The Sox2: GFP+/- knock-in mouse model does not faithfully recapitulate Sox2 expression in skin.

Abstract:

:Hair follicle heterogeneity may be regulated by distinct dermal papillae (DP) that represent mesenchymal lineages, which can be defined by Sox2 expression. However, it was recently shown that GFP expression in the Sox2: GFP+/- mouse model occurs in the DPs of all hair follicle types, challenging the idea that hair follicle heterogeneity can be defined by DP heterogeneity. Here, we investigated whether the knock-in mouse model faithfully expresses GFP when compared to endogenous Sox2 expression. The results reveal that GFP expression is aberrant in both the infundibulum of hair follicles and in the DPs. Consequently, we provide an explanation for the aberrant expression of the knock-in gene based on the original cloning strategy for the mouse model in the context of a newly identified regulatory element associated within the coding region of Sox2.

journal_name

Exp Dermatol

journal_title

Experimental dermatology

authors

Salz L,Driskell RR

doi

10.1111/exd.13396

subject

Has Abstract

pub_date

2017-11-01 00:00:00

pages

1146-1148

issue

11

eissn

0906-6705

issn

1600-0625

journal_volume

26

pub_type

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