RT Journal Article
SR Electronic
T1 IL-6, IL-10 and HSP-90 Expression in Tissue Microarrays from Human Prostate Cancer Assessed by Computer-assisted Image Analysis
JF Anticancer Research
JO Anticancer Res
FD International Institute of Anticancer Research
SP 3409
OP 3416
VO 26
IS 5A
A1 CARDILLO, MARIA ROSARIA
A1 IPPOLITI, FLORA
YR 2006
UL http://ar.iiarjournals.org/content/26/5A/3409.abstract
AB The interleukins (IL)-6 and -10 and heat shock proteins (HSP) have an important role in the host-tumor interaction and in tumor bulk. HSP-90 may have a regulatory role in cytokine biosynthesis and prognostic value in some tumors. To define the role of IL-6, IL-10 and HSP-90 in prostate cancer progression the immunohistochemical expressions of these proteins were analyzed in 168 prostatic carcinomas. IL-6, IL-10 and HSP-90 immunoreactivity was higher in prostatic carcinoma (CaP) and intra-epithelial prostatic neoplasia (PIN) than in normal prostatic tissue (NAP) adjacent to neoplasia. In the epithelium, IL-6, IL-10 and HSP-90 expressions increased from NAP to PIN to CaP. In the stroma, IL-6 and IL-10 expressions decreased significantly from NAP to PIN to CaP (p<0.01 by Chi-square test), while HSP-90 expression increased. In the epithelium of PIN and CaP, IL-6 immunoreactivity was significantly lower than IL-10 and HSP-90. In neoplastic acini HSP-90 levels were significantly higher than those of IL-6 and IL-10 (p<0.01 by Chi-square test). In the stroma of NAP and PIN, but not of CaP, HSP-90 immunoreactivity was significantly lower than that of IL-6 and IL-10 (p<0.01). Our results indicate that the IL-6 and IL-10 cytokine balance differs in pathological and normal prostate, thus suggesting that certain cytokines are specific to the neoplastic prostate. Changes in the expressions of IL-6, IL-10 and HSP-90 in human prostate carcinoma samples could be used as a prognostic marker of disease progression. Copyright© 2006 International Institute of Anticancer Research (Dr. John G. Delinassios), All rights reserved