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Zhao LH, Guo XY, Yan HW, Jiang JS, Zhang X, Yang YN, Yuan X, Sun H, Zhang PC. A class of geranylquinol-derived polycyclic meroterpenoids from Arnebia euchroma against heart failure by reducing excessive autophagy and apoptosis in cardiomyocytes. Bioorg Chem 2024; 151:107691. [PMID: 39116524 DOI: 10.1016/j.bioorg.2024.107691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2024] [Revised: 07/30/2024] [Accepted: 08/01/2024] [Indexed: 08/10/2024]
Abstract
Ten new B-ring aromatized 6/6/6-tricyclic dearomatized benzocogeijerene-based meroterpenoids with unusual methyl 1,2-shift or demethylation (2-9b), and two new geranylquinol derivatives (1 and 10), together with two known compounds (11 and 12), were isolated from the roots of Arnebia euchroma. Their structures were elucidated by extensive spectroscopic methods, X-ray diffraction crystallography, and ECD calculations. The plausible biosynthetic pathways including the unusual methyl 1,2-shfit and demethylation for B-ring aromatized 6/6/6-tricyclic meroterpenoids were discussed. Compounds 1, 2, 5, 6, 11, and 12 showed significant cardioprotective activities comparable to diltiazem against isoprenaline (ISO)-induced H9C2 cell damage in vitro. Compound 11 probably exerted heart-protective effect on ISO-induced H9C2 cells by modulating the PI3K-AKT-mTOR pathway, reducing excessive autophagy, and decreasing myocardial apoptosis.
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Affiliation(s)
- Ling-Hao Zhao
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Xin-Yi Guo
- State Key Laboratory of Digestive Health, Institute of Materia Medica, Chinses Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Hai-Wei Yan
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Jian-Shuang Jiang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Xu Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Ya-Nan Yang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Xiang Yuan
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
| | - Hua Sun
- State Key Laboratory of Digestive Health, Institute of Materia Medica, Chinses Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
| | - Pei-Cheng Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
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2
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Effects of Nickel at Environmentally Relevant Concentrations on Human Corneal Epithelial Cells: Oxidative Damage and Cellular Apoptosis. Biomolecules 2022; 12:biom12091283. [PMID: 36139122 PMCID: PMC9496594 DOI: 10.3390/biom12091283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 09/03/2022] [Accepted: 09/06/2022] [Indexed: 11/20/2022] Open
Abstract
Nickel (Ni) is ubiquitous in the environment and evidence has suggested that Ni can cause ocular surface inflammation, especially in fine particulate matter and personal products. Continuous daily exposure to Ni-containing dust may adversely impact the human cornea, whereas the underlying mechanism of this phenomenon remains not fully understood. Here, human corneal epithelial cells (HCEC) were employed to analyze the toxicity of Ni via detections of cell morphology, cell viability, reactive oxygen species production, cell apoptosis rate, and apoptotic gene expression levels after exposure for 24 h to uncover the damage of Ni to the cornea. A concentration-dependent inhibition of HCECs’ viability and growth was observed. In particular, Ni at 100 μM significantly decreased cell viability to 76%, and many cells displayed an abnormal shape and even induced oxidative damage of HCEC by increasing ROS to 1.2 times, and further led to higher apoptosis (24%), evidenced by up-regulation of apoptotic genes Caspase-8, Caspase-9, NF-κB, IL-1β, and Caspase-3, posing a risk of dry eye. Our study suggested that Ni induces apoptosis of HCEC through oxidative damage. Therefore, Ni pollution should be comprehensively considered in health risks or toxic effects on the ocular surface.
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3
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Geng S, Gu L, Zhong L, Xu T, Sun Y. Genomic organization, evolution and functional characterization of caspase-2 and caspase-8 in miiuy croaker (Miichthys miiuy). DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2022; 127:104308. [PMID: 34742824 DOI: 10.1016/j.dci.2021.104308] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 11/02/2021] [Accepted: 11/02/2021] [Indexed: 06/13/2023]
Abstract
As the central link and executor of cell apoptosis, the caspase protease family has received extensive attention in recent years. However, the genetic characteristics and immune functions of some caspases are still unknown in fish. In our study, we cloned the full-length caspase-2 (mmCasp2) and caspase-8 (mmCasp2) of miiuy croaker, then we analyzed characteristics and functions of these two genes which are upstream of the apoptosis cascade reaction. Mmcasp2 and mmCasp8 exhibited a conserved domain (CASc), and the different part is that the mmCasp2 has a CARD domain, while mmCasp8 have two DED domains. Sequence and evolution analysis results showed that caspase-2 is more conservative than caspae-8 in the process of evolution. Cellular localization analysis showed that the distribution of mmCasp2 and mmCasp2 was in cytoplasm. The real-time PCR analysis showed that these two caspases are constitutively expressed in different tissues, and the expression of mmCasp2 and mmCasp8 were up-regulated in the liver, spleen, and kidney after infection with V. anguillarum. Lastly, qRT-PCR and Luciferase assays analysis showed that mmCasp2 and mmCasp8 can inhibit the NF-кB pathway. In general, we systematically analyzed the structure, evolution and related functional experiments of the caspase-2 and caspase-8 in miiuy croaker, which will help further understand the role caspase family plays in the apoptosis and immune response.
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Affiliation(s)
- Shang Geng
- Laboratory of Fish Molecular Immunology, College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China
| | - Liping Gu
- Department of Medical Ultrasound, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Lichang Zhong
- Department of Medical Ultrasound, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Tianjun Xu
- Laboratory of Fish Molecular Immunology, College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China; Laboratory of Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources (Shanghai Ocean University), Ministry of Education, Shanghai, China; National Pathogen Collection Center for Aquatic Animals, Shanghai Ocean University, China
| | - Yuena Sun
- Laboratory of Fish Molecular Immunology, College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources (Shanghai Ocean University), Ministry of Education, Shanghai, China; National Pathogen Collection Center for Aquatic Animals, Shanghai Ocean University, China.
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4
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Gao L, Guo X, Liu S, Sun Q, Qin X, Lv P, Hu M, Xu J, Dong Y. Neuroprotective role of DL-3-n-butylphthalide via the Nrf2/SIRT3 pathway in a mouse model of vascular dementia. Brain Res 2022; 1779:147785. [DOI: 10.1016/j.brainres.2022.147785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 12/28/2021] [Accepted: 01/10/2022] [Indexed: 11/02/2022]
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5
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Yang L, Bi L, Jin L, Wang Y, Li Y, Li Z, He W, Cui H, Miao J, Wang L. Geniposide Ameliorates Liver Fibrosis Through Reducing Oxidative Stress and Inflammatory Respose, Inhibiting Apoptosis and Modulating Overall Metabolism. Front Pharmacol 2021; 12:772635. [PMID: 34899328 PMCID: PMC8651620 DOI: 10.3389/fphar.2021.772635] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 11/05/2021] [Indexed: 12/15/2022] Open
Abstract
Liver fibrosis is a progressive liver damage condition caused by various factors and may progress toward liver cirrhosis, and even hepatocellular carcinoma. Many studies have found that the disfunction in metabolism could contribute to the development of liver fibrosis. Geniposide, derived from Gardenia jasminoides J. Ellis, has been demonstrated with therapeutic effects on liver fibrosis. However, the exact molecular mechanisms of such liver-protection remain largely unknown. The aim of this study was to explored the effect of geniposide on metabolic regulations in liver fibrosis. We used carbon tetrachloride (CCl4) to construct a mouse model of liver fibrosis and subsequently administered geniposide treatment. Therapeutic effects of geniposide on liver fibrosis were accessed through measuring the levels of hepatic enzymes in serum and the pathological changes in liver. We also investigated the effects of geniposide on inflammatory response, oxidative stress and apoptosis in liver. Furthermore, serum untargeted metabolomics were used to explore the metabolic regulatory mechanisms behind geniposide on liver fibrosis. Our results demonstrated that geniposide could reduce the levels of hepatic enzymes in serum and ameliorate the pathological changes in liver fibrosis mice. Geniposide enhanced the activities of superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) and decreased methane dicarboxylic aldehyde (MDA) levels in liver. Geniposide treatment also decreased the levels of interleukin (IL)-6, IL-1β, and tumor necrosis factor-alpha (TNF-a) in liver tissue homogenate. Terminal deoxynucleotidyl transferase-mediated dUTP-biotin nick end labeling assay (TUNEL) staining demonstrated that geniposide could reduce the apoptosis of hepatocytes. Geniposide increased the protein expression of B-cell lymphoma-2 (Bcl-2) and downregulated the protein expression of Bcl-2 Associated X (Bax), cleaved-Caspase 3, and cleaved-Caspase 9. Serum untargeted metabolomics analysis demonstrated that geniposide treatment improved the metabolic disorders including glycerophospholipid metabolism, arginine and proline metabolism, and arachidonic acid (AA) metabolism. In conclusion, our study demonstrated the protective effects of geniposide on liver fibrosis. We found that geniposide could treat liver fibrosis by inhibiting oxidative stress, reducing inflammatory response and apoptosis in the liver, and modulating glycerophospholipid, and arginine, proline, and AA metabolism processes.
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Affiliation(s)
- Lu Yang
- Tianjin University of Traditional Chinese Medicine, Tianjin, China.,Tianjin Second People's Hospital, Tianjin, China
| | - Liping Bi
- Tianjin Second People's Hospital, Tianjin, China
| | - Lulu Jin
- Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yuming Wang
- Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yuting Li
- Tianjin University of Traditional Chinese Medicine, Tianjin, China.,First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Zixuan Li
- Yunnan Provincial Hospital of Traditional Chinese Medicine, Kunming, China
| | - Wenju He
- Tianjin First Central Hospital, Tianjin, China
| | - Huantian Cui
- Shandong Provincial Key Laboratory of Animal Cell and Developmental Biology, School of Life Sciences, Shandong University, Qingdao, China
| | - Jing Miao
- Tianjin Second People's Hospital, Tianjin, China
| | - Li Wang
- Tianjin Second People's Hospital, Tianjin, China
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6
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Jiang H, Li Y, Xiang X, Tang Z, Liu K, Su Q, Zhang X, Li L. Chaetocin: A review of its anticancer potentials and mechanisms. Eur J Pharmacol 2021; 910:174459. [PMID: 34464601 DOI: 10.1016/j.ejphar.2021.174459] [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: 06/05/2021] [Revised: 08/17/2021] [Accepted: 08/26/2021] [Indexed: 10/20/2022]
Abstract
Chaetocin is a natural metabolite product with various biological activities and pharmacological functions isolated from Chaetomium species fungi belonging to the thiodiketopyrazines. Numerous studies have demonstrated a wide range of antitumor activities of chaetocin in vitro and in vivo. Several studies have demonstrated that chaetocin suppresses the growth and proliferation of various tumour cells by regulating multiple signalling pathways related to tumour initiation and progression, inducing cancer cell apoptosis (intrinsic and extrinsic), enhancing autophagy, inducing cell cycle arrest, and inhibiting tumour angiogenesis, invasion, and migration. The antitumor effects and molecular mechanisms of chaetocin are reviewed and analysed in this paper, and the prospective applications of chaetocin in cancer prevention and therapy are also discussed. This review aimed to summarize the recent advances in the antitumor activity of chaetocin and to provide a rationale for further exploring the potential application of chaetocin in overcoming cancer in the future.
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Affiliation(s)
- Hangyu Jiang
- Department of Pharmacy, The Second Clinical Medical College of North Sichuan Medical College, Nanchong, China; School of Pharmacy, North Sichuan Medical College, Nanchong, China
| | - Yuqi Li
- Department of Pharmacy, The Second Clinical Medical College of North Sichuan Medical College, Nanchong, China; School of Pharmacy, North Sichuan Medical College, Nanchong, China
| | - Xiaocong Xiang
- Institute of Tissue Engineering and Stem Cells, The Second Clinical Medical College of North Sichuan Medical College, Nanchong, China
| | - Zhili Tang
- Department of Pharmacy, The Second Clinical Medical College of North Sichuan Medical College, Nanchong, China
| | - Kang Liu
- Institute of Tissue Engineering and Stem Cells, The Second Clinical Medical College of North Sichuan Medical College, Nanchong, China
| | - Qiang Su
- Department of Pharmacy, The Second Clinical Medical College of North Sichuan Medical College, Nanchong, China
| | - Xiaofen Zhang
- Department of Urology, The Second Clinical Medical College of North Sichuan Medical College, Nanchong, China.
| | - Lin Li
- Department of Pharmacy, The Second Clinical Medical College of North Sichuan Medical College, Nanchong, China; College of Bioengineering, Chongqing University, Chongqing, China.
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7
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Liu XS, Bai XL, Wang ZX, Xu SY, Ma Y, Wang ZN. Nrf2 mediates the neuroprotective effect of isoflurane preconditioning in cortical neuron injury induced by oxygen-glucose deprivation. Hum Exp Toxicol 2021; 40:1163-1172. [PMID: 33508982 DOI: 10.1177/0960327121989416] [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] [Indexed: 11/17/2022]
Abstract
OBJECTIVE To investigate how nuclear factor-E2-related factor 2 (Nrf2) involved in the protective effect of isoflurane (Iso) preconditioning in oxygen glucose deprivation (OGD)-induced cortical neuron injury. METHODS Primary mouse cortical neurons were divided into Control, ML385 (an Nrf2 inhibitor), Iso, Iso + ML385, OGD, ML385 + OGD, Iso + OGD, and Iso + ML385 + OGD groups. Lactate dehydrogenase activity (LDH) release and oxidative stress indexes were quantified. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay was used to detect cell viability, Annexin V-FITC/propidium iodide (PI) staining to measure cell apoptosis, dichloro-dihydro-fluorescein diacetate (DCFH-DA) method to test reactive oxygen species (ROS), and quantitative reverse-transcription polymerase chain reaction (qRT-PCR) and Western blotting to evaluate genes and protein expression. RESULTS Iso preconditioning reduced LDH release and inhibited cell cytotoxicity in OGD-induced cortical neurons, which was abolished by ML385. Iso preconditioning increased the Nrf2 nuclear translocation in cortical neurons. Meanwhile, Iso decreased the OGD-induced apoptosis with the down-regulations of Bax and Caspase-3 and the up-regulation of Bcl-2, which was reversed by ML385. OGD enhanced the level of ROS and malondialdehyde (MDA) in cortical neurons, but reduced the activities of superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px), which were aggravated in ML385 + OGD group and mitigated in Iso + OGD group. No observable difference was found between OGD group and Iso + ML385 + OGD group regarding apoptosis-related proteins and oxidative stress-related indexes. CONCLUSION Iso preconditioning up-regulated Nrf2 level to play its protective role in OGD-induced mouse cortical neuron injury.
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Affiliation(s)
- X-S Liu
- Department of Anesthesiology, Fushun Mining Bureau General Hospital of Liaoning Health Industry Group, Fushun, Liaoning, China
| | - X-L Bai
- Department of Anesthesiology, Fushun Mining Bureau General Hospital of Liaoning Health Industry Group, Fushun, Liaoning, China
| | - Z-X Wang
- Department of Anesthesiology, Fushun Mining Bureau General Hospital of Liaoning Health Industry Group, Fushun, Liaoning, China
| | - S-Y Xu
- Department of Anesthesiology, Fushun Mining Bureau General Hospital of Liaoning Health Industry Group, Fushun, Liaoning, China
| | - Y Ma
- Department of Anesthesiology, Fushun Mining Bureau General Hospital of Liaoning Health Industry Group, Fushun, Liaoning, China
| | - Z-N Wang
- Department of Anesthesiology, Fushun Second People's Hospital, Fushun, Liaoning, China
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8
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Yu T, An Q, Cao XL, Yang H, Cui J, Li ZJ, Xiao G. GOLPH3 inhibition reverses oxaliplatin resistance of colon cancer cells via suppression of PI3K/AKT/mTOR pathway. Life Sci 2020; 260:118294. [PMID: 32818544 DOI: 10.1016/j.lfs.2020.118294] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 08/09/2020] [Accepted: 08/14/2020] [Indexed: 12/15/2022]
Abstract
OBJECTIVE To explore whether GOLPH3 regulated oxaliplatin (L-OHP) resistance of colon cancer cells via PI3K/AKT/mTOR pathway. METHODS HCT116/L-OHP cells were divided into Blank, Control/GOLPH3 shRNA, BEZ235 (a PI3K/AKT/mTOR inhibitor), and GOLPH3 + BEZ235 groups followed by the detection with MTT, soft agar colony formation, flow cytometry and TUNEL assays. Mice bearing HCT116/L-OHP xenografts were randomized into Control, L-OHP, NC/GOLPH3 shRNA, L-OHP + NC/GOLPH3 shRNA groups. The expressions of Ki67, Caspase-3, and PI3K/AKT/mTOR pathway proteins were examined by immunohistochemistry. RESULTS HCT116/L-OHP cells had increased GOLPH3 expression compared to HCT116 cells, which positively regulated PI3K/AKT/mTOR pathway in HCT116/L-OHP cells. BEZ235 declined IC50 of HCT116/L-OHP cells to L-OHP, decreased the expressions of ABCB1, ABCC1, ABCG2, ATP7A, ATP7B, MATE1, p-gp, MRP1 and BCRP, induced cell apoptosis, reduced cell proliferation, and arrested cells at G0/G1, which was reversed by GOLPH3 overexpression. L-OHP and GOLPH3 shRNA decreased tumor volume and reduced expression of Ki67 in tumor tissues with the increased Caspase-3. Meanwhile, the combined treatment had the better treatment effect. CONCLUSION GOLPH3 inhibition reduced proliferation and promoted apoptosis of HCT116/L-OHP cells, and also reversed the L-OHP resistance of HCT116/L-OHP, which may be associated with the suppression of P13K/AKT/mTOR pathway.
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Affiliation(s)
- Tao Yu
- Department of General Surgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, PR China
| | - Qi An
- Department of General Surgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, PR China
| | - Xiang-Long Cao
- Department of General Surgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, PR China
| | - Hua Yang
- Department of General Surgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, PR China
| | - Jian Cui
- Department of General Surgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, PR China
| | - Zi-Jian Li
- Department of General Surgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, PR China
| | - Gang Xiao
- Department of General Surgery, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing 100730, PR China.
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9
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Wang C, Yu H, Wei L, Zhang J, Hong M, Chen L, Dong X, Fu L. Protective effect of cholecystokinin octapeptide on angiotensin II-induced apoptosis in H9c2 cardiomyoblast cells. J Cell Biochem 2020; 121:3560-3569. [PMID: 31886572 DOI: 10.1002/jcb.29639] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 12/11/2019] [Indexed: 12/20/2022]
Abstract
Cholecystokinin (CCK) and its receptors are expressed in mammalian cardiomyocytes and are involved in cardiovascular system regulation; however, the exact effect and underlying mechanism of CCK in cardiomyocyte apoptosis remain to be elucidated. We examined whether sulfated CCK octapeptide (CCK-8) protects H9c2 cardiomyoblast cells against angiotensin II (Ang II)-induced apoptosis. The H9c2 cardiomyoblasts were subjected to Ang II with or without CCK-8 and the viability and apoptotic rate were detected using a Cell Counting Kit-8 assay, Hoechst 33342 staining, terminal deoxyribonucleotide transferase-mediated nick-end labeling assays, and flow cytometry. In addition, specific antiapoptotic mechanisms of CCK-8 were investigated using specific CCK1 (Devazepide) or CCK2 (L365260) receptor antagonists, or the PI3K inhibitor LY294002. The expression of CCK, CCK1 receptor, CCK2 receptor, Akt, p-Akt, Bad, p-Bad, Bax, Bcl-2, and caspase-3 were detected by Western blot analysis and real-time polymerase chain reaction. We found that CCK and its receptor messenger RNA (mRNA) and protein are expressed in H9c2 cardiomyoblasts. Ang II-induced increased levels of CCK mRNA and protein expression and decreased levels of CCK1 receptor protein and mRNA. Pretreatment of CCK-8 attenuated Ang II-induced cell toxicity and apoptosis. In addition, pretreatment of H9c2 cells with CCK-8 markedly induced expression of p-Akt, p-bad, and Bcl-2 and decreased the expression levels of Bax and caspase-3. The protective effects of CCK-8 were partly abolished by Devazepide or LY294002. Our results suggest that CCK-8 protects H9c2 cardiomyoblasts from Ang II-induced apoptosis partly via activation of the CCK1 receptor and the phosphatidyqinositol-3 kinase/protein kinase B (PI3K/Akt) signaling pathway.
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Affiliation(s)
- Can Wang
- Laboratory of Cardiovascular Internal Medicine Department, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Huan Yu
- Department of Anesthesiology, The Fifth Hospital of Harbin City, Harbin, China
| | - Limu Wei
- Department of Internal Medicine, The First People's Hospital of Nanning, Nanning, China
| | - Jingqi Zhang
- Laboratory of Cardiovascular Internal Medicine Department, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Mingyang Hong
- Laboratory of Cardiovascular Internal Medicine Department, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Lin Chen
- Laboratory of Cardiovascular Internal Medicine Department, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xiaoying Dong
- Laboratory of Cardiovascular Internal Medicine Department, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Lu Fu
- Laboratory of Cardiovascular Internal Medicine Department, The First Affiliated Hospital of Harbin Medical University, Harbin, China
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10
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Hu S, Liu H, Hu Z, Li L, Yang Y. Follistatin-like 1: A dual regulator that promotes cardiomyocyte proliferation and fibrosis. J Cell Physiol 2020; 235:5893-5902. [PMID: 32017077 DOI: 10.1002/jcp.29588] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 01/13/2020] [Indexed: 12/14/2022]
Abstract
Follistatin-like 1 (FSTL1) is a key factor in maintaining cardiac growth and development. It can be activated by exercise training and has a dual role in promoting cardiomyocyte proliferation and fibrosis, but its underlying mechanism is not fully understood. To elucidate the dual mechanism and target of FSTL1 regulating of cardiomyocyte proliferation and myocardial fibrosis, and the mechanism by which exercise-regulated FSTL1 improves cardiovascular disease, we explored the signal transduction pathway of FSTL1 promoting cardiomyocyte proliferation and fibrosis, and compared the effects of different modes of exercise on the dual role of FSTL1. We believe that the dual role of promoting cardiomyocyte proliferation and fibrosis may be related to the ratio of cardiomyocyte and myocardial interstitial cell proliferation, different stages of the disease, different degrees of fibrosis, immune repair process, and transforming growth factor-β activation. Compared with long-term excessive endurance exercise, moderate resistance exercise can activate cardiomyocyte proliferation pathway through FSTL1, which is one of the effective ways to prevent cardiovascular disease.
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Affiliation(s)
- Siyuan Hu
- Graduate School, Wuhan Sports University, Wuhan, China.,School of Sports Art, Hunan University of Chinese Medicine, Changsha, China
| | - Hua Liu
- College of Health Science, Wuhan Sports University, Wuhan, China
| | - Zhixi Hu
- Institute of Chinese Medicine Diagnosis, Hunan University of Chinese Medicine, Changsha, China
| | - Lin Li
- Institute of Chinese Medicine Diagnosis, Hunan University of Chinese Medicine, Changsha, China
| | - Yi Yang
- College of Health Science, Wuhan Sports University, Wuhan, China
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11
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Zhang S, Wang Y. Network Pharmacology Approach Reveals the Potential Immune Function Activation and Tumor Cell Apoptosis Promotion of Xia Qi Decoction in Lung Cancer. Med Sci (Basel) 2019; 8:E1. [PMID: 31905767 PMCID: PMC7151561 DOI: 10.3390/medsci8010001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 12/19/2019] [Accepted: 12/24/2019] [Indexed: 02/07/2023] Open
Abstract
As the leading cause of cancer death worldwide, lung cancer (LC) has seriously affected human health and longevity. Chinese medicine is a complex system guided by traditional Chinese medicine theories (TCM). Nowadays, the clinical application of TCM for LC patients has become the focus for its effectiveness and security. In this paper, we will analyze and study the mechanism of Xia Qi Decoction (XQD) in the treatment of LC. The results collectively show that XQD could act on 41 therapeutic targets of LC. At the same time, 8 of 41 targets were significantly expressed in immune tissues and cells by activating CD8+T cells to promote apoptosis of cancer cells. It reveals the molecular mechanism of XQD in the treatment of LC from the perspective of network pharmacology. In addition, in the treatment of LC, XQD can activate (up-regulate) the function of immune cells, promote the apoptosis of tumor cells, and have an active anti-tumor immune effect. In conclusion, this study reveals the unique advantages of traditional Chinese medicine in the treatment of cancer, in reinforcing the healthy qi and eliminating the pathogenic factors. More research, however, is needed to verify the potential mechanisms.
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Affiliation(s)
| | - Yun Wang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 10029, China;
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12
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Ma X, Liang AL, Liu YJ. Research progress on the relationship between lung cancer drug-resistance and microRNAs. J Cancer 2019; 10:6865-6875. [PMID: 31839821 PMCID: PMC6909942 DOI: 10.7150/jca.31952] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Accepted: 09/13/2019] [Indexed: 02/07/2023] Open
Abstract
Lung cancer, a malignant tumor with the highest death rate of cancer, seriously endangers human health. And its pathogenesis and mechanism of drug resistance has been partially clarified, especially for the signal pathway of epidermal growth factor receptor (EGFR). The targeting therapy of EGFR signaling pathway in non-small cell lung cancer (NSCLC) has achieved a certain effect, but the two mutation of EGFR and other mechanisms of lung cancer resistance still greatly reduce the therapeutic effect of chemotherapy on it. MicroRNA is an endogenous non coding RNA, which has a regulatory function after transcriptional level. Recent studies on the mechanism of lung cancer resistance have found that a variety of microRNAs are related to the mechanism of lung cancer drug-resistance. They can regulate lung cancer resistance by participating in signal pathways, drug resistance genes and cell apoptosis, thus affecting the sensitivity of cancer cells to drugs. Therefore, microRNAs can be used as a specific target for the treatment of lung cancer and plays a vital role in the early diagnosis, prognosis and treatment of lung cancer. This article reviews the mechanisms of lung cancer resistance and its relationship with microRNAs.
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Affiliation(s)
| | | | - Yong-Jun Liu
- Medical Molecular Diagnostics Key Laboratory of Guangdong & Departments of Biochemistry and Molecular Biology & Departments of Clinical Biochemistry, Guangdong Medical University, 523808, Dongguan, Guangdong, P.R. China
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13
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Ye K, Wei QY, Long TX, He HG, Huang YF, Xiong LJ, Lan J, Huang YY, Gong ZF, Peng XM, Wu QX. Norcantharidin Enhances High Concentrations of Fetal Bovine Serum-Induced Apoptosis in Human Mesangial Cells by Regulating the Mitogen-Activated Protein Kinase Signaling Pathway. Kidney Blood Press Res 2019; 44:1339-1351. [PMID: 31661692 DOI: 10.1159/000502524] [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: 05/09/2019] [Accepted: 08/06/2019] [Indexed: 11/19/2022] Open
Abstract
AIM This study aimed to investigate the effect of norcantharidin (NCTD) on human mesangial cells (HMCs) apoptosis in vitro and further examine its molecular mechanism. METHODS HMCs were divided into 5 groups: control group, 25% fetal bovine serum (FBS)-treated group, and NCTD groups (NCTD [2.5, 5 and 10 µg/mL] + 25% FBS, respectively). Cell proliferation was determined by MTT assay, while apoptosis was evaluated by Hoechest 33258 staining, the level of cytochrome c, immunohistochemistry, and apoptotic-related proteins/gene expression. RESULTS Cell viability was inhibited in NCTD-treated HMCs in a dose-dependent manner. The number of apoptotic cells and the content of cytochrome c were significantly increased by NCTD treatment but that of mitochondrial membrane was decreased. Moreover, the expression of bcl-2 and caspase-3 was prompted by NCTD, but the expression of bax, MMP-2, and MMP-9 in 25% FBS-treated HMCs was inhibited. In addition, NCTD markedly unregulated the expression of apoptosis-related gene/protein, including p-Erk1/2, phosphorylated-Jun N-terminal kinase (JNK), p-p38, and p53. CONCLUSION NCTD enhances 25% FBS-treated HMC apoptosis in vitro, and this effect may be attributed to the modulation of the ERK, JNK, and p38 mitogen-activated protein kinase signaling pathways.
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Affiliation(s)
- Kun Ye
- Department of Nephrology, The People's Hospital of Guangxi Zhuang Autonomous Region, Qingxiu, China
| | - Qiao-Yu Wei
- Department of Nephrology, The People's Hospital of Guangxi Zhuang Autonomous Region, Qingxiu, China
| | - Teng-Xiang Long
- Department of Sci-Tech Novelty Retrieval, Guangxi Medical Information Institute, Qingxiu, China
| | - Hong-Guang He
- Department of Nephrology, The People's Hospital of Guangxi Zhuang Autonomous Region, Qingxiu, China
| | - Yun-Feng Huang
- Department of Nephrology, The People's Hospital of Guangxi Zhuang Autonomous Region, Qingxiu, China
| | - Li-Jia Xiong
- Department of Nephrology, The People's Hospital of Guangxi Zhuang Autonomous Region, Qingxiu, China
| | - Jiao Lan
- Department of Nephrology, The People's Hospital of Guangxi Zhuang Autonomous Region, Qingxiu, China
| | - Yi-Yun Huang
- Department of Nephrology, The People's Hospital of Guangxi Zhuang Autonomous Region, Qingxiu, China
| | - Zhi-Feng Gong
- Department of Nephrology, The People's Hospital of Guangxi Zhuang Autonomous Region, Qingxiu, China
| | - Xiao-Mei Peng
- Department of Nephrology, The People's Hospital of Guangxi Zhuang Autonomous Region, Qingxiu, China,
| | - Qiu-Xia Wu
- Department of Nephrology, The People's Hospital of Guangxi Zhuang Autonomous Region, Qingxiu, China
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14
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Zhang Y, Zhang Q, Wei F, Liu N. Progressive study of effects of erianin on anticancer activity. Onco Targets Ther 2019; 12:5457-5465. [PMID: 31371985 PMCID: PMC6628150 DOI: 10.2147/ott.s200161] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Accepted: 05/18/2019] [Indexed: 01/21/2023] Open
Abstract
Erianin is the major bisbenzyl compound extracted from the traditional Chinese medicine Dendrohium chrysotoxum Lindl. Erianin possesses many biological properties relevant to cancer prevention and therapy. The previous studies confirmed that antitumor effects of erianin are regulated with multiple signaling pathways. The mechanisms of erianin are numerous, and most of them induce cancer cell apoptosis that may be intrinsic or extrinsic and modulate the ROS/JNK signaling pathways. Invasion, migration, and angiogenesis represent emerging targets of erianin and support its anticancer properties. This review aimed to summarize the recent advances in the antitumor activity of erianin and to provide a rationale for further exploring the potential application of erianin in overcoming cancer in the future.
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Affiliation(s)
- Yuying Zhang
- School of Biological Science and Technology, University of Jinan, Jinan 250022, People's Republic of China
| | - Qianqian Zhang
- School of Biological Science and Technology, University of Jinan, Jinan 250022, People's Republic of China
| | - Fanhua Wei
- College of Agriculture, Ningxia University, Yinchuan 750021, People's Republic of China
| | - Na Liu
- School of Biological Science and Technology, University of Jinan, Jinan 250022, People's Republic of China
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15
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Hou M, Huang Z, Chen S, Wang H, Feng T, Yan S, Su Y, Zuo G. Synergistic antitumor effect of suberoylanilide hydroxamic acid and cisplatin in osteosarcoma cells. Oncol Lett 2018; 16:4663-4670. [PMID: 30197679 DOI: 10.3892/ol.2018.9224] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2016] [Accepted: 10/20/2017] [Indexed: 11/06/2022] Open
Abstract
Cisplatin, as a first-line chemotherapy drug, has been widely applied for therapy of osteosarcoma. However, its application is limited by drug resistance and serious side effects, including nephrotoxicity and ototoxicity. Suberoylanilide hydroxamic acid (SAHA) is a newly developed histone deacetylase (HDAC) inhibitor, which is the first Food and Drug Administration-approved HDAC inhibitor for the treatment of cutaneous manifestations of T-cell lymphoma. However, SAHA as a monotherapy was revealed to be limited, particularly in solid tumors. In the present study, 143B osteosarcoma cells were treated with multiple concentrations of SAHA or cisplatin, either alone or combined. The morphological characteristics of the treated cells were observed using an inverted microscope. The cytotoxicity effects of the combination of SAHA and cisplatin on 143B cells were analyzed by MTT assay, colony formation assay, wound healing cell migration assay, cell apoptosis assay and cell cycle analysis. Western blot analysis was performed to detect the protein expression levels of B cell lymphoma-2 (Bcl-2)-associated X protein (Bax), Bcl-2, cleaved-caspase-3, cleaved-caspase-8 and cleaved-poly (ADP-ribose) polymerase (PARP). The experimental data indicated that the inhibition of cell proliferation in the combination group was significantly increased compared with that in single drug groups. Expression levels of pro-apoptotic protein were upregulated, whereas anti-apoptotic Bcl-2 was downregulated significantly in 143B cells following SAHA/cisplatin treatment. Taken together, the results revealed that the combination of SAHA and cisplatin inhibited the proliferation of 143B cells and induced their apoptosis synergistically, and this effectiveness may be mediated by caspase activation.
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Affiliation(s)
- Mengyi Hou
- Key Laboratory of Diagnostic Medicine Designated by The Chinese Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Zhenglan Huang
- Key Laboratory of Diagnostic Medicine Designated by The Chinese Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Sicheng Chen
- Department of Clinical Medicine, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Hao Wang
- Key Laboratory of Diagnostic Medicine Designated by The Chinese Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Tianyu Feng
- Key Laboratory of Diagnostic Medicine Designated by The Chinese Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Shujuan Yan
- Key Laboratory of Diagnostic Medicine Designated by The Chinese Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Yuxi Su
- Key Laboratory of Child Development and Disorders of Ministry of Education, Department II of Orthopedics, The Children's Hospital of Chongqing Medical University, Chongqing 400014, P.R. China
| | - Guowei Zuo
- Key Laboratory of Diagnostic Medicine Designated by The Chinese Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, P.R. China
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16
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Lu Y, Zhang R, Wang Z, Zhou S, Song Y, Chen L, Chen N, Liu W, Ji C, Wu W, Zhang L. Mechanistic effect of the human GJB6 gene and its mutations in HaCaT cell proliferation and apoptosis. ACTA ACUST UNITED AC 2018; 51:e7560. [PMID: 30043857 PMCID: PMC6065815 DOI: 10.1590/1414-431x20187560] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 05/24/2018] [Indexed: 11/22/2022]
Abstract
We constructed lentiviral vectors containing the human wild-type GJB6 gene and the mutant variants A88V and G11R. The three proteins were stably expressed by the Tet-on system in the HaCaT cell line and used to study the functional effect of the variants. The CCK-8 assay and flow cytometric analyses were used to determine the levels of cell proliferation and apoptosis. Western blot analyses were performed to analyze the relevant clinical indicators of hidrotic ectodermal dysplasia and markers of apoptosis in transfected HaCaT cells. The CCK8 assay and the flow cytometry results showed a significant increase (P<0.05) in the apoptosis of HaCaT cells expressing the A88V and G11R mutants. In addition, we demonstrated that the A88V and G11R mutants induced the apoptosis of transfected HaCaT cells via the activation of caspase-3, -8, -9, and PARA. No change was observed in the activity of BAX compared with the control. This study provides further clarification on the mechanisms underlying the effect of the mutant variants A88V and G11R of the GJB6 gene on the induction of HaCaT cell apoptosis.
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Affiliation(s)
- Yuting Lu
- Department of Dermatology, Huadu District People's Hospital of Guangzhou, Guangzhou, China.,Department of Dermatology, Shandong Provincial Hospital affiliated to Shandong University, Jinan, China
| | - Ruili Zhang
- Department of Dermatology, Weihai Municipal Hospital, Yantai, China
| | - Zhenying Wang
- Department of Dermatology, Shandong Provincial Hospital affiliated to Shandong University, Jinan, China
| | - Shuhua Zhou
- Department of Dermatology, Shandong Provincial Hospital affiliated to Shandong University, Jinan, China
| | - Yali Song
- Department of Dermatology, Shandong Provincial Hospital affiliated to Shandong University, Jinan, China
| | - Lamei Chen
- Department of Dermatology, Shandong Provincial Hospital affiliated to Shandong University, Jinan, China
| | - Nan Chen
- Department of Dermatology, Shandong Provincial Hospital affiliated to Shandong University, Jinan, China
| | - Wenmin Liu
- Department of Dermatology, Shandong Provincial Hospital affiliated to Shandong University, Jinan, China
| | - Canan Ji
- Department of Dermatology, Shandong Provincial Hospital affiliated to Shandong University, Jinan, China
| | - Wangli Wu
- Department of Dermatology, Shandong Provincial Hospital affiliated to Shandong University, Jinan, China
| | - Li Zhang
- Department of Dermatology, Shandong Provincial Hospital affiliated to Shandong University, Jinan, China
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17
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Fang Y, Ning A, Li S, Zhou S, Liu L, Joseph TP, Zhong M, Jiao J, Zhang W, Shi Y, Zhang M, Huang M. Polysaccharides Extracted from Rhizoma Pleionis Have Antitumor Properties In Vitro and in an H22 Mouse Hepatoma Ascites Model In Vivo. Int J Mol Sci 2018; 19:E1386. [PMID: 29735884 PMCID: PMC5983843 DOI: 10.3390/ijms19051386] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Revised: 04/23/2018] [Accepted: 04/24/2018] [Indexed: 02/06/2023] Open
Abstract
Malignant ascites is a highly severe and intractable complication of advanced or recurrent malignant tumors that is often immunotherapy-resistant. Rhizoma Pleionis is widely used in traditional medicine as an antimicrobial and anticancer agent, but its effectiveness in treating malignant ascites is unclear. In the current study, we investigated the effect of polysaccharides isolated from Rhizoma Pleionis (PRP) on murine hepatocarcinoma H22 cells in an ascites model. We have found that the main components of PRP, that presented a relative molecular weight of 383.57 kDa, were mannose and glucose. We also found that PRP reduced the occurrence of abdominal ascites and increased survival in our mouse model. An immune response in the ascites tumor model was observed by performing a lymphocytes proliferation experiment and an E-rosette test. The ratios of CD8+ cytotoxic T cells and NK cells in the spleen were examined by flow cytometry, and the mRNA expression of Foxp3+in CD4⁺CD25⁺ (T regulatory Tregs) was measured by RT-PCR (reverse transcription-polymerase chain reaction). The levels of the cytokines TNF-α (tumor necrosis factor), VEGF (vascular endothelial growth factor), IL-2 (interleukin), and IFN-γ (interferon) in the serum and ascites supernatants were measured by ELISA. The expression of Foxp3 and Stat3 in peritoneal cells in the mouse model was measured by immunocytochemistry. The results indicated that PRP increased H22 tumor cell apoptosis in vivo by activating and enhancing the immune response. Furthermore, the effects of PRP on the proliferation of H22 cells were assessed by the CCK8 assay, Hoechest 33258, and TUNEL staining in vitro. We found that PRP suppressed the proliferation of H22 tumor cells but had no effect on BRL (Big rat liver) -3A rat hepatoma normal cells in vitro. Next, we investigated the underlying immunological mechanism by which PRP inhibits malignant ascites. PRP induced tumor cell apoptosis by inhibiting the Jak1⁻Stat3 pathway and by activating Caspase-3 and Caspase-8 to increase the Bax/Bcl-2 ratio. Collectively, our results indicate that PRP exhibits significant antitumor properties in H22 cells in vivo and in vitro, indicating that PRP may be used as a new therapeutic drug for cancer treatment.
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Affiliation(s)
- Yukun Fang
- Department of Microbiology, Dalian Medical University, Dalian 116044, China.
| | - Anhong Ning
- Department of Microbiology, Dalian Medical University, Dalian 116044, China.
| | - Sha Li
- Department of Microbiology, Dalian Medical University, Dalian 116044, China.
| | - Shaozheng Zhou
- Department of Microbiology, Dalian Medical University, Dalian 116044, China.
| | - Lei Liu
- Department of Microbiology, Dalian Medical University, Dalian 116044, China.
| | | | - Mintao Zhong
- Department of Microbiology, Dalian Medical University, Dalian 116044, China.
| | - Jilong Jiao
- Department of Microbiology, Dalian Medical University, Dalian 116044, China.
| | - Wei Zhang
- Department of Microbiology, Dalian Medical University, Dalian 116044, China.
| | - Yonghui Shi
- Department of Microbiology, Dalian Medical University, Dalian 116044, China.
| | - Meishan Zhang
- Department of Microbiology, Dalian Medical University, Dalian 116044, China.
| | - Min Huang
- Department of Microbiology, Dalian Medical University, Dalian 116044, China.
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18
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Lu Z, Xu H, Yu X, Wang Y, Huang L, Jin X, Sui D. 20(S)-Protopanaxadiol induces apoptosis in human hepatoblastoma HepG2 cells by downregulating the protein kinase B signaling pathway. Exp Ther Med 2018; 15:1277-1284. [PMID: 29434714 PMCID: PMC5776618 DOI: 10.3892/etm.2017.5594] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Accepted: 10/26/2017] [Indexed: 02/07/2023] Open
Abstract
Hepatoblastoma is the most common primary liver tumor for children aged <5 years old. 20(S)-Protopanaxadiol (PPD) is a ginsenoside extracted from Pananx quinquefolium L., which inhibits tumor growth in several cancer cell lines. The purpose of the present study was to assess the anticancer activities of 20(S)-PPD in human hepatoblastoma HepG2 cells. The cytotoxicity of 20(S)-PPD on HepG2 cells was evaluated using an MTT assay. Apoptosis was detected using DAPI staining and flow cytometry. The expression of apoptosis-associated proteins was identified by western blotting. The results demonstrated that 20(S)-PPD inhibited the viability of HepG2 cell in a dose and time-dependent manner. The IC50 values were 81.35, 73.5, 48.79 µM at 24, 48 and 72 h, respectively. Topical morphological changes of apoptotic body formation following 20(S)-PPD treatment were detected by DAPI staining. The percentage of Annexin V-fluoroscein isothyiocyanate positive cells were 3.73, 17.61, 23.44 and 65.43% in HepG2 cells treated with 0, 40, 50 and 60 µM of 20(S)-PPD, respectively. Furthermore, 20(S)-PPD upregulated the expression of Bax and downregulated the expression of Bcl-2 and also activated caspases-3 and −9, and Poly [ADP-ribose] polymerase cleavage. In addition, 20(S)-PPD inhibited the phosphorylation of protein kinase B (Akt; Ser473). The results indicate that 20(S)-PPD inhibits the viability of HepG2 cells and induces apoptosis in HepG2 cells by inhibiting the phosphoinositide-3-kinase/Akt pathway.
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Affiliation(s)
- Zeyuan Lu
- Department of Pharmacology, School of Pharmaceutical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Huali Xu
- Department of Pharmacology, School of Pharmaceutical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Xiaofeng Yu
- Department of Pharmacology, School of Pharmaceutical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Yuchen Wang
- Department of Pharmacology, School of Pharmaceutical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Long Huang
- Department of Pharmacology, School of Pharmaceutical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Xin Jin
- Department of Pharmacology, School of Pharmaceutical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Dayun Sui
- Department of Pharmacology, School of Pharmaceutical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
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19
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Pei Z, Hu J, Bai Q, Liu B, Cheng D, Liu H, Na R, Yu Q. Thymoquinone protects against cardiac damage from doxorubicin-induced heart failure in Sprague-Dawley rats. RSC Adv 2018; 8:14633-14639. [PMID: 35540763 PMCID: PMC9081863 DOI: 10.1039/c8ra00975a] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 03/26/2018] [Indexed: 11/28/2022] Open
Abstract
Heart failure is a complex end stage result of various cardiovascular diseases, and has a poor prognosis. The mechanisms for the development and progression of heart failure have always been an important topic in cardiovascular research, and previous studies have shown that thymoquinone (TQ) protects against cardiotoxicity and cardiac damage. The aim of this study was to investigate the possible protective effects of thymoquinone against cardiac damage in doxorubicin (DOX)-induced heart failure in Sprague-Dawley Rats (SDR). Forty-five male SDR were randomly divided into three groups and administered different treatment regimens for 8 weeks. Left ventricular fractional shortening (LVFS) and ejection fraction (LVEF) were higher in the DOX + TQ group than those in the DOX group. Significant pathophysiology changes (HE and Masson staining) were observed in rats of the DOX group compared to those of the DOX + TQ group. The addition of Thymoquinone inhibited DOX-induced cardiac fibrosis (TGF-β, Smad3, collagen I, collagen III, and α-SMA) and apoptosis (P53, bcl-2, caspase-3, caspase-9, and BAX) in SDR, indicating that thymoquinone may be a potential therapeutic target for cardiac damage caused by DOX-induced heart failure. Heart failure is a complex end stage result of various cardiovascular diseases, and has a poor prognosis.![]()
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Affiliation(s)
- Zuowei Pei
- Department of Cardiology
- Affiliated Zhongshan Hospital of Dalian University
- Dalian
- China
| | - Jiahui Hu
- Department of Cardiology
- Affiliated Zhongshan Hospital of Dalian University
- Dalian
- China
- Graduate School of Dalian Medical University
| | - Qianru Bai
- Department of Cardiology
- Affiliated Zhongshan Hospital of Dalian University
- Dalian
- China
- Graduate School of Dalian Medical University
| | - Baiting Liu
- International Medical Department
- Affiliated Zhongshan Hospital of Dalian University
- Dalian
- China
| | - Dong Cheng
- Department of Cardiology
- Affiliated Zhongshan Hospital of Dalian University
- Dalian
- China
| | - Hainiang Liu
- Department of Cardiology
- Affiliated Zhongshan Hospital of Dalian University
- Dalian
- China
| | - Rongmei Na
- Department of Cardiology
- Affiliated Zhongshan Hospital of Dalian University
- Dalian
- China
| | - Qin Yu
- Department of Cardiology
- Affiliated Zhongshan Hospital of Dalian University
- Dalian
- China
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20
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Chang H, Li C, Wang Q, Lu L, Zhang Q, Zhang Y, Zhang N, Wang Y, Wang W. QSKL protects against myocardial apoptosis on heart failure via PI3K/Akt-p53 signaling pathway. Sci Rep 2017; 7:16986. [PMID: 29209026 PMCID: PMC5717266 DOI: 10.1038/s41598-017-17163-x] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 10/19/2017] [Indexed: 12/20/2022] Open
Abstract
The ancient traditional Chinese medicine Qishenkeli (QSKL) is widely used in the treatment of heart failure (HF) in China. Previous studies have shown that QSKL has definite effects on HF. The purpose of this study is to identify the regulation of QSKL on apoptosis and clarify the underlying mechanism. An apoptosis model of H9C2 cells was induced by oxygen-glucose deprivation/recovery (OGD/R). An animal model of HF was induced by ligation of left anterior descending (LAD) coronary artery in rat. We found that QSKL reduced intracellular ROS generation, increased mitochondrial membrane potential and protected H9C2 cells against OGD/R-induced apoptosis. In vivo results showed that QSKL administration could improve cardiac functions, decrease fibrotic area, infarct size and apoptotic rate in HF model. QSKL regulated the expressions of key apoptotic molecules, including increasing Bcl-2/Bax ratio, reducing the expressions of P53, Bax and Cleaved-caspase-3. Interestingly, QSKL also regulated the phosphorylated expressions of PI3K and Akt without significantly affecting PTEN. Taken together, the protective and anti-apoptotic effects of QSKL could be mediated partly through modulating the PI3K/Akt-P53 apoptotic pathway.
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Affiliation(s)
- Hong Chang
- School of Life Sciences, Beijing University of Chinese Medicine, Bei San Huan Dong Lu 11, ChaoYang District, Beijing, 100029, China.,Traditional Chinese Medicine College, North China University of Science and Technology, No. 21 Bohai Road, Caofeidian New City, Tangshan, Hebei, 063210, China
| | - Chun Li
- Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, Bei San Huan Dong Lu 11, ChaoYang District, Beijing, 100029, China
| | - Qiyan Wang
- School of Life Sciences, Beijing University of Chinese Medicine, Bei San Huan Dong Lu 11, ChaoYang District, Beijing, 100029, China
| | - Linghui Lu
- School of Life Sciences, Beijing University of Chinese Medicine, Bei San Huan Dong Lu 11, ChaoYang District, Beijing, 100029, China
| | - Qian Zhang
- School of Life Sciences, Beijing University of Chinese Medicine, Bei San Huan Dong Lu 11, ChaoYang District, Beijing, 100029, China
| | - Yi Zhang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Bei San Huan Dong Lu 11, ChaoYang District, Beijing, 100029, China
| | - Na Zhang
- Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, Bei San Huan Dong Lu 11, ChaoYang District, Beijing, 100029, China
| | - Yong Wang
- School of Life Sciences, Beijing University of Chinese Medicine, Bei San Huan Dong Lu 11, ChaoYang District, Beijing, 100029, China.
| | - Wei Wang
- Beijing University of Chinese Medicine, Bei San Huan Dong Lu 11, ChaoYang District, Beijing, 100029, China.
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21
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Su ZQ, Liu YH, Guo HZ, Sun CY, Xie JH, Li YC, Chen JN, Lai XP, Su ZR, Chen HM. Effect-enhancing and toxicity-reducing activity of usnic acid in ascitic tumor-bearing mice treated with bleomycin. Int Immunopharmacol 2017; 46:146-155. [DOI: 10.1016/j.intimp.2017.03.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Revised: 03/02/2017] [Accepted: 03/03/2017] [Indexed: 01/22/2023]
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22
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ZGDHu-1 promotes apoptosis of mantle cell lymphoma cells. Oncotarget 2017; 8:11659-11675. [PMID: 28035065 PMCID: PMC5355294 DOI: 10.18632/oncotarget.14274] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2016] [Accepted: 11/30/2016] [Indexed: 11/25/2022] Open
Abstract
Mantle cell lymphoma (MCL) is a well-defined aggressive Non-Hodgkin-lymphoma with short survival rates and remains incurable to date. Previously, we demonstrated the antitumor activity of ZGDHu-1(N, N'-di-(m-methylphenyi)-3, 6-dimethyl-1, 4-dihydro-1, 2, 4, 5-tetrazine-1, 4-dicarboamide) in chronic lymphocytic leukemia. In this study, ZGDHu-1 shows potent anti-lymphoma activity in MCL cells. ZGDHu-1 significantly induces cell cycle G2/M phase arrest and apoptosis in MCL cells. ZGDHu-1 reduces the protein levels of Mcl-1, Bcl-XL and cyclin D1. Importantly, ZGDHu-1 inhibits TNFα-induced IkBa phosphorylation, p65 nuclear translocation and NF-kB downstream target gene expression in MCL cells. MCL samples expressing high levels of Bcl-2 and high Bcl-2/Bax ratios tend to be less effective to ZGDHu-1. Together, these results suggest that ZGDHu-1 could inhibit the NF-kB signaling pathway partly, which may lead to the suppression of cell proliferation and the induction of apoptosis in MCL cells. Thus, our studies provide evidence of the potential of ZGDHu-1 in treating mantle cell lymphoma.
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Mahendiran D, Kumar RS, Viswanathan V, Velmurugan D, Rahiman AK. Targeting of DNA molecules, BSA/c-Met tyrosine kinase receptors and anti-proliferative activity of bis(terpyridine)copper(ii) complexes. Dalton Trans 2016; 45:7794-814. [DOI: 10.1039/c5dt03831f] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The newly synthesized bis(terpyridine)copper(ii) complexes may act as DNA-targeting metallo-anticancer agents to overcome cisplatin resistance.
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Affiliation(s)
- Dharmasivam Mahendiran
- Post-Graduate and Research Department of Chemistry
- The New College (Autonomous)
- Chennai 600 014
- India
| | - Raju Senthil Kumar
- Department of Pharmaceutical Chemistry
- Swami Vivekanandha College of Pharmacy
- Tiruchengodu 637 205
- India
| | - Vijayan Viswanathan
- CAS in Crystallography and Biophysics
- University of Madras
- Guindy Campus
- Chennai 600 025
- India
| | - Devadasan Velmurugan
- CAS in Crystallography and Biophysics
- University of Madras
- Guindy Campus
- Chennai 600 025
- India
| | - Aziz Kalilur Rahiman
- Post-Graduate and Research Department of Chemistry
- The New College (Autonomous)
- Chennai 600 014
- India
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Guo XM, Chen B, Lv JM, Lei Q, Pan YJ, Yang Q. Knockdown of IRF6 Attenuates Hydrogen Dioxide-Induced Oxidative Stress via Inhibiting Mitochondrial Dysfunction in HT22 Cells. Cell Mol Neurobiol 2015; 36:1077-86. [PMID: 26620051 DOI: 10.1007/s10571-015-0301-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Accepted: 11/05/2015] [Indexed: 01/26/2023]
Abstract
Oxidative stress-induced cell damage is involved in many neurological diseases. Interferon regulatory factor 6 (IRF6), a member of the IRF family of transcription factors, is required for the differentiation of skin, breast epithelium, and oral epithelium. However, the regulation and function of IRF6 in central nervous system remain unknown. This study aimed to investigate the role of IRF6 in hydrogen peroxide (H2O2)-induced oxidative neuronal injury in HT22 mouse hippocampal cells. Treatment with H2O2 significantly increased the expression of IRF6 at both mRNA and protein levels, and knockdown of IRF6 using specific small interfering RNA reduced H2O2-induced cytotoxicity, as evidenced by increased cell viability and decreased apoptosis. Knockdown of IRF6 attenuated intracellular reactive oxygen species (ROS) generation and lipid peroxidation, and also preserved endogenous antioxidant enzyme activities. The inhibitory effect of IRF6 knockdown on mitochondrial dysfunction was demonstrated by reduced mitochondrial oxidative level, preserved mitochondrial membrane potential (MMP) and ATP generation, as well as attenuated mitochondrial swelling. In addition, down-regulation of IRF6 inhibited the activation of mitochondrial apoptotic factors, whereas IRF6 knockdown together with caspase inhibitors had no extra effect on cell viability and LDH release. These results suggest that knockdown of IRF6 has protective effects against H2O2-induced oxidative stress by reducing ROS accumulation and apoptosis, and these protective effects are dependent on preservation of mitochondrial function.
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Affiliation(s)
- Xiao-Min Guo
- Department of Neurology, Shaanxi Provincial People's Hospital, 256 Youyi West Road, Xi'an, 710068, Shaanxi, China
| | - Bo Chen
- Department of Neurosurgery, Shaanxi Provincial People's Hospital, Xi'an, 710068, Shaanxi, China
| | - Jian-Meng Lv
- Department of Neurology, Shaanxi Provincial People's Hospital, 256 Youyi West Road, Xi'an, 710068, Shaanxi, China
| | - Qi Lei
- Department of Neurology, Shaanxi Provincial People's Hospital, 256 Youyi West Road, Xi'an, 710068, Shaanxi, China
| | - Ya-Juan Pan
- Department of Neurology, Shaanxi Provincial People's Hospital, 256 Youyi West Road, Xi'an, 710068, Shaanxi, China
| | - Qian Yang
- Department of Neurology, Shaanxi Provincial People's Hospital, 256 Youyi West Road, Xi'an, 710068, Shaanxi, China.
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Wu L, Yang W, Zhang SN, Lu JB. Alpinetin inhibits lung cancer progression and elevates sensitization drug-resistant lung cancer cells to cis-diammined dichloridoplatium. Drug Des Devel Ther 2015; 9:6119-27. [PMID: 26604699 PMCID: PMC4655908 DOI: 10.2147/dddt.s92702] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
OBJECTIVE Alpinetin is a novel flavonoid that has demonstrated potent antitumor activity in previous studies. However, the efficacy and mechanism of alpinetin in treating lung cancer have not been determined. METHODS We evaluated the impact of different doses and durations of alpinetin treatment on the cell proliferation, the apoptosis of lung cancer cells, as well as the drug-resistant lung cancer cells. RESULTS This study showed that the alpinetin inhibited the cell proliferation, enhanced the apoptosis, and inhibited the PI3K/Akt signaling in lung cancer cells. Moreover, alpinetin significantly increased the sensitivity of drug-resistant lung cancer cells to the chemotherapeutic effect of cis-diammined dichloridoplatium. Taken together, this study demonstrated that alpinetin significantly suppressed the development of human lung cancer possibly by influencing mitochondria and the PI3K/Akt signaling pathway and sensitized drug-resistant lung cancer cells. CONCLUSION Alpinetin may be used as a potential compound for combinatorial therapy or as a complement to other chemotherapeutic agents when multiple lines of treatments have failed to reduce lung cancer.
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Affiliation(s)
- Lin Wu
- Department of Thoracic Surgery, Sheng Jing Hospital of China Medical University, Shenyang, People’s Republic of China
| | - Wei Yang
- Department of Thoracic Surgery, Sheng Jing Hospital of China Medical University, Shenyang, People’s Republic of China
| | - Su-ning Zhang
- Department of Thoracic Surgery, Sheng Jing Hospital of China Medical University, Shenyang, People’s Republic of China
| | - Ji-bin Lu
- Department of Thoracic Surgery, Sheng Jing Hospital of China Medical University, Shenyang, People’s Republic of China
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Abstract
PURPOSE Although an anti-tumor effect of emodin has been reported before, its effect on human gynecological cancer cells has so far not been studied. Here, we assessed the effect of emodin on cervical cancer-derived (Hela), choriocarcinoma-derived (JAR) and ovarian cancer-derived (HO-8910) cells, and investigated the possible underlying molecular and cellular mechanisms. METHODS AND RESULTS The respective cells were treated with 0, 5, 10 or 15 μM emodin for 72 h. Subsequently, MTT and Transwell in vitro migration assays revealed that emodin significantly decreased the viability and invasive capacity of the gynecological cancer-derived cells tested. We found that emodin induced apoptosis and significantly decreased mitochondrial membrane potential and ATP release in these cells. We also found that emodin may exert its apoptotic effects via regulating the activity of caspase-9 and the expression of cleaved-caspase-3. Moreover, we found that emodin induced a cell cycle arrest at the G0/G1 phase, possibly through down-regulating the key cell cycle regulators Cyclin D and Cyclin E. Interestingly, emodin also led to autophagic cell death, as revealed by increased MAP LC3 expression, a marker of the autophagosome, and decreased expression of the autophagy regulators Beclin-1 and Atg12-Atg5. Finally, we found that the protein levels of both VEGF and VEGFR-2 were significantly decreased in emodin-treated cells, suggesting an anti-angiogenic effect of emodin on gynecological cancer-derived cells. CONCLUSIONS Our results suggest that emodin exhibits an anti-tumor effect on gynecological cancer-derived cells, possibly through multiple mechanisms including the induction of apoptosis and autophagy, the arrest of the cell cycle, and the inhibition of angiogenesis. Our findings may provide a basis for the design of potential emodin-based strategies for the treatment of gynecological tumors.
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Mahendiran D, Gurumoorthy P, Gunasekaran K, Senthil Kumar R, Rahiman AK. Structural modeling, in vitro antiproliferative activity, and the effect of substituents on the DNA fastening and scission actions of heteroleptic copper(ii) complexes with terpyridines and naproxen. NEW J CHEM 2015. [DOI: 10.1039/c5nj01059d] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A new series of heteroleptic copper(ii) complexes with terpyridines and naproxen are reported. The results of biological activity are laying a foundation for the design of new anticancer agents.
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Affiliation(s)
- Dharmasivam Mahendiran
- Post-Graduate and Research Department of Chemistry
- The New College (Autonomous)
- Chennai-600 014
- India
| | - Perumal Gurumoorthy
- Post-Graduate and Research Department of Chemistry
- The New College (Autonomous)
- Chennai-600 014
- India
| | | | - Raju Senthil Kumar
- Department of Pharmaceutical Chemistry
- Swami Vivekanandha College of Pharmacy
- Tiruchengodu-637 205
- India
| | - Aziz Kalilur Rahiman
- Post-Graduate and Research Department of Chemistry
- The New College (Autonomous)
- Chennai-600 014
- India
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3-Bromopyruvate induces apoptosis in breast cancer cells by downregulating Mcl-1 through the PI3K/Akt signaling pathway. Anticancer Drugs 2014; 25:447-55. [PMID: 24492287 DOI: 10.1097/cad.0000000000000081] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The hexokinase inhibitor 3-bromopyruvate (3-BrPA) can inhibit glycolysis in tumor cells to reduce ATP production, resulting in apoptosis. However, as 3-BrPA is an alkylating agent, its cytotoxic action may be induced by other molecular mechanisms. The results presented here reveal that 3-BrPA-induced apoptosis is caspase independent. Further, 3-BrPA induces the generation of reactive oxygen species in MDA-MB-231 cells, leading to mitochondria-mediated apoptosis. These results suggest that caspase-independent apoptosis may be induced by the generation of reactive oxygen species. In this study, we also demonstrated that 3-BrPA induces apoptosis through the downregulation of myeloid cell leukemia-1 (Mcl-1) in MDA-MB-231 breast cancer cells. The results of Mcl-1 knockdown indicate that Mcl-1 plays an important role in 3-BrPA-induced apoptosis. Further, the upregulation of Mcl-1 expression in 3-BrPA-treated MDA-MB-231 cells significantly increases cell viability. In addition, 3-BrPA treatment resulted in the downregulation of p-Akt, suggesting that 3-BrPA may downregulate Mcl-1 through the phosphoinositide-3-kinase/Akt pathway. These findings indicate that 3-BrPA induces apoptosis in breast cancer cells by downregulating Mcl-1 through the phosphoinositide-3-kinase/Akt signaling pathway.
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Dai SH, Chen T, Wang YH, Zhu J, Luo P, Rao W, Yang YF, Fei Z, Jiang XF. Sirt3 attenuates hydrogen peroxide-induced oxidative stress through the preservation of mitochondrial function in HT22 cells. Int J Mol Med 2014; 34:1159-68. [PMID: 25090966 DOI: 10.3892/ijmm.2014.1876] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2014] [Accepted: 07/14/2014] [Indexed: 11/06/2022] Open
Abstract
Sirtuins (Sirt) are a family of phylogenetically conserved nicotinamide adenine nucleotide (NAD(+))-dependent protein deacetylases, among which Sirt3 resides primarily in the mitochondria and serves as a stress responsive deacetylase, playing a role in protecting cells from damage under stress conditions. The present study aimed to investigate the role of Sirt3 in hydrogen peroxide (H(2)O(2))-induced oxidative neuronal injury in HT22 mouse hippocampal cells. Treatment with H(2)O(2) increased the expression of Sirt3 in a dose- and time-dependent manner, and the knockdown of Sirt3 using specific small interfering RNA (siRNA) exacerbated the H(2)O(2)-induced neuronal injury. The overexpression of Sirt3 induced by lentiviral transfection significantly reduced the generation of reactive oxygen species (ROS) and lipid peroxidation following injury, whereas the activities of endogenous antioxidant enzymes were not affected. Further experiments revealed that the H(2)O(2)-induced inhibition of mitochondrial complex activity and adenosine triphosphate (ATP) synthesis, the decrease in mitochondrial Ca(2+) buffering capacity and mitochondrial swelling were all partly reversed by Sirt3. Furthermore, the overexpression of Sirt3 attenuated the release of cytochrome c, the increase in the Bax/Bcl-2 ratio, as well as caspase-9/caspase-3 activity induced by H(2)O(2), and eventually inhibited apoptotic neuronal cell death. These results suggest that Sirt3 acts as a prosurvival factor, playing an essential role in protecting HT22 cells under H(2)O(2)-induced oxidative stress, possibly by inhibiting ROS accumulation and the activation of the mitochondrial apoptotic pathway.
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Affiliation(s)
- Shu-Hui Dai
- Department of Neurosurgery, Xijing Institute of Clinical Neuroscience, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Tao Chen
- Department of Neurosurgery, Xijing Institute of Clinical Neuroscience, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Yu-Hai Wang
- Department of Neurosurgery, The 101th Hospital of PLA, Rescue Center of Craniocerebral Injuries of PLA, Wuxi, Jiangsu 214044, P.R. China
| | - Jie Zhu
- Department of Neurosurgery, The 101th Hospital of PLA, Rescue Center of Craniocerebral Injuries of PLA, Wuxi, Jiangsu 214044, P.R. China
| | - Peng Luo
- Department of Neurosurgery, Xijing Institute of Clinical Neuroscience, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Wei Rao
- Department of Neurosurgery, Xijing Institute of Clinical Neuroscience, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Yue-Fan Yang
- Department of Neurosurgery, Xijing Institute of Clinical Neuroscience, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Zhou Fei
- Department of Neurosurgery, Xijing Institute of Clinical Neuroscience, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Xiao-Fan Jiang
- Department of Neurosurgery, Xijing Institute of Clinical Neuroscience, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
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Aquilino C, Gonzalez Rubio ML, Seco EM, Escudero L, Corvo L, Soto M, Fresno M, Malpartida F, Bonay P. Differential trypanocidal activity of novel macrolide antibiotics; correlation to genetic lineage. PLoS One 2012; 7:e40901. [PMID: 22859958 PMCID: PMC3409201 DOI: 10.1371/journal.pone.0040901] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2012] [Accepted: 06/14/2012] [Indexed: 12/18/2022] Open
Abstract
Here we report the systematic study of the anti-trypanocidal activity of some new products derived from S. diastatus on 14 different T. cruzi strains spanning the six genetic lineages of T. cruzi. As the traditional growth inhibition curves giving similar IC(50) showed great differences on antibiotic and lineage tested, we decided to preserve the wealth of information derived from each inhibition curve and used an algorithm related to potency of the drugs, combined in a matrix data set used to generate a cluster tree. The cluster thus generated based just on drug susceptibility data closely resembles the phylogenies of the lineages derived from genetic data and provides a novel approach to correlate genetic data with phenotypes related to pathogenesis of Chagas disease. Furthermore we provide clues on the drugs mechanism of action.
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Affiliation(s)
- Carolina Aquilino
- Centro de Biología Molecular “Severo Ochoa”, Universidad Autónoma de Madrid, Campus de Cantoblanco, Madrid, Spain
| | - Maria Luisa Gonzalez Rubio
- Centro de Biología Molecular “Severo Ochoa”, Universidad Autónoma de Madrid, Campus de Cantoblanco, Madrid, Spain
| | - Elena Maria Seco
- Centro Nacional de Biotecnología, Campus de Cantoblanco, Madrid, Spain
| | - Leticia Escudero
- Centro Nacional de Biotecnología, Campus de Cantoblanco, Madrid, Spain
| | - Laura Corvo
- Centro de Biología Molecular “Severo Ochoa”, Universidad Autónoma de Madrid, Campus de Cantoblanco, Madrid, Spain
| | - Manuel Soto
- Centro de Biología Molecular “Severo Ochoa”, Universidad Autónoma de Madrid, Campus de Cantoblanco, Madrid, Spain
| | - Manuel Fresno
- Centro de Biología Molecular “Severo Ochoa”, Universidad Autónoma de Madrid, Campus de Cantoblanco, Madrid, Spain
| | | | - Pedro Bonay
- Centro de Biología Molecular “Severo Ochoa”, Universidad Autónoma de Madrid, Campus de Cantoblanco, Madrid, Spain
- * E-mail:
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Tang W, Huang Z, Wang Y, Bo H, Fu P. Effect of Plasma Exchange on Hepatocyte Oxidative Stress, Mitochondria Function, and Apoptosis in Patients With Acute Fatty Liver of Pregnancy. Artif Organs 2012; 36:E39-47. [DOI: 10.1111/j.1525-1594.2011.01417.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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S100A8/A9 induces autophagy and apoptosis via ROS-mediated cross-talk between mitochondria and lysosomes that involves BNIP3. Cell Res 2009; 20:314-31. [PMID: 19935772 DOI: 10.1038/cr.2009.129] [Citation(s) in RCA: 190] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The complex formed by two members of the S100 calcium-binding protein family, S100A8/A9, exerts apoptosis-inducing activity in various cells of different origins. Here, we present evidence that the underlying molecular mechanisms involve both programmed cell death I (PCD I, apoptosis) and PCD II (autophagy)-like death. Treatment of cells with S100A8/A9 caused the increase of Beclin-1 expression as well as Atg12-Atg5 formation. S100A8/A9-induced cell death was partially inhibited by the specific PI3-kinase class III inhibitor, 3-methyladenine (3-MA), and by the vacuole H(+)-ATPase inhibitor, bafilomycin-A1 (Baf-A1). S100A8/A9 provoked the translocation of BNIP3, a BH3 only pro-apoptotic Bcl2 family member, to mitochondria. Consistent with this finding, DeltaTM-BNIP3 overexpression partially inhibited S100A8/A9-induced cell death, decreased reactive oxygen species (ROS) generation, and partially protected against the decrease in mitochondrial transmembrane potential in S100A8/A9-treated cells. In addition, either DeltaTM-BNIP3 overexpression or N-acetyl-L-cysteine co-treatment decreased lysosomal activation in cells treated with S100A8/A9. Our data indicate that S100A8/A9-promoted cell death occurs through the cross-talk of mitochondria and lysosomes via ROS and the process involves BNIP3.
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Xiong J, Cheng G, Tang H, Zhen HN, Zhang X. Ardipusilloside I induces apoptosis in human glioblastoma cells through a caspase-8-independent FasL/Fas-signaling pathway. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2009; 27:264-270. [PMID: 21783950 DOI: 10.1016/j.etap.2008.11.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2008] [Revised: 10/31/2008] [Accepted: 11/09/2008] [Indexed: 05/31/2023]
Abstract
Ardipusilloside I, a triterpenoid saponin isolated from Ardisia pusilla A. DC, suppresses the growth of a variety of cancer cells, and has certain immunomodulative properties. Herein, we investigated its effect on glioblastoma cell line U87MG cells and primary cultured human glioblastoma cells, and examined the underlying mechanism of action. Ardipusilloside I substantially decreased the number of viable cells of both cell lines in a time- and concentration-dependent manner, with a similar IC(50) of 4.05μM. Microscopy revealed apoptotic characteristics, including chromatin condensation and cell nucleus fragmentation, demonstrating that ardipusilloside I-induced apoptosis. Ardipusilloside I exposure also gradually increased the sub-G1 fraction (the apoptotic cell population) and an S phase-arrest of both glioblastoma cells. Furthermore, ardipusilloside I increased the expression of Fas and its ligand (FasL), and enhanced the activation of caspase-8 and caspase-3. Additionally, we observed a significant decreased apoptosis after the trigger effection of FasL was abolished by the neutralization antibody anti-FasL antibody and an unchanged apoptosis level when the activation of caspase-8 was interrupted by specific inhibitor z-IETD-fmk, which suggested that a casepase-8 independent FasL/Fas-signaling-mediated death receptor pathway is involved. These data suggested that ardipusilloside I could be developed as a chemotherapeutic agent for the management of gliomas.
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Affiliation(s)
- Jian Xiong
- Department of Neurosurgery, Xijing Institute of Clinical Neuroscience, Fourth Military Medical University. No. 127 Changle Western Road, 710032 Xi'an, PR China
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Anti-Trypanosoma cruzi activity of Pterodon pubescens seed oil: geranylgeraniol as the major bioactive component. Parasitol Res 2008; 103:111-7. [DOI: 10.1007/s00436-008-0937-0] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2008] [Accepted: 02/19/2008] [Indexed: 11/27/2022]
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