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Buckley M, Kramer M, Johnson B, Huskin G, Berry J, Sewell-Loftin MK. Mechanical activation and expression of HSP27 in epithelial ovarian cancer. Sci Rep 2024; 14:2856. [PMID: 38310132 PMCID: PMC10838328 DOI: 10.1038/s41598-024-52992-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 01/25/2024] [Indexed: 02/05/2024] Open
Abstract
Understanding the complex biomechanical tumor microenvironment (TME) is of critical importance in developing the next generation of anti-cancer treatment strategies. This is especially true in epithelial ovarian cancer (EOC), the deadliest of the gynecologic cancers due to recurrent disease or chemoresistance. However, current models of EOC progression provide little control or ability to monitor how changes in biomechanical parameters alter EOC cell behaviors. In this study, we present a microfluidic device designed to permit biomechanical investigations of the ovarian TME. Using this microtissue system, we describe how biomechanical stimulation in the form of tensile strains upregulate phosphorylation of HSP27, a heat shock protein implicated in ovarian cancer chemoresistance. Furthermore, EOC cells treated with strain demonstrate decreased response to paclitaxel in the in vitro vascularized TME model. The results provide a direct link to biomechanical regulation of HSP27 as a mediator of EOC chemoresistance, possibly explaining the failure of such therapies in some patients. The work presented here lays a foundation to elucidating mechanobiological regulation of EOC progression, including chemoresistance and could provide novel targets for anti-cancer therapeutics.
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Affiliation(s)
- Molly Buckley
- Department of Biomedical Engineering, University of Alabama at Birmingham, 1824 6thAvenue South, Wallace Tumor Institute, Room 630A, Birmingham, AL, 35294, UK
| | - Maranda Kramer
- Department of Biomedical Engineering, University of Alabama at Birmingham, 1824 6thAvenue South, Wallace Tumor Institute, Room 630A, Birmingham, AL, 35294, UK
| | - Bronte Johnson
- Department of Biomedical Engineering, University of Alabama at Birmingham, 1824 6thAvenue South, Wallace Tumor Institute, Room 630A, Birmingham, AL, 35294, UK
| | - Gillian Huskin
- Department of Biomedical Engineering, University of Alabama at Birmingham, 1824 6thAvenue South, Wallace Tumor Institute, Room 630A, Birmingham, AL, 35294, UK
| | - Joel Berry
- Department of Biomedical Engineering, University of Alabama at Birmingham, 1824 6thAvenue South, Wallace Tumor Institute, Room 630A, Birmingham, AL, 35294, UK
- O'Neal Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL, 35233, UK
| | - Mary Kathryn Sewell-Loftin
- Department of Biomedical Engineering, University of Alabama at Birmingham, 1824 6thAvenue South, Wallace Tumor Institute, Room 630A, Birmingham, AL, 35294, UK.
- O'Neal Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL, 35233, UK.
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2
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Wang Y, Abazid A, Badendieck S, Mustea A, Stope MB. Impact of Non-Invasive Physical Plasma on Heat Shock Protein Functionality in Eukaryotic Cells. Biomedicines 2023; 11:biomedicines11051471. [PMID: 37239142 DOI: 10.3390/biomedicines11051471] [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: 04/04/2023] [Revised: 05/06/2023] [Accepted: 05/11/2023] [Indexed: 05/28/2023] Open
Abstract
Recently, biomedical research has increasingly investigated physical plasma as an innovative therapeutic approach with a number of therapeutic biomedical effects. It is known from radiation and chemotherapy that these applications can lead to the induction and activation of primarily cytoprotective heat shock proteins (HSP). HSP protect cells and tissues from physical, (bio)chemical, and physiological stress and, ultimately, along with other mechanisms, govern resistance and treatment failure. These mechanisms are well known and comparatively well studied in drug therapy. For therapies in the field of physical plasma medicine, however, extremely little data are available to date. In this review article, we provide an overview of the current studies on the interaction of physical plasma with the cellular HSP system.
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Affiliation(s)
- Yanqing Wang
- Department of Gynecology and Gynecological Oncology, University Hospital Bonn, Venusberg-Campus 1, 53127 Bonn, Germany
| | - Alexander Abazid
- Department of General, Visceral and Thorax Surgery, Bundeswehr Hospital Berlin, Scharnhorststrasse 13, 10115 Berlin, Germany
| | - Steffen Badendieck
- Department of General, Visceral and Thorax Surgery, Bundeswehr Hospital Berlin, Scharnhorststrasse 13, 10115 Berlin, Germany
| | - Alexander Mustea
- Department of Gynecology and Gynecological Oncology, University Hospital Bonn, Venusberg-Campus 1, 53127 Bonn, Germany
| | - Matthias B Stope
- Department of Gynecology and Gynecological Oncology, University Hospital Bonn, Venusberg-Campus 1, 53127 Bonn, Germany
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3
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Dai WY, Yao GQ, Deng XC, Zang GC, Liu J, Zhang GY, Chen YM, Lv MQ, Chen TT. Heat shock protein: A double-edged sword linking innate immunity and hepatitis B virus infection. J Virus Erad 2023; 9:100322. [PMID: 37128472 PMCID: PMC10148040 DOI: 10.1016/j.jve.2023.100322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 03/11/2023] [Accepted: 03/13/2023] [Indexed: 03/17/2023] Open
Abstract
Heat shock proteins (HSPs), which have a variety of functions, are one of the stress protein families. In recent years, They have been reported to play a dual role in hepatitis B virus (HBV) which as persistent infection which is associated with, cirrhosis and liver cancer. In this article, we have summarized the regulatory mechanisms between HSPs and viruses, especially HBV and associated diseases based on HSP biological functions of in response to viral infections. In view of their potential as broad-spectrum antiviral targets, we have also discuss current progress and challenges in drug development based on HSPs, as well as the potential applications of agents that have been evaluated clinically in HBV treatment.
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Önay Uçar E, Şengelen A, Mertoğlu Kamalı E. Hsp27, Hsp60, Hsp70, or Hsp90 depletion enhances the antitumor effects of resveratrol via oxidative and ER stress response in human glioblastoma cells. Biochem Pharmacol 2023; 208:115409. [PMID: 36603687 DOI: 10.1016/j.bcp.2022.115409] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 12/22/2022] [Accepted: 12/29/2022] [Indexed: 01/03/2023]
Abstract
Therapeutic resistance of gliomas is still a crucial issue and closely related to induced heat shock response (HSR). Resveratrol (RSV) is a promising experimental agent for glioblastoma (GB) therapy. However, the role of heat shock protein (Hsp)27, Hsp60, Hsp70, and Hsp90 on the therapeutic efficacy of RSV remains unclear in gliomas. Herein, small interfering (si)RNA transfection was performed to block Hsp expressions. RSV treatments reduced glioma cells' viability dose- and time-dependent while keeping HEK-293 normal cells alive. Furthermore, a low dose of RSV (15 µM/48 h) offered protection against oxidative stress and apoptosis due to Hsp depletion in healthy cells. On the contrary, in glioma cells, RSV (15 µM/48 h) increased ROS (reactive oxygen species) production, led to autophagy and induced endoplasmic reticulum (ER) stress and apoptosis, and reduced 2D- and 3D-clonogenic survival. Hsp27, Hsp60, Hsp70, or Hsp90 depletion also resulted in cell death through ER stress response and ROS burst. Remarkably, the heat shock response (increased HSF1 levels) due to Hsp depletion was attenuated by RSV in glioma cells. Collectively, our data show that these Hsp silencings make glioma cells more sensitive to RSV treatment, indicating that these Hsps are potential therapeutic targets for GB treatment.
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Affiliation(s)
- Evren Önay Uçar
- Department of Molecular Biology and Genetics, Faculty of Science, Istanbul University, Istanbul, Turkey.
| | - Aslıhan Şengelen
- Department of Molecular Biology and Genetics, Institute of Graduate Studies in Sciences, Istanbul University, Istanbul, Turkey.
| | - Elif Mertoğlu Kamalı
- Department of Molecular Biology and Genetics, Faculty of Science, Istanbul University, Istanbul, Turkey.
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5
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The Role of Hsp27 in Chemotherapy Resistance. Biomedicines 2022; 10:biomedicines10040897. [PMID: 35453647 PMCID: PMC9028095 DOI: 10.3390/biomedicines10040897] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 04/05/2022] [Accepted: 04/09/2022] [Indexed: 01/27/2023] Open
Abstract
Heat shock protein (Hsp)-27 is a small-sized, ATP-independent, chaperone molecule that is overexpressed under conditions of cellular stress such as oxidative stress and heat shock, and protects proteins from unfolding, thus facilitating proteostasis and cellular survival. Despite its protective role in normal cell physiology, Hsp27 overexpression in various cancer cell lines is implicated in tumor initiation, progression, and metastasis through various mechanisms, including modulation of the SWH pathway, inhibition of apoptosis, promotion of EMT, adaptation of CSCs in the tumor microenvironment and induction of angiogenesis. Investigation of the role of Hsp27 in the resistance of various cancer cell types against doxorubicin, herceptin/trastuzumab, gemcitabine, 5-FU, temozolomide, and paclitaxel suggested that Hsp27 overexpression promotes cancer cell survival against the above-mentioned chemotherapeutic agents. Conversely, Hsp27 inhibition increased the efficacy of those chemotherapy drugs, both in vitro and in vivo. Although numerous signaling pathways and molecular mechanisms were implicated in that chemotherapy resistance, Hsp27 most commonly contributed to the upregulation of Akt/mTOR signaling cascade and inactivation of p53, thus inhibiting the chemotherapy-mediated induction of apoptosis. Blockage of Hsp27 could enhance the cytotoxic effect of well-established chemotherapeutic drugs, especially in difficult-to-treat cancer types, ultimately improving patients’ outcomes.
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6
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Lee EJ, Park SJ, Lee C, Yim GW, Kim JW, Kim HS. Hypoxia-induced Maspin Expression Affects the Prognosis of Ovarian Clear Cell Carcinoma. In Vivo 2022; 36:212-220. [PMID: 34972717 DOI: 10.21873/invivo.12693] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 10/11/2021] [Accepted: 10/12/2021] [Indexed: 12/25/2022]
Abstract
BACKGROUND/AIM To investigate the role of the expression of hypoxia-related genes on the prognosis of ovarian clear cell carcinoma (OCCC). MATERIALS AND METHODS Basal mRNA levels of eight hypoxia-related genes were compared. Cell viability was assayed after treating ES-2 cells under hypoxic conditions. The mRNA and protein levels were evaluated after the induction of hypoxia and administration of increased doses of N-acetylcysteine (NAC). Finally, the prognostic role of their expression levels was evaluated in 61 patients with OCCC. RESULTS The mRNA and protein levels of maspin increased gradually with the induction of hypoxia. Maspin protein expression decreased after treatment with paclitaxel and NAC. High expression of maspin was related to poor progression-free and overall survival in patients with OCCC (adjusted hazard ratios, 3.97 and 7.47; 95% confidence intervals=1.34-11.81, and 1.98-28.13). CONCLUSION High expression of maspin induced by hypoxia might be associated with poor prognosis of OCCC.
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Affiliation(s)
- Eun Ji Lee
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Soo Jin Park
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Cheol Lee
- Department of Pathology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Ga Won Yim
- Department of Obstetrics and Gynecology, Dongguk University College of Medicine, Goyang, Republic of Korea
| | - Jae Weon Kim
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Hee Seung Kim
- Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Republic of Korea;
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Heiserman JP, Nallanthighal S, Gifford CC, Graham K, Samarakoon R, Gao C, Sage JJ, Zhang W, Higgins PJ, Cheon DJ. Heat Shock Protein 27, a Novel Downstream Target of Collagen Type XI alpha 1, Synergizes with Fatty Acid Oxidation to Confer Cisplatin Resistance in Ovarian Cancer Cells. Cancers (Basel) 2021; 13:cancers13194855. [PMID: 34638339 PMCID: PMC8508313 DOI: 10.3390/cancers13194855] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 09/17/2021] [Accepted: 09/23/2021] [Indexed: 01/31/2023] Open
Abstract
Simple Summary Collagen type XI alpha 1 (COL11A1) is a novel biomarker associated with poor survival in ovarian cancer and a promoter of ovarian cancer cell resistance to cisplatin. However, it is poorly understood how COL11A1 promotes ovarian cancer cisplatin resistance. We performed assays to discover the biological molecules that are activated by COL11A1 in ovarian cancer cells. We found that heat shock protein 27 (HSP27), a cellular stress response protein, is activated by COL11A1. Furthermore, we observed that depletion and drug inhibition of HSP27 makes ovarian cancer cells grown on COL11A1 to be more susceptible to cisplatin treatment. We also discovered that ovarian cancer cells upregulate fatty acid oxidation (FAO), a metabolic process that breaks down fats to generate energy and biomolecules, to compensate for the loss of HSP27. Our findings have therapeutic implications for clinicians who wish to treat ovarian tumors that maintain high levels of COL11A1 and HSP27. Abstract Collagen type XI alpha 1 (COL11A1) is a novel biomarker associated with cisplatin resistance in ovarian cancer. We have previously reported that COL11A1 activates Src-Akt signaling through the collagen receptors discoidin domain receptor 2 (DDR2) and integrin α1β1 to confer cisplatin resistance to ovarian cancer cells. To identify the potential signaling molecules downstream of COL11A1 signaling, we performed protein kinase arrays and identified heat shock protein 27 (HSP27) as a potential mediator of COL11A1-induced cisplatin resistance. Through receptor knockdown and inhibitor experiments, we demonstrated that COL11A1 significantly upregulates HSP27 phosphorylation and expression via DDR2/integrin α1β1 and Src/Akt signaling in ovarian cancer cells. Furthermore, genetic knockdown and pharmacological inhibition of HSP27, via ivermectin treatment, significantly sensitizes ovarian cancer cells cultured on COL11A1 to cisplatin treatment. HSP27 knockdown or inhibition also decreases NFκB activity as well as the expression of inhibitors of apoptosis proteins (IAPs), which are known downstream effector molecules of COL11A1 that promote cisplatin resistance. Interestingly, HSP27 knockdown or inhibition stimulates ovarian cancer cells to upregulate fatty acid oxidation (FAO) for survival and cisplatin resistance, and dual inhibition of HSP27 and FAO synergistically kills ovarian cancer cells that are cultured on COL11A1. Collectively, this study identifies HSP27 as a novel and druggable COL11A1 downstream effector molecule that may be targeted to overcome cisplatin resistance in recurrent ovarian cancer, which often overexpress COL11A1.
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8
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Zhang B, Fan Y, Cao P, Tan K. Multifaceted roles of HSF1 in cell death: A state-of-the-art review. Biochim Biophys Acta Rev Cancer 2021; 1876:188591. [PMID: 34273469 DOI: 10.1016/j.bbcan.2021.188591] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 06/24/2021] [Accepted: 07/11/2021] [Indexed: 02/08/2023]
Abstract
Cell death is a common and active process that is involved in various biological processes, including organ development, morphogenesis, maintaining tissue homeostasis and eliminating potentially harmful cells. Abnormal regulation of cell death significantly contributes to tumor development, progression and chemoresistance. The mechanisms of cell death are complex and involve not only apoptosis and necrosis but also their cross-talk with other types of cell death, such as autophagy and the newly identified ferroptosis. Cancer cells are chronically exposed to various stresses, such as lack of oxygen and nutrients, immune responses, dysregulated metabolism and genomic instability, all of which lead to activation of heat shock factor 1 (HSF1). In response to heat shock, oxidative stress and proteotoxic stresses, HSF1 upregulates transcription of heat shock proteins (HSPs), which act as molecular chaperones to protect normal cells from stresses and various diseases. Accumulating evidence suggests that HSF1 regulates multiple types of cell death through different signaling pathways as well as expression of distinct target genes in cancer cells. Here, we review the current understanding of the potential roles and molecular mechanism of HSF1 in regulating apoptosis, autophagy and ferroptosis. Deciphering HSF1-regulated signaling pathways and target genes may help in the development of new targeted anti-cancer therapeutic strategies.
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Affiliation(s)
- Bingwei Zhang
- Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei 050024, China; Beijing Key Laboratory of Gene Resource and Molecular Development, College of Life Sciences, Beijing Normal University, Beijing 100875, China
| | - Yumei Fan
- Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei 050024, China
| | - Pengxiu Cao
- Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei 050024, China
| | - Ke Tan
- Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal University, Shijiazhuang, Hebei 050024, China.
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9
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Budhram-Mahadeo VS, Solomons MR, Mahadeo-Heads EAO. Linking metabolic dysfunction with cardiovascular diseases: Brn-3b/POU4F2 transcription factor in cardiometabolic tissues in health and disease. Cell Death Dis 2021; 12:267. [PMID: 33712567 PMCID: PMC7955040 DOI: 10.1038/s41419-021-03551-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 02/15/2021] [Accepted: 02/16/2021] [Indexed: 12/26/2022]
Abstract
Metabolic and cardiovascular diseases are highly prevalent and chronic conditions that are closely linked by complex molecular and pathological changes. Such adverse effects often arise from changes in the expression of genes that control essential cellular functions, but the factors that drive such effects are not fully understood. Since tissue-specific transcription factors control the expression of multiple genes, which affect cell fate under different conditions, then identifying such regulators can provide valuable insight into the molecular basis of such diseases. This review explores emerging evidence that supports novel and important roles for the POU4F2/Brn-3b transcription factor (TF) in controlling cellular genes that regulate cardiometabolic function. Brn-3b is expressed in insulin-responsive metabolic tissues (e.g. skeletal muscle and adipose tissue) and is important for normal function because constitutive Brn-3b-knockout (KO) mice develop profound metabolic dysfunction (hyperglycaemia; insulin resistance). Brn-3b is highly expressed in the developing hearts, with lower levels in adult hearts. However, Brn-3b is re-expressed in adult cardiomyocytes following haemodynamic stress or injury and is necessary for adaptive cardiac responses, particularly in male hearts, because male Brn-3b KO mice develop adverse remodelling and reduced cardiac function. As a TF, Brn-3b regulates the expression of multiple target genes, including GLUT4, GSK3β, sonic hedgehog (SHH), cyclin D1 and CDK4, which have known functions in controlling metabolic processes but also participate in cardiac responses to stress or injury. Therefore, loss of Brn-3b and the resultant alterations in the expression of such genes could potentially provide the link between metabolic dysfunctions with adverse cardiovascular responses, which is seen in Brn-3b KO mutants. Since the loss of Brn-3b is associated with obesity, type II diabetes (T2DM) and altered cardiac responses to stress, this regulator may provide a new and important link for understanding how pathological changes arise in such endemic diseases.
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Affiliation(s)
- Vishwanie S Budhram-Mahadeo
- Molecular Biology Development and Disease, Institute of Cardiovascular Science, University College London, London, UK.
| | - Matthew R Solomons
- Molecular Biology Development and Disease, Institute of Cardiovascular Science, University College London, London, UK
| | - Eeshan A O Mahadeo-Heads
- Molecular Biology Development and Disease, Institute of Cardiovascular Science, University College London, London, UK.,College of Medicine and Health, University of Exeter Medical School, St Luke's Campus, Exeter, UK
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Wantoch von Rekowski K, König P, Henze S, Schlesinger M, Zawierucha P, Januchowski R, Bendas G. Insight into Cisplatin-Resistance Signaling of W1 Ovarian Cancer Cells Emerges mTOR and HSP27 as Targets for Sensitization Strategies. Int J Mol Sci 2020; 21:E9240. [PMID: 33287446 PMCID: PMC7730285 DOI: 10.3390/ijms21239240] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 12/01/2020] [Accepted: 12/01/2020] [Indexed: 02/06/2023] Open
Abstract
The microenvironment possesses a strong impact on the tumor chemoresistance when cells bind to components of the extracellular matrix. Here we elucidate the signaling pathways of cisplatin resistance in W1 ovarian cancer cells binding to collagen type 1 (COL1) and signaling interference with constitutive cisplatin resistance in W1CR cells to discover the targets for sensitization. Proteome kinase arrays and Western blots were used to identify the signaling components, their impact on cisplatin resistance was evaluated by inhibitory or knockdown approaches. W1 cell binding to COL1 upregulates integrin-associated signals via FAK/PRAS40/mTOR, confirmed by β1-integrin (ITGB1) knockdown. mTOR appears as key for resistance, its blockade reversed COL1 effects on W1 cell resistance completely. W1CR cells compensate ITGB1-knockdown by upregulation of discoidin domain receptor 1 (DDR1) as alternative COL1 sensor. COL1 binding via DDR1 activates the MAPK pathway, of which JNK1/2 appears critical for COL1-mediated resistance. JNK1/2 inhibition inverts COL1 effects in W1CR cells, whereas intrinsic cisplatin resistance remained unaffected. Remarkably, knockdown of HSP27, another downstream MAPK pathway component overcomes intrinsic resistance completely sensitizing W1CR cells to the level of W1 cells for cisplatin cytotoxicity. Our data confirm the independent regulation of matrix-induced and intrinsic chemoresistance in W1 ovarian cancer cells and offer novel targets for sensitization.
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Affiliation(s)
| | - Philipp König
- Department of Pharmacy, University of Bonn, 53113 Bonn, Germany; (K.W.v.R.); (P.K.); (S.H.); (M.S.)
| | - Svenja Henze
- Department of Pharmacy, University of Bonn, 53113 Bonn, Germany; (K.W.v.R.); (P.K.); (S.H.); (M.S.)
| | - Martin Schlesinger
- Department of Pharmacy, University of Bonn, 53113 Bonn, Germany; (K.W.v.R.); (P.K.); (S.H.); (M.S.)
| | - Piotr Zawierucha
- Department of RNA Metabolism, Institute of Bioorganic Chemistry Polish Academy of Sciences, 61-704 Poznań, Poland;
| | - Radosław Januchowski
- Institute of Health Sciences, Collegium Medicum, University of Zielona Gora, Zyty 28 St., 65-046 Zielona Góra, Poland;
| | - Gerd Bendas
- Department of Pharmacy, University of Bonn, 53113 Bonn, Germany; (K.W.v.R.); (P.K.); (S.H.); (M.S.)
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11
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Jego G, Hermetet F, Girodon F, Garrido C. Chaperoning STAT3/5 by Heat Shock Proteins: Interest of Their Targeting in Cancer Therapy. Cancers (Basel) 2019; 12:cancers12010021. [PMID: 31861612 PMCID: PMC7017265 DOI: 10.3390/cancers12010021] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 12/05/2019] [Accepted: 12/13/2019] [Indexed: 01/16/2023] Open
Abstract
While cells from multicellular organisms are dependent upon exogenous signals for their survival, growth, and proliferation, commitment to a specific cell fate requires the correct folding and maturation of proteins, as well as the degradation of misfolded or aggregated proteins within the cell. This general control of protein quality involves the expression and the activity of molecular chaperones such as heat shock proteins (HSPs). HSPs, through their interaction with the STAT3/STAT5 transcription factor pathway, can be crucial both for the tumorigenic properties of cancer cells (cell proliferation, survival) and for the microenvironmental immune cell compartment (differentiation, activation, cytokine secretion) that contributes to immunosuppression, which, in turn, potentially promotes tumor progression. Understanding the contribution of chaperones such as HSP27, HSP70, HSP90, and HSP110 to the STAT3/5 signaling pathway has raised the possibility of targeting such HSPs to specifically restrain STAT3/5 oncogenic functions. In this review, we present how HSPs control STAT3 and STAT5 activation, and vice versa, how the STAT signaling pathways modulate HSP expression. We also discuss whether targeting HSPs is a valid therapeutic option and which HSP would be the best candidate for such a strategy.
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Affiliation(s)
- Gaëtan Jego
- INSERM, LNC UMR1231, team HSP-Pathies, University of Bourgogne Franche-Comté, F-21000 Dijon, France; (F.H.); (F.G.)
- UFR des Sciences de Santé, University of Burgundy and Franche-Comté, F-21000 Dijon, France
- Correspondence: (C.G.); (G.J.); Tel.: +33-3-8039-3345 (G.J.); Fax: +33-3-8039-3434 (C.G. & G.J.)
| | - François Hermetet
- INSERM, LNC UMR1231, team HSP-Pathies, University of Bourgogne Franche-Comté, F-21000 Dijon, France; (F.H.); (F.G.)
- UFR des Sciences de Santé, University of Burgundy and Franche-Comté, F-21000 Dijon, France
| | - François Girodon
- INSERM, LNC UMR1231, team HSP-Pathies, University of Bourgogne Franche-Comté, F-21000 Dijon, France; (F.H.); (F.G.)
- UFR des Sciences de Santé, University of Burgundy and Franche-Comté, F-21000 Dijon, France
- Haematology laboratory, Dijon University Hospital, F-21000 Dijon, France
| | - Carmen Garrido
- INSERM, LNC UMR1231, team HSP-Pathies, University of Bourgogne Franche-Comté, F-21000 Dijon, France; (F.H.); (F.G.)
- UFR des Sciences de Santé, University of Burgundy and Franche-Comté, F-21000 Dijon, France
- Centre Georges François Leclerc, 21000 Dijon, France
- Correspondence: (C.G.); (G.J.); Tel.: +33-3-8039-3345 (G.J.); Fax: +33-3-8039-3434 (C.G. & G.J.)
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12
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De Andrade WP, Da Conceição Braga L, Gonçales NG, Silva LM, Da Silva Filho AL. HSPA1A, HSPA1L and TRAP1 heat shock genes may be associated with prognosis in ovarian epithelial cancer. Oncol Lett 2019; 19:359-367. [PMID: 31897148 PMCID: PMC6923843 DOI: 10.3892/ol.2019.11095] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Accepted: 07/12/2019] [Indexed: 12/24/2022] Open
Abstract
Epithelial ovarian cancer (EOC) is the most lethal gynecological malignancy, with the presence of chemoresistance contributing to the poor prognosis. Heat Shock Proteins (HSPs) genes are activated in response to pathophysiological stress and serve a role in a variety of stages in carcinogenesis, acting primarily as anti-apoptotic agents and in chemotherapy resistance in a variety of tumor types. The current study evaluated the HSP gene expression profile in women with ovarian cancer (OC) and their correlation with clinical and pathological aspects of patients with OC. A total of 51 patients included in the current study were divided into four groups: Primary Epithelial Ovarian Cancer (EOC; n=14), metastatic EOC (n=11), ovarian serous cystadenoma (n=7) and no evidence of ovarian malignancy or control groups (n=19). RNA extraction and reverse transcription-quantitative (RT-q) PCR was then performed on the samples obtained. RT-qPCR was performed to compare TNF receptor associated protein 1 (TRAP1), heat shock protein family (HSP) HSPB1, HSPD1, HSPA1A and HSPA1L expression in primary and metastatic EOCs. TRAP1, HSPB1, HSPD1, HSPA1A and HSPA1L gene expression did not differ among groups. HSPA1A, HSPA1L and TRAP1 were revealed to be underexpressed in the primary and metastatic EOC groups, with HSPA1L exhibiting the lowest expression. TRAP1 expression was higher in tumors at stages I/II compared with those at stages III/IV. No correlation was exhibited between HSP expression and age, menarche, menopause, parity, period after menopause initiation, cytoreduction, CA-125 or overall and disease-free survival. HSPA1A was negatively correlated with the risk of mortality from OC. The results indicated that the downregulation of HSPA1A, HSPA1L and TRAP1 could be associated with the clinical prognostic features of women with EOC.
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Affiliation(s)
- Warne Pedro De Andrade
- Oncology Service, Vera Cruz Hospital, Belo Horizonte, Minas Gerais 30180-090, Brazil.,Department of Obstetrics and Gynecology, School of Medicine, São Paulo State University, Botucatu, Sao Paulo 18618-687, Brazil
| | - Letícia Da Conceição Braga
- Department of Obstetrics and Gynecology, School of Medicine, São Paulo State University, Botucatu, Sao Paulo 18618-687, Brazil.,Cellular Biology Service, Research and Development Department, Ezequiel Dias Foundation, Belo Horizonte, Minas Gerais 30510-010, Brazil
| | - Nikole Gontijo Gonçales
- Cellular Biology Service, Research and Development Department, Ezequiel Dias Foundation, Belo Horizonte, Minas Gerais 30510-010, Brazil
| | - Luciana Maria Silva
- Cellular Biology Service, Research and Development Department, Ezequiel Dias Foundation, Belo Horizonte, Minas Gerais 30510-010, Brazil
| | - Agnaldo Lopes Da Silva Filho
- Department of Obstetrics and Gynecology, School of Medicine, São Paulo State University, Botucatu, Sao Paulo 18618-687, Brazil.,Department of Obstetrics and Gynecology, School of Medicine, Minas Gerais Federal University, Belo Horizonte, Minas Gerais 30130-100, Brazil
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Heme Oxygenase-1 is a Key Molecule Underlying Differential Response of TW-37-Induced Apoptosis in Human Mucoepidermoid Carcinoma Cells. Molecules 2019; 24:molecules24091700. [PMID: 31052354 PMCID: PMC6539960 DOI: 10.3390/molecules24091700] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 04/22/2019] [Accepted: 04/27/2019] [Indexed: 12/25/2022] Open
Abstract
TW-37 is a small-molecule inhibitor of Bcl-2 family proteins, which can induce anti-cancer activities in various types of cancer. In the current study, we investigated the potential molecular mechanism underlying the differential response to TW-37-induced apoptosis in two human mucoepidermoid carcinoma (MEC) cell lines. The differential response and underlying molecular mechanism of human MEC cells to TW-37 was evaluated by trypan blue exclusion assay, western blotting, 4’, 6-diamidino-2-phenylindole staining, annexin V/propidium iodide double staining, analysis of the sub-G1 population, human apoptosis array, and measurements of intracellular reactive oxygen species (ROS). TW-37 decreased cell viability and induced apoptosis in YD-15 cells, but not in MC3 cells. Proteome profiling using a human apoptosis array revealed four candidate proteins and of these, heme oxygenase-1 (HO-1) was mainly related to the differential response to TW-37 of YD-15 and MC3 cells. TW-37 also led to a significant increase in intracellular levels of ROS in YD-15 cells, which is associated with apoptosis induction. The ectopic expression of HO-1 recovered YD-15 cells from TW-37-induced apoptosis by reducing intracellular levels of ROS. The expression of HO-1 was reduced through both transcriptional and post-translational modification during TW-37-mediated apoptosis. We conclude that HO-1 is a potential indicator to estimate response to TW37-induced apoptosis in human MEC.
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14
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Maskell LJ, Mahadeo AV, Budhram-Mahadeo VS. POU4F2/Brn-3b transcription factor is associated with survival and drug resistance in human ovarian cancer cells. Oncotarget 2018; 9:36770-36779. [PMID: 30613365 PMCID: PMC6298405 DOI: 10.18632/oncotarget.26371] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 11/05/2018] [Indexed: 02/06/2023] Open
Abstract
The development of drug resistance following treatment with chemotherapeutic agents such as cisplatin (cis) and paclitaxel (pax) contributes to high morbidity and mortality in ovarian cancers. However, the molecular mechanisms underlying such changes are not well understood. In this study, we demonstrate that the Brn-3b transcription factor was increased in different ovarian cancer cells including SKOV3 and A2780 following treatment with cis and pax. Furthermore, sustained increases in Brn-3b were associated with survival in drug resistant cells and correlated with elevated HSP27 expression. In contrast, targeting Brn-3b for reduction using short interfering RNA (siRNA) also resulted in attenuated HSP27 expression. Importantly, blocking Brn-3b expression with siRNA in SKOV3 cells was associated with reduced cell numbers at baseline but also increased cell death after further treatment, indicating sensitization of cells. Similar results were obtained in the metastatic IP1 cell line derived from ascites of mice bearing SKOV3 tumours. These findings suggest that increased Brn-3b may confer resistance to chemotherapeutic drugs in ovarian cancer cells by regulating key target genes such as HSP27 and that targeting Brn-3b may provide a novel mechanism for treatment of drug resistant ovarian cancers.
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Affiliation(s)
- Lauren J Maskell
- Molecular Biology Development and Disease, University College London, London, UK
| | - Anupam V Mahadeo
- Molecular Biology Development and Disease, University College London, London, UK.,Stony Brook University, Stony Brook, NY, USA
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15
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Kim JY, An YM, Yoo BR, Kim JM, Han SY, Na Y, Lee YS, Cho J. HSP27 inhibitor attenuates radiation-induced pulmonary inflammation. Sci Rep 2018; 8:4189. [PMID: 29520071 PMCID: PMC5843649 DOI: 10.1038/s41598-018-22635-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 02/27/2018] [Indexed: 01/22/2023] Open
Abstract
Radiation therapy has been used to treat over 70% of thoracic cancer; however, the method usually causes radiation pneumonitis. In the current study, we investigated the radioprotective effects of HSP27 inhibitor (J2) on radiation-induced lung inflammation in comparison to amifostine. In gross and histological findings, J2 treatment significantly inhibited immune cell infiltration in lung tissue, revealing anti-inflammatory potential of J2. Normal lung volume, evaluated by micro-CT analysis, in J2-treated mice was higher compared to that in irradiated mice. J2-treated mice reversed radiation-induced respiratory distress. However, amifostine did not show significant radioprotective effects in comparison to that of J2. In HSP27 transgenic mice, we observed increased immune cells recruitment and decreased volume of normal lung compared to wild type mice. Increased ROS production and oxidative stress after IR were down-regulated by J2 treatment, demonstrating antioxidant property of J2. The entire data of this study collectively showed that J2 may be an effective therapeutic agent for radiation-induced lung injury.
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Affiliation(s)
- Jee-Youn Kim
- Department of Radiation Oncology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Yong-Min An
- Department of Radiation Oncology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Byeong Rok Yoo
- Department of Radiation Oncology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jin-Mo Kim
- Department of Radiation Oncology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Song Yee Han
- Department of Radiation Oncology, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Younghwa Na
- College of Pharmacy, CHA University, Pocheon, 487-010, Republic of Korea.
| | - Yun-Sil Lee
- College of Pharmacy and Division of Life and Pharmaceutical Science, Ewha Womans University, Seoul, Republic of Korea.
| | - Jaeho Cho
- Department of Radiation Oncology, Yonsei University College of Medicine, Seoul, Republic of Korea.
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16
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Kim JH, Jung YJ, Choi B, Lee NL, Lee HJ, Kwak SY, Kwon Y, Na Y, Lee YS. Overcoming HSP27-mediated resistance by altered dimerization of HSP27 using small molecules. Oncotarget 2018; 7:53178-53190. [PMID: 27449291 PMCID: PMC5288177 DOI: 10.18632/oncotarget.10629] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 07/06/2016] [Indexed: 12/15/2022] Open
Abstract
Heat shock protein 27 (HSP27, HSPB1) is an anti-apoptotic protein characterized for its tumorigenic and metastatic properties, and now referenced as a major therapeutic target in many types of cancer. The biochemical properties of HSP27 rely on a structural oligomeric and dynamic organization that is important for its chaperone activity. Down-regulation by small interfering RNA or inhibition with a dominant-negative mutant efficiently counteracts the anti-apoptotic and protective properties of HSP27. However, unlike other HSPs such as HSP90 and HSP70, small molecule approaches for neutralization of HSP27 are not well established because of the absence of an ATP binding domain. Previously, we found that a small molecule, zerumbone (ZER), induced altered dimerization of HSP27 by cross linking the cysteine residues required to build a large oligomer, led to sensitization in combination with radiation. In this study, we identified another small molecule, a xanthone compound, more capable of altering dimeric HSP27 than ZER and yielding sensitization in human lung cancer cells when combined with HSP90 inhibitors or standard anticancer modalities such as irradiation and cytotoxic anticancer drugs. Therefore, altered dimerization of HSP27 represents a good strategy for anticancer therapy in HSP27-overexpressing cancer cells.
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Affiliation(s)
- Jee Hye Kim
- Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, 120-720, Korea
| | - Ye Jin Jung
- Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, 120-720, Korea
| | - Byeol Choi
- Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, 120-720, Korea
| | - Na Lim Lee
- Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, 120-720, Korea
| | - Hae Jun Lee
- Division of Radiation Effects, Korea Institute of Radiological and Medical Sciences, Seoul, 139-706, Korea
| | - Soo Yeon Kwak
- College of Pharmacy, CHA University, Pocheon, 487-010, Korea
| | - Youngjoo Kwon
- Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, 120-720, Korea
| | - Younghwa Na
- College of Pharmacy, CHA University, Pocheon, 487-010, Korea
| | - Yun-Sil Lee
- Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, 120-720, Korea
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17
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Real NE, Castro GN, Darío Cuello-Carrión F, Perinetti C, Röhrich H, Cayado-Gutiérrez N, Guerrero-Gimenez ME, Ciocca DR. Molecular markers of DNA damage and repair in cervical cancer patients treated with cisplatin neoadjuvant chemotherapy: an exploratory study. Cell Stress Chaperones 2017; 22:811-822. [PMID: 28608263 PMCID: PMC5655369 DOI: 10.1007/s12192-017-0811-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 05/10/2017] [Accepted: 05/12/2017] [Indexed: 12/27/2022] Open
Abstract
Neoadjuvant (or induction) chemotherapy can be used for cervical cancer patients with locally advanced disease; this treatment is followed by radical surgery and/or radiation therapy. Cisplatin is considered to be the most active platinum agent drug for this cancer, with a response rate of 20%. In order to understand how the cisplatin treatment affects the stress response, in this work, we performed an exploratory study to analyze a number of stress proteins before and after cisplatin neoadjuvant chemotherapy. The study involved 14 patients; the pre- and post-chemotherapy paired biopsies were examined by hematoxylin and eosin staining and by immunohistochemistry. The proteins evaluated were p53, P16/INK4A, MSH2, nuclear protein transcriptional regulator 1 (NUPR1), and HSPB1 (total: HSPB1/t and phosphorylated: HSPB1/p). These proteins were selected because there is previous evidence of their relationship with drug resistance. The formation of platinum-DNA adducts was also studied. There was a great variation in the expression levels of the mentioned proteins in the pre-chemotherapy biopsies. After chemotherapy, p53 was not significantly affected by cisplatin, as well as P16/INK4A and MSH2 while nuclear NUPR1 content tended to decrease (p = 0.056). Cytoplasmic HSPB1/t expression levels decreased significantly following cisplatin therapy while nuclear HSPB1/t and HSPB1/p tended to increase. Since the most significant changes following chemotherapy appeared in the HSPB1 expression levels, the changes were confirmed by Western blot. The platinum-DNA adducts were observed in HeLa cell in apoptosis; however, in the tumor samples, the platinum-DNA adducts were observed in morphologically healthy tumor cells; these cells displayed nuclear HSPB1/p. Further mechanistic studies should be performed to reveal how HSPB1/p is related with drug resistance. When the correlations of the markers with the response to neoadjuvant chemotherapy were examined, only high pre-chemotherapy levels of cytoplasmic HSPB1/p correlated with a poor clinical and pathological response to neoadjuvant cisplatin chemotherapy (p = 0.056) suggesting that this marker could be useful opening its study in a larger number of cases.
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Affiliation(s)
- Nilda E Real
- Oncology Department, Hospital Diego Paroissien of Maipú, Mendoza, Argentina
| | - Gisela N Castro
- Laboratory of Oncology, Institute of Medicine and Experimental Biology of Cuyo (IMBECU), National Scientific and Technical Research Council (CONICET), Av. Dr. Ruiz Leal s/n, Parque General San Martín, 5500, Mendoza, Argentina
| | - F Darío Cuello-Carrión
- Laboratory of Oncology, Institute of Medicine and Experimental Biology of Cuyo (IMBECU), National Scientific and Technical Research Council (CONICET), Av. Dr. Ruiz Leal s/n, Parque General San Martín, 5500, Mendoza, Argentina
| | - Claudia Perinetti
- Oncology Department, Hospital Diego Paroissien of Maipú, Mendoza, Argentina
| | | | - Niubys Cayado-Gutiérrez
- Laboratory of Oncology, Institute of Medicine and Experimental Biology of Cuyo (IMBECU), National Scientific and Technical Research Council (CONICET), Av. Dr. Ruiz Leal s/n, Parque General San Martín, 5500, Mendoza, Argentina
| | - Martin E Guerrero-Gimenez
- Laboratory of Oncology, Institute of Medicine and Experimental Biology of Cuyo (IMBECU), National Scientific and Technical Research Council (CONICET), Av. Dr. Ruiz Leal s/n, Parque General San Martín, 5500, Mendoza, Argentina
| | - Daniel R Ciocca
- Laboratory of Oncology, Institute of Medicine and Experimental Biology of Cuyo (IMBECU), National Scientific and Technical Research Council (CONICET), Av. Dr. Ruiz Leal s/n, Parque General San Martín, 5500, Mendoza, Argentina.
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18
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Choi B, Choi SK, Park YN, Kwak SY, Lee HJ, Kwon Y, Na Y, Lee YS. Sensitization of lung cancer cells by altered dimerization of HSP27. Oncotarget 2017; 8:105372-105382. [PMID: 29285257 PMCID: PMC5739644 DOI: 10.18632/oncotarget.22192] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Accepted: 09/21/2017] [Indexed: 12/23/2022] Open
Abstract
Heat shock protein 27 (HSP27, HSPB1) induces resistance to anticancer drugs in various cancer types, including non-small cell lung cancer (NSCLC). Therefore, pharmacological inhibition of HSP27 in NSCLC may be a good strategy for anticancer therapy. Unlike other HSPs such as HSP90 and HSP70, small molecule approaches for neutralization of HSP27 are not well established because of the absence of an ATP binding domain. Previously, small molecules with altered cross linking activity of HSP27, were identified to inhibit building a large oligomer led to sensitization in combination with radiation and chemotherapeutic drugs. In this study, a chromene compound, J2 that exhibited better cross-linking activity of HSP27 than xanthone compound, SW15 which was previously identified, was yielding sensitization to NSCLC cells with high expression of HSP27 when combined with HSP90 inhibitor and standard anticancer modalities such as taxol and cisplatin. In vivo xenograft system also showed sensitization activity of J2, as well as in vitro cell viability, cell death or apoptosis detection assay. For better druggability, several quinolone compounds, an (bio) isostere of chromone and one of well-known core in many marketed medicine, was designed and synthesized by replacement of oxygen with nitrogen in 4-pyron structure of J2. However, the cross linking activity of HSP27 disappeared by quinolone compounds and the sensitizing effects on the anticancer drugs disappeared as well, suggesting oxygene moiety of 4-pyron structure of J2 may be a pharmacophore for induction of cross linking of HSP27 and sensitization to cancer cells. In conclusion, combination of chemotherapy with small molecules that induces altered cross-linking of HSP27 may be a good strategy to overcome the resistance of anticancer drugs in HSP27-over-expressing cancer cells.
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Affiliation(s)
- Byeol Choi
- Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul 120-720, Korea
| | - Seul-Ki Choi
- Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul 120-720, Korea
| | - You Na Park
- Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul 120-720, Korea
| | - Soo-Yeon Kwak
- College of Pharmacy, CHA University, Pocheon 487-010, Korea
| | - Hwa Jeong Lee
- Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul 120-720, Korea
| | - Youngjoo Kwon
- Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul 120-720, Korea
| | - Younghwa Na
- College of Pharmacy, CHA University, Pocheon 487-010, Korea
| | - Yun-Sil Lee
- Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul 120-720, Korea
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19
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Ishida T, Ishii Y, Tsuruta M, Okabayashi K, Akimoto S, Koishikawa K, Hasegawa H, Kitagawa Y. Cetuximab promotes SN38 sensitivity via suppression of heat shock protein 27 in colorectal cancer cells with wild-type RAS. Oncol Rep 2017; 38:926-932. [DOI: 10.3892/or.2017.5734] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Accepted: 06/06/2017] [Indexed: 11/06/2022] Open
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20
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Heat Shock Protein HSP27 Secretion by Ovarian Cancer Cells Is Linked to Intracellular Expression Levels, Occurs Independently of the Endoplasmic Reticulum Pathway and HSP27's Phosphorylation Status, and Is Mediated by Exosome Liberation. DISEASE MARKERS 2017; 2017:1575374. [PMID: 28325957 PMCID: PMC5343262 DOI: 10.1155/2017/1575374] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Revised: 02/06/2017] [Accepted: 02/12/2017] [Indexed: 12/05/2022]
Abstract
The heat shock protein HSP27 has been correlated in ovarian cancer (OC) patients with aggressiveness and chemoresistance and, therefore, represents a promising potential biomarker for OC diagnosis, prognosis, and treatment response. Notably, secretion of soluble HSP27 has been described by a few cell types and may take place as well in OC cells. Therefore, we studied HSP27 secretion mechanisms under diverse cellular conditions in an OC cell model system. Secretion of HSP27 was characterized after overexpression of HSP27 by transfected plasmids and after heat shock. Intra- and extracellular HSP27 amounts were assessed by Western blotting and ELISA. Protein secretion was blocked by brefeldin A and the impact of the HSP27 phosphorylation status was analyzed overexpressing HSP27 phosphomutants. The present study demonstrated that HSP27 secretion by OVCAR-3 and SK-OV-3 cells depends on intracellular HSP27 concentrations. Moreover, HSP27 secretion is independent of the endoplasmic reticulum secretory pathway and HSP27 phosphorylation. Notably, analysis of OC cell-born exosomes not only confirmed the concentration-dependent correlation of HSP27 expression and secretion but also demonstrated a concentration-dependent incorporation of HSP27 protein into exosomes. Thus, secreted HSP27 may become more important as an extracellular factor which controls the tumor microenvironment and might be a noninvasive biomarker.
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21
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Schuster C, Akslen LA, Straume O. Expression of Heat Shock Protein 27 in Melanoma Metastases Is Associated with Overall Response to Bevacizumab Monotherapy: Analyses of Predictive Markers in a Clinical Phase II Study. PLoS One 2016; 11:e0155242. [PMID: 27166673 PMCID: PMC4864228 DOI: 10.1371/journal.pone.0155242] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Accepted: 04/25/2016] [Indexed: 11/27/2022] Open
Abstract
The aim of this study was to identify potential predictive biomarkers in 35 patients with metastatic melanoma treated with anti-angiogenic bevacizumab monotherapy in a clinical phase II study. The immunohistochemical expression of various angiogenic factors in tissues from primary melanomas and metastases as well as their concentration in blood samples were examined. Strong expression of Heat Shock Protein 27 (HSP27) in metastases correlated significantly with complete or partial response to bevacizumab (p = 0.044). Furthermore, clinical benefit, i.e., complete or partial response or stable disease for at least 6 months, was more frequent in patients with strong expression of HSP27 in primary tumors (p = 0.046). Tissue expression of vascular endothelial growth factor (VEGF-A), its splicing variant VEGF165b or basic fibroblast growth factor (bFGF) did not correlate with response, and the concentration of HSP27, VEGF-A or bFGF measured in blood samples before treatment did not show predictive value. Further, microvessel density, proliferating microvessel density and presence of glomeruloid microvascular proliferations were assessed in sections of primary tumors and metastases. Microvessel density in primary melanomas was significantly higher in patients with clinical benefit than in non-responders (p = 0.042). In conclusion, our findings suggest that strong HSP27 expression in melanoma metastases predicts response to bevacizumab treatment.
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Affiliation(s)
- Cornelia Schuster
- Centre for Cancer Biomarkers CCBIO, Department of Clinical Medicine, University of Bergen, Bergen, Norway
| | - Lars A. Akslen
- Centre for Cancer Biomarkers CCBIO, Department of Clinical Medicine, University of Bergen, Bergen, Norway
- Department of Pathology, Haukeland University Hospital, Bergen, Norway
- * E-mail: (OS); (LAA)
| | - Oddbjørn Straume
- Department of Oncology and Medical Physics, Haukeland University Hospital, Bergen, Norway
- Centre for Cancer Biomarkers CCBIO, Department of Clinical Science, University of Bergen, Bergen, Norway
- * E-mail: (OS); (LAA)
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22
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Chen Y, Wang S, Liu T, Wu Y, Li JL, Li M. WAP four-disulfide core domain protein 2 gene(WFDC2) is a target of estrogen in ovarian cancer cells. J Ovarian Res 2016; 9:10. [PMID: 26928556 PMCID: PMC4770698 DOI: 10.1186/s13048-015-0210-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Accepted: 12/23/2015] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND WAP four-disulfide core domain protein 2 (WFDC2) shows a tumor-restricted upregulated pattern of expression in ovarian cancer. METHODS We investigated the role of estradiol (E2) on cell growth in estrogen-sensitive or estrogen-insensitive ovarian cancer cell lines. Real-time (RT)-PCR and western blotting were used to examine the expression of WFDC2 at RNA and protein levels. Growth traits of cells transfected with WFDC2-shRNA or blank control were assessed using MMT arrays. Cell apoptosis was analyzed using annexin V-FITC/PI and flow cytometry. Estrogen receptor expression was evaluated using RT-PCR and flow cytometry. Apoptosis-related proteins induced by E2 directly and indirectly were determined using an antibody array comparing cells transfected with WFDC2- shRNA or a blank control. RESULTS High-dose (625 ng/ml) E2 increased the expression of WFDC2 in HO8910 cells at both the mRNA and protein levels. However, E2 had no effect on WFDC2 expression in estrogen-insensitive SKOV3 cells. Of interest, knockdown of WFDC2 enabled a considerable estrogen response in SKOV3 cells in terms of proliferation, similar to estrogen-responsive HO8910 cells. This transformation of SKOV3 cells into an estrogen-responsive phenotype was accompanied by upregulation of estrogen receptor beta (ERß) and an effect on cell apoptosis under E2 treatment by regulating genes related to cell proliferation and apoptosis. CONCLUSIONS We postulate that increased WFDC2 expression plays an important role in altering the estrogen pathway in ovarian cancer, and the identification of WFDC2 as a new player in endocrine-related cancer encourages further studies on the significance of this gene in cancer development and therapy.
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Affiliation(s)
- Yao Chen
- School of Biotechnology, Southern Medical University, 1023 Shatainan Road, Guangzhou, 510515, China.
| | - Suihai Wang
- School of Biotechnology, Southern Medical University, 1023 Shatainan Road, Guangzhou, 510515, China.
| | - Tiancai Liu
- School of Biotechnology, Southern Medical University, 1023 Shatainan Road, Guangzhou, 510515, China.
| | - Yingsong Wu
- School of Biotechnology, Southern Medical University, 1023 Shatainan Road, Guangzhou, 510515, China.
| | - Ji-Liang Li
- School of Biotechnology, Southern Medical University, 1023 Shatainan Road, Guangzhou, 510515, China. .,Molecular Oncology Laboratories, Department of Oncology, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, OX3 9DS, UK.
| | - Ming Li
- School of Biotechnology, Southern Medical University, 1023 Shatainan Road, Guangzhou, 510515, China.
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23
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The Clinical Significance of Phosphorylated Heat Shock Protein 27 (HSPB1) in Pancreatic Cancer. Int J Mol Sci 2016; 17:ijms17010137. [PMID: 26805817 PMCID: PMC4730376 DOI: 10.3390/ijms17010137] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Revised: 01/14/2016] [Accepted: 01/15/2016] [Indexed: 12/14/2022] Open
Abstract
Pancreatic cancer is one of most aggressive forms of cancer. After clinical detection it exhibits fast metastatic growth. Heat shock protein 27 (HSP27; HSPB1) has been characterized as a molecular chaperone which modifies the structures and functions of other proteins in cells when they are exposed to various stresses, such as chemotherapy. While the administration of gemcitabine, an anti-tumor drug, has been the standard treatment for patients with advanced pancreatic cancer, accumulating evidence shows that HSP27 plays a key role in the chemosensitivity to gemcitabine. In addition, phosphorylated HSP27 induced by gemcitabine has been associated with the inhibition of pancreatic cancer cell growth. In this review, we summarize the role of phosphorylated HSP27, as well as HSP27, in the regulation of chemosensitivity in pancreatic cancer.
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24
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Jump in the fire--heat shock proteins and their impact on ovarian cancer therapy. Crit Rev Oncol Hematol 2015; 97:152-6. [PMID: 26318096 DOI: 10.1016/j.critrevonc.2015.08.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2015] [Accepted: 08/05/2015] [Indexed: 01/11/2023] Open
Abstract
Ovarian cancer (OC) is a major problem in gynecological oncology. Options for diagnosis and treatment of advanced stages and thus for patient prognosis have not been improved substantially over the past decades. Heat shock proteins (HSP) are characterized as stress-induced molecular chaperones performing cell survival factor functions. In cancer cells, various crucial and clinically important cell responses are vitally influenced and modulated by HSPs, e.g., cell growth and treatment resistance. Despite the limited knowledge on HSPs in OC progression, their roles as biomarkers, prognostic factors and their drug target properties appears promising for future clinical applications and therapeutic approaches.
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25
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Pai HC, Kumar S, Shen CC, Liou JP, Pan SL, Teng CM. MT-4 suppresses resistant ovarian cancer growth through targeting tubulin and HSP27. PLoS One 2015; 10:e0123819. [PMID: 25874627 PMCID: PMC4397017 DOI: 10.1371/journal.pone.0123819] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Accepted: 03/07/2015] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVE In this study, the anticancer mechanisms of MT-4 were examined in A2780 and multidrug-resistant NCI-ADR/res human ovarian cancer cell lines. METHODS To evaluate the activity of MT-4, we performed in vitro cell viability and cell cycle assays and in vivo xenograft assays. Immunoblotting analysis was carried out to evaluate the effect of MT-4 on ovarian cancer. Tubulin polymerization was determined using a tubulin binding assay. RESULTS MT-4 (2-Methoxy-5-[2-(3,4,5-trimethoxy-phenyl)-ethyl]-phenol), a derivative of moscatilin, can inhibit both sensitive A2780 and multidrug-resistant NCI-ADR/res cell growth and viability. MT-4 inhibited tubulin polymerization to induce G2/M arrest followed by caspase-mediated apoptosis. Further studies indicated that MT-4 is not a substrate of P-glycoprotein (p-gp). MT-4 also caused G2/M cell cycle arrest, accompanied by the upregulation of cyclin B, p-Thr161 Cdc2/p34, polo-like kinase 1 (PLK1), Aurora kinase B, and phospho-Ser10-histone H3 protein levels. In addition, we found that p38 MAPK pathway activation was involved in MT-4-induced apoptosis. Most importantly, MT-4 also decreased heat shock protein 27 expression and reduced its interaction with caspase-3, which inured cancer cells to chemotherapy resistance. Treatment of cells with SB203580 or overexpression of dominant negative (DN)-p38 or wild-type HSP27 reduced PARP cleavage caused by MT-4. MT-4 induced apoptosis through regulation of p38 and HSP27. Our xenograft models also show the in vivo efficacy of MT-4. MT-4 inhibited both A2780 and NCI-ADR/res cell growth in vitro and in vivo. CONCLUSION These findings indicate that MT-4 could be a potential lead compound for the treatment of multidrug-resistant ovarian cancer.
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Affiliation(s)
- Hui Chen Pai
- Pharmacological Institute, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Sunil Kumar
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | | | - Jing Ping Liou
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Shiow Lin Pan
- Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei, Taiwan
| | - Che Ming Teng
- Pharmacological Institute, College of Medicine, National Taiwan University, Taipei, Taiwan
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Matsunaga A, Ishii Y, Tsuruta M, Okabayashi K, Hasegawa H, Kitagawa Y. Inhibition of heat shock protein 27 phosphorylation promotes sensitivity to 5-fluorouracil in colorectal cancer cells. Oncol Lett 2014; 8:2496-2500. [PMID: 25364415 PMCID: PMC4214436 DOI: 10.3892/ol.2014.2580] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2014] [Accepted: 08/28/2014] [Indexed: 11/13/2022] Open
Abstract
The aim of the present study was to investigate whether the inhibition of HSP27 phosphorylation, which affects certain cellular functions, modulates sensitivity to 5-fluorouracil (5-FU) in colorectal cancer cells. Exposure to 5-FU in HCT116 and HCT15 cells expressing high levels of HSP27 with a low 5-FU sensitivity caused a minimal change in HSP27 expression, but induced the upregulation of HSP27 phosphorylation, particularly at Ser78. By contrast, exposure to 5-FU in HT29 cells expressing a low level of HSP27 with a high 5-FU sensitivity marginally increased HSP27 expression, with minimal phosphorylation. Treatment with a selective inhibitor, p38 mitogen-activated protein kinase (MAPK; SB203580), caused the dose-dependent suppression of HSP27 phosphorylation, which was upregulated by 5-FU, reducing the half maximal inhibitory concentration values of 5-FU in the HCT116 and HCT15 cells. However, treatment with SB203580 exhibited no significant effect on cell growth or survival. In conclusion, this study indicated that the inhibition of HSP27 phosphorylation by a selective inhibitor of p38 MAPK promotes 5-FU sensitivity without causing cytotoxicity in colorectal cancer cells.
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Affiliation(s)
- Atsushi Matsunaga
- Department of Surgery, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Yoshiyuki Ishii
- Department of Surgery, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Masashi Tsuruta
- Department of Surgery, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Koji Okabayashi
- Department of Surgery, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Hirotoshi Hasegawa
- Department of Surgery, Keio University School of Medicine, Tokyo 160-8582, Japan
| | - Yuko Kitagawa
- Department of Surgery, Keio University School of Medicine, Tokyo 160-8582, Japan
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27
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Liu X, Cui X, Shan N, Li Y, Fang X, Ding M, Wang X. Downregulation of the H-2Kd gene by siRNA affects the cytotoxicity of murine LAK cells. Cancer Cell Int 2013; 13:112. [PMID: 24206544 PMCID: PMC3827616 DOI: 10.1186/1475-2867-13-112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2013] [Accepted: 11/04/2013] [Indexed: 01/09/2023] Open
Abstract
To investigate the effect of the H-2Kd gene on the lymphocyte membrane, we constructed a small interfering RNA (siRNA) that targets the H-2Kd gene and compared the cytotoxicity of mouse lymphokine-activated killer (LAK) cells with different H-2Kd expression states. H-2Kd-targeting siRNA was transfected into spleen lymphocytes of BALB/C mice. Flow cytometry (FCM) was then performed to examine the expression of the H-2Kd gene in the transfected and control cells. Additionally, the cytotoxicity of the transfected cells toward the H22 and K562 cell lines was evaluated in vitro using the LDH release assay. H-2Kd-targeting siRNA significantly reduced the expression levels of the target protein, whereas pure transMessenger and non-silencing siRNA did not inhibit H-2Kd expression at the concentrations tested. The cytotoxicity of siRNA-treated LAK cells toward H22 and K562 cells was reduced significantly. The knockdown of H-2Kd gene expression by siRNA may be associated with LAK cell cytotoxicity toward neoplasm cell lines.
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Affiliation(s)
| | | | | | | | | | | | - Xin Wang
- Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong University, 324 Jing Wu Rd, Jinan, Shandong 250021, China.
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Pavan S, Musiani D, Torchiaro E, Migliardi G, Gai M, Di Cunto F, Erriquez J, Olivero M, Di Renzo MF. HSP27 is required for invasion and metastasis triggered by hepatocyte growth factor. Int J Cancer 2013; 134:1289-99. [DOI: 10.1002/ijc.28464] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2013] [Revised: 07/29/2013] [Accepted: 08/14/2013] [Indexed: 01/10/2023]
Affiliation(s)
- Simona Pavan
- Department of Oncology; University of Torino, School of Medicine; Torino Italy
- Laboratory of Cancer Genetics; Institute for Cancer Research at; Candiolo Torino Italy
| | - Daniele Musiani
- Department of Oncology; University of Torino, School of Medicine; Torino Italy
- Laboratory of Cancer Genetics; Institute for Cancer Research at; Candiolo Torino Italy
| | - Erica Torchiaro
- Department of Oncology; University of Torino, School of Medicine; Torino Italy
- Laboratory of Cancer Genetics; Institute for Cancer Research at; Candiolo Torino Italy
| | - Giorgia Migliardi
- Department of Oncology; University of Torino, School of Medicine; Torino Italy
- Laboratory of Molecular Pharmacology; Institute for Cancer Research at; Candiolo Torino Italy
| | - Marta Gai
- Department of Molecular Biotechnology and Health Sciences Molecular Biotechnology Center; University of Torino; Torino Italy
| | - Ferdinando Di Cunto
- Department of Molecular Biotechnology and Health Sciences Molecular Biotechnology Center; University of Torino; Torino Italy
| | - Jessica Erriquez
- Laboratory of Cancer Genetics; Institute for Cancer Research at; Candiolo Torino Italy
| | - Martina Olivero
- Department of Oncology; University of Torino, School of Medicine; Torino Italy
- Laboratory of Cancer Genetics; Institute for Cancer Research at; Candiolo Torino Italy
| | - Maria Flavia Di Renzo
- Department of Oncology; University of Torino, School of Medicine; Torino Italy
- Laboratory of Cancer Genetics; Institute for Cancer Research at; Candiolo Torino Italy
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29
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Zhong B, Chennamaneni S, Lama R, Yi X, Geldenhuys WJ, Pink JJ, Dowlati A, Xu Y, Zhou A, Su B. Synthesis and anticancer mechanism investigation of dual Hsp27 and tubulin inhibitors. J Med Chem 2013; 56:5306-20. [PMID: 23767669 DOI: 10.1021/jm4004736] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Heat shock protein 27 (Hsp27) is a chaperone protein, and its expression is increased in response to various stress stimuli including anticancer chemotherapy, which allows the cells to survive and causes drug resistance. We previously identified lead compounds that bound to Hsp27 and tubulin via proteomic approaches. Systematic ligand based optimization in the current study significantly increased the cell growth inhibition and apoptosis inducing activities of the compounds. Compared to the lead compounds, one of the new derivatives exhibited much better potency to inhibit tubulin polymerization but a decreased activity to inhibit Hsp27 chaperone function, suggesting that the structural modification dissected the dual targeting effects of the compound. The most potent compounds 20 and 22 exhibited strong cell proliferation inhibitory activities at subnanomolar concentration against 60 human cancer cell lines conducted by Developmental Therapeutic Program at the National Cancer Institute and represented promising candidates for anticancer drug development.
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Affiliation(s)
- Bo Zhong
- Department of Chemistry, College of Sciences and Health Professions, Cleveland State University , 2121 Euclid Avenue, Cleveland, Ohio 44115, United States
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LI MIN, YIN JIE, MAO NING, PAN LINGYA. Upregulation of phosphorylated cofilin 1 correlates with taxol resistance in human ovarian cancer in vitro and in vivo. Oncol Rep 2012; 29:58-66. [DOI: 10.3892/or.2012.2078] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2012] [Accepted: 08/13/2012] [Indexed: 11/06/2022] Open
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31
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HAYASHI RYOHEI, ISHII YOSHIYUKI, OCHIAI HIROKI, MATSUNAGA ATSUSHI, ENDO TAKASHI, HASEGAWA HIROTOSHI, KITAGAWA YUKO. Suppression of heat shock protein 27 expression promotes 5-fluorouracil sensitivity in colon cancer cells in a xenograft model. Oncol Rep 2012; 28:1269-74. [DOI: 10.3892/or.2012.1935] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2012] [Accepted: 06/21/2012] [Indexed: 11/06/2022] Open
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32
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Ahn J, Won M, Choi JH, Kyun ML, Cho HS, Park HM, Kang CM, Chung KS. Small heat-shock protein Hsp9 has dual functions in stress adaptation and stress-induced G2-M checkpoint regulation via Cdc25 inactivation in Schizosaccharomyces pombe. Biochem Biophys Res Commun 2012; 417:613-8. [DOI: 10.1016/j.bbrc.2011.12.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2011] [Accepted: 12/03/2011] [Indexed: 10/14/2022]
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33
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Identification of Cervical Cancer Proteins Associated With Treatment With Paclitaxel and Cisplatin in Patients. Int J Gynecol Cancer 2011; 21:1452-7. [DOI: 10.1097/igc.0b013e31822491d0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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34
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Alteration of protein folding and degradation in motor neuron diseases: Implications and protective functions of small heat shock proteins. Prog Neurobiol 2011; 97:83-100. [PMID: 21971574 DOI: 10.1016/j.pneurobio.2011.09.009] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2011] [Revised: 09/16/2011] [Accepted: 09/20/2011] [Indexed: 12/12/2022]
Abstract
Motor neuron diseases (MNDs) are neurodegenerative disorders that specifically affect the survival and function of upper and/or lower motor neurons. Since motor neurons are responsible for the control of voluntary muscular movement, MNDs are characterized by muscle spasticity, weakness and atrophy. Different susceptibility genes associated with an increased risk to develop MNDs have been reported and several mutated genes have been linked to hereditary forms of MNDs. However, most cases of MNDs occur in sporadic forms and very little is known on their causes. Interestingly, several molecular mechanisms seem to participate in the progression of both the inherited and sporadic forms of MNDs. These include cytoskeleton organization, mitochondrial functions, DNA repair and RNA synthesis/processing, vesicle trafficking, endolysosomal trafficking and fusion, as well as protein folding and protein degradation. In particular, accumulation of aggregate-prone proteins is a hallmark of MNDs, suggesting that the protein quality control system (molecular chaperones and the degradative systems: ubiquitin-proteasome-system and autophagy) are saturated or not sufficient to allow the clearance of these altered proteins. In this review we mainly focus on the MNDs associated with disturbances in protein folding and protein degradation and on the potential implication of a specific class of molecular chaperones, the small heat shock proteins (sHSPs/HSPBs), in motor neuron function and survival. How boosting of specific HSPBs may be a potential useful therapeutic approach in MNDs and how mutations in specific HSPBs can directly cause motor neuron degeneration is discussed.
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35
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Jego G, Hazoumé A, Seigneuric R, Garrido C. Targeting heat shock proteins in cancer. Cancer Lett 2010; 332:275-85. [PMID: 21078542 DOI: 10.1016/j.canlet.2010.10.014] [Citation(s) in RCA: 319] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2010] [Revised: 09/24/2010] [Accepted: 10/15/2010] [Indexed: 12/12/2022]
Abstract
Heat shock proteins (HSPs) HSP27, HSP70 and HSP90 are powerful chaperones. Their expression is induced in response to a wide variety of physiological and environmental insults including anti-cancer chemotherapy, thus allowing the cell to survive to lethal conditions. Different functions of HSPs have been described to account for their cytoprotective function, including their role as molecular chaperones as they play a central role in the correct folding of misfolded proteins, but also their anti-apoptotic properties. HSPs are often overexpressed in cancer cells and this constitutive expression is necessary for cancer cells' survival. HSPs may have oncogene-like functions and likewise mediate "non-oncogene addiction" of stressed tumor cells that must adapt to a hostile microenvironment, thereby becoming dependent for their survival on HSPs. HSP-targeting drugs have therefore emerged as potential anti-cancer agents. This review describes the different molecules and approaches being used or proposed in cancer therapy based on the in inhibition of HSP90, HSP70 and HSP27.
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Affiliation(s)
- Gaëtan Jego
- INSERM U866, 7, Boulevard Jeanne d'Arc, 21033 Dijon, France
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36
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Zhang D, Putti TC. Over-expression of ERp29 attenuates doxorubicin-induced cell apoptosis through up-regulation of Hsp27 in breast cancer cells. Exp Cell Res 2010; 316:3522-31. [PMID: 20833165 DOI: 10.1016/j.yexcr.2010.08.014] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2010] [Revised: 08/27/2010] [Accepted: 08/29/2010] [Indexed: 12/15/2022]
Abstract
The endoplasmic reticulum protein 29 (ERp29) has a critical role in regulating protein folding, maturation and secretion. However, its role in carcinogenesis remains elusive. Recently, we reported that ERp29 is a novel tumor suppressor and regulates mesenchymal-epithelial transition in MDA-MB-231 breast cancer cells. Here, we investigated whether ERp29 plays a role in the response of breast cancer cells to chemotherapeutic agents. We found that expression of ERp29 increased the resistance to doxorubicin, but not cisplatin and paclitaxel, and decreased the doxorubicin-induced cell apoptosis in MDA-MB-231 cells, whereas knockdown of ERp29 in MCF-7 cells increased the doxorubicin cytotoxicity. A proteomics study identified up-regulation of Hsp27 and down-regulation of stathmin-1, galectin and prohibitin in the doxorubicin-resistant, ERp29 over-expressing MDA-MB-231 cells. Further, we demonstrated that ERp29 up-regulated expression of Hsp27 by down-regulating eukaryotic translational initiation factor 2α (eIF2α). When Hsp27 was knocked down by siRNA in the doxorubicin-resistant, ERp29 over-expressing MDA-MB-231 cells and parental MCF-7 cells, cell viability was significantly decreased and doxorubicin-induced cell apoptosis was enhanced. These results indicate that Hsp27 is involved in the ERp29-mediated resistance to doxorubicin. Therefore, targeting of Hsp27, with a combination of other chemotherapeutic agents, is a rational strategy in treating doxorubicin-resistant cancer cells.
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Affiliation(s)
- Daohai Zhang
- Department of Pathology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
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