Post-transcriptional Regulation

Gene Control ◽  
2018 ◽  
pp. 201-242
Author(s):  
David S. Latchman
Diabetes ◽  
2019 ◽  
Vol 68 (Supplement 1) ◽  
pp. 43-OR
Author(s):  
DINA MOSTAFA ◽  
AKINORI TAKAHASHI ◽  
TADASHI YAMAMOTO

Oncogene ◽  
1997 ◽  
Vol 15 (1) ◽  
pp. 29-43 ◽  
Author(s):  
Eric Cabannes ◽  
Marie-France Vives ◽  
Pierre-André Bédard

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Yingpeng Yao ◽  
Ying Yang ◽  
Wenhui Guo ◽  
Lifan Xu ◽  
Menghao You ◽  
...  

AbstractT follicular helper (TFH) cells are specialized effector CD4+ T cells critical to humoral immunity. Whether post-transcriptional regulation has a function in TFH cells is unknown. Here, we show conditional deletion of METTL3 (a methyltransferase catalyzing mRNA N6-methyladenosine (m6A) modification) in CD4+ T cells impairs TFH differentiation and germinal center responses in a cell-intrinsic manner in mice. METTL3 is necessary for expression of important TFH signature genes, including Tcf7, Bcl6, Icos and Cxcr5 and these effects depend on intact methyltransferase activity. m6A-miCLIP-seq shows the 3′ UTR of Tcf7 mRNA is subjected to METTL3-dependent m6A modification. Loss of METTL3 or mutation of the Tcf7 3′ UTR m6A site results in accelerated decay of Tcf7 transcripts. Importantly, ectopic expression of TCF-1 (encoded by Tcf7) rectifies TFH defects owing to METTL3 deficiency. Our findings indicate that METTL3 stabilizes Tcf7 transcripts via m6A modification to ensure activation of a TFH transcriptional program, indicating a pivotal function of post-transcriptional regulation in promoting TFH cell differentiation.


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