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Özkan Karasu Y, Orbak R, Kaşalı K, Berker E, Kantarci A. Porphyromonas gingivalis enhances the senescence-induced increase of 5-alpha reductase in gingival fibroblasts. Clin Oral Investig 2023; 27:5977-5989. [PMID: 37608238 DOI: 10.1007/s00784-023-05211-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 08/14/2023] [Indexed: 08/24/2023]
Abstract
OBJECTIVES Aging is characterized by chronic inflammatory activity. Senescent cells increase with chronic inflammation and age-related pathologies, including periodontal disease. As a critical regulator of tissue inflammaging, we hypothesized that 5α reductase (5αR) is associated with periodontal disease and bacteria-induced senescence in gingival fibroblasts. MATERIALS AND METHODS We recruited 36 patients with periodontitis, measured 5αR immunohistochemically before and after periodontal treatment, and compared the expression of 5αR in gingival biopsies from 12 healthy individuals. We then tested the impact of Porphyromonas gingivalis on gingival fibroblasts treated with or without D-galactose-induced cell senescence. We treated primary gingival fibroblasts with D-galactose-supplemented media (0 µM, 50 µM, 100 µM, 1 mM, 10 mM, 50 mM) to induce senescence. The expression of type 1 and type 2 5αR was analyzed with real-time PCR and immunocytochemistry. The levels of IL-6, IL-8, TNF-α, and MCP-1 in fibroblast cultures were evaluated by multiplex immunoassay. RESULTS In gingival biopsies from patients with periodontal disease, the expression of 5αR was significantly higher than in samples from individuals without periodontal disease (p < 0.001). Periodontal treatment significantly reduced the expression of 5αR in gingival tissues (p < 0.001) to levels comparable in healthy individuals. Gingival fibroblasts exposed to D-galactose-supplemented media had a dose-dependent and significant increase in 5αR expression (p < 0.001). P. gingivalis caused statistically higher type 1 and type 2 5αR expression in gingival fibroblast cells. This effect was exacerbated by the lower doses of D-galactose (p = 0.037). Cells infected with P. gingivalis produced significantly higher levels of IL-6, IL-8, TNF-α, and MCP-1 (p < 0.05) regardless of the D-galactose exposure. CONCLUSION The results suggested that 5αR plays a role in periodontal disease and mediates the senescence-induced response to P. gingivalis in gingival fibroblasts. CLINICAL RELEVANCE Periodontal diseases and aging can increase the production of 5-alpha reductase in the gingival tissue.
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Affiliation(s)
- Yerda Özkan Karasu
- The Forsyth Institute, Cambridge, MA, USA
- Faculty of Dentistry, Department of Periodontology, Ataturk University, Erzurum, Turkey
| | - Recep Orbak
- Faculty of Dentistry, Department of Periodontology, Ataturk University, Erzurum, Turkey
| | - Kamber Kaşalı
- Faculty of Medicine, Department of Biostatistics, Ataturk University, Erzurum, Turkey
| | - Ezel Berker
- Faculty of Dentistry, Department of Periodontology, Hacettepe University, Ankara, Turkey
- Faculty of Dentistry, Department of Periodontology, Istanbul Medipol University, Istanbul, Turkey
| | - Alpdogan Kantarci
- The Forsyth Institute, Cambridge, MA, USA.
- School of Dental Medicine, Harvard University, Boston, MA, USA.
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Shi R, Li S, Liu P, Guo L, Gong S, Wan Y. Effects of testosterone on skin structure and factors related to androgen conversion and binding in Hetian sheep. Trop Anim Health Prod 2022; 54:218. [PMID: 35759149 DOI: 10.1007/s11250-022-03216-5] [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: 12/23/2021] [Accepted: 06/18/2022] [Indexed: 12/06/2022]
Abstract
The effects of androgens on human skin mainly include the regulation of growth and differentiation of hair follicles and sebaceous glands. Androgens may have some physiological roles in sheep skin that are similar to those of humans, but further confirmation is needed. Therefore, Hetian sheep were chosen in this study as an animal model to explore the effects of testosterone on skin structure and factors related to androgen conversion and binding in Hetian sheep. The sheep were treated with different concentrations of testosterone for 42 days. Skin tissue sections were prepared and then subjected to hematoxylin-eosin, Sacpic, Masson's trichrome, and Oil Red O staining to observe changes in skin morphology. Changes in the content of blood-related factors were also detected using ELISA kits. The skin tissue distribution of androgen receptor was explored by immunohistochemistry and immunofluorescence assays. The results showed that testosterone significantly increases the sebaceous gland area and stimulates the formation of new sebaceous glands. Further exploration revealed that testosterone promotes the proliferation of sebaceous gland juvenile cells. However, testosterone was found to have no significant effect on hair follicle density and hair follicle structure. Testosterone increased dihydrotestosterone levels but decreased 5α-reductase 1 and 5α-reductase 2 levels. The androgen receptors were distributed in the hair follicles, sebaceous glands, and some major skin appendages of Hetian sheep. This study suggests that androgens can be effective in regulating sebum production in sheep. This study will help advance research efforts to further explore the molecular and cellular mechanisms by which androgens modify sheep follicles and sebaceous glands.
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Affiliation(s)
- Ruijun Shi
- Construction Corps Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin, College of Life Science and Technology, Tarim University, Alar, Xinjiang, China
| | - Shuwei Li
- Construction Corps Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin, College of Life Science and Technology, Tarim University, Alar, Xinjiang, China.
| | - Penggang Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, China
| | - Lili Guo
- Construction Corps Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin, College of Life Science and Technology, Tarim University, Alar, Xinjiang, China
| | - Shujuan Gong
- Construction Corps Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin, College of Life Science and Technology, Tarim University, Alar, Xinjiang, China
| | - Yu Wan
- Construction Corps Key Laboratory of Protection and Utilization of Biological Resources in Tarim Basin, College of Life Science and Technology, Tarim University, Alar, Xinjiang, China
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Abdin R, Zhang Y, Jimenez JJ. Treatment of Androgenetic Alopecia Using PRP to Target Dysregulated Mechanisms and Pathways. Front Med (Lausanne) 2022; 9:843127. [PMID: 35372424 PMCID: PMC8965895 DOI: 10.3389/fmed.2022.843127] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Accepted: 02/14/2022] [Indexed: 11/19/2022] Open
Abstract
Androgenetic alopecia (“AGA”) is the most prevalent type of progressive hair loss, causing tremendous psychological and social stress in patients. However, AGA treatment remains limited in scope. The pathogenesis of androgenetic alopecia is not completely understood but is known to involve a hair follicle miniaturization process in which terminal hair is transformed into thinner, softer vellus-like hair. This process is related to the dysregulation of the Wnt/β-catenin signaling pathway, which causes premature termination of the anagen growth phase in hair follicles. Historically used for wound healing, platelet rich plasma (“PRP”) has recently been at the forefront of potential AGA treatment. PRP is an autologous preparation of plasma that contains a high number of platelets and their associated growth factors such as EGF, IGF-1, and VEGF. These factors are known to individually play important roles in regulating hair follicle growth. However, the clinical effectiveness of PRP is often difficult to characterize and summarize as there are wide variabilities in the PRP preparation and administration protocols with no consensus on which protocol provides the best results. This study follows the previous review from our group in 2018 by Cervantes et al. to analyze and discuss recent clinical trials using PRP for the treatment of AGA. In contrast to our previous publication, we include recent clinical trials that assessed PRP in combination or in direct comparison with standard of care procedures for AGA such as topical minoxidil and/or oral finasteride. Overall, this study aims to provide an in-depth analysis of PRP in the treatment of AGA based on the evaluation of 17 recent clinical trials published between 2018 and October 2021. By closely examining the methodologies of each clinical trial included in our study, we additionally aim to provide an overall consensus on how PRP can be best utilized for the treatment of AGA.
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Affiliation(s)
- Rama Abdin
- Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL, United States
| | - Yusheng Zhang
- Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Joaquin J Jimenez
- Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, United States
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Antioxidation, Anti-Inflammation, and Regulation of SRD5A Gene Expression of Oryza sativa cv. Bue Bang 3 CMU Husk and Bran Extracts as Androgenetic Alopecia Molecular Treatment Substances. PLANTS 2022; 11:plants11030330. [PMID: 35161311 PMCID: PMC8840328 DOI: 10.3390/plants11030330] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 01/20/2022] [Accepted: 01/24/2022] [Indexed: 02/07/2023]
Abstract
Androgenetic alopecia (AGA), a hair loss disorder, is a genetic predisposition to sensitive androgens, inflammation, and oxidative stress. Unfortunately, current treatments with synthetic medicines contain a restricted mechanism along with side effects, whereas the bioactive constituents of plant extracts are multifunctional, with fewer side effects. The massive amounts of rice husk and bran are agricultural wastes that may cause pollution and environmental problems. Owing to these rationales, the local rice variety, Bue Bang 3 CMU (BB3CMU), which is grown in northern Thailand, was evaluated for the valuable utilization of rice by-products, husk (BB3CMU-H) and bran (BB3CMU-RB) extracts, for AGA treatment regarding antioxidant, anti-inflammatory, anti-androgenic activities, and the characterization of bioactive compounds. Our study verified that BB3CMU-H had the highest level of polyphenols, contributing to its greater antioxidant activity. Conversely, BB3CMU-RB was the predominant source of tocopherols, resulting in better anti-androgenic activities regarding the downregulation of steroid 5α-reductase genes (SRD5A). Notably, anti-inflammation via the attenuation of nitric oxide productions was observed in BB3CMU-H (0.06 ± 0.13 μM) and BB3CMU-RB (0.13 ± 0.01 μM), which were significantly comparable to diclofenac sodium salt (0.13 ± 0.19 μM). Therefore, the combination of BB3CMU-H and BB3CMU-RB could be utilized in cosmeceutical and pharmaceutical applications for AGA patients.
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5
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Ntshingila S, Khumalo NP, Engel M, Arowolo AT. An appraisal of laboratory models of androgenetic alopecia: A systematic review. SKIN HEALTH AND DISEASE 2021; 1:e15. [PMID: 35664985 PMCID: PMC9060143 DOI: 10.1002/ski2.15] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 01/04/2021] [Accepted: 01/05/2021] [Indexed: 12/20/2022]
Abstract
Background Androgenetic alopecia (AGA) is the most common form of non‐scarring alopecia in humans. Several studies have used different laboratory models to study the pathogenesis and interventions for AGA. These study models have proved beneficial and have led to the approval of two drugs. However, the need to build on existing knowledge remains by examining the relevance of study models to the disease. Objective We sought to appraise laboratory or pre‐clinical models of AGA. Method We searched through databases (PubMed, ScienceDirect, Web of Science, World CAT, Scopus and Google Scholar) for articles on AGA‐related studies from 1942 to March 2019 with a focus on study models. Results The search rendered 101 studies after screening and deduplication. Several studies (70) used in vitro models, mostly consisting of two‐dimensional monolayer cells for experiments involving the characterization of androgen and 5‐alpha reductase (5AR) and inhibition thereof, the effects of dihydrotestosterone (DHT) and biomarker(s) of AGA. Twenty‐seven studies used in vivo models of mice and monkeys to investigate DHT synthesis, the expression and inhibition of 5AR and hair growth. Only four studies used AGA‐related or healthy excisional/punch biopsy explants as ex vivo models to study the action of 5AR inhibitors and AGA‐associated genes. No study used three‐dimensional [3‐D] organoids or organotypic human skin culture models. Conclusion We recommend clinically relevant laboratory models like human or patient‐derived 3‐D organoids or organotypic skin in AGA‐related studies. These models are closer to human scalp tissue and minimize the use of laboratory animals and could ultimately facilitate novel therapeutics.
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Affiliation(s)
- S. Ntshingila
- Hair and Skin Research Laboratory Division of Dermatology Department of Medicine Faculty of Health Sciences and Groote Schuur Hospital University of Cape Town Cape Town South Africa
| | - N. P. Khumalo
- Hair and Skin Research Laboratory Division of Dermatology Department of Medicine Faculty of Health Sciences and Groote Schuur Hospital University of Cape Town Cape Town South Africa
| | - M. Engel
- Department of Medicine Faculty of Health Sciences and Groote Schuur Hospital University of Cape Town Cape Town South Africa
| | - A. T. Arowolo
- Hair and Skin Research Laboratory Division of Dermatology Department of Medicine Faculty of Health Sciences and Groote Schuur Hospital University of Cape Town Cape Town South Africa
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6
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Youn DH, Park J, Kim HL, Jung Y, Kang J, Lim S, Song G, Kwak HJ, Um JY. Berberine Improves Benign Prostatic Hyperplasia via Suppression of 5 Alpha Reductase and Extracellular Signal-Regulated Kinase in Vivo and in Vitro. Front Pharmacol 2018; 9:773. [PMID: 30061836 PMCID: PMC6054997 DOI: 10.3389/fphar.2018.00773] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Accepted: 06/26/2018] [Indexed: 12/29/2022] Open
Abstract
Benign prostate hyperplasia (BPH) is a common disease in elderly men, characterized by proliferated prostate and urinary tract symptoms. The hormonal cascade starting by the action of 5-alpha-reductase (5AR) is known to be one of the pathways responsible for the pathogenesis of BPH. Present investigation evaluated the capacity of berberine (BBR), a nature-derived compound abundant in Coptis japonica, in testosterone-induced BPH rats. Experimental BPH was induced by inguinal injection with testosterone propionate (TP) for 4 weeks. BBR or finasteride, a 5AR inhibitor as positive control, was treated for 4 weeks during BPH. BPH induced by TP evoked weight gaining and histological changes of prostate and BBR treatment improved all the detrimental effects not only weight reduction and histological changes but also suppression of prostate-specific antigen (PSA), which is elevated during BPH. Additionally, BBR suppressed TP-associated increase of 5AR, androgen receptor (AR) and steroid coactivator-1 (SRC-1), the key factors in the pathogenesis of BPH. To evaluate the underlying molecular mechanisms responsible for beneficial effects of BBR, we investigated whether these effects were associated with the mitogen-activated protein kinase pathway. BPH induced by TP showed increased phosphorylation of extracellular signal-regulated kinase (ERK), whereas this was suppressed by BBR treatment. On the other hand, c-jun-N-terminal kinase (JNK) and p38 mitogen-activated protein kinase was not changed in BPH rats. In in vitro study using RWPE-1 cells, a human prostate epithelial cell line. TP increased cell proliferation and BPH-related key factors such as PSA, AR, and 5AR in RWPE-1 cells, and those factors were significantly decreased in the presence of BBR. Furthermore, these proliferative effects in RWPE-1cells were attenuated by treatment with U0126, an ERK inhibitor, confirming BBR can relieve overgrowth of prostate via ERK-dependent signaling. The cotreatment of U0126 and BBR did not affect the change of 5AR nor proliferation compared with U0126 alone, suggesting that the effect of BBR was dependent on the action of ERK. In conclusion, this study shows that BBR can be used as a therapeutic agent for BPH by controlling hyperplasia of prostate through suppression of ERK mechanism.
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Affiliation(s)
- Dong-Hyun Youn
- Department of Pharmacology and Basic Research Laboratory for Comorbidity Regulation, College of Korean Medicine, Kyung Hee University, Seoul, South Korea.,Department of Science in Korean Medicine, Graduate School, Kyung Hee University, Seoul, South Korea
| | - Jinbong Park
- Department of Pharmacology and Basic Research Laboratory for Comorbidity Regulation, College of Korean Medicine, Kyung Hee University, Seoul, South Korea.,Department of Science in Korean Medicine, Graduate School, Kyung Hee University, Seoul, South Korea
| | - Hye-Lin Kim
- Department of Pharmacology and Basic Research Laboratory for Comorbidity Regulation, College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Yunu Jung
- Department of Pharmacology and Basic Research Laboratory for Comorbidity Regulation, College of Korean Medicine, Kyung Hee University, Seoul, South Korea.,Department of Science in Korean Medicine, Graduate School, Kyung Hee University, Seoul, South Korea
| | - JongWook Kang
- Department of Pharmacology and Basic Research Laboratory for Comorbidity Regulation, College of Korean Medicine, Kyung Hee University, Seoul, South Korea.,Department of Science in Korean Medicine, Graduate School, Kyung Hee University, Seoul, South Korea
| | - Seona Lim
- Department of Pharmacology and Basic Research Laboratory for Comorbidity Regulation, College of Korean Medicine, Kyung Hee University, Seoul, South Korea.,Department of Science in Korean Medicine, Graduate School, Kyung Hee University, Seoul, South Korea
| | - Gahee Song
- Department of Pharmacology and Basic Research Laboratory for Comorbidity Regulation, College of Korean Medicine, Kyung Hee University, Seoul, South Korea.,Department of Science in Korean Medicine, Graduate School, Kyung Hee University, Seoul, South Korea
| | - Hyun Jeong Kwak
- Department of Pharmacology and Basic Research Laboratory for Comorbidity Regulation, College of Korean Medicine, Kyung Hee University, Seoul, South Korea
| | - Jae-Young Um
- Department of Pharmacology and Basic Research Laboratory for Comorbidity Regulation, College of Korean Medicine, Kyung Hee University, Seoul, South Korea.,Department of Science in Korean Medicine, Graduate School, Kyung Hee University, Seoul, South Korea
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7
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Zhou CK, Stanczyk FZ, Hafi M, Veneroso CC, Lynch B, Falk RT, Niwa S, Emanuel E, Gao YT, Hemstreet GP, Zolfghari L, Carroll PR, Manyak MJ, Sesterhenn IA, Levine PH, Hsing AW, Cook MB. Circulating and intraprostatic sex steroid hormonal profiles in relation to male pattern baldness and chest hair density among men diagnosed with localized prostate cancers. Prostate 2017; 77:1573-1582. [PMID: 28971497 PMCID: PMC5683095 DOI: 10.1002/pros.23433] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Accepted: 09/06/2017] [Indexed: 11/07/2022]
Abstract
BACKGROUND Prospective cohort studies of circulating sex steroid hormones and prostate cancer risk have not provided a consistent association, despite evidence from animal and clinical studies. However, studies using male pattern baldness as a proxy of early-life or cumulative androgen exposure have reported significant associations with aggressive and fatal prostate cancer risk. Given that androgens underlie the development of patterned hair loss and chest hair, we assessed whether these two dermatological characteristics were associated with circulating and intraprostatic concentrations of sex steroid hormones among men diagnosed with localized prostate cancer. METHODS We included 248 prostate cancer patients from the NCI Prostate Tissue Study, who answered surveys and provided a pre-treatment blood sample as well as fresh frozen adjacent normal prostate tissue. Male pattern baldness and chest hair density were assessed by trained nurses before surgery. General linear models estimated geometric means and 95% confidence intervals (95%CIs) of each hormone variable by dermatological phenotype with adjustment for potential confounding variables. Subgroup analyses were performed by Gleason score (<7 vs ≥7) and race (European American vs. African American). RESULTS We found strong positive associations of balding status with serum testosterone, dihydrotestosterone (DHT), estradiol, and sex hormone-binding globulin (SHBG), and a weak association with elevated intraprostatic testosterone. Conversely, neither circulating nor intraprostatic sex hormones were statistically significantly associated with chest hair density. Age-adjusted correlation between binary balding status and three-level chest hair density was weak (r = 0.05). There was little evidence to suggest that Gleason score or race modified these associations. CONCLUSIONS This study provides evidence that balding status assessed at a mean age of 60 years may serve as a clinical marker for circulating sex hormone concentrations. The weak-to-null associations between balding status and intraprostatic sex hormones reaffirm differences in organ-specific sex hormone metabolism, implying that other sex steroid hormone-related factors (eg, androgen receptor) play important roles in organ-specific androgenic actions, and that other overlapping pathways may be involved in associations between the two complex conditions.
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Affiliation(s)
- Cindy Ke Zhou
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, MD, USA
| | - Frank Z. Stanczyk
- Reproductive Endocrine Research Laboratory, Keck School of Medicine, University of Southern California, CA, USA
| | - Muhannad Hafi
- Department of Epidemiology and Biostatistics, George Washington University, Washington D.C., USA
| | - Carmela C Veneroso
- Department of Epidemiology and Biostatistics, George Washington University, Washington D.C., USA
| | | | - Roni T. Falk
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, MD, USA
| | | | | | - Yu-Tang Gao
- Department of Epidemiology, Shanghai Cancer Institute/Shanghai Jiao Tong University, Shanghai, China
| | | | - Ladan Zolfghari
- Department of Epidemiology and Biostatistics, George Washington University, Washington D.C., USA
| | - Peter R Carroll
- Department of Urology, University of California, San Francisco, CA, USA
| | - Michael J Manyak
- George Washington University, Washington D.D., USA
- GlaxoSmithKline, London, UK
| | | | - Paul H. Levine
- Department of Epidemiology, University of Nebraska Omaha, NE, USA
| | - Ann W. Hsing
- Stanford Prevention Research Center/Cancer Institute, Department of Medicine, and Department of Health Research and Policy, Stanford University, CA, USA
| | - Michael B. Cook
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, MD, USA
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Choi HM, Jung Y, Park J, Kim HL, Youn DH, Kang J, Jeong MY, Lee JH, Yang WM, Lee SG, Ahn KS, Um JY. Cinnamomi Cortex (Cinnamomum verum) Suppresses Testosterone-induced Benign Prostatic Hyperplasia by Regulating 5α-reductase. Sci Rep 2016; 6:31906. [PMID: 27549514 PMCID: PMC4994048 DOI: 10.1038/srep31906] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Accepted: 07/26/2016] [Indexed: 01/13/2023] Open
Abstract
Cinnamomi cortex (dried bark of Cinnamomum verum) is an important drug in Traditional Korean Medicine used to improve blood circulation and Yang Qi. Benign prostatic hyperplasia (BPH) is a common chronic disease in aging men. This study was conducted to determine the effect of Cinnamomi cortex water extract (CC) on BPH. BPH was induced by a pre-4-week daily injection of testosterone propionate (TP). Six weeks of further injection with (a) vehicle, (b) TP, (c) TP + CC, (d) TP + finasteride (Fi) was carried on. As a result, the prostate weight and prostatic index of the CC treatment group were reduced. Histological changes including epithelial thickness and lumen area were recovered as normal by CC treatment. The protein expressions of prostate specific antigen, estrogen receptor α (ERα), androgen receptor (AR), 5α-reductase (5AR), and steroid receptor coactivator 1 were suppressed by treatment of CC. Immunohistochemical assays supported the western blot results, as the expressions of AR and ERα were down-regulated by CC treatment as well. Further in vitro experiments showed CC was able to inhibit proliferation of RWPE-1 cells by suppressing 5AR and AR. These results all together suggest CC as a potential treatment for BPH.
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Affiliation(s)
- Hyun-Myung Choi
- College of Korean Medicine, Basic Research Laboratory for Comorbidity Regulation, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-Gu, Seoul, 130-701, Republic of Korea
| | - Yunu Jung
- Department of Science in Korean Medicine, Graduate School, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-Gu, Seoul, 130-701, Republic of Korea
| | - Jinbong Park
- Department of Science in Korean Medicine, Graduate School, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-Gu, Seoul, 130-701, Republic of Korea
| | - Hye-Lin Kim
- College of Korean Medicine, Basic Research Laboratory for Comorbidity Regulation, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-Gu, Seoul, 130-701, Republic of Korea
| | - Dong-Hyun Youn
- Department of Science in Korean Medicine, Graduate School, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-Gu, Seoul, 130-701, Republic of Korea
| | - JongWook Kang
- Department of Science in Korean Medicine, Graduate School, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-Gu, Seoul, 130-701, Republic of Korea
| | - Mi-Young Jeong
- College of Korean Medicine, Basic Research Laboratory for Comorbidity Regulation, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-Gu, Seoul, 130-701, Republic of Korea
| | - Jong-Hyun Lee
- College of Pharmacy, Dongduk Women's University, 60 Hwarang-ro 13-gil, Seongbuk-gu, Seoul, 136-714, Republic of Korea
| | - Woong Mo Yang
- College of Korean Medicine, Basic Research Laboratory for Comorbidity Regulation, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-Gu, Seoul, 130-701, Republic of Korea
| | - Seok-Geun Lee
- College of Korean Medicine, Basic Research Laboratory for Comorbidity Regulation, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-Gu, Seoul, 130-701, Republic of Korea
| | - Kwang Seok Ahn
- College of Korean Medicine, Basic Research Laboratory for Comorbidity Regulation, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-Gu, Seoul, 130-701, Republic of Korea
| | - Jae-Young Um
- College of Korean Medicine, Basic Research Laboratory for Comorbidity Regulation, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-Gu, Seoul, 130-701, Republic of Korea.,Department of Science in Korean Medicine, Graduate School, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-Gu, Seoul, 130-701, Republic of Korea
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9
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Seleit I, Bakry OA, El Repey HS, Ali R. Intrinsic versus Extrinsic Aging: A Histopathological, Morphometric and Immunohistochemical Study of Estrogen Receptor β and Androgen Receptor. Skin Pharmacol Physiol 2016; 29:178-89. [PMID: 27399919 DOI: 10.1159/000446662] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 04/28/2016] [Indexed: 11/19/2022]
Abstract
Skin is a target organ of sex steroids which play important roles in skin health and disease. The aim of this study is to investigate the expression of estrogen receptor β (ERβ) and androgen receptor (AR) in human skin from different age groups for a better understanding of the hormonal regulation of skin aging. Using standard immunohistochemical techniques, biopsies of sun-unprotected and sun-protected skin were taken from 60 normal subjects. Sun-protected skin showed significantly higher immunoreactivity for ERβ and AR compared to sun-unprotected skin of all age groups. Significantly higher ERβ H score and percent of expression were associated with the 20-35 years age group compared to the groups that were 35-50 years and >50 years old (p < 0.02, p = 0.03, respectively) in sun-unprotected and sun-protected skin (p < 0.001, p = 0.01, respectively). AR H score showed a negative correlation with age (p = 0.04) with no significant difference in immunoreactivity in different age groups, either in sun-unprotected or sun-protected skin. There was also a significant correlation between ERβ H score and epidermal thickness in sun-unprotected (p = 0.04) and sun-protected skin (p = 0.04) in studied subjects regardless of age. The same relationships did not reach significance with AR expression. However, a significant positive correlation was detected between H scores and percent of expression of ERβ and AR in sun-unprotected (p = 0.01, p = 0.02, respectively) and sun-protected skin (p = 0.005, p = 0.02, respectively) regardless of age. In conclusion, both ERβ and AR decline gradually with intrinsic and extrinsic aging. This decline is more obvious with extrinsic aging. Further large-scaled studies are recommended to expand, validate and translate current findings to clinically significant, diagnostic and therapeutic applications. Molecular studies to investigate the probable ligand-independent action of both receptors are warranted. In addition, their gene expression patterns and associated signaling and metabolic pathways can also be tackled to provide a basis for further interventions in pathological processes that involve their dysregulation.
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Affiliation(s)
- Iman Seleit
- Department of Dermatology, Andrology and STDs, Faculty of Medicine, Menoufiya University, Shibin El Koom, Egypt
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10
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Rastegar H, Ashtiani HA, Aghaei M, Barikbin B, Ehsani A. Herbal Extracts Induce Dermal Papilla Cell Proliferation of Human Hair Follicles. Ann Dermatol 2015; 27:667-75. [PMID: 26719634 PMCID: PMC4695417 DOI: 10.5021/ad.2015.27.6.667] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2013] [Revised: 12/30/2013] [Accepted: 02/20/2014] [Indexed: 11/08/2022] Open
Abstract
BACKGROUND The number of people suffering from balding or hair thinning is increasing, despite the advances in various medical therapies. Therefore, it is highly important to develop new therapies to inhibit balding and increase hair proliferation. OBJECTIVE We investigated the effects of herbal extracts commonly used for improving balding in traditional medicine to identify potential agents for hair proliferation. METHODS The expression levels of 5α-reductase isoforms (type I and II) were analyzed using quantitative real-time reverse transcription polymerase chain reaction in the human follicular dermal papilla cells (DPCs). The 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenylteterazolium bromide and bromodeoxyuridine tests were used to evaluate the cell proliferation effect of herbal extracts in DPCs. The expression levels of extracellular signal-regulated kinase (ERK), Akt, cyclin D1, cyclin-dependent kinase 4 (Cdk4), B-cell lymphoma (Bcl-2) and Bcl-2-associated X protein (Bax) were measured using western blot analysis. RESULTS The 5α-reductase isoform mRNAs and proteins were detected in the cultured DPCs, and the expression level of 5α-R2 in DPCs in the presence of the herbal extracts was gradually decreased. Herbal extracts were found to significantly increase the proliferation of human DPCs at concentrations ranging from 1.5% to 4.5%. These results show that the herbal extracts tested affected the protein expressions of ERK, Akt, cyclin D1, Cdk4, Bcl-2, and Bax in DPCs. CONCLUSION These results suggest that herbal extracts exert positive effects on hair proliferation via ERK, Akt, cyclin D1, and Cdk4 signaling in DPCs; they also suggest that herbal extracts could be a great alternative therapy for increasing hair proliferation.
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Affiliation(s)
- Hosein Rastegar
- Food and Drug Control Laboratory and Research Center, Tehran, Iran
| | | | - Mahmoud Aghaei
- Department of Clinical Biochemistry, School of Pharmacy and Isfahan Pharmaceutical Sciences Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Behrooz Barikbin
- Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Slominski A, Zbytek B, Nikolakis G, Manna PR, Skobowiat C, Zmijewski M, Li W, Janjetovic Z, Postlethwaite A, Zouboulis CC, Tuckey RC. Steroidogenesis in the skin: implications for local immune functions. J Steroid Biochem Mol Biol 2013; 137:107-23. [PMID: 23435015 PMCID: PMC3674137 DOI: 10.1016/j.jsbmb.2013.02.006] [Citation(s) in RCA: 249] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2012] [Revised: 01/07/2013] [Accepted: 02/08/2013] [Indexed: 12/13/2022]
Abstract
The skin has developed a hierarchy of systems that encompasses the skin immune and local steroidogenic activities in order to protect the body against the external environment and biological factors and to maintain local homeostasis. Most recently it has been established that skin cells contain the entire biochemical apparatus necessary for production of glucocorticoids, androgens and estrogens either from precursors of systemic origin or, alternatively, through the conversion of cholesterol to pregnenolone and its subsequent transformation to biologically active steroids. Examples of these products are corticosterone, cortisol, testosterone, dihydrotesterone and estradiol. Their local production can be regulated by locally produced corticotropin releasing hormone (CRH), adrenocorticotropic hormone (ACTH) or cytokines. Furthermore the production of glucocorticoids is affected by ultraviolet B radiation. The level of production and nature of the final steroid products are dependent on the cell type or cutaneous compartment, e.g., epidermis, dermis, adnexal structures or adipose tissue. Locally produced glucocorticoids, androgens and estrogens affect functions of the epidermis and adnexal structures as well as local immune activity. Malfunction of these steroidogenic activities can lead to inflammatory disorders or autoimmune diseases. The cutaneous steroidogenic system can also have systemic effects, which are emphasized by significant skin contribution to circulating androgens and/or estrogens. Furthermore, local activity of CYP11A1 can produce novel 7Δ-steroids and secosteroids that are biologically active. Therefore, modulation of local steroidogenic activity may serve as a new therapeutic approach for treatment of inflammatory disorders, autoimmune processes or other skin disorders. In conclusion, the skin can be defined as an independent steroidogenic organ, whose activity can affect its functions and the development of local or systemic inflammatory or autoimmune diseases. This article is part of a Special Issue entitled 'CSR 2013'.
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Affiliation(s)
- Andrzej Slominski
- Department of Pathology and Laboratory Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA; Center for Cancer Research, University of Tennessee Health Science Center, Memphis, TN 38163, USA; Department of Medicine, University of Tennessee Health Science Center, Memphis, TN 38163, USA.
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Kitagawa T, Matsuda KI, Inui S, Takenaka H, Katoh N, Itami S, Kishimoto S, Kawata M. Keratinocyte growth inhibition through the modification of Wnt signaling by androgen in balding dermal papilla cells. J Clin Endocrinol Metab 2009; 94:1288-94. [PMID: 19141591 PMCID: PMC2682470 DOI: 10.1210/jc.2008-1053] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2008] [Accepted: 01/02/2009] [Indexed: 11/19/2022]
Abstract
CONTEXT/OBJECTIVE Androgen induces androgenetic alopecia (AGA), which has a regressive effect on hair growth from the frontal region of the scalp. Conversely, Wnt proteins are known to positively affect mammalian hair growth. We hypothesized that androgen reduces hair growth via an interaction with the Wnt signaling system. The objective of this study was to investigate the effect of androgen on Wnt signaling in dermal papilla (DP) cells. DESIGN The effect of androgen and Wnt3a on keratinocyte proliferation was measured by use of a coculture system consisting of DP cells and keratinocytes. The molecular mechanisms of androgen and Wnt pathway interactions in DP cells were examined by analyzing the expression, intracellular localization, and activity of the androgen receptor (AR) and also downstream Wnt signaling molecules. RESULTS Wnt3a-dependent keratinocyte growth was suppressed by the addition of dihydrotestosterone in coculture with DP cells that were derived from AGA patients, but growth was not suppressed in coculture with DP cells from non-AGA males. Whereas DP cells from both scalp regions expressed AR protein, the expression levels of AR and cotranslocation with beta-catenin, a downstream Wnt signaling molecule, were higher in DP cells of AGA patients than in DP cells from non-AGA males. In addition, significant suppression of Wnt signal-mediated transcription in response to dihydrotestosterone treatment was observed only in DP cells from AGA patients. CONCLUSION These results suggest that Wnt signaling in DP cells is regulated by androgen and this regulation plays a pivotal role in androgen's action on hair growth.
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Affiliation(s)
- Tomoko Kitagawa
- Department of Anatomy and Neurobiology, Kyoto Prefectural University of Medicine, Kawaramachi Hirokouji, Kyoto, Japan
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