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Kunachowicz D, Król-Kulikowska M, Raczycka W, Sleziak J, Błażejewska M, Kulbacka J. Heat Shock Proteins, a Double-Edged Sword: Significance in Cancer Progression, Chemotherapy Resistance and Novel Therapeutic Perspectives. Cancers (Basel) 2024; 16:1500. [PMID: 38672583 PMCID: PMC11048091 DOI: 10.3390/cancers16081500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 04/10/2024] [Accepted: 04/12/2024] [Indexed: 04/28/2024] Open
Abstract
Heat shock proteins (Hsps) are involved in one of the adaptive mechanisms protecting cells against environmental and metabolic stress. Moreover, the large role of these proteins in the carcinogenesis process, as well as in chemoresistance, was noticed. This review aims to draw attention to the possibilities of using Hsps in developing new cancer therapy methods, as well as to indicate directions for future research on this topic. In order to discuss this matter, a thorough review of the latest scientific literature was carried out, taking into account the importance of selected proteins from the Hsp family, including Hsp27, Hsp40, Hsp60, Hsp70, Hsp90 and Hsp110. One of the more characteristic features of all Hsps is that they play a multifaceted role in cancer progression, which makes them an obvious target for modern anticancer therapy. Some researchers emphasize the importance of directly inhibiting the action of these proteins. In turn, others point to their possible use in the design of cancer vaccines, which would work by inducing an immune response in various types of cancer. Due to these possibilities, it is believed that the use of Hsps may contribute to the progress of oncoimmunology, and thus help in the development of modern anticancer therapies, which would be characterized by higher effectiveness and lower toxicity to the patients.
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Affiliation(s)
- Dominika Kunachowicz
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, Wroclaw Medical University, Borowska 211A, 50-556 Wroclaw, Poland; (D.K.); (M.K.-K.)
| | - Magdalena Król-Kulikowska
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, Wroclaw Medical University, Borowska 211A, 50-556 Wroclaw, Poland; (D.K.); (M.K.-K.)
| | - Wiktoria Raczycka
- Faculty of Medicine, Wroclaw Medical University, Pasteura 1, 50-367 Wroclaw, Poland; (W.R.); (J.S.); (M.B.)
| | - Jakub Sleziak
- Faculty of Medicine, Wroclaw Medical University, Pasteura 1, 50-367 Wroclaw, Poland; (W.R.); (J.S.); (M.B.)
| | - Marta Błażejewska
- Faculty of Medicine, Wroclaw Medical University, Pasteura 1, 50-367 Wroclaw, Poland; (W.R.); (J.S.); (M.B.)
| | - Julita Kulbacka
- Department of Molecular and Cellular Biology, Faculty of Pharmacy, Wroclaw Medical University, Borowska 211A, 50-556 Wroclaw, Poland
- Department of Immunology and Bioelectrochemistry, State Research Institute Centre for Innovative Medicine Santariškių g. 5, LT-08406 Vilnius, Lithuania
- DIVE IN AI, 53-307 Wroclaw, Poland
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Xu L, Xiao S, Chai Z, Li T, Joon Lee J, Su G, Zhao Y. Study of novel ginsenoside metabolites targeting HSP70 as anti-prostate cancer drugs. Bioorg Chem 2024; 144:107131. [PMID: 38271824 DOI: 10.1016/j.bioorg.2024.107131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 12/30/2023] [Accepted: 01/11/2024] [Indexed: 01/27/2024]
Abstract
Ginsenoside 20 (R)-25-methoxy-dammarane-3 β, twelve β, 20 triol (AD-1) is a promising new drug for the treatment of prostate cancer, but its bioavailability is low. This study investigated the effects of the main metabolites PD and M6 of AD-1 on prostate cancer cell PC3. The in vitro experimental results showed that the IC50 values of PC3 cells treated with PD and M6 were 65.61 and 11.72, respectively. Both PD and M6 inhibited the migration of PC3 cells, and the cell cycle was blocked in the G1 phase. The apoptosis rates of cells following M6 treatment at concentrations of 7.5, 15, and 30 μM were 13.4 %, 17.5 %, and 41.4 %, respectively, which stimulated the expression of apoptosis protein and significantly increased intracellular ROS levels. In xenograft models, PD and M6 have been reported to significantly inhibit tumor growth. We used a genome-wide mRNA expression profile to study the effects of PD and M6 on gene expression in PC3 cancer cells. PD and M6 induced downregulation of HSP70 subtypes HSPA1A and HSPA1B. RT-PCR confirmed that the significant down-regulation of HSP70 subtype expressions was consistent with the results of Transcriptome analysis. Moreover, M6 significantly downregulated the expression of AR, which was further proved by Western blot analysis. In summary, our research findings provide a scientific basis for interpreting the significant activity of AD-1 in prostate cancer, and for the research and development of PD and M6 as novel HSP70 inhibitors.
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Affiliation(s)
- Lei Xu
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanbian University, Yanji 133002, China; Shanxi University of Chinese Medicine, Jinzhong 030619, China
| | - Shengnan Xiao
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanbian University, Yanji 133002, China; Shanxi University of Chinese Medicine, Jinzhong 030619, China
| | - Zhi Chai
- Shanxi University of Chinese Medicine, Jinzhong 030619, China
| | - Tao Li
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanbian University, Yanji 133002, China
| | - Jung Joon Lee
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanbian University, Yanji 133002, China
| | - Guangyue Su
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Yuqing Zhao
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanbian University, Yanji 133002, China.
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Hazra J, Vijayakumar A, Mahapatra NR. Emerging role of heat shock proteins in cardiovascular diseases. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2023; 134:271-306. [PMID: 36858739 DOI: 10.1016/bs.apcsb.2022.10.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Heat Shock Proteins (HSPs) are evolutionarily conserved proteins from prokaryotes to eukaryotes. They are ubiquitous proteins involved in key physiological and cellular pathways (viz. inflammation, immunity and apoptosis). Indeed, the survivability of the cells under various stressful conditions depends on appropriate levels of HSP expression. There is a growing line of evidence for the role of HSPs in regulating cardiovascular diseases (CVDs) (viz. hypertension, atherosclerosis, atrial fibrillation, cardiomyopathy and heart failure). Furthermore, studies indicate that a higher concentration of circulatory HSP antibodies correlate to CVDs; some are even potential markers for CVDs. The multifaceted roles of HSPs in regulating cellular signaling necessitate unraveling their links to pathophysiology of CVDs. This review aims to consolidate our understanding of transcriptional (via multiple transcription factors including HSF-1, NF-κB, CREB and STAT3) and post-transcriptional (via microRNAs including miR-1, miR-21 and miR-24) regulation of HSPs. The cytoprotective nature of HSPs catapults them to the limelight as modulators of cell survival. Yet another attractive prospect is the development of new therapeutic strategies against cardiovascular diseases (from hypertension to heart failure) by targeting the regulation of HSPs. Moreover, this review provides insights into how genetic variation of HSPs can contribute to the manifestation of CVDs. It would also offer a bird's eye view of the evolving role of different HSPs in the modulation and manifestation of cardiovascular disease.
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Affiliation(s)
- Joyita Hazra
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, India
| | - Anupama Vijayakumar
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, India
| | - Nitish R Mahapatra
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai, India.
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Parma B, Wurdak H, Ceppi P. Harnessing mitochondrial metabolism and drug resistance in non-small cell lung cancer and beyond by blocking heat-shock proteins. Drug Resist Updat 2022; 65:100888. [DOI: 10.1016/j.drup.2022.100888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 10/10/2022] [Accepted: 10/25/2022] [Indexed: 11/30/2022]
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Naidoo DB, Phulukdaree A, Krishnan A, Chuturgoon AA, Sewram V. Centella asiatica Modulates Nrf-2 Antioxidant Mechanisms and Enhances Reactive Oxygen Species-Mediated Apoptotic Cell Death in Leukemic (THP-1) Cells. J Med Food 2022; 25:760-769. [PMID: 35675643 DOI: 10.1089/jmf.2021.0173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Centella asiatica is commonly used in traditional medicine owing to its many therapeutic properties including but not limited to antioxidant and antitumor potential. This study examined the antioxidant and antiproliferative effects of its crude (C) and fractionated (C3) ethanolic leaf extracts in THP-1 cells. In THP-1 cells, C and C3 cytotoxicity was evaluated (WST-1 viability assay; 24 h; [0.2-3 mg/mL]) and half maximal inhibitory concentration was obtained. Malondialdehyde (MDA; spectrophotometry), mitochondrial depolarization (Δψm), intracellular reactive oxygen species (IROS; flow cytometry), glutathione (GSH), oxidized GSH (GSSG) concentrations, adenosine triphosphate (ATP) levels, caspase activities (luminometry) and DNA fragmentation (single cell gel electrophoresis assay) were evaluated. Protein expression and gene expression was quantified by Western blotting and quantitative polymerase chain reaction, respectively. THP-1 cell viability was dose-dependently reduced by C and C3. MDA, IROS, GSH, and Δψm were increased and ATP was decreased by C and C3 (P < .01). Antioxidant gene expression, Nrf-2 protein expression, and GSSG levels (P < .01) were increased by C, but were decreased by C3. C and C3 elevated caspase activity and DNA damage (P < .0001), whereas they decreased glutathione peroxidase and Bcl-2 protein expressions (P < .003). c-PARP protein expression and c-myc gene expression was decreased by C, whereas they were increased by C3 (P < .002). C3 reduced OGG-1 gene expression (P < .0003). Antioxidant responses were increased by C, whereas they were decreased by C3. Both C and C3 exerted antiproliferative effects in THP-1 cells by enhancing apoptosis. Of note, C3 more effectively induced apoptosis.
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Affiliation(s)
- Dhaneshree Bestinee Naidoo
- Discipline of Medical Biochemistry and Chemical Pathology, Faculty of Health Sciences, Howard College, University of Kwa-Zulu Natal, Durban, South Africa
| | - Alisa Phulukdaree
- Discipline of Medical Biochemistry and Chemical Pathology, Faculty of Health Sciences, Howard College, University of Kwa-Zulu Natal, Durban, South Africa
| | - Anand Krishnan
- Discipline of Medical Biochemistry and Chemical Pathology, Faculty of Health Sciences, Howard College, University of Kwa-Zulu Natal, Durban, South Africa
| | - Anil Amichund Chuturgoon
- Discipline of Medical Biochemistry and Chemical Pathology, Faculty of Health Sciences, Howard College, University of Kwa-Zulu Natal, Durban, South Africa
| | - Vikash Sewram
- African Cancer Institute, Department of Global Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
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Antioxidant Activity and Oxidative Stress-Oriented Apoptosis Pathway in Saccharides Supplemented Cryopreserved Sperm of Pacific Abalone, Haliotis discus hannai. Antioxidants (Basel) 2022; 11:antiox11071303. [PMID: 35883793 PMCID: PMC9311510 DOI: 10.3390/antiox11071303] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 06/24/2022] [Accepted: 06/27/2022] [Indexed: 02/06/2023] Open
Abstract
The Pacific abalone Haliotis discus hannai is a highly commercialized seafood in Southeast Asia. The aim of the present study was to determine the antioxidant activity and oxidative stress-oriented apoptosis pathway in saccharides supplemented cryopreserved sperm of Pacific abalone. Cryopreserved sperm showed impaired antioxidant defenses due to the reduced mRNA abundance of antioxidant genes (CAT, Cu/Zn-SOD, Mn-SOD, GPx, GR, and BCL-2), apoptosis inhibitor (HSP70, and HSP90) gene, and enzymatic antioxidant activity compared to fresh sperm. Such impaired antioxidant defenses caused an increase in the mRNA expression of apoptosis genes (Bax, and Caspase-3), finally leading to apoptosis. The impaired antioxidant defense also increased O2•− production and lipid peroxidation (MDA) levels, which further accelerated apoptosis. Considering all the experimental findings, an apoptosis pathway of cryopreserved sperm has been adopted for the first time. Specifically, sperm cryopreserved using 3% sucrose combined with 8% dimethyl sulfoxide (DMSO) showed improved mRNA stability, enzymatic activity, and DNA integrity with reduced O2•− production and MDA levels compared to sperm cryopreserved with the other types of examined cryoprotectants (8% ethylene glycol + 1% glucose, 6% propylene glycol + 2% glucose, 2% glycerol + 3% glucose, and 2% methanol + 4% trehalose). The present study suggests that 3% sucrose combined with 8% DMSO is suitable to cryopreserve the sperm of this valuable species for molecular conservation.
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Zhou X, Ji Q, Li Q, Wang P, Hu G, Xiao F, Ye M, Lin L, Luo M, Guo Y, Wu W, Huang K, Guo H. HSPA6 is Correlated With the Malignant Progression and Immune Microenvironment of Gliomas. Front Cell Dev Biol 2022; 10:833938. [PMID: 35281087 PMCID: PMC8904718 DOI: 10.3389/fcell.2022.833938] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Accepted: 02/09/2022] [Indexed: 01/29/2023] Open
Abstract
Gliomas are primary intracranial space lesions with a high mortality rate. Current treatments for glioma are very limited. Recently, immunotargeted therapy of the glioma microenvironment has been developed. Members of the 70 kDa heat shock protein (HSP70) family are involved in the development of many tumors and immunity. HSPA6 protein belongs to the HSP70 family; However, the biological function of this protein in gliomas has yet to be evaluated. In the present study, a range of analyses, involving protein networks, survival, clinical correlation, and function, revealed that the expression of HSPA6 was negatively correlated with clinical prognosis and closely associated with immunity, invasion, and angiogenesis. Quantitative protein analysis confirmed that HSPA6 was expressed at high levels in patients with glioblastoma. Vitro experiments further verified that HSPA6 enhanced the malignant progression of glioma cells by promoting proliferation, invasion and anti-apoptosis. We also found that HSPA6 was closely correlated with genomic variations and tumor microenvironment. Collectively, we demonstrated that HSPA6 may represent a new therapeutic target to improve the prognosis of patients with gliomas.
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Affiliation(s)
- Xiang Zhou
- Departments of Neurosurgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
- Departments of Neurosurgery, The Fifth Affiliated Hospital of Nanchang University, Fuzhou, China
| | - Qiankun Ji
- Departments of Neurosurgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Qin Li
- Departments of General Practice, The Fifth Affiliated Hospital of Nanchang University, Fuzhou, China
| | - Peng Wang
- Departments of Neurosurgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Guowen Hu
- Departments of Neurosurgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Feng Xiao
- Departments of Neurosurgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Minhua Ye
- Departments of Neurosurgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Li Lin
- Departments of Neurosurgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Min Luo
- Departments of Neurosurgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yun Guo
- Departments of Neurosurgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Weijun Wu
- Departments of Neurosurgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Kai Huang
- Departments of Neurosurgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
- Institute of Neuroscience, Nanchang University, Nanchang, China
- *Correspondence: Hua Guo, ; Kai Huang,
| | - Hua Guo
- Departments of Neurosurgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
- Jiangxi Key Laboratory of Neurological Tumors and Cerebrovascular Diseases, Nanchang, China
- *Correspondence: Hua Guo, ; Kai Huang,
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Exhaled breath condensates from healthy children induce cell death of in vitro cultured cells by activation of apoptosis. Postepy Dermatol Alergol 2021; 38:85-90. [PMID: 34408572 PMCID: PMC8362770 DOI: 10.5114/ada.2019.87087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Accepted: 07/15/2019] [Indexed: 11/20/2022] Open
Abstract
Introduction Exhaled breath condensate (EBC) is a liquefied air, containing a mixture of non-volatile compounds, reflecting pathophysiological status of the bronchopulmonary system. Therefore, EBC analysis may be useful in diagnostics and monitoring of various respiratory diseases. In previous studies it was found that EBC from asthmatic children contained several regulators of angiogenesis. In vitro experiments with EBCs from children with asthma revealed their weak influence on proliferation of various cells. Surprisingly, EBCs from healthy children led to apoptosis of all tested cells. Aim To assess the expression of selected apoptosis-related proteins in human and murine cells exposed to EBC from healthy children. Material and methods EBCs from healthy children were added to cultures of murine endothelial cells (C166) or human lung fibroblasts (HLF) to induce their apoptosis. For proteome analysis the apoptosis pathway-specific protein microarrays were used. Results The homogenates from EBC-treated C166 cells contained low amounts of Hsp27, which correlated with their fast death. Contrary to C166, the lysates from EBC-treated fibroblasts displayed increased amounts of Hsp27, which correlated with delayed HLF response to the induction of apoptosis. Except for increased caspase-3 in EBC-treated HLF, none of the other apoptosis regulators revealed any significant changes in that analysis. Conclusions The screening of apoptosis pathways with microarray technology allowed identification of two molecules, Hsp27 and caspase-3, involved in cellular response to EBC. However, the factor responsible for induction of the cytotoxic effect of EBC from healthy children still remains unknown.
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Ding Y, Labitzky V, Legler K, Qi M, Schumacher U, Schmalfeldt B, Stürken C, Oliveira-Ferrer L. Molecular characteristics and tumorigenicity of ascites-derived tumor cells: mitochondrial oxidative phosphorylation as a novel therapy target in ovarian cancer. Mol Oncol 2021; 15:3578-3595. [PMID: 34060699 PMCID: PMC8637562 DOI: 10.1002/1878-0261.13028] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 04/16/2021] [Accepted: 05/28/2021] [Indexed: 12/13/2022] Open
Abstract
Ovarian cancer disseminates primarily intraperitoneally. Detached tumor cell aggregates (spheroids) from the primary tumor are regarded as ‘metastatic units’ that exhibit a low sensitivity to classical chemotherapy, probably due to their unique molecular characteristics. We have analyzed the cellular composition of ascites from OvCa patients, using flow cytometry, and studied their behavior in vitro and in vivo. We conclude that ascites‐derived cultured cells from OvCa patients give rise to two subpopulations: adherent cells and non‐adherent cells. Here, we found that the AD population includes mainly CD90+ cells with highly proliferative rates in vitro but no tumorigenic potential in vivo, whereas the NAD population contains principally tumor cell spheroids (EpCAM+/CD24+) with low proliferative potential in vitro. Enriched tumor cell spheroids from the ascites of high‐grade serous OvCA patients, obtained using cell strainers, were highly tumorigenic in vivo and their metastatic spread pattern precisely resembled the tumor dissemination pattern found in the corresponding patients. Comparative transcriptome analyses from ascites‐derived tumor cell spheroids (n = 10) versus tumor samples from different metastatic sites (n = 30) revealed upregulation of genes involved in chemoresistance (TGM1, HSPAs, MT1s), cell adhesion and cell‐barrier integrity (PKP3, CLDNs, PPL), and the oxidative phosphorylation process. Mitochondrial markers (mass and membrane potential) showed a reduced mitochondrial function in tumoroids from tumor tissue compared with ascites‐derived tumor spheroids in flow cytometry analysis. Interestingly, response to OXPHOS inhibition by metformin and IACS010759 in tumor spheroids correlated with the extent of mitochondrial membrane potential measured by fluorescence‐activated cell sorting. Our data contribute to a better understanding of the biology of ovarian cancer spheroids and identify the OXPHOS pathway as new potential treatment option in advanced ovarian cancer.
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Affiliation(s)
- Yi Ding
- Department of Gynecology, University Medical Center Hamburg-Eppendorf, Germany
| | - Vera Labitzky
- Institute of Anatomy and Experimental Morphology, University Medical Center Hamburg-Eppendorf, Germany
| | - Karen Legler
- Department of Gynecology, University Medical Center Hamburg-Eppendorf, Germany
| | - Minyue Qi
- Bioinformatic Core Facility, University Medical Center Hamburg-Eppendorf, Germany
| | - Udo Schumacher
- Institute of Anatomy and Experimental Morphology, University Medical Center Hamburg-Eppendorf, Germany
| | - Barbara Schmalfeldt
- Department of Gynecology, University Medical Center Hamburg-Eppendorf, Germany
| | - Christine Stürken
- Institute of Anatomy and Experimental Morphology, University Medical Center Hamburg-Eppendorf, Germany
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Li XF, Hua T, Li Y, Tian YJ, Huo Y, Kang S. The HSP70 gene predicts prognosis and response to chemotherapy in epithelial ovarian cancer. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:806. [PMID: 34268419 PMCID: PMC8246186 DOI: 10.21037/atm-21-2087] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 05/08/2021] [Indexed: 12/21/2022]
Abstract
Background Chemotherapy resistance is an intractable problem in treating patients with epithelial ovarian cancer (EOC). Heat shock proteins (HSPs) act as apoptosis inhibitors and are highly conserved genetically. Most HSPs have strong cytoprotective effects, and their overexpression inhibits apoptosis. This has been demonstrated for HSP70. Heat shock protein 70 (HSP70) expression is abnormally upregulated in malignant cells. Furthermore, HSP70 can inhibit cell death and promote chemotherapeutic resistance. In our study, the relationship between the HSP70 gene and primary chemotherapy resistance and clinical outcome in patients with EOC was explored. Methods Quantitative real-time polymerase chain (qRT-PCR) was applied to determine HSP70 messenger RNA (mRNA) levels, and immunohistochemistry assay was conducted to determine HSP70 protein level. HSP70 overexpression was assessed to clarify its role on chemotherapy resistance to cisplatin in SKOV3 cell lines. Results RT-qPCR assay indicated a strong relationship between HSP70 expression and chemotherapy resistance in patients with EOC. In cultured SKOV3 cells, overexpression of HSP70 inhibited cell sensitivity to cisplatin. Kaplan-Meier analysis demonstrated high HSP70 expression was associated with poor outcome of EOC patients. In multivariate models, high HSP70 expression independently predicted this poor outcome. Conclusions HSP70 predicts the prognosis and response to chemotherapy in EOC patients.
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Affiliation(s)
- Xiao-Fei Li
- Department of Obstetrics and Gynecology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Tian Hua
- Department of Obstetrics and Gynecology, Affiliated Xing Tai People Hospital of Hebei Medial University, Xingtai, China
| | - Yan Li
- Department of Molecular Biology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Yun-Jie Tian
- Department of Obstetrics and Gynecology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Yan Huo
- Department of Intensive Care Unit, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Shan Kang
- Department of Obstetrics and Gynecology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
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Hu W, Xu Z, Zhu S, Sun W, Wang X, Tan C, Zhang Y, Zhang G, Xu Y, Tang J. Small extracellular vesicle-mediated Hsp70 intercellular delivery enhances breast cancer adriamycin resistance. Free Radic Biol Med 2021; 164:85-95. [PMID: 33418113 DOI: 10.1016/j.freeradbiomed.2020.12.436] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 12/18/2020] [Accepted: 12/27/2020] [Indexed: 12/19/2022]
Abstract
Adriamycin (ADR) resistance poses a significant challenge for successfully treating breast cancer (BCa). The mechanism underlying intrinsically acquisition of the resistance remains to be fully elucidated. Here, we describe that small extracellular vesicles (sEVs) mediated Hsp70 transfer is implicated in ADR resistance. The resistant cells derived sEVs were incubated with sensitive cells, thereby transmitting the resistant phenotype to the recipient cells. The internalization of the sEVs in the recipient cells and sEV-mediated Hsp70 transfer into mitochondria were examined by confocal microscope and transmission electron microscopy (TEM). Oxygen consumption rate (OCR) incorporated with extracellular acidification rate (ECAR) was quantified by Seahorse XF Analyzer. Mechanistically, sEVs transported Hsp70, leading to increased reactive oxygen species (ROS) and impaired mitochondria in the recipient cells, thereby inhibiting respiration but promoting glycolysis. The sEVs effect on the metabolism of the recipient cells was alleviated by silencing Hsp70 in sEVs donor cells. The aspect of sEV-Hsp70 on drug-resistant transmission was further validated by tumor zebrafish xenografts. The finding from this work suggests that sEV-mediated Hsp70 intercellular delivery enhances ADR resistance mainly through reprogramming the recipient cell energy metabolism.
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Affiliation(s)
- Weizi Hu
- Laboratory of Cancer Biology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & the Affiliated Cancer Hospital of Nanjing Medical University, 42 Baiziting, Nanjing, 210009, PR China; Department of General Surgery, The First Affiliated Hospital with Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, PR China; Jingzhou Center Hospital, Tongji Medical College, Huazhong University of Science and Technology, No. 60 Jingzhon Middle Rd., Jingzhon, Hubei Province, PR China
| | - Zhi Xu
- Laboratory of Cancer Biology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & the Affiliated Cancer Hospital of Nanjing Medical University, 42 Baiziting, Nanjing, 210009, PR China; Department of General Surgery, The First Affiliated Hospital with Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, PR China
| | - Shuyi Zhu
- Laboratory of Cancer Biology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & the Affiliated Cancer Hospital of Nanjing Medical University, 42 Baiziting, Nanjing, 210009, PR China; Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Nanjing Medical University, Nanjing, 211166, PR China
| | - Wenbo Sun
- Laboratory of Cancer Biology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & the Affiliated Cancer Hospital of Nanjing Medical University, 42 Baiziting, Nanjing, 210009, PR China
| | - Xiumei Wang
- Laboratory of Cancer Biology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & the Affiliated Cancer Hospital of Nanjing Medical University, 42 Baiziting, Nanjing, 210009, PR China
| | - Chunli Tan
- Laboratory of Cancer Biology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & the Affiliated Cancer Hospital of Nanjing Medical University, 42 Baiziting, Nanjing, 210009, PR China; Department of General Surgery, The First Affiliated Hospital with Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, PR China
| | - Yanyan Zhang
- Laboratory of Cancer Biology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & the Affiliated Cancer Hospital of Nanjing Medical University, 42 Baiziting, Nanjing, 210009, PR China
| | - Guangqin Zhang
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, 639 Longmian Road, Nanjing, 211198, PR China
| | - Yong Xu
- Laboratory of Cancer Biology, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & the Affiliated Cancer Hospital of Nanjing Medical University, 42 Baiziting, Nanjing, 210009, PR China; Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Nanjing Medical University, Nanjing, 211166, PR China.
| | - Jinhai Tang
- Department of General Surgery, The First Affiliated Hospital with Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, PR China.
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Chakafana G, Shonhai A. The Role of Non-Canonical Hsp70s (Hsp110/Grp170) in Cancer. Cells 2021; 10:254. [PMID: 33525518 PMCID: PMC7911927 DOI: 10.3390/cells10020254] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 01/21/2021] [Accepted: 01/26/2021] [Indexed: 02/06/2023] Open
Abstract
Although cancers account for over 16% of all global deaths annually, at present, no reliable therapies exist for most types of the disease. As protein folding facilitators, heat shock proteins (Hsps) play an important role in cancer development. Not surprisingly, Hsps are among leading anticancer drug targets. Generally, Hsp70s are divided into two main subtypes: canonical Hsp70 (Escherichia coli Hsp70/DnaK homologues) and the non-canonical (Hsp110 and Grp170) members. These two main Hsp70 groups are delineated from each other by distinct structural and functional specifications. Non-canonical Hsp70s are considered as holdase chaperones, while canonical Hsp70s are refoldases. This unique characteristic feature is mirrored by the distinct structural features of these two groups of chaperones. Hsp110/Grp170 members are larger as they possess an extended acidic insertion in their substrate binding domains. While the role of canonical Hsp70s in cancer has received a fair share of attention, the roles of non-canonical Hsp70s in cancer development has received less attention in comparison. In the current review, we discuss the structure-function features of non-canonical Hsp70s members and how these features impact their role in cancer development. We further mapped out their interactome and discussed the prospects of targeting these proteins in cancer therapy.
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Affiliation(s)
| | - Addmore Shonhai
- Department of Biochemistry, University of Venda, Private Bag X5050, 0950 Thohoyandou, South Africa
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13
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Shehata AM, Saadeldin IM, Tukur HA, Habashy WS. Modulation of Heat-Shock Proteins Mediates Chicken Cell Survival against Thermal Stress. Animals (Basel) 2020; 10:E2407. [PMID: 33339245 PMCID: PMC7766623 DOI: 10.3390/ani10122407] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 12/11/2020] [Accepted: 12/15/2020] [Indexed: 12/14/2022] Open
Abstract
Heat stress is one of the most challenging environmental stresses affecting domestic animal production, particularly commercial poultry, subsequently causing severe yearly economic losses. Heat stress, a major source of oxidative stress, stimulates mitochondrial oxidative stress and cell dysfunction, leading to cell damage and apoptosis. Cell survival under stress conditions needs urgent response mechanisms and the consequent effective reinitiation of cell functions following stress mitigation. Exposure of cells to heat-stress conditions induces molecules that are ready for mediating cell death and survival signals, and for supporting the cell's tolerance and/or recovery from damage. Heat-shock proteins (HSPs) confer cell protection against heat stress via different mechanisms, including developing thermotolerance, modulating apoptotic and antiapoptotic signaling pathways, and regulating cellular redox conditions. These functions mainly depend on the capacity of HSPs to work as molecular chaperones and to inhibit the aggregation of non-native and misfolded proteins. This review sheds light on the key factors in heat-shock responses for protection against cell damage induced by heat stress in chicken.
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Affiliation(s)
- Abdelrazeq M. Shehata
- Department of Animal Production, Faculty of Agriculture, Al-Azhar University, Cairo 11651, Egypt;
- Department of Dairy Science and Food Technology, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi 221005, India
| | - Islam M. Saadeldin
- Department of Animal Production, College of Food and Agricultural Sciences, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Hammed A. Tukur
- Department of Animal Production, College of Food and Agricultural Sciences, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Walid S. Habashy
- Department of Animal and Poultry Production, Damanhour University, Damanhour 22511, Egypt;
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14
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Njemini R, Verhaeghen K, Mets T, Weets I, Bautmans I. A Novel Bead-Based Immunoassay for the Measurement of Heat Shock Proteins 27 and 70. Pathogens 2020; 9:pathogens9110863. [PMID: 33105839 PMCID: PMC7690633 DOI: 10.3390/pathogens9110863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 10/20/2020] [Accepted: 10/20/2020] [Indexed: 11/17/2022] Open
Abstract
Heat shock proteins (HSPs) play an essential role in protecting proteins from denaturation and are implicated in diverse pathophysiological conditions like cardiovascular diseases, cancer, infections, and neurodegenerative diseases. Scientific evidence indicates that if HSP expression falls below a certain level, cells become sensitive to oxidative damage that accelerates protein aggregation diseases. On the other hand, persistently enhanced levels of HSP can lead to inflammatory and oncogenic changes. To date, although techniques for measuring HSPs exist, these assays are limited for use in specific sample types or are time consuming. Therefore, in the present study, we developed a single-molecule assay digital ELISA technology (Single Molecule Array—SIMOA) for the measurement of HSPs, which is time effective and can be adapted to measure multiple analytes simultaneously from a single sample. This technique combines two distinct HSP-specific antibodies that recognize different epitopes on the HSP molecule. A recombinant human HSP protein was used as the standard material. The assay performance characteristics were evaluated by repeated testing of samples spiked with HSP peptide at different levels. The limit of detection was 0.16 and 2 ng/mL for HSP27 and HSP70, respectively. The inter- and intra-assay coefficients of variation were less than 20% in all tested conditions for both HSPs. The HSP levels assayed after serial dilution of samples portrayed dilutional linearity (on average 109%, R2 = 0.998, p < 0.001, for HSP27 and 93%, R2 = 0.994, p < 0.001, for HSP70). A high linear response was also demonstrated with admixtures of plasma exhibiting relatively very low and high levels of HSP70 (R2 = 0.982, p < 0.001). Analyte spike recovery varied between 57% and 95%. Moreover, the relative HSP values obtained using Western blotting correlated significantly with HSP values obtained with the newly developed SIMOA assay (r = 0.815, p < 0.001 and r = 0.895, p < 0.001 for HSP70 and HSP27, respectively), indicating that our method is reliable. In conclusion, the assay demonstrates analytical performance for the accurate assessment of HSPs in various sample types and offers the advantage of a huge range of dilution linearity, indicating that samples with HSP concentration highly above the calibration range can be diluted into range without affecting the precision of the assay.
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Affiliation(s)
- Rose Njemini
- Frailty in Ageing Research Group, Vrije Universiteit Brussel, Laarbeeklaan 103, B-1090 Brussels, Belgium;
- Gerontology Department, Vrije Universiteit Brussel, Laarbeeklaan 103, B-1090 Brussels, Belgium
- Correspondence: ; Tel.: +32-2-477-42-41; Fax: +32-2-477-63-64
| | - Katrijn Verhaeghen
- Laboratory of Clinical Chemistry and Radiology, Universitair Ziekenhuis Brussel, Laarbeeklaan 101, B-1090 Brussels, Belgium; (K.V.); (I.W.)
| | - Tony Mets
- Frailty in Ageing Research Group, Vrije Universiteit Brussel, Laarbeeklaan 103, B-1090 Brussels, Belgium;
- Gerontology Department, Vrije Universiteit Brussel, Laarbeeklaan 103, B-1090 Brussels, Belgium
- Department of Geriatric Medicine, Universitair Ziekenhuis Brussel, Laarbeeklaan 101, B-1090 Brussels, Belgium;
| | - Ilse Weets
- Laboratory of Clinical Chemistry and Radiology, Universitair Ziekenhuis Brussel, Laarbeeklaan 101, B-1090 Brussels, Belgium; (K.V.); (I.W.)
| | - Ivan Bautmans
- Frailty in Ageing Research Group, Vrije Universiteit Brussel, Laarbeeklaan 103, B-1090 Brussels, Belgium;
- Gerontology Department, Vrije Universiteit Brussel, Laarbeeklaan 103, B-1090 Brussels, Belgium
- Department of Geriatric Medicine, Universitair Ziekenhuis Brussel, Laarbeeklaan 101, B-1090 Brussels, Belgium;
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15
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Yuan J, Lan H, Jiang X, Zeng D, Xiao S. Bcl‑2 family: Novel insight into individualized therapy for ovarian cancer (Review). Int J Mol Med 2020; 46:1255-1265. [PMID: 32945348 PMCID: PMC7447322 DOI: 10.3892/ijmm.2020.4689] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 06/25/2020] [Indexed: 12/24/2022] Open
Abstract
Chemoresistance to platinum‑based chemotherapy for ovarian cancer in the advanced stage remains a formidable concern clinically. Increasing evidence has revealed that apoptosis represents the terminal events of the anti‑tumor mechanisms of a number of chemical drugs and has a close association with chemoresistance in ovarian cancer. The B‑cell lymphoma‑2 (Bcl‑2) family plays a crucial role in apoptosis and has a close association with chemoresistance in ovarian cancer. Some drugs that target Bcl‑2 family members have shown efficacy in overcoming the chemoresistance of ovarian cancer. A BH3 profiling assay was found to be able to predict how primed a cell is when treated with antitumor drugs. The present review summarizes the role of the Bcl‑2 family in mediating cell death in response to antitumor drugs and novel drugs that target Bcl‑2 family members. The application of the new functional assay, BH3 profiling, is also discussed herein. Furthermore, the present review presents the hypothesis that targeting Bcl‑2 family members may prove to be helpful for the individualized therapy of ovarian cancer in clinical practice and in laboratory research.
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Affiliation(s)
- Jing Yuan
- Department of Gynecology and Obstetrics, Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
| | - Hua Lan
- Department of Gynecology and Obstetrics, Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
| | - Xiaoyan Jiang
- Department of Gynecology and Obstetrics, Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
| | - Da Zeng
- Department of Gynecology and Obstetrics, Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
| | - Songshu Xiao
- Department of Gynecology and Obstetrics, Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
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16
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Sojka DR, Gogler-Pigłowska A, Klarzyńska K, Klimczak M, Zylicz A, Głowala-Kosińska M, Krawczyk Z, Scieglinska D. HSPA2 Chaperone Contributes to the Maintenance of Epithelial Phenotype of Human Bronchial Epithelial Cells but Has Non-Essential Role in Supporting Malignant Features of Non-Small Cell Lung Carcinoma, MCF7, and HeLa Cancer Cells. Cancers (Basel) 2020; 12:cancers12102749. [PMID: 32987811 PMCID: PMC7598654 DOI: 10.3390/cancers12102749] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 09/08/2020] [Accepted: 09/19/2020] [Indexed: 12/13/2022] Open
Abstract
Simple Summary Heat shock proteins A (HSPA) are molecular chaperones that play a central role in the cellular protein quality control. One of them is HSPA2 which recently was indicated as a novel cancer-related protein due to its elevated expression in various tumors and reported prognostic significance. Several previous in vitro studies have shown significant role of HSPA2 in supporting cancer cells growth and invasiveness. Our data presented in this article contradict the current belief of the essential role of HSPA2 chaperone and show that HSPA2 is not crucial for maintenance of the malignant phenotype of lung, breast, and cervical cancer cells. Instead, we revealed HSPA2’s role in supporting clonogenic potential and adhesive ability of bronchial epithelial cells. Therefore, further research should concentrate on elucidating HSPA2 roles in epithelial cells. Abstract Heat Shock Protein A2 (HSPA2) is a member of the HSPA (HSP70) chaperone family and has a critical role for male fertility. HSPA2 is present in a number of somatic organs. Limited evidence suggests that HSPA2 may be involved in regulating epithelial cell differentiation. HSPA2 also emerged as a cancer-related chaperone; however, no consensus on its functional significance has been reached so far. In this study, we compared the phenotypic effects of HSPA2 deficit in non-transformed human bronchial epithelial cells (HBEC), and in lung, breast, and cervical cancer cells. We used various techniques to inhibit the HSPA2 gene expression in order to examine the impact of HSPA2 deficiency on cell growth, migration, adhesion, and invasion. Our results show that HBEC but not cancer cells are sensitive to HSPA2 deficit. HSPA2 knockdown in HBEC cells impaired their clone-forming ability and adhesiveness. Thus, our results indicate that epithelial cells can rely on a specific activity of HSPA2, but such dependence can be lost in epithelial cells that have undergone malignant transformation.
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Affiliation(s)
- Damian Robert Sojka
- Center for Translational Research and Molecular Biology of Cancer, Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice Branch, 44-102 Gliwice, Poland; (D.R.S.); (A.G.-P.); (K.K.); (Z.K.)
| | - Agnieszka Gogler-Pigłowska
- Center for Translational Research and Molecular Biology of Cancer, Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice Branch, 44-102 Gliwice, Poland; (D.R.S.); (A.G.-P.); (K.K.); (Z.K.)
| | - Katarzyna Klarzyńska
- Center for Translational Research and Molecular Biology of Cancer, Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice Branch, 44-102 Gliwice, Poland; (D.R.S.); (A.G.-P.); (K.K.); (Z.K.)
| | - Marta Klimczak
- International Institute of Molecular and Cell Biology, 02-109 Warsaw, Poland; (M.K.); (A.Z.)
| | - Alicja Zylicz
- International Institute of Molecular and Cell Biology, 02-109 Warsaw, Poland; (M.K.); (A.Z.)
| | - Magdalena Głowala-Kosińska
- Department of Bone Marrow Transplantation and Oncohematology, Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice Branch, 44-102 Gliwice, Poland;
| | - Zdzisław Krawczyk
- Center for Translational Research and Molecular Biology of Cancer, Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice Branch, 44-102 Gliwice, Poland; (D.R.S.); (A.G.-P.); (K.K.); (Z.K.)
| | - Dorota Scieglinska
- Center for Translational Research and Molecular Biology of Cancer, Maria Sklodowska-Curie National Research Institute of Oncology, Gliwice Branch, 44-102 Gliwice, Poland; (D.R.S.); (A.G.-P.); (K.K.); (Z.K.)
- Correspondence:
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17
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Wang M, Wei K, Qian B, Feiler S, Lemekhova A, Büchler MW, Hoffmann K. HSP70-eIF4G Interaction Promotes Protein Synthesis and Cell Proliferation in Hepatocellular Carcinoma. Cancers (Basel) 2020; 12:cancers12082262. [PMID: 32823513 PMCID: PMC7464799 DOI: 10.3390/cancers12082262] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 08/07/2020] [Accepted: 08/10/2020] [Indexed: 12/15/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is the third leading cause of cancer-related death worldwide and features various tumor escape mechanisms from treatment-induced stress. HSP70 plays a critical role in cell protection under stress. eIF4G physiologically regulates the formation of the protein-ribosomal complex and maintains cellular protein synthesis. However, the precise cooperation of both in HCC remains poorly understood. In this study, we demonstrate that HSP70 expression is positively correlated with eIF4G in tumor specimens from 25 HCC patients, in contrast to the adjacent non-tumorous tissues, and that both influence the survival of HCC patients. Mechanistically, this study indicates that HSP70 and eIF4G interact with each other in vitro. We further show that the HSP70–eIF4G interaction contributes to promoting cellular protein synthesis, enhancing cell proliferation, and inhibiting cell apoptosis. Collectively, this study reveals the pivotal role of HSP70–eIF4G interaction as an escape mechanism in HCC. Therefore, modulation of the HSP70–eIF4G interaction might be a potential novel therapeutic target of HCC treatment.
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18
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Albakova Z, Armeev GA, Kanevskiy LM, Kovalenko EI, Sapozhnikov AM. HSP70 Multi-Functionality in Cancer. Cells 2020; 9:cells9030587. [PMID: 32121660 PMCID: PMC7140411 DOI: 10.3390/cells9030587] [Citation(s) in RCA: 117] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 02/20/2020] [Accepted: 02/28/2020] [Indexed: 12/20/2022] Open
Abstract
The 70-kDa heat shock proteins (HSP70s) are abundantly present in cancer, providing malignant cells selective advantage by suppressing multiple apoptotic pathways, regulating necrosis, bypassing cellular senescence program, interfering with tumor immunity, promoting angiogenesis and supporting metastasis. This direct involvement of HSP70 in most of the cancer hallmarks explains the phenomenon of cancer "addiction" to HSP70, tightly linking tumor survival and growth to the HSP70 expression. HSP70 operates in different states through its catalytic cycle, suggesting that it can multi-function in malignant cells in any of these states. Clinically, tumor cells intensively release HSP70 in extracellular microenvironment, resulting in diverse outcomes for patient survival. Given its clinical significance, small molecule inhibitors were developed to target different sites of the HSP70 machinery. Furthermore, several HSP70-based immunotherapy approaches were assessed in clinical trials. This review will explore different roles of HSP70 on cancer progression and emphasize the importance of understanding the flexibility of HSP70 nature for future development of anti-cancer therapies.
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Affiliation(s)
- Zarema Albakova
- Department of Biology, Lomonosov Moscow State University, 119192 Moscow, Russia; (G.A.A.); (A.M.S.)
- Department of Immunology, Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (L.M.K.); (E.I.K.)
- Correspondence:
| | - Grigoriy A. Armeev
- Department of Biology, Lomonosov Moscow State University, 119192 Moscow, Russia; (G.A.A.); (A.M.S.)
| | - Leonid M. Kanevskiy
- Department of Immunology, Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (L.M.K.); (E.I.K.)
| | - Elena I. Kovalenko
- Department of Immunology, Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (L.M.K.); (E.I.K.)
| | - Alexander M. Sapozhnikov
- Department of Biology, Lomonosov Moscow State University, 119192 Moscow, Russia; (G.A.A.); (A.M.S.)
- Department of Immunology, Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (L.M.K.); (E.I.K.)
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19
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Huang L, Wang Y, Bai J, Yang Y, Wang F, Feng Y, Zhang R, Li F, Zhang P, Lv N, Lei L, Hu J, He A. Blockade of HSP70 by VER-155008 synergistically enhances bortezomib-induced cytotoxicity in multiple myeloma. Cell Stress Chaperones 2020; 25:357-367. [PMID: 32026316 PMCID: PMC7058745 DOI: 10.1007/s12192-020-01078-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 01/27/2020] [Accepted: 01/29/2020] [Indexed: 02/07/2023] Open
Abstract
Proteasome inhibitor bortezomib is one of the most effective drugs currently available for the treatment of multiple myeloma (MM). However, the intrinsic and acquired resistance to bortezomib can limit its effectiveness. The activation of heat shock response has been characterized as a potential resistance mechanism protecting MM cells from bortezomib-induced cell death. In this study, in response to bortezomib therapy, we discovered that HSP70 is one of the most substantially upregulated heat shock proteins. In order to further explore approaches to sensitizing bortezomib-based treatment for MM, we investigated whether targeting HSP70 using a specific inhibitor VER-155008 combined with bortezomib could overcome the acquired resistance in MM. We found that HSP70 inhibitor VER-155008 alone significantly decreased MM cell viability. Moreover, the combination of VER-155008 and bortezomib synergistically induced MM cell apoptosis markedly in vitro. Notably, the combined treatment was found to increase the cleavage of PARP, an early marker of chemotherapy-induced apoptosis. Importantly, the reduction of anti-apoptotic Bcl-2 family member Bcl-2, Bcl-xL, and Mcl-1 and the induction of pro-apoptotic Bcl-2 family member BH3-only protein NOXA and Bim were confirmed to be tightly associated with the synergism. Finally, the ER stress marker CHOP (CCAAT-enhancer binding protein homologous protein), which can cause transcriptional activation of genes involved in cell apoptosis, was markedly induced by both VER-155008 and bortezomib. Taken together, our finding of a strong synergistic interaction between VER-155008 and bortezomib may support for combination therapy in MM patients in the future.
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Affiliation(s)
- Lingjuan Huang
- Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
- Department of General Medicine, The First Affiliated Hospital of Xi'an Medical University, Xi'an, Shaanxi, China
- School of General Medicine Xi'an Medical University, Xi'an, Shaanxi, China
| | - Yanmeng Wang
- Department of Cell Biology and Genetics, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, China
| | - Ju Bai
- Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Yun Yang
- Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Fangxia Wang
- Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Yuandong Feng
- Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Ru Zhang
- Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Fangmei Li
- Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Peihua Zhang
- Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Nan Lv
- Department of Cell Biology and Genetics, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, China
| | - Lei Lei
- Department of Cell Biology and Genetics, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, China
| | - Jinsong Hu
- Department of Cell Biology and Genetics, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, China.
- Key Laboratory of Environment and Genes Related to Diseases, (Xi'an Jiaotong University), Ministry of Education, Xi'an, Shaanxi, China.
| | - Aili He
- Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China.
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20
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Yun CW, Kim HJ, Lim JH, Lee SH. Heat Shock Proteins: Agents of Cancer Development and Therapeutic Targets in Anti-Cancer Therapy. Cells 2019; 9:cells9010060. [PMID: 31878360 PMCID: PMC7017199 DOI: 10.3390/cells9010060] [Citation(s) in RCA: 158] [Impact Index Per Article: 31.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 12/06/2019] [Accepted: 12/21/2019] [Indexed: 12/24/2022] Open
Abstract
Heat shock proteins (HSPs) constitute a large family of molecular chaperones classified by their molecular weights, and they include HSP27, HSP40, HSP60, HSP70, and HSP90. HSPs function in diverse physiological and protective processes to assist in maintaining cellular homeostasis. In particular, HSPs participate in protein folding and maturation processes under diverse stressors such as heat shock, hypoxia, and degradation. Notably, HSPs also play essential roles across cancers as they are implicated in a variety of cancer-related activities such as cell proliferation, metastasis, and anti-cancer drug resistance. In this review, we comprehensively discuss the functions of HSPs in association with cancer initiation, progression, and metastasis and anti-cancer therapy resistance. Moreover, the potential utilization of HSPs to enhance the effects of chemo-, radio-, and immunotherapy is explored. Taken together, HSPs have multiple clinical usages as biomarkers for cancer diagnosis and prognosis as well as the potential therapeutic targets for anti-cancer treatment.
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Affiliation(s)
- Chul Won Yun
- Medical Science Research Institute, Soonchunhyang University Seoul Hospital, Seoul 04401, Korea; (C.W.Y.); (H.J.K.); (J.H.L.)
| | - Hyung Joo Kim
- Medical Science Research Institute, Soonchunhyang University Seoul Hospital, Seoul 04401, Korea; (C.W.Y.); (H.J.K.); (J.H.L.)
| | - Ji Ho Lim
- Medical Science Research Institute, Soonchunhyang University Seoul Hospital, Seoul 04401, Korea; (C.W.Y.); (H.J.K.); (J.H.L.)
| | - Sang Hun Lee
- Medical Science Research Institute, Soonchunhyang University Seoul Hospital, Seoul 04401, Korea; (C.W.Y.); (H.J.K.); (J.H.L.)
- Department of Biochemistry, Soonchunhyang University College of Medicine, Cheonan 31538, Korea
- Correspondence: ; Tel.: +82-02-709-2029
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21
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Park S, Ko W, Park S, Lee HS, Shin I. Evaluation of the Interaction between Bax and Hsp70 in Cells by Using a FRET System Consisting of a Fluorescent Amino Acid and YFP as a FRET Pair. Chembiochem 2019; 21:59-63. [DOI: 10.1002/cbic.201900293] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Indexed: 12/14/2022]
Affiliation(s)
- Seong‐Hyun Park
- Department of ChemistryYonsei University Seoul 03722 South Korea
| | - Wooseok Ko
- Department of ChemistrySogang University Seoul 04107 South Korea
| | - Sang‐Hyun Park
- Department of ChemistryYonsei University Seoul 03722 South Korea
| | - Hyun Soo Lee
- Department of ChemistrySogang University Seoul 04107 South Korea
| | - Injae Shin
- Department of ChemistryYonsei University Seoul 03722 South Korea
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22
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Hoter A, Naim HY. Heat Shock Proteins and Ovarian Cancer: Important Roles and Therapeutic Opportunities. Cancers (Basel) 2019; 11:E1389. [PMID: 31540420 PMCID: PMC6769485 DOI: 10.3390/cancers11091389] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 09/11/2019] [Accepted: 09/16/2019] [Indexed: 12/17/2022] Open
Abstract
Ovarian cancer is a serious cause of death in gynecological oncology. Delayed diagnosis and poor survival rates associated with late stages of the disease are major obstacles against treatment efforts. Heat shock proteins (HSPs) are stress responsive molecules known to be crucial in many cancer types including ovarian cancer. Clusterin (CLU), a unique chaperone protein with analogous oncogenic criteria to HSPs, has also been proven to confer resistance to anti-cancer drugs. Indeed, these chaperone molecules have been implicated in diagnosis, prognosis, metastasis and aggressiveness of various cancers. However, relative to other cancers, there is limited body of knowledge about the molecular roles of these chaperones in ovarian cancer. In the current review, we shed light on the diverse roles of HSPs as well as related chaperone proteins like CLU in the pathogenesis of ovarian cancer and elucidate their potential as effective drug targets.
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Affiliation(s)
- Abdullah Hoter
- Department of Biochemistry and Chemistry of Nutrition, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt.
- Department of Physiological Chemistry, University of Veterinary Medicine Hannover, 30559 Hannover, Germany.
| | - Hassan Y Naim
- Department of Physiological Chemistry, University of Veterinary Medicine Hannover, 30559 Hannover, Germany.
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Sannino S, Guerriero CJ, Sabnis AJ, Stolz DB, Wallace CT, Wipf P, Watkins SC, Bivona TG, Brodsky JL. Compensatory increases of select proteostasis networks after Hsp70 inhibition in cancer cells. J Cell Sci 2018; 131:jcs.217760. [PMID: 30131440 DOI: 10.1242/jcs.217760] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Accepted: 08/02/2018] [Indexed: 12/13/2022] Open
Abstract
Cancer cells thrive when challenged with proteotoxic stress by inducing components of the protein folding, proteasome, autophagy and unfolded protein response (UPR) pathways. Consequently, specific molecular chaperones have been validated as targets for anti-cancer therapies. For example, inhibition of Hsp70 family proteins (hereafter Hsp70) in rhabdomyosarcoma triggers UPR induction and apoptosis. To define how these cancer cells respond to compromised proteostasis, we compared rhabdomyosarcoma cells that were sensitive (RMS13) or resistant (RMS13-R) to the Hsp70 inhibitor MAL3-101. We discovered that endoplasmic reticulum-associated degradation (ERAD) and autophagy were activated in RMS13-R cells, suggesting that resistant cells overcome Hsp70 ablation by increasing misfolded protein degradation. Indeed, RMS13-R cells degraded ERAD substrates more rapidly than RMS cells and induced the autophagy pathway. Surprisingly, inhibition of the proteasome or ERAD had no effect on RMS13-R cell survival, but silencing of select autophagy components or treatment with autophagy inhibitors restored MAL3-101 sensitivity and led to apoptosis. These data indicate a route through which cancer cells overcome a chaperone-based therapy, define how cells can adapt to Hsp70 inhibition, and demonstrate the value of combined chaperone and autophagy-based therapies.This article has an associated First Person interview with the first author of the paper.
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Affiliation(s)
- Sara Sannino
- Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | | | - Amit J Sabnis
- Department of Pediatrics, University of California, San Francisco, CA 94143, USA.,Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, CA 94143, USA
| | - Donna Beer Stolz
- Department of Medicine, University of California, San Francisco, CA 94143, USA
| | - Callen T Wallace
- Department of Medicine, University of California, San Francisco, CA 94143, USA
| | - Peter Wipf
- Department of Cell Biology, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Simon C Watkins
- Department of Medicine, University of California, San Francisco, CA 94143, USA
| | - Trever G Bivona
- Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, CA 94143, USA.,Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Jeffrey L Brodsky
- Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA 15260, USA
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Sheng L, Tang T, Liu Y, Ma Y, Wang Z, Tao H, Zhang Y, Qi Z. Inducible HSP70 antagonizes cisplatin‑induced cell apoptosis through inhibition of the MAPK signaling pathway in HGC‑27 cells. Int J Mol Med 2018; 42:2089-2097. [PMID: 30066840 PMCID: PMC6108861 DOI: 10.3892/ijmm.2018.3789] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 07/11/2018] [Indexed: 12/22/2022] Open
Abstract
Inducible heat shock protein 70 (HSP70; also known as HSPA1 or HSP72) is implicated in cancer. As a stress-inducible heat shock protein, HSP70 is highly expressed in a variety of cancers and correlates with metastasis, chemotherapy resistance and tumor prognosis. The present study demonstrated that suppression of HSP70 through the specific inhibitor pifithrin-µ or by HSP70 knockdown enhanced cisplatin-induced apoptosis in HGC-27 gastric cancer cells. By contrast, upregulation of HSP70 through transfection of a HSP70 overexpressing plasmid decreased cisplatin-induced HGC-27 cell apoptosis. In exploring the underlying molecular mechanisms, the present results revealed that HSP70 antagonized cisplatin-induced HGC-27 cell apoptosis by regulating the mitogen-activated protein kinase (MAPK) signaling pathway. In addition, suppressing the MAPK pathway enhanced cisplatin-induced HGC-27 cell apoptosis. Collectively, the present findings suggest that inhibition of HSP70 expression enhanced the sensitivity of HGC-27 cells to cisplatin via the MAPK signaling pathway, and that HSP70 may serve as a potential therapeutic target in gastric cancer.
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Affiliation(s)
- Lili Sheng
- Department of Oncology, Yijishan Hospital, Wannan Medical College, Wuhu, Anhui 241002, P.R. China
| | - Tuo Tang
- Anhui Province Key Laboratory of Active Biological Macromolecules, Wannan Medical College, Wuhu, Anhui 241002, P.R. China
| | - Yinhua Liu
- Department of Pathology, Yijishan Hospital, Wannan Medical College, Wuhu, Anhui 241002, P.R. China
| | - Yunfei Ma
- Anhui Province Key Laboratory of Active Biological Macromolecules, Wannan Medical College, Wuhu, Anhui 241002, P.R. China
| | - Ziqian Wang
- Anhui Province Key Laboratory of Active Biological Macromolecules, Wannan Medical College, Wuhu, Anhui 241002, P.R. China
| | - Hong Tao
- Anhui Province Key Laboratory of Active Biological Macromolecules, Wannan Medical College, Wuhu, Anhui 241002, P.R. China
| | - Yao Zhang
- Anhui Province Key Laboratory of Active Biological Macromolecules, Wannan Medical College, Wuhu, Anhui 241002, P.R. China
| | - Zhilin Qi
- Anhui Province Key Laboratory of Active Biological Macromolecules, Wannan Medical College, Wuhu, Anhui 241002, P.R. China
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Naidoo DB, Phulukdaree A, Anand K, Sewram V, Chuturgoon AA. Centella asiatica Fraction-3 Suppresses the Nuclear Factor Erythroid 2-Related Factor 2 Anti-Oxidant Pathway and Enhances Reactive Oxygen Species-Mediated Cell Death in Cancerous Lung A549 Cells. J Med Food 2018; 20:959-968. [PMID: 29040016 DOI: 10.1089/jmf.2017.0005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Centella asiatica is a tropical medicinal plant that is commonly used in traditional medicine. Medicinal properties of C. asiatica include anti-oxidant, anti-inflammatory, and anti-cancer activity. We investigated the anti-oxidant and anti-proliferative/cytotoxic effects of a semi-purified fraction of C. asiatica ethanolic leaf extract (C3) in cancerous lung A549 cells. C3 was obtained by silica column fractionation and identified by using thin-layer chromatography and gas chromatography mass spectrometry. Cytotoxicity of C3 in A549 cells was evaluated (cell viability assay-WST-1; 24 h; [0.2-3 mg/mL]) to determine an inhibitory concentration (IC50). Intracellular reactive oxygen species (IROS), mitochondrial membrane potential (flow cytometry), malondialdehyde (MDA), lactate dehydrogenase (LDH) (spectrophotometry), glutathione (GSH), oxidised glutathione (GSSG), adenosine triphosphate levels, caspase activity (luminometry), and DNA damage (comet assay) were evaluated. Protein expression (Nrf-2, p53, Bax, Bcl-2, and HSP-70) and gene expression (Nrf-2, GPx, SOD, CAT, c-myc, and OGG-1) were quantified by western blotting and quantitative polymerase chain reaction (qPCR), respectively. C3 dose dependently decreased A549 cell viability. The IC50 of C3 increased MDA, IROS, mitochondrial depolarization, LDH, caspase (-8, -9, -3/7) activity, DNA damage, GSH levels, Nrf-2 protein expression, HSP-70 protein expression, and OGG-1 gene expression (P < .05). GSSG levels, anti-oxidant (Nrf-2, GPx, SOD) gene expression, p53, Bax, and Bcl-2 protein expression were decreased by C3 (P < .02). C3 diminished the anti-oxidant gene expression and induced anti-proliferative/cytotoxic effects in A549 cells.
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Affiliation(s)
- Dhaneshree Bestinee Naidoo
- 1 Discipline of Medical Biochemistry and Chemical Pathology, Faculty of Health Sciences, Howard College, University of KwaZulu-Natal , Durban, South Africa
| | - Alisa Phulukdaree
- 1 Discipline of Medical Biochemistry and Chemical Pathology, Faculty of Health Sciences, Howard College, University of KwaZulu-Natal , Durban, South Africa
| | - Krishnan Anand
- 1 Discipline of Medical Biochemistry and Chemical Pathology, Faculty of Health Sciences, Howard College, University of KwaZulu-Natal , Durban, South Africa
| | - Vikash Sewram
- 2 African Cancer Institute and Division of Health Systems and Public Health, Department of Global Health, Faculty of Medicine and Health Sciences, Stellenbosch University , Cape Town, South Africa
| | - Anil Amichund Chuturgoon
- 1 Discipline of Medical Biochemistry and Chemical Pathology, Faculty of Health Sciences, Howard College, University of KwaZulu-Natal , Durban, South Africa
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26
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Fujii K, Suzuki N, Jimura N, Idogawa M, Kondo T, Iwatsuki K, Kanekura T. HSP72 functionally inhibits the anti-neoplastic effects of HDAC inhibitors. J Dermatol Sci 2018; 90:82-89. [PMID: 29395577 DOI: 10.1016/j.jdermsci.2018.01.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 12/18/2017] [Accepted: 01/09/2018] [Indexed: 02/02/2023]
Abstract
BACKGROUND The anticancer effects of histone deacetylase inhibitors (HDACi) vary between patients, and their molecular mechanisms remain poorly understood. Previously, we have identified heat shock 70 kDa protein 1A (HSPA1A, also known as HSP72) as the most overexpressed protein in valproic acid (VPA)-resistant cell lines. KNK437, an inhibitor of heat shock proteins, enhanced the cytotoxic effects of not only VPA but also vorinostat, another HDACi. However, the mechanisms underlying the role of HSP72 in resistance against HDACi remain largely unknown. OBJECTIVE The purpose of this study was to identify the mechanisms underlying the role of HSP72 in HDACi resistance. METHODS We established an HSP72-overexpressing Jurkat cell line and used it to assess the functional role of HSP72 following treatment with the HDACi vorinostat and VPA. RESULTS HDACi-induced apoptosis, assessed using annexin V assays, sub-G1 fraction analysis, and PARP cleavage, was significantly lower in HSP72-overexpressing cells than in control cells. The HDACi-induced upregulation in caspase-3, -8, and -9 activity, as well as the HDACi-induced reduction in mitochondrial membrane potential, were also suppressed following HSP72 overexpression. The basal expression levels of Bcl-2, phosphorylated Bad, and XIAP increased in HSP72-overexpressing cells, whereas HDACi-induced Bid truncation and the suppression of Bad expression. Furthermore, vorinostat-induced histone hyperacetylation was also diminished in HSP72-overexpressing cells. CONCLUSION These findings clearly demonstrate that HSP72 inhibits HDACi-induced apoptosis.
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Affiliation(s)
- Kazuyasu Fujii
- Department of Dermatology, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1, Sakuragaoka, Kagoshima, Japan.
| | - Norihiro Suzuki
- Department of Dermatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Nozomi Jimura
- Department of Dermatology, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1, Sakuragaoka, Kagoshima, Japan
| | - Masashi Idogawa
- Department of Medical Genome Sciences, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Tadashi Kondo
- Division of Rare Cancer Research, National Cancer Center Research Institute, Tokyo, Japan
| | - Keiji Iwatsuki
- Department of Dermatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Takuro Kanekura
- Department of Dermatology, Kagoshima University Graduate School of Medical and Dental Sciences, 8-35-1, Sakuragaoka, Kagoshima, Japan
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27
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Zeni O, Simkó M, Scarfi MR, Mattsson MO. Cellular Response to ELF-MF and Heat: Evidence for a Common Involvement of Heat Shock Proteins? Front Public Health 2017; 5:280. [PMID: 29094036 PMCID: PMC5651525 DOI: 10.3389/fpubh.2017.00280] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2017] [Accepted: 10/02/2017] [Indexed: 11/13/2022] Open
Abstract
It has been shown that magnetic fields in the extremely low frequency range (ELF-MF) can act as a stressor in various in vivo or in vitro systems, at flux density levels below those inducing excitation of nerve and muscle cells, which are setting the limits used by most generally accepted exposure guidelines, such as the ones published by the International Commission on Non-Ionizing Radiation Protection. In response to a variety of physiological and environmental factors, including heat, cells activate an ancient signaling pathway leading to the transient expression of heat shock proteins (HSPs), which exhibit sophisticated protection mechanisms. A number of studies suggest that also ELF-MF exposure can activate the cellular stress response and cause increased HSPs expression, both on the mRNA and the protein levels. In this review, we provide some of the presently available data on cellular responses, especially regarding HSP expression, due to single and combined exposure to ELF-MF and heat, with the aim to compare the induced effects and to detect possible common modes of action. Some evidence suggest that MF and heat can act as costressors inducing a kind of thermotolerance in cell cultures and in organisms. The MF exposure might produce a potentiated or synergistic biological response such as an increase in HSPs expression, in combination with a well-defined stress, and in turn exert beneficial effects during certain circumstances.
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Affiliation(s)
- Olga Zeni
- Institute for Electromagnetic Sensing of the Environment (IREA), National Research Council, Naples, Italy
| | | | - Maria Rosaria Scarfi
- Institute for Electromagnetic Sensing of the Environment (IREA), National Research Council, Naples, Italy
| | - Mats-Olof Mattsson
- AIT Austrian Institute of Technology, Center for Energy, Environmental Resources and Technologies, Tulln, Austria
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28
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Mori Y, Terauchi R, Shirai T, Tsuchida S, Mizoshiri N, Arai Y, Kishida T, Fujiwara H, Mazda O, Kubo T. Suppression of heat shock protein 70 by siRNA enhances the antitumor effects of cisplatin in cultured human osteosarcoma cells. Cell Stress Chaperones 2017; 22:699-706. [PMID: 28466152 PMCID: PMC5573688 DOI: 10.1007/s12192-017-0793-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Revised: 03/25/2017] [Accepted: 03/28/2017] [Indexed: 12/30/2022] Open
Abstract
Although advances in chemotherapy have improved the prognosis for osteosarcoma, some patients do not respond sufficiently to treatment. Heat shock protein 70 (Hsp70) is expressed at high levels in cancer cells and attenuates the therapeutic efficacy of anticancer agents, resulting in a poorer prognosis. This study investigated whether small interfering RNA (siRNA)-mediated inhibition of Hsp70 expression in an osteosarcoma cell line would enhance sensitivity to cisplatin. The expression of Hsp70 with cisplatin treatment was observed by using Western blotting and real-time reverse transcription polymerase chain reaction (RT-PCR). Changes in the IC50 of cisplatin when Hsp70 was inhibited by siRNA were evaluated. Cisplatin's effectiveness in inducing apoptosis was assessed by assay of terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling (TUNEL), caspase-3 activity, and mitochondrial membrane potential. Up-regulation of Hsp70 expression was dependent on the concentration of cisplatin. Inhibition of Hsp70 expression significantly reduced the IC50 of cisplatin. When cisplatin was added to osteosarcoma cells with Hsp70 expression inhibited, a significant increase in apoptosis was demonstrated in TUNEL, caspase-3, and mitochondrial membrane potential assays. Inhibition of Hsp70 expression induced apoptosis in cultured osteosarcoma cells, indicating that Hsp70 inhibition enhanced sensitivity to cisplatin. Inhibition of Hsp70 expression may provide a new adjuvant therapy for osteosarcoma.
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Affiliation(s)
- Yuki Mori
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Ryu Terauchi
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Toshiharu Shirai
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan.
| | - Shinji Tsuchida
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Naoki Mizoshiri
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Yuji Arai
- Department of Sports and Para-Sports Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Tsunao Kishida
- Department of Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Hiroyoshi Fujiwara
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Osam Mazda
- Department of Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan
| | - Toshikazu Kubo
- Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan
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Zheng HC. The molecular mechanisms of chemoresistance in cancers. Oncotarget 2017; 8:59950-59964. [PMID: 28938696 PMCID: PMC5601792 DOI: 10.18632/oncotarget.19048] [Citation(s) in RCA: 421] [Impact Index Per Article: 60.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 06/24/2017] [Indexed: 12/11/2022] Open
Abstract
Overcoming intrinsic and acquired drug resistance is a major challenge in treating cancer patients because chemoresistance causes recurrence, cancer dissemination and death. This review summarizes numerous molecular aspects of multi-resistance, including transporter pumps, oncogenes (EGFR, PI3K/Akt, Erk and NF-κB), tumor suppressor gene (p53), mitochondrial alteration, DNA repair, autophagy, epithelial-mesenchymal transition (EMT), cancer stemness, and exosome. The chemoresistance-related proteins are localized to extracellular ligand, membrane receptor, cytosolic signal messenger, and nuclear transcription factors for various events, including proliferation, apoptosis, EMT, autophagy and exosome. Their cross-talk frequently appears, such as the regulatory effects of EGFR-Akt-NF-κB signal pathway on the transcription of Bcl-2, Bcl-xL and survivin or EMT-related stemness. It is essential for the realization of the target, individualized and combine therapy to clarify these molecular mechanisms, explore the therapy target, screen chemosensitive population, and determine the efficacy of chemoreagents by cell culture and orthotopic model.
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Affiliation(s)
- Hua-Chuan Zheng
- Department of Experimental Oncology and Animal Center, Shengjing Hospital of China Medical University, Shenyang 110004, China
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30
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Khairy Abd M, Abu-Bakr H A. Radiosensitizing Efficacy of Diosmin- Hesperidin Complex Against Ehrlich Solid Carcinoma in Mice, A Potential Role of Histone Deacetylase and Pro-angiogenic Chaperones Targeting. INTERNATIONAL JOURNAL OF CANCER RESEARCH 2017; 13:59-70. [DOI: 10.3923/ijcr.2017.59.70] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Creation of an apoptin-derived peptide that interacts with SH3 domains and inhibits glioma cell migration and invasion. Tumour Biol 2016; 37:15229-15240. [PMID: 27686608 DOI: 10.1007/s13277-016-5404-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Accepted: 09/13/2016] [Indexed: 01/09/2023] Open
Abstract
Glioblastoma multiforme (GBM) is an aggressive tumor of the central nervous system characterized by high rates of recurrence, morbidity, and mortality. This study investigated the antitumor effects of an apoptin-derived peptide (ADP) on glioma cells and explored the underlying mechanisms. The U251, U87, and C6 glioma cell lines were used in the present study, and the expression of p-Akt, Akt, and MMP-9 was determined through Western blotting, quantitative real-time PCR, and hematoxylin and eosin (HE) staining. Tumor growth was evaluated by magnetic resonance imaging, and cell viability was assessed through an 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide MTT assay. Glioma cell metastasis was evaluated using transwell migration, invasion, and scratch-wound assays. An ADP was designed and synthesized based on the results of a domain-based analysis of the structure of apoptin. The ADP inhibited glioma cell viability, invasion and migration, and treatment with the synthesized ADP led to downregulation of p-Akt and MMP-9 and inhibited MMP-9 translation. The ADP also inhibited glioma invasion and migration in vivo, and HE staining showed decreases in the satellite-like invasion of cell masses and apoptotic cell populations after treatment with the ADP. Our findings demonstrate that treatment with an ADP can suppress glioma cell migration and invasion via the PI3K/Akt/MMP-9 signaling pathway and provide a new platform for the development of drugs for treating glioma.
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Chuffa LGA, Lupi Júnior LA, Seiva FRF, Martinez M, Domeniconi RF, Pinheiro PFF, dos Santos LD, Martinez FE. Quantitative Proteomic Profiling Reveals That Diverse Metabolic Pathways Are Influenced by Melatonin in an in Vivo Model of Ovarian Carcinoma. J Proteome Res 2016; 15:3872-3882. [DOI: 10.1021/acs.jproteome.6b00713] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Luiz Gustavo A. Chuffa
- Department
of Anatomy, Institute of Biosciences, UNESP − Universidade Estadual Paulista, Botucatu, São Paulo, Brazil
| | - Luiz Antonio Lupi Júnior
- Department
of Anatomy, Institute of Biosciences, UNESP − Universidade Estadual Paulista, Botucatu, São Paulo, Brazil
| | - Fábio R. F. Seiva
- Institute
of Biology, North of Parana State University − UENP, CLM, Bandeirantes, Paraná, Brazil
| | - Marcelo Martinez
- Department
of Morphology and Pathology, UFSCar − Universidade Federal de São Carlos, São Carlos, São Paulo, Brazil
| | - Raquel F. Domeniconi
- Department
of Anatomy, Institute of Biosciences, UNESP − Universidade Estadual Paulista, Botucatu, São Paulo, Brazil
| | - Patricia Fernanda F. Pinheiro
- Department
of Anatomy, Institute of Biosciences, UNESP − Universidade Estadual Paulista, Botucatu, São Paulo, Brazil
| | - Lucilene D. dos Santos
- Center
for the Study of Venoms and Venomous Animals (CEVAP), UNESP - Univ Estadual Paulista, Botucatu, São Paulo, Brazil
| | - Francisco Eduardo Martinez
- Department
of Anatomy, Institute of Biosciences, UNESP − Universidade Estadual Paulista, Botucatu, São Paulo, Brazil
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Yeap SK, Abu N, Akthar N, Ho WY, Ky H, Tan SW, Alitheen NB, Kamarul T. Gene Expression Analysis Reveals the Concurrent Activation of Proapoptotic and Antioxidant-Defensive Mechanisms in Flavokawain B-Treated Cervical Cancer HeLa Cells. Integr Cancer Ther 2016; 16:373-384. [PMID: 27458249 PMCID: PMC5759947 DOI: 10.1177/1534735416660383] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Flavokawain B (FKB) is known to possess promising anticancer abilities. This is demonstrated in various cancer cell lines including HeLa cells. Cervical cancer is among the most widely diagnosed cancer among women today. Though FKB has been shown to be effective in treating cancer cells, the exact molecular mechanism is still unknown. This study is aimed at understanding the effects of FKB on HeLa cells using a microarray-based mRNA expression profiling and proteome profiling of stress-related proteins. The results of this study suggest that FKB induced cell death through p21-mediated cell cycle arrest and activation of p38. However, concurrent activation of antioxidant-related pathways and iron sequestration pathway followed by activation of ER-resident stress proteins clearly indicate that FKB failed to induce apoptosis in HeLa cells via oxidative stress. This effect implies that the protection of HeLa cells by FKB from H2O2–induced cell death is via neutralization of reactive oxygen species.
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Affiliation(s)
| | - Nadiah Abu
- 1 Universiti Putra Malaysia, Serdang, Selangor, Malaysia.,2 Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
| | - Nadeem Akthar
- 3 Universiti Malaysia Pahang, LebuhrayaTunRazak, Kuantan, Pahang
| | - Wan Yong Ho
- 4 The University of Nottingham Malaysia Campus, JalanBroga, Semenyih, Selangor, Malaysia
| | - Huynh Ky
- 5 Cantho University, CanTho City, Vietnam
| | - Sheau Wei Tan
- 1 Universiti Putra Malaysia, Serdang, Selangor, Malaysia
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Takahashi K, Tanaka M, Yashiro M, Matsumoto M, Ohtsuka A, Nakayama KI, Izumi Y, Nagayama K, Miura K, Iwao H, Shiota M. Protection of stromal cell-derived factor 2 by heat shock protein 72 prevents oxaliplatin-induced cell death in oxaliplatin-resistant human gastric cancer cells. Cancer Lett 2016; 378:8-15. [PMID: 27157913 DOI: 10.1016/j.canlet.2016.05.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Revised: 05/02/2016] [Accepted: 05/03/2016] [Indexed: 01/03/2023]
Abstract
Heat shock protein 72 (Hsp72) is a molecular chaperone that assists in the folding of nascent polypeptides and in the refolding of denatured proteins. In many cancers, Hsp72 is constitutively expressed at elevated levels, which can result in enhanced stress tolerance. Similarly, following treatment with anticancer drugs, Hsp72 binds to denatured proteins that may be essential for survival. We therefore hypothesized that Hsp72 client proteins may play a crucial role in drug resistance. Here, we aimed to identify proteins that are critical for oxaliplatin (OXA) resistance by analyzing human gastric cancer cell lines, as well as OXA-resistant cells via a mass spectrometry-based proteomic approach combined with affinity purification using anti-Hsp72 antibodies. Stromal cell-derived factor 2 (SDF-2) was identified as an Hsp72 client protein unique to OCUM-2M/OXA cells. SDF-2 was overexpressed in OXA-resistant cells and SDF-2 silencing promoted the apoptotic effects of OXA. Furthermore, Hsp72 prevented SDF-2 degradation in a chaperone activity-dependent manner. Together, our data demonstrate that Hsp72 protected SDF-2 to avoid OXA-induced cell death. We propose that inhibition of SDF-2 may comprise a novel therapeutic strategy to counteract OXA-resistant cancers.
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Affiliation(s)
- Katsuyuki Takahashi
- Department of Pharmacology, Osaka City University Medical School, Osaka, Japan; Department of Pharmacy, Osaka City University Hospital, Osaka, Japan
| | - Masako Tanaka
- Applied Pharmacology and Therapeutics, Osaka City University Medical School, Osaka, Japan
| | - Masakazu Yashiro
- Oncology Institute of Geriatrics and Medical Science, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Masaki Matsumoto
- Department of Molecular and Cellular Biology, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | - Asuka Ohtsuka
- Applied Pharmacology and Therapeutics, Osaka City University Medical School, Osaka, Japan
| | - Keiichi I Nakayama
- Department of Molecular and Cellular Biology, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | - Yasukatsu Izumi
- Department of Pharmacology, Osaka City University Medical School, Osaka, Japan
| | - Katsuya Nagayama
- Department of Pharmacy, Osaka City University Hospital, Osaka, Japan
| | - Katsuyuki Miura
- Department of Pharmacology, Osaka City University Medical School, Osaka, Japan; Applied Pharmacology and Therapeutics, Osaka City University Medical School, Osaka, Japan
| | - Hiroshi Iwao
- Department of Pharmacology, Osaka City University Medical School, Osaka, Japan
| | - Masayuki Shiota
- Department of Pharmacology, Osaka City University Medical School, Osaka, Japan.
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Radons J. The human HSP70 family of chaperones: where do we stand? Cell Stress Chaperones 2016; 21:379-404. [PMID: 26865365 PMCID: PMC4837186 DOI: 10.1007/s12192-016-0676-6] [Citation(s) in RCA: 358] [Impact Index Per Article: 44.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Revised: 01/29/2016] [Accepted: 01/29/2016] [Indexed: 01/23/2023] Open
Abstract
The 70-kDa heat shock protein (HSP70) family of molecular chaperones represents one of the most ubiquitous classes of chaperones and is highly conserved in all organisms. Members of the HSP70 family control all aspects of cellular proteostasis such as nascent protein chain folding, protein import into organelles, recovering of proteins from aggregation, and assembly of multi-protein complexes. These chaperones augment organismal survival and longevity in the face of proteotoxic stress by enhancing cell viability and facilitating protein damage repair. Extracellular HSP70s have a number of cytoprotective and immunomodulatory functions, the latter either in the context of facilitating the cross-presentation of immunogenic peptides via major histocompatibility complex (MHC) antigens or in the context of acting as "chaperokines" or stimulators of innate immune responses. Studies have linked the expression of HSP70s to several types of carcinoma, with Hsp70 expression being associated with therapeutic resistance, metastasis, and poor clinical outcome. In malignantly transformed cells, HSP70s protect cells from the proteotoxic stress associated with abnormally rapid proliferation, suppress cellular senescence, and confer resistance to stress-induced apoptosis including protection against cytostatic drugs and radiation therapy. All of the cellular activities of HSP70s depend on their adenosine-5'-triphosphate (ATP)-regulated ability to interact with exposed hydrophobic surfaces of proteins. ATP hydrolysis and adenosine diphosphate (ADP)/ATP exchange are key events for substrate binding and Hsp70 release during folding of nascent polypeptides. Several proteins that bind to distinct subdomains of Hsp70 and consequently modulate the activity of the chaperone have been identified as HSP70 co-chaperones. This review focuses on the regulation, function, and relevance of the molecular Hsp70 chaperone machinery to disease and its potential as a therapeutic target.
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Affiliation(s)
- Jürgen Radons
- Scientific Consulting International, Mühldorfer Str. 64, 84503, Altötting, Germany.
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Qin Y, Sun Y, Liu Y, Luo Y, Zhu J. Pilot study of radiofrequency hyperthermia in combination with gefitinib in gefitinib-effective patients with advanced NSCLC. Thorac Cancer 2016; 7:422-7. [PMID: 27385984 PMCID: PMC4930961 DOI: 10.1111/1759-7714.12346] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Accepted: 02/06/2016] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Non-small-cell lung cancer (NSCLC) is the leading cause of death from cancer in China. Gefitinib is effective for patients with positive epidermal growth factor receptor gene mutation; however, acquired drug resistance counteracts the duration response. Hyperthermia is widely clinically applied in the treatment of solid tumors. This pilot study was designed to evaluate the feasibility of the combination of gefitinib and hyperthermia. METHODS Patients newly diagnosed with advanced NSCLC were screened. Eleven patients who responded to first-line gefitinib treatment were enrolled in the study. Along with 250 mg gefitinib daily, local radiofrequency hyperthermia was administered twice a week until tumor progression was observed. The serum, heat shock protein (HSP)70, was also frequently detected during the course. RESULTS The most common toxicity included skin rash (81.8%) and abnormal liver function (45.5%) when treated with gefitinib, and fatty scleroma (36.4%) was observed when combined with hyperthermia. Grade 3 side effects (skin rash) occurred in only one patient. Median progression-free survival was 22 months (95% confidence interval [CI]: 12.95-31.05 months) and median overall survival was 26 months (95% CI: 22.81-29.19 months). Serum HSP70 concentration increased and maintained a significantly high level compared with the baseline before hyperthermia administration. CONCLUSIONS The novel therapy of gefitinib combined with radiofrequency hyperthermia is safe and effective for advanced NSCLC patients. Whether an improvement in therapeutic efficacy is associated with the elevation of serum HSP70 concentration requires further study.
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Affiliation(s)
- Yijia Qin
- West China School of Medicine Sichuan University Chengdu China
| | - Yu Sun
- Department of Radiation Oncology West China Hospital, Sichuan University Chengdu China
| | - Yongmei Liu
- Department of Thoracic Oncology West China Hospital, Sichuan University Chengdu China
| | - Yiqiao Luo
- West China School of Medicine Sichuan University Chengdu China
| | - Jiang Zhu
- Department of Thoracic Oncology West China Hospital, Sichuan University Chengdu China
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Kim J, Lim H, Kim S, Cho H, Kim Y, Li X, Choi H, Kim O. Effects of HSP27 downregulation on PDT resistance through PDT-induced autophagy in head and neck cancer cells. Oncol Rep 2016; 35:2237-45. [PMID: 26820233 DOI: 10.3892/or.2016.4597] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Accepted: 11/05/2015] [Indexed: 11/06/2022] Open
Abstract
We previously reported that photodynamic therapy (PDT) induces cell death in head and neck cancer through both autophagy and apoptosis. Regulation of cell death by autophagy and apoptosis is important to enhance the effects of PDT. Autophagy maintains a balance between cell death and PDT resistance. Downregulation of heat shock protein 27 (HSP27) induces PDT resistance in head and neck cancer cells. Furthermore, HSP70 regulates apoptosis during oxidative stress. However, the role of HSPs in PDT-induced cell death through autophagy and apoptosis is unclear. Therefore, in the present study, we investigated the effects of HSP27 and HSP70 on PDT-induced cell death of oral cancer cells through autophagy and apoptosis. Cancer cells were treated with hematoporphyrin at varying doses, followed by irradiation at 635 nm with an energy density of 5 mW/cm2. We determined the changes in HSP expression by determining the levels of PARP-1 and LC3II in PDT-resistant cells. Furthermore, we assessed cell death signaling after downregulating HSPs by transfecting specific siRNAs. We observed that PDT decreased HSP27 expression but increased HSP70 expression in the head and neck cancer cells. Treatment of cells with LC3II and PARP-1 inhibitors resulted in upregulation of HSP70 and HSP27 expression, respectively. Downregulation of HSP27 and HSP70 induced cell death and PDT resistance through autophagy and apoptosis. Moreover, downregulation of HSP27 in PDT-resistant cells resulted in enhanced survival. These results indicate that the regulation of HSP27 and HSP70 plays a principal role in increasing the effects of PDT by inducing autophagic and apoptotic cell death.
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Affiliation(s)
- Jisun Kim
- Department of Oral Pathology, Dental Science Research Institute and Medical Research Center for Biomineralization Disorders, School of Dentistry, Chonnam National University, Gwangju 500-757, Republic of Korea
| | - Haesoon Lim
- Department of Oral Pathology, Dental Science Research Institute and Medical Research Center for Biomineralization Disorders, School of Dentistry, Chonnam National University, Gwangju 500-757, Republic of Korea
| | - Sangwoo Kim
- Department of Oral Pathology, Dental Science Research Institute and Medical Research Center for Biomineralization Disorders, School of Dentistry, Chonnam National University, Gwangju 500-757, Republic of Korea
| | - Hyejung Cho
- Department of Oral Pathology, Dental Science Research Institute and Medical Research Center for Biomineralization Disorders, School of Dentistry, Chonnam National University, Gwangju 500-757, Republic of Korea
| | - Yong Kim
- Department of Oral Pathology, Dental Science Research Institute and Medical Research Center for Biomineralization Disorders, School of Dentistry, Chonnam National University, Gwangju 500-757, Republic of Korea
| | - Xiaojie Li
- College of Stomatology, Dalian Medical University, Dalian, Liaoning 116044, P.R. China
| | - Hongran Choi
- Department of Oral Pathology, Dental Science Research Institute and Medical Research Center for Biomineralization Disorders, School of Dentistry, Chonnam National University, Gwangju 500-757, Republic of Korea
| | - Okjoon Kim
- Department of Oral Pathology, Dental Science Research Institute and Medical Research Center for Biomineralization Disorders, School of Dentistry, Chonnam National University, Gwangju 500-757, Republic of Korea
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Mesenchymal stem cells maintain their defining stem cell characteristics after treatment with cisplatin. Sci Rep 2016; 6:20035. [PMID: 26805490 PMCID: PMC4726328 DOI: 10.1038/srep20035] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 12/23/2015] [Indexed: 12/11/2022] Open
Abstract
Mesenchymal stem cells (MSCs) aid the regeneration of tissues damaged by treatment with cisplatin. However, the effects of this cytotoxic drug on the stem cells have been largely unknown. Here we demonstrate that human bone marrow-derived MSCs are relatively resistant to cisplatin treatment and show resistance levels comparable to these of differentiated fibroblasts. Cisplatin did not affect cellular morphology, adhesion or induction of apoptosis in MSCs. The potential for differentiation was preserved after exposure to cisplatin, and established MSC surface markers were observed to be stably expressed irrespective of cisplatin treatment. Cytoskeletal rearrangements and high expression levels of individual heat shock proteins were detected in MSCs and may be partly responsible for the observed cisplatin resistance. The cisplatin-resistant phenotype of human MSCs supports the concept of further investigating these stem cells as a potential treatment option for cisplatin-induced tissue damage.
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Jiang L, Kwong DLW, Li Y, Liu M, Yuan YF, Li Y, Fu L, Guan XY. HBP21, a chaperone of heat shock protein 70, functions as a tumor suppressor in hepatocellular carcinoma. Carcinogenesis 2015; 36:1111-20. [PMID: 26246424 DOI: 10.1093/carcin/bgv116] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Accepted: 07/29/2015] [Indexed: 12/27/2022] Open
Abstract
Inactivation of tumor suppressor genes, caused by genetic and epigenetic alterations, is one of the key issues in the development and progression of cancer. To identify and characterize cancer related genes in hepatocellular carcinoma (HCC) pathogenesis, transcriptome sequencing has been applied to compare expression profiles between tumor and non-tumor tissues. Among the down-regulated genes, heat shock binding protein 21 (HBP21) was selected for further study. In this study, down-regulation of HBP21 was frequently detected in primary HCCs (87/120, 72.5%), which was significantly associated with advanced clinical stage (P = 0.049), poor differentiation (P = 0.018) and poor prognosis (P = 0.026). Further study found that down-regulation of HBP21 in HCC was mainly caused by allele loss and promoter methylation. Functional study found that HBP21 could inhibit tumor cell growth rate, foci formation and colony formation in soft agar, and tumor formation in nude mice when it was transfected into HCC cells. Molecular study found that HBP21 could promote cell apoptosis, especially under adverse conditions such as heat and chemotherapeutic agent treatment. As a chaperone of heat shock protein 70 (HSP70), HBP21 could inhibit interaction between HSP70 and Bax, increased Bax protein translocation from cytoplasm to mitochondria, and subsequently increased the release of cytochrome c into cytoplasm, and finally induced apoptosis. Clinically, HBP21 could be used as a prognostic biomarker for HCC outcome prediction and might be also as a novel therapeutic agent in HCC treatment.
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Affiliation(s)
- Lingxi Jiang
- Department of Clinical Oncology, State Key Laboratory for Liver Research, Center for Cancer Research, The University of Hong Kong, Hong Kong, China
| | | | - Yan Li
- Department of Clinical Oncology, State Key Laboratory for Liver Research, Center for Cancer Research, The University of Hong Kong, Hong Kong, China
| | - Ming Liu
- Department of Clinical Oncology, State Key Laboratory for Liver Research, Center for Cancer Research, The University of Hong Kong, Hong Kong, China
| | - Yun-Fei Yuan
- State Key Laboratory of Oncology in Southern China, Sun Yat-sen University Cancer Center, Guangzhou 510060, China and
| | - Yan Li
- State Key Laboratory of Oncology in Southern China, Sun Yat-sen University Cancer Center, Guangzhou 510060, China and
| | - Li Fu
- Shenzhen Key Laboratory of translational Medicine of Tumor and Cancer Research Centre, School of Medicine, Shenzhen University, Shenzhen 518060, China
| | - Xin-Yuan Guan
- Department of Clinical Oncology, State Key Laboratory for Liver Research, Center for Cancer Research, The University of Hong Kong, Hong Kong, China, State Key Laboratory of Oncology in Southern China, Sun Yat-sen University Cancer Center, Guangzhou 510060, China and
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Murakami N, Kühnel A, Schmid TE, Ilicic K, Stangl S, Braun IS, Gehrmann M, Molls M, Itami J, Multhoff G. Role of membrane Hsp70 in radiation sensitivity of tumor cells. Radiat Oncol 2015. [PMID: 26197988 PMCID: PMC4511458 DOI: 10.1186/s13014-015-0461-1] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The major stress-inducible heat shock protein 70 (Hsp70) is frequently overexpressed in the cytosol and integrated in the plasma membrane of tumor cells via lipid anchorage. Following stress such as non-lethal irradiation Hsp70 synthesis is up-regulated. Intracellular located Hsp70 is known to exert cytoprotective properties, however, less is known about membrane (m)Hsp70. Herein, we investigate the role of mHsp70 in the sensitivity towards irradiation in tumor sublines that differ in their cytosolic and/or mHsp70 levels. METHODS The isogenic human colon carcinoma sublines CX(+) with stable high and CX(-) with stable low expression of mHsp70 were generated by fluorescence activated cell sorting, the mouse mammary carcinoma sublines 4 T1 (4 T1 ctrl) and Hsp70 knock-down (4 T1 Hsp70 KD) were produced using the CRISPR/Cas9 system, and the Hsp70 down-regulation in human lung carcinoma sublines H1339 ctrl/H1339 HSF-1 KD and EPLC-272H ctrl/EPLC-272H HSF-1 KD was achieved by small interfering (si)RNA against Heat shock factor 1 (HSF-1). Cytosolic and mHsp70 was quantified by Western blot analysis/ELISA and flow cytometry; double strand breaks (DSBs) and apoptosis were measured by flow cytometry using antibodies against γH2AX and real-time PCR (RT-PCR) using primers and antibodies directed against apoptosis related genes; and radiation sensitivity was determined using clonogenic cell surviving assays. RESULTS CX(+)/CX(-) tumor cells exhibited similar cytosolic but differed significantly in their mHsp70 levels, 4 T1 ctrl/4 T1 Hsp70 KD cells showed significant differences in their cytosolic and mHsp70 levels and H1339 ctrl/H1339 HSF-1 KD and EPLC-272H ctrl/EPLC-272H HSF-1 KD lung carcinoma cell sublines had similar mHsp70 but significantly different cytosolic Hsp70 levels. γH2AX was significantly up-regulated in irradiated CX(-) and 4 T1 Hsp70 KD with low basal mHsp70 levels, but not in their mHsp70 high expressing counterparts, irrespectively of their cytosolic Hsp70 content. After irradiation γH2AX, Caspase 3/7 and Annexin V were up-regulated in the lung carcinoma sublines, but no significant differences were observed in H1339 ctrl/H1339 HSF-1 KD, and EPLC-272H ctrl/EPLC-272H HSF-1 KD that exhibit identical mHsp70 but different cytosolic Hsp70 levels. Clonogenic cell survival was significantly lower in CX(-) and 4 T1 Hsp70 KD cells with low mHsp70 expression, than in CX+ and 4 T1 ctrl cells, whereas no difference in clonogenic cell survival was observed in H1339 ctrl/H1339 HSF-1 KD and EPLC-272H ctrl/ EPLC-272H HSF-1 KD sublines with identical mHsp70 but different cytosolic Hsp70 levels. CONCLUSION In summary, our results indicate that mHsp70 has an impact on radiation resistance.
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Affiliation(s)
- Naoya Murakami
- Department of Radiation Oncology, Klinikum rechts der Isar, Technische Universität München, Munich, Germany.,Department of Radiation Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Annett Kühnel
- Department of Radiation Oncology, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Thomas E Schmid
- Department of Radiation Oncology, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Katarina Ilicic
- Department of Radiation Oncology, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Stefan Stangl
- Department of Radiation Oncology, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Isabella S Braun
- Department of Radiation Oncology, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Mathias Gehrmann
- Department of Radiation Oncology, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Michael Molls
- Department of Radiation Oncology, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Jun Itami
- Department of Radiation Oncology, National Cancer Center Hospital, Tokyo, Japan
| | - Gabriele Multhoff
- Department of Radiation Oncology, Klinikum rechts der Isar, Technische Universität München, Munich, Germany. .,Clinical Cooperation Group - Innate Immunity in Tumor Biology, Institute of Biomedical Imaging (IBMI), Helmholtz Zentrum München, Munich, Germany.
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Vydra N, Toma A, Widlak W. Pleiotropic role of HSF1 in neoplastic transformation. Curr Cancer Drug Targets 2015; 14:144-55. [PMID: 24467529 PMCID: PMC4435066 DOI: 10.2174/1568009614666140122155942] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2013] [Revised: 01/06/2014] [Accepted: 01/22/2014] [Indexed: 01/13/2023]
Abstract
HSF1 (Heat Shock transcription Factor 1) is the main transcription factor activated in response to proteotoxic stress. Once activated, it induces an expression of heat shock proteins (HSPs) which enables cells to survive in suboptimal conditions. HSF1 could be also activated by altered kinase signaling characteristic for cancer cells, which is a probable reason for its high activity found in a broad range of tumors. There is rapidly growing evidence that HSF1 supports tumor initiation and growth, as well as metastasis and angiogenesis. It also modulates the sensitivity of cancer cells to therapy. Functions of HSF1 in cancer are connected with HSPs’ activity, which generally protects cells from apoptosis, but also are independent of its classical targets. HSF1-dependent regulation of non-HSPs genes plays a role in cell cycle
progression, glucose metabolism, autophagy and drug efflux. HSF1 affects the key cell-survival and regulatory pathways, including p53, RAS/MAPK, cAMP/PKA, mTOR and insulin signaling. Although the exact mechanism of HSF1 action is still somewhat obscure, HSF1 is becoming an attractive target in anticancer therapies, whose inhibition could enhance the effects of other treatments.
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Affiliation(s)
| | | | - Wieslawa Widlak
- Cancer Center and Institute of Oncology, Gliwice Branch, Wybrzeze Armii Krajowej 15, 44-101 Gliwice, Poland.
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Zeng Y, Cao R, Zhang T, Li S, Zhong W. Design and synthesis of piperidine derivatives as novel human heat shock protein 70 inhibitors for the treatment of drug-resistant tumors. Eur J Med Chem 2015; 97:19-31. [DOI: 10.1016/j.ejmech.2015.04.043] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Revised: 04/13/2015] [Accepted: 04/18/2015] [Indexed: 12/16/2022]
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Abstract
Heat shock proteins are molecular chaperones with a central role in protein folding and cellular protein homeostasis. They also play major roles in the development of cancer and in recent years have emerged as promising therapeutic targets. In this review, we discuss the known molecular mechanisms of various heat shock protein families and their involvement in cancer and in particular, multiple myeloma. In addition, we address the current progress and challenges in pharmacologically targeting these proteins as anti-cancer therapeutic strategies.
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Baker AF, Hanke NT, Sands BJ, Carbajal L, Anderl JL, Garland LL. Carfilzomib demonstrates broad anti-tumor activity in pre-clinical non-small cell and small cell lung cancer models. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2014; 33:111. [PMID: 25612802 PMCID: PMC4304157 DOI: 10.1186/s13046-014-0111-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Accepted: 12/11/2014] [Indexed: 01/05/2023]
Abstract
BACKGROUND Carfilzomib (CFZ) is a proteasome inhibitor that selectively and irreversibly binds to its target and has been approved in the US for treatment of relapsed and refractory multiple myeloma. Phase 1B studies of CFZ reported signals of clinical activity in solid tumors, including small cell lung cancer (SCLC). The aim of this study was to investigate the activity of CFZ in lung cancer models. METHODS A diverse panel of human lung cancer cell lines and a SHP77 small cell lung cancer xenograft model were used to investigate the anti-tumor activity of CFZ. RESULTS CFZ treatment inhibited both the constitutive proteasome and the immunoproteasome in lung cancer cell lines. CFZ had marked anti-proliferative activity in A549, H1993, H520, H460, and H1299 non-small cell lung cancer (NSCLC) cell lines, with IC50 values after 96 hour exposure from <1.0 nM to 36 nM. CFZ had more variable effects in the SHP77 and DMS114 SCLC cell lines, with IC50 values at 96 hours from <1 nM to 203 nM. Western blot analysis of CFZ-treated H1993 and SHP77 cells showed cleavage of poly ADP ribose polymerase (PARP) and caspase-3, indicative of apoptosis, and induction of microtubule-associated protein-1 light chain-3B (LC3B), indicative of autophagy. In SHP77 flank xenograft tumors, CFZ monotherapy inhibited tumor growth and prolonged survival, while no additive or synergistic anti-tumor efficacy was observed for CFZ + cisplatin (CDDP). CONCLUSIONS CFZ demonstrated anti-proliferative activity in lung cancer cell lines in vitro and resulted in a significant survival advantage in mice with SHP77 SCLC xenografts, supporting further pre-clinical and clinical investigations of CFZ in NSCLC and SCLC.
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Affiliation(s)
- Amanda F Baker
- University of Arizona Cancer Center, College of Medicine, Section of Hematology/Oncology, 1515 N Campbell Ave, Tucson, AZ, USA.
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Identification of an allosteric small-molecule inhibitor selective for the inducible form of heat shock protein 70. ACTA ACUST UNITED AC 2014; 21:1648-59. [PMID: 25500222 DOI: 10.1016/j.chembiol.2014.10.016] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Revised: 10/20/2014] [Accepted: 10/30/2014] [Indexed: 11/23/2022]
Abstract
Inducible Hsp70 (Hsp70i) is overexpressed in a wide spectrum of human tumors, and its expression correlates with metastasis, poor outcomes, and resistance to chemotherapy in patients. Identification of small-molecule inhibitors selective for Hsp70i could provide new therapeutic tools for cancer treatment. In this work, we used fluorescence-linked enzyme chemoproteomic strategy (FLECS) to identify HS-72, an allosteric inhibitor selective for Hsp70i. HS-72 displays the hallmarks of Hsp70 inhibition in cells, promoting substrate protein degradation and growth inhibition. Importantly, HS-72 is selective for Hsp70i over the closely related constitutively active Hsc70. Studies with purified protein show HS-72 acts as an allosteric inhibitor, reducing ATP affinity. In vivo HS-72 is well-tolerated, showing bioavailability and efficacy, inhibiting tumor growth and promoting survival in a HER2+ model of breast cancer. The HS-72 scaffold is amenable to resynthesis and iteration, suggesting an ideal starting point for a new generation of anticancer therapeutics targeting Hsp70i.
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Zhang L, Gan W, An G. Influence of Tanshinone IIa on heat shock protein 70, Bcl-2 and Bax expression in rats with spinal ischemia/reperfusion injury. Neural Regen Res 2014; 7:2882-8. [PMID: 25317140 PMCID: PMC4190946 DOI: 10.3969/j.issn.1673-5374.2012.36.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2012] [Accepted: 06/18/2012] [Indexed: 12/04/2022] Open
Abstract
Tanshinone IIa is an effective monomer component of Danshen, which is a traditional Chinese medicine for activating blood circulation to dissipate blood stasis. Tanshinone IIa can effectively improve brain tissue ischemia/hypoxia injury. The present study established a rat model of spinal cord ischemia/reperfusion injury and intraperitoneally injected Tanshinone IIa, 0.5 hour prior to model establishment. Results showed that Tanshinone IIa promoted heat shock protein 70 and Bcl-2 protein expression, but inhibited Bax protein expression in the injured spinal cord after ischemia/reperfusion injury. Furthermore, Nissl staining indicated a reduction in nerve cell apoptosis and fewer pathological lesions in the presence of Tanshinone IIa, compared with positive control Danshen injection.
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Affiliation(s)
- Li Zhang
- School of Traumatology and Orthopedics, Fujian University of Traditional Chinese Medicine, Fuzhou 350108, Fujian Province, China
| | - Weidong Gan
- School of Traumatology and Orthopedics, Fujian University of Traditional Chinese Medicine, Fuzhou 350108, Fujian Province, China
| | - Guoyao An
- School of Traumatology and Orthopedics, Fujian University of Traditional Chinese Medicine, Fuzhou 350108, Fujian Province, China
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Bellaye PS, Burgy O, Causse S, Garrido C, Bonniaud P. Heat shock proteins in fibrosis and wound healing: Good or evil? Pharmacol Ther 2014; 143:119-32. [DOI: 10.1016/j.pharmthera.2014.02.009] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2014] [Accepted: 01/06/2014] [Indexed: 12/22/2022]
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Wang X, Chen M, Zhou J, Zhang X. HSP27, 70 and 90, anti-apoptotic proteins, in clinical cancer therapy (Review). Int J Oncol 2014; 45:18-30. [PMID: 24789222 DOI: 10.3892/ijo.2014.2399] [Citation(s) in RCA: 185] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2013] [Accepted: 02/27/2014] [Indexed: 12/16/2022] Open
Abstract
Among the heat shock proteins (HSP), HSP27, HSP70 and HSP90 are the most studied stress-inducible HSPs, and are induced in response to a wide variety of physiological and environmental insults, thus allowing cells to survive to lethal conditions based on their powerful cytoprotective functions. Different functions of HSPs have been described to explain their cytoprotective functions, including their most basic role as molecular chaperones, that is to regulate protein folding, transport, translocation and assembly, especially helping in the refolding of misfolded proteins, as well as their anti-apoptotic properties. In cancer cells, the expression and/or activity of the three HSPs is abnormally high, and is associated with increased tumorigenicity, metastatic potential of cancer cells and resistance to chemotherapy. Associating with key apoptotic factors, they are powerful anti-apoptotic proteins, having the capacity to block the cell death process at different levels. Altogether, the properties suggest that HSP27, HSP70 and HSP90 are appropriate targets for modulating cell death pathways. In this review, we summarize the role of HSP90, HSP70 and HSP27 in apoptosis and the emerging strategies that have been developed for cancer therapy based on the inhibition of the three HSPs.
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Affiliation(s)
- Xiaoxia Wang
- College of Basic Medicine, Nanjing University of Chinese Medicine, Nanjing 210046, P.R. China
| | - Meijuan Chen
- College of Basic Medicine, Nanjing University of Chinese Medicine, Nanjing 210046, P.R. China
| | - Jing Zhou
- College of Basic Medicine, Nanjing University of Chinese Medicine, Nanjing 210046, P.R. China
| | - Xu Zhang
- College of Basic Medicine, Nanjing University of Chinese Medicine, Nanjing 210046, P.R. China
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Yoshidomi K, Murakami A, Yakabe K, Sueoka K, Nawata S, Sugino N. Heat shock protein 70 is involved in malignant behaviors and chemosensitivities to cisplatin in cervical squamous cell carcinoma cells. J Obstet Gynaecol Res 2014; 40:1188-96. [DOI: 10.1111/jog.12325] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2013] [Accepted: 10/16/2013] [Indexed: 11/29/2022]
Affiliation(s)
- Keiko Yoshidomi
- Department of Obstetrics and Gynecology; Yamaguchi University Graduate School of Medicine; Ube Japan
| | - Akihiro Murakami
- Department of Obstetrics and Gynecology; Yamaguchi University Graduate School of Medicine; Ube Japan
| | - Kazuyuki Yakabe
- Department of Obstetrics and Gynecology; Yamaguchi University Graduate School of Medicine; Ube Japan
| | - Kotaro Sueoka
- Department of Obstetrics and Gynecology; Yamaguchi University Graduate School of Medicine; Ube Japan
| | - Shugo Nawata
- Department of Obstetrics and Gynecology; Yamaguchi University Graduate School of Medicine; Ube Japan
| | - Norihiro Sugino
- Department of Obstetrics and Gynecology; Yamaguchi University Graduate School of Medicine; Ube Japan
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Lai CW, Chen HL, Lin KY, Liu FC, Chong KY, Cheng WTK, Chen CM. FTSJ2, a heat shock-inducible mitochondrial protein, suppresses cell invasion and migration. PLoS One 2014; 9:e90818. [PMID: 24595062 PMCID: PMC3942483 DOI: 10.1371/journal.pone.0090818] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Accepted: 02/05/2014] [Indexed: 01/04/2023] Open
Abstract
Ribosomal RNA large subunit methyltransferase J (RrmJ), an Escherichia coli heat shock protein, is responsible for 2′-O-ribose methylation in 23S rRNA. In mammals, three close homologs of RrmJ have been identified and have been designated as FTSJ1, FTSJ2 and FTSJ3; however, little is known about these genes. In this study, we characterized the mammalian FTSJ2, which was the most related protein to RrmJ in a phylogenetic analysis that had similar amino acid sequence features and tertiary protein structures of RrmJ. FTSJ2 was first identified in this study as a nucleus encoded mitochondrial protein that preserves the heat shock protein character in mammals in which the mRNA expressions was increased in porcine lung tissues and A549 cells after heat shock treatment. In addition, a recent study in non-small cell lung cancer (NSCLC) suggested that the FTSJ2 gene is located in a novel oncogenic locus. However, our results demonstrate that the expression of FTSJ2 mRNA was decreased in the more invasive subline (CL1-5) of the lung adenocarcinoma cells (CL1) compared with the less invasive subline (CL1-0), and overexpression of FTSJ2 resulted in the inhibition of cell invasion and migration in the rhabdomyosarcoma cell (TE671). In conclusion, our findings indicate that mammalian FTSJ2 is a mitochondrial ortholog of E. coli RrmJ and conserves the heat shock protein properties. Moreover, FTSJ2 possesses suppressive effects on the invasion and migration of cancer cells.
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Affiliation(s)
- Cheng-Wei Lai
- Department of Life Sciences, Agricultural Biotechnology Center, iEGG center, National Chung Hsing University, Taichung, Taiwan
| | - Hsiao-Ling Chen
- Department of Bioresources, Da-Yeh University, Changhwa, Taiwan
| | - Ken-Yo Lin
- Department of Life Sciences, Agricultural Biotechnology Center, iEGG center, National Chung Hsing University, Taichung, Taiwan
| | - Fang-Chueh Liu
- Department of Life Sciences, Agricultural Biotechnology Center, iEGG center, National Chung Hsing University, Taichung, Taiwan
- Department of Animal Nutrition, Livestock Research Institute, Council of Agriculture, Tainan, Taiwan
| | - Kowit-Yu Chong
- Department of Medical Biotechnology and Laboratory Science, Chang Gung University, Tao-Yuan, Taiwan
| | - Winston T. K. Cheng
- Department of Animal Science and Biotechnology, Tunghai University, Taichung, Taiwan
| | - Chuan-Mu Chen
- Department of Life Sciences, Agricultural Biotechnology Center, iEGG center, National Chung Hsing University, Taichung, Taiwan
- * E-mail:
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