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Porcaro AB, Bianchi A, Panunzio A, Gallina S, Tafuri A, Serafin E, Orlando R, Mazzucato G, Vidiri S, D’Aietti D, Montanaro F, Marafioti Patuzzo G, Artoni F, Baielli A, Ditonno F, Rizzetto R, Veccia A, Gozzo A, De Marco V, Brunelli M, Cerruto MA, Antonelli A. The impact of prognostic group classification on prostate cancer progression in intermediate-risk patients according to the European Association of Urology system: results in 479 patients treated with robot-assisted radical prostatectomy at a single tertiary referral center. Ther Adv Urol 2024; 16:17562872241229260. [PMID: 38348129 PMCID: PMC10860426 DOI: 10.1177/17562872241229260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Accepted: 01/03/2024] [Indexed: 02/15/2024] Open
Abstract
Background Treatment outcomes in intermediate-risk prostate cancer (PCa) may be impaired by adverse pathology misclassification including tumor upgrading and upstaging. Clinical predictors of disease progression need to be improved in this category of patients. Objectives To identify PCa prognostic factors to define prognostic groups in intermediate-risk patients treated with robot-assisted radical prostatectomy (RARP). Design Data from 1143 patients undergoing RARP from January 2013 to October 2020 were collected: 901 subjects had available follow-up, of whom 479 were at intermediate risk. Methods PCa progression was defined as biochemical recurrence and/or local recurrence and/or distant metastases. Study endpoints were evaluated by statistical methods including Cox's proportional hazards, Kaplan-Meyer survival curves, and binomial and multinomial logistic regression models. Results After a median (interquartile range) of 35 months (15-57 months), 84 patients (17.5%) had disease progression, which was independently predicted by the percentage of biopsy-positive cores ⩾ 50% and the International Society of Urological Pathology (ISUP) grade group 3 for clinical factors and by ISUP > 2, positive surgical margins and pelvic lymph node invasion for pathological features. Patients were classified into clinical and pathological groups as favorable, unfavorable (one prognostic factor), and adverse (more than one prognostic factor). The risk of PCa progression increased with worsening prognosis through groups. A significant positive association was found between the two groups; consequently, as clinical prognosis worsened, the risk of detecting unfavorable and adverse pathological prognostic clusters increased in both unadjusted and adjusted models. Conclusion The study identified factors predicting disease progression that allowed the computation of highly correlated prognostic groups. As the prognosis worsened, the risk of PCa progression increased. Intermediate-risk PCa needs more prognostic stratification for appropriate management.
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Affiliation(s)
- Antonio Benito Porcaro
- Department of Urology, University of Verona, Azienda Ospedaliera Universitaria Integrata Verona, Piazzale Stefani 1, Verona 37126, Italy
| | - Alberto Bianchi
- Department of Urology, University of Verona, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | | | - Sebastian Gallina
- Department of Urology, University of Verona, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | | | - Emanuele Serafin
- Department of Urology, University of Verona, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | - Rossella Orlando
- Department of Urology, University of Verona, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | - Giovanni Mazzucato
- Department of Urology, University of Verona, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | - Stefano Vidiri
- Department of Urology, University of Verona, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | - Damiano D’Aietti
- Department of Urology, University of Verona, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | - Francesca Montanaro
- Department of Urology, University of Verona, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | - Giulia Marafioti Patuzzo
- Department of Urology, University of Verona, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | - Francesco Artoni
- Department of Urology, University of Verona, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | - Alberto Baielli
- Department of Urology, University of Verona, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | - Francesco Ditonno
- Department of Urology, University of Verona, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | - Riccardo Rizzetto
- Department of Urology, University of Verona, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | - Alessandro Veccia
- Department of Urology, University of Verona, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | - Alessandra Gozzo
- Department of Urology, University of Verona, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | - Vincenzo De Marco
- Department of Urology, University of Verona, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | - Matteo Brunelli
- Department of Pathology, University of Verona, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | - Maria Angela Cerruto
- Department of Urology, University of Verona, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
| | - Alessandro Antonelli
- Department of Urology, University of Verona, Azienda Ospedaliera Universitaria Integrata, Verona, Italy
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Porcaro AB, Panunzio A, Bianchi A, Sebben M, Gallina S, De Michele M, Orlando R, Serafin E, Mazzucato G, Vidiri S, D'Aietti D, Princiotta A, Montanaro F, Marafioti Patuzzo G, De Marco V, Brunelli M, Pagliarulo V, Cerruto MA, Tafuri A, Antonelli A. Prognostic Impact and Clinical Implications of Unfavorable Upgrading in Low-Risk Prostate Cancer after Robot-Assisted Radical Prostatectomy: Results of a Single Tertiary Referral Center. Cancers (Basel) 2022; 14:cancers14246055. [PMID: 36551541 PMCID: PMC9776665 DOI: 10.3390/cancers14246055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 11/30/2022] [Accepted: 12/07/2022] [Indexed: 12/13/2022] Open
Abstract
Objective: to evaluate predictors and the prognostic impact of favorable vs. unfavorable tumor upgrading among low-risk prostate cancer (LR PCa) patients treated with robot-assisted radical prostatectomy (RARP). Methods: From January 2013 to October 2020, LR PCa patients treated with RARP at our institution were identified. Unfavorable tumor upgrading was defined as the presence of an International Society of Urological Pathology (ISUP) grade group at final pathology > 2. Disease relapse was coded as biochemical recurrence and/or local recurrence and/or presence of distant metastases. Regression analyses tested the association between clinical and pathological features and the risk of unfavorable tumor upgrading and disease relapse. Results: Of the 237 total LR PCa patients, 60 (25.3%) harbored unfavorable tumor upgrading. Disease relapse occurred in 20 (8.4%) patients. Unfavorable upgrading represented an independent predictor of disease relapse, even after adjustment for other clinical and pathological variables. Conversely, favorable tumor upgrading did not show any statistically significant association with PCa relapse. Unfavorable tumor upgrading was associated with tumors being larger (OR: 1.03; p = 0.031), tumors extending beyond the gland (OR: 8.54, p < 0.001), age (OR: 1.07, p = 0.009), and PSA density (PSAD) ≥ 0.15 ng/mL/cc (OR: 1.07, p = 0.009). Conclusions: LR PCa patients with unfavorable upgrading at final pathology were more likely to be older, to have PSAD ≥ 0.15 ng/mL/cc, and to experience disease relapse. Unfavorable tumor upgrading is an issue to consider when counseling these patients to avoid delayed treatments, which may impair cancer-specific survival.
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Affiliation(s)
- Antonio Benito Porcaro
- Department of Urology, University of Verona, Azienda Ospedaliera Universitaria Integrata of Verona, 37126 Verona, Italy
| | - Andrea Panunzio
- Department of Urology, University of Verona, Azienda Ospedaliera Universitaria Integrata of Verona, 37126 Verona, Italy
| | - Alberto Bianchi
- Department of Urology, University of Verona, Azienda Ospedaliera Universitaria Integrata of Verona, 37126 Verona, Italy
| | - Marco Sebben
- Department of Urology, University of Verona, Azienda Ospedaliera Universitaria Integrata of Verona, 37126 Verona, Italy
- Department of Urology, IRCCS Ospedale Sacro Cuore Don Calabria, 37024 Negrar, Italy
| | - Sebastian Gallina
- Department of Urology, University of Verona, Azienda Ospedaliera Universitaria Integrata of Verona, 37126 Verona, Italy
| | - Mario De Michele
- Department of Urology, University of Verona, Azienda Ospedaliera Universitaria Integrata of Verona, 37126 Verona, Italy
| | - Rossella Orlando
- Department of Urology, University of Verona, Azienda Ospedaliera Universitaria Integrata of Verona, 37126 Verona, Italy
| | - Emanuele Serafin
- Department of Urology, University of Verona, Azienda Ospedaliera Universitaria Integrata of Verona, 37126 Verona, Italy
| | - Giovanni Mazzucato
- Department of Urology, University of Verona, Azienda Ospedaliera Universitaria Integrata of Verona, 37126 Verona, Italy
| | - Stefano Vidiri
- Department of Urology, University of Verona, Azienda Ospedaliera Universitaria Integrata of Verona, 37126 Verona, Italy
| | - Damiano D'Aietti
- Department of Urology, University of Verona, Azienda Ospedaliera Universitaria Integrata of Verona, 37126 Verona, Italy
| | - Alessandro Princiotta
- Department of Urology, University of Verona, Azienda Ospedaliera Universitaria Integrata of Verona, 37126 Verona, Italy
| | - Francesca Montanaro
- Department of Urology, University of Verona, Azienda Ospedaliera Universitaria Integrata of Verona, 37126 Verona, Italy
| | - Giulia Marafioti Patuzzo
- Department of Urology, University of Verona, Azienda Ospedaliera Universitaria Integrata of Verona, 37126 Verona, Italy
| | - Vincenzo De Marco
- Department of Urology, University of Verona, Azienda Ospedaliera Universitaria Integrata of Verona, 37126 Verona, Italy
| | - Matteo Brunelli
- Department of Pathology, University of Verona, Azienda Ospedaliera Universitaria Integrata of Verona, 37126 Verona, Italy
| | | | - Maria Angela Cerruto
- Department of Urology, University of Verona, Azienda Ospedaliera Universitaria Integrata of Verona, 37126 Verona, Italy
| | | | - Alessandro Antonelli
- Department of Urology, University of Verona, Azienda Ospedaliera Universitaria Integrata of Verona, 37126 Verona, Italy
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Purayil HT, Daaka Y. βArrestin1 regulates glucocorticoid receptor mitogenic signaling in castration-resistant prostate cancer. Prostate 2022; 82:816-825. [PMID: 35226379 DOI: 10.1002/pros.24324] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 02/04/2022] [Accepted: 02/11/2022] [Indexed: 01/04/2023]
Abstract
BACKGROUND Prostate cancer (PC) is the most commonly diagnosed malignancy and the second leading cause of cancer-related deaths in males. The disease is initially treated with methods that inhibit androgen receptor (AR) signal transduction. Laboratory-based and clinical studies have identified alternative pathways that cause the failure of AR signal inhibition and consequent development of castration-resistant prostate cancer (CRPC). Glucocorticoid receptor (GR) signaling is activated in certain PC patients and promotes the emergence of CRPC, although by as yet incompletely understood mechanisms. We have previously demonstrated that ubiquitous βarrestin1 (βArr1) expression levels are linked to PC progression. Here, we consider the possibility that βArr1 interacts with and activates GR in model CRPC cells. METHODS Bioinformatic analysis of tumor xenograft and human PC datasets was used to correlate the expression of βArr1 and GR. Western blot, immunohistochemistry and immunofluorescence microscopy, and subcellular fractionation were used to determine protein expression level and localization. Immunoprecipitation was applied to detect protein-protein interactions. RNA expression levels were determined using quantitative reverse transcription-polymerase chain reaction. Prostate sphere analysis was used to assess the rate of growth and invasion. The xenograft tumor implantation method was used to determine the tumor growth rate, local invasion, and metastasis. RESULTS Elevated expression of βArr1 positively correlated with increased GR expression and function in CRPC xenograft and in human PC patients. βArr1 is expressed in the cell cytosol and nucleus, and it formed a complex with GR in the nucleus and not cytosol. Depletion of βArr1 in AR-null CRPC cells inhibited GR function and CRPC growth and invasion in both in vitro and in vivo settings. CONCLUSIONS βArr1 binds GR that initiates mitogenic signaling cascades involved in the progression of PC to CRPC. The targeting of the βArr1-GR axis may provide a new opportunity to better manage the CRPC disease.
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Affiliation(s)
- Hamsa Thayele Purayil
- Department of Anatomy and Cell Biology, College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Yehia Daaka
- Department of Anatomy and Cell Biology, College of Medicine, University of Florida, Gainesville, Florida, USA
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Yu L, Toriseva M, Afshan S, Cangiano M, Fey V, Erickson A, Seikkula H, Alanen K, Taimen P, Ettala O, Nurmi M, Boström PJ, Kallajoki M, Tuomela J, Mirtti T, Beumer IJ, Nees M, Härkönen P. Increased Expression and Altered Cellular Localization of Fibroblast Growth Factor Receptor-Like 1 (FGFRL1) Are Associated with Prostate Cancer Progression. Cancers (Basel) 2022; 14:cancers14020278. [PMID: 35053442 PMCID: PMC8796033 DOI: 10.3390/cancers14020278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 12/28/2021] [Accepted: 12/29/2021] [Indexed: 02/01/2023] Open
Abstract
Simple Summary Prostate cancer (PCa) is one of the most frequently diagnosed malignancies in men. PCa is primarily regulated by androgens, but other mechanisms, such as fibroblast growth factor receptor (FGFR) signaling, are also involved. In some patients, PCa relapses after surgical removal of prostate, and androgen deprivation therapy (ADT) is used as the first-line treatment. Unfortunately, the patients often lose response to ADT and progress by other mechanisms to castration-resistant, currently non-curable PCa. In our study, we aimed to identify better diagnostic markers and therapeutic targets against PCa. We analyzed patient PCa tissue samples from radical prostatectomies and biopsies, and used physiologically relevant 3D organoids and mouse xenografts to study FGFR signaling in PCa. We found that FGFRL1, a protein belonging to the FGFR family, plays a role in PCa. Our results suggest that FGFRL1 has significant effects on PCa progression and has potential as a prognostic biomarker. Abstract Fibroblast growth factor receptors (FGFRs) 1–4 are involved in prostate cancer (PCa) regulation, but the role of FGFR-like 1 (FGFRL1) in PCa is unclear. FGFRL1 expression was studied by qRT-PCR and immunohistochemistry of patient tissue microarrays (TMAs) and correlated with clinical patient data. The effects of FGFRL1 knockdown (KD) in PC3M were studied in in vitro culture models and in mouse xenograft tumors. Our results showed that FGFRL1 was significantly upregulated in PCa. The level of membranous FGFRL1 was negatively associated with high Gleason scores (GSs) and Ki67, while increased cytoplasmic and nuclear FGFRL1 showed a positive correlation. Cox regression analysis indicated that nuclear FGFRL1 was an independent prognostic marker for biochemical recurrence after radical prostatectomy. Functional studies indicated that FGFRL1-KD in PC3M cells increases FGFR signaling, whereas FGFRL1 overexpression attenuates it, supporting decoy receptor actions of membrane-localized FGFRL1. In accordance with clinical data, FGFRL1-KD markedly suppressed PC3M xenograft growth. Transcriptomics of FGFRL1-KD cells and xenografts revealed major changes in genes regulating differentiation, ECM turnover, and tumor–stromal interactions associated with decreased growth in FGFRL1-KD xenografts. Our results suggest that FGFRL1 upregulation and altered cellular compartmentalization contribute to PCa progression. The nuclear FGFRL1 could serve as a prognostic marker for PCa patients.
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Affiliation(s)
- Lan Yu
- Institute of Biomedicine and FICAN West Cancer Centre, University of Turku and Turku University Hospital, 20520 Turku, Finland; (L.Y.); (M.T.); (S.A.); (V.F.); (P.T.); (M.N.)
| | - Mervi Toriseva
- Institute of Biomedicine and FICAN West Cancer Centre, University of Turku and Turku University Hospital, 20520 Turku, Finland; (L.Y.); (M.T.); (S.A.); (V.F.); (P.T.); (M.N.)
| | - Syeda Afshan
- Institute of Biomedicine and FICAN West Cancer Centre, University of Turku and Turku University Hospital, 20520 Turku, Finland; (L.Y.); (M.T.); (S.A.); (V.F.); (P.T.); (M.N.)
| | - Mario Cangiano
- GenomeScan, 2333 BZ Leiden, The Netherlands; (M.C.); (I.J.B.)
| | - Vidal Fey
- Institute of Biomedicine and FICAN West Cancer Centre, University of Turku and Turku University Hospital, 20520 Turku, Finland; (L.Y.); (M.T.); (S.A.); (V.F.); (P.T.); (M.N.)
| | - Andrew Erickson
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford 0X3 9DU, UK;
| | - Heikki Seikkula
- Department of Urology, University of Turku and Turku University Hospital, 20520 Turku, Finland; (H.S.); (O.E.); (M.N.); (P.J.B.)
| | - Kalle Alanen
- Department of Pathology, Turku University Hospital, 20520 Turku, Finland; (K.A.); (M.K.)
| | - Pekka Taimen
- Institute of Biomedicine and FICAN West Cancer Centre, University of Turku and Turku University Hospital, 20520 Turku, Finland; (L.Y.); (M.T.); (S.A.); (V.F.); (P.T.); (M.N.)
- Department of Pathology, Turku University Hospital, 20520 Turku, Finland; (K.A.); (M.K.)
| | - Otto Ettala
- Department of Urology, University of Turku and Turku University Hospital, 20520 Turku, Finland; (H.S.); (O.E.); (M.N.); (P.J.B.)
| | - Martti Nurmi
- Department of Urology, University of Turku and Turku University Hospital, 20520 Turku, Finland; (H.S.); (O.E.); (M.N.); (P.J.B.)
| | - Peter J. Boström
- Department of Urology, University of Turku and Turku University Hospital, 20520 Turku, Finland; (H.S.); (O.E.); (M.N.); (P.J.B.)
| | - Markku Kallajoki
- Department of Pathology, Turku University Hospital, 20520 Turku, Finland; (K.A.); (M.K.)
| | - Johanna Tuomela
- Institute of Biomedicine and FICAN West Cancer Centre, University of Turku and Turku University Hospital, 20520 Turku, Finland; (L.Y.); (M.T.); (S.A.); (V.F.); (P.T.); (M.N.)
| | - Tuomas Mirtti
- HUS Diagnostic Center and Research Program in Systems Oncology (ONCOSYS), Helsinki University Hospital and University of Helsinki, 00014 Helsinki, Finland;
| | - Inès J. Beumer
- GenomeScan, 2333 BZ Leiden, The Netherlands; (M.C.); (I.J.B.)
| | - Matthias Nees
- Institute of Biomedicine and FICAN West Cancer Centre, University of Turku and Turku University Hospital, 20520 Turku, Finland; (L.Y.); (M.T.); (S.A.); (V.F.); (P.T.); (M.N.)
- Department of Biochemistry and Molecular Biology, Medical University in Lublin, 20-093 Lublin, Poland
| | - Pirkko Härkönen
- Institute of Biomedicine and FICAN West Cancer Centre, University of Turku and Turku University Hospital, 20520 Turku, Finland; (L.Y.); (M.T.); (S.A.); (V.F.); (P.T.); (M.N.)
- Correspondence: ; Tel.: +358-40-7343520
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Liu W, Hou J, Petkewicz J, Na R, Wang CH, Sun J, Gallagher J, Bogachkov YY, Swenson L, Regner M, Resurreccion WK, Isaacs WB, Brendler CB, Crawford S, Zheng SL, Helfand BT, Xu J. Feasibility and performance of a novel probe panel to detect somatic DNA copy number alterations in clinical specimens for predicting prostate cancer progression. Prostate 2020; 80:1253-1262. [PMID: 32803894 DOI: 10.1002/pros.24057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 08/03/2020] [Indexed: 11/11/2022]
Abstract
BACKGROUND To assess the feasibility of a novel DNA-based probe panel to detect copy number alterations (CNAs) in prostate tumor DNA and its performance for predicting clinical progression. METHODS A probe panel was developed and optimized to measure CNAs in trace amounts of tumor DNA (2 ng) isolated from formalin-fixed paraffin-embedded tissues. Ten genes previously associated with aggressive disease were targeted. The panel's feasibility and performance were assessed in 175 prostate cancer (PCa) patients who underwent radical prostatectomy with a median 10-year follow-up, including 42 men who developed disease progression (either metastasis and/or PCa-specific death). Association with disease progression was tested using univariable and multivariable analyses. RESULTS The probe panel detected CNAs in all 10 genes in tumor DNA isolated from either diagnostic biopsies or surgical specimens. A four-gene model (PTEN/MYC/BRCA2/CDKN1B) had the strongest association with disease progression; 64.3% of progressors and 22.5% of non-progressors had at least one CNA in these four genes, odds ratio (OR) (95% confidence interval) = 6.21 (2.77-13.87), P = 8.48E-06. The association with disease progression remained significant after adjusting for known clinicopathological variables. Among the seven progressors of the 65 patients with clinically low-risk disease, three (42.9%) had at least one CNA in these four genes. CONCLUSIONS The probe panel can detect CNAs in trace amounts of tumor DNA from biopsies or surgical tissues at the time of diagnosis or surgery. CNAs independently predict metastatic/lethal cancer, particularly among men with clinically low-risk disease at diagnosis. If validated, this may improve current abilities to assess tumor aggressiveness.
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Affiliation(s)
- Wennuan Liu
- Program for Personalized Cancer Care, NorthShore University HealthSystem, Evanston, Illinois
- Department of Surgery, NorthShore University HealthSystem, Evanston, Illinois
| | - Jun Hou
- Program for Personalized Cancer Care, NorthShore University HealthSystem, Evanston, Illinois
| | - Jacqueline Petkewicz
- John and Carol Walter Center for Urological Health, NorthShore University HealthSystem, Evanston, Illinois
| | - Rong Na
- Program for Personalized Cancer Care, NorthShore University HealthSystem, Evanston, Illinois
| | - Chi-Hsiung Wang
- Program for Personalized Cancer Care, NorthShore University HealthSystem, Evanston, Illinois
- Department of Surgery, NorthShore University HealthSystem, Evanston, Illinois
| | - Jishan Sun
- Program for Personalized Cancer Care, NorthShore University HealthSystem, Evanston, Illinois
- Department of Surgery, NorthShore University HealthSystem, Evanston, Illinois
| | - Johnie Gallagher
- Program for Personalized Cancer Care, NorthShore University HealthSystem, Evanston, Illinois
| | - Yedida Y Bogachkov
- Program for Personalized Cancer Care, NorthShore University HealthSystem, Evanston, Illinois
| | - Laura Swenson
- Program for Personalized Cancer Care, NorthShore University HealthSystem, Evanston, Illinois
| | - MaryAnn Regner
- Department of Pathology, NorthShore University HealthSystem, Evanston, Illinois
| | - W Kyle Resurreccion
- Program for Personalized Cancer Care, NorthShore University HealthSystem, Evanston, Illinois
| | - William B Isaacs
- Department of Urology and Oncology, Johns Hopkins School of Medicine, Baltimore, Maryland
| | - Charles B Brendler
- Program for Personalized Cancer Care, NorthShore University HealthSystem, Evanston, Illinois
- Department of Surgery, NorthShore University HealthSystem, Evanston, Illinois
| | - Susan Crawford
- Program for Personalized Cancer Care, NorthShore University HealthSystem, Evanston, Illinois
- Department of Surgery, NorthShore University HealthSystem, Evanston, Illinois
| | - S Lilly Zheng
- Program for Personalized Cancer Care, NorthShore University HealthSystem, Evanston, Illinois
- Department of Surgery, NorthShore University HealthSystem, Evanston, Illinois
| | - Brian T Helfand
- Program for Personalized Cancer Care, NorthShore University HealthSystem, Evanston, Illinois
- Department of Surgery, NorthShore University HealthSystem, Evanston, Illinois
- John and Carol Walter Center for Urological Health, NorthShore University HealthSystem, Evanston, Illinois
| | - Jianfeng Xu
- Program for Personalized Cancer Care, NorthShore University HealthSystem, Evanston, Illinois
- Department of Surgery, NorthShore University HealthSystem, Evanston, Illinois
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Rinella L, Pizzo B, Frairia R, Delsedime L, Calleris G, Gontero P, Zunino V, Fortunati N, Arvat E, Catalano MG. Modulating tumor reactive stroma by extracorporeal shock waves to control prostate cancer progression. Prostate 2020; 80:1087-1096. [PMID: 32609927 DOI: 10.1002/pros.24037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 06/16/2020] [Accepted: 06/18/2020] [Indexed: 12/25/2022]
Abstract
BACKGROUND Prostate cancer is the second most common cancer worldwide. Tumor microenvironment is composed of activated fibroblasts, the so called carcinoma-associated fibroblasts (CAFs). They express high levels of α-smooth muscle actin (α-SMA) and type I collagen (COL1), and support proliferation and migration of tumor epithelial cells. Extracorporeal shock waves (ESWs), acoustic waves, are effective in the treatment of hypertrophic scars, due to their ability to modulate fibrosis. Based on this rationale, the study evaluated the effects of ESWs on CAF activation and the influence of ESW-treated CAFs on the growth and migration of epithelial prostatic carcinoma cells. METHODS Primary cultures of CAFs (n = 10) were prepared from tumors of patients undergoing surgery for high-risk prostate carcinoma. CAFs were treated with ESWs (energy levels: 0.32 mJ/mm2 , 1000 pulses; 0.59 mJ/mm2 , 250 pulses). After treatment, the messenger RNA and protein levels of the stromal activation markers α-SMA and COL1 were determined. Subsequently, two different stabilized cell lines (PC3 and DU145) of androgen-resistant prostate cancer were treated with the conditioned media produced by ESW-treated CAFs. At different times, viability and migration of PC3 and DU145 cells were evaluated. Viability was also assessed by coculture system using CAFs and PC3 or DU145 cells. RESULTS ESWs reduced gene expression and protein level of α-SMA and COL1 in CAFs. The treatment of PC3 and DU145 with conditioned media of ESW-treated CAFs determined a reduction of their growth and invasive potential. Coculture systems between ESW-treated CAFs and PC3 or DU145 cells confirmed the epithelial cell number reduction. CONCLUSIONS This in vitro study demonstrates for the first time that ESWs are able to modulate the activation of prostate CAFs in favor of a less "reactive" stroma, with consequent slowing of the growth and migration of prostate cancer epithelial cells. However, only further studies to be performed in vivo will confirm the possibility of using this new therapy in patients with prostate cancer.
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Affiliation(s)
- Letizia Rinella
- Department of Medical Sciences, University of Turin, Turin, Italy
| | - Benedetta Pizzo
- Department of Medical Sciences, University of Turin, Turin, Italy
| | - Roberto Frairia
- Department of Medical Sciences, University of Turin, Turin, Italy
| | - Luisa Delsedime
- Department of Oncology, Pathology Unit, A.O.U., Città della Salute e della Scienza Hospital, Turin, Italy
| | - Giorgio Calleris
- Division of Urology, Department of Surgical Sciences, AOU Città della Salute e della Scienza di Torino, Turin, Italy
| | - Paolo Gontero
- Division of Urology, Department of Surgical Sciences, AOU Città della Salute e della Scienza di Torino, Turin, Italy
| | - Valentina Zunino
- Department of Medical Sciences, University of Turin, Turin, Italy
| | - Nicoletta Fortunati
- Department of Oncology, Oncological Endocrinology Unit, AO Città della Salute e della Scienza di Torino, Turin, Italy
| | - Emanuela Arvat
- Department of Medical Sciences, University of Turin, Turin, Italy
- Department of Oncology, Oncological Endocrinology Unit, AO Città della Salute e della Scienza di Torino, Turin, Italy
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Zhu J, Yang X, Wang Y, Zhang H, Guo Z. Interleukin-35 is associated with the tumorigenesis and progression of prostate cancer. Oncol Lett 2019; 17:5094-102. [PMID: 31186721 DOI: 10.3892/ol.2019.10208] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 03/04/2019] [Indexed: 12/24/2022] Open
Abstract
Interleukin (IL)-35 is a novel member of the IL-12 cytokine family, which exhibits a unique immune regulatory function. Previously, it was demonstrated that IL-35 expression is significantly increased in a wide range of tumor tissues, promoting angiogenesis and inhibiting the anti-tumor immune response. In the present study, the IL-35 protein expression levels were measured in the plasma and tumor tissue of patients with prostate cancer (PCA), and its role was determined in the occurrence and progression of PCA. Plasma IL-35 expression levels were measured using ELISA, and the associations of plasma IL-35 and clinicopathological parameters were analyzed. Receiver operating characteristic curves were plotted to analyze the role of IL-35 as a clinical biomarker for the diagnosis of PCA. Survival curve analysis demonstrated a significant decrease in the survival time in months in patients with PCA and increased expression levels of IL-35 compared with the participants with relatively lower IL-35 protein expression levels. IL-35 expression was detected using immunohistochemical staining of a human PCA tissue microarray. Plasma IL-35 expression levels in the patients with PCA were significantly increased compared with the patients with benign prostatic hyperplasia and the healthy controls. An increase in the plasma concentration of IL-35 was associated with progression of PCA stage and an increase in the Gleason score. Significant differences in AUCs for IL-35 and prostate-specific antigen were observed with regard to the presence of lymph node and distant metastases in patients with PCA. The expression levels of Epstein-barr virus-induced gene 3 (EBI3) and IL-12A (p35; the subunits which together form IL-35) were significantly increased in the tumor tissue compared with the adjacent normal tissue. An association was identified between the Gleason score and the expression of EBI3 and p35. Therefore, increased expression of IL-35 in the plasma and tumor tissues may contribute to the progression and metastasis of PCA, and IL-35 may serve as a novel prognostic biomarker or therapeutic target for the treatment of PCA.
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8
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Alkhateeb A, Rezaeian I, Singireddy S, Cavallo-Medved D, Porter LA, Rueda L. Transcriptomics Signature from Next-Generation Sequencing Data Reveals New Transcriptomic Biomarkers Related to Prostate Cancer. Cancer Inform 2019; 18:1176935119835522. [PMID: 30890858 PMCID: PMC6416685 DOI: 10.1177/1176935119835522] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 01/23/2019] [Indexed: 12/11/2022] Open
Abstract
Prostate cancer is one of the most common types of cancer among Canadian men. Next-generation sequencing using RNA-Seq provides large amounts of data that may reveal novel and informative biomarkers. We introduce a method that uses machine learning techniques to identify transcripts that correlate with prostate cancer development and progression. We have isolated transcripts that have the potential to serve as prognostic indicators and may have tremendous value in guiding treatment decisions. Analysis of normal versus malignant prostate cancer data sets indicates differential expression of the genes HEATR5B, DDC, and GABPB1-AS1 as potential prostate cancer biomarkers. Our study also supports PTGFR, NREP, SCARNA22, DOCK9, FLVCR2, IK2F3, USP13, and CLASP1 as potential biomarkers to predict prostate cancer progression, especially between stage II and subsequent stages of the disease.
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Affiliation(s)
| | - Iman Rezaeian
- School of Computer Science, University
of Windsor, Windsor, ON, Canada
| | - Siva Singireddy
- School of Computer Science, University
of Windsor, Windsor, ON, Canada
| | - Dora Cavallo-Medved
- Department of Biological Sciences,
University of Windsor, Windsor, ON, Canada
| | - Lisa A Porter
- Department of Biological Sciences,
University of Windsor, Windsor, ON, Canada
| | - Luis Rueda
- School of Computer Science, University
of Windsor, Windsor, ON, Canada
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9
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Kumar NB, Dickinson SI, Schell MJ, Manley BJ, Poch MA, Pow-Sang J. Green tea extract for prevention of prostate cancer progression in patients on active surveillance. Oncotarget 2018; 9:37798-37806. [PMID: 30701033 PMCID: PMC6340872 DOI: 10.18632/oncotarget.26519] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Accepted: 12/10/2018] [Indexed: 01/01/2023] Open
Abstract
Background Active surveillance (AS) has evolved as a management strategy for men with low grade prostate cancer (PCa). However, these patients report anxiety, doubts about the possible progression of the disease as well as higher decisional conflict regarding selection of active surveillance, and have been reported to ultimately opt for treatment without any major change in tumor characteristics. Currently, there is a paucity of research that systematically examines alternate strategies for this target population. Methods We conducted a review the evidence from epidemiological, in vitro, preclinical and early phase trials that have evaluated green tea catechins (GTC) for secondary chemoprevention of prostate cancer, focused on men opting for active surveillanceof low grade PCa. Results Results of our review of the in vitro, preclinical and phase I-II trials, demonstrates that green tea catechins (GTC) can modulate several relevant intermediate biological intermediate endpoint biomarkers implicated in prostate carcinogenesis as well as clinical progression of PCa, without major side effects. Discussion Although clinical trials using GTC have been evaluated in early phase trials in men diagnosed with High-Grade Prostatic Intraepithelial Neoplasia, Atypical Small Acinar Proliferation and in men with localized disease before prostatectomy, the effect of GTC on biological and clinical biomarkers implicated in prostate cancer progression have not been evaluated in this patient population. Conclusion Results of these studies promise to provide a strategy for secondary chemoprevention, reduce morbidities due to overtreatment and improve quality of life in men diagnosed with low-grade PCa.
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Affiliation(s)
- Nagi B Kumar
- H. Lee Moffitt Cancer Center & Research Institute, Inc., Cancer Epidemiology, MRC/CANCONT, Tampa, FL 33612-9497, USA
| | - Shohreh I Dickinson
- H. Lee Moffitt Cancer Center & Research Institute, Inc., Pathology Anatomic MMG, WCB-GU PROG, Tampa, FL 33612-9497, USA
| | - Michael J Schell
- H. Lee Moffitt Cancer Center & Research Institute, Inc., Biostatics and Bioinformatics, MRC-BIOSTAT, Tampa, FL 33612-9497, USA
| | - Brandon J Manley
- H. Lee Moffitt Cancer Center & Research Institute, GU Oncology MMG, Tampa, FL 33612-9497, USA
| | - Michael A Poch
- H. Lee Moffitt Cancer Center & Research Institute, GU Oncology MMG, Tampa, FL 33612-9497, USA
| | - Julio Pow-Sang
- H. Lee Moffitt Cancer Center & Research Institute, GU Oncology MMG, Tampa, FL 33612-9497, USA
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10
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Allott EH, Farnan L, Steck SE, Song L, Arab L, Su LJ, Fontham ETH, Mohler JL, Bensen JT. Statin use, high cholesterol and prostate cancer progression; results from HCaP-NC. Prostate 2018; 78:857-864. [PMID: 29717502 DOI: 10.1002/pros.23644] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 04/06/2018] [Indexed: 01/23/2023]
Abstract
BACKGROUND Statin use is associated with lower advanced prostate cancer risk and reduced prostate cancer-specific mortality, but prior studies were conducted mainly in white men. We examined the effect of statin use on risk of prostate cancer progression in a population-based, minority-enriched cohort. METHODS We used data from prostate cancer cases (45% African American) diagnosed between 2004 and 2007 who participated in the Health Care Access and Prostate Cancer Treatment in North Carolina cohort (HCaP-NC). We abstracted statin use at diagnosis. Men reported if they had ever been diagnosed with high cholesterol. Multivariable Cox proportional hazards analysis was used to examine associations between statin use and risk of prostate cancer progression (biochemical recurrence or secondary treatment), overall and by race. In secondary analysis, we examined the association between high cholesterol and risk of progression, overall, and by statin use. RESULTS Of 669 men, 244 (36%) were statin users at diagnosis. During 3.8 years median follow-up, 138 men experienced prostate cancer progression. There was no association between statin use and risk of progression, either overall (HR 1.03; 95%CI 0.72-1.46) or stratified by race. High cholesterol was inversely associated with risk of progression, particularly among statin users (HR 0.43; 95%CI 0.20-0.94; p-interaction = 0.22) and in men with higher perceived access to care (HR 0.57; 95%CI 0.36-0.90; p-interaction = 0.03). Study limitations included a relatively small sample size, short follow-up, and lack of data regarding post diagnosis statin use. CONCLUSIONS Statin use at diagnosis was not associated with prostate cancer progression in the population-based, minority-enriched HCaP-NC. Greater healthcare engagement, including actively controlling serum cholesterol, may be linked to better prostate cancer-specific outcomes.
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Affiliation(s)
- Emma H Allott
- Department of Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
- Department of Histopathology and Morbid Anatomy, Trinity Translational Medicine Institute, Trinity College Dublin, Dublin, Ireland
- Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | - Laura Farnan
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Susan E Steck
- Department of Epidemiology and Biostatistics, University of South Carolina, Columbia, South Carolina
| | - Lixin Song
- School of Nursing, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Lenore Arab
- David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California
| | - L Joseph Su
- Winthrop P Rockefeller Cancer Institute and College of Public Health, University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - Elizabeth T H Fontham
- School of Public Health, Louisiana State University Health Sciences Center, New Orleans, Louisiana
| | - James L Mohler
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
- Department of Urology, Roswell Park Comprehensive Cancer Center, Buffalo, New York
- Department of Urology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Jeannette T Bensen
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
- Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
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11
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Ruma IMW, Kinoshita R, Tomonobu N, Inoue Y, Kondo E, Yamauchi A, Sato H, Sumardika IW, Chen Y, Yamamoto KI, Murata H, Toyooka S, Nishibori M, Sakaguchi M. Embigin Promotes Prostate Cancer Progression by S100A4-Dependent and-Independent Mechanisms. Cancers (Basel) 2018; 10:cancers10070239. [PMID: 30041429 PMCID: PMC6071117 DOI: 10.3390/cancers10070239] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2018] [Revised: 07/18/2018] [Accepted: 07/19/2018] [Indexed: 12/20/2022] Open
Abstract
Embigin, a transmembrane glycoprotein belonging to the immunoglobulin superfamily, is involved in prostate and mammary gland development. As embigin’s roles in cancer remain elusive, we studied its biological functions and interaction with extracellular S100A4 in prostate cancer progression. We found by a pull-down assay that embigin is a novel receptor for S100A4, which is one of the vital cancer microenvironment milleu. Binding of extracellular S100A4 to embigin mediates prostate cancer progression by inhibition of AMPK activity, activation of NF-κB, MMP9 and mTORC1 signaling, and inhibition of autophagy, which increase prostate cancer cell motility. We also found that embigin promotes prostate cancer growth, spheroid- and colony-forming ability, and survival upon chemotherapy independently of S100A4. An in vivo growth mouse model confirmed the importance of embigin and its cytoplasmic tail in mediating prostate tumor growth. Moreover, embigin and p21WAF1 can be used to predict survival of prostate cancer patients. Our results demonstrated for the first time that the S100A4-embigin/AMPK/mTORC1/p21WAF1 and NF-κB/MMP9 axis is a vital oncogenic molecular cascade for prostate cancer progression. We proposed that embigin and p21WAF1 could be used as prognostic biomarkers and a strategy to inhibit S100A4-embigin binding could be a therapeutic approach for prostate cancer patients.
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Affiliation(s)
- I Made Winarsa Ruma
- Department of Cell Biology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan.
- Department of Biochemistry, Faculty of Medicine, Udayana University, Denpasar 80232, Bali, Indonesia.
| | - Rie Kinoshita
- Department of Cell Biology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan.
| | - Nahoko Tomonobu
- Department of Cell Biology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan.
| | - Yusuke Inoue
- Faculty of Science and Technology, Division of Molecular Science, Gunma University, Gunma 376-8515, Japan.
| | - Eisaku Kondo
- Division of Molecular and Cellular Pathology, Niigata University Graduate School of Medicine and Dental Sciences, Niigata 951-8510, Japan.
| | - Akira Yamauchi
- Department of Biochemistry, Kawasaki Medical School, Okayama 701-0192, Japan.
| | - Hiroki Sato
- Departments of Thoracic, Breast and Endocrinological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan.
| | - I Wayan Sumardika
- Department of Cell Biology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan.
- Department of Pharmacology, Faculty of Medicine, Udayana University, Denpasar 80232, Bali, Indonesia.
| | - Youyi Chen
- Department of Cell Biology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan.
| | - Ken-Ichi Yamamoto
- Department of Cell Biology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan.
| | - Hitoshi Murata
- Department of Cell Biology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan.
| | - Shinichi Toyooka
- Departments of Thoracic, Breast and Endocrinological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan.
| | - Masahiro Nishibori
- Department of Pharmacology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan.
| | - Masakiyo Sakaguchi
- Department of Cell Biology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan.
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12
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Farina NH, Zingiryan A, Akech JA, Callahan CJ, Lu H, Stein JL, Languino LR, Stein GS, Lian JB. A microRNA/Runx1/Runx2 network regulates prostate tumor progression from onset to adenocarcinoma in TRAMP mice. Oncotarget 2018; 7:70462-70474. [PMID: 27634876 PMCID: PMC5342565 DOI: 10.18632/oncotarget.11992] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 09/02/2016] [Indexed: 01/08/2023] Open
Abstract
While decades of research have identified molecular pathways inducing and promoting stages of prostate cancer malignancy, studies addressing dynamic changes of cancer-related regulatory factors in a prostate tumor progression model are limited. Using the TRAMP mouse model of human prostate cancer, we address mechanisms of deregulation for the cancer-associated transcription factors, Runx1 and Runx2 by identifying microRNAs with reciprocal expression changes at six time points during 33 weeks of tumorigenesis. We molecularly define transition stages from PIN lesions to hyperplasia/neoplasia and progression to adenocarcinoma by temporal changes in expression of human prostate cancer markers, including the androgen receptor and tumor suppressors, Nkx3.1 and PTEN. Concomitant activation of PTEN, AR, and Runx factors occurs at early stages. At late stages, PTEN and AR are downregulated, while Runx1 and Runx2 remain elevated. Loss of Runx-targeting microRNAs, miR-23b-5p, miR-139-5p, miR-205-5p, miR-221-3p, miR-375-3p, miR-382-5p, and miR-384-5p, contribute to aberrant Runx expression in prostate tumors. Our studies reveal a Runx/miRNA interaction axis centered on PTEN-PI3K-AKT signaling. This regulatory network translates to mechanistic understanding of prostate tumorigenesis that can be developed for diagnosis and directed therapy.
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Affiliation(s)
- Nicholas H Farina
- Department of Biochemistry and University of Vermont Cancer Center, University of Vermont College of Medicine, Burlington, VT 05405, USA
| | - Areg Zingiryan
- Department of Biochemistry and University of Vermont Cancer Center, University of Vermont College of Medicine, Burlington, VT 05405, USA
| | - Jacqueline A Akech
- Department of Cell and Developmental Biology, University of Massachusetts Medical School, Worcester, MA 01655, USA
| | - Cody J Callahan
- Department of Biochemistry and University of Vermont Cancer Center, University of Vermont College of Medicine, Burlington, VT 05405, USA
| | - Huimin Lu
- Prostate Cancer Discovery and Development Program, Department of Cancer Biology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Janet L Stein
- Department of Biochemistry and University of Vermont Cancer Center, University of Vermont College of Medicine, Burlington, VT 05405, USA
| | - Lucia R Languino
- Prostate Cancer Discovery and Development Program, Department of Cancer Biology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Gary S Stein
- Department of Biochemistry and University of Vermont Cancer Center, University of Vermont College of Medicine, Burlington, VT 05405, USA
| | - Jane B Lian
- Department of Biochemistry and University of Vermont Cancer Center, University of Vermont College of Medicine, Burlington, VT 05405, USA
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13
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Lo UG, Lee CF, Lee MS, Hsieh JT. The Role and Mechanism of Epithelial-to-Mesenchymal Transition in Prostate Cancer Progression. Int J Mol Sci 2017; 18:ijms18102079. [PMID: 28973968 PMCID: PMC5666761 DOI: 10.3390/ijms18102079] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 09/21/2017] [Accepted: 09/27/2017] [Indexed: 12/12/2022] Open
Abstract
In prostate cancer (PCa), similar to many other cancers, distant organ metastasis symbolizes the beginning of the end disease, which eventually leads to cancer death. Many mechanisms have been identified in this process that can be rationalized into targeted therapy. Among them, epithelial-to-mesenchymal transition (EMT) is originally characterized as a critical step for cell trans-differentiation during embryo development and now recognized in promoting cancer cells invasiveness because of high mobility and migratory abilities of mesenchymal cells once converted from carcinoma cells. Nevertheless, the underlying pathways leading to EMT appear to be very diverse in different cancer types, which certainly represent a challenge for developing effective intervention. In this article, we have carefully reviewed the key factors involved in EMT of PCa with clinical correlation in hope to facilitate the development of new therapeutic strategy that is expected to reduce the disease mortality.
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Affiliation(s)
- U-Ging Lo
- Department of Urology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
| | - Cheng-Fan Lee
- Department of Urology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
- Department of Biochemistry and Molecular Biology, College of Medicine, National Taiwan University, Taipei 10617, Taiwan.
| | - Ming-Shyue Lee
- Department of Biochemistry and Molecular Biology, College of Medicine, National Taiwan University, Taipei 10617, Taiwan.
| | - Jer-Tsong Hsieh
- Department of Urology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
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14
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Affiliation(s)
- Anna C Groner
- a Department of Medical Oncology , Dana-Farber Cancer Institute, Harvard Medical School , Boston , MA , USA.,b Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Harvard Medical School , Boston , MA , USA
| | - Myles Brown
- a Department of Medical Oncology , Dana-Farber Cancer Institute, Harvard Medical School , Boston , MA , USA.,b Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Harvard Medical School , Boston , MA , USA
| | - Jean-Philippe Theurillat
- c Institute of Oncology Research, Oncology Institute of Southern Switzerland , Bellinzona , Switzerland.,d Faculty of Biology and Medicine, Center Hospitalier, Universitaire Vaudois, University of Lausanne , Lausanne , Switzerland
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15
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Sugie S, Mukai S, Yamasaki K, Kamibeppu T, Tsukino H, Kamoto T. Significant Association of Caveolin-1 and Caveolin-2 with Prostate Cancer Progression. Cancer Genomics Proteomics 2015; 12:391-396. [PMID: 26543085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023] Open
Abstract
BACKGROUND/AIM Up-regulation of caveolin (CAV)-1 is associated with aggressive prostate cancer. Recently, it has been inferred that CAV2, a co-factor sub-type of CAV1, cross-talks with CAV1 and promotes tumor growth. We previously reported that plasma CAV1 levels are elevated in patients with castration-resistant prostate cancer (CRPC), but not in hormone-sensitive prostate cancer (non-CRPC), implying that CAV1 may be a therapeutic target for CRPC. However, a correlation of CAV1 and CAV2 expression in PC has not yet been reported. Herein, we analyzed associations between PC progression and plasma CAV1 and -2 in Japanese men, and expression of CAV1 and -2 in PC3 (CRPC) and LNCaP (non-CRPC) cell lines. MATERIALS AND METHODS We investigated plasma samples from 36 patients with CRPC and 22 with non-CRPC. We used enzyme-linked immunosorbent assay (ELISA) to determine plasma levels of CAV1 and -2, and examined correlations with clinicopathological characteristics such as Gleason grade and clinical T stage. Real-time quantitative reverse transcription-polymerase chain reaction (qRT-PCR) was used to evaluate CAV1 and CAV2 mRNA in PC cell lines. We also introduced CAV1- and CAV2-specific small interfering (siRNA) into PC3 cells to knock-down (KD) both molecules, and examined its influence on the expression of these genes between PC3 CAV1 and -2 KD cells and control cells. RESULTS Plasma CAV1 and -2 levels in patients with CRPC were significantly higher than in those with non-CRPC (CAV1, p=0.003; CAV2, p<0.001). Plasma levels of CAV1 and -2 were significantly correlated (p<0.001). However, we did not find any significant relationship between CAV1 or CAV2 expression and clinicopathological factors. ELISA and real-time qRT-PCR showed that both proteins and mRNAs in PC3 cells were significantly over-expressed compared to LNCaP cells (p<0.001). In PC3 CAV1 KD cells, expression of CAV2 was suppressed and confirmed the linkage of CAV2 KD and suppression of CAV1 expression. CONCLUSION There was a significant correlation between plasma CAV-1 and -2 levels and progression of PC. CAV1 and -2 were highly expressed in the PC3 compared to the LNCaP cell line. Our findings support the potential of these molecules as therapeutic targets for CRPC.
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Affiliation(s)
- Satoru Sugie
- Department of Urology, Faculty of Medicine, University of Miyazaki, Kiyotake-cho, Miyazaki, Japan
| | - Shoichiro Mukai
- Department of Urology, Faculty of Medicine, University of Miyazaki, Kiyotake-cho, Miyazaki, Japan
| | - Koji Yamasaki
- Department of Urology, Faculty of Medicine, University of Miyazaki, Kiyotake-cho, Miyazaki, Japan
| | - Toyoharu Kamibeppu
- Department of Urology, Faculty of Medicine, University of Miyazaki, Kiyotake-cho, Miyazaki, Japan
| | - Hiromasa Tsukino
- Department of Urology, Faculty of Medicine, University of Miyazaki, Kiyotake-cho, Miyazaki, Japan
| | - Toshiyuki Kamoto
- Department of Urology, Faculty of Medicine, University of Miyazaki, Kiyotake-cho, Miyazaki, Japan
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16
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Huang Y, Jin C, Hamana T, Liu J, Wang C, An L, McKeehan WL, Wang F. Overexpression of FGF9 in prostate epithelial cells augments reactive stroma formation and promotes prostate cancer progression. Int J Biol Sci 2015; 11:948-60. [PMID: 26157349 PMCID: PMC4495412 DOI: 10.7150/ijbs.12468] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Accepted: 05/15/2015] [Indexed: 12/31/2022] Open
Abstract
Bone metastasis is the major cause of morbidity and mortality of prostate cancer (PCa). Fibroblast growth factor 9 (FGF9) has been reported to promote PCa bone metastasis. However, the mechanism by which overexpression of FGF9 promotes PCa progression and metastasis is still unknown. Herein, we report that transgenic mice forced to express FGF9 in prostate epithelial cells (F9TG) developed high grade prostatic intraepithelial neoplasia (PIN) in an expression level- and time-dependent manner. Moreover, FGF9/TRAMP bigenic mice (F9TRAMP) grew advanced PCa earlier and had higher frequencies of metastasis than TRAMP littermates. We observed tumor microenvironmental changes including hypercellularity and hyperproliferation in the stromal compartment of F9TG and F9TRAMP mice. Expression of TGFβ1, a key signaling molecule overexpressed in reactive stroma, was increased in F9TG and F9TRAMP prostates. Both in vivo and in vitro data indicated that FGF9 promoted TGFβ1 expression via increasing cJun-mediated signaling. Moreover, in silico analyses showed that the expression level of FGF9 was positively associated with expression of TGFβ1 and its downstream signaling molecules in human prostate cancers. Collectively, our data demonstrated that overexpressing FGF9 in PCa cells augmented the formation of reactive stroma and promoted PCa initiation and progression.
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Affiliation(s)
- Yanqing Huang
- 1. Center for Cancer and Stem Cell Biology, Institute of Biosciences and Technology, Texas A&M Health Science Center, Houston, TX, USA
| | - Chengliu Jin
- 1. Center for Cancer and Stem Cell Biology, Institute of Biosciences and Technology, Texas A&M Health Science Center, Houston, TX, USA
| | - Tomoaki Hamana
- 1. Center for Cancer and Stem Cell Biology, Institute of Biosciences and Technology, Texas A&M Health Science Center, Houston, TX, USA
| | - Junchen Liu
- 1. Center for Cancer and Stem Cell Biology, Institute of Biosciences and Technology, Texas A&M Health Science Center, Houston, TX, USA
| | - Cong Wang
- 2. Wenzhou Medical College, Wenzhou, Zhejiang, China
| | - Lei An
- 1. Center for Cancer and Stem Cell Biology, Institute of Biosciences and Technology, Texas A&M Health Science Center, Houston, TX, USA
| | - Wallace L McKeehan
- 1. Center for Cancer and Stem Cell Biology, Institute of Biosciences and Technology, Texas A&M Health Science Center, Houston, TX, USA
| | - Fen Wang
- 1. Center for Cancer and Stem Cell Biology, Institute of Biosciences and Technology, Texas A&M Health Science Center, Houston, TX, USA ; 2. Wenzhou Medical College, Wenzhou, Zhejiang, China ; 3. Department of Molecular and Cellular Medicine, College of Medicine, Texas A&M, Health Science Center, College Station, TX, USA
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17
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Ren Q, Liang J, Wei J, Basturk O, Wang J, Daniels G, Gellert LL, Li Y, Shen Y, Osman I, Zhao J, Melamed J, Lee P. Epithelial and stromal expression of miRNAs during prostate cancer progression. Am J Transl Res 2014; 6:329-339. [PMID: 25075250 PMCID: PMC4113495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2014] [Accepted: 06/12/2014] [Indexed: 06/03/2023]
Abstract
Global microRNA (miRNA) profile may predict prostate cancer (PCa) behaviors. In this study, we examined global miRNA expression by miRNA profiling as well as specific miRNA expression levels in PCa epithelium and stroma by in situ hybridization (ISH) and correlated with various clinicopathological features. We first performed comprehensive miRNA profiling on 27 macrodissected cases of PCa by miRNA microarray. A total of 299 miRNAs were significantly dysregulated in high grade and advanced stage PCa. We demonstrated that PCa can be readily classified into high grade/stage and low-grade/stage groups by its global miRNA expression profile. Next, we examined the expression of several selected dysregulated miRNAs, including let-7c, miR-21, miR-27a, miR-30c, and miR-219, in PCa by ISH. The levels of miRNA expression in epithelial and stromal cells were scored semiquantitatively and compared with clinicopathological features, including age, race, Gleason score, stage, PSA recurrence, metastasis, hormone resistance and survival. We found that the expression of miR-30c and miR-219 were significantly down-regulated in PCa. miR-21 and miR-30c were significantly down-regulated in PCa in African Americans compared to Caucasian Americans. In addition, down-regulation of let-7c, miR-21, miR-30c, and miR-219 are associated with metastatic disease. Furthermore, down-regulation of miR-30c and let-7c are significantly associated with androgen-dependent PCa. In PCa stromal cells, let-7c downregulation is significantly associated with extraprostatic extension. Our data suggest that selected miRNAs may serve as potential biomarkers to predict cancer progression.
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Affiliation(s)
- Qinghu Ren
- Department of Pathology, New York University School of MedicineNew York, USA
| | - Jiaqian Liang
- Department of Pathology, New York University School of MedicineNew York, USA
- Department of Urology, Wuhan No. 1 Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhan, Hubei Province, China
| | - Jianjun Wei
- Department of Pathology, Northwestern University School of MedicineChicago, IL, USA
| | - Olca Basturk
- Department of Pathology, New York University School of MedicineNew York, USA
| | - Jinhua Wang
- Department of NYU Cancer Institute, New York University School of MedicineNew York, USA
| | - Garrett Daniels
- Department of Pathology, New York University School of MedicineNew York, USA
| | - Lan Lin Gellert
- Department of Pathology, New York University School of MedicineNew York, USA
| | - Yirong Li
- Department of Pathology, New York University School of MedicineNew York, USA
| | - Ying Shen
- Department of Pathology, New York University School of MedicineNew York, USA
| | - Iman Osman
- Department of Urology, New York University School of MedicineNew York, USA
| | - Jun Zhao
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and TechnologyWuhan, Hubei Province, China
| | - Jonathan Melamed
- Department of Pathology, New York University School of MedicineNew York, USA
| | - Peng Lee
- Department of Pathology, New York University School of MedicineNew York, USA
- Department of NYU Cancer Institute, New York University School of MedicineNew York, USA
- Department of Urology, New York University School of MedicineNew York, USA
- Department of New York Harbor Healthcare System, New York University School of MedicineNew York, USA
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18
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Abstract
Metastatic prostate cancer is a leading cause of cancer-related death in men worldwide. We have recently discovered that IL-30 shapes the microenvironment of prostate cancer and tumor-draining lymph nodes to favor tumor progression. IL-30 supports tumor growth in vitro, and IL-30 expression in prostate cancer patients is associated with high tumor grade and metastatic stage of disease. Thus, IL-30 may constitute a valuable target for modern therapeutic approaches to hamper prostate cancer progression.
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Affiliation(s)
- Emma Di Carlo
- Department of Medicine and Sciences of Aging; Section of Anatomic Pathology and Molecular Medicine; "G. d'Annunzio" University Foundation; Chieti, Italy ; Ce.S.I. Biotech; Aging Research Center; "G. d'Annunzio" University Foundation; Chieti, Italy
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19
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Dunn TA, Fedor HL, De Marzo AM, Luo J. Molecular profiling of indolent human prostate cancer: tackling technical challenges to achieve high-fidelity genome-wide data. Asian J Androl 2012; 14:385-92. [PMID: 22306912 PMCID: PMC3433951 DOI: 10.1038/aja.2011.147] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2011] [Revised: 10/13/2011] [Accepted: 10/13/2011] [Indexed: 11/09/2022] Open
Abstract
The contemporary problem of prostate cancer overtreatment can be partially attributed to the diagnosis of potentially indolent prostate cancers that pose low risk to aged men, and lack of sufficiently accurate risk stratification methods to reliably seek out men with indolent diseases. Since progressive acquisition and accumulation of genomic alterations, both genetic and epigenetic, is a defining feature of all human cancers at different stages of disease progression, it is hypothesized that RNA and DNA alterations characteristic of indolent prostate tumors may be different from those previously characterized in the setting of clinically significant prostate cancer. Approaches capable of detecting such alterations on a genome-wide level are the most promising. Such analysis may uncover molecular events defining early initiating stages along the natural history of prostate cancer progression, and ultimately lead to rational development of risk stratification methods for identification of men who can safely forego treatment. However, defining and characterizing indolent prostate cancer in a clinically relevant context remains a challenge, particularly when genome-wide approaches are employed to profile formalin-fixed paraffin-embedded (FFPE) tissue specimens. Here, we provide the conceptual basis underlying the importance of understanding indolent prostate cancer from molecular profiling studies, identify the key hurdles in sample acquisition and variables that affect molecular data derived from FFPE tissues, and highlight recent progresses in efforts to address these technical challenges.
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Affiliation(s)
- Thomas A Dunn
- Department of Urology, Johns Hopkins University, Baltimore, MD 21287, USA
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20
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Wolff DW, Xie Y, Deng C, Gatalica Z, Yang M, Wang B, Wang J, Lin MF, Abel PW, Tu Y. Epigenetic repression of regulator of G-protein signaling 2 promotes androgen-independent prostate cancer cell growth. Int J Cancer 2012; 130:1521-31. [PMID: 21500190 PMCID: PMC3155664 DOI: 10.1002/ijc.26138] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2011] [Accepted: 04/01/2011] [Indexed: 12/28/2022]
Abstract
G-protein-coupled receptor (GPCR)-stimulated androgen-independent activation of androgen receptor (AR) contributes to acquisition of a hormone-refractory phenotype by prostate cancer. We previously reported that regulator of G-protein signaling (RGS) 2, an inhibitor of GPCRs, inhibits androgen-independent AR activation (Cao et al., Oncogene 2006;25:3719-34). Here, we show reduced RGS2 protein expression in human prostate cancer specimens compared to adjacent normal or hyperplastic tissue. Methylation-specific PCR analysis and bisulfite sequencing indicated that methylation of the CpG island in the RGS2 gene promoter correlated with RGS2 downregulation in prostate cancer. In vitro methylation of this promoter suppressed reporter gene expression in transient transfection studies, whereas reversal of this promoter methylation with 5-aza-2'-deoxycytidine (5-Aza-dC) induced RGS2 reexpression in androgen-independent prostate cancer cells and inhibited their growth under androgen-deficient conditions. Interestingly, the inhibitory effect of 5-Aza-dC was significantly reduced by an RGS2-targeted short hairpin RNA, indicating that reexpressed RGS2 contributed to this growth inhibition. Restoration of RGS2 levels by ectopic expression in androgen-independent prostate cancer cells suppressed growth of xenografts in castrated mice. Thus, RGS2 promoter hypermethylation represses its expression and unmasks a latent pathway for AR transactivation in prostate cancer cells. Targeting this reversible process may provide a new strategy for suppressing prostate cancer progression by reestablishing its androgen sensitivity.
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Affiliation(s)
- Dennis W. Wolff
- Department of Pharmacology, Creighton University School of Medicine, Omaha, NE 68178, USA
| | - Yan Xie
- Department of Pharmacology, Creighton University School of Medicine, Omaha, NE 68178, USA
| | - Caishu Deng
- Department of Pathology, Creighton University School of Medicine, Omaha, NE 68178, USA
| | - Zoran Gatalica
- Department of Pathology, Creighton University School of Medicine, Omaha, NE 68178, USA
| | - Mingjie Yang
- Department of Pharmacology, Creighton University School of Medicine, Omaha, NE 68178, USA
| | - Bo Wang
- Department of Pathology, Creighton University School of Medicine, Omaha, NE 68178, USA
| | - Jincheng Wang
- Department of Pharmacology, Creighton University School of Medicine, Omaha, NE 68178, USA
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Ming-Fong Lin
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Peter W. Abel
- Department of Pharmacology, Creighton University School of Medicine, Omaha, NE 68178, USA
| | - Yaping Tu
- Department of Pharmacology, Creighton University School of Medicine, Omaha, NE 68178, USA
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
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21
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Stratton MS, Algotar AM, Ranger-Moore J, Stratton SP, Slate EH, Hsu CH, Thompson PA, Clark LC, Ahmann FR. Oral selenium supplementation has no effect on prostate-specific antigen velocity in men undergoing active surveillance for localized prostate cancer. Cancer Prev Res (Phila) 2010; 3:1035-43. [PMID: 20647337 PMCID: PMC4533875 DOI: 10.1158/1940-6207.capr-09-0143] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The Nutritional Prevention of Cancer trial showed a 52% lower incidence of prostate cancer in men supplemented with selenium. As a result, our study was designed to assess whether selenium supplementation attenuates the progression of prostate cancer. A phase 2 randomized, double-blind, placebo-controlled clinical trial was conducted in men with localized nonmetastatic prostate cancer who had elected to forgo active treatment and be followed by active surveillance. A total of 140 men were randomized to placebo (n = 46), 200 microg/d (n = 47), or 800 microg/d (n = 47) selenium p.o. (as selenized yeast) and followed every 3 months for up to 5 years. Prostate-specific antigen (PSA) velocity was used as a marker of prostate cancer progression and was estimated using mixed-effects regression. Adjusting for age, body mass index, baseline selenium, smoking, baseline PSA, race, PSA method, and Gleason score, PSA velocities for the 200 microg/d and 800 microg/d treatment groups were not statistically significantly different from placebo (P = 0.32 and P = 0.61, respectively). In the highest quartile of baseline selenium, men supplemented with 800 microg selenium showed statistically significantly higher PSA velocity as compared with placebo (P = 0.018). Selenium supplementation did not show a protective effect on PSA velocity in subjects with localized prostate cancer. On the contrary, supplementation with high-dose selenium was observed to be a risk factor for increased PSA velocity in men with high baseline plasma selenium concentrations.
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22
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He H, Davidson AJ, Wu D, Marshall FF, Chung LWK, Zhau HE, He D, Wang R. Phorbol ester phorbol-12-myristate-13-acetate induces epithelial to mesenchymal transition in human prostate cancer ARCaPE cells. Prostate 2010; 70:1119-26. [PMID: 20333698 PMCID: PMC3180889 DOI: 10.1002/pros.21146] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND We have reported that human prostate cancer ARCaP(E) cells undertake epithelial to mesenchymal transition (EMT) when stimulated by certain soluble factors, and that EMT is regulated by surface receptor-elicited signaling pathways through protein phosphorylation. It is known that phorbol ester phorbol-12-myristate-13-acetate (PMA), a potent antagonist to both conventional and novel protein kinase C (PKC) isoenzymes, induces cancer cell scattering. METHODS To assess the effect of PMA on EMT, ARCaP(E) cells were treated with PMA and were assayed for EMT-related morphologic and behavioral changes. Specific inhibitors were used to investigate the PMA-induced EMT. RESULTS PMA at 100 nM induced EMT in a time-dependent manner, resulting in a complete change from epithelial to mesenchymal stromal morphology. Concurrently, PMA inhibited expression of epithelial marker E-cadherin and increased the level of stromal marker protein vimentin, while the treated cells showed increased migratory and invasive capacities. Using specific inhibitors, we confirmed that the effect of PMA was mediated by PKC, while isoenzymes of the novel PKC subfamily were implicated as the main mediator. Finally, we determined that the EMT was dependent on newly synthesized proteins, because inhibitors for gene transcription and protein translation could both inhibit the initiation of EMT. CONCLUSIONS Although PMA is well known for its effects on cell migration and tumor formation, this work is the first to define PMA as an EMT inducer in prostate cancer cells. Further investigation in this experimental model may reveal important regulatory mechanisms and additional molecular changes underlying EMT.
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Affiliation(s)
- Hui He
- Department of Urology, the First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China 710061
| | - Alec J. Davidson
- Neuroscience Institute, Morehouse School of Medicine, Atlanta, GA 30310
| | - Daqing Wu
- Molecular Urology and Therapeutics, Department of Urology and Winship Cancer Institute, Emory University School of Medicine, Atlanta, GA 30322
| | - Fray F. Marshall
- Molecular Urology and Therapeutics, Department of Urology and Winship Cancer Institute, Emory University School of Medicine, Atlanta, GA 30322
| | - Leland W. K. Chung
- Molecular Urology and Therapeutics, Department of Urology and Winship Cancer Institute, Emory University School of Medicine, Atlanta, GA 30322
| | - Haiyen E. Zhau
- Molecular Urology and Therapeutics, Department of Urology and Winship Cancer Institute, Emory University School of Medicine, Atlanta, GA 30322
| | - Dalin He
- Department of Urology, the First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China 710061
| | - Ruoxiang Wang
- Molecular Urology and Therapeutics, Department of Urology and Winship Cancer Institute, Emory University School of Medicine, Atlanta, GA 30322
- Corresponding to: Dr. Ruoxiang Wang Department of Urology Emory University School of Medicine 1365B Clifton Road, NE, Suite B5103 Atlanta, GA 30322 Tel. (404) 778-5116 FAX. (404) 778-3965
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23
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Raina K, Rajamanickam S, Singh RP, Deep G, Chittezhath M, Agarwal R. Stage-specific inhibitory effects and associated mechanisms of silibinin on tumor progression and metastasis in transgenic adenocarcinoma of the mouse prostate model. Cancer Res 2008; 68:6822-30. [PMID: 18701508 PMCID: PMC2587411 DOI: 10.1158/0008-5472.can-08-1332] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Herein, using transgenic adenocarcinoma of the mouse prostate (TRAMP) model, we assessed the "stage-specific" efficacy of silibinin feeding against prostate cancer (PCa) initiation, progression, angiogenesis and metastasis, and associated molecular events involved in silibinin effects during these stages. Male TRAMP mice starting at ages 4, 12, 20, and 30 weeks of age were fed with control or 1% silibinin-supplemented diet for 8 to 15 weeks in stage-specific manners. At the end of studies, silibinin-fed mice showed less severe prostatic lesions compared with positive controls. During early stages of prostate tumor development, silibinin mediated its efficacy mostly via antiproliferative mechanisms. Feeding of silibinin to animals burdened with higher stages of prostate tumor significantly decreased tumor grade via antiproliferative effect, and inhibition of angiogenesis as evidenced by decreased expressions of platelet endothelial cell adhesion molecule-1/CD-31, vascular endothelial growth factor, and associated receptor, vascular endothelial growth factor R2, hypoxia-inducible factor-1alpha, and inducible nitric oxide synthase. Metastasis to distant organs was decreased in silibinin-fed mice, which was associated with a decreased expression of matrix metalloproteinases, mesenchymal markers snail-1, and fibronectin in the prostatic tissue and retention of epithelial characteristics. Together, these findings are both novel and highly significant in establishing the dual efficacy of silibinin where it inhibits progression of primary prostatic tumor and also shows protective efficacy against angiogenesis and late stage metastasis. These effects of silibinin could have potential implications to improve the morbidity and survival in PCa patients.
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Affiliation(s)
- Komal Raina
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Colorado Denver, Denver, Colorado, USA
| | - Subapriya Rajamanickam
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Colorado Denver, Denver, Colorado, USA
| | - Rana P. Singh
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Colorado Denver, Denver, Colorado, USA
- Cancer Biology Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi, India
| | - Gagan Deep
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Colorado Denver, Denver, Colorado, USA
| | - Manesh Chittezhath
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Colorado Denver, Denver, Colorado, USA
| | - Rajesh Agarwal
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Colorado Denver, Denver, Colorado, USA
- University of Colorado Cancer Center, University of Colorado Denver, Denver, Colorado, USA
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24
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Anagnostou T, Remzi M, Djavan B. Artificial neural networks for decision-making in urologic oncology. Rev Urol 2003; 5:15-21. [PMID: 16985612 PMCID: PMC1472995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Artificial neural networks (ANNs) are computational methodologies that perform multifactorial analyses, inspired by networks of biological neurons. Like neural networks, ANNs contain layers of simple points (nodes) of data that interract through carefully weighted connection lines. ANNs are "trained" and balanced by having been previously fed data, which the ANN uses as the means for adjusting its interconnections. Studies have shown that novel and highly accurate ANNs significantly enhance the ability to detect prostate cancer early (high sensitivity) while avoiding a greater number of unnecessary tissue samplings (high specificity). The use of ANNs in prostate cancer is ideal because of 1) multiple predicting factors that influence outcome; 2) the desire to offer individual consulting based on various tests; 3) the fact that prior logistic regression analysis results have had serious limitations in application; and 4) the need for an up-to-date tool that can apply easily to everyone. An ANN should be seen as an important tool that is complementary to the physician's personal knowledge and judgment in making decisions.
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25
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Lehrer S, Diamond EJ, Stagger S, Stone NN, Stock RG. Serum insulin level, disease stage, prostate specific antigen (PSA) and Gleason score in prostate cancer. Br J Cancer 2002; 87:726-8. [PMID: 12232754 PMCID: PMC2364268 DOI: 10.1038/sj.bjc.6600526] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2002] [Revised: 07/01/2002] [Accepted: 07/15/2001] [Indexed: 11/08/2022] Open
Abstract
In the present study, we assessed the relationship of serum insulin levels and three surrogate markers of recurrence, T stage, PSA, and Gleason score, in men with localized prostate cancer. Participants in our study were found through urology and radiation oncology clinics, and all eligible patients were asked to take part. All patients were asymptomatic and had been initially diagnosed on the basis of rising PSA or abnormal physical examination. Histological confirmation of diagnosis was obtained for all subjects. Serum insulin levels were determined by chemoluminescent assay with a standard, commercially available instrument. Patients were divided into three previously defined risk groups: Low risk: PSA < or =10, stage < or =T2a, or Gleason grade < or =6. Medium risk: 10 <PSA < or =15, Gleason 7 or stage T2b. High risk: Gleason >7, tumour in seminal vesicle biopsy, PSA >15 or stage T2c or T3. One hundred and sixty-three men with prostate cancer were studied. There was a significant increase in serum insulin with risk group (P=0.003, one way anova). Tukey's multiple range test showed that the insulin levels of high risk patients were significantly higher than the insulin levels of medium and low risk patients (P=0.05) but the insulin levels of medium and low risk patients were not significantly different from one another. Multivariate linear regression, with insulin as the dependent variable, Gleason score, PSA, and T stage (T1, T2, T3) as the independent variables, was significant overall (P<0.001, r(2)=0.120). Increased T stage was independently correlated with increased serum insulin levels (P<0.001). Gleason score was negatively, insignificantly correlated with serum insulin level (P=0.059). The positive correlation of PSA and insulin level was not significant (P=0.097). To assure normal distribution of insulin and PSA values, the regression was repeated with log (insulin) as the dependent variable, log (PSA), T stage (T1, T2, T3), and Gleason score as independent variables. The regression was significant overall (P=0.002, r(2) =0.095). Increased T stage was independently correlated with increased log (insulin level) (P=0.026). Gleason score was negatively, insignificantly correlated with log (insulin) level (P=0.728). The positive correlation of log (PSA) and log (insulin) levels was significant (P=0.010). The relationship between increased insulin level and advanced tumour stage in prostate cancer we describe here is biologically quite plausible, since insulin is a growth factor. Further studies may document whether serum insulin levels might be a useful biomarker of prostate cancer stage.
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Affiliation(s)
- S Lehrer
- Department of Radiation Oncology, Mount Sinai School of Medicine, New York and the Veterans Affairs Medical Center, Bronx, New York, NY 10029, USA.
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