High-avidity antitumor T-cell generation by toll receptor 8-primed, myeloid- derived dendritic cells is mediated by IL-12 production

Shuwen Xu, Ursula Koldovsky, Min Xu, Daniel Wang, Elizabeth Fitzpatrick, Gil Soo Son, Gary Koski, Brian J. Czerniecki

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

Background: High-level production of heterodimeric p70 interleukin (IL)-12 by myeloid-derived dendritic cells (DCs) requires 2 signals: interferon gamma (IFN-γ) and a maturation signal provided by CD40 ligation (CD40L) or lipopolysaccharide (LPS). Methods: In the current study we demonstrate that signaling through toll-like receptor (TLR) 8, but not TLR3, TLR2, or TLR4, provides a priming signal to myeloid-derived DC for high IL-12 p70 heterodimer production. Results: All the TLR agonists induced maturation of DC as evidenced by increased expression of CD83, CD80, and CD86. Both IFN-γ and TLR7/8 agonist R848 increased expression of TLR8 in immature monocyte-derived DCs. The combination of TLR7/8 agonist R848 and maturation signals LPS or CD40L induced high-level expression of IL-12p35 and p40 similar to that induced by IFN-γ plus LPS. In contrast, receptor agonists specific for TLR7 did not prime for IL-12 production. The p70 IL-12 produced by the TLR8-primed DC polarized CD4+ T for Th1 cytokine production and induced CD8+ T cells, displaying high functional avidity with enhanced tumor cell recognition. Conclusions: The data suggest that toll 8 receptor agonists are useful for inducing type-1 polarized DCs for vaccine design in treating cancer and infectious disease.

Original languageEnglish
Pages (from-to)170-178
Number of pages9
JournalSurgery
Volume140
Issue number2
DOIs
Publication statusPublished - 2006 Aug 1
Externally publishedYes

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Interleukin-12
Dendritic Cells
T-Lymphocytes
resiquimod
Interferon-gamma
Lipopolysaccharides
Ligation
Toll-Like Receptor 8
Toll-Like Receptors
Interleukins
Communicable Diseases
Monocytes
Neoplasms
Vaccines
Cytokines

ASJC Scopus subject areas

  • Surgery

Cite this

High-avidity antitumor T-cell generation by toll receptor 8-primed, myeloid- derived dendritic cells is mediated by IL-12 production. / Xu, Shuwen; Koldovsky, Ursula; Xu, Min; Wang, Daniel; Fitzpatrick, Elizabeth; Son, Gil Soo; Koski, Gary; Czerniecki, Brian J.

In: Surgery, Vol. 140, No. 2, 01.08.2006, p. 170-178.

Research output: Contribution to journalArticle

Xu, Shuwen ; Koldovsky, Ursula ; Xu, Min ; Wang, Daniel ; Fitzpatrick, Elizabeth ; Son, Gil Soo ; Koski, Gary ; Czerniecki, Brian J. / High-avidity antitumor T-cell generation by toll receptor 8-primed, myeloid- derived dendritic cells is mediated by IL-12 production. In: Surgery. 2006 ; Vol. 140, No. 2. pp. 170-178.
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AU - Son, Gil Soo

AU - Koski, Gary

AU - Czerniecki, Brian J.

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