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Colchicine Ameliorates High Glucose-Induced ICAM-1 and Fibronectin Expression in Renal Cells via Inhibiting Locally-Produced Angiotensin II.

Authors
 Eun Jin Kim  ;  Dong Ho Shin  ;  Jin Ji Li  ;  Sun Ha Lee  ;  Yong Kang Lee  ;  Hee-Jin Park  ;  Hannah Seok  ;  Jung Tak Park  ;  Seung Hyeok Han  ;  Tae-Hyun Yoo  ;  Shin-Wook Kang 
Citation
 Korean Journal of Nephrology, Vol.30(6) : 575-584, 2011 
Journal Title
Korean Journal of Nephrology
ISSN
 1975-9460 
Issue Date
2011
Keywords
Colchicine ; Diabetic nephropathy ; Renin-angiotensin system ; ICAM-1 ; Fibronectin
Abstract
PURPOSE: A previous study has demonstrated that colchicine abrogated intercellular adhesion molecule (ICAM)-1 and fibronectin expression in renal cells exposed to high glucose media, but the underlying mechanism was not clarified. This study was undertaken to elucidate whether it was attributed to the inhibitory effect of colchicine on locally-produced angiotensin II (AII) under diabetic conditions. METHODS: Rat mesangial cells and NRK-52E cells were cultured in media containing 5.6 mM glucose (NG), NG+10(-7) M AII (NG+AII), or 30 mM glucose (HG) with or without 10(-8) M colchicine (Col) and/or 10(-6) M L-158,809, an AII type 1 receptor blocker (ARB). ICAM-1 and fibronectin mRNA and protein expressions were determined by real-time PCR (RT-PCR) and Western blot, respectively. AII levels in conditioned media were determined by ELISA. RESULTS: AII levels in conditioned media were significantly higher in HG-stimulated mesangial cells and NRK-52E cells compared to NG cells (p<0.05). ICAM-1 and fibronectin mRNA and protein expression were significantly increased in renal cells exposed to HG media (p<0.05 or p<0.01), and these increases were significantly ameliorated by colchicine or ARB treatment (p<0.05). Colchicine and ARB also significantly attenuated AII-induced ICAM-1 and fibronectin expression (p<0.05). However, there was no additive inhibitory effect of colchicine and ARB on the increases in ICAM-1 and fibronectin expression. CONCLUSION: Colchicine abrogated increased ICAM-1 and fibronectin expression in renal cells under diabetic conditions, which is partly mediated by inhibiting HG-induced locally-produced AII. These findings provide a new renoprotective mechanism of colchicine in diabetic nephropathy in addition to its impact on leukocyte functions
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Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Kang, Shin Wook(강신욱) ORCID logo https://orcid.org/0000-0002-5677-4756
Kim, Eun Jin(김은진)
Park, Jung Tak(박정탁) ORCID logo https://orcid.org/0000-0002-2325-8982
Park, Hee Jin(박희진)
Seok, Hannah(석한나)
Yoo, Tae Hyun(유태현) ORCID logo https://orcid.org/0000-0002-9183-4507
Lee, Yong Kang(이용강)
Han, Seung Hyeok(한승혁) ORCID logo https://orcid.org/0000-0001-7923-5635
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/94735
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