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Fettke H, Kwan EM, Bukczynska P, Steen JA, Docanto M, Ng N, Parente P, Mant A, Foroughi S, Pezaro C, Hauser C, Nguyen-Dumont T, Southey MC, Azad AA. Independent prognostic impact of plasma NCOA2 alterations in metastatic castration-resistant prostate cancer. Prostate 2021; 81:992-1001. [PMID: 34254334 DOI: 10.1002/pros.24194] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 05/21/2021] [Accepted: 06/25/2021] [Indexed: 12/21/2022]
Abstract
BACKGROUND The androgen receptor (AR) pathway-associated gene nuclear receptor coactivator 2 (NCOA2) has an established oncogenic role in early prostate cancer and likewise is a driver of metastatic disease and castration-resistant prostate cancer. However, its significance as a biomarker in metastatic castration-resistant prostate cancer (mCRPC), both alone and in conjunction with co-occurring AR alterations using a liquid biopsy approach has not been investigated. METHODS Ninety-one patients were included in this study, (n = 68 receiving an androgen receptor pathway inhibitor and n = 23 receiving taxane chemotherapy). Up to 30 ml of peripheral blood was collected before commencing treatment from each patient. Plasma cell-free DNA, along with a matched germline sample, underwent targeted next-generation sequencing using a validated, highly sensitive in-house prostate cancer panel. Variants in AR and NCOA2 were identified and correlated with clinical outcomes. RESULTS Plasma AR and NCOA2 aberrations were identified in 35% and 13% of the cohort, respectively, whilst 8% had concurrent AR and NCOA2 alterations. NCOA2 copy number gain and any NCOA2 aberration predicted for lower prostate-specific antigen (PSA) response rates. Likewise, median overall survival was shorter for NCOA2 gain (10.1 vs. 18.3 months; p = .004), remaining significant after adjusting for covariates including circulating tumor DNA fraction and tumor suppressor gene alterations. Importantly, dual AR and NCOA2 aberrations were also associated with inferior outcomes, including no PSA responses in patients treated with AR pathway inhibitors (0% vs. 64%; p = .02). CONCLUSIONS These data highlight the importance of identifying multiple markers of AR pathway modulation in mCRPC and represent the first instance of the assessment of plasma NCOA2 status as a prognostic biomarker for standard-of-care therapies. Further assessment is warranted to determine if NCOA2 aberrations are a marker of primary resistance to AR pathway inhibitors.
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Affiliation(s)
- Heidi Fettke
- Department of Medicine, School of Clinical Sciences, Monash University, Melbourne, Australia
- Cancer Research, Peter MacCallum Cancer Centre, Melbourne, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
| | - Edmond M Kwan
- Department of Medicine, School of Clinical Sciences, Monash University, Melbourne, Australia
- Department of Medical Oncology, Monash Health, Melbourne, Australia
| | | | - Jason A Steen
- Precision Medicine, School of Clinical Sciences, Monash Health, Melbourne, Australia
| | - Maria Docanto
- Department of Medicine, School of Clinical Sciences, Monash University, Melbourne, Australia
| | - Nicole Ng
- Division of Personalised Oncology, The Walter and Eliza Hall Institute of Medical Research, Melbourne, Australia
- Department of Medical Oncology, Peter MacCallum Cancer Centre, Melbourne, Australia
| | - Phillip Parente
- Medical Oncology Unit, Eastern Health, Melbourne, Australia
- Eastern Health Clinical School, Monash University, Melbourne, Australia
| | - Andrew Mant
- Medical Oncology Unit, Eastern Health, Melbourne, Australia
- Eastern Health Clinical School, Monash University, Melbourne, Australia
| | - Siavash Foroughi
- Personalised Oncology Division, The Water and Eliza Hall Institute of Medical Research, Melbourne, Australia
- Department of Medical Biology, The University of Melbourne, Melbourne, Australia
| | - Carmel Pezaro
- Weston Park Cancer Centre, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, England
| | - Christine Hauser
- Cancer Research, Peter MacCallum Cancer Centre, Melbourne, Australia
| | - Tu Nguyen-Dumont
- Precision Medicine, School of Clinical Sciences, Monash Health, Melbourne, Australia
- Department of Clinical Pathology, University of Melbourne, Melbourne, Australia
| | - Melissa C Southey
- Department of Medicine, School of Clinical Sciences, Monash University, Melbourne, Australia
- Precision Medicine, School of Clinical Sciences, Monash Health, Melbourne, Australia
- Department of Clinical Pathology, University of Melbourne, Melbourne, Australia
- Cancer Epidemiology Division, Cancer Council Victoria, Melbourne, Australia
| | - Arun A Azad
- Department of Medicine, School of Clinical Sciences, Monash University, Melbourne, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
- Department of Medical Oncology, Peter MacCallum Cancer Centre, Melbourne, Australia
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Westaby D, Maza MDLDFDL, Paschalis A, Jimenez-Vacas JM, Welti J, de Bono J, Sharp A. A New Old Target: Androgen Receptor Signaling and Advanced Prostate Cancer. Annu Rev Pharmacol Toxicol 2021; 62:131-153. [PMID: 34449248 DOI: 10.1146/annurev-pharmtox-052220-015912] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Owing to the development of multiple novel therapies, there has been major progress in the treatment of advanced prostate cancer over the last two decades; however, the disease remains invariably fatal. Androgens and the androgen receptor (AR) play a critical role in prostate carcinogenesis, and targeting the AR signaling axis with abiraterone, enzalutamide, darolutamide, and apalutamide has improved outcomes for men with this lethal disease. Targeting the AR and elucidating mechanisms of resistance to these agents remains central to drug development efforts. This review provides an overview of the evolution and current approaches for targeting the AR in advanced prostate cancer. It describes the biology of AR signaling, explores AR-targeting resistance mechanisms, and discusses future perspectives and promising novel therapeutic strategies. Expected final online publication date for the Annual Review of Pharmacology and Toxicology, Volume 62 is January 2022. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.
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Affiliation(s)
- Daniel Westaby
- The Institute of Cancer Research, London SM2 5NG, United Kingdom; .,The Royal Marsden Hospital, London SM2 5PT, United Kingdom
| | | | - Alec Paschalis
- The Institute of Cancer Research, London SM2 5NG, United Kingdom; .,The Royal Marsden Hospital, London SM2 5PT, United Kingdom
| | | | - Jon Welti
- The Institute of Cancer Research, London SM2 5NG, United Kingdom;
| | - Johann de Bono
- The Institute of Cancer Research, London SM2 5NG, United Kingdom; .,The Royal Marsden Hospital, London SM2 5PT, United Kingdom
| | - Adam Sharp
- The Institute of Cancer Research, London SM2 5NG, United Kingdom; .,The Royal Marsden Hospital, London SM2 5PT, United Kingdom
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Messersmith EM, Smerchek DT, Hansen SL. The Crossroads between Zinc and Steroidal Implant-Induced Growth of Beef Cattle. Animals (Basel) 2021; 11:1914. [PMID: 34199133 PMCID: PMC8300159 DOI: 10.3390/ani11071914] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 06/24/2021] [Accepted: 06/24/2021] [Indexed: 12/17/2022] Open
Abstract
Growth-promoting technologies such as steroidal implants have been utilized in the beef industry for over 60 years and remain an indispensable tool for improving economic returns through consistently improved average daily gain via increased skeletal muscle hypertrophy. Zinc has been implicated in skeletal muscle growth through protein synthesis, satellite cell function, and many other growth processes. Therefore, the objective of this review was to present the available literature linking Zn to steroidal implant-induced protein synthesis and other metabolic processes. Herein, steroidal implants and their mode of action, the biological importance of Zn, and several connections between steroidal implants and Zn related to growth processes are discussed. These include the influence of Zn on hormone receptor signaling, circulating insulin-like growth factor-1 concentrations, glucose metabolism, protein synthesis via mTOR, and satellite cell proliferation and differentiation. Supplemental Zn has also been implicated in improved growth rates of cattle utilizing growth-promoting technologies, and steroidal implants appear to alter liver and circulating Zn concentrations. Therefore, this review provides evidence of the role of Zn in steroidal implant-induced growth yet reveals gaps in the current knowledge base related to optimizing Zn supplementation strategies to best capture growth performance improvements offered through steroidal implants.
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Affiliation(s)
| | | | - Stephanie L. Hansen
- Department of Animal Science, Iowa State University, Ames, IA 50011, USA; (E.M.M.); (D.T.S.)
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Kim HJ, Jin BR, An HJ. Psoralea corylifolia L. extract ameliorates benign prostatic hyperplasia by regulating prostate cell proliferation and apoptosis. JOURNAL OF ETHNOPHARMACOLOGY 2021; 273:113844. [PMID: 33485982 DOI: 10.1016/j.jep.2021.113844] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 12/30/2020] [Accepted: 01/13/2021] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Psoralea corylifolia L. seed (PCL), commonly known as "Poguzhi" or "BuguZhi", has been widely used to treat kidney yang deficiency in traditional Chinese medicine (TCM) where tonifying the yang deficiency is a representative understanding for treatment of hormonal deficiency disorders such as enuresis, oliguria, and prostatic diseases. Although PCL has been commonly used to treat problems of the urinary system, its efficacy against benign prostatic hyperplasia (BPH) has not yet been reported. AIM OF THE STUDY In the present study, we aimed to assess the in vitro and in vivo efficacy of PCL against BPH, a condition which negatively impacts quality of life in men. MATERIALS AND METHODS Normal human prostate cell lines, RWPE-1 and WPMY-1 cells, were stimulated with 10 nM dihydrotestosterone (DHT) to establish an in vitro BPH model. Subsequently, cells were treated with 100 or 200 μg/ml PCL, which inhibited cell proliferation without cytotoxicity, to evaluate the anti-BPH effect of PCL. Eight-week-old male Wistar rats were castrated, except for those in the control group (Con), and BPH was induced by subcutaneous injection of 10 mg/kg testosterone propionate (TP). Concurrent with daily TP injections, 5 mg/kg of finasteride (Fina) and 50 or 100 mg/kg PCL were orally administrated daily for four weeks, excluding the weekends. RESULTS In DHT-stimulated RWPE-1 and WPMY-1 cells, expression of androgen receptor (AR) androgen signaling-related markers such as 5α-reductase 2 (5AR2), AR, and prostate-specific antigen (PSA) was upregulated, whereas 100 or 200 μg/ml of PCL treatment downregulated these markers. Furthermore, PCL significantly reduced the mRNA expression of anti-apoptotic genes and increased the mRNA expression of pro-apoptotic gene. In vivo, administration of PCL reduced prostate size and weight in TP-induced BPH rats. Moreover, histological alterations in epithelium thickness were significantly restored by the administration of PCL. Immunohistochemical analysis revealed increased expression of AR and proliferating cell nuclear antigen (PCNA) in TP-induced BPH prostates; these changes were suppressed by administration of 50 or 100 mg/kg PCL. CONCLUSIONS We demonstrated the effect of PCL against BPH, mediated by the regulation of prostate cell proliferation and apoptosis, in DHT-stimulated normal human prostate cell lines and TP-induced BPH rats. These findings suggest that PCL could be a potential therapeutic agent against BPH.
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Affiliation(s)
- Hyo-Jung Kim
- Department of Pharmacology, College of Korean Medicine, Sangji University, 83 Sangjidae-gil, Wonju-si, Gangwon-do, 26339, Republic of Korea.
| | - Bo-Ram Jin
- Department of Pharmacology, College of Korean Medicine, Sangji University, 83 Sangjidae-gil, Wonju-si, Gangwon-do, 26339, Republic of Korea.
| | - Hyo-Jin An
- Department of Pharmacology, College of Korean Medicine, Sangji University, 83 Sangjidae-gil, Wonju-si, Gangwon-do, 26339, Republic of Korea.
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Reyes-García J, Montaño LM, Carbajal-García A, Wang YX. Sex Hormones and Lung Inflammation. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1304:259-321. [PMID: 34019274 DOI: 10.1007/978-3-030-68748-9_15] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Inflammation is a characteristic marker in numerous lung disorders. Several immune cells, such as macrophages, dendritic cells, eosinophils, as well as T and B lymphocytes, synthetize and release cytokines involved in the inflammatory process. Gender differences in the incidence and severity of inflammatory lung ailments including asthma, chronic obstructive pulmonary disease (COPD), pulmonary fibrosis (PF), lung cancer (LC), and infectious related illnesses have been reported. Moreover, the effects of sex hormones on both androgens and estrogens, such as testosterone (TES) and 17β-estradiol (E2), driving characteristic inflammatory patterns in those lung inflammatory diseases have been investigated. In general, androgens seem to display anti-inflammatory actions, whereas estrogens produce pro-inflammatory effects. For instance, androgens regulate negatively inflammation in asthma by targeting type 2 innate lymphoid cells (ILC2s) and T-helper (Th)-2 cells to attenuate interleukin (IL)-17A-mediated responses and leukotriene (LT) biosynthesis pathway. Estrogens may promote neutrophilic inflammation in subjects with asthma and COPD. Moreover, the activation of estrogen receptors might induce tumorigenesis. In this chapter, we summarize the most recent advances in the functional roles and associated signaling pathways of inflammatory cellular responses in asthma, COPD, PF, LC, and newly occurring COVID-19 disease. We also meticulously deliberate the influence of sex steroids on the development and progress of these common and severe lung diseases.
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Affiliation(s)
- Jorge Reyes-García
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, CDMX, Mexico City, Mexico.,Department of Molecular and Cellular Physiology, Albany Medical College, Albany, NY, USA
| | - Luis M Montaño
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, CDMX, Mexico City, Mexico
| | - Abril Carbajal-García
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, CDMX, Mexico City, Mexico
| | - Yong-Xiao Wang
- Department of Molecular and Cellular Physiology, Albany Medical College, Albany, NY, USA.
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The brominated flame retardants TBECH and DPTE alter prostate growth, histology and gene expression patterns in the mouse. Reprod Toxicol 2021; 102:43-55. [PMID: 33848595 DOI: 10.1016/j.reprotox.2021.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 03/22/2021] [Accepted: 04/07/2021] [Indexed: 10/21/2022]
Abstract
The brominated flame retardants (BFRs), 1,2-dibromo-4-(1,2 dibromoethyl)cyclohexane (TBECH) and 2,3-dibromopropyl-2,4,6-tribromophenyl ether (DPTE) bind to the androgen receptor (AR). in vitro bioassays have shown that TBECH is a potent androgen agonist while DPTE is a potent AR antagonist. Both TBECH and DPTE alter gene expression associated with AR regulation. However, it remains to be determined if TBECH and DPTE can affect the prostate. For this reason, we exposed CD1 mice to a 1:1 mixture of TBECH diastereomers α and β, a 1:1 mixture of γ and δ, and to DPTE, and tested their effects on prostate growth, histology and gene expression profiles. Castrated mice were used to study the androgenic effects of TBECHαβ and TBECHγδ while the antagonistic effects of DPTE were studied in non-castrated mice. We observed that testosterone and TBECHγδ increased body and prostate weights while TBECHαβ affected neither of them; and that DPTE had no effect on body weight but reduced prostate weight drastically. Histomorphometric analysis of the prostate revealed epithelial and glandular alterations in the TBECHγδ group comparable to those in testosterone group while alterations in the TBECHαβ group were less pronounced. DPTE displayed androgen antagonist activity reminiscent of castration. The transcription profile of the prostate was altered by castration and exposure to testosterone and to TBECHγδ reversed several of these changes. Testosterone and TBECHγδ also regulated the expression of several androgen responsive genes implicated in prostate growth and cancer. While DPTE resulted in a drastic reduction in prostate weight, it only affected a small number of genes. The results indicate that TBECHγδ and DPTE are of high human health concern as they may contribute to changes in prostate growth, histology and function.
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57
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Hamilton BR, Lima G, Barrett J, Seal L, Kolliari-Turner A, Wang G, Karanikolou A, Bigard X, Löllgen H, Zupet P, Ionescu A, Debruyne A, Jones N, Vonbank K, Fagnani F, Fossati C, Casasco M, Constantinou D, Wolfarth B, Niederseer D, Bosch A, Muniz-Pardos B, Casajus JA, Schneider C, Loland S, Verroken M, Marqueta PM, Arroyo F, Pedrinelli A, Natsis K, Verhagen E, Roberts WO, Lazzoli JK, Friedman R, Erdogan A, Cintron AV, Yung SHP, Janse van Rensburg DC, Ramagole DA, Rozenstoka S, Drummond F, Papadopoulou T, Kumi PYO, Twycross-Lewis R, Harper J, Skiadas V, Shurlock J, Tanisawa K, Seto J, North K, Angadi SS, Martinez-Patiño MJ, Borjesson M, Di Luigi L, Dohi M, Swart J, Bilzon JLJ, Badtieva V, Zelenkova I, Steinacker JM, Bachl N, Pigozzi F, Geistlinger M, Goulis DG, Guppy F, Webborn N, Yildiz BO, Miller M, Singleton P, Pitsiladis YP. Integrating Transwomen and Female Athletes with Differences of Sex Development (DSD) into Elite Competition: The FIMS 2021 Consensus Statement. Sports Med 2021; 51:1401-1415. [PMID: 33761127 PMCID: PMC7988249 DOI: 10.1007/s40279-021-01451-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/10/2021] [Indexed: 01/06/2023]
Abstract
Sport is historically designated by the binary categorization of male and female that conflicts with modern society. Sport’s governing bodies should consider reviewing rules determining the eligibility of athletes in the female category as there may be lasting advantages of previously high testosterone concentrations for transwomen athletes and currently high testosterone concentrations in differences in sex development (DSD) athletes. The use of serum testosterone concentrations to regulate the inclusion of such athletes into the elite female category is currently the objective biomarker that is supported by most available scientific literature, but it has limitations due to the lack of sports performance data before, during or after testosterone suppression. Innovative research studies are needed to identify other biomarkers of testosterone sensitivity/responsiveness, including molecular tools to determine the functional status of androgen receptors. The scientific community also needs to conduct longitudinal studies with specific control groups to generate the biological and sports performance data for individual sports to inform the fair inclusion or exclusion of these athletes. Eligibility of each athlete to a sport-specific policy needs to be based on peer-reviewed scientific evidence made available to policymakers from all scientific communities. However, even the most evidence-based regulations are unlikely to eliminate all differences in performance between cisgender women with and without DSD and transwomen athletes. Any remaining advantage held by transwomen or DSD women could be considered as part of the athlete’s unique makeup.
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Affiliation(s)
- Blair R Hamilton
- Centre for Stress and Age-Related Disease, University of Brighton, Brighton, UK
- The Gender Identity Clinic Tavistock and Portman NHS Foundation Trust, London, UK
| | - Giscard Lima
- Centre for Exercise Sciences and Sports Medicine, FIMS Collaborating Centre of Sports Medicine, Rome, Italy
- Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Rome, Italy
| | - James Barrett
- The Gender Identity Clinic Tavistock and Portman NHS Foundation Trust, London, UK
| | - Leighton Seal
- The Gender Identity Clinic Tavistock and Portman NHS Foundation Trust, London, UK
| | | | - Guan Wang
- Sport and Exercise Science and Sports Medicine Research and Enterprise Group, University of Brighton, Brighton, UK
| | - Antonia Karanikolou
- Centre for Stress and Age-Related Disease, University of Brighton, Brighton, UK
| | - Xavier Bigard
- Union Cycliste Internationale (UCI), Aigle, Switzerland
- European Federation of Sports Medicine Associations (EFSMA), Lausanne, Switzerland
- International Federation of Sports Medicine (FIMS), Lausanne, Switzerland
| | - Herbert Löllgen
- European Federation of Sports Medicine Associations (EFSMA), Lausanne, Switzerland
| | - Petra Zupet
- European Federation of Sports Medicine Associations (EFSMA), Lausanne, Switzerland
| | - Anca Ionescu
- European Federation of Sports Medicine Associations (EFSMA), Lausanne, Switzerland
| | - Andre Debruyne
- European Federation of Sports Medicine Associations (EFSMA), Lausanne, Switzerland
- International Federation of Sports Medicine (FIMS), Lausanne, Switzerland
| | - Nigel Jones
- British Association Sport and Exercise Medicine, Doncaster, UK
- British Cycling and University of Liverpool, Liverpool, UK
| | - Karin Vonbank
- Department of Pneumology, Pulmonary Function Laboratory, Medicine Clinic (KIMII), University of Vienna, Vienna, Austria
| | - Federica Fagnani
- Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Rome, Italy
| | - Chiara Fossati
- Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Rome, Italy
- Villa Stuart Sport Clinic, FIFA Medical Center of Excellence, Rome, Italy
| | - Maurizio Casasco
- European Federation of Sports Medicine Associations (EFSMA), Lausanne, Switzerland
- International Federation of Sports Medicine (FIMS), Lausanne, Switzerland
- Italian Federation of Sports Medicine (FMSI), Rome, Italy
| | - Demitri Constantinou
- International Federation of Sports Medicine (FIMS), Lausanne, Switzerland
- Centre for Exercise Science and Sports Medicine, University of the Witwatersrand, Johannesburg, South Africa
| | - Bernd Wolfarth
- International Federation of Sports Medicine (FIMS), Lausanne, Switzerland
- Department of Sports Medicine, Humboldt University and Charité University School of Medicine, Berlin, Germany
| | - David Niederseer
- Department of Cardiology, University Hospital Zurich, University Heart Centre, University of Zurich, Zurich, Switzerland
| | - Andrew Bosch
- Division of Exercise Science and Sports Medicine, University of Cape Town, Cape Town, South Africa
| | - Borja Muniz-Pardos
- GENUD Research Group, FIMS Collaborating Center of Sports Medicine, Department of Physiatry and Nursing, University of Zaragoza, Zaragoza, Spain
| | - José Antonio Casajus
- GENUD Research Group, FIMS Collaborating Center of Sports Medicine, Department of Physiatry and Nursing, University of Zaragoza, Zaragoza, Spain
| | - Christian Schneider
- International Federation of Sports Medicine (FIMS), Lausanne, Switzerland
- Orthopaedic Center Theresie, Munich, Germany
| | - Sigmund Loland
- Department of Sport and Social Sciences, Norwegian School of Sport Sciences, Oslo, Norway
| | - Michele Verroken
- Centre of Research and Innovation for Sport, Technology and Law (CRISTAL), De Montfort University, Leicester, UK
- Sporting Integrity Ltd, Stoke Mandeville, UK
| | - Pedro Manonelles Marqueta
- International Federation of Sports Medicine (FIMS), Lausanne, Switzerland
- Department of Sports Medicine, San Antonio Catholic University of Murcia, Murcia, Spain
| | - Francisco Arroyo
- International Federation of Sports Medicine (FIMS), Lausanne, Switzerland
- FIMS Collaborating Center of Sports Medicine, Guadalajara, Mexico
| | - André Pedrinelli
- International Federation of Sports Medicine (FIMS), Lausanne, Switzerland
- Department of Orthopaedics, University of São Paulo Medical School, São Paulo, Brazil
| | - Konstantinos Natsis
- European Federation of Sports Medicine Associations (EFSMA), Lausanne, Switzerland
- International Federation of Sports Medicine (FIMS), Lausanne, Switzerland
- Interbalkan Medical Center, FIMS Collaborating Center of Sports Medicine, Thessaloniki, Greece
- Department of Anatomy and Surgical Anatomy, Faculty of Health Sciences, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Evert Verhagen
- Amsterdam Collaboration on Health and Safety in Sports, Department of Public and Occupational Health, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - William O Roberts
- International Federation of Sports Medicine (FIMS), Lausanne, Switzerland
- Department of Family Medicine and Community Health, University of Minnesota, Minneapolis, USA
| | - José Kawazoe Lazzoli
- International Federation of Sports Medicine (FIMS), Lausanne, Switzerland
- Biomedical Institute, Fluminense Federal University Medical School, Niterói, Brazil
| | - Rogerio Friedman
- Universidade Federal do Rio Grande do Sul, Endocrine Unit, Hospital de Clinicas de Porto Alegre, Porto Alegre, Brazil
| | - Ali Erdogan
- International Federation of Sports Medicine (FIMS), Lausanne, Switzerland
- Gloria Sports Arena, FIMS Collaborating Centre of Sports Medicine, Antalya, Turkey
| | - Ana V Cintron
- International Federation of Sports Medicine (FIMS), Lausanne, Switzerland
- Puerto Rico Sports Medicine Federation, San Juan, Puerto Rico
| | - Shu-Hang Patrick Yung
- International Federation of Sports Medicine (FIMS), Lausanne, Switzerland
- Asian Federation of Sports Medicine (AFSM), Hong Kong Center of Sports Medicine and Sports Science, Hong Kong, China
| | | | - Dimakatso A Ramagole
- Section Sports Medicine, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Sandra Rozenstoka
- European Federation of Sports Medicine Associations (EFSMA), Lausanne, Switzerland
- International Federation of Sports Medicine (FIMS), Lausanne, Switzerland
- FIMS Collaboration Centre of Sports Medicine, Sports laboratory, Riga, Latvia
| | - Felix Drummond
- European Federation of Sports Medicine Associations (EFSMA), Lausanne, Switzerland
- International Federation of Sports Medicine (FIMS), Lausanne, Switzerland
- FIMS Collaboration Centre of Sports Medicine, Instituto de Medicina do Esporte, Porto Alegre, Brazil
| | - Theodora Papadopoulou
- European Federation of Sports Medicine Associations (EFSMA), Lausanne, Switzerland
- International Federation of Sports Medicine (FIMS), Lausanne, Switzerland
- Defence Medical Rehabilitation Centre, Stanford Hall, Loughborough, UK
| | - Paulette Y O Kumi
- Centre for Sports and Exercise Medicine, Queen Mary University of London, London, UK
| | - Richard Twycross-Lewis
- School of Engineering and Materials Science, Queen Mary University of London, London, UK
| | - Joanna Harper
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
| | | | | | - Kumpei Tanisawa
- Faculty of Sport Sciences, Waseda University, Tokorozawa, Japan
| | - Jane Seto
- Murdoch Children's Research Institute, Melbourne, VIC, Australia
- Department of Paediatrics, University of Melbourne, The Royal Children's Hospital, Melbourne, VIC, Australia
| | - Kathryn North
- Murdoch Children's Research Institute, Melbourne, VIC, Australia
- Department of Paediatrics, University of Melbourne, The Royal Children's Hospital, Melbourne, VIC, Australia
| | - Siddhartha S Angadi
- Department of Kinesiology, School of Education and Human Development, University of Virginia, Charlottesville, VA, USA
| | | | - Mats Borjesson
- International Federation of Sports Medicine (FIMS), Lausanne, Switzerland
- Department of Molecular and Clinical Medicine, Sahlgrenska Academy, Center for Health and Performance, Goteborg University, Göteborg, Sweden
- Sahlgrenska University Hospital/Ostra, Region of Western Sweden, Göteborg, Sweden
| | - Luigi Di Luigi
- International Federation of Sports Medicine (FIMS), Lausanne, Switzerland
- Unit of Endocrinology, Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Rome, Italy
| | - Michiko Dohi
- International Federation of Sports Medicine (FIMS), Lausanne, Switzerland
- Sport Medical Center, Japan Institute of Sports Sciences, Tokyo, Japan
| | - Jeroen Swart
- International Federation of Sports Medicine (FIMS), Lausanne, Switzerland
- UCT Research Unit for Exercise Science and Sports Medicine, Cape Town, South Africa
| | - James Lee John Bilzon
- International Federation of Sports Medicine (FIMS), Lausanne, Switzerland
- Department for Health, University of Bath, Bath, UK
| | - Victoriya Badtieva
- International Federation of Sports Medicine (FIMS), Lausanne, Switzerland
- I.M. Sechenov First Moscow State Medical University (Sechenov University), Ministry of Health of Russia, Moscow, Russian Federation
- Moscow Research and Practical Center for Medical Rehabilitation, Restorative and Sports Medicine, Moscow Healthcare Department, Moscow, Russian Federation
| | - Irina Zelenkova
- GENUD Research Group, FIMS Collaborating Center of Sports Medicine, Department of Physiatry and Nursing, University of Zaragoza, Zaragoza, Spain
| | - Juergen M Steinacker
- European Federation of Sports Medicine Associations (EFSMA), Lausanne, Switzerland
- International Federation of Sports Medicine (FIMS), Lausanne, Switzerland
- Division of Sports and Rehabilitation Medicine, Ulm University Hospital, Ulm, Germany
| | - Norbert Bachl
- European Federation of Sports Medicine Associations (EFSMA), Lausanne, Switzerland
- International Federation of Sports Medicine (FIMS), Lausanne, Switzerland
- Institute of Sports Science, University of Vienna, Vienna, Austria
- Austrian Institute of Sports Medicine, Vienna, Austria
| | - Fabio Pigozzi
- Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Rome, Italy
- European Federation of Sports Medicine Associations (EFSMA), Lausanne, Switzerland
- International Federation of Sports Medicine (FIMS), Lausanne, Switzerland
- Villa Stuart Sport Clinic, FIFA Medical Center of Excellence, Rome, Italy
| | - Michael Geistlinger
- International Federation of Sports Medicine (FIMS), Lausanne, Switzerland
- Unit of International Law, Department of Constitutional, International and European Law, University of Salzburg, Salzburg, Salzburg, Austria
| | - Dimitrios G Goulis
- Unit of Reproductive Endocrinology, 1st Department of Obstetrics and Gynecology, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Fergus Guppy
- Centre for Stress and Age-Related Disease, University of Brighton, Brighton, UK
- School of Pharmacy and Biomolecular Sciences, University of Brighton, Brighton, UK
| | - Nick Webborn
- School of Sport and Service Management, University of Brighton, Eastbourne, UK
| | - Bulent O Yildiz
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Hacettepe University School of Medicine, 06100, Ankara, Turkey
| | - Mike Miller
- World Olympian Association, Lausanne, Switzerland
| | | | - Yannis P Pitsiladis
- Centre for Exercise Sciences and Sports Medicine, FIMS Collaborating Centre of Sports Medicine, Rome, Italy.
- Centre for Stress and Age-Related Disease, University of Brighton, Brighton, UK.
- Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Rome, Italy.
- European Federation of Sports Medicine Associations (EFSMA), Lausanne, Switzerland.
- International Federation of Sports Medicine (FIMS), Lausanne, Switzerland.
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Wang J, Wang L. The therapeutic effect of dehydroepiandrosterone (DHEA) on vulvovaginal atrophy. Pharmacol Res 2021; 166:105509. [PMID: 33610719 DOI: 10.1016/j.phrs.2021.105509] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 02/16/2021] [Accepted: 02/16/2021] [Indexed: 01/23/2023]
Abstract
Vulvovaginal atrophy (VVA) is a chronic disease that mostly occurs in postmenopausal women. After menopause, insufficient sex hormones affect the anatomy of the vagina and cause drastic physiological changes. The main histopathological studies of VVA show that postmenopausal estrogen deficiency can lead to the increase of intermediate/parabasal cells, resulting in the loss of lactobacillus, elasticity and lubricity, vaginal epithelial atrophy, pain, dryness. Although the role of estrogen hormones in the treatment of VVA has always been in the past, it is now widely accepted that it also depends on androgens. Estrogen drugs have many side effects. So, Dehydroepiandrosterone(DHEA)is promising for the treatment of VVA, especially when women with contraindications to estrogen have symptoms. This review is expected to understand the latest developments in VVA and the efficacy of DHEA.
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Affiliation(s)
- Jing Wang
- Laboratory for Reproductive Immunology, Hospital & Institute of Obstetrics and Gynecology, Shanghai Medical College, Fudan University, Shanghai, China; The Academy of Integrative Medicine, Fudan University, Shanghai, China; Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases, Shanghai, China
| | - Ling Wang
- Laboratory for Reproductive Immunology, Hospital & Institute of Obstetrics and Gynecology, Shanghai Medical College, Fudan University, Shanghai, China; The Academy of Integrative Medicine, Fudan University, Shanghai, China; Shanghai Key Laboratory of Female Reproductive Endocrine-related Diseases, Shanghai, China.
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59
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Kumar S, Prajapati KS, Singh AK, Kushwaha PP, Shuaib M, Gupta S. Long non-coding RNA regulating androgen receptor signaling in breast and prostate cancer. Cancer Lett 2021; 504:15-22. [PMID: 33556545 DOI: 10.1016/j.canlet.2020.11.039] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 11/04/2020] [Accepted: 11/26/2020] [Indexed: 02/05/2023]
Abstract
The human genome transcribe an array of RNAs that do not encode proteins and may act as mediators in the regulation of gene expression. Long non-coding RNAs (lncRNAs) are a group of non-coding RNAs consisting of more than 200 nucleotides of RNA transcripts that play important role in tumor development. Numerous lncRNAs have been characterized as functional transcripts associated with several biological processes and pathologic stages. Although the biological function and molecular mechanisms of lncRNAs remains to be explored, recent studies demonstrate aberrant expression of several lncRNAs linked with various human cancers. The present review summarizes the current knowledge of lncRNA expression patterns and mechanisms that contribute to carcinogenesis. In particular, we focus on lncRNAs regulating androgen receptor signaling pathways in prostate and breast cancer subtype having prognostic and therapeutic implications.
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Affiliation(s)
- Shashank Kumar
- Department of Biochemistry, Drug Discovery and Therapeutic Laboratory, Central University of Punjab, Bathinda, 151401, India.
| | - Kumari Sunita Prajapati
- Department of Biochemistry, Drug Discovery and Therapeutic Laboratory, Central University of Punjab, Bathinda, 151401, India
| | - Atul Kumar Singh
- Department of Biochemistry, Drug Discovery and Therapeutic Laboratory, Central University of Punjab, Bathinda, 151401, India
| | - Prem Prakash Kushwaha
- Department of Biochemistry, Drug Discovery and Therapeutic Laboratory, Central University of Punjab, Bathinda, 151401, India
| | - Mohd Shuaib
- Department of Biochemistry, Drug Discovery and Therapeutic Laboratory, Central University of Punjab, Bathinda, 151401, India
| | - Sanjay Gupta
- Department of Urology, Case Western Reserve University, Cleveland, OH, 44106, USA; The Urology Institute, University Hospitals Cleveland Medical Center, Cleveland, OH, 44106, USA; Department of Nutrition, Case Western Reserve University, Cleveland, OH, 44106, USA; Division of General Medical Sciences, Case Comprehensive Cancer Center, Cleveland, OH, 44106, USA; Department of Urology, Louis Stokes Cleveland Veterans Affairs Medical Center, Cleveland, OH, 44106, USA.
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60
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Kang SM, Jung HS, Kwon MJ, Lee SH, Park JH. Testosterone Protects Pancreatic β-cells from Apoptosis and Stress-Induced Accelerated Senescence. World J Mens Health 2021; 39:724-732. [PMID: 33474846 PMCID: PMC8443983 DOI: 10.5534/wjmh.200169] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 10/06/2020] [Accepted: 10/19/2020] [Indexed: 12/22/2022] Open
Abstract
Purpose Androgens are steroid hormones that are very important in the sexual development and the maintenance of male reproductive system, and also have diverse actions in non-reproductive tissues, including potent antioxidant capacity. Type 2 diabetes mellitus is caused by tissue insulin resistance and insufficient insulin secretion from the pancreatic β-cells. The progressive decline of pancreatic β-cells in diabetes is closely related with the severity of disease. We wanted to know whether dihydrotestosterone (DHT) can protect insulin secreting pancreatic β-cells from apoptosis and accelerated senescence induced by oxidative stress. Materials and Methods Cultured INS-1 cells were used. Various concentrations of H2O2 were applied to exert oxidative stresses. The degrees of apoptosis, accelerated senescence, and the changes of the expressions of related signaling molecules after the application of DHT were analyzed by CCK-8, p16 expression, SA-β-Gal staining, reverse transcription polymerase chain reactions and Western blots. Results The application of H2O2 significantly increased (p<0.05) the degree of senescence and apoptosis of cultured INS-1 β-cells. DHT not only showed anti-oxidant protective capacity, but also significantly reduced (p<0.05) the degree of accelerated senescence. Conclusions DHT effectively protects pancreatic islet INS-1 β-cells from H2O2 induced oxidative stress.
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Affiliation(s)
- Seon Mee Kang
- Department of Internal Medicine, Inje University Busan Paik Hospital, College of Medicine, Inje University, Busan, Korea.,Paik Institute for Clinical Research, Inje University, Busan, Korea
| | - Hye Sook Jung
- Paik Institute for Clinical Research, Inje University, Busan, Korea
| | - Min Jeong Kwon
- Department of Internal Medicine, Inje University Busan Paik Hospital, College of Medicine, Inje University, Busan, Korea
| | - Soon Hee Lee
- Department of Internal Medicine, Inje University Busan Paik Hospital, College of Medicine, Inje University, Busan, Korea.
| | - Jeong Hyun Park
- Department of Internal Medicine, Inje University Busan Paik Hospital, College of Medicine, Inje University, Busan, Korea.,Paik Institute for Clinical Research, Inje University, Busan, Korea
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Adiba M, Das T, Paul A, Das A, Chakraborty S, Hosen MI, Nabi AN. In silico characterization of coding and non-coding SNPs of the androgen receptor gene. INFORMATICS IN MEDICINE UNLOCKED 2021. [DOI: 10.1016/j.imu.2021.100556] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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Afshari A, Janfeshan S, Yaghobi R, Roozbeh J, Azarpira N. Covid-19 pathogenesis in prostatic cancer and TMPRSS2-ERG regulatory genetic pathway. INFECTION GENETICS AND EVOLUTION 2020; 88:104669. [PMID: 33301988 PMCID: PMC7720011 DOI: 10.1016/j.meegid.2020.104669] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 11/09/2020] [Accepted: 12/04/2020] [Indexed: 12/11/2022]
Abstract
Members of Coronaviridae family have been the source of respiratory illnesses. The outbreak of SARS-CoV-2 that produced a severe lung disease in afflicted patients in China and other countries was the reason for the incredible attention paid toward this viral infection. It is known that SARS-CoV-2 is dependent on TMPRSS2 activity for entrance and subsequent infection of the host cells and TMPRSS2 is a host cell molecule that is important for the spread of viruses such as coronaviruses. Different factors can increase the risk of prostate cancer, including older age, a family history of the disease. Androgen receptor (AR) initiates a transcriptional cascade which plays a serious role in both normal and malignant prostate tissues. TMPRSS2 protein is highly expressed in prostate secretory epithelial cells, and its expression is dependent on androgen signals. One of the molecular signs of prostate cancer is TMPRSS2-ERG gene fusion. In TMPRSS2-ERG-positive prostate cancers different patterns of changed gene expression can be detected. The possible molecular relation between fusion positive prostate cancer patients and the increased risk of lethal respiratory viral infections especially SARS-CoV-2 can candidate TMPRSS2 as an attractive drug target. The studies show that some molecules such as nicotinamide, PARP1, ETS and IL-1R can be studied deeper in order to control SARS-CoV-2 infection especially in prostate cancer patients. This review attempts to investigate the possible relation between the gene expression pattern that is produced through TMPRSS2-ERG fusion positive prostate cancer and the possible influence of these fluctuations on the pathogenesis and development of viral infections such as SARS-CoV-2.
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Affiliation(s)
- Afsoon Afshari
- Shiraz Nephro-Urology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Shiraz Transplant Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Sahar Janfeshan
- Shiraz Nephro-Urology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ramin Yaghobi
- Shiraz Nephro-Urology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Shiraz Transplant Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Jamshid Roozbeh
- Shiraz Nephro-Urology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Negar Azarpira
- Shiraz Transplant Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
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Machek SB, Cardaci TD, Wilburn DT, Willoughby DS. Considerations, possible contraindications, and potential mechanisms for deleterious effect in recreational and athletic use of selective androgen receptor modulators (SARMs) in lieu of anabolic androgenic steroids: A narrative review. Steroids 2020; 164:108753. [PMID: 33148520 DOI: 10.1016/j.steroids.2020.108753] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 10/07/2020] [Accepted: 10/17/2020] [Indexed: 12/12/2022]
Abstract
Anabolic androgenic steroids (AAS) are testosterone and testosterone-derivative compounds sporadically employed by athletes and increasingly used recreationally to acquire a competitive edge or improve body composition. Nevertheless, users are subject to undesired side effects majorly associated with tissue-specific androgen receptor (AR) binding-mediated actions. More recently, selective AR modulators (SARMs) have gained popularity towards delivering androgen-associated anabolic actions with hopes of minimal androgenic effects. While several SARMs are in preclinical and clinical phases intended for demographics subject to hypogonadism, muscle wasting, and osteoporosis, several athletic organizations and drug testing affiliates have realized the increasingly widespread use of SARMs amongst competitors and have subsequently banned their use. Furthermore, recreational users are haphazardly acquiring these compounds from the internet and consuming doses several times greater than empirically reported. Unfortunately, online sources are rife with potential contamination, despite a prevailing public opinion suggesting SARMs are innocuous AAS alternatives. Considering each agent has a broad range of supporting evidence in both human and non-human models, it is important to comprehensively evaluate the current literature on commercially available SARMs to gain better understanding of their efficacy and if they can truly be considered a safer AAS alternative. Therefore, the purpose of this review is to discuss the current evidence regarding AAS and SARM mechanisms of action, demonstrate the efficacy of several prominent SARMs in a variety of scientific trials, and theorize on the wide-ranging contraindications and potential deleterious effects, as well as potential future directions regarding acute and chronic SARM use across a broad range of demographics.
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Affiliation(s)
- Steven B Machek
- Exercise & Biochemical Nutrition Laboratory, Department of Health, Human Performance, and Recreation. Robbins College of Health and Human Sciences, Baylor University, Waco, TX, USA
| | - Thomas D Cardaci
- Exercise & Biochemical Nutrition Laboratory, Department of Health, Human Performance, and Recreation. Robbins College of Health and Human Sciences, Baylor University, Waco, TX, USA; Department of Exercise Science, Arnold School of Public Health, University of South Carolina, Columbia, SC, USA
| | - Dylan T Wilburn
- Exercise & Biochemical Nutrition Laboratory, Department of Health, Human Performance, and Recreation. Robbins College of Health and Human Sciences, Baylor University, Waco, TX, USA
| | - Darryn S Willoughby
- Mayborn College of Health Sciences, School of Exercise and Sport Science, University of Mary Hardin-Baylor, Belton, TX, USA.
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Dror CM, Chi KN. Apalutamide for the treatment of metastatic castration-sensitive prostate cancer. Future Oncol 2020; 16:2905-2916. [DOI: 10.2217/fon-2020-0557] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Prostate cancer is the fifth leading cause of cancer-related death among men with the majority of deaths linked to metastatic disease. Accumulating clinical data have confirmed the substantial survival benefit of the addition of docetaxel or androgen signaling inhibitors to androgen deprivation therapy for the treatment of metastatic castration-sensitive prostate cancer (mCSPC). Apalutamide, a next-generation androgen receptor inhibitor, has recently been shown to provide an added survival benefit in the treatment of mCSPC and consequently approved for this indication. This review summarizes the body of evidence with regards to the preclinical activity and clinical efficacy of apalutamide with a specific focus on its efficacy in the treatment of mCSPC.
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Affiliation(s)
| | - Kim Nguyen Chi
- BC Cancer & Vancouver Prostate Centre, Vancouver, Canada
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Zhou Y, Shen L, Dong B, Liu C, Lv W, Chi J, Che K, Gao Y, Wang Y, Wang Y. Elevated circulating luteinizing hormone levels are associated with diabetic macroalbuminuria in Chinese men and postmenopausal women: A cross-sectional study. J Diabetes 2020; 12:819-833. [PMID: 32475064 DOI: 10.1111/1753-0407.13073] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 05/16/2020] [Accepted: 05/27/2020] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Associations between sex hormones and diabetic vascular complications have recently been studied, but the role luteinizing hormone (LH) plays in diabetic kidney disease (DKD) remains uncertain. We aimed to investigate the relationship of LH and DKD in Chinese men and postmenopausal women with type 2 diabetes mellitus (T2DM). METHODS Data were collected from 1775 T2DM men and postmenopausal women in hospital. The odds ratios (OR) and corresponding 95% confidence intervals (CI) in relation to LH quartiles were obtained by multiple logistic regression analysis. RESULTS LH levels were significantly higher in patients with macroalbuminuria than in those with microalbuminuria, but were not higher in patients with microalbuminuria than in those with normoalbuminuria. Consistently, LH in those with an estimated glomerular filtration rate (eGFR) < 60 mL/min/1.73m2 were significantly higher than in those with eGFR≥60 mL/min/1.73m2 . The prevalence of macroalbuminuria was obviously increased for subjects of the fourth quartile of LH vs the first to third quartile (20.4% vs 6.2%, 8.0%, 12.2% in men; 25.3% vs 5.5%, 3.8%, 9.3% in postmenopausal women). Multivariate logistic regression demonstrated that subjects within the highest quartile of LH had higher odds of macroalbuminuria than those within the lowest quartile (OR 4.00, 95% CI, 1.87-8.55 for men; OR 9.62, 95% CI, 3.42-27.08 for postmenopausal women), independent of age, diabetes duration, or other metabolic factors. The area under the curve for detecting macroalbuminuria based on LH was 0.662 for men, and 0.767 for postmenopausal women. CONCLUSION High LH levels are positively associated with established DKD among Chinese men and postmenopausal women. Elevated LH may be a promising clinical factor for identifying established DKD.
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Affiliation(s)
- Yue Zhou
- Department of Endocrinology, Affiliated Hospital of Medical College Qingdao University, Qingdao, China
| | - Liyan Shen
- Department of Endocrinology, Affiliated Hospital of Medical College Qingdao University, Qingdao, China
| | - Bingzi Dong
- Department of Endocrinology, Affiliated Hospital of Medical College Qingdao University, Qingdao, China
| | - Chuanfeng Liu
- Department of Endocrinology, Affiliated Hospital of Medical College Qingdao University, Qingdao, China
| | - Wenshan Lv
- Department of Endocrinology, Affiliated Hospital of Medical College Qingdao University, Qingdao, China
| | - Jingwei Chi
- Department of Endocrinology, Affiliated Hospital of Medical College Qingdao University, Qingdao, China
| | - Kui Che
- Department of Endocrinology, Affiliated Hospital of Medical College Qingdao University, Qingdao, China
| | - Yanyan Gao
- Department of Endocrinology, Affiliated Hospital of Medical College Qingdao University, Qingdao, China
| | - Yunyang Wang
- Department of Endocrinology, Affiliated Hospital of Medical College Qingdao University, Qingdao, China
| | - Yangang Wang
- Department of Endocrinology, Affiliated Hospital of Medical College Qingdao University, Qingdao, China
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The Androgen Receptor in Prostate Cancer: Effect of Structure, Ligands and Spliced Variants on Therapy. Biomedicines 2020; 8:biomedicines8100422. [PMID: 33076388 PMCID: PMC7602609 DOI: 10.3390/biomedicines8100422] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 10/08/2020] [Accepted: 10/13/2020] [Indexed: 12/16/2022] Open
Abstract
The androgen receptor (AR) plays a predominant role in prostate cancer (PCa) pathology. It consists of an N-terminal domain (NTD), a DNA-binding domain (DBD), a hinge region (HR), and a ligand-binding domain (LBD) that binds androgens, including testosterone (T) and dihydrotestosterone (DHT). Ligand binding at the LBD promotes AR dimerization and translocation to the nucleus where the DBD binds target DNA. In PCa, AR signaling is perturbed by excessive androgen synthesis, AR amplification, mutation, or the formation of AR alternatively spliced variants (AR-V) that lack the LBD. Current therapies for advanced PCa include androgen synthesis inhibitors that suppress T and/or DHT synthesis, and AR inhibitors that prevent ligand binding at the LBD. However, AR mutations and AR-Vs render LBD-specific therapeutics ineffective. The DBD and NTD are novel targets for inhibition as both perform necessary roles in AR transcriptional activity and are less susceptible to AR alternative splicing compared to the LBD. DBD and NTD inhibition can potentially extend patient survival, improve quality of life, and overcome predominant mechanisms of resistance to current therapies. This review discusses various small molecule and other inhibitors developed against the DBD and NTD—and the current state of the available compounds in clinical development.
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Genetic Variation in the Androgen Receptor Modifies the Association Between Testosterone and Vitality in Middle-Aged Men. J Sex Med 2020; 17:2351-2361. [PMID: 33011098 DOI: 10.1016/j.jsxm.2020.08.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 08/14/2020] [Accepted: 08/24/2020] [Indexed: 11/20/2022]
Abstract
BACKGROUND Low vitality is a common symptom of testosterone deficiency; however, clinical trial results remain inconclusive regarding the responsiveness of this symptom to hormone replacement. AIM The aim of the present study was to determine if the relationship between circulating testosterone levels and vitality would be moderated by the CAG repeat length in the androgen receptor (AR) gene, which influences the receptor's sensitivity to testosterone. METHODS We examined 676 men in the Vietnam Era Twin Study of Aging when they were, on average, 55.4 years old (SD = 2.5). Salivary testosterone levels were measured by using 3 samples collected at waking on 3 nonconsecutive days. The average testosterone level was classified as low, normal, or high based on 1-SD cutoffs. Analyses were conducted using multilevel, mixed linear models, which accounted for the nonindependence of the twin data, and adjusted for the effects of age, ethnicity, BMI, chronic health conditions, depressive symptoms, and sleep quality. OUTCOMES Vitality was measured using the 36-item Short Form (SF-36) vitality subscale. RESULTS We observed a significant interaction between salivary testosterone and the AR-CAG repeat length. When the repeat length was short, men with low testosterone had significantly lower vitality. As the AR-CAG repeat length increased, the magnitude of the testosterone effect decreased. CLINICAL TRANSLATION The observed interaction between testosterone and variation in the AR gene suggests that men with more sensitive ARs, as indicated by a shorter AR-CAG repeat, are more likely to experience symptoms of age-related testosterone deficiency. STRENGTHS & LIMITATIONS Strengths of the present study include our use of a large community-based sample, the use of multiple testosterone measurements, and the availability of a comprehensive set of covariates that may impact the association of interest. Limitations include the homogeneous nature of the sample with respect to ethnicity, the brevity of the 36-item Short Form vitality subscale, and our inability to establish change in testosterone levels because of the cross-sectional nature of data. CONCLUSIONS The association between testosterone and vitality appears to be clinically meaningful and is in part dependent on variation in the AR gene. Panizzon MS, Bree K, Hsieh T-C, et al. Genetic Variation in the Androgen Receptor Modifies the Association Between Testosterone and Vitality in Middle-Aged Men. J Sex Med 2020;17:2351-2361.
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Al-Othman N, Ahram M, Alqaraleh M. Role of androgen and microRNA in triple-negative breast cancer. Breast Dis 2020; 39:15-27. [PMID: 31839601 DOI: 10.3233/bd-190416] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Breast cancer (BC) is the most frequent type of malignancy affecting females worldwide. Molecular-based studies resulted in an identification of at least four subtypes of breast carcinoma, including luminal A and luminal B, Human growth factor receptor (HER-2)-enriched and triple-negative tumors (basal-like and normal breast-like). A proportion of BC cases are of the triple-negative breast cancer (TNBC) type. TNBC lacks the expression of estrogen receptor (ER), progesterone receptor (PR), and HER-2, and is known to express androgen receptor (AR) at considerable levels. AR has been shown to promote the progression of TNBC. However, the exact mechanisms have yet to be unraveled. One of these mechanisms could be through regulating the expression of microRNA (miRNA) molecules, which play an important regulatory role in BC through post-transcriptional gene silencing. Activation of AR controls the expression of miRNA molecules, which target selective mRNAs, consequently, affecting protein expression. In this review we attempt to elucidate the relations between AR and miRNA in TNBC.
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Affiliation(s)
- Nihad Al-Othman
- Division of Anatomy, Biochemistry and Genetic, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, Palestine
| | - Mamoun Ahram
- Department of Physiology and Biochemistry, School of Medicine, The University of Jordan, Amman, Jordan
| | - Moath Alqaraleh
- Department of Biological Sciences, School of Science, The University of Jordan, Amman, Jordan
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Lin C, Chou FJ, Lu J, Lin W, Truong M, Tian H, Sun Y, Luo J, Yang R, Niu Y, Nadal R, Antonarakis ES, Cordon-Cardo C, Sahasrabudhe D, Huang CP, Yeh S, Li G, Chang C. Preclinical studies show using enzalutamide is less effective in docetaxel-pretreated than in docetaxel-naïve prostate cancer cells. Aging (Albany NY) 2020; 12:17694-17712. [PMID: 32920545 PMCID: PMC7521536 DOI: 10.18632/aging.103917] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 07/25/2020] [Indexed: 01/24/2023]
Abstract
Anti-androgen therapy with Enzalutamide (Enz) has been used as a therapy for castration resistant prostate cancer (CRPC) patients after development of resistance to chemotherapy with Docetaxel (Doc). The potential impacts of Doc-chemotherapy on the subsequent Enz treatment, however, remain unclear. Here we found the overall survival rate of patients that received Enz was significantly less in patients that received prior Doc-chemotherapy than those who had not. In vitro studies from 3 established Doc resistant CRPC (DocRPC) cell lines are consistent with the clinical findings showing DocRPC patients had decreased Enz-sensitivity as well as accelerated development of Enz-resistance via enhanced androgen receptor (AR) splicing variant 7 (ARv7) expression. Mechanism dissection found that Doc treatment might increase the generation of ARv7 via altering the MALAT1-SF2 RNA splicing complex. Preclinical studies using in vivo mouse models and in vitro cell lines proved that targeting the MALAT1/SF2/ARv7 axis with small molecules, including siMALAT1, shSF2, and shARv7 or ARv7 degradation enhancers: Cisplatin or ASC-J9®, can restore/increase the Enz sensitivity to further suppress DocRPC cell growth. Therefore, combined therapy of Doc-chemotherapy with anti-ARv7 therapy, including Cisplatin or ASC-J9®, may be developed to increase the efficacy of Enz to further suppress DocRPC in patients.
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Affiliation(s)
- Changyi Lin
- George Whipple Lab for Cancer Research, Departments of Pathology, Urology, Radiation Oncology and The Wilmot Cancer Institute, University of Rochester, Rochester, NY 14642, USA
| | - Fu-Ju Chou
- George Whipple Lab for Cancer Research, Departments of Pathology, Urology, Radiation Oncology and The Wilmot Cancer Institute, University of Rochester, Rochester, NY 14642, USA
| | - Jieyang Lu
- George Whipple Lab for Cancer Research, Departments of Pathology, Urology, Radiation Oncology and The Wilmot Cancer Institute, University of Rochester, Rochester, NY 14642, USA
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, China
| | - Wanying Lin
- George Whipple Lab for Cancer Research, Departments of Pathology, Urology, Radiation Oncology and The Wilmot Cancer Institute, University of Rochester, Rochester, NY 14642, USA
| | - Matthew Truong
- George Whipple Lab for Cancer Research, Departments of Pathology, Urology, Radiation Oncology and The Wilmot Cancer Institute, University of Rochester, Rochester, NY 14642, USA
| | - Hao Tian
- George Whipple Lab for Cancer Research, Departments of Pathology, Urology, Radiation Oncology and The Wilmot Cancer Institute, University of Rochester, Rochester, NY 14642, USA
- Chawnshang Chang Sex Hormone Research Center, Tianjin Institute of Urology, Tianjin Medical University, Tianjin 300211, China
| | - Yin Sun
- George Whipple Lab for Cancer Research, Departments of Pathology, Urology, Radiation Oncology and The Wilmot Cancer Institute, University of Rochester, Rochester, NY 14642, USA
| | - Jie Luo
- George Whipple Lab for Cancer Research, Departments of Pathology, Urology, Radiation Oncology and The Wilmot Cancer Institute, University of Rochester, Rochester, NY 14642, USA
| | - Rachel Yang
- George Whipple Lab for Cancer Research, Departments of Pathology, Urology, Radiation Oncology and The Wilmot Cancer Institute, University of Rochester, Rochester, NY 14642, USA
| | - Yuanjie Niu
- George Whipple Lab for Cancer Research, Departments of Pathology, Urology, Radiation Oncology and The Wilmot Cancer Institute, University of Rochester, Rochester, NY 14642, USA
- Chawnshang Chang Sex Hormone Research Center, Tianjin Institute of Urology, Tianjin Medical University, Tianjin 300211, China
| | - Rosa Nadal
- Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD 21231, USA
| | | | - Carlos Cordon-Cardo
- Department of Pathology, Mount Sinai School of Medicine, New York, NY 10029, USA
| | - Deepak Sahasrabudhe
- George Whipple Lab for Cancer Research, Departments of Pathology, Urology, Radiation Oncology and The Wilmot Cancer Institute, University of Rochester, Rochester, NY 14642, USA
| | - Chi-Ping Huang
- Sex Hormone Research Center, Department of Urology, China Medical University and Hospital, Taichung 404, Taiwan
| | - Shuyuan Yeh
- George Whipple Lab for Cancer Research, Departments of Pathology, Urology, Radiation Oncology and The Wilmot Cancer Institute, University of Rochester, Rochester, NY 14642, USA
| | - Gonghui Li
- Department of Urology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, China
| | - Chawnshang Chang
- George Whipple Lab for Cancer Research, Departments of Pathology, Urology, Radiation Oncology and The Wilmot Cancer Institute, University of Rochester, Rochester, NY 14642, USA
- Sex Hormone Research Center, Department of Urology, China Medical University and Hospital, Taichung 404, Taiwan
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Matos B, Howl J, Jerónimo C, Fardilha M. The disruption of protein-protein interactions as a therapeutic strategy for prostate cancer. Pharmacol Res 2020; 161:105145. [PMID: 32814172 DOI: 10.1016/j.phrs.2020.105145] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 08/11/2020] [Accepted: 08/11/2020] [Indexed: 12/14/2022]
Abstract
Prostate cancer (PCa) is one of the most common male-specific cancers worldwide, with high morbidity and mortality rates associated with advanced disease stages. The current treatment options of PCa are prostatectomy, hormonal therapy, chemotherapy or radiotherapy, the selection of which is usually dependent upon the stage of the disease. The development of PCa to a castration-resistant phenotype (CRPC) is associated with a more severe prognosis requiring the development of a new and effective therapy. Protein-protein interactions (PPIs) have been recognised as an emerging drug modality and targeting PPIs is a promising therapeutic approach for several diseases, including cancer. The efficacy of several compounds in which target PPIs and consequently impair disease progression were validated in phase I/II clinical trials for different types of cancer. In PCa, various small molecules and peptides proved successful in inhibiting important PPIs, mainly associated with the androgen receptor (AR), Bcl-2 family proteins, and kinases/phosphatases, thus impairing the growth of PCa cells in vitro. Moreover, a majority of these compounds require further validation in vivo and, preferably, in clinical trials. In addition, several other PPIs associated with PCa progression have been identified and now require experimental validation as potential therapeutic loci. In conclusion, we consider the disruption of PPIs to be a promising though challenging therapeutic strategy for PCa. Agents which modulate PPIs might be employed as a monotherapy or as an adjunct to classical chemotherapeutics to overcome drug resistance and improve efficacy. The discovery of new PPIs with important roles in disease progression, and of novel optimized strategies to target them are major challenges for the scientific and pharmacological communities.
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Affiliation(s)
- Bárbara Matos
- Laboratory of Signal Transduction, Department of Medical Sciences, Institute of Biomedicine - iBiMED, University of Aveiro, 3810-193, Aveiro, Portugal
| | - John Howl
- Molecular Pharmacology Group, Research Institute in Healthcare Science, University of Wolverhampton, Wolverhampton WV1 1LY, UK
| | - Carmen Jerónimo
- Cancer Biology and Epigenetics Group, IPO Porto Research Center (CI-IPOP), Portuguese Institute of Oncology of Porto (IPO Porto), Research Center-LAB 3, F Bdg., 1st Floor, Rua Dr. António Bernardino de Almeida, 4200-072 Porto, Portugal; Department of Pathology and Molecular Immunology, Institute of Biomedical Sciences Abel Salazar- University of Porto (ICBAS-UP), Porto, Portugal
| | - Margarida Fardilha
- Laboratory of Signal Transduction, Department of Medical Sciences, Institute of Biomedicine - iBiMED, University of Aveiro, 3810-193, Aveiro, Portugal.
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71
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Ito-Harashima S, Matano M, Onishi K, Nomura T, Nakajima S, Ebata S, Shiizaki K, Kawanishi M, Yagi T. Construction of reporter gene assays using CWP and PDR mutant yeasts for enhanced detection of various sex steroids. Genes Environ 2020; 42:20. [PMID: 32514322 PMCID: PMC7251871 DOI: 10.1186/s41021-020-00159-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 05/16/2020] [Indexed: 12/21/2022] Open
Abstract
Background Sex steroid hormone receptors are classified into three classes of receptors: estrogen receptors (ER) α and β, androgen receptor (AR), and progesterone receptor (PR). They belong to the nuclear receptor superfamily and activate their downstream genes in a ligand-dependent manner. Since sex steroid hormones are involved in a wide variety of physiological processes and cancer development, synthetic chemical substances that exhibit sex steroid hormone activities have been applied as pharmaceuticals and consumed in large amounts worldwide. They are potentially hazardous contaminants as endocrine disruptors in the environment because they may induce inappropriate gene expression mediated by sex steroid hormone receptors in vivo. Results To develop simple reporter gene assays with enhanced sensitivity for the detection of sex steroid hormones, we newly established mutant yeast strains lacking the CWP and PDR genes encoding cell wall mannoproteins and plasma membrane drug efflux pumps, respectively, and expressing human ERα, ERβ, AR, and PR. Reporter gene assays with mutant yeast strains responded to endogenous and synthetic ligands more strongly than those with wild-type strains. Sex steroid hormone activities in some pharmaceutical oral tablets and human urine were also detectable in these yeast assays. Conclusions Yeast reporter gene assay systems for all six steroid hormone receptors, including previously established glucocorticoid receptor (GR) and mineralocorticoid receptor (MR) assay yeasts, are now available. Environmental endocrine disrupters with steroid hormone activity will be qualitatively detectable by simple and easy procedures. The yeast-based reporter gene assay will be valuable as a primary screening tool to detect and evaluate steroid hormone activities in various test samples. Our assay system will strongly support the detection of agonists, antagonists, and inverse agonists of steroid hormone receptors in the field of novel drug discovery and assessments of environmental pollutants.
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Affiliation(s)
- Sayoko Ito-Harashima
- Department of Biological Sciences, Graduate School of Science, Osaka Prefecture University, 1-2 Gakuen-cho, Naka-ku, Sakai, Osaka, 599-8570 Japan
| | - Mami Matano
- Department of Biological Sciences, Graduate School of Science, Osaka Prefecture University, 1-2 Gakuen-cho, Naka-ku, Sakai, Osaka, 599-8570 Japan
| | - Kana Onishi
- Department of Biological Sciences, Graduate School of Science, Osaka Prefecture University, 1-2 Gakuen-cho, Naka-ku, Sakai, Osaka, 599-8570 Japan
| | - Tomofumi Nomura
- Department of Biological Sciences, Graduate School of Science, Osaka Prefecture University, 1-2 Gakuen-cho, Naka-ku, Sakai, Osaka, 599-8570 Japan
| | - Saki Nakajima
- Department of Biological Sciences, Graduate School of Science, Osaka Prefecture University, 1-2 Gakuen-cho, Naka-ku, Sakai, Osaka, 599-8570 Japan
| | - Shingo Ebata
- Department of Biological Sciences, Graduate School of Science, Osaka Prefecture University, 1-2 Gakuen-cho, Naka-ku, Sakai, Osaka, 599-8570 Japan
| | - Kazuhiro Shiizaki
- Department of Biological Sciences, Graduate School of Science, Osaka Prefecture University, 1-2 Gakuen-cho, Naka-ku, Sakai, Osaka, 599-8570 Japan.,Present address: Department of Applied Biosciences, Graduate School of Life Sciences, Toyo University, 1-1-1 Izumino, Itakura-machi, Ora-gun, Gunma 374-0193 Japan
| | - Masanobu Kawanishi
- Department of Biological Sciences, Graduate School of Science, Osaka Prefecture University, 1-2 Gakuen-cho, Naka-ku, Sakai, Osaka, 599-8570 Japan
| | - Takashi Yagi
- Department of Biological Sciences, Graduate School of Science, Osaka Prefecture University, 1-2 Gakuen-cho, Naka-ku, Sakai, Osaka, 599-8570 Japan
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72
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Wang Q, Shen JY, Zhang R, Hong JW, Li Z, Ding Z, Wang HX, Zhang JP, Zhang MR, Xu LC. Effects and mechanisms of pyrethroids on male reproductive system. Toxicology 2020; 438:152460. [PMID: 32278050 DOI: 10.1016/j.tox.2020.152460] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 03/26/2020] [Accepted: 03/30/2020] [Indexed: 12/21/2022]
Abstract
Synthetic pyrethroids are used as insecticides in agriculture and a variety of household applications worldwide. Pyrethroids are widely distributed in all environmental compartments and the general populations are exposed to pyrethroids through various routes. Pyrethroids have been identified as endocrine-disrupting chemicals (EDCs) which are responsible for the male reproductive impairments. The data confirm pyrethroids cause male reproductive damages. The insecticides exert the toxic effects on male reproductive system through various complex mechanisms including antagonizing androgen receptor (AR), inhibiting steroid synthesis, affecting the hypothalamic-pituitary-gonadal (HPG) axis, acting as estrogen receptor (ER) modulators and inducing oxidative stress. The mechanisms of male reproductive toxicity of pyrethroids involve multiple targets and pathways. The review will provide further insight into pyrethroid-induced male reproductive toxicity and mechanisms, which is crucial to preserve male reproductive health.
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Affiliation(s)
- Qi Wang
- School of Public Health, Xuzhou Medical University, 209 Tong-Shan Road, Xuzhou, 221004, Jiangsu, China
| | - Jun-Yu Shen
- School of Public Health, Xuzhou Medical University, 209 Tong-Shan Road, Xuzhou, 221004, Jiangsu, China
| | - Rui Zhang
- School of Public Health, Xuzhou Medical University, 209 Tong-Shan Road, Xuzhou, 221004, Jiangsu, China
| | - Jia-Wei Hong
- School of Public Health, Xuzhou Medical University, 209 Tong-Shan Road, Xuzhou, 221004, Jiangsu, China
| | - Zheng Li
- School of Public Health, Xuzhou Medical University, 209 Tong-Shan Road, Xuzhou, 221004, Jiangsu, China
| | - Zhen Ding
- School of Public Health, Xuzhou Medical University, 209 Tong-Shan Road, Xuzhou, 221004, Jiangsu, China
| | - Heng-Xue Wang
- School of Public Health, Xuzhou Medical University, 209 Tong-Shan Road, Xuzhou, 221004, Jiangsu, China
| | - Jin-Peng Zhang
- School of Public Health, Xuzhou Medical University, 209 Tong-Shan Road, Xuzhou, 221004, Jiangsu, China
| | - Mei-Rong Zhang
- School of Public Health, Xuzhou Medical University, 209 Tong-Shan Road, Xuzhou, 221004, Jiangsu, China
| | - Li-Chun Xu
- School of Public Health, Xuzhou Medical University, 209 Tong-Shan Road, Xuzhou, 221004, Jiangsu, China.
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73
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Low KL, Tomm RJ, Ma C, Tobiansky DJ, Floresco SB, Soma KK. Effects of aging on testosterone and androgen receptors in the mesocorticolimbic system of male rats. Horm Behav 2020; 120:104689. [PMID: 31954104 DOI: 10.1016/j.yhbeh.2020.104689] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Revised: 11/23/2019] [Accepted: 01/10/2020] [Indexed: 12/18/2022]
Abstract
As males age, systemic testosterone (T) levels decline. T regulates executive function, a collection of cognitive processes that are mediated by the mesocorticolimbic system. Here, we examined young adult (5 months) and aged (22 months) male Fischer 344 × Brown Norway rats, and measured systemic T levels in serum and local T levels in microdissected nodes of the mesocorticolimbic system (ventral tegmental area (VTA), nucleus accumbens (NAc), medial prefrontal cortex (mPFC), and orbitofrontal cortex (OFC)). We also measured androgen receptor (AR) immunoreactivity (-ir) in the mesocorticolimbic system. As expected, systemic T levels decreased with age. Local T levels in mesocorticolimbic regions - except the VTA - also decreased with age. Mesocorticolimbic T levels were higher than serum T levels at both ages. AR-ir was present in the VTA, NAc, mPFC, and OFC and decreased with age in the mPFC. Taken together with previous results, the data suggest that changes in androgen signaling may contribute to changes in executive function during aging.
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Affiliation(s)
- Katelyn L Low
- Department of Psychology and Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, BC, Canada; Department of Zoology, University of British Columbia, Vancouver, BC, Canada
| | - Ryan J Tomm
- Department of Psychology and Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, BC, Canada
| | - Chunqi Ma
- Department of Psychology and Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, BC, Canada
| | - Daniel J Tobiansky
- Department of Psychology and Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, BC, Canada
| | - Stan B Floresco
- Department of Psychology and Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, BC, Canada
| | - Kiran K Soma
- Department of Psychology and Djavad Mowafaghian Centre for Brain Health, University of British Columbia, Vancouver, BC, Canada; Department of Zoology, University of British Columbia, Vancouver, BC, Canada.
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74
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Bai X, Wang C, Zhang X, Feng Y, Zhang X. The role of testosterone in mu-opioid receptor expression in the trigeminal ganglia of opioid-tolerant rats. Neurosci Lett 2020; 723:134868. [PMID: 32109552 DOI: 10.1016/j.neulet.2020.134868] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 02/18/2020] [Accepted: 02/24/2020] [Indexed: 12/13/2022]
Abstract
Although tolerance serves as a major limitation in the long-term clinical use of opioids in patients with chronic severe pain, mechanisms of opioid tolerance are poorly understood. In this study, a morphine tolerance model was established by subcutaneously injecting male rats with morphine (10 mg/kg) twice a day for 10 consecutive days. In addition, a subset of morphine-tolerant rats underwent testosterone replacement therapy. The levels of mu-opioid receptor (MOR) mRNA and protein in the trigeminal ganglia (TGs) of morphine-tolerant versus control rats and of morphine-tolerant rats with vs. without testosterone replacement therapy were measured. We found that testosterone levels were significantly lower in morphine-tolerant rats than in the controls (1.248 ± 0.231 ng/ml vs. 2.223 ± 0.153 ng/ ml, respectively; p = 0.008). Furthermore, chronic morphine exposure led to a downregulation in the levels of MOR mRNA to 79.3%, and of MOR protein to 68.9%. Testosterone replacement therapy restored MOR mRNA and protein levels specifically in rats who had developed a tolerance to morphine, thereby suggesting a potential role of testosterone in the opioid-receptor response to chronic morphine exposure. In summary, our study provides evidence for the involvement of testosterone in the proper regulation of the peripheral MOR system in rats following prolonged morphine exposure. We also suggest that analgesic therapeutic measures should take into account the testosterone levels of patients who have built up a tolerance to morphine.
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Affiliation(s)
- Xiaofeng Bai
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, China Medical University, 117 North Nanjing Street, Shenyang, 110002, PR China
| | - Chun Wang
- Department of Anesthesiology, Hospital of Stomatology, China Medical University, 117 North Nanjing Street, Shenyang, 110002, PR China
| | - Xuedi Zhang
- Department of Anesthesiology, Hospital of Stomatology, China Medical University, 117 North Nanjing Street, Shenyang, 110002, PR China
| | - Yingbo Feng
- Department of Anesthesiology, Hospital of Stomatology, China Medical University, 117 North Nanjing Street, Shenyang, 110002, PR China
| | - Xia Zhang
- Department of Anesthesiology, Hospital of Stomatology, China Medical University, 117 North Nanjing Street, Shenyang, 110002, PR China.
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Cruz-Topete D, Dominic P, Stokes KY. Uncovering sex-specific mechanisms of action of testosterone and redox balance. Redox Biol 2020; 31:101490. [PMID: 32169396 PMCID: PMC7212492 DOI: 10.1016/j.redox.2020.101490] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 02/17/2020] [Accepted: 03/01/2020] [Indexed: 12/11/2022] Open
Abstract
The molecular and pharmacological manipulation of the endogenous redox system is a promising therapy to limit myocardial damage after a heart attack; however, antioxidant therapies have failed to fully establish their cardioprotective effects, suggesting that additional factors, including antioxidant system interactions with other molecular pathways, may alter the pharmacological effects of antioxidants. Since gender differences in cardiovascular disease (CVD) are prevalent, and sex is an essential determinant of the response to oxidative stress, it is of particular interest to understand the effects of sex hormone signaling on the activity and expression of cellular antioxidants and the pharmacological actions of antioxidant therapies. In the present review, we briefly summarize the current understanding of testosterone effects on the modulation of the endogenous antioxidant systems in the CV system, cardiomyocytes, and the heart. We also review the latest research on redox balance and sexual dimorphism, with particular emphasis on the role of the natural antioxidant system glutathione (GSH) in the context of myocardial infarction, and the pro- and antioxidant effects of testosterone signaling via the androgen receptor (AR) on the heart. Finally, we discuss future perspectives regarding the potential of using combing antioxidant and testosterone replacement therapies to protect the aging myocardium.
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Affiliation(s)
- Diana Cruz-Topete
- Department of Molecular and Cellular Physiology, Shreveport, LA, USA; Center for Cardiovascular Diseases and Sciences, Shreveport, LA, USA.
| | - Paari Dominic
- Center for Cardiovascular Diseases and Sciences, Shreveport, LA, USA; Department of Cardiology, LSU Health Sciences Center, Shreveport, LA, USA
| | - Karen Y Stokes
- Department of Molecular and Cellular Physiology, Shreveport, LA, USA; Center for Cardiovascular Diseases and Sciences, Shreveport, LA, USA
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76
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Sato Y, Kuriwaki R, Hagino S, Shimazaki M, Sambuu R, Hirata M, Tanihara F, Takagi M, Taniguchi M, Otoi T. Abnormal functions of Leydig cells in crossbred cattle-yak showing infertility. Reprod Domest Anim 2020; 55:209-216. [PMID: 31858644 DOI: 10.1111/rda.13609] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Accepted: 12/16/2019] [Indexed: 12/20/2022]
Abstract
In Mongolia, yak (Bos grunniens) are able to live in alpine areas and their products greatly influence the lives of the local people. Increased vigour in hybridized yak and cattle can offer benefits for livestock farmers. However, male hybrids show reproductive defects resulting from spermatogenesis arrest, affecting the conservation and maintenance of dominant traits in the next generation. The underlying mechanisms involved in hybrid cattle-yak infertility have recently been investigated; however, the genetic cause is still unclear. Androgens and androgen receptor (AR) signalling are required for spermatogenesis. We, therefore, evaluated the expression of AR, 3β-hydroxysteroid dehydrogenase (3βHSD) and 5α-reductase 2 (SRD5A2) in Leydig cells to investigate their function in cattle-yak spermatogenesis. Testicular tissues from yaks (1-3 years old) and hybrids (F1-F3, 2 years old) were collected and subjected to immunohistochemistry and image analyses to investigate the expression of each parameter in the Leydig cells. After maturation at 2 years, the expression levels of AR increased and the levels of 3βHSD decreased, but the SRD5A2 levels remained constant in yak. However, the cattle-yak hybrid F2 showed immature testicular development and significantly different expression levels of AR and 3βHSD compared with mature yak. These results suggest that the decreased expression of AR and increased expression of 3βHSD in the Leydig cells of cattle-yak hybrid testes may represent one of the causes of infertility. Our study might help in solving the problem of infertility in crossbreeding.
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Affiliation(s)
- Yoko Sato
- Department of Medical Engineering, Faculty of Allied Sciences, University of East Asia, Yamaguchi, Japan
| | - Ryota Kuriwaki
- Department of Animal Reproduction, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Shiki Hagino
- Department of Animal Reproduction, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Megumi Shimazaki
- Department of Animal Reproduction, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Rentsenkhand Sambuu
- Institute for Extension of Agricultural Advanced Technology, Ulaanbaatar, Mongolia
| | - Maki Hirata
- Faculty of Bioscience and Bioindustry, Tokushima University, Tokushima, Japan
| | - Fuminori Tanihara
- Faculty of Bioscience and Bioindustry, Tokushima University, Tokushima, Japan
| | - Mitsuhiro Takagi
- Department of Animal Reproduction, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Masayasu Taniguchi
- Department of Animal Reproduction, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | - Takeshige Otoi
- Faculty of Bioscience and Bioindustry, Tokushima University, Tokushima, Japan
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Pronsato L, Milanesi L, Vasconsuelo A. Testosterone induces up-regulation of mitochondrial gene expression in murine C2C12 skeletal muscle cells accompanied by an increase of nuclear respiratory factor-1 and its downstream effectors. Mol Cell Endocrinol 2020; 500:110631. [PMID: 31676390 DOI: 10.1016/j.mce.2019.110631] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 10/25/2019] [Accepted: 10/25/2019] [Indexed: 01/03/2023]
Abstract
The reduction in muscle mass and strength with age, sarcopenia, is a prevalent condition among the elderly, linked to skeletal muscle dysfunction and cell apoptosis. We demonstrated that testosterone protects against H2O2-induced apoptosis in C2C12 muscle cells. Here, we analyzed the effect of testosterone on mitochondrial gene expression in C2C12 skeletal muscle cells. We found that testosterone increases mRNA expression of genes encoded by mitochondrial DNA, such as NADPH dehydrogenase subunit 1 (ND1), subunit 4 (ND4), cytochrome b (CytB), cytochrome c oxidase subunit 1 (Cox1) and subunit 2 (Cox2) in C2C12. Additionally, the hormone induced the expression of the nuclear respiratory factors 1 and 2 (Nrf-1 and Nrf-2), the mitochondrial transcription factors A (Tfam) and B2 (TFB2M), and the optic atrophy 1 (OPA1). The simultaneous treatment with testosterone and the androgen receptor antagonist, Flutamide, reduced these effects. H2O2-oxidative stress induced treatment, significantly decreased mitochondrial gene expression. Computational analysis revealed that mitochondrial DNA contains specific sequences, which the androgen receptor could recognize and bind, probably taking place a direct regulation of mitochondrial transcription by the receptor. These findings indicate that androgen plays an important role in the regulation of mitochondrial transcription and biogenesis in skeletal muscle.
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Affiliation(s)
- Lucía Pronsato
- Instituto de Investigaciones Biológicas y Biomédicas del Sur (INBIOSUR-CONICET), 8000, Bahía Blanca, Argentina.
| | - Lorena Milanesi
- Instituto de Investigaciones Biológicas y Biomédicas del Sur (INBIOSUR-CONICET), 8000, Bahía Blanca, Argentina.
| | - Andrea Vasconsuelo
- Instituto de Investigaciones Biológicas y Biomédicas del Sur (INBIOSUR-CONICET), 8000, Bahía Blanca, Argentina
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Carbajal-García A, Reyes-García J, Montaño LM. Androgen Effects on the Adrenergic System of the Vascular, Airway, and Cardiac Myocytes and Their Relevance in Pathological Processes. Int J Endocrinol 2020; 2020:8849641. [PMID: 33273918 PMCID: PMC7676939 DOI: 10.1155/2020/8849641] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 09/17/2020] [Accepted: 10/20/2020] [Indexed: 02/06/2023] Open
Abstract
INTRODUCTION Androgen signaling comprises nongenomic and genomic pathways. Nongenomic actions are not related to the binding of the androgen receptor (AR) and occur rapidly. The genomic effects implicate the binding to a cytosolic AR, leading to protein synthesis. Both events are independent of each other. Genomic effects have been associated with different pathologies such as vascular ischemia, hypertension, asthma, and cardiovascular diseases. Catecholamines play a crucial role in regulating vascular smooth muscle (VSM), airway smooth muscle (ASM), and cardiac muscle (CM) function and tone. OBJECTIVE The aim of this review is an updated analysis of the role of androgens in the adrenergic system of vascular, airway, and cardiac myocytes. Body. Testosterone (T) favors vasoconstriction, and its concentration fluctuation during life stages can affect the vascular tone and might contribute to the development of hypertension. In the VSM, T increases α1-adrenergic receptors (α 1-ARs) and decreases adenylyl cyclase expression, favoring high blood pressure and hypertension. Androgens have also been associated with asthma. During puberty, girls are more susceptible to present asthma symptoms than boys because of the increment in the plasmatic concentrations of T in young men. In the ASM, β 2-ARs are responsible for the bronchodilator effect, and T augments the expression of β 2-ARs evoking an increase in the relaxing response to salbutamol. The levels of T are also associated with an increment in atherosclerosis and cardiovascular risk. In the CM, activation of α 1A-ARs and β 2-ARs increases the ionotropic activity, leading to the development of contraction, and T upregulates the expression of both receptors and improves the myocardial performance. CONCLUSIONS Androgens play an essential role in the adrenergic system of vascular, airway, and cardiac myocytes, favoring either a state of health or disease. While the use of androgens as a therapeutic tool for treating asthma symptoms or heart disease is proposed, the vascular system is warmly affected.
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Affiliation(s)
- Abril Carbajal-García
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, CDMX, Mexico
| | - Jorge Reyes-García
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, CDMX, Mexico
| | - Luis M. Montaño
- Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, CDMX, Mexico
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Ballar Kirmizibayrak P, Erbaykent-Tepedelen B, Gozen O, Erzurumlu Y. Divergent Modulation of Proteostasis in Prostate Cancer. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1233:117-151. [PMID: 32274755 DOI: 10.1007/978-3-030-38266-7_5] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Proteostasis regulates key cellular processes such as cell proliferation, differentiation, transcription, and apoptosis. The mechanisms by which proteostasis is regulated are crucial and the deterioration of cellular proteostasis has been significantly associated with tumorigenesis since it specifically targets key oncoproteins and tumor suppressors. Prostate cancer (PCa) is the second most common cause of cancer death in men worldwide. Androgens mediate one of the most central signaling pathways in all stages of PCa via the androgen receptor (AR). In addition to their regulation by hormones, PCa cells are also known to be highly secretory and are particularly prone to ER stress as proper ER function is essential. Alterations in various complex signaling pathways and cellular processes including cell cycle control, transcription, DNA repair, apoptosis, cell adhesion, epithelial-mesenchymal transition (EMT), and angiogenesis are critical factors influencing PCa development through key molecular changes mainly by posttranslational modifications in PCa-related proteins, including AR, NKX3.1, PTEN, p53, cyclin D1, and p27. Several ubiquitin ligases like MDM2, Siah2, RNF6, CHIP, and substrate-binding adaptor SPOP; deubiquitinases such as USP7, USP10, USP26, and USP12 are just some of the modifiers involved in the regulation of these key proteins via ubiquitin-proteasome system (UPS). Some ubiquitin-like modifiers, especially SUMOs, have been also closely associated with PCa. On the other hand, the proteotoxicity resulting from misfolded proteins and failure of ER adaptive capacity induce unfolded protein response (UPR) that is an indispensable signaling mechanism for PCa development. Lastly, ER-associated degradation (ERAD) also plays a crucial role in prostate tumorigenesis. In this section, the relationship between prostate cancer and proteostasis will be discussed in terms of UPS, UPR, SUMOylation, ERAD, and autophagy.
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Affiliation(s)
| | | | - Oguz Gozen
- Faculty of Medicine, Department of Physiology, Ege University, Izmir, Turkey
| | - Yalcin Erzurumlu
- Faculty of Pharmacy, Department of Biochemistry, Suleyman Demirel University, Isparta, Turkey
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Barrientos G, Llanos P, Basualto-Alarcón C, Estrada M. Androgen-Regulated Cardiac Metabolism in Aging Men. Front Endocrinol (Lausanne) 2020; 11:316. [PMID: 32499759 PMCID: PMC7243157 DOI: 10.3389/fendo.2020.00316] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Accepted: 04/24/2020] [Indexed: 12/21/2022] Open
Abstract
The prevalence of cardiovascular mortality is higher in men than in age-matched premenopausal women. Gender differences are linked to circulating sex-related steroid hormone levels and their cardio-specific actions, which are critical factors involved in the prevalence and features of age-associated cardiovascular disease. In women, estrogens have been described as cardioprotective agents, while in men, testosterone is the main sex steroid hormone. The effects of testosterone as a metabolic regulator and cardioprotective agent in aging men are poorly understood. With advancing age, testosterone levels gradually decrease in men, an effect associated with increasing fat mass, decrease in lean body mass, dyslipidemia, insulin resistance and adjustment in energy substrate metabolism. Aging is associated with a decline in metabolism, characterized by modifications in cardiac function, excitation-contraction coupling, and lower efficacy to generate energy. Testosterone deficiency -as found in elderly men- rapidly becomes an epidemic condition, associated with prominent cardiometabolic disorders. Therefore, it is highly probable that senior men showing low testosterone levels will display symptoms of androgen deficiency, presenting an unfavorable metabolic profile and increased cardiovascular risk. Moreover, recent reports establish that testosterone replacement improves cardiomyocyte bioenergetics, increases glucose metabolism and reduces insulin resistance in elderly men. Thus, testosterone-related metabolic signaling and gene expression may constitute relevant therapeutic target for preventing, or treating, age- and gender-related cardiometabolic diseases in men. Here, we will discuss the impact of current evidence showing how cardiac metabolism is regulated by androgen levels in aging men.
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Affiliation(s)
- Genaro Barrientos
- Programa de Fisiología y Biofísica, Facultad de Medicina, Instituto de Ciencias Biomédicas, Universidad de Chile, Santiago, Chile
- Centro de Estudios en Ejercicio, Metabolismo y Cáncer (CEMC), Universidad de Chile, Santiago, Chile
| | - Paola Llanos
- Centro de Estudios en Ejercicio, Metabolismo y Cáncer (CEMC), Universidad de Chile, Santiago, Chile
- Facultad de Odontología, Instituto de Investigación en Ciencias Odontológicas (ICOD), Universidad de Chile, Santiago, Chile
| | - Carla Basualto-Alarcón
- Departamento de Ciencias de la Salud, Universidad de Aysén, Coyhaique, Chile
- Departamento de Anatomía y Medicina Legal, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Manuel Estrada
- Programa de Fisiología y Biofísica, Facultad de Medicina, Instituto de Ciencias Biomédicas, Universidad de Chile, Santiago, Chile
- *Correspondence: Manuel Estrada
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81
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Wen S, Niu Y, Huang H. Posttranslational regulation of androgen dependent and independent androgen receptor activities in prostate cancer. Asian J Urol 2019; 7:203-218. [PMID: 33024699 PMCID: PMC7525085 DOI: 10.1016/j.ajur.2019.11.001] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 08/21/2019] [Accepted: 10/11/2019] [Indexed: 12/12/2022] Open
Abstract
Prostate cancer (PCa) is the most commonly diagnosed cancer among men in western countries. Androgen receptor (AR) signaling plays key roles in the development of PCa. Androgen deprivation therapy (ADT) remains the standard therapy for advanced PCa. In addition to its ligand androgen, accumulating evidence indicates that posttranscriptional modification is another important mechanism to regulate AR activities during the progression of PCa, especially in castration resistant prostate cancer (CRPC). To date, a number of posttranscriptional modifications of AR have been identified, including phosphorylation (e.g. by CDK1), acetylation (e.g. by p300 and recognized by BRD4), methylation (e.g. by EZH2), ubiquitination (e.g. by SPOP), and SUMOylation (e.g. by PIAS1). These modifications are essential for the maintenance of protein stability, nuclear localization and transcriptional activity of AR. This review summarizes posttranslational modifications that influence androgen-dependent and -independent activities of AR, PCa progression and therapy resistance. We further emphasize that in addition to androgen, posttranslational modification is another important way to regulate AR activity, suggesting that targeting AR posttranslational modifications, such as proteolysis targeting chimeras (PROTACs) of AR, represents a potential and promising alternate for effective treatment of CRPC. Potential areas to be investigated in the future in the field of AR posttranslational modifications are also discussed.
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Affiliation(s)
- Simeng Wen
- Department of Urology, The Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin Medical University, Tianjin, China.,Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine and Science, Rochester, USA
| | - Yuanjie Niu
- Department of Urology, The Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin Medical University, Tianjin, China
| | - Haojie Huang
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine and Science, Rochester, USA.,Department of Urology, Mayo Clinic College of Medicine and Science, Rochester, USA.,Mayo Clinic Cancer Center, Mayo Clinic College of Medicine and Science, Rochester, USA
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82
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Androgen-Regulated microRNAs (AndroMiRs) as Novel Players in Adipogenesis. Int J Mol Sci 2019; 20:ijms20225767. [PMID: 31744106 PMCID: PMC6888160 DOI: 10.3390/ijms20225767] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 11/11/2019] [Accepted: 11/12/2019] [Indexed: 12/14/2022] Open
Abstract
The development, homeostasis, or increase of the adipose tissue is driven by the induction of the adipogenic differentiation (adipogenesis) of undifferentiated mesenchymal stem cells (MSCs). Adipogenesis can be inhibited by androgen stimulation of these MSCs resulting in the transcription initiation or repression of androgen receptor (AR) regulated genes. AR not only regulates the transcription of protein-coding genes but also the transcription of several non-coding microRNAs involved in the posttranscriptional gene regulation (herein designated as AndroMiRs). As microRNAs are largely involved in differentiation processes such as adipogenesis, the involvement of AndroMiRs in the androgen-mediated inhibition of adipogenesis is likely, however, not yet intensively studied. In this review, existing knowledge about adipogenesis-related microRNAs and AndroMiRs is summarized, and putative cross-links are drawn, which are still prone to experimental validation.
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83
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Effect of Paecilomyces tenuipes Extract on Testosterone-Induced Benign Prostatic Hyperplasia in Sprague-Dawley Rats. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16193764. [PMID: 31591335 PMCID: PMC6801653 DOI: 10.3390/ijerph16193764] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 10/03/2019] [Accepted: 10/03/2019] [Indexed: 02/07/2023]
Abstract
Benign prostatic hyperplasia (BPH) is one of the major public health concerns, which has a high prevalence rate and causes significant decline in men’s quality of life. BPH is highly related to sexual hormone metabolism and aging. In particular, dihydrotestosterone (DHT), to which testosterone is modified by 5α-reductase (5AR), has a significant effect on BPH development. DHT binds to an androgen receptor (AR) and steroid receptor coactivator 1 (SRC-1); then, it induces the proliferation of a prostate cell and expression of prostate specific antigen (PSA). Paecilomyces tenuipes (P. tenuipes) is a mushroom that has been popularized by the artificial cultivation of fruiting bodies based on silkworms by researchers from the Republic of Korea. In a previous study, we identified the effect of PE on PSA mRNA expression in LNCaP cells. This suggests that PE may have an inhibitory effect on androgen signaling. Therefore, we confirmed the expression of androgen signaling-related factors, such as AR, SRC-1, and PSA in LNCaP. Furthermore, we confirmed the androgen signaling inhibitory effect of PE using the testosterone propionate (TP)-induced BPH rat model. A BPH rat model was established with a four-week treatment of daily subcutaneous injections of testosterone propionate (TP, 3 mg/kg) dissolved in corn oil after castration. The rats in the treatment group were orally gavaged P. tenuipes extract (PE), finasteride (Fi), or saw palmetto extract (Saw) with TP injection. DHT induced an increase in the expression levels of AR, SRC-1, and PSA proteins in LNCaP cells. On the contrary, the PE treatment reduced the expression levels. In vivo, the BPH group showed an increase in prostate size compared with the control group. The PE gavaged group showed a decrease in prostate size compared with the BPH group. In addition, the protein expressions of AR, 5AR2, and PSA were significantly lower in the PE gavaged group than BPH group in prostate tissue. These results suggest the beneficial effects of PE on BPH via the modulation of AR signaling pathway.
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84
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Feng Q, He B. Androgen Receptor Signaling in the Development of Castration-Resistant Prostate Cancer. Front Oncol 2019; 9:858. [PMID: 31552182 PMCID: PMC6738163 DOI: 10.3389/fonc.2019.00858] [Citation(s) in RCA: 119] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Accepted: 08/20/2019] [Indexed: 12/19/2022] Open
Abstract
Most prostate cancers are androgen-sensitive malignancies whose growths depend on the transcriptional activity of the androgen receptor (AR). In the 1940s, Charles Huggins demonstrated that the surgical removal of testes in men can result in a dramatic improvement in symptoms and can induce prostate cancer regression. Since then, androgen deprivation therapies have been the standard first-line treatment for advanced prostate cancer, including: surgical castration, medical castration, antiandrogens, and androgen biosynthesis inhibitors. These therapies relieve symptoms, reduce tumor burden, and prolong patient survival, while having relatively modest side effects. Unfortunately, hormone deprivation therapy rarely cures the cancer itself. Prostate cancer almost always recurs, resulting in deadly castration-resistant prostate cancer. The underlying escape mechanisms include androgen receptor gene/enhancer amplification, androgen receptor mutations, androgen receptor variants, coactivator overexpression, intratumoral de novo androgen synthesis, etc. Whereas, the majority of the castration-resistant prostate cancers continuously rely on the androgen axis, a subset of recurrent cancers have completely lost androgen receptor expression, undergone divergent clonal evolution or de-differentiation, and become truly androgen receptor-independent small-cell prostate cancers. There is an urgent need for the development of novel targeted and immune therapies for this subtype of prostate cancer, when more deadly small-cell prostate cancers are induced by thorough androgen deprivation and androgen receptor ablation.
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Affiliation(s)
- Qin Feng
- Department of Biology and Biochemistry, Center for Nuclear Receptors and Cell Signaling, University of Houston, Houston, TX, United States
| | - Bin He
- Departments of Surgery and Urology, Immunobiology & Transplant Science Center, Houston Methodist Cancer Center, Houston Methodist Research Institute, Houston Methodist Hospital, Houston, TX, United States
- Department of Medicine-Cancer Biology, Weill Cornell Medicine, Cornell University, New York, NY, United States
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85
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Review: Understanding the role of androgens and placental AR variants: Insight into steroid-dependent fetal-placental growth and development. Placenta 2019; 84:63-68. [DOI: 10.1016/j.placenta.2019.03.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 03/07/2019] [Accepted: 03/14/2019] [Indexed: 12/30/2022]
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86
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Detection of ADP-Ribosylation of the Androgen Receptor Using the Recombinant Macrodomain AF1521 from Archaeoglobus fulgidus. Methods Mol Biol 2019; 1966:107-124. [PMID: 31041742 DOI: 10.1007/978-1-4939-9195-2_9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
ADP-ribosylation is a posttranslational modification generated by members of the superfamily of ADP-ribosyltransferases, known as the Parp enzymes. Depending on the superfamily member, Parp enzymes can mono- or poly-ADP-ribosylate a protein substrate. Parp superfamily members confer regulation to a variety of biological processes that include cell signaling, DNA repair, transcription, and stress responses. Here, we describe biochemical methods for detection of ADP-ribose conjugated to the androgen receptor (AR) using the archaeal macrodomain, AF1521, from Archaeoglobus fulgidus. The utility of AF1521 is based on its highly selective recognition of ADP-ribose conjugated to protein. AF1521 immobilized on beads can be used to enrich for ADP-ribosylated proteins, which in our application results in recovery of ADP-ribosylated AR from prostate cancer cell extracts. We engineered tandem AF1521 macrodomains and found this improves the recovery of ADP-ribosylated AR under native conditions, and it enabled development of an assay for detection of ADP-ribosylation on blots. Thus, AF1521 can be used to query ADP-ribosylation of protein under both native and denaturing conditions. Our assays should prove useful for understanding how ADP-ribosylation regulates AR function.
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87
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Edelsztein NY, Rey RA. Importance of the Androgen Receptor Signaling in Gene Transactivation and Transrepression for Pubertal Maturation of the Testis. Cells 2019; 8:E861. [PMID: 31404977 PMCID: PMC6721648 DOI: 10.3390/cells8080861] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 07/30/2019] [Accepted: 08/01/2019] [Indexed: 12/27/2022] Open
Abstract
Androgens are key for pubertal development of the mammalian testis, a phenomenon that is tightly linked to Sertoli cell maturation. In this review, we discuss how androgen signaling affects Sertoli cell function and morphology by concomitantly inhibiting some processes and promoting others that contribute jointly to the completion of spermatogenesis. We focus on the molecular mechanisms that underlie anti-Müllerian hormone (AMH) inhibition by androgens at puberty, as well as on the role androgens have on Sertoli cell tight junction formation and maintenance and, consequently, on its effect on proper germ cell differentiation and meiotic onset during spermatogenesis.
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Affiliation(s)
- Nadia Y Edelsztein
- Centro de Investigaciones Endocrinológicas "Dr. César Bergadá" (CEDIE) - CONICET - FEI - División de Endocrinología, Hospital de Niños Ricardo Gutiérrez, Buenos Aires C1425EFD, Argentina.
| | - Rodolfo A Rey
- Centro de Investigaciones Endocrinológicas "Dr. César Bergadá" (CEDIE) - CONICET - FEI - División de Endocrinología, Hospital de Niños Ricardo Gutiérrez, Buenos Aires C1425EFD, Argentina.
- Departamento de Biología Celular, Histología, Embriología y Genética, Facultad de Medicina, Universidad de Buenos Aires, Buenos Aires C1121ABG, Argentina.
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88
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Wang C, Zhang W, Wang Y, Wan H, Chen Y, Xia F, Zhang K, Wang N, Lu Y. Novel associations between sex hormones and diabetic vascular complications in men and postmenopausal women: a cross-sectional study. Cardiovasc Diabetol 2019; 18:97. [PMID: 31366359 PMCID: PMC6668151 DOI: 10.1186/s12933-019-0901-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Accepted: 07/24/2019] [Indexed: 02/06/2023] Open
Abstract
Background Associations between sex hormones and vascular remodeling have been extensively studied, but the results vary widely among different races and sex. We aimed to investigate whether total testosterone (TT), estrogen (E2), and dehydroepiandrosterone (DHEA) associate with macrovascular complications and diabetic kidney disease (DKD) among community-dwelling patients with diabetes. Methods A total of 4720 participants with type 2 diabetes were recruited from Shanghai, China. Common carotid artery (CCA) plaques and diameter were assessed by ultrasound. Cardiovascular disease (CVD) was defined by prior diagnosis of coronary heart disease, myocardial infarction or stroke. DKD was defined according to the ADA Guidelines. Results (1) In men, TT was negatively associated with CCA diameter (regression coefficient (β) − 0.044, 95% CI − 0.087, 0). E2 levels were positively associated with CVD and CCA plaque prevalence (OR 1.151, 95% CI 1.038, 1.277 and OR 1.13, 95% CI 1.017, 1.255, respectively). DHEA was negatively associated with CVD (OR 0.809, 95% CI 0.734, 0.893). In postmenopausal women, TT levels were negatively associated with CCA diameter (β − 0.046, 95% CI − 0.083, − 0.010) and positively associated with CVD (OR 1.154, 95% CI 1.038, 1.284). (2) In both men and postmenopausal women, TT levels were negatively associated with the albumin/creatinine ratio and DKD (β − 0.098, 95% CI − 0.154, − 0.043 and OR 0.887, 95% CI 0.790, 0.997 vs. β − 0.084, 95% CI − 0.137, − 0.031 and OR 0.822, 95% CI 0.731, 0.924, respectively) and DHEA levels were positively associated with DKD (OR 1.167, 95% CI 1.038, 1.313 vs. OR 1.251, 95% CI 1.104, 1.418, respectively). Conclusions Our study indicates that macrovascular complications were associated with low TT, DHEA and high E2 in men and with high TT in postmenopausal women. DKD was associated with low TT and high DHEA levels in both genders. Sex hormone replacement therapy requires careful and comprehensive consideration. Trial registration ChiCTR1800017573, http://www.chictr.org.cn. Registered 04 August 2018 Electronic supplementary material The online version of this article (10.1186/s12933-019-0901-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Chiyu Wang
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Wen Zhang
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Yuying Wang
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Heng Wan
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Yi Chen
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Fangzhen Xia
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Kun Zhang
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
| | - Ningjian Wang
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China.
| | - Yingli Lu
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China.
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89
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Zhang K, Yang X, Zhang M, Wang C, Fang P, Xue M, Zhao J, Gao X, Pan R, Gong P. Revisiting the relationships of 2D:4D with androgen receptor (AR) gene and current testosterone levels: Replication study and meta-analyses. J Neurosci Res 2019; 98:353-370. [PMID: 31359506 DOI: 10.1002/jnr.24502] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 07/13/2019] [Accepted: 07/15/2019] [Indexed: 01/07/2023]
Abstract
The relationships of digit ratio (2D:4D) with the length of AR (CAG)n, and testosterone levels from saliva and blood have been extensively debated over the years. This research including three studies further clarifies such controversies. To do so, we re-examined the relationships between the length of AR (CAG)n, 2D:4D, and current testosterone levels, through replication study and meta-analysis for each study. The results indicate: (a) the length of AR (CAG)n is not significantly associated with 2D:4D; (b) current testosterone levels are not significantly associated with the ratio; and (c) the length is not significantly associated with testosterone levels. Thus, AR (CAG)n and current testosterone levels are not significantly related to 2D:4D at individual level.
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Affiliation(s)
- Kejin Zhang
- Shaanxi Key Laboratory for Animal Conservation, Northwest University, Xi'an, China.,College of Life Science, Northwest University, Xi'an, China
| | - Xing Yang
- College of Life Science, Northwest University, Xi'an, China
| | - Mengfei Zhang
- College of Life Science, Northwest University, Xi'an, China
| | - Chunlan Wang
- College of Life Science, Northwest University, Xi'an, China
| | - Pengpeng Fang
- College of Life Science, Northwest University, Xi'an, China
| | - Mengying Xue
- College of Life Science, Northwest University, Xi'an, China
| | - Jing Zhao
- College of Life Science, Northwest University, Xi'an, China
| | - Xiaocai Gao
- Institute of Population and Health, Northwest University, Xi'an, China
| | - Ruliang Pan
- Shaanxi Key Laboratory for Animal Conservation, Northwest University, Xi'an, China.,School of Human Sciences, Centre for Evolutionary Biology, The University of Western Australia, Perth, WA, Australia.,School of Biological Sciences, The University of Western Australia, Perth, WA, Australia
| | - Pingyuan Gong
- Shaanxi Key Laboratory for Animal Conservation, Northwest University, Xi'an, China.,College of Life Science, Northwest University, Xi'an, China.,Institute of Population and Health, Northwest University, Xi'an, China.,Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Northwest University, Xi'an, China
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90
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Mishra JS, More AS, Kumar S. Elevated androgen levels induce hyperinsulinemia through increase in Ins1 transcription in pancreatic beta cells in female rats. Biol Reprod 2019; 98:520-531. [PMID: 29365042 DOI: 10.1093/biolre/ioy017] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Accepted: 01/19/2018] [Indexed: 12/15/2022] Open
Abstract
Hyperandrogenism is associated with hyperinsulinemia and insulin resistance in adult females. We tested whether androgens dysregulate pancreatic beta cell function to induce hyperinsulinemia through transcriptional regulation of insulin gene (Ins) in the islets. Adult female Wistar rats implanted with dihydrotestosterone (DHT; 7.5-mg, 90-d release) or placebo pellets were examined after 10 weeks. DHT exposure increased plasma DHT levels by 2-fold similar to that in polycystic ovary syndrome in women. DHT exposure induced hyperinsulinemia with increased HOMA-IR index in fasting state and glucose intolerance and exaggerated insulin responses following glucose tolerance test. DHT females had no change in islet number, size and beta cell proliferation/apoptosis but exhibited significant mitochondrial dysfunction (higher ADP/ATP ratio, decreased mtDNA copy number, increased reactive oxygen production and downregulation of mitochondrial biogenesis) and enhanced glucose-stimulated insulin secretion. Ins expression was increased in DHT islets. In vitro incubation of control islets with DHT dose dependently stimulated Ins transcription. Analysis of Ins1 gene revealed a putative androgen responsive element in the promoter. Chromatin-immunoprecipitation assays showed that androgen receptors bind to this element in response to DHT stimulation. Furthermore, reporter assays showed that the promoter element is highly responsive to androgens. Insulin-stimulated glucose uptake in skeletal muscle was decreased with associated decrease in IRβ expression in DHT females. Our studies identified a novel androgen-mediated mechanism for the control of Ins expression via transcriptional regulation providing a molecular mechanism linking elevated androgens and hyperinsulemia. Decreased IRβ expression in the skeletal muscles may contribute, in part, to glucose intolerance in this model.
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Affiliation(s)
- Jay S Mishra
- Department of Comparative Biosciences and Obstetrics and Gynecology, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Amar S More
- Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, Texas, USA
| | - Sathish Kumar
- Department of Comparative Biosciences and Obstetrics and Gynecology, University of Wisconsin-Madison, Madison, Wisconsin, USA
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91
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Gannon AL, O'Hara L, Mason JI, Jørgensen A, Frederiksen H, Milne L, Smith S, Mitchell RT, Smith LB. Androgen receptor signalling in the male adrenal facilitates X-zone regression, cell turnover and protects against adrenal degeneration during ageing. Sci Rep 2019; 9:10457. [PMID: 31320667 PMCID: PMC6639311 DOI: 10.1038/s41598-019-46049-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 06/20/2019] [Indexed: 11/09/2022] Open
Abstract
Androgens are known to be an essential regulator of male health. Androgen receptor (AR) is widely expressed throughout the adrenal cortex, yet the wider role for androgen signalling in the adrenal remains underexplored. To investigate AR-dependent and AR-independent androgen signalling in the adrenal, we used a novel mouse model with a specific ablation of androgen receptor in the adrenal cortex with or without reduction of circulating androgen levels by castration. Our results describe AR expression in the human and mouse adrenal and highlight that the mouse is a viable model to investigate androgen signalling in the adrenal cortex. We show androgen signalling via AR is required for X-zone regression during puberty. Furthermore, cortex measurements define differences in X-zone morphology depending on whether circulating androgens or AR have been removed. We show androgens promote both cortical cell differentiation and apoptosis but are dispensable for the formation of the definitive cortex. Additionally, investigation of aged mice with AR ablation reveals severe cortex disruption, spindle cell hyperplasia and X-zone expansion. The data described herein demonstrates AR-signalling is required to facilitate X-zone regression, cell clearance and to protect against adrenal degeneration during ageing.
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Affiliation(s)
- Anne-Louise Gannon
- MRC Centre for Reproductive Health, University of Edinburgh, The Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh, EH16 4TJ, UK
- School of Environmental and Life Sciences, Faculty of Science, University of Newcastle, Callaghan, 2308, NSW, Australia
| | - Laura O'Hara
- MRC Centre for Reproductive Health, University of Edinburgh, The Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh, EH16 4TJ, UK
- Centre for Discovery Brain Sciences, Hugh Robson Building, George Square, Edinburgh, EH8 9XD, UK
| | - J Ian Mason
- MRC Centre for Reproductive Health, University of Edinburgh, The Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh, EH16 4TJ, UK
| | - Anne Jørgensen
- Department of Growth and Reproduction, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
- International Centre for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, Copenhagen, Denmark
| | - Hanne Frederiksen
- Department of Growth and Reproduction, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
- International Centre for Research and Research Training in Endocrine Disruption of Male Reproduction and Child Health (EDMaRC), Rigshospitalet, Copenhagen, Denmark
| | - Laura Milne
- MRC Centre for Reproductive Health, University of Edinburgh, The Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh, EH16 4TJ, UK
- Edinburgh Genome Foundry, Michael Swann Building, Max Bonn Crescent, Edinburgh, EH9 3BF, UK
| | - Sarah Smith
- MRC Centre for Reproductive Health, University of Edinburgh, The Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh, EH16 4TJ, UK
| | - Rod T Mitchell
- MRC Centre for Reproductive Health, University of Edinburgh, The Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh, EH16 4TJ, UK
| | - Lee B Smith
- MRC Centre for Reproductive Health, University of Edinburgh, The Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh, EH16 4TJ, UK.
- School of Environmental and Life Sciences, Faculty of Science, University of Newcastle, Callaghan, 2308, NSW, Australia.
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92
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Chen H, Liu T, Holt WV, Yang P, Zhang L, Zhang L, Han X, Bian X, Chen Q. Advances in understanding mechanisms of long-term sperm storage-the soft-shelled turtle model. Histol Histopathol 2019; 35:1-23. [PMID: 31290136 DOI: 10.14670/hh-18-148] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Long-term sperm storage is a special reproductive strategy, which can extend the time window between mating and fertilization in some animal species. Spermatozoa of the soft-shelled turtle, Pelodiscus sinensis, can be stored in the epididymis and oviduct for at least six months and one year, respectively. How spermatozoa can be stored in vivo for such a prolonged period is yet to be explained. We analyze the mechanisms that contribute to long-term sperm storage in P. sinensis, and compare them with other species from three different perspectives: the spermatozoon itself, the storage microenvironment and the interaction between the spermatozoon and microenvironment. Characteristics of soft-shelled turtle spermatozoa itself, such as the huge cytoplasmic droplet with its content of several large lipid droplets (LDs) and onion-like mitochondira, facilitate long-term sperm storage. The microenvironment of reproductive tract, involving in the secretions, structural barriers, exosomes, androgen receptors, Toll-like receptors and survival factor Bcl-2, are important for the maintenance of spermatozoa long-term storage. Sperm heads are always embedded among the oviductal cilia and even intercalate into the apical hollowness of the ciliated cells, indicating that the ciliated cells support the stored spermatozoa. RNA seq is firstly used to detect the molecular mechanism of sperm storage, which shows that autophagy, apoptosis and immune take part in the long-term sperm storage in this species.
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Affiliation(s)
- Hong Chen
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu Province, China
| | - Tengfei Liu
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu Province, China
| | - William V Holt
- Academic Unit of Reproductive and Developmental Medicine, University of Sheffield, United Kingdom
| | - Ping Yang
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu Province, China
| | - Linli Zhang
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu Province, China
| | - Li Zhang
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu Province, China
| | - Xiangkun Han
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu Province, China
| | - Xunguang Bian
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu Province, China
| | - Qiusheng Chen
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu Province, China.
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93
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Rui X, Gu TT, Pan HF, Shao SL, Shao HX. MicroRNA-381 suppresses proliferation and invasion of prostate cancer cells through downregulation of the androgen receptor. Oncol Lett 2019; 18:2066-2072. [PMID: 31423279 DOI: 10.3892/ol.2019.10471] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Accepted: 04/17/2019] [Indexed: 12/15/2022] Open
Abstract
Prostate cancer (PCa) is the most frequently diagnosed malignancy in men and its incidence has increased rapidly worldwide. Notably, the molecular mechanisms underlying prostate tumorigenesis have not been fully identified. The levels of microRNA (miR)-381 have been explored in numerous types of malignancy; however, the expression levels and biological function of miR-381 in PCa remain largely unknown. In the present study, reverse-transcription polymerase chain reaction was used to detect the expression levels of miR-381 in PCa cells and normal prostate epithelial cells. Subsequently, miR-381 antisense oligonucleotides and mimics were transfected into LNCaP PCa cells. Bioinformatics analysis was performed to identify the potential target genes of miR-381. Protein expression analysis, dual-luciferase reporter assay and a rescue assay were used to confirm the target of miR-381. The data suggested that the expression levels of miR-381 were significantly decreased in PCa cells compared with in normal prostatic epithelial cells. Furthermore, transfection of LNCaP cells with miR-381 mimics suppressed their proliferation, migration and invasion. In addition, bioinformatics analysis suggested that the androgen receptor (AR) was a target gene of miR-381. miR-381 suppressed the expression levels of AR by directly binding to its 3'-untranslated region. Furthermore, transfection with an AR plasmid partially attenuated miR-381-induced inhibition of cell proliferation, migration and invasion. The results of the present study suggested that miR-381 may act as a tumor suppressor in PCa by directly targeting the AR.
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Affiliation(s)
- Xin Rui
- Department of Urology, HwaMei Hospital, University of Chinese Academy of Sciences (Ningbo No. 2 Hospital), Ningbo, Zhejiang 315010, P.R. China
| | - Ting-Ting Gu
- Department of Urology, HwaMei Hospital, University of Chinese Academy of Sciences (Ningbo No. 2 Hospital), Ningbo, Zhejiang 315010, P.R. China
| | - Hua-Feng Pan
- Department of Urology, HwaMei Hospital, University of Chinese Academy of Sciences (Ningbo No. 2 Hospital), Ningbo, Zhejiang 315010, P.R. China
| | - Si-Liang Shao
- Department of Urology, HwaMei Hospital, University of Chinese Academy of Sciences (Ningbo No. 2 Hospital), Ningbo, Zhejiang 315010, P.R. China
| | - Hong-Xiang Shao
- Department of Urology, HwaMei Hospital, University of Chinese Academy of Sciences (Ningbo No. 2 Hospital), Ningbo, Zhejiang 315010, P.R. China
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94
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Song T, Li J. New Insights into the Binding Mechanism of Co-regulator BUD31 to AR AF2 Site: Structural Determination and Analysis of the Mutation Effect. Curr Comput Aided Drug Des 2019; 16:45-53. [PMID: 31057123 PMCID: PMC6967182 DOI: 10.2174/1573409915666190502153307] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 03/19/2019] [Accepted: 04/18/2019] [Indexed: 12/01/2022]
Abstract
Introduction Androgen Receptor (AR) plays a pivotal role in the development of male sex and contributes to prostate cancer growth. Different from other nuclear receptors that bind to the co-regulator LxxLL motif in coregulator peptide interaction, the AR Ligand Binding Domain (LBD) prefers to bind to the FxxLF motif. BUD31, a novel co-regulator with FxxLF motif, has been demonstrated to suppress wild-type and mutated AR-mediated prostate cancer growth. Methods To find out the interaction mechanisms of BUD31 with WT/T877A/W741L AR complex, molecular dynamics simulations were employed to study the complex BUD31 and WT/mutant ARs. The molecular mechanics Poisson-Boltzmann surface area (MM-PBSA) results demonstrated that T877A and W741L point mutations can reduce the binding affinity between BUD31 and AR. The RMSF and dynamic cross-correlation analysis indicated that amino acid point mutations can affect the motions of loop residues in the AR structure. Results These results indicated that AR co-regulator binding site AF2 can serve as a target for drug discovery to solve the resistance problem.
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Affiliation(s)
- Tianqing Song
- School of Pharmacy, Lanzhou University, 199 West Donggang Rd., 730000 Lanzhou, China
| | - Jiazhong Li
- School of Pharmacy, Lanzhou University, 199 West Donggang Rd., 730000 Lanzhou, China
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95
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Chung WM, Ho YP, Chang WC, Dai YC, Chen L, Hung YC, Ma WL. Increase Paclitaxel Sensitivity to Better Suppress Serous Epithelial Ovarian Cancer via Ablating Androgen Receptor/Aryl Hydrocarbon Receptor-ABCG2 Axis. Cancers (Basel) 2019; 11:cancers11040463. [PMID: 30986993 PMCID: PMC6521308 DOI: 10.3390/cancers11040463] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 03/11/2019] [Accepted: 03/27/2019] [Indexed: 12/15/2022] Open
Abstract
Background: Epithelial ovarian cancer (EOC) is one of the most lethal gynecological malignancies and presents chemoresistance after chemotherapy treatment. Androgen receptor (AR) has been known to participate in proliferation. Yet the mechanisms of the resistance of this drug and its linkage to the AR remains unclear. Methods: To elucidate AR-related paclitaxel sensitivity, co-IP, luciferase reporter assay and ChIP assay were performed to identify that AR direct-regulated ABCG2 expression under paclitaxel treatment. IHC staining by AR antibody presented higher AR expression in serous-type patients than other types. AR degradation enhancer (ASC-J9) was used to examine paclitaxel-associated and paclitaxel-resistant cytotoxicity in vitro and in vivo. Results: We found AR/aryl hydrocarbon receptor (AhR)-mediates ABCG2 expression and leads to a change in paclitaxel cytotoxicity/sensitivity in EOC serous subtype cell lines. Molecular mechanism study showed that paclitaxel activated AR transactivity and bound to alternative ARE in the ABCG2 proximal promoter region. To identify AR as a potential therapeutic target, the ASC-J9 was used to re-sensitize paclitaxel-resistant EOC tumors upon paclitaxel treatment in vitro and in vivo. Conclusion: The results demonstrated that activation of AR transactivity beyond the androgen-associated biological effect. This novel AR mechanism explains that degradation of AR is the most effective therapeutic strategy for treating AR-positive EOC serous subtype.
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Affiliation(s)
- Wei-Min Chung
- Graduate Institution of Clinical Medical Science, and Graduate Institute of BioMedical Sciences, School of Medicine, China Medical University, Taichung 40403, Taiwan.
- Sex Hormone Research Center, Department of Obstetrics and Gynecology, and Reproductive Medicine Center, China Medical University Hospital, Taichung 40403, Taiwan.
| | - Yen-Ping Ho
- Sex Hormone Research Center, Department of Obstetrics and Gynecology, and Reproductive Medicine Center, China Medical University Hospital, Taichung 40403, Taiwan.
| | - Wei-Chun Chang
- Graduate Institution of Clinical Medical Science, and Graduate Institute of BioMedical Sciences, School of Medicine, China Medical University, Taichung 40403, Taiwan.
- Sex Hormone Research Center, Department of Obstetrics and Gynecology, and Reproductive Medicine Center, China Medical University Hospital, Taichung 40403, Taiwan.
| | - Yuan-Chang Dai
- Department of Pathology, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chia-Yi City 60002, Taiwan.
| | - Lumin Chen
- Sex Hormone Research Center, Department of Obstetrics and Gynecology, and Reproductive Medicine Center, China Medical University Hospital, Taichung 40403, Taiwan.
- Department of OBs & GYN, BenQ Medical Center, Suzhou 215004, Jiangsu Province, China.
| | - Yao-Ching Hung
- Graduate Institution of Clinical Medical Science, and Graduate Institute of BioMedical Sciences, School of Medicine, China Medical University, Taichung 40403, Taiwan.
- Sex Hormone Research Center, Department of Obstetrics and Gynecology, and Reproductive Medicine Center, China Medical University Hospital, Taichung 40403, Taiwan.
| | - Wen-Lung Ma
- Graduate Institution of Clinical Medical Science, and Graduate Institute of BioMedical Sciences, School of Medicine, China Medical University, Taichung 40403, Taiwan.
- Sex Hormone Research Center, Department of Obstetrics and Gynecology, and Reproductive Medicine Center, China Medical University Hospital, Taichung 40403, Taiwan.
- Department of Nursing, Asia University, Taichung 41354, Taiwan.
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96
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Giannattasio S, Megiorni F, Di Nisio V, Del Fattore A, Fontanella R, Camero S, Antinozzi C, Festuccia C, Gravina GL, Cecconi S, Dominici C, Di Luigi L, Ciccarelli C, De Cesaris P, Riccioli A, Zani BM, Lenzi A, Pestell RG, Filippini A, Crescioli C, Tombolini V, Marampon F. Testosterone-mediated activation of androgenic signalling sustains in vitro the transformed and radioresistant phenotype of rhabdomyosarcoma cell lines. J Endocrinol Invest 2019; 42:183-197. [PMID: 29790086 DOI: 10.1007/s40618-018-0900-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 05/07/2018] [Indexed: 01/01/2023]
Abstract
PURPOSE Rhabdomyosarcoma (RMS), the most common soft-tissue sarcoma in childhood, rarely affects adults, preferring male. RMS expresses the receptor for androgen (AR) and responds to androgen; however, the molecular action of androgens on RMS is unknown. METHODS Herein, testosterone (T) effects were tested in embryonal (ERMS) and alveolar (ARMS) RMS cell lines, by performing luciferase reporter assay, RT-PCR, and western blotting experiments. RNA interference experiments or bicalutamide treatment was performed to assess the specific role of AR. Radiation treatment was delivered to characterise the effects of T treatment on RMS intrinsic radioresistance. RESULTS Our study showed that RMS cells respond to sub-physiological levels of T stimulation, finally promoting AR-dependent genomic and non-genomic effects, such as the transcriptional regulation of several oncogenes, the phosphorylation-mediated post-transductional modifications of AR and the activation of ERK, p38 and AKT signal transduction pathway mediators that, by physically complexing or not with AR, participate in regulating its transcriptional activity and the expression of T-targeted genes. T chronic daily treatment, performed as for the hormone circadian rhythm, did not significantly affect RMS cell growth, but improved RMS clonogenic and radioresistant potential and increased AR mRNA both in ERMS and ARMS. AR protein accumulation was evident in ERMS, this further developing an intrinsic T-independent AR activity. CONCLUSIONS Our results suggest that androgens sustain and improve RMS transformed and radioresistant phenotype, and therefore, their therapeutic application should be avoided in RMS post puberal patients.
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Affiliation(s)
- S Giannattasio
- Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Rome, Italy
| | - F Megiorni
- Department of Paediatrics, Sapienza University of Rome, Rome, Italy
| | - V Di Nisio
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | - A Del Fattore
- Multi-Factorial Disease and Complex Phenotype Research Area, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - R Fontanella
- Department of Anatomy, Histology, Forensic Medicine and Orthopedics, Sapienza University of Rome, Rome, Italy
| | - S Camero
- Department of Paediatrics, Sapienza University of Rome, Rome, Italy
| | - C Antinozzi
- Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Rome, Italy
| | - C Festuccia
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, Via Vetoio 1, 67100, L'Aquila, Coppito, Italy
| | - G L Gravina
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, Via Vetoio 1, 67100, L'Aquila, Coppito, Italy
| | - S Cecconi
- Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy
| | - C Dominici
- Department of Paediatrics, Sapienza University of Rome, Rome, Italy
| | - L Di Luigi
- Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Rome, Italy
| | - C Ciccarelli
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, Via Vetoio 1, 67100, L'Aquila, Coppito, Italy
| | - P De Cesaris
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, Via Vetoio 1, 67100, L'Aquila, Coppito, Italy
| | - A Riccioli
- Department of Anatomy, Histology, Forensic Medicine and Orthopedics, Sapienza University of Rome, Rome, Italy
| | - B M Zani
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, Via Vetoio 1, 67100, L'Aquila, Coppito, Italy
| | - A Lenzi
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - R G Pestell
- Pennsylvania Center for Cancer and Regenerative Medicine, Wynnewood, PA, 19096, USA
| | - A Filippini
- Department of Anatomy, Histology, Forensic Medicine and Orthopedics, Sapienza University of Rome, Rome, Italy
| | - C Crescioli
- Department of Movement, Human and Health Sciences, University of Rome "Foro Italico", Rome, Italy
| | - V Tombolini
- Department of Radiotherapy, Policlinico Umberto I, Sapienza University of Rome, Rome, Italy
| | - F Marampon
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, Via Vetoio 1, 67100, L'Aquila, Coppito, Italy.
- Department of Radiotherapy, Policlinico Umberto I, Sapienza University of Rome, Rome, Italy.
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97
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Jin Y, Duan M, Wang X, Kong X, Zhou W, Sun H, Liu H, Li D, Yu H, Li Y, Hou T. Communication between the Ligand-Binding Pocket and the Activation Function-2 Domain of Androgen Receptor Revealed by Molecular Dynamics Simulations. J Chem Inf Model 2019; 59:842-857. [DOI: 10.1021/acs.jcim.8b00796] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Ye Jin
- Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, China
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Mojie Duan
- Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China
| | - Xuwen Wang
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Xiaotian Kong
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Wenfang Zhou
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Huiyong Sun
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Hui Liu
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Dan Li
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Huidong Yu
- Rongene Pharma Co., Ltd., Shenzhen, Guangdong 518054, China
| | - Youyong Li
- Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, China
| | - Tingjun Hou
- Institute of Functional Nano and Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, China
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
- State Key Lab of CAD&CG, Zhejiang University, Hangzhou, Zhejiang 310058, China
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98
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Tyagi M, Cheema MS, Dryhurst D, Eskiw CH, Ausió J. Metformin alters H2A.Z dynamics and regulates androgen dependent prostate cancer progression. Oncotarget 2018; 9:37054-37068. [PMID: 30651935 PMCID: PMC6319340 DOI: 10.18632/oncotarget.26457] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Accepted: 11/05/2018] [Indexed: 12/13/2022] Open
Abstract
Epigenetic mechanisms involved in prostate cancer include hypermethylation of tumor suppressor genes, general hypomethylation of the genome, and alterations in histone posttranslational modifications (PTMs). In addition, over expression of the histone variant H2A.Z as well as deregulated expression of Polycomb group proteins including EZH2 have been well-documented. Recent evidence supports a role for metformin in prostate cancer (PCa) treatment. However, the mechanism of action of metformin in PCa is poorly understood. We provide data showing that metformin epigenetically targets PCa by altering the levels and gene binding dynamics of histone variant H2A.Z. Moreover, we show that the increase in H2A.Z upon metformin treatment occurs preferentially due to H2A.Z.1 isoform. Chromatin immunoprecipitation (ChIP)-RT PCR analysis indicates that metformin treatment results in an increased H2A.Z occupancy on the androgen receptor (AR) and AR-regulated genes that is more prominent in the androgen dependent AR positive LNCaP cells. Repression of H2A.Z.1 gene by siRNA-mediated knock down identified this H2A.Z isoform to be responsible. Based on preliminary data with an EZH2-specific inhibitor, we suggest that the effects of metformin on the early stages of PCa may involve both EZH2 and H2A.Z through the alteration of different molecular pathways.
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Affiliation(s)
- Monica Tyagi
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, BC, Canada
| | - Manjinder S. Cheema
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, BC, Canada
| | | | - Christopher H. Eskiw
- Department of Food and Bioproduct Sciences, University of Saskatchewan, Saskatoon, SK, Canada
| | - Juan Ausió
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, BC, Canada
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99
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Parsons TK, Pratt RN, Tang L, Wu Y. An active and selective molecular mechanism mediating the uptake of sex steroids by prostate cancer cells. Mol Cell Endocrinol 2018; 477:121-131. [PMID: 29928927 DOI: 10.1016/j.mce.2018.06.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 05/31/2018] [Accepted: 06/16/2018] [Indexed: 12/21/2022]
Abstract
Steroid hormones play important roles in normal physiological functions and diseases. Sex steroids hormones are important in the biology and treatment of sex hormone-related cancer such as prostate cancer and breast cancer. Cells may take up steroids using multiple mechanisms. The conventionally accepted hypothesis that steroids cross cell membrane through passive diffusion has not been tested rigorously. Experimental data suggested that cells may take up sex steroid using an active uptake mechanism. 3H-testosterone uptake by prostate cancer cells showed typical transporter-mediated uptake kinetic. Cells retained testosterone taken up from the medium. The uptake of testosterone was selective for certain steroid hormones but not others. Data also indicated that the active and selective uptake mechanism resided in cholesterol-rich membrane domains, and may involve ATP and membrane transporters. In summary, the present study provided strong evidence to support the existence of an active and selective molecular mechanism for sex steroid uptake.
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Affiliation(s)
- Todd K Parsons
- Department of Urology, Roswell Park Comprehensive Cancer Center, Elm and Carlton Streets, Buffalo, NY, 14263, USA
| | - Rachel N Pratt
- Department of Cancer Prevention and Control, Roswell Park Comprehensive Cancer Center, Elm and Carlton Streets, Buffalo, NY, 14263, USA
| | - Li Tang
- Department of Cancer Prevention and Control, Roswell Park Comprehensive Cancer Center, Elm and Carlton Streets, Buffalo, NY, 14263, USA
| | - Yue Wu
- Department of Urology, Roswell Park Comprehensive Cancer Center, Elm and Carlton Streets, Buffalo, NY, 14263, USA.
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100
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Kuo PL, Tseng JY, Chen HI, Wu CY, Omar HA, Wang CY, Cheng HY, Hsu CC, Fu TF, Teng YN. Identification of SEPTIN12 as a novel target of the androgen and estrogen receptors in human testicular cells. Biochimie 2018; 158:1-9. [PMID: 30513371 DOI: 10.1016/j.biochi.2018.11.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Accepted: 11/29/2018] [Indexed: 11/16/2022]
Abstract
SEPTIN12 (SEPT12) is a testis-enriched gene that is downregulated in the testis of infertile men with severe spermatogenic defects. While SEPT12 is involved in spermatogenic failure and sperm motility disorder, SEPT12 transcriptional regulation is still unknown. Here we report the promoter region of SEPT12 as a 245 bp segment upstream of the transcription start site. One androgen receptor (AR) and two estrogen receptor α (ERα) binding sites in this region were initially identified by bioinformatics prediction and confirmed by chromatin immunoprecipitation assay. Truncated ERα or AR binding sites decreased the promoter activity, which indicated that the ERα and AR are essential for the SEPT12 promoter. On the other hand, the promoter activity was enhanced by the treatment with 17β-estradiol (E2) and 5α-dihydrotestosterone (5α-DHT). Thus, one androgen and two estrogen hormone responsive elements located in the promoter of SEPT12 gene can regulate SEPT12 expression. Two single nucleotide polymorphisms (SNPs), rs759992 T > C and rs3827527 C > T, were observed in the SEPT12 gene promoter region and were able to decrease the promoter activity. In conclusion, the current work identified the promoter of the human SEPT12 gene and provided key evidence about its transcriptional regulation via E2 and 5α-DHT. Since SEPT12 has an important role in spermatogenesis, SEPT12 expression analysis can be developed as a potential tool for the assessment of environmental or food pollution by hormones or for the evaluation of the risk of endocrine-disrupting chemicals (EDCs) in general.
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Affiliation(s)
- Pao-Lin Kuo
- Department of Obstetrics & Gynecology, National Cheng Kung University, College of Medicine, Tainan, 701, Taiwan
| | - Jie-Yun Tseng
- Department of Biological Sciences and Technology, National University of Tainan, Tainan, 700, Taiwan
| | - Hau-Inh Chen
- Department of Research, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City 231, Taiwan
| | - Chia-Yun Wu
- Department of Biological Sciences and Technology, National University of Tainan, Tainan, 700, Taiwan
| | - Hany A Omar
- Sharjah Institute for Medical Research and College of Pharmacy, University of Sharjah, Sharjah, 27272, United Arab Emirates; Department of Pharmacology, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, 62514, Egypt
| | - Chia-Yih Wang
- Department of Cell Biology and Anatomy, National Cheng Kung University, College of Medicine, Tainan, 701, Taiwan; Institute of Basic Medical Sciences, National Cheng Kung University, College of Medicine, Tainan, 701, Taiwan
| | - Han-Yi Cheng
- Department of Biological Sciences and Technology, National University of Tainan, Tainan, 700, Taiwan
| | - Chao-Chin Hsu
- Institute of Reproductive Medicine, Taipei Medical University Hospital, Taipei, 110, Taiwan
| | - Tzu-Fun Fu
- Institute of Basic Medical Sciences, National Cheng Kung University, College of Medicine, Tainan, 701, Taiwan
| | - Yen-Ni Teng
- Department of Biological Sciences and Technology, National University of Tainan, Tainan, 700, Taiwan.
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