Renal expression of RANK- RANKL in a rat model of puromycin aminonucleoside nephropathy
- VernacularTitle:嘌呤霉素氨基核苷肾病肾脏中RANK-RANKL的表达
- Author:
Zhonglin FENG
1
;
Shuangxin LIU
;
Wei SHI
;
Houqin XIAO
;
Xinling LIANG
;
Xiaoying LIU
;
Zhiming YE
;
Suxia WANG
;
Yongzheng LIANG
;
Bin ZHANG
;
Wenjian WANG
;
Yanhui LIU
;
Ping MEI
;
Lixia XU
;
Jianchao MA
;
Yunfeng XIA
Author Information
1. 广东省人民医院//广东省医学科学院肾内科
- Keywords:
puromycin aminonucleoside nephropathy;
kidneys;
pokocytes;
RANK;
RANKL;
model;
animals
- From:
Journal of Southern Medical University
2014;(1):65-69
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate RANK-RANKL expression in the kidneys of a rat model of puromycin aminonucleoside nephropathy (PAN). Methods Thirty-six SD rats were randomly divided into PAN model group and normal control group. PAN was induced by a single intravenous injection of 100 mg/kg puromycin aminonucleoside. Serum creatinine and 24-hour urinary protein were measured on days 3, 7, and 14 after the injection, and renal pathologies were assessed with optical and immune transmission electron microscopy. The expression of RANK and RANKL in the kidneys was examined using reverse transcription-ploymerase chain reaction (RT-PCR) and Western blotting. Results The PAN model rats showed massive proteinuria and elevated serum creatinine on day 3, which peaked on day 7. RANK-RANKL protein and mRNA expressions in PAN model group was higher than those in the control group. In the PAN rats, RANK was expressed mainly on the top cell membrane and in the cytoplasm of renal podocytes with a significantly increased expression level compared with that in the control group. Conclusion The PAN rat model shows aberrant RANK and RANKL expressions in the podocytes, indicating their contribution to podocyte injury in PAN.
