Fibrinogen-like Protein 2 Expression Correlates with Microthrombosis in Rats with Type 2 Diabetic Nephropathy

Overview

Journal J Biomed Res

Specialty General Medicine

Date 2013 Apr 5

PMID 23554679

Citations 8

Authors

Guanhua Su

Kun Liu

Yan Wang

Jue Wang

Xiaowei Li

Wenzhu Li

Yuhua Liao

Zhaohui Wang

Affiliations

Soon will be listed here.

Abstract

Fibrinogen-like protein 2 (fgl2), a novel prothrombinase, is involved in microthrombosis. We examined fgl2 expression in the glomerular and tubulointerstitial capillaries and its correlation with microthromsis in rats with streptozocin-induced type 2 diabetic nephropathy. Our RT-PCR and immunoblotting analysis showed that fgl2 mRNA and protein levels were increased in microvascular endothelial cells of the glomeruli and renal interstitia at week 19 and became significantly elevated with the development of diabetic nephropathy (P < 0.01). Fgl2 was not or only weakly expressed in the renal tissues of normal rats. Furthermore, a direct significant correlation (r = 0.543, P < 0.01) was found between fgl2 expression and microthrombotic capillaries in the renal tissues. Enzyme linked immunosorbent assays (ELISA) additionally showed that circulating TNF-α levels in rats with type 2 diabetes were significantly elevated and closely correlated with fgl2 expression (r = 0.871, P < 0.01). Our results suggest that fgl2 may activate renal microthrombosis, thus contributing to glomerular hypertension and renal ischemia.

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