bioRxiv · 10.1101/2020.08.31.274589
Human T-bet governs innate and innate-like adaptive IFN-γ immunity against mycobacteria
Abstract
Inborn errors of human IFN-{gamma} immunity underlie mycobacterial disease. We report a patient with mycobacterial disease due to an inherited deficiency of the transcription factor T-bet. This deficiency abolishes the expression of T-bet target genes, including IFNG, by altering chromatin accessibility and DNA methylation in CD4+ T cells. The patient has profoundly diminished counts of mycobacterial-reactive circulating NK, invariant NKT (iNKT), mucosal-associated invariant T (MAIT), and V{delta}2+ {gamma}{delta} T lymphocytes, and of non-mycobacterial-reactive classic TH1 lymphocytes, the remainders of which also produce abnormally low amounts of IFN-{gamma}. Other IFN-{gamma}-producing lymphocyte subsets however develop normally, but with low levels of IFN-{gamma} production, with exception of V{delta}2- {gamma}{delta} T lymphocytes, which produce normal amounts of IFN-{gamma} in response to non-mycobacterial stimulation, and non-classic TH1 (TH1*) lymphocytes, which produce IFN-{gamma} normally in response to mycobacterial antigens. Human T-bet deficiency thus underlies mycobacterial disease by preventing the development of, and IFN-{gamma} production by, innate (NK) and innate-like adaptive lymphocytes (iNKT, MAIT, and V{delta}2+ {gamma}{delta} T cells), with mycobacterial-specific, IFN-{gamma}-producing, purely adaptive {beta} TH1* cells unable to compensate for this deficit.
Source connections
Explore related subjects
Keep this discovery
Explore connections, maps & timelines
Yang, R., Mele, F., Worley, L., Langlais, D., Rosain, J., Benhsaien, I., Elarabi, H., Croft, C. A., Doisne, J.-M., Zhang, P., Weisshaar, M., Jarrossay, D., Latorre, D., Shen, Y., Han, J., Gruber, C., Markle, J., Ali, F. A., Rahman, M., Khan, T., Seeleuthner, Y., Kerner, G., Husquin, L. T., Maclsaac, J., Jeljeli, M., Ailal, F., Kobor, M., Oleaga-Quintas, C., Roynard, M., Bourgey, M., Baghdadi, J. E., Boisson-Dupuis, S., Puel, A., Batteux, F., Rozenberg, F., Marr, N., Pan-Hammarstrom, Q., Bogunovic, D., Quintana-Murci, L., Carroll, T., Ma, C., Abel, L., Bousfiha, A., Di Santo, J., Glimcher, L. H. 2020-08-31. Human T-bet governs innate and innate-like adaptive IFN-γ immunity against mycobacteria. https://doi.org/10.1101/2020.08.31.274589
Cite the original work for its findings. Save a collection to share your selection of sources.