A role of eosinophils in mediating the anti-tumour effect of cryo-thermal treatment

Sci Rep. 2019 Sep 13;9(1):13214. doi: 10.1038/s41598-019-49734-5.

Abstract

Previous, we established a novel therapeutic approach to tumour of cryo-thermal therapy, which can induce durable anti-tumour memory immunity mediated by CD4+ T cell, and contribute to prolonged survival in B16F10 murine melanoma model and 4T1 murine mammary carcinoma. It has become apparent that innate immune cells are involved in the regulation of adaptive T cell immunity. Our previous studies revealed that cryo-thermal therapy induced M1 macrophage polarization and DCs maturation were required for the shaping of systemic long-lived T cell mediated anti-tumour memory immunity. Eosinophils are multifunctional innate effector cells and there is lack of knowledge on the role of eosinophils in cryo-thermal-induced anti-tumour immunity. This study revealed that cryo-thermal therapy activated eosinophils in spleen at early stage following the treatment. Furthermore, cryo-thermal-activated eosinophils exerted versatile immunologic regulation from innate immunity to anti-tumour adaptive immunity, such as M1 macrophage polarization, DCs maturation, differentiation of CD4-CTL subtypes and enhanced cytotoxicity of CD8+ T cells. Our study indicated that the cryo-thermal-activated eosinophils was essential for the shaping of durable anti-tumour memory immunity. Thus, our results present a new concept for eosinophils mediated anti-tumour immunity after cryo-thermal therapy.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • CD4-Positive T-Lymphocytes / immunology
  • CD8-Positive T-Lymphocytes / immunology
  • Cell Differentiation
  • Chemokines / genetics
  • Cryotherapy / methods*
  • Cytokines / genetics
  • Dendritic Cells / drug effects
  • Dendritic Cells / immunology
  • Eosinophils / immunology*
  • Eosinophils / pathology
  • Female
  • Gene Expression Regulation, Neoplastic / immunology
  • Interferon-gamma / isolation & purification
  • Interferon-gamma / pharmacology
  • Interleukin-4 / isolation & purification
  • Interleukin-4 / pharmacology
  • Macrophages / pathology
  • Melanoma, Experimental / immunology*
  • Melanoma, Experimental / pathology
  • Melanoma, Experimental / therapy*
  • Mice, Inbred C57BL

Substances

  • Chemokines
  • Cytokines
  • Interleukin-4
  • Interferon-gamma