1
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Liu YN, Liu MK, Wen YC, Li CH, Yeh HL, Dung PVT, Jiang KC, Chen WH, Li HR, Huang J, Chen WY. Binding of interleukin-1 receptor antagonist to cholinergic receptor muscarinic 4 promotes immunosuppression and neuroendocrine differentiation in prostate cancer. Cancer Lett 2024; 598:217090. [PMID: 38945201 DOI: 10.1016/j.canlet.2024.217090] [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: 05/17/2024] [Revised: 06/14/2024] [Accepted: 06/25/2024] [Indexed: 07/02/2024]
Abstract
The tumor microenvironment (TME) of prostate cancer (PCa) is characterized by high levels of immunosuppressive molecules, including cytokines and chemokines. This creates a hostile immune landscape that impedes effective immune responses. The interleukin-1 (IL-1) receptor antagonist (IL1RN), a key anti-inflammatory molecule, plays a significant role in suppressing IL-1-related immune and inflammatory responses. Our research investigates the oncogenic role of IL1RN in PCa, particularly its interactions with muscarinic acetylcholine receptor 4 (CHRM4), and its involvement in driving immunosuppressive pathways and M2-like macrophage polarization within the PCa TME. We demonstrate that following androgen deprivation therapy (ADT), the IL1RN-CHRM4 interaction in PCa activates the MAPK/AKT signaling pathway. This activation upregulates the transcription factors E2F1 and MYCN, stimulating IL1RN production and creating a positive feedback loop that increases CHRM4 abundance in both PCa cells and M2-like macrophages. This ADT-driven IL1RN/CHRM4 axis significantly enhances immune checkpoint markers associated with neuroendocrine differentiation and treatment-resistant outcomes. Higher serum IL1RN levels are associated with increased disease aggressiveness and M2-like macrophage markers in advanced PCa patients. Additionally, elevated IL1RN levels correlate with better clinical outcomes following immunotherapy. Clinical correlations between IL1RN and CHRM4 expression in advanced PCa patients and neuroendocrine PCa organoid models highlight their potential as therapeutic targets. Our data suggest that targeting the IL1RN/CHRM4 signaling could be a promising strategy for managing PCa progression and enhancing treatment responses.
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Affiliation(s)
- Yen-Nien Liu
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Ming-Kun Liu
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Yu-Ching Wen
- Department of Urology, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan; Department of Urology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan; TMU Research Center of Urology and Kidney, Taipei Medical University, Taipei, Taiwan
| | - Chien-Hsiu Li
- Department of Urology, Shuang Ho Hospital, Taipei Medical University, Taipei, Taiwan
| | - Hsiu-Lien Yeh
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Phan Vu Thuy Dung
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Kuo-Ching Jiang
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Wei-Hao Chen
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Han-Ru Li
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Jiaoti Huang
- Department of Pathology, Duke University Medical Center, Durham, NC, USA
| | - Wei-Yu Chen
- Department of Pathology, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan; Department of Pathology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.
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2
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Li W, Guo F, Zeng R, Liang H, Wang Y, Xiong W, Wu H, Yang C, Jin X. CDK4/6 Alters TBK1 Phosphorylation to Inhibit the STING Signaling Pathway in Prostate Cancer. Cancer Res 2024; 84:2588-2606. [PMID: 38861362 DOI: 10.1158/0008-5472.can-23-3704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 04/02/2024] [Accepted: 06/05/2024] [Indexed: 06/13/2024]
Abstract
The efficacy of immunotherapy in patients with prostate cancer is limited due to the "cold" tumor microenvironment and the paucity of neoantigens. The STING-TBK1-IRF3 signaling axis is involved in innate immunity and has been increasingly recognized as a candidate target for cancer immunotherapy. Here, we found that treatment with CDK4/6 inhibitors stimulates the STING pathway and enhances the antitumor effect of STING agonists in prostate cancer. Mechanistically, CDK4/6 phosphorylated TBK1 at S527 to inactivate the STING signaling pathway independent of RB1 in prostate cancer cells. CDK4/6-mediated phosphorylation of RB1 at S249/T252 also induced the interaction of RB1 with TBK1 to diminish the phosphorylation of TBK1 at S172, which suppressed STING pathway activation. Overall, this study showed that CDK4/6 suppresses the STING pathway through RB1-dependent and RB1-independent pathways, indicating that CDK4/6 inhibition could be a potential strategy to overcome immunosuppression in prostate cancer. Significance: Inhibiting CDK4/6 activates STING-TBK1-IRF3 signaling in prostate cancer by regulating TBK1 phosphorylation, suggesting that the combination of CDK4/6 inhibitors and STING agonists could be an effective approach to stimulate innate immunity.
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Affiliation(s)
- Wei Li
- Department of Urology, The Second Xiangya Hospital, Central South University, Changsha, China
- Uro-Oncology Institute of Central South University, Changsha, China
| | - Feng Guo
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ruijiang Zeng
- Department of Urology, The Second Xiangya Hospital, Central South University, Changsha, China
- Uro-Oncology Institute of Central South University, Changsha, China
| | - Huaiyuan Liang
- Department of Urology, The Second Xiangya Hospital, Central South University, Changsha, China
- Uro-Oncology Institute of Central South University, Changsha, China
| | - Yinhuai Wang
- Department of Urology, The Second Xiangya Hospital, Central South University, Changsha, China
- Uro-Oncology Institute of Central South University, Changsha, China
| | - Wei Xiong
- Department of Urology, The Second Xiangya Hospital, Central South University, Changsha, China
- Uro-Oncology Institute of Central South University, Changsha, China
| | - Heshui Wu
- Department of Pancreatic Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chunguang Yang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xin Jin
- Department of Urology, The Second Xiangya Hospital, Central South University, Changsha, China
- Uro-Oncology Institute of Central South University, Changsha, China
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3
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Zhang W, Fan Y, Zhang Y, Feng Y, Luo Y, Zhou X, Chen Z, Wang C, Lu T, Tang F, Chen Y, Li H, Jiao Y. Discovery of novel biphenyl derivatives as androgen receptor degraders for the treatment of enzalutamide-resistant prostate cancer. Bioorg Chem 2024; 148:107433. [PMID: 38754311 DOI: 10.1016/j.bioorg.2024.107433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 05/05/2024] [Accepted: 05/06/2024] [Indexed: 05/18/2024]
Abstract
Second-generation AR antagonists, such as enzalutamide, are the primary therapeutic agents for advanced prostate cancer. However, the development of both primary and secondary drug resistance leads to treatment failures and patient mortality. Bifunctional agents that simultaneously antagonize and degrade AR block the AR signaling pathway more completely and exhibit excellent antiproliferative activity against wild-type and drug-resistant prostate cancer cells. Here, we reported the discovery and optimization of a series of biphenyl derivatives as androgen receptor antagonists and degraders. These biphenyl derivatives exhibited potent antiproliferative activity against LNCaP and 22Rv1 cells. Our discoveries enrich the diversity of small molecule AR degraders and offer insights for the development of novel AR degraders for the treatment of enzalutamide-resistant prostate cancer.
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Affiliation(s)
- Wenqiang Zhang
- School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, PR China
| | - Yawen Fan
- School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, PR China
| | - Yan Zhang
- School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, PR China; State Key Laboratory of Neurology and Oncology Drug Development, Jiangsu Simcere Pharmaceutical Co., Ltd, 699-18 Xuan Wu Avenue, Nanjing 210042, PR China; Jiangsu Simcere Pharmaceutical Co, Ltd, 699-18 Xuan Wu Avenue, Nanjing 210042, PR China
| | - Yunrui Feng
- School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, PR China
| | - Yi Luo
- School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, PR China
| | - Xiaoyu Zhou
- School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, PR China
| | - Zhuolin Chen
- School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, PR China
| | - Chenxiao Wang
- School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, PR China
| | - Tao Lu
- School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, PR China; State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, PR China
| | - Feng Tang
- State Key Laboratory of Neurology and Oncology Drug Development, Jiangsu Simcere Pharmaceutical Co., Ltd, 699-18 Xuan Wu Avenue, Nanjing 210042, PR China; Jiangsu Simcere Pharmaceutical Co, Ltd, 699-18 Xuan Wu Avenue, Nanjing 210042, PR China.
| | - Yadong Chen
- School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, PR China.
| | - Hongmei Li
- School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, PR China.
| | - Yu Jiao
- School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, PR China.
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Liao C, Huang Z, Liu J, Deng M, Wang L, Chen Y, Li J, Zhao J, Luo X, Zhu J, Wu Q, Fu W, Sun B, Zheng J. Role of extracellular vesicles in castration-resistant prostate cancer. Crit Rev Oncol Hematol 2024; 197:104348. [PMID: 38588967 DOI: 10.1016/j.critrevonc.2024.104348] [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: 03/13/2024] [Revised: 04/03/2024] [Accepted: 04/04/2024] [Indexed: 04/10/2024] Open
Abstract
Prostate cancer (PCa) is a common health threat to men worldwide, and castration-resistant PCa (CRPC) is the leading cause of PCa-related deaths. Extracellular vesicles (EVs) are lipid bilayer compartments secreted by living cells that are important mediators of intercellular communication. EVs regulate the biological processes of recipient cells by transmitting heterogeneous cargoes, contributing to CRPC occurrence, progression, and drug resistance. These EVs originate not only from malignant cells, but also from various cell types within the tumor microenvironment. EVs are widely dispersed throughout diverse biological fluids and are attractive biomarkers derived from noninvasive liquid biopsy techniques. EV quantities and cargoes have been tested as potential biomarkers for CRPC diagnosis, progression, drug resistance, and prognosis; however, technical barriers to their clinical application continue to exist. Furthermore, exogenous EVs may provide tools for new therapies for CRPC. This review summarizes the current evidence on the role of EVs in CRPC.
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Affiliation(s)
- Chaoyu Liao
- Department of Urology, Urologic Surgery Center, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing 400037, China
| | - Zeyu Huang
- Department of Urology, Urologic Surgery Center, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing 400037, China
| | - Jingui Liu
- Department of Urology, Urologic Surgery Center, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing 400037, China
| | - Min Deng
- Department of Urology, Urologic Surgery Center, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing 400037, China
| | - Leyi Wang
- Department of Urology, Urologic Surgery Center, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing 400037, China
| | - Yutong Chen
- Department of Urology, Urologic Surgery Center, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing 400037, China
| | - Jia Li
- Department of Urology, Urologic Surgery Center, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing 400037, China
| | - Jiang Zhao
- Department of Urology, Urologic Surgery Center, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing 400037, China
| | - Xing Luo
- Department of Urology, Urologic Surgery Center, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing 400037, China
| | - Jingzhen Zhu
- Department of Urology, Urologic Surgery Center, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing 400037, China
| | - Qingjian Wu
- Department of Urology, Urologic Surgery Center, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing 400037, China
| | - Weihua Fu
- Department of Urology, Urologic Surgery Center, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing 400037, China
| | - Bishao Sun
- Department of Urology, Urologic Surgery Center, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing 400037, China.
| | - Ji Zheng
- Department of Urology, Urologic Surgery Center, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing 400037, China.
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Champagne A, Chebra I, Jain P, Ringuette Goulet C, Lauzier A, Guyon A, Neveu B, Pouliot F. An Extracellular Matrix Overlay Model for Bioluminescence Microscopy to Measure Single-Cell Heterogeneous Responses to Antiandrogens in Prostate Cancer Cells. BIOSENSORS 2024; 14:175. [PMID: 38667168 PMCID: PMC11048191 DOI: 10.3390/bios14040175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Revised: 03/23/2024] [Accepted: 03/28/2024] [Indexed: 04/28/2024]
Abstract
Prostate cancer (PCa) displays diverse intra-tumoral traits, impacting its progression and treatment outcomes. This study aimed to refine PCa cell culture conditions for dynamic monitoring of androgen receptor (AR) activity at the single-cell level. We introduced an extracellular matrix-Matrigel (ECM-M) culture model, enhancing cellular tracking during bioluminescence single-cell imaging while improving cell viability. ECM-M notably tripled the traceability of poorly adherent PCa cells, facilitating robust single-cell tracking, without impeding substrate permeability or AR response. This model effectively monitored AR modulation by antiandrogens across various PCa cell lines. Single-cell imaging unveiled heterogeneous antiandrogen responses within populations, correlating non-responsive cell proportions with drug IC50 values. Integrating ECM-M culture with the PSEBC-TSTA biosensor enabled precise characterization of ARi responsiveness within diverse cell populations. Our ECM-M model stands as a promising tool to assess heterogeneous single-cell treatment responses in cancer, offering insights to link drug responses to intracellular signaling dynamics. This approach enhances our comprehension of the nuanced and dynamic nature of PCa treatment responses.
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Affiliation(s)
- Audrey Champagne
- Centre de Recherche du CHU de Québec, Université Laval, Quebec, QC G1V 4G2, Canada (I.C.); (P.J.); (C.R.G.); (A.L.); (A.G.)
- Department of Surgery (Urology), Faculty of Medicine, Laval University, Quebec, QC G1R 2J6, Canada
| | - Imene Chebra
- Centre de Recherche du CHU de Québec, Université Laval, Quebec, QC G1V 4G2, Canada (I.C.); (P.J.); (C.R.G.); (A.L.); (A.G.)
- Department of Surgery (Urology), Faculty of Medicine, Laval University, Quebec, QC G1R 2J6, Canada
| | - Pallavi Jain
- Centre de Recherche du CHU de Québec, Université Laval, Quebec, QC G1V 4G2, Canada (I.C.); (P.J.); (C.R.G.); (A.L.); (A.G.)
- Department of Surgery (Urology), Faculty of Medicine, Laval University, Quebec, QC G1R 2J6, Canada
| | - Cassandra Ringuette Goulet
- Centre de Recherche du CHU de Québec, Université Laval, Quebec, QC G1V 4G2, Canada (I.C.); (P.J.); (C.R.G.); (A.L.); (A.G.)
- Department of Surgery (Urology), Faculty of Medicine, Laval University, Quebec, QC G1R 2J6, Canada
| | - Annie Lauzier
- Centre de Recherche du CHU de Québec, Université Laval, Quebec, QC G1V 4G2, Canada (I.C.); (P.J.); (C.R.G.); (A.L.); (A.G.)
- Department of Surgery (Urology), Faculty of Medicine, Laval University, Quebec, QC G1R 2J6, Canada
| | - Antoine Guyon
- Centre de Recherche du CHU de Québec, Université Laval, Quebec, QC G1V 4G2, Canada (I.C.); (P.J.); (C.R.G.); (A.L.); (A.G.)
- Department of Surgery (Urology), Faculty of Medicine, Laval University, Quebec, QC G1R 2J6, Canada
| | - Bertrand Neveu
- Centre de Recherche du CHU de Québec, Université Laval, Quebec, QC G1V 4G2, Canada (I.C.); (P.J.); (C.R.G.); (A.L.); (A.G.)
- Department of Surgery (Urology), Faculty of Medicine, Laval University, Quebec, QC G1R 2J6, Canada
| | - Frédéric Pouliot
- Centre de Recherche du CHU de Québec, Université Laval, Quebec, QC G1V 4G2, Canada (I.C.); (P.J.); (C.R.G.); (A.L.); (A.G.)
- Department of Surgery (Urology), Faculty of Medicine, Laval University, Quebec, QC G1R 2J6, Canada
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Al-Samsam S, Bartos J, Samal V, Dvorak J, Kolarova H, Richter I. Abiraterone and enzalutamide in the first line therapy of metastatic castration resistant prostate cancer. Rep Pract Oncol Radiother 2024; 29:1-9. [PMID: 39165601 PMCID: PMC11333069 DOI: 10.5603/rpor.99028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 01/09/2024] [Indexed: 08/22/2024] Open
Abstract
Background The aim was to assess therapeutic outcomes and tolerance in patients with metastatic castration resistant prostate cancer (mCRPC) treated with androgen receptor targeted agents (ARTA) treatment at one oncological center in the Czech Republic. Materials and methods Retrospective analysis of 64 patients with mCRPC treated with abiraterone (50 patients) and enzalutamide (14 patients) in the first line of this disease was conducted. Kaplan-Meier analysis was used to calculate progression free survival (PFS) and overall survival (OS). We performed a multivariate analysis of risk factors for treatment outcomes (PFS, OS) by Cox regression analysis. Results The median follow-up was 28.4 months. The median PFS was 15.4 months [95% confidence interval (CI): 12.3-18.5], median OS was 38.2 months (95% CI: 19.9-56.5). Regression analysis demonstrated a favorable prognostic effect on PFS in patients with reduction of PSA ≥ 50 %, in patients with early reduction of prostate-specific antigen (PSA) ≥ 50% within 3 months, in patients younger than 74 years and in overall performance status (PS) 0. Regression analysis demonstrated a favorable prognostic effect on OS in patients with reduction of PSA ≥ 50 %, in patients with early reduction of PSA ≥ 50 % within 3 months and in patients with overall PS 0. Adverse effects grade 3-4 were reported in 17 (27.9%) patients in abirateron arm and in 1 (7.1%) patient in enzalutamide arm. Conclusion The analysis of patients with mCRPC treated with ARTA in the first line showed that ARTA represents an effective and safe therapy and contributes to longer survival.
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Affiliation(s)
- Sofya Al-Samsam
- Department of Oncology, Regional Hospital Liberec, Czech Republic
| | - Jiri Bartos
- Department of Oncology, Regional Hospital Liberec, Czech Republic
| | - Vladimir Samal
- Department of Urology, Regional Hospital Liberec, Czech Republic
| | - Josef Dvorak
- Department of Oncology, First Faculty of Medicine, Charles University and Thomayer Hospital, Prague, Czech Republic
| | | | - Igor Richter
- Department of Oncology, Regional Hospital Liberec, Czech Republic
- Department of Oncology, First Faculty of Medicine, Charles University and Thomayer Hospital, Prague, Czech Republic
- Technical University of Liberec, Czech Republic
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7
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Ochiai K, Yonezawa R, Fujii S. Structural Development of Androgen Receptor Antagonists Using Phenylferrocene Framework as a Hydrophobic Pharmacophore. ChemMedChem 2024; 19:e202400040. [PMID: 38291942 DOI: 10.1002/cmdc.202400040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 01/30/2024] [Accepted: 01/30/2024] [Indexed: 02/01/2024]
Abstract
We previously identified nitrophenylferrocenes and cyanophenylferrocenes as promising lead structures of novel androgen receptor (AR) antagonists, based on the structural similarity between ferrocene and the steroidal skeleton. In the present research, we explored the structure-activity relationship (SAR) of phenylferrocene derivatives. Introduction of a hydrophobic substituent such as a chlorine atom at the 2-position or 3-position of phenylferrocene derivatives significantly increased the antagonistic activity toward wild-type AR, and among the synthesized compounds, 3-chloro-4-cyanophenylferrocene (29) exhibited the most potent anti-proliferative activity toward the androgen-dependent growth of SC-3 cells expressing wild-type AR (IC50 14 nM). Like conventional antiandrogens such as hydroxyflutamide, the major active metabolite of flutamide, compound 29 exhibited agonistic activity toward T877A-AR, a mutant AR expressed in human prostate cancer cell line LNCaP. Notably, however, the 2-chloro isomer 27 showed potent antagonistic activity toward wild-type AR (IC50 49 nM) and also exhibited antagonistic activity toward T877A-AR. Our SAR data should prove helpful for the development of new-generation AR antagonists based on phenylferrocene as candidate agents to treat drug-resistant prostate cancer.
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Affiliation(s)
- Kotaro Ochiai
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo, 101-0062, Japan
| | - Ryo Yonezawa
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo, 101-0062, Japan
| | - Shinya Fujii
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo, 101-0062, Japan
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8
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Manzar N, Khan UK, Goel A, Carskadon S, Gupta N, Palanisamy N, Ateeq B. An integrative proteomics approach identifies tyrosine kinase KIT as a therapeutic target for SPINK1-positive prostate cancer. iScience 2024; 27:108794. [PMID: 38384854 PMCID: PMC10879682 DOI: 10.1016/j.isci.2024.108794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 08/05/2023] [Accepted: 01/02/2024] [Indexed: 02/23/2024] Open
Abstract
Elevated serine peptidase inhibitor, Kazal type 1 (SPINK1) levels in ∼10%-25% of prostate cancer (PCa) patients associate with aggressive phenotype, for which there are limited treatment choices and dismal clinical outcomes. Using an integrative proteomics approach involving label-free phosphoproteome and proteome profiling, we delineated the downstream signaling pathways involved in SPINK1-mediated tumorigenesis and identified tyrosine kinase KIT as highly enriched. Furthermore, high to moderate levels of KIT expression were detected in ∼85% of SPINK1-positive PCa specimens. We show KIT signaling orchestrates SPINK1-mediated oncogenesis, and treatment with KIT inhibitor reduces tumor growth and metastases in preclinical mice models. Mechanistically, KIT signaling modulates WNT/β-catenin pathway and confers stemness-related features in PCa. Notably, inhibiting KIT signaling led to restoration of AR/REST levels, forming a feedback loop enabling SPINK1 repression. Overall, we uncover the role of KIT signaling downstream of SPINK1 in maintaining lineage plasticity and provide distinct treatment modalities for advanced-stage SPINK1-positive patients.
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Affiliation(s)
- Nishat Manzar
- Molecular Oncology Laboratory, Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur, UP 208016, India
| | - Umar Khalid Khan
- Molecular Oncology Laboratory, Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur, UP 208016, India
| | - Ayush Goel
- Molecular Oncology Laboratory, Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur, UP 208016, India
| | - Shannon Carskadon
- Vattikuti Urology Institute, Department of Urology, Henry Ford Health System, Detroit, MI 48202, USA
| | - Nilesh Gupta
- Department of Pathology, Henry Ford Health System, Detroit, MI 48202, USA
| | - Nallasivam Palanisamy
- Vattikuti Urology Institute, Department of Urology, Henry Ford Health System, Detroit, MI 48202, USA
| | - Bushra Ateeq
- Molecular Oncology Laboratory, Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur, UP 208016, India
- Mehta Family Center for Engineering in Medicine, Indian Institute of Technology Kanpur, Kanpur, UP 208016, India
- Centre of Excellence for Cancer - Gangwal School of Medical Sciences and Technology, Indian Institute of Technology Kanpur, Kanpur, UP 208016, India
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9
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Sonam Dongsar T, Tsering Dongsar T, Gupta G, Alsayari A, Wahab S, Kesharwani P. PLGA nanomedical consignation: A novel approach for the management of prostate cancer. Int J Pharm 2024; 652:123808. [PMID: 38224758 DOI: 10.1016/j.ijpharm.2024.123808] [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: 10/20/2023] [Revised: 12/27/2023] [Accepted: 01/12/2024] [Indexed: 01/17/2024]
Abstract
The malignancy of the prostate is a complicated ailment which impacts millions of male populations around the globe. Despite the multitude of endeavour accomplished within this domain, modalities that are involved in the ameliorative management of predisposed infirmity are still relent upon non-specific and invasive procedures, thus imposing a detrimental mark on the living standard of the individual. Also, the orchestrated therapeutic interventions are still incompetent in substantiating a robust and unabridged therapeutic end point owing to their inadequate solubility, low bioavailability, limited cell assimilation, and swift deterioration, thereby muffling the clinical application of these existing treatment modalities. Nanotechnology has been employed in an array of modalities for the medical management of malignancies. Among the assortment of available nano-scaffolds, nanocarriers composed of a bio-decomposable and hybrid polymeric material like PLGA hold an opportunity to advance as standard chemotherapeutic modalities. PLGA-based nanocarriers have the prospect to address the drawbacks associated with conventional cancer interventions, owing to their versatility, durability, nontoxic nature, and their ability to facilitate prolonged drug release. This review intends to describe the plethora of evidence-based studies performed to validate the applicability of PLGA nanosystem in the amelioration of prostate malignancies, in conjunction with PLGA focused nano-scaffold in the clinical management of prostate carcinoma. This review seeks to explore numerous evidence-based studies confirming the applicability of PLGA nanosystems in ameliorating prostate malignancies. It also delves into the role of PLGA-focused nano-scaffolds in the clinical management of prostate carcinoma, aiming to provide a comprehensive perspective on these advancements.
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Affiliation(s)
- Tenzin Sonam Dongsar
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - Tenzin Tsering Dongsar
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - Garima Gupta
- Graphic Era Hill University, Dehradun, 248002, India; School of Allied Medical Sciences, Lovely Professional University, Phagwara, Punjab, India
| | - Abdulrhman Alsayari
- Department of Pharmacognosy, College of Pharmacy, King Khalid University, Abha 62529, Saudi Arabia
| | - Shadma Wahab
- Department of Pharmacognosy, College of Pharmacy, King Khalid University, Abha 62529, Saudi Arabia
| | - Prashant Kesharwani
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India.
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10
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Panja S, Truica MI, Yu CY, Saggurthi V, Craige MW, Whitehead K, Tuiche MV, Al-Saadi A, Vyas R, Ganesan S, Gohel S, Coffman F, Parrott JS, Quan S, Jha S, Kim I, Schaeffer E, Kothari V, Abdulkadir SA, Mitrofanova A. Mechanism-centric regulatory network identifies NME2 and MYC programs as markers of Enzalutamide resistance in CRPC. Nat Commun 2024; 15:352. [PMID: 38191557 PMCID: PMC10774320 DOI: 10.1038/s41467-024-44686-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Accepted: 12/22/2023] [Indexed: 01/10/2024] Open
Abstract
Heterogeneous response to Enzalutamide, a second-generation androgen receptor signaling inhibitor, is a central problem in castration-resistant prostate cancer (CRPC) management. Genome-wide systems investigation of mechanisms that govern Enzalutamide resistance promise to elucidate markers of heterogeneous treatment response and salvage therapies for CRPC patients. Focusing on the de novo role of MYC as a marker of Enzalutamide resistance, here we reconstruct a CRPC-specific mechanism-centric regulatory network, connecting molecular pathways with their upstream transcriptional regulatory programs. Mining this network with signatures of Enzalutamide response identifies NME2 as an upstream regulatory partner of MYC in CRPC and demonstrates that NME2-MYC increased activities can predict patients at risk of resistance to Enzalutamide, independent of co-variates. Furthermore, our experimental investigations demonstrate that targeting MYC and its partner NME2 is beneficial in Enzalutamide-resistant conditions and could provide an effective strategy for patients at risk of Enzalutamide resistance and/or for patients who failed Enzalutamide treatment.
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Affiliation(s)
- Sukanya Panja
- Department of Health Informatics, Rutgers School of Health Professions, Newark, NJ, 07107, USA
| | - Mihai Ioan Truica
- Department of Urology, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA
| | - Christina Y Yu
- Department of Health Informatics, Rutgers School of Health Professions, Newark, NJ, 07107, USA
| | - Vamshi Saggurthi
- Department of Health Informatics, Rutgers School of Health Professions, Newark, NJ, 07107, USA
| | - Michael W Craige
- Department of Health Informatics, Rutgers School of Health Professions, Newark, NJ, 07107, USA
| | - Katie Whitehead
- Department of Health Informatics, Rutgers School of Health Professions, Newark, NJ, 07107, USA
| | - Mayra V Tuiche
- Department of Health Informatics, Rutgers School of Health Professions, Newark, NJ, 07107, USA
- Rutgers Biomedical and Health Sciences, Rutgers School of Graduate Studies, Newark, NJ, 07039, USA
| | - Aymen Al-Saadi
- Department of Electrical and Computer Engineering, Rutgers School of Engineering, New Brunswick, NJ, 08854, USA
| | - Riddhi Vyas
- Department of Health Informatics, Rutgers School of Health Professions, Newark, NJ, 07107, USA
| | - Shridar Ganesan
- Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, 08901, USA
| | - Suril Gohel
- Department of Health Informatics, Rutgers School of Health Professions, Newark, NJ, 07107, USA
| | - Frederick Coffman
- Department of Health Informatics, Rutgers School of Health Professions, Newark, NJ, 07107, USA
| | - James S Parrott
- Department of Health Informatics, Rutgers School of Health Professions, Newark, NJ, 07107, USA
| | - Songhua Quan
- Department of Urology, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA
| | - Shantenu Jha
- Department of Electrical and Computer Engineering, Rutgers School of Engineering, New Brunswick, NJ, 08854, USA
| | - Isaac Kim
- Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, 08901, USA
- Department of Urology, Yale School of Medicine, New Heaven, CT, 06510, USA
| | - Edward Schaeffer
- Department of Urology, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA
| | - Vishal Kothari
- Department of Urology, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA.
| | - Sarki A Abdulkadir
- Department of Urology, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA.
- Robert H. Lurie Comprehensive Cancer Center, Chicago, IL, 60611, USA.
| | - Antonina Mitrofanova
- Department of Health Informatics, Rutgers School of Health Professions, Newark, NJ, 07107, USA.
- Rutgers Cancer Institute of New Jersey, New Brunswick, NJ, 08901, USA.
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11
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Liu Z, Kuang S, Chen Q. A review focusing on the role of pyroptosis in prostate cancer. Medicine (Baltimore) 2023; 102:e36605. [PMID: 38115248 PMCID: PMC10727670 DOI: 10.1097/md.0000000000036605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 11/10/2023] [Accepted: 11/21/2023] [Indexed: 12/21/2023] Open
Abstract
As one of the types of programmed cell death, pyroptosis has become a focus of research in recent years. Numerous studies have shown that pyroptosis plays a regulatory role in tumor cell invasiveness, differentiation, proliferation, and metastasis. It has been demonstrated that pyroptosis is involved in the regulation of signaling pathways implicated in the pathogenesis of prostate cancer (PCa). Furthermore, the loss of expression of pyroptosis-related genes in PCa has been reported, and pyroptosis-related genes have demonstrated a considerable ability in predicting the prognosis of PCa. Therefore, the potential role of pyroptosis in regulating the development of PCa warrants further investigation and attention. In this review, we summarize the basics of the role of pyroptosis and also discuss research into the mechanisms of action associated with pyroptosis in PCa. It is hoped that by exploring the potential of the pyroptosis pathway in intervening in PCa, it will provide a viable direction for the diversification of PCa treatment.
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Affiliation(s)
- Zhewen Liu
- Hunan University of Chinese Medicine, Changsha, People’s Republic of China
- The First Affiliated Hospital, Hunan University of Chinese Medicine, Changsha, People’s Republic of China
| | - Shida Kuang
- Hunan University of Chinese Medicine, Changsha, People’s Republic of China
| | - Qihua Chen
- Hunan University of Chinese Medicine, Changsha, People’s Republic of China
- The First Affiliated Hospital, Hunan University of Chinese Medicine, Changsha, People’s Republic of China
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12
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Hadfield MJ, Lyall V, Holle LM, Dennison M. Updates in the Treatment of Non-Metastatic Castrate-Resistant Prostate Cancer: The Benefit of Second-Generation Androgen Receptor Antagonists. Ann Pharmacother 2023; 57:1302-1311. [PMID: 36840339 DOI: 10.1177/10600280231155441] [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] [Indexed: 02/26/2023] Open
Abstract
OBJECTIVE To review pharmacology, efficacy, safety, and considerations for use, of second-generation androgen receptor (AR) antagonists in treatment of nonmetastatic castrate-resistant prostate cancer (M0CRPC). DATA SOURCES Conducted search in PubMed and Google scholar (January, 1, 2002-December 31, 2022), using relevant terms. STUDY SELECTION AND DATA EXTRACTION Relevant English-language studies, conducted in humans evaluating second-generation AR antagonists for M0CRPC, and additional articles and package inserts were considered. DATA SYNTHESIS Apalutamide, darolutamide, and enzalutamide are effective in delaying the time to development of metastatic prostate cancer in men with M0CRPC with a rapid prostate-specific antigen (PSA) doubling time (<10 months). No head-to-head, randomized, clinical trials have been conducted. The most common adverse effects include fatigue and hypertension, and quality of life is maintained in most patients. Cost is similar among the agents (~$15,000/month). Drug-drug interactions vary among these agents and should be considered, when selecting therapy as well as likely adherence. Darolutamide is administered twice daily with the others once daily. RELEVANCE TO PATIENT CARE AND CLINICAL PRACTICE Second-generation AR antagonists are effective in reducing time to development of metastatic disease and prolonging overall survival in patients with M0CRPC and a PSA doubling time of <10 months. Recent imaging advances may alter how we evaluate outcomes. CONCLUSIONS Second-generation AR antagonists improve disease control and overall survival. Generally, they are well tolerated and QOL is maintained. Selection of the best agent is based on the adverse effect profile, potential for drug- and disease-interactions, administration, cost, and patient preference.
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Affiliation(s)
- Matthew J Hadfield
- Department of Medical Oncology, The Warren Alpert Medical School, Brown University, Providence, RI, USA
| | - Vikram Lyall
- Section of Urology, Dartmouth Hitchcock Medical Center, Lebanon, NH, USA
| | - Lisa M Holle
- Department of Pharmacy Practice, University of Connecticut School of Pharmacy, Storrs, CT, USA
| | - Morgan Dennison
- University of Connecticut School of Pharmacy, Storrs, CT, USA
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13
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Elshazly AM, Gewirtz DA. Making the Case for Autophagy Inhibition as a Therapeutic Strategy in Combination with Androgen-Targeted Therapies in Prostate Cancer. Cancers (Basel) 2023; 15:5029. [PMID: 37894395 PMCID: PMC10605431 DOI: 10.3390/cancers15205029] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 10/15/2023] [Accepted: 10/16/2023] [Indexed: 10/29/2023] Open
Abstract
Androgen receptor targeting remains the primary therapeutic strategy in prostate cancer, encompassing androgen biosynthesis inhibitors and androgen receptor antagonists. While both androgen-receptor-positive and "castration-resistant" prostate cancer are responsive to these approaches, the development of resistance is an almost inevitable outcome leading to the castration-resistant form of the disease. Given that "cytoprotective" autophagy is considered to be a predominant mechanism of resistance to various chemotherapeutic agents as well as to radiation in the cancer literature, the purpose of this review is to evaluate whether autophagy plays a central role in limiting the utility of androgen deprivation therapies in prostate cancer. Unlike most of our previous reports, where multiple functional forms of autophagy were identified, making it difficult if not impossible to propose autophagy inhibition as a therapeutic strategy, the cytoprotective form of autophagy appears to predominate in the case of androgen deprivation therapies. This opens a potential pathway for improving the outcomes for prostate cancer patients once effective and reliable pharmacological autophagy inhibitors have been developed.
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Affiliation(s)
- Ahmed M. Elshazly
- Department of Pharmacology and Toxicology, Massey Cancer Center, Virginia Commonwealth University, 401 College St., Richmond, VA 23298, USA;
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh 33516, Egypt
| | - David A. Gewirtz
- Department of Pharmacology and Toxicology, Massey Cancer Center, Virginia Commonwealth University, 401 College St., Richmond, VA 23298, USA;
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14
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Feng D, Li L, Shi X, Zhu W, Wang J, Wu R, Li D, Wei W, Han P. Identification of senescence-related lncRNA prognostic index correlating with prognosis and radiosensitivity in prostate cancer patients. Aging (Albany NY) 2023; 15:9358-9376. [PMID: 37742230 PMCID: PMC10564441 DOI: 10.18632/aging.204888] [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: 02/02/2023] [Accepted: 06/22/2023] [Indexed: 09/26/2023]
Abstract
BACKGROUND An increasing number of studies are shown how crucial a role cellular senescence plays in tumor development. In this study, we developed a senescence-related lncRNA prognostic index (SRLPI) to forecast radiosensitivity and the probability of biochemical recurrence (BCR) in patients with prostate cancer (PCa). METHODS PCa cohorts in TCGA and GEO databases were downloaded. Senescence-and prognosis-related lncRNA with differential expression in tumor and normal samples were identified and used to establish the SRLPI score. Mutation landscape, function pathway, tumor stemness and heterogeneity and tumor immune microenvironment were also analyzed. We performed the analysis using R 3.6.3 and the appropriate tools. RESULTS A SRLPI score was constructed based on SNHG1 and MIAT in the TCGA cohort. Our classification of PCa patients into high- and low-risk groups was based on the median SRLPI score. When compared to the low-SRLPI group, the high-SRLPI group was more vulnerable to BCR (HR: 3.33). In terms of BCR-free survival and metastasis-free survival, the GSE116918 showed similar findings. Surprisingly, the SRLPI score demonstrated a high level of radiosensitivity for diagnosis (AUC: 0.98). Age, Gleason score, T stage, N stage, positive lymph nodes, and residual tumor were all significantly greater in patients with high SRLPI scores. Furthermore, this score was significantly related to markers of senescence. Protein secretion and androgen response were found to be substantially enriched in the low-SRLPI group, whereas E2F targets were found to be strongly enriched in the high-SRLPI group for pathway analysis. For the tumor microenvironment assessment, B cells, CD8+ T cells, immune score and TIDE score were positively related to SRLPI score while endothelial level was negatively associated with SRLPI score with statistical significance. CONCLUSIONS We developed a SRLPI score that was related to prognosis and radiosensitivity and might be helpful in clinical practice.
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Affiliation(s)
- Dechao Feng
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Li Li
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xu Shi
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Weizhen Zhu
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Jie Wang
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Ruicheng Wu
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Dengxiong Li
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Wuran Wei
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Ping Han
- Department of Urology, Institute of Urology, West China Hospital, Sichuan University, Chengdu 610041, China
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15
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Salem O, Jia S, Qian BZ, Hansen CG. AR activates YAP/TAZ differentially in prostate cancer. Life Sci Alliance 2023; 6:e202201620. [PMID: 37385752 PMCID: PMC10310930 DOI: 10.26508/lsa.202201620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 06/12/2023] [Accepted: 06/13/2023] [Indexed: 07/01/2023] Open
Abstract
The Hippo signalling pathway is a master regulator of cell growth, proliferation, and cancer. The transcriptional coregulators of the Hippo pathway, YAP and TAZ, are central in various cancers. However, how YAP and TAZ get activated in most types of cancers is not well understood. Here, we show that androgens activate YAP/TAZ via the androgen receptor (AR) in prostate cancer (PCa), and that this activation is differential. AR regulates YAP translation while inducing transcription of the TAZ encoding gene, WWTR1 Furthermore, we show that AR-mediated YAP/TAZ activation is regulated by the RhoA GTPases transcriptional mediator, serum response factor (SRF). Importantly, in prostate cancer patients, SRF expression positively correlates with TAZ and the YAP/TAZ target genes CYR61 and CTGF We demonstrate that YAP/TAZ are not essential for sustaining AR activity, however, targeting YAP/TAZ or SRF sensitize PCa cells to AR inhibition in anchorage-independent growth conditions. Our findings dissect the cellular roles of YAP, TAZ, and SRF in prostate cancer cells. Our data emphasize the interplay between these transcriptional regulators and their roles in prostate tumorigenesis and highlight how these insights might be exploited therapeutically.
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Affiliation(s)
- Omar Salem
- The University of Edinburgh, Centre for Inflammation Research, Edinburgh BioQuarter, Edinburgh, UK
- Institute for Regeneration and Repair, The University of Edinburgh, Edinburgh BioQuarter, Edinburgh, UK
| | - Siyang Jia
- The University of Edinburgh, Centre for Inflammation Research, Edinburgh BioQuarter, Edinburgh, UK
- Institute for Regeneration and Repair, The University of Edinburgh, Edinburgh BioQuarter, Edinburgh, UK
| | - Bin-Zhi Qian
- Medical Research Council Centre for Reproductive Health, College of Medicine and Veterinary Medicine, Queen's Medical Research Institute, The University of Edinburgh, Edinburgh, UK
| | - Carsten Gram Hansen
- The University of Edinburgh, Centre for Inflammation Research, Edinburgh BioQuarter, Edinburgh, UK
- Institute for Regeneration and Repair, The University of Edinburgh, Edinburgh BioQuarter, Edinburgh, UK
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16
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Liu J, Zhang R, Su T, Zhou Q, Gao L, He Z, Wang X, Zhao J, Xing Y, Sun F, Cai W, Wang X, Han J, Qin R, Désaubry L, Han B, Chen W. Targeting PHB1 to inhibit castration-resistant prostate cancer progression in vitro and in vivo. J Exp Clin Cancer Res 2023; 42:128. [PMID: 37210546 DOI: 10.1186/s13046-023-02695-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 05/01/2023] [Indexed: 05/22/2023] Open
Abstract
BACKGROUND Castration-resistant prostate cancer (CRPC) is currently the main challenge for prostate cancer (PCa) treatment, and there is an urgent need to find novel therapeutic targets and drugs. Prohibitin (PHB1) is a multifunctional chaperone/scaffold protein that is upregulated in various cancers and plays a pro-cancer role. FL3 is a synthetic flavagline drug that inhibits cancer cell proliferation by targeting PHB1. However, the biological functions of PHB1 in CRPC and the effect of FL3 on CRPC cells remain to be explored. METHODS Several public datasets were used to analyze the association between the expression level of PHB1 and PCa progression as well as outcome in PCa patients. The expression of PHB1 in human PCa specimens and PCa cell lines was examined by immunohistochemistry (IHC), qRT-PCR, and Western blot. The biological roles of PHB1 in castration resistance and underlying mechanisms were investigated by gain/loss-of-function analyses. Next, in vitro and in vivo experiments were conducted to investigate the anti-cancer effects of FL3 on CRPC cells as well as the underlying mechanisms. RESULTS PHB1 expression was significantly upregulated in CRPC and was associated with poor prognosis. PHB1 promoted castration resistance of PCa cells under androgen deprivation condition. PHB1 is an androgen receptor (AR) suppressive gene, and androgen deprivation promoted the PHB1 expression and its nucleus-cytoplasmic translocation. FL3, alone or combined with the second-generation anti-androgen Enzalutamide (ENZ), suppressed CRPC cells especially ENZ-sensitive CRPC cells both in vitro and in vivo. Mechanically, we demonstrated that FL3 promoted trafficking of PHB1 from plasma membrane and mitochondria to nucleus, which in turn inhibited AR signaling as well as MAPK signaling, yet promoted apoptosis in CRPC cells. CONCLUSION Our data indicated that PHB1 is aberrantly upregulated in CRPC and is involved in castration resistance, as well as providing a novel rational approach for treating ENZ-sensitive CRPC.
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Affiliation(s)
- Junmei Liu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Ranran Zhang
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Pathology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Tong Su
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Pathology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Qianqian Zhou
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Pathology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Lin Gao
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Pathology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Zongyue He
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Pathology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xin Wang
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Pathology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Jian Zhao
- Department of Thoracic Surgery, Qilu Hospital of Shandong University, Jinan, China
| | - Yuanxin Xing
- Research Center of Basic Medicine, Jinan Central Hospital, Shandong First Medical University, Jinan, China
| | - Feifei Sun
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Pathology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Wenjie Cai
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Pathology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xinpei Wang
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Pathology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Jingying Han
- School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Ruixi Qin
- Department of Pathology, Qilu Hospital of Shandong University, Jinan, China
| | - Laurent Désaubry
- INSERM, UMR 1260, Regenerative Nanomedicine, University of Strasbourg, FMTS (Fédération de Médecine Translationnelle de L'Université de Strasbourg), Strasbourg, France
| | - Bo Han
- The Key Laboratory of Experimental Teratology, Ministry of Education and Department of Pathology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China.
- Department of Pathology, Qilu Hospital of Shandong University, Jinan, China.
| | - Weiwen Chen
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China.
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17
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Kumar R, Sena LA, Denmeade SR, Kachhap S. The testosterone paradox of advanced prostate cancer: mechanistic insights and clinical implications. Nat Rev Urol 2023; 20:265-278. [PMID: 36543976 PMCID: PMC10164147 DOI: 10.1038/s41585-022-00686-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/17/2022] [Indexed: 12/24/2022]
Abstract
The discovery of the benefits of castration for prostate cancer treatment in 1941 led to androgen deprivation therapy, which remains a mainstay of the treatment of men with advanced prostate cancer. However, as early as this original publication, the inevitable development of castration-resistant prostate cancer was recognized. Resistance first manifests as a sustained rise in the androgen-responsive gene, PSA, consistent with reactivation of the androgen receptor axis. Evaluation of clinical specimens demonstrates that castration-resistant prostate cancer cells remain addicted to androgen signalling and adapt to chronic low-testosterone states. Paradoxically, results of several studies have suggested that treatment with supraphysiological levels of testosterone can retard prostate cancer growth. Insights from these studies have been used to investigate administration of supraphysiological testosterone to patients with prostate cancer for clinical benefits, a strategy that is termed bipolar androgen therapy (BAT). BAT involves rapid cycling from supraphysiological back to near-castration testosterone levels over a 4-week cycle. Understanding how BAT works at the molecular and cellular levels might help to rationalize combining BAT with other agents to achieve increased efficacy and tumour responses.
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Affiliation(s)
- Rajendra Kumar
- The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, USA
| | - Laura A Sena
- The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, USA
| | - Samuel R Denmeade
- The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, USA
| | - Sushant Kachhap
- The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, USA.
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18
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Bhat TA, Dheeraj A, Nambiar DK, Singh SP, Yim DS, Singh RP. Decursin inhibits EGFR-ERK1/2 signaling axis in advanced human prostate carcinoma cells. Prostate 2023; 83:534-546. [PMID: 36597263 DOI: 10.1002/pros.24482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 10/23/2020] [Indexed: 01/05/2023]
Abstract
We have shown that decursin, a coumarin compound, induces cell cycle arrest and apoptosis in human prostate cancer cells (PCa); however, its molecular mechanisms are largely unexplored. We studied the mechanisms associated with its anticancer activity in advanced human prostate carcinoma cells. We found that decursin inhibited epidermal growth factor receptor (EGFR) signaling by inhibiting its activating phosphorylation at tyrosine 1068 residue in DU145 and 22Rv1 cells. This inhibition of EGFR was associated with the downregulation of ERK1/2 phosphorylation. Both EGFR and ERK1/2 are known to be deregulated/activated in many human malignancies. Consistent with our earlier study, decursin (25-100 µM) treatment for 24-72 h inhibited DU145 cell proliferation by 49%-87% (p < 0.001) which was associated with strong G1 phase arrest and cell death. It also decreased (p < 0.001) the number of surviving colonies. Decursin moderately increased the expression of Rb-related proteins p107 and p130 but decreased the levels of E2F family transcription factors including E2F-3, E2F-4 and E2F-5. Further, decursin strongly inhibited the growth of androgen-dependent prostate carcinoma 22Rv1 cells from 61% to 79% (p < 0.001) and arrested these cells at G1 phase via induction of cyclin-dependent kinase inhibitor p27/Kip1 and downregulation of CDK2 and CDK4 protein expression. Additionally, EGFR inhibitor erlotinib- and EGF ligand-modulated EGFR activation validated EGFR signaling as a target of decursin-mediated cell growth inhibition and cytotoxicity. Decursin decreased EGF ligand-induced phosphorylation of EGFR (Y-1068) as well as activation of its downstream mediator, ERK1/2. Furthermore, inhibitory targeting of EGFR-ERK1/2 axis by combinatorial treatment of decursin and erlotinib further sensitized DU145 cells for the decursin-induced growth inhibition and cell death. Overall, these findings strongly suggest that anticancer efficacy of decursin against human PCa involves inhibitory targeting of EGFR-ERK1/2 signaling axis, a pathway constitutively active in advanced PCa.
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Affiliation(s)
- Tariq A Bhat
- Cancer Biology Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi, India
| | - Arpit Dheeraj
- Cancer Biology Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi, India
| | - Dhanya K Nambiar
- Cancer Biology Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi, India
| | - Surya Pratap Singh
- Cancer Biology Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi, India
| | - Dong Sool Yim
- Department of Pharmacy, Sahmyook University, Seoul, Korea
| | - Rana P Singh
- Cancer Biology Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi, India
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19
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Yang G, Pan Q, Lu Y, Zhu J, Gou X. miR-29a-5p modulates ferroptosis by targeting ferritin heavy chain FTH1 in prostate cancer. Biochem Biophys Res Commun 2023; 652:6-13. [PMID: 36806086 DOI: 10.1016/j.bbrc.2023.02.030] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 02/10/2023] [Accepted: 02/13/2023] [Indexed: 02/17/2023]
Abstract
Ferroptosis is a kind of regulatory necrosis caused by phospholipid iron-dependent peroxidation. MiRNAs are known to play key roles in diverse biological functions. However, the molecular basis of miRNA-mediated ferroptosis in prostate cancer has not been fully stated. Here, with TCGA prostate cancer miRNA-seq data, we utilized Multivariate Cox regression analysis to prioritize potential miRNA and validated it in vitro and in vivo. We identified miR-29a-5p by TCGA prostate cancer miRNA-seq dataset. And we confirmed the expression of miR-29a-5p in prostate cancer cell lines. MiR-29a-5p knockdown reduced proliferation in PC-3 and LNCaP cells while increased Fe2+ and malondialdehyde (MDA) levels, the opposite phenomenon was observed with miR-29a-5p overexpression. Luciferase reporter assay showed an interaction between miR-29a-5p and Nrf2 downstream gene FTH1, subsequent rescue experiments also indirectly proved their direct effect. Finally, suppression of miR-29a-5p effectively inhibited tumor growth in vivo. These findings proved that the important role of miR-29a-5p in prostate cancer ferroptosis.
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Affiliation(s)
- Guang Yang
- Department of Urology Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, PR China; Central Laboratory, The First Affiliated Hospital of Chongqing Medical University, Chongqing, PR China
| | - Qi Pan
- Department of Dermatology, Chongqing Hospital of Traditional Chinese Medicine, Chongqing, PR China
| | - Yang Lu
- Department of Dermatology, Chongqing Hospital of Traditional Chinese Medicine, Chongqing, PR China
| | - Junlong Zhu
- Department of Urology Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, PR China; Central Laboratory, The First Affiliated Hospital of Chongqing Medical University, Chongqing, PR China
| | - Xin Gou
- Department of Urology Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, PR China.
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20
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Bui NN, Li CY, Wang LY, Chen YA, Kao WH, Chou LF, Hsieh JT, Lin H, Lai CH. Clostridium scindens metabolites trigger prostate cancer progression through androgen receptor signaling. JOURNAL OF MICROBIOLOGY, IMMUNOLOGY, AND INFECTION = WEI MIAN YU GAN RAN ZA ZHI 2023; 56:246-256. [PMID: 36639348 DOI: 10.1016/j.jmii.2022.12.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 11/21/2022] [Accepted: 12/24/2022] [Indexed: 01/04/2023]
Abstract
Prostate cancer (PCa) is one of the most common malignancies in men; recently, PCa-related mortality has increased worldwide. Although androgen deprivation therapy (ADT) is the standard treatment for PCa, patients often develop aggressive castration-resistant PCa (CRPC), indicating the presence of an alternative source of androgen. Clostridium scindens is a member of the gut microbiota and can convert cortisol to 11β-hydroxyandrostenedione (11β-OHA), which is a potent androgen precursor. However, the effect of C. scindens on PCa progression has not been determined. In this study, androgen-dependent PCa cells (LNCaP) were employed to investigate whether C. scindens-derived metabolites activate androgen receptor (AR), which is a pivotal step in the development of PCa. Results showed that cortisol metabolites derived from C. scindens-conditioned medium promoted proliferation and enhanced migration of PCa cells. Furthermore, cells treated with these metabolites presented activated AR and stimulated AR-regulated genes. These findings reveal that C. scindens has the potential to promote PCa progression via the activation of AR signaling. Further studies on the gut-prostate axis may help unravel an alternative source of androgen that triggers CRPC exacerbation.
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Affiliation(s)
- Ngoc-Niem Bui
- Graduate Institute of Biomedical Sciences, Department of Microbiology and Immunology, Department of Biochemistry, Chang Gung University, Taoyuan, Taiwan; Faculty of Medicine, Can Tho University of Medicine and Pharmacy, Can Tho, Viet Nam
| | - Chen-Yi Li
- Graduate Institute of Biomedical Sciences, Department of Microbiology and Immunology, Department of Biochemistry, Chang Gung University, Taoyuan, Taiwan
| | - Ling-Yu Wang
- Graduate Institute of Biomedical Sciences, Department of Microbiology and Immunology, Department of Biochemistry, Chang Gung University, Taoyuan, Taiwan
| | - Yu-An Chen
- Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan; Department of Urology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Wei-Hsiang Kao
- Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan; Department of Urology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Li-Fang Chou
- Graduate Institute of Biomedical Sciences, Department of Microbiology and Immunology, Department of Biochemistry, Chang Gung University, Taoyuan, Taiwan; Kidney Research Center, Chang Gung Memorial Hospital, Linkou, Taiwan
| | - Jer-Tsong Hsieh
- Department of Urology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Ho Lin
- Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan; Ph.D. Program in Translational Medicine, National Chung Hsing University, Taichung, Taiwan; Rong Hsing Research Center for Translational Medicine, National Chung Hsing University, Taichung, Taiwan
| | - Chih-Ho Lai
- Graduate Institute of Biomedical Sciences, Department of Microbiology and Immunology, Department of Biochemistry, Chang Gung University, Taoyuan, Taiwan; Department of Medical Research, School of Medicine, China Medical University and Hospital, Taichung, Taiwan; Department of Nursing, Asia University, Taichung, Taiwan; Molecular Infectious Disease Research Center, Department of Pediatrics, Chang Gung Memorial Hospital, Linkou, Taiwan.
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21
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Yaragani M, Yadlapalli P, Raghavan S, Giridhar T, Mandava VBR, Singh RV, Kottapalli RP, Chinnusamy S. Electronic effect-dependent intramolecular non-covalent interactions on the activity of 4,4-dimethylimidazolidin-2-one pharmacophore-based androgen receptor antagonists. Chem Biol Drug Des 2023; 101:614-625. [PMID: 36198102 DOI: 10.1111/cbdd.14151] [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: 05/06/2022] [Revised: 09/15/2022] [Accepted: 09/30/2022] [Indexed: 11/30/2022]
Abstract
Because androgen receptor (AR) signalling is important for the development and progression of prostate cancer (PC), AR antagonists are utilized in clinical practices to treat PC and are referred to as androgen deprivation therapy (ADT). However, continued administration of AR antagonists often results in the development of resistance, known as castration-resistant prostate cancer (CRPC). Despite castration, it has been demonstrated that AR signalling continues to be fundamental to tumour growth. In this regard, a series of readily synthesizable 4,4-dimethylimidazolidine-2-one pharmacophore-based AR antagonists (FAR01-FAR11) were designed and synthesized. Androgen-dependent LNCaP PC cell line was used to test the AR-antagonist activity of these compounds in vitro and compared with the U.S. Food and Drug Administration (FDA) approved second-generation enzalutamide. In our previous work, rigid thiohydantoin pharmacophore in enzalutamide is replaced by the flexible 4,4-dimethylimidazolidin-2-one. In order to improve the flexibility further, one methylene group is introduced between the pharmacophore and one of the aromatic ring. Despite the fact that the amide functional group is a crucial characteristic for building AR antagonists, this class of molecules lacks one. FAR06 has the exact same activity as enzalutamide (IC50 : 0.782 μM) with an IC50 value of 0.801 μM among the series of compounds.
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Affiliation(s)
- Muralikrishna Yaragani
- Department of Chemistry, Koneru Lakshmaiah Education Foundation, Guntur, Andhra Pradesh, India
| | | | - Sriram Raghavan
- CAS in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai, Tamil Nadu, India
| | - Thota Giridhar
- Sigma-Aldrich Chemicals Pvt. Ltd, Bangalure, Karnataka, India
| | | | | | | | - Saravanan Chinnusamy
- Center for Advanced Organic Materials (Sona-AROMA), Department of Chemistry, Sona College of Technology, Salem, Tamil Nadu, India
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22
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Gopalakrishnan S, Dhaware M, Sudharma AA, Mullapudi SV, Siginam SR, Gogulothu R, Mir IA, Ismail A. Chemopreventive Effect of Cinnamon and Its Bioactive Compounds in a Rat Model of Premalignant Prostate Carcinogenesis. Cancer Prev Res (Phila) 2023; 16:139-151. [PMID: 36517462 DOI: 10.1158/1940-6207.capr-22-0327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 10/21/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022]
Abstract
Cinnamon and its bioactive compounds inhibit prostate cancer cell proliferation in vitro. The aim of the current study was to assess the chemopreventive efficacy of cinnamon (CN) and its bioactive compounds in vivo using N-methyl-N-nitrosourea (MNU) and testosterone (T) to induce prostate carcinogenesis in male Wistar/National Institute of Nutrition rats. Cancer-induced (CI) rats (n = 10) developed prostatic hyperplasia and prostatic intraepithelial neoplasia. These histopathologic changes were diminished in CI rats fed for 4 months with diets supplemented with either CN (n = 20) or its bioactive compounds (cinnamaldehyde, n = 10 and procyanidin B2, n = 10). Androgen receptor (AR) expression was lower in the prostates of CI rats than in control, but the AR target gene, probasin, was robustly upregulated. Treatment of CI rats with CN or its bioactive compounds upregulated AR expression but inhibited the expression of the 5-alpha reductase genes (Srd5a1 and Srd5a2) and did not further increase probasin expression, suggesting blunted transcriptional activity of AR due to the limited availability of dihydrotestosterone. MNU+T induced an altered oxidant status in rat prostate, which was reflected by an increase in lipid peroxidation and DNA oxidation. These changes were completely or partially corrected by treatment with CN or the bioactive compounds. CN and its active components increased the activity of the apoptotic enzymes caspase-8 and caspase-3 in the prostates of CI rats. In conclusion, our data demonstrate that CN and its bioactive compounds have inhibitory effects on premalignant prostate lesions induced by MNU + T and, therefore, may be considered for the chemoprevention of prostate cancer. PREVENTION RELEVANCE The research work presented in this article demonstrates the chemopreventive efficacy of CN and its bioactive compounds in a rat model of premalignant prostate cancer.
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Affiliation(s)
- Srividya Gopalakrishnan
- Department of Endocrinology, ICMR-National Institute of Nutrition, Hyderabad, Telangana, India
| | - Mahamaya Dhaware
- Department of Endocrinology, ICMR-National Institute of Nutrition, Hyderabad, Telangana, India
| | | | | | | | - Ramesh Gogulothu
- Department of Endocrinology, ICMR-National Institute of Nutrition, Hyderabad, Telangana, India
| | - Irfan Ahmad Mir
- ICMR-National Animal Resource Facility for Biomedical Research, Hyderabad, Telangana, India
| | - Ayesha Ismail
- Department of Endocrinology, ICMR-National Institute of Nutrition, Hyderabad, Telangana, India
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23
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Emerging RNA-Based Therapeutic and Diagnostic Options: Recent Advances and Future Challenges in Genitourinary Cancers. Int J Mol Sci 2023; 24:ijms24054601. [PMID: 36902032 PMCID: PMC10003365 DOI: 10.3390/ijms24054601] [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: 12/01/2022] [Revised: 02/15/2023] [Accepted: 02/23/2023] [Indexed: 03/02/2023] Open
Abstract
Renal cell carcinoma, bladder cancer, and prostate cancer are the most widespread genitourinary tumors. Their treatment and diagnosis have significantly evolved over recent years, due to an increasing understanding of oncogenic factors and the molecular mechanisms involved. Using sophisticated genome sequencing technologies, the non-coding RNAs, such as microRNAs, long non-coding RNAs, and circular RNAs, have all been implicated in the occurrence and progression of genitourinary cancers. Interestingly, DNA, protein, and RNA interactions with lncRNAs and other biological macromolecules drive some of these cancer phenotypes. Studies on the molecular mechanisms of lncRNAs have identified new functional markers that could be potentially useful as biomarkers for effective diagnosis and/or as targets for therapeutic intervention. This review focuses on the mechanisms underlying abnormal lncRNA expression in genitourinary tumors and discusses their role in diagnostics, prognosis, and treatment.
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24
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Advances in Molecular Regulation of Prostate Cancer Cells by Top Natural Products of Malaysia. Curr Issues Mol Biol 2023; 45:1536-1567. [PMID: 36826044 PMCID: PMC9954984 DOI: 10.3390/cimb45020099] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 02/07/2023] [Accepted: 02/08/2023] [Indexed: 02/12/2023] Open
Abstract
Prostate cancer (PCa) remains both a global health burden and a scientific challenge. We present a review of the molecular targets driving current drug discovery to fight this disease. Moreover, the preventable nature of most PCa cases represents an opportunity for phytochemicals as chemopreventive when adequately integrated into nutritional interventions. With a renovated interest in natural remedies as a commodity and their essential role in cancer drug discovery, Malaysia is looking towards capitalizing on its mega biodiversity, which includes the oldest rainforest in the world and an estimated 1200 medicinal plants. We here explore whether the list of top Malay plants prioritized by the Malaysian government may fulfill the potential of becoming newer, sustainable sources of prostate cancer chemotherapy. These include Andrographis paniculate, Centella asiatica, Clinacanthus nutans, Eurycoma longifolia, Ficus deltoidea, Hibiscus sabdariffa, Marantodes pumilum (syn. Labisia pumila), Morinda citrifolia, Orthosiphon aristatus, and Phyllanthus niruri. Our review highlights the importance of resistance factors such as Smac/DIABLO in cancer progression, the role of the CXCL12/CXCR4 axis in cancer metastasis, and the regulation of PCa cells by some promising terpenes (andrographolide, Asiatic acid, rosmarinic acid), flavonoids (isovitexin, gossypin, sinensetin), and alkylresorcinols (labisiaquinones) among others.
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25
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Vasciaveo A, Arriaga JM, de Almeida FN, Zou M, Douglass EF, Picech F, Shibata M, Rodriguez-Calero A, de Brot S, Mitrofanova A, Chua CW, Karan C, Realubit R, Pampou S, Kim JY, Afari SN, Mukhammadov T, Zanella L, Corey E, Alvarez MJ, Rubin MA, Shen MM, Califano A, Abate-Shen C. OncoLoop: A Network-Based Precision Cancer Medicine Framework. Cancer Discov 2023; 13:386-409. [PMID: 36374194 PMCID: PMC9905319 DOI: 10.1158/2159-8290.cd-22-0342] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 08/22/2022] [Accepted: 11/10/2022] [Indexed: 11/16/2022]
Abstract
Prioritizing treatments for individual patients with cancer remains challenging, and performing coclinical studies using patient-derived models in real time is often unfeasible. To circumvent these challenges, we introduce OncoLoop, a precision medicine framework that predicts drug sensitivity in human tumors and their preexisting high-fidelity (cognate) model(s) by leveraging drug perturbation profiles. As a proof of concept, we applied OncoLoop to prostate cancer using genetically engineered mouse models (GEMM) that recapitulate a broad spectrum of disease states, including castration-resistant, metastatic, and neuroendocrine prostate cancer. Interrogation of human prostate cancer cohorts by Master Regulator (MR) conservation analysis revealed that most patients with advanced prostate cancer were represented by at least one cognate GEMM-derived tumor (GEMM-DT). Drugs predicted to invert MR activity in patients and their cognate GEMM-DTs were successfully validated in allograft, syngeneic, and patient-derived xenograft (PDX) models of tumors and metastasis. Furthermore, OncoLoop-predicted drugs enhanced the efficacy of clinically relevant drugs, namely, the PD-1 inhibitor nivolumab and the AR inhibitor enzalutamide. SIGNIFICANCE OncoLoop is a transcriptomic-based experimental and computational framework that can support rapid-turnaround coclinical studies to identify and validate drugs for individual patients, which can then be readily adapted to clinical practice. This framework should be applicable in many cancer contexts for which appropriate models and drug perturbation data are available. This article is highlighted in the In This Issue feature, p. 247.
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Affiliation(s)
- Alessandro Vasciaveo
- Department of Systems Biology, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, USA 10032
| | - Juan Martín Arriaga
- Department of Molecular Pharmacology and Therapeutics, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY USA 10032
| | - Francisca Nunes de Almeida
- Department of Molecular Pharmacology and Therapeutics, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY USA 10032
| | - Min Zou
- Department of Molecular Pharmacology and Therapeutics, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY USA 10032
| | - Eugene F. Douglass
- Department of Systems Biology, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, USA 10032
| | - Florencia Picech
- Department of Molecular Pharmacology and Therapeutics, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY USA 10032
| | - Maho Shibata
- Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, USA 10032
- Department of Genetics and Development, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY USA 10032
- Department of Urology, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY USA 10032
| | - Antonio Rodriguez-Calero
- Department for Biomedical Research, University of Bern, Bern, Switzerland 3008
- Institute of Pathology, University of Bern and Inselspital, Bern, Switzerland 3008
| | - Simone de Brot
- COMPATH, Institute of Animal Pathology, University of Bern, Switzerland 3012
| | - Antonina Mitrofanova
- Department of Systems Biology, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, USA 10032
| | - Chee Wai Chua
- Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, USA 10032
- Department of Genetics and Development, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY USA 10032
- Department of Urology, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY USA 10032
| | - Charles Karan
- Department of Systems Biology, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, USA 10032
- J.P. Sulzberger Columbia Genome Center, Columbia University Irving Medical Center, New York, NY USA 10032
| | - Ronald Realubit
- Department of Systems Biology, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, USA 10032
- J.P. Sulzberger Columbia Genome Center, Columbia University Irving Medical Center, New York, NY USA 10032
| | - Sergey Pampou
- Department of Systems Biology, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, USA 10032
- J.P. Sulzberger Columbia Genome Center, Columbia University Irving Medical Center, New York, NY USA 10032
| | - Jaime Y. Kim
- Department of Molecular Pharmacology and Therapeutics, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY USA 10032
| | - Stephanie N. Afari
- Department of Molecular Pharmacology and Therapeutics, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY USA 10032
| | - Timur Mukhammadov
- Department of Molecular Pharmacology and Therapeutics, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY USA 10032
| | - Luca Zanella
- Department of Systems Biology, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, USA 10032
| | - Eva Corey
- Department of Urology, University of Washington, Seattle, WA USA 98195
| | - Mariano J. Alvarez
- Department of Systems Biology, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, USA 10032
- DarwinHealth Inc, New York, NY
| | - Mark A. Rubin
- Department for Biomedical Research, University of Bern, Bern, Switzerland 3008
- Bern Center for Precision Medicine (BCPM) Bern, Switzerland 3008
| | - Michael M. Shen
- Department of Systems Biology, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, USA 10032
- Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, USA 10032
- Department of Genetics and Development, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY USA 10032
- Department of Urology, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY USA 10032
- Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, USA 10032
| | - Andrea Califano
- Department of Systems Biology, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, USA 10032
- Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, USA 10032
- J.P. Sulzberger Columbia Genome Center, Columbia University Irving Medical Center, New York, NY USA 10032
- Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, USA 10032
- Department of Biochemistry & Molecular Biophysics, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, USA 10032
- Department of Biomedical Informatics, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, USA 10032
| | - Cory Abate-Shen
- Department of Systems Biology, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, USA 10032
- Department of Molecular Pharmacology and Therapeutics, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY USA 10032
- Department of Medicine, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, USA 10032
- Department of Urology, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY USA 10032
- Herbert Irving Comprehensive Cancer Center, Columbia University Irving Medical Center, New York, USA 10032
- Department of Pathology and Cell Biology, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY USA 10032
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26
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Epigenetic mechanisms underlying subtype heterogeneity and tumor recurrence in prostate cancer. Nat Commun 2023; 14:567. [PMID: 36732329 PMCID: PMC9895058 DOI: 10.1038/s41467-023-36253-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 01/23/2023] [Indexed: 02/04/2023] Open
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27
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Dai T, Xu Z, Huang L, Wang Y, Zeng G, Ye M, Liu K, Zeng F, Jiang S, Han W, Cao J. A single-centre, open-label, single-arm, fixed-sequence pharmacokinetic study of SHR3680 on repaglinide and bupropion in prostate cancer patients. Br J Clin Pharmacol 2023; 89:874-886. [PMID: 36098470 PMCID: PMC10092624 DOI: 10.1111/bcp.15528] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 08/10/2022] [Accepted: 08/29/2022] [Indexed: 01/21/2023] Open
Abstract
To evaluate the pharmacokinetic effects of SHR3680 on repaglinide and bupropion and its metabolite hydroxybupropion. METHODS A single-centre, open-label, single-arm, fixed-sequence clinical trial in 18 patients with prostate cancer. RESULTS After a single oral dose of 0.5 mg repaglinide and SHR3680, geometric mean peak plasma concentration (Cmax ) of plasma repaglinide was 14.240 and 5.887 ng/mL, geometric mean area under the concentration-time curve (AUC0-t )was 20.577 and 7.320 h ng/mL, geometric mean AUC0-∞ was 20.949 and 7.451 h ng/mL, mean half-life (t1/2 ) was 1.629 and 1.195 hours, and geometric mean oral clearance (CL/F) was 23.867 and 67.107 L/h, respectively. After a single oral administration of 150 mg bupropion and SHR3680, geometric mean Cmax of plasma bupropion was 85.430 and 33.747 ng/mL, geometric mean AUC0-t was 1003.896 and 380.158 h ng/mL, geometric mean AUC0-∞ was 1038.054 and 401.387 h ng/mL, mean t1/2 was 22.533 and 17.733 hours, and geometric mean CL/F was 144.501 and 373.705 L/h, respectively. The plasma geometric mean Cmax of its main active metabolic hydroxybupropion was 268.113 and 177.318 ng/mL, geometric mean AUC0-t was 14 283.087 and 5420.219 h ng/mL, geometric mean AUC0-∞ was 15 218.158 and 5364.625 h ng/mL, mean t1/2 were 36.069 and 16.688 hours, and geometric mean CL/F was 8.623 L/h and 27.961 L/h, respectively. CONCLUSION Coadministration of SHR3680 with repaglinide or bupropion significantly shortened the elimination half-lives, significantly increased the apparent clearance rate, and significantly decreased the in vivo exposure of repaglinide, bupropion and hydroxybupropion compared with single administration of repaglinide or bupropion.
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Affiliation(s)
- Tao Dai
- Urology Surgery Department, Hunan Cancer Hospital/The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Zhenzhou Xu
- Urology Surgery Department, Hunan Cancer Hospital/The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Liang Huang
- Urology Surgery Department, Hunan Cancer Hospital/The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Yike Wang
- Department of Clinical Pharmacology, Jiangsu Hengrui Pharmaceuticals Co., Ltd., Shanghai, China
| | - Gongqian Zeng
- Urology Surgery Department, Hunan Cancer Hospital/The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Mingji Ye
- Urology Surgery Department, Hunan Cancer Hospital/The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Kan Liu
- Urology Surgery Department, Hunan Cancer Hospital/The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Fuhua Zeng
- Urology Surgery Department, Hunan Cancer Hospital/The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Shusuan Jiang
- Urology Surgery Department, Hunan Cancer Hospital/The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Weiqing Han
- Urology Surgery Department, Hunan Cancer Hospital/The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Jingying Cao
- Department of Medicine Clinical Laboratory, The Third Xiangya Hospital of Central South University, Changsha, China
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28
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He C, Liu W, Sun J, Zhang D, Li B. Jumonji domain-containing protein RIOX2 is overexpressed and associated with worse survival outcomes in prostate cancers. Front Oncol 2023; 13:1087082. [PMID: 36776320 PMCID: PMC9911806 DOI: 10.3389/fonc.2023.1087082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 01/09/2023] [Indexed: 01/28/2023] Open
Abstract
Background Histone demethylase RIOX2 was cloned as a c-Myc downstream gene involved in cell proliferation and has been implicated as an oncogenic factor in multiple tumor types. Its expression profiles and correlation with disease progression in prostate cancers are unknown. Methods Transcriptomic profiles of Jumanji domain-containing protein genes were assessed using multiple public expression datasets generated from RNA-seq and cDNA microarray assays. RIOX2 protein expression was assessed using an immunohistochemistry approach on a tissue section array from benign and malignant prostate tissues. Gene expression profiles were analyzed using the bioinformatics software R package. Western blot assay examined androgen stimulation on RIOX2 protein expression in LNCaP cells. Results Among 35 Jumanji domain-containing protein genes, 12 genes were significantly upregulated in prostate cancers compared to benign compartments. COX regression analysis identified that the ribosomal oxygenase 2 (RIOX2) gene was the only one significantly associated with disease-specific survival outcomes in prostate cancer patients. RIOX2 upregulation was confirmed at the protein levels using immunohistochemical assays on prostate cancer tissue sections. Meanwhile, RIOX2 upregulation was associated with clinicopathological features, including late-stage diseases, adverse Gleason scores, TP53 gene mutation, and disease-free status. In castration-resistant prostate cancers (CRPC), RIOX2 expression was positively correlated with AR signaling index but negatively correlated with the neuroendocrinal progression index. However, androgen treatment had no significant stimulatory effect on RIOX2 expression, indicating a parallel but not a causative effect of androgen signaling on RIOX2 gene expression. Further analysis discovered that RIOX2 expression was tightly correlated with its promoter hypomethylation and MYC gene expression, consistent with the notion that RIOX2 was a c-Myc target gene. Conclusion The Jumanji domain-containing protein RIOX2 was significantly overexpressed in prostate cancer, possibly due to c-Myc upregulation. RIOX2 upregulation was identified as an independent prognostic factor for disease-specific survival.
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Affiliation(s)
- Chenchen He
- Department of Radiation Oncology, The First Affiliated Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Wang Liu
- Department of Urology, The University of Kansas Medical Center, Kansas City, KS, United States
| | - Jiahao Sun
- Department of Radiation Oncology, The First Affiliated Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Da Zhang
- Department of Pathology & Laboratory Medicine, The University of Kansas Medical Center, Kansas City, KS, United States
| | - Benyi Li
- Department of Urology, The University of Kansas Medical Center, Kansas City, KS, United States,Department of Pathology & Laboratory Medicine, The University of Kansas Medical Center, Kansas City, KS, United States,*Correspondence: Benyi Li,
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Quinn Z, Leiby B, Sonpavde G, Choudhury AD, Sweeney C, Einstein D, Szmulewitz R, Sartor O, Knudsen K, Yang ESH, Kelly WK. Phase I Study of Niraparib in Combination with Radium-223 for the Treatment of Metastatic Castrate-Resistant Prostate Cancer. Clin Cancer Res 2023; 29:50-59. [PMID: 36321991 PMCID: PMC9812873 DOI: 10.1158/1078-0432.ccr-22-2526] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 10/04/2022] [Accepted: 10/31/2022] [Indexed: 11/05/2022]
Abstract
PURPOSE To identify the safety of niraparib, a PARP inhibitor, in combination with Radium-223 for the treatment of metastatic castrate-resistant prostate cancer (mCRPC) in men without known BRCA mutations. PATIENTS AND METHODS Men with progressive mCPRC following ≥1 line of androgen receptor (AR)-targeted therapy and bone metastases but no documented BRCA-1 or BRCA-2 alterations or bulky visceral disease were included. Niraparib dose was escalated in combination with standard dosing of Radium-223 using a time-to-event continual reassessment method. The highest dose level with a DLT probability <20% was defined as MTD. Secondary endpoints included PSA change and progression-free survival. Exploratory analyses included assessing DNA mutations found in ctDNA as well as gene expression changes assessed in whole blood samples. RESULTS Thirty patients were treated with niraparib and radium-223: 13 patients received 100 mg, 12 received 200 mg, and 5 patients received 300 mg of niraparib. There were six DLT events: two (13%) for neutropenia, two (13%) for thrombocytopenia, whereas fatigue and nausea each occurred once (3%). Anemia (2/13%) and neutropenia (2/13%) were the most common grade 3 adverse events. For patients with prior chemotherapy exposure, the MTD was 100 mg, whereas the MTD for chemotherapy naïve patients was 200 mg. Whole blood gene expression of PAX5 and CD19 was higher in responders and ARG-1, IL2R, and FLT3 expression was higher in nonresponders. CONCLUSIONS Combining niraparib with Radium-223 in patients with mCRPC was safe; however, further studies incorporating biomarkers will better elucidate the role of combinations of PARP inhibitors with DNA damaging and other agents.
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Affiliation(s)
- Zachary Quinn
- Thomas Jefferson University, Sidney Kimmel Cancer Center, Philadelphia PA
| | - Benjamin Leiby
- Thomas Jefferson University, Sidney Kimmel Cancer Center, Philadelphia PA
| | - Guru Sonpavde
- Lank Center for Genitourinary Oncology, Dana Farber Cancer Institute, Boston MA
| | - Atish D Choudhury
- Lank Center for Genitourinary Oncology, Dana Farber Cancer Institute, Boston MA
| | - Christopher Sweeney
- Lank Center for Genitourinary Oncology, Dana Farber Cancer Institute, Boston MA
| | | | | | - Oliver Sartor
- Tulane University School of Medicine, Tulane Cancer Center, New Orleans, LA
| | - Karen Knudsen
- Thomas Jefferson University, Sidney Kimmel Cancer Center, Philadelphia PA
| | - Eddy Shih-Hsin Yang
- University of Alabama at Birmingham, O’Neal Comprehensive Cancer Center, Birmingham, AL
| | - Wm. Kevin Kelly
- Thomas Jefferson University, Sidney Kimmel Cancer Center, Philadelphia PA
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30
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Ha S, Luo G, Xiang H. A Comprehensive Overview of Small-Molecule Androgen Receptor Degraders: Recent Progress and Future Perspectives. J Med Chem 2022; 65:16128-16154. [PMID: 36459083 DOI: 10.1021/acs.jmedchem.2c01487] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Prostate cancer (PC), the second most prevalent malignancy in men worldwide, has been proven to depend on the aberrant activation of androgen receptor (AR) signaling. Long-term androgen deprivation for the treatment of PC inevitably leads to castration-resistant prostate cancer (CRPC) in which AR remains a crucial oncogenic driver. Thus, there is an urgent need to develop new strategies to address this unmet medical need. Targeting AR for degradation has recently been in a vigorous development stage, and accumulating clinical studies have highlighted the benefits of AR degraders in CRPC patients. Herein, we provide a comprehensive summary of small-molecule AR degraders with diverse mechanisms of action including proteolysis-targeting chimeras (PROTACs), selective AR degraders (SARDs), hydrophobic tags (HyT), and other AR degraders with distinct mechanisms. Accordingly, their structure-activity relationships, biomedical applications, and therapeutic values are also dissected to provide insights into the future development of promising AR degradation-based therapeutics for CRPC.
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Affiliation(s)
- Si Ha
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 211198, P. R. China
| | - Guoshun Luo
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 211198, P. R. China
| | - Hua Xiang
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 211198, P. R. China
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31
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Sena LA, Kumar R, Sanin DE, Thompson EA, Rosen DM, Dalrymple SL, Antony L, Yang Y, Gomes-Alexandre C, Hicks JL, Jones T, Bowers KA, Eskra JN, Meyers J, Gupta A, Skaist A, Yegnasubramanian S, Luo J, Brennen WN, Kachhap SK, Antonarakis ES, De Marzo AM, Isaacs JT, Markowski MC, Denmeade SR. Androgen receptor activity in prostate cancer dictates efficacy of bipolar androgen therapy through MYC. J Clin Invest 2022; 132:e162396. [PMID: 36194476 PMCID: PMC9711876 DOI: 10.1172/jci162396] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 09/29/2022] [Indexed: 11/17/2022] Open
Abstract
Testosterone is the canonical growth factor of prostate cancer but can paradoxically suppress its growth when present at supraphysiological levels. We have previously demonstrated that the cyclical administration of supraphysiological androgen (SPA), termed bipolar androgen therapy (BAT), can result in tumor regression and clinical benefit for patients with castration-resistant prostate cancer. However, predictors and mechanisms of response and resistance have been ill defined. Here, we show that growth inhibition of prostate cancer models by SPA required high androgen receptor (AR) activity and were driven in part by downregulation of MYC. Using matched sequential patient biopsies, we show that high pretreatment AR activity predicted downregulation of MYC, improved clinical response, and prolonged progression-free and overall survival for patients on BAT. BAT induced strong downregulation of AR in all patients, which is shown to be a primary mechanism of acquired resistance to SPA. Acquired resistance was overcome by alternating SPA with the AR inhibitor enzalutamide, which induced adaptive upregulation of AR and resensitized prostate cancer to SPA. This work identifies high AR activity as a predictive biomarker of response to BAT and supports a treatment paradigm for prostate cancer involving alternating between AR inhibition and activation.
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32
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Nano drug delivery systems for antisense oligonucleotides (ASO) therapeutics. J Control Release 2022; 352:861-878. [PMID: 36397636 DOI: 10.1016/j.jconrel.2022.10.050] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 09/02/2022] [Accepted: 10/25/2022] [Indexed: 11/16/2022]
Abstract
Cancer, infectious diseases, and metabolic and hereditary genetic disorders are a global health burden affecting millions of people, with contemporary treatments offering limited relief. Antisense technology treats diseases by targeting their causal agents using its ability to alter or inhibit endogenous or malfunctioning genes. Nine antisense oligonucleotide (ASO) drugs that represent four different chemical classes have been approved for the treatment of rare diseases, including nusinersen, the first new oligonucleotide-based drug. Advances in medicinal chemistry, understanding the molecular pathways, and the availability of vast genetic data have resulted in enormous improvements in the therapeutic performance of ASO drugs; however, their susceptibility to degradation in the circulation, rapid renal clearance, and immunostimulatory adverse effects greatly limit their clinical applications. An increasing number of ASO-based therapeutics is being tested in clinical trials. Improvements to the delivery of ASO drugs could potentially change the therapeutic landscape for many conditions in the near future. This review describes the technological advances and developments in drug delivery systems pertaining to ASO therapeutics.
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33
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A Retrospective Comparative Study of Sodium Fluoride Na 18F-PET/CT and 68Ga-PSMA-11 PET/CT in the Bone Metastases of Prostate Cancer Using a Volumetric 3-D Radiomic Analysis. Life (Basel) 2022; 12:life12121977. [PMID: 36556342 PMCID: PMC9788581 DOI: 10.3390/life12121977] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/18/2022] [Accepted: 11/23/2022] [Indexed: 11/29/2022] Open
Abstract
Bone is the most common metastatic site in prostate cancer (PCa). 68Ga-PSMA-11 (or gozetotide) and sodium fluoride-18 (Na18F) are rather new radiopharmaceuticals for assessing PCa-associated bone metastases. Gozetotide uptake reflects cell membrane enzyme activity and the sodium fluoride uptake measures bone mineralization in advanced PCa. Here, we aim to characterize this difference and possibly provide a new method for patient selection in targeted therapies. Methods: The study consisted of 14 patients with advanced PCa (M group > 5 lesions), who had had routine PET/CT both with PSMA and NaF over consecutive days, and 12 PCa patients with no skeletal metastases (N). The bone regions in CT were used to coregister the two PET/CT scans. The whole skeleton volume(s) of interest (VOIs) were defined using the CT component of PET (HU > 150); similarly, the sclerotic/dense bone was defined as HU > 600. Additional VOIs were defined for PET, with pathological threshold values for PSMA (SUV > 3.0) and NaF (SUV > 10). Besides the pathological bone volumes measured with each technique (CT, NaF, and PSMA-PET) and their contemporaneous combinations, overlapping VOIs with the CT-based skeletal and sclerotic volumes were also recorded. Additionally, thresholds of 4.0, 6.0, and 10.0 were tested for SUVPSMA. Results: In group M, the skeletal VOI volumes were 8.77 ± 1.80 L, and the sclerotic bone volumes were 1.32 ± 0.50 L; in contrast, in group N, they were 8.73 ± 1.43 L (skeletal) and 1.23 ± 0.28 L (sclerosis). The total enzyme activity for PSMA was 2.21 ± 5.15 in the M group and 0.078 ± 0.053 in the N group (p < 0.0002). The total bone demineralization activity for NaF varied from 4.31 ± 6.17 in the M group and 0.24 ± 0.56 in group N (p < 0.0002). The pathological PSMA volume represented 0.44−132% of the sclerotic bone volume in group M and 0.55−2.3% in group N. The pathological NaF volume in those patients with multiple metastases represented 0.27−68% of the sclerotic bone volume, and in the control group, only 0.00−6.5% of the sclerotic bone volume (p < 0.0003). Conclusions: These results confirm our earlier findings that CT alone does not suit the evaluation of the extent of active skeletal metastases in PCa. PSMA and NaF images give complementary information about the extent of the active skeletal disease, which has a clinical impact and may change its management. The PSMA and NaF absolute volumes could be used for planning targeted therapies. A cut-off value 3.0 for SUVPSMA given here is the best correlation in the presentation of active metastatic skeletal disease.
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34
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Xie J, He H, Kong W, Li Z, Gao Z, Xie D, Sun L, Fan X, Jiang X, Zheng Q, Li G, Zhu J, Zhu G. Targeting androgen receptor phase separation to overcome antiandrogen resistance. Nat Chem Biol 2022; 18:1341-1350. [PMID: 36229685 DOI: 10.1038/s41589-022-01151-y] [Citation(s) in RCA: 47] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 08/25/2022] [Indexed: 11/09/2022]
Abstract
Patients with castration-resistant prostate cancer inevitably acquire resistance to antiandrogen therapies in part because of androgen receptor (AR) mutations or splice variants enabling restored AR signaling. Here we show that ligand-activated AR can form transcriptionally active condensates. Both structured and unstructured regions of AR contribute to the effective phase separation of AR and disordered N-terminal domain plays a predominant role. AR liquid-liquid phase separation behaviors faithfully report transcriptional activity and antiandrogen efficacy. Antiandrogens can promote phase separation and transcriptional activity of AR-resistant mutants in a ligand-independent manner. We conducted a phase-separation-based phenotypic screen and identified ET516 that specifically disrupts AR condensates, effectively suppresses AR transcriptional activity and inhibits the proliferation and tumor growth of prostate cancer cells expressing AR-resistant mutants. Our results demonstrate liquid-liquid phase separation as an emerging mechanism underlying drug resistance and show that targeting phase separation may provide a feasible approach for drug discovery.
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Affiliation(s)
- Jingjing Xie
- Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China.,Etern Biopharma, Shanghai, China
| | - Hao He
- Etern Biopharma, Shanghai, China
| | - Wenna Kong
- Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China.,Etern Biopharma, Shanghai, China
| | - Ziwen Li
- Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China
| | | | | | - Lin Sun
- Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China.,Etern Biopharma, Shanghai, China
| | | | | | | | - Guo Li
- Etern Biopharma, Shanghai, China
| | | | - Guangya Zhu
- Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China. .,Lingang Laboratory, Shanghai, China.
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35
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Wang A, Luo X, Wang Y, Meng X, Lu Z, Yang Y. Design, Synthesis, and Biological Evaluation of Androgen Receptor Degrading and Antagonizing Bifunctional Steroidal Analogs for the Treatment of Advanced Prostate Cancer. J Med Chem 2022; 65:12460-12481. [PMID: 36070471 DOI: 10.1021/acs.jmedchem.2c01164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Metastatic castration-resistant prostate cancer (mCRPC) with high mortality has seriously threatened men's health. Bifunctional agents simultaneously degrade and antagonize androgen receptor (AR), display robust AR signaling pathway blockade, and show the therapeutic prospect for mCRPC. Herein, systemic structural modifications on the C-3, C-6, and C-17 positions of galeterone led to the discovery of 67-b with the dual functions of AR antagonism and degradation. In vitro, 67-b exhibited excellent antiproliferative activity and potent AR degradation activity in different PCa cells (LNCaP and 22RV1), as well as outstanding antagonistic activity against wild-type and mutant (W741L, T877A, and F876L) ARs. In vivo, 67-b effectively inhibited the growth of hormone-sensitive organs in the Hershberger assay and exhibited tumor regression in the enzalutamide-resistant (c4-2b-ENZ) xenograft model. These results confirmed 67-b to be a promising AR degrader and antagonist for the treatment of mCRPC patients.
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Affiliation(s)
- Ao Wang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.,School of Pharmacy, University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China
| | - Xianggang Luo
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.,School of Pharmacy, University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China
| | - Yawan Wang
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, 138 Xianlin Avenue, Nanjing 210023, China
| | - Xin Meng
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Zhengyu Lu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.,School of Pharmacy, University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China
| | - Yushe Yang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China.,School of Pharmacy, University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China
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Marchioni M, Marandino L, Amparore D, Berardinelli F, Matteo F, Campi R, Schips L, Mascitti M. Factors influencing survival in metastatic castration resistant prostate cancer therapy. Expert Rev Anticancer Ther 2022; 22:1061-1079. [PMID: 35982645 DOI: 10.1080/14737140.2022.2114458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION The number of patients with metastatic castration resistant prostate cancer (mCRPC) is expecting to increase due to the long-life expectancy of those with advanced disease who are also more commonly diagnosed today because of stage migration. Several compounds are available for treating these patients. AREAS COVERED We reviewed currently available treatments for mCRPC, their mechanism of action and resistance and we explored possible predictors of treatment success useful to predict survival in mCRPC patients. EXPERT OPINION A combination of molecular, clinical, pathological, and imaging features is necessary to correctly estimate patients' risk of death. The combination of these biomarkers may allow clinicians to tailor treatments based on cancer history and patients' features. The search of predictive biomarkers remains an unmet medical need for most patients with mCRPC.
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Affiliation(s)
- Michele Marchioni
- Unit of Urology, Department of Medical, Oral and Biotechnological Sciences, SS. Annunziata Hospital, G. D'Annunzio University, Chieti, Italy
| | - Laura Marandino
- Division of Experimental Oncology, Urological Research Institute, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Daniele Amparore
- Department of Urology, San Luigi Gonzaga Hospital, University of Turin, Orbassano, Turin, Italy
| | - Francesco Berardinelli
- Unit of Urology, Department of Medical, Oral and Biotechnological Sciences, SS. Annunziata Hospital, G. D'Annunzio University, Chieti, Italy
| | - Ferro Matteo
- Division of Urology, European Institute of Oncology, IRCCS, Milan, Italy
| | - Riccardo Campi
- Unit of Urological Robotic Surgery and Renal Transplantation, University of Florence, Careggi Hospital, Florence, Italy
| | - Luigi Schips
- Unit of Urology, Department of Medical, Oral and Biotechnological Sciences, SS. Annunziata Hospital, G. D'Annunzio University, Chieti, Italy
| | - Marco Mascitti
- Unit of Urology, Department of Medical, Oral and Biotechnological Sciences, SS. Annunziata Hospital, G. D'Annunzio University, Chieti, Italy
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Chen Y, Zhou Q, Hankey W, Fang X, Yuan F. Second generation androgen receptor antagonists and challenges in prostate cancer treatment. Cell Death Dis 2022; 13:632. [PMID: 35864113 PMCID: PMC9304354 DOI: 10.1038/s41419-022-05084-1] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 07/05/2022] [Accepted: 07/07/2022] [Indexed: 01/21/2023]
Abstract
Prostate cancer is a hormone-dependent malignancy, whose onset and progression are closely related to the activity of the androgen receptor (AR) signaling pathway. Due to this critical role of AR signaling in driving prostate cancer, therapy targeting the AR pathway has been the mainstay strategy for metastatic prostate cancer treatment. The utility of these agents has expanded with the emergence of second-generation AR antagonists, which began with the approval of enzalutamide in 2012 by the United States Food and Drug Administration (FDA). Together with apalutamide and darolutamide, which were approved in 2018 and 2019, respectively, these agents have improved the survival of patients with prostate cancer, with applications for both androgen-dependent and castration-resistant disease. While patients receiving these drugs receive a benefit in the form of prolonged survival, they are not cured and ultimately progress to lethal neuroendocrine prostate cancer (NEPC). Here we summarize the current state of AR antagonist development and highlight the emerging challenges of their clinical application and the potential resistance mechanisms, which might be addressed by combination therapies or the development of novel AR-targeted therapies.
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Affiliation(s)
- Yanhua Chen
- grid.412540.60000 0001 2372 7462Academy of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, 201203 Shanghai, China
| | - Qianqian Zhou
- grid.412540.60000 0001 2372 7462Academy of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, 201203 Shanghai, China
| | - William Hankey
- grid.10698.360000000122483208Department of Genetics, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599 USA
| | - Xiaosheng Fang
- grid.460018.b0000 0004 1769 9639Department of Hematology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, 271000 Jinan, Shandong China
| | - Fuwen Yuan
- grid.412540.60000 0001 2372 7462Academy of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, 201203 Shanghai, China
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39
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Huang J, Lin B, Li B. Anti-Androgen Receptor Therapies in Prostate Cancer: A Brief Update and Perspective. Front Oncol 2022; 12:865350. [PMID: 35372068 PMCID: PMC8965587 DOI: 10.3389/fonc.2022.865350] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Accepted: 02/17/2022] [Indexed: 12/28/2022] Open
Abstract
Prostate cancer is a major health issue in western countries and is the second leading cause of cancer death in American men. Prostate cancer depends on the androgen receptor (AR), a transcriptional factor critical for prostate cancer growth and progression. Castration by surgery or medical treatment reduces androgen levels, resulting in prostatic atrophy and prostate cancer regression. Thus, metastatic prostate cancers are initially managed with androgen deprivation therapy. Unfortunately, prostate cancers rapidly relapse after castration therapy and progress to a disease stage called castration-resistant prostate cancer (CRPC). Currently, clinical treatment for CRPCs is focused on suppressing AR activity with antagonists like Enzalutamide or by reducing androgen production with Abiraterone. In clinical practice, these treatments fail to yield a curative benefit in CRPC patients in part due to AR gene mutations or splicing variations, resulting in AR reactivation. It is conceivable that eliminating the AR protein in prostate cancer cells is a promising solution to provide a potential curative outcome. Multiple strategies have emerged, and several potent agents that reduce AR protein levels were reported to eliminate xenograft tumor growth in preclinical models via distinct mechanisms, including proteasome-mediated degradation, heat-shock protein inhibition, AR splicing suppression, blockage of AR nuclear localization, AR N-terminal suppression. A few small chemical compounds are undergoing clinical trials combined with existing AR antagonists. AR protein elimination by enhanced protein or mRNA degradation is a realistic solution for avoiding AR reactivation during androgen deprivation therapy in prostate cancers.
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Affiliation(s)
- Jian Huang
- Pathological Diagnosis and Research Center, The Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Biyun Lin
- Pathological Diagnosis and Research Center, The Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Benyi Li
- Department of Urology, The University of Kansas Medical Center, Kansas City, KS, United States
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40
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Monaghan AE, Porter A, Hunter I, Morrison A, McElroy SP, McEwan IJ. Development of a High-Throughput Screening Assay for Small-Molecule Inhibitors of Androgen Receptor Splice Variants. Assay Drug Dev Technol 2022; 20:111-124. [PMID: 35333596 PMCID: PMC9057896 DOI: 10.1089/adt.2021.128] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
The role of the androgen receptor (AR) in the progression of prostate cancer (PCa) is well established and competitive inhibition of AR ligand binding domain (LBD) has been the mainstay of antiandrogen therapies for advanced and metastatic disease. However, the efficacy of such drugs is often limited by the emergence of resistance, mediated through point mutations and receptor splice variants lacking the AR-LBD. As a result, the prognosis for patients with malignant, castrate-resistant disease remains poor. The amino terminal domain (NTD) of the AR has been shown to be critical for AR function. Its modular activation function (AF-1) is important for both gene regulation and participation in protein–protein interactions. However, due to the intrinsically disordered structure of the domain, its potential as a candidate for therapeutic intervention has been generally overlooked. In this article, we describe the design and development of a functional cell-based assay aimed at identifying small-molecule inhibitors of the AR-NTD. We demonstrate the suitability of the assay for high-throughput screening platforms and validate two initial hits emerging from a small, targeted, library screen in PCa cells.
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Affiliation(s)
- Amy E. Monaghan
- Institute of Medical Sciences, School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen, United Kingdom
| | - Alison Porter
- European Screening Centre (ESC), University of Dundee, Lanarkshire, United Kingdom
| | - Irene. Hunter
- Institute of Medical Sciences, School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen, United Kingdom
| | - Angus Morrison
- European Screening Centre (ESC), University of Dundee, Lanarkshire, United Kingdom
| | - Stuart P. McElroy
- European Screening Centre (ESC), University of Dundee, Lanarkshire, United Kingdom
| | - Iain J. McEwan
- Institute of Medical Sciences, School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen, United Kingdom
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Comprehensive genomics in androgen receptor-dependent castration-resistant prostate cancer identifies an adaptation pathway mediated by opioid receptor kappa 1. Commun Biol 2022; 5:299. [PMID: 35365763 PMCID: PMC8976065 DOI: 10.1038/s42003-022-03227-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 03/03/2022] [Indexed: 12/04/2022] Open
Abstract
Castration resistance is a lethal form of treatment failure of prostate cancer (PCa) and is associated with ligand-independent activation of the androgen receptor (AR). It is only partially understood how the AR mediates survival and castration-resistant growth of PCa upon androgen deprivation. We investigated integrative genomics using a patient-derived xenograft model recapitulating acquired, AR-dependent castration-resistant PCa (CRPC). Sequencing of chromatin immunoprecipitation using an anti-AR antibody (AR-ChIP seq) revealed distinct profiles of AR binding site (ARBS) in androgen-dependent and castration-resistant xenograft tumors compared with those previously reported based on human PCa cells or tumor tissues. An integrative genetic analysis identified several AR-target genes associated with CRPC progression including OPRK1, which harbors ARBS and was upregulated upon androgen deprivation. Loss of function of OPRK1 retarded the acquisition of castration resistance and inhibited castration-resistant growth of PCa both in vitro and in vivo. Immunohistochemical analysis showed that expression of OPRK1, a G protein-coupled receptor, was upregulated in human prostate cancer tissues after preoperative androgen derivation or CRPC progression. These data suggest that OPRK1 is involved in post-castration survival and cellular adaptation process toward castration-resistant progression of PCa, accelerating the clinical implementation of ORPK1-targeting therapy in the management of this lethal disease. Through comparative genomics using PDX models of androgen-dependent (AD) and androgen-resistant (AR) tumors, Makino et al. identify opioid receptor kappa 1 (OPRK1) as being associated with castration-resistance. Loss of OPRK1 function delays castration-resistance and inhibits castration-resistant growth of prostate cancer cells in culture and in vivo, suggesting OPRK1 as a therapeutic target.
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Zhou T, Wang S, Song X, Liu W, Dong F, Huo Y, Zou R, Wang C, Zhang S, Liu W, Sun G, Lin L, Zeng K, Dong X, Guo Q, Yi F, Wang Z, Li X, Jiang B, Cao L, Zhao Y. RNF8 up-regulates AR/ARV7 action to contribute to advanced prostate cancer progression. Cell Death Dis 2022; 13:352. [PMID: 35428760 PMCID: PMC9012884 DOI: 10.1038/s41419-022-04787-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 03/02/2022] [Accepted: 03/21/2022] [Indexed: 12/27/2022]
Abstract
Androgen receptor (AR) signaling drives prostate cancer (PC) progression. Androgen deprivation therapy (ADT) is temporally effective, whereas drug resistance inevitably develops. Abnormal expression of AR/ARV7 (the most common AR splicing variant) is critical for endocrine resistance, while the detailed mechanism is still elusive. In this study, bioinformatics and immunohistochemical analyses demonstrate that RNF8 is high expressed in PC and castration-resistant PC (CRPC) samples and the expression of RNF8 is positively correlated with the Gleason score. The high expression of RNF8 in PCs predicts a poor prognosis. These results provide a potential function of RNF8 in PC progression. Furthermore, the mRNA expression of RNF8 is positively correlated with that of AR in PC. Mechanistically, we find that RNF8 upregulates c-Myc-induced AR transcription via altering histone modifications at the c-Myc binding site within the AR gene. RNF8 also acts as a co-activator of AR, promoting the recruitment of AR/ARV7 to the KLK3 (PSA) promoter, where RNF8 modulates histone modifications. These functions of RNF8 are dependent on its E3 ligase activity. RNF8 knockdown further reduces AR transactivation and PSA expression in CRPC cells with enzalutamide treatment. RNF8 depletion restrains cell proliferation and alleviates enzalutamide resistance in CRPC cells. Our findings indicate that RNF8 may be a potential therapeutic target for endocrine resistance in PC.
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Qin X, Ji D, Gu W, Han W, Luo H, Du C, Zou Q, Sun Z, He C, Zhu S, Chong T, Yao X, Wan B, Yang X, Bai A, Jin C, Zou J, Ye D. Activity and safety of SHR3680, a novel antiandrogen, in patients with metastatic castration-resistant prostate cancer: a phase I/II trial. BMC Med 2022; 20:84. [PMID: 35241087 PMCID: PMC8895828 DOI: 10.1186/s12916-022-02263-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 01/18/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Antagonizing the androgen-receptor (AR) pathway is an effective treatment strategy for patients with metastatic castration-resistant prostate cancer (CRPC). Here, we report the results of a first-in-human phase 1/2 study which assessed the safety, pharmacokinetics, and activity of SHR3680 (a novel AR antagonist) in patients with metastatic CRPC. METHODS This phase 1/2 study enrolled patients with progressive metastatic CRPC who had not been previously treated with novel AR-targeted agents. In the phase 1 dose-escalation portion, patients received oral SHR3680 at a starting daily dose of 40 mg, which was subsequently escalated to 80 mg, 160 mg, 240 mg, 360 mg, and 480 mg per day. In phase 2 dose-expansion portion, patients were randomized to receive daily dose of 80 mg, 160 mg, or 240 mg of SHR3680. The primary endpoint in phase 1 was safety and tolerability and in phase 2 was the proportion of patients with a prostate-specific antigen (PSA) response (≥ 50% decrease of PSA level) at week 12. RESULTS A total of 197 eligible patients were enrolled and received SHR3680 treatment, including 18 patients in phase 1 and 179 patients in phase 2. No dose-limiting toxicities were reported and the maximum tolerated dose was not reached. Treatment-related adverse events (TRAEs) occurred in 116 (58.9%) patients, with the most common one being proteinuria (13.7%). TRAEs of grade ≥ 3 occurred in only 23 (11.7%) patients, and no treatment-related deaths occurred. Antitumor activities were evident at all doses, including PSA response at week 12 in 134 (68.0%; 95% CI, 61.0-74.5) patients, stabilized bone disease at week 12 in 174 (88.3%; 95% CI, 87.2-95.5) patients, and responses in soft tissue lesions in 21 (34.4%, 95% CI, 22.7-47.7) of 61 patients. CONCLUSION SHR3680 was well tolerated and safe, with promising anti-tumor activity across all doses tested in patients with metastatic CRPC. The dose of 240 mg daily was recommended for further phase 3 study. TRIAL REGISTRATION Clinical trials.gov NCT02691975; registered February 25, 2016.
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Affiliation(s)
- Xiaojian Qin
- Department of Urology, Fudan University Shanghai Cancer Center, 270 Dong'an Road, Shanghai, 200032, China
| | - Dongmei Ji
- Department of Medical Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Weijie Gu
- Department of Urology, Fudan University Shanghai Cancer Center, 270 Dong'an Road, Shanghai, 200032, China
| | - Weiqing Han
- Department of Urology, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Hunan Cancer Center, Changsha, China
| | - Hong Luo
- Department of Urology, Chongqing University Cancer Hospital, Chongqing Cancer Hospital, Chongqing, China
| | - Chuanjun Du
- Department of Urology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Qing Zou
- Department of Urology, Jiangsu Cancer Hospital, Nanjing, China
| | - Zhongquan Sun
- Department of Urology, Huadong Hospital Affiliated to Fudan University, Shanghai, China
| | - Chaohong He
- Department of Urology, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, China
| | - Shaoxing Zhu
- Department of Urology, Zhejiang Cancer Hospital, Hangzhou, China
| | - Tie Chong
- Department of Urology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Xin Yao
- Department of Urology, Tianjin Medical University Cancer Institute & Hospital, Tianjin, China
| | - Ben Wan
- Departmeint of Urology, Beijing Hospital, Beijing, China
| | - Xinfeng Yang
- Department of Clinical Development, Jiangsu Hengrui Pharmaceuticals Co., Ltd., Shanghai, China
| | - Aobing Bai
- Department of Clinical Development, Jiangsu Hengrui Pharmaceuticals Co., Ltd., Shanghai, China
| | - Chunlei Jin
- Department of Clinical Development, Jiangsu Hengrui Pharmaceuticals Co., Ltd., Shanghai, China
| | - Jianjun Zou
- Department of Clinical Development, Jiangsu Hengrui Pharmaceuticals Co., Ltd., Shanghai, China
| | - Dingwei Ye
- Department of Urology, Fudan University Shanghai Cancer Center, 270 Dong'an Road, Shanghai, 200032, China.
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Zhao JL, Fizazi K, Saad F, Chi KN, Taplin ME, Sternberg CN, Armstrong AJ, de Bono JS, Duggan WT, Scher HI. The Effect of Corticosteroids on Prostate Cancer Outcome Following Treatment with Enzalutamide: A Multivariate Analysis of the Phase III AFFIRM Trial. Clin Cancer Res 2022; 28:860-869. [PMID: 34965947 PMCID: PMC9366341 DOI: 10.1158/1078-0432.ccr-21-1090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 10/20/2021] [Accepted: 12/21/2021] [Indexed: 01/07/2023]
Abstract
PURPOSE The clinical impact of concurrent corticosteroid use (CCU) on enzalutamide-treated patients with metastatic castration-resistant prostate cancer (mCRPC) is unknown. We investigated the association of CCU with overall survival (OS), radiographic progression-free survival (rPFS), and time to prostate-specific antigen progression (TTPP) in post-chemotherapy, enzalutamide-treated patients with mCRPC. PATIENTS AND METHODS Post hoc analysis of AFFIRM (NCT00974311) with patients (n = 1,199) randomized 2:1 to enzalutamide 160 mg/day or placebo. Treatment group, CCU, and known prognostic factors were evaluated for impact on OS, rPFS, and TTPP using a multivariate Cox proportional hazards model. CCU was defined as "baseline" (use started at baseline) or "on-study" (baseline plus use that was started during the trial). RESULTS Enzalutamide significantly improved OS, rPFS, and TTPP independent of baseline CCU but was associated with inferior clinical outcomes when compared with no baseline CCU, including a shorter OS [10.8 months vs. not reached (NR); HR for use vs. no use, 2.13; 95% confidence interval (CI), 1.79-2.54], rPFS (5.2 months vs. 8.0 months; HR, 1.49; 95% CI, 1.29-1.72], and TTPP (4.6 months vs. 5.7 months; HR, 1.50; 95% CI, 1.25-1.81). These findings held in a multivariate analysis adjusting for baseline prognostic factors wherein baseline CCU was independently associated with decreased OS (HR, 1.71; 95% CI, 1.43-2.04; P < 0.0001) and rPFS (HR, 1.28; 95% CI, 1.11-1.48; P = 0.0007). CONCLUSIONS Patients with mCRPC benefited from enzalutamide treatment independent of CCU, but CCU was associated with worse baseline prognostic factors and outcomes.
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Affiliation(s)
- Jimmy L. Zhao
- Genitourinary Oncology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York.,Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Karim Fizazi
- Department of Cancer Medicine at Institut Gustave Roussy, Villejuif, France
| | - Fred Saad
- Department of GU Oncology, University of Montreal Hospital Centre (CHUM), Montreal, Canada
| | - Kim N. Chi
- Vancouver Prostate Centre, Vancouver, Canada
| | - Mary-Ellen Taplin
- Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - Cora N. Sternberg
- Englander Institute for Precision Medicine, Sandra and Edward Meyer Cancer Center, New York, New York
| | | | - Johann S. de Bono
- The Institute of Cancer Research and Royal Marsden Hospital, London, United Kingdom
| | | | - Howard I. Scher
- Genitourinary Oncology Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, New York.,Weill Cornell College of Medicine, New York, New York.,Corresponding Author: Howard I. Scher, Genitourinary Oncology Service, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, NY 10065. E-mail:
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Guo Y, Luo J, Zou H, Liu C, Deng L, Li P. Context-dependent transcriptional regulations of YAP/TAZ in cancer. Cancer Lett 2022; 527:164-173. [PMID: 34952145 DOI: 10.1016/j.canlet.2021.12.019] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 11/20/2021] [Accepted: 12/13/2021] [Indexed: 02/07/2023]
Abstract
As the downstream effectors of Hippo pathway, YAP/TAZ are identified to participate in organ growth, regeneration and tumorigenesis. However, owing to lack of a DNA-binding domain, YAP/TAZ usually act as coactivators and cooperate with other transcription factors or partners to mediate their transcriptional outputs. In this article, we first present an overview of the core components and the upstream regulators of Hippo-YAP/TAZ signaling in mammals, and then systematically summarize the identified transcription factors or partners that are responsible for the downstream transcriptional output of YAP/TAZ in various cancers.
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Affiliation(s)
- Yibo Guo
- Scientific Research Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, 518107, Guangdong, People's Republic of China
| | - Juan Luo
- Scientific Research Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, 518107, Guangdong, People's Republic of China
| | - Hailin Zou
- Scientific Research Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, 518107, Guangdong, People's Republic of China
| | - Chenxin Liu
- Key Laboratory for Green Chemical Process of Ministry of Education, Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, Hubei Engineering Research Center for Advanced Fine Chemicals, School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan, Hubei, 430205, People's Republic of China
| | - Liang Deng
- Department of General Surgery, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, 518107, Guangdong, People's Republic of China
| | - Peng Li
- Scientific Research Center, The Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, 518107, Guangdong, People's Republic of China; Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital of Sun Yat-sen University, No. 628 Zhenyuan Road, Shenzhen, 518107, Guangdong, People's Republic of China.
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Chen MK, Liang ZJ, Luo DS, Xue KY, Liao DY, Li Z, Yu Y, Chen ZS, Zhao SC. Abiraterone, Orteronel, Enzalutamide and Docetaxel: Sequential or Combined Therapy? Front Pharmacol 2022; 13:843110. [PMID: 35250590 PMCID: PMC8891580 DOI: 10.3389/fphar.2022.843110] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Accepted: 01/12/2022] [Indexed: 12/19/2022] Open
Abstract
Objective: To summarize the current therapeutic status using chemotherapeutic agent docetaxel and endocrine therapeutic agents (ARAT, abiraterone, orteronel or enzalutamide) for the treatment of metastatic castration-resistant prostate cancer (mCRPC), including sequential therapy and combined therapy, to promote the consensus on the optimal regimen for achieving superior treatment efficacy.Methods: Through literature search in PubMed, articles with the following relevant keywords were collected and anlyzed: CRPC, abiraterone, orteronel and enzalutamide, median survival, overall survival, prostate specific antigen (PSA), PSA response rate and median radiologic progression-free survival.Results: Fifty-eight articles were obtained and analyzed in this review. These articles included androgen axis-targeting agents after docetaxel, docetaxel after androgen axis-targeting agents, Triple sequential and combination therapy, covering four current drugs for mCRPC treatment: docetaxel, abiraterone, orteronel, and enzalutamide. It was found that there may be some cross-resistance between androgen axis-targeting agents, which will reduce the efficacy of subsequent drug treatment. Although neither of the studies of using combination therapy showed serious drug toxicity, the efficacy of sequential therapy was not as good as expected. Most adverse reactions after treatment were reported to be level 1–2.Conclusion: Based on the results of the current studies, abiraterone followed by enzalutamide treatment is the best sequential treatment for most docetaxel-naïve patients. This treatment achieves not only good OS, but also PFS and PSA response rates. In addition, for patients who have previously failed docetaxel treatment, enzalutamide is the best choice as the subsequent treatment.
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Affiliation(s)
- Ming-kun Chen
- Department of Urology, The Third Affiliated Hospital, Southern Medical University, Guangzhou, China
- Department of Urology, The Third Clinical College of Southern Medical University, Guangzhou, China
| | - Zhi-jian Liang
- Department of Urology, The Third Affiliated Hospital, Southern Medical University, Guangzhou, China
- Department of Urology, The Third Clinical College of Southern Medical University, Guangzhou, China
| | - Dao-Sheng Luo
- Dongguan Hospital, Southern Medical University, Dongguan, China
| | - Kang-yi Xue
- Department of Urology, The Third Affiliated Hospital, Southern Medical University, Guangzhou, China
- Department of Urology, The Third Clinical College of Southern Medical University, Guangzhou, China
| | - De-ying Liao
- Department of Urology, The Third Affiliated Hospital, Southern Medical University, Guangzhou, China
- Department of Urology, The Third Clinical College of Southern Medical University, Guangzhou, China
| | - Zheshen Li
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John’s University, Queens, NY, United States
| | - Yuzhong Yu
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zhe-Sheng Chen
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John’s University, Queens, NY, United States
- *Correspondence: Zhe-Sheng Chen, ; Shan-Chao Zhao,
| | - Shan-Chao Zhao
- Department of Urology, The Third Affiliated Hospital, Southern Medical University, Guangzhou, China
- Department of Urology, The Third Clinical College of Southern Medical University, Guangzhou, China
- Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- *Correspondence: Zhe-Sheng Chen, ; Shan-Chao Zhao,
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Serritella AV, Shevrin D, Heath EI, Wade JL, Martinez E, Anderson A, Schonhoft J, Chu YL, Karrison T, Stadler WM, Szmulewitz RZ. Phase I/II trial of enzalutamide and mifepristone, a glucocorticoid receptor antagonist, for metastatic castration-resistant prostate cancer. Clin Cancer Res 2022; 28:1549-1559. [PMID: 35110415 DOI: 10.1158/1078-0432.ccr-21-4049] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 01/18/2022] [Accepted: 01/31/2022] [Indexed: 11/16/2022]
Abstract
PURPOSE Although androgen deprivation therapy (ADT) and androgen receptor signaling inhibitors (ARSI) are effective in metastatic prostate cancer (PC), resistance occurs in most patients. This phase I/II trial assessed the safety, pharmacokinetic impact, and efficacy of the glucocorticoid receptor (GR) antagonist mifepristone (Mif) in combination with enzalutamide (Enz) for castration-resistant PC (CRPC). PATIENTS AND METHODS 106 patients with CRPC were accrued. Phase I subjects were treated with Enz monotherapy at 160 mg per day for 28 days to allow steady-state accumulation. Patients then entered the dose escalation combination portion of the study. In phase II, patients were randomized 1:1 to either receive Enz alone or Enz plus Mif. The primary endpoint was PSA progression free survival (PFS), with radiographic PFS, and PSA response rate (RR) as key secondary endpoints. Circulating tumor cells were collected before randomization for exploratory translational biomarker studies. RESULTS We determined a 25% dose reduction in Enz, when added to Mif resulted in equivalent drug levels compared to full dose Enz and was well tolerated. However, the addition of Mif to Enz following a 12-week Enz lead-in did not delay time to PSA, radiographic or clinical PFS. The trial was terminated early due to futility. CONCLUSION This is the first prospective trial of dual AR-GR antagonism in CRPC. Enz combined with Mif was safe and well tolerated but did not meet its primary endpoint. The development of more specific GR antagonists combined with AR antagonists, potentially studied in an earlier disease state, should be explored.
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Affiliation(s)
| | | | | | - James L Wade
- Medical Oncology, Decatur Memorial Hospital Cancer Care Institute
| | | | | | | | | | | | - Walter M Stadler
- Department of Medicine/Section of Hematology/Oncology, University of Chicago
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Redox-responsive nanoparticles enhance radiation therapy by altering multifaceted radio-resistance mechanisms in human castration-resistant prostate cancer cells and xenografts. Radiother Oncol 2022; 170:213-223. [DOI: 10.1016/j.radonc.2022.02.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 02/11/2022] [Accepted: 02/18/2022] [Indexed: 12/19/2022]
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Differential Gene Expression Profiles between N-Terminal Domain and Ligand-Binding Domain Inhibitors of Androgen Receptor Reveal Ralaniten Induction of Metallothionein by a Mechanism Dependent on MTF1. Cancers (Basel) 2022; 14:cancers14020386. [PMID: 35053548 PMCID: PMC8773799 DOI: 10.3390/cancers14020386] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/06/2022] [Accepted: 01/11/2022] [Indexed: 02/04/2023] Open
Abstract
Hormonal therapies for prostate cancer target the androgen receptor (AR) ligand-binding domain (LBD). Clinical development for inhibitors that bind to the N-terminal domain (NTD) of AR has yielded ralaniten and its analogues. Ralaniten acetate is well tolerated in patients at 3600 mgs/day. Clinical trials are ongoing with a second-generation analogue of ralaniten. Binding sites on different AR domains could result in differential effects on AR-regulated gene expression. Here, we provide the first comparison between AR-NTD inhibitors and AR-LBD inhibitors on androgen-regulated gene expression in prostate cancer cells using cDNA arrays, GSEA, and RT-PCR. LBD inhibitors and NTD inhibitors largely overlapped in the profile of androgen-induced genes that they each inhibited. However, androgen also represses gene expression by various mechanisms, many of which involve protein-protein interactions. De-repression of the transcriptome of androgen-repressed genes showed profound variance between these two classes of inhibitors. In addition, these studies revealed a unique and strong induction of expression of the metallothionein family of genes by ralaniten by a mechanism independent of AR and dependent on MTF1, thereby suggesting this may be an off-target. Due to the relatively high doses that may be encountered clinically with AR-NTD inhibitors, identification of off-targets may provide insight into potential adverse events, contraindications, or poor efficacy.
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Arman T, Nelson PS. Endocrine and paracrine characteristics of neuroendocrine prostate cancer. Front Endocrinol (Lausanne) 2022; 13:1012005. [PMID: 36440195 PMCID: PMC9691667 DOI: 10.3389/fendo.2022.1012005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 10/24/2022] [Indexed: 11/12/2022] Open
Abstract
Prostate cancer is a common malignancy affecting men worldwide. While the vast majority of newly diagnosed prostate cancers are categorized as adenocarcinomas, a spectrum of uncommon tumor types occur including those with small cell and neuroendocrine cell features. Benign neuroendocrine cells exist in the normal prostate microenvironment, and these cells may give rise to primary neuroendocrine carcinomas. However, the more common development of neuroendocrine prostate cancer is observed after therapeutics designed to repress the signaling program regulated by the androgen receptor which is active in the majority of localized and metastatic adenocarcinomas. Neuroendocrine tumors are identified through immunohistochemical staining for common markers including chromogranin A/B, synaptophysin and neuron specific enolase (NSE). These markers are also common to neuroendocrine tumors that arise in other tissues and organs such as the gastrointestinal tract, pancreas, lung and skin. Notably, neuroendocrine prostate cancer shares biochemical features with nerve cells, particularly functions involving the secretion of a variety of peptides and proteins. These secreted factors have the potential to exert local paracrine effects, and distant endocrine effects that may modulate tumor progression, invasion, and resistance to therapy. This review discusses the spectrum of factors derived from neuroendocrine prostate cancers and their potential to influence the pathophysiology of localized and metastatic prostate cancer.
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Affiliation(s)
- Tarana Arman
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, WA, United States
| | - Peter S. Nelson
- Division of Human Biology, Fred Hutchinson Cancer Center, Seattle, WA, United States
- Division of Clinical Research, Fred Hutchinson Cancer Center, Seattle, WA, United States
- *Correspondence: Peter S. Nelson,
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