Hyperplasia, hyperkeratosis and benign tumor production in transgenic mice by a targeted v-fos oncogene suggest a role for fos in epidermal differentiation and neoplasia.

Abstract:

:A vector, derived from the human K1 keratin gene, has been employed to target v-fos expression exclusively in the epidermis of transgenic mice. Adult transgenic mice expressors (3-4 months) displayed hyperplasia and hyperkeratosis, initially in wounded (tagged) ears, which later became bilateral. This phenotype appeared at other epidermal sites, most notably in the axilla and inguinal areas. This indicates that a second promoting event, such as wounding or friction, is required to elicit these pathological changes. Highly keratotic benign ear lesions and benign squamous papillomas appeared after long latency at sites of phenotypic epidermis. These data suggest that v-fos may be interfering with c-fos function in normal keratinocyte differentiation, but by itself is insufficient to elicit overt benign lesions.

journal_name

Oncogene

journal_title

Oncogene

authors

Greenhalgh DA,Rothnagel JA,Wang XJ,Quintanilla MI,Orengo CC,Gagne TA,Bundman DS,Longley MA,Fisher C,Roop DR

subject

Has Abstract

pub_date

1993-08-01 00:00:00

pages

2145-57

issue

8

eissn

0950-9232

issn

1476-5594

journal_volume

8

pub_type

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