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Deprecated: Implicit conversion from float 249.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Int+J+Clin+Exp+Pathol 2015 ; 8 (5): 5026-34 Nephropedia Template TP
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Cytoprotective effects of high dose of ?-galactosylceramide against activation-induced CD4+ T and CD8+ T cell death as an adjuvant #MMPMID26191196
Qian G; Jin W; Tian X; Ding Z; Shi B; Zhang Q
Int J Clin Exp Pathol 2015[]; 8 (5): 5026-34 PMID26191196show ga
Objective: To investigate the cytoprotective effects of high dose of ?-galactosylceramide (?-GC) on the activation-induced CD4+ T and CD8+ T cell death. Methods: Experimental autoimmune encephalomyelitis (EAE) was induced using adoptive transfer of MOGCD4+ cells treated using ?-GC into recipient C57BL/6 mice while the MOGCD4+ cells treated using 0.5% polysorbate were set as vehicle group, based on which to investigate the effects of ?-GC on activation induced CD4+ T cell death. Additionally, an EG7 tumor-bearing mice model is established using adoptive transfer of CD8+ T cells, based on which to investigate the effect of ?-GC on the apoptosis of CD8+ T cells. Results: A higher induction rate was noticed after adoptive transfer of MOGCD4+ cells treated using ?-GC together with the severity of EAE compared with the conventional methods. Longer survival duration was noted in the green fluorescent protein (GFP) labeled MOGT in the ?-GC group compared with the vehicle group (P < 0.05). Severe inflammatory cell infiltration and myelinoclasis was noted in the white matter of nervous system in the ?-GC group. In the EG7 tumor model, more adoptive CD8+ T cells were survived in ?-GC group compared with that of vehicle group. The growth of tumor mass was significantly inhibited in ?-GC group. Conclusions: high dose of ?-GC could be used as an adjuvant for inhibiting activation-induced CD4+ T and CD8+ T cell death. Our study could provide helpful information for the development of adoptive cell therapy with reduced programmed cell death.