TURKISH JOURNAL OF ONCOLOGY 2007 , Vol 22 , Num 2
Prognostic significance of NF-κB in resectable gastric cancer treated with concomittant chemoradiotherapy
Oğuz Galip YILDIZ,1 Serdar SOYUER, 1 Işın SOYUER, 2Kadir UÇAR, 1 Mete GÜNDOĞ, 1 Bünyamin KAPLAN, 1 Metin ÖZKAN3
1Erciyes Üniversitesi Tıp Fakültesi, Radyasyon Onkolojisi Anabilim Dalı, Kayseri
2Erciyes Üniversitesi Tıp Fakültesi, Patoloji Anabilim Dalı, Kayseri
3Erciyes Üniversitesi Tıp Fakültesi, Medikal Onkoloji Bilim Dalı, Kayseri
OBJECTIVES
The aim of this study is to determine the prognostic value of transcription factor nucleer factor kappa B ( N F -κB) in resectable gastric cancer patients treated with concurrent chemoradiotherapy.

METHODS
Forty-nine (35 males, 14 females; median age 55; range 2273 years) resectable gastric cancer patients treated with gastrectomy and adjuvant concurrent chemoradiotherapy were enrolled in this study. All patients received weekly 250 mg/ m2 5-FU chemotherapy and radiotherapy concomittantly after gastrectomy. Then patients received 4 cycles i.v bolus FUFA chemotherapy sequentialy as consolidation treatment 2-4 week after chemoradiotherapy. Immunohistochemistry staining was performed on paraffin embedded tissue. NF-κB monoclonal antibodies were used for the staining.

RESULTS
The progression free surv ival and overall surv ival dif er e nce were anal ised between NF-κB pos it ive and neg at ive groups. For NF-kB a specimen was judged posit ive if more than 10% of the total cancer cells in a single field of view showed a response.

CONCLUSION
In patients who NF-κB was stained more than 10%, the overall survival was worse and there was statistically significant difference between groups. But in two groups, no statistically significant difference due to disease free survival. Keywords : Chemoradiotherapy; gastric cancer/patoloji; immunohistochemistry; NF-kappa B; prognostic factor; survival rate