%0 Journal Article
%T Prognostic value of carbonic anhydrase IX and HIF-1¦Á in renal cell carcinoma
%A Bilal G¨¹nayd£¿n
%A As£¿f Y£¿ld£¿r£¿m
%A Ebru Zemheri
%A £¿eyma £¿zkanl£¿
%J Turkish Journal of Urology
%D 2012
%I Aves Yayincilik
%X Objective: In this study, we evaluated the prognostic value of carbonic anhydrase IX (CA9) and HIF-1¦Á and their relations with anatomic, histopathologic and clinic prognostic factors.Materials and Methods: Immunohistochemical analysis was performed on paraffin-embedded specimens from 39 patients treated with a nephrectomy for renal cell carcinoma. The immunoreactivity levels of CA9 and HIF-1¦Á were classified into four groups: 0%, 1-25%, 26-50%, >50% for CA9; and ¡Ü1-10%, 11-50%, 51-80%, >80% for HIF-1¦Á. The CA9 and HIF-1¦Á stains were compared with the patient¡¯s age, sex, tumor volume, recurrence status, T stage and Fuhrman grade. Results: The age distribution of all patients with clear cell renal cell carcinoma (RCC) was as follows: 23 (59%) were older than 50, and 16 (41%) were younger. Twenty-eight patients (71.8%) were male, and 11 (28.2%) were female. Among these patients, 34 (87.2%) survived, and 5 (12.8%) died because of RCC. Seven (17.9%) patients had a recurrence after undergoing a nephrectomy. Twenty-four (61.5%) patients were classified as stage T1 and 15 (38.2%) as stage T2. Thirty-three (84.6%) patients were classified as Fuhrman grade 2 and six (15.4%) patients as Fuhrman grade 3. Although there were different degrees of staining, immunohistochemical staining was positive in all pathological samples for either CA9 or HIF-1¦Á (7 1-25%, 15 26-50%, 17 >%50 for CA9; 11 <10%, 10 10-50%, 14 50-80%, 4 >80% for HIF-1¦Á). Among the CA9 immunoreactive-positive patients, the number of male patients was statistically higher in the 1-25% group than the 26-50% and >50% groups (p=0.019). Among HIF-1¦Á immunoreactive-positive patients, the ¡Ü%10 group had a statistically lower number of tumors sized >4 cm than the other groups (p=0.01). Conclusions: We noted that there was no relationship between CA9 and HIF-1¦Á expression with other prognostic clinicopathologic features.
%K Carbonic anhydrase IX
%K clear cell cancer
%K hypoxia inducible factor-1¦Á
%K kidney
%U http://www.turkurolojidergisi.com/yazilar.asp?yaziid=2655&sayiid=