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Insight into autophagy in platinum resistance of cancer. Int J Clin Oncol 2023; 28:354-362. [PMID: 36705869 DOI: 10.1007/s10147-023-02301-5] [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: 08/28/2022] [Accepted: 01/16/2023] [Indexed: 01/28/2023]
Abstract
Platinum drugs, as a class of widely used chemotherapy agents, frequently appear in the treatment of cancer at different phrases. However, platinum resistance is the major bottleneck of platinum drugs for exerting anti-tumor effect. At present, the mechanism of platinum resistance has been thoroughly explored in terms of drug delivery methods, DNA damage repair function, etc., but it has not yet been translated into an effective weapon for reversing platinum resistance. Recently, autophagy has been proved to be closely related to platinum resistance, and the involved molecular mechanism may provide a new perspective on platinum resistance. The aim of this review is to sort out the studies related to autophagy and platinum resistance, and to focus on summarizing the relevant molecular mechanisms, so as to provide clues for future studies related to autophagy and platinum resistance.
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Sai S, Yamada T, Ito K, Kanematsu N, Suzuki M, Hayashi M, Koto M. Carbon-ion beam irradiation in combination with cisplatin effectively suppresses xenografted malignant pleural mesothelioma. Am J Cancer Res 2022; 12:5657-5667. [PMID: 36628287 PMCID: PMC9827089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 11/28/2022] [Indexed: 01/12/2023] Open
Abstract
Malignant pleural mesothelioma (MPM) is a rare aggressive cancer. This study investigated the growth-inhibitory effects of the combination of carbon ion beam irradiation (IR) and cisplatin (CDDP) on MPM xenografts. Carbon-ion beam IR at 15 Gy effectively inhibited tumor growth and decreased the tumor volume more than 90% after 9 weeks. However, tumor regrowth was observed after 17 weeks. The combination of carbon-ion beam IR (15 Gy) and CDDP significantly suppressed tumor growth after 9 weeks, with tumor regression being observed for more than 18 weeks. In contrast, X-ray IR (30 Gy) alone or in combination with CDDP effectively suppressed tumor growth and decreased the tumor volume after 11 weeks, but tumor growth was observed after 15 weeks. Carbon-ion beam IR at 25 Gy resulted in complete tumor regression without tumor regrowth in the 20-week follow-up period. Histopathological analysis revealed that combination of carbon-ion beam IR and CDDP exerted effective cytotoxic effects on MPM xenograft tumor cells and significantly promoted tumor cell necrosis, cavitation, and fibrosis when compared with individual treatment with carbon-ion beam, X-ray IR, or CDDP. Immunohistochemical analysis revealed that the expression levels of tumor cell migration and invasion-related proteins such as CXCL12, MMP2 and MMP9 were not significantly affected upon low dose (15 Gy) carbon-ion beam IR alone or in combination with CDDP but were markedly upregulated upon treatment with CDDP alone relative to control. However, IR with a high dose (25 Gy) carbon-ion beam inhibited tumor growth without upregulating these proteins. In conclusion, the combination of IR with a low dose (15 Gy) carbon ion beam and CDDP effectively suppressed MPM tumor in vivo without significantly upregulating CXCL12, MMP2 and MMP9, suggesting that combination therapy of carbon ion beam IR and chemotherapy is a promising therapeutic strategy for MPM.
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Affiliation(s)
- Sei Sai
- Department of Charged Particle Therapy Research, Institute of Quantum Medical Science, National Institutes for Quantum Science and TechnologyChiba, Japan
| | - Taiju Yamada
- QST Hospital, National Institutes for Quantum and Radiological Science and TechnologyChiba, Japan
| | - Keiko Ito
- Department of Advanced Nuclear Medicine Sciences, Institute of Quantum Medical Science, National Institutes for Quantum Science and TechnologyChiba, Japan
| | - Nobuyuki Kanematsu
- Department of Accelerator and Medical Physics, Institute of Quantum Medical Science, National Institutes for Quantum Science and TechnologyChiba, Japan
| | - Masao Suzuki
- Department of Charged Particle Therapy Research, Institute of Quantum Medical Science, National Institutes for Quantum Science and TechnologyChiba, Japan
| | - Mitsuhiro Hayashi
- Syneos Health Clinical K.K.1-2-70 Konan, Minato-ku, Tokyo 108-0075, Japan
| | - Masashi Koto
- Department of Charged Particle Therapy Research, Institute of Quantum Medical Science, National Institutes for Quantum Science and TechnologyChiba, Japan,QST Hospital, National Institutes for Quantum and Radiological Science and TechnologyChiba, Japan
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Chiu CF, Chiu SJ, Bai LY, Feng CH, Hu JL, Lin WY, Huang HY, Weng JR. A macrolide from Streptomyces sp. modulates apoptosis and autophagy through Mcl-1 downregulation in human breast cancer cells. ENVIRONMENTAL TOXICOLOGY 2021; 36:1316-1325. [PMID: 33713530 DOI: 10.1002/tox.23128] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 02/08/2021] [Accepted: 03/04/2021] [Indexed: 06/12/2023]
Abstract
Secondary metabolites in marine organisms exhibit various pharmacological activities against diseases, such as cancer. In this study, the anti-proliferative effect of JBIR-100, a macrolide isolated from Streptomyces sp., was investigated in breast cancer cells. Cell growth was inhibited in response to JBIR-100 treatment concentration- and time-dependently in both MCF-7 and MDA-MB-231 breast cancer cells. JBIR-100 caused apoptosis, as verified by caspase activation and the cleavage of PARP. Western blotting revealed that JBIR-100 modulated the expression of Akt/NF-κB signaling components and Bcl-2 family members. Overexpression of Mcl-1 partially rescued MCF-7 cells from JBIR-100-induced cytotoxicity. In addition, transmission electron microscopy analyses, confocal analysis, and western blot assay indicated that JBIR-100 inhibited autophagy in MCF-7 cells. Exposure to the autophagy inhibitor did not synergize JBIR-100-induced apoptosis. In summary, our results suggested that JBIR-100 may be potentially used for breast cancer therapy.
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Affiliation(s)
- Chang-Fang Chiu
- Division of Hematology and Oncology, Department of Internal Medicine, China Medical University Hospital, Taichung, Taiwan
- Cancer Center, China Medical University Hospital, Taichung, Taiwan
- College of Medicine, China Medical University, Taichung, Taiwan
| | - Shih-Jiuan Chiu
- School of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Li-Yuan Bai
- Division of Hematology and Oncology, Department of Internal Medicine, China Medical University Hospital, Taichung, Taiwan
- College of Medicine, China Medical University, Taichung, Taiwan
| | - Chia-Hsien Feng
- Department of Fragrance and Cosmetic Science, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Jing-Lan Hu
- Cancer Center, China Medical University Hospital, Taichung, Taiwan
| | - Wei-Yu Lin
- Department of Pharmacy, Kinmen Hospital, Ministry of Health and Welfare, Kinmen, Taiwan
| | - Hao-Yu Huang
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Jing-Ru Weng
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, Taiwan
- Doctoral Degree Program in Marine Biotechnology, National Sun Yat-sen University, Kaohsiung, Taiwan
- Department of Biotechnology, Kaohsiung Medical University, Kaohsiung, Taiwan
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Kumar D, Kommalapati VK, Jerald MK, Tangutur AD. Fluorinated thiazolidinol drives autophagic cell death in pancreatic cancer cells via AMPK activation and perturbation of critical sentinels of oncogenic signaling. Chem Biol Interact 2021; 343:109433. [PMID: 33689707 DOI: 10.1016/j.cbi.2021.109433] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 02/23/2021] [Accepted: 03/03/2021] [Indexed: 12/25/2022]
Abstract
Pancreatic cancer is one of the most malignant cancers around the world. The co-occurrence of mutation in KRAS and p53 makes it highly aggressive, proliferative, metastatic, and resistant to apoptotic cell death. Therefore, there is a need to trigger an alternate mechanism of cancer cell death in apoptosis-resistant pancreatic cancer. Autophagic cell death could be an alternate viable option for treatment in such cases. Thus, the identification of small molecules as autophagy modulators with potent anticancer efficacy would be of great importance in pancreatic cancer. The present study investigates fluorinated thiazolidionol (FTZ) driven autophagy modulation, underlying mechanism, and regulation of critical sentinels of oncogenic signaling in pancreatic cancer cells. We identified that FTZ triggered autophagic cell death in pancreatic cancer cells, independent of apoptosis evidenced by an increase in cytoplasmic vacuoles formation, autophagy flux, LC3-II expression, and p62 degradation. Further, the crucial events of apoptosis i.e., Caspase-3 activation and PARP cleavage, were not observed, indicating the non-occurrence of apoptotic cell death. Moreover, FTZ was able to activate AMPK and suppress PI3k/Akt/mTOR as well as MEK/ERK, the key oncogenic signaling pathways in cancer cells. Furthermore, treatment with FTZ suppressed migration, invasion, and angiogenesis in pancreatic cancer cells. Studies in vivo revealed significant regression of tumors by FTZ in nude mice model. Overall, our study demonstrates that FTZ induces autophagic cell death in pancreatic cancer cells independent of apoptosis, which is accompanied by AMPK activation and suppression of critical sentinels of oncogenic signaling in pancreatic cancer cells.
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Affiliation(s)
- Dinesh Kumar
- Department of Applied Biology, CSIR- Indian Institute of Chemical Technology, Hyderabad, 500007, Telangana, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-HRDC Campus, Sector 19, Kamla Nehru Nagar, Ghaziabad, Uttar Pradesh, 201 002, India
| | - Vamsi Krishna Kommalapati
- Department of Applied Biology, CSIR- Indian Institute of Chemical Technology, Hyderabad, 500007, Telangana, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-HRDC Campus, Sector 19, Kamla Nehru Nagar, Ghaziabad, Uttar Pradesh, 201 002, India
| | - Mahesh Kumar Jerald
- CSIR-Centre for Cellular and Molecular Biology, Hyderabad, 500007, Telangana, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-HRDC Campus, Sector 19, Kamla Nehru Nagar, Ghaziabad, Uttar Pradesh, 201 002, India
| | - Anjana Devi Tangutur
- Department of Applied Biology, CSIR- Indian Institute of Chemical Technology, Hyderabad, 500007, Telangana, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-HRDC Campus, Sector 19, Kamla Nehru Nagar, Ghaziabad, Uttar Pradesh, 201 002, India.
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Lv P, Man S, Xie L, Ma L, Gao W. Pathogenesis and therapeutic strategy in platinum resistance lung cancer. Biochim Biophys Acta Rev Cancer 2021; 1876:188577. [PMID: 34098035 DOI: 10.1016/j.bbcan.2021.188577] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 05/25/2021] [Accepted: 05/30/2021] [Indexed: 12/20/2022]
Abstract
Platinum compounds (cisplatin and carboplatin) represent the most active anticancer agents in clinical use both of lung cancer in mono-and combination therapies. However, platinum resistance limits its clinical application. It is necessary to understand the molecular mechanism of platinum resistance, identify predictive markers, and develop newer, more effective and less toxic agents to treat platinum resistance in lung cancer. Here, it summarizes the main molecular mechanisms associated with platinum resistance in lung cancer and the development of new approaches to tackle this clinically relevant problem. Moreover, it could lead to the development of more effective treatment for refractory lung cancer in future.
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Affiliation(s)
- Panpan Lv
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Microbiology, Ministry of Education, Tianjin Key Laboratory of Industry Microbiology, National and Local United Engineering Lab of Metabolic Control Fermentation Technology, China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Shuli Man
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Microbiology, Ministry of Education, Tianjin Key Laboratory of Industry Microbiology, National and Local United Engineering Lab of Metabolic Control Fermentation Technology, China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China.
| | - Lu Xie
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Microbiology, Ministry of Education, Tianjin Key Laboratory of Industry Microbiology, National and Local United Engineering Lab of Metabolic Control Fermentation Technology, China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Long Ma
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Industrial Microbiology, Ministry of Education, Tianjin Key Laboratory of Industry Microbiology, National and Local United Engineering Lab of Metabolic Control Fermentation Technology, China International Science and Technology Cooperation Base of Food Nutrition/Safety and Medicinal Chemistry, College of Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Wenyuan Gao
- Tianjin Key Laboratory for Modern Drug Delivery and High Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China.
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p38β (MAPK11) mediates gemcitabine-associated radiosensitivity in sarcoma experimental models. Radiother Oncol 2020; 156:136-144. [PMID: 33310004 DOI: 10.1016/j.radonc.2020.12.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 11/30/2020] [Accepted: 12/01/2020] [Indexed: 12/08/2022]
Abstract
BACKGROUND AND PURPOSE Gemcitabine is an antitumour agent currently used in the treatment of several types of cancer with known properties as a radiosensitizer. p38MAPK signalling pathway has been shown to be a major determinant in the cellular response to gemcitabine in different experimental models. However, the molecular mechanism implicated in gemcitabine-associated radiosensitivity remains unknown. MATERIALS AND METHODS The human sarcoma cell lines A673 and HT1080, and a mouse cell line derived from a 3-methylcholanthrene induced sarcoma were used as experimental models. Modulation of p38MAPKs was performed by pharmacological approaches (SB203580) and genetic interference using lentiviral vectors coding for specific shRNAs. Viability was assessed by MTT. Gene expression was evaluated by western blot and RT-qPCR. Induction of apoptosis was monitored by caspase 3/7 activity. Response to ionizing radiation was evaluated by clonogenic assays. RESULTS Our data demonstrate that chemical inhibition of p38MAPK signalling pathway blocks gemcitabine radiosensitizing potential. Genetic interference of MAPK14 (p38α), the most abundantly expressed and best characterized p38MAPK, despite promoting resistance to gemcitabine, it does not affect its radiosensitizing potential. Interestingly, specific knockdown of MAPK11 (p38β) induces a total loss of the radiosensitivity associated to gemcitabine, as well as a marked increase in the resistance to the drug. CONCLUSION The present work identifies p38β as a major determinant of the radiosensitizing potential of gemcitabine without implication of p38α, suggesting that p38β status should be analysed in those cases in which gemcitabine is combined with ionizing radiation.
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Proteomics reveals a therapeutic vulnerability via the combined blockade of APE1 and autophagy in lung cancer A549 cells. BMC Cancer 2020; 20:634. [PMID: 32641008 PMCID: PMC7346405 DOI: 10.1186/s12885-020-07111-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 06/25/2020] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Drug resistance is a major cause of therapeutic failure that is often associated with elevated autophagy and apurinic/apyrimidinic endonuclease 1 (APE1) expression. Herein, we investigated the role of APE1 and autophagy in A549 cells treated with cisplatin. METHODS SILAC proteomics was applied to obtain a panoramic view of cisplatin treatment in KRASG12S-mutant A549 cells. Quantity analysis of cellular apoptosis and autophagy was based on flow cytometry. Western blotting was used to examine the expression levels of apoptosis- and autophagy-related proteins, as well as those of APE1. Knockdown of APE1 was achieved by RNA interference. Immunoprecipitation was further employed to reveal the molecular interaction of APE1, p53, and LC3 when A549 cells were exposed to cisplatin. RESULTS SILAC proteomics revealed that 72 canonical pathways, including base excision repair (BER) and autophagy signalling pathways, were regulated after cisplatin treatment in A549 cells. Cisplatin markedly induced autophagy and apoptosis in A549 cells, accompanied by remarkable APE1 increase. Suppression of autophagy enhanced the inhibition effect of cisplatin on cell growth, proliferation, and colony formation; however, APE1 inhibition enhanced the expression of LC3-I/II, suggesting that APE1 and autophagy are compensatory for cell survival to evade the anticancer action of cisplatin. Immunoprecipitation results revealed the triple complex of APE1-p53-LC3 in response to cisplatin plus CQ in A549 cells. Dual inhibition of APE1 and autophagy significantly enhanced cisplatin-induced apoptosis, which eventually overcame drug resistance in cisplatin-resistant A549 cells. CONCLUSIONS Dual inhibition of APE1 and autophagy greatly enhances apoptosis in parental KRASG12S-mutant A549 cells and cisplatin-resistant A549 cells via regulation of APE1-p53-LC3 complex assembly, providing therapeutic vulnerability to overcome cisplatin resistance in the context of KRASG12S-mutant lung cancer.
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Chen M, Zhang S, Nie Z, Wen X, Gao Y. Identification of an Autophagy-Related Prognostic Signature for Clear Cell Renal Cell Carcinoma. Front Oncol 2020; 10:873. [PMID: 32547955 PMCID: PMC7274034 DOI: 10.3389/fonc.2020.00873] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 05/04/2020] [Indexed: 12/23/2022] Open
Abstract
Abnormal autophagy is closely related to the development of cancer. Many studies have demonstrated that autophagy plays an important role in biological function in clear cell renal cell carcinoma (ccRCC). This study aimed to construct a prognostic signature for ccRCC based on autophagy-related genes (ARGs) to predict the prognosis of ccRCC. Differentially expressed ARGs were obtained from ccRCC RNA-seq data in The Cancer Genome Atlas (TCGA) database. ARGs were enriched by gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG). The prognostic ARGs used to construct the risk score models for overall survival (OS) and disease-free survival (DFS) were identified by Cox regression analyses. According to the median value of the risk score, patients were divided into a high-risk group and a low-risk group. The OS and DFS were analyzed by the Kaplan-Meier method. The predictive accuracy was determined by a receiver operating characteristic (ROC) curve analysis. Additionally, we performed stratification analyses based on different clinical variables and evaluated the correlation between the risk score and the clinical variables. The differentially expressed ARGs were mainly enriched in the platinum drug resistance pathway. The prognostic signatures based on 11 ARGs for OS and 5 ARGs for DFS were constructed and showed that the survive time was significantly shorter in the high-risk group than in the low-risk group (P < 0.001). The ROC curve for OS exhibited good predictive accuracy, with an area under the curve value of 0.738. In the stratification analyses, the OS time of the high-risk group was shorter than that of the low-risk group stratified by different clinical variables. In conclusion, an autophagy-related signature for OS we constructed can independently predict the prognosis of ccRCC patient, and provide a deep understanding of the potential biological mechanisms of autophagy in ccRCC.
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Affiliation(s)
- Mei Chen
- Central Laboratory, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, Haikou, China
| | - Shufang Zhang
- Central Laboratory, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, Haikou, China
| | - Zhenyu Nie
- Central Laboratory, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, Haikou, China
| | - Xiaohong Wen
- Central Laboratory, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, Haikou, China
| | - Yuanhui Gao
- Central Laboratory, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, Haikou, China
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García‐Cano J, Sánchez‐Tena S, Sala‐Gaston J, Figueras A, Viñals F, Bartrons R, Ventura F, Rosa JL. Regulation of the MDM2-p53 pathway by the ubiquitin ligase HERC2. Mol Oncol 2020; 14:69-86. [PMID: 31665549 PMCID: PMC6944118 DOI: 10.1002/1878-0261.12592] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 09/30/2019] [Accepted: 10/28/2019] [Indexed: 12/20/2022] Open
Abstract
The p53 tumor suppressor protein is a transcription factor that plays a prominent role in protecting cells from malignant transformation. Protein levels of p53 and its transcriptional activity are tightly regulated by the ubiquitin E3 ligase MDM2, the gene expression of which is transcriptionally regulated by p53 in a negative feedback loop. The p53 protein is transcriptionally active as a tetramer, and this oligomerization state is modulated by a complex formed by NEURL4 and the ubiquitin E3 ligase HERC2. Here, we report that MDM2 forms a complex with oligomeric p53, HERC2, and NEURL4. HERC2 knockdown results in a decline in MDM2 protein levels without affecting its protein stability, as it reduces its mRNA expression by inhibition of its promoter activation. DNA damage induced by bleomycin dissociates MDM2 from the p53/HERC2/NEURL4 complex and increases the phosphorylation and acetylation of oligomeric p53 bound to HERC2 and NEURL4. Moreover, the MDM2 promoter, which contains p53-response elements, competes with HERC2 for binding of oligomeric, phosphorylated and acetylated p53. We integrate these findings in a model showing the pivotal role of HERC2 in p53-MDM2 loop regulation. Altogether, these new insights in p53 pathway regulation are of great interest in cancer and may provide new therapeutic targets.
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Affiliation(s)
- Jesús García‐Cano
- Departament de Ciències FisiològiquesInstitut d’Investigació de Bellvitge (IDIBELL)Universitat de Barcelona: Pavelló de GovernSpain
| | - Susana Sánchez‐Tena
- Departament de Ciències FisiològiquesInstitut d’Investigació de Bellvitge (IDIBELL)Universitat de Barcelona: Pavelló de GovernSpain
| | - Joan Sala‐Gaston
- Departament de Ciències FisiològiquesInstitut d’Investigació de Bellvitge (IDIBELL)Universitat de Barcelona: Pavelló de GovernSpain
| | - Agnès Figueras
- Departament de Ciències FisiològiquesInstitut d’Investigació de Bellvitge (IDIBELL)Universitat de Barcelona: Pavelló de GovernSpain
| | - Francesc Viñals
- Departament de Ciències FisiològiquesInstitut d’Investigació de Bellvitge (IDIBELL)Universitat de Barcelona: Pavelló de GovernSpain
| | - Ramon Bartrons
- Departament de Ciències FisiològiquesInstitut d’Investigació de Bellvitge (IDIBELL)Universitat de Barcelona: Pavelló de GovernSpain
| | - Francesc Ventura
- Departament de Ciències FisiològiquesInstitut d’Investigació de Bellvitge (IDIBELL)Universitat de Barcelona: Pavelló de GovernSpain
| | - Jose Luis Rosa
- Departament de Ciències FisiològiquesInstitut d’Investigació de Bellvitge (IDIBELL)Universitat de Barcelona: Pavelló de GovernSpain
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Sosa Iglesias V, Theys J, Groot AJ, Barbeau LMO, Lemmens A, Yaromina A, Losen M, Houben R, Dubois L, Vooijs M. Synergistic Effects of NOTCH/γ-Secretase Inhibition and Standard of Care Treatment Modalities in Non-small Cell Lung Cancer Cells. Front Oncol 2018; 8:460. [PMID: 30464927 PMCID: PMC6234899 DOI: 10.3389/fonc.2018.00460] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 10/01/2018] [Indexed: 12/17/2022] Open
Abstract
Background: Lung cancer is the leading cause of cancer death worldwide. More effective treatments are needed to increase durable responses and prolong patient survival. Standard of care treatment for patients with non-operable stage III-IV NSCLC is concurrent chemotherapy and radiation. An activated NOTCH signaling pathway is associated with poor outcome and treatment resistance in non-small cell lung cancer (NSCLC). NOTCH/γ-secretase inhibitors have been effective in controlling tumor growth in preclinical models but the therapeutic benefit of these inhibitors as monotherapy in patients has been limited so far. Because NOTCH signaling has been implicated in treatment resistance, we hypothesized that by combining NOTCH inhibitors with chemotherapy and radiotherapy this could result in an increased therapeutic effect. A direct comparison of the effects of NOTCH inhibition when combined with current treatment combinations for NSCLC is lacking. Methods: Using monolayer growth assays, we screened 101 FDA-approved drugs from the Cancer Therapy Evaluation Program alone, or combined with radiation, in the H1299 and H460 NSCLC cell lines to identify potent treatment interactions. Subsequently, using multicellular three-dimensional tumor spheroid assays, we tested a selection of drugs used in clinical practice for NSCLC patients, and combined these with a small molecule inhibitor, currently being tested in clinical trials, of the NOTCH pathway (BMS-906024) alone, or in combination with radiation, and measured specific spheroid growth delay (SSGD). Statistical significance was determined by one-way ANOVA with post-hoc Bonferroni correction, and synergism was assessed using two-way ANOVA. Results: Monolayer assays in H1299 and H460 suggest that 21 vs. 5% were synergistic, and 17 vs. 11% were additive chemoradiation interactions, respectively. In H1299 tumor spheroids, significant SSGD was obtained for cisplatin, etoposide, and crizotinib, which increased significantly after the addition of the NOTCH inhibitor BMS-906024 (but not for paclitaxel and pemetrexed), and especially in triple combination with radiation. Synergistic interactions were observed when BMS-906024 was combined with chemoradiation (cisplatin, paclitaxel, docetaxel, and crizotinib). Similar results were observed for H460 spheroids using paclitaxel or crizotinib in dual combination treatment with NOTCH inhibition and triple with radiation. Conclusions: Our findings point to novel synergistic combinations of NOTCH inhibition and chemoradiation that should be tested in NSCLC in vivo models for their ability to achieve an improved therapeutic ratio.
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Affiliation(s)
- Venus Sosa Iglesias
- Department of Radiotherapy (MAASTRO), GROW-School of Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, Netherlands
| | - Jan Theys
- Department of Radiotherapy (MAASTRO), GROW-School of Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, Netherlands
| | - Arjan J Groot
- Department of Radiotherapy (MAASTRO), GROW-School of Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, Netherlands
| | - Lydie M O Barbeau
- Department of Radiotherapy (MAASTRO), GROW-School of Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, Netherlands
| | - Alyssa Lemmens
- Department of Radiotherapy (MAASTRO), GROW-School of Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, Netherlands
| | - Ala Yaromina
- Department of Radiotherapy (MAASTRO), GROW-School of Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, Netherlands
| | - Mario Losen
- Department of Psychology and Neuropsychology, MHeNS, Maastricht University Medical Center, Maastricht, Netherlands
| | - Ruud Houben
- Department of Radiotherapy (MAASTRO), GROW-School of Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, Netherlands.,MAASTRO Clinic, Maastricht, Netherlands
| | - Ludwig Dubois
- Department of Radiotherapy (MAASTRO), GROW-School of Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, Netherlands
| | - Marc Vooijs
- Department of Radiotherapy (MAASTRO), GROW-School of Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, Netherlands.,MAASTRO Clinic, Maastricht, Netherlands
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11
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Chen H, Zhao C, He R, Zhou M, Liu Y, Guo X, Wang M, Zhu F, Qin R, Li X. Danthron suppresses autophagy and sensitizes pancreatic cancer cells to doxorubicin. Toxicol In Vitro 2018; 54:345-353. [PMID: 30389604 DOI: 10.1016/j.tiv.2018.10.019] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Revised: 10/28/2018] [Accepted: 10/29/2018] [Indexed: 12/21/2022]
Abstract
In contrast to the steady increase in survival observed for most cancer types, advances have been slow for pancreatic cancers. Current chemotherapy has limited benefits for patients with pancreatic cancer. Therefore, there is an urgent need for effective pancreatic cancer treatment strategies. At present, targeting the autophagic pathway is regarded as a promising new strategy for cancer treatment. Danthron (1,8-dihydroxyanthrquinone), a component from Rheum palmatum L. (polygonaceae), has several biological activities. However, the inhibition of autophagy by danthron has never been recognized, previously.Here we find that danthron may prevent autophagy, inhibit proliferation and induce apoptosis in pancreatic cancer cells in vitro. Autophagy induced by doxorubicin plays a protective role in pancreatic cancer cells and inhibition of autophagy by chloroquine or silencing autophagy protein 5 (Atg5) may chemosensitize pancreatic cancer cell lines to doxorubicin. Similarly, inhibition of autophagy by danthron also enhances toxicity of doxorubicin to pancreatic cancer cells. These results indicate that danthron has an anticancer effect and can sensitize the chemotherapeutic effect of doxorubicin on pancreatic cancer cells. These findings also suggest that inhibition of autophagy may be an effective way to promote the chemotherapy of pancreatic cancer.
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Affiliation(s)
- Hua Chen
- Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Chunle Zhao
- Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Ruizhi He
- Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Min Zhou
- Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yuhui Liu
- Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Xingjun Guo
- Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
| | - Min Wang
- Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Feng Zhu
- Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Renyi Qin
- Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
| | - Xu Li
- Department of Biliary-Pancreatic Surgery, Affiliated Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
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12
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Autophagic cell death associated to Sorafenib in renal cell carcinoma is mediated through Akt inhibition in an ERK1/2 independent fashion. PLoS One 2018; 13:e0200878. [PMID: 30048489 PMCID: PMC6062059 DOI: 10.1371/journal.pone.0200878] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 06/15/2018] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVES To fully clarify the role of Mitogen Activated Protein Kinase in the therapeutic response to Sorafenib in Renal Cell Carcinoma as well as the cell death mechanism associated to this kinase inhibitor, we have evaluated the implication of several Mitogen Activated Protein Kinases in Renal Cell Carcinoma-derived cell lines. MATERIALS AND METHODS An experimental model of Renal Cell Carcinoma-derived cell lines (ACHN and 786-O cells) was evaluated in terms of viability by MTT assay, induction of apoptosis by caspase 3/7 activity, autophagy induction by LC3 lipidation, and p62 degradation and kinase activity using phospho-targeted antibodies. Knock down of ATG5 and ERK5 was performed using lentiviral vector coding specific shRNA. RESULTS Our data discard Extracellular Regulated Kinase 1/2 and 5 as well as p38 Mitogen Activated Protein Kinase pathways as mediators of Sorafenib toxic effect but instead indicate that the inhibitory effect is exerted through the PI3K/Akt signalling pathway. Furthermore, we demonstrate that inhibition of Akt mediates cell death associated to Sorafenib without caspase activation, and this is consistent with the induction of autophagy, as indicated by the use of pharmacological and genetic approaches. CONCLUSION The present report demonstrates that Sorafenib exerts its toxic effect through the induction of autophagy in an Akt-dependent fashion without the implication of Mitogen Activated Protein Kinase. Therefore, our data discard the use of inhibitors of the RAF-MEK-ERK1/2 signalling pathway in RCC and support the use of pro-autophagic compounds, opening new therapeutic opportunities for Renal Cell Carcinoma.
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13
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Hua L, Zhu G, Wei J. MicroRNA-1 overexpression increases chemosensitivity of non-small cell lung cancer cells by inhibiting autophagy related 3-mediated autophagy. Cell Biol Int 2018; 42:1240-1249. [PMID: 29851226 DOI: 10.1002/cbin.10995] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 05/27/2018] [Indexed: 12/31/2022]
Affiliation(s)
- Li Hua
- Department of Respiratory and Critical Care Medicine; Peking University International Hospital; Beijing 102206 China
| | - Guirong Zhu
- Department of Respiratory; The 309th Hospital of Chinese People's Liberation Army; Beijing 100091 China
| | - Jianguo Wei
- Emergency Internal Medicine; Xiyuan Hospital of Chinese Academy of Chinese Medical Sciences; Beijing 100091 China
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14
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Simabuco FM, Morale MG, Pavan IC, Morelli AP, Silva FR, Tamura RE. p53 and metabolism: from mechanism to therapeutics. Oncotarget 2018; 9:23780-23823. [PMID: 29805774 PMCID: PMC5955117 DOI: 10.18632/oncotarget.25267] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Accepted: 04/06/2018] [Indexed: 11/25/2022] Open
Abstract
The tumor cell changes itself and its microenvironment to adapt to different situations, including action of drugs and other agents targeting tumor control. Therefore, metabolism plays an important role in the activation of survival mechanisms to keep the cell proliferative potential. The Warburg effect directs the cellular metabolism towards an aerobic glycolytic pathway, despite the fact that it generates less adenosine triphosphate than oxidative phosphorylation; because it creates the building blocks necessary for cell proliferation. The transcription factor p53 is the master tumor suppressor; it binds to more than 4,000 sites in the genome and regulates the expression of more than 500 genes. Among these genes are important regulators of metabolism, affecting glucose, lipids and amino acids metabolism, oxidative phosphorylation, reactive oxygen species (ROS) generation and growth factors signaling. Wild-type and mutant p53 may have opposing effects in the expression of these metabolic genes. Therefore, depending on the p53 status of the cell, drugs that target metabolism may have different outcomes and metabolism may modulate drug resistance. Conversely, induction of p53 expression may regulate differently the tumor cell metabolism, inducing senescence, autophagy and apoptosis, which are dependent on the regulation of the PI3K/AKT/mTOR pathway and/or ROS induction. The interplay between p53 and metabolism is essential in the decision of cell fate and for cancer therapeutics.
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Affiliation(s)
- Fernando M. Simabuco
- Laboratory of Functional Properties in Foods, School of Applied Sciences (FCA), Universidade de Campinas (UNICAMP), Limeira, São Paulo, Brazil
| | - Mirian G. Morale
- Center for Translational Investigation in Oncology/LIM24, Instituto do Câncer do Estado de São Paulo (ICESP), São Paulo, Brazil
- Department of Radiology and Oncology, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - Isadora C.B. Pavan
- Laboratory of Functional Properties in Foods, School of Applied Sciences (FCA), Universidade de Campinas (UNICAMP), Limeira, São Paulo, Brazil
| | - Ana P. Morelli
- Laboratory of Functional Properties in Foods, School of Applied Sciences (FCA), Universidade de Campinas (UNICAMP), Limeira, São Paulo, Brazil
| | - Fernando R. Silva
- Laboratory of Functional Properties in Foods, School of Applied Sciences (FCA), Universidade de Campinas (UNICAMP), Limeira, São Paulo, Brazil
| | - Rodrigo E. Tamura
- Center for Translational Investigation in Oncology/LIM24, Instituto do Câncer do Estado de São Paulo (ICESP), São Paulo, Brazil
- Department of Radiology and Oncology, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
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15
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Echeverri M, Alvarez-Valdés A, Navas F, Perles J, Sánchez-Pérez I, Quiroga AG. Using phosphine ligands with a biological role to modulate reactivity in novel platinum complexes. ROYAL SOCIETY OPEN SCIENCE 2018; 5:171340. [PMID: 29515851 PMCID: PMC5830740 DOI: 10.1098/rsos.171340] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 01/16/2018] [Indexed: 05/04/2023]
Abstract
Three platinum complexes with cis and trans configuration cis-[Pt(TCEP)2Cl2], cis-[Pt(tmTCEP)2Cl2] and trans-[Pt(TCEP)2Cl2], where TCEP is tris(2-carboxyethyl)phosphine, have been synthesized and fully characterized by usual techniques including single-crystal X-ray diffraction for trans-[Pt(TCEP)2Cl2] and cis-[Pt(tmTCEP)2Cl2]. Here, we also report on an esterification process of TCEP, which takes place in the presence of alcohols, leading to a platinum complex coordinated to an ester tmTCEP (2-methoxycarbonylethyl phosphine) ligand. The stability in solution of the three compounds and their interaction with biological models such as DNA (pBR322 and calf thymus DNA) and proteins (lysozyme and RNase) have also been studied.
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Affiliation(s)
- Marcelo Echeverri
- Inorganic Chemistry Department, Universidad Autónoma de Madrid, Madrid, Spain
| | | | - Francisco Navas
- Inorganic Chemistry Department, Universidad Autónoma de Madrid, Madrid, Spain
| | - Josefina Perles
- Single Crystal XRD Laboratory, SIdI, Universidad Autónoma de Madrid, Madrid, Spain
| | | | - A. G. Quiroga
- Inorganic Chemistry Department, Universidad Autónoma de Madrid, Madrid, Spain
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16
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Jing Z, Fei W, Zhou J, Zhang L, Chen L, Zhang X, Liang X, Xie J, Fang Y, Sui X, Han W, Pan H. Salvianolic acid B, a novel autophagy inducer, exerts antitumor activity as a single agent in colorectal cancer cells. Oncotarget 2018; 7:61509-61519. [PMID: 27557491 PMCID: PMC5308668 DOI: 10.18632/oncotarget.11385] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Accepted: 08/13/2016] [Indexed: 12/19/2022] Open
Abstract
Salvianolic Acid B (Sal B), an active compound extracted from the Chinese herb Salvia miltiorrhiza, is attracting more and more attention due to its biological activities, including antioxidant, anticoagulant and antitumor effects. However, autophagy induction in cancer cells by Sal B has never been recognized. In this study, we demonstrated that Sal B induced cell death and triggered autophagy in HCT116 and HT29 cells in a dose-dependent manner. Specific inhibition of autophagy by 3-MA or shRNA targeting Atg5 rescued Sal B-induced cell death in vitro and in vivo, suggesting that Sal B-induced autophagy may play a pro-death role and contribute to the cell death of colorectal cancer cell lines. Furthermore, AKT/mTOR signaling pathway was demonstrated to be a critical mediator in regulating Sal B-induced cell death. Overexpression of AKT by the transfection with AKT plasmid or pretreatment with insulin decreased Sal B-induced autophagy and cell death. Inversely, inhibition of AKT by LY294002 treatment markedly enhanced Sal B-induced autophagy and cell death. Taken together, our results demonstrate, for the first time, that Sal B is a novel autophagy inducer and exerts its antitumor activity as a single agent in colorectal cancer cells through the suppression of AKT/mTOR pathway.
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Affiliation(s)
- Zhao Jing
- Department of Medical Oncology, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Weiqiang Fei
- Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Jichun Zhou
- Department of Surgical Oncology, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Lumin Zhang
- Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Liuxi Chen
- Department of Medical Oncology, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Xiaomin Zhang
- Department of Medical Oncology, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Xiao Liang
- Department of General Surgery, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Jiansheng Xie
- Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Yong Fang
- Department of Medical Oncology, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Xinbing Sui
- Department of Medical Oncology, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Weidong Han
- Department of Medical Oncology, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Hongming Pan
- Department of Medical Oncology, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China.,Biomedical Research Center and Key Laboratory of Biotherapy of Zhejiang Province, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
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17
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Sai S, Suzuki M, Kim EH, Hayashi M, Vares G, Yamamoto N, Miyamoto T. Effects of carbon ion beam alone or in combination with cisplatin on malignant mesothelioma cells in vitro. Oncotarget 2017; 9:14849-14861. [PMID: 29599911 PMCID: PMC5871082 DOI: 10.18632/oncotarget.23756] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Accepted: 12/15/2017] [Indexed: 12/22/2022] Open
Abstract
Malignant mesothelioma (MM) is extremely aggressive and a typical refractory cancer. In this study we investigated how effective on killing MM cells by carbon ion beam alone or in combination with cisplatin (CDDP) in vitro. Carbon ion beam (at the center of SOBP with 50 keV/µm of average LET) dose-independently suppressed MM cells MESO-1 and H226 cell viability and in combination with CDDP (25 μM) significantly enhanced its action. Relative biological effectiveness (RBE) values at 73 keV/μm and 13 keV/μm portion of carbon ion beam was estimated as 2.82-2.93 and 1.19-1.22 at D10 level relative to X-ray, respectively by using colony formation assay. Quantitative real time PCR analysis showed that expression of apoptosis-related BAX and autophagy-related Beclin1 and ATG7 was significantly enhanced by carbon ion beam alone or in combination with CDDP. Apoptosis analysis showed that caspase 3/7 activity and the percentage of apoptotic cells was dose-dependently increased after carbon ion beam and it was further increased when combined with CDDP. Spheroid formation ability of cancer stem like CD44+/CD26+ cells was significantly inhibited by carbon ion beam combined with CDDP. Besides, carbon ion beam combined with cisplatin significantly inhibited cell cycle progression (sub-G1 arrest) and induced more large number of γH2AX foci. In conclusion, carbon ion beam combined with CDDP has superior potential to kill MM cells including CSCs with enhanced apoptosis.
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Affiliation(s)
- Sei Sai
- Department of Basic Medical Sciences for Radiation Damages, National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology, Chiba, Japan
| | - Masao Suzuki
- Department of Basic Medical Sciences for Radiation Damages, National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology, Chiba, Japan
| | - Eun Ho Kim
- Division of Applied Radiation Bioscience, Korea Institute of Radiological and Medical Sciences, Gongneung-dong, Nowon-Gu, Seoul, South Korea
| | - Mitsuhiro Hayashi
- Breast Center, Dokkyo Medical University Hospital, Mibu-machi, Shimotsuga-gun, Tochigi, Japan
| | - Guillaume Vares
- Okinawa Institute of Science and Technology (OIST), Advanced Medical Instrumentation Unit, Onna-son, Okinawa, Japan
| | - Naoyoshi Yamamoto
- Hospital of the National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Sciences and Technology, Chiba, Japan
| | - Tadaaki Miyamoto
- Chiba Foundation for Health Promotion and Disease Prevention, Chiba, Japan
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18
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Schlütermann D, Skowron MA, Berleth N, Böhler P, Deitersen J, Stuhldreier F, Wallot-Hieke N, Wu W, Peter C, Hoffmann MJ, Niegisch G, Stork B. Targeting urothelial carcinoma cells by combining cisplatin with a specific inhibitor of the autophagy-inducing class III PtdIns3K complex. Urol Oncol 2017; 36:160.e1-160.e13. [PMID: 29276062 DOI: 10.1016/j.urolonc.2017.11.021] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 10/31/2017] [Accepted: 11/30/2017] [Indexed: 11/28/2022]
Abstract
BACKGROUND Cisplatin-based regimens are routinely employed for the treatment of urothelial carcinoma. However, therapeutic success is hampered by the primary presence of or the development of cisplatin resistance. This chemoresistance is executed by multiple cellular pathways. In recent years, the cellular process of autophagy has been identified as a prosurvival pathway of cancer cells. On the one hand, autophagy enables cancer cells to survive conditions of low oxygen or nutrient supply, frequently found in tumors. On the other hand, autophagy supports chemoresistance of cancer cells. Here, we aimed at investigating the involvement of autophagy for cisplatin resistance in different urothelial carcinoma cell lines. MATERIALS & METHODS We analyzed the expression levels of different autophagy-related proteins in cisplatin-sensitive and cisplatin-resistant urothelial carcinoma cell lines. Furthermore, we performed cell viability assays and caspase activity assays with cells treated with cisplatin, non-specific or specific autophagy inhibitors (chloroquine, 3-methyladenine, SAR405) or combinations thereof. RESULTS We found that autophagy-related proteins are up-regulated in different cisplatin-resistant urothelial carcinoma cells compared to the sensitive parental cell lines. Furthermore, inhibition of autophagy, in general, or of the autophagy-inducing class III PtdIns3K complex, in particular, sensitized both sensitive and resistant urothelial carcinoma cells to cisplatin-induced cytotoxic effects. CONCLUSION We propose that targeting the autophagic machinery might represent a suitable approach to complement or even increase cisplatin efficacy in order to overcome cisplatin resistance in urothelial carcinoma.
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Affiliation(s)
- David Schlütermann
- Institute of Molecular Medicine I, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Margaretha A Skowron
- Department of Urology, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Niklas Berleth
- Institute of Molecular Medicine I, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Philip Böhler
- Institute of Molecular Medicine I, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Jana Deitersen
- Institute of Molecular Medicine I, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Fabian Stuhldreier
- Institute of Molecular Medicine I, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Nora Wallot-Hieke
- Institute of Molecular Medicine I, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Wenxian Wu
- Institute of Molecular Medicine I, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Christoph Peter
- Institute of Molecular Medicine I, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Michèle J Hoffmann
- Department of Urology, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Günter Niegisch
- Department of Urology, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Björn Stork
- Institute of Molecular Medicine I, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany.
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19
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Drug-resistance in doxorubicin-resistant FL5.12 hematopoietic cells: elevated MDR1, drug efflux and side-population positive and decreased BCL2-family member expression. Oncotarget 2017; 8:113013-113033. [PMID: 29348885 PMCID: PMC5762570 DOI: 10.18632/oncotarget.22956] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 11/20/2017] [Indexed: 12/20/2022] Open
Abstract
Chemotherapeutic drug treatment can result in the emergence of drug-resistant cells. By culturing an interleukin-3 (IL-3)-dependent cell line, FL5.12 cells in the presence of the chemotherapeutic drug doxorubicin, we isolated FL/Doxo cells which are multi-drug resistant. Increased levels of drug efflux were detected in FL/Doxo cells which could be inhibited by the MDR1 inhibitor verapamil but not by the MRP1 inhibitor MK571. The effects of TP53 and MEK1 were examined by infection of FL/Doxo cells with retroviruses encoding either a dominant negative TP-53 gene (FL/Doxo+ TP53 (DN) or a constitutively-activated MEK-1 gene (FL/Doxo + MEK1 (CA). Elevated MDR1 but not MRP1 mRNA transcripts were detected by quantitative RT-PCR in the drug-resistant cells while transcripts encoding anti-apoptotic genes such as: BCL2, BCLXL and MCL1 were observed at higher levels in the drug-sensitive FL5.12 cells. The percentage of cells that were side-population positive was increased in the drug-resistant cells compared to the parental line. Drug-resistance and side-positive population cells have been associated with cancer stem cells (CSC). Our studies suggest mechanisms which could allow the targeting of these molecules to prevent drug-resistance.
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20
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Andrographolide enhances cisplatin-mediated anticancer effects in lung cancer cells through blockade of autophagy. Anticancer Drugs 2017; 28:967-976. [PMID: 28692436 DOI: 10.1097/cad.0000000000000537] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Lung cancer is the most common cause of cancer-related death worldwide and the platinum-based drugs such as cisplatin have been used as the first line of the treatment. However, the clinical effectiveness of such chemotherapy is limited by intrinsic or acquired resistance. In this study, we found that cisplatin induced autophagy that attenuated the sensitivity of both A549 and Lewis lung cancer (LLC) cells to cisplatin. In contrast, the clinical drug andrographolide (Andro) suppressed autophagy and enhanced cisplatin-mediated apoptosis in these cells. Using two murine lung cancer models, including a subcutaneously inoculated LLC model and an orthotopic LLC implantation model, we investigated the therapeutic efficacy of the combined treatment of cisplatin and Andro. Compared with the sole cisplatin treatment, combining cisplatin with Andro potentially inhibited tumor growth, reduced the incidence of lung metastases, and relieved renal tubular damage. Moreover, the combined treatment prolonged the life span of tumor-bearing mice. TUNEL and immunohistochemistry assays showed the increase in apoptotic cells and the decrease in both conversion of LC3B-I to LC3B-II and Atg5 protein expression in the tumor tissues from mice with the combined treatment. These results suggest that Andro offers an ideal candidate of autophagy inhibitors in clinical application, and combination of cisplatin with Andro could be a promising strategy for the treatment of lung cancer.
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21
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Shen F, Gai J, Xing J, Guan J, Fu L, Li Q. Dynasore suppresses proliferation and induces apoptosis of the non-small-cell lung cancer cell line A549. Biochem Biophys Res Commun 2017; 495:1158-1166. [PMID: 29175207 DOI: 10.1016/j.bbrc.2017.11.109] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 11/15/2017] [Accepted: 11/17/2017] [Indexed: 01/09/2023]
Abstract
Lung cancer is the leading cause of cancer death worldwide, and most of all cases are non-small-cell lung cancer. Lung cancer is associated with dysregulation of mitochondrial fusion and fission, and inhibition of the fission regulator Dynamin-related protein 1 (Drp1) reduces proliferation and increases apoptosis of lung cancer cells. Dynasore is a small molecule non-selective inhibitor of the GTPase activity of dynamin 1, dynamin 2, and Drp1 in vivo and in vitro. Here, we investigated the effects of dynasore on the proliferation and apoptosis of A549 lung cancer cells, alone and in combination with the chemotherapeutic drug cisplatin. We found that cisplatin increased mitochondrial fission and dynamin 2 expression, whereas dynasore had the opposite effects. However, both cisplatin and dynasore independently induced mitochondrial oxidative stress, leading to mitochondrial dysfunction, reduced cell proliferation, and enhanced apoptosis. Importantly, dynasore significantly augmented the anti-cancer effects of cisplatin. To the best of our knowledge, this is the first report that dynasore inhibits proliferation and induces apoptosis of lung cancer cells, and enhances the inhibitory effects of cisplatin.
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Affiliation(s)
- Feifei Shen
- Department of Pathology, College of Basic Medical Sciences, China Medical University, Shenyang, China
| | - Junda Gai
- Department of Pathology, College of Basic Medical Sciences, China Medical University, Shenyang, China
| | - Jilin Xing
- Department of Pathology, College of Basic Medical Sciences, China Medical University, Shenyang, China
| | - Jingqian Guan
- Department of Pathology, College of Basic Medical Sciences, China Medical University, Shenyang, China
| | - Lin Fu
- Department of Pathology, College of Basic Medical Sciences, China Medical University, Shenyang, China
| | - Qingchang Li
- Department of Pathology, College of Basic Medical Sciences, China Medical University, Shenyang, China.
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22
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Liu J, Li Y, Yang X, Dong Y, Wu J, Chen M. Effects of ginkgol C17:1 on cisplatin-induced autophagy and apoptosis in HepG2 cells. Oncol Lett 2017; 15:1021-1029. [PMID: 29399162 PMCID: PMC5772831 DOI: 10.3892/ol.2017.7398] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Accepted: 09/28/2017] [Indexed: 01/03/2023] Open
Abstract
Previous studies have demonstrated that ginkgol C17:1 significantly inhibits human liver cancer cells and enhances the anticancer activity of cisplatin in vivo and in vitro. However, the mechanism and biological function of ginkgol C17:1 on cells undergoing chemotherapy remain unclear. The aim of the present study was to determine the antitumor activity and mechanism of ginkgol C17:1 in combination with cisplatin in human hepatoblastoma HepG2 cells. The green fluorescent protein (GFP)-light chain 3 (LC3) adenovirus was transfected into HepG2 cells and autophagic flux was determined using fluorescence microscopy. Western blot analysis was also conducted to measure the expression of proteins associated with apoptosis, autophagy and their associated signaling pathways. Compared with the control group, autophagic flux and nucleus aberration rates were significantly increased (P<0.05), and the expression of proteins associated with autophagy and apoptosis were increased in the groups treated with cisplatin or ginkgol C17:1, respectively. However, following co-treatment with ginkgol C17:1 and cisplatin, the autophagic flux and the expression of autophagy proteins decreased; however, the nucleus aberration rate and apoptosis protein expression significantly increased (P<0.05) compared with the group treated with cisplatin alone. Additionally, the signaling pathways of autophagy and apoptosis were also activated following treatment with cisplatin, alone and in combination with ginkgol C17:1. Taken together, these results indicate that ginkgol C17:1 inhibits cisplatin-induced autophagy via AMP-activated protein kinase/ULK1signaling and increases cisplatin-induced apoptosis in HepG2 cells via the phosphoinositide 3-kinase/Akt/mechanistic target of rapamycin pathway.
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Affiliation(s)
- Jun Liu
- Department of Biology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Yueying Li
- Department of Biology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China.,Department of Physiology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Xiaoming Yang
- Department of Food Science and Engineering, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Yan Dong
- Department of Physiology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Jing Wu
- Department of Medical Technology, Jingjiang College, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Min Chen
- Department of Physiology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
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23
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Yong M, Yu T, Tian S, Liu S, Xu J, Hu J, Hu L. DR2 blocker thioridazine: A promising drug for ovarian cancer therapy. Oncol Lett 2017; 14:8171-8177. [PMID: 29344260 DOI: 10.3892/ol.2017.7184] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Accepted: 03/21/2017] [Indexed: 12/12/2022] Open
Abstract
Dopamine receptor 2 (DR2) may be a biomarker for various types of cancer. Ovarian cancer cells overexpress DR2; therefore, blocking DR2 may be a novel treatment strategy for ovarian cancer. Thioridazine, a DR2 blocker, has antineoplastic activity in a variety of cancer cells. In view of the requirement for novel therapeutic agents in ovarian cancer, the present study aimed to determine the potential effects of thioridazine in vitro and in vivo. It was revealed that the DR2 blocker thioridazine induced cell death in a dose-dependent manner in ovarian cancer cells. Thioridazine treatment induced apoptosis and autophagy, which may be attributed to an increased level of reactive oxygen species and associated DNA damage. Additionally, the expression of various proteins increased with oxidative stress, including nuclear factor E2-related factor 2, which is a pivotal transcriptional factor involved in cellular responses to oxidative stress. Heme oxygenase 1, NAPDH quinone dehydrogenase 1 and hypoxia inducible factor-1α and phosphorylated (p)-protein kinase B expression was significantly decreased, and the expression level of p-extracellular signal-related kinases and p-P38 was increased. Using 3-methyl adenine to inhibit autophagy caused the rate of apoptosis to increase. Thioridazine inhibited the growth of SKOV3 xenografts in nude mice. The present study demonstrated that the DR2 blocker thioridazine exhibited anticancer effects in vitro and in vivo, suggesting that thioridazine may be used as a potential drug in ovarian cancer therapy.
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Affiliation(s)
- Min Yong
- Department of Obstetrics and Gynecology, Affiliated Hospital of North Sichuan Medical College, Nanchong, Sichuan 637000, P.R. China
| | - Tinghe Yu
- Department of Obstetrics and Gynecology, Second Affiliated Hospital, Chongqing Medical University, Chongqing 400010, P.R. China
| | - Si Tian
- Department of Rehabilitation, Second Affiliated Hospital, Chongqing Medical University, Chongqing 400010, P.R. China
| | - Shuaibin Liu
- Department of Obstetrics and Gynecology, Second Affiliated Hospital, Chongqing Medical University, Chongqing 400010, P.R. China
| | - Jiao Xu
- Department of Obstetrics and Gynecology, Second Affiliated Hospital, Chongqing Medical University, Chongqing 400010, P.R. China
| | - Jianguo Hu
- Department of Obstetrics and Gynecology, Second Affiliated Hospital, Chongqing Medical University, Chongqing 400010, P.R. China
| | - Lina Hu
- Department of Obstetrics and Gynecology, Second Affiliated Hospital, Chongqing Medical University, Chongqing 400010, P.R. China
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24
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Circu M, Cardelli J, Barr M, O’Byrne K, Mills G, El-Osta H. Modulating lysosomal function through lysosome membrane permeabilization or autophagy suppression restores sensitivity to cisplatin in refractory non-small-cell lung cancer cells. PLoS One 2017; 12:e0184922. [PMID: 28945807 PMCID: PMC5612465 DOI: 10.1371/journal.pone.0184922] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Accepted: 09/02/2017] [Indexed: 11/29/2022] Open
Abstract
Lung cancer is the leading cause of cancer-related deaths. Most patients develop resistance to platinum within several months of treatment. We investigated whether triggering lysosomal membrane permeabilization (LMP) or suppressing autophagy can restore cisplatin susceptibility in lung cancer with acquired chemoresistance. Cisplatin IC50 in A549Pt (parental) and A549cisR (cisplatin resistant) cells was 13 μM and 47 μM, respectively. Following cisplatin exposure, A549cisR cells failed to elicit an apoptotic response. This was manifested by diminished Annexin–V staining, caspase 3 and 9, BAX and BAK activation in resistant but not in parental cells. Chloroquine preferentially promoted LMP in A549cisR cells, revealed by leakage of FITC-dextran into the cytosol as detected by immunofluorescence microscopy. This was confirmed by increased cytosolic cathepsin D signal on Immunoblot. Cell viability of cisplatin-treated A549cisR cells was decreased when co-treated with chloroquine, corresponding to a combination index below 0.8, suggesting synergism between the two drugs. Notably, chloroquine activated the mitochondrial cell death pathway as indicated by increase in caspase 9 activity. Interestingly, inhibition of lysosomal proteases using E64 conferred cytoprotection against cisplatin and chloroquine co-treatment, suggesting that chloroquine-induced cell death occurred in a cathepsin-mediated mechanism. Likewise, blockage of caspases partially rescued A549cisR cells against the cytotoxicity of cisplatin and chloroquine combination. Cisplatin promoted a dose-dependent autophagic flux induction preferentially in A549cisR cells, as evidenced by a surge in LC3-II/α-tubulin following pre-treatment with E64 and increase in p62 degradation. Compared to untreated cells, cisplatin induced an increase in cyto-ID-loaded autophagosomes in A549cisR cells that was further amplified by chloroquine, pointing toward autophagic flux activation by cisplatin. Interestingly, this effect was less pronounced in A549Pt cells. Blocking autophagy by ATG5 depletion using siRNA markedly enhances susceptibility to cisplatin in A549cisR cells. Taken together, our results underscore the utility of targeting lysosomal function in overcoming acquired cisplatin refractoriness in lung cancer.
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Affiliation(s)
- Magdalena Circu
- Feist-Weiller Cancer Center, Louisiana State University Health Sciences Center-Shreveport, Shreveport, Louisiana, United States of America
| | - James Cardelli
- Segue Therapeutics, LLC, Shreveport, Louisiana, United States of America
| | - Martin Barr
- Thoracic Oncology Research Group, Trinity Translational Medicine Institute, Trinity Centre for Health Sciences, St. James’s Hospital & Trinity College Dublin, Dublin, Ireland
| | - Kenneth O’Byrne
- Cancer & Ageing Research Program, Queensland University of Technology, Brisbane, Australia
| | - Glenn Mills
- Feist-Weiller Cancer Center, Louisiana State University Health Sciences Center-Shreveport, Shreveport, Louisiana, United States of America
| | - Hazem El-Osta
- Feist-Weiller Cancer Center, Louisiana State University Health Sciences Center-Shreveport, Shreveport, Louisiana, United States of America
- * E-mail: ,
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25
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Small-molecule RL71-triggered excessive autophagic cell death as a potential therapeutic strategy in triple-negative breast cancer. Cell Death Dis 2017; 8:e3049. [PMID: 28906486 PMCID: PMC5636988 DOI: 10.1038/cddis.2017.444] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 08/01/2017] [Accepted: 08/02/2017] [Indexed: 12/13/2022]
Abstract
Triple-negative breast cancer (TNBC) has an aggressive phenotype and a poor prognosis owing to the high propensity for metastatic progression and the absence of specific targeted treatment. Here, we revealed that small-molecule RL71 targeting sarco/endoplasmic reticulum calcium-ATPase 2 (SERCA2) exhibited potent anti-cancer activity on all TNBC cells tested. Apart from apoptosis induction, RL71 triggered excessive autophagic cell death, the main contributor to RL71-induced TNBC cell death. RL71 augmented the release of Ca2+ from the endoplasmic reticulum (ER) into the cytosol by inhibiting SERCA2 activity. The disruption of calcium homeostasis induced ER stress, leading to apoptosis. More importantly, the elevated intracellular calcium signals induced autophagy through the activation of the CaMKK-AMPK-mTOR pathway and mitochondrial damage. In two TNBC xenograft mouse models, RL71 also displayed strong efficacy including the inhibition of tumor growth, the reduction of metastasis, as well as the prolongation of survival time. These findings suggest SERCA2 as a previous unknown target candidate for TNBC treatment and support the idea that autophagy inducers could be useful as new therapeutics in TNBC treatment.
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26
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DACT1 Overexpression in type I ovarian cancer inhibits malignant expansion and cis-platinum resistance by modulating canonical Wnt signalling and autophagy. Sci Rep 2017; 7:9285. [PMID: 28839145 PMCID: PMC5570946 DOI: 10.1038/s41598-017-08249-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Accepted: 04/27/2017] [Indexed: 12/18/2022] Open
Abstract
Type I epithelial ovarian cancer (EOC) is primarily resistant to platinum-based chemotherapies and needs novel therapeutics. Given the aberrant Wnt activation in type I EOC and the involvement of Dapper1 Antagonist of Catenin-1 (DACT1) in Wnt signalling, the role of DACT1 in tumourigenesis of type I EOC was evaluated. Firstly, all tested EOC cell lines and primary EOC tissues, especially type I EOC, were observed to have significantly lower DACT1 expression than normal controls. Next, 3AO cells, which arise from a patient with primary mucinous EOC and express low endogenous levels of DACT1, were transfected with a lentivirus carrying full-length DACT1 (3AO-DACT1), grew slower and formed smaller tumours in nude mice compared to 3AO-NC. Furthermore, 3AO-DACT1 had lower levels of key mediators of canonical Wnt signalling, Dvl2 and β-catenin, GSK-3β with phosphorylated Ser9, and the Wnt/β-catenin target genes, with significantly lower nuclear β-catenin levels. Additionally, 3AO-DACT which contained higher levels of lipidated LC3 (LC3-II) and Beclin1, but lower levels of p62/SQSTM1, were more sensitive to cis-platinum. And chloroquine partially rescued its cis-platinum resistance. We identified DACT1 as a negative regulator in type I EOC, protecting against malignant expansion by inhibiting canonical Wnt signalling and cis-platinum resistance by regulating autophagy.
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27
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Zhen Z, Yang K, Ye L, You Z, Chen R, Liu Y, He Y. Suberoylanilide hydroxamic acid sensitizes neuroblastoma to paclitaxel by inhibiting thioredoxin-related protein 14-mediated autophagy. Cancer Sci 2017; 108:1485-1492. [PMID: 28498513 PMCID: PMC5497723 DOI: 10.1111/cas.13279] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 05/01/2017] [Accepted: 05/08/2017] [Indexed: 12/21/2022] Open
Abstract
Paclitaxel is not as effective for neuroblastoma as most of the front‐line chemotherapeutics due to drug resistance. This study explored the regulatory mechanism of paclitaxel‐associated autophagy and potential solutions to paclitaxel resistance in neuroblastoma. The formation of autophagic vesicles was detected by scanning transmission electron microscopy and flow cytometry. The autophagy‐associated proteins were assessed by western blot. Autophagy was induced and the autophagy‐associated proteins LC3‐I, LC3‐II, Beclin 1, and thioredoxin‐related protein 14 (TRP14), were found to be upregulated in neuroblastoma cells that were exposed to paclitaxel. The inhibition of Beclin 1 or TRP14 by siRNA increased the sensitivity of the tumor cells to paclitaxel. In addition, Beclin 1‐mediated autophagy was regulated by TRP14. Furthermore, the TRP14 inhibitor suberoylanilide hydroxamic acid (SAHA) downregulated paclitaxel‐induced autophagy and enhanced the anticancer effects of paclitaxel in normal control cancer cells but not in cells with upregulated Beclin 1 and TRP14 expression. Our findings showed that paclitaxel‐induced autophagy in neuroblastoma cells was regulated by TRP14 and that SAHA could sensitize neuroblastoma cells to paclitaxel by specifically inhibiting TRP14.
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Affiliation(s)
- Zijun Zhen
- State Key Laboratory of Oncology in South China, Guangzhou, China.,Department of Pediatric Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China.,Collaborative Innovation Center of Cancer Medicine, Guangzhou, China
| | - Kaibin Yang
- State Key Laboratory of Oncology in South China, Guangzhou, China.,Sun Yat-sen University Zhongshan School of Medicine, Guangzhou, China
| | - Litong Ye
- State Key Laboratory of Oncology in South China, Guangzhou, China.,Sun Yat-sen University Zhongshan School of Medicine, Guangzhou, China
| | - Zhiyao You
- State Key Laboratory of Oncology in South China, Guangzhou, China.,Sun Yat-sen University Zhongshan School of Medicine, Guangzhou, China
| | - Rirong Chen
- State Key Laboratory of Oncology in South China, Guangzhou, China.,Sun Yat-sen University Zhongshan School of Medicine, Guangzhou, China
| | - Ying Liu
- State Key Laboratory of Oncology in South China, Guangzhou, China.,Sun Yat-sen University Zhongshan School of Medicine, Guangzhou, China
| | - Youjian He
- State Key Laboratory of Oncology in South China, Guangzhou, China.,Collaborative Innovation Center of Cancer Medicine, Guangzhou, China.,Department of Medical Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China
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28
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Kalai Selvi S, Vinoth A, Varadharajan T, Weng CF, Vijaya Padma V. Neferine augments therapeutic efficacy of cisplatin through ROS- mediated non-canonical autophagy in human lung adenocarcinoma (A549 cells). Food Chem Toxicol 2017; 103:28-40. [DOI: 10.1016/j.fct.2017.02.020] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 01/25/2017] [Accepted: 02/14/2017] [Indexed: 12/31/2022]
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29
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Kania E, Pająk B, O'Prey J, Sierra Gonzalez P, Litwiniuk A, Urbańska K, Ryan KM, Orzechowski A. Verapamil treatment induces cytoprotective autophagy by modulating cellular metabolism. FEBS J 2017; 284:1370-1387. [PMID: 28342290 DOI: 10.1111/febs.14064] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 03/08/2017] [Accepted: 03/22/2017] [Indexed: 01/09/2023]
Abstract
Verapamil, an L-type calcium channel blocker, has been used successfully to treat cardiovascular diseases. Interestingly, we have recently shown that treatment of cancer cells with verapamil causes an effect on autophagy. As autophagy is known to modulate chemotherapy responses, this prompted us to explore the impact of verapamil on autophagy and cell viability in greater detail. We report here that verapamil causes an induction of autophagic flux in a number or tumor cells and immortalized normal cells. Moreover, we found that inhibition of autophagy in COLO 205 cells, via treatment with the chloroquine (CQ) or by CRISPR/Cas9-mediated disruption of the autophagy genes Atg7 and Atg5, causes an upregulation of apoptotic markers in response to verapamil. In search of a mechanism for this effect and because autophagy can often mitigate metabolic stress, we examined the impact of verapamil on cellular metabolism. This revealed that in normal prostate cells, verapamil diminishes glucose and glycolytic intermediate levels leading to adenosine 5'-triphosphate (ATP) depletion. In contrast, in COLO 205 cells it enhances aerobic glycolysis and maintains ATP. Importantly, we found that the autophagic response in these cells is related to the activity of l-lactate dehydrogenase A (LDHA, EC 1.1.1.27), as inhibition of LDHA reduces both basal and verapamil-induced autophagy and consequently decreases cell viability. In summary, these findings not only identify a novel mechanism of cytoprotective autophagy induction but they also highlight the potential of using verapamil together with inhibitors of autophagy for the treatment of malignant disease. ENZYMES: l-lactate dehydrogenase (LDHA, EC 1.1.1.27).
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Affiliation(s)
- Elżbieta Kania
- Mossakowski Medical Research Centre, Polish Academy of Science, Electron Microscopy Platform, Warsaw, Poland
| | - Beata Pająk
- Mossakowski Medical Research Centre, Polish Academy of Science, Electron Microscopy Platform, Warsaw, Poland
- Independent Laboratory of Genetics and Molecular Biology, Kaczkowski Military Institute of Hygiene and Epidemiology, Warsaw, Poland
| | - Jim O'Prey
- Cancer Research UK Beatson Institute, Glasgow, UK
| | | | - Anna Litwiniuk
- Department of Neuroendocrinology, Centre of Postgraduate Medical Education, Warsaw, Poland
| | | | - Kevin M Ryan
- Cancer Research UK Beatson Institute, Glasgow, UK
| | - Arkadiusz Orzechowski
- Mossakowski Medical Research Centre, Polish Academy of Science, Electron Microscopy Platform, Warsaw, Poland
- Warsaw University of Life Sciences - SGGW, Poland
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30
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Bu-Zhong-Yi-Qi Decoction, the Water Extract of Chinese Traditional Herbal Medicine, Enhances Cisplatin Cytotoxicity in A549/DDP Cells through Induction of Apoptosis and Autophagy. BIOMED RESEARCH INTERNATIONAL 2017; 2017:3692797. [PMID: 28154825 PMCID: PMC5244006 DOI: 10.1155/2017/3692797] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Accepted: 12/08/2016] [Indexed: 11/17/2022]
Abstract
Cisplatin is one of the most active cytotoxic agents for non-small cell lung cancer (NSCLC) treatment. However, the development of cisplatin resistance is common. Bu-Zhong-Yi-Qi decoction (BZYQD), a Chinese traditional herbal medicine, is widely used for the enhancement of antitumor effect in other medications. In this study, we evaluated the effect and drug-resistance reversal mechanism of BZYQD combined with cisplatin on cisplatin-resistant A549/DDP cells. Our results showed that BZYQD exhibited direct cytotoxic and chemosensitizing effects. Cotreatment with BZYQD and cisplatin induced intrinsic apoptotic pathways which were measured by condensed nuclear chromatin, Annexin V/PI apoptosis assay, and apoptosis related proteins expression. In addition, cotreatment with BZYQD and cisplatin also activated autophagy, as indicated by an increase in LC3 puncta, classical autophagosomes and/or autolysosomes, and an accumulation of LC3-II and ATG7 protein. Finally, cotreatment with BZYQD and cisplatin resulted in the generation of ROS and scavenging ROS by NAC almost completely suppressing cell death. These results suggest that cotreatment with BZYQD and cisplatin might reverse cisplatin resistance by inducing ROS accumulation, which activates apoptosis and autophagy by oxidative stress. The combination of BZYQD and cisplatin may represent a novel approach in treatment for NSCLC and thus offer a new target for chemotherapy.
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31
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Li Q, Zhan M, Chen W, Zhao B, Yang K, Yang J, Yi J, Huang Q, Mohan M, Hou Z, Wang J. Phenylethyl isothiocyanate reverses cisplatin resistance in biliary tract cancer cells via glutathionylation-dependent degradation of Mcl-1. Oncotarget 2016; 7:10271-82. [PMID: 26848531 PMCID: PMC4891119 DOI: 10.18632/oncotarget.7171] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Accepted: 01/21/2016] [Indexed: 02/05/2023] Open
Abstract
Biliary tract cancer (BTC) is a highly malignant cancer. BTC exhibits a low response rate to cisplatin (CDDP) treatment, and therefore, an understanding of the mechanism of CDDP resistance is urgently needed. Here, we show that BTC cells develop CDDP resistance due, in part, to upregulation of myeloid cell leukemia 1 (Mcl-1). Phenylethyl isothiocyanate (PEITC), a natural compound found in watercress, could enhance the efficacy of CDDP by degrading Mcl-1. PEITC-CDDP co-treatment also increased the rate of apoptosis of cancer stem-like side population (SP) cells and inhibited xenograft tumor growth without obvious toxic effects. In vitro, PEITC decreased reduced glutathione (GSH), which resulted in decreased GSH/oxidized glutathione (GSSG) ratio and increased glutathionylation of Mcl-1, leading to rapid proteasomal degradation of Mcl-1. Furthermore, we identified Cys16 and Cys286 as Mcl-1 glutathionylation sites, and mutating them resulted in PEITC-mediated degradation resistant Mcl-1 protein. In conclusion, we demonstrate for the first time that CDDP resistance is partially associated with Mcl-1 in BTC cells and we identify a novel mechanism that PEITC can enhance CDDP-induced apoptosis via glutathionylation-dependent degradation of Mcl-1. Hence, our results provide support that dietary intake of watercress may help reverse CDDP resistance in BTC patients.
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Affiliation(s)
- Qiwei Li
- Department of Biliary-Pancreatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Ming Zhan
- Department of Biliary-Pancreatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Wei Chen
- Department of Biliary-Pancreatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Benpeng Zhao
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory of Tumor Microenvironment and Inflammation, Institutes of Medical Sciences, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Kai Yang
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory of Tumor Microenvironment and Inflammation, Institutes of Medical Sciences, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Jie Yang
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory of Tumor Microenvironment and Inflammation, Institutes of Medical Sciences, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Jing Yi
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory of Tumor Microenvironment and Inflammation, Institutes of Medical Sciences, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Qihong Huang
- The Wistar Institute, University of Pennsylvania and Veterans Affairs Medical Center, Philadelphia, Pennsylvania, USA
| | - Man Mohan
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory of Tumor Microenvironment and Inflammation, Institutes of Medical Sciences, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Zhaoyuan Hou
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory of Tumor Microenvironment and Inflammation, Institutes of Medical Sciences, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Jian Wang
- Department of Biliary-Pancreatic Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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32
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Law BYK, Mok SWF, Chan WK, Xu SW, Wu AG, Yao XJ, Wang JR, Liu L, Wong VKW. Hernandezine, a novel AMPK activator induces autophagic cell death in drug-resistant cancers. Oncotarget 2016; 7:8090-104. [PMID: 26811496 PMCID: PMC4884978 DOI: 10.18632/oncotarget.6980] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2015] [Accepted: 01/01/2016] [Indexed: 12/21/2022] Open
Abstract
Drug resistance hinder most cancer chemotherapies and leads to disease recurrence and poor survival of patients. Resistance of cancer cells towards apoptosis is the major cause of these symptomatic behaviours. Here, we showed that isoquinoline alkaloids, including liensinine, isoliensinine, dauricine, cepharanthine and hernandezine, putatively induce cytotoxicity against a repertoire of cancer cell lines (HeLa, A549, MCF-7, PC3, HepG2, Hep3B and H1299). Proven by the use of apoptosis-resistant cellular models and autophagic assays, such isoquinoline alkaloid-induced cytotoxic effect involves energy- and autophagy-related gene 7 (Atg7)-dependent autophagy that resulted from direct activation of AMP activated protein kinase (AMPK). Hernandezine possess the highest efficacy in provoking such cell death when compared with other examined compounds. We confirmed that isoquinoline alkaloid is structurally varied from the existing direct AMPK activators. In conclusion, isoquinoline alkaloid is a new class of compound that induce autophagic cell death in drug-resistant fibroblasts or cancers by exhibiting its direct activation on AMPK.
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Affiliation(s)
- Betty Yuen Kwan Law
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Simon Wing Fai Mok
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Wai Kit Chan
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Su Wei Xu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - An Guo Wu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Xiao Jun Yao
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Jing Rong Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Liang Liu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Vincent Kam Wai Wong
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
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33
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Cimas FJ, Callejas-Valera JL, Pascual-Serra R, García-Cano J, Garcia-Gil E, De la Cruz-Morcillo MA, Ortega-Muelas M, Serrano-Oviedo L, Gutkind JS, Sánchez-Prieto R. MKP1 mediates chemosensitizer effects of E1a in response to cisplatin in non-small cell lung carcinoma cells. Oncotarget 2016; 6:44095-107. [PMID: 26689986 PMCID: PMC4792544 DOI: 10.18632/oncotarget.6574] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Accepted: 11/25/2015] [Indexed: 12/19/2022] Open
Abstract
The adenoviral gene E1a is known to enhance the antitumor effect of cisplatin, one of the cornerstones of the current cancer chemotherapy. Here we study the molecular basis of E1a mediated sensitivity to cisplatin in an experimental model of Non-small cell lung cancer. Our data show how E1a blocks the induction of autophagy triggered by cisplatin and promotes the apoptotic response in resistant cells. Interestingly, at the molecular level, we present evidences showing how the phosphatase MKP1 is a major determinant of cisplatin sensitivity and its upregulation is strictly required for the induction of chemosensitivity mediated by E1a. Indeed, E1a is almost unable to promote sensitivity in H460, in which the high expression of MKP1 remains unaffected by E1a. However, in resistant cell as H1299, H23 or H661, which display low levels of MKP1, E1a expression promotes a dramatic increase in the amount of MKP1 correlating with cisplatin sensitivity. Furthermore, effective knock down of MKP1 in H1299 E1a expressing cells restores resistance to a similar extent than parental cells. In summary, the present work reinforce the critical role of MKP1 in the cellular response to cisplatin highlighting the importance of this phosphatase in future gene therapy approach based on E1a gene.
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Affiliation(s)
- Francisco J Cimas
- Unidad de Medicina Molecular, Laboratorio de Oncología, Centro Regional de Investigaciones Biomédicas, Universidad de Castilla-La Mancha, Albacete, Spain.,Unidad de Biomedicina UCLM-CSIC, Albacete, Spain
| | | | - Raquel Pascual-Serra
- Unidad de Medicina Molecular, Laboratorio de Oncología, Centro Regional de Investigaciones Biomédicas, Universidad de Castilla-La Mancha, Albacete, Spain.,Unidad de Biomedicina UCLM-CSIC, Albacete, Spain
| | - Jesus García-Cano
- Unidad de Medicina Molecular, Laboratorio de Oncología, Centro Regional de Investigaciones Biomédicas, Universidad de Castilla-La Mancha, Albacete, Spain.,Unidad de Biomedicina UCLM-CSIC, Albacete, Spain
| | - Elena Garcia-Gil
- Unidad de Medicina Molecular, Laboratorio de Oncología, Centro Regional de Investigaciones Biomédicas, Universidad de Castilla-La Mancha, Albacete, Spain.,Unidad de Biomedicina UCLM-CSIC, Albacete, Spain
| | - Miguel A De la Cruz-Morcillo
- Unidad de Medicina Molecular, Laboratorio de Oncología, Centro Regional de Investigaciones Biomédicas, Universidad de Castilla-La Mancha, Albacete, Spain.,Unidad de Biomedicina UCLM-CSIC, Albacete, Spain
| | - Marta Ortega-Muelas
- Unidad de Medicina Molecular, Laboratorio de Oncología, Centro Regional de Investigaciones Biomédicas, Universidad de Castilla-La Mancha, Albacete, Spain.,Unidad de Biomedicina UCLM-CSIC, Albacete, Spain
| | - Leticia Serrano-Oviedo
- Unidad de Medicina Molecular, Laboratorio de Oncología, Centro Regional de Investigaciones Biomédicas, Universidad de Castilla-La Mancha, Albacete, Spain.,Unidad de Biomedicina UCLM-CSIC, Albacete, Spain
| | | | - Ricardo Sánchez-Prieto
- Unidad de Medicina Molecular, Laboratorio de Oncología, Centro Regional de Investigaciones Biomédicas, Universidad de Castilla-La Mancha, Albacete, Spain.,Unidad de Biomedicina UCLM-CSIC, Albacete, Spain
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Mi S, Xiang G, Yuwen D, Gao J, Guo W, Wu X, Wu X, Sun Y, Su Y, Shen Y, Xu Q. Inhibition of autophagy by andrographolide resensitizes cisplatin-resistant non-small cell lung carcinoma cells via activation of the Akt/mTOR pathway. Toxicol Appl Pharmacol 2016; 310:78-86. [DOI: 10.1016/j.taap.2016.09.009] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Revised: 09/12/2016] [Accepted: 09/13/2016] [Indexed: 01/23/2023]
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Fei HR, Tian H, Zhou XL, Yang MF, Sun BL, Yang XY, Jiao P, Wang FZ. Inhibition of autophagy enhances effects of PF-04691502 on apoptosis and DNA damage of lung cancer cells. Int J Biochem Cell Biol 2016; 78:52-62. [DOI: 10.1016/j.biocel.2016.06.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Revised: 06/21/2016] [Accepted: 06/30/2016] [Indexed: 10/21/2022]
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36
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García-Cano J, Roche O, Cimas FJ, Pascual-Serra R, Ortega-Muelas M, Fernández-Aroca DM, Sánchez-Prieto R. p38MAPK and Chemotherapy: We Always Need to Hear Both Sides of the Story. Front Cell Dev Biol 2016; 4:69. [PMID: 27446920 PMCID: PMC4928511 DOI: 10.3389/fcell.2016.00069] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Accepted: 06/13/2016] [Indexed: 12/14/2022] Open
Abstract
The p38MAPK signaling pathway was initially described as a stress response mechanism. In fact, during previous decades, it was considered a pathway with little interest in oncology especially in comparison with other MAPKs such as ERK1/2, known to be target of oncogenes like Ras. However, its involvement in apoptotic cell death phenomena makes this signaling pathway more attractive for many cancer research laboratories. This apoptotic role allows to establish a link between p38MAPK and regular chemotherapeutic agents such as Cisplatin or base analogs (Cytarabine, Gemcitabine or 5-Fluorouracil) which are currently used in hospitals across the world. In fact, and more recently, p38MAPK has also been connected with targeted therapies like tyrosine kinase inhibitors (vg. Imatinib, Sorafenib) and, to a lesser extent, with monoclonal antibodies. In addition, the oncogenic or tumor suppressor potential of this signaling pathway has aroused the interest of the scientific community in evaluating p38MAPK as a novel target for cancer therapy. In this review, we will summarize the role of p38MAPK in chemotherapy as well as the potential that p38MAPK inhibition can bring to cancer therapy. All the evidences suggest that p38MAPK could be a double-edged sword and that the search for the most appropriate candidate patients, depending on their pathology and treatment, will lead to a more rational use of this new therapeutic tool.
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Affiliation(s)
- Jesús García-Cano
- Unidad de Medicina Molecular, Laboratorio de Oncología, Centro Regional de Investigaciones Biomédicas, Unidad de Biomedicina UCLM-CSIC, Universidad de Castilla-La Mancha/PCTCLM Albacete, Spain
| | - Olga Roche
- Unidad de Medicina Molecular, Laboratorio de Oncología, Centro Regional de Investigaciones Biomédicas, Unidad de Biomedicina UCLM-CSIC, Universidad de Castilla-La Mancha/PCTCLM Albacete, Spain
| | - Francisco J Cimas
- Unidad de Medicina Molecular, Laboratorio de Oncología, Centro Regional de Investigaciones Biomédicas, Unidad de Biomedicina UCLM-CSIC, Universidad de Castilla-La Mancha/PCTCLM Albacete, Spain
| | - Raquel Pascual-Serra
- Unidad de Medicina Molecular, Laboratorio de Oncología, Centro Regional de Investigaciones Biomédicas, Unidad de Biomedicina UCLM-CSIC, Universidad de Castilla-La Mancha/PCTCLM Albacete, Spain
| | - Marta Ortega-Muelas
- Unidad de Medicina Molecular, Laboratorio de Oncología, Centro Regional de Investigaciones Biomédicas, Unidad de Biomedicina UCLM-CSIC, Universidad de Castilla-La Mancha/PCTCLM Albacete, Spain
| | - Diego M Fernández-Aroca
- Unidad de Medicina Molecular, Laboratorio de Oncología, Centro Regional de Investigaciones Biomédicas, Unidad de Biomedicina UCLM-CSIC, Universidad de Castilla-La Mancha/PCTCLM Albacete, Spain
| | - Ricardo Sánchez-Prieto
- Unidad de Medicina Molecular, Laboratorio de Oncología, Centro Regional de Investigaciones Biomédicas, Unidad de Biomedicina UCLM-CSIC, Universidad de Castilla-La Mancha/PCTCLM Albacete, Spain
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Saleh T, Cuttino L, Gewirtz DA. Autophagy is not uniformly cytoprotective: a personalized medicine approach for autophagy inhibition as a therapeutic strategy in non-small cell lung cancer. Biochim Biophys Acta Gen Subj 2016; 1860:2130-6. [PMID: 27316314 DOI: 10.1016/j.bbagen.2016.06.012] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 06/07/2016] [Accepted: 06/12/2016] [Indexed: 02/06/2023]
Abstract
BACKGROUND Lung cancer is the leading cause of cancer-related death worldwide. In addition to surgical resection, which is considered first-line treatment at early stages of the disease, chemotherapy and radiation are widely used when the disease is advanced. Of multiple responses that may occur in the tumor cells in response to cancer therapy, the functional importance of autophagy remains equivocal; this is likely to restrict current efforts to sensitize this malignancy to chemotherapy and/or radiation by pharmacological interference with the autophagic response. SCOPE OF REVIEW In this review, we attempt to summarize the current state of knowledge based on studies that evaluated the function of autophagy in non-small cell lung cancer (NSCLC) cells in response to radiation and the most commonly used chemotherapeutic agents. MAJOR CONCLUSIONS In addition to the expected prosurvival function of autophagy, where autophagy inhibition enhances the response to therapy, autophagy appears also to have a "non-cytoprotective" function, where autophagy blockade does not affect cell viability, clonogenicity or tumor volume in response to therapy. In other cases, autophagy may actually mediate drug action via expression of its cytotoxic function. GENERAL SIGNIFICANCE These observations emphasize the complexity of autophagy function when examined in different tumor cell lines and in response to different chemotherapeutic agents. A more in-depth understanding of the conditions that promote the unique functions of autophagy is required in order to translate preclinical findings of autophagy inhibition to the clinic for the purpose of improving patient response to chemotherapy and radiation.
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Affiliation(s)
- Tareq Saleh
- Department of Pharmacology and Toxicology, Massey Cancer Center, Virginia Commonwealth University, 401 College St., Richmond, VA 23298, United States
| | - Laurie Cuttino
- Department of Radiation Oncology, Virginia Commonwealth University, Henrico Doctor's Hospital, 1602 Skipwith Rd, Richmond, VA 23229, United States
| | - David A Gewirtz
- Department of Pharmacology and Toxicology, Massey Cancer Center, Virginia Commonwealth University, 401 College St., Richmond, VA 23298, United States; Department of Medicine, Massey Cancer Center, Virginia Commonwealth University, 401 College St., Richmond, VA 23298, United States.
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38
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Tan X, Lambert PF, Rapraeger AC, Anderson RA. Stress-Induced EGFR Trafficking: Mechanisms, Functions, and Therapeutic Implications. Trends Cell Biol 2016; 26:352-366. [PMID: 26827089 PMCID: PMC5120732 DOI: 10.1016/j.tcb.2015.12.006] [Citation(s) in RCA: 134] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Revised: 12/27/2015] [Accepted: 12/31/2015] [Indexed: 12/13/2022]
Abstract
Epidermal growth factor receptor (EGFR) has fundamental roles in normal physiology and cancer, making it a rational target for cancer therapy. Surprisingly, however, inhibitors that target canonical, ligand-stimulated EGFR signaling have proven to be largely ineffective in treating many EGFR-dependent cancers. Recent evidence indicates that both intrinsic and therapy-induced cellular stress triggers robust, noncanonical pathways of ligand-independent EGFR trafficking and signaling, which provides cancer cells with a survival advantage and resistance to therapeutics. Here, we review the mechanistic regulation of noncanonical EGFR trafficking and signaling, and the pathological and therapeutic stresses that activate it. We also discuss the implications of this pathway in clinical treatment of EGFR-overexpressing cancers.
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Affiliation(s)
- Xiaojun Tan
- Program in Molecular and Cellular Pharmacology, University of Wisconsin-Madison School of Medicine and Public Health, 1300 University Avenue, Madison, WI 53706, USA
| | - Paul F Lambert
- Department of Oncology, University of Wisconsin-Madison School of Medicine and Public Health, 1300 University Avenue, Madison, WI 53706, USA; McArdle Laboratory for Cancer Research, University of Wisconsin-Madison School of Medicine and Public Health, 1300 University Avenue, Madison, WI 53706, USA
| | - Alan C Rapraeger
- Department of Human Oncology, University of Wisconsin-Madison School of Medicine and Public Health, 1300 University Avenue, Madison, WI 53706, USA
| | - Richard A Anderson
- Program in Molecular and Cellular Pharmacology, University of Wisconsin-Madison School of Medicine and Public Health, 1300 University Avenue, Madison, WI 53706, USA.
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Cimas FJ, Callejas-Valera JCVL, Sanchez-Prieto R. MKP1: Jekyll and Hyde for E1A. Aging (Albany NY) 2016; 8:214-215. [PMID: 26977801 PMCID: PMC4789577 DOI: 10.18632/aging.100918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Accepted: 02/28/2016] [Indexed: 06/05/2023]
Affiliation(s)
- Francisco J Cimas
- Unidad de Medicina Molecular, Laboratorio de Oncología, Centro Regional de Investigaciones Biomédicas, Universidad de Castilla-La Mancha, 02006, Albacete, Spain
| | | | - Ricardo Sanchez-Prieto
- Unidad de Medicina Molecular, Laboratorio de Oncología, Centro Regional de Investigaciones Biomédicas, Universidad de Castilla-La Mancha, 02006, Albacete, Spain
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40
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Zeng LP, Hu ZM, Li K, Xia K. miR-222 attenuates cisplatin-induced cell death by targeting the PPP2R2A/Akt/mTOR Axis in bladder cancer cells. J Cell Mol Med 2016; 20:559-67. [PMID: 26800397 PMCID: PMC4759461 DOI: 10.1111/jcmm.12760] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Accepted: 11/13/2015] [Indexed: 12/15/2022] Open
Abstract
Increased miR-222 levels are associated with a poor prognosis in patients with bladder cancer. However, the role of miR-222 remains unclear. In the present study, we found that miR-222 enhanced the proliferation of both the T24 and the 5637 bladder cancer cell lines. Overexpression of miR-222 attenuated cisplatin-induced cell death in bladder cancer cells. miR-222 activated the Akt/mTOR pathway and inhibited cisplatin-induced autophagy in bladder cancer cells by directly targeting protein phosphatase 2A subunit B (PPP2R2A). Blocking the activation of Akt with LY294002 or mTOR with rapamycin significantly prevented miR-222-induced proliferation and restored the sensitivity of bladder cancer cells to cisplatin. These findings demonstrate that miR-222 modulates the PPP2R2A/Akt/mTOR axis and thus plays a critical role in regulating proliferation and chemotherapeutic drug resistance. Therefore, miR-222 may be a novel therapeutic target for bladder cancer.
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Affiliation(s)
- Li-Ping Zeng
- The State Key Laboratory of Medical Genetics, Central South University, Changsha, Hunan, China
| | - Zheng-Mao Hu
- The State Key Laboratory of Medical Genetics, Central South University, Changsha, Hunan, China
| | - Kai Li
- The Clinical Laboratory of No.261 Hospital of the People's Liberation Army, Beijing, China
| | - Kun Xia
- The State Key Laboratory of Medical Genetics, Central South University, Changsha, Hunan, China
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Zajac J, Kostrhunova H, Novohradsky V, Vrana O, Raveendran R, Gibson D, Kasparkova J, Brabec V. Potentiation of mitochondrial dysfunction in tumor cells by conjugates of metabolic modulator dichloroacetate with a Pt(IV) derivative of oxaliplatin. J Inorg Biochem 2015; 156:89-97. [PMID: 26780576 DOI: 10.1016/j.jinorgbio.2015.12.003] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Revised: 10/20/2015] [Accepted: 12/08/2015] [Indexed: 02/07/2023]
Abstract
The molecular and cellular mechanisms of enhanced toxic effects in tumor cells of the Pt(IV) derivatives of antitumor oxaliplatin containing axial dichloroacetate (DCA) ligands were investigated. DCA ligands were chosen because DCA has shown great potential as an apoptosis sensitizer and anticancer agent reverting the Wartburg effect. In addition, DCA reverses mitochondrial changes in a wide range of cancers, promoting tumor cell apoptosis in a mitochondrial-dependent pathway. We demonstrate that (i) the transformation of oxaliplatin to its Pt(IV) derivatives containing axial DCA ligands markedly enhances toxicity in cancer cells and helps overcome inherent and acquired resistance to cisplatin and oxaliplatin; (ii) a significant fraction of the intact molecules of DCA conjugates with Pt(IV) derivative of oxaliplatin accumulates in cancer cells where it releases free DCA; (iii) mechanism of biological action of the Pt(IV) derivatives of oxaliplatin containing DCA ligands is connected with the effects of DCA released in cancer cells from the Pt(IV) prodrugs on mitochondria and metabolism of glucose; (iv) treatments with the Pt(IV) derivatives of oxaliplatin containing DCA ligands activate an autophagic response in human colorectal cancer cells; (v) the toxic effects in cancer cells of the Pt(IV) derivatives of oxaliplatin containing DCA ligands can be potentiated if cells are treated with these prodrugs in combination with 5-fluorouracil. These properties of the Pt(IV) derivatives of oxaliplatin containing DCA ligands provide opportunities for further development of new platinum-based agents with the capability of killing cancer cells resistant to conventional antitumor platinum drugs used in the clinic.
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Affiliation(s)
- Juraj Zajac
- Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Kralovopolska 135, CZ-61265 Brno, Czech Republic; Department of Biophysics, Faculty of Science, Palacky University, 17. listopadu 12, CZ-77146 Olomouc, Czech Republic
| | - Hana Kostrhunova
- Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Kralovopolska 135, CZ-61265 Brno, Czech Republic
| | - Vojtech Novohradsky
- Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Kralovopolska 135, CZ-61265 Brno, Czech Republic
| | - Oldrich Vrana
- Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Kralovopolska 135, CZ-61265 Brno, Czech Republic
| | - Raji Raveendran
- Institute for Drug Research, School of Pharmacy, The Hebrew University, Jerusalem 91120, Israel
| | - Dan Gibson
- Institute for Drug Research, School of Pharmacy, The Hebrew University, Jerusalem 91120, Israel
| | - Jana Kasparkova
- Department of Biophysics, Faculty of Science, Palacky University, 17. listopadu 12, CZ-77146 Olomouc, Czech Republic
| | - Viktor Brabec
- Institute of Biophysics, Academy of Sciences of the Czech Republic, v.v.i., Kralovopolska 135, CZ-61265 Brno, Czech Republic.
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