All-transRetinoic Acid Regulates Th1/Th2 Balance in CD4+ T cells When GATA-3 is Deficient
The essential effect of vitamin A on immune function occurs through various mechanisms including direct effect on Th1-Th2 balance modulation.However,it is unclear whether or not vitamin A can regulate Th1-Th2 balance under a strong Th1-polarizing condition.Therefore,the purpose of our study was to examine the effect of vitamin A metabolite all-trans retinoic acid (ATRA)on Th1-Th2 differentiation in CD4+ T cells under GATA-3 deficiency,which can induce Th1-polarizing condition.In the present study,GATA-3 deficiency T cells were induced by siRNA and checked by real-time quantitative PCR and western blot.GATA-3 deficiency CD4+ T cells and normal CD4+ T were treated for 48 h with or without ATRA.The expression of Th1 and Th2 cytokines were detected by qPCR and ELISA.The results would contribute to clarify the knowledge of the role of vitamin A in regulating Th1-Th2 balance under some special conditions,and help to explain the mechanism of immune regulatory function of vitamin A.
|ZHU Yan Feng, HU Jia Zhe, ZHAO Pin Nan, LIU Lin Xi, LI Yun. All-transRetinoic Acid Regulates Th1/Th2 Balance in CD4+ T cells When GATA-3 is Deficient[J]. Biomedical and Environmental Sciences, 2013, 26(9): 774-777. doi: 10.3967/0895-3988.2013.09.010