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. 2012 Jul 9;7(7):e40437. doi: 10.1371/journal.pone.0040437

Figure 9. Proposed models of the TRH-NR4A1-TSHβ pathway.

Figure 9

TRH stimulates the transcription of the NR4A1 gene through TRH receptors, and PKC and MAPK pathways within 1 hr. The increased amount of NR4A1 stimulates TSHβ promoter activity, which may act cooperatively with Pit1 and GATA2 on the gene.