Chronic hepatitis B serum promotes apoptotic damage in human renal tubular cells |
| |
Authors: | Deng Cun-Liang Song Xin-Wen Liang Hai-Jun Feng Chen Sheng Yun-Jian Wang Ming-Yong |
| |
Institution: | 1. Department of Infectious Diseases, Affiliated Hospital of Luzhou Medical College, Luzhou 646000, Sichuan Province,China 2. Department of Infectious Diseases, Affiliated Hospital of Xinxiang Medical College, Weihui 453100, Henan Province, China |
| |
Abstract: | AIM: To investigate the effect of the serum of patients with chronic hepatitis B (CHB) on apoptosis of renal tubular epithelial cells in vitro and to study the role of hepatitis B virus (HBV) and transforming growth factor-beta (1) (TGF-beta (1)) in the pathogenesis of hepatitis B virus associated glomerulonephritis (HBV-GN). METHODS: The levels of serum TGF-beta(1) were measured by specific enzyme linked immunosorbent assay (ELISA) and HBV DNA was tested by polymerase chain reaction (PCR) in 44 patients with CHB ,and 20 healthy persons as the control. The normal human kidney proximal tubular cell (HK-2) was cultured together with the sera of healthy persons, CHB patients with HBV-DNA negative (20 cases) and HBV-DNA positive (24 cases) for up to 72 h. Apoptosis and Fas expression of the HK-2 were detected by flow cytometer. RESULTS: The apoptosis rate and Fas expression of HK-2 cells were significantly higher in HBV DNA positive serum group 19.01%+/-5.85% and 17.58%+/-8.35%, HBV DNA negative serum group 8.12%+/-2.80% and 6.96%+/-2.76% than those in control group 4.25%+/-0.65% and 2.33%+/-1.09%, respectively (P<0.01). The apoptosis rate and Fas expression of HK-2 in HBV DNA positive serum group was significantly higher than those in HBV DNA negative serum (P<0.01). Apoptosis rate of HK-2 cells in HBV DNA positive serum group was positively correlated with the level of HBV-DNA (r = 0.657). The level of serum TGF-beta (1) in CHB group was 163.05+/-91.35 microg/L, significantly higher as compared with 81.40+/-40.75 microg/L in the control group (P<0.01). CONCLUSION: The serum of patients with chronic hepatitis B promotes apoptotic damage in human renal tubular cells by triggering a pathway of Fas up-regulation. HBV and TGF-beta (1) may play important roles in the mechanism of hepatitis B virus associated glomerulonephritis. |
| |
Keywords: | Renal tubular epithelial cells HBV Apoptosis |
本文献已被 CNKI 维普 万方数据 PubMed 等数据库收录! |
|