Immunohistochemical Analysis of the Extrinsic Apoptosis Process in the Non-Neoplastic and Neoplastic Prostate.         
Yazarlar (6)
Ayşe Burcu İleri
Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Reşit Doğan Köseoğlu
Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Fatma Markoç
Tokat Gaziosmanpaşa Üniversitesi, Türkiye
İlker Etikan
Yakın Doğu Üniversitesi, Kıbrıs Rum Kesimi
Prof. Dr. Doğan ATILĞAN Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Faik Alev Deresoy
Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Makale Türü Açık Erişim Özgün Makale
Makale Alt Türü ESCI dergilerinde yayınlanan tam makale
Dergi Adı Turk Patoloji Dergisi
Dergi ISSN 1018-5615 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler ESCI
Makale Dili İngilizce
Basım Tarihi 01-2018
Cilt No 34
Sayı 1
Sayfalar 19 / 28
DOI Numarası 10.5146/tjpath.2017.01409
Özet
Objective: Deviations in the apoptotic process have been demonstrated in prostate carcinogenesis. We aimed to evaluate especially the process of extrinsic apoptosis in the spectrum of neoplastic lesions of the prostate epithelium so as to reveal the variations in the apoptotic process.Material and Method: The study included 20 benign prostatic hyperplasia, 8 high-grade prostatic intraepithelial neoplasia and 82 prostatic carcinoma patients. Immunohistochemistry was performed on sections obtained from materials of suprapubic prostatectomy, tru-cut biopsy, transurethral resection and radical prostatectomy. While Fas and FasL were evaluated in glandular and stromal areas, Dcr1 and FLIP were evaluated in only glandular areas. Intensity and extent of immunostaining for Fas and FasL antibodies were separately scored and both scores were summarized. The total score of ≥ 4 both for Fas and FasL, expressions of FLIP and Dcr1determined in more than 5% of glandular areas were accepted as positive. Results: Glandular FasL positivity was observed in 63.8 and 20% of the cases with prostatic carcinoma and benign prostatic hyperplasia, respectively (p=0.001). The loss of stromal Fas expression in PCa was obvious (p<0.001). FLIP positivity was more frequently seen in high-grade prostatic intraepithelial neoplasia and PCa. Conclusion: In prostatic carcinoma, decreased stromal Fas expression, contrary to higher glandular FasL positivity, supports the assertion that sensitivity of epithelial and stromal cells to apoptosis and their protective pathways against apoptosis undergo alterations. Increased FLIP expressions in high-grade prostatic intraepithelial neoplasia and prostatic carcinoma can also be interpreted accordingly
Anahtar Kelimeler
Carcinogenesis | DcR1 | Fas | FasL | FLIP | Prostate