Current Understanding of the Role of Senescent Melanocytes in Skin Ageing

Melanocytes reside within the basal epidermis of human skin, and function to protect the skin from ultraviolet light through the production of melanin. Prolonged exposure of the skin to UV light can induce irreparable DNA damage and drive cells into senescence, a sustained cell cycle arrest that pre...

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Main Authors: Bethany K. Hughes, Cleo L. Bishop
Format: Article
Language:English
Published: MDPI AG 2022-12-01
Series:Biomedicines
Subjects:
Online Access:https://www.mdpi.com/2227-9059/10/12/3111
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author Bethany K. Hughes
Cleo L. Bishop
author_facet Bethany K. Hughes
Cleo L. Bishop
author_sort Bethany K. Hughes
collection DOAJ
description Melanocytes reside within the basal epidermis of human skin, and function to protect the skin from ultraviolet light through the production of melanin. Prolonged exposure of the skin to UV light can induce irreparable DNA damage and drive cells into senescence, a sustained cell cycle arrest that prevents the propagation of this damage. Senescent cells can also be detrimental and contribute to skin ageing phenotypes through their senescence-associated secretory phenotype. Senescent cells can act in both an autocrine and paracrine manner to produce widespread tissue inflammation and skin ageing. Recently, melanocytes have been identified as the main senescent cell population within the epidermis and have been linked to a variety of skin ageing phenotypes, such as epidermal thinning and the presence of wrinkles. However, the literature surrounding melanocyte senescence is limited and tends to focus on the role of senescence in the prevention of melanoma. Therefore, this review aims to explore the current understanding of the contribution of senescent melanocytes to human skin ageing.
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spelling doaj.art-39fbf576240a48b4b19ab557eaf3e6062023-11-24T13:27:01ZengMDPI AGBiomedicines2227-90592022-12-011012311110.3390/biomedicines10123111Current Understanding of the Role of Senescent Melanocytes in Skin AgeingBethany K. Hughes0Cleo L. Bishop1Barts and the London Faculty of Medicine and Dentistry, Blizard Institute, Queen Mary University of London, 4, Newark Street, London E1 2AT, UKBarts and the London Faculty of Medicine and Dentistry, Blizard Institute, Queen Mary University of London, 4, Newark Street, London E1 2AT, UKMelanocytes reside within the basal epidermis of human skin, and function to protect the skin from ultraviolet light through the production of melanin. Prolonged exposure of the skin to UV light can induce irreparable DNA damage and drive cells into senescence, a sustained cell cycle arrest that prevents the propagation of this damage. Senescent cells can also be detrimental and contribute to skin ageing phenotypes through their senescence-associated secretory phenotype. Senescent cells can act in both an autocrine and paracrine manner to produce widespread tissue inflammation and skin ageing. Recently, melanocytes have been identified as the main senescent cell population within the epidermis and have been linked to a variety of skin ageing phenotypes, such as epidermal thinning and the presence of wrinkles. However, the literature surrounding melanocyte senescence is limited and tends to focus on the role of senescence in the prevention of melanoma. Therefore, this review aims to explore the current understanding of the contribution of senescent melanocytes to human skin ageing.https://www.mdpi.com/2227-9059/10/12/3111melanocytesenescenceskinageingUV
spellingShingle Bethany K. Hughes
Cleo L. Bishop
Current Understanding of the Role of Senescent Melanocytes in Skin Ageing
Biomedicines
melanocyte
senescence
skin
ageing
UV
title Current Understanding of the Role of Senescent Melanocytes in Skin Ageing
title_full Current Understanding of the Role of Senescent Melanocytes in Skin Ageing
title_fullStr Current Understanding of the Role of Senescent Melanocytes in Skin Ageing
title_full_unstemmed Current Understanding of the Role of Senescent Melanocytes in Skin Ageing
title_short Current Understanding of the Role of Senescent Melanocytes in Skin Ageing
title_sort current understanding of the role of senescent melanocytes in skin ageing
topic melanocyte
senescence
skin
ageing
UV
url https://www.mdpi.com/2227-9059/10/12/3111
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