Cutaneous pigmentation modulates skin sensitivity via tyrosinase-dependent dopaminergic signalling.
Cutaneous pigmentation modulates skin sensitivity via tyrosinase-dependent dopaminergic signalling.
复制标题
皮肤色素沉着通过酪氨酸酶依赖性多巴胺能信号调节皮肤敏感性。
DOI:
10.1038/s41598-017-09682-4
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发表时间:
2017-08-23
影响因子:
4.6
通讯作者:
Schmidt BL
中科院分区:
文献类型:
--
作者:
Ono K;Viet CT;Ye Y;Dang D;Hitomi S;Toyono T;Inenaga K;Dolan JC;Schmidt BL
We propose a new mechanism of sensory modulation through cutaneous dopaminergic signalling. We hypothesize that dopaminergic signalling contributes to differential cutaneous sensitivity in darker versus lighter pigmented humans and mouse strains. We show that thermal and mechanical cutaneous sensitivity is pigmentation dependent. Meta-analyses in humans and mice, along with our own mouse behavioural studies, reveal higher thermal sensitivity in pigmented skin relative to less-pigmented or albino skin. We show that dopamine from melanocytes activates the D1-like dopamine receptor on primary sensory neurons. Dopaminergic activation increases expression of the heat-sensitive TRPV1 ion channel and reduces expression of the mechanically-sensitive Piezo2 channel; thermal threshold is lower and mechanical threshold is higher in pigmented skin.
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影响因子:
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Diatchenko, L;Slade, GD;Maixner, W
通讯作者:
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