[Therapeutic Effect of SPK1 Gene Transfected Adipose Derived Mesenchymal Stem Cells on Experimental Autoimmune Encephalomyelitis Mice and Its Effect on T Helper Cell 17/Regulatory T Cells Balance].

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Abstract (original English)

Objective To investigate the therapeutic effect of SPK1 gene transfected adipose derived mesenchymal stem cells(ADMSC)on experimental autoimmune encephalomyelitis mice and the effect on T helper cell 17(Th17)/regulatory T(Treg) cells balance. Methods EAE was induced by myelin oligodendrocyte glycoprotein 35-55 in mice.Totally 44 mice were randomly divided into four groups:normal control group(NC group),model group(EAE group),ADMSC group,and ADMSC-SPK1 group.Forty days after injection,the pathological changes of brain and spinal cord,Th17/Treg-related inflammatory markers in brain tissue,expressions of interleukin-17A(IL-17A)and forkhead box protein p3(Foxp3)in brain and spinal cord tissue,and flow cytometric results of spleen immune cells were detected. Results Forty days after the injection,serious inflammatory cell infiltration and demyelination occurred in the brain and spinal cord of EAE group,whereas demyelination and axonal injury were improved in ADMSC group and ADMSC-SPK1 group.Compared with EAE group,the ADMSC group and ADMSC-SPK1 group had significantly improved levels of IL-17A( Z =1.021, P =0.017; Z =1.193, P =0.009)and tumor necrosis factor-α(TNF-α)( Z =2.540, P =0.004; Z =3.005, P =0.006).The expression level of IL-17A in mouse brain and spinal cord tissues was significantly reduced in the ADMSC group( t =10.323, P =0.013; t =7.422, P =0.008),and it was significan

Evidence level

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

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