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Xu T, Yang Y, Chen Z, Wang J, Wang X, Zheng Y, Wang C, Wang Y, Zhu Z, Ding X, Zhou J, Li G, Zhang H, Zhang W, Wu Y, Song X. TNFAIP2 confers cisplatin resistance in head and neck squamous cell carcinoma via KEAP1/NRF2 signaling. J Exp Clin Cancer Res 2023; 42:190. [PMID: 37525222 PMCID: PMC10391982 DOI: 10.1186/s13046-023-02775-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 07/22/2023] [Indexed: 08/02/2023] Open
Abstract
BACKGROUND Drug resistance limits the treatment effect of cisplatin-based chemotherapy in head and neck squamous cell carcinoma (HNSCC), and the underlying mechanism is not fully understood. The aim of this study was to explore the cause of cisplatin resistance in HNSCC. METHODS We performed survival and gene set variation analyses based on HNSCC cohorts and identified the critical role of tumor necrosis factor alpha-induced protein 2 (TNFAIP2) in cisplatin-based chemotherapy resistance. Half-maximal inhibitory concentration (IC50) examination, colony formation assays and flow cytometry assays were conducted to examine the role of TNFAIP2 in vitro, while xenograft models in nude mice and 4-nitroquinoline N-oxide (4NQO)-induced HNSCC models in C57BL/6 mice were adopted to verify the effect of TNFAIP2 in vivo. Gene set enrichment analysis (GSEA) and coimmunoprecipitation coupled with mass spectrometry (Co-IP/MS) were performed to determine the mechanism by which TNFAIP2 promotes cisplatin resistance. RESULTS High expression of TNFAIP2 is associated with a poor prognosis, cisplatin resistance, and low reactive oxygen species (ROS) levels in HNSCC. Specifically, it protects cancer cells from cisplatin-induced apoptosis by inhibiting ROS-mediated c-JUN N-terminal kinase (JNK) phosphorylation. Mechanistically, the DLG motif contained in TNFAIP2 competes with nuclear factor-erythroid 2-related factor 2 (NRF2) by directly binding to the Kelch domain of Kelch-like ECH-associated protein 1 (KEAP1), which prevents NRF2 from undergoing ubiquitin proteasome-mediated degradation. This results in the accumulation of NRF2 and confers cisplatin resistance. Positive correlations between TNFAIP2 protein levels and NRF2 as well as its downstream target genes were validated in HNSCC specimens. Moreover, the small interfering RNA (siRNA) targeting TNFAIP2 significantly enhanced the cisplatin treatment effect in a 4NQO-induced HNSCC mouse model. CONCLUSIONS Our results reveal the antioxidant and cisplatin resistance-regulating roles of the TNFAIP2/KEAP1/NRF2/JNK axis in HNSCC, suggesting that TNFAIP2 might be a potential target in improving the cisplatin treatment effect, particularly for patients with cisplatin resistance.
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Affiliation(s)
- Teng Xu
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing Medical University, Nanjing, China
| | - Yuemei Yang
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing Medical University, Nanjing, China
| | - Zhihong Chen
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing Medical University, Nanjing, China
| | - Jinsong Wang
- Department of Pathology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Xiaolei Wang
- Department of Pathology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Yang Zheng
- Department of Oral Maxillofacial & Head and Neck Oncology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center of Stomatology, Shanghai, China
| | - Chao Wang
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing Medical University, Nanjing, China
| | - Yachen Wang
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing Medical University, Nanjing, China
| | - Zaiou Zhu
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
| | - Xu Ding
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
| | - Junbo Zhou
- Department of Stomatology, Nanjing Integrated Traditional Chinese and Western Medicine Hospital, Nanjing, China
| | - Gang Li
- Department of Stomatology, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Hongchuang Zhang
- Department of Stomatology, Xuzhou No. 1 Peoples Hospital, Xuzhou, China
| | - Wei Zhang
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China.
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing Medical University, Nanjing, China.
| | - Yunong Wu
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China.
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China.
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing Medical University, Nanjing, China.
| | - Xiaomeng Song
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China.
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China.
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing Medical University, Nanjing, China.
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Wang N, Yang S, Tan T, Huang Y, Chen Y, Dong C, Chen J, Luo X. Tetrandrine suppresses the growth of human osteosarcoma cells by regulating multiple signaling pathways. Bioengineered 2021; 12:5870-5882. [PMID: 34477474 PMCID: PMC8806773 DOI: 10.1080/21655979.2021.1967034] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Although osteosarcoma (OS) is the most common malignant tumor among juvenile bone tumors, its treatment plan and clinical outcome have not improved significantly in recent decades. Tetrandrine (TET), a Chinese medicine that is usually used in the therapy of silicosis, hypertension and arthritis, has been confirmed by many studies to possess potent antitumour growth properties, but there are different limitations when describing specific mechanisms. Here, we found that TET can obviously prevent the proliferation, migration and invasion of both 143B and MG63 cells and promote their apoptosis in vitro. Our results for luciferase reporter and Western blotting assays show that TET may exert its antitumour activity by regulating multiplex signaling pathways, including the MAPK/Erk, PTEN/Akt, Juk and Wnt signaling pathways. Furthermore, the regulatory effect of TET on OS cells and related signaling pathways was verified again in vivo. Our findings suggest that the anticancer function of TET on human OS may be mediated by its targeting of multiple signaling pathways and that TET may be used as a single drug or in combination with other drugs during the treatment of OS.
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Affiliation(s)
- Nan Wang
- Department of Orthopedics, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, P.R. China
| | - Shengdong Yang
- Department of Orthopedics, The University-Town Hospital of Chongqing Medical University, Chongqing, P.R. China
| | - Tao Tan
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, P.R. China
| | - Yanran Huang
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, P.R. China
| | - Yangmei Chen
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, P.R. China
| | - Chaoqun Dong
- Department of General Surgery, Chongqing Traditional Chinese Medicine Hospital, Chongqing, P.R. China
| | - Jin Chen
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, P.R. China
| | - Xiaoji Luo
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, P.R. China
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Mohebali N, Pandurangan AK, Mustafa MR, Anandasadagopan SK, Alagumuthu T. Vernodalin induces apoptosis through the activation of ROS/JNK pathway in human colon cancer cells. J Biochem Mol Toxicol 2020; 34:e22587. [PMID: 32726518 DOI: 10.1002/jbt.22587] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 05/29/2020] [Accepted: 07/14/2020] [Indexed: 12/18/2022]
Abstract
Colorectal cancer is one of the most leading death-causing cancers in the world. Vernodalin, a cytotoxic sesquiterpene, has been reported to possess anticancer properties against human breast cancer cells. We aimed to examine the anticancer mechanism of vernodalin on human colon cancer cells. Vernodalin was used on human colon cancer cells, HT-29 and HCT116. The cytotoxicity of vernodalin on human colon cancer cells was determined through in vitro 3-(4,5-dimethylthiazol-2yl)-2,5-diphenyl-tetrazolium bromide assay. Small interfering RNA was used to analyze the cascade activation of mitogen-activated protein kinase (MAPK) pathway, c-Jun N-terminal kinase (JNK) in HT-29, and HCT116 cells against vernodalin treatment. The protein expressions of caspase 3, Bcl-2, and Bax were examined through Western blot analysis. Immunoblot analysis on the JNK, ERK, and p38 MAPK pathways showed increased activation due to vernodalin treatment. It was proven from the JNK and p38 inhibition test that both pathways are significantly activated by vernodalin to induce apoptosis. Our results, collectively, showed the apoptosis-induced anticancer mechanism of vernodalin on human colon cancer cells that was mediated through the activation of JNK pathway and apoptotic regulator proteins. These results suggest that vernodalin could be developed as a potent chemotherapeutic agent for human colorectal cancer treatment.
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Affiliation(s)
- Nooshin Mohebali
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Ashok Kumar Pandurangan
- School of Life Sciences, B.S. Abdur Rahman Crescent Institute of Science and Technology, Chennai, Tamil Nadu, India
| | - Mohd Rais Mustafa
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia.,Department of Pharmacology, Faculty of Medicine, Centre for Natural Products and Drug Discovery (CENAR), University of Malaya, Kuala Lumpur, Malaysia
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Ba MC, Ba Z, Cui SZ, Gong YF, Chen C, Lin KP, Wu YB, Tu YN. Thermo-chemotherapy inhibits the proliferation and metastasis of gastric cancer cells via suppression of EIF5A2 expression. Onco Targets Ther 2019; 12:6275-6284. [PMID: 31496731 PMCID: PMC6691964 DOI: 10.2147/ott.s215590] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 07/10/2019] [Indexed: 12/11/2022] Open
Abstract
Purpose Thermo-chemotherapy (TCT) is a new approach for the treatment of cancer that combines chemotherapy with thermotherapy. In the present study, we investigated the relationship between eukaryotic translation initiation factor 5A2 (EIF5A2) and TCT sensitivity in gastric cancer (GC) to further illuminate the molecular mechanism underlying the effect of TCT on GC. Methods A TCT cell model was constructed, and EIF5A2 was silenced or overexpressed by infection with a lentivirus expressing either EIF5A2 or EIF5A2 shRNA. Then, RT-qPCR, Western blotting, and immunohistochemistry assays were performed to evaluate the changes in the expression levels of EIF5A2, c-myc, vimentin, and E-cadherin. Cell proliferation and xenograft assays were conducted to evaluate the effect on cell proliferation. Finally, wound-healing and Transwell invasion assays were performed to evaluate the effects on migration and invasion. Results TCT reduced EIF5A2 expression at both the mRNA and protein levels. It also inhibited cell proliferation, migration, and invasion, downregulated the expression of c-myc and vimentin, and increased the expression of E-cadherin in both MKN28 and MKN45 cells. Silencing of EIF5A2 enhanced the above effects of TCT on MKN28 and MKN45 cells, while overexpression of EIF5A2 had the opposite effects. In addition, EIF5A2 overexpression weakened the inhibitory effect of TCT on tumor growth in vivo as well as the effects on c-myc, vimentin, and E-cadherin. Conclusion TCT inhibits GC cell proliferation and metastasis by suppressing EIF5A2 expression. Our results provide new insights into our understanding of the molecular mechanism underlying the effects of TCT in GC.
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Affiliation(s)
- Ming-Chen Ba
- Intracelom Hyperthermic Perfusion Therapy Center, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou 510095, People's Republic of China
| | - Zheng Ba
- Department of Intensive Care Unit, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, People's Republic of China
| | - Shu-Zhong Cui
- Intracelom Hyperthermic Perfusion Therapy Center, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou 510095, People's Republic of China
| | - Yuan-Feng Gong
- Intracelom Hyperthermic Perfusion Therapy Center, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou 510095, People's Republic of China
| | - Cheng Chen
- Intracelom Hyperthermic Perfusion Therapy Center, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou 510095, People's Republic of China
| | - Kun-Peng Lin
- Intracelom Hyperthermic Perfusion Therapy Center, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou 510095, People's Republic of China
| | - Yin-Bing Wu
- Intracelom Hyperthermic Perfusion Therapy Center, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou 510095, People's Republic of China
| | - Yi-Nuo Tu
- Intracelom Hyperthermic Perfusion Therapy Center, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou 510095, People's Republic of China
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Wu Y, Honegger A, Batyuk A, Mittl PRE, Plückthun A. Structural Basis for the Selective Inhibition of c-Jun N-Terminal Kinase 1 Determined by Rigid DARPin-DARPin Fusions. J Mol Biol 2017; 430:2128-2138. [PMID: 29126898 DOI: 10.1016/j.jmb.2017.10.032] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2017] [Revised: 10/30/2017] [Accepted: 10/31/2017] [Indexed: 12/31/2022]
Abstract
To untangle the complex signaling of the c-Jun N-terminal kinase (JNK) isoforms, we need tools that can selectively detect and inhibit individual isoforms. Because of the high similarity between JNK1, JNK2 and JNK3, it is very difficult to generate small-molecule inhibitors with this discriminatory power. Thus, we have recently selected protein binders from the designed ankyrin repeat protein (DARPin) library which were indeed isoform-specific inhibitors of JNK1 with low nanomolar potency. Here we provide the structural basis for their isotype discrimination and their inhibitory action. All our previous attempts to generate crystal structures of complexes had failed. We have now made use of a technology we recently developed which consists of rigid fusion of an additional special DARPin, which acts as a crystallization enhancer. This can be rigidly fused with different geometries, thereby generating a range of alternative crystal packings. The structures reveal the molecular basis for isoform specificity of the DARPins and their ability to prevent JNK activation and may thus form the basis of further investigation of the JNK family as well as novel approaches to drug design.
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Affiliation(s)
- Yufan Wu
- Department of Biochemistry, University of Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
| | - Annemarie Honegger
- Department of Biochemistry, University of Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
| | - Alexander Batyuk
- Department of Biochemistry, University of Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
| | - Peer R E Mittl
- Department of Biochemistry, University of Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
| | - Andreas Plückthun
- Department of Biochemistry, University of Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland.
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Wu T, Zhan Q, Zhang T, Ang S, Ying J, He K, Zhang S, Xue Y, Tang M. The protective effects of resveratrol, H 2S and thermotherapy on the cell apoptosis induced by CdTe quantum dots. Toxicol In Vitro 2017; 41:106-113. [PMID: 28219723 DOI: 10.1016/j.tiv.2017.02.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2016] [Revised: 12/19/2016] [Accepted: 02/17/2017] [Indexed: 02/07/2023]
Abstract
Quantum dots (QDs) could be used in the field of biology and medicine as excellent nano-scale fluorescent probes due to their unique optical properties, but the adverse effects of QDs are always the obstruction for its usage in living organisms. In this study, we observed that CdTe QDs exposure decreased the cell viability while increased the apoptosis rates in the L929 cells. Apart from QD-induced oxidative stress indicated by excessive ROS generation, three signal transductions, including Akt, p38 and JNK, played important roles on the regulation of cell apoptosis by CdTe QDs exposure as well. In order to reduce the toxicity of CdTe QDs, we explored the protective effects of three treatments, i.e. resveratrol, H2S and thermotherapy at 43°C, against the cell apoptosis elicited by CdTe QDs. The results showed that resveratrol, H2S and thermotherapy at 43°C were capable of attenuating cell apoptosis and intercellular ROS production through inhibiting signal pathways of Akt, p38 and JNK, respectively. As there is only limited number of exogenous treatments reported to diminish the toxicity of QDs, our findings will provide a novel insight for researchers who try to reduce or even eliminate the adverse health effects of QDs.
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Affiliation(s)
- Tianshu Wu
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, & Collaborative Innovation Center of Suzhou Nano Science and Technology, Southeast University, Nanjing 210009, China; Jiangsu key Laboratory for Biomaterials and Devices, Southeast University, Nanjing 210009, China
| | - Qingling Zhan
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, & Collaborative Innovation Center of Suzhou Nano Science and Technology, Southeast University, Nanjing 210009, China; Jiangsu key Laboratory for Biomaterials and Devices, Southeast University, Nanjing 210009, China
| | - Ting Zhang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, & Collaborative Innovation Center of Suzhou Nano Science and Technology, Southeast University, Nanjing 210009, China; Jiangsu key Laboratory for Biomaterials and Devices, Southeast University, Nanjing 210009, China
| | - Shengjun Ang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, & Collaborative Innovation Center of Suzhou Nano Science and Technology, Southeast University, Nanjing 210009, China; Jiangsu key Laboratory for Biomaterials and Devices, Southeast University, Nanjing 210009, China
| | - Jiali Ying
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, & Collaborative Innovation Center of Suzhou Nano Science and Technology, Southeast University, Nanjing 210009, China; Jiangsu key Laboratory for Biomaterials and Devices, Southeast University, Nanjing 210009, China
| | - Keyu He
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, & Collaborative Innovation Center of Suzhou Nano Science and Technology, Southeast University, Nanjing 210009, China; Jiangsu key Laboratory for Biomaterials and Devices, Southeast University, Nanjing 210009, China
| | - Shihan Zhang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, & Collaborative Innovation Center of Suzhou Nano Science and Technology, Southeast University, Nanjing 210009, China; Jiangsu key Laboratory for Biomaterials and Devices, Southeast University, Nanjing 210009, China
| | - Yuying Xue
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, & Collaborative Innovation Center of Suzhou Nano Science and Technology, Southeast University, Nanjing 210009, China; Jiangsu key Laboratory for Biomaterials and Devices, Southeast University, Nanjing 210009, China
| | - Meng Tang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, & Collaborative Innovation Center of Suzhou Nano Science and Technology, Southeast University, Nanjing 210009, China; Jiangsu key Laboratory for Biomaterials and Devices, Southeast University, Nanjing 210009, China.
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Cerezo D, Ruiz-Alcaraz AJ, Lencina-Guardiola M, Cánovas M, García-Peñarrubia P, Martínez-López I, Martín-Orozco E. Attenuated JNK signaling in multidrug-resistant leukemic cells. Dual role of MAPK in cell survival. Cell Signal 2016; 30:162-170. [PMID: 27940051 DOI: 10.1016/j.cellsig.2016.12.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 11/28/2016] [Accepted: 12/05/2016] [Indexed: 02/07/2023]
Abstract
Having found previously that leukemic cells with multidrug resistant (MDR) phenotype, but not their sensitive counterparts, exhibit collateral sensitivity to cold stress in a P-gp-dependent manner, our aim was to study the signaling pathways involved in this phenomenon in sensitive (L1210) and resistant cells (L1210R and CBMC-6). It was observed that the acquisition of MDR phenotype by leukemic cells or their transfection with the extrussion pump, P-gp, modifies the activation profile and regulation of Mitogen-Activated Protein Kinases (MAPK) in cells exposed to low temperatures. More specifically, cold stress provoked the activation of c-Jun N-terminal kinase (JNK) in sensitive cells, while attenuated JNK signaling was observed in MDR cells. This effect was also observed, although with less intensity, in P-gp-transfected cells. Using pharmacological inhibitors to determine the role of MAPK in leukemic cell survival in physiological conditions or under cold stress, a dual temperature-dependent role was observed for JNK in MDR cell survival. At 37°C JNK is necessary for the survival of parental, resistant and P-gp-transfected cells; however, the use of inhibitors of either extracellular signal-regulated protein kinase (ERK) or JNK significantly counteracts cold-induced death of resistant and P-gp-transfected cells, supporting a role for ERK and JNK in cold-stress induced cell death. Finally, a connectivity model concerning MAPK is proposed, summarizing how cold stress and MDR-1 might trigger apoptosis in resistant cell lines. These findings on MDR cells may assist in the design of specific therapeutic strategies to complement current chemotherapy.
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Affiliation(s)
- David Cerezo
- Department of Biochemistry and Molecular Biology B and Immunology, School of Medicine, Murcia Biohealth Research Institute-University of Murcia (IMIB-UMU), Regional Campus of International Excellence "Campus Mare Nostrum", 30100 Murcia, Spain
| | - Antonio J Ruiz-Alcaraz
- Department of Biochemistry and Molecular Biology B and Immunology, School of Medicine, Murcia Biohealth Research Institute-University of Murcia (IMIB-UMU), Regional Campus of International Excellence "Campus Mare Nostrum", 30100 Murcia, Spain
| | - Miriam Lencina-Guardiola
- Department of Biochemistry and Molecular Biology B and Immunology, School of Medicine, Murcia Biohealth Research Institute-University of Murcia (IMIB-UMU), Regional Campus of International Excellence "Campus Mare Nostrum", 30100 Murcia, Spain
| | - Manuel Cánovas
- Department of Biochemistry and Molecular Biology B and Immunology, School of Medicine, Murcia Biohealth Research Institute-University of Murcia (IMIB-UMU), Regional Campus of International Excellence "Campus Mare Nostrum", 30100 Murcia, Spain
| | - Pilar García-Peñarrubia
- Department of Biochemistry and Molecular Biology B and Immunology, School of Medicine, Murcia Biohealth Research Institute-University of Murcia (IMIB-UMU), Regional Campus of International Excellence "Campus Mare Nostrum", 30100 Murcia, Spain
| | - Inmaculada Martínez-López
- Department of Biochemistry and Molecular Biology B and Immunology, School of Medicine, Murcia Biohealth Research Institute-University of Murcia (IMIB-UMU), Regional Campus of International Excellence "Campus Mare Nostrum", 30100 Murcia, Spain
| | - Elena Martín-Orozco
- Department of Biochemistry and Molecular Biology B and Immunology, School of Medicine, Murcia Biohealth Research Institute-University of Murcia (IMIB-UMU), Regional Campus of International Excellence "Campus Mare Nostrum", 30100 Murcia, Spain.
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Choi Y, Park J, Choi Y, Ko YS, Yu DA, Kim Y, Pyo JS, Jang BG, Kim MA, Kim WH, Lee BL. c-Jun N-terminal kinase activation has a prognostic implication and is negatively associated with FOXO1 activation in gastric cancer. BMC Gastroenterol 2016; 16:59. [PMID: 27268017 PMCID: PMC4895928 DOI: 10.1186/s12876-016-0473-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Accepted: 05/27/2016] [Indexed: 12/27/2022] Open
Abstract
Background Since the biological function of c-Jun N-terminal kinase (JNK) in gastric cancer remains unclear, we investigated the clinical significance of JNK activation and its association with FOXO1 activation. Methods Immunohistochemical tissue array analysis of 483 human gastric cancer specimens was performed, and the results of the immunostaining were quantified. The correlation between JNK activation (nuclear staining for pJNK) and clinicopathological features, the proliferation index, prognosis or FOXO1 inactivation (cytoplasmic staining for pFOXO1) was analyzed. The SNU-638 gastric cancer cell line was used for in vitro analysis. Results Nuclear staining of pJNK was found in 38 % of the gastric carcinomas and was higher in the early stages of pTNM (P < 0.001). pJNK staining negatively correlated with lymphatic invasion (P = 0.034) and positively correlated with intestinal type by Lauren’s classification (P = 0.037), Ki-67-labeling index (P < 0.001), cyclin D1 (P = 0.045), cyclin E (P < 0.001) and pFOXO1 (P < 0.001). JNK activation correlated with a longer patients survival (P =0.008) and patients with a JNK-active and FOXO1-inactive tumor had a higher survival rate than the remainder of the population (P = 0.004). In vitro analysis showed that JNK inhibition by SP600125 in SNU-638 cells decreased cyclin D1 protein expression and increased FOXO1 activation. Further, JNK inhibition markedly suppressed colony formation, which was partially restored by FOXO1 shRNA expression. Conclusions Our results indicate that JNK activation may serve as a valuable prognostic factor in gastric cancer, and that it is implicated in gastric tumorigenesis, at least in part, through FOXO1 inhibition.
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Affiliation(s)
- Youngsun Choi
- Department of Tumor Biology, Cancer Research Institute, Seoul National University College of Medicine, Seoul, 110-799, South Korea
| | - Jinju Park
- Department of Tumor Biology, Cancer Research Institute, Seoul National University College of Medicine, Seoul, 110-799, South Korea
| | - Yiseul Choi
- Department of Tumor Biology, Cancer Research Institute, Seoul National University College of Medicine, Seoul, 110-799, South Korea
| | - Young San Ko
- Departments of Anatomy, Seoul National University College of Medicine, Seoul, 110-799, South Korea
| | - Da-Ae Yu
- Departments of Anatomy, Seoul National University College of Medicine, Seoul, 110-799, South Korea
| | - Younghoon Kim
- Department of Pathology, Seoul National University College of Medicine, Seoul, 110-799, South Korea
| | - Jung-Soo Pyo
- Department of Pathology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, 110-746, South Korea
| | - Bo Gun Jang
- Department of Pathology, Jeju National University Hospital, Jeju, 690-767, South Korea
| | - Min A Kim
- Department of Pathology, Seoul National University College of Medicine, Seoul, 110-799, South Korea
| | - Woo Ho Kim
- Department of Pathology, Seoul National University College of Medicine, Seoul, 110-799, South Korea
| | - Byung Lan Lee
- Department of Tumor Biology, Cancer Research Institute, Seoul National University College of Medicine, Seoul, 110-799, South Korea. .,Departments of Anatomy, Seoul National University College of Medicine, Seoul, 110-799, South Korea. .,Ischemic/Hypoxic Disease Institute Medical Research Center, Seoul National University College of Medicine, Seoul, 110-799, South Korea.
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Liu T, Ye YW, Zhu AL, Yang Z, Fu Y, Wei CQ, Liu Q, Zhao CL, Wang GJ, Zhang XF. Hyperthermia combined with 5-fluorouracil promoted apoptosis and enhanced thermotolerance in human gastric cancer cell line SGC-7901. Onco Targets Ther 2015; 8:1265-70. [PMID: 26064061 PMCID: PMC4455869 DOI: 10.2147/ott.s78514] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
This study was designed to investigate the proliferation inhibition and apoptosis-promoting effect under hyperthermia and chemotherapy treatment, at cellular level. Human gastric cancer cell line SGC-7901 was cultivated with 5-fluorouracil at different temperatures. Cell proliferation and apoptosis were determined, and expression of Bcl-2 and HSP70 was measured at different treatments. Cell survival rates and inhibition rates in chemotherapy group, thermotherapy group, and thermo-chemotherapy group were drastically lower than the control group (P<0.05). For tumor cells in the thermo-chemotherapy group, survival rates and inhibition rates at three different temperatures were all significantly lower than those in chemotherapy group and thermotherapy group (P<0.05). 5-Fluorouracil induced apoptosis of SGC-7901 cells with a strong temperature dependence, which increased gradually with increase in temperature. At 37°C and 43°C there were significant differences between the thermotherapy group and chemotherapy group and between the thermo-chemotherapy group and thermotherapy group (P<0.01). The expression of Bcl-2 was downregulated and HSP70 was upregulated, with increase in temperature in all groups. Cell apoptosis was not significant at 46°C (P>0.05), which was probably due to thermotolerance caused by HSP70 accumulation. These results suggested that hyperthermia combined with 5-fluorouracil had a synergistic effect in promoting apoptosis and enhancing thermotolerance in gastric cancer cell line SGC-7901.
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Affiliation(s)
- Tao Liu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Yan-Wei Ye
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - A-Li Zhu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Zhen Yang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Yang Fu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Chong-Qing Wei
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Qi Liu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Chun-Lin Zhao
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Guo-Jun Wang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
| | - Xie-Fu Zhang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, People's Republic of China
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10
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Liu B, Yu HH, Ye HL, Luo ZY, Xiao F. Effects of stromal interacting molecule 1 gene silencing by short hairpin RNA on the biological behavior of human gastric cancer cells. Mol Med Rep 2015; 12:3047-54. [PMID: 25976311 DOI: 10.3892/mmr.2015.3778] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Accepted: 03/16/2015] [Indexed: 11/05/2022] Open
Abstract
Gastric cancer is one of the most common types of cancer worldwide. It has been reported that stromal interacting molecule 1 (STIM1) is associated with tumor progression and metastatic spread, including in cervical cancer, breast carcinoma and prostatic cancer. The present study investigated whether STIM1, an endoplasmic reticulum Ca(2+) sensor and activator of store-operated channel entry, contributed to SGC7901 cell progression. The pGPU6-shSTIM1 recombinant plasmid was constructed, and the effects of downregulation of STIM1 on the proliferation, apoptosis, migration and invasion of SGC7901 cells were examined. Western blot analysis revealed that transfection with the pGPU6-shSTIM1 plasmid successfully inhibited the expression of STIM1. STIM1 silencing in the gastric cancer cells significantly inhibited cell proliferation by arresting the cell cycle at the G0/G1 phase, and increasing the apoptotic rate following treatment of the SGC7901 cells with pGPU6-shSTIM1, indicated using an MTT cell viability assay and flow cytometery, respectively. As expected, STIM1 knock down also reduced the migration and invasion of the SGC7901 cells, demonstrated using a Transwell assay. The possible molecular mechanism involved the regulation of several signaling pathways involved in the biological behavior of cell survival, apoptosis, migration and metastasis. Together, these finding suggested that the expression of STIM1 is crucial for the proliferation and invasion of SGC7901 cells, providing a foundation for the development of novel type‑specific diagnostic strategies and treatments for gastric cancer.
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Affiliation(s)
- Bin Liu
- Department of Pathology, Affiliated Hospital of Jinggangshan University, Ji'an, Jiangxi 343000, P.R. China
| | - Hai-Hong Yu
- Ji'an Key Laboratory of Pharmaceutical Biotechnology, School of Medicine, Jinggangshan University, Ji'an, Jiangxi 343000, P.R. China
| | - Hong-Li Ye
- Department of Pathology, School of Medicine, Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Zhi-Ying Luo
- Department of Pathology, School of Medicine, Jinggangshan University, Ji'an, Jiangxi 343000, P.R. China
| | - Feng Xiao
- Department of Pathology, School of Medicine, Jinggangshan University, Ji'an, Jiangxi 343000, P.R. China
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11
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LI PENG, LIU TIE, KAMP DAVIDW, LIN ZIYING, WANG YAHONG, LI DONGHONG, YANG LAWEI, HE HUIJUAN, LIU GANG. The c-Jun N-terminal kinase signaling pathway mediates chrysotile asbestos-induced alveolar epithelial cell apoptosis. Mol Med Rep 2015; 11:3626-34. [PMID: 25530474 PMCID: PMC4735687 DOI: 10.3892/mmr.2014.3119] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Accepted: 07/22/2014] [Indexed: 02/07/2023] Open
Abstract
Exposure to chrysotile asbestos exposure is associated with an increased risk of mortality in combination with pulmonary diseases including lung cancer, mesothelioma and asbestosis. Multiple mechanisms by which chrysotile asbestos fibers induce pulmonary disease have been identified, however the role of apoptosis in human lung alveolar epithelial cells (AEC) has not yet been fully explored. Accumulating evidence implicates AEC apoptosis as a crucial event in the development of both idiopathic pulmonary fibrosis and asbestosis. The aim of the present study was to determine whether chrysotile asbestos induces mitochondria‑regulated (intrinsic) AEC apoptosis and, if so, whether this induction occurs via the activation of mitogen‑activated protein kinases (MAPK). Human A549 bronchoalveolar carcinoma‑derived cells with alveolar epithelial type II‑like features were used. The present study showed that chrysotile asbestos induced a dose‑ and time‑dependent decrease in A549 cell viability, which was accompanied by the activation of the MAPK c‑Jun N‑terminal kinases (JNK), but not the MAPKs extracellular signal‑regulated kinase 1/2 and p38. Chrysotile asbestos was also shown to induce intrinsic AEC apoptosis, as evidenced by the upregulation of the pro‑apoptotic genes Bax and Bak, alongside the activation of caspase‑9, poly (ADP‑ribose) polymerase (PARP), and the release of cytochrome c. Furthermore, the specific JNK inhibitor SP600125 blocked chrysotile asbestos‑induced JNK activation and subsequent apoptosis, as assessed by both caspase‑9 cleavage and PARP activation. The results of the present study demonstrated that chrysotile asbestos induces intrinsic AEC apoptosis by a JNK‑dependent mechanism, and suggests a potential novel target for the modulation of chrysotile asbestos‑associated lung diseases.
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Affiliation(s)
- PENG LI
- Clinical Research Center, Guangdong Medical College, Zhanjiang, Guangdong 524001, P.R. China
| | - TIE LIU
- Department of Hematology, The First Affiliated Hospital, Medical School of Xi’an Jiaotong University, Xi’an, Shaanxi 710061, P.R. China
| | - DAVID W. KAMP
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Jesse Brown Veterans Affairs Medical Center and Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Correspondence to: Professor Gang Liu, Clinical Research Center, Guangdong Medical College, 57 Renming Ave, Zhanjiang, Guangdong 524001, P.R. China, E-mail: . Dr David W. Kamp, Department of Medicine, Division of Pulmonary and Critical Care Medicine, Jesse Brown Veterans Affairs Medical Center and Northwestern University Feinberg School of Medicine, 240 E. Huron St., Chicago, IL 60611-3010, USA, E-mail:
| | - ZIYING LIN
- Clinical Research Center, Guangdong Medical College, Zhanjiang, Guangdong 524001, P.R. China
| | - YAHONG WANG
- Clinical Research Center, Guangdong Medical College, Zhanjiang, Guangdong 524001, P.R. China
| | - DONGHONG LI
- Clinical Research Center, Guangdong Medical College, Zhanjiang, Guangdong 524001, P.R. China
| | - LAWEI YANG
- Clinical Research Center, Guangdong Medical College, Zhanjiang, Guangdong 524001, P.R. China
| | - HUIJUAN HE
- Clinical Research Center, Guangdong Medical College, Zhanjiang, Guangdong 524001, P.R. China
| | - GANG LIU
- Clinical Research Center, Guangdong Medical College, Zhanjiang, Guangdong 524001, P.R. China
- Correspondence to: Professor Gang Liu, Clinical Research Center, Guangdong Medical College, 57 Renming Ave, Zhanjiang, Guangdong 524001, P.R. China, E-mail: . Dr David W. Kamp, Department of Medicine, Division of Pulmonary and Critical Care Medicine, Jesse Brown Veterans Affairs Medical Center and Northwestern University Feinberg School of Medicine, 240 E. Huron St., Chicago, IL 60611-3010, USA, E-mail:
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12
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Zhang B, Gu Y. Bortezomib inhibits gastric carcinoma HGC-27 cells through the phospho-Jun N-terminal kinase (p-JNK) pathway in vitro. Gene 2015; 559:164-71. [PMID: 25602436 DOI: 10.1016/j.gene.2015.01.035] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Revised: 01/03/2015] [Accepted: 01/15/2015] [Indexed: 02/07/2023]
Abstract
The study is designed to explore the anticancer mechanism of Bortezomib. The effects of Bortezomib on the proliferation of human gastric cancer cells HGC-27 and expression levels of the phospho-Jun N-terminal kinase (p-JNK) pathway-related proteins in vitro were investigated. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay revealed that the Bortezomib significantly decreased the viability of HGC-27 cells and induced apoptosis. Western blot showed that the Bortezomib strongly increased the levels of p-JNK, caspase-3, PARP, and bax proteins while it increased the level of bcl-2. However, SP600125 can significantly decrease antitumour effects of Bortezomib in HGC-27 cells. It can be concluded that Bortezomib has significant inhibitory effects on the growth of HGC-27 cells. The effect may be achieved partly via upregulating JNK pathway and its down-stream apoptosis-related proteins. Therefore, Bortezomib may be beneficial in gastric carcinoma treatment.
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Affiliation(s)
- BeiLi Zhang
- Department of General Surgery, Ninth People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200011, China
| | - Yan Gu
- Department of General Surgery, Ninth People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200011, China.
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13
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Messoussi A, Feneyrolles C, Bros A, Deroide A, Daydé-Cazals B, Chevé G, Van Hijfte N, Fauvel B, Bougrin K, Yasri A. Recent progress in the design, study, and development of c-Jun N-terminal kinase inhibitors as anticancer agents. ACTA ACUST UNITED AC 2014; 21:1433-43. [PMID: 25442375 DOI: 10.1016/j.chembiol.2014.09.007] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Revised: 08/19/2014] [Accepted: 09/05/2014] [Indexed: 12/11/2022]
Abstract
The c-Jun N-terminal kinase (JNK) family, with its three members JNK1, JNK2, and JNK3, is a subfamily of mitogen-activated protein kinases. Involved in many aspects of cellular processes, JNK has been also associated with pathological states such as neurodegenerative diseases, inflammation, and cancers. In oncology, each isoform plays a distinct role depending on the context of the targeted tissue/organ, the tumor stage, and, most likely, the signaling pathway activated upstream. Consequently, the current challenge in finding new successful anti-JNK therapies is to design isoform-selective inhibitors of the JNKs. In this review, a particular focus is given to the JNK inhibitors that have been developed thus far when examining 3D structures of various JNK-inhibitor complexes. Using current data regarding structure-activity relationships and medicinal chemistry approaches, our objective is to provide a better understanding of the design and development of selective JNK inhibitors in the present and future.
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Affiliation(s)
- Abdellah Messoussi
- OriBase Pharma, Cap Gamma, Parc Euromédecine, 34090 Montpellier, France; Laboratoire de Chimie des Plantes et de Synthèse Organique et Bioorganique, URAC23, Université Mohammed V-Agdal, Faculté des Sciences, B.P. 1014 Rabat, Morocco
| | | | - Aurélie Bros
- OriBase Pharma, Cap Gamma, Parc Euromédecine, 34090 Montpellier, France
| | - Arthur Deroide
- OriBase Pharma, Cap Gamma, Parc Euromédecine, 34090 Montpellier, France
| | | | - Gwénaël Chevé
- OriBase Pharma, Cap Gamma, Parc Euromédecine, 34090 Montpellier, France
| | | | - Bénédicte Fauvel
- OriBase Pharma, Cap Gamma, Parc Euromédecine, 34090 Montpellier, France
| | - Khalid Bougrin
- Laboratoire de Chimie des Plantes et de Synthèse Organique et Bioorganique, URAC23, Université Mohammed V-Agdal, Faculté des Sciences, B.P. 1014 Rabat, Morocco
| | - Aziz Yasri
- OriBase Pharma, Cap Gamma, Parc Euromédecine, 34090 Montpellier, France.
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14
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Hou CH, Lin FL, Hou SM, Liu JF. Hyperthermia induces apoptosis through endoplasmic reticulum and reactive oxygen species in human osteosarcoma cells. Int J Mol Sci 2014; 15:17380-95. [PMID: 25268613 PMCID: PMC4227168 DOI: 10.3390/ijms151017380] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2014] [Revised: 08/12/2014] [Accepted: 09/16/2014] [Indexed: 02/06/2023] Open
Abstract
Osteosarcoma (OS) is a relatively rare form of cancer, but OS is the most commonly diagnosed bone cancer in children and adolescents. Chemotherapy has side effects and induces drug resistance in OS. Since an effective adjuvant therapy was insufficient for treating OS, researching novel and adequate remedies is critical. Hyperthermia can induce cell death in various cancer cells, and thus, in this study, we investigated the anticancer method of hyperthermia in human OS (U-2 OS) cells. Treatment at 43 °C for 60 min induced apoptosis in human OS cell lines, but not in primary bone cells. Furthermore, hyperthermia was associated with increases of intracellular reactive oxygen species (ROS) and caspase-3 activation in U-2 OS cells. Mitochondrial dysfunction was followed by the release of cytochrome c from the mitochondria, and was accompanied by decreased anti-apoptotic Bcl-2 and Bcl-xL, and increased pro-apoptotic proteins Bak and Bax. Hyperthermia triggered endoplasmic reticulum (ER) stress, which was characterized by changes in cytosolic calcium levels, as well as increased calpain expression and activity. In addition, cells treated with calcium chelator (BAPTA-AM) blocked hyperthermia-induced cell apoptosis in U-2 OS cells. In conclusion, hyperthermia induced cell apoptosis substantially via the ROS, ER stress, mitochondria, and caspase pathways. Thus, hyperthermia may be a novel anticancer method for treating OS.
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Affiliation(s)
- Chun-Han Hou
- Department of Orthopedic Surgery, National Taiwan University Hospital, Taipei 100, Taiwan.
| | - Feng-Ling Lin
- Department of Dermatology, Sijhih Cathay General Hospital, Taipei 221, Taiwan.
| | - Sheng-Mon Hou
- Department of Orthopedic Surgery, Shin-Kong Wu Ho-Su Memorial Hospital, Taipei 111, Taiwan.
| | - Ju-Fang Liu
- Central Laboratory, Shin-Kong Wu Ho-Su Memorial Hospital, Taipei 111, Taiwan.
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15
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JNK confers 5-fluorouracil resistance in p53-deficient and mutant p53-expressing colon cancer cells by inducing survival autophagy. Sci Rep 2014; 4:4694. [PMID: 24733045 PMCID: PMC3986705 DOI: 10.1038/srep04694] [Citation(s) in RCA: 84] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Accepted: 03/31/2014] [Indexed: 01/15/2023] Open
Abstract
Deficiency or mutation in the p53 tumor suppressor gene commonly occurs in human cancer and can contribute to disease progression and chemotherapy resistance. Currently, although the pro-survival or pro-death effect of autophagy remains a controversial issue, increasing data seem to support the idea that autophagy facilitates cancer cell resistance to chemotherapy treatment. Here we report that 5-FU treatment causes aberrant autophagosome accumulation in HCT116 p53−/− and HT-29 cancer cells. Specific inhibition of autophagy by 3-MA, CQ or small interfering RNA treatment targeting Atg5 or Beclin 1 can potentiate the re-sensitization of these resistant cancer cells to 5-FU. In further analysis, we show that JNK activation and phosphorylation of Bcl-2 are key determinants in 5-FU-induced autophagy. Inhibition of JNK by the compound SP600125 or JNK siRNA suppressed autophagy and phosphorylation of c-Jun and Bcl-2 but increased 5-FU-induced apoptosis in both HCT116 p53−/− and HT29 cells. Taken together, our results suggest that JNK activation confers 5-FU resistance in HCT116 p53−/− and HT29 cells by promoting autophagy as a pro-survival effect, likely via inducing Bcl-2 phosphorylation. These results provide a promising strategy to improve the efficacy of 5-FU-based chemotherapy for colorectal cancer patients harboring a p53 gene mutation.
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16
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Sui X, Kong N, Ye L, Han W, Zhou J, Zhang Q, He C, Pan H. p38 and JNK MAPK pathways control the balance of apoptosis and autophagy in response to chemotherapeutic agents. Cancer Lett 2013; 344:174-9. [PMID: 24333738 DOI: 10.1016/j.canlet.2013.11.019] [Citation(s) in RCA: 720] [Impact Index Per Article: 65.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2013] [Revised: 11/09/2013] [Accepted: 11/19/2013] [Indexed: 01/01/2023]
Abstract
The Mitogen Activated Protein Kinase (MAPK) signaling plays a critical role in the outcome and the sensitivity to anticancer therapies. Activated MAPK can transmit extracellular signals to regulate cell growth, proliferation, differentiation, migration, apoptosis and so on. Apoptosis as well as macroautophagy (hereafter referred to as autophagy) can be induced by extracellular stimuli such the treatment of chemotherapeutic agents, resulting in different cell response to these drugs. However, the molecular mechanisms mediating these two cellular processes remain largely unknown. Recently, several studies provide new insights into p38 and JNK MAPK pathways function in the control of the balance of autophagy and apoptosis in response to genotoxic stress. Our increased understanding of the role of p38 and JNK MAPK pathways in regulating the balance of autophagy and apoptosis will hopefully provide prospective strategies for cancer therapy.
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Affiliation(s)
- Xinbing Sui
- Department of Medical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, China; Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Hangzhou, China
| | - Na Kong
- Department of Medical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, China; Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Hangzhou, China
| | - Li Ye
- Department of General Medicine, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, China
| | - Weidong Han
- Department of Medical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, China; Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Hangzhou, China
| | - Jichun Zhou
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, China
| | - Qin Zhang
- Department of Gastrointestinal Surgery, Zhejiang Provincial People's Hospital, Hangzhou, China.
| | - Chao He
- Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Hangzhou, China; Department of Colorectal Surgery, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, China.
| | - Hongming Pan
- Department of Medical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, China; Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, Hangzhou, China.
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17
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Focusing on the structure and the function of Pin1: New insights into the opposite effects of fever on cancers and Alzheimer’s disease. Med Hypotheses 2013; 81:282-4. [DOI: 10.1016/j.mehy.2013.04.029] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2013] [Revised: 04/11/2013] [Accepted: 04/16/2013] [Indexed: 12/22/2022]
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