The impact of hepatitis B virus concurrent infection on peripheral T cells in diffuse large B cell lymphoma patients
10.3969/j.issn.1007-3969.2014.10.009
- VernacularTitle:合并乙肝病毒感染对弥漫大B细胞淋巴瘤患者细胞免疫功能的影响
- Author:
Zheng WEI
;
Yunfeng CHENG
;
Zhimei WANG
;
Shanhua ZOU
- Publication Type:Journal Article
- Keywords:
Diffuse large B cell lymphoma;
Cell immunity;
Chemotherapy
- From:China Oncology
2014;(10):765-769
- CountryChina
- Language:Chinese
-
Abstract:
Background and purpose:The clinical relevance of HBV infection with respect to diffuse large B cell lymphoma(DLBCL) patients and immune patterns of T lymphocyte subsets during chemotherapy remains unclear. This study aimed to identify the characteristics of T-cell mediated immunity in DLBCL patients with HBV infection, thereafter, to explore the possible cell-mediated immune mechanisms of HBsAg positive HBV infection on the survival of DLBCL. Methods:A total of 294 newly diagnosed DLBCL patients were enrolled in this cohort study. Four-color flow cytometric method was used to enumerate the absolute number of CD3+, CD4+, CD8+T lymphocytes and the CD4+/CD8+ratio in peripheral blood samples, at the onset of disease, 2-4, 4-6 and 6-12 months after the initiation of chemotherapy, individually. Results:The absolute number of CD3+, CD4+, CD8+T lymphocytes in both groups were similar at the onset of disease;the count of CD4+lymphocytes was lower in HBsAg positive group during 2 to 4 months after the initiation of chemotherapy, compared with that in the HBsAg negative group. During 4 to 12 months after chemotherapy, the CD4+/CD8+ratio in peripheral blood samples was significantly lower in HBsAg positive group. Conclusion:For newly diagnosed DLBCL patients who received chemotherapy, the dynamic nature of cell mediated immune response was characterized as a low counts of CD4+T lymphocyte during the ifrst several cycles of chemother-apy followed by a decreased circulating CD4+/CD8+ratio. Depressions of cell immunity after chemotherapy in HBsAg positive DLBCL patients were greater and prolonged.
