Objective To discuss the meaning and association with prognosis of Bcl-w expression in gastric carcinoma. Methods By Immunohistochemistry( SP) method was used to detect the expression of Bcl-w and MMP-2 in 100 cases of human gastric carcinoma. Results (1) Among 100 cases of stomach carcinoma, Bcl-w and MMP-2 positive expression rates were respectively 69. 0% , 77. 0% ; (2) The Bcl-w and MMP-2 expression in gastric carcinoma was positively associated with tumor size, invasive depth, histology differentiation and lymph node metastasis(P<0.05) ;(3)The expression of Bcl-w was significantly correlated with MMP-2 in gastric carcinomas (P =0.002) ; (4) Five years survival rates and overall survival of Bclw-positive patients were lower than the Bcl-w -negative patients. Conclusions (1)Bcl-w plays an important role in inhibiting apoptosis of gastric cancer and promoting gastric cancer invasion; (2) Bcl-w-positive expression patients have a bad prognosis and Bcl-w expression in gastric carcinoma can be regarded as a prognosis evaluation index.

Objective To investigate the diagnostic value of PIgP/SC in diagnosis of primary hepatic cancer.Methods 58 patients with primary hepatic cancer,60 patients with liver cirrhosis and 60 healthy volunteers were studied.4 ml fasting venous blood was collected from all subjects.Serum level of AFP was detected with electrochemical chemiluminescence immunoassay system and plasma PIgR/SC level was detected by ELISA method.The level of PIgR/SC and AFP was detected at one week after surgical resection in patients with hepatic cancer.Results The levels of AFP and PIgR/SC in the three groups were significantly different (P＜0.01),and PIgR/SC was higher than that in patients with cirrhosis and volunteers (P＜0.01).There was no significant difference between patients with liver cirrhosis and liver cirrhosis(P＞0.05).AFP was higher in patients with HCC than patients with cirrhosis and volunteers.AFP was higher in patients with cirrhosis than volunteers,and the difference was statistically significant(P＜0.01).Sensitivity of PIgR/SC and AFP was 89.3％ and 54.8％,specificity was 84.6％ and 91％,Youden index was 0.751 and 0.458,AUC was 0.920 and 0.761,respectively.There was significant difference in AUC (Z=3.251,P＜0.05) of the two detection indexes for detection of primary hepatic cancer.Conclusion The value of PIgR/SC in diagnosis of primary liver cancer may by higher than that of AFP.