The GSK3β-β-catenin-TCF1 Pathway Improves Naive T Cell Activation in Old Adults by Upregulating MiR-181a
Overview
Affiliations
MicroRNAs play an important role in the regulation of T cell development, activation, and differentiation. One of the most abundant microRNAs in lymphocytes is miR-181a, which controls T cell receptor (TCR) activation thresholds in thymic selection as well as in peripheral T cell responses. We previously found that miR-181a levels decline in T cells in the elderly. In this study, we identified TCF1 as a transcriptional regulator of pri-miR-181a. A decline in TCF1 levels in old individuals accounted for the reduced miR-181a expression impairing TCR signaling. Inhibition of GSK3ß restored expression of miR-181a by inducing TCF1 in T cells from old adults. GSK3ß inhibition enhanced TCR signaling to increase downstream expression of activation markers and production of IL-2. The effect involved the upregulation of miR-181a and the inhibition of DUSP6 expression. Thus, inhibition of GSK3ß can restore responses of old T cells by inducing miR-181a expression through TCF1.
The functions of immune system-derived miRNAs in cardiovascular diseases.
Sufianov A, Agaverdiev M, Mashkin A, Ilyasova T Noncoding RNA Res. 2024; 11:91-103.
PMID: 39736852 PMC: 11683256. DOI: 10.1016/j.ncrna.2024.11.004.
T cell fate decisions during memory cell generation with aging.
Sturmlechner I, Jain A, Mu Y, Weyand C, Goronzy J Semin Immunol. 2023; 69:101800.
PMID: 37494738 PMC: 10528238. DOI: 10.1016/j.smim.2023.101800.
Understanding T cell aging to improve anti-viral immunity.
Zhang H, Weyand C, Goronzy J, Gustafson C Curr Opin Virol. 2021; 51:127-133.
PMID: 34688983 PMC: 8643327. DOI: 10.1016/j.coviro.2021.09.017.
Giordani C, Silvestrini A, Giuliani A, Olivieri F, Rippo M Front Physiol. 2021; 12:734976.
PMID: 34566699 PMC: 8458936. DOI: 10.3389/fphys.2021.734976.
Human Wnt/β-Catenin Regulates Alloimmune Signaling during Allogeneic Transplantation.
Mammadli M, Harris R, Mahmudlu S, Verma A, May A, Dhawan R Cancers (Basel). 2021; 13(15).
PMID: 34359702 PMC: 8345079. DOI: 10.3390/cancers13153798.