ABSTRACT
BACKGROUND:It has been confirmed that basic fibroblast growth factor (bFGF) can promote the growth, proliferation, differentiation and functional expression of most cels derived from neuroderm and mesoderm. OBJECTIVE:To investigate the effect of bFGF-transfected bone marrow mesenchymal stem cel transplantation in rats with acute kidney injury. METHODS: bFGF genes were transfected into bone marrow mesenchymal stem cels via an adenovirus vector, and then expression of bFGF in transfected cels was identified using RT-PCR technology. Rat models of acute kidney injury were prepared by clipping bilateral renal pedicles, and then randomized into three groups (n=20): rats were given injection of bone marrow mesenchymal stem cel suspensionsvia tail vein as negative transfected group, those given injection of bFGF-transfected bone marrow mesenchymal stem cel suspensionsvia tail vein as bFGF-transfected group, and the others given injection of DMEMvia tail vein as model group. Four weeks later, levels of serum creatinine and urea nitrogen were detected, expressions of connective tissue growth factor and growth factor in renal tissues were detected by Western blot assay, and morphology of renal tissues was observed using hematoxylin-eosin staining. RESULTS AND CONCLUSION:bFGF genes were successfuly transfected into bone marrow mesenchymal stem cels. Compared with the model group, the levels of serum creatinine and urea nitrogen were significantly reduced in bFGF-transfected and negative transfected groups, especialy in the bFGF-transfected group (P 0.05). Besides, renal tissues necrosis and inflammatory reactions were mitigated in the negative transfected group; renal tubules with normal outlines and no overt necrotic cels could be found in the bFGF-transfected group. These findings show that bFGF-transfected bone marrow mesenchymal stem cel transplantation plays a better role in acute kidney injury repair in rats.