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Groza Y, Lacina L, Kuchař M, Rašková Kafková L, Zachová K, Janoušková O, Osička R, Černý J, Petroková H, Mierzwicka JM, Panova N, Kosztyu P, Sloupenská K, Malý J, Škarda J, Raška M, Smetana K, Malý P. Small protein blockers of human IL-6 receptor alpha inhibit proliferation and migration of cancer cells. Cell Commun Signal 2024; 22:261. [PMID: 38715108 PMCID: PMC11075285 DOI: 10.1186/s12964-024-01630-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 04/22/2024] [Indexed: 05/12/2024] Open
Abstract
BACKGROUND Interleukin-6 (IL-6) is a multifunctional cytokine that controls the immune response, and its role has been described in the development of autoimmune diseases. Signaling via its cognate IL-6 receptor (IL-6R) complex is critical in tumor progression and, therefore, IL-6R represents an important therapeutic target. METHODS An albumin-binding domain-derived highly complex combinatorial library was used to select IL-6R alpha (IL-6Rα)-targeted small protein binders using ribosome display. Large-scale screening of bacterial lysates of individual clones was performed using ELISA, and their IL-6Rα blocking potential was verified by competition ELISA. The binding of proteins to cells was monitored by flow cytometry and confocal microscopy on HEK293T-transfected cells, and inhibition of signaling function was examined using HEK-Blue IL-6 reporter cells. Protein binding kinetics to living cells was measured by LigandTracer, cell proliferation and toxicity by iCELLigence and Incucyte, cell migration by the scratch wound healing assay, and prediction of binding poses using molecular modeling by docking. RESULTS We demonstrated a collection of protein variants called NEF ligands, selected from an albumin-binding domain scaffold-derived combinatorial library, and showed their binding specificity to human IL-6Rα and antagonistic effect in HEK-Blue IL-6 reporter cells. The three most promising NEF108, NEF163, and NEF172 variants inhibited cell proliferation of malignant melanoma (G361 and A2058) and pancreatic (PaTu and MiaPaCa) cancer cells, and suppressed migration of malignant melanoma (A2058), pancreatic carcinoma (PaTu), and glioblastoma (GAMG) cells in vitro. The NEF binders also recognized maturation-induced IL-6Rα expression and interfered with IL-6-induced differentiation in primary human B cells. CONCLUSION We report on the generation of small protein blockers of human IL-6Rα using directed evolution. NEF proteins represent a promising class of non-toxic anti-tumor agents with migrastatic potential.
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Affiliation(s)
- Yaroslava Groza
- Laboratory of Ligand Engineering, Institute of Biotechnology of the Czech Academy of Sciences, BIOCEV Research Center, Prumyslova 595, Vestec, 252 50, Czech Republic
| | - Lukáš Lacina
- Institute of Anatomy, 1st Faculty of Medicine, Charles University, U Nemocnice 3, Prague 2, 12800, Czech Republic.
- Department of Dermatovenerology, 1st Faculty of Medicine, Charles University, U Nemocnice 2, Prague 2, 12000, Czech Republic.
| | - Milan Kuchař
- Laboratory of Ligand Engineering, Institute of Biotechnology of the Czech Academy of Sciences, BIOCEV Research Center, Prumyslova 595, Vestec, 252 50, Czech Republic
| | - Leona Rašková Kafková
- Department of Immunology, Faculty of Medicine and Dentistry, Palacky University Olomouc and University Hospital Olomouc, Hněvotínská 3, Olomouc, 779 00, Czech Republic
| | - Kateřina Zachová
- Department of Immunology, Faculty of Medicine and Dentistry, Palacky University Olomouc and University Hospital Olomouc, Hněvotínská 3, Olomouc, 779 00, Czech Republic
| | - Olga Janoušková
- Centre of Nanomaterials and Biotechnologies, University of J. E. Purkyně in Ústí nad Labem, Pasteurova 3632/15, Ústí nad Labem, 400 96, Czech Republic
| | - Radim Osička
- Laboratory of Molecular Biology of Bacterial Pathogens, Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, Prague, 14220, Czech Republic
| | - Jiří Černý
- Laboratory of Structural Bioinformatics of Proteins, Institute of Biotechnology of the Czech Academy of Sciences, BIOCEV Research Center, Prumyslova 595, Vestec, 252 50, Czech Republic
| | - Hana Petroková
- Laboratory of Ligand Engineering, Institute of Biotechnology of the Czech Academy of Sciences, BIOCEV Research Center, Prumyslova 595, Vestec, 252 50, Czech Republic
| | - Joanna Maria Mierzwicka
- Laboratory of Ligand Engineering, Institute of Biotechnology of the Czech Academy of Sciences, BIOCEV Research Center, Prumyslova 595, Vestec, 252 50, Czech Republic
| | - Natalya Panova
- Laboratory of Ligand Engineering, Institute of Biotechnology of the Czech Academy of Sciences, BIOCEV Research Center, Prumyslova 595, Vestec, 252 50, Czech Republic
| | - Petr Kosztyu
- Department of Immunology, Faculty of Medicine and Dentistry, Palacky University Olomouc and University Hospital Olomouc, Hněvotínská 3, Olomouc, 779 00, Czech Republic
| | - Kristýna Sloupenská
- Department of Immunology, Faculty of Medicine and Dentistry, Palacky University Olomouc and University Hospital Olomouc, Hněvotínská 3, Olomouc, 779 00, Czech Republic
| | - Jan Malý
- Centre of Nanomaterials and Biotechnologies, University of J. E. Purkyně in Ústí nad Labem, Pasteurova 3632/15, Ústí nad Labem, 400 96, Czech Republic
| | - Jozef Škarda
- Department of Clinical and Molecular Pathology, Faculty of Medicine and Dentistry, Palacky University Olomouc, Hněvotínská 3, Olomouc, 779 00, Czech Republic
| | - Milan Raška
- Department of Immunology, Faculty of Medicine and Dentistry, Palacky University Olomouc and University Hospital Olomouc, Hněvotínská 3, Olomouc, 779 00, Czech Republic
| | - Karel Smetana
- Institute of Anatomy, 1st Faculty of Medicine, Charles University, U Nemocnice 3, Prague 2, 12800, Czech Republic
| | - Petr Malý
- Laboratory of Ligand Engineering, Institute of Biotechnology of the Czech Academy of Sciences, BIOCEV Research Center, Prumyslova 595, Vestec, 252 50, Czech Republic.
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Henry A, Mauperin M, Devy J, Dedieu S, Chazee L, Hachet C, Terryn C, Duca L, Martiny L, Devarenne-Charpentier E, Btaouri HE. The endocytic receptor protein LRP-1 modulate P-glycoprotein mediated drug resistance in MCF-7 cells. PLoS One 2023; 18:e0285834. [PMID: 37768946 PMCID: PMC10538702 DOI: 10.1371/journal.pone.0285834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Accepted: 05/02/2023] [Indexed: 09/30/2023] Open
Abstract
Multidrug resistance (MDR) is a major obstacle to successful cancer chemotherapy. A typical form of MDR is due to the overexpression of membrane transport proteins., such as Glycoprotein-P (P-gp), resulting in an increased drug efflux preventing drug cytotoxicity. P-gp is mainly localized on the plasma membrane; however, it can also be endocytosed resulting in the trafficking of P-gp in endoplasmic reticulum, Golgi, endosomes, and lysosomes. The lysosomal P-gp has been found to be capable of transporting and sequestering P-gp substrates (e.g., Doxorubicin (Dox)) into lysosomes to protect cells against cytotoxic drugs. Many translational studies have shown that low-density lipoprotein receptor-related protein-1 (LRP-1) is involved in endocytosis and regulation of signalling pathways. LRP-1 mediates the endocytosis of a diverse set of extracellular ligands that play important roles in tumor progression. Here, we investigated the involvement of LRP-1 in P-gp expression and subcellular redistribution from the cell surface to the lysosomal membrane by endocytosis and its potential implication in P-gp-mediated multidrug resistance in MCF-7 cells. Our results showed that MCF-7 resistant cells (MCF-7R) overexpressed the P-gp, LRP-1 and LAMP-1 and were 11.66-fold resistant to Dox. Our study also revealed that in MCF-7R cells, lysosomes were predominantly high density compared to sensitized cells and P-gp was localized in the plasma membrane and lysosomes. LRP-1 blockade reduced lysosomes density and level of LAMP-1 and P-gp. It also affected the subcellular distribution of P-gp. Under these conditions, we restored Dox nuclear uptake and ERK 1/2 activation thus leading to MCF-7R cell sensitization to Dox. Our data suggest that LRP-1 is able to modulate the P-gp expression and subcellular redistribution by endocytosis and to potentiate the P-gp-acquired Dox resistance.
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Affiliation(s)
- Aubery Henry
- UMR-CNRS 7369 Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), UFR SEN, URCA, Reims cedex, France
| | - Marine Mauperin
- UMR-CNRS 7369 Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), UFR SEN, URCA, Reims cedex, France
| | - Jerome Devy
- UMR-CNRS 7369 Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), UFR SEN, URCA, Reims cedex, France
| | - Stephane Dedieu
- UMR-CNRS 7369 Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), UFR SEN, URCA, Reims cedex, France
| | - Lise Chazee
- UMR-CNRS 7369 Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), UFR SEN, URCA, Reims cedex, France
| | - Cathy Hachet
- UMR-CNRS 7369 Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), UFR SEN, URCA, Reims cedex, France
| | - Christine Terryn
- Technical Platform for Cellular and Tissue Imaging (PICT), UFR Pharmacie, URCA, Reims, France
| | - Laurent Duca
- UMR-CNRS 7369 Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), UFR SEN, URCA, Reims cedex, France
| | - Laurent Martiny
- UMR-CNRS 7369 Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), UFR SEN, URCA, Reims cedex, France
| | | | - Hassan El Btaouri
- UMR-CNRS 7369 Matrice Extracellulaire et Dynamique Cellulaire (MEDyC), UFR SEN, URCA, Reims cedex, France
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Chen Y, Zhou J, Xu S, Nie J. Role of Interleukin-6 Family Cytokines in Organ Fibrosis. KIDNEY DISEASES (BASEL, SWITZERLAND) 2023; 9:239-253. [PMID: 37900004 PMCID: PMC10601952 DOI: 10.1159/000530288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 03/02/2023] [Indexed: 10/31/2023]
Abstract
Background Organ fibrosis remains an important cause of high incidence rate and mortality worldwide. The prominent role of interleukin-6 (IL-6) family members represented by IL-6 in inflammation has been extensively studied, and drugs targeting IL-6 have been used clinically. Because of the close relationship between inflammation and fibrosis, researches on the role of IL-6 family members in organ fibrosis are also gradually emerging. Summary In this review, we systematically reviewed the role of IL-6 family members in fibrosis and their possible mechanisms. We listed the role of IL-6 family members in organ fibrosis and drew two diagrams to illustrate the downstream signal transductions of IL-6 family members. We also summarized the effect of some IL-6 family members' antagonists in a table. Key Messages Fibrosis contributes to organ structure damage, organ dysfunction, and eventually organ failure. Although IL-6 family cytokines have similar downstream signal pathways, different members play various roles in an organ-specific manner which might be partly due to their different target cell populations. The pathogenic role of individual member in various diseases needs to be deciphered carefully.
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Affiliation(s)
- Ying Chen
- Department of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jiaxin Zhou
- Department of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Shihui Xu
- Department of Allergy, Immunology and Rheumatology, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Jing Nie
- Department of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
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Liu Y, Zheng P, Jiao T, Zhang M, Wu Y, Zhang X, Wang S, Zhao Z. Paiteling induces apoptosis of cervical cancer cells by down-regulation of the E6/E7-Pi3k/Akt pathway: A network pharmacology. JOURNAL OF ETHNOPHARMACOLOGY 2023; 305:116062. [PMID: 36535331 DOI: 10.1016/j.jep.2022.116062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 11/29/2022] [Accepted: 12/14/2022] [Indexed: 06/17/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Human papillomavirus (HPV) infection is considered to be the main pathogen causing intraepithelial neoplasia. Paiteling (PTL) has been used to treat intraepithelial neoplasia caused by human papillomavirus (HPV) infection for more than 20 years in China, but its specific mechanism of action is not very clear, and further research is still needed. OBJECTIVE This study designed a comprehensive strategy to study the pharmacological mechanism of paiteling in regulating cervical cancer cell apoptosis by integrating LC-MS/MS, network pharmacology and pharmacological experiments. METHODS We used liquid chromatography-tandem mass spectrometry to detect the active substances in PTL and performed protein-protein interaction analysis on the intersection of the targets of these key compounds and the targets of intraepithelial neoplasia. Additionally, by using Gene Ontology and the Kyoto Encyclopedia of Genes and Genomes (KEGG), the potential pathway of PTL against HPV-induced intraepithelial neoplasia was predicted. Finally, we used HeLa and Ect1/E6E7 cells for experimental verification. RESULTS The protein-protein interaction network predicted that AKT1, TP53, MYC, STAT3, MTOR, and MAPK were pivotal targets for PTL to inhibit epithelial neoplasia. KEGG enrichment analysis showed that the Pi3k/Akt pathway and HPV infection had scientific significance. Compared to the control group, after PTL diluent stimulated HeLa and Ect1/E6E7 cells for 24 h, cell viability, migration, and invasion capabilities were significantly reduced, and cell apoptosis was significantly increased, conforming to a dose-effect relationship and time-effect relationship. PCR, cellular immunohistochemistry, and western blot experiments showed that PTL reduced the expression of E6, Pi3k, E7, Akt, Bcl-xl, while increasing the expression of Bad in HeLa and Ect1/E6E7 cells. CONCLUSION PTL can induce cervical cancer cell apoptosis by inhibiting the E6/E7-Pi3k/Akt signaling pathway. It may provide an effective alternative strategy of traditional Chinese medicine for the treatment of epithelial neoplasia caused by HPV infection.
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Affiliation(s)
- Yunhua Liu
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Pengfei Zheng
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Tingting Jiao
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Mengmeng Zhang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Yingjie Wu
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Xinjiang Zhang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Shuyue Wang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Zongjiang Zhao
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
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Groza Y, Jemelkova J, Kafkova LR, Maly P, Raska M. IL-6 and its role in IgA nephropathy development. Cytokine Growth Factor Rev 2022; 66:1-14. [PMID: 35527168 DOI: 10.1016/j.cytogfr.2022.04.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Accepted: 04/05/2022] [Indexed: 02/07/2023]
Abstract
IL-6 is considered one of the well characterized cytokines exhibiting homeostatic, pro- and anti-inflammatory activities, depending on the receptor variant and the induced intracellular cis- or trans-signaling responses. IL-6-activated pathways are involved in the regulation of cell proliferation, survival, differentiation, and cell metabolism changes. Deviations in IL-6 levels or abnormal response to IL-6 signaling are associated with several autoimmune diseases including IgA nephropathy (IgAN), one of most frequent primary glomerulonephritis worldwide. IgAN is associated with increased plasma concentration of IL-6 and increased plasma concentration of aberrantly galactosylated IgA1 immunoglobulin (Gd-IgA1). Gd-IgA1 is specifically recognized by autoantibodies, leading to the formation of circulating immune complexes (CIC) with nephritogenic potential, since CIC deposited in the glomerular mesangium induce mesangial cells proliferation and glomerular injury. Infection of the upper respiratory or digestive tract enhances IL-6 production and in IgAN patients is often followed by the macroscopic hematuria. This review recapitulates general aspects of IL-6 signaling and summarizes experimental evidences about IL-6 involvement in the etiopathogenesis of IgA nephropathy through the production of Gd-IgA1 and regulation of mesangial cell proliferation.
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Affiliation(s)
- Yaroslava Groza
- Laboratory of Ligand Engineering, Institute of Biotechnology of the Czech Academy of Sciences, BIOCEV Research Center, Prumyslova 595, Vestec 252 50, Czech Republic
| | - Jana Jemelkova
- Department of Immunology, Faculty of Medicine and Dentistry, Palacky University Olomouc, Hnevotinska 3, Olomouc 779 00, Czech Republic
| | - Leona Raskova Kafkova
- Department of Immunology, Faculty of Medicine and Dentistry, Palacky University Olomouc, Hnevotinska 3, Olomouc 779 00, Czech Republic.
| | - Petr Maly
- Laboratory of Ligand Engineering, Institute of Biotechnology of the Czech Academy of Sciences, BIOCEV Research Center, Prumyslova 595, Vestec 252 50, Czech Republic
| | - Milan Raska
- Department of Immunology, Faculty of Medicine and Dentistry, Palacky University Olomouc, Hnevotinska 3, Olomouc 779 00, Czech Republic.
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Yeh JN, Sung PH, Chiang JY, Sheu JJ, Huang CR, Chu YC, Chua S, Yip HK. Early treatment with combination of SS31 and entresto effectively preserved the heart function in doxorubicin-induced dilated cardiomyopathic rat. Biomed Pharmacother 2021; 141:111886. [PMID: 34426177 DOI: 10.1016/j.biopha.2021.111886] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 06/17/2021] [Accepted: 06/28/2021] [Indexed: 10/20/2022] Open
Abstract
BACKGROUND This study tested the hypothesis that early administration of SS31 and entresto (En) was superior to either one alone on preserving the heart function in setting of dilated cardiomyopathy (DCM) induced by doxorubicin (Dox) [accumulated dosage of 12.5 mg/kg/administered by intraperitoneal (IP) at 4 separated time points within 20 days] in rat. METHODS AND RESULTS Adult-male SD rats (n = 40) were equally categorized into groups 1 (sham-control), 2 (DCM), 3 (DCM + SS31/0.7 mg/kg/day/IP, since day-14 after DCM induction to day-60), 4 [DCM + En (30 mg/kg/day/orally since day-14 after DCM induction to day-60)] and 5 (DCM + combined SS31-En), and animals were euthanized by day 60. By day 60, left-ventricular ejection-fraction (LVEF) was highest in group 1, lowest in group 2 and significantly higher in group 5 than in groups 3 and 4 (all p < 0.0001), but it showed no difference between groups 3/4. The microscopic study showed that the fibrosis area/cardiomyocyte size and DNA-damaged (γ-H2AX+)/inflammatory (CD14+//CD68+) markers, and flow analysis of inflammatory (Ly6G+/MPO+/CD11b/c+) and early/late apoptosis (AN-V+/PI-//AN-V+/PI+) cells exhibited an opposite pattern of LVEF among the five groups (all p < 0.0001). The protein expressions of inflammatory upstream (TLR2/TLR4/MyD88/Mal/ TRAF6/IKK-α/IKK-ß) and downstream (p-NF-κb/TNF-α/IL-1ß/MMP-9), oxidative-stress/mitochondrial-damaged (NOX-1/NOX-2/cytosolic cytochrome-C/cyclophilin-D/DRP1) and autophagic/apoptotic (ratio of LC3B-II/LC3B-I and mitochondrial-Bax/caspase3/9) signaling pathways also exhibited an opposite pattern of LVEF among the five groups (all p < 0.0001). CONCLUSION Combined SS31-En therapy was superior to either one alone on protecting the heart structural and functional integrities against Dox-induced DCM damage.
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Affiliation(s)
- Jui-Ning Yeh
- Department of Cardiology, The First Affiliated Hospital, Jinan University, Guangzhou 510630, China
| | - Pei-Hsun Sung
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan; Center for Shockwave Medicine and Tissue Engineering, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - John Y Chiang
- Department of Computer Science and Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan; Department of Healthcare Administration and Medical Informatics, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Jiunn-Jye Sheu
- Center for Shockwave Medicine and Tissue Engineering, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan; Division of Thoracic and Cardiovascular Surgery, Department of Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan; Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Chi-Ruei Huang
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan; Center for Shockwave Medicine and Tissue Engineering, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Yi-Ching Chu
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan; Center for Shockwave Medicine and Tissue Engineering, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Sarah Chua
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan.
| | - Hon-Kan Yip
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan; Center for Shockwave Medicine and Tissue Engineering, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan; Institute for Translational Research in Biomedicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan; Department of Nursing, Asia University, Taichung, Taiwan; Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan; Division of Cardiology, Department of Internal Medicine, Xiamen Chang Gung Hospital, Xiamen, Fujian, China.
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Ramani S, Park S. HSP27 role in cardioprotection by modulating chemotherapeutic doxorubicin-induced cell death. J Mol Med (Berl) 2021; 99:771-784. [PMID: 33728476 DOI: 10.1007/s00109-021-02048-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 02/05/2021] [Accepted: 02/09/2021] [Indexed: 01/19/2023]
Abstract
The common phenomenon expected from any anti-cancer drug in use is to kill the cancer cells without any side effects to non-malignant cells. Doxorubicin is an anthracycline derivative anti-cancer drug active over different types of cancers with anti-cancer activity but attributed to unintended cytotoxicity and genotoxicity triggering mitogenic signals inducing apoptosis. Administration of doxorubicin tends to both acute and chronic toxicity resulting in cardiomyopathy (left ventricular dysfunction) and congestive heart failure (CHF). Cardiotoxicity is prevented through administration of different cardioprotectants along with the drug. This review elaborates on mechanism of drug-mediated cardiotoxicity and attenuation principle by different cardioprotectants, with a focus on Hsp27 as cardioprotectant by prevention of drug-induced oxidative stress, cell survival pathways with suppression of intrinsic cell death. In conclusion, Hsp27 may offer an exciting/alternating cardioprotectant, with a wider study being need of the hour, specifically on primary cell line and animal models in conforming its cardioprotectant behaviour.
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Affiliation(s)
- Sivasubramanian Ramani
- Department of Food Science and Biotechnology, Sejong University, 209 Neungdong-ro, Seoul, 05006, South Korea
| | - Sungkwon Park
- Department of Food Science and Biotechnology, Sejong University, 209 Neungdong-ro, Seoul, 05006, South Korea.
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Protective Role of Polyphenols in Heart Failure: Molecular Targets and Cellular Mechanisms Underlying Their Therapeutic Potential. Int J Mol Sci 2021; 22:ijms22041668. [PMID: 33562294 PMCID: PMC7914665 DOI: 10.3390/ijms22041668] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 02/01/2021] [Accepted: 02/04/2021] [Indexed: 12/11/2022] Open
Abstract
Heart failure (HF) is a leading cause of death in the United States, with a 5-year mortality rate of 50% despite modern pharmacological therapies. Plant-based diets are comprised of a diverse polyphenol profile, which lends to their association with reduced cardiovascular disease risk. Whether a polyphenol-rich diet can slow the progression of or reverse HF in humans is not known. To date, in vitro and in vivo studies have reported on the protective role of polyphenols in HF. In this review, we will discuss the major mechanisms by which polyphenols mitigate HF in vitro and in vivo, including (1) reduced cardiac inflammation and oxidative stress, (2) reduced mitochondrial dysfunction, (3) improved Ca2+ homeostasis, (4) increased survival signaling, and (5) increased sirtuin 1 activity.
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In vitro maturation in the presence of Leukemia Inhibitory Factor modulates gene and miRNA expression in bovine oocytes and embryos. Sci Rep 2020; 10:17777. [PMID: 33082423 PMCID: PMC7575586 DOI: 10.1038/s41598-020-74961-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 09/23/2020] [Indexed: 02/06/2023] Open
Abstract
Members of the interleukin-6 (IL-6) family of cytokines are important for reproductive function that are mediated through changes in gene and miRNA expression. Herein, we characterized the expression of miR-21, miR-155, miR-34c and miR-146a in bovine oocytes and cumulus cells during in vitro maturation (IVM) with leukemia inhibitory factor (LIF), IL-6 and IL-11 or unsupplemented controls. LIF-exposed COCs showed higher expression of miR-21 and miR-155 in oocytes, whereas miR-146a expression was increased in oocytes matured with IL-6 and IL-11. In cumulus cells, miR-155 expression was elevated by all treatments while only LIF increased miR-21 expression. Based on these results, we next examined how LIF exposure during IVM affected oocyte competence, through IVF and the expression of specific genes in GV- and MII-oocytes, in 2- and 8-cell embryos, and in Day 8-blastocysts. LIF supplementation did not affect cleavage rate, blastocyst yield or several other developmental parameters, but did increase hatching rate. LIF suppressed DPPA3, ZAR1 and NPM2 expression in 2 cell- and/or 8-cell embryos. LIF increased the expression of KAT2A and HSPA1A in MII-oocytes, and that of HDAC1, KAT2A and HSP90AA1 and the BAX:BCL2L1 ratio in 2-cell embryos. In contrast, HDAC1, KAT2A and HSP90AA1 expression and BAX:BCL2L1 ratio was lower in 8-cell embryos derived from LIF oocytes. IVM with LIF also increased the expression of DNMT3A, HSPA1A and HSP90AA1 in blastocysts. In conclusion, supplementation with LIF during IVM was consistently associated with changes in the relative abundance of transcripts in mature bovine oocytes and in specific embryo developmental stages.
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Zaobidna E, Kiezun M, Dobrzyn K, Szeszko K, Rytelewska E, Kisielewska K, Gudelska M, Bors K, Kopij G, Szymanska K, Kaminska B, Kaminski T, Smolinska N. The influence of orexin B on the transcriptome profile of porcine myometrial explants during early implantation. Theriogenology 2020; 156:205-213. [PMID: 32755720 DOI: 10.1016/j.theriogenology.2020.07.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 07/02/2020] [Accepted: 07/02/2020] [Indexed: 01/04/2023]
Abstract
This study aimed to determine the effect of orexin B (OXB) on the global expression pattern and the relationships among differentially expressed genes (DE-genes) in the transcriptome of myometrial explants during the early implantation period in the pig (day 15 of pregnancy). The changes in the transcriptome profile of the porcine myometrium were investigated using the Porcine (V2) Two-colour Gene Expression Microarray, 4 × 44. An analysis of the data from the microarray experiment revealed that 1540 DE-genes were affected by OXB, of which 1135 exhibited fold changes (FC) greater than 1.2 (P < 0.05). Among these, 576 genes were up-regulated and 559 genes were down-regulated. Among the affected biological processes in the myometrial tissue, 76 were enhanced and 31 were suppressed. Furthermore, the differential expression of nine genes, related to the regulation of reproductive functions and metabolic homeostasis, was confirmed by quantitative RT-PCR. A functional analysis of the relationships between DE-genes indicated that OXB interacts with the genes involved in the processes such as the inflammatory response, the response to interleukin-6, cytokine receptor activity, the regulation of cell activation, growth factor receptor binding, lipid modification and the steroid metabolic process. An analysis of DE-genes and their functional relationships suggests that OXB could be involved in the mechanisms such as the regulation of cell proliferation and development, inhibition of contractility, regulation of programmed cell death, and the development of blood vessels, all of which facilitate implantation.
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Affiliation(s)
- Ewa Zaobidna
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 1A, 10-719, Olsztyn-Kortowo, Poland.
| | - Marta Kiezun
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 1A, 10-719, Olsztyn-Kortowo, Poland.
| | - Kamil Dobrzyn
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 1A, 10-719, Olsztyn-Kortowo, Poland.
| | - Karol Szeszko
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 1A, 10-719, Olsztyn-Kortowo, Poland.
| | - Edyta Rytelewska
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 1A, 10-719, Olsztyn-Kortowo, Poland.
| | - Katarzyna Kisielewska
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 1A, 10-719, Olsztyn-Kortowo, Poland.
| | - Marlena Gudelska
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 1A, 10-719, Olsztyn-Kortowo, Poland.
| | - Kinga Bors
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 1A, 10-719, Olsztyn-Kortowo, Poland.
| | - Grzegorz Kopij
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 1A, 10-719, Olsztyn-Kortowo, Poland.
| | - Karolina Szymanska
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 1A, 10-719, Olsztyn-Kortowo, Poland.
| | - Barbara Kaminska
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 1A, 10-719, Olsztyn-Kortowo, Poland.
| | - Tadeusz Kaminski
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 1A, 10-719, Olsztyn-Kortowo, Poland.
| | - Nina Smolinska
- Department of Animal Anatomy and Physiology, Faculty of Biology and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 1A, 10-719, Olsztyn-Kortowo, Poland.
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11
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Li M, Russo M, Pirozzi F, Tocchetti CG, Ghigo A. Autophagy and cancer therapy cardiotoxicity: From molecular mechanisms to therapeutic opportunities. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2020; 1867:118493. [DOI: 10.1016/j.bbamcr.2019.06.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 05/31/2019] [Accepted: 06/15/2019] [Indexed: 11/25/2022]
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12
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Ovarian Cancer Dissemination-A Cell Biologist's Perspective. Cancers (Basel) 2019; 11:cancers11121957. [PMID: 31817625 PMCID: PMC6966436 DOI: 10.3390/cancers11121957] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 12/04/2019] [Indexed: 12/16/2022] Open
Abstract
Epithelial ovarian cancer (EOC) comprises multiple disease states representing a variety of distinct tumors that, irrespective of tissue of origin, genetic aberrations and pathological features, share common patterns of dissemination to the peritoneal cavity. EOC peritoneal dissemination is a stepwise process that includes the formation of malignant outgrowths that detach and establish widespread peritoneal metastases through adhesion to serosal membranes. The cell biology associated with outgrowth formation, detachment, and de novo adhesion is at the nexus of diverse genetic backgrounds that characterize the disease. Development of treatment for metastatic disease will require detailed characterization of cellular processes involved in each step of EOC peritoneal dissemination. This article offers a review of the literature that relates to the current stage of knowledge about distinct steps of EOC peritoneal dissemination, with emphasis on the cell biology aspects of the process.
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13
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Zheng WF, Zhang SY, Ma HF, Chang XW, Wang H. C1qTNF-related protein-6 protects against doxorubicin-induced cardiac injury. J Cell Biochem 2019; 120:10748-10755. [PMID: 30719766 DOI: 10.1002/jcb.28366] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 11/29/2018] [Indexed: 12/11/2022]
Abstract
The clinical use of doxorubicin (DOX) is limited by its toxic effect. However, there is no specific drug that can prevent DOX-related cardiac injury. C1qTNF-related protein-6 (CTRP6) is a newly identified adiponectin paralog with many protective functions on metabolism and cardiovascular diseases. However, little is known about the effect of CTRP6 on DOX-induced cardiac injury. The present study aimed to investigate whether CTRP6 could protect against DOX-related cardiotoxicity. To induce acute cardiotoxicity, the mice were intraperitoneally injected with a single dose of DOX (15 mg/kg). Cardiomyocyte-specific CTRP6 overexpression was achieved using an adenoassociated virus system at 4 weeks before DOX injection. The data in our study demonstrated that CTRP6 messenger RNA and protein expression were decreased in DOX-treated hearts. CTRP6 attenuated cardiac atrophy induced by DOX injection and inhibited cardiac apoptosis and improved cardiac function in vivo. CTRP6 also promoted the activation of protein kinase B (AKT/PKB) signaling pathway in DOX-treated mice. CTRP6 prevented cardiomyocytes from DOX-induced apoptosis and activated the AKT pathway in vitro. CTRP6 lost its protection against DOX-induced cardiac injury in mice with AKT inhibition. In conclusion, CTRP6 protected the heart from DOX-cardiotoxicity and improves cardiac function via activation of the AKT signaling pathway.
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Affiliation(s)
- Wei-Feng Zheng
- Department of Cardiology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, Henan, China
| | - Shou-Yan Zhang
- Department of Cardiology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, Henan, China
| | - Hui-Fang Ma
- Department of Cardiology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, Henan, China
| | - Xue-Wei Chang
- Department of Cardiology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, Henan, China
| | - Hao Wang
- Department of Cardiology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, Henan, China
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Luan Y, Sun C, Wang J, Jiang W, Xin Q, Zhang Z, Wang Y. Baicalin attenuates myocardial ischemia-reperfusion injury through Akt/NF-κB pathway. J Cell Biochem 2018; 120:3212-3219. [PMID: 30242878 DOI: 10.1002/jcb.27587] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 08/07/2018] [Indexed: 12/19/2022]
Abstract
BACKGROUND Baicalin can attenuate myocardial ischemia-reperfusion (I/R) on damage. However, the mechanisms are still not fully understood. The study aimed to investigate the antiapoptosis and anti-inflammatory effects of baicalin on myocardial I/R-induced injury. METHODS We established male rats I/R model, and baicalin was intragastric administration after ischemia onset. All experimental animals were randomly divided into five groups: group I, sham; group II, I/R; group III, 50 mg/kg; group IV, 100 mg/kg; and group V, 200 mg/kg baicalin. Postoperation, left ventricular (LV) function was recorded by transthoracic echocardiography. Myocardial infarct size, number of vessels and apoptosis were detected by histology and immunohistochemistry. Furthermore, the messenger RNA (mRNA) and protein levels of tumor necrosis factor α (TNF-α), interleukin 1β (IL-1β), IL-6, IL-8, IL-10, Bcl2, Bax, caspase-3, phosphatidylinositol 3-kinase (PI3K), Akt, p-Akt, and nuclear factor-κB (NF-κB) p65 in myocardial tissues were measured by quantitative real-time polymerase chain reaction and Western blot analysis assays. RESULT When compared with I/R groups, baicalin could significantly improve LV hemodynamic parameters. Myocardial infarct size and apoptosis were significantly decreased, but the vessel density was increased. The mRNA levels of TNF-α, IL-1β, IL-6, and IL-8 were downregulated, but the levels of IL-10, proapoptotic genes caspase-3, and the ratio of Bax/Bcl2 were upregulated. Moreover, the protein expression of PI3K, p-Akt, and Akt were upregulated but NF-κB p65 was downregulated in the groups III, IV, and V than in group II. CONCLUSION Our current study suggested that baicalin attenuated myocardial I/R-induced damage, inhibited myocardial apoptosis, and inflammation by activating PI3K/Akt but suppressing NF-κB signaling.
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Affiliation(s)
- Yun Luan
- Central Research Laboratory, Institute of Medical Science, The Second Hospital of Shandong University, Jinan, China
| | - Chao Sun
- Central Research Laboratory, Institute of Medical Science, The Second Hospital of Shandong University, Jinan, China
| | - Jue Wang
- Central Research Laboratory, Institute of Medical Science, The Second Hospital of Shandong University, Jinan, China
| | - Wen Jiang
- Central Research Laboratory, Institute of Medical Science, The Second Hospital of Shandong University, Jinan, China
| | - Qian Xin
- Central Research Laboratory, Institute of Medical Science, The Second Hospital of Shandong University, Jinan, China
| | - Zhaohua Zhang
- Department of Pediatrics, The Second Hospital of Shandong University, Jinan, China
| | - Yibiao Wang
- Department of Pediatrics, The Second Hospital of Shandong University, Jinan, China
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15
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6-Gingerol Activates PI3K/Akt and Inhibits Apoptosis to Attenuate Myocardial Ischemia/Reperfusion Injury. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 2018:9024034. [PMID: 29743926 PMCID: PMC5884032 DOI: 10.1155/2018/9024034] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 01/25/2018] [Accepted: 02/11/2018] [Indexed: 12/24/2022]
Abstract
6-Gingerol (6-G) is known to alleviate myocardial ischemia/reperfusion injury. However, the underlying molecular mechanisms of 6-G myocardial protection are not known. In this study, the protective effect of 6-G on ischemia/reperfusion (I/R) damage and whether such a mechanism was related to apoptosis inhibition and activation of phosphoinositide 3-kinases (PI3K)/serine/threonine kinase (Akt) signaling pathway were investigated. Rats were subjected to I/R in the presence or absence of 6-G and the changes of cardiac function, infarct size and histopathological changes, and the levels of cardiac troponin T, creatine kinase-MB, and myocardial apoptosis were examined. The expression of caspase-3, PI3K, p-Akt, and Akt was also determined. We found that 6-G (6 mg/kg) pretreatment significantly improved heart function and ameliorated infarct size and histopathological changes and cardiac troponin T and creatine kinase-MB levels induced by I/R. Moreover, pretreatment with 6-G significantly inhibited myocardial apoptosis and caspase-3 activation induced by I/R. 6-G also upregulated expression of PI3K, p-Akt, and Akt in myocardial tissues. Taken together, these findings suggest that 6-G inhibits apoptosis and activates PI3K/Akt signaling in response to myocardial I/R injury as a possible mechanism to attenuate I/R-induced injury in heart. These results might be important for developing novel strategies for preventing myocardial I/R injury.
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16
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Jia D, Cai M, Xi Y, Du S, ZhenjunTian. Interval exercise training increases LIF expression and prevents myocardial infarction-induced skeletal muscle atrophy in rats. Life Sci 2017; 193:77-86. [PMID: 29223542 DOI: 10.1016/j.lfs.2017.12.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Revised: 12/05/2017] [Accepted: 12/06/2017] [Indexed: 01/11/2023]
Abstract
AIMS Myocardial infarction (MI) is commonly associated with body weight loss and skeletal muscle atrophy. Studies have shown that exercise training could give beneficial effects on skeletal muscle growth. Leukemia inhibitory factor (LIF) is a key regulator of muscle growth and regeneration. The aim of this study was to investigate the effects of interval exercise training (IET) on the expression of LIF and the MI-induced skeletal muscle atrophy. MAIN METHODS Male Sprague-Dawley rats were used to establish the MI model by ligation of the left anterior descending coronary artery. Infarcted Rats were divided into two groups: sedentary MI group (MI) and MI with interval exercise group (ME), and compared to sham-operated group (Sham). Exercise-trained animals were subjected to eight weeks of IET. Cardiac function, collagen volume fraction, expression of LIF and its receptor LIFR, myofiber size, apoptosis and proliferation in gastrocnemius muscle were analyzed. KEY FINDINGS IET increased heart functional performance and was accompanied with reversing cardiac pathological remodeling. Moreover, IET increased the expression of LIF and LIFR, activated signal transducer and activator of transcription (STAT3), reduced apoptosis and promoted proliferation in gastrocnemius muscle compared with the MI group. In addition, there was a significant negative correlation between skeletal muscle atrophy and LIF expression which was stimulated by IET in infarcted rats. SIGNIFICANCE IET reverses MI-induced cardiac dysfunction and skeletal muscle atrophy. In addition, IET up-regulates the expression of muscle LIF/LIFR and activates the STAT3.
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Affiliation(s)
- Dandan Jia
- Institute of Sports and Exercise Biology, Shaanxi Normal University, Xi'an, Shaanxi, 710119, PR China
| | - Mengxin Cai
- Institute of Sports and Exercise Biology, Shaanxi Normal University, Xi'an, Shaanxi, 710119, PR China
| | - Yue Xi
- Institute of Sports and Exercise Biology, Shaanxi Normal University, Xi'an, Shaanxi, 710119, PR China
| | - Shaojun Du
- Institute of Marine and Environmental Technology, Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, MD 21202, USA
| | - ZhenjunTian
- Institute of Sports and Exercise Biology, Shaanxi Normal University, Xi'an, Shaanxi, 710119, PR China.
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17
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Xia J, Li CY, Wang H, Zhang QM, Han ZM. Therapeutic effects of scoparone on pilocarpine (Pilo)-induced seizures in mice. Biomed Pharmacother 2017; 97:1501-1513. [PMID: 29793313 DOI: 10.1016/j.biopha.2017.09.127] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 09/24/2017] [Accepted: 09/24/2017] [Indexed: 02/07/2023] Open
Abstract
Epilepsy is a common and devastating neurological disorder. Inflammatory processes and apoptosis in brain tissue have been reported in human epilepsy. Scoparone (6,7-dimethoxycoumarin) is an important chemical substance, which has multiple beneficial activities, including antitumor, anti-inflammatory and anti-coagulant properties. In our present study, we attempted to investigate if scoparone could attenuate seizures-induced blood brain barrier breakdown, inflammation and apoptosis. Pilocarpine (Pilo) and methylscopolamine were used to establish acute seizure animal model. Scoparone suppressed the leakage of blood brain barrier, inflammation and apoptosis. In hippocampus and cortex, the expression of inflammation-associated molecules, such as chemokine (CXC motif) ligand 1 (CXCL-1), interleukin-1β (IL-1β), tumor necrosis factor-α (TNF-α), IL-6, hypoxia-inducible factor 1α (HIF-1α), and monocyte chemoattractant protein-1 (MCP-1), were reduced by scoparone through inactivating toll-like receptor 4/nuclear factor-kappa B (TLR4/NF-κB) pathway. Scoparone reduced apoptotic levels in hippocampus by TUNEL analysis, along with decreased Caspase-3 and PARP cleavage. In addition, phosphoinositide 3-kinase/protein kinase B (PI3K/AKT) pathway in Pilo-induced acute seizures was also inactivated by scoparone. In vitro, we confirmed that scoparone inhibited LPS-caused astrocytes activation as proved by the reduced glial fibrillary acidic protein (GFAP) levels, inflammation and apoptosis, which were at least partly dependent on AKT suppression. The results above indicated that scoparone could relieve pilocarpine (Pilo)-induced seizures against neural cell inflammation and apoptosis.
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Affiliation(s)
- Jie Xia
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, PR China
| | - Cheng-Yan Li
- Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, PR China.
| | - Hui Wang
- Department of Anesthesiology, Renhe Hospital of China Three Gorges University, Yichang, Hubei 443002, PR China
| | - Qi-Mei Zhang
- Institute of Neurology, China Three Gorges University, Yichang, Hubei 443002, PR China
| | - Zhong-Mou Han
- Institute of Neurology, China Three Gorges University, Yichang, Hubei 443002, PR China
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18
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Gao S, Durstine JL, Koh HJ, Carver WE, Frizzell N, Carson JA. Acute myotube protein synthesis regulation by IL-6-related cytokines. Am J Physiol Cell Physiol 2017; 313:C487-C500. [PMID: 28768641 DOI: 10.1152/ajpcell.00112.2017] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 07/20/2017] [Accepted: 07/25/2017] [Indexed: 12/19/2022]
Abstract
IL-6 and leukemia inhibitory factor (LIF), members of the IL-6 family of cytokines, play recognized paradoxical roles in skeletal muscle mass regulation, being associated with both growth and atrophy. Overload or muscle contractions can induce a transient increase in muscle IL-6 and LIF expression, which has a regulatory role in muscle hypertrophy. However, the cellular mechanisms involved in this regulation have not been completely identified. The induction of mammalian target of rapamycin complex 1 (mTORC1)-dependent myofiber protein synthesis is an established regulator of muscle hypertrophy, but the involvement of the IL-6 family of cytokines in this process is poorly understood. Therefore, we investigated the acute effects of IL-6 and LIF administration on mTORC1 signaling and protein synthesis in C2C12 myotubes. The role of glycoprotein 130 (gp130) receptor and downstream signaling pathways, including phosphoinositide 3-kinase (PI3K)-Akt-mTORC1 and signal transducer and activator of transcription 3 (STAT3)-suppressor of cytokine signaling 3 (SOCS3), was investigated by administration of specific siRNA or pharmaceutical inhibitors. Acute administration of IL-6 and LIF induced protein synthesis, which was accompanied by STAT3 activation, Akt-mTORC1 activation, and increased SOCS3 expression. This induction of protein synthesis was blocked by both gp130 siRNA knockdown and Akt inhibition. Interestingly, STAT3 inhibition or Akt downstream mTORC1 signaling inhibition did not fully block the IL-6 or LIF induction of protein synthesis. SOCS3 siRNA knockdown increased basal protein synthesis and extended the duration of the protein synthesis induction by IL-6 and LIF. These results demonstrate that either IL-6 or LIF can activate gp130-Akt signaling axis, which induces protein synthesis via mTORC1-independent mechanisms in cultured myotubes. However, IL-6- or LIF-induced SOCS3 negatively regulates the activation of myotube protein synthesis.
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Affiliation(s)
- Song Gao
- Department of Exercise Science, University of South Carolina, Columbia, South Carolina
| | - J Larry Durstine
- Department of Exercise Science, University of South Carolina, Columbia, South Carolina
| | - Ho-Jin Koh
- Department of Exercise Science, University of South Carolina, Columbia, South Carolina
| | - Wayne E Carver
- Department of Cell Biology and Anatomy, School of Medicine, University of South Carolina, Columbia, South Carolina
| | - Norma Frizzell
- Department of Pharmacology, Physiology, and Neuronscience, School of Medicine, University of South Carolina, Columbia, South Carolina; and
| | - James A Carson
- Department of Exercise Science, University of South Carolina, Columbia, South Carolina; .,Center for Colon Cancer Research, University of South Carolina, Columbia, South Carolina
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19
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EGFR-mediated apoptosis via STAT3. Exp Cell Res 2017; 356:93-103. [PMID: 28433699 DOI: 10.1016/j.yexcr.2017.04.016] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2017] [Revised: 04/06/2017] [Accepted: 04/08/2017] [Indexed: 11/20/2022]
Abstract
The Epidermal Growth Factor Receptor (EGFR) is a cell surface receptor with primary implications in cell growth in both normal and malignant tissue. Paradoxically, cell lines that hyperexpress the EGFR have been documented to undergo receptor-mediated apoptosis. The underlying mechanism by which EGF-induced apoptosis occurs however remains inexplicit. In an attempt to identify this mechanism, we assessed downstream effectors of EGFR in MDA-MB-468 cells during conditions of EGF-induced apoptosis. The effector assessment revealed STAT3 as a potential mediator of EGF-induced apoptosis. Alternative strategies for activating STAT3, independent of EGFR stimulation, resulted in the induction of the apoptotic pathways. A reduction in STAT3 expression via RNAi resulted in a significant attenuation of EGF-induced PARP cleavage. Our findings support STAT3 as a positive mediator of EGF-induced apoptosis in MDA-MB-468 cells.
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Zhou L, Li R, Liu C, Sun T, Htet Aung LH, Chen C, Gao J, Zhao Y, Wang K. Foxo3a inhibits mitochondrial fission and protects against doxorubicin-induced cardiotoxicity by suppressing MIEF2. Free Radic Biol Med 2017; 104:360-370. [PMID: 28137654 DOI: 10.1016/j.freeradbiomed.2017.01.037] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Revised: 01/24/2017] [Accepted: 01/26/2017] [Indexed: 10/20/2022]
Abstract
Doxorubicin (DOX) as a chemotherapeutic drug is widely used to treat a variety of human tumors. However, a major factor limiting its clinical use is its cardiotoxicity. The molecular components and detailed mechanisms regulating DOX-induced cardiotoxicity remain largely unidentified. Here we report that Foxo3a is downregulated in the cardiomyocyte and mouse heart in response to DOX treatment. Foxo3a attenuates DOX-induced mitochondrial fission and apoptosis in cardiomyocytes. Cardiac specific Foxo3a transgenic mice show reduced mitochondrial fission, apoptosis and cardiotoxicity upon DOX administration. Furthermore, Foxo3a directly targets mitochondrial dynamics protein of 49kDa (MIEF2) and suppresses its expression at transcriptional level. Knockdown of MIEF2 reduces DOX-induced mitochondrial fission and apoptosis in cardiomyocytes and in vivo. Also, knockdown of MIEF2 protects heart from DOX-induced cardiotoxicity. Our study identifies a novel pathway composed of Foxo3a and MIEF2 that mediates DOX cardiotoxicity. This discovery provides a promising therapeutic strategy for the treatment of cancer therapy and cardioprotection.
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Affiliation(s)
- Luyu Zhou
- Center for Developmental Cardiology, Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao 266021, China
| | - Ruibei Li
- School of Professional Studies, Northwestern University, Chicago, IL 60611, USA
| | - Cuiyun Liu
- Center for Developmental Cardiology, Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao 266021, China
| | - Teng Sun
- Center for Developmental Cardiology, Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao 266021, China
| | - Lynn Htet Htet Aung
- College of Medicine, University of Illinois at Chicago, Chicago, IL 60612, USA
| | - Chao Chen
- Center for Developmental Cardiology, Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao 266021, China
| | - Jinning Gao
- Center for Developmental Cardiology, Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao 266021, China
| | - Yanfang Zhao
- Center for Developmental Cardiology, Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao 266021, China
| | - Kun Wang
- Center for Developmental Cardiology, Institute for Translational Medicine, College of Medicine, Qingdao University, Qingdao 266021, China.
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Signaling Pathways in Cardiac Myocyte Apoptosis. BIOMED RESEARCH INTERNATIONAL 2016; 2016:9583268. [PMID: 28101515 PMCID: PMC5215135 DOI: 10.1155/2016/9583268] [Citation(s) in RCA: 97] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Accepted: 11/20/2016] [Indexed: 12/16/2022]
Abstract
Cardiovascular diseases, the number 1 cause of death worldwide, are frequently associated with apoptotic death of cardiac myocytes. Since cardiomyocyte apoptosis is a highly regulated process, pharmacological intervention of apoptosis pathways may represent a promising therapeutic strategy for a number of cardiovascular diseases and disorders including myocardial infarction, ischemia/reperfusion injury, chemotherapy cardiotoxicity, and end-stage heart failure. Despite rapid growth of our knowledge in apoptosis signaling pathways, a clinically applicable treatment targeting this cellular process is currently unavailable. To help identify potential innovative directions for future research, it is necessary to have a full understanding of the apoptotic pathways currently known to be functional in cardiac myocytes. Here, we summarize recent progress in the regulation of cardiomyocyte apoptosis by multiple signaling molecules and pathways, with a focus on the involvement of these pathways in the pathogenesis of heart disease. In addition, we provide an update regarding bench to bedside translation of this knowledge and discuss unanswered questions that need further investigation.
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Wu J, Guo W, Lin SZ, Wang ZJ, Kan JT, Chen SY, Zhu YZ. Gp130-mediated STAT3 activation by S-propargyl-cysteine, an endogenous hydrogen sulfide initiator, prevents doxorubicin-induced cardiotoxicity. Cell Death Dis 2016; 7:e2339. [PMID: 27537522 PMCID: PMC5108313 DOI: 10.1038/cddis.2016.209] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Revised: 06/08/2016] [Accepted: 06/09/2016] [Indexed: 12/20/2022]
Abstract
Doxorubicin (Dox) could trigger a large amount of apoptotic cells in the myocardium, which leads to dilated cardiomyopathy and heart failure. S-propargyl-cysteine (SPRC), a producing agent of endogenous hydrogen sulfide (H2S), possesses cardioprotective efficacy. However, the specific effect and mechanism of SPRC in Dox-induced cardiotoxicity remain elusive. Given gp130 with its main downstream signaling molecule, signal transducer and activator of transcription 3 (STAT3), is involved in cardiac myocyte survival and growth; the present study was performed to elucidate whether SPRC counteracts Dox-induced cardiotoxicity, and if so, whether the gp130/STAT3 pathway is involved in this cardioprotective activity. SPRC stimulated the activation of STAT3 via gp130-mediated transduction tunnel in vitro and in vivo. In Dox-stimulated cardiotoxicity, SPRC enhanced cell viability, restored expression of gp130/STAT3-regulated downstream genes, inhibited apoptosis and oxidative stress, and antagonized mitochondrial dysfunction and intracellular Ca(2+) overload. Intriguingly, blockade of gp130/STAT3 signaling abrogated all these beneficial capacities of SPRC. Our findings present the first piece of evidence for the therapeutic properties of SPRC in alleviating Dox cardiotoxicity, which could be attributed to the activation of gp130-mediated STAT3 signaling. This will offer a novel molecular basis and therapeutic strategy of H2S donor for the treatment of heart failure.
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Affiliation(s)
- J Wu
- Shanghai Key Laboratory of Bioactive Small Molecules, Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai, China
| | - W Guo
- Shanghai Key Laboratory of Bioactive Small Molecules, Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai, China
| | - S-Z Lin
- Shanghai Key Laboratory of Bioactive Small Molecules, Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai, China
| | - Z-J Wang
- Shanghai Key Laboratory of Bioactive Small Molecules, Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai, China
| | - J-T Kan
- Shanghai Key Laboratory of Bioactive Small Molecules, Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai, China
| | - S-Y Chen
- Department of Cardiovascular Surgery, Guangdong General Hospital, Guangzhou, Guangdong, China
| | - Y-Z Zhu
- Shanghai Key Laboratory of Bioactive Small Molecules, Department of Pharmacology, School of Pharmacy, Fudan University, Shanghai, China.,School of Pharmacy, Macau University of Science & Technology, Macau, China
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23
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Tan TC, Neilan TG, Francis S, Plana JC, Scherrer-Crosbie M. Anthracycline-Induced Cardiomyopathy in Adults. Compr Physiol 2016; 5:1517-40. [PMID: 26140726 DOI: 10.1002/cphy.c140059] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Anthracyclines are one of the most commonly used antineoplastic agent classes, and a core part of the treatment in breast cancers, hematological malignancies, and sarcomas. Their benefit is decreased by their well-recognized cardiotoxicity. The purpose of this review is to outline the presentation, mechanisms, diagnosis, and treatment of anthracyclines-induced cardiotoxicity. Symptomatic heart failure occurs in 2% to 5% of patients treated with anthrayclines and may be higher in older patients or patients with cardiovascular risk factors. The mechanisms involved in anthracycline-induced cardiotoxicity involve myocyte loss by apoptosis in the presence of a limited regenerative capacity. Once symptomatic, anthracycline-induced cardiotoxicity is associated with markedly decreased survival. Left ventricular ejection fraction (LVEF), mostly determined using echocardiography, is used to monitor patients treated with anthracyclines. As more than 1/3 of patients treated with anthracyclines do not recover their baseline LVEF once it is decreased, more sensitive echocardiographic indices of LV function such as myocardial deformation or biomarkers have been studied in patients monitoring. Cardioprotective treatments such as angiotensin-converting enzyme inhibitors, beta-blockers, iron chelators, statins, and metformin are also the topic of research efforts.
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Affiliation(s)
- Timothy C Tan
- Cardiac Ultrasound Laboratory, Division of Cardiology, Massachusetts General Hospital, Boston, Massachusetts, USA.,Division of Cardiology, Blacktown Hospital, University of Western Sydney, Australia
| | - Tomas G Neilan
- Cardio-oncology program, Division of Cardiology, Massachusetts General Hospital, Boston, Massachusetts, USA.,Cardiac MR PET CT Program, Division of Radiology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Sanjeev Francis
- Cardio-oncology program, Division of Cardiology, Massachusetts General Hospital, Boston, Massachusetts, USA.,Cardiac MR PET CT Program, Division of Radiology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Juan Carlos Plana
- Division of Cardiology, Baylor College of Medicine, Houston, Texas, USA
| | - Marielle Scherrer-Crosbie
- Cardiac Ultrasound Laboratory, Division of Cardiology, Massachusetts General Hospital, Boston, Massachusetts, USA.,Cardio-oncology program, Division of Cardiology, Massachusetts General Hospital, Boston, Massachusetts, USA
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24
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Jayachandran KS, Vasanthi AHR, Gurusamy N. Steroidal Saponin Diosgenin from Dioscorea bulbifera Protects Cardiac Cells from Hypoxia-reoxygenation Injury Through Modulation of Pro-survival and Pro-death Molecules. Pharmacogn Mag 2016; 12:S14-20. [PMID: 27041852 PMCID: PMC4791993 DOI: 10.4103/0973-1296.176114] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Background: Diosgenin, a steroidal saponin from plants, exhibits many biological potentials. Herein, the cardioprotective role of diosgenin is studied. Materials and Methods: The effect of diosgenin, isolated from Dioscorea bulbifera, was studied on hypoxia-reoxygenation (HR) in H9c2 cardiomyoblast cells. The amount of diosgenin in the plant extract was analyzed by high-performance thin layer chromatography using a solvent system comprising of chloroform:methanol:acetic acid:formic acid (13:4.5:1.5:1). Cardioprotection was checked by (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. Further, the release of lactate dehydrogenase, an enzyme released during cell death was checked. The proteins responsible for cell death (Bax) and cell survival (Bcl-2, hemeoxygenase-1 and Akt) were analyzed using Western blot to check the cardioprotective role of diosgenin. Conclusion: Supplementation of diosgenin mitigates HR injury, thereby exhibiting cardioprotective potential. SUMMARY The cardioprotective effect of Diosgenin was evidenced from the improved cell survival after hypoxia-reoxygenation injury demonstrated through MTT cell survival assay. The release of lactate dehydrogenase, an enzyme released during cell death was decreased by Diosgenin. Diosgenin upregulated the pro-survival molecules like B-cell lymphoma 2 (Bcl-2), heme oxygenase-1 and the phosphorylation of ATK (at serine 473); and at the same time pro-.death molecules like Bax was downregulated. Thus, Diosgenin as a plant based steroidal saponin is confirmed to mitigate ischemic reperfusion injury.
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Affiliation(s)
| | | | - Narasimman Gurusamy
- Department of Pharmacology, College of Pharmacy, King Khalid University, Abha, Kingdom of Saudi Arabia
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25
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D'Amico MA, Ghinassi B, Izzicupo P, Di Ruscio A, Di Baldassarre A. IL-6 Activates PI3K and PKCζ Signaling and Determines Cardiac Differentiation in Rat Embryonic H9c2 Cells. J Cell Physiol 2016. [PMID: 26205888 DOI: 10.1002/jcp.25101] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
INTRODUCTION IL-6 influences several biological processes, including cardiac stem cell and cardiomyocyte physiology. Although JAK-STAT3 activation is the defining feature of IL-6 signaling, signaling molecules such as PI3K, PKCs, and ERK1/2 are also activated and elicit different responses. Moreover, most studies on the specific role of these signaling molecules focus on the adult heart, and few studies are available on the biological effects evoked by IL-6 in embryonic cardiomyocytes. AIM The aim of this study was to clarify the biological response of embryonic heart derived cells to IL-6 by analyzing the morphological modifications and the signaling cascades evoked by the cytokine in H9c2 cells. RESULTS IL-6 stimulation determined the terminal differentiation of H9c2 cells, as evidenced by the increased expression of cardiac transcription factors (NKX2.5 and GATA4), structural proteins (α-myosin heavy chain and cardiac Troponin T) and the gap junction protein Connexin 43. This process was mediated by the rapid modulation of PI3K, Akt, PTEN, and PKCζ phosphorylation levels. PI3K recruitment was an upstream event in the signaling cascade and when PI3K was inhibited, IL-6 failed to modify PKCζ, PTEN, and Akt phosphorylation. Blocking PKCζ activity affected only PTEN and Akt. Finally, the overexpression of a constitutively active form of PKCζ in H9c2 cells largely mimicked the morphological and molecular effects evoked by IL-6. CONCLUSIONS This study demonstrated that IL-6 induces the cardiac differentiation of H9c2 embryonic cells though a signaling cascade that involves PI3K, PTEN, and PKCζ activities.
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Affiliation(s)
- Maria Angela D'Amico
- Department of Medicine and Aging Sciences, Section of Human Morphology, G. d'Annunzio University of Chieti-Pescara, Chieti, Italy
| | - Barbara Ghinassi
- Department of Medicine and Aging Sciences, Section of Human Morphology, G. d'Annunzio University of Chieti-Pescara, Chieti, Italy
| | - Pascal Izzicupo
- Department of Medicine and Aging Sciences, Section of Human Morphology, G. d'Annunzio University of Chieti-Pescara, Chieti, Italy
| | - Annalisa Di Ruscio
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - Angela Di Baldassarre
- Department of Medicine and Aging Sciences, Section of Human Morphology, G. d'Annunzio University of Chieti-Pescara, Chieti, Italy
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26
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New signal transduction paradigms in anthracycline-induced cardiotoxicity. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2016; 1863:1916-25. [PMID: 26828775 DOI: 10.1016/j.bbamcr.2016.01.021] [Citation(s) in RCA: 131] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 01/06/2016] [Accepted: 01/28/2016] [Indexed: 12/21/2022]
Abstract
Anthracyclines, such as doxorubicin, are the most potent and widely used chemotherapeutic agents for the treatment of a variety of human cancers, including solid tumors and hematological malignancies. However, their clinical use is hampered by severe cardiotoxic side effects and cancer therapy-related heart disease has become a leading cause of morbidity and mortality among cancer survivors. The identification of therapeutic strategies limiting anthracycline cardiotoxicity with preserved antitumor efficacy thus represents the current challenge of cardio-oncologists. Anthracycline cardiotoxicity has been originally ascribed to the ability of this class of drugs to disrupt iron metabolism and generate excess of reactive oxygen species (ROS). However, small clinical trials with iron chelators and anti-oxidants failed to provide any benefit and suggested that doxorubicin cardiotoxicity is not solely due to redox cycling. New emerging explanations include anthracycline-dependent regulation of major signaling pathways controlling DNA damage response, cardiomyocyte survival, cardiac inflammation, energetic stress and gene expression modulation. This review will summarize recent studies unraveling the complex web of mechanisms of doxorubicin-mediated cardiotoxicity, and identifying new druggable players for the prevention of heart disease in cancer patients. This article is part of a Special Issue entitled: Cardiomyocyte Biology: Integration of Developmental and Environmental Cues in the Heart edited by Marcus Schaub and Hughes Abriel.
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Chen YL, Chung SY, Chai HT, Chen CH, Liu CF, Chen YL, Huang TH, Zhen YY, Sung PH, Sun CK, Chua S, Lu HI, Lee FY, Sheu JJ, Yip HK. Early Administration of Carvedilol Protected against Doxorubicin-Induced Cardiomyopathy. J Pharmacol Exp Ther 2015; 355:516-27. [PMID: 26511374 DOI: 10.1124/jpet.115.225375] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Accepted: 10/07/2015] [Indexed: 12/18/2022] Open
Abstract
This study tested for the benefits of early administration of carvedilol as protection against doxorubicin (DOX)-induced cardiomyopathy. Thirty male, adult B6 mice were categorized into group 1 (untreated control), group 2 [DOX treatment (15 mg/every other day for 2 weeks, i.p.], and group 3 [carvedilol (15 mg/kg/d, from day 7 after DOX treatment for 28 days)], and euthanized by day 35 after DOX treatment. By day 35, the left ventricular ejection fraction (LVEF) was significantly lower in group 2 than in groups 1 and 3, and significantly lower in group 3 than in group 1, whereas the left ventricular (LV) end-diastolic and LV end-systolic dimensions showed an opposite pattern to the LVEF among the three groups. The protein expressions of fibrotic (Smad3, TGF-β), apoptotic (BAX, cleaved caspase 3, PARP), DNA damage (γ-H2AX), oxidative stress (oxidized protein), mitochondrial damage (cytosolic cytochrome-C), heart failure (brain natriuretic peptide), and hypertrophic (β-MHC) biomarkers of the LV myocardium showed an opposite pattern to the LVEF among the three groups. The protein expressions of antifibrotic (BMP-2, Smad1/5), α-MHC, and phosphorylated-Akt showed an identical pattern to the LVEF among the three groups. The microscopic findings of fibrotic and collagen-deposition areas and the numbers of γ-H2AX(+) and 53BP1(+) cells in the LV myocardium exhibited an opposite pattern, whereas the numbers of endothelial cell (CD31(+), vWF(+)) markers showed an identical pattern to the LVEF among the three groups. Cardiac stem cell markers (C-kit(+) and Sca-1(+) cells) were significantly and progressively increased from group 1 to group 3. Additionally, the in vitro study showed carvedilol treatment significantly inhibited DOX-induced cardiomyoblast DNA (CD90/XRCC1(+), CD90/53BP1(+), and r-H2AX(+) cells) damage. Early carvedilol therapy protected against DOX-induced DNA damage and cardiomyopathy.
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Affiliation(s)
- Yung-Lung Chen
- Division of Cardiology, Department of Internal Medicine (Y.-L.C., S.-Y.C., H.-T.C., Y.-L.C., T.-H.H., Y.-Y.Z., P.-H.S., S.C., H.-K.Y.); Division of General Medicine, Department of Internal Medicine (C.-H.C.); Department of Emergency Medicine (C.-F.L.); Division of Thoracic and Cardiovascular Surgery, Department of Surgery (H.-I.L., F.-Y.L., J.-J.S.); Institute for Translational Research in Biomedine (S.C., H.-K.Y.); and Center for Shockwave Medicine and Tissue Engineering (H.-K.Y.), Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan; Department of Emergency Medicine, E-Da Hospital, I-Shou University School of Medicine for International Students, Kaohsiung, Taiwan (C.-K.S.); and Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan (H.-K.Y.)
| | - Sheng-Ying Chung
- Division of Cardiology, Department of Internal Medicine (Y.-L.C., S.-Y.C., H.-T.C., Y.-L.C., T.-H.H., Y.-Y.Z., P.-H.S., S.C., H.-K.Y.); Division of General Medicine, Department of Internal Medicine (C.-H.C.); Department of Emergency Medicine (C.-F.L.); Division of Thoracic and Cardiovascular Surgery, Department of Surgery (H.-I.L., F.-Y.L., J.-J.S.); Institute for Translational Research in Biomedine (S.C., H.-K.Y.); and Center for Shockwave Medicine and Tissue Engineering (H.-K.Y.), Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan; Department of Emergency Medicine, E-Da Hospital, I-Shou University School of Medicine for International Students, Kaohsiung, Taiwan (C.-K.S.); and Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan (H.-K.Y.)
| | - Han-Tan Chai
- Division of Cardiology, Department of Internal Medicine (Y.-L.C., S.-Y.C., H.-T.C., Y.-L.C., T.-H.H., Y.-Y.Z., P.-H.S., S.C., H.-K.Y.); Division of General Medicine, Department of Internal Medicine (C.-H.C.); Department of Emergency Medicine (C.-F.L.); Division of Thoracic and Cardiovascular Surgery, Department of Surgery (H.-I.L., F.-Y.L., J.-J.S.); Institute for Translational Research in Biomedine (S.C., H.-K.Y.); and Center for Shockwave Medicine and Tissue Engineering (H.-K.Y.), Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan; Department of Emergency Medicine, E-Da Hospital, I-Shou University School of Medicine for International Students, Kaohsiung, Taiwan (C.-K.S.); and Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan (H.-K.Y.)
| | - Chih-Hung Chen
- Division of Cardiology, Department of Internal Medicine (Y.-L.C., S.-Y.C., H.-T.C., Y.-L.C., T.-H.H., Y.-Y.Z., P.-H.S., S.C., H.-K.Y.); Division of General Medicine, Department of Internal Medicine (C.-H.C.); Department of Emergency Medicine (C.-F.L.); Division of Thoracic and Cardiovascular Surgery, Department of Surgery (H.-I.L., F.-Y.L., J.-J.S.); Institute for Translational Research in Biomedine (S.C., H.-K.Y.); and Center for Shockwave Medicine and Tissue Engineering (H.-K.Y.), Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan; Department of Emergency Medicine, E-Da Hospital, I-Shou University School of Medicine for International Students, Kaohsiung, Taiwan (C.-K.S.); and Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan (H.-K.Y.)
| | - Chu-Feng Liu
- Division of Cardiology, Department of Internal Medicine (Y.-L.C., S.-Y.C., H.-T.C., Y.-L.C., T.-H.H., Y.-Y.Z., P.-H.S., S.C., H.-K.Y.); Division of General Medicine, Department of Internal Medicine (C.-H.C.); Department of Emergency Medicine (C.-F.L.); Division of Thoracic and Cardiovascular Surgery, Department of Surgery (H.-I.L., F.-Y.L., J.-J.S.); Institute for Translational Research in Biomedine (S.C., H.-K.Y.); and Center for Shockwave Medicine and Tissue Engineering (H.-K.Y.), Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan; Department of Emergency Medicine, E-Da Hospital, I-Shou University School of Medicine for International Students, Kaohsiung, Taiwan (C.-K.S.); and Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan (H.-K.Y.)
| | - Yi-Ling Chen
- Division of Cardiology, Department of Internal Medicine (Y.-L.C., S.-Y.C., H.-T.C., Y.-L.C., T.-H.H., Y.-Y.Z., P.-H.S., S.C., H.-K.Y.); Division of General Medicine, Department of Internal Medicine (C.-H.C.); Department of Emergency Medicine (C.-F.L.); Division of Thoracic and Cardiovascular Surgery, Department of Surgery (H.-I.L., F.-Y.L., J.-J.S.); Institute for Translational Research in Biomedine (S.C., H.-K.Y.); and Center for Shockwave Medicine and Tissue Engineering (H.-K.Y.), Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan; Department of Emergency Medicine, E-Da Hospital, I-Shou University School of Medicine for International Students, Kaohsiung, Taiwan (C.-K.S.); and Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan (H.-K.Y.)
| | - Tien-Hung Huang
- Division of Cardiology, Department of Internal Medicine (Y.-L.C., S.-Y.C., H.-T.C., Y.-L.C., T.-H.H., Y.-Y.Z., P.-H.S., S.C., H.-K.Y.); Division of General Medicine, Department of Internal Medicine (C.-H.C.); Department of Emergency Medicine (C.-F.L.); Division of Thoracic and Cardiovascular Surgery, Department of Surgery (H.-I.L., F.-Y.L., J.-J.S.); Institute for Translational Research in Biomedine (S.C., H.-K.Y.); and Center for Shockwave Medicine and Tissue Engineering (H.-K.Y.), Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan; Department of Emergency Medicine, E-Da Hospital, I-Shou University School of Medicine for International Students, Kaohsiung, Taiwan (C.-K.S.); and Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan (H.-K.Y.)
| | - Yen-Yi Zhen
- Division of Cardiology, Department of Internal Medicine (Y.-L.C., S.-Y.C., H.-T.C., Y.-L.C., T.-H.H., Y.-Y.Z., P.-H.S., S.C., H.-K.Y.); Division of General Medicine, Department of Internal Medicine (C.-H.C.); Department of Emergency Medicine (C.-F.L.); Division of Thoracic and Cardiovascular Surgery, Department of Surgery (H.-I.L., F.-Y.L., J.-J.S.); Institute for Translational Research in Biomedine (S.C., H.-K.Y.); and Center for Shockwave Medicine and Tissue Engineering (H.-K.Y.), Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan; Department of Emergency Medicine, E-Da Hospital, I-Shou University School of Medicine for International Students, Kaohsiung, Taiwan (C.-K.S.); and Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan (H.-K.Y.)
| | - Pei-Hsun Sung
- Division of Cardiology, Department of Internal Medicine (Y.-L.C., S.-Y.C., H.-T.C., Y.-L.C., T.-H.H., Y.-Y.Z., P.-H.S., S.C., H.-K.Y.); Division of General Medicine, Department of Internal Medicine (C.-H.C.); Department of Emergency Medicine (C.-F.L.); Division of Thoracic and Cardiovascular Surgery, Department of Surgery (H.-I.L., F.-Y.L., J.-J.S.); Institute for Translational Research in Biomedine (S.C., H.-K.Y.); and Center for Shockwave Medicine and Tissue Engineering (H.-K.Y.), Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan; Department of Emergency Medicine, E-Da Hospital, I-Shou University School of Medicine for International Students, Kaohsiung, Taiwan (C.-K.S.); and Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan (H.-K.Y.)
| | - Cheuk-Kwan Sun
- Division of Cardiology, Department of Internal Medicine (Y.-L.C., S.-Y.C., H.-T.C., Y.-L.C., T.-H.H., Y.-Y.Z., P.-H.S., S.C., H.-K.Y.); Division of General Medicine, Department of Internal Medicine (C.-H.C.); Department of Emergency Medicine (C.-F.L.); Division of Thoracic and Cardiovascular Surgery, Department of Surgery (H.-I.L., F.-Y.L., J.-J.S.); Institute for Translational Research in Biomedine (S.C., H.-K.Y.); and Center for Shockwave Medicine and Tissue Engineering (H.-K.Y.), Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan; Department of Emergency Medicine, E-Da Hospital, I-Shou University School of Medicine for International Students, Kaohsiung, Taiwan (C.-K.S.); and Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan (H.-K.Y.)
| | - Sarah Chua
- Division of Cardiology, Department of Internal Medicine (Y.-L.C., S.-Y.C., H.-T.C., Y.-L.C., T.-H.H., Y.-Y.Z., P.-H.S., S.C., H.-K.Y.); Division of General Medicine, Department of Internal Medicine (C.-H.C.); Department of Emergency Medicine (C.-F.L.); Division of Thoracic and Cardiovascular Surgery, Department of Surgery (H.-I.L., F.-Y.L., J.-J.S.); Institute for Translational Research in Biomedine (S.C., H.-K.Y.); and Center for Shockwave Medicine and Tissue Engineering (H.-K.Y.), Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan; Department of Emergency Medicine, E-Da Hospital, I-Shou University School of Medicine for International Students, Kaohsiung, Taiwan (C.-K.S.); and Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan (H.-K.Y.)
| | - Hung-I Lu
- Division of Cardiology, Department of Internal Medicine (Y.-L.C., S.-Y.C., H.-T.C., Y.-L.C., T.-H.H., Y.-Y.Z., P.-H.S., S.C., H.-K.Y.); Division of General Medicine, Department of Internal Medicine (C.-H.C.); Department of Emergency Medicine (C.-F.L.); Division of Thoracic and Cardiovascular Surgery, Department of Surgery (H.-I.L., F.-Y.L., J.-J.S.); Institute for Translational Research in Biomedine (S.C., H.-K.Y.); and Center for Shockwave Medicine and Tissue Engineering (H.-K.Y.), Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan; Department of Emergency Medicine, E-Da Hospital, I-Shou University School of Medicine for International Students, Kaohsiung, Taiwan (C.-K.S.); and Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan (H.-K.Y.)
| | - Fan-Yen Lee
- Division of Cardiology, Department of Internal Medicine (Y.-L.C., S.-Y.C., H.-T.C., Y.-L.C., T.-H.H., Y.-Y.Z., P.-H.S., S.C., H.-K.Y.); Division of General Medicine, Department of Internal Medicine (C.-H.C.); Department of Emergency Medicine (C.-F.L.); Division of Thoracic and Cardiovascular Surgery, Department of Surgery (H.-I.L., F.-Y.L., J.-J.S.); Institute for Translational Research in Biomedine (S.C., H.-K.Y.); and Center for Shockwave Medicine and Tissue Engineering (H.-K.Y.), Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan; Department of Emergency Medicine, E-Da Hospital, I-Shou University School of Medicine for International Students, Kaohsiung, Taiwan (C.-K.S.); and Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan (H.-K.Y.)
| | - Jiunn-Jye Sheu
- Division of Cardiology, Department of Internal Medicine (Y.-L.C., S.-Y.C., H.-T.C., Y.-L.C., T.-H.H., Y.-Y.Z., P.-H.S., S.C., H.-K.Y.); Division of General Medicine, Department of Internal Medicine (C.-H.C.); Department of Emergency Medicine (C.-F.L.); Division of Thoracic and Cardiovascular Surgery, Department of Surgery (H.-I.L., F.-Y.L., J.-J.S.); Institute for Translational Research in Biomedine (S.C., H.-K.Y.); and Center for Shockwave Medicine and Tissue Engineering (H.-K.Y.), Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan; Department of Emergency Medicine, E-Da Hospital, I-Shou University School of Medicine for International Students, Kaohsiung, Taiwan (C.-K.S.); and Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan (H.-K.Y.)
| | - Hon-Kan Yip
- Division of Cardiology, Department of Internal Medicine (Y.-L.C., S.-Y.C., H.-T.C., Y.-L.C., T.-H.H., Y.-Y.Z., P.-H.S., S.C., H.-K.Y.); Division of General Medicine, Department of Internal Medicine (C.-H.C.); Department of Emergency Medicine (C.-F.L.); Division of Thoracic and Cardiovascular Surgery, Department of Surgery (H.-I.L., F.-Y.L., J.-J.S.); Institute for Translational Research in Biomedine (S.C., H.-K.Y.); and Center for Shockwave Medicine and Tissue Engineering (H.-K.Y.), Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan; Department of Emergency Medicine, E-Da Hospital, I-Shou University School of Medicine for International Students, Kaohsiung, Taiwan (C.-K.S.); and Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan (H.-K.Y.)
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Coleman MA, Sasi SP, Onufrak J, Natarajan M, Manickam K, Schwab J, Muralidharan S, Peterson LE, Alekseyev YO, Yan X, Goukassian DA. Low-dose radiation affects cardiac physiology: gene networks and molecular signaling in cardiomyocytes. Am J Physiol Heart Circ Physiol 2015; 309:H1947-63. [PMID: 26408534 DOI: 10.1152/ajpheart.00050.2015] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Accepted: 09/03/2015] [Indexed: 01/22/2023]
Abstract
There are 160,000 cancer patients worldwide treated with particle radiotherapy (RT). With the advent of proton, and high (H) charge (Z) and energy (E) HZE ionizing particle RT, the cardiovascular diseases risk estimates are uncertain. In addition, future deep space exploratory-type missions will expose humans to unknown but low doses of particle irradiation (IR). We examined molecular responses using transcriptome profiling in left ventricular murine cardiomyocytes isolated from mice that were exposed to 90 cGy, 1 GeV proton ((1)H) and 15 cGy, 1 GeV/nucleon iron ((56)Fe) over 28 days after exposure. Unsupervised clustering analysis of gene expression segregated samples according to the IR response and time after exposure, with (56)Fe-IR showing the greatest level of gene modulation. (1)H-IR showed little differential transcript modulation. Network analysis categorized the major differentially expressed genes into cell cycle, oxidative responses, and transcriptional regulation functional groups. Transcriptional networks identified key nodes regulating expression. Validation of the signal transduction network by protein analysis and gel shift assay showed that particle IR clearly regulates a long-lived signaling mechanism for ERK1/2, p38 MAPK signaling and identified NFATc4, GATA4, STAT3, and NF-κB as regulators of the response at specific time points. These data suggest that the molecular responses and gene expression to (56)Fe-IR in cardiomyocytes are unique and long-lasting. Our study may have significant implications for the efforts of National Aeronautics and Space Administration to develop heart disease risk estimates for astronauts and for patients receiving conventional and particle RT via identification of specific HZE-IR molecular markers.
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Affiliation(s)
- Matthew A Coleman
- University of California, Davis School of Medicine, Radiation Oncology, Sacramento, California; Lawrence Livermore National Laboratory, Livermore, California
| | - Sharath P Sasi
- Cardiovascular Research Center, GeneSys Research Institute, Boston, Massachusetts
| | - Jillian Onufrak
- Cardiovascular Research Center, GeneSys Research Institute, Boston, Massachusetts
| | - Mohan Natarajan
- University of Texas Health Science Center, San Antonio, Texas
| | | | - John Schwab
- Cardiovascular Research Center, GeneSys Research Institute, Boston, Massachusetts
| | - Sujatha Muralidharan
- Cardiovascular Research Center, GeneSys Research Institute, Boston, Massachusetts
| | - Leif E Peterson
- Center for Biostatistics, Houston Methodist Research Institute, Houston, Texas
| | - Yuriy O Alekseyev
- Department of Pathology and Laboratory Medicine, Boston University School of Medicine, Boston, Massachusetts; and
| | - Xinhua Yan
- Cardiovascular Research Center, GeneSys Research Institute, Boston, Massachusetts; Tufts University School of Medicine, Boston, Massachusetts
| | - David A Goukassian
- Cardiovascular Research Center, GeneSys Research Institute, Boston, Massachusetts; Department of Pathology and Laboratory Medicine, Boston University School of Medicine, Boston, Massachusetts; and Tufts University School of Medicine, Boston, Massachusetts
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Wang X, Chen L, Wang T, Jiang X, Zhang H, Li P, Lv B, Gao X. Ginsenoside Rg3 antagonizes adriamycin-induced cardiotoxicity by improving endothelial dysfunction from oxidative stress via upregulating the Nrf2-ARE pathway through the activation of akt. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2015; 22:875-884. [PMID: 26321736 DOI: 10.1016/j.phymed.2015.06.010] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Revised: 05/26/2015] [Accepted: 06/15/2015] [Indexed: 06/04/2023]
Abstract
BACKGROUND Adriamycin (ADM) is an antineoplastic agent that is effective against a wide range of cancers, but cardiac toxicity limits its clinical application. Ginsenoside Rg3 (Rg3), an anti-cancer active ingredient of Panax ginseng, was reported to have anti-oxidative, anti-apoptotic, and cardioprotective properties. PURPOSE The current study aimed to investigate the possible protective effect of Rg3 against ADM-induced cardiotoxicity. STUDY DESIGN The activity of Rg3 to improve endothelial dysfunction was processed both in vivo and in vitro. METHODS We investigated the cardioprotective effect of Rg3 on ADM treated rats by echocardiography. The endothelial dysfunction was assessed using an aortic ring assay. Cardiac microvascular endothelial cells were cultured to investigate the effects of Rg3 on ADM-treated cells. RESULTS Results showed that Rg3 could ameliorate the decrease in the ejection fraction and fractional shortening that was induced by ADM, and improve the left ventricular outflow. The aortic ring assay showed that Rg3 could partially recover the abnormal vascular function. In vitro studies showed that Rg3 could promote cell viability to attenuate ADM induced oxidative damage and apoptosis. This counteraction was achieved partially via activation of the Nrf2-ARE pathway through the activation of Akt. CONCLUSION These findings elucidated the potential of Rg3 as a promising reagent for treating ADM-induced cardiotoxicity in clinic.
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Affiliation(s)
- Xiaoying Wang
- College of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China; State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
| | - Lili Chen
- State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
| | - Ting Wang
- State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
| | - Xiaoqing Jiang
- State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
| | - Han Zhang
- State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
| | - Pan Li
- State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
| | - Bin Lv
- State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
| | - Xiumei Gao
- State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China.
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Yao H, Shang Z, Wang P, Li S, Zhang Q, Tian H, Ren D, Han X. Protection of Luteolin-7-O-Glucoside Against Doxorubicin-Induced Injury Through PTEN/Akt and ERK Pathway in H9c2 Cells. Cardiovasc Toxicol 2015; 16:101-10. [DOI: 10.1007/s12012-015-9317-z] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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LEE DOHYUNG, KIM SOYOUNG, NAM KYUNGSOO. Protective effects of deep sea water against doxorubicin-induced cardiotoxicity in H9c2 cardiac muscle cells. Int J Oncol 2014; 45:2569-75. [DOI: 10.3892/ijo.2014.2666] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Accepted: 09/01/2014] [Indexed: 11/05/2022] Open
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Abstract
The suppressors of cytokine signaling (SOCS) family of proteins are cytokine-inducible inhibitors of Janus kinase (JAK)-signal transducer and activator of the transcription (STAT) signaling pathways. Among the family, SOCS1 and SOCS3 potently suppress cytokine actions by inhibiting JAK kinase activities. The generation of mice lacking individual SOCS genes has been instrumental in defining the role of individual SOCS proteins in specific cytokine pathways in vivo; SOCS1 is an essential negative regulator of interferon-γ (IFNγ) and SOCS3 is an essential negative regulator of leukemia inhibitory factor (LIF). JAK-STAT3 activating cytokines have exhibited cardioprotective roles in the heart. The cardiac-specific deletion of SOCS3 enhances the activation of cardioprotective signaling pathways, inhibits myocardial apoptosis and fibrosis and results in the inhibition of left ventricular remodeling after myocardial infarction (MI). We propose that myocardial SOCS3 is a key determinant of left ventricular remodeling after MI, and SOCS3 may serve as a novel therapeutic target to prevent left ventricular remodeling after MI. In this review, we discuss the signaling pathways mediated by JAK-STAT and SOCS proteins and their roles in the development of myocardial injury under stress (e.g., pressure overload, viral infection and ischemia).
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Affiliation(s)
- Hideo Yasukawa
- Division of Cardiovascular Medicine; Department of Internal Medicine; Kurume University School of Medicine; Kurume, Japan ; Cardiovascular Research Institute; Kurume University School of Medicine; Kurume, Japan
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Gungorduk K, Ertas IE, Sahbaz A, Ozvural S, Sarica Y, Ozdemir A, Sayhan S, Gokcu M, Yilmaz B, Sanci M, Inan S, Harma M, Yildirim Y. Immunolocalization of ERK1/2 and p-AKT in normal endometrium, endometrial hyperplasia, and early and advanced stage endometrioid endometrial adenocancer and their prognostic significance in malignant group. Eur J Obstet Gynecol Reprod Biol 2014; 179:147-52. [PMID: 24965996 DOI: 10.1016/j.ejogrb.2014.05.040] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2014] [Revised: 05/11/2014] [Accepted: 05/28/2014] [Indexed: 11/17/2022]
Abstract
OBJECTIVE To analyze the expression patterns of extracellular signal-regulated kinase (ERK1/2) and phosphorylated (p)-AKT in the tissues of non-pathologic endometrium, endometrial hyperplasia, and early and advanced stage endometrioid endometrial adenocancer using indirect immunohistochemistry, and also to investigate the effect of ERK1/2 and p-AKT expression patterns on prognosis in endometrioid adenocancer. STUDY DESIGN Immunolocalization of ERK1/2 and p-AKT was examined in six different types of endometrial tissues: proliferative endometrium (PE; n=10, 11.2%), secretuar endometrium (SE; n=10, 11.2%), simple hyperplasia (SH; n=15, 16.9%), complex hyperplasia (CH; n=3, 3.4%) and atypical complex hyperplasia (ACH; n=10, 11.2%), which were obtained from endometrial biopsies, curettage materials, and hysterectomy specimens and classified as the benign group; and both early stage endometrioid (n=21, 23.6%) and advanced stage endometrioid adenocancer (AC; n=20, 22.5%), which were obtained from complete surgical staging materials and classified as the malignant group. All specimens were fixed in 10% formalin and processed using routine paraffin protocols. Immunostaining intensities were evaluated as negative or weak (assigned as low expression) and moderate or strong (assigned as high expression). RESULTS In the malignant group, 23 of 41 patients (56.1%) had high ERK1/2 and p-AKT expression, whereas only three of 48 patients in the benign group (6.3%) had high ERK1/2 and p-AKT expression (P<0.0001 and P<0.0001, respectively). p-AKT expression was significantly higher in women with positive lymph nodes (OR 9.0; 95% CI: 1.2-100.0; P=0.03). Higher expression of p-AKT was significantly associated with poor progression-free survival (PFS) and overall survival (OS). In contrast, ERK1/2 expression was not associated with PFS or OS.Conclusions ERK1/2 and p-AKT can be useful in the differential diagnosis of benign vs. malignant endometrial lesions, as well as early vs. advanced stage endometrioid endometrial adenocancer. Additionally, higher p-AKT expression could be used as a marker of poor prognosis in the management of patients with endometrioid endometrial adenocancer.
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Affiliation(s)
- Kemal Gungorduk
- Department of Gynecologic Oncology, Tepecik Education and Research Hospital, Izmir, Turkey
| | - Ibrahim Egemen Ertas
- Department of Obstetrics and Gynecology, Tepecik Education and Research Hospital, Izmir, Turkey.
| | - Ahmet Sahbaz
- Department of Obstetrics and Gynecology, Bulent Ecevit University, School of Medicine, Zonguldak, Turkey
| | - Seyfettin Ozvural
- Department of Gynecologic Oncology, Tepecik Education and Research Hospital, Izmir, Turkey
| | - Yagmur Sarica
- Department of Histology and Embryology, Celal Bayar University, School of Medicine, Manisa, Turkey
| | - Aykut Ozdemir
- Department of Gynecologic Oncology, Tepecik Education and Research Hospital, Izmir, Turkey
| | - Sevil Sayhan
- Department of Pathology, Tepecik Education and Research Hospital, Izmir, Turkey
| | - Mehmet Gokcu
- Department of Gynecologic Oncology, Tepecik Education and Research Hospital, Izmir, Turkey
| | - Bulent Yilmaz
- Department of Obstetrics and Gynecology, Tepecik Education and Research Hospital, Izmir, Turkey
| | - Muzaffer Sanci
- Department of Gynecologic Oncology, Tepecik Education and Research Hospital, Izmir, Turkey
| | - Sevinc Inan
- Department of Histology and Embryology, Celal Bayar University, School of Medicine, Manisa, Turkey
| | - Mehmet Harma
- Department of Obstetrics and Gynecology, Bulent Ecevit University, School of Medicine, Zonguldak, Turkey
| | - Yusuf Yildirim
- Department of Gynecologic Oncology, Tepecik Education and Research Hospital, Izmir, Turkey
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Omentin Prevents Myocardial Ischemic Injury Through AMP-Activated Protein Kinase- and Akt-Dependent Mechanisms. J Am Coll Cardiol 2014; 63:2722-33. [DOI: 10.1016/j.jacc.2014.03.032] [Citation(s) in RCA: 122] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2014] [Revised: 03/03/2014] [Accepted: 03/04/2014] [Indexed: 11/17/2022]
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A mutually beneficial relationship between hepatocytes and cardiomyocytes mitigates doxorubicin-induced toxicity. Toxicol Lett 2014; 227:157-63. [PMID: 24742701 DOI: 10.1016/j.toxlet.2014.04.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2014] [Revised: 04/05/2014] [Accepted: 04/07/2014] [Indexed: 12/13/2022]
Abstract
Use of doxorubicin (DOX) is limited by its toxicity in multiple organs. However, the relationship between different organs in response to DOX-induced injury is not well understood. We found that partial hepatectomy correlated with increased DOX-induced heart injury in vivo while supernatant prepared from DOX-treated hepatocytes mitigated DOX-induced cytotoxicity of cardiomyocytes in vitro. Meanwhile, the supernatant of DOX-treated cardiomyocytes mitigated DOX-induced cytotoxicity of hepatocytes. Investigation of the molecular mechanisms underlying these effects found that interleukin 6 (IL-6) was significantly up-regulated in DOX-treated tissues and cells, and supernatant from IL-6 treated cells had a similar effect to that from DOX-treated cells. Although the concentration of secreted IL-6 in supernatant from DOX-treated cells did not significantly differ, blockade of IL-6 signaling, by overexpressing SOCS3, suppressed expression of the downstream molecules trefoil factor family 3 (TFF3) and hepatocyte growth factor (HGF), impaired the mutually beneficial relationship between hepatocytes and cardiomyocytes. In conclusion, our study shows that a mutually beneficial relationship exists between hepatocytes and cardiomyocytes during the acute injury induced by DOX. Moreover, it demonstrates that this phenomenon may be indirectly caused by increased IL-6 expression and the activation of the downstream molecular mediators TFF3 and HGF in hepatocytes and cardiomyocytes, respectively.
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Andreadou I, Mikros E, Ioannidis K, Sigala F, Naka K, Kostidis S, Farmakis D, Tenta R, Kavantzas N, Bibli SI, Gikas E, Skaltsounis L, Kremastinos DT, Iliodromitis EK. Oleuropein prevents doxorubicin-induced cardiomyopathy interfering with signaling molecules and cardiomyocyte metabolism. J Mol Cell Cardiol 2014; 69:4-16. [DOI: 10.1016/j.yjmcc.2014.01.007] [Citation(s) in RCA: 82] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2013] [Revised: 01/16/2014] [Accepted: 01/19/2014] [Indexed: 11/30/2022]
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Chan KYY, Xiang P, Zhou L, Li K, Ng PC, Wang CC, Zhang L, Deng HY, Pong NH, Zhao H, Chan WY, Sung RYT. Thrombopoietin protects against doxorubicin-induced cardiomyopathy, improves cardiac function, and reversely alters specific signalling networks. Eur J Heart Fail 2014; 13:366-76. [DOI: 10.1093/eurjhf/hfr001] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Kathy Yuen-Yee Chan
- Department of Paediatrics; The Chinese University of Hong Kong; Hong Kong China
| | - Ping Xiang
- Department of Cardiology; Children's Hospital of Chongqing Medical University; Chongqing China
| | - Ligang Zhou
- Department of Cardiology; Children's Hospital of Chongqing Medical University; Chongqing China
| | - Karen Li
- Department of Paediatrics; The Chinese University of Hong Kong; Hong Kong China
- Li Ka Shing Institute of Health Sciences; The Chinese University of Hong Kong; Hong Kong
| | - Pak-Cheung Ng
- Department of Paediatrics; The Chinese University of Hong Kong; Hong Kong China
| | - Chi-Chiu Wang
- Li Ka Shing Institute of Health Sciences; The Chinese University of Hong Kong; Hong Kong
- Department of Obstetrics & Gynaecology; The Chinese University of Hong Kong; Hong Kong
| | - Lei Zhang
- Department of Paediatrics; The Chinese University of Hong Kong; Hong Kong China
| | - Hai-Yan Deng
- Department of Cardiology; Children's Hospital of Fudan University; Shanghai China
| | - Nga-Hin Pong
- Department of Paediatrics; The Chinese University of Hong Kong; Hong Kong China
| | - Hailu Zhao
- Department of Medicine and Therapeutics; The Chinese University of Hong Kong; Hong Kong
| | - Wood-Yee Chan
- Department of Anatomy; The Chinese University of Hong Kong; Hong Kong
| | - Rita Yn-Tz Sung
- Department of Paediatrics; The Chinese University of Hong Kong; Hong Kong China
- Li Ka Shing Institute of Health Sciences; The Chinese University of Hong Kong; Hong Kong
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Abstract
Multiple studies have shown that the cytokine leukemia inhibitory factor (LIF) is protective of the myocardium in the acute stress of ischemia-reperfusion. All three major intracellular signaling pathways that are activated by LIF in cardiac myocytes have been linked to actions that protect against oxidative stress and cell death, either at the level of the mitochondrion or via nuclear transcription. In addition, LIF has been shown to contribute to post-myocardial infarction cardiac repair and regeneration, by stimulating the homing of bone marrow-derived cardiac progenitors to the injured myocardium, the differentiation of resident cardiac stem cells into endothelial cells, and neovascularization. Whether LIF offers protection to the heart under chronic stress such as hypertension-induced cardiac remodeling and heart failure is not known. However, mice with cardiac myocyte restricted knockout of STAT3, a principal transcription factor activated by LIF, develop heart failure with age, and cardiac STAT3 levels are reported to be decreased in heart failure patients. In addition, endogenously produced LIF has been implicated in the cholinergic transdiffrentiation that may serve to attenuate sympathetic overdrive in heart failure and in the peri-infarct region of the heart after myocardial infarction. Surprisingly, therapeutic strategies to exploit the beneficial actions of LIF on the injured myocardium have received scant attention. Nor is it established whether the purported so-called adverse effects of LIF observed in isolated cardiac myocytes have physiological relevance in vivo. Here we present an overview of the actions of LIF in the heart with the goal of stimulating further research into the translational potential of this pleiotropic cytokine.
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Zgheib C, Zouein FA, Kurdi M, Booz GW. Differential STAT3 signaling in the heart: Impact of concurrent signals and oxidative stress. JAKSTAT 2013; 1:101-10. [PMID: 23904970 PMCID: PMC3670289 DOI: 10.4161/jkst.19776] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Multiple lines of evidence suggest that the transcription factor STAT3 is linked to a protective and reparative response in the heart. Thus, increasing duration or intensity of STAT3 activation ought to minimize damage and improve heart function under conditions of stress. Two recent studies using genetic mouse models, however, report findings that appear to refute this proposition. Unfortunately, studies often approach the question of the role of STAT3 in the heart from the perspective that all STAT3 signaling is equivalent, particularly when it comes to signaling by IL-6 type cytokines, which share the gp130 signaling protein. Moreover, STAT3 activation is typically equated with phosphorylation of a critical tyrosine residue. Yet, STAT3 transcriptional behavior is subject to modulation by serine phosphorylation, acetylation, and redox status of the cell. Unphosphorylated STAT3 is implicated in gene induction as well. Thus, how STAT3 is activated and also what other signaling events are occurring at the same time is likely to impact on the outcome ultimately linked to STAT3. Notably STAT3 may serve as a scaffold protein allowing it to interact with other singling pathways. In this context, canonical gp130 cytokine signaling may function to integrate STAT3 signaling with a protective PI3K/AKT signaling network via mutual involvement of JAK tyrosine kinases. Differences in the extent of integration may occur between those cytokines that signal through gp130 homodimers and those through heterodimers of gp130 with a receptor α chain. Signal integration may have importance not only for deciding the particular gene profile linked to STAT3, but for the newly described mitochondrial stabilization role of STAT3 as well. In addition, disruption of integrated gp130-related STAT3 signaling may occur under conditions of oxidative stress, which negatively impacts on JAK catalytic activity. For these reasons, understanding the importance of STAT3 signaling to heart function requires a greater appreciation of the plasticity of this transcription factor in the context in which it is investigated.
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Affiliation(s)
- Carlos Zgheib
- Department of Pharmacology and Toxicology; School of Medicine; and the Center for Excellence in Cardiovascular-Renal Research; The University of Mississippi Medical Center; Jackson, MS USA
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Chronic treatment of mice with leukemia inhibitory factor does not cause adverse cardiac remodeling but improves heart function. Eur Cytokine Netw 2013; 23:191-7. [PMID: 23291613 DOI: 10.1684/ecn.2012.0319] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Recent evidence suggests that the IL-6 family cytokine, leukemia inhibitory factor (LIF) is produced by cardiac cells under stress conditions including myocardial infarction and heart failure. Additionally, short-term delivery of LIF has been shown to have preconditioning effects on the heart and to limit infarct size. However, cell culture studies have suggested that LIF may exert harmful effects on cardiac myocytes, including pathological hypertrophy and contractile dysfunction. Long-term effects of LIF on the heart in vivo have not been reported and were the focus of this study. Adult male mice were injected daily with LIF (2 μg/30 g) or saline for 10 days. LIF treatment caused an approximate 11% loss in body weight. Cardiac function as assessed by echocardiography was improved in LIF-treated mice. Ejection fraction and fractional shortening were increased by 21% and 32%, respectively. No cardiac hypertrophy was seen on histology in LIF-treated mice,, there was no change in the heart-to-tibia length ratio, and no cardiac fibrosis was observed. STAT3 was markedly activated by LIF in the left ventricle. Different effects of LIF were seen in protein levels of genes associated with STAT3 in the left ventricle: levels of SOD2 and Bcl-xL were unchanged, but levels of total STAT3 and MCP-1 were increased. There was a trend towards increased expression of miR-17, miR-21, and miR-199 in the left ventricle of LIF-treated mice, but these changes were not statistically significant. In conclusion, effects of chronic LIF treatment on the heart, although modest, were positive for systolic function: adverse cardiac remodeling was not observed. Our findings thus lend further support to recent proposals that LIF may have therapeutic utility in preventing injury to or repairing the myocardium.
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Han Y, Xu J, Li Z, Yang Z. Neuroprotective effect of leukemia inhibitory factor on antimycin A-induced oxidative injury in differentiated PC12 cells. J Mol Neurosci 2013; 50:577-85. [PMID: 23636893 DOI: 10.1007/s12031-013-0004-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2012] [Accepted: 03/11/2013] [Indexed: 12/25/2022]
Abstract
As a neurotrophic cytokine, leukemia inhibitory factor (LIF) has neuroendocrine effects and exerts neuroprotective effects on various neuron injuries both in vitro and in vivo. The aim of the present study was to investigate whether LIF can protect PC12 cells from antimycin A (AMA)-induced oxidative stress. LIF (0.5 and 1 ng/ml) increased PC12 cell viability and significantly attenuated AMA-induced cell death as demonstrated by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. Results from Hoechst 33342 staining and flow cytometry assay showed that AMA induced apoptosis significantly in PC12 cells, while pretreatment with LIF (0.5 and 1 ng/ml) can attenuate this injury. The presence of LIF partly prevented AMA-induced elevated reactive oxygen species level and decreased superoxide dismutase level, which indicated the antioxidative effects of LIF on the neuron oxidative injury. In conclusion, LIF might protect PC12 cells from the injury induced by AMA through the downregulation of oxidative stress, which may provide basic information of using LIF as a potential targeted therapy for oxidative injury in neurons.
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Affiliation(s)
- Yangguang Han
- College of Medicine, Nankai University, Tianjin, 300071, China
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Wang Y, Zheng D, Wei M, Ma J, Yu Y, Chen R, Lacefield JC, Xu H, Peng T. Over-expression of calpastatin aggravates cardiotoxicity induced by doxorubicin. Cardiovasc Res 2013; 98:381-90. [PMID: 23455548 DOI: 10.1093/cvr/cvt048] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
AIMS Doxorubicin causes damage to the heart, which may present as cardiomyopathy. However, the mechanisms by which doxorubicin induces cardiotoxicity remain not fully understood and no effective prevention for doxorubicin cardiomyopathy is available. Calpains, a family of calcium-dependent thiol-proteases, have been implicated in cardiovascular diseases. Their activities are tightly controlled by calpastatin. This study employed transgenic mice over-expressing calpastatin to investigate the role of calpain in doxorubicin-induced cardiotoxicity. METHODS AND RESULTS Doxorubicin treatment decreased calpain activities in cultured neonatal mouse cardiomyocytes and in vivo mouse hearts, which correlated with down-regulation of calpain-1 and calpain-2 proteins. Over-expression of calpastatin or incubation with pharmacological calpain inhibitors enhanced apoptosis in neonatal and adult cardiomyocytes induced by doxorubicin. In contrast, over-expression of calpain-2 but not calpain-1 attenuated doxorubicin-induced apoptosis in cardiomyocytes. The pro-apoptotic effects of calpain inhibition were associated with down-regulation of protein kinase B (AKT) protein and mRNA expression, and a concomitant reduction in glycogen synthase kinase-3beta (GSK-3β) phosphorylation (Ser9) in doxorubicin-treated cardiomyocytes. Blocking AKT further increased doxorubicin-induced cardiac injuries, suggesting the effects of calpain inhibition may be mediated by inactivating the AKT signalling. In an in vivo model of doxorubicin-induced cardiotoxicity, over-expression of calpastatin exacerbated myocardial dysfunction as assessed by echocardiography and haemodynamic measurement in transgenic mice 5 days after doxorubicin injection. The 5-day mortality was higher in transgenic mice (29.16%) compared with their wild-type littermates (8%) after doxorubicin treatment. CONCLUSION Over-expression of calpastatin enhances doxorubicin-induced cardiac injuries through calpain inhibition and thus, calpains may protect cardiomyocytes against doxorubicin-induced cardiotoxicity.
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Affiliation(s)
- Yanpeng Wang
- Department of Cardiology, Shanghai 6th People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200233, China
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Fahmi A, Smart N, Punn A, Jabr R, Marber M, Heads R. p42/p44-MAPK and PI3K are sufficient for IL-6 family cytokines/gp130 to signal to hypertrophy and survival in cardiomyocytes in the absence of JAK/STAT activation. Cell Signal 2012; 25:898-909. [PMID: 23268184 PMCID: PMC3627957 DOI: 10.1016/j.cellsig.2012.12.008] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2012] [Accepted: 12/18/2012] [Indexed: 01/24/2023]
Abstract
The effect of differential signalling by IL-6 and leukaemia inhibitory factor (LIF) which signal by gp130 homodimerisation or LIFRβ/gp130 heterodimerisation on survival and hypertrophy was studied in neonatal rat cardiomyocytes. Both LIF and IL-6 [in the absence of soluble IL-6 receptor (sIL-6Rα)] activated Erk1/2, JNK1/2, p38-MAPK and PI3K signalling peaking at 20 min and induced cytoprotection against simulated ischemia-reperfusion injury which was blocked by the MEK1/2 inhibitor PD98059 but not the p38-MAPK inhibitor SB203580. In the absence of sIL-6R, IL-6 did not induce STAT1/3 phosphorylation, whereas IL-6/sIL-6R and LIF induced STAT1 and STAT3 phosphorylation. Furthermore, IL-6/sIL-6R induced phosphorylation of STAT1 Tyr701 and STAT3 Tyr705 were enhanced by SB203580. IL-6 and pheneylephrine (PE), but not LIF, induced cardiomyocyte iNOS expression and nitric oxide (NO) production. IL-6, LIF and PE induced cardiomyocyte hypertrophy, but with phenotypic differences in ANF and SERCA2 expression and myofilament organisation with IL-6 more resembling PE than LIF. Transfection of cardiomyocytes with full length or truncated chimaeric gp130 cytoplasmic domain/Erythropoietin receptor (EpoR) extracellular domain fusion constructs showed that the membrane proximal Box 1 and Box 2 containing region of gp130 was necessary and sufficient for MAPK and PI3K activation; hypertrophy; SERCA2 expression and iNOS/NO induction in the absence of JAK/STAT activation. In conclusion, IL-6 can signal in cardiomyocytes independent of sIL-6R and STAT1/3 and furthermore, that Erk1/2 and PI3K activation by IL-6 are both necessary and sufficient for induced cardioprotection. In addition, p38-MAPK may act as a negative feedback regulator of JAK/STAT activation in cardiomyocytes.
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Affiliation(s)
- Ahmed Fahmi
- King's College London, British Heart Foundation Centre of Research Excellence, Cardiovascular Division, School of Medicine, UK
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Ren R, Oakley RH, Cruz-Topete D, Cidlowski JA. Dual role for glucocorticoids in cardiomyocyte hypertrophy and apoptosis. Endocrinology 2012; 153:5346-60. [PMID: 22989630 PMCID: PMC3473206 DOI: 10.1210/en.2012-1563] [Citation(s) in RCA: 88] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Glucocorticoids and their synthetic derivatives are known to alter cardiac function in vivo; however, the nature of these effects and whether glucocorticoids act directly on cardiomyocytes are poorly understood. To explore the role of glucocorticoid signaling in the heart, we used rat embryonic H9C2 cardiomyocytes and primary cardiomyocytes as model systems. Dexamethasone (100 nm) treatment of cardiomyocytes caused a significant increase in cell size and up-regulated the expression of cardiac hypertrophic markers, including atrial natriuretic factor, β-myosin heavy chain, and skeletal muscle α-actin. In contrast, serum deprivation and TNFα exposure triggered cardiomyocyte apoptosis, and these apoptotic effects were inhibited by dexamethasone. Both the hypertrophic and anti-apoptotic actions of glucocorticoids were abolished by the glucocorticoid receptor (GR) antagonist RU486 and by short hairpin RNA-mediated GR depletion. Blocking the activity of the mineralocorticoid receptor had no effect on these glucocorticoid-dependent cardiomyocyte responses. Aldosterone (1 μm) activation of GR also promoted cardiomyocyte hypertrophy and cell survival. To elucidate the mechanism of the dual glucocorticoid actions, a genome-wide microarray was performed on H9C2 cardiomyocytes treated with vehicle or dexamethasone in the absence or presence of serum. Serum dramatically influenced the transcriptome regulated by GR, revealing potential glucocorticoid signaling mediators in both cardiomyocyte hypertrophy and apoptosis. These studies reveal a direct and dynamic role for glucocorticoids and GR signaling in the modulation of cardiomyocyte function.
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Affiliation(s)
- Rongqin Ren
- Molecular Endocrinology Group, Laboratory of Signal Transduction, National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, Research Triangle Park, North Carolina 27709, USA
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Xu J, Li Z, Xu P, Yang Z. Protective effects of leukemia inhibitory factor against oxidative stress during high glucose-induced apoptosis in podocytes. Cell Stress Chaperones 2012; 17:485-93. [PMID: 22270613 PMCID: PMC3368028 DOI: 10.1007/s12192-012-0325-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2011] [Revised: 01/05/2012] [Accepted: 01/06/2012] [Indexed: 02/01/2023] Open
Abstract
Leukemia inhibitory factor (LIF) is a pleiotropic glycoprotein belonging to the interleukin-6 family of cytokines. In kidney, LIF regulates nephrogenesis, involves in tubular regeneration, responds to pro- and anti-inflammatory stimuli, and so on. LIF also plays an essential role in protective mechanisms triggered by preconditioning-induced oxidative stress. Although LIF shows a wide range of biologic activities, effects of LIF on high glucose-induced oxidative stress in podocytes remain unclear. The aim of the study was to assess whether LIF can attenuate high glucose-induced apoptosis in podocytes. The result of 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay indicated that LIF protected podocytes against high glucose-induced cytotoxicity. The flow cytometry assay showed that LIF attenuated high glucose-induced apoptosis in podocytes. Meanwhile, the result of flow cytometric assay gave the clear indication that LIF decreased high glucose-induced elevated level of reactive oxygen species (ROS). The measurement of nicotinamide adenine dinucleotide phosphate (NADPH) oxidase, superoxide dismutase (SOD), malondialdehyde (MDA), and caspase-3 activity levels showed that LIF attenuated the high glucose-induced decreased level of SOD and elevated level of NADPH oxidase, MDA and caspase-3 activity. These results may provide potential therapy for diabetic nephropathy in the future.
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Affiliation(s)
- Jing Xu
- College of Medicine, Nankai University, Tianjin, 300071 China
| | - Zhigui Li
- College of Medicine, Nankai University, Tianjin, 300071 China
| | - Pengjuan Xu
- College of Medicine, Nankai University, Tianjin, 300071 China
| | - Zhuo Yang
- College of Medicine, Nankai University, Tianjin, 300071 China
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Della Pina P, Vizzardi E, Raddino R, Gavazzoni M, Caretta G, Gorga E, Dei Cas L. Biological Drugs: Classic Adverse Effects and New Clinical Evidences. Cardiovasc Toxicol 2012; 12:285-97. [DOI: 10.1007/s12012-012-9173-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Sun D, Huang J, Zhang Z, Gao H, Li J, Shen M, Cao F, Wang H. Luteolin limits infarct size and improves cardiac function after myocardium ischemia/reperfusion injury in diabetic rats. PLoS One 2012; 7:e33491. [PMID: 22432030 PMCID: PMC3303839 DOI: 10.1371/journal.pone.0033491] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2011] [Accepted: 02/15/2012] [Indexed: 01/06/2023] Open
Abstract
Background The present study was to investigate the effects and mechanism of Luteolin on myocardial infarct size, cardiac function and cardiomyocyte apoptosis in diabetic rats with myocardial ischemia/reperfusion (I/R) injury. Methodology/Principal Findings Diabetic rats underwent 30 minutes of ischemia followed by 3 h of reperfusion. Animals were pretreated with or without Luteolin before coronary artery ligation. The severity of myocardial I/R induced LDH release, arrhythmia, infarct size, cardiac function impairment, cardiomyocyte apoptosis were compared. Western blot analysis was performed to elucidate the target proteins of Luteolin. The inflammatory cytokine production were also examined in ischemic myocardium underwent I/R injury. Our results revealed that Luteolin administration significantly reduced LDH release, decreased the incidence of arrhythmia, attenuated myocardial infarct size, enhanced left ventricular ejection fraction and decreased myocardial apoptotic death compared with I/R group. Western blot analysis showed that Luteolin treatment up-regulated anti-apoptotic proteins FGFR2 and LIF expression, increased BAD phosphorylation while decreased the ratio of Bax to Bcl-2. Luteolin treatment also inhibited MPO expression and inflammatory cytokine production including IL-6, IL-1a and TNF-a. Moreover, co-administration of wortmannin and Luteolin abolished the beneficial effects of Luteolin. Conclusions/Significance This study indicates that Luteolin preserves cardiac function, reduces infarct size and cardiomyocyte apoptotic rate after I/R injury in diabetic rats. Luteolin exerts its action by up-regulating of anti-apoptotic proteins FGFR2 and LIF expression, activating PI3K/Akt pathway while increasing BAD phosphorylation and decreasing ratio of Bax to Bcl-2.
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MESH Headings
- Animals
- Apoptosis/drug effects
- Arrhythmias, Cardiac/complications
- Arrhythmias, Cardiac/pathology
- Arrhythmias, Cardiac/physiopathology
- Arrhythmias, Cardiac/prevention & control
- Cell Movement/drug effects
- Cytokines/metabolism
- Diabetes Mellitus, Experimental/complications
- Diabetes Mellitus, Experimental/diagnostic imaging
- Diabetes Mellitus, Experimental/physiopathology
- Heart Function Tests/drug effects
- L-Lactate Dehydrogenase/metabolism
- Leukocytes/drug effects
- Leukocytes/pathology
- Luteolin/pharmacology
- Luteolin/therapeutic use
- Male
- Myocardial Infarction/diagnostic imaging
- Myocardial Infarction/drug therapy
- Myocardial Infarction/pathology
- Myocardial Infarction/physiopathology
- Myocardial Reperfusion Injury/complications
- Myocardial Reperfusion Injury/diagnostic imaging
- Myocardial Reperfusion Injury/drug therapy
- Myocardial Reperfusion Injury/physiopathology
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/pathology
- Rats
- Rats, Sprague-Dawley
- Ultrasonography
- Ventricular Function, Left/drug effects
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Affiliation(s)
- Dongdong Sun
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
- * E-mail: (DS); (HW)
| | | | | | | | | | | | | | - Haichang Wang
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
- * E-mail: (DS); (HW)
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Fujio Y, Maeda M, Mohri T, Obana M, Iwakura T, Hayama A, Yamashita T, Nakayama H, Azuma J. Glycoprotein 130 cytokine signal as a therapeutic target against cardiovascular diseases. J Pharmacol Sci 2011; 117:213-22. [PMID: 22056652 DOI: 10.1254/jphs.11r05cr] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022] Open
Abstract
Postnatal cardiomyocytes have only limited capacity of proliferation. Therefore, the myocardium is intrinsically equipped with cardioprotective machineries and protects itself from pathological stresses. One of the most important cardioprotective systems is the signal network of autocrine/paracrine factors, including neurohumoral factors, growth factors, and cytokines. In this review, we focus on the roles of interleukin-6 (IL-6) family cytokines, also known as glycoprotein 130 (gp130) cytokines, in cardioprotection. These cytokines make a complex with their specific cytokine receptor α-subunits. The cytokine-receptor α-subunit complex binds to gp130, a common receptor of the IL-6 family, followed by the activation of JAK/STAT, ERK, and PI3 kinase/Akt pathways. In cardiomyocytes, signals through gp130 promote cell survival and angiogenesis through the JAK/STAT pathway. Activation of gp130 in cardiac stem cells induces their endothelial transdifferentiation, leading to neovascularization. Recently, accumulating evidence has revealed that altered JAK/STAT activity is associated with heart failure, suggesting that the JAK/STAT pathway is a therapeutic target against cardiovascular diseases. Interestingly, activation of the JAK/STAT pathway with interleukin-11 (IL-11) exhibits preconditioning effects in ischemia/reperfusion model. Moreover, IL-11 treatment after coronary ligation prevents cardiac remodeling through the JAK/STAT pathway. Since IL-11 is used for patients with thrombocytopenia, we propose that IL-11 is a candidate cytokine clinically available for cardioprotection therapy.
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Affiliation(s)
- Yasushi Fujio
- Laboratory of Clinical Science and Biomedicine, Graduate School of Pharmaceutical Sciences, Osaka University, Japan.
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Akt regulates IL-10 mediated suppression of TNFα-induced cardiomyocyte apoptosis by upregulating Stat3 phosphorylation. PLoS One 2011; 6:e25009. [PMID: 21949832 PMCID: PMC3176791 DOI: 10.1371/journal.pone.0025009] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2011] [Accepted: 08/22/2011] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND We have already reported that TNF-α increases cardiomyocyte apoptosis and IL-10 treatment prevented these effects of TNF-α. Present study investigates the role of Akt and Jak/Stat pathway in the IL-10 modulation of TNF-α induced cardiomyocyte apoptosis. METHODOLOGY/PRINCIPAL FINDINGS Cardiomyocytes isolated from adult Sprague Dawley rats were exposed to TNF-α (10 ng/ml), IL-10 (10 ng/ml) and TNF-α+IL-10 (ratio 1) for 4 h. Exposure to TNF-α resulted in an increase in cardiomyocyte apoptosis as measured by flow cytometry and TUNEL assay. IL-10 by itself had no effect, but it prevented TNF-α induced apoptosis. IL-10 treatment increased Akt levels within cardiomyocytes and this change was associated with an increase in Jak1 and Stat3 phosphorylation. Pre-exposure of cells to Akt inhibitor prevented IL-10 induced Stat3 phosphorylation. Furthermore, in the presence of Akt or Stat3 inhibitor, IL-10 treatment was unable to block TNF-α induced cardiomyocyte apoptosis. CONCLUSION It is suggested that IL-10 modulation of TNF-α induced cardiomyocyte apoptosis is mediated by Akt via Stat3 activation.
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Chen S, Liu J, Liu X, Fu Y, Zhang M, Lin Q, Zhu J, Mai L, Shan Z, Yu X, Yang M, Lin S. Panax notoginseng saponins inhibit ischemia-induced apoptosis by activating PI3K/Akt pathway in cardiomyocytes. JOURNAL OF ETHNOPHARMACOLOGY 2011; 137:263-270. [PMID: 21619920 DOI: 10.1016/j.jep.2011.05.011] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2011] [Revised: 05/10/2011] [Accepted: 05/11/2011] [Indexed: 05/30/2023]
Abstract
AIM OF THIS STUDY The panax notoginseng saponins (PNS) have been clinically used for the treatment of cardiovascular diseases and stroke in China. Evidences demonstrated that PNS could protect cardiomyocytes from injury induced by ischemia, but the underlying molecular mechanisms of this protective effect are still unclear. This study was aimed to investigate the protective effect and potential molecular mechanisms of PNS on apoptosis in H9c2 cells in vitro and rat myocardial ischemia injury model in vivo. MATERIALS AND METHODS H9c2 cells subjected to serum, glucose and oxygen deprivation (SGOD) were used as in vitro models and SD rats subjected to left anterior descending (LAD) coronary artery ligation were used as in vivo models. The anti-apoptotic effect of PNS was evaluated by Annexin V/PI analysis or TUNEL assay. Mitochondrial membrane potential (Δψm) was detected by JC-1 analysis. The expression of Akt and phosphorylated Akt (p-Akt) were detected by western blot assay. RESULTS PNS exhibited anti-apoptotic effect both in H9c2 cells and in ischemic myocardial tissues. However, the effect was blocked in vitro by LY294002, a specific PI3K inhibitor. The anti-apoptotic effect of PNS was mediated by stabilizing Δψm in H9c2 cells. Furthermore the indices of the left ventricular ejection fractions (EF), left ventricular fractional shortening (FS), left ventricular dimensions at end diastole (LVDd) and left ventricular dimensions at end systole (LVDs) suggested that PNS improved rats cardiac function. PNS significantly increased p-Akt both in H9c2 cells and in ischemic myocardial tissues and this effect was also blocked by LY294002 in H9c2 cells. CONCLUSION Results of this study suggested that PNS could protect myocardial cells from apoptosis induced by ischemia in both the in vitro and in vivo models through activating PI3K/Akt signaling pathway.
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Affiliation(s)
- Shaoxian Chen
- Medical Research Center, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China.
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