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TRP‑2 mediates coat color pigmentation in sheep skin
Linli Xue1, Yanan Li1, Bingling Zhao1
1College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Jinzhong, Shanxi 030801, P.R. China.
Molecular Medicine Reports
|February 14, 2018
Summary
Tyrosinase-related protein 2 (TRP-2) influences sheep coat color by regulating melanin production. Higher TRP-2 expression correlates with darker coat colors, offering insights into pigmentation disorders.
Area of Science:
- Animal genetics
- Biochemistry
- Dermatology
Background:
- Tyrosinase-related protein 2 (TRP-2) is crucial for melanin biosynthesis.
- Understanding TRP-2's role in coat color variation is important for animal genetics.
Purpose of the Study:
- To investigate TRP-2 expression in sheep with varying coat colors.
- To determine the effect of TRP-2 on melanin production and melanogenesis.
- To explore TRP-2's potential in treating pigmentation disorders.
Main Methods:
- Skin transcriptome profiling
- Immunohistochemistry
- Western blotting
- Reverse transcription-quantitative polymerase chain reaction (RT-qPCR)
- In vitro TRP-2 overexpression in melanocytes
Main Results:
- TRP-2 expression levels varied significantly among sheep with different coat colors.
- In piebald sheep, TRP-2 levels were higher in dark-colored areas compared to light-colored areas.
- TRP-2 overexpression in vitro increased melanogenesis and related transcription factor expression.
Conclusions:
- TRP-2 plays a significant role in determining sheep coat color through its regulation of melanin production.
- Differential TRP-2 expression is a key factor in coat pigmentation.
- Findings may inform therapeutic strategies for skin pigmentation disorders.
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