Nucleotide oligomerization binding domain-like receptor signaling enhances dendritic cell-mediated cross-priming in vivo

Jumpei Asano, Hiroyuki Tada, Nobuyuki Onai, Taku Sato, Yasuo Horie, Yukari Fujimoto, Koichi Fukase, Akira Suzuki, Tak W. Mak, Toshiaki Ohteki

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Abstract

Nucleotide oligomerization binding domain (Nod)-like receptors are critical cytosolic sensors for the recognition of bacterial peptidoglycan. However, their role in the induction of dendritic cell (DC)-mediated cross-priming remains unclear. In this study, we demonstrate that injecting ligands for Nod1 and Nod2 along with Ag into wild-type mice significantly enhanced the cross-priming of Agspecific CD8+ T cells by CD8α+ DCs, as assessed from the expansion of IFN-γ+ CD8+ T cells, CTL activity against Ag-pulsed targets, and the rejection of transplanted tumors expressing the cognate Ag. The enhancement of CD8α+ DC-mediated cross-priming was likely due to the upregulation of Ag cross-presentation and of costimulatory molecules. Our findings collectively indicate that Nod1/2 signaling is critical for the optimal induction of DC cross-priming in vivo, which may offer an alternative therapeutic pathway in cancer and hosts refractory to TLR signals or paralyzed by viral evasion strategy.

Original languageEnglish
Pages (from-to)736-745
Number of pages10
JournalJournal of Immunology
Volume184
Issue number2
DOIs
Publication statusPublished - 2010 Jan 15

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ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology

Cite this

Asano, J., Tada, H., Onai, N., Sato, T., Horie, Y., Fujimoto, Y., Fukase, K., Suzuki, A., Mak, T. W., & Ohteki, T. (2010). Nucleotide oligomerization binding domain-like receptor signaling enhances dendritic cell-mediated cross-priming in vivo. Journal of Immunology, 184(2), 736-745. https://doi.org/10.4049/jimmunol.0900726