Research output: Contribution to journal › Article › peer-review
Daniel Chauss, Tilo Freiwald, Reuben McGregor, Bingyu Yan, Luopin Wang, Estefania Nova-Lamperti, Dhaneshwar Kumar, Zonghao Zhang, Heather Teague, Erin E. West, Kevin M. Vannella, Marcos J. Ramos-Benitez, Jack Bibby, Audrey Kelly, Amna Malik, Alexandra F. Freeman, Daniella M. Schwartz, Didier Portilla, Daniel S. Chertow, Susan John & 9 more
Original language | English |
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Pages (from-to) | 62-74 |
Number of pages | 13 |
Journal | Nature Immunology |
Volume | 23 |
Issue number | 1 |
Early online date | 11 Nov 2021 |
DOIs | |
Accepted/In press | 2021 |
E-pub ahead of print | 11 Nov 2021 |
Published | Jan 2022 |
Additional links |
The molecular mechanisms governing orderly shutdown and retraction of CD4+ type 1 helper T (TH1) cell responses remain poorly understood. Here we show that complement triggers contraction of TH1 responses by inducing intrinsic expression of the vitamin D (VitD) receptor and the VitD-activating enzyme CYP27B1, permitting T cells to both activate and respond to VitD. VitD then initiated the transition from pro-inflammatory interferon-γ+ TH1 cells to suppressive interleukin-10+ cells. This process was primed by dynamic changes in the epigenetic landscape of CD4+ T cells, generating super-enhancers and recruiting several transcription factors, notably c-JUN, STAT3 and BACH2, which together with VitD receptor shaped the transcriptional response to VitD. Accordingly, VitD did not induce interleukin-10 expression in cells with dysfunctional BACH2 or STAT3. Bronchoalveolar lavage fluid CD4+ T cells of patients with COVID-19 were TH1-skewed and showed de-repression of genes downregulated by VitD, from either lack of substrate (VitD deficiency) and/or abnormal regulation of this system.
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