Expression and Function of Nicotinic Acetylcholine Receptors in Induced Regulatory T Cells.

Expression and Function of Nicotinic Acetylcholine Receptors in Induced Regulatory T Cells.
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DOI:
10.3390/ijms23031779
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发表时间:
2022-02-04
影响因子:
5.6
通讯作者:
Kaminuma O
Kaminuma O
中科院分区:
生物学2区
文献类型:
--
作者:
Nakata Y;Miura K;Yamasaki N;Ogata S;Miura S;Hosomi N;Kaminuma O

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A contribution of the cholinergic system to immune cell function has been suggested, though the role of nicotine and its receptors in T cells, especially regulatory T (Treg) cells, is unclear. We herein investigated the expression and function of nicotinic acetylcholine receptors (nAChRs) in murine-induced Treg (iTreg) cells. Upon differentiation of naive BALB/c T cells into iTreg cells and other T-cell subsets, the effect of nicotine on cytokine production and proliferation of iTreg cells was examined. The expression of nAChRs and its regulatory mechanisms were comparatively analyzed among T-cell subsets. Stimulation-induced transforming growth factor-β1 (TGF-β1) production of iTreg cells was suppressed by nicotine, whereas interleukin (IL)-10 production and proliferation was not affected. α2-, α5-, α9-, and β2-nAChRs were differentially expressed in naive, Th1, Th2, Th9, Th17, and iTreg cells. Among these cell types, the α9-nAChR was particularly upregulated in iTreg cells via its gene promoter, but not through tri-methylation at the 4th lysine residue of the histone H3-dependent mechanisms. We conclude that the immunoregulatory role of Treg cells is modified by the cholinergic system, probably through the characteristic expression of nAChRs.
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