A cycle involving HMGB1, IFN-γ and dendritic cells plays a putative role in anti-tumor immunity

Qun Gao, Feng Li, Shumin Wang, Z. Shen, Shaoyan Cheng, Yu Ping, Guohui Qin, Xinfeng Chen, Li Yang, Ling Cao, Shasha Liu, Bin Zhang, Liping Wang, Yan Sun, Yi Zhang*

*Corresponding author for this work

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

An important subset in regulating antitumor immunity is the maturation and accumulation of intratumor dendritic cells (DCs), inducing potent T cell cytotoxicity. In this study, we explored how the soluble abundant high-mobility group box 1 protein (HMGB1) affected DC activation and retention within lung cancers, and in which way the resultant interferon-γ (IFN-γ) further enhanced DC maturation and accumulation. It was discovered that HMGB1 was correlated with DC markers HLA-DR and CD86 in lung cancers at both mRNA and protein level. Further analyses showed HMGB1 enhanced the maturation of DCs, indicated by upregulated IFN-γ in CD8+ T cells. Additionally, HMGB1 increased the accumulation of DCs by promoting CCR5 and CXCR3 production. Moreover, the resultant IFN-γ elevated the levels of HMGB1 and DC-associated chemokines, CCL5, CXCL10 and CXCL11 in tumor cells. Hence, the HMGB1-IFN-γ cycle may represent an important mechanism underlying DC-mediated anti-tumor immune response.

Original languageEnglish (US)
Article number103850
JournalCellular Immunology
Volume343
DOIs
StatePublished - Sep 2019

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Keywords

  • CCL5
  • CCR5
  • CXCL10
  • CXCL11
  • CXCR3
  • Cytotoxic T lymphocyte
  • Dendritic cell
  • High-mobility group box 1
  • Interferon-γ

ASJC Scopus subject areas

  • Immunology

Cite this

Gao, Q., Li, F., Wang, S., Shen, Z., Cheng, S., Ping, Y., Qin, G., Chen, X., Yang, L., Cao, L., Liu, S., Zhang, B., Wang, L., Sun, Y., & Zhang, Y. (2019). A cycle involving HMGB1, IFN-γ and dendritic cells plays a putative role in anti-tumor immunity. Cellular Immunology, 343, [103850]. https://doi.org/10.1016/j.cellimm.2018.08.011