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

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 underst...

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Main Authors: 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
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2021-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0260204
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author 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
author_facet 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
author_sort Murshed H Sarkar
collection DOAJ
description 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.
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spelling doaj.art-62f4a8a367f34005a027aa1979cbb21d2022-12-21T19:39:17ZengPublic Library of Science (PLoS)PLoS ONE1932-62032021-01-011611e026020410.1371/journal.pone.0260204IFNγ suppresses the expression of GFI1 and thereby inhibits Th2 cell proliferation.Murshed H SarkarRyoji YagiYukihiro EndoRyo Koyama-NasuYangsong WangIchita HasegawaToshihiro ItoIlkka S JunttilaJinfang ZhuMotoko Y KimuraToshinori NakayamaWhile 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.https://doi.org/10.1371/journal.pone.0260204
spellingShingle 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
IFNγ suppresses the expression of GFI1 and thereby inhibits Th2 cell proliferation.
PLoS ONE
title IFNγ suppresses the expression of GFI1 and thereby inhibits Th2 cell proliferation.
title_full IFNγ suppresses the expression of GFI1 and thereby inhibits Th2 cell proliferation.
title_fullStr IFNγ suppresses the expression of GFI1 and thereby inhibits Th2 cell proliferation.
title_full_unstemmed IFNγ suppresses the expression of GFI1 and thereby inhibits Th2 cell proliferation.
title_short IFNγ suppresses the expression of GFI1 and thereby inhibits Th2 cell proliferation.
title_sort ifnγ suppresses the expression of gfi1 and thereby inhibits th2 cell proliferation
url https://doi.org/10.1371/journal.pone.0260204
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