Title: Cilostazol down-regulates intercellular adhesion molecule-1 expression in kidney in streptozocin-induced diabetic rats
Abstract:Objective: To investigate the effect of cilostazol on intercellular adhesion molecule-1(ICAM-1) in kidney of diabetic rats and the protective effect of cilostazol on diabetic kidney.Methods: The diabe...Objective: To investigate the effect of cilostazol on intercellular adhesion molecule-1(ICAM-1) in kidney of diabetic rats and the protective effect of cilostazol on diabetic kidney.Methods: The diabetic model of male SD rat was prepared by streptozocin(STZ) intraperitoneally.There were 4 groups: normal control group(n=10),diabetic control group(n=15),high-dose of cilostazol group(n=15,25 mg·kg-1·d-1) and low-dose of cilostazol group(n=15,18 mg·kg-1·d-1).Treatment for 12 weeks,all animals were sacrificed.The fasting blood glucose(BG),HbA1c,the ratio of kidney weight to body weight were measured;the ICAM-1 mRNA level of kindey was semi-quantitated by RT-PCR;the expression of ICAM-1 protein of kidney was detected by western blot;the ICAM-1 location tested by immunofluorescence.Results: The levels of BG and HbA1c in diabetic control group were higher than those in normal control group(P0.05).Compared with diabetic group,the levels of BG and HbA1c did not decrease significantly in both cilostazol treatment groups.Compared with normal control group,the ratio of kidney weight to body weight significantly increased in diabetic control group(P0.01)and Cilostazol treatment groups(P0.01).The expression of renal ICAM-1 mRNA in diabeteic control group was significant higher than that in other groups,but showed a down-regulation in cilostazol groups(P0.01).By immunofluoescence,ICAM-1 staining in diabetic group was strong and located at fargoing kidney tissues,but was weak and located within limits in diabetic animals with cilostazol treatmeat.By western blotting,expression of ICAM-1 protein of kidney was weak in normal control group,increased significantly in diabetic control group,and had a tendency to decrease after the treatment with cilostazol.Conclusion: The expression of ICAM-1 increases in kidney of the STZ-induced SD diabetic rat.Cilostazol can protect the kidney by decreasing the expression of ICAM-1 and delay the development of diabetic nephropathy.Read More
Publication Year: 2006
Publication Date: 2006-01-01
Language: en
Type: article
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