55-21-39386505 (G.Z.-S.)
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Wang F, Sun C, Lv X, Sun M, Si C, Zhen Y, Guo J, Sun W, Ye Z, Wen J, Liu P. Identification of a Novel Gene Correlated With Vascular Smooth Muscle Cells Proliferation and Migration in Chronic Thromboembolic Pulmonary Hypertension. Front Physiol 2021; 12:744219. [PMID: 34858201 PMCID: PMC8632225 DOI: 10.3389/fphys.2021.744219] [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: 07/22/2021] [Accepted: 10/05/2021] [Indexed: 01/29/2023] Open
Abstract
Objective: Chronic thromboembolic pulmonary hypertension (CTEPH) is characterized by thrombofibrotic obstruction of the proximal pulmonary arteries, which result in vascular remodeling of the distal pulmonary artery. While the cellular and molecular mechanisms underlying CTEPH pathogenesis remain incompletely understood, recent evidence implicates vascular remodeling. Here, we identify the molecular mechanisms that contribute to vascular remodeling in CTEPH. Methods: Microarray data (GSE130391) for patients with CTEPH and healthy controls were downloaded from the Gene Expression Omnibus (GEO) and screened for differentially expressed genes (DEGs). DEGs were functionally annotated using Gene Ontology (GO) functional analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis. A protein–protein interaction (PPI) network was constructed to identify hub genes. Finally, pulmonary artery samples were harvested from patients with CTEPH (n = 10) and from controls (n = 10) and primary vascular smooth muscle cells (VSMCs) were cultured. Effects of the proto-oncogene FOS on VSMC proliferation and migration were assessed using expression and knockdown studies. Results: We detected a total of 292 DEGs, including 151 upregulated and 141 downregulated genes. GO analysis revealed enrichment of DEGs in biological processes of signal transduction, response to lipopolysaccharide, signal transduction, and myeloid dendritic cell differentiation. Molecular function analysis revealed enrichment in tumor necrosis factor (TNF)-activated receptor activity, transcriptional activator activity, and protein homodimerization activity. The expression of TNF-α and its receptor (sTNFR1 and sTNFR2) were significantly higher in CTEPH group, compared with control group. KEGG pathway analysis revealed enrichment in salmonella infection, pathways in cancer, osteoclast differentiation, and cytokine-cytokine receptor interaction. Hub genes in the PPI included FOS, suggesting an important role for this gene in vascular remodeling in CTEPH. Primary VSMCs derived from patients with CTEPH showed increased FOS expression and high proliferation and migration, which was attenuated by FOS inhibition. In control VSMCs, TNF-α treatment increased proliferation and migration, which FOS inhibition likewise attenuated. Conclusion: TNF-α drives CTEPH pathogenesis by promoting VSMC proliferation and migration via increased FOS expression. These results advance our understanding of the molecular mechanisms of vascular remodeling in CTEPH, and may inform the development of new therapeutic targets.
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Affiliation(s)
- Feng Wang
- Department of Cardiovascular Surgery, China-Japan Friendship Hospital, Beijing, China.,Graduate School of Peking Union Medical College, Beijing, China
| | - Congrui Sun
- Department of Cardiovascular Surgery, Peking University China-Japan Friendship School of Clinical Medicine, Beijing, China
| | - Xiaoshuo Lv
- Department of Cardiovascular Surgery, China-Japan Friendship Hospital, Beijing, China.,Graduate School of Peking Union Medical College, Beijing, China
| | - Mingsheng Sun
- Department of Cardiovascular Surgery, China-Japan Friendship Hospital, Beijing, China
| | - Chaozeng Si
- Department of Operations and Information Management, China-Japan Friendship Hospital, Beijing, China
| | - Yanan Zhen
- Department of Cardiovascular Surgery, China-Japan Friendship Hospital, Beijing, China
| | - Jing Guo
- Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, China
| | - Weiliang Sun
- Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, China
| | - Zhidong Ye
- Department of Cardiovascular Surgery, China-Japan Friendship Hospital, Beijing, China
| | - Jianyan Wen
- Department of Cardiovascular Surgery, China-Japan Friendship Hospital, Beijing, China.,Graduate School of Peking Union Medical College, Beijing, China
| | - Peng Liu
- Department of Cardiovascular Surgery, China-Japan Friendship Hospital, Beijing, China.,Graduate School of Peking Union Medical College, Beijing, China
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5
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Identification of feature autophagy-related genes in patients with acute myocardial infarction based on bioinformatics analyses. Biosci Rep 2021; 40:225582. [PMID: 32597946 PMCID: PMC7350888 DOI: 10.1042/bsr20200790] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 06/18/2020] [Accepted: 06/29/2020] [Indexed: 01/15/2023] Open
Abstract
Objective: To identify feature autophagy-related genes (ARGs) in patients with acute myocardial infarction (AMI) and further investigate their value in the diagnosis of AMI. Methods: Gene microarray expression data of AMI peripheral blood samples were downloaded from the GSE66360 dataset. The data were randomly classified into a discovery cohort (21 AMI patients and 22 healthy controls) and a validation cohort (28 AMI patients and 28 healthy controls). Differentially expressed ARGs between patients with AMI and healthy controls in the discovery cohort were identified using a statistical software package. Feature ARGs were screened based on support vector machine-recursive feature elimination (SVM-RFE), and an SVM classifier was constructed. Receiver operating characteristic (ROC) analysis was used to investigate the predictive value of the classifier, which was further verified in an independent external cohort. Results: A total of seven genes were identified based on SVM-RFE. The SVM classifier had an excellent discrimination ability in both the discovery cohort (area under the curve [AUC] = 0.968) and the validation cohort (AUC = 0.992), which was further confirmed in the GSE48060 dataset (AUC = 0.963). Furthermore, the SVM classifier showed outstanding discrimination between AMI patients with and without recurrent events in the independent external cohort (AUC = 0.992). The identified genes are mainly involved in the cellular response to autophagy, macroautophagy, apoptosis, and the FoxO signaling pathway. Conclusion: Our study identified feature ARGs and indicated their potential roles in AMI diagnosis to improve our understanding of the molecular mechanism underlying the occurrence of AMI.
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Yang D, Liu HQ, Yang Z, Fan D, Tang QZ. BMI1 in the heart: Novel functions beyond tumorigenesis. EBioMedicine 2021; 63:103193. [PMID: 33421944 PMCID: PMC7804972 DOI: 10.1016/j.ebiom.2020.103193] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 12/15/2020] [Accepted: 12/15/2020] [Indexed: 12/16/2022] Open
Abstract
The BMI1 protein, a member of the PRC1 family, is a well recognised transcriptional suppressor and has the capability of maintaining the self-renewal and proliferation of tissue-specific stem cells. Numerous studies have established that BMI1 is highly expressed in a variety of malignant cancers and serves as a key regulator in the tumorigenesis process. However, our understanding of BMI1 in terminally differentiated organs, such as the heart, is relatively nascent. Importantly, emerging data support that, beyond the tumor, BMI1 is also expressed in the heart tissue and indeed exerts profound effects in various cardiac pathological conditions. This review gives a summary of the novel functions of BMI1 in the heart, including BMI1-positive cardiac stem cells and BMI1-mediated signaling pathways, which are involved in the response to various cardiac pathological stimuli. Besides, we summarize the recent progress of BMI1 in some novel and rapidly developing cardiovascular therapies. Furtherly, we highlight the properties of BMI1, a therapeutic target proved effective in cancer treatment, as a promising target to alleviate cardiovascular diseases.
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Affiliation(s)
- Dan Yang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, PR China; Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan 430060, PR China
| | - Han-Qing Liu
- Department of Thyroid and Breast, Renmin Hospital of Wuhan University, Wuhan 430060, PR China
| | - Zheng Yang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, PR China; Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan 430060, PR China
| | - Di Fan
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, PR China; Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan 430060, PR China.
| | - Qi-Zhu Tang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan 430060, PR China; Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan 430060, PR China.
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Guo Z, Luo C, Zhu T, Li L, Zhang W. Elevated c-fos expression is correlated with phenotypic switching of human vascular smooth muscle cells derived from lower limb venous varicosities. J Vasc Surg Venous Lymphat Disord 2020; 9:242-251. [PMID: 32360331 DOI: 10.1016/j.jvsv.2020.03.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Accepted: 03/04/2020] [Indexed: 11/19/2022]
Abstract
BACKGROUND Lower limb venous varicosities (VVs) are clinically common; however, their molecular underpinnings are far from well elucidated. Previous studies have demonstrated that the phenotypic transition of vascular smooth muscle cells (VSMCs) plays a critical role in VV pathogenesis and that c-fos is upregulated in VSMCs from VVs. The present study investigated the histologic and cytologic changes in VVs and the correlation between c-fos upregulation and VSMC phenotypic switching. METHODS Thirty-four patients with VVs (VV group) and 13 patients undergoing coronary artery bypass using autologous great saphenous vein segments (normal vein [NV] group) were enrolled in the present study. The great saphenous veins of both groups were harvested for subsequent experiments. Hematoxylin and eosin staining was performed for vein morphologic analysis. Real-time quantitative polymerase chain reaction, immunohistochemistry, and Western blot assays were used to assess mRNA and protein expression of c-fos, α-smooth muscle actin (α-SMA), and osteopontin (OPN). Simple linear regression was used to evaluate the correlation between c-fos and OPN/α-SMA. Primary VSMCs were isolated from both groups and cultured in vitro. A cell counting kit-8 assay and scratch-wound assay were used to analyze the proliferation and migration abilities of the cells, respectively. RESULTS The mean age of the patients in the NV and VV groups was 61.4 ± 3.8 years and 59.5 ± 10.4 years, respectively. The vein cavities of the VV group were dilated, and the arrangement of the cells was disordered. The tunica media of the VV group was thicker than that of the NV group owing to the accumulation and proliferation of VSMCs. Significantly elevated mRNA levels of c-fos and OPN were observed in the VV group compared with the NV group, and a positive correlation was further demonstrated between the mRNA levels of c-fos and OPN/α-SMA (R2, 0.5524; P < .001). The VSMCs derived from the VV group were more numerous (as shown by the cell counting kit-8 assay) and had a significantly greater migration speed (as shown by the scratch-wound assay) than those derived from the NV group. Moreover, the protein expression of c-fos was significantly upregulated in VSMCs derived from the VV group, and this change was accompanied by a decrease in α-SMA and an increase in OPN expression. CONCLUSIONS Both mRNA and protein expression of c-fos were upregulated in VV specimens, and the phenotypic biomarkers (OPN/α-SMA) were altered concurrently. VSMCs derived from VVs showed increased proliferation and migration abilities. Upregulation of c-fos might play a role in the phenotypic switching of VSMCs and subsequently participate in the pathogenesis of VVs. CLINICAL RELEVANCE C-fos is an immediate early gene owing to the transient and rapid change in its expression in response to stimuli. It is involved in the regulation of cell proliferation, cell growth, and cell movement. In the present study, varicose vein specimens showed increased mRNA and protein expression of c-fos, accompanied by altered phenotypic biomarkers. The upregulation of the c-fos gene in smooth muscle cells cultured from varicose vein specimens might be associated with phenotypic switching and functional disturbance. These results could contribute to the exploration of the molecular mechanisms underlying the pathogenesis of varicose veins and the development of new therapeutic strategies.
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Affiliation(s)
- Zhenyu Guo
- Department of Vascular Surgery Fudan University, Shanghai, People's Republic of China
| | - Chentao Luo
- Department of Cardiac Surgery, Fudan University, Shanghai, People's Republic of China
| | - Ting Zhu
- Department of Vascular Surgery Fudan University, Shanghai, People's Republic of China
| | - Li Li
- Zhongshan Hospital and Department of Vascular Surgery, Huadong Hospital, Fudan University, Shanghai, People's Republic of China
| | - Wan Zhang
- Zhongshan Hospital and Department of Vascular Surgery, Huadong Hospital, Fudan University, Shanghai, People's Republic of China.
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Jin Z, Li J, Pi J, Chu Q, Wei W, Du Z, Qing L, Zhao X, Wu W. Geniposide alleviates atherosclerosis by regulating macrophage polarization via the FOS/MAPK signaling pathway. Biomed Pharmacother 2020; 125:110015. [PMID: 32187958 DOI: 10.1016/j.biopha.2020.110015] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 02/07/2020] [Accepted: 02/12/2020] [Indexed: 01/18/2023] Open
Abstract
OBJECTIVE To assess geniposide's effects in New Zealand rabbits with high-fat diet induced atherosclerosis and to explore the underpinning mechanisms. MATERIALS AND METHODS Aorta histological changes were evaluated by intravenous ultrasound (IVUS) and H&E staining. Lipid accumulation in the aortic was quantified by Oil Red O staining. Then, RNA sequencing (RNA-seq) was carried out for detecting differentially expressed genes in rabbit high-fat diet induced atherosclerosis. The levels of the cytokines CRP, IL-1β and IL-10 were determined by ELISA. Protein levels of iNOS and Arg-1 were assessed by Western blot and immunohistochemical staining. The mRNA expression levels of NR4A1, CD14, FOS, IL1A, iNOS and Arg-1 were detected by quantitative real-time PCR (qPCR). RESULTS Geniposide markedly reduced the degree of atherosclerotic lesions in aorta tissues. RNA-seq and qPCR demonstrated that NR4A1, CD14, FOS and IL1A mRNA amounts were overtly increased in New Zealand rabbits with high-fat diet induced atherosclerosis. Moreover, geniposide reduced iNOS (M1 phenotype) mRNA and protein amounts as well as IL-1β secretion, which were enhanced in New Zealand rabbits with high-fat diet induced atherosclerosis. Besides, Arg-1 (M2 phenotype) mRNA and protein amounts were significantly increased after geniposide treatment, as well as IL-10 secretion. CONCLUSION These findings suggest that geniposide could inhibit the progression of and stabilize atherosclerotic plaques in rabbits by suppressing M1 macrophage polarization and promoting M2 polarization through the FOS/MAPK signaling pathway.
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Affiliation(s)
- Zheng Jin
- Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Junlong Li
- Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Jianbin Pi
- Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Qingmin Chu
- Department of Cardiovascular Disease, First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Weichao Wei
- Shenzhen Traditional Chinese Medicine Hospital, Shenzhen, 518033, China
| | - Zhiyi Du
- Department of Cardiovascular Disease, First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Lijin Qing
- Department of Cardiovascular Disease, First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Xinjun Zhao
- Department of Cardiovascular Disease, First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Wei Wu
- Department of Cardiovascular Disease, First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510405, China.
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9
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Qin W, Zhang L, Li Z, Xiao D, Zhang Y, Yang H, Zhang H, Xu C, Zhang Y. Metoprolol protects against myocardial infarction by inhibiting miR-1 expression in rats. J Pharm Pharmacol 2019; 72:76-83. [PMID: 31702064 DOI: 10.1111/jphp.13192] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Accepted: 10/21/2019] [Indexed: 12/22/2022]
Abstract
OBJECTIVES Metoprolol is regarded as a first-line medicine for the treatment of myocardial infarction (MI). However, the underlying mechanisms remain largely unknown. This study aimed to investigate the involvement of miR-1 in the pharmacological function of metoprolol. METHODS In vivo MI model was established by left anterior descending coronary artery (LAD) ligation. The effects of metoprolol on infarct size and cardiac dysfunction were determined by triphenyltetrazolium chloride staining and cardiac echocardiography, respectively. In vitro oxidative stress cardiomyocyte model was established by H2 O2 treatment. The effect of metoprolol on the expression of miR-1 and connexin43 (Cx43) was quantified by real-time PCR and western blot, respectively. The intercellular communication was evaluated by lucifer yellow dye diffusion. KEY FINDINGS Left anterior descending ligation-induced MI injury was markedly attenuated by metoprolol as shown by reduced infarct size and better cardiac function. Metoprolol reversed the up-regulation of miR-1 and down-regulation of Cx43 in MI heart. Moreover, in H2 O2 -stimulated cardiomyocytes, overexpression of miR-1 abolished the effects of metoprolol on Cx43 up-regulation and increased intercellular communication, indicating that miR-1 may be a necessary mediator for the cardiac protective function of metoprolol. CONCLUSIONS Metoprolol relieves MI injury via suppression miR-1, thus increasing its target protein Cx43 and improving intercellular communication.
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Affiliation(s)
- Wei Qin
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), Harbin Medical University, Harbin, China.,School of Pharmacy, Jining Medical University, Rizhao, China
| | - Longyin Zhang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), Harbin Medical University, Harbin, China
| | - Zhange Li
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), Harbin Medical University, Harbin, China
| | - Dan Xiao
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), Harbin Medical University, Harbin, China
| | - Yue Zhang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), Harbin Medical University, Harbin, China
| | - Huan Yang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), Harbin Medical University, Harbin, China
| | - Haiying Zhang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), Harbin Medical University, Harbin, China
| | - Chaoqian Xu
- Mudanjiang Medical University, Mudanjiang, China
| | - Yong Zhang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), Harbin Medical University, Harbin, China.,Institute of Cardiovascular Research, Harbin Medical University, Harbin, China
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10
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Anti-Myocardial Infarction Effects of Radix Aconiti Lateralis Preparata Extracts and Their Influence on Small Molecules in the Heart Using Matrix-Assisted Laser Desorption/Ionization-Mass Spectrometry Imaging. Int J Mol Sci 2019; 20:ijms20194837. [PMID: 31569464 PMCID: PMC6801437 DOI: 10.3390/ijms20194837] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2019] [Revised: 09/13/2019] [Accepted: 09/27/2019] [Indexed: 12/29/2022] Open
Abstract
Radix Aconiti Lateralis Preparata (fuzi) is the processed product of Aconitum carmichaelii Debeaux tuber, and has great potential anti-myocardial infarction effects, including improving myocardial damage and energy metabolism in rats. However, the effects of Radix Aconiti Lateralis Preparata extracts in a rat model of myocardial infarction have not yet been fully illustrated. Herein, Radix Aconiti Lateral Preparata was used to prepare Radix Aconiti Lateralis Preparata extract (RAE), fuzi polysaccharides (FPS), and fuzi total alkaloid (FTA). Then, we aimed to compare the effects of RAE, FPS, and FTA in MI rats and further explore their influence on small molecules in the heart. We reported that Radix Aconiti Lateralis Preparata extract (RAE) and fuzi total alkaloid (FTA) significantly improved left ventricular function and structure, and reduced myocardial damage and infarct size in rats with myocardial infarction by the left anterior descending artery ligation. In contrast, fuzi polysaccharides (FPS) was less effective than RAE and FTA, indicating that alkaloids might play a major role in the treatment of myocardial infarction. Moreover, via matrix-assisted laser desorption/ionization–mass spectrometry imaging (MALDI–MSI), we further showed that RAE and FTA containing alkaloids as the main common components regulated myocardial energy metabolism-related molecules and phospholipids levels and distribution patterns against myocardial infarction. In particular, it was FTA, not RAE, that could also regulate potassium ions and glutamine to play a cardioprotective role in myocardial infarction, which revealed that an appropriate dose of alkaloids generated more obvious cardiotonic effects. These findings together suggested that Radix Aconiti Lateralis Preparata extracts containing an appropriate dose of alkaloids as its main pharmacological active components exerted protective effects against myocardial infarction by improving myocardial energy metabolism abnormalities and changing phospholipids levels and distribution patterns to stabilize the cardiomyocyte membrane structure. Thus, RAE and FTA extracted from Radix Aconiti Lateralis Preparata are potential candidates for the treatment of myocardial infarction.
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11
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Liao J, Wang J, Liu Y, Li J, Duan L. Transcriptome sequencing of lncRNA, miRNA, mRNA and interaction network constructing in coronary heart disease. BMC Med Genomics 2019; 12:124. [PMID: 31443660 PMCID: PMC6708182 DOI: 10.1186/s12920-019-0570-z] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 08/12/2019] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Non-coding RNA has been shown to participate in numerous biological and pathological processes and has attracted increasing attention in recent years. Recent studies have demonstrated that long non-coding RNA and micro RNA can interact through various mechanisms to regulate mRNA. Yet the gene-gene interaction has not been investigated in coronary heart disease (CHD). METHODS High throughput sequencing were used to identify differentially expressed (DE) lncRNA, miRNA, and mRNA profiles between CHD and healthy control. Gene Oncology (GO), KEGG enrichment analysis were performed. Gene-gene interaction network were constructed and pivotal genes were screened out. Lentivirus-induced shRNA infection and qRT-PCR were performed to validated the gene-gene interactions. RESULTS A total of 62 lncRNAs, 332 miRNAs and 366 mRNAs were differentially expressed between CHD and healthy control. GO and KEGG analysis show that immune related molecular mechanisms and biological processes play a role in CHD. The gene-gene interaction network were constructed and visualized based on Pearson correlation coefficients and starBase database. 6 miRNAs in the network were significantly correlated to left ventricular ejection fraction, total choleterol and homocysteine. 2 lncRNAs (CTA-384D8.35 and CTB-114C7.4 (refseq entry LOC100128059)), 1 miRNA (miR-4497), and 1 mRNA (NR4A1) were the pivotal genes. Lentivirus-induced shRNA infection and qRT-PCR had validated the pivotal gene-gene interactions. CONCLUSIONS These results have shown the potential of lncRNA, miRNA, and mRNA as clinical biomarkers and in elucidating pathological mechanisms of CHD from a transcriptomic perspective.
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Affiliation(s)
- Jiangquan Liao
- Department of Cardiology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- National Integrated Traditional and Western Medicine Center for Cardiovascular Disease, China-Japan Friendship Hospital, Beijing, China
| | - Jie Wang
- Department of Cardiology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China.
| | - Yongmei Liu
- Department of Cardiology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Jun Li
- Department of Cardiology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Lian Duan
- Department of Cardiology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
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12
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Zheng N, Zhang L, Wang B, Wang G, Liu J, Miao G, Zhao X, Liu C, Zhang L. Chlamydia pneumoniae infection promotes vascular smooth muscle cell migration via c-Fos/interleukin-17C signaling. Int J Med Microbiol 2019; 309:151340. [PMID: 31494039 DOI: 10.1016/j.ijmm.2019.151340] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 07/08/2019] [Accepted: 08/18/2019] [Indexed: 01/01/2023] Open
Abstract
Chlamydia pneumoniae (C. pneumoniae) infection is associated with the initiation and progression of atherosclerosis. The migration of vascular smooth muscle cell (VSMC) from the media to the intima is a key event in the development of atherosclerosis. Interleukin-17C (IL-17C) could enhance cell migration ability. The aim of our study is to investigate the role of IL-17C in C. pneumoniae infection-promoted VSMC migration, thereby possibly accelerating atherosclerosis. We firstly demonstrated that C. pneumoniae infection significantly increased IL-17C expression in VSMCs in the atherosclerotic lesion area from ApoE deficient mice. Our in vitro study further showed that IL-17C is required for C. pneumoniae infection-promoted VSMC migration, and its expression could be regulated by c-Fos through phosphorylating extracellular signal-regulated kinase (ERK). Unexpectedly, in the present study, we also found that IL-17C is critical for C. pneumoniae infection-induced c-Fos activation. c-Fos expression and activation induced by the exposure to recombinant IL-17C were markedly suppressed in the presence of the ERK inhibitor PD98059. These results suggest a possible positive feedback between c-Fos and IL-17C after C. pneumoniae infection. Taken together, our results indicate that C. pneumoniae infection promotes VSMC migration via c-Fos/IL-17C signaling.
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Affiliation(s)
- Ningbo Zheng
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China
| | - Lijun Zhang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China
| | - Beibei Wang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China
| | - Guangyan Wang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China
| | - Jingya Liu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China
| | - Guolin Miao
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China
| | - Xi Zhao
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China
| | - Changle Liu
- Department of Cardiology, The Second Hospital of Tianjin Medical University, Tianjin, 300211, China
| | - Lijun Zhang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin, 300070, China.
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13
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Jung M, Dodsworth M, Thum T. Inflammatory cells and their non-coding RNAs as targets for treating myocardial infarction. Basic Res Cardiol 2018; 114:4. [PMID: 30523422 PMCID: PMC6290728 DOI: 10.1007/s00395-018-0712-z] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2018] [Accepted: 11/29/2018] [Indexed: 12/22/2022]
Abstract
Myocardial infarction triggers infiltration of several types of immune cells that coordinate both innate and adaptive immune responses. These play a dual role in post-infarction cardiac remodeling by initiating and resolving inflammatory processes, which needs to occur in a timely and well-orchestrated way to ensure a reestablishment of normalized cardiac functions. Thus, therapeutic modulation of immune responses might have benefits for infarct patients. While such strategies have shown great potential in treating cancer, applications in the post-infarction context have been disappointing. One challenge has been the complexity and plasticity of immune cells and their functions in cardiac regulation and healing. The types appear in patterns that are temporally and spatially distinct, while influencing each other and the surrounding tissue. A comprehensive understanding of the immune cell repertoire and their regulatory functions following infarction is sorely needed. Processes of cardiac remodeling trigger additional genetic changes that may also play critical roles in the aftermath of cardiovascular disease. Some of these changes involve non-coding RNAs that play crucial roles in the regulation of immune cells and may, therefore, be of therapeutic interest. This review summarizes what is currently known about the functions of immune cells and non-coding RNAs during post-infarction wound healing. We address some of the challenges that remain and describe novel therapeutic approaches under development that are based on regulating immune responses through non-coding RNAs in the aftermath of the disease.
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Affiliation(s)
- Mira Jung
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Michael Dodsworth
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Thomas Thum
- Institute of Molecular and Translational Therapeutic Strategies (IMTTS), Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany.
- National Heart and Lung Institute, Imperial College London, London, UK.
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14
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La MK, Sedykh A, Fourches D, Muratov E, Tropsha A. Predicting Adverse Drug Effects from Literature- and Database-Mined Assertions. Drug Saf 2018; 41:1059-1072. [PMID: 29876834 PMCID: PMC6212308 DOI: 10.1007/s40264-018-0688-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
INTRODUCTION Given that adverse drug effects (ADEs) have led to post-market patient harm and subsequent drug withdrawal, failure of candidate agents in the drug development process, and other negative outcomes, it is essential to attempt to forecast ADEs and other relevant drug-target-effect relationships as early as possible. Current pharmacologic data sources, providing multiple complementary perspectives on the drug-target-effect paradigm, can be integrated to facilitate the inference of relationships between these entities. OBJECTIVE This study aims to identify both existing and unknown relationships between chemicals (C), protein targets (T), and ADEs (E) based on evidence in the literature. MATERIALS AND METHODS Cheminformatics and data mining approaches were employed to integrate and analyze publicly available clinical pharmacology data and literature assertions interrelating drugs, targets, and ADEs. Based on these assertions, a C-T-E relationship knowledge base was developed. Known pairwise relationships between chemicals, targets, and ADEs were collected from several pharmacological and biomedical data sources. These relationships were curated and integrated according to Swanson's paradigm to form C-T-E triangles. Missing C-E edges were then inferred as C-E relationships. RESULTS Unreported associations between drugs, targets, and ADEs were inferred, and inferences were prioritized as testable hypotheses. Several C-E inferences, including testosterone → myocardial infarction, were identified using inferences based on the literature sources published prior to confirmatory case reports. Timestamping approaches confirmed the predictive ability of this inference strategy on a larger scale. CONCLUSIONS The presented workflow, based on free-access databases and an association-based inference scheme, provided novel C-E relationships that have been validated post hoc in case reports. With refinement of prioritization schemes for the generated C-E inferences, this workflow may provide an effective computational method for the early detection of potential drug candidate ADEs that can be followed by targeted experimental investigations.
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Affiliation(s)
- Mary K La
- Division of Practice Advancement and Clinical Education, UNC Eshelman School of Pharmacy, 301 Pharmacy Lane, Chapel Hill, NC, 27599, USA
| | - Alexander Sedykh
- Laboratory for Molecular Modeling, Division of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, 301 Pharmacy Lane, Chapel Hill, NC, 27599, USA
- Sciome LLC, 2 Davis Drive, Research Triangle Park, NC, 27709, USA
| | - Denis Fourches
- Department of Chemistry, North Carolina State University, Raleigh, NC, 27695, USA
| | - Eugene Muratov
- Laboratory for Molecular Modeling, Division of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, 301 Pharmacy Lane, Chapel Hill, NC, 27599, USA
| | - Alexander Tropsha
- Laboratory for Molecular Modeling, Division of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, 301 Pharmacy Lane, Chapel Hill, NC, 27599, USA.
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15
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Jiang S, Zhang S. Differentiation of cardiomyocytes from amniotic fluid‑derived mesenchymal stem cells by combined induction with transforming growth factor β1 and 5‑azacytidine. Mol Med Rep 2017; 16:5887-5893. [PMID: 28849231 PMCID: PMC5865765 DOI: 10.3892/mmr.2017.7373] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Accepted: 02/09/2017] [Indexed: 11/17/2022] Open
Abstract
As a novel type of seed cell, amniotic fluid-derived mesenchymal stem cells (AFMSCs) are promising for the regeneration of myocardial cells. A focus of cardiovascular regenerative medicine is to improve the efficiency of AFMSC differentiation. The present study replaced the traditional method of AFMSC differentiation with a combined induction method, in order to improve the efficiency of directional differentiation. AFMSCs were obtained from rabbit amniotic fluid samples, and western blot analysis was performed to analyze the expression of octamer-binding transcription factor 4 (OCT4), and tumorigenicity experiments were conducted. AFMSCs were divided into the following 4 groups: Induction with transforming growth factor β1 (TGFβ1); induction with 5-azacytidine (5Aza); induction with TGFβ1 and 5Aza combined; and untreated controls. Reverse transcription-quantitative polymerase chain reaction was performed to analyze the expression of cardiac-specific GATA binding protein 4 (GATA4), and immunofluorescence was employed to analyze the expression of cardiac troponin T (cTnT). In addition, western blotting was performed to analyze the expression of connexin 43, and transmission electron microscopy was used to observe the ultrastructure of the differentiated cells. AFMSCs exhibited positive OCT4 expression and were not observed to induce tumor development in nude mice. The expression levels of GATA4, cTnT, and connexin 43 in the combined induction group were markedly higher when compared with the remaining groups. Transmission electron microscopy analysis revealed that differentiated cells exhibited myocardial cell characteristics. In conclusion, AFMSCs are multipotent, non-tumorigenic cells that are capable of differentiating into cardiomyocyte-like cells. This combined induction method may improve the efficiency of directed differentiation.
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Affiliation(s)
- Shan Jiang
- Cardiovascular Department, Xin Hua Hospital, Affiliated Hospital of Shanghai Jiaotong University, Shanghai 200092, P.R. China
| | - Song Zhang
- Cardiovascular Department, Xin Hua Hospital, Affiliated Hospital of Shanghai Jiaotong University, Shanghai 200092, P.R. China
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16
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Wang Y, Li Y, Song L, Li Y, Jiang S, Zhang S. The transplantation of Akt-overexpressing amniotic fluid-derived mesenchymal stem cells protects the heart against ischemia-reperfusion injury in rabbits. Mol Med Rep 2016; 14:234-42. [PMID: 27151366 PMCID: PMC4918560 DOI: 10.3892/mmr.2016.5212] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Accepted: 04/22/2016] [Indexed: 12/24/2022] Open
Abstract
Amniotic fluid-derived mesenchymal stem cells (AFMSCs) are an attractive cell source for applications in regenerative medicine, due to characteristics such as proliferative capacity and multipotency. In addition, Akt, a serine‑threonine kinase, maintains stem cells by promoting viability and proliferation. Whether the transplantation of Akt-overexpressing AFMSCs protects the heart against ischemia‑reperfusion (I/R) injury has yet to be elucidated. Accordingly, the Akt gene was overexpressed in AFMSCs using lentiviral transduction, and Akt‑AFMSCs were transplanted into the ischemic myocardium of rabbits prior to reperfusion. Any protective effects resulting from this procedure were subsequently sought after three weeks later. A histological examination revealed that there was a decrease in intramyocardial inflammation and ultrastructural damage, and an increase in capillary density and in the levels of GATA binding protein 4, connexin 43 and cardiac troponin T in the Akt‑AFMSC group compared with the control group. A significant decrease in cardiomyocyte apoptosis, accompanying an increase in phosphorylated Akt and B‑cell lymphoma 2 (Bcl-2) and a decrease in caspase‑3, was also observed. Furthermore, the left ventricular function was markedly augmented in the Akt‑AFMSC group compared with the control group. These observations suggested that the protective effect of AFMSCs may be due to the delivery of secreted cytokines, promotion of neoangiogenesis, prevention of cardiomyocyte apoptosis, transdifferentiation into cardiomyocytes and promotion of the viability of AFMSCs, which are assisted by Akt gene modification. Taken together, the results of the present study have indicated that transplantation of Akt-AFMSCs is able to alleviate myocardial I/R injury and improve cardiac function.
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Affiliation(s)
- Yan Wang
- Department of Geriatrics, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200092, P.R. China
| | - Yigang Li
- Department of Cardiovascular Diseases, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200092, P.R. China
| | - Lei Song
- Department of Cardiovascular Diseases, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200092, P.R. China
| | - Yanyan Li
- Department of Cardiovascular Diseases, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200092, P.R. China
| | - Shan Jiang
- Department of Cardiovascular Diseases, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200092, P.R. China
| | - Song Zhang
- Department of Cardiovascular Diseases, Xinhua Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200092, P.R. China
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Parseghian S, Onstead-Haas LM, Wong NCW, Mooradian AD, Haas MJ. Inhibition of apolipoprotein A-I expression by TNF-alpha in HepG2 cells: requirement for c-jun. J Cell Biochem 2014; 115:253-60. [PMID: 24038215 DOI: 10.1002/jcb.24656] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2013] [Accepted: 08/14/2013] [Indexed: 01/26/2023]
Abstract
Tumor necrosis factor alpha (TNF α) signals in part through the mitogen activated protein (MAP) kinase c-jun-N-terminal kinase (JNK). Activation of JNK has been shown to promote insulin resistance and dyslipidemia, including reductions in plasma high-density lipoprotein (HDL) and apolipoprotein A-I (apo A-I). To examine how TNF α-mediated JNK activation inhibits hepatic apo A-I production, the effects of c-jun activation on apo A-I gene expression were examined in HepG2 cells. Apo A-I gene expression and promoter activity were measured by Northern and Western blotting and transient transfection. Transient transfection and siRNA were used to specifically over-express or knockout c-jun, c-jun-N-terminal kinase-1 and -2 (JNK1 and JNK2, respectively) and mitogen-activated protein kinase-4 (MKK4). TNF α-treatment of HepG2 cells induced rapid phosphorylation of c-jun on serine 63. In cells treated with phorbol-12-myristate-13-acetate (PMA), apo A-I gene promoter activity was inhibited and apo A-I mRNA content and apo A-I protein secretion decreased. Likewise, over-expression of JNK1 and JNK2 inhibited apo A-I promoter activity. Over-expression of constitutively active MKK4, an upstream protein kinase that directly activates JNK, also inhibited apo A-I promoter activity, while over-expression of a dominant-negative MKK4 de-repressed apo A-I promoter activity in TNF α-treated cells. Inhibition of c-jun synthesis using siRNA but not a control siRNA prevented TNF α-mediated inhibition of apo A-I. These results suggest that the MKK4/JNK/c-jun signaling pathway mediates TNF α-dependent inhibition of apo A-I synthesis.
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Affiliation(s)
- Shant Parseghian
- Division of Endocrinology, Diabetes, and Metabolism, Department of Internal Medicine, Saint Louis University, Saint Louis, Missouri, 63104
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