We use cookies to enhance the usability of our website. If you continue, we'll assume that you are happy to receive all cookies. More information. Don't show this again.
A majority of colorectal, breast, testicular and thyroid cancers as well as several ovarian cancers and melanomas displayed moderate cytoplasmic staining. Remaining cancer tissues were in general weakly stained or negative.
Moderate cytoplasmic positivity was observed in most malignancies.
Hepatocellular carcinomas were strongly stained. Several renal cancers, malignant lymphomas, melanomas and gliomas were weakly stained.
Colorectal cancer and a few cases of breast, renal, pancreatic and liver cancers showed moderate cytoplasmic positivity. Remaining malignancies were weakly stained or negative.
Prostate cancers along with several gliomas, gastric and pancreatic cancers showed strong cytoplasmic positivity. Several colorectal, breast, urothelial, gastric, pancreatic and liver cancers were moderately stained. Remaining cancer tissues were weakly stained or negative.
GENE INFORMATION
Gene name
FGFR4 (HGNC Symbol)
Synonyms
CD334, JTK2
Description
Fibroblast growth factor receptor 4 (HGNC Symbol)
Entrez gene summary
The protein encoded by this gene is a member of the fibroblast growth factor receptor family, where amino acid sequence is highly conserved between members and throughout evolution. FGFR family members differ from one another in their ligand affinities and tissue distribution. A full-length representative protein would consist of an extracellular region, composed of three immunoglobulin-like domains, a single hydrophobic membrane-spanning segment and a cytoplasmic tyrosine kinase domain. The extracellular portion of the protein interacts with fibroblast growth factors, setting in motion a cascade of downstream signals, ultimately influencing mitogenesis and differentiation. The genomic organization of this gene, compared to members 1-3, encompasses 18 exons rather than 19 or 20. Although alternative splicing has been observed, there is no evidence that the C-terminal half of the IgIII domain of this protein varies between three alternate forms, as indicated for members 1-3. This particular family member preferentially binds acidic fibroblast growth factor and, although its specific function is unknown, it is overexpressed in gynecological tumor samples, suggesting a role in breast and ovarian tumorigenesis. [provided by RefSeq, Jul 2008]