c-kit (CD117) expression in human tumors and its prognostic value: an immunohistochemical analysis
| Autor: | Clemens Unger, Barbara Wehmeyer, Manuela Kleinschmidt, Marc Azemar, Hans-Eckart Schaefer, Michael Medinger, Klaus Mross, Renate Weber |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Adult
Male Cancer Research Pathology medicine.medical_specialty Cell Value (computer science) Kaplan-Meier Estimate Receptor tyrosine kinase Pathology and Forensic Medicine C kit cd117 Young Adult Neoplasms medicine Biomarkers Tumor Humans Aged Aged 80 and over biology Kinase business.industry Imatinib General Medicine Middle Aged Prognosis Immunohistochemistry Proto-Oncogene Proteins c-kit medicine.anatomical_structure Oncology biology.protein Female business Tyrosine kinase medicine.drug |
| Zdroj: | Pathology oncology research : POR. 16(3) |
| ISSN: | 1532-2807 |
| Popis: | c-kit functions as a tyrosine kinase receptor and represents a target for small molecule kinase inhibitors. The expression pattern for c-kit was studied in different human tumor types to their correlation with prognosis. Paraffin-embedded tumor tissues from 282 patients were analyzed immunohistochemically for c-kit expression. Survival and follow-up data were available from 192/282 (68%) patients. c-kit immunopositivity was found in 62/282 (22%) cases. c-kit expression was found in 14/83 (17%) colorectal cancers, in 13/62 (21%) breast cancers, in 7/20 sarcomas (35%), in 5/14 (36%) renal cell carcinomas, in 2/12 ovarian cancers (17%) and in 2/12 (17%) hepatocellular carcinomas. We found no significant correlation between c-kit expression and prognosis although a trend to a worse prognosis in patients with c-kit positive tumors could be observed. Expression of c-kit was found in tumor samples with varying intensities and infrequently. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink