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Dasari S, Pathak N, Thomas A, Bitla S, Kumar R, Munirathinam G. Neferine Targets the Oncogenic Characteristics of Androgen-Dependent Prostate Cancer Cells via Inducing Reactive Oxygen Species. Int J Mol Sci 2023; 24:14242. [PMID: 37762540 PMCID: PMC10532349 DOI: 10.3390/ijms241814242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 09/05/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023] Open
Abstract
Castration resistance poses a significant challenge in the management of advanced prostate cancer (PCa), with androgen deprivation therapy (ADT) or chemotherapy being the primary treatment options. However, these approaches often lead to significant side effects and the development of therapeutic resistance. Therefore, it is crucial to explore novel treatment options that can efficiently target PCa, improve patient survival, and enhance their quality of life. Neferine (Nef), a bioactive compound derived from plants, has emerged as a promising candidate for cancer treatment due to its ability to induce apoptosis, autophagy, and cell cycle arrest. In this study, we investigated the potential anticancer effects of Nef in androgen receptor (AR)-positive LNCaP and VCaP cells, representative models of androgen-dependent PCa. Our findings demonstrate that Nef effectively inhibits cell growth, proliferation, and the tumorigenic potential of androgen-dependent PCa cells. Furthermore, Nef treatment resulted in the excessive production of reactive oxygen species (ROS), leading to the activation of key markers of autophagy and apoptosis. These results suggest that Nef has the potential to target the oncogenic characteristics of androgen-dependent PCa cells by exploiting the potency of ROS and inducing autophagy and apoptosis in AR-positive PCa cells. These findings shed light on the therapeutic potential of Nef as a novel treatment option with reduced side effects for androgen-dependent prostate cancer. Further investigations are warranted to assess its efficacy and safety in preclinical and clinical settings.
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Affiliation(s)
- Subramanyam Dasari
- School of Medicine, Indiana University Bloomington, Bloomington, IN 47405, USA;
| | - Nishtha Pathak
- Department of Biomedical Sciences, University of Illinois College of Medicine, Rockford, IL 61108, USA; (N.P.); (A.T.); (S.B.)
| | - Amy Thomas
- Department of Biomedical Sciences, University of Illinois College of Medicine, Rockford, IL 61108, USA; (N.P.); (A.T.); (S.B.)
| | - Shreeja Bitla
- Department of Biomedical Sciences, University of Illinois College of Medicine, Rockford, IL 61108, USA; (N.P.); (A.T.); (S.B.)
| | - Raj Kumar
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, Solan 173234, Himachal Pradesh, India;
| | - Gnanasekar Munirathinam
- Department of Biomedical Sciences, University of Illinois College of Medicine, Rockford, IL 61108, USA; (N.P.); (A.T.); (S.B.)
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Pramanik SD, Kumar Halder A, Mukherjee U, Kumar D, Dey YN, R M. Potential of histone deacetylase inhibitors in the control and regulation of prostate, breast and ovarian cancer. Front Chem 2022; 10:948217. [PMID: 36034650 PMCID: PMC9411967 DOI: 10.3389/fchem.2022.948217] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 06/27/2022] [Indexed: 12/12/2022] Open
Abstract
Histone deacetylases (HDACs) are enzymes that play a role in chromatin remodeling and epigenetics. They belong to a specific category of enzymes that eliminate the acetyl part of the histones’ -N-acetyl lysine, causing the histones to be wrapped compactly around DNA. Numerous biological processes rely on HDACs, including cell proliferation and differentiation, angiogenesis, metastasis, gene regulation, and transcription. Epigenetic changes, specifically increased expression and activity of HDACs, are commonly detected in cancer. As a result, HDACi could be used to develop anticancer drugs. Although preclinical outcomes with HDACs as monotherapy have been promising clinical trials have had mixed results and limited success. In both preclinical and clinical trials, however, combination therapy with different anticancer medicines has proved to have synergistic effects. Furthermore, these combinations improved efficacy, decreased tumor resistance to therapy, and decreased toxicity. In the present review, the detailed modes of action, classification of HDACs, and their correlation with different cancers like prostate, breast, and ovarian cancer were discussed. Further, the different cell signaling pathways and the structure-activity relationship and pharmaco-toxicological properties of the HDACi, and their synergistic effects with other anticancer drugs observed in recent preclinical and clinical studies used in combination therapy were discussed for prostate, breast, and ovarian cancer treatment.
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Affiliation(s)
- Siddhartha Das Pramanik
- Department of Pharmaceutical Engineering and Technology, IIT-BHU, Varanasi, Uttar Pradesh, India
| | - Amit Kumar Halder
- Dr. B.C. Roy College of Pharmacy and Allied Health Sciences, Durgapur, West Bengal, India
| | - Ushmita Mukherjee
- Dr. B.C. Roy College of Pharmacy and Allied Health Sciences, Durgapur, West Bengal, India
| | - Dharmendra Kumar
- Department of Pharmaceutical Chemistry, Narayan Institute of Pharmacy, Gopal Narayan Singh University, Sasaram, Bihar, India
| | - Yadu Nandan Dey
- Dr. B.C. Roy College of Pharmacy and Allied Health Sciences, Durgapur, West Bengal, India
- *Correspondence: Yadu Nandan Dey, ; Mogana R,
| | - Mogana R
- Department of Pharmaceutical Biology, Faculty of Pharmaceutical Sciences, UCSI Education SDN.BHD., Kuala Lumpur, Malaysia
- *Correspondence: Yadu Nandan Dey, ; Mogana R,
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Rao A, Moka N, Hamstra DA, Ryan CJ. Co-Inhibition of Androgen Receptor and PARP as a Novel Treatment Paradigm in Prostate Cancer-Where Are We Now? Cancers (Basel) 2022; 14:801. [PMID: 35159068 PMCID: PMC8834038 DOI: 10.3390/cancers14030801] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 01/28/2022] [Accepted: 02/01/2022] [Indexed: 12/15/2022] Open
Abstract
Metastatic prostate cancer remains lethal with a 5-year survival rate of about 30%, indicating the need for better treatment options. Novel antiandrogens (NAA)-enzalutamide and abiraterone-have been the mainstay of treatment for advanced disease since 2011. In patients who progress on the first NAA, responses to the second NAA are infrequent (25-30%) and short-lasting (median PFS ~3 months). With the growing adoption of NAA therapy in pre-metastatic castration-resistant settings, finding better treatment options for first-line mCRPC has become an urgent clinical need. The regulatory approval of two PARP inhibitors in 2020-rucaparib and olaparib-has provided the first targeted therapy option for patients harboring defects in selected DNA damage response and repair (DDR) pathway genes. However, a growing body of preclinical and clinical data shows that co-inhibition of AR and PARP induces synthetic lethality and could be a promising therapy for patients without any DDR alterations. In this review article, we will investigate the limitations of NAA monotherapy, the mechanistic rationale for synthetic lethality induced by co-inhibition of AR and PARP, the clinical data that have led to the global development of a number of these AR and PARP combination therapies, and how this may impact patient care in the next 2-10 years.
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Affiliation(s)
- Arpit Rao
- Division of Hematology and Oncology, Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX 77030, USA
| | - Nagaishwarya Moka
- Division of Hematology and Oncology, Baylor College of Medicine, Houston, TX 77030, USA;
| | - Daniel A. Hamstra
- Department of Radiation Oncology, Baylor College of Medicine, Houston, TX 77030, USA;
| | - Charles J. Ryan
- Division of Hematology, Oncology and Transplantation, Masonic Comprehensive Cancer Center, University of Minnesota, Minneapolis, MN 55455, USA;
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4
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Abstract
Patients with high-risk localized prostate cancer benefit from multimodality therapy of curative intent. Androgen-deprivation therapy (ADT) combined with radiation improves survival in this population. However, prior clinical trials of neoadjuvant ADT and surgery failed to consistently demonstrate a survival advantage. The development of novel, more potent hormonal agents presents an opportunity to revisit the potential for neoadjuvant therapy to improve long-term outcomes for patients with localized prostate cancer. We review recent advances in neoadjuvant approaches for prostate cancer and emerging clinical trials data supporting the use of neoadjuvant therapy prior to radical prostatectomy.
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Pignot G, Walz J. Identifying the relevant population for neoadjuvant chemo-hormonal therapy combined with radical prostatectomy. Gland Surg 2020; 9:495-497. [PMID: 32420282 DOI: 10.21037/gs.2019.12.22] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Géraldine Pignot
- Service de Chirurgie Oncologique 2, Institut Paoli-Calmettes, Marseille, France
| | - Jochen Walz
- Service de Chirurgie Oncologique 2, Institut Paoli-Calmettes, Marseille, France
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Yuan P, Wang S, Liu X, Wang X, Ye Z, Chen Z. The role of cystoprostatectomy in management of locally advanced prostate cancer: a systematic review. World J Surg Oncol 2020; 18:14. [PMID: 31959170 PMCID: PMC6971978 DOI: 10.1186/s12957-020-1791-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 01/14/2020] [Indexed: 12/26/2022] Open
Abstract
Background The role of cystoprostatectomy for the treatment of locally advanced prostate cancer (LAPC) was evaluated by a comprehensive review of contemporary literatures. Methods A systematic search of English language literatures using PubMed, EMBASE, Web of Science, and Cochrane library, from 1990 to 2018, was performed. Two independent authors reviewed abstracts as well as full-text articles and extracted data from the selected manuscripts. Results After the literature research, seven articles with a total of 211 patients were identified. Both 120 cases who received cystoprostatectomy for the primary treatment of LAPC and 91 cases for the salvage surgery after local recurrence were finally included. Overall incidence of positive surgical margins ranged from 25 to 78%. The incidence of major complications caused by the surgery during the follow-up time was limited. It had been reported that among LAPC patients who received cystoprostatectomy combined with adjuvant therapies, 5-year cancer-specific survival rate and 5-year biochemical progression-free survival was up to 87.1% and 62.2%. Moreover, symptoms such as hematuria and other urination dysfunctions, as well as patients’ quality of life were significantly improved after cystoprostatectomy in LAPC patients with the bladder invasion. Conclusions Cystoprostatectomy can serve as an alternative to the surgical step of multimodal therapy for highly selected LAPC patients with the bladder invasion, which may improve patients’ symptoms and related quality of life. Therefore, cystoprostatectomy as an option for the treatment of LAPC with the bladder invasion may be feasible and safe with considerable survival outcomes.
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Affiliation(s)
- Peng Yuan
- Department of Urology, Tongji Hospital, Tongji Medical School, Huazhong University of Science and Technology, Wuhan, China
| | - Shen Wang
- Department of Urology, Tongji Hospital, Tongji Medical School, Huazhong University of Science and Technology, Wuhan, China
| | - Xiao Liu
- Department of Urology, Tongji Hospital, Tongji Medical School, Huazhong University of Science and Technology, Wuhan, China
| | - Xinguang Wang
- Department of Urology, Tongji Hospital, Tongji Medical School, Huazhong University of Science and Technology, Wuhan, China
| | - Zhangqun Ye
- Department of Urology, Tongji Hospital, Tongji Medical School, Huazhong University of Science and Technology, Wuhan, China
| | - Zhiqiang Chen
- Department of Urology, Tongji Hospital, Tongji Medical School, Huazhong University of Science and Technology, Wuhan, China.
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Abstract
The majority of patients with prostate cancer who later develop lethal metastatic disease have high-risk localized disease at presentation, emphasizing the importance of effective treatment strategies at this stage. Multimodal treatment approaches that combine systemic and local therapies offer a promising strategy for improving the clinical outcomes of patients with high-risk localized prostate cancer. Combinations of neoadjuvant and adjuvant chemotherapy, hormonal therapy, or chemohormonal therapy are considered to be the standard of care in most solid tumours and should be investigated in the future for the treatment of prostate cancer to improve patient outcomes. However, although the combination of androgen deprivation therapy and radiotherapy is a standard of care in high-risk localized or locally advanced prostate cancer, the benefit of chemotherapy or chemohormonal therapy has yet to be demonstrated outside of the metastatic setting. Moreover, the benefit of neoadjuvant and/or adjuvant systemic therapies in combination with radical prostatectomy has not been proved. The development of next-generation hormonal agents, which have been approved for the treatment of castration-resistant prostate cancer, offers further therapeutic possibilities that are being assessed in early-phase clinical trials.
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8
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Pan J, Chi C, Qian H, Zhu Y, Shao X, Sha J, Xu F, Wang Y, Karnes RJ, Dong B, Xue W. Neoadjuvant chemohormonal therapy combined with radical prostatectomy and extended PLND for very high risk locally advanced prostate cancer: A retrospective comparative study. Urol Oncol 2019; 37:991-998. [PMID: 31466813 DOI: 10.1016/j.urolonc.2019.07.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Revised: 07/09/2019] [Accepted: 07/15/2019] [Indexed: 01/05/2023]
Abstract
OBJECTIVE Docetaxel has been shown to be an effective chemotherapy agent when combined with androgen deprivation therapy for hormone sensitive metastatic prostate cancer (CaP). Since very high risk CaP has a high rate of occult metastatic disease and early recurrence, we hypothesize that patients with very high risk locally advanced CaP may benefit from docetaxel-based neoadjuvant chemohormonal therapy (NCHT). Thus, we conducted a retrospective study to identify the outcome of these patients treated with NCHT followed by radical prostatectomy (RP). PATIENTS AND METHODS We retrospectively analyzed data from 177 consecutive patients who had very high risk locally advanced CaP between March 2014 and July 2017. Patients received 3 different therapies: (i) 60 men in NCHT group, (ii) 73 men in neoadjuvant hormonal therapy (NHT) group, and (iii) 44 men received immediate RP without neoadjuvant therapy (No-NT group). Surgical outcomes were analyzed and survival differences were compared by the Kaplan-Meier method. RESULTS The NCHT group had statistically significant higher preoperative Prostate-Specific Antigen (PSA) (P < 0.002), higher Gleason score (P < 0.002), and more advanced clinical stage (P < 0.001) than other groups. After RP, 81% (42/52) of patients in NCHT group, 73% (51/70) of patients in NHT group, and 48% (21/44) of patients in No-NT group achieved an undetectable PSA (P < 0.001). A total of 14% (6/42) patients achieving a postoperative undetectable PSA experienced biochemical recurrence in the NCHT group, with median biochemical progression-free survival (bPFS) time of 19 months; 47% (24/51) experienced biochemical recurrence in the NHT group, with median bPFS time of 13 months; 81% (17/21) experienced biochemical recurrence in the No-NT group, with median bPFS time of 9 months (P < 0.001). The median follow-up time of 3 groups was 12.5 months in the NCHT group, 18.3 months in the NHT group, and 22.8 months in the No-NT group (P = 0.01). CONCLUSION Despite having poorer prognostic factors, the NCHT group had better bPFS time after surgery compared to NHT and No-NT groups. Randomized controlled investigations are needed to validate these results and further follow-up is required for survival endpoints.
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Affiliation(s)
- Jiahua Pan
- Department of Urology, Renji Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Chenfei Chi
- Department of Urology, Renji Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Hongyang Qian
- Department of Urology, Renji Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Yinjie Zhu
- Department of Urology, Renji Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Xiaoguang Shao
- Department of Urology, Renji Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Jianjun Sha
- Department of Urology, Renji Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Fan Xu
- Department of Urology, Renji Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Yanqing Wang
- Department of Urology, Renji Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Robert J Karnes
- Department of Urology, Department of Urology, Mayo Medical School and Mayo Clinic, Rochester, MN
| | - Baijun Dong
- Department of Urology, Renji Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Wei Xue
- Department of Urology, Renji Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China.
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Gold SA, VanderWeele DJ, Harmon S, Bloom JB, Karzai F, Hale GR, Marhamati S, Rayn KN, Mehralivand S, Merino MJ, Gulley JL, Bilusic M, Madan RA, Choyke PL, Turkbey B, Dahut W, Pinto PA. mpMRI preoperative staging in men treated with antiandrogen and androgen deprivation therapy before robotic prostatectomy. Urol Oncol 2019; 37:352.e25-352.e30. [PMID: 31000430 PMCID: PMC8132295 DOI: 10.1016/j.urolonc.2019.01.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 12/28/2018] [Accepted: 01/13/2019] [Indexed: 11/29/2022]
Abstract
INTRODUCTION Using multiparametric magnetic resonance imaging (mpMRI), we sought to preoperatively characterize prostate cancer (PCa) in the setting of antiandrogen plus androgen deprivation therapy (AA-ADT) prior to robotic-assisted radical prostatectomy (RARP). We present our preliminary findings regarding mpMRI depiction of changes of disease staging features and lesion appearance in treated prostate. METHODS Prior to RARP, men received 6 months of enzalutamide and goserelin. mpMRI consisting of T2 weighted, b = 2,000 diffusion weighted imaging, apparent diffusion coefficient mapping, and dynamic contrast enhancement sequences was acquired before and after neoadjuvant therapy. Custom MRI-based prostate molds were printed to directly compare mpMRI findings to H&E whole-mount pathology as part of a phase II clinical trial (NCT02430480). RESULTS Twenty men underwent imaging and RARP after a regimen of AA-ADT. Positive predictive values for post-AA-ADT mpMRI diagnosis of extraprostatic extension, seminal vesicle invasion, organ-confined disease, and biopsy-confirmed PCa lesions were 71%, 80%, 80%, and 85%, respectively. Post-treatment mpMRI correctly staged disease in 15/20 (75%) cases with 17/20 (85%) correctly identified as organ-confined or not. Of those incorrectly staged, 2 were falsely positive for higher stage features and 1 was falsely negative. Post-AA-ADT T2 weighted sequences best depicted presence of PCa lesions as compared to diffusion weighted imaging and dynamic contrast enhancement sequences. CONCLUSION mpMRI proved reliable in detecting lesion changes after antiandrogen therapy corresponding to PCa pathology. Therefore, mpMRI of treated prostates may be helpful for assessing men for surgical planning and staging.
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Affiliation(s)
- Samuel A Gold
- Laboratory for Genitourinary Cancer Pathogenesis, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - David J VanderWeele
- Urologic Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Stephanie Harmon
- Clinical Research Directorate, Frederick National Laboratory for Cancer Research sponsored by the National Cancer Institute, Frederick, MD
| | - Jonathan B Bloom
- Laboratory for Genitourinary Cancer Pathogenesis, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Fatima Karzai
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Graham R Hale
- Laboratory for Genitourinary Cancer Pathogenesis, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Shawn Marhamati
- Laboratory for Genitourinary Cancer Pathogenesis, National Cancer Institute, National Institutes of Health, Bethesda, MD; Department of Urology, Georgetown University Hospital, Washington, DC
| | - Kareem N Rayn
- Laboratory for Genitourinary Cancer Pathogenesis, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Sherif Mehralivand
- Molecular Imaging Program, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Maria J Merino
- Laboratory of Pathology, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - James L Gulley
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Marijo Bilusic
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Ravi A Madan
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Peter L Choyke
- Molecular Imaging Program, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Baris Turkbey
- Molecular Imaging Program, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - William Dahut
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Peter A Pinto
- Laboratory for Genitourinary Cancer Pathogenesis, National Cancer Institute, National Institutes of Health, Bethesda, MD.
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Ma WK, Poon DMC, Chan CK, Chan TW, Cheung FY, Ho LY, Lee EKC, Leung AKC, Leung SYL, So HS, Tam PC, Kwong PWK. Consensus statements on the management of clinically localized prostate cancer from the Hong Kong Urological Association and the Hong Kong Society of Uro-Oncology. BJU Int 2019; 124:221-241. [PMID: 30653801 PMCID: PMC6850389 DOI: 10.1111/bju.14681] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
OBJECTIVE To formulate consensus statements to facilitate physician management strategies for patients with clinically localized prostate cancer (PCa) in Hong Kong by jointly convening a panel of 12 experts from the two local professional organizations representing PCa specialists, who had previously established consensus statements on the management of metastatic PCa for the locality. METHODS Through a series of meetings, the panellists discussed their clinical experience and the published evidence regarding various areas of the management of localized PCa, then drafted consensus statements. At the final meeting, each drafted statement was voted on by every panellist based on its practicability of recommendation in the locality. RESULTS A total of 76 consensus statements were ultimately accepted and established by panel voting. CONCLUSION Derived from the recent evidence and major overseas guidelines, along with local clinical experience and practicability, the consensus statements were aimed to serve as a practical reference for physicians in Hong Kong for the management of localized PCa.
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Affiliation(s)
- Wai-Kit Ma
- Department of Surgery, Queen Mary Hospital, University of Hong Kong, Hong Kong, Hong Kong
| | - Darren Ming-Chun Poon
- State Key Laboratory in Oncology in South China, Department of Clinical Oncology, Sir YK Pao Centre for Cancer, Hong Kong Cancer Institute and Prince of Wales Hospital, Chinese University of Hong Kong, Hong Kong, Hong Kong
| | - Chi-Kwok Chan
- Division of Urology, Department of Surgery, Prince of Wales Hospital, Chinese University of Hong Kong, Hong Kong, Hong Kong
| | - Tim-Wai Chan
- Department of Clinical Oncology, Queen Elizabeth Hospital, Hong Kong, Hong Kong
| | | | | | - Eric Ka-Chai Lee
- Department of Clinical Oncology, Tuen Mun Hospital, Hong Kong, Hong Kong
| | | | | | - Hing-Shing So
- Division of Urology, Department of Surgery, United Christian Hospital, Hong Kong, Hong Kong
| | - Po-Chor Tam
- Department of Surgery, Queen Mary Hospital, The University of Hong Kong, Hong Kong, Hong Kong
| | - Philip Wai-Kay Kwong
- Department of Clinical Oncology, Queen Mary Hospital, University of Hong Kong, Hong Kong
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11
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Linxweiler J, Körbel C, Müller A, Hammer M, Veith C, Bohle RM, Stöckle M, Junker K, Menger MD, Saar M. A novel mouse model of human prostate cancer to study intraprostatic tumor growth and the development of lymph node metastases. Prostate 2018; 78:664-675. [PMID: 29572953 DOI: 10.1002/pros.23508] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 02/23/2018] [Indexed: 12/19/2022]
Abstract
BACKGROUND In this study, we aimed to establish a versatile in vivo model of prostate cancer, which adequately mimics intraprostatic tumor growth, and the natural routes of metastatic spread. In addition, we analyzed the capability of high-resolution ultrasonography (hrUS), in vivo micro-CT (μCT), and 9.4T MRI to monitor tumor growth and the development of lymph node metastases. METHODS A total of 5 × 105 VCaP cells or 5 × 105 cells of LuCaP136- or LuCaP147 spheroids were injected into the prostate of male CB17-SCID mice (n = 8 for each cell type). During 12 weeks of follow-up, orthotopic tumor growth, and metastatic spread were monitored by repetitive serum-PSA measurements and imaging studies including hrUS, μCT, and 9.4T MRI. At autopsy, primary tumors and metastases were harvested and examined by histology and immunohistochemistry (CK5, CK8, AMACR, AR, Ki67, ERG, and PSA). From imaging results and PSA-measurements, tumor volume doubling time, tumor-specific growth rate, and PSA-density were calculated. RESULTS All 24 mice developed orthotopic tumors. The tumor growth could be reliably monitored by a combination of hrUS, μCT, MRI, and serum-PSA measurements. In most animals, lymph node metastases could be detected after 12 weeks, which could also be well visualized by hrUS, and MRI. Immunohistochemistry showed positive signals for CK8, AMACR, and AR in all xenograft types. CK5 was negative in VCaP- and focally positive in LuCaP136- and LuCaP147-xenografts. ERG was positive in VCaP- and negative in LuCaP136- and LuCaP147-xenografts. Tumor volume doubling times and tumor-specific growth rates were 21.2 days and 3.9 %/day for VCaP-, 27.6 days and 3.1 %/day for LuCaP136- and 16.2 days and 4.5 %/day for LuCaP147-xenografts, respectively. PSA-densities were 433.9 ng/mL per milliliter tumor for VCaP-, 6.5 ng/mL per milliliter tumor for LuCaP136-, and 11.2 ng/mL per milliliter tumor for LuCaP147-xenografts. CONCLUSIONS By using different monolayer and 3D spheroid cell cultures in an orthotopic xenograft model, we established an innovative, versatile in vivo model of prostate cancer, which enables the study of both intraprostatic tumor growth as well as metastatic spread to regional lymph nodes. HrUS and MRI are feasible tools to monitor tumor growth and the development of lymph node metastases while these cannot be visualized by μCT.
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Affiliation(s)
| | - Christina Körbel
- Institute for Clinical and Experimental Surgery, Saarland University, Homburg/Saar, Germany
| | - Andreas Müller
- Department of Diagnostic and Interventional Radiology, Saarland University Medical Center, Homburg/Saar, Germany
| | - Markus Hammer
- Department of Urology, Saarland University, Homburg/Saar, Germany
| | - Christian Veith
- Department of General and Surgical Pathology, Saarland University Medical Center, Homburg/Saar, Germany
| | - Rainer M Bohle
- Department of General and Surgical Pathology, Saarland University Medical Center, Homburg/Saar, Germany
| | - Michael Stöckle
- Department of Urology, Saarland University, Homburg/Saar, Germany
| | - Kerstin Junker
- Department of Urology, Saarland University, Homburg/Saar, Germany
| | - Michael D Menger
- Institute for Clinical and Experimental Surgery, Saarland University, Homburg/Saar, Germany
| | - Matthias Saar
- Department of Urology, Saarland University, Homburg/Saar, Germany
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12
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Matulay JT, DeCastro GJ. Radical Prostatectomy for High-risk Localized or Node-Positive Prostate Cancer: Removing the Primary. Curr Urol Rep 2018; 18:53. [PMID: 28589400 DOI: 10.1007/s11934-017-0703-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PURPOSE OF REVIEW We reviewed the literature to determine what role, if any, radical prostatectomy should play in the treatment of high-risk and/or node-positive prostate cancer. RECENT FINDINGS The AUA, NCCN, and EAU all include radical prostatectomy as a treatment option for high-risk prostate cancer based on evidence that has shown improvements in biochemical-free and disease-specific survival. Lymph node-positive patients may also derive benefit from radical prostatectomy with lymph node dissection, however, only retrospective studies with high risk of selection bias have been published to date. High-risk prostate cancer is a heterogeneous disease representing a wide range of disease characteristics. Radical surgery, historically avoided in such patients, may now be considered a valid treatment option for select cases. The adverse effects of surgery using modern techniques lead to similar quality of life outcomes as radiation therapy, and treatment of the primary tumor is likely beneficial when compared to ADT alone.
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Affiliation(s)
- Justin T Matulay
- Department of Urology, Columbia University Medical Center, 161 Fort Washington Ave, 11th Floor, New York, NY, 10032, USA
| | - G Joel DeCastro
- Department of Urology, Columbia University Medical Center, 161 Fort Washington Ave, 11th Floor, New York, NY, 10032, USA.
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Abstract
BACKGROUND Due to an inverse stage migration, the proportion of patients with more aggressive and locally advanced prostate cancer (PCa) has increased over the last few years. The natural history in these patients shows a higher risk of local complications and worse oncologic outcome. OBJECTIVES To analyze the impact of radical prostatectomy (RP) in patients with locally advanced PCa. MATERIALS AND METHODS A review of the literature was performed using PubMed and MEDLINE databases focusing on articles addressing locally advanced PCa. RESULTS Current guidelines recommend local therapy in patients with locally advanced PCa among other treatment options. Thereby no strong evidence favoring radiotherapy or RP is present. Compared to patients without local treatment, RP may improve oncologic outcome and decrease the risk of local complications. Due to more difficult surgery and an increased need of multimodal therapy, higher perioperative morbidity and worse functional outcomes compared to patients with localized PCa are reported. No reliable prospective data indicating a widespread use of neoadjuvant treatment exists. Indication for further adjuvant or salvage therapies depends on pathologic results and postoperative course. CONCLUSIONS RP is one of the treatment options with good long-term results which can be offered to patients with locally advanced PCa. Nevertheless, patients need to be counselled especially about the worse postoperative functional outcome compared to patients with localized PCa.
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Affiliation(s)
- P Mandel
- Martini-Klinik Prostatakrebszentrum, Universitätsklinikum Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Deutschland.
| | - D Tilki
- Martini-Klinik Prostatakrebszentrum, Universitätsklinikum Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Deutschland
| | - M Graefen
- Martini-Klinik Prostatakrebszentrum, Universitätsklinikum Hamburg-Eppendorf, Martinistraße 52, 20246, Hamburg, Deutschland
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Fujita N, Koie T, Ohyama C, Tanaka Y, Soma O, Matsumoto T, Yamamoto H, Imai A, Tobisawa Y, Yoneyama T, Hatakeyama S, Hashimoto Y. Overall survival of high-risk prostate cancer patients who received neoadjuvant chemohormonal therapy followed by radical prostatectomy at a single institution. Int J Clin Oncol 2017; 22:1087-1093. [PMID: 28681153 DOI: 10.1007/s10147-017-1160-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Accepted: 06/28/2017] [Indexed: 11/28/2022]
Abstract
BACKGROUND The optimal treatment for high-risk prostate cancer (PCa) remains to be established. We previously reported favorable, biochemical recurrence-free survival in high-risk PCa patients treated with a neoadjuvant gonadotropin-releasing hormone agonist or antagonist and estramustine phosphate (EMP) (chemohormonal therapy; CHT) followed by radical prostatectomy (RP). We conducted a retrospective study to elucidate the clinical benefit of neoadjuvant CHT for high-risk PCa patients. METHODS We reviewed the clinical and pathological records of 1254 PCa patients who underwent RP and bilateral pelvic lymphadenectomy between July 1996 and April 2016 at Hirosaki University. According to the D'Amico risk classification, we focused on 613 patients in the high-risk group. The high-risk PCa patients were further divided into two groups based on whether the patients received neoadjuvant CHT before RP (EMP group) or not (non-EMP group). The endpoint was overall survival (OS) after surgery. RESULTS The 5- and 10-year OS rates were 98.5 and 92.6%, respectively. The 10-year OS rate in the EMP group was significantly higher compared to the non-EMP group (P = 0.021). In multivariate analysis, administration of neoadjuvant CHT, lymph node involvement, and castration-resistant PCa status were significantly associated with OS. CONCLUSIONS RP with neoadjuvant CHT using EMP for high-risk PCa patients provided excellent long-term OS.
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Affiliation(s)
- Naoki Fujita
- Department of Urology, Hirosaki University Graduate School of Medicine, 5 Zaifucho, Hirosaki, 036-8562, Japan
| | - Takuya Koie
- Department of Urology, Hirosaki University Graduate School of Medicine, 5 Zaifucho, Hirosaki, 036-8562, Japan.
| | - Chikara Ohyama
- Department of Urology, Hirosaki University Graduate School of Medicine, 5 Zaifucho, Hirosaki, 036-8562, Japan
| | - Yoshimi Tanaka
- Department of Urology, Hirosaki University Graduate School of Medicine, 5 Zaifucho, Hirosaki, 036-8562, Japan
| | - Osamu Soma
- Department of Urology, Hirosaki University Graduate School of Medicine, 5 Zaifucho, Hirosaki, 036-8562, Japan
| | - Teppei Matsumoto
- Department of Urology, Hirosaki University Graduate School of Medicine, 5 Zaifucho, Hirosaki, 036-8562, Japan
| | - Hayato Yamamoto
- Department of Urology, Hirosaki University Graduate School of Medicine, 5 Zaifucho, Hirosaki, 036-8562, Japan
| | - Atsushi Imai
- Department of Urology, Hirosaki University Graduate School of Medicine, 5 Zaifucho, Hirosaki, 036-8562, Japan
| | - Yuki Tobisawa
- Department of Urology, Hirosaki University Graduate School of Medicine, 5 Zaifucho, Hirosaki, 036-8562, Japan
| | - Tohru Yoneyama
- Department of Urology, Hirosaki University Graduate School of Medicine, 5 Zaifucho, Hirosaki, 036-8562, Japan
| | - Shingo Hatakeyama
- Department of Urology, Hirosaki University Graduate School of Medicine, 5 Zaifucho, Hirosaki, 036-8562, Japan
| | - Yasuhiro Hashimoto
- Department of Urology, Hirosaki University Graduate School of Medicine, 5 Zaifucho, Hirosaki, 036-8562, Japan
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Karnes RJ, Choeurng V, Ross AE, Schaeffer EM, Klein EA, Freedland SJ, Erho N, Yousefi K, Takhar M, Davicioni E, Cooperberg MR, Trock BJ. Validation of a Genomic Risk Classifier to Predict Prostate Cancer-specific Mortality in Men with Adverse Pathologic Features. Eur Urol 2017; 73:168-175. [PMID: 28400167 DOI: 10.1016/j.eururo.2017.03.036] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Accepted: 03/24/2017] [Indexed: 12/30/2022]
Abstract
BACKGROUND Risk of prostate cancer-specific mortality (PCSM) is highly variable for men with adverse pathologic features at radical prostatectomy (RP); a majority will die of other causes. Accurately stratifying PCSM risk can improve therapy decisions. OBJECTIVE Validate the 22 gene Decipher genomic classifier (GC) to predict PCSM in men with adverse pathologic features after RP. DESIGN, SETTING, AND PARTICIPANTS Men with adverse pathologic features: pT3, pN1, positive margins, or Gleason score >7 who underwent RP in 1987-2010 at Johns Hopkins, Cleveland Clinic, Mayo Clinic, and Durham Veteran's Affairs Hospital. We also analyzed subgroups at high risk (prostate-specific antigen >20 ng/ml, RP Gleason score 8-10, or stage >pT3b), or very high risk of PCSM (biochemical recurrence in<2 yr [BCR2], or men who developed metastasis after RP [MET]). OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS Logistic regression evaluated the association of GC with PCSM within 10 yr of RP (PCSM10), adjusted for the Cancer of the Prostate Risk Assessment Postsurgical Score (CAPRA-S). GC performance was evaluated with area under the receiver operating characteristic curve (AUC) and decision curves. RESULTS AND LIMITATIONS Five hundred and sixty-one men (112 with PCSM10), median follow-up 13.0 yr (patients without PCSM10). For high GC score (> 0.6) versus low-intermediate (≤ 0.6), the odds ratio for PCSM10 adjusted for CAPRA-S was 3.91 (95% confidence interval: 2.43-6.29), with AUC=0.77, an increase of 0.04 compared with CAPRA-S. Subgroup odds ratios were 3.96, 3.06, and 1.95 for high risk, BCR2, or MET, respectively (all p<0.05), with AUCs 0.64-0.72. GC stratified cumulative PCSM10 incidence from 2.8% to 30%. Combined use of case-control and cohort data is a potential limitation. CONCLUSIONS In a large cohort with the longest follow-up to date, Decipher GC demonstrated clinically important prediction of PCSM at 10 yr, independent of CAPRA-S, in men with adverse pathologic features, BCR2, or MET after RP. PATIENT SUMMARY Decipher genomic classifier may improve treatment decision-making for men with adverse or high risk pathology after radical prostatectomy.
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Affiliation(s)
- R Jeffrey Karnes
- Department of Urology, Mayo Clinic College of Medicine, Rochester, MN, USA
| | | | - Ashley E Ross
- James Buchanan Brady Urological Institute and Department of Urology, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Edward M Schaeffer
- James Buchanan Brady Urological Institute and Department of Urology, Johns Hopkins School of Medicine, Baltimore, MD, USA; Department of Urology, Northwestern University School of Medicine, Chicago, IL, USA
| | - Eric A Klein
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Stephen J Freedland
- Surgery Section, Durham Veteran Affairs Medical Center, Durham, NC, USA; Department of Surgery, Division of Urology, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | | | | | | | | | - Matthew R Cooperberg
- Department of Urology and Epidemiology and Biostatistics, University of California San Francisco Comprehensive Cancer Center, San Francisco, CA, USA
| | - Bruce J Trock
- James Buchanan Brady Urological Institute and Department of Urology, Johns Hopkins School of Medicine, Baltimore, MD, USA.
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16
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Ramos-Torres Á, Bort A, Morell C, Rodríguez-Henche N, Díaz-Laviada I. The pepper's natural ingredient capsaicin induces autophagy blockage in prostate cancer cells. Oncotarget 2016; 7:1569-83. [PMID: 26625315 PMCID: PMC4811481 DOI: 10.18632/oncotarget.6415] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Accepted: 11/16/2015] [Indexed: 12/22/2022] Open
Abstract
Capsaicin, the pungent ingredient of red hot chili peepers, has been shown to have anti-cancer activities in several cancer cells, including prostate cancer. Several molecular mechanisms have been proposed on its chemopreventive action, including ceramide accumulation, endoplasmic reticulum stress induction and NFκB inhibition. However, the precise mechanisms by which capsaicin exerts its anti-proliferative effect in prostate cancer cells remain questionable. Herein, we have tested the involvement of autophagy on the capsaicin mechanism of action on prostate cancer LNCaP and PC-3 cells. The results showed that capsaicin induced prostate cancer cell death in a time- and concentration-dependent manner, increased the levels of microtubule-associated protein light chain 3-II (LC3-II, a marker of autophagy) and the accumulation of the cargo protein p62 suggesting an autophagy blockage. Moreover, confocal microscopy revealed that capsaicin treatment increased lysosomes which co-localized with LC3 positive vesicles in a similar extent to that produced by the lysosomal protease inhibitors E64 and pepstatin pointing to an autophagolysosomes breakdown inhibition. Furthermore, we found that capsaicin triggered ROS generation in cells, while the levels of ROS decreased with N-acetyl-cysteine (NAC), a ROS scavenger. Co-treatment of cells with NAC and capsaicin abrogated the effects of capsaicin on autophagy and cell death. Normal prostate PNT2 and RWPE-1 cells were more resistant to capsaicin-induced cytotoxicity and did not accumulate p62 protein. Taken together, these results suggest that ROS-mediated capsaicin-induced autophagy blockage contributes to antiproliferation in prostate cancer cells, which provides new insights into the anticancer molecular mechanism of capsaicin.
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Affiliation(s)
- Ágata Ramos-Torres
- Department of System Biology, Biochemistry and Molecular Biology Unit, School of Medicine, Alcala University, Alcala de Henares 28871, Madrid, Spain
| | - Alicia Bort
- Department of System Biology, Biochemistry and Molecular Biology Unit, School of Medicine, Alcala University, Alcala de Henares 28871, Madrid, Spain
| | - Cecilia Morell
- Department of System Biology, Biochemistry and Molecular Biology Unit, School of Medicine, Alcala University, Alcala de Henares 28871, Madrid, Spain
| | - Nieves Rodríguez-Henche
- Department of System Biology, Biochemistry and Molecular Biology Unit, School of Medicine, Alcala University, Alcala de Henares 28871, Madrid, Spain
| | - Inés Díaz-Laviada
- Department of System Biology, Biochemistry and Molecular Biology Unit, School of Medicine, Alcala University, Alcala de Henares 28871, Madrid, Spain
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Zhang N, Li S, Hua H, Liu D, Song L, Sun P, Huang W, Tang Y, Zhao Y. Low density lipoprotein receptor targeted doxorubicin/DNA-Gold Nanorods as a chemo- and thermo-dual therapy for prostate cancer. Int J Pharm 2016; 513:376-386. [DOI: 10.1016/j.ijpharm.2016.09.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Revised: 06/08/2016] [Accepted: 09/02/2016] [Indexed: 01/29/2023]
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Pietzak EJ, Eastham JA. Neoadjuvant Treatment of High-Risk, Clinically Localized Prostate Cancer Prior to Radical Prostatectomy. Curr Urol Rep 2016; 17:37. [DOI: 10.1007/s11934-016-0592-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Zakian KL, Hatfield W, Aras O, Cao K, Yakar D, Goldman DA, Moskowitz CS, Shukla-Dave A, Tehrani YM, Fine S, Eastham J, Hricak H. Prostate MRSI predicts outcome in radical prostatectomy patients. Magn Reson Imaging 2016; 34:674-81. [PMID: 26821278 DOI: 10.1016/j.mri.2016.01.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Revised: 01/21/2016] [Accepted: 01/22/2016] [Indexed: 01/08/2023]
Abstract
BACKGROUND New non-invasive methods are needed for sub-stratifying high-risk prostate cancer patients. Magnetic resonance spectroscopic imaging (MRSI) maps metabolites in prostate cancer, providing information on tumor aggressiveness and volume. PURPOSE To investigate the correlation between MRSI and treatment failure (TF) after radical prostatectomy (RP). METHODS Two-hundred sixty-two patients who underwent endorectal MRI/MRSI followed by RP at our institution from 2003 to 2007 were studied. MRI stage, number of voxels in the MRSI index lesion (NILV), number of high-grade voxels (NHGV), and number of voxels containing undetectable polyamines (NUPV) were derived. Clinical outcome was followed until August, 2014. Treatment failure was defined as 1) biochemical recurrence (BCR), 2) persistently detectable PSA after RP, or 3) adjuvant therapy initiated in the absence of BCR. MRI/MRSI features and clinical parameters were compared to TF by univariate Cox Proportional Hazards Regression. After backward selection, each MRSI parameter was included in a separate regression model adjusted for NCCN-based clinical risk score (CRS), number of biopsy cores positive (NPC), and MRI stage. RESULTS In univariate analysis, all clinical variables were associated with TF in addition to MRI stage, NILV, NHGV, and NUPV. In multivariate analysis, NILV, NHGV, and NUPV were also significant risk factors for TF (p=0.016, p=0.002, p=0.006, respectively). The association between the number of tumor voxels with undetectable polyamines and the probability of treatment failure has not been previously reported. The number of MRSI cancer voxels correlated with extracapsular extension (ECE) (p<0.0001). CONCLUSIONS MRSI was associated with post-radical prostatectomy treatment failure in models adjusted for the number of positive biopsy cores and clinical risk score. This is the first report that in radical prostatectomy patients MRSI has an association with treatment failure independent of the number of positive biopsy cores. MRSI may help the clinician determine whether patients with high risk disease who undergo RP are candidates for specialized additional treatment.
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Affiliation(s)
- Kristen L Zakian
- Memorial Sloan-Kettering Cancer Center, 1275 York Avenue, NY, NY, 10065, USA.
| | | | - Omer Aras
- MSKCC, 1275 York Avenue, NY, NY, 10065, USA.
| | - Kun Cao
- MSKCC, 1275 York Avenue, NY, NY, 10065, USA.
| | - Derya Yakar
- MSKCC, 1275 York Avenue, NY, NY, 10065, USA.
| | | | | | | | | | - Samson Fine
- MSKCC, 1275 York Avenue, NY, NY, 10065, USA.
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Shiota M, Yokomizo A, Eto M. Taxane Chemotherapy for Hormone-Naïve Prostate Cancer with Its Expanding Role as Breakthrough Strategy. Front Oncol 2016; 5:304. [PMID: 26793621 PMCID: PMC4707543 DOI: 10.3389/fonc.2015.00304] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Accepted: 12/18/2015] [Indexed: 01/29/2023] Open
Abstract
Historically, androgen-deprivation therapy (ADT) was the only primary treatment for metastatic prostate cancer. After prostate cancer develops into castration-resistant prostate cancer (CRPC), there are a few life-prolonging drugs, including taxanes, such as docetaxel and cabazitaxel, as well as novel androgen receptor-targeting agents, such as abiraterone acetate and enzalutamide, which have been proved in clinical trials. However, the prognosis of men with CRPC is still poor. The duration from initiation of ADT to CRPC has not improved in recent decades because no novel therapeutic options have emerged. However, recently, up-front docetaxel chemotherapy has been shown to prolong progression-free as well as overall survival in men with metastatic hormone-naïve prostate cancer. This offers a new way to expand the role of chemotherapy for hormone-naïve prostate cancer. In this review, we summarize the proof-of-concept as well as the current status of taxane chemotherapy for hormone-naïve prostate cancer, focusing on phase 3 clinical trials investigating oncological outcome, and discuss the future direction in this field.
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Affiliation(s)
- Masaki Shiota
- Department of Urology, Graduate School of Medical Sciences, Kyushu University , Fukuoka , Japan
| | - Akira Yokomizo
- Department of Urology, Graduate School of Medical Sciences, Kyushu University , Fukuoka , Japan
| | - Masatoshi Eto
- Department of Urology, Graduate School of Medical Sciences, Kyushu University , Fukuoka , Japan
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