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Pan J, Tong F, Ren N, Ren L, Yang Y, Gao F, Xu Q. Role of N 6‑methyladenosine in the pathogenesis, diagnosis and treatment of prostate cancer (Review). Oncol Rep 2024; 51:88. [PMID: 38757383 PMCID: PMC11110010 DOI: 10.3892/or.2024.8747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 04/19/2024] [Indexed: 05/18/2024] Open
Abstract
Prostate cancer (PCa) affects males of all racial and ethnic groups, and leads to higher rates of mortality in those belonging to a lower socioeconomic status due to the late detection of the disease. PCa affects middle‑aged males between the ages of 45 and 60 years, and is the highest cause of cancer‑associated mortality in Western countries. As the most abundant and common mRNA modification in higher eukaryotes, N6‑methyladenosine (m6A) is widely distributed in mammalian cells and influences various aspects of mRNA metabolism. Recent studies have found that abnormal expression levels of various m6A regulators significantly affect the development and progression of various types of cancer, including PCa. The present review discusses the influence of m6A regulatory factors on the pathogenesis and progression of PCa through mRNA modification based on the current state of research on m6A methylation modification in PCa. It is considered that the treatment of PCa with micro‑molecular drugs that target the epigenetics of the m6A regulator to correct abnormal m6A modifications is a direction for future research into current diagnostic and therapeutic approaches for PCa.
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Affiliation(s)
- Junjie Pan
- Department of Clinical Pharmacology, Key Laboratory of Clinical Cancer Pharmacology and Toxicology Research of Zhejiang Province, Affiliated Hangzhou First People's Hospital, Cancer Center, Westlake University School of Medicine, Hangzhou, Zhejiang 310006, P.R. China
- Fourth Clinical Medical College of Zhejiang Chinese Medical University, Affiliated Hangzhou First People's Hospital, Hangzhou, Zhejiang 310051, P.R. China
| | - Fei Tong
- Department of Pharmacy, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510280, P.R. China
| | - Ning Ren
- Fourth Clinical Medical College of Zhejiang Chinese Medical University, Affiliated Hangzhou First People's Hospital, Hangzhou, Zhejiang 310051, P.R. China
| | - Lanqi Ren
- Fourth Clinical Medical College of Zhejiang Chinese Medical University, Affiliated Hangzhou First People's Hospital, Hangzhou, Zhejiang 310051, P.R. China
| | - Yibei Yang
- Fourth Clinical Medical College of Zhejiang Chinese Medical University, Affiliated Hangzhou First People's Hospital, Hangzhou, Zhejiang 310051, P.R. China
| | - Feng Gao
- Department of Urology, Hangzhou Hospital of Traditional Chinese Medicine, Hangzhou, Zhejiang 310007, P.R. China
| | - Qiaoping Xu
- Department of Clinical Pharmacology, Key Laboratory of Clinical Cancer Pharmacology and Toxicology Research of Zhejiang Province, Affiliated Hangzhou First People's Hospital, Cancer Center, Westlake University School of Medicine, Hangzhou, Zhejiang 310006, P.R. China
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Dombroski JA, Antunovic M, Schaffer KR, Hurley PJ, King MR. Activation of Dendritic Cells Isolated from the Blood of Patients with Prostate Cancer by Ex Vivo Fluid Shear Stress Stimulation. Curr Protoc 2023; 3:e933. [PMID: 38047658 PMCID: PMC11178276 DOI: 10.1002/cpz1.933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
Prostate cancer is one of the most common cancers among men in the United States and a leading cause of cancer-related death in men. Treatment options for patients with advanced prostate cancer include hormone therapies, chemotherapies, radioligand therapies, and immunotherapies. Provenge (sipuleucel-T) is an autologous cancer-vaccine-based immunotherapy approved for men with asymptomatic or minimally symptomatic metastatic castration-resistant prostate cancer (mCRPC). Administration of sipuleucel-T involves leukapheresis of patient blood to isolate antigen-presenting cells (APCs), including dendritic cells (DCs), and subsequent incubation of isolated APCs with both an antigen, prostatic acid phosphatase (PAP), and granulocyte macrophage-colony stimulating factor (GM-CSF) before their infusion back into the patient. Although sipuleucel-T has been shown to improve overall survival, other meaningful outcomes, such as prostate-specific antigen (PSA) levels and radiographic response, are inconsistent. This lack of robust response may be due to limited ex vivo activation of DCs using current protocols. Earlier studies have shown that many cell types can be activated ex vivo by external forces such as fluid shear stress (FSS). We hypothesize that novel fluid shear stress technologies and methods can be used to improve ex vivo efficacy of prostate cancer DC activation in prostate cancer. Herein, we report a new protocol for activating DCs from patients with prostate cancer using ex vivo fluid shear stress. Ultimately, the goal of these studies is to improve DC activation to expand the efficacy of therapies such as sipuleucel-T. © 2023 The Authors. Current Protocols published by Wiley Periodicals LLC. Basic Protocol 1: Sample collection and DC isolation Basic Protocol 2: Determination and application of fluid shear stress Basic Protocol 3: Flow cytometry analysis of DCs after FSS stimulation.
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Affiliation(s)
- Jenna A. Dombroski
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, United States
| | - Monika Antunovic
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Kerry R. Schaffer
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, United States
- Vanderbilt-Ingram Cancer Center, Nashville, TN, United States
| | - Paula J. Hurley
- Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, United States
- Vanderbilt-Ingram Cancer Center, Nashville, TN, United States
| | - Michael R. King
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, United States
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Anwaier A, Zhu SX, Tian X, Xu WH, Wang Y, Palihati M, Wang WY, Shi GH, Qu YY, Zhang HL, Ye DW. Large-Scale Proteomics Data Reveal Integrated Prognosis-Related Protein Signatures and Role of SMAD4 and RAD50 in Prognosis and Immune Infiltrations of Prostate Cancer Microenvironment. PHENOMICS (CHAM, SWITZERLAND) 2022; 2:404-418. [PMID: 36939777 PMCID: PMC9712904 DOI: 10.1007/s43657-022-00070-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 07/28/2022] [Accepted: 08/04/2022] [Indexed: 12/24/2022]
Abstract
As prostate cancer (PCa) is one of the most commonly diagnosed cancer worldwide, identifying potential prognostic biomarkers is crucial. In this study, the survival information, gene expression, and protein expression data of 344 PCa cases were collected from the Cancer Proteome Atlas (TCPA) and the Cancer Genome Atlas (TCGA) to investigate the potential prognostic biomarkers. The integrated prognosis-related proteins (IPRPs) model was constructed based on the risk score of each patients using machine-learning algorithm. IPRPs model suggested that Elevated RAD50 expression (p = 0.016) and down-regulated SMAD4 expression (p = 0.017) were significantly correlated with unfavorable outcomes for PCa patients. Immunohistochemical (IHC) staining and western blot (WB) analysis revealed significant differential expression of SMAD4 and RAD50 protein between tumor and normal tissues in validation cohort. According to the overall IHC score, patients with low SMAD4 (p < 0.0001) expression and high RAD50 expression (p = 0.0001) were significantly correlated with poor outcomes. Besides, expression of SMAD4 showed significantly negative correlation with most immune checkpoint molecules, and the low SMAD4 expression group exhibited significantly high levels of LAG3 (p < 0.05), TGFβ (p < 0.001), and PD-L1 (p < 0.05) compared with the high SMAD4 expression group in the validation cohort. Patients with low SMAD4 expression had significantly higher infiltration of memory B cells (p = 0.002), CD8 + T cells (p < 0.001), regulatory T cells (p = 0.006), M2-type macrophages (p < 0.001), and significantly lower infiltration of naïve B cells (p = 0.002), plasma cells (p < 0.001), resting memory CD4 + T cells (p < 0.001) and eosinophils (p = 0.045). Candidate proteins were mainly involved in antigen processing and presentation, stem cell differentiation, and type I interferon pathways. Supplementary Information The online version contains supplementary material available at 10.1007/s43657-022-00070-1.
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Affiliation(s)
- Aihetaimujiang Anwaier
- Department of Urology, Fudan University Shanghai Cancer Center, No. 270 Dong’an Road, Shanghai, 200032 People’s Republic of China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 20032 People’s Republic of China
| | - Shu-Xuan Zhu
- Department of Endocrine and Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing Medical University, Chongqing, 400016 People’s Republic of China
| | - Xi Tian
- Department of Urology, Fudan University Shanghai Cancer Center, No. 270 Dong’an Road, Shanghai, 200032 People’s Republic of China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 20032 People’s Republic of China
| | - Wen-Hao Xu
- Department of Urology, Fudan University Shanghai Cancer Center, No. 270 Dong’an Road, Shanghai, 200032 People’s Republic of China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 20032 People’s Republic of China
| | - Yue Wang
- Department of Urology, Fudan University Shanghai Cancer Center, No. 270 Dong’an Road, Shanghai, 200032 People’s Republic of China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 20032 People’s Republic of China
| | - Maierdan Palihati
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 20032 People’s Republic of China
| | - Wei-Yue Wang
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 20032 People’s Republic of China
| | - Guo-Hai Shi
- Department of Urology, Fudan University Shanghai Cancer Center, No. 270 Dong’an Road, Shanghai, 200032 People’s Republic of China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 20032 People’s Republic of China
| | - Yuan-Yuan Qu
- Department of Urology, Fudan University Shanghai Cancer Center, No. 270 Dong’an Road, Shanghai, 200032 People’s Republic of China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 20032 People’s Republic of China
| | - Hai-Liang Zhang
- Department of Urology, Fudan University Shanghai Cancer Center, No. 270 Dong’an Road, Shanghai, 200032 People’s Republic of China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 20032 People’s Republic of China
| | - Ding-Wei Ye
- Department of Urology, Fudan University Shanghai Cancer Center, No. 270 Dong’an Road, Shanghai, 200032 People’s Republic of China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 20032 People’s Republic of China
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Jiang J, Tang X, Pu Y, Yang Y, Yang C, Yang F, Tian Y, Li J, Sun H, Zhao S, Chen L. The Value of Multimodality PET/CT Imaging in Detecting Prostate Cancer Biochemical Recurrence. Front Endocrinol (Lausanne) 2022; 13:897513. [PMID: 35712249 PMCID: PMC9197252 DOI: 10.3389/fendo.2022.897513] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 04/26/2022] [Indexed: 11/13/2022] Open
Abstract
Prostate cancer (PCa) induced death is the predominant cause of cancer-related death among men in 48 countries. After radical treatment, biochemical recurrence has become an important factor for prognosis. The early detection and diagnosis of recurrent lesions are very helpful in guiding treatment and improving the prognosis. PET/CT is a promising method for early detection of lesions in patients with biochemical recurrence of prostate cancer. This article reviews the progress of the research on PET/CT in the PCa biochemical recurrence and aims to introduce new technologies and provide more direction for future research.
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Affiliation(s)
- Jie Jiang
- Department of PET/CT Center, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Yunnan, China
| | - Xiaoxia Tang
- Department of Pharmacy, The Second Affiliated Hospital of Kunming Medical University, Yunnan, China
| | - Yongzhu Pu
- Department of PET/CT Center, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Yunnan, China
| | - Yong Yang
- Department of Urology, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Yunnan, China
| | - Conghui Yang
- Department of PET/CT Center, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Yunnan, China
| | - Fake Yang
- Department of PET/CT Center, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Yunnan, China
| | - Yadong Tian
- Department of PET/CT Center, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Yunnan, China
| | - Jindan Li
- Department of PET/CT Center, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Yunnan, China
| | - Hua Sun
- Department of PET/CT Center, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Yunnan, China
- *Correspondence: Long Chen, ; Hua Sun, ; Sheng Zhao,
| | - Sheng Zhao
- Department of PET/CT Center, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Yunnan, China
- *Correspondence: Long Chen, ; Hua Sun, ; Sheng Zhao,
| | - Long Chen
- Department of PET/CT Center, Yunnan Cancer Hospital, The Third Affiliated Hospital of Kunming Medical University, Yunnan, China
- *Correspondence: Long Chen, ; Hua Sun, ; Sheng Zhao,
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Abstract
A type of evolutionarily conserved, noncoding, small, endogenous, single-stranded RNA, miRNAs are widely distributed in eukaryotes, where they participate in various biological processes as critical regulatory molecules. miR-1299 has mainly been investigated in cancers. miR-1299 is a tumor suppressor that regulates the expression of its target genes, activating or inhibiting the transcription of genes regulating biological activities including cell proliferation, migration, survival and programmed cell death. miR-1299 has become a hotspot in research of disease mechanisms and biomarkers; elucidation of the regulatory roles of miR-1299 in tumorigenesis, proliferation, apoptosis, invasion, migration and angiogenesis may provide a new perspective for understanding its biological functions as a tumor suppressor. As key regulatory molecules, microRNAs participate in various biological processes and have become a widespread research focus. This article discusses how the microRNA miR-1299 plays a role as a tumor suppressor and participates in the regulation of tumor pathogenesis. We provide an overview of the role of miR-1299 in tumor diseases and discuss the pathogenesis and regulation mechanisms of miR-1299 in different specific cancers.
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Affiliation(s)
- Deng Kaiyuan
- Department of Laboratory Medicine, The Second Affiliated Hospital of Harbin Medical University, 150086, China
| | - Huang Lijuan
- Department of Laboratory Medicine, The Second Affiliated Hospital of Harbin Medical University, 150086, China
| | - Sun Xueyuan
- Department of Laboratory Medicine, The Second Affiliated Hospital of Harbin Medical University, 150086, China
| | - Zang Yunhui
- Department of Laboratory Medicine, The Second Affiliated Hospital of Harbin Medical University, 150086, China
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Li P, Wang Z, Li S, Wang L. Circ_0006404 Accelerates Prostate Cancer Progression Through Regulating miR-1299/CFL2 Signaling. Onco Targets Ther 2021; 14:83-95. [PMID: 33442268 PMCID: PMC7797328 DOI: 10.2147/ott.s277831] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 11/11/2020] [Indexed: 12/14/2022] Open
Abstract
Background Circular RNAs (circRNAs) have been proven to function as pivotal regulators in cancer occurrence and progression. However, the function of circ_0006404 (circRNA Forkhead box O3 (circFOXO3)in prostate cancer (PCa) is poorly understood. Methods The enrichment of circ_0006404, FOXO3, microRNA-1299 (miR-1299) and cofilin 2 (CFL2) was measured by quantitative real-time polymerase chain reaction (qRT-PCR). The viability, metastasis and proliferation were determined by 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, transwell and colony formation assays, respectively. Flow cytometry was used to assess cell cycle progression and apoptosis. Circ_0006404/miRNAs interactions were explored using Circular RNA Interactome database, while TargetScan software was used for seeking the targets of miR-1299. Dual-luciferase reporter assay, RNA-pull down and RNA immunoprecipitation (RIP) assays were conducted to verify the target interaction between miR-1299 and circ_0006404 or CFL2. CFL2 protein level was analyzed by Western blot assay. Animal experiments were performed to test the role of circ_0006404 in PCa tumor growth in vivo. Results Circ_0006404 level was notably elevated in PCa. Circ_0006404 contributed to the viability, metastasis and proliferation and impaired the apoptosis of PCa cells. Circ_0006404 directly targeted miR-1299, and miR-1299 silencing largely reversed circ_0006404 interference-induced influences in PCa cells. CFL2 directly bound to miR-1299, and miR-1299-induced effects in PCa cells were largely attenuated by CFL2 overexpression. CFL2 was regulated by circ_0006404/miR-1299 axis in PCa cells. Circ_0006404 promoted PCa progression via miR-1299/CFL2 axis in vivo. Conclusion Circ_0006404 accelerated the survival, motility and proliferation while impeded the apoptosis of PCa cells via miR-1299/CFL2 axis. Circ_0006404 might be a stable potential bio-marker for PCa diagnosis and treatment.
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Affiliation(s)
- Peihuan Li
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, People's Republic of China
| | - Zhijie Wang
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, People's Republic of China
| | - Shuai Li
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, People's Republic of China
| | - Liuxing Wang
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, Henan, People's Republic of China
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The microRNA miR-29c-5p inhibits cell proliferation and migration by targeting TMEM98 in head and neck carcinoma. Aging (Albany NY) 2020; 13:769-781. [PMID: 33257597 PMCID: PMC7835064 DOI: 10.18632/aging.202183] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 10/05/2020] [Indexed: 11/25/2022]
Abstract
Head and neck squamous cell carcinoma (HNSCC), which occurs frequently worldwide, is characterized by high risk of metastasis. MicroRNAs (miRNAs) play crucial roles in tumorigenesis and cancer development. In this study, miR-29c-5p was identified using three high throughput microarrays. We measure miR-29c-5p expression in HNSCC tissues and cell lines. To determine the function of miR-29c-5p in HNSCC, we evaluated its effects in vitro on cell proliferation, the cell cycle, apoptosis, and cell migration. We employed a mouse tumor xenograft model to determine the effects of miR-29c-5p on tumors generated by HNSCC cell lines. The miR-29c-5p expression was lower in HNSCC tissues than in normal tissues. Upregulated miR-29c-5p expression in HNSCC cells inhibited migration and arrested cells in the G2/M phase of the cell cycle. Further, upregulated miR-29c-5p expression inhibited the proliferation of HNSCC cells in vivo and in vitro. In addition, transmembrane protein 98 (TMEM98) was identified as a direct target of miR-29c-5p by using a luciferase reporter assay. These findings provide new insights that link the regulation of miR-29c-5p expression to the malignant phenotype of HNSCC and suggest that employing miR-29c-5p may serve as a therapeutic strategy for managing patients with HNSCC.
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Li H, Zhi Y, Ma C, Shen Q, Sun F, Cai C. Circ_0062020 Knockdown Strengthens the Radiosensitivity of Prostate Cancer Cells. Cancer Manag Res 2020; 12:11701-11712. [PMID: 33235500 PMCID: PMC7680143 DOI: 10.2147/cmar.s273826] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 10/15/2020] [Indexed: 12/24/2022] Open
Abstract
Background Prostate cancer (PCa) is a major contributor to reduce the life quality of males. Circular RNAs were frequently reported to be associated with cancers. In the case of radiotherapy to PCa, the role of circ_0062020 was still inconclusive, which was further explored in this study. Methods Quantitative real-time polymerase chain reaction (qRT-PCR) was used to determine the expression of circ_0062020, miR-615-5p and thyroid hormone receptor interactor 13 (TRIP13) in PCa tissues and cells, as well as in normal tissues and cell. Meanwhile, the proliferation of PCa cells was evaluated by clone formation assay and cell counting kit 8 (CCK8) assay. Moreover, the metastasis of PCa cells was assessed by transwell and wound healing assays. Furthermore, the apoptosis of PCa cells was determined by flow cytometry assay. Besides, dual-luciferase reporter system was applied to verify the correlation between miR-615-5p and circ_0062020 or TRIP13, which was predicted by online tool CircRNA interactome or TargetScan. In addition, the protein expression of TRIP13 was measured by Western blot in PCa tissues and cells and normal tissues and cells. Finally, xenograft tumor assay was performed to further confirming the function of circ_0062020 in PCa in vivo. Results Circ_0062020 and TRIP13 were upregulated, while miR-615-5p was downregulated in PCa tissues and cells. Circ_0062020 knockdown or miR-615-5p overexpression inhibited the proliferation and metastasis, and promoted apoptosis, which could be reversed by miR-615-5p inhibitor or pc-TRIP13 in ionizing radiation (IR)-treated PCa cells. As expected, circ_0062020 sponged miR-615-5p to regulate TRIP13 expression in PCa cells. Circ_0062020 knockdown also suppressed PCa tumor growth in vivo. Conclusion Circ_0062020 suppressed the radiosensitivity by miR-615-5p/TRIP13 axis in PCa cells, which might provide insights into the radiotherapy for PCa.
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Affiliation(s)
- Haitao Li
- Department of Urology, Lianyungang Clinical College of Nanjing Medical University/The First People's Hospital of Lianyungang, Lianyungang, Jiangsu, People's Republic of China
| | - Yunlai Zhi
- Department of Urology, Lianyungang Clinical College of Nanjing Medical University/The First People's Hospital of Lianyungang, Lianyungang, Jiangsu, People's Republic of China
| | - Chunyan Ma
- Department of Urology, Lianyungang Clinical College of Nanjing Medical University/The First People's Hospital of Lianyungang, Lianyungang, Jiangsu, People's Republic of China
| | - Qianqian Shen
- Department of Urology, Lianyungang Clinical College of Nanjing Medical University/The First People's Hospital of Lianyungang, Lianyungang, Jiangsu, People's Republic of China
| | - Fanghu Sun
- Department of Urology, Lianyungang Clinical College of Nanjing Medical University/The First People's Hospital of Lianyungang, Lianyungang, Jiangsu, People's Republic of China
| | - Chengkuan Cai
- Department of Urology, Lianyungang Clinical College of Nanjing Medical University/The First People's Hospital of Lianyungang, Lianyungang, Jiangsu, People's Republic of China
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Lounis MA, Péant B, Leclerc-Desaulniers K, Ganguli D, Daneault C, Ruiz M, Zoubeidi A, Mes-Masson AM, Saad F. Modulation of de Novo Lipogenesis Improves Response to Enzalutamide Treatment in Prostate Cancer. Cancers (Basel) 2020; 12:cancers12113339. [PMID: 33187317 PMCID: PMC7698241 DOI: 10.3390/cancers12113339] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 11/05/2020] [Accepted: 11/06/2020] [Indexed: 12/31/2022] Open
Abstract
Simple Summary Prostate cancer cells produce lipids via the activation of a specific pathway called fatty acid synthesis, also known as De novo lipogenesis. This pathway is essential for the survival and growth of most types of cancer cells, including prostate cancer. In our study, we showed that prostate cancer cells activate this lipid synthesis pathway to become more aggressive and develop resistance to commonly used therapeutic agents for advanced prostate cancer such as enzalutamide, an effective and commonly used androgen receptor (AR) targeted agent. Interestingly, by combining enzalutamide with a lipid synthesis pathway inhibitor, we were able to show that growth of prostate cancer tumors was more effectively reduced than with either agent alone. We also showed that this combination led to cell stress and death by changing the lipid content in the cell. These important findings could lead to new therapeutic strategies combining effective AR targeted therapies with lipid synthesis inhibitors for the treatment of advanced prostate cancer. Abstract De novo lipogenesis (DNL) is now considered as a hallmark of cancer. The overexpression of key enzymes of DNL is characteristic of both primary and advanced disease and may play an important role in resistance to therapies. Here, we showed that DNL is highly enhanced in castrate resistant prostate cancer (CRPC) cells compared to hormone sensitive and enzalutamide resistant cells. This observation suggests that this pathway plays an important role in the initiation of aggressive prostate cancer and in the development of enzalutamide resistance. Importantly, here we show that both prostate cancer cells sensitive and resistant to enzalutamide are dependent on DNL to proliferate. We next combined enzalutamide with an inhibitor of Stearoyl CoA Desaturase 1 (SCD1), an important enzyme in DNL, and observed significantly reduced tumor growth caused by the important change in tumoral lipid desaturation. Our findings suggest that the equilibrium between monounsaturated fatty acids and saturated fatty acids is essential in the establishment of the more aggressive prostate cancer phenotype and that the combination therapy induces a disruption of this equilibrium leading to an important decrease of cell proliferation. These findings provide new insights into the role of DNL in the progression of prostate cancer cells. The study also provides the rationale for the use of an inhibitor of SCD1 in combination with enzalutamide to improve response, delay enzalutamide resistance and improve disease free progression.
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Affiliation(s)
- Mohamed Amine Lounis
- Institut du Cancer de Montréal, Montréal, QC H2X 0A9, Canada; (M.A.L.); (B.P.); (K.L.-D.); (A.-M.M.-M.)
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montreal, QC H2X 0A9, Canada
| | - Benjamin Péant
- Institut du Cancer de Montréal, Montréal, QC H2X 0A9, Canada; (M.A.L.); (B.P.); (K.L.-D.); (A.-M.M.-M.)
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montreal, QC H2X 0A9, Canada
| | - Kim Leclerc-Desaulniers
- Institut du Cancer de Montréal, Montréal, QC H2X 0A9, Canada; (M.A.L.); (B.P.); (K.L.-D.); (A.-M.M.-M.)
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montreal, QC H2X 0A9, Canada
| | - Dwaipayan Ganguli
- Vancouver Prostate Centre, Vancouver, BC V6H 3Z6, Canada; (D.G.); (A.Z.)
- Department of Urologic Sciences, Faculty of Medicine, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
| | - Caroline Daneault
- Institut de Cardiologie de Montréal, Montreal, QC H1T 1C8, Canada; (C.D.); (M.R.)
| | - Matthieu Ruiz
- Institut de Cardiologie de Montréal, Montreal, QC H1T 1C8, Canada; (C.D.); (M.R.)
- Département de Nutrition, Université de Montréal (UdeM), Montreal, QC H3C 3J7, Canada
| | - Amina Zoubeidi
- Vancouver Prostate Centre, Vancouver, BC V6H 3Z6, Canada; (D.G.); (A.Z.)
- Department of Urologic Sciences, Faculty of Medicine, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
| | - Anne-Marie Mes-Masson
- Institut du Cancer de Montréal, Montréal, QC H2X 0A9, Canada; (M.A.L.); (B.P.); (K.L.-D.); (A.-M.M.-M.)
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montreal, QC H2X 0A9, Canada
- Département de Médecine, Université de Montréal (UdeM), Montreal, QC H3C 3J7, Canada
| | - Fred Saad
- Institut du Cancer de Montréal, Montréal, QC H2X 0A9, Canada; (M.A.L.); (B.P.); (K.L.-D.); (A.-M.M.-M.)
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montreal, QC H2X 0A9, Canada
- Département de Chirurgie, Université de Montréal (UdeM), Montreal, QC H3C 3J7, Canada
- Correspondence:
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10
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BAYRAMOĞLU Z, ÜNAL B. Prostat Karsinomunun Moleküler Yolakları. MUSTAFA KEMAL ÜNIVERSITESI TIP DERGISI 2020. [DOI: 10.17944/mkutfd.755075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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11
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Nassar ZD, Mah CY, Dehairs J, Burvenich IJG, Irani S, Centenera MM, Helm M, Shrestha RK, Moldovan M, Don AS, Holst J, Scott AM, Horvath LG, Lynn DJ, Selth LA, Hoy AJ, Swinnen JV, Butler LM. Human DECR1 is an androgen-repressed survival factor that regulates PUFA oxidation to protect prostate tumor cells from ferroptosis. eLife 2020; 9:e54166. [PMID: 32686647 PMCID: PMC7386908 DOI: 10.7554/elife.54166] [Citation(s) in RCA: 89] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 07/16/2020] [Indexed: 12/27/2022] Open
Abstract
Fatty acid β-oxidation (FAO) is the main bioenergetic pathway in human prostate cancer (PCa) and a promising novel therapeutic vulnerability. Here we demonstrate therapeutic efficacy of targeting FAO in clinical prostate tumors cultured ex vivo, and identify DECR1, encoding the rate-limiting enzyme for oxidation of polyunsaturated fatty acids (PUFAs), as robustly overexpressed in PCa tissues and associated with shorter relapse-free survival. DECR1 is a negatively-regulated androgen receptor (AR) target gene and, therefore, may promote PCa cell survival and resistance to AR targeting therapeutics. DECR1 knockdown selectively inhibited β-oxidation of PUFAs, inhibited proliferation and migration of PCa cells, including treatment resistant lines, and suppressed tumor cell proliferation and metastasis in mouse xenograft models. Mechanistically, targeting of DECR1 caused cellular accumulation of PUFAs, enhanced mitochondrial oxidative stress and lipid peroxidation, and induced ferroptosis. These findings implicate PUFA oxidation via DECR1 as an unexplored facet of FAO that promotes survival of PCa cells.
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Grants
- Early Career Fellowship,1138648 National Health and Medical Research Council
- Project Grants C16/15/073 and C32/17/052 KU Leuven
- Future Fellowship,FT130101004 Australian Research Council
- Beat Cancer Fellowship,PRF1117 Cancer Council South Australia
- Revolutionary Team Award,MRTA3 Movember Foundation
- Project Grant,1121057 National Health and Medical Research Council
- Project Grant,1100626 National Health and Medical Research Council
- Fellowship,1084178 National Health and Medical Research Council
- Young Investigator Award,YI 1417 Prostate Cancer Foundation of Australia
- Project Grant,1164798 Cure Cancer Australia Foundation
- Group Leader Award EMBL Australia
- Robinson Fellowship University of Sydney
- Project Grants G.0841.15 and G.0C22.19N Fonds Wetenschappelijk Onderzoek
- 1138648 National Health and Medical Research Council
- 1121057 National Health and Medical Research Council
- 1100626 National Health and Medical Research Council
- 1084178 National Health and Medical Research Council
- YI 1417 Prostate Cancer Foundation of Australia
- 1164798 Cure Cancer Australia Foundation
- FT130101004 Australian Research Council
- PRF1117 Cancer Council South Australia
- MRTA3 Movember Foundation
- Freemasons Foundation Centre for Men's Health, University of Adelaide
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Affiliation(s)
- Zeyad D Nassar
- University of Adelaide Medical School and Freemasons Foundation Centre for Men’s Health, University of AdelaideAdelaideAustralia
- South Australian Health and Medical Research InstituteAdelaideAustralia
| | - Chui Yan Mah
- University of Adelaide Medical School and Freemasons Foundation Centre for Men’s Health, University of AdelaideAdelaideAustralia
- South Australian Health and Medical Research InstituteAdelaideAustralia
| | - Jonas Dehairs
- KU Leuven- University of Leuven, LKI- Leuven Cancer Institute, Department of Oncology, Laboratory of Lipid Metabolism and CancerLeuvenBelgium
| | - Ingrid JG Burvenich
- Tumour Targeting Laboratory, Olivia Newton-John Cancer Research Institute, and School of Cancer Medicine, La Trobe UniversityMelbourneAustralia
| | - Swati Irani
- University of Adelaide Medical School and Freemasons Foundation Centre for Men’s Health, University of AdelaideAdelaideAustralia
- South Australian Health and Medical Research InstituteAdelaideAustralia
| | - Margaret M Centenera
- University of Adelaide Medical School and Freemasons Foundation Centre for Men’s Health, University of AdelaideAdelaideAustralia
- South Australian Health and Medical Research InstituteAdelaideAustralia
| | - Madison Helm
- University of Adelaide Medical School and Freemasons Foundation Centre for Men’s Health, University of AdelaideAdelaideAustralia
- South Australian Health and Medical Research InstituteAdelaideAustralia
| | - Raj K Shrestha
- Dame Roma Mitchell Cancer Research Laboratories, University of AdelaideAdelaideAustralia
| | - Max Moldovan
- South Australian Health and Medical Research InstituteAdelaideAustralia
| | - Anthony S Don
- NHMRC Clinical Trials Centre, and Centenary Institute, The University of SydneyCamperdownAustralia
| | - Jeff Holst
- Translational Cancer Metabolism Laboratory, School of Medical Sciences and Prince of Wales Clinical School, UNSW SydneySydneyAustralia
| | - Andrew M Scott
- Tumour Targeting Laboratory, Olivia Newton-John Cancer Research Institute, and School of Cancer Medicine, La Trobe UniversityMelbourneAustralia
| | - Lisa G Horvath
- Garvan Institute of Medical Research, NSW 2010; University of Sydney, NSW 2006; and University of New South WalesDarlinghurstAustralia
| | - David J Lynn
- South Australian Health and Medical Research InstituteAdelaideAustralia
- College of Medicine and Public Health, Flinders UniversityBedford ParkAustralia
| | - Luke A Selth
- University of Adelaide Medical School and Freemasons Foundation Centre for Men’s Health, University of AdelaideAdelaideAustralia
- Dame Roma Mitchell Cancer Research Laboratories, University of AdelaideAdelaideAustralia
- College of Medicine and Public Health, Flinders UniversityBedford ParkAustralia
| | - Andrew J Hoy
- Discipline of Physiology, School of Medical Sciences, Charles Perkins Centre, Faculty of Medicine and Health, The University of SydneyCamperdownAustralia
| | - Johannes V Swinnen
- KU Leuven- University of Leuven, LKI- Leuven Cancer Institute, Department of Oncology, Laboratory of Lipid Metabolism and CancerLeuvenBelgium
| | - Lisa M Butler
- University of Adelaide Medical School and Freemasons Foundation Centre for Men’s Health, University of AdelaideAdelaideAustralia
- South Australian Health and Medical Research InstituteAdelaideAustralia
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12
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Maqbool F, Falconer JR, Moyle PM. Supercritical fluid assembly of albendazole liposomes targeting gastrin-releasing peptide receptor overexpressing tumors. Nanomedicine (Lond) 2020; 15:1315-1330. [PMID: 32484025 DOI: 10.2217/nnm-2020-0048] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Aim: To develop albendazole (ABZ)-loaded bombesin(6-14) (BBN(6-14)) functionalized liposomes for targeting GRPR to enhance delivery to cancer cells. Materials & methods: ABZ-loaded liposomes were formulated using supercritical CO2 technology; functionalized with a GRPR-targeted lipid-anchored BBN(6-14) peptide; and evaluated for effects on cell viability, particle size and targeted cell uptake. Results: BBN(6-14)-coated ABZ liposomes decreased cell viability compared with nonfunctionalized ABZ liposomes. The level of GRPR expression positively correlated with intracellular uptake and decreased cell viability. The reduced cell viability, higher cell uptake and GRPR expression were observed in the order PC-3 > Caco-2 > HepG2 cells. Conclusion: BBN(6-14)-functionalized ABZ liposomes showed enhanced reduction in cell viability compared with nonfunctionalized ABZ liposomes.
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Affiliation(s)
- Faheem Maqbool
- School of Pharmacy, The University of Queensland, Woolloongabba, QLD, 4102, Australia
| | - James R Falconer
- School of Pharmacy, The University of Queensland, Woolloongabba, QLD, 4102, Australia
| | - Peter M Moyle
- School of Pharmacy, The University of Queensland, Woolloongabba, QLD, 4102, Australia
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13
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Xu WH, Wang J, Sheng HY, Qu YY, Wang HK, Zhu Y, Shi GH, Zhang HL, Ye DW. Prognostic implication and functional annotations of Rad50 expression in patients with prostate cancer. J Cell Biochem 2020; 121:3124-3134. [PMID: 31886567 DOI: 10.1002/jcb.29580] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Accepted: 12/09/2019] [Indexed: 12/24/2022]
Abstract
Increasing evidence has shown that Rad50, a protein involved in the DNA damage repair process, significantly correlated with tumor prognosis. This study focused on Rad50 expression in tumor samples and its prognostic value for patients with prostate cancer (PCa). In this study, significantly elevated Rad50 expression in PCa tissues compared to normal tissues (P < .01). Five independent Oncomine databases validated significant differential expression of Rad50 (P < .001). Hence, 80 patients with PCa from Fudan University Shanghai Cancer Center (FUSCC) and 351 patients with PCa with available protein expression data from The Cancer Genome Atlas (TCGA) were included to investigate the survival benefit. Univariate and multivariate Cox regression analyses were performed to investigate the significance of clinicopathological factors on disease-free survival (DFS) and overall survival (OS). Kaplan-Meier analysis indicated that elevated Rad50 protein expression levels significantly correlated with unfavorable DFS (P = .005) in the FUSCC cohort and poorer OS (P = .04) in TCGA cohort. Furthermore, coregulation analysis of proteins indicated that 76 coregulated proteins were associated with Rad50, while 11 most highly involved hub proteins, including Rad50, MRE11A, DUT, POLR3A, MCM3AP, RECQL, PNPT1, RANBP3, DDX1, SNRPB, and UGN, were significantly coregulated in the protein-protein interaction network. Functional enrichment analysis consecutively indicated significant functions and signaling pathways including DNA replication, spliceosome, DNA geometric change, homologous recombination, and G2M checkpoint. This study first reveals that elevated Rad50 expression is significantly associated with aggressive progression and poor survival for patients with PCa. Together, these data suggest that Rad50 may act as an oncoprotein, guide the molecular diagnosis, and may shed light on novel individual therapeutic strategies for progressive PCa patients.
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Affiliation(s)
- Wen-Hao Xu
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Jun Wang
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Hao-Yue Sheng
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yuan-Yuan Qu
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Hong-Kai Wang
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yu Zhu
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Guo-Hai Shi
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Hai-Liang Zhang
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Ding-Wei Ye
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
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14
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Wang J, Xu WH, Wei Y, Zhu Y, Qin XJ, Zhang HL, Ye DW. Elevated MRE11 expression associated with progression and poor outcome in prostate cancer. J Cancer 2019; 10:4333-4340. [PMID: 31413753 PMCID: PMC6691708 DOI: 10.7150/jca.31454] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Accepted: 05/06/2019] [Indexed: 01/14/2023] Open
Abstract
Objective: Growing evidence has proved that MRE11, a protein underpinned to be involved in DNA double-strand break (DSB) repair process, is correlated with cancer outcomes. However, its role in prostate cancer (PCa) remains unclear. This study aimed to investigate the expression of MRE11 in tumor tissue and defining its value in predicting prognosis of PCa patients. Methods: A total of 578 patients from two cohorts were enrolled in this study. Distribution of categorical clinical-pathological data together with levels of MRE11 expression was compared with χ2-test in a contingency table. Immunohistochemical (IHC) staining and evaluation was detected from 78 paired PCa and adjacent normal tissues. Partial likelihood test from univariate and multivariate Cox regression analysis was developed to address the influence of independent factors on disease-free survival (DFS) and overall survival (OS) in two cohorts. The Kaplan-Meier method and log-rank test were performed to assess the survival benefits between discrete levels. Set Enrichment Analysis (GSEA) was performed to select related genes and pathways from The Cancer Genome Atlas (TCGA) database. Results: In the current study, we demonstrated that MRE11 was highly expressed in PCa compared with normal tissues (P=0.011). In addition, in the TCGA cohort, the median DFS in patients with IHC positive and negative MRE11 expression levels was 24.5 and 30.6 months, and median OS was 28.7 and 33.0 months, respectively. In FUSCC cohort, median DFS in patients with IHC positive and negative MRE11 expression was 28.0 and 35.6 months. Furthermore, survival curves suggested that PCa patients with elevated MRE11 expression levels showed poorer OS (P=0.019) in TCGA cohort and poor DFS (P=0.047) in FUSCC cohort. Conclusion: In conclusion, our study reveals that elevated MRE11 expression is significantly correlated with cancer progression and poor survival in PCa patients. These data suggest that MRE11 may act as an oncoprotein and a promising prognostic marker for PCa patients.
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Affiliation(s)
- Jun Wang
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai 200032.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 20032, P.R. China
| | - Wen-Hao Xu
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai 200032.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 20032, P.R. China
| | - Yu Wei
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai 200032.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 20032, P.R. China
| | - Yao Zhu
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai 200032.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 20032, P.R. China
| | - Xiao-Jian Qin
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai 200032.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 20032, P.R. China
| | - Hai-Liang Zhang
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai 200032.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 20032, P.R. China
| | - Ding-Wei Ye
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai 200032.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 20032, P.R. China
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15
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Ebron JS, Shankar E, Singh J, Sikand K, Weyman CM, Gupta S, Lindner DJ, Liu X, Campbell MJ, Shukla GC. MiR-644a Disrupts Oncogenic Transformation and Warburg Effect by Direct Modulation of Multiple Genes of Tumor-Promoting Pathways. Cancer Res 2019; 79:1844-1856. [PMID: 30808676 DOI: 10.1158/0008-5472.can-18-2993] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 12/18/2018] [Accepted: 02/22/2019] [Indexed: 11/16/2022]
Abstract
Castration-resistant prostate cancer (CRPC) is defined by tumor microenvironment heterogeneity affecting intrinsic cellular mechanisms including dysregulated androgen signaling, aerobic glycolysis (Warburg effect), and aberrant activation of transcription factors including androgen receptor (AR) and c-Myc. Using in vitro, in vivo, and animal models, we find a direct correlation between miR-644a downregulation and dysregulation of essential cellular processes. MiR-644a downregulated expression of diverse tumor microenvironment drivers including c-Myc, AR coregulators, and antiapoptosis factors Bcl-xl and Bcl2. Moreover, miR-644a modulates epithelial-mesenchymal transition (EMT) by directly targeting EMT-promoting factors ZEB1, cdk6, and Snail. Finally, miR-644a expression suppresses the Warburg effect by direct targeting of c-Myc, Akt, IGF1R, and GAPDH expression. RNA sequencing analysis revealed an analogous downregulation of these factors in animal tumor xenografts. These data demonstrate miR-644a mediated fine-tuning of oncogenesis, stimulating pathways and resultant potentiation of enzalutamide therapy in CRPC patients. SIGNIFICANCE: This study demonstrates that miR-644a therapeutically influences the CRPC tumor microenvironment by suppressing androgen signaling and additional genes involved in metabolism, proliferation, Warburg effect, and EMT, to potentiate the enzalutamide therapy.Graphical Abstract: http://cancerres.aacrjournals.org/content/canres/79/8/1844/F1.large.jpg.
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Affiliation(s)
- Jey S Ebron
- Department of Biological Sciences, Cleveland State University, Cleveland, Ohio.,Center for Gene Regulation in Health and Disease, Cleveland State University, Cleveland, Ohio
| | - Eswar Shankar
- Department of Urology, Case Western Reserve University and University Hospitals Case Medical Center, Cleveland, Ohio
| | - Jagjit Singh
- Department of Biological Sciences, Cleveland State University, Cleveland, Ohio.,Center for Gene Regulation in Health and Disease, Cleveland State University, Cleveland, Ohio
| | - Kavleen Sikand
- Department of Biochemistry, Panjab University, Chandigarh, India
| | - Crystal M Weyman
- Department of Biological Sciences, Cleveland State University, Cleveland, Ohio.,Center for Gene Regulation in Health and Disease, Cleveland State University, Cleveland, Ohio
| | - Sanjay Gupta
- Department of Urology, Case Western Reserve University and University Hospitals Case Medical Center, Cleveland, Ohio
| | - Daniel J Lindner
- Translational Hematology and Oncology Research, Taussig Cancer Center, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio
| | - Xiaoqi Liu
- Department of Toxicology and Cancer Biology, University of Kentucky, Lexington, Kentucky
| | - Moray J Campbell
- Pharmaceutics and Pharmaceutical Chemistry, College of Pharmacy, The Ohio State University, Columbus, Ohio
| | - Girish C Shukla
- Department of Biological Sciences, Cleveland State University, Cleveland, Ohio. .,Center for Gene Regulation in Health and Disease, Cleveland State University, Cleveland, Ohio.,Department of Cancer Biology, Learner Research institute, Cleveland Clinic, Cleveland, Ohio
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16
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Vanacore D, Boccellino M, Rossetti S, Cavaliere C, D'Aniello C, Di Franco R, Romano FJ, Montanari M, La Mantia E, Piscitelli R, Nocerino F, Cappuccio F, Grimaldi G, Izzo A, Castaldo L, Pepe MF, Malzone MG, Iovane G, Ametrano G, Stiuso P, Quagliuolo L, Barberio D, Perdonà S, Muto P, Montella M, Maiolino P, Veneziani BM, Botti G, Caraglia M, Facchini G. Micrornas in prostate cancer: an overview. Oncotarget 2018; 8:50240-50251. [PMID: 28445135 PMCID: PMC5564846 DOI: 10.18632/oncotarget.16933] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Accepted: 03/25/2017] [Indexed: 12/11/2022] Open
Abstract
Prostate cancer is the second highest cause of cancer mortality after lung tumours. In USA it affects about 2.8 million men and the incidence increases with age in many countries. Therefore, early diagnosis is a very important step for patient clinical evaluation and for a selective and efficient therapy. The study of miRNAs' functions and molecular mechanisms has brought new knowledge in biological processes of cancer. In prostate cancer there is a deregulation of several miRNAs that may function as tumour suppressors or oncogenes. The aim of this review is to analyze the progress made to our understanding of the role of miRNA dysregulation in prostate cancer tumourigenesis.
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Affiliation(s)
- Daniela Vanacore
- Progetto ONCONET2.0, Linea progettuale 14 per l'implementazione della Prevenzione e Diagnosi Precoce del Tumore alla Prostata e Testicolo, Regione Campania, Italy.,Department of Biochemistry, Biophysics and General Pathology, University of Campania "L. Vanvitelli" Naples, Naples, Italy
| | - Mariarosaria Boccellino
- Department of Biochemistry, Biophysics and General Pathology, University of Campania "L. Vanvitelli" Naples, Naples, Italy
| | - Sabrina Rossetti
- Progetto ONCONET2.0, Linea progettuale 14 per l'implementazione della Prevenzione e Diagnosi Precoce del Tumore alla Prostata e Testicolo, Regione Campania, Italy.,Division of Medical Oncology, Department of Uro-Gynaecological Oncology, Istituto Nazionale Tumori 'Fondazione G. Pascale', IRCCS, Naples, Italy
| | - Carla Cavaliere
- Progetto ONCONET2.0, Linea progettuale 14 per l'implementazione della Prevenzione e Diagnosi Precoce del Tumore alla Prostata e Testicolo, Regione Campania, Italy.,Department of Onco-Ematology Medical Oncology, S.G. Moscati Hospital of Taranto, Taranto, Italy
| | - Carmine D'Aniello
- Progetto ONCONET2.0, Linea progettuale 14 per l'implementazione della Prevenzione e Diagnosi Precoce del Tumore alla Prostata e Testicolo, Regione Campania, Italy.,Division of Medical Oncology, A.O.R.N. dei COLLI "Ospedali Monaldi-Cotugno-CTO", Napoli, Italy
| | - Rossella Di Franco
- Progetto ONCONET2.0, Linea progettuale 14 per l'implementazione della Prevenzione e Diagnosi Precoce del Tumore alla Prostata e Testicolo, Regione Campania, Italy.,Radiation Oncology, Istituto Nazionale per lo Studio e la Cura dei Tumori 'Fondazione Giovanni Pascale', IRCCS, Napoli, Italy
| | - Francesco Jacopo Romano
- Progetto ONCONET2.0, Linea progettuale 14 per l'implementazione della Prevenzione e Diagnosi Precoce del Tumore alla Prostata e Testicolo, Regione Campania, Italy
| | - Micaela Montanari
- Progetto ONCONET2.0, Linea progettuale 14 per l'implementazione della Prevenzione e Diagnosi Precoce del Tumore alla Prostata e Testicolo, Regione Campania, Italy.,Department of Molecular Medicine and Medical Biotechnologies, University of Naples "Federico II", Naples, Italy
| | - Elvira La Mantia
- Progetto ONCONET2.0, Linea progettuale 14 per l'implementazione della Prevenzione e Diagnosi Precoce del Tumore alla Prostata e Testicolo, Regione Campania, Italy.,Pathology Unit, Istituto Nazionale Tumori "Fondazione G. Pascale", IRCCS, Naples, Italy
| | - Raffaele Piscitelli
- Progetto ONCONET2.0, Linea progettuale 14 per l'implementazione della Prevenzione e Diagnosi Precoce del Tumore alla Prostata e Testicolo, Regione Campania, Italy.,Pharmacy Unit, Istituto Nazionale Tumori, Istituto Nazionale Tumori-Fondazione G. Pascale, Naples, Italy
| | - Flavia Nocerino
- Progetto ONCONET2.0, Linea progettuale 14 per l'implementazione della Prevenzione e Diagnosi Precoce del Tumore alla Prostata e Testicolo, Regione Campania, Italy.,Epidemiology Unit, Istituto Nazionale per lo Studio e la Cura dei Tumori 'Fondazione Giovanni Pascale', IRCCS, Napoli, Italy
| | - Francesca Cappuccio
- Progetto ONCONET2.0, Linea progettuale 14 per l'implementazione della Prevenzione e Diagnosi Precoce del Tumore alla Prostata e Testicolo, Regione Campania, Italy.,Psicology Unit, Istituto Nazionale per lo Studio e la Cura dei Tumori 'Fondazione Giovanni Pascale', IRCCS, Napoli, Italy
| | - Giovanni Grimaldi
- Progetto ONCONET2.0, Linea progettuale 14 per l'implementazione della Prevenzione e Diagnosi Precoce del Tumore alla Prostata e Testicolo, Regione Campania, Italy.,Division of Urology, Department of Uro-Gynaecological Oncology, Istituto Nazionale Tumori 'Fondazione G. Pascale', IRCCS, Naples, Italy
| | - Alessandro Izzo
- Progetto ONCONET2.0, Linea progettuale 14 per l'implementazione della Prevenzione e Diagnosi Precoce del Tumore alla Prostata e Testicolo, Regione Campania, Italy.,Division of Urology, Department of Uro-Gynaecological Oncology, Istituto Nazionale Tumori 'Fondazione G. Pascale', IRCCS, Naples, Italy
| | - Luigi Castaldo
- Progetto ONCONET2.0, Linea progettuale 14 per l'implementazione della Prevenzione e Diagnosi Precoce del Tumore alla Prostata e Testicolo, Regione Campania, Italy.,Division of Urology, Department of Uro-Gynaecological Oncology, Istituto Nazionale Tumori 'Fondazione G. Pascale', IRCCS, Naples, Italy
| | - Maria Filomena Pepe
- Progetto ONCONET2.0, Linea progettuale 14 per l'implementazione della Prevenzione e Diagnosi Precoce del Tumore alla Prostata e Testicolo, Regione Campania, Italy.,Pathology Unit, Istituto Nazionale Tumori "Fondazione G. Pascale", IRCCS, Naples, Italy
| | - Maria Gabriella Malzone
- Progetto ONCONET2.0, Linea progettuale 14 per l'implementazione della Prevenzione e Diagnosi Precoce del Tumore alla Prostata e Testicolo, Regione Campania, Italy.,Pathology Unit, Istituto Nazionale Tumori "Fondazione G. Pascale", IRCCS, Naples, Italy
| | - Gelsomina Iovane
- Division of Medical Oncology, Department of Uro-Gynaecological Oncology, Istituto Nazionale Tumori 'Fondazione G. Pascale', IRCCS, Naples, Italy
| | - Gianluca Ametrano
- Progetto ONCONET2.0, Linea progettuale 14 per l'implementazione della Prevenzione e Diagnosi Precoce del Tumore alla Prostata e Testicolo, Regione Campania, Italy.,Radiation Oncology, Istituto Nazionale per lo Studio e la Cura dei Tumori 'Fondazione Giovanni Pascale', IRCCS, Napoli, Italy
| | - Paola Stiuso
- Department of Biochemistry, Biophysics and General Pathology, University of Campania "L. Vanvitelli" Naples, Naples, Italy
| | - Lucio Quagliuolo
- Department of Biochemistry, Biophysics and General Pathology, University of Campania "L. Vanvitelli" Naples, Naples, Italy
| | - Daniela Barberio
- Progetto ONCONET2.0, Linea progettuale 14 per l'implementazione della Prevenzione e Diagnosi Precoce del Tumore alla Prostata e Testicolo, Regione Campania, Italy.,Psicology Unit, Istituto Nazionale per lo Studio e la Cura dei Tumori 'Fondazione Giovanni Pascale', IRCCS, Napoli, Italy
| | - Sisto Perdonà
- Division of Urology, Department of Uro-Gynaecological Oncology, Istituto Nazionale Tumori 'Fondazione G. Pascale', IRCCS, Naples, Italy
| | - Paolo Muto
- Radiation Oncology, Istituto Nazionale per lo Studio e la Cura dei Tumori 'Fondazione Giovanni Pascale', IRCCS, Napoli, Italy
| | - Maurizio Montella
- Epidemiology Unit, Istituto Nazionale per lo Studio e la Cura dei Tumori 'Fondazione Giovanni Pascale', IRCCS, Napoli, Italy
| | - Piera Maiolino
- Pharmacy Unit, Istituto Nazionale Tumori, Istituto Nazionale Tumori-Fondazione G. Pascale, Naples, Italy
| | - Bianca Maria Veneziani
- Department of Molecular Medicine and Medical Biotechnologies, University of Naples "Federico II", Naples, Italy
| | - Gerardo Botti
- Pathology Unit, Istituto Nazionale Tumori "Fondazione G. Pascale", IRCCS, Naples, Italy.,Scientific Directorate, Istituto Nazionale Tumori 'Fondazione G. Pascale', IRCCS, Naples, Italy
| | - Michele Caraglia
- Department of Biochemistry, Biophysics and General Pathology, University of Campania "L. Vanvitelli" Naples, Naples, Italy
| | - Gaetano Facchini
- Progetto ONCONET2.0, Linea progettuale 14 per l'implementazione della Prevenzione e Diagnosi Precoce del Tumore alla Prostata e Testicolo, Regione Campania, Italy.,Division of Medical Oncology, Department of Uro-Gynaecological Oncology, Istituto Nazionale Tumori 'Fondazione G. Pascale', IRCCS, Naples, Italy
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17
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Novel tumor suppressor microRNA at frequently deleted chromosomal region 8p21 regulates epidermal growth factor receptor in prostate cancer. Oncotarget 2018; 7:70388-70403. [PMID: 27611943 PMCID: PMC5342560 DOI: 10.18632/oncotarget.11865] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Accepted: 08/13/2016] [Indexed: 12/22/2022] Open
Abstract
Genomic loss of chromosome (chr) 8p21 region, containing prostate-specific NKX3.1 gene, is a frequent alteration of the prostate cancer (PCa) oncogenome. We propose a novel, paradigm shifting hypothesis that this frequently deleted locus is also associated with a cluster of microRNA genes- miR-3622a/b- that are lost in PCa and play an important mechanistic role in progression and metastasis. In this study, we demonstrate the role of miR-3622b in prostate cancer. Expression analyses in a cohort of PCa clinical specimens and cell lines show that miR-3622b expression is frequently lost in prostate cancer. Low miR-3622b expression was found to be associated with tumor progression and poor biochemical recurrence-free survival. Further, our analyses suggest that miR-3622b expression is a promising prostate cancer diagnostic biomarker that exhibits 100% specificity and 66% sensitivity. Restoration of miR-3622b expression in PCa cell lines led to reduced cellular viability, proliferation, invasiveness, migration and increased apoptosis. miR-3622b overexpression in vivo induced regression of established prostate tumor xenografts pointing to its therapeutic potential. Further, we found that miR-3622b directly represses Epidermal Growth Factor Receptor (EGFR). In conclusion, our study suggests that miR-3622b plays a tumor suppressive role and is frequently downregulated in prostate cancer, leading to EGFR upregulation. Importantly, miR-3622b has associated diagnostic, prognostic and therapeutic potential. Considering the association of chr8p21 loss with poor prognosis, our findings are highly significant and support a novel concept that associates a long standing observation of frequent loss of a chromosomal region with a novel miRNA in prostate cancer.
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18
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Sekhon K, Bucay N, Majid S, Dahiya R, Saini S. MicroRNAs and epithelial-mesenchymal transition in prostate cancer. Oncotarget 2018; 7:67597-67611. [PMID: 27588490 PMCID: PMC5341899 DOI: 10.18632/oncotarget.11708] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Accepted: 08/25/2016] [Indexed: 02/07/2023] Open
Abstract
Prostate cancer (PCa) is a leading cause of male cancer-related deaths. A significant fraction of prostate tumors are very aggressive, often metastasizing to bone, causing significant morbidity and mortality. Also, PCa is associated with high rates of recurrence, often attributed to the existence of cancer stem cells. Epithelial-mesenchymal transition (EMT), a process characterized by decreased expression of epithelial genes and increased expression of mesenchymal genes, plays a critical role in tumor invasion, metastasis and recurrence. In PCa, EMT has been implicated particularly in the context of metastatic disease and microRNAs have emerged as critical post-transcriptional regulators of PCa EMT. In this review, we summarize the role of miRNAs in PCa EMT that play a role in progression, metastasis and recurrence. Studies till date suggest that microRNAs mediate efficient and reversible control of PCa EMT via multiple mechanisms including either by (i) directly repressing single or multiple EMT-TFs or regulating cytoskeletal components (epithelial/mesenchymal genes) or (ii) regulating key signaling pathways involved in EMT. Oncogenic microRNAs often act as EMT promoters by repressing epithelial characteristics and tumor suppressive miRNAs act by inhibiting mesenchymal progression. Further, EMT is mechanistically linked to stem cell signatures in PCa and several miRNAs implicated in EMT have been reported to influence PCa stem cells. Loss of EMT-inhibiting miRNAs and/or gain of EMT promoting miRNAs lead to induction of PCa EMT, leading to tumor progression, metastasis and recurrence. Restoring expression of tumor suppressive miRNAs and inhibiting oncogenic miRNAs represent potential therapeutic opportunities to prevent disease metastasis and recurrence.
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Affiliation(s)
- Kirandeep Sekhon
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, CA, USA
| | - Nathan Bucay
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, CA, USA
| | - Shahana Majid
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, CA, USA
| | - Rajvir Dahiya
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, CA, USA
| | - Sharanjot Saini
- Department of Urology, Veterans Affairs Medical Center, San Francisco and University of California San Francisco, CA, USA
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19
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Wei X, Zeng W, Xie K, Diao P, Tang P. Potential use of chymotrypsin-like proteasomal activity as a biomarker for prostate cancer. Oncol Lett 2018; 15:5149-5154. [PMID: 29552150 DOI: 10.3892/ol.2018.7936] [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: 09/30/2016] [Accepted: 12/08/2017] [Indexed: 02/03/2023] Open
Abstract
Although it is the most widely used biomarker for prostate cancer, the use of prostate specific antigen (PSA) is controversial due to its limitations in specificity and sensitivity. The proteasome is a complex associated with cell proliferation and apoptosis, and the abnormity of these processes may lead to tumor occurrence. Previous studies have reported that proteasomal activity is associated with cancer progression and can be used in risk stratification. The purpose of the present study was thus to investigate the feasibility of proteasome activity as a biomarker for prostate cancer. Proteasome activity in vitro and in vivo was detected, along with the expression of the substrate proteins NF-κB inhibitor-α (IκB-α), Bcl-2-associated X (Bax) and p27. Chymotrypsin-like proteasomal activity was elevated by 70% in vitro and 23% in vivo, and the expression levels of the proteasome substrate proteins IκB-α, Bax and p27 were decreased in prostate cancer cells and prostate tumor xenografts compared with normal mouse prostate tissue. In conclusion, proteasomal chymotrypsin-like activity maybe a potential biomarker for prostate cancer, and may be suitable to supplement PSA in clinical application for prostate cancer diagnosis.
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Affiliation(s)
- Xinghua Wei
- Department of Urology, The First Affiliated Hospital, Jinan University, Guangzhou, Guangdong 510632, P.R. China.,Department of Urology, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, Guangdong 510180, P.R. China
| | - Weiwei Zeng
- Department of Urology, The First Affiliated Hospital, Jinan University, Guangzhou, Guangdong 510632, P.R. China.,Department of Urology, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, Guangdong 510180, P.R. China
| | - Keji Xie
- Department of Urology, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, Guangdong 510180, P.R. China
| | - Pengfei Diao
- Department of Urology, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, Guangdong 510180, P.R. China
| | - Ping Tang
- Department of Urology, The First Affiliated Hospital, Jinan University, Guangzhou, Guangdong 510632, P.R. China.,Department of Urology, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, Guangdong 510180, P.R. China
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20
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Enzalutamide inhibits testosterone-induced growth of human prostate cancer xenografts in zebrafish and can induce bradycardia. Sci Rep 2017; 7:14698. [PMID: 29089623 PMCID: PMC5665934 DOI: 10.1038/s41598-017-14413-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Accepted: 10/11/2017] [Indexed: 12/20/2022] Open
Abstract
The zebrafish has become a popular human tumour xenograft model, particularly for solid tumours including prostate cancer (PCa). To date PCa xenotransplantation studies in zebrafish have not been performed in the presence of testosterone, even when employing androgen-dependent cell models, such as the LNCaP cell line. Thus, with the goal of more faithfully modelling the hormonal milieu in which PCa develops in humans, we sought to determine the effects of exogenous testosterone on the growth of LNCaP, or androgen-independent C4-2 cells xenografted into zebrafish embryos. Testosterone significantly increased engrafted LNCaP proliferation compared to control xenografts, which could be inhibited by co-administration of the anti-androgen receptor drug, enzalutamide. By contrast, C4-2 cell growth was not affected by either testosterone or enzalutamide. Enzalutamide also induced bradycardia and death in zebrafish embryos in a dose-dependent manner and strongly synergized with the potassium-channel blocking agent, terfenadine, known to induce long QT syndrome and cardiac arrhythmia. Together, these data not only indicate that testosterone administration should be considered in all PCa xenograft studies in zebrafish but also highlights the unique opportunity of this preclinical platform to simultaneously evaluate efficacy and toxicity of novel therapies and/or protective agents towards developing safer and more effective PCa treatments.
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21
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Butler LM, Centenera MM, Swinnen JV. Androgen control of lipid metabolism in prostate cancer: novel insights and future applications. Endocr Relat Cancer 2016; 23:R219-27. [PMID: 27130044 DOI: 10.1530/erc-15-0556] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Accepted: 04/28/2016] [Indexed: 12/13/2022]
Abstract
One of the most typical hallmarks of prostate cancer cells is their exquisite dependence on androgens, which is the basis of the widely applied androgen deprivation therapy. Among the variety of key cellular processes and functions that are regulated by androgens, lipid metabolism stands out by its complex regulation and its many intricate links with cancer cell biology. Here, we review our current knowledge on the links between androgens and lipid metabolism in prostate cancer, and highlight recent developments and insights into the links between key oncogenic stimuli and altered lipid synthesis and/or uptake that may hold significant potential for biomarker development and provide new vulnerabilities for therapeutic intervention.
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Affiliation(s)
- Lisa M Butler
- School of MedicineUniversity of Adelaide, South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
| | - Margaret M Centenera
- School of MedicineUniversity of Adelaide, South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
| | - Johannes V Swinnen
- Laboratory of Lipid Metabolism and CancerDepartment of Oncology, LKI - Leuven Cancer Institute, KU Leuven - University of Leuven, Leuven, Belgium
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22
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Abstract
BACKGROUND The use of biomarkers for prostate cancer screening, diagnosis and prognosis has the potential to improve the clinical management of the patients. Owing to inherent limitations of the biomarker prostate-specific antigen (PSA), intensive efforts are currently directed towards a search for alternative prostate cancer biomarkers, particularly those that can predict disease aggressiveness and drive better treatment decisions. METHODS A literature search of Medline articles focused on recent and emerging advances in prostate cancer biomarkers was performed. The most promising biomarkers that have the potential to meet the unmet clinical needs in prostate cancer patient management and/or that are clinically implemented were selected. CONCLUSIONS With the advent of advanced genomic and proteomic technologies, we have in recent years seen an enormous spurt in prostate cancer biomarker research with several promising alternative biomarkers being discovered that show an improved sensitivity and specificity over PSA. The new generation of biomarkers can be tested via serum, urine, or tissue-based assays that have either received regulatory approval by the US Food and Drug Administration or are available as Clinical Laboratory Improvement Amendments-based laboratory developed tests. Additional emerging novel biomarkers for prostate cancer, including circulating tumor cells, microRNAs and exosomes, are still in their infancy. Together, these biomarkers provide actionable guidance for prostate cancer risk assessment, and are expected to lead to an era of personalized medicine.
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Affiliation(s)
- Sharanjot Saini
- Department of Urology, Urology Research (112J), Veterans Affairs Medical Center, 4150 Clement Street, San Francisco, CA, 94121, USA.
- University of California San Francisco, San Francisco, CA, USA.
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23
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Li S, Zhu Y, Ma C, Qiu Z, Zhang X, Kang Z, Wu Z, Wang H, Xu X, Zhang H, Ren G, Tang J, Li X, Guan M. Downregulation of EphA5 by promoter methylation in human prostate cancer. BMC Cancer 2015; 15:18. [PMID: 25609195 PMCID: PMC4307617 DOI: 10.1186/s12885-015-1025-3] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Accepted: 01/14/2015] [Indexed: 11/30/2022] Open
Abstract
Background EphA5 is a member of the Eph/ephrin family and plays a critical role in the regulation of carcinogenesis. A significant reduction of EphA5 transcripts in high-grade prostate cancer tissue was shown using a transcriptomic analysis, compared to the low-grade prostate cancer tissue. As less is known about the mechanism of EphA5 downregulation and the function of EphA5, here we investigated the expression and an epigenetic change of EphA5 in prostate cancer and determined if these findings were correlated with clinicopathologic characteristics of prostate cancer. Methods Seven prostate cell lines (RWPE-1, LNCap, LNCap-LN3, CWR22rv-1, PC-3, PC-3M-LN4, and DU145), thirty-nine BPH, twenty-two primary prostate carcinomas, twenty-three paired noncancerous and cancerous prostate tissues were examined via qRT-PCR, methylation-specific PCR, bisulfite sequencing, immunohistochemistry and western blotting. The role of EphA5 in prostate cancer cell migration and invasion was examined by wound healing and transwell assay. Results Downregulation or loss of EphA5 mRNA or protein expression was detected in 28 of 45 (62.2%) prostate carcinomas, 2 of 39 (5.1%) hyperplasias, and all 6 prostate cancer cell lines. Methylation of the EphA5 promoter region was present in 32 of 45 (71.1%) carcinoma samples, 3 of 39 (7.7%) hyperplasias, and the 6 prostate cancer cell lines. Among 23 paired prostate carcinoma tissues, 16 tumor samples exhibited the hypermethylation of EphA5, and 15 of these 16 specimens (93.8%) shown the downregulation of EphA5 expression than that of their respectively matched noncancerous samples. Immunostaining analysis demonstrated that the EphA5 protein was absent or down-regulated in 10 of 13 (76.9%) available carcinoma samples, and 8 of these 10 samples (80.0%) exhibited hypermethylation. The frequency of EphA5 methylation was higher in cancer patients with an elevated Gleason score or T3-T4 staging. Following the treatment of 6 prostate cancer cell lines with 5-aza-2′-deoxycytidine, the levels of EphA5 mRNA were significantly increased. Prostate cancer cells invasion and migration were significantly suppressed by ectopic expression of EphA5 in vitro. Conclusion Our study provides evidence that EphA5 is a potential target for epigenetic silencing in primary prostate cancer and is a potentially valuable prognosis predictor and thereapeutic marker for prostate cancer. Electronic supplementary material The online version of this article (doi:10.1186/s12885-015-1025-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Shibao Li
- Department of Laboratory Medicine, Huashan Hospital, Shanghai Medical School, Fudan University, 12 Central Urumqi Road, Shanghai, 200040, China.
| | - Yingfeng Zhu
- Department of Pathology, Huashan Hospital North, Fudan University, Shanghai, China.
| | - Chunguang Ma
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai, China.
| | - Zhenhua Qiu
- Department of Laboratory Medicine, The people's hospital of GaoZhou, GaoZhou, China.
| | - Xinju Zhang
- Central Laboratory, Huashan Hospital, Shanghai Medical School, Fudan University, Shanghai, China.
| | - Zhihua Kang
- Department of Laboratory Medicine, Huashan Hospital, Shanghai Medical School, Fudan University, 12 Central Urumqi Road, Shanghai, 200040, China. .,Central Laboratory, Huashan Hospital, Shanghai Medical School, Fudan University, Shanghai, China.
| | - Zhiyuan Wu
- Department of Laboratory Medicine, Huashan Hospital, Shanghai Medical School, Fudan University, 12 Central Urumqi Road, Shanghai, 200040, China. .,Central Laboratory, Huashan Hospital, Shanghai Medical School, Fudan University, Shanghai, China.
| | - Hua Wang
- Department of Laboratory Medicine, Huashan Hospital, Shanghai Medical School, Fudan University, 12 Central Urumqi Road, Shanghai, 200040, China. .,Central Laboratory, Huashan Hospital, Shanghai Medical School, Fudan University, Shanghai, China.
| | - Xiao Xu
- Central Laboratory, Huashan Hospital, Shanghai Medical School, Fudan University, Shanghai, China.
| | - Hu Zhang
- Department of Urology, Huashan Hospital, Fudan University, Shanghai, China.
| | - Guoqiang Ren
- Department of Pathology, Huashan Hospital North, Fudan University, Shanghai, China.
| | - Jianmin Tang
- Department of Pathology, Huashan Hospital North, Fudan University, Shanghai, China.
| | - Xiangyu Li
- Department of Laboratory Medicine, Huashan Hospital, Shanghai Medical School, Fudan University, 12 Central Urumqi Road, Shanghai, 200040, China.
| | - Ming Guan
- Department of Laboratory Medicine, Huashan Hospital, Shanghai Medical School, Fudan University, 12 Central Urumqi Road, Shanghai, 200040, China. .,Central Laboratory, Huashan Hospital, Shanghai Medical School, Fudan University, Shanghai, China.
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24
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Qiu JX, Zhou ZW, He ZX, Zhao RJ, Zhang X, Yang L, Zhou SF, Mao ZF. Plumbagin elicits differential proteomic responses mainly involving cell cycle, apoptosis, autophagy, and epithelial-to-mesenchymal transition pathways in human prostate cancer PC-3 and DU145 cells. DRUG DESIGN DEVELOPMENT AND THERAPY 2015; 9:349-417. [PMID: 25609920 PMCID: PMC4294653 DOI: 10.2147/dddt.s71677] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Plumbagin (PLB) has exhibited a potent anticancer effect in preclinical studies, but the molecular interactome remains elusive. This study aimed to compare the quantitative proteomic responses to PLB treatment in human prostate cancer PC-3 and DU145 cells using the approach of stable-isotope labeling by amino acids in cell culture (SILAC). The data were finally validated using Western blot assay. First, the bioinformatic analysis predicted that PLB could interact with 78 proteins that were involved in cell proliferation and apoptosis, immunity, and signal transduction. Our quantitative proteomic study using SILAC revealed that there were at least 1,225 and 267 proteins interacting with PLB and there were 341 and 107 signaling pathways and cellular functions potentially regulated by PLB in PC-3 and DU145 cells, respectively. These proteins and pathways played a critical role in the regulation of cell cycle, apoptosis, autophagy, epithelial to mesenchymal transition (EMT), and reactive oxygen species generation. The proteomic study showed substantial differences in response to PLB treatment between PC-3 and DU145 cells. PLB treatment significantly modulated the expression of critical proteins that regulate cell cycle, apoptosis, and EMT signaling pathways in PC-3 cells but not in DU145 cells. Consistently, our Western blotting analysis validated the bioinformatic and proteomic data and confirmed the modulating effects of PLB on important proteins that regulated cell cycle, apoptosis, autophagy, and EMT in PC-3 and DU145 cells. The data from the Western blot assay could not display significant differences between PC-3 and DU145 cells. These findings indicate that PLB elicits different proteomic responses in PC-3 and DU145 cells involving proteins and pathways that regulate cell cycle, apoptosis, autophagy, reactive oxygen species production, and antioxidation/oxidation homeostasis. This is the first systematic study with integrated computational, proteomic, and functional analyses revealing the networks of signaling pathways and differential proteomic responses to PLB treatment in prostate cancer cells. Quantitative proteomic analysis using SILAC represents an efficient and highly sensitive approach to identify the target networks of anticancer drugs like PLB, and the data may be used to discriminate the molecular and clinical subtypes, and to identify new therapeutic targets and biomarkers, for prostate cancer. Further studies are warranted to explore the potential of quantitative proteomic analysis in the identification of new targets and biomarkers for prostate cancer.
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Affiliation(s)
- Jia-Xuan Qiu
- School of Public Health, Wuhan University, Wuhan, Hubei, People's Republic of China ; Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, People's Republic of China
| | - Zhi-Wei Zhou
- Department of Pharmaceutical Sciences, College of Pharmacy, University of South Florida, Tampa, FL, USA ; Guizhou Provincial Key Laboratory for Regenerative Medicine, Stem Cell and Tissue Engineering Research Center and Sino-US Joint Laboratory for Medical Sciences, Guiyang Medical University, Guiyang, Guizhou, People's Republic of China
| | - Zhi-Xu He
- Guizhou Provincial Key Laboratory for Regenerative Medicine, Stem Cell and Tissue Engineering Research Center and Sino-US Joint Laboratory for Medical Sciences, Guiyang Medical University, Guiyang, Guizhou, People's Republic of China
| | - Ruan Jin Zhao
- Center for Traditional Chinese Medicine, Sarasota, FL, USA
| | - Xueji Zhang
- Research Center for Bioengineering and Sensing Technology, University of Science and Technology Beijing, Beijing, People's Republic of China
| | - Lun Yang
- Bio-X Institutes, Key Laboratory for the Genetics of Development and Neuropsychiatric Disorders (Ministry of Education), Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - Shu-Feng Zhou
- Department of Pharmaceutical Sciences, College of Pharmacy, University of South Florida, Tampa, FL, USA ; Guizhou Provincial Key Laboratory for Regenerative Medicine, Stem Cell and Tissue Engineering Research Center and Sino-US Joint Laboratory for Medical Sciences, Guiyang Medical University, Guiyang, Guizhou, People's Republic of China
| | - Zong-Fu Mao
- School of Public Health, Wuhan University, Wuhan, Hubei, People's Republic of China
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25
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Establishment and characterization of a bovine rectal myxoma cell line. Tissue Cell 2014; 47:49-54. [PMID: 25441618 DOI: 10.1016/j.tice.2014.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Revised: 11/03/2014] [Accepted: 11/06/2014] [Indexed: 11/22/2022]
Abstract
A new bovine cell line was developed from tumor biopsy material of rectum obtained from clinical case of 7 years old cattle with tumor mass obliterating the rectal opening. Histopathology of tumor revealed scattered stellate cells arranged singly or in clusters in loose mucinous ground substance, simulating myxoma. The cells obtained from tumor mass have been cultured for more than 36 months in DMEM supplemented with 10% fetal bovine serum (FBS). The population doubling time of this cell line was about 20.64 h. The cytogenetic analysis revealed several chromosomal abnormalities with bizarre karyotype. The origin of the cell line was confirmed by PCR amplification of 1086 bp fragment of 16s rRNA using bovine species specific primers. The new cell line would act as in vitro model to study many aspect of cancer biology such as tumor development, differentiation and therapeutics regimen to combat cancer.
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26
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Abstract
One of the key mechanisms by which prostate cancer cells evade hormone therapy is through intratumor testosterone production. New evidence points toward androstenedione as a potential precursor of intratumor androgen production and furthers nomination of AKR1C3 as a therapeutic target in advanced disease.
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Affiliation(s)
- Karen E Knudsen
- Department of Cancer Biology, Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, Pennsylvania. Department of Urology, Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, Pennsylvania. Department of Radiation Oncology, Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, Pennsylvania. Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, Pennsylvania.
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27
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Dueregger A, Heidegger I, Ofer P, Perktold B, Ramoner R, Klocker H, Eder IE. The use of dietary supplements to alleviate androgen deprivation therapy side effects during prostate cancer treatment. Nutrients 2014; 6:4491-519. [PMID: 25338271 PMCID: PMC4210931 DOI: 10.3390/nu6104491] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2014] [Revised: 09/07/2014] [Accepted: 09/19/2014] [Indexed: 01/17/2023] Open
Abstract
Prostate cancer (PCa), the most commonly diagnosed cancer and second leading cause of male cancer death in Western societies, is typically androgen-dependent, a characteristic that underlies the rationale of androgen deprivation therapy (ADT). Approximately 90% of patients initially respond to ADT strategies, however many experience side effects including hot flashes, cardiotoxicity, metabolic and musculoskeletal alterations. This review summarizes pre-clinical and clinical studies investigating the ability of dietary supplements to alleviate adverse effects arising from ADT. In particular, we focus on herbal compounds, phytoestrogens, selenium (Se), fatty acids (FA), calcium, and Vitamins D and E. Indeed, there is some evidence that calcium and Vitamin D can prevent the development of osteoporosis during ADT. On the other hand, caution should be taken with the antioxidants Se and Vitamin E until the basis underlying their respective association with type 2 diabetes mellitus and PCa tumor development has been clarified. However, many other promising supplements have not yet been subjected large-scale clinical trials making it difficult to assess their efficacy. Given the demographic trend of increased PCa diagnoses and dependence on ADT as a major therapeutic strategy, further studies are required to objectively evaluate these supplements as adjuvant for PCa patients receiving ADT.
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Affiliation(s)
- Andrea Dueregger
- Division of Experimental Urology, Department of Urology, Innsbruck Medical University, Innsbruck, A-6020 Austria.
| | - Isabel Heidegger
- Division of Experimental Urology, Department of Urology, Innsbruck Medical University, Innsbruck, A-6020 Austria.
| | - Philipp Ofer
- Division of Experimental Urology, Department of Urology, Innsbruck Medical University, Innsbruck, A-6020 Austria.
| | - Bernhard Perktold
- Department of Dietetics, University of Applied Sciences Tyrol, Innsbruck A-6020, Austria.
| | - Reinhold Ramoner
- Department of Dietetics, University of Applied Sciences Tyrol, Innsbruck A-6020, Austria.
| | - Helmut Klocker
- Division of Experimental Urology, Department of Urology, Innsbruck Medical University, Innsbruck, A-6020 Austria.
| | - Iris E Eder
- Division of Experimental Urology, Department of Urology, Innsbruck Medical University, Innsbruck, A-6020 Austria.
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28
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Donovan MJ, Cordon-Cardo C. Overcoming tumor heterogeneity in the molecular diagnosis of urological cancers. Expert Rev Mol Diagn 2014; 14:1023-31. [PMID: 25327491 DOI: 10.1586/14737159.2014.965151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Our understanding of tumor heterogeneity and impact on treatment response is still in its infancy, presenting significant challenges to the molecular pathologist, treating physician and ultimately for the patient. Given that tumor recurrence due to treatment resistance is the most common cause of cancer death, there remains a critical unmet need to change the current paradigm. The mechanisms which underlie tumor heterogeneity can be broadly divided into genomic instability and non-mutational processes, including stochastic variations in cellular responses, modulation by tumor microenvironment and or phenotypic/ functional plasticity relating to cancer stem cells. We believe that these biological mechanisms are not mutually exclusive and emphasize the need for more suitable methodologies to exploit the spatiotemporal patterns of intratumoral heterogeneity using novel approaches such as quantitative tissue-based biomarker assessment and systemic fluid analytics. Generating a comprehensive patient-centric phenotypic disease profile should generate a 'codex' which can be employed to change the current treatment decision process.
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Affiliation(s)
- Michael J Donovan
- Department of Pathology, Icahn School of Medicine, 1468 Madison Avenue, New York City, NY 10029, USA
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29
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Increased androgen receptor gene copy number is associated with TMPRSS2-ERG
rearrangement in prostatic small cell carcinoma. Mol Carcinog 2014; 54:900-7. [DOI: 10.1002/mc.22162] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2014] [Revised: 03/24/2014] [Accepted: 03/27/2014] [Indexed: 11/07/2022]
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30
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Jubb AM, Koeppen H, Reis-Filho JS. Pathology in drug discovery and development. J Pathol 2014; 232:99-102. [PMID: 24122335 DOI: 10.1002/path.4290] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Revised: 09/30/2013] [Accepted: 10/01/2013] [Indexed: 12/19/2022]
Abstract
The rapid pace of drug discovery and drug development in oncology, immunology and ophthalmology brings new challenges; the efficient and effective development of new targeted drugs will require more detailed molecular classifications of histologically homogeneous diseases that show heterogeneous clinical outcomes. To this end, single companion diagnostics for specific drugs will be replaced by multiplex diagnostics for entire therapeutic areas, preserving tissue and enabling rapid molecular taxonomy. The field will move away from the development of new molecular entities as single agents, to which resistance is common. Instead, a detailed understanding of the pathological mechanisms of resistance, in patients and in preclinical models, will be key to the validation of scientifically rational and clinically effective drug combinations. To remain at the heart of disease diagnosis and appropriate management, pathologists must evolve into translational biologists and biomarker scientists. Herein, we provide examples of where this metamorphosis has already taken place, in lung cancer and melanoma, where the transformation has yet to begin, in the use of immunotherapies for ophthalmology and oncology, and where there is fertile soil for a revolution in treatment, in efforts to classify glioblastoma and personalize treatment. The challenges of disease heterogeneity, the regulatory environment and adequate tissue are ever present, but these too are being overcome in dedicated academic centres. In summary, the tools necessary to overcome the 'whens' and 'ifs' of the molecular revolution are in the hands of pathologists today; it is a matter of standardization, training and leadership to bring these into routine practice and translate science into patient benefit. This Annual Review Issue of the Journal of Pathology highlights the central role for pathology in modern drug discovery and development.
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Affiliation(s)
- Adrian M Jubb
- Department of Product Development - Oncology, Genentech Inc., South San Francisco, CA, USA
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Pienta KJ, Walia G, Simons JW, Soule HR. Beyond the androgen receptor: new approaches to treating metastatic prostate cancer. Report of the 2013 Prouts Neck Prostate Cancer Meeting. Prostate 2014; 74:314-20. [PMID: 24249419 PMCID: PMC4253084 DOI: 10.1002/pros.22753] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Accepted: 10/30/2013] [Indexed: 12/13/2022]
Abstract
INTRODUCTION The Prouts Neck Meetings on Prostate Cancer began in 1985 through the efforts of the Organ Systems Branch of the National Cancer Institute to stimulate new research and focused around specific questions in prostate tumorigenesis and therapy. METHODS These meetings were think tanks, composed of around 75 individuals, and divided equally between young investigators and senior investigators. Over the years, many new concepts related to prostate cancer resulted from these meetings and the prostate cancer community has sorely missed them since the last one in 2007. RESULTS We report here the first of a new series of meetings. The 2013 meeting focused on defining how the field of treatment for metastatic prostate cancer needs to evolve to impact survival and was entitled: "Beyond AR: New Approaches to Treating Metastatic Prostate Cancer." As castrate resistant prostate cancers escape second generation anti-androgen agents, three phenotypes/genotypes of CRPC appear to be increasing in prevalence and remain resistant to treatment: NeuroEndocrine Prostate Cancer, Persistent AR-Dependent Prostate Cancer, and Androgen Receptor Pathway Independent Prostate Cancer. DISCUSSION It is clear that new treatment paradigms need to be developed for this diverse group of diseases. The Prouts Neck 2013 Meeting on Prostate Cancer helped to frame the current state of the field and jumpstart ideas for new avenues of treatment.
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Affiliation(s)
- Kenneth J Pienta
- Department of Urology, The James Buchanan Brady Urological InstituteBaltimore, Maryland
- Department of Oncology, The Johns Hopkins School of MedicineBaltimore, Maryland
- Department of Pharmacology and Molecular Sciences, The Johns Hopkins School of MedicineBaltimore, Maryland
| | - Guneet Walia
- Prostate Cancer FoundationSanta Monica, California
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