1
|
Age-related decrease in serum dihydrotestosterone concentration is accompanied by impaired vascular status. Exp Gerontol 2023; 173:112104. [PMID: 36693531 DOI: 10.1016/j.exger.2023.112104] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 12/03/2022] [Accepted: 01/20/2023] [Indexed: 01/22/2023]
Abstract
INTRODUCTION The effect of androgens on the cardiovascular system in humans is ambiguous. Moreover, still little is known about the effects of the most potent androgen, dihydrotestosterone, on arterial stiffness and endothelial function. The aim of this study was to evaluate whether age-dependent alterations in serum concentration of dihydrotestosterone and its circulating metabolite are accompanied by changes in endothelial function and arterial stiffness. METHODS In 12 young and 11 older men, basal serum concentrations of testosterone, dehydroepiandrosterone sulfate (DHAE-S), androstenedione (AE), dihydrotestosterone (DHT) and androstanediol glucuronide (ADG) were analyzed in relation to vascular status including cIMT - carotid intima media thickness, cAI - central augmentation index, crPWV - carotid radial pulse wave velocity, SI - stiffness index, endothelial and inflammatory markers. RESULTS Although concentration of testosterone was not different between young and older group, it was demonstrated that DHT, DHEA-S, AE and ADG were significantly lower in older men in comparison to young men (p < 0.01). Interestingly the most surprising difference was found for DHT concentration, that was as much as 61 % lower in aged men that displayed significantly higher values of cIMT, AI, crPWV and SI (p < 10-4), suggestive of arterial stiffness. Furthermore, DHT was negatively correlated to all arterial wall parameters (cAI, crPWV, SI and cIMT), c-reactive protein (CRP) and hyaluronic acid (HA) concentration, as well as positively correlated to markers of endothelial function (MNA and 6-keto-PGF1α) in all studied individuals (n = 23). CONCLUSIONS We have shown that ageing leads to a significant decrease in DHT concentration that is accompanied by impaired arterial wall characteristics and worsened endothelial function. Therefore more attention should be paid to the DHT, DHEA-S and ADG concentrations as a biomarkers for vascular dysfunction in ageing men.
Collapse
|
2
|
Tao K, Bai X, Ji P, Zhang Y, Cao T, Han F, Zhang Z, Guan H, Hu D. A composite of hepatocyte growth factor and 5α-dihydrotestosterone-gelatin microspheres with adipose-derived stem cells enhances wound healing. Skin Pharmacol Physiol 2022; 35:206-214. [PMID: 35439758 DOI: 10.1159/000524188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 12/15/2021] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Reconstructing sebaceous glands is one goal of functionally healing patients who have suffered severe burns, instead of the simple pursuit of wound closure. Effective regeneration of skin appendages remains a challenge in skin wound management and research. OBJECTIVE The aim of this study was to evaluate the differentiation of ADSC into sebaceous glands, and clarified the involvement of HGF and 5α-DHT in this process. METHODS This study used hepatocyte growth factor (HGF)- and 5α-dihydrotestosterone (5α-DHT)-gelatin microspheres to treat human adipose-derived stem cells (ADSCs) and investigated the reconstruction of sebaceous glands. HGF- and 5α-DHT-gelatin microspheres were constructed using microcapsule slow-release technology. Mice full-thickness skin-wound model was established to evaluate wound healing and hematoxylin-eosin staining was utilized to determine the skin structure. RESULTS In vitro analyses found that HGF- and 5α-DHT-gelatin microspheres promoted migration of and tube formation by ADSCs. Furthermore, AKT/ERK signaling, which is related to sebocyte and sweat gland epithelial cell growth, were activated after HGF and 5α-DHT treatment. An in vivo wound healing model demonstrated that ADSCs primed with amnion-loaded HGF- and 5α-DHT-gelatin microspheres promoted wound healing and increased sebaceous gland formation compared to the control group. CONCLUSIONS This study confirms the efficacy of ADSCs treated with amnion and HGF- and 5α-DHT-gelatin microspheres in accelerating wound healing and effectively restoring sebaceous glands. This engineered tissue provides insight into and a novel therapeutic material for burns and full-thickness skin wounds.¬¬.
Collapse
Affiliation(s)
- Ke Tao
- Department of Burn Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Xiaozhi Bai
- Department of Burn Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Peng Ji
- Department of Burn Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Yue Zhang
- Department of Burn Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Tao Cao
- Department of Burn Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Fu Han
- Department of Burn Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Zhi Zhang
- Department of Burn Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Hao Guan
- Department of Burn Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Dahai Hu
- Department of Burn Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| |
Collapse
|
3
|
De Padova S, Urbini M, Schepisi G, Virga A, Meggiolaro E, Rossi L, Fabbri F, Bertelli T, Ulivi P, Ruffilli F, Casadei C, Gurioli G, Rosti G, Grassi L, De Giorgi U. Immunosenescence in Testicular Cancer Survivors: Potential Implications of Cancer Therapies and Psychological Distress. Front Oncol 2021; 10:564346. [PMID: 33520693 PMCID: PMC7844142 DOI: 10.3389/fonc.2020.564346] [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: 05/21/2020] [Accepted: 11/23/2020] [Indexed: 01/13/2023] Open
Abstract
Testicular cancer (TC) is the most frequent solid tumor diagnosed in young adult males. Although it is a curable tumor, it is frequently associated with considerable short-term and long-term morbidity. Both biological and psychological stress experienced during cancer therapy may be responsible for stimulating molecular processes that induce premature aging and deterioration of immune system (immunosenescence) in TC survivors, leading to an increased susceptibility to infections, cancer, and autoimmune diseases. Immunosenescence is a remodeling of immune cell populations with inversion of the CD4:CD8 ratio, accumulation of highly differentiated memory cells, shrinkage of telomeres, shift of T-cell response to Th2 type, and release of pro-inflammatory signals. TC survivors exposed to chemotherapy show features of immunological aging, including an increase in memory T-cells (CD4+ and CD8+) and high expression of the senescence biomarker p16INK4a in CD3+ lymphocytes. However, the plethora of factors involved in the premature aging of TC survivors make the situation more complex if we also take into account the psychological stress and hormonal changes experienced by patients, as well as the high-dose chemotherapy and hematopoietic stem cell transplantation that some individuals may be required to undergo. The relatively young age and the long life expectancy of TC patients bear witness to the importance of improving quality of life and of alleviating long-term side-effects of cancer treatments. Within this context, the present review takes an in-depth look at the molecular mechanisms of immunosenescence, describing experimental evidence of cancer survivor aging and highlighting the interconnected relationship between the many factors modulating the aging of the immune system of TC survivors.
Collapse
Affiliation(s)
- Silvia De Padova
- Psycho-Oncology Unit, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy
| | - Milena Urbini
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy
| | - Giuseppe Schepisi
- Department of Medical Oncology, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy
| | - Alessandra Virga
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy
| | - Elena Meggiolaro
- Psycho-Oncology Unit, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy
| | - Lorena Rossi
- Department of Medical Oncology, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy
| | - Francesco Fabbri
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy
| | - Tatiana Bertelli
- Psycho-Oncology Unit, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy
| | - Paola Ulivi
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy
| | - Federica Ruffilli
- Psycho-Oncology Unit, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy
| | - Chiara Casadei
- Department of Medical Oncology, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy
| | - Giorgia Gurioli
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy
| | - Giovanni Rosti
- Department of Medical Oncology, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy
| | - Luigi Grassi
- Institute of Psychiatry, Department of Biomedical and Specialty Surgical Sciences, University of Ferrara and University Hospital Psychiatry Unit, Integrated Department of Mental Health S. Anna University Hospital and Health Authorities, Ferrara, Italy
| | - Ugo De Giorgi
- Department of Medical Oncology, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy
| |
Collapse
|
4
|
Yang N, Tian H, Zhan E, Zhai L, Jiao P, Yao S, Lu G, Mu Q, Wang J, Zhao A, Zhou Y, Qin S. Reverse-D-4F improves endothelial progenitor cell function and attenuates LPS-induced acute lung injury. Respir Res 2019; 20:131. [PMID: 31242908 PMCID: PMC6595601 DOI: 10.1186/s12931-019-1099-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 06/13/2019] [Indexed: 12/22/2022] Open
Abstract
Background Patients with acute lung injury (ALI) have increased levels of pro-inflammatory mediators, which impair endothelial progenitor cell (EPC) function. Increasing the number of EPC and alleviating EPC dysfunction induced by pro-inflammatory mediators play important roles in suppressing ALI development. Because the high density lipoprotein reverse-D-4F (Rev-D4F) improves EPC function, we hypothesized that it might repair lipopolysaccharide (LPS)-induced lung damage by improving EPC numbers and function in an LPS-induced ALI mouse model. Methods LPS was used to induce ALI in mice, and then the mice received intraperitoneal injections of Rev-D4F. Immunohistochemical staining, flow cytometry, MTT, transwell, and western blotting were used to assess the effect of Rev-D4F on repairment of lung impairment, and improvement of EPC numbers and function, as well as the signaling pathways involved. Results Rev-D4F inhibits LPS-induced pulmonary edema and decreases plasma levels of the pro-inflammatory mediators TNF-α and ET-1 in ALI mice. Rev-D4F inhibited infiltration of red and white blood cells into the interstitial space, reduced lung injury-induced inflammation, and restored injured pulmonary capillary endothelial cells. In addition, Rev-D4F increased numbers of circulating EPC, stimulated EPC differentiation, and improved EPC function impaired by LPS. Rev-D4F also acted via a PI3-kinase-dependent mechanism to restore levels of phospho-AKT, eNOS, and phospho-eNOS suppressed by LPS. Conclusions These findings indicate that Rev-D4F has an important vasculoprotective role in ALI by improving the EPC numbers and functions, and Rev-D4F reverses LPS-induced EPC dysfuncion partially through PI3K/AKT/eNOS signaling pathway. Electronic supplementary material The online version of this article (10.1186/s12931-019-1099-6) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Nana Yang
- Experimental Center for Medical Research, Weifang Medical University, Weifang City, People's Republic of China.
| | - Hua Tian
- Key Laboratory of Atherosclerosis in Universities of Shandong, Institute of Atherosclerosis, Shandong First Medical University, Tai-an City, People's Republic of China
| | - Enxin Zhan
- Institute of Preschool Education, Jinan Preschool Education College, Jinan City, People's Republic of China
| | - Lei Zhai
- Key Laboratory of Atherosclerosis in Universities of Shandong, Institute of Atherosclerosis, Shandong First Medical University, Tai-an City, People's Republic of China
| | - Peng Jiao
- Key Laboratory of Atherosclerosis in Universities of Shandong, Institute of Atherosclerosis, Shandong First Medical University, Tai-an City, People's Republic of China
| | - Shutong Yao
- Key Laboratory of Atherosclerosis in Universities of Shandong, Institute of Atherosclerosis, Shandong First Medical University, Tai-an City, People's Republic of China
| | - Guohua Lu
- Experimental Center for Medical Research, Weifang Medical University, Weifang City, People's Republic of China
| | - Qingjie Mu
- Experimental Center for Medical Research, Weifang Medical University, Weifang City, People's Republic of China
| | - Juan Wang
- Department of Pharmaceutical Sciences, Binzhou Medical College, Yantai City, People's Republic of China
| | - Aihua Zhao
- Department of Emergency Medicine, the second Affiliated Hospital of Shandong First Medical University, Tai-an City, People's Republic of China
| | - Yadong Zhou
- Department of Emergency Medicine, the second Affiliated Hospital of Shandong First Medical University, Tai-an City, People's Republic of China
| | - Shucun Qin
- Key Laboratory of Atherosclerosis in Universities of Shandong, Institute of Atherosclerosis, Shandong First Medical University, Tai-an City, People's Republic of China. .,Heart Center of Shandong First Medical University, Tai-an City, People's Republic of China.
| |
Collapse
|
5
|
Lang Q, Yidong X, Xueguang Z, Sixian W, Wenming X, Tao Z. ETA-mediated anti-TNF-α therapy ameliorates the phenotype of PCOS model induced by letrozole. PLoS One 2019; 14:e0217495. [PMID: 31170164 PMCID: PMC6553850 DOI: 10.1371/journal.pone.0217495] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Accepted: 05/13/2019] [Indexed: 01/08/2023] Open
Abstract
Chronic inflammation is a typical characteristic of polycystic ovary syndrome (PCOS), in which, tumor necrosis factor (TNF)-α plays an important role. We investigated whether anti-TNF-α therapy can alleviate the core phenotypes of PCOS. In pubertal female Wistar rats, release pellets of letrozole (LET) were administered continuously for 90 days to induce PCOS-like phenotypes, followed by treatment with etanercept (ETA), a TNF-α inhibitor. ETA significantly inhibited increases in body weight and androgen, TNF-α, and MCP-1 levels, excessive recruitment of lipid droplets, altered levels of pre-adipose differentiation markers, and abnormal development of follicles. In addition, TNF-α and testosterone (T) levels in the rat sera were significantly positively correlated. Further experiments were performed to investigate the relationship between TNF-α and androgen. Persistent exposure of the RAW 264.7 cell line to low doses of testosterone significantly enhanced TNF-α expression and activated the NF-κB signaling pathway, which were blocked by ETA. Furthermore, treatment with TNF-α promoted the production of testosterone in KGN granulosa cells by reducing CYP19A1 expression, whereas ETA treatment blocked this process. In conclusion, anti-TNF-α therapy with ETA may be an efficient method to alleviate PCOS, whose underlying mechanism may be associated with its ability to reduce excessive androgen levels.
Collapse
Affiliation(s)
- Qin Lang
- Reproductive Medical Center, Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Xie Yidong
- Reproductive Medical Center, Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Zhang Xueguang
- Sichuan University–The Chinese University of Hong Kong Joint Laboratory for Reproductive Medicine, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Wu Sixian
- Sichuan University–The Chinese University of Hong Kong Joint Laboratory for Reproductive Medicine, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- West China School of Pharmacy, Sichuan University, Chengdu, Sichuan, China
| | - Xu Wenming
- Sichuan University–The Chinese University of Hong Kong Joint Laboratory for Reproductive Medicine, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- * E-mail: (ZT); (XW)
| | - Zuo Tao
- Sichuan University–The Chinese University of Hong Kong Joint Laboratory for Reproductive Medicine, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
- * E-mail: (ZT); (XW)
| |
Collapse
|
6
|
Gonçalves RV, Novaes RD, Sarandy MM, Damasceno EM, da Matta SLP, de Gouveia NM, Freitas MB, Espindola FS. 5α-Dihydrotestosterone enhances wound healing in diabetic rats. Life Sci 2016; 152:67-75. [PMID: 27009546 DOI: 10.1016/j.lfs.2016.03.019] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Revised: 02/19/2016] [Accepted: 03/09/2016] [Indexed: 10/22/2022]
Abstract
UNLABELLED Wound healing involves a complex interaction between the cells, extracellular matrix and oxidative response. AIMS Analyze the effects of 5α-Dihydrotestosterone (5α-DTH) ointment in cutaneous wound healing by secondary intention in diabetic Wistar rats. MAIN METHODS Rats (302.23±26.23g, n=48) were maintained in cages with food and water ad libitum in accordance with the Guiding Principles in the Use of Animal Ethics Committee. Diabetes was induced by intraperitoneal injection of streptozotocin (60mg/kg). Three skin wounds (12mm diameter) were created on the animals' back, which were randomized into 6 groups according to the application received: VT group: Vehicle (lanolin), SA group: 0.9% saline solution, NC group: Non-diabetic, CP group: positive control (silver sulfadiazine 0001%), T1 group: Testosterone (10%), T2 group: Testosterone (20%) emulsified in lanolin. The applications were made daily within 21days, and tissues from different wounds were removed every 7days. KEY FINDINGS Both groups treated with testosterone (T1 and T2) showed a significantly higher proportion of type I and type III collagen fibers. Superoxide dismutase levels were significantly higher on days 7 and 14 in testosterone treated groups. Protein carbonyls and MDA were lower in both groups. SIGNIFICANCE We conclude that groups treated with 5α-DTH showed a better healing pattern with complete wound closure, and proved to have a positive effect on the morphology of the scar tissue as well as an antioxidant stimulating effect during secondhand intention skin wounds repair in diabetic rats.
Collapse
Affiliation(s)
| | - Rômulo D Novaes
- Institute of Biomedical Sciences, Department of Structural Biology, Federal University of Alfenas, Alfenas, MG, Brazil
| | - Mariáurea M Sarandy
- Department of General Biology, Federal University of Viçosa, Viçosa, MG, Brazil
| | - Eduardo M Damasceno
- Department of General Biology, Federal University of Viçosa, Viçosa, MG, Brazil
| | - Sérgio L P da Matta
- Department of General Biology, Federal University of Viçosa, Viçosa, MG, Brazil
| | - Neire M de Gouveia
- Institute of Genetics and Biochemistry, Federal University of Uberlândia, Uberlandia, MG, Brazil
| | - Mariella B Freitas
- Department of Animal Biology, Federal University of Viçosa, Viçosa, MG, Brazil
| | - Foued S Espindola
- Institute of Genetics and Biochemistry, Federal University of Uberlândia, Uberlandia, MG, Brazil
| |
Collapse
|
7
|
Musicki B, Bella AJ, Bivalacqua TJ, Davies KP, DiSanto ME, Gonzalez-Cadavid NF, Hannan JL, Kim NN, Podlasek CA, Wingard CJ, Burnett AL. Basic Science Evidence for the Link Between Erectile Dysfunction and Cardiometabolic Dysfunction. J Sex Med 2015; 12:2233-55. [PMID: 26646025 DOI: 10.1111/jsm.13069] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
INTRODUCTION Although clinical evidence supports an association between cardiovascular/metabolic diseases (CVMD) and erectile dysfunction (ED), scientific evidence for this link is incompletely elucidated. AIM This study aims to provide scientific evidence for the link between CVMD and ED. METHODS In this White Paper, the Basic Science Committee of the Sexual Medicine Society of North America assessed the current literature on basic scientific support for a mechanistic link between ED and CVMD, and deficiencies in this regard with a critical assessment of current preclinical models of disease. RESULTS A link exists between ED and CVMD on several grounds: the endothelium (endothelium-derived nitric oxide and oxidative stress imbalance); smooth muscle (SM) (SM abundance and altered molecular regulation of SM contractility); autonomic innervation (autonomic neuropathy and decreased neuronal-derived nitric oxide); hormones (impaired testosterone release and actions); and metabolics (hyperlipidemia, advanced glycation end product formation). CONCLUSION Basic science evidence supports the link between ED and CVMD. The Committee also highlighted gaps in knowledge and provided recommendations for guiding further scientific study defining this risk relationship. This endeavor serves to develop novel strategic directions for therapeutic interventions.
Collapse
Affiliation(s)
- Biljana Musicki
- The James Buchanan Brady Urological Institute and Department of Urology, The Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Anthony J Bella
- Division of Urology, Department of Surgery and Department of Neuroscience, Ottawa Hospital Research Institute at the University of Ottawa, Ottawa, ON, Canada
| | - Trinity J Bivalacqua
- The James Buchanan Brady Urological Institute and Department of Urology, The Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Kelvin P Davies
- Department of Urology, Albert Einstein College of Medicine, New York, NY, USA
| | - Michael E DiSanto
- Department of Surgery/Division of Urology, Cooper University Hospital, Camden, NJ, USA
| | - Nestor F Gonzalez-Cadavid
- Division of Urology, Department of Surgery, Harbor-UCLA Medical Center and Los Angeles Biomedical Research Institute, Torrance, CA, USA.,Department of Urology, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Johanna L Hannan
- Department of Physiology, Brody School of Medicine, East Carolina University, Greenville, NC, USA
| | - Noel N Kim
- Institute for Sexual Medicine, San Diego, CA, USA
| | - Carol A Podlasek
- Departments of Urology, Physiology, and Bioengineering, University of Illinois at Chicago, Chicago, IL, USA
| | - Christopher J Wingard
- Department of Physiology, Brody School of Medicine, East Carolina University, Greenville, NC, USA
| | - Arthur L Burnett
- The James Buchanan Brady Urological Institute and Department of Urology, The Johns Hopkins School of Medicine, Baltimore, MD, USA
| |
Collapse
|
8
|
Torres-Estay V, Carreño DV, San Francisco IF, Sotomayor P, Godoy AS, Smith GJ. Androgen receptor in human endothelial cells. J Endocrinol 2015; 224:R131-7. [PMID: 25563353 PMCID: PMC4700832 DOI: 10.1530/joe-14-0611] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Androgen receptor (AR) is a ligand-inducible transcription factor, and a member of the steroid-thyroid-retinoid receptor superfamily, that mediates the biological effects of androgens in a wide range of physiological and pathological processes. AR expression was identified in vascular cells nearly 20 years ago, and recent research has shown that AR mediates a variety of actions of androgens in endothelial and vascular smooth muscle cells. In this mini-review, we review evidence indicating the importance of AR in human endothelial cell (HUVEC) homeostatic and pathogenic processes. Although a role for AR in the modulation of HUVEC biology is evident, the molecular mechanisms by which AR regulates HUVEC homeostasis and disease processes are not fully understood. Understanding these mechanisms could provide critical insights into the processes of pathogenesis of diseases ranging from cardiovascular disease to cancer that are major causes of human morbidity and mortality.
Collapse
Affiliation(s)
- Verónica Torres-Estay
- Departamento de FisiologíaUrologíaPontificia Universidad Católica de Chile, Santiago de Chile, ChileCenter for Integrative Medicine and Innovative SciencesUniversidad Andrés Bello, Santiago de Chile, ChileDepartment of UrologyRoswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, New York 14263, USA
| | - Daniela V Carreño
- Departamento de FisiologíaUrologíaPontificia Universidad Católica de Chile, Santiago de Chile, ChileCenter for Integrative Medicine and Innovative SciencesUniversidad Andrés Bello, Santiago de Chile, ChileDepartment of UrologyRoswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, New York 14263, USA
| | - Ignacio F San Francisco
- Departamento de FisiologíaUrologíaPontificia Universidad Católica de Chile, Santiago de Chile, ChileCenter for Integrative Medicine and Innovative SciencesUniversidad Andrés Bello, Santiago de Chile, ChileDepartment of UrologyRoswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, New York 14263, USA
| | - Paula Sotomayor
- Departamento de FisiologíaUrologíaPontificia Universidad Católica de Chile, Santiago de Chile, ChileCenter for Integrative Medicine and Innovative SciencesUniversidad Andrés Bello, Santiago de Chile, ChileDepartment of UrologyRoswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, New York 14263, USA
| | - Alejandro S Godoy
- Departamento de FisiologíaUrologíaPontificia Universidad Católica de Chile, Santiago de Chile, ChileCenter for Integrative Medicine and Innovative SciencesUniversidad Andrés Bello, Santiago de Chile, ChileDepartment of UrologyRoswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, New York 14263, USA Departamento de FisiologíaUrologíaPontificia Universidad Católica de Chile, Santiago de Chile, ChileCenter for Integrative Medicine and Innovative SciencesUniversidad Andrés Bello, Santiago de Chile, ChileDepartment of UrologyRoswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, New York 14263, USA
| | - Gary J Smith
- Departamento de FisiologíaUrologíaPontificia Universidad Católica de Chile, Santiago de Chile, ChileCenter for Integrative Medicine and Innovative SciencesUniversidad Andrés Bello, Santiago de Chile, ChileDepartment of UrologyRoswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, New York 14263, USA
| |
Collapse
|
9
|
Abstract
PURPOSE OF REVIEW The purpose of this study is to review recent studies that examined the association of endogenous and exogenous testosterone and mortality in older men. RECENT FINDINGS Over the past several years, there has been a steep rise in testosterone prescriptions. The increased use of testosterone occurred in the context of several studies that reported an association between low serum testosterone and increased cardiovascular events and mortality. In contrast, recent studies have reported an association between testosterone treatment and adverse events. A testosterone treatment trial of mobility-impaired elderly men with prevalent cardiovascular disease was stopped due to increased cardiovascular events in the T-treated men and a meta-analysis reported increased cardiovascular events in T-treated men. In two recent large observational studies, testosterone treatment was associated with an increased risk for serious adverse cardiovascular events. SUMMARY Low testosterone is associated with mortality in multiple cohort studies; however, it is unclear if this is a causal association or due to low testosterone being a biomarker of poor health. Given recent reports of adverse outcomes associated with testosterone treatment, a conservative use of testosterone is warranted in men with cardiovascular disease who may be at greater risk for adverse outcomes.
Collapse
Affiliation(s)
- Molly M. Shores
- VA Puget Sound Health Care System, Seattle, WA
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA
| | - Alvin M. Matsumoto
- Department of Medicine, Division of Gerontology & Geriatric Medicine, University of Washington, Seattle, WA
- Geriatric Research, Education and Clinical Care (GRECC), Seattle, WA
| |
Collapse
|
10
|
Testosterone promotes vascular endothelial cell migration via upregulation of ROCK-2/moesin cascade. Mol Biol Rep 2013; 40:6729-35. [PMID: 24065547 DOI: 10.1007/s11033-013-2788-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2013] [Accepted: 09/14/2013] [Indexed: 01/20/2023]
Abstract
Cross-sectional studies have demonstrated a reverse relationship between serum level of testosterone (T) and the incidence rate of cardiovascular disease in men, indicating that T exerts beneficial effects in cardiovascular system. However, the endothelial effects of T are poorly understood. Actin remodeling is essential for endothelial cell movement and vascular repair and this process is controlled by the actin-binding protein moesin. In the present study, we studied the effects of T on actin remodeling, moesin expression and phosphorylation, as well as cell migration in cultured human umbilical endothelial cells (hUVECs). We found that T provoked the formation of cortical actin complexes and membrane protrusions in endothelial cells. Treatment with T induced dose- and time-dependent increase of moesin expression and phosphorylation, which was inhibited by the addition of androgen receptor antagonist hydroxyflutamide (HF). Moreover, T enhanced ROCK-2 activity. The ROCK-2 inhibitor Y27632 or the transfection of ROCK-2 siRNA largely inhibited T-induced moesin expression and phosphorylation, indicating that ROCK-2 pathway is crucial for these effects. T promoted endothelial cell migration, which was inhibited by the addition of HF or Y27632. In conclusion, T induces actin cytoskeleton remodeling by regulating moesin expression and activation, resulting in enhanced endothelial cell migration. Our work adds new insights into endothelial mechanisms of T, which is relevant for its vascular actions.
Collapse
|
11
|
Actions of 17β-estradiol and testosterone in the mitochondria and their implications in aging. Ageing Res Rev 2013; 12:907-17. [PMID: 24041489 DOI: 10.1016/j.arr.2013.09.001] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2013] [Accepted: 09/06/2013] [Indexed: 02/02/2023]
Abstract
A decline in the mitochondrial functions and aging are two closely related processes. The presence of estrogen and androgen receptors and hormone-responsive elements in the mitochondria represents the starting point for the investigation of the effects of 17β-estradiol and testosterone on the mitochondrial functions and their relationships with aging. Both steroids trigger a complex molecular mechanism that involves crosstalk between the mitochondria, nucleus, and plasma membrane, and the cytoskeleton plays a key role in these interactions. The result of this signaling is mitochondrial protection. Therefore, the molecular components of the pathways activated by the sexual steroids could represent targets for anti-aging therapies. In this review, we discuss previous studies that describe the estrogen- and testosterone-dependent actions on the mitochondrial processes implicated in aging.
Collapse
|