Browsing by Author "Tomai, Mark"

Now showing 1 - 1 of 1
  • Thumbnail Image
    Item
    A molecular atlas of innate immunity to adjuvanted and live attenuated vaccines, in mice
    (Springer Nature, 2022-01-27) Lee, Audrey; Scott, Madeleine K.D.; Wimmers, Florian; Arunachalam, Prabhu S.; Luo, Wei; Fox, Christopher B.; Tomai, Mark; Khatri, Purvesh; Pulendran, Bali; Microbiology and Immunology, School of Medicine
    Adjuvants hold great potential in enhancing vaccine efficacy, making the understanding and improving of adjuvants critical goals in vaccinology. The TLR7/8 agonist, 3M-052, induces long-lived humoral immunity in non-human primates and is currently being evaluated in human clinical trials. However, the innate mechanisms of 3M-052 have not been fully characterized. Here, we perform flow cytometry, single cell RNA-seq and ATAC-seq to profile the kinetics, transcriptomics and epigenomics of innate immune cells in murine draining lymph nodes following 3M-052-Alum/Ovalbumin immunization. We find that 3M-052-Alum/OVA induces a robust antiviral and interferon gene program, similar to the yellow fever vaccine, which is known to confer long-lasting protection. Activation of myeloid cells in dLNs persists through day 28 and single cell analysis reveals putative TF-gene regulatory programs in distinct myeloid cells and heterogeneity of monocytes. This study provides a comprehensive characterization of the transcriptomics and epigenomics of innate populations in the dLNs after vaccination.