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2015 ; 8
(10
): 12368-78
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Transforming growth factor-?1 promotes homing of bone marrow mesenchymal stem
cells in renal ischemia-reperfusion injury
#MMPMID26722423
Si X
; Liu X
; Li J
; Wu X
Int J Clin Exp Pathol
2015[]; 8
(10
): 12368-78
PMID26722423
show ga
BACKGROUNDS: Acute ischemia reperfusion-induced kidney injury is a common cause
of acute renal failure, and it is also an important cause of delayed recovery of
transplanted kidney functions and even loss of function. However, there is no
effective treatment method in clinical applications presently. OBJECTIVE: The
objective was to investigate effects of transforming growth factor-?1 on homing
of bone marrow mesenchymal stem cells in renal ischemia-reperfusion injury.
METHODS: Effects of TGF-?1 over-expression in MSCs on expression of CXCR4 and
chemotactic effect to SDF-1 were investigated by in vitro transmembrane
chemotaxis. Anti-TGF-?1 antibody was incubated with ischemia reperfusion injury
renal tissue homogenate and effects of anti-TGF-?1 antibody were observed. In
addition, effects of TGF-?1 gene transfection and anti-CXCR4 antibody treatment
in MSCs on expression of SDF-1/CXCR4 axis of renal tissues and damage repair were
further explored. RESULTS: Expression of TGF-?1 mRNA in the IRI group increased
significantly, and MSCs transplantation could enhance expression of CXCR4 mRNA in
rats of the IRI group, the expression of CXCR4 can be decreased by the
anti-TGF-?1 antibody and the anti-CXCR4 antibody. TGF-?1 induced homing of MSCs
in repair of renal ischemic reperfusion injury by regulating expression of CXCR4
on cell membranes. Blue fluorescence of DAPI-positive MSCs cells of renal
parenchyma in the IRI+MSC group was enhanced significantly, which was
significantly inhibited by anti-TGF-?1 and anti-CXCR4 antibody, and the
inhibitory effect of anti-CXCR4 antibody was more obvious than that of
anti-TGF-?1 antibody. CONCLUSION: Transforming growth factor-?1 promotes homing
of bone marrow mesenchymal stem cells in renal ischemia-reperfusion injury, which
will provide useful data on role of TGF-?1 in regulating SDF-1/CXCR4 axis-induced
MSCs homing.