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2018 ; 42
(2
): 946-956
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Enhanced proliferation and differentiation of HO-1 gene-modified bone
marrow-derived mesenchymal stem cells in the acute injured kidney
#MMPMID29749549
Liu N
; Wang H
; Han G
; Cheng J
; Hu W
; Zhang J
Int J Mol Med
2018[Aug]; 42
(2
): 946-956
PMID29749549
show ga
The aim of the present study was to investigate the effect of heme
oxygenase-1 (HO-1) overexpression on the survival and differentiation ability of
bone marrow?derived mesenchymal stem cells (BMSCs) in the acute kidney
injury (AKI) microenvironment. HO-1-BMSCs and enhanced green fluorescent protein
(eGFP)-BMSCs were constructed. Rat ischemia/reperfusion (I/R)?AKI-kidney
homogenate supernatant was prep-ared to treat the BMSCs, eGFP-BMSCs and
HO-1-BMSCs in vitro. In the AKI microenvironment, the HO-1-BMSCs exhibited a
smaller proportion of cells at the G0/G1 phase, and a larger proportion of cells
expressing proliferating cell nuclear antigen (PCNA) and cytokeratin 18 (CK18).
Phosphorylated protein kinase B (Akt) and extracellular signal?regulated
kinase (ERK) protein levels were observed to be increased in the HO-1-BMSCs
compared with the BMSCs. LY294002 and PD98059 each inhibited the above effects.
BMSCs, eGFP-BMSCs and HO-1-BMSCs were implanted into an I/R-AKI rat model. The
proportions of PCNA+ BMSCs and CK18+ BMSCs were higher in the HO-1-BMSCs group
compared with the BMSCs group, which resulted in a decreased acute tubular
necrosis score and improved renal function for the AKI rats. In conclusion, the
enhanced proliferation and differentiation of HO-1-BMSCs suggest the beneficial
effects of such cells in the BMSC-based therapy of AKI. The mechanism underlying
these effects may involve the stimulation of Akt and ERK signaling.