Diversified Stimuli-Induced Inflammatory Pathways Cause Skin Pigmentation

The production of melanin pigments by melanocytes and their quantity, quality, and distribution play a decisive role in determining human skin, eye, and hair color, and protect the skin from adverse effects of ultraviolet radiation (UVR) and oxidative stress from various environmental pollutants. Me...

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Main Authors: Md Razib Hossain, Tuba M. Ansary, Mayumi Komine, Mamitaro Ohtsuki
Format: Article
Language:English
Published: MDPI AG 2021-04-01
Series:International Journal of Molecular Sciences
Subjects:
Online Access:https://www.mdpi.com/1422-0067/22/8/3970
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author Md Razib Hossain
Tuba M. Ansary
Mayumi Komine
Mamitaro Ohtsuki
author_facet Md Razib Hossain
Tuba M. Ansary
Mayumi Komine
Mamitaro Ohtsuki
author_sort Md Razib Hossain
collection DOAJ
description The production of melanin pigments by melanocytes and their quantity, quality, and distribution play a decisive role in determining human skin, eye, and hair color, and protect the skin from adverse effects of ultraviolet radiation (UVR) and oxidative stress from various environmental pollutants. Melanocytes reside in the basal layer of the interfollicular epidermis and are compensated by melanocyte stem cells in the follicular bulge area. Various stimuli such as eczema, microbial infection, ultraviolet light exposure, mechanical injury, and aging provoke skin inflammation. These acute or chronic inflammatory responses cause inflammatory cytokine production from epidermal keratinocytes as well as dermal fibroblasts and other cells, which in turn stimulate melanocytes, often resulting in skin pigmentation. It is confirmed by some recent studies that several interleukins (ILs) and other inflammatory mediators modulate the proliferation and differentiation of human epidermal melanocytes and also promote or inhibit expression of melanogenesis-related gene expression directly or indirectly, thereby participating in regulation of skin pigmentation. Understanding of mechanisms of skin pigmentation due to inflammation helps to elucidate the relationship between inflammation and skin pigmentation regulation and can guide development of new therapeutic pathways for treating pigmented dermatosis. This review covers the mechanistic aspects of skin pigmentation caused by inflammation.
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spelling doaj.art-588c590f60394fec87ca3e598291e62f2023-11-21T15:11:57ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672021-04-01228397010.3390/ijms22083970Diversified Stimuli-Induced Inflammatory Pathways Cause Skin PigmentationMd Razib Hossain0Tuba M. Ansary1Mayumi Komine2Mamitaro Ohtsuki3Department of Dermatology, Faculty of Medicine, Jichi Medical University, Tochigi 329-0498, JapanDepartment of Dermatology, Faculty of Medicine, Jichi Medical University, Tochigi 329-0498, JapanDepartment of Dermatology, Faculty of Medicine, Jichi Medical University, Tochigi 329-0498, JapanDepartment of Dermatology, Faculty of Medicine, Jichi Medical University, Tochigi 329-0498, JapanThe production of melanin pigments by melanocytes and their quantity, quality, and distribution play a decisive role in determining human skin, eye, and hair color, and protect the skin from adverse effects of ultraviolet radiation (UVR) and oxidative stress from various environmental pollutants. Melanocytes reside in the basal layer of the interfollicular epidermis and are compensated by melanocyte stem cells in the follicular bulge area. Various stimuli such as eczema, microbial infection, ultraviolet light exposure, mechanical injury, and aging provoke skin inflammation. These acute or chronic inflammatory responses cause inflammatory cytokine production from epidermal keratinocytes as well as dermal fibroblasts and other cells, which in turn stimulate melanocytes, often resulting in skin pigmentation. It is confirmed by some recent studies that several interleukins (ILs) and other inflammatory mediators modulate the proliferation and differentiation of human epidermal melanocytes and also promote or inhibit expression of melanogenesis-related gene expression directly or indirectly, thereby participating in regulation of skin pigmentation. Understanding of mechanisms of skin pigmentation due to inflammation helps to elucidate the relationship between inflammation and skin pigmentation regulation and can guide development of new therapeutic pathways for treating pigmented dermatosis. This review covers the mechanistic aspects of skin pigmentation caused by inflammation.https://www.mdpi.com/1422-0067/22/8/3970melanosomemelanocytesmelanogenesisskin pigmentationinflammationinflammatory cytokine
spellingShingle Md Razib Hossain
Tuba M. Ansary
Mayumi Komine
Mamitaro Ohtsuki
Diversified Stimuli-Induced Inflammatory Pathways Cause Skin Pigmentation
International Journal of Molecular Sciences
melanosome
melanocytes
melanogenesis
skin pigmentation
inflammation
inflammatory cytokine
title Diversified Stimuli-Induced Inflammatory Pathways Cause Skin Pigmentation
title_full Diversified Stimuli-Induced Inflammatory Pathways Cause Skin Pigmentation
title_fullStr Diversified Stimuli-Induced Inflammatory Pathways Cause Skin Pigmentation
title_full_unstemmed Diversified Stimuli-Induced Inflammatory Pathways Cause Skin Pigmentation
title_short Diversified Stimuli-Induced Inflammatory Pathways Cause Skin Pigmentation
title_sort diversified stimuli induced inflammatory pathways cause skin pigmentation
topic melanosome
melanocytes
melanogenesis
skin pigmentation
inflammation
inflammatory cytokine
url https://www.mdpi.com/1422-0067/22/8/3970
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AT mayumikomine diversifiedstimuliinducedinflammatorypathwayscauseskinpigmentation
AT mamitaroohtsuki diversifiedstimuliinducedinflammatorypathwayscauseskinpigmentation