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Li HX, Ma Y, Yan YX, Zhai XK, Xin MY, Wang T, Xu DC, Song YT, Song CD, Pan CX. The purified extract of steamed Panax ginseng protects cardiomyocyte from ischemic injury via caveolin-1 phosphorylation-mediating calcium influx. J Ginseng Res 2023; 47:755-765. [PMID: 38107394 PMCID: PMC10721475 DOI: 10.1016/j.jgr.2023.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 07/05/2023] [Accepted: 07/07/2023] [Indexed: 12/19/2023] Open
Abstract
Background Caveolin-1, the scaffolding protein of cholesterol-rich invaginations, plays an important role in store-operated Ca2+ influx and its phosphorylation at Tyr14 (p-caveolin-1) is vital to mobilize protection against myocardial ischemia (MI) injury. SOCE, comprising STIM1, ORAI1 and TRPC1, contributes to intracellular Ca2+ ([Ca2+]i) accumulation in cardiomyocytes. The purified extract of steamed Panax ginseng (EPG) attenuated [Ca2+]i overload against MI injury. Thus, the aim of this study was to investigate the possibility of EPG affecting p-caveolin-1 to further mediate SOCE/[Ca2+]i against MI injury in neonatal rat cardiomyocytes and a rat model. Methods PP2, an inhibitor of p-caveolin-1, was used. Cell viability, [Ca2+]i concentration were analyzed in cardiomyocytes. In rats, myocardial infarct size, pathological damages, apoptosis and cardiac fibrosis were evaluated, p-caveolin-1 and STIM1 were detected by immunofluorescence, and the levels of caveolin-1, STIM1, ORAI1 and TRPC1 were determined by RT-PCR and Western blot. And, release of LDH, cTnI and BNP was measured. Results EPG, ginsenosides accounting for 57.96%, suppressed release of LDH, cTnI and BNP, and protected cardiomyocytes by inhibiting Ca2+ influx. And, EPG significantly relieved myocardial infarct size, cardiac apoptosis, fibrosis, and ultrastructure abnormality. Moreover, EPG negatively regulated SOCE via increasing p-caveolin-1 protein, decreasing ORAI1 mRNA and protein levels of ORAI1, TRPC1 and STIM1. More importantly, inhibition of the p-caveolin-1 significantly suppressed all of the above cardioprotection of EPG. Conclusions Caveolin-1 phosphorylation is involved in the protective effects of EPG against MI injury via increasing p-caveolin-1 to negatively regulate SOCE/[Ca2+]i.
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Affiliation(s)
- Hai-Xia Li
- School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan Province, China
- Key Laboratory of Targeting Therapy and Diagnosis for Critical Diseases, Zhengzhou, Henan Province, China
| | - Yan Ma
- School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan Province, China
| | - Yu-Xiao Yan
- School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan Province, China
| | - Xin-Ke Zhai
- School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan Province, China
| | - Meng-Yu Xin
- School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan Province, China
| | - Tian Wang
- School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan Province, China
| | - Dong-Cao Xu
- School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan Province, China
| | - Yu-Tong Song
- School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan Province, China
| | - Chun-Dong Song
- The First Affiliated Hospital of Henan University of Traditional Chinese Medicine, 9 Renmin Road, Zhengzhou, Henan Province, China
| | - Cheng-Xue Pan
- School of Pharmaceutical Sciences, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan Province, China
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Wu J, Li K, Liu Y, Feng A, Liu C, Adu-Amankwaah J, Ji M, Ma Y, Hao Y, Bu H, Sun H. Daidzein ameliorates doxorubicin-induced cardiac injury by inhibiting autophagy and apoptosis in rats. Food Funct 2023; 14:934-945. [PMID: 36541083 DOI: 10.1039/d2fo03416f] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Backgrounds: Doxorubicin (Dox) is a classical antitumor antibiotic widely restricted for use due to its cardiotoxicity. Daidzein (Daid) is a soy isoflavone that enhances antioxidant enzyme systems and inhibits apoptosis to prevent cardiovascular diseases. In this study, we intended to assess whether Daid protects against Dox-induced cardiotoxicity and explored its underlying mechanisms. Methods: Male Sprague-Dawley (SD) rats were divided into five groups: control (Ctrl), 40 mg per kg per day Daidzein (Daid), 3 mg per kg per week doxorubicin (Dox), 20 mg per kg per day Daidzein + 3 mg per kg per week doxorubicin (Daid20 + Dox) and 40 mg per kg per day Daidzein + 3 mg per kg per week doxorubicin (Daid40 + Dox) groups. Cardiac function assessments, immunohistochemistry (IHC) and immunofluorescence (IF) analyses were initially performed in each group of rats. Secondly, the cell proliferative capacity analysis, AO staining, and LC3 puncta analysis were employed to evaluate the cellular response to Dox in H9c2 cells. Ultimately, the protein expressions of cleaved caspase3, LC3 II, Bcl-2, Bax, Akt, p-Akt, and cyclin D1 were examined by western blotting. Results: Pretreatment with a low dose of Daid rather than a high dose significantly enhanced cardiac function and alleviated histopathological deterioration of cardiomyocytes induced by Dox. Daid downregulated the protein levels of Bax, LC3 II, cleaved caspase3 and p-Akt, while up-regulating Bcl-2 and cyclin D1. The Akt agonist SC79 could invalidate all the protective effects of Daid both in vivo and in vitro. Conclusions: Daid reduced autophagy and apoptosis by inhibiting the PI3K/Akt pathway, thereby protecting the hearts from Dox-induced cardiac damage.
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Affiliation(s)
- Jinxia Wu
- Department of Physiology, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China.
| | - Kexue Li
- Department of Physiology, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China.
| | - Yan Liu
- Department of Physiology, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China.
| | - Ailu Feng
- Department of Physiology, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China.
| | - Chunyang Liu
- Department of Physiology, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China.
| | - Joseph Adu-Amankwaah
- Department of Physiology, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China.
| | - Miaojin Ji
- Jiangsu Province Key Laboratory of Anesthesiology and Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, School of Anesthesiology, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China
| | - Yanhong Ma
- Department of Physiology, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China.
| | - Yanling Hao
- Department of Physiology, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China.
| | - Huimin Bu
- Department of Physiology, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China.
| | - Hong Sun
- Department of Physiology, Xuzhou Medical University, Xuzhou 221004, Jiangsu, China.
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Szychowski KA, Skóra B, Pomianek T. Effect of the elastin-derived peptides (VGVAPG and VVGPGA) on breast (MCF-7) and lung (A549) cancer cell lines in vitro. Biomed Pharmacother 2022; 151:113149. [PMID: 35598370 DOI: 10.1016/j.biopha.2022.113149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 05/11/2022] [Accepted: 05/15/2022] [Indexed: 11/29/2022] Open
Abstract
Tissues are subjected to dynamic communication between cells and the extracellular matrix (ECM), resulting in ECM remodeling. One of the ECM components is elastin, which releases elastin-derived peptides (EDPs) during the aging process. Therefore, the aim of the present study was to evaluate the impact of the VGVAPG hexapeptide and elastin-like peptide VVGPGA (control) on certain metabolism parameters in human breast adenocarcinoma (MCF-7) and human lung carcinoma (A549) cell lines. The results did not show a significant effect of the peptides on metabolic activity and caspase-3 activity. However, more specific analysis revealed that VGVAPG and VVGPGA were able to increase KI67 protein expression in both tested cell lines after 24-h treatment. Moreover, the same correlation was observed at the KI67 gene level. VGVAPG also increased the P53, ATM and SHH gene expression in the A549 cells up to 19.08%, 20.74%, and 28.77%, respectively. Interestingly, the VGVAPG peptide exerted an effect on the expression of antioxidant enzymes SOD2 and CAT in the A549 and MCF-7 cells, especially after the 24-h treatment. Lastly, both peptides influenced the CAV1 and CLTC1 expression. Our results show that the tested EDPs have an effect on both A549 and MCF-7 cells at the cellular level. This may be correlated with the multidrug-resistance (MDR) phenotype in these cancer cells, which is an emerging problem in the current anticancer treatment. However, more research is needed in this field.
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Affiliation(s)
- Konrad A Szychowski
- Department of Biotechnology and Cell Biology, Medical College, University of Information Technology and Management in Rzeszow, Sucharskiego 2, 35-225 Rzeszow, Poland.
| | - Bartosz Skóra
- Department of Biotechnology and Cell Biology, Medical College, University of Information Technology and Management in Rzeszow, Sucharskiego 2, 35-225 Rzeszow, Poland
| | - Tadeusz Pomianek
- Department of Management, Management College, University of Information Technology and Management in Rzeszow, Sucharskiego 2, Rzeszow 35-225, Poland
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Upadhyay PK, Vishwakarma VK, Srivastav RK. Caveolins: Expression of Regulating Systemic Physiological Functions in Various Predicaments. Drug Res (Stuttg) 2022; 72:238-244. [PMID: 35426095 DOI: 10.1055/a-1785-4133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Caveolins are membrane proteins which contains caveolae. They are present in the plasma membrane. Many researchers found that caveolae have been associated with expression of the caveolins in major physiological networks of mammalian cells. Subtypes of caveolin including caveolin-1 and caveolin-2 have been found in micro arteries of rat brain, while caveolin-3 has been found in astrocytes. Caveolin-1 and caveolae play important roles in Alzheimer's disease, cancer, ischemic preconditioning-mediated cardio-protection, postmenopausal alterations in women, and age-related neurodegeneration. Caveolin-1 may modify fatty acid transmembrane flux in adipocytes. The discovery of a link between ischemia preconditioning, cardio-protection, and endothelial nitric oxide synthase has supported cardiovascular research tremendously. Therefore, caveolins are effective in regulation of cellular, cardiovascular, brain, and immune processes. They ascertain new signalling pathways and link the functionalities of these pathways. This review paper focuses on contribution of caveolins in various conditions, caveolin expression at the molecular level and their physiological effects in many organ systems.
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Affiliation(s)
| | | | - Ritesh Kumar Srivastav
- Faculty of Pharmacy, Kamla Nehru Institute of Management & Technology, Sultanpur, UP, India
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Scicchitano M, Carresi C, Nucera S, Ruga S, Maiuolo J, Macrì R, Scarano F, Bosco F, Mollace R, Cardamone A, Coppoletta AR, Guarnieri L, Zito MC, Bava I, Cariati L, Greco M, Foti DP, Palma E, Gliozzi M, Musolino V, Mollace V. Icariin Protects H9c2 Rat Cardiomyoblasts from Doxorubicin-Induced Cardiotoxicity: Role of Caveolin-1 Upregulation and Enhanced Autophagic Response. Nutrients 2021; 13:nu13114070. [PMID: 34836326 PMCID: PMC8623794 DOI: 10.3390/nu13114070] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/06/2021] [Accepted: 11/12/2021] [Indexed: 12/26/2022] Open
Abstract
Doxorubicin (Doxo) is a widely used antineoplastic drug which often induces cardiomyopathy, leading to congestive heart failure through the intramyocardial production of reactive oxygen species (ROS). Icariin (Ica) is a flavonoid isolated from Epimedii Herba (Berberidaceae). Some reports on the pharmacological activity of Ica explained its antioxidant and cardioprotective effects. The aim of our study was to assess the protective activities of Ica against Doxo-detrimental effects on rat heart-tissue derived embryonic cardiac myoblasts (H9c2 cells) and to identify, at least in part, the molecular mechanisms involved. Our results showed that pretreatment of H9c2 cells with 1 μM and 5 μM of Ica, prior to Doxo exposure, resulted in an improvement in cell viability, a reduction in ROS generation, the prevention of mitochondrial dysfunction and mPTP opening. Furthermore, for the first time, we identified one feasible molecular mechanism through which Ica could exerts its cardioprotective effects. Indeed, our data showed a significant reduction in Caveolin-1(Cav-1) expression levels and a specific inhibitory effect on phosphodiesterase 5 (PDE5a) activity, improving mitochondrial function compared to Doxo-treated cells. Besides, Ica significantly prevented apoptotic cell death and downregulated the main pro-autophagic marker Beclin-1 and LC3 lipidation rate, restoring physiological levels of activation of the protective autophagic process. These results suggest that Ica might have beneficial cardioprotective effects in attenuating cardiotoxicity in patients requiring anthracycline chemotherapy through the inhibition of oxidative stress and, in particular, through the modulation of Cav-1 expression levels and the involvement of PDE5a activity, thereby leading to cardiac cell survival.
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Affiliation(s)
- Miriam Scicchitano
- Institute of Research for Food Safety and Health (IRC-FSH), Department of Health Sciences, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (M.S.); (S.N.); (S.R.); (J.M.); (R.M.); (F.S.); (F.B.); (R.M.); (A.C.); (A.R.C.); (L.G.); (M.C.Z.); (I.B.); (L.C.); (E.P.); (M.G.); (V.M.); (V.M.)
| | - Cristina Carresi
- Institute of Research for Food Safety and Health (IRC-FSH), Department of Health Sciences, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (M.S.); (S.N.); (S.R.); (J.M.); (R.M.); (F.S.); (F.B.); (R.M.); (A.C.); (A.R.C.); (L.G.); (M.C.Z.); (I.B.); (L.C.); (E.P.); (M.G.); (V.M.); (V.M.)
- Correspondence:
| | - Saverio Nucera
- Institute of Research for Food Safety and Health (IRC-FSH), Department of Health Sciences, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (M.S.); (S.N.); (S.R.); (J.M.); (R.M.); (F.S.); (F.B.); (R.M.); (A.C.); (A.R.C.); (L.G.); (M.C.Z.); (I.B.); (L.C.); (E.P.); (M.G.); (V.M.); (V.M.)
| | - Stefano Ruga
- Institute of Research for Food Safety and Health (IRC-FSH), Department of Health Sciences, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (M.S.); (S.N.); (S.R.); (J.M.); (R.M.); (F.S.); (F.B.); (R.M.); (A.C.); (A.R.C.); (L.G.); (M.C.Z.); (I.B.); (L.C.); (E.P.); (M.G.); (V.M.); (V.M.)
| | - Jessica Maiuolo
- Institute of Research for Food Safety and Health (IRC-FSH), Department of Health Sciences, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (M.S.); (S.N.); (S.R.); (J.M.); (R.M.); (F.S.); (F.B.); (R.M.); (A.C.); (A.R.C.); (L.G.); (M.C.Z.); (I.B.); (L.C.); (E.P.); (M.G.); (V.M.); (V.M.)
| | - Roberta Macrì
- Institute of Research for Food Safety and Health (IRC-FSH), Department of Health Sciences, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (M.S.); (S.N.); (S.R.); (J.M.); (R.M.); (F.S.); (F.B.); (R.M.); (A.C.); (A.R.C.); (L.G.); (M.C.Z.); (I.B.); (L.C.); (E.P.); (M.G.); (V.M.); (V.M.)
| | - Federica Scarano
- Institute of Research for Food Safety and Health (IRC-FSH), Department of Health Sciences, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (M.S.); (S.N.); (S.R.); (J.M.); (R.M.); (F.S.); (F.B.); (R.M.); (A.C.); (A.R.C.); (L.G.); (M.C.Z.); (I.B.); (L.C.); (E.P.); (M.G.); (V.M.); (V.M.)
| | - Francesca Bosco
- Institute of Research for Food Safety and Health (IRC-FSH), Department of Health Sciences, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (M.S.); (S.N.); (S.R.); (J.M.); (R.M.); (F.S.); (F.B.); (R.M.); (A.C.); (A.R.C.); (L.G.); (M.C.Z.); (I.B.); (L.C.); (E.P.); (M.G.); (V.M.); (V.M.)
| | - Rocco Mollace
- Institute of Research for Food Safety and Health (IRC-FSH), Department of Health Sciences, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (M.S.); (S.N.); (S.R.); (J.M.); (R.M.); (F.S.); (F.B.); (R.M.); (A.C.); (A.R.C.); (L.G.); (M.C.Z.); (I.B.); (L.C.); (E.P.); (M.G.); (V.M.); (V.M.)
| | - Antonio Cardamone
- Institute of Research for Food Safety and Health (IRC-FSH), Department of Health Sciences, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (M.S.); (S.N.); (S.R.); (J.M.); (R.M.); (F.S.); (F.B.); (R.M.); (A.C.); (A.R.C.); (L.G.); (M.C.Z.); (I.B.); (L.C.); (E.P.); (M.G.); (V.M.); (V.M.)
| | - Anna Rita Coppoletta
- Institute of Research for Food Safety and Health (IRC-FSH), Department of Health Sciences, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (M.S.); (S.N.); (S.R.); (J.M.); (R.M.); (F.S.); (F.B.); (R.M.); (A.C.); (A.R.C.); (L.G.); (M.C.Z.); (I.B.); (L.C.); (E.P.); (M.G.); (V.M.); (V.M.)
| | - Lorenza Guarnieri
- Institute of Research for Food Safety and Health (IRC-FSH), Department of Health Sciences, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (M.S.); (S.N.); (S.R.); (J.M.); (R.M.); (F.S.); (F.B.); (R.M.); (A.C.); (A.R.C.); (L.G.); (M.C.Z.); (I.B.); (L.C.); (E.P.); (M.G.); (V.M.); (V.M.)
| | - Maria Caterina Zito
- Institute of Research for Food Safety and Health (IRC-FSH), Department of Health Sciences, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (M.S.); (S.N.); (S.R.); (J.M.); (R.M.); (F.S.); (F.B.); (R.M.); (A.C.); (A.R.C.); (L.G.); (M.C.Z.); (I.B.); (L.C.); (E.P.); (M.G.); (V.M.); (V.M.)
| | - Irene Bava
- Institute of Research for Food Safety and Health (IRC-FSH), Department of Health Sciences, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (M.S.); (S.N.); (S.R.); (J.M.); (R.M.); (F.S.); (F.B.); (R.M.); (A.C.); (A.R.C.); (L.G.); (M.C.Z.); (I.B.); (L.C.); (E.P.); (M.G.); (V.M.); (V.M.)
| | - Luca Cariati
- Institute of Research for Food Safety and Health (IRC-FSH), Department of Health Sciences, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (M.S.); (S.N.); (S.R.); (J.M.); (R.M.); (F.S.); (F.B.); (R.M.); (A.C.); (A.R.C.); (L.G.); (M.C.Z.); (I.B.); (L.C.); (E.P.); (M.G.); (V.M.); (V.M.)
| | - Marta Greco
- Department of Health Sciences, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy;
| | - Daniela Patrizia Foti
- Department of Experimental, Clinical Medicine University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy;
| | - Ernesto Palma
- Institute of Research for Food Safety and Health (IRC-FSH), Department of Health Sciences, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (M.S.); (S.N.); (S.R.); (J.M.); (R.M.); (F.S.); (F.B.); (R.M.); (A.C.); (A.R.C.); (L.G.); (M.C.Z.); (I.B.); (L.C.); (E.P.); (M.G.); (V.M.); (V.M.)
- IRCCS San Raffaele Pisana, 88163 Roma, Italy
| | - Micaela Gliozzi
- Institute of Research for Food Safety and Health (IRC-FSH), Department of Health Sciences, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (M.S.); (S.N.); (S.R.); (J.M.); (R.M.); (F.S.); (F.B.); (R.M.); (A.C.); (A.R.C.); (L.G.); (M.C.Z.); (I.B.); (L.C.); (E.P.); (M.G.); (V.M.); (V.M.)
| | - Vincenzo Musolino
- Institute of Research for Food Safety and Health (IRC-FSH), Department of Health Sciences, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (M.S.); (S.N.); (S.R.); (J.M.); (R.M.); (F.S.); (F.B.); (R.M.); (A.C.); (A.R.C.); (L.G.); (M.C.Z.); (I.B.); (L.C.); (E.P.); (M.G.); (V.M.); (V.M.)
| | - Vincenzo Mollace
- Institute of Research for Food Safety and Health (IRC-FSH), Department of Health Sciences, University “Magna Graecia” of Catanzaro, 88100 Catanzaro, Italy; (M.S.); (S.N.); (S.R.); (J.M.); (R.M.); (F.S.); (F.B.); (R.M.); (A.C.); (A.R.C.); (L.G.); (M.C.Z.); (I.B.); (L.C.); (E.P.); (M.G.); (V.M.); (V.M.)
- IRCCS San Raffaele Pisana, 88163 Roma, Italy
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Mizuta Y, Tokuda K, Guo J, Zhang S, Narahara S, Kawano T, Murata M, Yamaura K, Hoka S, Hashizume M, Akahoshi T. Sodium thiosulfate prevents doxorubicin-induced DNA damage and apoptosis in cardiomyocytes in mice. Life Sci 2020; 257:118074. [PMID: 32673667 DOI: 10.1016/j.lfs.2020.118074] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 06/23/2020] [Accepted: 07/06/2020] [Indexed: 02/06/2023]
Abstract
AIM Doxorubicin (DOX) induces dose-dependent cardiotoxicity due to reactive oxygen species (ROS)-mediated oxidative stress and subsequent apoptosis of cardiomyocytes. We aimed to assess whether sodium thiosulfate (STS), which has antioxidant and antiapoptotic properties, exerts cardioprotective effects on DOX-induced cardiomyopathy. MAIN METHODS Male C57BL/6N mice were divided into four groups, control, DOX, STS, and DOX + STS, and administered DOX (20 or 30 mg/kg) or normal saline intraperitoneally, followed by an injection of STS (2 g/kg) or normal saline 4 h later. KEY FINDINGS The DOX group showed a poorer 6-day survival and decreased cardiac function than the DOX + STS group. The DOX group showed a marked increase in the plasma creatine kinase isoenzyme myocardial band (CK-MB) and lactate dehydrogenase (LDH) levels 10 h after DOX injection, while the DOX + STS group showed suppression of DOX-induced elevation of CK-MB and LDH levels. The DOX group showed increased 8-hydroxy-2'-deoxyguanosine (8-OHdG) levels in the heart, whereas the DOX + STS group showed increased catalase and superoxide dismutase (SOD) activities and decreased 8-OHdG levels in the heart compared with DOX group, suggesting that STS reduces DOX-induced DNA damage by improving antioxidant enzymes activities in cardiomyocytes. Additionally, the DOX + STS group showed attenuation of cleaved caspase-3 and DNA fragmentation in cardiomyocytes compared with the DOX group, suggesting that STS suppresses DOX-induced apoptosis in cardiomyocytes. SIGNIFICANCE STS exerts cardioprotective effects against DOX-induced cardiac dysfunction partly by improving antioxidant defense and suppressing apoptosis, indicating the therapeutic potential of STS against DOX-induced cardiomyopathy.
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Affiliation(s)
- Yukie Mizuta
- Department of Disaster and Emergency Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Department of Anesthesiology and Critical Care Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kentaro Tokuda
- Department of Anesthesiology and Critical Care Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Intensive Care Unit, Kyushu University Hospital, Fukuoka, Japan.
| | - Jie Guo
- Department of Disaster and Emergency Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Shuo Zhang
- Department of Disaster and Emergency Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Sayoko Narahara
- Center for Advanced Medical Innovation, Kyushu University, Fukuoka, Japan
| | - Takahito Kawano
- Center for Advanced Medical Innovation, Kyushu University, Fukuoka, Japan
| | - Masaharu Murata
- Center for Advanced Medical Innovation, Kyushu University, Fukuoka, Japan
| | - Ken Yamaura
- Department of Anesthesiology and Critical Care Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Sumio Hoka
- Department of Anesthesiology and Critical Care Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Makoto Hashizume
- Center for Advanced Medical Innovation, Kyushu University, Fukuoka, Japan
| | - Tomohiko Akahoshi
- Department of Disaster and Emergency Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; Emergency and Critical Care Center, Kyushu University Hospital, Fukuoka, Japan
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7
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Russell JS, Griffith TA, Peart JN, Headrick JP. Cardiomyoblast caveolin expression: effects of simulated diabetes, α-linolenic acid, and cell signaling pathways. Am J Physiol Cell Physiol 2020; 319:C11-C20. [PMID: 32348174 DOI: 10.1152/ajpcell.00499.2019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Caveolins regulate myocardial substrate handling, survival signaling, and stress resistance; however, control of expression is incompletely defined. We test how metabolic features of type 2 diabetes (T2D), and modulation of cell signaling, influence caveolins in H9c2 cardiomyoblasts. Cells were exposed to glucose (25 vs. 5 mM), insulin (100 nM), or palmitate (0.1 mM), individually or combined, and the effects of adenylate cyclase (AC) activation (50 μM forskolin), focal adhesion kinase (FAK) or protein kinase C β2 (PKCβ2) inhibition (1 μM FAK inhibitor 14 or CGP-53353, respectively) or the polyunsaturated fatty acid (PUFA) α-linolenic acid (ALA; 10 μM) were tested. Simulated T2D (elevated glucose + insulin + palmitate) depressed caveolin-1 and -3 without modifying caveolin-2. Caveolin-3 repression was primarily palmitate dependent, whereas high glucose (HG) and insulin independently increased caveolin-3 (while reducing expression when combined). Differential control was evident: baseline caveolin-3 was suppressed by FAK/PKCβ2 and insensitive to AC activities, with baseline caveolin-1 and -2 suppressed by AC and insensitive to FAK/PKCβ2. Forskolin and ALA selectively preserved caveolin-3 in T2D cells, whereas PKCβ2 and FAK inhibition increased caveolin-3 under all conditions. Despite preservation of caveolin-3, ALA did not modify nucleosome content (apoptosis marker) or transcription of proinflammatory mediators in T2D cells. In summary, caveolin-1 and -3 are strongly repressed with simulated T2D, with caveolin-3 particularly sensitive to palmitate; intrinsic PKCβ2 and FAK activities depress caveolin-3 in healthy and stressed cells; ALA and AC activation and PKCβ2 inhibition preserve caveolin-3 under T2D conditions; and caveolin-3 changes with T2D and ALA appear unrelated to inflammatory signaling or extent of apoptosis.
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Affiliation(s)
- Jake S Russell
- School of Medical Science, Griffith University Gold Coast, Southport, Queensland, Australia
| | - Tia A Griffith
- School of Medical Science, Griffith University Gold Coast, Southport, Queensland, Australia
| | - Jason N Peart
- School of Medical Science, Griffith University Gold Coast, Southport, Queensland, Australia
| | - John P Headrick
- School of Medical Science, Griffith University Gold Coast, Southport, Queensland, Australia
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8
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Takaguri A, Akihiro O, Sasano J, Satoh K. Involvement of Yes-associated protein 1 (YAP1) in doxorubicin-induced cytotoxicity in H9c2 cardiac cells. Cell Biol Int 2019; 44:873-881. [PMID: 31833156 DOI: 10.1002/cbin.11285] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Accepted: 12/10/2019] [Indexed: 11/06/2022]
Abstract
Cardiac cell death is one of the major events implicated in doxorubicin-induced cardiotoxicity, which leads to heart failure. We recently reported that Yes-associated protein 1 (YAP1) regulates cell survival and apoptosis. However, it is unclear whether YAP1 regulates doxorubicin-induced cell death in cardiomyocytes. We investigated whether YAP1 is involved in doxorubicin-induced cell death using H9c2 cardiac cells and mouse heart. In an in vivo study, YAP1 protein expression was significantly decreased in hearts of doxorubicin-treated mice with increased caspase-3 activation. Doxorubicin also caused cell death by increasing caspase-3 activation in H9c2 cells. Doxorubicin reduced YAP1 protein expression and messenger RNA expression accompanied by increased phosphorylation of YAP1 at Ser127. Doxorubicin further increased cell death with increased caspase-3/7 activation in the absence of YAP1 when compared with doxorubicin or siYAP1 treatment alone. Overexpression of constitutively active YAP1 (YAP1-5SA) using an adenovirus gene transfer technique significantly reversed doxorubicin-induced cell death by decreasing caspase-3/7 activation in H9c2 cells. Akt, a potential prosurvival factor, decreased in doxorubicin- and YAP1 short interfering RNA (siRNA)-treated cells. Doxorubicin further significantly decreased Akt protein expression when YAP1 was silenced. Overexpression of YAP1 canceled decreased Akt protein expression induced by doxorubicin treatment in H9c2 cells. In conclusion, these results suggest that doxorubicin-induced cardiac cell death is mediated in part by down-regulation of YAP1 and YAP1-targeted gene, Akt. Modulating YAP1 and its related Hippo pathway on local cardiomyocytes may be a promising therapeutic approach for doxorubicin-induced cardiotoxicity.
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Affiliation(s)
- Akira Takaguri
- Department of Pharmacology, Hokkaido University of Science, 7-15-4-1 Maeda, Teine-ku, Sapporo, 006-8590, Japan
| | - Ohmiya Akihiro
- Department of Pharmacology, Hokkaido University of Science, 7-15-4-1 Maeda, Teine-ku, Sapporo, 006-8590, Japan
| | - Jun Sasano
- Department of Pharmacology, Hokkaido University of Science, 7-15-4-1 Maeda, Teine-ku, Sapporo, 006-8590, Japan
| | - Kumi Satoh
- Department of Pharmacology, Hokkaido University of Science, 7-15-4-1 Maeda, Teine-ku, Sapporo, 006-8590, Japan
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Qu C, Sun J, Liu Y, Wang X, Wang L, Han C, Chen Q, Guan T, Li H, Zhang Y, Wang Y, Liu J, Zou W, Liu J. Caveolin-1 facilitated KCNA5 expression, promoting breast cancer viability. Oncol Lett 2018; 16:4829-4838. [PMID: 30250548 PMCID: PMC6144920 DOI: 10.3892/ol.2018.9261] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Accepted: 04/16/2018] [Indexed: 12/17/2022] Open
Abstract
Potassium voltage-gated channel subfamily A member 5 (KCNA5) is a voltage-gated potassium channel protein encoded by the KCNA5 gene. A large number of studies have shown that KCNA5 is associated with the survival of malignant tumors, including breast cancer, but the detailed mechanism remains inconclusive. Our previous study found that KCNA5 is co-expressed with a scaffolding protein, caveolin-1 in MCF-10A-neoT non-tumorigenic epithelial cell. In the present study, KCNA5 and caveolin-1 were expressed in breast cancer tissues and cell lines. Exposing MCF-10A-neoT to 2 mM of methyl-β-cyclodextrin, an agent to disrupt caveolae and lipid rafts led to a downregulation of caveolin-1 that reduced the expression of KCNA5. Furthermore, following caveolin-1 knockdown, the expression of KCNA5 was decreased in MDA-MB-231 human breast cancer and MCF-10A-neoT non-tumorigenic epithelial cell lines. In subsequent experiments, the MTT assay showed that increased caveolin-1 and KCNA5 expression promoted the survival of MCF-7 human breast cancer cells, but cell survival was not affected following KCNA5 overexpression alone. Using small interfering RNA technology, KCNA5-silenced MCF-10A-neoT cells were established and a decreased level of phosphorylated-AKT serine/threonine kinase (AKT) was observed in the cells compared with the parental cells. Overall, these results suggested that caveolin-1 facilitated KCNA5 expression and may be associated with AKT activation.
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Affiliation(s)
- Chao Qu
- College of Life Science, Liaoning Normal University, Dalian, Liaoning 116029, P.R. China.,Centre for Regenerative Medicine, First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116085, P.R. China.,No. 210 Hospital of Chinese People's Liberation Army, Dalian, Liaoning 116021, P.R. China
| | - Jia Sun
- College of Life Science, Liaoning Normal University, Dalian, Liaoning 116029, P.R. China
| | - Ying Liu
- College of Life Science, Liaoning Normal University, Dalian, Liaoning 116029, P.R. China.,Institute for Translational Medicine, Qingdao University, Qingdao, Shandong 266021, P.R. China
| | - Xiaobo Wang
- No. 210 Hospital of Chinese People's Liberation Army, Dalian, Liaoning 116021, P.R. China
| | - Lifen Wang
- The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116027, P.R. China
| | - Chao Han
- College of Life Science, Liaoning Normal University, Dalian, Liaoning 116029, P.R. China.,Centre for Regenerative Medicine, First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116085, P.R. China
| | - Qian Chen
- College of Life Science, Liaoning Normal University, Dalian, Liaoning 116029, P.R. China
| | - Tianhui Guan
- College of Life Science, Liaoning Normal University, Dalian, Liaoning 116029, P.R. China
| | - Hongyan Li
- College of Life Science, Liaoning Normal University, Dalian, Liaoning 116029, P.R. China
| | - Yejun Zhang
- College of Life Science, Liaoning Normal University, Dalian, Liaoning 116029, P.R. China
| | - Yang Wang
- College of Life Science, Liaoning Normal University, Dalian, Liaoning 116029, P.R. China.,Department of Medical Microbiology and Immunology, Creighton University School of Medicine, Omaha, NE 68178, USA
| | - Jia Liu
- College of Life Science, Liaoning Normal University, Dalian, Liaoning 116029, P.R. China
| | - Wei Zou
- College of Life Science, Liaoning Normal University, Dalian, Liaoning 116029, P.R. China
| | - Jing Liu
- Centre for Regenerative Medicine, First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116085, P.R. China
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Takaguri A, Kubo T, Mori M, Satoh K. The protective role of YAP1 on ER stress-induced cell death in vascular smooth muscle cells. Eur J Pharmacol 2017; 815:470-477. [PMID: 28951205 DOI: 10.1016/j.ejphar.2017.09.033] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 09/19/2017] [Accepted: 09/20/2017] [Indexed: 10/18/2022]
Abstract
Apoptosis of vascular smooth muscle cells (VSMCs) has been implicated in the progression of atherosclerosis, especially in vascular remodelling and plaque rupture. Although it is known that Yes-associated protein 1 (YAP1) is a critical molecule that regulates cell proliferation, differentiation and apoptosis, the role of YAP1 in VSMCs apoptosis remains unknown. In this study, we investigated whether YAP1 modulates VSMC apoptosis induced by endoplasmic reticulum (ER) stress. In cultured VSMC, tunicamycin caused cell death accompanied by an increase in caspase-3 processing and C/EBP homologous protein (CHOP) expression. YAP1 protein expression was downregulated by tunicamycin and the phosphorylation of YAP1 at the Ser127 site was significantly increased by tunicamycin. Tunicamycin further decreased cell viability followed by an increase in caspase-3 processing in the absence of YAP1 when compared with treatment only with tunicamycin or siYAP1. On the other hand, overexpression of a constitutively active YAP1 (YAP1-5SA), which lacks five serine phosphorylation sites, significantly prevented the caspase-3 processing and restored the decrease in cell viability induced by tunicamycin. Overexpression of YAP1-5SA significantly inhibited tunicamycin-induced caspase-8 processing without affecting phosphorylation of p-38 and Akt. Furthermore, the overexpression of YAP1-5SA significantly restored the decrease in ANKRD1 expression induced by tunicamycin. The inhibition of tunicamycin-induced caspase-3 cleavage by YAP1-5SA was markedly attenuated in ANKRD1-knockdown cells. These results demonstrate that ER stress can alter intracellular YAP1 protein expression in VSMCs and that YAP1 is protective against VSMC apoptosis induced by ER stress through inhibiting caspase8/3 activation mediated in part by upregulation of ANKRD1.
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Affiliation(s)
- Akira Takaguri
- Department of Pharmacology, Hokkaido Pharmaceutical University School of Pharmacy, 7-15-4-1 Maeda, Teine-ku, Sapporo 006-8590, Japan
| | - Takashi Kubo
- Department of Pharmacology, Hokkaido Pharmaceutical University School of Pharmacy, 7-15-4-1 Maeda, Teine-ku, Sapporo 006-8590, Japan
| | - Masaya Mori
- Department of Pharmacology, Hokkaido Pharmaceutical University School of Pharmacy, 7-15-4-1 Maeda, Teine-ku, Sapporo 006-8590, Japan
| | - Kumi Satoh
- Department of Pharmacology, Hokkaido Pharmaceutical University School of Pharmacy, 7-15-4-1 Maeda, Teine-ku, Sapporo 006-8590, Japan.
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11
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Takaguri A, Inoue S, Kubo T, Satoh K. AMPK activation by prolonged stimulation with interleukin-1β contributes to the promotion of GLUT4 translocation in skeletal muscle cells. Cell Biol Int 2016; 40:1204-1211. [PMID: 27569904 DOI: 10.1002/cbin.10673] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Accepted: 08/21/2016] [Indexed: 12/15/2022]
Abstract
Impaired insulin signaling in skeletal muscle cells causes insulin resistance associated with the onset of type 2 diabetes. Although interleukin (IL)-1β has been considered to be implicated in the pathogenesis of type 2 diabetes, the action of prolonged stimulation with IL-1β on the insulin signaling pathway in skeletal muscle cells remains poorly understood. In the current study, we investigated the effect of IL-1β stimulation on insulin signal transduction from the insulin receptor (IR), resulting in glucose transporter 4 (GLUT4) translocation in skeletal muscle cells. In L6-GLUT4myc cells, stimulation with IL-1β for 24 h promoted GLUT4 translocation to the plasma membrane and increased glucose uptake in a concentration-dependent manner, whereas short-term stimulation with IL-1 for up to 6 h did not affect that. In addition, stimulation with IL-1β for 24 h further increased insulin-stimulated GLUT4 translocation. Interestingly, stimulation with IL-1β for 24 h did not cause any change in the phosphorylation of insulin signal molecules IR, insulin receptor substrate (IRS)-1, Akt, and p21-activated kinase (PAK1). Stimulation with IL-1β for 24 h significantly increased AMP-activated protein kinase (AMPK) phosphorylation and GLUT4 protein expression. Small interfering RNA (siRNA) targeting AMPK1/2 significantly inhibited IL-1β-stimulated GLUT4 translocation. These results suggest that prolonged stimulation with IL-1β positively regulates GLUT4 translocation in skeletal muscle cells. IL-1β may have a beneficial effect on maintaining glucose homeostasis in skeletal muscle cells in patients with type 2 diabetes. .
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Affiliation(s)
- Akira Takaguri
- Department of Pharmacology, Hokkaido Pharmaceutical University School of Pharmacy, 7-15-4-1 Maeda, Teine-ku, Sapporo, 006-8590, Japan
| | - Saya Inoue
- Department of Pharmacology, Hokkaido Pharmaceutical University School of Pharmacy, 7-15-4-1 Maeda, Teine-ku, Sapporo, 006-8590, Japan
| | - Takashi Kubo
- Department of Pharmacology, Hokkaido Pharmaceutical University School of Pharmacy, 7-15-4-1 Maeda, Teine-ku, Sapporo, 006-8590, Japan
| | - Kumi Satoh
- Department of Pharmacology, Hokkaido Pharmaceutical University School of Pharmacy, 7-15-4-1 Maeda, Teine-ku, Sapporo, 006-8590, Japan.
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12
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Huerta-García E, Márquez-Ramírez SG, Ramos-Godinez MDP, López-Saavedra A, Herrera LA, Parra A, Alfaro-Moreno E, Gómez EO, López-Marure R. Internalization of titanium dioxide nanoparticles by glial cells is given at short times and is mainly mediated by actin reorganization-dependent endocytosis. Neurotoxicology 2015; 51:27-37. [PMID: 26340880 DOI: 10.1016/j.neuro.2015.08.013] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Revised: 08/27/2015] [Accepted: 08/27/2015] [Indexed: 01/12/2023]
Abstract
Many nanoparticles (NPs) have toxic effects on multiple cell lines. This toxicity is assumed to be related to their accumulation within cells. However, the process of internalization of NPs has not yet been fully characterized. In this study, the cellular uptake, accumulation, and localization of titanium dioxide nanoparticles (TiO2 NPs) in rat (C6) and human (U373) glial cells were analyzed using time-lapse microscopy (TLM) and transmission electron microscopy (TEM). Cytochalasin D (Cyt-D) was used to evaluate whether the internalization process depends of actin reorganization. To determine whether the NP uptake is mediated by phagocytosis or macropinocytosis, nitroblue tetrazolium (NBT) reduction was measured and the 5-(N-ethyl-N-isopropyl)-amiloride was used. Expression of proteins involved with endocytosis and exocytosis such as caveolin-1 (Cav-1) and cysteine string proteins (CSPs) was also determined using flow cytometry. TiO2 NPs were taken up by both cell types, were bound to cellular membranes and were internalized at very short times after exposure (C6, 30 min; U373, 2h). During the uptake process, the formation of pseudopodia and intracellular vesicles was observed, indicating that this process was mediated by endocytosis. No specific localization of TiO2 NPs into particular organelles was found: in contrast, they were primarily localized into large vesicles in the cytoplasm. Internalization of TiO2 NPs was strongly inhibited by Cyt-D in both cells and by amiloride in U373 cells; besides, the observed endocytosis was not associated with NBT reduction in either cell type, indicating that macropinocytosis is the main process of internalization in U373 cells. In addition, increases in the expression of Cav-1 protein and CSPs were observed. In conclusion, glial cells are able to internalize TiO2 NPs by a constitutive endocytic mechanism which may be associated with their strong cytotoxic effect in these cells; therefore, TiO2 NPs internalization and their accumulation in brain cells could be dangerous to human health.
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Affiliation(s)
- Elizabeth Huerta-García
- Departamento de Fisiología (Biología Celular), Instituto Nacional de Cardiología "Ignacio Chávez", Mexico; Departamento de Posgrado, Escuela Superior de Medicina, Instituto Politécnico Nacional, Mexico
| | - Sandra Gissela Márquez-Ramírez
- Departamento de Fisiología (Biología Celular), Instituto Nacional de Cardiología "Ignacio Chávez", Mexico; Departamento de Posgrado, Escuela Superior de Medicina, Instituto Politécnico Nacional, Mexico
| | | | | | - Luis Alonso Herrera
- Unidad de Investigación Biomédica en Cáncer, Instituto Nacional de Cancerología, Mexico; Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico
| | - Alberto Parra
- Departamento de Inmunología, Escuela Superior de Medicina, Instituto Politécnico Nacional, Mexico
| | - Ernesto Alfaro-Moreno
- Laboratorio de Toxicología Ambiental, Subdirección de Investigación Básica, Instituto Nacional de Cancerología, Mexico(h); Swedish Toxicology Sciences Research Center (Swetox), Södertälje, Sweden
| | - Erika Olivia Gómez
- Academia de Biología, Colegio de Ciencias y Humanidades, Universidad Autónoma de la Ciudad de México, Mexico
| | - Rebeca López-Marure
- Departamento de Fisiología (Biología Celular), Instituto Nacional de Cardiología "Ignacio Chávez", Mexico.
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