Bcl-2 expression and apoptosis in nephrotoxic nephritis

被引：0

作者：

Sugiyama, H ^{[1
]}

Kashihara, N ^{[1
]}

Onbe, T ^{[1
]}

Yamasaki, Y ^{[1
]}

Wada, J ^{[1
]}

Sekikawa, T ^{[1
]}

Okamoto, K ^{[1
]}

Kanao, K ^{[1
]}

Maeshima, Y ^{[1
]}

Makino, H ^{[1
]}

机构：

[1] Okayama Univ, Sch Med, Dept Med 3, Okayama 700, Japan

来源：

EXPERIMENTAL NEPHROLOGY | 1997年 / 5卷 / 06期

关键词：

Bcl-2; apoptosis; Masugi nephritis; nephrotoxic serum; inflammation; heterologous phase; autologous phase;

D O I：

暂无

中图分类号：

R5 [内科学]; R69 [泌尿科学（泌尿生殖系疾病）];

学科分类号：

1002 ; 100201 ;

摘要：

The product of the Bcl-2 proto-oncogene has been shown to prolong cell survival by preventing apoptosis in several cell lineages. To investigate the regulatory mechanisms of apoptosis in glomerulonephritis, we examined the expression pattern of the Bcl-2 protein together with cellular events in rat nephrotoxic nephritis. Bcl-2 protein and proliferating cell nuclear antigen were detected in glomeruli by immunohistochemistry. Morphologic changes of apoptosis were identified by electron and light microscopy and an in situ DNA nick end labeling method. The first (heterologous) phase began with significant neutrophil infiltration shortly after the injection of nephrotoxic serum. Both Bcl-2 expression and the number of proliferating cells in the glomeruli were at maximum at 24 h in the heterologous phase. Glomerular hypercellularity with an influx of macrophages and the number of apoptotic glomerular cells peaked on day 14 in the second (autologous) phase. Glomerulonephritis resolved after that. These results suggest that overexpression of the Bcl-2 protein may play a role in glomerular cell survival and exacerbation of glomerulonephritis. Apoptosis may occur as an active mechanism in the resolution of the autologous phase in nephrotoxic nephritis.

引用

页码：481 / 489

页数：9

共 41 条

[1] THE PROTOONCOGENE BCL-2 CAN SELECTIVELY RESCUE NEUROTROPHIC FACTOR-DEPENDENT NEURONS FROM APOPTOSIS [J].