The multifaceted Foxp3fgfp allele enhances spontaneous and therapeutic immune surveillance of cancer in mice.

Abstract:

:It is well established that therapeutic impairment of Foxp3+ Treg in mice and humans favors immune rejection of solid tumors. Less explored is the impact Foxp3 allelic variants may have on tumor incidence, progression and therapy. In this work, we tested and demonstrate that the Foxp3fgfp reporter allele, found previously to either enhance or reduce Treg function in specific autoimmunity settings, confers increased anti-tumor immunity. Our conclusions stem out of the analysis of three tumor models of different tissue origin, in two murine genetic backgrounds. When compared to wild type animals, mice carrying the Foxp3fgfp allele spontaneously delay, reduce or prevent primary tumor growth, decrease metastasis growth, and potentiate the response to anti-CTLA4 monotherapy. These findings suggest allelic variances at the Foxp3 locus may serve as predictive indicators for personalized therapy and prognostics, and point at possible new therapeutic targets.

journal_name

Eur J Immunol

authors

Almeida-Santos J,Bergman ML,Amendoeira Cabral I,Correia V,Caramalho Í,Demengeot J

doi

10.1002/eji.201948251

subject

Has Abstract

pub_date

2020-03-01 00:00:00

pages

439-444

issue

3

eissn

0014-2980

issn

1521-4141

journal_volume

50

pub_type

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