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Cillo U, Carraro A, Avolio AW, Cescon M, Di Benedetto F, Giannelli V, Magistri P, Nicolini D, Vivarelli M, Lanari J. Immunosuppression in liver transplant oncology: position paper of the Italian Board of Experts in Liver Transplantation (I-BELT). Updates Surg 2024; 76:725-741. [PMID: 38713396 DOI: 10.1007/s13304-024-01845-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 07/31/2023] [Indexed: 05/08/2024]
Abstract
Liver transplant oncology (TO) represents an area of increasing clinical and scientific interest including a heterogeneous group of clinical-pathological settings. Immunosuppressive management after LT is a key factor relevantly impacting result. However, disease-related guidance is still lacking, and many open questions remain in the field. Based on such a substantial lack of solid evidences, the Italian Board of Experts in Liver Transplantation (I-BELT) (a working group including representatives of all national transplant centers), unprecedently promoted a methodologically sound consensus conference on the topic, based on the GRADE approach. The group final recommendations are herein presented and commented. The 18 PICOs and Statements and their levels of evidence and grades of recommendation are reported and grouped into seven areas: (1) risk stratification by histopathological and bio-molecular parameters and role of mTORi post-LT; (2) steroids and HCC recurrence; (3) management of immunosuppression when HCC recurs after LT; (4) mTORi monotherapy; (5) machine perfusion and HCC recurrence after LT; (6) physiopathology of tumor-infiltrating lymphocytes and immunosuppression, the role of inflammation; (7) immunotherapy in liver transplanted patients. The interest in mammalian targets of rapamycin inhibitors (mTORi), for steroid avoidance and the need for a reduction to CNI exposure emerged from the consensus process. A selected list of unmet needs prompting further investigations have also been developed. The so far heterogeneous and granular approach to immunosuppression in oncologic patients deserves greater efforts for a more standardized therapeutic response to the different clinical scenarios. This consensus process makes a first unprecedented step in this direction, to be developed on a larger scale.
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Affiliation(s)
- Umberto Cillo
- Department of Surgical, Oncological and Gastroenterological Sciences, General Surgery 2 Hepato-Pancreato-Biliary Surgery and Liver Transplantation, Padua University Hospital, Via Giustiniani 2, 34128, Padua, PD, Italy.
| | - Amedeo Carraro
- Liver Transplant Unit, Department of Surgery and Oncology, University Hospital Trust of Verona, Verona, Italy
| | - Alfonso W Avolio
- Department of General Surgery and Liver Transplantation, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
| | - Matteo Cescon
- General Surgery and Transplantation Unit, Department of Medical and Surgical Sciences, Azienda Ospedaliero-Universitaria-Policlinico S.Orsola-Malpighi, Bologna, Italy
| | - Fabrizio Di Benedetto
- Hepatopancreatobiliary Surgery and Liver Transplantation Unit, University of Modena and Reggio Emilia, Modena, Italy
| | - Valerio Giannelli
- Liver Unit, Department of Liver Transplant, Azienda Ospedaliera San Camillo Forlanini, Rome, Italy
| | - Paolo Magistri
- Hepatopancreatobiliary Surgery and Liver Transplantation Unit, University of Modena and Reggio Emilia, Modena, Italy
| | - Daniele Nicolini
- Hepatobiliary and Abdominal Transplantation Surgery, Department of Experimental and Clinical Medicine, Riuniti Hospital, Polytechnic University of Marche, Ancona, Italy
| | - Marco Vivarelli
- Hepatobiliary and Abdominal Transplantation Surgery, Department of Experimental and Clinical Medicine, Riuniti Hospital, Polytechnic University of Marche, Ancona, Italy
| | - Jacopo Lanari
- Department of Surgical, Oncological and Gastroenterological Sciences, General Surgery 2 Hepato-Pancreato-Biliary Surgery and Liver Transplantation, Padua University Hospital, Via Giustiniani 2, 34128, Padua, PD, Italy
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Xie X, Zhang N, Li X, Huang H, Peng C, Huang W, Foster LJ, He G, Han B. Small-molecule dual inhibitors targeting heat shock protein 90 for cancer targeted therapy. Bioorg Chem 2023; 139:106721. [PMID: 37467620 DOI: 10.1016/j.bioorg.2023.106721] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 06/21/2023] [Accepted: 07/06/2023] [Indexed: 07/21/2023]
Abstract
Heat shock protein 90, also known as Hsp90, is an extensively preserved molecular chaperone that performs a critical function in organizing various biological pathways and cellular operations. As a potential drug target, Hsp90 is closely linked to cancer. Hsp90 inhibitors are a class of drugs that have been extensively studied in preclinical models and have shown promise in a variety of diseases, especially cancer. However, Hsp90 inhibitors have encountered several challenges in clinical development, such as low efficacy, toxicity, or drug resistance, few Hsp90 small molecule inhibitors have been approved worldwide. Nonetheless, combining Hsp90 inhibitors with other tumor inhibitors, such as HDAC inhibitors, tubulin inhibitors, and Topo II inhibitors, has been shown to have synergistic antitumor effects. Consequently, the development of Hsp90 dual-target inhibitors is an effective strategy in cancer treatment, as it enhances potency while reducing drug resistance. This article provides an overview of Hsp90's domain structure and biological functions, as well as a discussion of the design, discovery, and structure-activity relationships of Hsp90 dual inhibitors, aiming to provide insights into clinical drug research from a medicinal chemistry perspective and discover novel Hsp90 dual inhibitors.
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Affiliation(s)
- Xin Xie
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, College of Medical Technology and School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; Michael Smith Laboratories, University of British Columbia, Vancouver V6T 1Z4, Canada
| | - Nan Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, College of Medical Technology and School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China; Department of Dermatology & Venereology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xiang Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, College of Medical Technology and School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - He Huang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, College of Medical Technology and School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Cheng Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, College of Medical Technology and School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Wei Huang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, College of Medical Technology and School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Leonard J Foster
- Michael Smith Laboratories, University of British Columbia, Vancouver V6T 1Z4, Canada.
| | - Gu He
- Department of Dermatology & Venereology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China.
| | - Bo Han
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, College of Medical Technology and School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
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CCL3 Promotes Proliferation of Colorectal Cancer Related with TRAF6/NF-κB Molecular Pathway. CONTRAST MEDIA & MOLECULAR IMAGING 2022; 2022:2387192. [PMID: 35935327 PMCID: PMC9296340 DOI: 10.1155/2022/2387192] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 05/28/2022] [Accepted: 06/16/2022] [Indexed: 11/25/2022]
Abstract
Chemokine C-C motif chemokine ligand 3 (CCL3) plays an important role in the invasion and metastasis of malignant tumors. For developing new therapeutic targets and antitumor drugs, the effect of chemokine CCL3 and the related cytokine network on colorectal cancer should be investigated. This study used cell, tissue, and animal experiments to prove that CCL3 is highly expressed in colorectal cancer and confirmed that CCL3 can promote the proliferation of cancer cells, and its expression is closely related to TRAF6/NF-κB molecular pathway. In addition, protein chip technology was used to examine colorectal cancer tissue samples and identify the key factors of chemokine CCL3 and the toll-like receptors/nuclear factor-κB (TLR/NF-κB) pathway in cancer and metastatic lymph nodes. Furthermore, the lentiviral vector technology was employed for transfection to construct interference and overexpression cell lines. The experimental results reveal the mechanism of CCL3 and TNF receptor-associated factor 6 (TRAF6)/NF-κB pathway-related factors and their effects on the proliferation of colon cancer cells. Finally, the expression and significance of CCL3 in colorectal cancer tissues and its correlation with clinical pathology were studied by immunohistochemistry. Also, the results confirmed that CCL3 and C-C motif chemokine receptor 5 (CCR5) were expressed in adjacent tissues, colorectal cancer tissues, and metastatic cancer. The expression level was correlated with the clinical stage and nerve invasion. The expression of chemokine CCL3 and receptor CCR5 was positively correlated with the expression of TRAF6 and NF-κB and could promote the proliferation, invasion, and migration of colorectal cancer cells through TRAF6 and NF-κB.
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Wakasa H, Tsugami Y, Koyama T, Han L, Nishimura T, Isobe N, Kobayashi K. Adverse Effects of High Temperature On Mammary Alveolar Development In Vitro. J Mammary Gland Biol Neoplasia 2022; 27:155-170. [PMID: 35581442 DOI: 10.1007/s10911-022-09518-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 04/26/2022] [Indexed: 10/18/2022] Open
Abstract
In the mammary glands during pregnancy, the alveolar buds are first branched from the mammary ducts after which they form the alveolar luminal structure for milk production postparturition. Body temperature could increase for several reasons, such as infectious disease and heat stress. We have previously reported that high temperature adversely effects on the lactation capacity of mouse mammary epithelial cells (MECs). However, it remains unclear how high temperature influences mammary morophogenesis during pregnancy. In this study, we investigated the effects of high temperature on this mammary alveolar development process using two types of culture models including embedded organoids of MECs in Matrigel; these models reproduced mammary alveolar bud induction and alveolar luminal formation. Results showed that a culture temperature of 41 °C repressed alveolar bud induction and inhibited alveolar luminal formation. In addition, the treatment at 41 °C decreased the number of proliferating mammary epithelial cells but did not affect cell migration. Levels of phosphorylated Akt, -ERK1/2, -HSP90, and -HSP27 were increased in organoids cultured at 41 °C. The specific inhibitors of HSP90 and HSP27 exacerbated the disruption of organoids at 41 °C but not at 37 °C. Furthermore, the organoids precultured at 37 and 41 °C in the alveolar luminal formation model showed differences in the expression levels of caseins and tight junction proteins, which express in MECs in lactating mammary glands, after induction of MEC differentiation by prolactin and dexamethasone treatment in vitro. These results suggest that elevated temperature directly hinders mammary alveolar development; however, heat shock proteins may mitigate the adverse effects of high temperatures.
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Affiliation(s)
- Haruka Wakasa
- Laboratory of Cell and Tissue Biology, Research Faculty of Agriculture, Hokkaido University, North 9, West 9, 060-8589, Sapporo, Japan
| | - Yusaku Tsugami
- Laboratory of Animal Histophysiology, Graduate School of Integrated Science for Life Faculty of Applied Biological Science, Hiroshima University, 1-4-4, Kagamiyama, 739-8528, Higashi-Hiroshima, Japan
| | - Taku Koyama
- Laboratory of Cell and Tissue Biology, Research Faculty of Agriculture, Hokkaido University, North 9, West 9, 060-8589, Sapporo, Japan
| | - Liang Han
- Laboratory of Cell and Tissue Biology, Research Faculty of Agriculture, Hokkaido University, North 9, West 9, 060-8589, Sapporo, Japan
| | - Takanori Nishimura
- Laboratory of Cell and Tissue Biology, Research Faculty of Agriculture, Hokkaido University, North 9, West 9, 060-8589, Sapporo, Japan
| | - Naoki Isobe
- Laboratory of Animal Histophysiology, Graduate School of Integrated Science for Life Faculty of Applied Biological Science, Hiroshima University, 1-4-4, Kagamiyama, 739-8528, Higashi-Hiroshima, Japan
| | - Ken Kobayashi
- Laboratory of Cell and Tissue Biology, Research Faculty of Agriculture, Hokkaido University, North 9, West 9, 060-8589, Sapporo, Japan.
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Hung TH, Hung JT, Wu CE, Huang Y, Lee CW, Yeh CT, Chung YH, Lo FY, Lai LC, Tung JK, Yu J, Yeh CN, Yu AL. Globo H Is a Promising Theranostic Marker for Intrahepatic Cholangiocarcinoma. Hepatol Commun 2022; 6:194-208. [PMID: 34558839 PMCID: PMC8710794 DOI: 10.1002/hep4.1800] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 07/09/2021] [Accepted: 07/14/2021] [Indexed: 12/29/2022] Open
Abstract
Recent studies support the development of cancer therapeutics to target Globo H-ceramide, the most prevalent tumor-associated carbohydrate antigen in epithelial cancers. Herein, we evaluated the expression of Globo H and its prognostic significance in intrahepatic cholangiocarcinoma (ICC) and conducted preclinical studies to assess the antitumor activity of Globo H-specific antibody in thioacetamide (TAA)-induced ICC in rats. Globo H-ceramide in tumor specimens was detected by immunohistochemistry (IHC) and mass spectrometry. Antitumor efficacy of anti-Globo H mAbVK9 was evaluated in TAA-induced ICC in rat. Natural killer (NK) cells and their related genes were analyzed by IHC and quantitative real-time polymerase chain reaction. Data mining revealed that B3GALT5 and FUT2, the key enzymes for Globo H biosynthesis, were significantly up-regulated in human ICC. In addition, Globo H expression was detected in 41% (63 of 155) of ICC tumor specimens by IHC staining, and validated by mass spectrometric analysis of two IHC-positive tumors. Patients with Globo H positive tumors had significantly shorter relapse-free survival (RFS) and overall survival (P = 0.0003 and P = 0.002, respectively). Multivariable Cox regression analysis identified Globo H expression as an independent unfavorable predictor for RFS (hazard ratio: 1.66, 95% confidence interval: 1.08-2.36, P = 0.02) in ICC. Furthermore, gradual emergence of Globo H in liver tissues over 6 months in TAA-treated rats recapitulated the multistage progression of ICC in vivo. Importantly, administration of anti-Globo H mAbVK9 in rats bearing TAA-induced ICC significantly suppressed tumor growth with increased NK cells in the tumor microenvironment. Conclusion: Globo H is a theranostic marker in ICC.
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Affiliation(s)
- Tsai-Hsien Hung
- Institute of Stem Cell and Translational Cancer Research, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
| | - Jung-Tung Hung
- Institute of Stem Cell and Translational Cancer Research, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
| | - Chiao-En Wu
- Department of Hematology-Oncology, Chang Gung Memorial Hospital, Chang Gung University, Taoyuan, Taiwan
| | - Yenlin Huang
- Department of Anatomic Pathology, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
- Chang Gung University, Taoyuan, Taiwan
| | - Chien-Wei Lee
- Institute of Stem Cell and Translational Cancer Research, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
| | - Chau-Ting Yeh
- Liver Research Center, Department of Hepato-Gastroenterology, Chang Gung Memorial Hospital and College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Yi-Hsiu Chung
- Department of Medical Research and Development, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Fei-Yun Lo
- Institute of Stem Cell and Translational Cancer Research, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
| | - Li-Chun Lai
- Institute of Stem Cell and Translational Cancer Research, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
| | - John K Tung
- Institute of Stem Cell and Translational Cancer Research, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
| | - John Yu
- Institute of Stem Cell and Translational Cancer Research, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei, Taiwan
- Chang Gung University, Taoyuan, Taiwan
| | - Chun-Nan Yeh
- Department of Surgery and Liver Research Center, Chang Gung Memorial Hospital, Chang Gung University, Taoyuan, Taiwan
| | - Alice L Yu
- Institute of Stem Cell and Translational Cancer Research, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan
- Department of Pediatrics, University of California in San Diego, San Diego, CA
- Chang Gung University, Taoyuan, Taiwan
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Poosekeaw P, Pairojkul C, Sripa B, Sa Ngiamwibool P, Iamsaard S, Sakonsinsiri C, Thanan R, Ungarreevittaya P. Adaptor protein XB130 regulates the aggressiveness of cholangiocarcinoma. PLoS One 2021; 16:e0259075. [PMID: 34780466 PMCID: PMC8592414 DOI: 10.1371/journal.pone.0259075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 10/12/2021] [Indexed: 12/15/2022] Open
Abstract
Cholangiocarcinoma (CCA) is a group of heterogenous malignancies arising from bile duct epithelium with distinct pathological features. Adaptor proteins have implicated in cell proliferation, migration, and invasion of different cancer cells. The objective of this study was to assess whether the adaptor protein XB130 (AFAP1L2) is a critical biological determinant of CCA outcome. XB130 expression levels were investigated in four CCA cell lines compared to an immortalized cholangiocyte cell line by Western blotting. Small interfering (si) RNA-mediated XB130 gene silencing was conducted to evaluate the effects of reduced XB130 expression on cell proliferation, migration, and invasion by MTT, transwell migration and cell invasion assay. The immunohistochemical quantification of XB130 levels were performed in surgically resected formalin-fixed, paraffin-embedded specimens obtained from 151 CCA patients. The relationship between XB130 expression and the clinicopathological parameters of CCA patients were analyzed. Our results showed that XB130 was highly expressed in KKU-213A cell line. Knockdown of XB130 using siRNA significantly decreased the proliferation, migration, and invasion properties of KKU-213A cells through the inhibition of PI3K/Akt pathway, suggesting that XB130 plays an important role in CCA progression. Moreover, elevated XB130 expression levels were positive relationship with lymphovascular space invasion (LVSI), intrahepatic type of CCA, high TNM staging (stage III, IV), high T classification (T3, T4), and lymph node metastasis. We provide the first evidence that the overexpression of XB130 is associated with tumorigenic properties of CCA cells, leading to CCA progression with aggressive clinical outcomes.
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Affiliation(s)
- Pirawan Poosekeaw
- Department of Pathology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Chawalit Pairojkul
- Department of Pathology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Banchob Sripa
- Department of Pathology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | | | - Sitthichai Iamsaard
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Chadamas Sakonsinsiri
- Department of Biochemistry, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
- Cholangiocarcinoma Research Institute, Khon Kaen University, Khon Kaen, Thailand
| | - Raynoo Thanan
- Department of Biochemistry, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
- Cholangiocarcinoma Research Institute, Khon Kaen University, Khon Kaen, Thailand
| | - Piti Ungarreevittaya
- Department of Pathology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
- * E-mail:
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Jiang TY, Pan YF, Wan ZH, Lin YK, Zhu B, Yuan ZG, Ma YH, Shi YY, Zeng TM, Dong LW, Tan YX, Wang HY. PTEN status determines chemosensitivity to proteasome inhibition in cholangiocarcinoma. Sci Transl Med 2021; 12:12/562/eaay0152. [PMID: 32967970 DOI: 10.1126/scitranslmed.aay0152] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 12/31/2019] [Accepted: 07/28/2020] [Indexed: 12/23/2022]
Abstract
Patient-derived xenografts (PDXs) and PDX-derived cells (PDCs) are useful in preclinical research. We performed a drug screening assay using PDCs and identified proteasome inhibitors as promising drugs for cholangiocarcinoma (CCA) treatment. Furthermore, we determined that phosphate and tensin homology deleted on chromosome ten (PTEN) deficiency promotes protein synthesis and proteasome subunit expression and proteolytic activity, creating a dependency on the proteasome for cancer cell growth and survival. Thus, targeting the proteasome machinery with the inhibitor bortezomib inhibited the proliferation and survival of CCA cells lacking functional PTEN. Therapeutic evaluation of PDXs, autochthonous mouse models, and patients confirmed this dependency on the proteasome. Mechanistically, we found that PTEN promoted the nuclear translocation of FOXO1, resulting in the increased expression of BACH1 and MAFF BACH1 and MAFF are transcriptional regulators that recognize the antioxidant response element, which is present in genes encoding proteasome subunits. PTEN induced the accumulation and nuclear translocation of these proteins, which directly repressed the transcription of genes encoding proteasome subunits. We revealed that the PTEN-proteasome axis is a potential target for therapy in PTEN-deficient CCA and other PTEN-deficient cancers.
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Affiliation(s)
- Tian-Yi Jiang
- International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute, Second Military Medical University, Shanghai 200438, China.,National Center for Liver Cancer, Shanghai 201805, China
| | - Yu-Fei Pan
- National Center for Liver Cancer, Shanghai 201805, China.,Shanghai Key Laboratory of Hepato-biliary Tumor Biology, Shanghai 200438, China
| | - Zheng-Hua Wan
- National Center for Liver Cancer, Shanghai 201805, China
| | - Yun-Kai Lin
- International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute, Second Military Medical University, Shanghai 200438, China.,National Center for Liver Cancer, Shanghai 201805, China
| | - Bin Zhu
- Department of Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200438, China
| | - Zhen-Gang Yuan
- Department of Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200438, China
| | - Yun-Han Ma
- International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute, Second Military Medical University, Shanghai 200438, China.,National Center for Liver Cancer, Shanghai 201805, China
| | - Yuan-Yuan Shi
- International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute, Second Military Medical University, Shanghai 200438, China
| | - Tian-Mei Zeng
- Department of Surgery, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200438, China
| | - Li-Wei Dong
- International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute, Second Military Medical University, Shanghai 200438, China. .,Shanghai Key Laboratory of Hepato-biliary Tumor Biology, Shanghai 200438, China
| | - Ye-Xiong Tan
- National Center for Liver Cancer, Shanghai 201805, China. .,Shanghai Key Laboratory of Hepato-biliary Tumor Biology, Shanghai 200438, China
| | - Hong-Yang Wang
- International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute, Second Military Medical University, Shanghai 200438, China. .,National Center for Liver Cancer, Shanghai 201805, China.,Shanghai Key Laboratory of Hepato-biliary Tumor Biology, Shanghai 200438, China.,State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200127, China.,Laboratory of Signaling Regulation and Targeting Therapy of Liver Cancer, Second Military Medical University & Ministry of Education, Shanghai 200438, China
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8
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Ubiquitin-conjugating enzyme E2T regulates cell proliferation and migration in cholangiocarcinoma. Anticancer Drugs 2021; 31:836-846. [PMID: 32796405 DOI: 10.1097/cad.0000000000000955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Ubiquitin-conjugating enzyme E2T (UBE2T) is overexpressed in several human cancer cells, but a role in cholangiocarcinoma (CAA) progression has not been investigated. We analyzed the expression of UBE2T in CAA tissues. Then, we generated UBE2T deregulation models in which it was overexpressed or silenced, and examined the effects on CAA malignant progression by flow cytometry, western blot, MTT assay, wound healing assay and transwell assay. We report the involvement of UBE2T in CAA malignant progression. UBE2T was found to be highly expressed in human CAA cells both in vitro and in vivo. Overexpression of UBE2T significantly enhanced epithelial-to-mesenchymal transition, proliferation, migration and invasion of CAA cells in vitro, while silencing UBE2T had opposing effects. Furthermore, UBE2T appears to exert its effects via the mammalian target of rapamycin (mTOR) pathway as the cellular effects caused by UBE2T overexpression are inhibited by the mTOR inhibitor rapamycin. Our findings suggest that UBE2T may have potential as a new therapeutic target for the prevention or treatment of CAA.
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9
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Song D, Guo M, Xu S, Song X, Bai B, Li Z, Chen J, An Y, Nie Y, Wu K, Wang S, Zhao Q. HSP90-dependent PUS7 overexpression facilitates the metastasis of colorectal cancer cells by regulating LASP1 abundance. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2021; 40:170. [PMID: 33990203 PMCID: PMC8120699 DOI: 10.1186/s13046-021-01951-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 04/15/2021] [Indexed: 01/21/2023]
Abstract
BACKGROUND Pseudouridine synthase (PUS) 7 is a member of the PUS family that catalyses pseudouridine formation. It has been shown to be involved in intellectual development and haematological malignancies. Nevertheless, the role and the underlying molecular mechanisms of PUS7 in solid tumours, such as colorectal cancer (CRC), remain unexplored. This study elucidated, for the first time, the role of PUS7 in CRC cell metastasis and the underlying mechanisms. METHODS We conducted immunohistochemistry, qPCR, and western blotting to quantify the expression of PUS7 in CRC tissues as well as cell lines. Besides, diverse in vivo and in vitro functional tests were employed to establish the function of PUS7 in CRC. RNA-seq and proteome profiling analysis were also applied to identify the targets of PUS7. PUS7-interacting proteins were further uncovered using immunoprecipitation and mass spectrometry. RESULTS Overexpression of PUS7 was observed in CRC tissues and was linked to advanced clinical stages and shorter overall survival. PUS7 silencing effectively repressed CRC cell metastasis, while its upregulation promoted metastasis, independently of the PUS7 catalytic activity. LASP1 was identified as a downstream effector of PUS7. Forced LASP1 expression abolished the metastasis suppression triggered by PUS7 silencing. Furthermore, HSP90 was identified as a client protein of PUS7, associated with the increased PUS7 abundance in CRC. NMS-E973, a specific HSP90 inhibitor, also showed higher anti-metastatic activity when combined with PUS7 repression. Importantly, in line with these results, in human CRC tissues, the expression of PUS7 was positively linked to the expression of HSP90 and LASP1, and patients co-expressing HSP90/PUS7/LASP1 showed a worse prognosis. CONCLUSIONS The HSP90-dependent PUS7 upregulation promotes CRC cell metastasis via the regulation of LASP1. Thus, targeting the HSP90/PUS7/LASP1 axis may be a novel approach for the treatment of CRC.
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Affiliation(s)
- Dan Song
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, 710032, Xi'an, Shaanxi Province, China
| | - Ming Guo
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, China
| | - Shuai Xu
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, 710032, Xi'an, Shaanxi Province, China
| | - Xiaotian Song
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, 710032, Xi'an, Shaanxi Province, China
| | - Bin Bai
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, 710032, Xi'an, Shaanxi Province, China
| | - Zhengyan Li
- Department of General Surgery, Center for Minimally Invasive Gastrointestinal Surgery, Southwest Hospital, Third Military Medical University, No. 30 Gao Tan Yan Road, Chongqing, 400038, China
| | - Jie Chen
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, 710032, Xi'an, Shaanxi Province, China
| | - Yanxin An
- Department of General Surgery, the First Affiliated Hospital of Xi 'an Medical University, No. 48 Fenghao West Road, Lianhu District, Xi'an, 710077, Shaanxi Province, China
| | - Yongzhan Nie
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, 710032, Xi'an, Shaanxi Province, China
| | - Kaichun Wu
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, 710032, Xi'an, Shaanxi Province, China
| | - Shiqi Wang
- Department of Gastrointestinal Surgery, Xijing Hospital of Digestive Diseases, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, Shaanxi Province, China.
| | - Qingchuan Zhao
- State key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, 710032, Xi'an, Shaanxi Province, China.
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10
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Tran AQ, Sullivan SA, Chan LLY, Yin Y, Sun W, Fang Z, Dugar S, Zhou C, Bae-Jump V. SPR965, a Dual PI3K/mTOR Inhibitor, as a Targeted Therapy in Ovarian Cancer. Front Oncol 2021; 10:624498. [PMID: 33659215 PMCID: PMC7919852 DOI: 10.3389/fonc.2020.624498] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Accepted: 12/14/2020] [Indexed: 11/30/2022] Open
Abstract
SPR965 is an inhibitor of PI3K and mTOR C1/C2 and has demonstrated anti-tumorigenic activity in a variety of solid tumors. We sought to determine the effects of SPR965 on cell proliferation and tumor growth in human serous ovarian cancer cell lines and a transgenic mouse model of high grade serous ovarian cancer (KpB model) and identify the underlying mechanisms by which SPR965 inhibits cell and tumor growth. SPR965 showed marked anti-proliferative activity by causing cell cycle arrest and inducing cellular stress in ovarian cancer cells. Treatment with SPR965 significantly inhibited tumor growth in KpB mice, accompanied by downregulation of Ki67 and VEGF and upregulation of Bip expression in ovarian tumors. SPR965 also inhibited adhesion and invasion through induction of the epithelial–mesenchymal transition process. As expected, downregulation of phosphorylation of AKT and S6 was observed in SPR965-treated ovarian cancer cells and tumors. Our results suggest that SPR965 has significant anti-tumorigenic effects in serous ovarian cancer in vitro and in vivo. Thus, SPR965 should be evaluated as a promising targeted agent in future clinical trials of ovarian cancer.
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Affiliation(s)
- Arthur-Quan Tran
- Division of Gynecologic Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Stephanie A Sullivan
- Division of Gynecologic Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Leo Li-Ying Chan
- Department of Advanced Technology R&D, Nexcelom Bioscience LLC, Lawrence, MA, United States
| | - Yajie Yin
- Division of Gynecologic Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Wenchuan Sun
- Division of Gynecologic Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Ziwei Fang
- Division of Gynecologic Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States.,Department of Gynecologic Oncology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
| | - Sundeep Dugar
- Sphaera Pharma Singapore Pte Ltd., Singapore, Singapore
| | - Chunxiao Zhou
- Division of Gynecologic Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States.,Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Victoria Bae-Jump
- Division of Gynecologic Oncology, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States.,Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
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11
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Wu T, Jiang X, Zhang X, Wu B, Xu B, Liu X, Zheng L, Wang Y. Intrahepatic Cholangiocarcinoma: State of the Art of FGFR Inhibitors. Cancer Control 2021; 28:1073274821989314. [PMID: 33618536 PMCID: PMC8482710 DOI: 10.1177/1073274821989314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 11/11/2020] [Accepted: 12/30/2020] [Indexed: 11/26/2022] Open
Abstract
OBJECTIVE Intrahepatic cholangiocarcinoma (iCCA), the second most common type of primary liver tumor, has an increasing incidence in the past few decades. iCCA is highly malignant, with a 5-year survival rate of approximately 5-10%. Surgical resection is usually the prescribed treatment for patients with early stage iCCA; however, patients are usually in an advanced stage iCCA upon diagnosis. Currently, targeted therapy combined with chemotherapy and other comprehensive treatment measures have been mainly adopted as palliative treatment measures. As a common candidate of targeted therapy, FGFR inhibitors have demonstrated their unique advantages in clinical trials. At present, the prospect of FGFR targeted therapy is encouraging. The landscape of FGFR inhibitors in iCCA is needed to be showed urgently. METHODS We searched relative reports of clinical trials on FGFR inhibitors in PubMed as well as Web of Science. We also concluded other available clinical trials of FGFR inhibitors (Data were collected from clinicaltrials.gov). RESULTS Several relatively effective targeted drugs are being used in clinical trials. Some preliminary results indicate the outlook of targeted therapy such as BGJ398, TAS120, and HSP90 inhibitors. CONCLUSIONS In summary, FGFR targeted therapy has broad prospects for the treatment of iCCA.
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Affiliation(s)
- Tianyu Wu
- Department of Hepatobiliary Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, People’s Republic of China
| | - Xiaoqing Jiang
- Surgical Intensive Care Unit, Nanfang Hospital, Southern Medical University, Guangzhou, People’s Republic of China
| | - Xin Zhang
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, People’s Republic of China
| | - Bodeng Wu
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, People’s Republic of China
| | - Bin Xu
- Department of Hepatobiliary Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, People’s Republic of China
| | - Xiaoliu Liu
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, People’s Republic of China
| | - Lei Zheng
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, People’s Republic of China
| | - Yu Wang
- Department of Hepatobiliary Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, People’s Republic of China
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12
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Wu YN, He LH, Bai ZT, Li X. NRP1 is a Prognostic Factor and Promotes the Growth and Migration of Cells in Intrahepatic Cholangiocarcinoma. Cancer Manag Res 2020; 12:7021-7032. [PMID: 32848461 PMCID: PMC7426061 DOI: 10.2147/cmar.s260091] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 07/08/2020] [Indexed: 12/17/2022] Open
Abstract
Background Neuropilin-1 (NRP-1) participates in cancer cell proliferation and metastasis as a multifunctional co-receptor by interacting with multiple signaling pathways. However, few studies have addressed the precise function and prognosis analysis of NRP1 in intrahepatic cholangiocarcinoma (ICC). We aimed to study the correlations between NRP1 and clinicopathological characteristics and NRP1 effect on ICC cell line functions. Methods NRP1 mRNA and its protein levels in human ICC tissues and cell lines were detected by IHC, qRT-PCR, and WB method. Transwell, wound healing, and CCK-8 assays were performed to verify the effects of NRP1 knockdown and overexpression on cell migration and proliferation capability. Results NRP1 proteins and mRNA levels increased in ICC tissues compared to those in paired adjacent non-tumor tissues. High NRP1 expression of ICC tissues was related to poor prognosis. NRP1 expression level was expected to be an independent prognosticator for overall survival and cumulative tumor recurrence, and was closely related to tumor number (P=0.047). Knockdown of NRP1 inhibited cell proliferation and migration capability of RBE cells in vitro, and NRP1 overexpression in 9810 cells accelerated proliferation and migration. Additionally, NRP1 may promote cell proliferation and migration in ICC via the FAK/PI3-K/AKT pathway. Conclusion As an oncogene, NRP1 may function as a candidate target and prognostic biomarker of value for ICC therapy.
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Affiliation(s)
- Yong-Na Wu
- Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou 730000, Gansu Province, People's Republic of China.,Key Laboratory of Biological Therapy and Regenerative Medicine Transformation Gansu Province, Lanzhou 730000, Gansu Province, People's Republic of China.,Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, Gansu Province, People's Republic of China.,University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Li-Hong He
- Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou 730000, Gansu Province, People's Republic of China.,Key Laboratory of Biological Therapy and Regenerative Medicine Transformation Gansu Province, Lanzhou 730000, Gansu Province, People's Republic of China.,The First Clinical Medical College, Lanzhou University, Lanzhou 730000, Gansu Province, People's Republic of China
| | - Zhong-Tian Bai
- Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou 730000, Gansu Province, People's Republic of China.,Key Laboratory of Biological Therapy and Regenerative Medicine Transformation Gansu Province, Lanzhou 730000, Gansu Province, People's Republic of China.,The First Clinical Medical College, Lanzhou University, Lanzhou 730000, Gansu Province, People's Republic of China
| | - Xun Li
- Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou 730000, Gansu Province, People's Republic of China.,Key Laboratory of Biological Therapy and Regenerative Medicine Transformation Gansu Province, Lanzhou 730000, Gansu Province, People's Republic of China.,The First Clinical Medical College, Lanzhou University, Lanzhou 730000, Gansu Province, People's Republic of China
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13
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Kim HJ, Gong MK, Yoon CY, Kang J, Yun M, Cho NH, Rha SY, Choi YD. Synergistic Antitumor Effects of Combined Treatment with HSP90 Inhibitor and PI3K/mTOR Dual Inhibitor in Cisplatin-Resistant Human Bladder Cancer Cells. Yonsei Med J 2020; 61:587-596. [PMID: 32608202 PMCID: PMC7329736 DOI: 10.3349/ymj.2020.61.7.587] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 05/14/2020] [Accepted: 05/21/2020] [Indexed: 01/21/2023] Open
Abstract
PURPOSE The current study aimed to investigate the synergistic antitumor effect of combined treatment with 17-DMAG (HSP90 inhibitor) and NVP-BEZ235 (PI3K/mTOR dual inhibitor) on cisplatin-resistant human bladder cancer cells. MATERIALS AND METHODS Human bladder cancer cells exhibiting cisplatin resistance (T24R2) were exposed to escalating doses of 17-DMAG (2.5-20 nM) with or without NVP-BEZ236 (0.5-4 μM) in combination with cisplatin. Antitumor effects were assessed by CCK-8 analysis. Based on the dose-response study, synergistic interactions between the two regimens were evaluated using clonogenic assay and combination index values. Flow cytometry and Western blot were conducted to analyze mechanisms of synergism. RESULTS Dose- and time-dependent antitumor effects for 17-DMAG were observed in both cisplatin-sensitive (T24) and cisplatin-resistant cells (T24R2). The antitumor effect of NVP-BEZ235, however, was found to be self-limiting. The combination of 17-DMAG and NVP-BEZ235 in a 1:200 fixed ratio showed a significant antitumor effect in cisplatin-resistant bladder cancer cells over a wide dose range, and clonogenic assay showed compatible results with synergy tests. Three-dimensional analysis revealed strong synergy between the two drugs with a synergy volume of 201.84 μM/mL²%. The combination therapy resulted in G1-phase cell cycle arrest and caspase-dependent apoptosis confirmed by the Western blot. CONCLUSION HSP90 inhibitor monotherapy and in combination with the PI3K/mTOR survival pathway inhibitor NVP-BEZ235 shows a synergistic antitumor effect in cisplatin-resistant bladder cancers, eliciting cell cycle arrest at the G1 phase and induction of caspase-dependent apoptotic pathway.
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Affiliation(s)
- Hyung Joon Kim
- Department of Urology, Myunggok Medical Research Institute, Konyang University College of Medicine, Daejeon, Korea
- Department of Medicine, Graduate School of Yonsei University College of Medicine, Seoul, Korea
| | - Mi Kyung Gong
- School of Dentistry, Pusan National University, Yangsan, Korea
- Department of Urology, Urological Science Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Cheol Yong Yoon
- Department of Urology, Urological Science Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Jaeku Kang
- Department of Pharmacology, College of Medicine, Konyang University, Daejeon, Korea
| | - Mijin Yun
- Department of Medicine, Graduate School of Yonsei University College of Medicine, Seoul, Korea
- Department of Nuclear Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Nam Hoon Cho
- Department of Medicine, Graduate School of Yonsei University College of Medicine, Seoul, Korea
- Department of Pathology, Yonsei University College of Medicine, Seoul, Korea
| | - Sun Young Rha
- Department of Medicine, Graduate School of Yonsei University College of Medicine, Seoul, Korea
- Division of Medical Oncology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Young Deuk Choi
- Department of Medicine, Graduate School of Yonsei University College of Medicine, Seoul, Korea
- Department of Urology, Urological Science Institute, Yonsei University College of Medicine, Seoul, Korea.
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14
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Yu L, Wei M, Li F. Longitudinal Analysis of Gene Expression Changes During Cervical Carcinogenesis Reveals Potential Therapeutic Targets. Evol Bioinform Online 2020; 16:1176934320920574. [PMID: 32489245 PMCID: PMC7241206 DOI: 10.1177/1176934320920574] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 03/24/2020] [Indexed: 01/06/2023] Open
Abstract
Despite advances in the treatment of cervical cancer (CC), the prognosis of patients with CC remains to be improved. This study aimed to explore candidate gene targets for CC. CC datasets were downloaded from the Gene Expression Omnibus database. Genes with similar expression trends in varying steps of CC development were clustered using Short Time-series Expression Miner (STEM) software. Gene functions were then analyzed using the Gene Ontology (GO) database and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis. Protein interactions among genes of interest were predicted, followed by drug-target genes and prognosis-associated genes. The expressions of the predicted genes were determined using real-time quantitative polymerase chain reaction (RT-qPCR) and Western blotting. Red and green profiles with upward and downward gene expressions, respectively, were screened using STEM software. Genes with increased expression were significantly enriched in DNA replication, cell-cycle-related biological processes, and the p53 signaling pathway. Based on the predicted results of the Drug-Gene Interaction database, 17 drug-gene interaction pairs, including 3 red profile genes (TOP2A, RRM2, and POLA1) and 16 drugs, were obtained. The Cancer Genome Atlas data analysis showed that high POLA1 expression was significantly correlated with prolonged survival, indicating that POLA1 is protective against CC. RT-qPCR and Western blotting showed that the expressions of TOP2A, RRM2, and POLA1 gradually increased in the multistep process of CC. TOP2A, RRM2, and POLA1 may be targets for the treatment of CC. However, many studies are needed to validate our findings.
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Affiliation(s)
- Lijun Yu
- Department of Gynecology, First Hospital of Shanxi Medical University, Taiyuan, China
| | - Meiyan Wei
- Department of Gynecology, First Hospital of Shanxi Medical University, Taiyuan, China
| | - Fengyan Li
- Department of Gynecology, First Hospital of Shanxi Medical University, Taiyuan, China
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15
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Jiang P, Huang S, Fu Z, Sun Z, Lakowski TM, Hu P. Deep graph embedding for prioritizing synergistic anticancer drug combinations. Comput Struct Biotechnol J 2020; 18:427-438. [PMID: 32153729 PMCID: PMC7052513 DOI: 10.1016/j.csbj.2020.02.006] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Revised: 02/07/2020] [Accepted: 02/09/2020] [Indexed: 12/11/2022] Open
Abstract
Drug combinations are frequently used for the treatment of cancer patients in order to increase efficacy, decrease adverse side effects, or overcome drug resistance. Given the enormous number of drug combinations, it is cost- and time-consuming to screen all possible drug pairs experimentally. Currently, it has not been fully explored to integrate multiple networks to predict synergistic drug combinations using recently developed deep learning technologies. In this study, we proposed a Graph Convolutional Network (GCN) model to predict synergistic drug combinations in particular cancer cell lines. Specifically, the GCN method used a convolutional neural network model to do heterogeneous graph embedding, and thus solved a link prediction task. The graph in this study was a multimodal graph, which was constructed by integrating the drug-drug combination, drug-protein interaction, and protein-protein interaction networks. We found that the GCN model was able to correctly predict cell line-specific synergistic drug combinations from a large heterogonous network. The majority (30) of the 39 cell line-specific models show an area under the receiver operational characteristic curve (AUC) larger than 0.80, resulting in a mean AUC of 0.84. Moreover, we conducted an in-depth literature survey to investigate the top predicted drug combinations in specific cancer cell lines and found that many of them have been found to show synergistic antitumor activity against the same or other cancers in vitro or in vivo. Taken together, the results indicate that our study provides a promising way to better predict and optimize synergistic drug pairs in silico.
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Key Words
- ACC, accuracy
- AUC, area under the curve
- CNN, convolutional neural network
- Cancer
- Cell line
- DDS, drug-drug synergy
- DNN, deep neural network
- DTI, drug-target interaction
- ER, estrogen receptor
- FPR, false positive rate
- GBM, glioblastoma multiforme
- GCN, graph convolutional network
- Graph convolutional network
- HTS, high throughput screening
- Heterogenous network
- PPI, protein–protein interaction
- RF, random forest
- ROC, receiver operating characteristic
- SD, standard deviation
- SVM, support vector machine
- Synergistic drug combination
- TNBC, triple negative breast cancer
- TPR, true positive rate
- XGBoost, extreme gradient boosting
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Affiliation(s)
- Peiran Jiang
- Department of Biochemistry and Medical Genetics, University of Manitoba, Winnipeg, Manitoba R3E 0J9, Canada
- Department of Bioinformatics & Systems Biology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Shujun Huang
- College of Pharmacy, University of Manitoba, Winnipeg, Manitoba R3E 0T5, Canada
| | - Zhenyuan Fu
- Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Zexuan Sun
- Department of Biochemistry and Medical Genetics, University of Manitoba, Winnipeg, Manitoba R3E 0J9, Canada
- School of Mathematics and Statistic, Wuhan University, Wuhan 430072, China
| | - Ted M. Lakowski
- College of Pharmacy, University of Manitoba, Winnipeg, Manitoba R3E 0T5, Canada
| | - Pingzhao Hu
- Department of Biochemistry and Medical Genetics, University of Manitoba, Winnipeg, Manitoba R3E 0J9, Canada
- Research Institute in Oncology and Hematology, CancerCare Manitoba, Winnipeg R3E 0V9, Canada
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16
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Wu J, Li L, Wang Y, Ren X, Lin K, He Y. The HSP90/Akt pathway may mediate artemether-induced apoptosis of Cal27 cells. FEBS Open Bio 2019; 9:1726-1733. [PMID: 31376209 PMCID: PMC6768108 DOI: 10.1002/2211-5463.12711] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 07/09/2019] [Accepted: 08/02/2019] [Indexed: 12/31/2022] Open
Abstract
Tongue squamous cell carcinoma is the most common malignant tumor in oral and maxillofacial regions. Recent research has found that artemether can inhibit growth and induce apoptosis of cancer cells, although the mechanism is not clear. The present study aimed to explore the correlation between the HSP90/Akt pathway and artemether‐induced apoptosis of Cal27 cells. A cell counting kit‐8 and flow cytometry were used to detect the proliferation and apoptosis of Cal27 cells, respectively, mRNA expression was examined by quantitative RT‐PCR, and protein expression was detected by western blotting. Our data revealed that artemether can inhibit growth and induce apoptosis of Cal27 cells. As the artemether concentration was increased, we observed downregulation of the expression of HSP90, p‐Akt and p‐mTOR in Cal27 cells, whereas the expression of Akt was not significantly changed. We also observed a time‐dependent decrease in the expression of HSP90, p‐Akt and p‐mTOR during exposure to 0.1 mg·mL−1 artemether. In conclusion, the HSP90/Akt pathway may be involved in artemether‐induced apoptosis of Cal27 cells.
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Affiliation(s)
- Jianhua Wu
- Department of Periodontology, The Affiliated Stomatological Hospital of Kunming Medical University, Kunming, China
| | - Lei Li
- Department of Head and Neck Surgery, The Third Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yiting Wang
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital of Kunming Medical University, Kunming, China
| | - Xiaobin Ren
- Department of Periodontology, The Affiliated Stomatological Hospital of Kunming Medical University, Kunming, China
| | - Ken Lin
- Department of Otolaryngology, Head and Neck Surgery, Kunming Children's Hospital, Kunming, China
| | - Yongwen He
- Department of Dental Research, The Affiliated Stomatological Hospital of Kunming Medical University, Kunming, China
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17
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Qian S, Zhan X, Lu M, Li N, Long Y, Li X, Desiderio DM, Zhan X. Quantitative Analysis of Ubiquitinated Proteins in Human Pituitary and Pituitary Adenoma Tissues. Front Endocrinol (Lausanne) 2019; 10:328. [PMID: 31191455 PMCID: PMC6540463 DOI: 10.3389/fendo.2019.00328] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 05/07/2019] [Indexed: 12/30/2022] Open
Abstract
Protein ubiquitination is an important post-translational modification that is associated with multiple diseases, including pituitary adenomas (PAs). Protein ubiquitination profiling in human pituitary and PAs remains unknown. Here, we performed the first ubiquitination analysis with an anti-ubiquitin antibody (specific to K-ε-GG)-based label-free quantitative proteomics method and bioinformatics to investigate protein ubiquitination profiling between PA and control tissues. A total of 158 ubiquitinated sites and 142 ubiquitinated peptides in 108 proteins were identified, and five ubiquitination motifs were found. KEGG pathway network analysis of 108 ubiquitinated proteins identified four statistically significant signaling pathways, including PI3K-AKT signaling pathway, hippo signaling pathway, ribosome, and nucleotide excision repair. R software Gene Ontology (GO) analysis of 108 ubiquitinated proteins revealed that protein ubiquitination was involved in multiple biological processes, cellular components, and molecule functions. The randomly selected ubiquitinated 14-3-3 zeta/delta protein was further analyzed with Western blot, and it was found that upregulated 14-3-3 zeta/delta protein in nonfunctional PAs might be derived from the significantly decreased level of its ubiquitination compared to control pituitaries, which indicated a contribution of 14-3-3 zeta/delta protein to pituitary tumorigenesis. These findings provided the first ubiquitinated proteomic profiling and ubiquitination-involved signaling pathway networks in human PAs. This study offers new scientific evidence and basic data to elucidate the biological functions of ubiquitination in PAs, insights into its novel molecular mechanisms of pituitary tumorigenesis, and discovery of novel biomarkers and therapeutic targets for effective treatment of PAs.
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Affiliation(s)
- Shehua Qian
- Key Laboratory of Cancer Proteomics of Chinese Ministry of Health, Xiangya Hospital, Central South University, Changsha, China
- Hunan Engineering Laboratory for Structural Biology and Drug Design, Xiangya Hospital, Central South University, Changsha, China
- State Local Joint Engineering Laboratory for Anticancer Drugs, Xiangya Hospital, Central South University, Changsha, China
| | - Xiaohan Zhan
- Key Laboratory of Cancer Proteomics of Chinese Ministry of Health, Xiangya Hospital, Central South University, Changsha, China
- Hunan Engineering Laboratory for Structural Biology and Drug Design, Xiangya Hospital, Central South University, Changsha, China
- State Local Joint Engineering Laboratory for Anticancer Drugs, Xiangya Hospital, Central South University, Changsha, China
| | - Miaolong Lu
- Key Laboratory of Cancer Proteomics of Chinese Ministry of Health, Xiangya Hospital, Central South University, Changsha, China
- Hunan Engineering Laboratory for Structural Biology and Drug Design, Xiangya Hospital, Central South University, Changsha, China
- State Local Joint Engineering Laboratory for Anticancer Drugs, Xiangya Hospital, Central South University, Changsha, China
| | - Na Li
- Key Laboratory of Cancer Proteomics of Chinese Ministry of Health, Xiangya Hospital, Central South University, Changsha, China
- Hunan Engineering Laboratory for Structural Biology and Drug Design, Xiangya Hospital, Central South University, Changsha, China
- State Local Joint Engineering Laboratory for Anticancer Drugs, Xiangya Hospital, Central South University, Changsha, China
| | - Ying Long
- Key Laboratory of Cancer Proteomics of Chinese Ministry of Health, Xiangya Hospital, Central South University, Changsha, China
- Hunan Engineering Laboratory for Structural Biology and Drug Design, Xiangya Hospital, Central South University, Changsha, China
- State Local Joint Engineering Laboratory for Anticancer Drugs, Xiangya Hospital, Central South University, Changsha, China
| | - Xuejun Li
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
| | - Dominic M. Desiderio
- The Charles B. Stout Neuroscience Mass Spectrometry Laboratory, Department of Neurology, College of Medicine, University of Tennessee Health Science Center, Memphis, TN, United States
| | - Xianquan Zhan
- Key Laboratory of Cancer Proteomics of Chinese Ministry of Health, Xiangya Hospital, Central South University, Changsha, China
- Hunan Engineering Laboratory for Structural Biology and Drug Design, Xiangya Hospital, Central South University, Changsha, China
- State Local Joint Engineering Laboratory for Anticancer Drugs, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
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18
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Qin F, Wang Y, Jiang X, Wang Y, Zhang N, Wen X, Wang L, Jiang Q, He G. Design, synthesis and molecular mechanisms of novel dual inhibitors of heat shock protein 90/phosphoinositide 3-kinase alpha (Hsp90/PI3Kα) against cutaneous melanoma. J Enzyme Inhib Med Chem 2019; 34:909-926. [PMID: 30957641 PMCID: PMC8853710 DOI: 10.1080/14756366.2019.1596903] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Overexpression of heat shock protein 90 (Hsp90) is common in various types of cancer. In cutaneous melanoma, a cancer with one of the high levels of Hsp90 overexpression, such expression was correlated with a panel of protein kinases, thus offering an opportunity to identify Hsp90-based multi-kinase inhibitors for novel cancer therapies. Towards this goal, we utilized a 2,4-dihydroxy-5-isopropylbenzate-based Hsp90 inhibitor scaffold and thieno[2,3-d]pyrimidine-based kinase inhibitor scaffold to develop a Hsp90-inhibiting compound library. Our inhibitory compound named 8m inhibited Hsp90 and PI3Kα with an IC50 value of 38.6 nM and 48.4 nM, respectively; it displayed improved cellular activity which could effectively induce cell cycle arrest and apoptosis in melanoma cells and lead to the inhibition of cell proliferation, colony formation, migration and invasion. Our results demonstrated 8m to be a promising lead compound for further therapeutic potential assessment of Hsp90/PI3Kα dual inhibitors in melanoma targeted therapy.
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Affiliation(s)
- Feifei Qin
- a Department of Dermatology, State Key Laboratory of Biotherapy , West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy , Chengdu , China.,b Department of Cardiology , West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy , Chengdu , China
| | - Yali Wang
- a Department of Dermatology, State Key Laboratory of Biotherapy , West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy , Chengdu , China.,b Department of Cardiology , West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy , Chengdu , China
| | - Xian Jiang
- a Department of Dermatology, State Key Laboratory of Biotherapy , West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy , Chengdu , China.,b Department of Cardiology , West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy , Chengdu , China
| | - Yujia Wang
- a Department of Dermatology, State Key Laboratory of Biotherapy , West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy , Chengdu , China.,b Department of Cardiology , West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy , Chengdu , China
| | - Nan Zhang
- a Department of Dermatology, State Key Laboratory of Biotherapy , West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy , Chengdu , China.,b Department of Cardiology , West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy , Chengdu , China
| | - Xiang Wen
- a Department of Dermatology, State Key Laboratory of Biotherapy , West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy , Chengdu , China.,b Department of Cardiology , West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy , Chengdu , China
| | - Lian Wang
- a Department of Dermatology, State Key Laboratory of Biotherapy , West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy , Chengdu , China.,b Department of Cardiology , West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy , Chengdu , China
| | - Qinglin Jiang
- c School of Pharmacy and Sichuan Province College Key Laboratory of Structure-Specific Small Molecule Drugs, Chengdu Medical College , Chengdu , China
| | - Gu He
- a Department of Dermatology, State Key Laboratory of Biotherapy , West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy , Chengdu , China.,b Department of Cardiology , West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy , Chengdu , China
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19
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Gurmikov BN, Kovalenko YA, Vishnevsky VA, Chzhao AV. Molecular genetic aspects of intrahepatic cholangiocarcinoma: literature review. ADVANCES IN MOLECULAR ONCOLOGY 2019. [DOI: 10.17650/2313-805x-2019-6-1-37-43] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- B. N. Gurmikov
- A.V. Vishnevsky National Medical Research Center of Surgery, Ministry of Health of Russia
| | - Yu. A. Kovalenko
- A.V. Vishnevsky National Medical Research Center of Surgery, Ministry of Health of Russia
| | - V. A. Vishnevsky
- A.V. Vishnevsky National Medical Research Center of Surgery, Ministry of Health of Russia
| | - A. V. Chzhao
- A.V. Vishnevsky National Medical Research Center of Surgery, Ministry of Health of Russia
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20
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Hsp90 Inhibitor SNX-2112 Enhances TRAIL-Induced Apoptosis of Human Cervical Cancer Cells via the ROS-Mediated JNK-p53-Autophagy-DR5 Pathway. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:9675450. [PMID: 31019655 PMCID: PMC6452544 DOI: 10.1155/2019/9675450] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 11/08/2018] [Accepted: 11/19/2018] [Indexed: 12/28/2022]
Abstract
Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) is a potent cancer cell apoptosis-inducing factor that can induce apoptosis in a variety of cancer cells. However, resistance to TRAIL in cancer cells is a huge obstacle in creating effective TRAIL-targeted clinical therapies. Thus, agents that can either enhance the effect of TRAIL or overcome its resistance are needed. In this study, we combined TRAIL with SNX-2112, an Hsp90 inhibitor we previously developed, to explore the effect and mechanism that SNX-2112 enhanced TRAIL-induced apoptosis in cervical cancer cells. Our results showed that SNX-2112 markedly enhanced TRAIL-induced cytotoxicity in HeLa cells, and this combination was found to be synergistic. Additionally, we found that SNX-2112 sensitized TRAIL-mediated apoptosis caspase-dependently in TRAIL-resistant HeLa cells. Mechanismly, SNX-2112 downregulated antiapoptosis proteins, including Bcl-2, Bcl-XL, and FLIP, promoted the accumulation of reactive oxygen species (ROS), and increased the expression levels of p-JNK and p53. ROS scavenger NAC rescued SNX-2112/TRAIL-induced apoptosis and suppressed SNX-2112-induced p-JNK and p53. Moreover, SNX-2112 induced the upregulation of death-receptor DR5 in HeLa cells. The silencing of DR5 by siRNA significantly decreased cell apoptosis by the combined effect of SNX-2112 and TRAIL. In addition, SNX-2112 inhibited the Akt/mTOR signaling pathway and induced autophagy in HeLa cells. The blockage of autophagy by bafilomycin A1 or Atg7 siRNA abolished SNX-2112-induced upregulation of DR5. Meanwhile, ROS scavenger NAC, JNK inhibitor SP600125, and p53 inhibitor PFTα were used to verify that autophagy-mediated upregulation of DR5 was regulated by the SNX-2112-stimulated activation of the ROS-JNK-p53 signaling pathway. Thus, the combination of SNX-2112 and TRAIL may provide a novel strategy for the treatment of human cervical cancer by overcoming cellular mechanisms of apoptosis resistance.
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Wu CE, Chen MH, Yeh CN. mTOR Inhibitors in Advanced Biliary Tract Cancers. Int J Mol Sci 2019; 20:E500. [PMID: 30682771 PMCID: PMC6386826 DOI: 10.3390/ijms20030500] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Revised: 01/19/2019] [Accepted: 01/22/2019] [Indexed: 12/19/2022] Open
Abstract
Patients with advanced biliary tract cancers (BTCs), including cholangiocarcinoma (CCA), have poor prognosis so novel treatment is warranted for advanced BTC. In current review, we discuss the limitations of current treatment in BTC, the importance of mTOR signalling in BTC, and the possible role of mTOR inhibitors as a future treatment in BTC. Chemotherapy with gemcitabine-based chemotherapy is still the standard of care and no targeted therapy has been established in advanced BTC. PI3K/AKT/mTOR signaling pathway linking to several other pathways and networks regulates cancer proliferation and progression. Emerging evidences reveal mTOR activation is associated with tumorigenesis and drug-resistance in BTC. Rapalogs, such as sirolimus and everolimus, partially inhibit mTOR complex 1 (mTORC1) and exhibit anti-cancer activity in vitro and in vivo in BTC. Rapalogs in clinical trials demonstrate some activity in patients with advanced BTC. New-generation mTOR inhibitors against ATP-binding pocket inhibit both TORC1 and TORC2 and demonstrate more potent anti-tumor effects in vitro and in vivo, however, prospective clinical trials are warranted to prove its efficacy in patients with advanced BTC.
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Affiliation(s)
- Chao-En Wu
- Division of Hematology-Oncology, Department of Internal Medicine, Chang Gung Memorial Hospital, Linkou branch, Chang Gung University, Taoyuan 333, Taiwan.
| | - Ming-Huang Chen
- School of Medicine, National Yang-Ming University, Taipei 112, Taiwan.
- Department of Oncology, Taipei Veterans General Hospital, Taipei 112, Taiwan.
| | - Chun-Nan Yeh
- Department of General Surgery and Liver Research Center, Chang Gung Memorial Hospital, Linkou branch, Chang Gung University, Taoyuan 333, Taiwan.
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22
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Hu MH, Huang TT, Chao TI, Chen LJ, Chen YL, Tsai MH, Liu CY, Kao JH, Chen KF. Serine/threonine protein phosphatase 5 is a potential therapeutic target in cholangiocarcinoma. Liver Int 2018; 38:2248-2259. [PMID: 29797403 DOI: 10.1111/liv.13887] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 05/20/2018] [Indexed: 02/13/2023]
Abstract
BACKGROUND & AIMS Few molecules are currently verified to be actionable drug targets in cholangiocarcinoma (CCA). Serine/threonine protein phosphatase 5 (PP5) dysregulation is related to several malignancies. However, the role of PP5 in CCA is poorly defined. METHODS Colony and tumorsphere formation assays were conducted to establish the role of PP5 in CCA tumorigenesis. Cantharidin (CTD) and norcantharidin (NCTD), both potent PP5 inhibitors, were used in in vitro and in vivo experiments to validate the potential therapeutic role of PP5. RESULTS Increased cell growth, colony formation and tumorsphere formation were observed in PP5-overexpressing CCA cells, whereas PP5 knockdown by shRNA decreased cell growth and colony formation. Tumours from HuCCT1 xenograft-bearing mice treated with PP5-shRNA showed decreased growth and increased AMP-activated protein kinase (AMPK) phosphorylation. Furthermore, CTD treatment decreased cell viability, reduced PP5 activity and enhanced AMPK phosphorylation in CCA cell lines. Overexpressing PP5 or enhancing PP5 activity suppressed AMPK phosphorylation and decreased CTD-induced cell death. Suppressing p-AMPK with siRNA or inhibitors also decreased CTD-induced cell death, suggesting a pivotal role for PP5-AMPK cascades in CCA. Immunoprecipitation revealed that PP5 interacted with AMPK. Importantly, treatment of HuCCT1 xenograft-bearing mice with NCTD, a CTD analogue with a lower systemic toxicity in vivo, suppressed PP5 activity, increased p-AMPK and reduced tumour volume. CONCLUSIONS Protein phosphatase 5 negatively regulates AMPK phosphorylation and contributes to CCA aggressiveness; thus, PP5 may be a potential therapeutic target in CCA.
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Affiliation(s)
- Ming-Hung Hu
- Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan.,Division of Hematology and Oncology, Department of Medicine, Cardinal Tien Hospital, New Taipei City, Taiwan.,School of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan
| | - Tzu-Ting Huang
- Division of Medical Oncology, Department of Oncology, Taipei Veterans General Hospital, Taipei City, Taiwan
| | - Tzu-I Chao
- Transplant Medicine & Surgery Research Centre, Changhua Christian Hospital, Changhua, Taiwan
| | - Li-Ju Chen
- Department of Medical Research, National Taiwan University Hospital, Taipei, Taiwan
| | - Yen-Lin Chen
- Department of Pathology, Cardinal Tien Hospital, New Taipei City, Taiwan
| | - Ming-Hsien Tsai
- Department of Medical Research, National Taiwan University Hospital, Taipei, Taiwan
| | - Chun-Yu Liu
- Division of Medical Oncology, Department of Oncology, Taipei Veterans General Hospital, Taipei City, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan.,Division of Transfusion Medicine, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Jia-Horng Kao
- Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan.,Division of Gastroenterology and Hepatology, Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Kuen-Feng Chen
- Department of Medical Research, National Taiwan University Hospital, Taipei, Taiwan.,National Center of Excellence for Clinical Trial and Research, National Taiwan University Hospital, Taipei, Taiwan
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23
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Targeting the PI3K/AKT/mTOR pathway in biliary tract cancers: A review of current evidences and future perspectives. Cancer Treat Rev 2018; 72:45-55. [PMID: 30476750 DOI: 10.1016/j.ctrv.2018.11.001] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 11/07/2018] [Accepted: 11/08/2018] [Indexed: 02/07/2023]
Abstract
Biliary tract cancers (BTCs) are a group of invasive neoplasms, with increasing incidence and dismal prognosis. In advanced disease, the standard of care is represented by first-line chemotherapy with cisplatin and gemcitabine. In subsequent lines, no clear recommendations are currently available, highlighting the need for novel therapeutic approaches. The PI3K/AKT/mTOR pathway is a core regulator of cell metabolism, growth and survival, and is involved in BTCs carcinogenesis and progression. Mutations, gene copy number alterations and aberrant protein phosphorylation of PI3K, AKT, mTOR and PTEN have been thoroughly described in BTCs and correlate with poor survival outcomes. Several pre-clinical evidences state the efficacy of PI3K/AKT/mTOR pathway inhibitors in BTCs, both in vitro and in vivo. In the clinical setting, initial studies with rapamycin analogs have shown interesting activity with an acceptable toxicity profile. Novel strategies evaluating AKT and PI3K inhibitors have risen serious safety concerns, pointing out the need for improved patient selection and increased target specificity for the clinical development of these agents, both alone and in combination with chemotherapy. This review extensively describes the role of the PI3K/AKT/mTOR pathway in BTCs and examines the rationale of its targeting in these tumors, with particular focus on clinical activity, toxicities and perspectives on further development of PI3K/AKT/mTOR pathway inhibitors.
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24
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Song X, Liu X, Wang H, Wang J, Qiao Y, Cigliano A, Utpatel K, Ribback S, Pilo MG, Serra M, Gordan JD, Che L, Zhang S, Cossu A, Porcu A, Pascale RM, Dombrowski F, Hu H, Calvisi DF, Evert M, Chen X. Combined CDK4/6 and Pan-mTOR Inhibition Is Synergistic Against Intrahepatic Cholangiocarcinoma. Clin Cancer Res 2018; 25:403-413. [PMID: 30084835 DOI: 10.1158/1078-0432.ccr-18-0284] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2018] [Revised: 04/02/2018] [Accepted: 06/25/2018] [Indexed: 02/06/2023]
Abstract
PURPOSE Intrahepatic cholangiocarcinoma (ICC) is an aggressive cancer type, lacking effective therapies and associated with a dismal prognosis. Palbociclib is a selective CDK4/6 inhibitor, which has been shown to suppress cell proliferation in many experimental cancer models. Recently, we demonstrated that pan-mTOR inhibitors, such as MLN0128, effectively induce apoptosis, although have limited efficacy in restraining proliferation of ICC cells. Here, we tested the hypothesis that palbociclib, due to its antproliferative properties in many cancer types, might synergize with MLN0128 to impair ICC growth. EXPERIMENTAL DESIGN Human ICC cell lines and the AKT/YapS127A ICC mouse model were used to test the therapeutic efficacy of palbociclib and MLN0128, either alone or in combination. RESULTS Administration of palbociclib suppressed in vitro ICC cell growth by inhibiting cell-cycle progression. Concomitant administration of palbociclib and MLN0128 led to a pronounced, synergistic growth constraint of ICC cell lines. Furthermore, while treatment with palbociclib or MLN0128 alone resulted in tumor growth reduction in AKT/YapS127A mice, a remarkable tumor regression was achieved when the two drugs were administered simultaneously. Mechanistically, palbociclib was found to potentiate MLN0128 mTOR inhibition activity, whereas MLN0128 prevented the upregulation of cyclin D1 induced by palbociclib treatment. CONCLUSIONS Our study indicates the synergistic activity of palbociclib and MLN0128 in inhibiting ICC cell proliferation. Thus, combination of CDK4/6 and mTOR inhibitors might represent a novel, promising, and effective therapeutic approach against human ICC.See related commentary by Malumbres, p. 6.
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Affiliation(s)
- Xinhua Song
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China.,Department of Bioengineering and Therapeutic Sciences and Liver Center, University of California, San Francisco, California
| | - Xianqiong Liu
- Department of Bioengineering and Therapeutic Sciences and Liver Center, University of California, San Francisco, California.,School of Pharmacy, Hubei University of Chinese Medicine Wuhan, Hubei, China
| | - Haichuan Wang
- Department of Bioengineering and Therapeutic Sciences and Liver Center, University of California, San Francisco, California.,Liver Transplantation Division, Department of Liver Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Jingxiao Wang
- Department of Bioengineering and Therapeutic Sciences and Liver Center, University of California, San Francisco, California.,Beijing University of Chinese Medicine, Beijing, China
| | - Yu Qiao
- Department of Bioengineering and Therapeutic Sciences and Liver Center, University of California, San Francisco, California.,Department of Oncology, Beijing Hospital, Beijing, China
| | - Antonio Cigliano
- Institute of Pathology, University of Greifswald, Greifswald, Germany
| | - Kirsten Utpatel
- Institute of Pathology, University of Regensburg, Regensburg, Germany
| | - Silvia Ribback
- Institute of Pathology, University of Greifswald, Greifswald, Germany
| | - Maria G Pilo
- Institute of Pathology, University of Greifswald, Greifswald, Germany
| | - Marina Serra
- Institute of Pathology, University of Greifswald, Greifswald, Germany
| | - John D Gordan
- Department of Medicine, University of California, San Francisco, California
| | - Li Che
- Department of Bioengineering and Therapeutic Sciences and Liver Center, University of California, San Francisco, California
| | - Shanshan Zhang
- Department of Bioengineering and Therapeutic Sciences and Liver Center, University of California, San Francisco, California
| | - Antonio Cossu
- Unit of Pathology, Azienda Ospedaliero Universitaria Sassari, Sassari, Italy
| | - Alberto Porcu
- Department of Clinical and Experimental Medicine, University of Sassari, Sassari, Italy
| | - Rosa M Pascale
- Department of Clinical and Experimental Medicine, University of Sassari, Sassari, Italy
| | - Frank Dombrowski
- Institute of Pathology, University of Greifswald, Greifswald, Germany
| | - Hongbo Hu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China.
| | - Diego F Calvisi
- Institute of Pathology, University of Greifswald, Greifswald, Germany
| | - Matthias Evert
- Institute of Pathology, University of Regensburg, Regensburg, Germany.
| | - Xin Chen
- Department of Bioengineering and Therapeutic Sciences and Liver Center, University of California, San Francisco, California.
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25
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Chang PMH, Cheng CT, Wu RC, Chung YH, Chiang KC, Yeh TS, Liu CY, Chen MH, Chen MH, Yeh CN. Nab-paclitaxel is effective against intrahepatic cholangiocarcinoma via disruption of desmoplastic stroma. Oncol Lett 2018; 16:566-572. [PMID: 29963132 DOI: 10.3892/ol.2018.8690] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Accepted: 02/02/2018] [Indexed: 12/18/2022] Open
Abstract
Intrahepatic cholangiocarcinoma (IH-CCA) is the second predominant hepatic malignancy worldwide. However, effective treatment strategies for IH-CCA have not yet been developed. Nab-paclitaxel may be an effective drug against IH-CCA, a type of desmoid-like tumor, and its antitumor effects may be attributable to its ability to disrupt the cancer-associated fibroblasts. In the present study, MTT and Annexin-V apoptosis detection kits were used to evaluate the efficacy of paclitaxel and nab-paclitaxel against human cholangiocarcinoma KKU-100 and KKU-213 cell lines. A rat model of thioacetamide-induced spontaneous desmoplastic IH-CCA was used to compare the treatment response of four different drug regimens: Control, paclitaxel, nab-paclitaxel and gemcitabine/oxaliplatin. Positron emission tomography and immunofluorescence analysis were used to measure the tumor volume and to study the resected tumor, respectively. In vitro, paclitaxel and nab-paclitaxel induced anti-proliferative effects in KKU-100 and KKU-M213 cells. With regards to the treatment regimes, only nab-paclitaxel and gemcitabine/oxaliplatin induced antitumor effects in the rat model of thioacetamide-induced IH-CCA. The immunofluorescence study indicated that nab-paclitaxel was more efficient in disrupting cancer-associated fibroblasts than paclitaxel. In conclusion, nab-paclitaxel is effective against IH-CCA owing to its ability to markedly disrupt the desmoplastic stroma.
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Affiliation(s)
- Peter Mu-Hsin Chang
- Department of Oncology, Taipei Veterans General Hospital, National Yang-Ming University, Taipei 112, Taiwan, R.O.C.,School of Medicine, National Yang-Ming University, Taipei 112, Taiwan, R.O.C
| | - Chi-Tung Cheng
- Department of Surgery and Liver Research Center, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan, R.O.C
| | - Ren-Chin Wu
- Department of Pathology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan, R.O.C
| | - Yi-Hsiu Chung
- Center for Advanced Molecular Imaging and Translation, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan, R.O.C
| | - Kun-Chun Chiang
- Department of Surgery and Liver Research Center, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan, R.O.C
| | - Ta-Sen Yeh
- Department of Surgery and Liver Research Center, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan, R.O.C
| | - Chun-Yu Liu
- Department of Oncology, Taipei Veterans General Hospital, National Yang-Ming University, Taipei 112, Taiwan, R.O.C.,School of Medicine, National Yang-Ming University, Taipei 112, Taiwan, R.O.C
| | - Ming-Han Chen
- School of Medicine, National Yang-Ming University, Taipei 112, Taiwan, R.O.C
| | - Ming-Huang Chen
- Department of Oncology, Taipei Veterans General Hospital, National Yang-Ming University, Taipei 112, Taiwan, R.O.C.,School of Medicine, National Yang-Ming University, Taipei 112, Taiwan, R.O.C
| | - Chun-Nan Yeh
- Department of Surgery and Liver Research Center, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan, R.O.C
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26
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Li LJ, Chai Y, Guo XJ, Chu SL, Zhang LS. Effects of endoplasmic reticulum stress on autophagy and apoptosis of human leukemia cells via inhibition of the PI3K/AKT/mTOR signaling pathway. Mol Med Rep 2018; 17:7886-7892. [PMID: 29620275 DOI: 10.3892/mmr.2018.8840] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Accepted: 12/18/2017] [Indexed: 11/05/2022] Open
Abstract
The present study aimed to explore the regulatory effects of endoplasmic reticulum stress (ERS) on the phosphoinositide 3‑kinase (PI3K)/AKT serine/threonine kinase 1 (AKT)/mammalian target of rapamycin (mTOR) signaling pathway, and its subsequent effects on autophagy and apoptosis of human leukemia cells. Human leukemia cells were cultured and treated with various concentrations of tunicamycin for 0, 24, 48, 72 and 90 h. Subsequently, human leukemia cells were assigned into the ER activation group, which was treated with 100 ng/ml tunicamycin, the ER activation + TO901317 (PI3K inhibitor) group, and the control group. An MTT assay was conducted to detect cell proliferation. In addition, a monodansylcadaverine (MDC) assay was used to detect the formation of autophagosomes and Annexin V‑fluorescein isothiocyanate/propidium iodide double staining was used to examine cell apoptosis. Western blotting was performed to detect the expression levels of 78‑kDa glucose‑regulated protein (GRP78), phosphorylated (p)‑protein kinase R‑like endoplasmic reticulum kinase (PERK), p‑α subunit of eukaryotic initiation factor 2 (eIF2α), microtubule‑associated protein 1A/1B‑light chain 3 (LC3), caspase‑3, CCAAT‑enhancer‑binding protein homologous protein (CHOP), PI3K, AKT and mTOR. Treatment with 100 ng/ml tunicamycin for 72 h was considered the optimal condition for further experiments. Compared with in cells prior to treatment, human leukemia cells treated with tunicamycin exhibited increased expression of p‑PERK, p‑eIF2α and GRP78 after 72 h (P<0.05). In addition, the expression levels of mTOR, AKT and PI3K were decreased in the ER activation group compared with in the control and ER activation + TO901317 groups (P<0.05). Compared with in the control group, cell proliferation was inhibited and MDC fluorescence intensity was increased in the ER activation group (P<0.05). Furthermore, compared with in the control and ER activation + TO901317 groups, western blotting indicated that the expression levels of LC3‑II were increased in the ER activation group (P<0.05). The apoptotic rate was also higher in the ER activation group compared with in the control group (P<0.05), and caspase‑3 and CHOP expression was elevated in the ER activation group (P<0.05). These findings indicated that ERS may induce autophagy and apoptosis of human leukemia cells via inhibiting the PI3K/AKT/mTOR signaling pathway.
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Affiliation(s)
- Li-Juan Li
- Department of Hematology, Lanzhou University Second Hospital, Lanzhou, Gansu 730000, P.R. China
| | - Ye Chai
- Department of Hematology, Lanzhou University Second Hospital, Lanzhou, Gansu 730000, P.R. China
| | - Xiao-Jia Guo
- Department of Hematology, Lanzhou University Second Hospital, Lanzhou, Gansu 730000, P.R. China
| | - Song-Lin Chu
- Department of Hematology, Lanzhou University Second Hospital, Lanzhou, Gansu 730000, P.R. China
| | - Lian-Sheng Zhang
- Department of Hematology, Lanzhou University Second Hospital, Lanzhou, Gansu 730000, P.R. China
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27
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Sun L, Yang S, Chi G, Jin X. Hsp90 inhibitor NMS-E973 exerts the anticancer effect against glioblastoma via induction of PUMA-mediated apoptosis. Onco Targets Ther 2018; 11:1583-1593. [PMID: 29593424 PMCID: PMC5865573 DOI: 10.2147/ott.s160813] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Glioblastoma is one of the most aggressive and common malignancies of the central nervous system in humans. Owing to the correlation of high Hsp90 expression with prognosis and clinical pathology features of diverse types of cancer, targeting Hsp90 with small-molecule inhibitors has become a promising anticancer strategy. PURPOSE In this study, we aimed to explore the possibility of anticancer effect of NMS-E973 in giloblastoma and elucidate the mechanism. METHODS Cell based MTT assay and colony formation assay were used to detect cell viability. Apoptosis was analyzed by nuclear staining with Hoechst 33258 and Annexin V/propidium iodide staining followed by flow cytometry. Western-blot and RT-PCR were used to detect gene expression. Xenograft assay was used to explore the anticancer effect of NMS-E973 in vivo. RESULTS We found that NMS-E973 induces apoptosis and inhibits cell growth in glioblastoma cells in cell culture and xenograft models. As a proapoptotic Bcl-2 member, PUMA was induced by NMS-E973 in a p53-dependent manner in glioblastoma in cell culture, thereby inducing apoptosis in glioblastoma cells. Furthermore, PUMA was induced by NMS-E973 treatment in xenograft tumors, and deficiency in PUMA significantly suppressed the antitumor effects of NMS-E973. CONCLUSION Our study suggests that PUMA-mediated apoptosis is important for the therapeutic responses of NMS-E973. Induction of PUMA might be a potential biomarker for predicting NMS-E973 responses.
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Affiliation(s)
- Libo Sun
- First Department of Neurosurgery, China-Japan Union Hospital of Jilin University, Changhun, Jilin, People’s Republic of China
| | - Shoujun Yang
- Department of Rehabilitation, China-Japan Union Hospital of Jilin University, Changhun, Jilin, People’s Republic of China
| | - Guonan Chi
- First Department of Neurosurgery, China-Japan Union Hospital of Jilin University, Changhun, Jilin, People’s Republic of China
| | - Xingyi Jin
- First Department of Neurosurgery, China-Japan Union Hospital of Jilin University, Changhun, Jilin, People’s Republic of China
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28
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Han IW, Jang JY, Kwon W, Park T, Kim Y, Lee KB, Kim SW. Ceruloplasmin as a prognostic marker in patients with bile duct cancer. Oncotarget 2018; 8:29028-29037. [PMID: 28423673 PMCID: PMC5438709 DOI: 10.18632/oncotarget.15995] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 02/06/2017] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND AND AIMS Bile duct cancer is one of the lethal cancers, presenting difficulties in early diagnosis and limited treatment modalities. Despite current advances in biomarker research, most studies have been performed in Western populations. Therefore, the purpose of this study was to determine a prognostic marker for bile duct cancer, especially in Korean patients, whose incidence of bile duct cancer is high. RESULTS Comparing cancer and normal bile duct tissue, we identified 29091 differentially expressed genes. CP, SCEL, and MUC16 had positive coefficients with a log2 ratio >1 for advanced T, N stage and perineural invasion cancer tissue. Strong immunohistochemical expression of ceruloplasmin was dominant in tumors with advanced T stage (p>0.999) and perineural invasion (p=0.316). PATIENTS AND METHODS We performed tissue microarray experiment with 79 bile duct cancer tissue samples and 21 normal bile duct tissue samples. Candidate genes that has positive correlation with T, N stage and perineural invasion were drawn with multivariate analysis. Tissue expression of the genes was evaluated with an immunohistochemical study. CONCLUSIONS Ceruloplasmin is supposed to be related with advanced T stage and perineural invasion, having a possibility as a candidate prognostic marker for bile duct cancer.
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Affiliation(s)
- In Woong Han
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Gangnam-Gu, Seoul 06351, Korea.,Department of Surgery and Cancer Research Institute, Seoul National University College of Medicine, Chongno-Gu, Seoul 110-744, Korea
| | - Jin-Young Jang
- Department of Surgery and Cancer Research Institute, Seoul National University College of Medicine, Chongno-Gu, Seoul 110-744, Korea
| | - Wooil Kwon
- Department of Surgery and Cancer Research Institute, Seoul National University College of Medicine, Chongno-Gu, Seoul 110-744, Korea
| | - Taesung Park
- Department of Statistics, Seoul National University College of Natural Sciences, Gwanak-Gu, Seoul 08826, Korea
| | - Yongkang Kim
- Department of Statistics, Seoul National University College of Natural Sciences, Gwanak-Gu, Seoul 08826, Korea
| | - Kyoung Bun Lee
- Department of Pathology, Seoul National University College of Medicine, Chongno-Gu, Seoul 110-744, Korea
| | - Sun-Whe Kim
- Department of Surgery and Cancer Research Institute, Seoul National University College of Medicine, Chongno-Gu, Seoul 110-744, Korea
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Djuzenova CS, Fiedler V, Katzer A, Michel K, Deckert S, Zimmermann H, Sukhorukov VL, Flentje M. Dual PI3K- and mTOR-inhibitor PI-103 can either enhance or reduce the radiosensitizing effect of the Hsp90 inhibitor NVP-AUY922 in tumor cells: The role of drug-irradiation schedule. Oncotarget 2018; 7:38191-38209. [PMID: 27224913 PMCID: PMC5122382 DOI: 10.18632/oncotarget.9501] [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: 09/24/2015] [Accepted: 05/01/2016] [Indexed: 12/12/2022] Open
Abstract
Inhibition of Hsp90 can increase the radiosensitivity of tumor cells. However, inhibition of Hsp90 alone induces the anti-apoptotic Hsp70 and thereby decreases radiosensitivity. Therefore, preventing Hsp70 induction can be a promising strategy for radiosensitization. PI-103, an inhibitor of PI3K and mTOR, has previously been shown to suppress the up-regulation of Hsp70. Here, we explore the impact of combining PI-103 with the Hsp90 inhibitor NVP-AUY922 in irradiated glioblastoma and colon carcinoma cells. We analyzed the cellular response to drug-irradiation treatments by colony-forming assay, expression of several marker proteins, cell cycle progression and induction/repair of DNA damage. Although PI-103, given 24 h prior to irradiation, slightly suppressed the NVP-AUY922-mediated up-regulation of Hsp70, it did not cause radiosensitization and even diminished the radiosensitizing effect of NVP-AUY922. This result can be explained by the activation of PI3K and ERK pathways along with G1-arrest at the time of irradiation. In sharp contrast, PI-103 not only exerted a radiosensitizing effect but also strongly enhanced the radiosensitization by NVP-AUY922 when both inhibitors were added 3 h before irradiation and kept in culture for 24 h. Possible reasons for the observed radiosensitization under this drug-irradiation schedule may be a down-regulation of PI3K and ERK pathways during or directly after irradiation, increased residual DNA damage and strong G2/M arrest 24 h thereafter. We conclude that duration of drug treatment before irradiation plays a key role in the concomitant targeting of PI3K/mTOR and Hsp90 in tumor cells.
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Affiliation(s)
- Cholpon S Djuzenova
- Department of Radiation Oncology, University Hospital of Würzburg, Würzburg, Germany
| | - Vanessa Fiedler
- Department of Radiation Oncology, University Hospital of Würzburg, Würzburg, Germany
| | - Astrid Katzer
- Department of Radiation Oncology, University Hospital of Würzburg, Würzburg, Germany
| | - Konstanze Michel
- Department of Radiation Oncology, University Hospital of Würzburg, Würzburg, Germany
| | - Stefanie Deckert
- Department of Radiation Oncology, University Hospital of Würzburg, Würzburg, Germany
| | - Heiko Zimmermann
- Fraunhofer-Institut für Biomedizinische Technik, St. Ingbert and Lehrstuhl für Molekulare und Zelluläre Biotechnologie/Nanotechnologie, Universität des Saarlandes, Saarbrücken, Germany
| | - Vladimir L Sukhorukov
- Department of Biotechnology and Biophysics, University of Würzburg, Würzburg, Germany
| | - Michael Flentje
- Department of Radiation Oncology, University Hospital of Würzburg, Würzburg, Germany.,Comprehensive Cancer Center Mainfranken, University of Würzburg, Würzburg, Germany
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Synergistic antitumor activity of the combination of salubrinal and rapamycin against human cholangiocarcinoma cells. Oncotarget 2018; 7:85492-85501. [PMID: 27863431 PMCID: PMC5356752 DOI: 10.18632/oncotarget.13408] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2016] [Accepted: 10/27/2016] [Indexed: 12/20/2022] Open
Abstract
Less is known about the roles of eukaryotic initiation factor alpha (eIF2α) in cholangiocarcinoma (CCA). Here, we report that eIF2α inhibitor salubrinal inhibits the proliferation of human CCA cells. Clinical application of mammalian target of rapamycin (mTOR) inhibitors only has moderate antitumor efficacy. Therefore, combination approaches may be required for effective clinical use of mTOR inhibitors. Here, we investigated the efficacy of the combination of salubrinal and rapamycin in the treatment of CCA. Our data demonstrate a synergistic antitumor effect of the combination of salubrinal and rapamycin against CCA cells. Rapamycin significantly inhibits the proliferation of CCA cells. However, rapamycin initiates a negative feedback activation of Akt. Inhibition of Akt by salubrinal potentiates the efficacy of rapamycin both in vitro and in vivo. Additionally, rapamycin treatment results in the up-regulation of Bcl-xL in a xenograft mouse model. It is notable that salubrinal inhibits rapamycin-induced Bcl-xL up-regulation in vivo. Taken together, our data suggest that salubrinal and rapamycin combination might be a new and effective strategy for the treatment of CCA.
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31
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Sun Y, Huang YH, Huang FY, Mei WL, Liu Q, Wang CC, Lin YY, Huang C, Li YN, Dai HF, Tan GH. 3'-epi-12β-hydroxyfroside, a new cardenolide, induces cytoprotective autophagy via blocking the Hsp90/Akt/mTOR axis in lung cancer cells. Am J Cancer Res 2018; 8:2044-2060. [PMID: 29556372 PMCID: PMC5858516 DOI: 10.7150/thno.23304] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Accepted: 01/19/2018] [Indexed: 02/05/2023] Open
Abstract
Rationale: Cardenolides have potential as anticancer drugs. 3′-epi-12β-hydroxyfroside (HyFS) is a new cardenolide structure isolated by our research group, but its molecular mechanisms remain poorly understood. This study investigates the relationship between its antitumor activities and autophagy in lung cancer cells. Methods: Cell growth and proliferation were detected by MTT, lactate dehydrogenase (LDH) release, 5-ethynyl-20-deoxyuridine (EDU) and colony formation assays. Cell apoptosis was detected by flow cytometry. Autophagic and signal proteins were detected by Western blotting. Markers of autophagy and autophagy flux were also detected by immunofluorescence, transmission electron microscopy and acridine orange staining. Real time RT-PCR was used to analyze the gene expression of Hsp90. Hsp90 ubiquitination was detected by coimmunoprecipitation. The antitumore activities of HyFS were observed in nude mice. Results: HyFS treatment inhibited cell proliferation and induced autophagy in A549 and H460 lung cancer cells, but stronger inhibition of cell proliferation and induction of cell apoptosis were shown when HyFS-mediated autophagy was blocked. The Hsp90/Akt/mTOR axis was found to be involved in the activation of HyFS-mediated autophagy. Evidence of direct interaction between Hsp90 and Akt was observed. HyFS treatment resulted in decreased levels of heat shock protein 90 (Hsp90) and phosphorylated Akt, overexpression of Hsp90 increased activation of autophagy, and inhibition of Hsp90 expression decreased autophagy. In addition, ubiquitin-mediated degradation of Hsp90 and subsequent dephosphorylation of its client protein Akt were also found in HyFS-treated lung cancer cells. Moreover, combination treatment with HyFS and chloroquine showed remarkably increased tumor inhibition in both A549- and H460-bearing mice. Conclusion: Our results demonstrate that HyFS induced cytoprotective autophagy through ubiquitin-mediated degradation of Hsp90, which further blocked the Akt/mTOR pathway in lung cancer cells. Thus, a combination of a HyFS-like cardenolide and an autophagic inhibitor is a potential alternative approach for the treatment of lung cancer.
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Kinzel L, Ernst A, Orth M, Albrecht V, Hennel R, Brix N, Frey B, Gaipl US, Zuchtriegel G, Reichel CA, Blutke A, Schilling D, Multhoff G, Li M, Niyazi M, Friedl AA, Winssinger N, Belka C, Lauber K. A novel HSP90 inhibitor with reduced hepatotoxicity synergizes with radiotherapy to induce apoptosis, abrogate clonogenic survival, and improve tumor control in models of colorectal cancer. Oncotarget 2017; 7:43199-43219. [PMID: 27259245 PMCID: PMC5190018 DOI: 10.18632/oncotarget.9774] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2015] [Accepted: 05/24/2016] [Indexed: 12/20/2022] Open
Abstract
The chaperone heat shock protein 90 (HSP90) crucially supports the maturation, folding, and stability of a variety of client proteins which are of pivotal importance for the survival and proliferation of cancer cells. Consequently, targeting of HSP90 has emerged as an attractive strategy of anti-cancer therapy, and it appears to be particularly effective in the context of molecular sensitization towards radiotherapy as has been proven in preclinical models of different cancer entities. However, so far the clinical translation has largely been hampered by suboptimal pharmacological properties and serious hepatotoxicity of first- and second-generation HSP90 inhibitors. Here, we report on NW457, a novel radicicol-derived member of the pochoxime family with reduced hepatotoxicity, how it inhibits the DNA damage response and how it synergizes with ionizing irradiation to induce apoptosis, abrogate clonogenic survival, and improve tumor control in models of colorectal cancer in vitro and in vivo.
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Affiliation(s)
- Linda Kinzel
- Department of Radiation Oncology, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Anne Ernst
- Department of Radiation Oncology, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Michael Orth
- Department of Radiation Oncology, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Valerie Albrecht
- Department of Radiation Oncology, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Roman Hennel
- Department of Radiation Oncology, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Nikko Brix
- Department of Radiation Oncology, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Benjamin Frey
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Udo S Gaipl
- Department of Radiation Oncology, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Gabriele Zuchtriegel
- Department of Otorhinolaryngology, Head and Neck Surgery, and Walter Brendel Centre of Experimental Medicine, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Christoph A Reichel
- Department of Otorhinolaryngology, Head and Neck Surgery, and Walter Brendel Centre of Experimental Medicine, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Andreas Blutke
- Institute of Veterinary Pathology at the Center for Clinical Veterinary Medicine, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Daniela Schilling
- Department of Radiation Oncology, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Gabriele Multhoff
- Department of Radiation Oncology, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
| | - Minglun Li
- Department of Radiation Oncology, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Maximilian Niyazi
- Department of Radiation Oncology, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Anna A Friedl
- Department of Radiation Oncology, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Nicolas Winssinger
- Department of Organic Chemistry, NCCR Chemical Biology, University of Geneva, Geneva, Switzerland
| | - Claus Belka
- Department of Radiation Oncology, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Kirsten Lauber
- Department of Radiation Oncology, Ludwig-Maximilians-University Munich, Munich, Germany
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Yeh CN, Chang YC, Su Y, Shin-Shian Hsu D, Cheng CT, Wu RC, Chung YH, Chiang KC, Yeh TS, Lu ML, Liu CY, Mu-Hsin Chang P, Chen MH, Huang CYF, Hsiao M, Chen MH. Identification of MALT1 as both a prognostic factor and a potential therapeutic target of regorafenib in cholangiocarcinoma patients. Oncotarget 2017; 8:113444-113459. [PMID: 29371921 PMCID: PMC5768338 DOI: 10.18632/oncotarget.23049] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 11/14/2017] [Indexed: 12/26/2022] Open
Abstract
Intrahepatic cholangiocarcinoma (CCA) is an aggressive cancer that lacks an effective targeted therapy. Here, we assessed the therapeutic efficacy of regorafenib in CCA, as well as elucidated its underlying mechanism. We first demonstrated that regorafenib not only inhibited growth but also induced apoptosis in human CCA cells. Subsequently, we used in silico approaches to identify MALT1 (Mucosa-associated lymphoid tissue protein 1), which plays an important role in activating NF-κB, as a potential target of regorafenib. Overexpression of Elk-1, but not Ets-1, in HuCCT1 cells markedly reduced their sensitivity to regorafenib, which might be attributed to a significant increase in MALT1 levels. Our results further demonstrated that this drug drastically inhibited MALT1 expression by suppressing the Raf/Erk/Elk-1 pathway. The efficacy of regorafenib in decreasing in vivo CCA growth was confirmed in animal models. Regorafenib efficacy was observed in two MALT1-positive CCA patients who failed to respond to several other lines of therapy. Finally, MALT1 was also identified as an independent poor prognostic factor for patients with intrahepatic CCA. In conclusion, our study identified MALT1 to be a downstream mediator of the Raf/Erk/Elk-1 pathway and suggested that MALT1 may be a new therapeutic target for successful treatment of CCA by regorafenib.
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Affiliation(s)
- Chun-Nan Yeh
- Department of Surgery, Liver Research Center, Chang Gung Memorial Hospital, Chang Gung University, Taoyuan, Taiwan
| | - Yu-Chan Chang
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Yeu Su
- Institute of Biopharmaceutical Sciences, National Yang-Ming University, Taipei, Taiwan
| | | | - Chi-Tung Cheng
- Department of Surgery, Liver Research Center, Chang Gung Memorial Hospital, Chang Gung University, Taoyuan, Taiwan
| | - Ren-Chin Wu
- Department of Pathology, Chang Gung Memorial Hospital, Chang Gung University, Taoyuan, Taiwan
| | - Yi-Hsiu Chung
- Center for Advanced Molecular Imaging and Translation, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Kun-Chun Chiang
- Department of Surgery, Liver Research Center, Chang Gung Memorial Hospital, Chang Gung University, Taoyuan, Taiwan
| | - Ta-Sen Yeh
- Department of Surgery, Liver Research Center, Chang Gung Memorial Hospital, Chang Gung University, Taoyuan, Taiwan
| | - Meng-Lun Lu
- Department of Oncology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Chun-Yu Liu
- Department of Oncology, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Peter Mu-Hsin Chang
- Department of Oncology, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Ming-Han Chen
- School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Chi-Ying F Huang
- Institute of Biopharmaceutical Sciences, National Yang-Ming University, Taipei, Taiwan
| | - Michael Hsiao
- Genomics Research Center, Academia Sinica, Taipei, Taiwan.,Department of Biochemistry, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ming-Huang Chen
- Department of Oncology, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan
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34
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Boroumand N, Saghi H, Avan A, Bahreyni A, Ryzhikov M, Khazaei M, Hassanian SM. Therapeutic potency of heat-shock protein-90 pharmacological inhibitors in the treatment of gastrointestinal cancer, current status and perspectives. J Pharm Pharmacol 2017; 70:151-158. [DOI: 10.1111/jphp.12824] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 08/26/2017] [Indexed: 12/30/2022]
Abstract
Abstract
Objectives
Heat-shock protein-90 (HSP90) chaperone machinery is critical to the folding, stability and activity of several client proteins including many responsible for tumour initiation, progression and metastasis. Overexpression of HSP90 is correlated with poor prognosis of GI cancer.
Key findings
Pharmacological inhibitors of HSP90 suppress tumorigenic effects of HSP90 by suppressing angiogenesis, survival, metastasis and drug resistance in GI cancer. This review summarizes the role of HSP90 inhibitors in the treatment of GI cancer.
Summary
We have presented different antitumour mechanisms of HSP90 inhibitors in cancer treatment. Suppression of HSP90 signalling via specific and novel pharmacological inhibitors is a potentially novel therapeutic approach for patients with GI cancer for a better understanding and hence a better management of this disease.
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Affiliation(s)
- Nadia Boroumand
- Department of Medical Biochemistry, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hossein Saghi
- Department of Medical Biochemistry, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amir Avan
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Molecular Medicine Group, Department of Modern Sciences and Technologies, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amirhossein Bahreyni
- Department of Clinical Biochemistry and Immunogenetic Research Center, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Mazandaran, Iran
| | - Mikhail Ryzhikov
- Division of Pulmonary and Critical Care Medicine, Washington University, School of Medicine, Saint Louis, MO, USA
| | - Majid Khazaei
- Department of Medical Physiology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Mahdi Hassanian
- Department of Medical Biochemistry, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Microanatomy Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
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35
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Oda Y, Yamamoto H, Kohashi K, Yamada Y, Iura K, Ishii T, Maekawa A, Bekki H. Soft tissue sarcomas: From a morphological to a molecular biological approach. Pathol Int 2017; 67:435-446. [DOI: 10.1111/pin.12565] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 07/05/2017] [Indexed: 01/07/2023]
Affiliation(s)
- Yoshinao Oda
- Department of Anatomic Pathology; Graduate School of Medical Sciences; Kyushu University; 3-1-1 Maidashi Higashi-ku Fukuoka 812-8582 Japan
| | - Hidetaka Yamamoto
- Department of Anatomic Pathology; Graduate School of Medical Sciences; Kyushu University; 3-1-1 Maidashi Higashi-ku Fukuoka 812-8582 Japan
| | - Kenichi Kohashi
- Department of Anatomic Pathology; Graduate School of Medical Sciences; Kyushu University; 3-1-1 Maidashi Higashi-ku Fukuoka 812-8582 Japan
| | - Yuichi Yamada
- Department of Anatomic Pathology; Graduate School of Medical Sciences; Kyushu University; 3-1-1 Maidashi Higashi-ku Fukuoka 812-8582 Japan
| | - Kunio Iura
- Department of Anatomic Pathology; Graduate School of Medical Sciences; Kyushu University; 3-1-1 Maidashi Higashi-ku Fukuoka 812-8582 Japan
- Department of Orthopedic Surgery; Graduate School of Medical Sciences; Kyushu University; 3-1-1 Maidashi Higashi-ku Fukuoka 812-8582 Japan
| | - Takeaki Ishii
- Department of Anatomic Pathology; Graduate School of Medical Sciences; Kyushu University; 3-1-1 Maidashi Higashi-ku Fukuoka 812-8582 Japan
- Department of Orthopedic Surgery; Graduate School of Medical Sciences; Kyushu University; 3-1-1 Maidashi Higashi-ku Fukuoka 812-8582 Japan
| | - Akira Maekawa
- Department of Anatomic Pathology; Graduate School of Medical Sciences; Kyushu University; 3-1-1 Maidashi Higashi-ku Fukuoka 812-8582 Japan
- Department of Orthopedic Surgery; Graduate School of Medical Sciences; Kyushu University; 3-1-1 Maidashi Higashi-ku Fukuoka 812-8582 Japan
| | - Hirofumi Bekki
- Department of Anatomic Pathology; Graduate School of Medical Sciences; Kyushu University; 3-1-1 Maidashi Higashi-ku Fukuoka 812-8582 Japan
- Department of Orthopedic Surgery; Graduate School of Medical Sciences; Kyushu University; 3-1-1 Maidashi Higashi-ku Fukuoka 812-8582 Japan
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36
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Rahnemai-Azar AA, Weisbrod AB, Dillhoff M, Schmidt C, Pawlik TM. Intrahepatic cholangiocarcinoma: current management and emerging therapies. Expert Rev Gastroenterol Hepatol 2017; 11:439-449. [PMID: 28317403 DOI: 10.1080/17474124.2017.1309290] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Intrahepatic cholangiocarcinoma (iCCA) is a malignancy with an increasing incidence and a high-case fatality. While surgery offers the best hope at long-term survival, only one-third of tumors are amenable to surgical resection at the time of the diagnosis. Unfortunately, conventional chemotherapy offers limited survival benefit in the management of unresectable or metastatic disease. Recent advances in understanding the molecular pathogenesis of iCCA and the use of next-generation sequencing techniques have provided a chance to identify 'target-able' molecular aberrations. These novel molecular therapies offer the promise to personalize therapy for patients with iCCA and, in turn, improve the outcomes of patients. Area covered: We herein review the current management options for iCCA with a focus on defining both established and emerging therapies. Expert commentary: Surgical resection remains as an only hope for cure in iCCA patients. However, frequently the diagnosis is delayed till advanced stages when surgery cannot be offered; signifying the urge for specific diagnostic tumor biomarkers and targeted therapies. New advances in genomic profiling have contributed to a better understanding of the landscape of molecular alterations in iCCA and offer hope for the development of novel diagnostic biomarkers and targeted therapies.
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Affiliation(s)
- Amir A Rahnemai-Azar
- a Department of Surgery , University of Washington Medical Center , Seattle , WA , USA
| | - Allison B Weisbrod
- b Department of Surgery , The Ohio State University Wexner Medical Center , Columbus , OH , USA
| | - Mary Dillhoff
- b Department of Surgery , The Ohio State University Wexner Medical Center , Columbus , OH , USA
| | - Carl Schmidt
- b Department of Surgery , The Ohio State University Wexner Medical Center , Columbus , OH , USA
| | - Timothy M Pawlik
- b Department of Surgery , The Ohio State University Wexner Medical Center , Columbus , OH , USA
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37
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HSP90 inhibitor 17-DMAG exerts anticancer effects against gastric cancer cells principally by altering oxidant-antioxidant balance. Oncotarget 2017; 8:56473-56489. [PMID: 28915605 PMCID: PMC5593576 DOI: 10.18632/oncotarget.17007] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Accepted: 03/07/2017] [Indexed: 01/13/2023] Open
Abstract
Heat shock protein 90 (HSP90) stabilizes numerous oncoproteins and, therefore, its inhibition has emerged as a promising antineoplastic strategy for diverse malignancies. In this study, we determined the therapeutic effects and mechanisms of action of a specific HSP90 inhibitor, 17-dimethylamino-ethylamino-17-demethoxygeldanamycin (17-DMAG), in gastric cancer cell lines (AGS, SNU-1, and KATO-III), patient-derived tissues, and a mouse xenograft model. 17-DMAG exerted anticancer effects against gastric cancer cells, manifested by significantly decreased proliferation rates (P < 0.05) and increased expression of apoptotic markers. Flow cytometry using dichlorofluorescein (DCF) diacetate revealed that 17-DMAG dose-dependently increases reactive oxygen species (ROS) levels in gastric cancer cells. Inhibition of ROS by N-acetyl-L-cysteine (NAC) abrogated the proapoptotic effects of 17-DMAG, as demonstrated by the decreased expression of proapoptotic proteins. In addition, 17-DMAG dose- and time-dependently reduced the expression of antioxidants such as catalase and glutathione peroxidase (GPx). Moreover, 17-DMAG reduced the expression of nuclear respiratory factor (NRF)-1 and NRF-2, and prevented them from migrating from the cytoplasm to the nucleus dose-dependently. Finally, in a nude mouse xenograft model, the shrinkage of tumors was more prominent in mice treated with 17-DMAG than in control mice (P < 0.05). Taken altogether, our results suggest that 17-DMAG exerts potent antineoplastic activity against gastric cancer cells primarily by promoting ROS generation and suppressing antioxidant enzyme activities.
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38
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Rahnemai-Azar AA, Weisbrod A, Dillhoff M, Schmidt C, Pawlik TM. Intrahepatic cholangiocarcinoma: Molecular markers for diagnosis and prognosis. Surg Oncol 2017; 26:125-137. [PMID: 28577718 DOI: 10.1016/j.suronc.2016.12.009] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Revised: 12/24/2016] [Accepted: 12/29/2016] [Indexed: 02/08/2023]
Abstract
Intrahepatic cholangiocarcinoma (iCCA) is the second most common primary liver tumor with increasing incidence worldwide. The outcome of patients with iCCA is dismal owing to tumor's aggressiveness, late diagnosis and lack of effective treatment options. Detection of the tumor at early stages may make surgical resection, as only potential curative treatment, more feasible. Unfortunately, despite recent developments in imaging modalities and laboratory tests, the diagnosis of iCCA remains challenging and patients often present in advanced stages when surgery cannot be offered. Moreover, accurate assessment of disease burden is critical to optimize management strategy, including the use of adjuvant therapies and clinical trials. Identifying iCCA specific diagnostic and prognostic biomarkers has been a focus of interest among many investigators with a progressive increase in data on iCCA related to advances in "omics" technologies. We herein summarize iCCA biomarkers and define the molecular mechanisms underlying iCCA carcinogenesis, as well as highlight potential diagnostic and prognostic application of molecular biomarkers.
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Affiliation(s)
- Amir A Rahnemai-Azar
- Department of Surgery, University of Washington Medical Center, Seattle, WA, USA
| | - Allison Weisbrod
- Department of Surgery, The Ohio State University, Wexner Medical Center, Columbus, OH, USA
| | - Mary Dillhoff
- Department of Surgery, The Ohio State University, Wexner Medical Center, Columbus, OH, USA
| | - Carl Schmidt
- Department of Surgery, The Ohio State University, Wexner Medical Center, Columbus, OH, USA
| | - Timothy M Pawlik
- Department of Surgery, The Ohio State University, Wexner Medical Center, Columbus, OH, USA.
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39
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Zhu L, Huang F, Deng G, Nie W, Huang W, Xu H, Zheng S, Yi Z, Wan T. Knockdown of Sall4 inhibits intrahepatic cholangiocarcinoma cell migration and invasion in ICC-9810 cells. Onco Targets Ther 2016; 9:5297-305. [PMID: 27601921 PMCID: PMC5005002 DOI: 10.2147/ott.s107214] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
In spite of improvements in surgical technology, the resectability and curability of intrahepatic cholangiocarcinoma (ICC) are still low. Our previous study showed that the strong Sal-like protein 4 (Sall4)-positive cases had shorter overall survival compared to Sall4-negative cases, indicating an oncogenic role of Sall4 in ICC. In this study, we aimed to explore the precise mechanism of Sall4 on ICC cell invasion and metastasis. We evaluated the expression of Sall4, PTEN, and Bmi-1 in 28 cases of adjacent tissues and 175 cases of ICC tissues by using immunohistochemical staining. We found that the expression of Sall4 and Bmi-1 was significantly increased in ICC tissues compared with the adjacent tissues, while PTEN expression was reduced in ICC tissues compared with the adjacent tissues, and there was a reverse relationship between Sall4 and PTEN in ICC, whereas there was a positive correlation in Sall4 and Bmi-1 expression in ICC. In addition, overall survival analysis showed that ICC patients with low PTEN exhibited a worse prognosis than ICC patients with high PTEN, and lower Bmi-1 expression showed a better prognosis than ICC patients with high Bmi-1. By a battery of experiments in vitro, we demonstrated that Sall4 promotes ICC cell proliferation, and progression of ICC might be through PTEN/PI3K/Akt and Bmi-1/Wnt/β-catenin signaling and enhancing epithelial-mesenchymal transition process. Thus, Sall4 may be a potential target for the treatment of ICC metastasis.
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Affiliation(s)
- Lei Zhu
- Department of Hepatobiliary and Pancreatic Surgery, The Third Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China
| | - Feizhou Huang
- Department of Hepatobiliary and Pancreatic Surgery, The Third Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China
| | - Gang Deng
- Department of Hepatobiliary and Pancreatic Surgery, The Third Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China
| | - Wanpin Nie
- Department of Hepatobiliary and Pancreatic Surgery, The Third Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China
| | - Wei Huang
- Department of Hepatobiliary and Pancreatic Surgery, The Third Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China
| | - Hongbo Xu
- Department of Hepatobiliary and Pancreatic Surgery, The Third Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China
| | - Shaopeng Zheng
- Department of Hepatobiliary and Pancreatic Surgery, The Third Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China
| | - Zhongjie Yi
- Department of Hepatobiliary and Pancreatic Surgery, The Third Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China
| | - Tao Wan
- Department of Hepatobiliary and Pancreatic Surgery, The Third Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China
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Chen MH, Yen CC, Cheng CT, Wu RC, Huang SC, Yu CS, Chung YH, Liu CY, Chang PMH, Chao Y, Chen MH, Chen YF, Chiang KC, Yeh TS, Chen TC, Huang CYF, Yeh CN. Identification of SPHK1 as a therapeutic target and marker of poor prognosis in cholangiocarcinoma. Oncotarget 2016; 6:23594-608. [PMID: 26090720 PMCID: PMC4695139 DOI: 10.18632/oncotarget.4335] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Accepted: 05/30/2015] [Indexed: 01/01/2023] Open
Abstract
Cholangiocarcinoma (CCA) is characterized by a uniquely aggressive behavior and lack of effective targeted therapies. After analyzing the gene expression profiles of seven paired intrahepatic CCA microarrays, a novel sphingosine kinase 1 (SPHK1)/sphingosine-1-phosphate (S1P) pathway and a novel target gene, SPHK1, were identified. We hypothesized that therapeutic targeting of this pathway can be used to kill intrahepatic cholangiocarcinoma (CCA) cells. High levels of SPHK1 protein expression, which was evaluated by immunohistochemical staining of samples from 96 patients with intrahepatic CCA, correlated with poor overall survival. The SPHK1 inhibitor SK1-I demonstrated potent antiproliferative activity in vitro and in vivo. SK1-I modulated the balance of ceramide-sphinogosine-S1P and induced CCA apoptosis. Furthermore, SK1-I combined with JTE013, an antagonist of the predominant S1P receptor S1PR2, inhibited the AKT and ERK signaling pathways in CCA cells. Our preclinical data suggest SPHK1/S1P pathway targeting may be an effective treatment option for patients with CCA.
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Affiliation(s)
- Ming-Huang Chen
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan.,Division of Hematology and Oncology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Chueh-Chuan Yen
- Division of Hematology and Oncology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Chi-Tung Cheng
- Department of Surgery, Chang Gung Memorial Hospital, Chang Gung University, Taoyuan, Taiwan
| | - Ren-Chin Wu
- Department of Pathology, Chang Gung Memorial Hospital, Chang Gung University, Taoyuan, Taiwan
| | - Shih-Chiang Huang
- Department of Pathology, Chang Gung Memorial Hospital, Chang Gung University, Taoyuan, Taiwan
| | - Chung-Shan Yu
- Department of Biomedical Engineering and Environmental Sciences, National Tsing-Hua University, Hsinchu, Taiwan
| | - Yi-Hsiu Chung
- Center for Advanced Molecular Imaging and Translation, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Chun-Yu Liu
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan.,Division of Hematology and Oncology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Peter Mu-Hsin Chang
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan.,Division of Hematology and Oncology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yee Chao
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan.,Department of Oncology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Ming-Han Chen
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Yu-Fen Chen
- Division of Hematology and Oncology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Kun-Chun Chiang
- Department of General Surgery, Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Ta-Sen Yeh
- Department of Surgery, Chang Gung Memorial Hospital, Chang Gung University, Taoyuan, Taiwan
| | - Tzu Chi Chen
- Institute of Clinical Medicine and Institute of Biopharmaceutical Sciences National Yang-Ming University, Taipei, Taiwan
| | - Chi-Ying F Huang
- Institute of Clinical Medicine and Institute of Biopharmaceutical Sciences National Yang-Ming University, Taipei, Taiwan
| | - Chun-Nan Yeh
- Department of Surgery, Chang Gung Memorial Hospital, Chang Gung University, Taoyuan, Taiwan
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Zhu Z, Chen W, Yin X, Lai J, Wang Q, Liang L, Wang W, Wang A, Zheng C. WAVE3 Induces EMT and Promotes Migration and Invasion in Intrahepatic Cholangiocarcinoma. Dig Dis Sci 2016; 61:1950-60. [PMID: 26971088 DOI: 10.1007/s10620-016-4102-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Accepted: 02/25/2016] [Indexed: 02/08/2023]
Abstract
BACKGROUND Wiskott-Aldrich syndrome protein family verprolin-homologous protein 3 (WAVE3) plays a critical role in cancer progression and metastasis. However, the specific role of WAVE3 in intrahepatic cholangiocarcinoma (ICC) has not been studied. AIMS This study aimed to explore the role and mechanism of WAVE3 in the progression and metastasis of ICC. METHODS The expression of WAVE3 in ICC tissues and adjacent non-cancerous tissues was detected by immunohistochemistry. Western blot analysis was utilized to detect the expression of WAVE3 in ICC cells. A transwell assay was used to assess the potential for migration and invasion. The expression of WAVE3 in CC-LP-1 cells was knocked down by small interfering RNA (siRNA) interference. RESULTS The expression of WAVE3 in ICC tissues was significantly higher than that in adjacent non-cancerous tissues. The overall survival was lower in the subgroup of ICC patients with higher WAVE3 expression compared to the subgroup with a lower level of WAVE3 expression. WAVE3 expression was an adverse prognostic factor for ICC patients. CC-LP-1 cells expressed higher levels of WAVE3 protein compared to RBE cells and human intrahepatic biliary epithelial cells, which correlated with greater migration and invasion capabilities compared with the RBE cells. After the transfection of CC-LP-1 cells with WAVE3 siRNA, the level of WAVE3 protein was significantly decreased, accompanied by a marked reduction in migration, invasion and proliferation. Moreover, after the knockdown of WAVE3 expression in CC-LP-1 cells, the protein levels of Slug and Vimentin were significantly decreased, while that of E-cadherin was significantly increased. CONCLUSIONS WAVE3 may represent a new adverse prognostic factor for patients with ICC. This protein enhances migration and invasion capabilities in ICC, most likely through the induction of an epithelial-mesenchymal transition.
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Affiliation(s)
- Zebin Zhu
- Department of Pancreato-biliary Surgery, The First Affiliated Hospital of Sun Yat-Sen University, 58 Zhongshan Road II, Guangzhou, 510080, China
| | - Wei Chen
- Department of Pancreato-biliary Surgery, The First Affiliated Hospital of Sun Yat-Sen University, 58 Zhongshan Road II, Guangzhou, 510080, China
| | - Xiaoyu Yin
- Department of Pancreato-biliary Surgery, The First Affiliated Hospital of Sun Yat-Sen University, 58 Zhongshan Road II, Guangzhou, 510080, China
| | - Jiaming Lai
- Department of Pancreato-biliary Surgery, The First Affiliated Hospital of Sun Yat-Sen University, 58 Zhongshan Road II, Guangzhou, 510080, China
| | - Qian Wang
- Department of Pancreato-biliary Surgery, The First Affiliated Hospital of Sun Yat-Sen University, 58 Zhongshan Road II, Guangzhou, 510080, China
| | - Lijian Liang
- Department of Pancreato-biliary Surgery, The First Affiliated Hospital of Sun Yat-Sen University, 58 Zhongshan Road II, Guangzhou, 510080, China
| | - Wei Wang
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Anxun Wang
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Chaoxu Zheng
- Department of Pancreato-biliary Surgery, The First Affiliated Hospital of Sun Yat-Sen University, 58 Zhongshan Road II, Guangzhou, 510080, China.
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42
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Luo AH, Zhang GF, Yin YF, Li X, Feng DL, Xie CH. Complete sequence of a cholangiocarcinoma inbred Sprague-Dawley rat model mitochondrial genome. Mitochondrial DNA A DNA Mapp Seq Anal 2016; 27:1732-1733. [PMID: 25259455 DOI: 10.3109/19401736.2014.961144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In the present work we undertook the complete mitochondrial genome sequencing of an important cholangiocarcinoma model inbred rat strain for the first time. Its mitogenome was 16,312 bp and coding 13 protein-coding genes, 2 ribosomal RNA genes, 22 transfer RNA genes. A total of 96 SNPs were examined when compared to reference BN sequence.
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Affiliation(s)
- Ai-Hua Luo
- a Department of Radiation & Medical Oncology , Zhongnan Hospital, Wuhan University , Wuhan , P.R. China
- c Department of Radiation & Medical Oncology , Yichang Second People's Hospital , Yichang , P.R. China , and
| | - Gao-Feng Zhang
- b Department of Internal Medicine , Yichang City Hospital of Traditional Chinese Medicine , Yichang , P.R. China
| | - Yi-Fa Yin
- c Department of Radiation & Medical Oncology , Yichang Second People's Hospital , Yichang , P.R. China , and
| | - Xin Li
- c Department of Radiation & Medical Oncology , Yichang Second People's Hospital , Yichang , P.R. China , and
| | - Da-Li Feng
- a Department of Radiation & Medical Oncology , Zhongnan Hospital, Wuhan University , Wuhan , P.R. China
- c Department of Radiation & Medical Oncology , Yichang Second People's Hospital , Yichang , P.R. China , and
| | - Cong-Hua Xie
- a Department of Radiation & Medical Oncology , Zhongnan Hospital, Wuhan University , Wuhan , P.R. China
- c Department of Radiation & Medical Oncology , Yichang Second People's Hospital , Yichang , P.R. China , and
- d Hubei Key Laboratory of Tumor Biological Behaviors , Zhongnan Hospital, Wuhan University , Wuhan , P.R. China
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43
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Brandi G, Farioli A, Astolfi A, Biasco G, Tavolari S. Genetic heterogeneity in cholangiocarcinoma: a major challenge for targeted therapies. Oncotarget 2016; 6:14744-53. [PMID: 26142706 PMCID: PMC4558112 DOI: 10.18632/oncotarget.4539] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Accepted: 06/11/2015] [Indexed: 02/07/2023] Open
Abstract
Cholangiocarcinoma (CC) encompasses a group of related but distinct malignancies whose lack of a stereotyped genetic signature makes challenging the identification of genomic landscape and the development of effective targeted therapies. Accumulated evidences strongly suggest that the remarkable genetic heterogeneity of CC may be the result of a complex interplay among different causative factors, some shared by most human cancers while others typical of this malignancy. Currently, considerable efforts are ongoing worldwide for the genetic characterization of CC, also using advanced technologies such as next-generation sequencing (NGS). Undoubtedly this technology could offer an unique opportunity to broaden our understanding on CC molecular pathogenesis. Despite this great potential, however, the high complexity in terms of factors potentially contributing to genetic variability in CC calls for a more cautionary application of NGS to this malignancy, in order to avoid possible biases and criticisms in the identification of candidate actionable targets. This approach is further justified by the urgent need to develop effective targeted therapies in this disease. A multidisciplinary approach integrating genomic, functional and clinical studies is therefore mandatory to translate the results obtained by NGS into effective targeted therapies for this orphan disease.
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Affiliation(s)
- Giovanni Brandi
- Department of Experimental, Diagnostic and Specialty Medicine, S. Orsola-Malpighi University Hospital, Bologna, Italy.,"G. Prodi" Interdepartmental Center for Cancer Research (C.I.R.C.), University of Bologna, Bologna, Italy.,GICO- Italian Group of Cholangiocarcinoma, Italy
| | - Andrea Farioli
- Department of Medical and Surgical Sciences, S. Orsola-Malpighi University Hospital, Bologna, Italy
| | - Annalisa Astolfi
- "G. Prodi" Interdepartmental Center for Cancer Research (C.I.R.C.), University of Bologna, Bologna, Italy
| | - Guido Biasco
- Department of Experimental, Diagnostic and Specialty Medicine, S. Orsola-Malpighi University Hospital, Bologna, Italy.,"G. Prodi" Interdepartmental Center for Cancer Research (C.I.R.C.), University of Bologna, Bologna, Italy
| | - Simona Tavolari
- Department of Experimental, Diagnostic and Specialty Medicine, S. Orsola-Malpighi University Hospital, Bologna, Italy.,Center for Applied Biomedical Research (C.R.B.A.), S. Orsola- Malpighi University Hospital, Bologna, Italy
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44
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Hu J, Yin B. Advances in biomarkers of biliary tract cancers. Biomed Pharmacother 2016; 81:128-135. [PMID: 27261586 DOI: 10.1016/j.biopha.2016.02.045] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 02/16/2016] [Accepted: 02/16/2016] [Indexed: 12/14/2022] Open
Abstract
Tumor biomarkers can be applied for early diagnosis or precise treatment, thereby leading to personalized treatment and better outcomes. Biliary tract cancers (BTCs) are a group of cancers that occurs in different locations and have different clinical or genetic properties. Though the incidence of BTCs is rare, BTCs are among the most lethal cancers in the world and all have very low 5-year survivals. Lack of efficient early diagnostic approaches or adjuvant therapies for BTCs are main reasons. These urge us to broaden the researches into BTC biomarkers. Although few progresses of diagnostic biomarkers for BTCs have been achieved, there are still some advances in prognostic, predictive and therapeutic areas. In this review, we will focus on these achievements.
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Affiliation(s)
- Jun Hu
- Department of General Surgery, Huashan Hosptial, Fudan University, Shanghai 200040, PR China.
| | - Baobing Yin
- Department of General Surgery, Huashan Hosptial, Fudan University, Shanghai 200040, PR China; Department of General Surgery, Jing'an Branch of Huashan Hospital, Fudan University (Jing'an District Centre Hospital of Shanghai), Shanghai 200040, PR China.
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45
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Yang H, Lu X, Liu Z, Chen L, Xu Y, Wang Y, Wei G, Chen Y. FBXW7 suppresses epithelial-mesenchymal transition, stemness and metastatic potential of cholangiocarcinoma cells. Oncotarget 2016; 6:6310-25. [PMID: 25749036 PMCID: PMC4467439 DOI: 10.18632/oncotarget.3355] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Accepted: 01/17/2015] [Indexed: 12/11/2022] Open
Abstract
Epithelial-mesenchymal transition (EMT) plays a fundamental role in cancer metastasis. The ubiquitin ligase FBXW7, a general tumor suppressor in human cancer, has been implicated in diverse cellular processes, however, its role in cholangiocarcinoma (CCA) metastasis has not been identified. Here, we report a crucial role of FBXW7 in CCA metastasis by regulating EMT. Loss of FBXW7 expression was detected in CCA cells and clinical specimens. Clinicopathological analysis revealed a close correlation between FBXW7 deficiency and metastasis, TNM stage and differentiation in intrahepatic CCA and perihilar CCA. Moreover, FBXW7 silencing in CCA cells dramatically promoted EMT, stem-like capacity and metastasis both in vitro and in vivo. Conversely, FBXW7 overexpression attenuated these processes. Mechanistically, treatment with rapamycin, a mTOR inhibitor, inhibited EMT, stem-like capacity and metastasis induced by FBXW7 silencing both in vitro and in vivo. Furthermore, the expression of EMT regulating transcription factors, snail, slug and ZEB1, were also decreased markedly with rapamycin treatment. In addition, silencing ZEB1 inhibited EMT and metastasis of both CCA cells and FBXW7 deficient CCA cells, which implicated the potential role of ZEB1 in FBXW7/mTOR signaling pathway related CCA metastasis. In conclusion, our findings defined a pivotal function of FBXW7 in CCA metastasis by regulating EMT.
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Affiliation(s)
- Hui Yang
- Department of Hepatobiliary Surgery, Qilu Hospital of Shandong University, Jinan, China
| | - Xiaofei Lu
- Department of Hepatobiliary Surgery, Qilu Hospital of Shandong University, Jinan, China.,Department of General Surgery, Jinan Central Hospital of Shandong University, Jinan, China
| | - Ziming Liu
- Department of Emergency Medicine, Jinan Fifth People's Hospital, Jinan, China
| | - Lili Chen
- Department of Pathology, Jinan Fourth People's Hospital, Jinan, China
| | - Yunfei Xu
- Department of Hepatobiliary Surgery, Qilu Hospital of Shandong University, Jinan, China
| | - Yuli Wang
- Department of Anatomy and Key Laboratory of Experimental Teratology, Ministry of Education, Shandong University School of Medicine, Jinan, China
| | - Guangwei Wei
- Department of Anatomy and Key Laboratory of Experimental Teratology, Ministry of Education, Shandong University School of Medicine, Jinan, China
| | - Yuxin Chen
- Department of Hepatobiliary Surgery, Qilu Hospital of Shandong University, Jinan, China
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Inhibition of DNA methyltransferase as a novel therapeutic strategy to overcome acquired resistance to dual PI3K/mTOR inhibitors. Oncotarget 2016; 6:5134-46. [PMID: 25762617 PMCID: PMC4467138 DOI: 10.18632/oncotarget.3016] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Accepted: 12/31/2014] [Indexed: 12/24/2022] Open
Abstract
Dual PI3K/mTOR(phosphatidylinositol 3-kinase/mammalian target of rapamycin) inhibitors are being evaluated clinically for the treatment of tumors with a hyperactivated PI3K/mTOR pathway. However, unexpected outcomes were obtained in clinical studies of cancer patients with an aberrant PI3K pathway. In clinical trials, applicable combination regimens are not yet available. In this study, using an integrated analysis of acquired BEZ235-resistant nasopharyngeal carcinoma cells, we demonstrate that DNA methyltransferase is a key modulator and a common node upstream of the AKT/mTOR and PDK1/MYC pathways, which are activated in cancer cells with acquired BEZ235 resistance. DNA methyltransferases were upregulated and induced PTEN and PPP2R2B gene hypermethylation, which downregulated their expression in BEZ235-resistant cancer cells. Reduced PTEN and PPP2R2B expression correlated with activated AKT/mTOR and PDK1/MYC pathways and conferred considerable BEZ235 resistance in nasopharyngeal carcinoma. Targeting methyltransferases in combination with BEZ235 sensitized BEZ235-resistant cells to BEZ235 in vitro and in vivo, suggesting the potential clinical application of this strategy to overcome BEZ235 resistance.
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47
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Fraveto A, Cardinale V, Bragazzi MC, Giuliante F, De Rose AM, Grazi GL, Napoletano C, Semeraro R, Lustri AM, Costantini D, Nevi L, Di Matteo S, Renzi A, Carpino G, Gaudio E, Alvaro D. Sensitivity of Human Intrahepatic Cholangiocarcinoma Subtypes to Chemotherapeutics and Molecular Targeted Agents: A Study on Primary Cell Cultures. PLoS One 2015; 10:e0142124. [PMID: 26571380 PMCID: PMC4646673 DOI: 10.1371/journal.pone.0142124] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2015] [Accepted: 10/16/2015] [Indexed: 12/15/2022] Open
Abstract
We investigated the sensitivity of intrahepatic cholangiocarcinoma (IHCCA) subtypes to chemotherapeutics and molecular targeted agents. Primary cultures of mucin- and mixed-IHCCA were prepared from surgical specimens (N. 18 IHCCA patients) and evaluated for cell proliferation (MTS assay) and apoptosis (Caspase 3) after incubation (72 hours) with increasing concentrations of different drugs. In vivo, subcutaneous human tumor xenografts were evaluated. Primary cultures of mucin- and mixed-IHCCA were characterized by a different pattern of expression of cancer stem cell markers, and by a different drug sensitivity. Gemcitabine and the Gemcitabine-Cisplatin combination were more active in inhibiting cell proliferation in mixed-IHCCA while Cisplatin or Abraxane were more effective against mucin-IHCCA, where Abraxane also enhances apoptosis. 5-Fluoracil showed a slight inhibitory effect on cell proliferation that was more significant in mixed- than mucin-IHCCA primary cultures and, induced apoptosis only in mucin-IHCCA. Among Hg inhibitors, LY2940680 and Vismodegib showed slight effects on proliferation of both IHCCA subtypes. The tyrosine kinase inhibitors, Imatinib Mesylate and Sorafenib showed significant inhibitory effects on proliferation of both mucin- and mixed-IHCCA. The MEK 1/2 inhibitor, Selumetinib, inhibited proliferation of only mucin-IHCCA while the aminopeptidase-N inhibitor, Bestatin was more active against mixed-IHCCA. The c-erbB2 blocking antibody was more active against mixed-IHCCA while, the Wnt inhibitor, LGK974, similarly inhibited proliferation of mucin- and mixed-IHCCA. Either mucin- or mixed-IHCCA showed high sensitivity to nanomolar concentrations of the dual PI3-kinase/mTOR inhibitor, NVP-BEZ235. In vivo, in subcutaneous xenografts, either NVP-BEZ235 or Abraxane, blocked tumor growth. In conclusion, mucin- and mixed-IHCCA are characterized by a different drug sensitivity. Cisplatin, Abraxane and the MEK 1/2 inhibitor, Selumetinib were more active against mucin-IHCCA while, Gemcitabine, Gemcitabine-Cisplatin combination, the c-erbB2 blocking antibody and bestatin worked better against mixed-IHCCA. Remarkably, we identified a dual PI3-kinase/mTOR inhibitor that both in vitro and in vivo, exerts dramatic antiproliferative effects against both mucin- and mixed-IHCCA.
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Affiliation(s)
- Alice Fraveto
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Rome, Italy
| | - Vincenzo Cardinale
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Rome, Italy
| | - Maria Consiglia Bragazzi
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Rome, Italy
| | - Felice Giuliante
- Surgery, Hepatobiliary Unit, Catholic University of the Sacred Heart School of Medicine, Rome, Italy
| | - Agostino Maria De Rose
- Surgery, Hepatobiliary Unit, Catholic University of the Sacred Heart School of Medicine, Rome, Italy
| | - Gian Luca Grazi
- Hepato-Biliary Surgery, Regina Elena National Cancer Institute, Rome, Italy
| | | | - Rossella Semeraro
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Rome, Italy
| | - Anna Maria Lustri
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Rome, Italy
| | - Daniele Costantini
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Rome, Italy
| | - Lorenzo Nevi
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Rome, Italy
| | - Sabina Di Matteo
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Rome, Italy
| | | | - Guido Carpino
- Health Science, University of Rome “Foro Italico”, Rome, Italy
| | | | - Domenico Alvaro
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Rome, Italy
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Bekki H, Kohashi K, Maekawa A, Yamada Y, Yamamoto H, Harimaya K, Hakozaki M, Nabeshima K, Iwamoto Y, Oda Y. Elevated expression of HSP90 and the antitumor effect of an HSP90 inhibitor via inactivation of the Akt/mTOR pathway in undifferentiated pleomorphic sarcoma. BMC Cancer 2015; 15:804. [PMID: 26502919 PMCID: PMC4623920 DOI: 10.1186/s12885-015-1830-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 10/16/2015] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Undifferentiated pleomorphic sarcoma (UPS) is a heterogeneous tumor group, and little is known about molecular target therapy for UPS. Heat shock protein 90 (HSP90) is an expressed chaperone that refolds certain denatured proteins under stress conditions. One of these proteins is Akt. The disruption of Akt signaling plays an important role in tumor progression. The present study's purpose was to analyze the HSP90 expression, Akt/mTOR pathway activation and the correlation between HSP90 expression and its pathway activation in UPS. METHODS The status of HSP90 and the profiles of the Akt/ mTOR pathway were assessed by immunohistochemistry in 79 samples of UPS, and these data were compared with clinicopathological and histopathological findings. The expressions of indicated proteins were assessed by Western blotting in five frozen samples. After treating UPS cells with the HSP90 inhibitor, we assessed the antitumor effect of the inhibitor. RESULTS Immunohistochemically, phosphorylated Akt (p-Akt), p-mTOR, p-S6RP and p-4EBP were positive in 57.3, 51.9, 54.5 and 57.1% of the UPS samples, respectively. The expressions of those phosphorylated proteins were correlated with each other. HSP90 expression was elevated in 56.4% of the samples and was correlated with p-Akt, p-mTOR and p-S6RP. The immunohistochemical results were confirmed by Western blotting. The HSP90 inhibitor led to decreased viability and invasiveness of the cells and inactivated the AKT/mTOR pathway in vitro. CONCLUSION Elevated expression of HSP90 is a poor-prognosis factor and is involved in the activation of the Akt/mTOR pathway in UPS. HSP90 inhibition is a potential treatment option for UPS.
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Affiliation(s)
- Hirofumi Bekki
- Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashi-ku, Fukuoka, 812-8582, Japan.
| | - Kenichi Kohashi
- Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashi-ku, Fukuoka, 812-8582, Japan.
| | - Akira Maekawa
- Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashi-ku, Fukuoka, 812-8582, Japan.
| | - Yuichi Yamada
- Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashi-ku, Fukuoka, 812-8582, Japan.
| | - Hidetaka Yamamoto
- Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashi-ku, Fukuoka, 812-8582, Japan.
| | - Katsumi Harimaya
- Orthopaedic Surgery, Graduate School of Medical Science, Kyushu University, Fukuoka, Japan.
| | - Michiyuki Hakozaki
- Department of Orthopaedic Surger, Fukushima Medical University School of Medicine, Fukushima, Japan.
| | - Kazuki Nabeshima
- Department of Pathology, Graduate School of Medical Science, Fukuoka University, Fukuoka, Japan.
| | - Yukihide Iwamoto
- Orthopaedic Surgery, Graduate School of Medical Science, Kyushu University, Fukuoka, Japan.
| | - Yoshinao Oda
- Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Maidashi 3-1-1, Higashi-ku, Fukuoka, 812-8582, Japan.
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Abstract
OPINION STATEMENT A paradigm shift towards molecular-based, personalized cancer therapeutics has occurred in recent years and a number of targeted drugs have emerged. Various targeted therapies like erlotinib, trastuzumab, and cetuximab have been approved in lung, breast, and colon cancers, respectively. Numerous clinical trials involving targeted drugs in biliary tract cancers are currently in progress, though none have been approved for this disease. Biliary tract cancers are divided into separate entities both anatomically and in terms of pathogenesis but are grouped together in most trials given their rarity. Combination chemotherapy involving cisplatin and gemcitabine is the current standard of care in the metastatic setting. In this review, we will discuss the various molecular pathways implicated in biliary tract cancers and potential therapeutic targets.
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Affiliation(s)
- Amartej Merla
- Department of Medical Oncology, Montefiore Medical Center, 1695 Eastchester Road, 2nd Floor, Bronx, NY 10461 USA
| | - Kenneth G. Liu
- Department of Medical Oncology, Montefiore Medical Center, 1695 Eastchester Road, 2nd Floor, Bronx, NY 10461 USA
| | - Lakshmi Rajdev
- Department of Medical Oncology, Montefiore Medical Center, 1695 Eastchester Road, 2nd Floor, Bronx, NY 10461 USA
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Shirota T, Ojima H, Hiraoka N, Shimada K, Rokutan H, Arai Y, Kanai Y, Miyagawa S, Shibata T. Heat Shock Protein 90 Is a Potential Therapeutic Target in Cholangiocarcinoma. Mol Cancer Ther 2015; 14:1985-93. [PMID: 26141945 DOI: 10.1158/1535-7163.mct-15-0069] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 06/22/2015] [Indexed: 12/31/2022]
Abstract
Cholangiocarcinoma is an aggressive malignancy with a poor prognosis, with no effective therapy other than surgical resection. Heat shock protein 90 (HSP90) is a key component of a multichaperone complex involved in the posttranslational folding of a number of client proteins, many of which play essential roles in tumorigenesis. Here, we attempted to clarify its prognostic significance and potential utility as a therapeutic target in cholangiocarcinoma. Immunohistochemical expression of HSP90 was assessed retrospectively in 399 cholangiocarcinoma cases and 17 human cholangiocarcinoma cell lines, along with the effect of a small-molecule HSP90 inhibitor (NVP-AUY922) on cholangiocarcinoma tumor growth and angiogenesis in human cholangiocarcinoma cell lines and xenografts. The positivity of HSP90 was 44.6% in intrahepatic cholangiocarcinoma (IHCC) and 32.8% in extrahepatic cholangiocarcinoma (EHCC), respectively. HSP90 expression was significantly associated with the 5-year survival rate for IHCC (P < 0.001) and EHCC (P < 0.001). HSP90 inhibition showed potent antiproliferative activity and reduced growth-associated signaling in human cholangiocarcinoma cells in vitro. Furthermore, treatment of cholangiocarcinoma xenograft-bearing mice with NVP-AUY922 significantly inhibited growth at doses far below the maximum-tolerated dose. HSP90 overexpression is a prognostic marker for cholangiocarcinoma. HSP90-targeted therapy may be an option for a subset of cholangiocarcinoma.
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Affiliation(s)
- Tomoki Shirota
- Division of Cancer Genomics, National Cancer Center Research Institute, Tokyo, Japan. Division of Surgery, Shinshu University School of Medicine, Nagano, Japan
| | - Hidenori Ojima
- Division of Molecular Pathology, National Cancer Center Research Institute, Tokyo, Japan
| | - Nobuyoshi Hiraoka
- Division of Molecular Pathology, National Cancer Center Research Institute, Tokyo, Japan
| | - Kazuaki Shimada
- Hepatobiliary and Pancreatic Surgery Division, National Cancer Center Hospital, Tokyo, Japan
| | - Hirofumi Rokutan
- Division of Cancer Genomics, National Cancer Center Research Institute, Tokyo, Japan
| | - Yasuhito Arai
- Division of Cancer Genomics, National Cancer Center Research Institute, Tokyo, Japan
| | - Yae Kanai
- Division of Molecular Pathology, National Cancer Center Research Institute, Tokyo, Japan
| | - Shinichi Miyagawa
- Division of Surgery, Shinshu University School of Medicine, Nagano, Japan
| | - Tatsuhiro Shibata
- Division of Cancer Genomics, National Cancer Center Research Institute, Tokyo, Japan. Laboratory of Molecular Medicine, Human Genome Center, The Institute of Medical Science, the University of Tokyo, Tokyo, Japan.
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