کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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2048291 | 1074075 | 2012 | 6 صفحه PDF | دانلود رایگان |

Gonadotropin-releasing hormone (GnRH) regulates the synthesis and secretion of follicle-stimulating hormone (FSH) by stimulating the transcription of Fshβ gene. Our iTRAQ quantitative proteomics result showed that the abundance of α-actinin4 (ACTN4) increased in the nuclei of LβT2 cells upon GnRH induction. Using RNA interference, reverse transcription and real-time PCR, luciferase and transient transfection assays, we proved that ACTN4 is involved in the regulation of mouse Fshβ gene (mFshβ) transcription and its C-terminal calmodulin (CaM)-like domain is crucial for this process. Our study suggests that ACTN4 nuclear translocation mediates GnRH stimulation of mFshβ gene transcription.
► GnRH induces ACTN4 nuclear translocation.
► ACTN4 is involved in the regulation of mFshβ gene transcription.
► C-terminal CaM-like domain of ACTN4 is crucial for the above regulation.
► Both Ca2+ signaling pathway and MAPK pathway play roles in GnRH gene regulation.
Journal: FEBS Letters - Volume 586, Issue 10, 21 May 2012, Pages 1466–1471