Objective To study the relationship between EBV infection of classic Hodgkin's lyphoma and expression of p16 protein.Methods EBER-1 and p16 protein expression in 80 cases of CHL were studied with EBER-1 oligonucleotide probe and immunohistochemistry respectively.Results 80 cases of CHL were enrolled in this study,including male 52 cases,28 cases of female,male to female ratio of 1.86 ∶ 1.The positive rate of EBER-1 in female was 39.29％ and in male was 63.46％,which have statistically significant difference (x2 =4.298,P =0.038).The positive rate of EBER-1 in children and the older was significantly higher than that in adult (x2 =20.13,P =0.000).EBER-1 positive expression located in the R-S nuclei which positive expression rate was 55.00％,including mixed cell type (MC) 71.79％,lymphocyte depletion type (LD) 42.85％.lymphocyte predominance (LP) 47.06％ and nodular sclerosis type (NS) 29.41％.MG type was significantly higher than NS ( x2 =8.787,P =0.003 ) ; p16 was noted in thc nucleus and cytoplasm.The total positive expression rate was 45％,and subtype positive rates were 47.05％ (LP),48.71％ ( MC),35.29％ (NS) and 42.85％ (LD).There was a negative correlation between p16 protein and EBER-1 ( r =-0.242,P ＜ 0.05 ).Conclusions CHL may be related to EBV latent infection and it can be considered as potential markers to identify HRS cells in diagnosis.

Purpose:Detection of p53,IGF IR and PCNA abnormal expression in tumor tissues of Han, Uygur patients with breast benign and malignant lesions may offer more important molecular biologic data of human breast carcinogenesis. Methods:p53?IGF IR and PCNA in 56 breast cancer,38 adenosis, 25 papilloma tissues were dectected by immunohistochemistry (LSAB). Results:The postive frequency of p53 protein, PCNA in breast cancer (58 9%, 98.2%) was found to be notably higher than in benign lesions (4%～5.3%,76%～78.9%) respectively ( P