期刊
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
卷 21, 期 17, 页码 -出版社
MDPI
DOI: 10.3390/ijms21176129
关键词
melanogenesis; tyrosinase; tyrosinase related protein (TYRP); vesicular transport; melanosome; eumelanin; pheomelanin; pigment-type switching; hypomelanosis; melanoma
资金
- Ministry of Health, Labor andWelfare of Japan [H21-Nano-006]
- JSPS KAKENHI from the Japan Society for the Promotion of Science [JP20790808, JP23770233]
Melanogenesis is the biological and biochemical process of melanin and melanosome biosynthesis. Melanin is formed by enzymic reactions of tyrosinase family proteins that convert tyrosine to form brown-black eumelanin and yellow-red pheomelanin within melanosomal compartments in melanocytes, following the cascades of events interacting with a series of autocrine and paracrine signals. Fully melanized melanosomes are delivered to keratinocytes of the skin and hair. The symbiotic relation of a melanocyte and an associated pool of keratinocytes is called epidermal melanin unit (EMU). Microphthalmia-associated transcription factor (MITF) plays a vital role in melanocyte development and differentiation. MITF regulates expression of numerous pigmentation genes for promoting melanocyte differentiation, as well as fundamental genes for maintaining cell homeostasis. Diseases involving alterations of EMU show various forms of pigmentation phenotypes. This review introduces four major topics of melanogenesis cascade that include (1) melanocyte development and differentiation, (2) melanogenesis and intracellular trafficking for melanosome biosynthesis, (3) melanin pigmentation and pigment-type switching, and (4) development of a novel therapeutic approach for malignant melanoma by elucidation of melanogenesis cascade.
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