Effect of antisense TGF-beta1 oligodeoxynucleotides in streptozotocin- induced diabetic rat kidney |
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| Authors: | Jeong Hyo Soon Park Kwan Kyu Park Kwan Kyu Kim Sang Pyo Choi In Jang Lee In Kyu Kim Hyun Chul |
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| Affiliation: | Department of Anatomy, Keimyung University School of Medicine, Daegu, Korea.;*Department of Pathology, Keimyung University School of Medicine, Daegu, Korea.;†Department of Internal Medicine, Keimyung University School of Medicine, Daegu, Korea.;‡Kidney Institute, Keimyung University School of Medicine, Daegu, Korea. |
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| Abstract: | Transforming growth factor (TGF)-beta1 is an important fibrogenic factor that is involved in the pathogenesis of diabetic nephropathy. We evaluated the effect of circular antisense TGF-beta1 oligodeoxynucleotides (ODNs) on the TGF-beta1 expression in the rat mesangial cell culture and in streptozotocin (STZ)-induced diabetic rats. Circular antisense TGF-beta1 ODNs were found to be stable in rat serum, significantly decreasing TGF-beta1 mRNA expression compared with linear antisense ODNs in the rat mesangial cell culture. Circular antisense TGF-beta1 ODNs were introduced into the tail vein of normal rats using hemagglutinating virus of Japan (HVJ)-liposome-mediated gene transfer method and were confirmed to be delivered effectively into the kidney, liver, lungs, and spleen. To inhibit the overexpression of TGF-beta1 in diabetic kidneys, we introduced circular antisense TGF-beta1 ODNs into the STZ-induced diabetic rats. On day 13 after circular antisense TGF-beta1 ODNs injection, TGF-beta1 mRNA and protein expression markedly decreased and urinary TGF-beta1 excretion rate also dropped in the circular antisense TGF-beta1 ODNs-treated diabetic rats. These results suggest that circular antisense TGF-beta1 ODNs may be a useful tool for developing new therapeutic application for progressive diabetic nephropathy. |
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| Keywords: | Transforming Growth Factors Diabetes Mellitus Oligonucleotides Streptozotocin |
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