101
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Abstract
The skin is considered the mirror of the soul and is affected by neurohormonal triggers, especially stress. Hair follicles, keratinocytes, mast cells, melanocytes, and sebocytes all express sex and stress hormones implicating them in a local "hypothalamic-pituitary-adrenal axis." In particular, the peptides corticotropin-releasing hormone (CRH) and neurotensin (NT) have synergistic action stimulating mast cells and are uniquely elevated in the serum of patients with skin diseases exacerbated by stress. Addressing the neurohormonal regulation of skin function could lead to new targets for effective treatment of inflammatory skin diseases.
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Affiliation(s)
- Theoharis C Theoharides
- Department of Integrative Physiology and Pathobiology, Molecular Immunopharmacology and Drug Discovery Laboratory, Tufts University School of Medicine, 136 Harrison Avenue, Suite J304, Boston, MA, 02111, USA.
- Sackler School of Graduate Biomedical Sciences, Program in Pharmacology and Experimental Therapeutics, Tufts University, Boston, MA, USA.
- Department of Internal Medicine, Tufts University School of Medicine and Tufts Medical Center, Boston, MA, USA.
| | - Julia M Stewart
- Department of Integrative Physiology and Pathobiology, Molecular Immunopharmacology and Drug Discovery Laboratory, Tufts University School of Medicine, 136 Harrison Avenue, Suite J304, Boston, MA, 02111, USA
| | - Alexandra Taracanova
- Department of Integrative Physiology and Pathobiology, Molecular Immunopharmacology and Drug Discovery Laboratory, Tufts University School of Medicine, 136 Harrison Avenue, Suite J304, Boston, MA, 02111, USA
- Sackler School of Graduate Biomedical Sciences, Program in Pharmacology and Experimental Therapeutics, Tufts University, Boston, MA, USA
| | - Pio Conti
- Department of Graduate Medical Sciences, University of Chieti, Chieti, Italy
| | - Christos C Zouboulis
- Departments of Dermatology, Venereology, Allergology and Immunology, Dessau Medical Center, Dessau, Germany
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102
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103
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Oral Administration of Fermented Soymilk Products Protects the Skin of Hairless Mice against Ultraviolet Damage. Nutrients 2016; 8:nu8080514. [PMID: 27556484 PMCID: PMC4997427 DOI: 10.3390/nu8080514] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 08/09/2016] [Accepted: 08/15/2016] [Indexed: 12/16/2022] Open
Abstract
The protective effect of isoflavones on skin damage from ultraviolet (UV) radiation and their bioavailability were investigated in ovariectomized hairless mice fed diets composed of fermented soymilk containing aglycone forms of isoflavones or control soymilk containing glucose-conjugated forms of isoflavones. The erythema intensity of dorsal skin was significantly higher in ovariectomized mice than in sham-operated mice (p < 0.05). The erythema intensity and epidermal thickness of dorsal skin were significantly lower in the fermented soymilk diet group than in the control diet group (each p < 0.05). Levels of cyclobutane pyrimidine dimers in dorsal skin were significantly lower in the fermented soymilk diet group than in the control group (p < 0.05). Serum and dorsal skin isoflavone concentrations were significantly higher in the fermented soymilk diet group than in the soymilk diet group (p < 0.05). These results indicate that oral administration of a fermented soymilk diet increases isoflavone concentrations in the blood and skin, effectively scavenging the reactive oxygen species generated by UV irradiation and exerting an estrogen-like activity, with a consequent protective effect on skin photodamage in hairless mice.
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104
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Chronic UVB-irradiation actuates perpetuated dermal matrix remodeling in female mice: Protective role of estrogen. Sci Rep 2016; 6:30482. [PMID: 27460287 PMCID: PMC4962040 DOI: 10.1038/srep30482] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Accepted: 07/06/2016] [Indexed: 12/21/2022] Open
Abstract
Chronic UVB-exposure and declined estradiol production after menopause represent important factors leading to extrinsic and intrinsic aging, respectively. Remodeling of the extracellular matrix (ECM) plays a crucial role in both responses. Whether the dermal ECM is able to recover after cessation of UVB-irradiation in dependence of estradiol is not known, however of relevance when regarding possible treatment options. Therefore, the endogenous sex hormone production was depleted by ovariectomy in female mice. Half of the mice received estradiol substitution. Mice were UVB-irradiated for 20 weeks and afterwards kept for 10 weeks without irradiation. The collagen-, hyaluronan- and proteoglycan- (versican, biglycan, lumican) matrix, collagen cleavage products and functional skin parameters were analyzed. The intrinsic aging process was characterized by increased collagen fragmentation and accumulation of biglycan. Chronic UVB-irradiation additionally augmented the lumican, versican and hyaluronan content of the dermis. In the absence of further UVB-irradiation the degradation of collagen and accumulation of biglycan in the extrinsically aged group was perpetuated in an excessive matter. Whereas estradiol increased the proteoglycan content, it reversed the effects of the perpetuated extrinsic response on collagen degradation. Suspension of the intrinsic pathway might therefore be sufficient to antagonize UVB-evoked long-term damage to the dermal ECM.
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105
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Bormann F, Rodríguez‐Paredes M, Hagemann S, Manchanda H, Kristof B, Gutekunst J, Raddatz G, Haas R, Terstegen L, Wenck H, Kaderali L, Winnefeld M, Lyko F. Reduced DNA methylation patterning and transcriptional connectivity define human skin aging. Aging Cell 2016; 15:563-71. [PMID: 27004597 PMCID: PMC4854925 DOI: 10.1111/acel.12470] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/21/2016] [Indexed: 11/28/2022] Open
Abstract
Epigenetic changes represent an attractive mechanism for understanding the phenotypic changes associated with human aging. Age‐related changes in DNA methylation at the genome scale have been termed ‘epigenetic drift’, but the defining features of this phenomenon remain to be established. Human epidermis represents an excellent model for understanding age‐related epigenetic changes because of its substantial cell‐type homogeneity and its well‐known age‐related phenotype. We have now generated and analyzed the currently largest set of human epidermis methylomes (N = 108) using array‐based profiling of 450 000 methylation marks in various age groups. Data analysis confirmed that age‐related methylation differences are locally restricted and characterized by relatively small effect sizes. Nevertheless, methylation data could be used to predict the chronological age of sample donors with high accuracy. We also identified discontinuous methylation changes as a novel feature of the aging methylome. Finally, our analysis uncovered an age‐related erosion of DNA methylation patterns that is characterized by a reduced dynamic range and increased heterogeneity of global methylation patterns. These changes in methylation variability were accompanied by a reduced connectivity of transcriptional networks. Our findings thus define the loss of epigenetic regulatory fidelity as a key feature of the aging epigenome.
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Affiliation(s)
- Felix Bormann
- Division of Epigenetics DKFZ‐ZMBH Alliance German Cancer Research Center Heidelberg Germany
| | - Manuel Rodríguez‐Paredes
- Division of Epigenetics DKFZ‐ZMBH Alliance German Cancer Research Center Heidelberg Germany
- University Tumor Center Düsseldorf University of Düsseldorf Düsseldorf Germany
| | | | - Himanshu Manchanda
- Institute for Bioinformatics University Medicine Greifswald Greifswald Germany
| | - Boris Kristof
- Research and Development Beiersdorf AG Hamburg Germany
| | - Julian Gutekunst
- Division of Epigenetics DKFZ‐ZMBH Alliance German Cancer Research Center Heidelberg Germany
| | - Günter Raddatz
- Division of Epigenetics DKFZ‐ZMBH Alliance German Cancer Research Center Heidelberg Germany
| | - Rainer Haas
- University Tumor Center Düsseldorf University of Düsseldorf Düsseldorf Germany
| | | | - Horst Wenck
- Research and Development Beiersdorf AG Hamburg Germany
| | - Lars Kaderali
- Institute for Bioinformatics University Medicine Greifswald Greifswald Germany
| | | | - Frank Lyko
- Division of Epigenetics DKFZ‐ZMBH Alliance German Cancer Research Center Heidelberg Germany
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106
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Abstract
The incidence of many types of cancer arising in organs with non-reproductive functions is significantly higher in male populations than in female populations, with associated differences in survival. Occupational and/or behavioural factors are well-known underlying determinants. However, cellular and molecular differences between the two sexes are also likely to be important. In this Opinion article, we focus on the complex interplay that sex hormones and sex chromosomes can have in intrinsic control of cancer-initiating cell populations, the tumour microenvironment and systemic determinants of cancer development, such as the immune system and metabolism. A better appreciation of these differences between the two sexes could be of substantial value for cancer prevention as well as treatment.
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Affiliation(s)
- Andrea Clocchiatti
- Cutaneous Biology Research Center, Massachusetts General Hospital, Charlestown, Massachusetts 02129, USA
| | - Elisa Cora
- Department of Biochemistry, University of Lausanne, Epalinges, CH-1066, Switzerland
| | - Yosra Zhang
- Cutaneous Biology Research Center, Massachusetts General Hospital, Charlestown, Massachusetts 02129, USA; and the Department of Biochemistry, University of Lausanne, Epalinges, CH-1066, Switzerland
| | - G Paolo Dotto
- Cutaneous Biology Research Center, Massachusetts General Hospital, Charlestown, Massachusetts 02129, USA; and the Department of Biochemistry, University of Lausanne, Epalinges, CH-1066, Switzerland
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107
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Abstract
Cutaneous science has seen considerable development in the last 25 years, in part due to the Omics revolution, and the appreciation that this organ is hardwired into the body's key neuro-immuno-endocrine axes. Moreover, there is greater appreciation of how stratification of skin disorders will permit more targeted and more effective treatments. Against this has been how the remarkable extension in the average human life-span, though in the West at least, this parallels worrying increases in lifestyle-associated conditions like diabetes, skin cancer etc. These demographic trends bring greater urgency to finding clinical solutions for numerous age-related deficits in skin function caused by extrinsic and intrinsic factors. Mechanisms for aging skin include the actions of reactive oxygen species (ROS), mtDNA mutations, and telomere shortening, as well as hormonal changes. We have also significantly improved our understanding of how to harness the skin's considerable regenerative capacity e.g., via its remarkable investment of stem cell subpopulations. In this way we hope to develop new strategies to selectively target the skin's capacity to undergo optimal wound repair and regeneration. Here, the unsung hero of the skin regenerative power may be the humble hair follicle, replete with its compliment of epithelial, mesenchymal, neural and other stem cells. This review introduces the topic of human skin aging, with a focus on how maintenance of function in this complex multi-cell type organ is key for retaining quality of life into old age.
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108
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Abstract
Chronic itch in the elderly is a common problem, with a significant impact on quality of life and sleep in elderly patients. Chronic itch may be attributable to several causes, including dry skin, immunosenescence and neural degeneration. Itch may also be caused by skin diseases, such as seborrhoeic dermatitis and stasis dermatitis; systemic conditions, such as end-stage renal disease and diabetes; and psychogenic conditions, such as depression and anxiety. The use of polypharmacy may also cause itch, with or without a rash. Specifically, thiazides and calcium channel blockers have been known to cause itch in elderly patients. Management should be tailored according to the underlying dermatological or systemic aetiology of itch. Topical treatment is the mainstay of therapy, providing special emphasis on skin hydration and barrier repair. In addition, topical and oral medications that target the nervous system and reduce neuronal hypersensitization, such as gabapentin and selective antidepressants, have a role in treating patients with severe chronic itch. Furthermore, management must account for changes in metabolism and pharmacokinetics of drugs in the aging population in order to prevent the occurrence of adverse effects.
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109
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Humbert P, Dréno B, Krutmann J, Luger TA, Triller R, Meaume S, Seité S. Recommendations for managing cutaneous disorders associated with advancing age. Clin Interv Aging 2016; 11:141-8. [PMID: 26929610 PMCID: PMC4758790 DOI: 10.2147/cia.s96232] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The increasingly aged population worldwide means more people are living with chronic diseases, reduced autonomy, and taking various medications. Health professionals should take these into consideration when managing dermatological problems in elderly patients. Accordingly, current research is investigating the dermatological problems associated with the loss of cutaneous function with age. As cell renewal slows, the physical and chemical barrier function declines, cutaneous permeability increases, and the skin becomes increasingly vulnerable to external factors. In geriatric dermatology, the consequences of cutaneous aging lead to xerosis, skin folding, moisture-associated skin damage, and impaired wound healing. These problems pose significant challenges for both the elderly and their carers. Most often, nurses manage skin care in the elderly. However, until recently, little attention has been paid to developing appropriate, evidence-based, skincare protocols. The objective of this paper is to highlight common clinical problems with aging skin and provide some appropriate advice on cosmetic protocols for managing them. A review of the literature from 2004 to 2014 using PubMed was performed by a working group of six European dermatologists with clinical and research experience in dermatology. Basic topical therapy can restore and protect skin barrier function, which relieves problems associated with xerosis, prevents aggravating moisture-associated skin damage, and enhances quality of life. In conclusion, the authors provide physicians with practical recommendations to assist them in implementing basic skin care for the elderly in an integrated care approach.
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Affiliation(s)
- Philippe Humbert
- Research and Studies Centre on the Integument (CERT), Clinical Investigation Centre (CIC BT506), Department of Dermatology, Besançon University Hospital, University of Franche-Comté, Besançon, France
| | - Brigitte Dréno
- Department of Dermato-Cancerology, Nantes University Hospital, Nantes, France
| | - Jean Krutmann
- IUF-Leibniz Research Institute for Environmental Medicine, Heinrich-Heine-University, Düsseldorf, Germany
| | | | - Raoul Triller
- International Centre of Dermatology, Hertford British Hospital, Levallois, France
| | - Sylvie Meaume
- Geriatric Service, Wounds and Healing, Rothschild Hôspital, Paris, France
| | - Sophie Seité
- La Roche-Posay Dermatological Laboratories, Asnières, France
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110
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Roman II, Constantin AM, Marina ME, Orasan RI. The role of hormones in the pathogenesis of psoriasis vulgaris. ACTA ACUST UNITED AC 2016; 89:11-8. [PMID: 27004020 PMCID: PMC4777452 DOI: 10.15386/cjmed-505] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Revised: 07/30/2015] [Accepted: 08/07/2015] [Indexed: 12/22/2022]
Abstract
Psoriasis vulgaris is a chronic, common skin disease, which affects the patient’s quality of life to the highest degree. Several exogenous factors and endogenous hormonal changes may act as triggers for psoriasis. The skin possesses a true endocrine system, which is very important in multiple systemic diseases. A number of conditions are associated with psoriasis, and its severity can also be influenced by hormones. Even though the sex hormones and prolactin have a major role in psoriasis pathogenicity, there are a lot of other hormones which can influence the psoriasis clinical manifestations: glucocorticoids, epinephrine, thyroid hormones, and insulin.
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Affiliation(s)
- Iulia Ioana Roman
- Department of Physiology, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Anne-Marie Constantin
- Department of Histology, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Mihaela Elena Marina
- Department of Histology, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Remus Ioan Orasan
- Department of Physiology, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
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111
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Abstract
The estrogen receptors, ERα, ERβ, and GPER, mediate the effects of estrogenic compounds on their target tissues. Estrogen receptors are located in the tissues of the female reproductive tract and breast as one would expect, but also in tissues as diverse as bone, brain, liver, colon, skin, and salivary gland. The purpose of this discussion of the estrogen receptors is to provide a brief overview of the estrogen receptors and estrogen action from perspectives such as the historical, physiological, pharmacological, pathological, structural, and ligand perspectives.
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Affiliation(s)
- Kathleen M Eyster
- Division of Basic Biomedical Sciences, Sanford School of Medicine, University of South Dakota, 414 E. Clark St., Vermillion, SD, 57069, USA.
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112
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Kukowska M, Pikuła M, Kukowska-Kaszuba M, Schumacher A, Dzierzbicka K, Trzonkowski P. Synthetic lipopeptides as potential topical therapeutics in wound and skin care: in vitro studies of permeation and skin cells behaviour. RSC Adv 2016. [DOI: 10.1039/c6ra24424f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Wound healing is an extraordinarily complicated process associating with the cell aging, slowing down of cell renewal mechanism and even loss of protective function to environmentally induced oxidative stress.
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Affiliation(s)
- Monika Kukowska
- Department of Organic Chemistry
- Faculty of Chemistry
- Gdansk University of Technology
- 80-233 Gdańsk
- Poland
| | - Michał Pikuła
- Department of Clinical Immunology and Transplantology
- Faculty of Medicine
- Medical University of Gdansk
- 80-211 Gdańsk
- Poland
| | | | - Adriana Schumacher
- Department of Clinical Immunology and Transplantology
- Faculty of Medicine
- Medical University of Gdansk
- 80-211 Gdańsk
- Poland
| | - Krystyna Dzierzbicka
- Department of Organic Chemistry
- Faculty of Chemistry
- Gdansk University of Technology
- 80-233 Gdańsk
- Poland
| | - Piotr Trzonkowski
- Department of Clinical Immunology and Transplantology
- Faculty of Medicine
- Medical University of Gdansk
- 80-211 Gdańsk
- Poland
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113
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Non-grafted Vaginal Depth Augmentation for Transgender Atresia, Our Experience and Survey of Related Procedures. Aesthetic Plast Surg 2015; 39:733-44. [PMID: 26163098 DOI: 10.1007/s00266-015-0523-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Accepted: 06/06/2015] [Indexed: 10/23/2022]
Abstract
INTRODUCTION Neovaginal atresia especially following male-to-female transgender vaginoplasty is a distressing concern. A pelvic space must be re-created. Traditionally, an epithelial or mucosal lining is employed to cover the space. However, in our series of 18 patients, a non-grafted approach has been equally efficacious, as previously described by others. AIM To follow the outcome of male-to-female transsexuals undergoing secondary depth enhancement without use of graft or flap. METHODS Patient selection included two operated on elsewhere, one of whom had a lower abdominal skin graft, and the remainder done here using an inverted penile skin flap supplemented by a scrotal graft extension as needed. The time lag from primary to revision surgery varied from 5 months to 23 years, average 3.7 years. The fascial plane of Denonvilliers was reopened and packed for 7 days to facilitate maintenance of a pelvic space. Patients are requested to perform serial self-dilations with a stent set indefinitely to maintain patency and procure additional depth. Immuno-histochemistry staining was performed to demonstrate estrogen receptor (ER) presence in male genital skin. Estrogen cream may be utilized to facilitate wound healing. Main outcome measures were post-operative depth results and Female Sexual Function Index (FSFI) scores. Several attempts were made to contact all patients for completion of a FSFI. Ten out of 18 responded. RESULTS Following revision of the pelvic space, static depths increased two-fold on average, from 2.4 in. (6.2 cm) to 5.0 in. (12.7 cm). The FSFI domain scores (of desire, arousal, lubrication, orgasm, satisfaction, and pain) were all mid-range or above. Full scale FSFI scores (compilation score) averaged 23.4 (range limits 2-36). Histologic staining showed the presence of ER in genital skin of all genetic males tested regardless of estrogen usage and perceived gender. CONCLUSIONS Given adequate development of the rectal-vesical space and preservation of that space with self-dilation, epithelialization will ensue providing sexual gratification for patient and partner (as per patient). LEVEL OF EVIDENCE III This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
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114
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Quantitative changes in skin composition parameters due to chemotherapy in breast cancer patients: a cohort study. Breast Cancer Res Treat 2015. [DOI: 10.1007/s10549-015-3502-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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115
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Tang J, Li Q, Cheng B, Huang C, Chen K. Effects of diethylstilbestrol on the proliferation and tyrosinase activity of cultured human melanocytes. Biomed Rep 2015; 3:499-502. [PMID: 26171155 DOI: 10.3892/br.2015.472] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Accepted: 04/24/2015] [Indexed: 11/06/2022] Open
Abstract
The aim of the present study was to observe the effects of different exogenous estrogen diethylstilbestrol (DES) concentrations on the human melanocyte proliferation and tyrosinase activity. Skin specimens were obtained following blepharoplasty, and the melanocytes were primary cultured and passaged to the third generation. The melanocytes were seeded in 96-well plates, each well had 5×103 cells. The medium was changed after 24 h, and contained 10-4-10-8 M DES. After the melanocytes were incubated, the proliferation and tyrosinase activity were detected by the MTT assay and L-DOPA reaction. DES (10-8-10-6 M) enhanced the proliferation of cultured melanocytes. The intensity was positively correlated with the concentration of drug. DES, >10-5 M, inhibited the melanocytes proliferation or even produced the toxicity effect. Following the addition of 10-6 M DES to the medium, the tyrosinase activity of melanocytes was significantly increased, with P<0.05. In conclusion, a certain concentration of DES promoted the proliferation of melanocytes, enhanced the activity of tyrosinase and promoted pigment synthesis of melanocytes, with the optimal concentration of 10-6 M.
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Affiliation(s)
- Jianbing Tang
- Department of Plastic Surgery, The Key Laboratory of Trauma Treatment and Tissue Repair of Tropical Area, People's Liberation Army, HuaBo BioPharmaceutical Institute of Guangzhou, General Hospital of Guangzhou Military Command, Guangzhou, Guangdong 510010, P.R. China
| | - Qin Li
- Department of Plastic Surgery, The Key Laboratory of Trauma Treatment and Tissue Repair of Tropical Area, People's Liberation Army, HuaBo BioPharmaceutical Institute of Guangzhou, General Hospital of Guangzhou Military Command, Guangzhou, Guangdong 510010, P.R. China
| | - Biao Cheng
- Department of Plastic Surgery, The Key Laboratory of Trauma Treatment and Tissue Repair of Tropical Area, People's Liberation Army, HuaBo BioPharmaceutical Institute of Guangzhou, General Hospital of Guangzhou Military Command, Guangzhou, Guangdong 510010, P.R. China
| | - Chong Huang
- Department of Plastic Surgery, The Key Laboratory of Trauma Treatment and Tissue Repair of Tropical Area, People's Liberation Army, HuaBo BioPharmaceutical Institute of Guangzhou, General Hospital of Guangzhou Military Command, Guangzhou, Guangdong 510010, P.R. China
| | - Kui Chen
- Department of Plastic Surgery, The Key Laboratory of Trauma Treatment and Tissue Repair of Tropical Area, People's Liberation Army, HuaBo BioPharmaceutical Institute of Guangzhou, General Hospital of Guangzhou Military Command, Guangzhou, Guangdong 510010, P.R. China
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116
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Characterization of Skin Aging-Associated Secreted Proteins (SAASP) Produced by Dermal Fibroblasts Isolated from Intrinsically Aged Human Skin. J Invest Dermatol 2015; 135:1954-1968. [PMID: 25815425 DOI: 10.1038/jid.2015.120] [Citation(s) in RCA: 129] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Revised: 03/12/2015] [Accepted: 03/18/2015] [Indexed: 12/16/2022]
Abstract
Most molecular hallmarks of cellular senescence have been identified in studies of cells aged in vitro by driving them into replicative or stress-induced senescence. Comparatively, less is known about the characteristic features of cells that have aged in vivo. Here we provide a systematic molecular analysis of normal human dermal fibroblasts (NHDFs) that were isolated from intrinsically aged human skin of young versus middle aged versus old donors. Intrinsically aged NHDFs in culture exhibited more frequently nuclear foci positive for p53 binding protein 1 and promyelocytic leukemia protein reminiscent of 'DNA segments with chromatin alterations reinforcing senescence (DNA-SCARS)'. Formation of such foci was neither accompanied by increased DNA double strand breaks, nor decreased cell viability, nor telomere shortening. However, it was associated with the development of a secretory phenotype, indicating incipient cell senescence. By quantitative analysis of the entire secretome present in conditioned cell culture supernatant, combined with a multiplex cytokine determination, we identified 998 proteins secreted by intrinsically aged NHDFs in culture. Seventy of these proteins exhibited an age-dependent secretion pattern and were accordingly denoted 'skin aging-associated secreted proteins (SAASP)'. Systematic comparison of SAASP with the classical senescence-associated secretory phenotype (SASP) revealed that matrix degradation as well as proinflammatory processes are common aspects of both conditions. However, secretion of 27 proteins involved in the biological processes of 'metabolism' and 'adherens junction interactions' was unique for NHDFs isolated from intrinsically aged skin. In conclusion, fibroblasts isolated from intrinsically aged skin exhibit some, but not all, molecular hallmarks of cellular senescence. Most importantly, they secrete a unique pattern of proteins that is distinct from the canonical SASP and might reflect specific processes of skin aging.
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117
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Carnesecchi J, Malbouyres M, de Mets R, Balland M, Beauchef G, Vié K, Chamot C, Lionnet C, Ruggiero F, Vanacker JM. Estrogens induce rapid cytoskeleton re-organization in human dermal fibroblasts via the non-classical receptor GPR30. PLoS One 2015; 10:e0120672. [PMID: 25781607 PMCID: PMC4363467 DOI: 10.1371/journal.pone.0120672] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Accepted: 02/05/2015] [Indexed: 12/31/2022] Open
Abstract
The post-menopausal decrease in estrogen circulating levels results in rapid skin deterioration pointing out to a protective effect exerted by these hormones. The identity of the skin cell type responding to estrogens is unclear as are the cellular and molecular processes they elicit. Here, we reported that lack of estrogens induces rapid re-organization of the human dermal fibroblast cytoskeleton resulting in striking cell shape change. This morphological change was accompanied by a spatial re-organization of focal adhesion and a substantial reduction of their number as evidenced by vinculin and actin co-staining. Cell morphology and cytoskeleton organization was fully restored upon 17β-estradiol (E2) addition. Treatment with specific ER antagonists and cycloheximide respectively showed that the E2 acts independently of the classical Estrogen Receptors and that cell shape change is mediated by non-genomic mechanisms. E2 treatment resulted in a rapid and transient activation of ERK1/2 but not Src or PI3K. We show that human fibroblasts express the non-classical E2 receptor GPR30 and that its agonist G-1 phenocopies the effect of E2. Inhibiting GPR30 through treatment with the G-15 antagonist or specific shRNA impaired E2 effects. Altogether, our data reveal a novel mechanism by which estrogens act on skin fibroblast by regulating cell shape through the non-classical G protein-coupled receptor GPR30 and ERK1/2 activation.
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Affiliation(s)
- Julie Carnesecchi
- Institut de Génomique Fonctionnelle de Lyon, Université de Lyon, Université Lyon 1, CNRS UMR5242, Ecole Normale Supérieure de Lyon, Lyon, France
| | - Marilyne Malbouyres
- Institut de Génomique Fonctionnelle de Lyon, Université de Lyon, Université Lyon 1, CNRS UMR5242, Ecole Normale Supérieure de Lyon, Lyon, France
| | - Richard de Mets
- Laboratoire interdisciplinaire de Physique UMR CNRS 5588, Université Joseph Fourier, Grenoble, France
| | - Martial Balland
- Laboratoire interdisciplinaire de Physique UMR CNRS 5588, Université Joseph Fourier, Grenoble, France
| | | | | | | | | | - Florence Ruggiero
- Institut de Génomique Fonctionnelle de Lyon, Université de Lyon, Université Lyon 1, CNRS UMR5242, Ecole Normale Supérieure de Lyon, Lyon, France
| | - Jean-Marc Vanacker
- Institut de Génomique Fonctionnelle de Lyon, Université de Lyon, Université Lyon 1, CNRS UMR5242, Ecole Normale Supérieure de Lyon, Lyon, France
- * E-mail:
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118
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Pomari E, Valle LD, Pertile P, Colombo L, Thornton MJ. Intracrine sex steroid synthesis and signaling in human epidermal keratinocytes and dermal fibroblasts. FASEB J 2014; 29:508-24. [DOI: 10.1096/fj.14-251363] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Elena Pomari
- Centre for Skin SciencesSchool of Life Sciences University of BradfordBradfordUnited Kingdom
- Comparative Endocrinology LaboratoryDepartment of BiologyUniversity of PadovaPaduaItaly
| | - Luisa Dalla Valle
- Comparative Endocrinology LaboratoryDepartment of BiologyUniversity of PadovaPaduaItaly
| | | | - Lorenzo Colombo
- Comparative Endocrinology LaboratoryDepartment of BiologyUniversity of PadovaPaduaItaly
| | - M. Julie Thornton
- Centre for Skin SciencesSchool of Life Sciences University of BradfordBradfordUnited Kingdom
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Sirotkin AV, Harrath AH. Phytoestrogens and their effects. Eur J Pharmacol 2014; 741:230-6. [DOI: 10.1016/j.ejphar.2014.07.057] [Citation(s) in RCA: 159] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2014] [Revised: 07/23/2014] [Accepted: 07/27/2014] [Indexed: 12/12/2022]
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Wall EH, Hewitt SC, Case LK, Lin CY, Korach KS, Teuscher C. The role of genetics in estrogen responses: a critical piece of an intricate puzzle. FASEB J 2014; 28:5042-54. [PMID: 25212221 DOI: 10.1096/fj.14-260307] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The estrogens are female sex hormones that are involved in a variety of physiological processes, including reproductive development and function, wound healing, and bone growth. They are mainly known for their roles in reproductive tissues--specifically, 17β-estradiol (E2), the primary estrogen, which is secreted by the ovaries and induces cellular proliferation and growth of the uterus and mammary glands. In addition to the role of estrogens in promoting tissue growth and development during normal physiological states, they have a well-established role in determining susceptibility to disease, particularly cancer, in reproductive tissues. The responsiveness of various tissues to estrogen is genetically controlled, with marked quantitative variation observed across multiple species, including humans. This variation presents both researchers and clinicians with a veritable physiological puzzle, the pieces of which--many of them unknown--are complex and difficult to fit together. Although genetics is known to play a major role in determining sensitivity to estrogens, there are other factors, including parent of origin and the maternal environment, that are intimately linked to heritable phenotypes but do not represent genotype, per se. The objectives of this review article were to summarize the current knowledge of the role of genotype, and uterine and neonatal environments, in phenotypic variation in the response to estrogens; to discuss recent findings and the potential mechanisms involved; and to highlight exciting research opportunities for the future.
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Affiliation(s)
- Emma H Wall
- Department of Medicine and Pathology, University of Vermont, Burlington Vermont, USA
| | - Sylvia C Hewitt
- Receptor Biology, National Institute of Environmental Health Science, U.S. National Institutes of Health, Research Triangle Park, North Carolina, USA; and
| | - Laure K Case
- Department of Medicine and Pathology, University of Vermont, Burlington Vermont, USA
| | - Chin-Yo Lin
- Center for Nuclear Receptors and Cell Signaling, University of Houston, Houston, Texas, USA
| | - Kenneth S Korach
- Receptor Biology, National Institute of Environmental Health Science, U.S. National Institutes of Health, Research Triangle Park, North Carolina, USA; and
| | - Cory Teuscher
- Department of Medicine and Pathology, University of Vermont, Burlington Vermont, USA;
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Liu YR, Li WG, Chen LF, Xiao BK, Yang JY, Yang L, Zhang CG, Huang RQ, Dong JX. ABTS+ scavenging potency of selected flavonols from Hypericum perforatum L. by HPLC-ESI/MS QQQ: Reaction observation, adduct characterization and scavenging activity determination. Food Res Int 2014. [DOI: 10.1016/j.foodres.2014.01.051] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Gragnani A, Cornick SM, Chominski V, Ribeiro de Noronha SM, Alves Corrêa de Noronha SA, Ferreira LM. Review of Major Theories of Skin Aging. ACTA ACUST UNITED AC 2014. [DOI: 10.4236/aar.2014.34036] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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