AUTHOR=Vacca Maurizio , Böhme Julia , Zambetti Lia Paola , Khameneh Hanif Javanmard , Paleja Bhairav S. , Laudisi Federica , Ho Adrian W. S. , Neo Kurt , Leong Keith Weng Kit , Marzuki Mardiana , Lee Bernett , Poidinger Michael , Santambrogio Laura , Tsenova Liana , Zolezzi Francesca , De Libero Gennaro , Singhal Amit , Mortellaro Alessandra 

TITLE=NLRP10 Enhances CD4+ T-Cell-Mediated IFNγ Response via Regulation of Dendritic Cell-Derived IL-12 Release

JOURNAL=Frontiers in Immunology

VOLUME=Volume 8 - 2017

YEAR=2017

URL=https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2017.01462

DOI=10.3389/fimmu.2017.01462

ISSN=1664-3224

ABSTRACT=NLRP10 is a NOD-like receptor that functions as an intracellular pattern-recognition receptor for microbial and non-microbial products. Here, we generated a Nlrp10-/- mouse to delineate the role of NLRP10 in the host immune response and found that Nlrp10-/- dendritic cells (DCs) elicited sub-optimal IFNg production by antigen-specific CD4+ T cells compared to wild-type (WT) DCs. In response to T-cell encounter, CD40 ligation or Toll-like receptor (TLR) 9 stimulation, Nlrp10-/- DCs produced low levels of IL-12, due to a substantial decrease in NF-kB activation. Defective IL-12 production was also evident in vivo and affected IFNg production by CD4+ T cells. Upon Mycobacterium tuberculosis infection, Nlrp10-/- mice displayed diminished T helper 1-cell responses and increased bacterial growth compared to WT mice. These data indicate that NLRP10-mediated IL-12 production by DCs is critical for IFNg induction in T cells and contributes to promote the host defense against Mycobacterium tuberculosis.