Published in:
01-09-2016 | Original Paper
iRhom2
Uncv
mutation blocks bulge stem cells assuming the fate of hair follicle
Authors:
Leilei Yang, Wenlong Li, Bing Liu, Shaoxia Wang, Lin Zeng, Cuiping Zhang, Yang Li
Published in:
Archives of Dermatological Research
|
Issue 7/2016
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Abstract
iRhom2 is necessary for maturation of TNFα-converting enzyme, which is required for the release of tumor necrosis factor. In the previous study, we found that the iRhom2
Uncv
mutation in N-terminal cytoplasmic domain-encoding region (iRhom2
Uncv
) leads to aberrant hair shaft and inner root sheath differentiation, thus results in a hairless phenotype in homozygous iRhom2
Uncv/Uncv
BALB/c mice. In this study, we found iRhom2 mutation decreased hair matrix proliferation, however, iRhom2
Uncv/Uncv
mice displayed hyperproliferation and hyperkeratosis in the interfollicular epidermis along with hypertrophy in the sebaceous glands. The number of bulge SCs was not altered and the hair follicle cycle is normal in iRhom2
Uncv/Uncv
mice. The decreased proliferation in hair matrix but increased proliferation in epidermis and sebaceous glands in iRhom2
Uncv/Uncv
mice may implying that iRhom2
Uncv
mutation blocks bugle stem cells assuming the fate of hair follicle. This study identifies iRhom2 as a novel regulator for determination of keratinocyte lineages.