Abstract:
:The TORC1 pathway is necessary for ribosomal biogenesis and initiation of protein translation. Furthermore, the differentiation of Th1 and Th17 cells requires TORC1 activity. To investigate the role of the TORC1 pathway in the differentiation of Th1 and/or Th17 cells in more detail, we compared the differentiation capacity of naïve T cells from wild type and p70(S6K1) knockout mice. Expression of many of the genes associated with Th17-cell differentiation, such as IL17a, IL17f, and IL-23R, were reduced in p70(S6K1) knockout mice. In contrast, the development of Th1, Th2, and Treg cells was unaffected in the absence of p70(S6K1) . Furthermore, expression of the major transcription factor in Th17-cell differentiation, retinoic acid receptor-related orphan receptor gamma T, remained unchanged. However, the acetylation of histone 3 at the promoters of IL17a and IL17f was reduced in the absence of p70(S6K1) . In accordance with the in vitro data, the kinetics, but not the development, of EAE was affected with the loss of p70(S6K1) expression. Collectively, our findings suggested that both in vitro and in vivo differentiation of Th17 cells were positively regulated by p70(S6K1) .
journal_name
Eur J Immunoljournal_title
European journal of immunologyauthors
Sasaki CY,Chen G,Munk R,Eitan E,Martindale J,Longo DL,Ghosh Pdoi
10.1002/eji.201445422subject
Has Abstractpub_date
2016-01-01 00:00:00pages
212-22issue
1eissn
0014-2980issn
1521-4141journal_volume
46pub_type
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journal_title:European journal of immunology
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journal_title:European journal of immunology
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