IL32γ activates natural killer receptor-expressing innate immune cells to produce IFNγ via dendritic cell-derived IL12

Sung Won Lee, Hyun Jung Park, Kwang Soo Lee, Se-Ho Park, Soohyun Kim, Sung Ho Jeon, Seokmann Hong

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The inflammatory cytokine IL32γ acts on dendritic cells (DCs) to produce IL12 and IL6, which are involved in the differentiation of Th1 and Th17 cells. Natural killer (NK) and NKT cells play important roles in IL12-mediated adaptive immune responses, such as antitumor immunity. Herein we demonstrate the effect of IL32γ on the activation of NK and NKT cells. Upon IL32γ stimulation, splenic NK and NKT cells could be activated, and this activation was dependent on both IL12 and DCs, which was confirmed by using IL12p35 knockout and CD11c-diphtheria toxin receptor transgenic mouse models. Furthermore, IL32γ could induce the production of proinflammatory cytokines by NKDCs, a subset of DCs expressing NK cell markers, known to enhance NKT cell function. Unlike conventional DCs, NKDCs produced IFNγ and TNFα rather than IL12 upon stimulation with IL32γ. Taken together, IL32γ will be useful as an adjuvant to boost the cytotoxicities of NK and NKT cells that play critical roles in antitumor immunity.

Original languageEnglish
Pages (from-to)86-94
Number of pages9
JournalBiochemical and Biophysical Research Communications
Volume461
Issue number1
DOIs
Publication statusPublished - 2015 May 22

Fingerprint

Natural Killer T-Cells
Interleukin-12
Natural Killer Cells
Dendritic Cells
Chemical activation
Cytokines
Immunity
Cytotoxicity
Th17 Cells
Th1 Cells
Adaptive Immunity
Interleukin-6
Transgenic Mice

Keywords

  • IFNγ
  • IL12
  • IL32γ
  • NK
  • NKDC
  • NKT

ASJC Scopus subject areas

  • Biochemistry
  • Biophysics
  • Cell Biology
  • Molecular Biology
  • Medicine(all)

Cite this

IL32γ activates natural killer receptor-expressing innate immune cells to produce IFNγ via dendritic cell-derived IL12. / Lee, Sung Won; Park, Hyun Jung; Lee, Kwang Soo; Park, Se-Ho; Kim, Soohyun; Jeon, Sung Ho; Hong, Seokmann.

In: Biochemical and Biophysical Research Communications, Vol. 461, No. 1, 22.05.2015, p. 86-94.

Research output: Contribution to journalArticle

Lee, Sung Won ; Park, Hyun Jung ; Lee, Kwang Soo ; Park, Se-Ho ; Kim, Soohyun ; Jeon, Sung Ho ; Hong, Seokmann. / IL32γ activates natural killer receptor-expressing innate immune cells to produce IFNγ via dendritic cell-derived IL12. In: Biochemical and Biophysical Research Communications. 2015 ; Vol. 461, No. 1. pp. 86-94.
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