IFNγ suppresses the expression of GFI1 and thereby inhibits Th2 cell proliferation

Murshed H Sarkar, Ryoji Yagi, Yukihiro Endo, Ryo Koyama-Nasu, Yangsong Wang, Ichita Hasegawa, Toshihiro Ito, Ilkka S Junttila, Jinfang Zhu, Motoko Y Kimura, Toshinori Nakayama

Tutkimustuotos: ArtikkeliScientificvertaisarvioitu

1 Lataukset (Pure)

Abstrakti

While IFNγ is a well-known cytokine that actively promotes the type I immune response, it is also known to suppress the type II response by inhibiting the differentiation and proliferation of Th2 cells. However, the mechanism by which IFNγ suppresses Th2 cell proliferation is still not fully understood. We found that IFNγ decreases the expression of growth factor independent-1 transcriptional repressor (GFI1) in Th2 cells, resulting in the inhibition of Th2 cell proliferation. The deletion of the Gfi1 gene in Th2 cells results in the failure of their proliferation, accompanied by an impaired cell cycle progression. In contrast, the enforced expression of GFI1 restores the defective Th2 cell proliferation, even in the presence of IFNγ. These results demonstrate that GFI1 is a key molecule in the IFNγ-mediated inhibition of Th2 cell proliferation.

AlkuperäiskieliEnglanti
Sivute0260204
JulkaisuPLoS ONE
Vuosikerta16
Numero11
DOI - pysyväislinkit
TilaJulkaistu - 2021
OKM-julkaisutyyppiA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

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