English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The Src family kinases (SFKs) are believed to play critical roles in malignant transformation, as well as in growth, invasion and dissemination of neoplastic tissue. Inhibition of SFK-mediated signal transduction and activation of downstream targets inhibits tumor progression. To determine whether constitutive activity of SFK per se is sufficient to induce tumorigenesis in vivo, we have generated a mouse model with a keratinocyte-restricted deletion of the SFK-negative regulator csk (Csk-K5 mice). Even though expression levels of SFKs were lower in C-terminal Src kinase (Csk)-null keratinocytes, activity levels were higher than in control keratinocytes. At the age of 3 months, all Csk-K5 mice displayed signs of chronic inflammation in dermis and epidermal hyperplasia. About 19% of Csk-K5 mice (7 out of 36) developed papillomatous lesions. However, these lesions did not show any signs of neoplastic transformation over the next 8 months. Epidermal hyperplasia and hyperkeratosis in Csk-K5 mice were associated with an increased number of stem cells in the interfollicular epidermis, an increased proliferation of basal keratinocytes and a delayed terminal differentiation of the suprabasal keratinocytes. Our results clearly demonstrate that even though SFK-mediated signaling promotes tumor progression, elevated activity of SFKs in vivo alone is not sufficient to induce neoplastic transformation.

Epidermal hyperplasia and papillomatosis in mice with a keratinocyte-restricted deletion of csk