激素对T淋巴细胞生长激素基因表达调控的影响

Effects of hormones on expressional regulation of growth hormone(GH) gene in T lymphocyte

目的 :探讨各种激素对T淋巴细胞GH基因表达的影响。方法 :构建含人GH调控序列的荧光素酶报告基因质粒PGL2 GH luc,然后转染入T淋巴细胞系———JurkatE6 1细胞中 ,在培养液中分别加入各种激素。结果 :各浓度的GH、GHRH对Jurkat细胞中荧光素酶的表达有抑制作用 (P <0 0 1) ,而高剂量的TRH( 10、10 0nmol/L)和SS( 10 0nmol/L)对Jurkat细胞中荧光素酶的表达也有抑制作用 ( P<0 0 5 )。结论 :T淋巴细胞中GH基因的表达受下丘脑激素和GH的调节。

Objective:To study the effects of hormones on expression of GH gene in T lymphocyte.Methods:PGL2 GH Lucaluciferase reporter gene expression plasmid with hGH gene promotor was constructed and was transfected into Jurkat cells,Hormones were put into the medium of cell culture.Results:The expression of luciferase in Jurkat cells could be inhibited by different doses of hGH and GHRH (P<0 01), and could also be inhibited by high concentration of SS and TRH(100 nmol/L)(P<0 05).Conclusion:Hypothalamic hormones and GH can regulate the expression of GH gene in T lymphocytes.