The cytoplasmic tyrosine kinase PTK6 (BRK) shows elevated expression in approximately two-thirds of primary breast tumours, and is implicated in EGF receptor-dependent signalling and epithelial tumorigenesis. Using immunohistochemistry, we performed a retrospective study on 426 archival breast cancer samples from patients with long-term follow-up and compared the protein expression levels of PTK6, the HER receptors, Sam68 (a substrate of PTK6), and signalling proteins including MAP kinase (MAPK), phosphorylated MAPK (P-MAPK), and PTEN. We show that PTK6 expression is of significant prognostic value in the outcome of breast carcinomas. In multivariate analysis, the disease-free survival of patients of >or=240 months was directly associated with the protein expression level of PTK6 (P
Impact Factor
Scopus SNIP
Web of Science Times Cited
Scopus Cited By
Altmetric
4.635
1.640
32
39
Tags
Annotations
Special Publikation
Hide on homepage
Publication typeArticle: Journal article
Document typeScientific Article
Thesis type
Editors
KeywordsPTK6 (BRK); breast cancer; prognosis; MAPK; Sam68; PTEN