5-Fluorouracil targets thymidylate synthase in the selective suppression of TH17 cell differentiation

  • Juan Wang
  • , Liang Peng
  • , Ruihua Zhang
  • , Zihan Zheng
  • , Chun Chen
  • , Ka Lung Cheung
  • , Miao Cui
  • , Guanglin Bian
  • , Feihong Xu
  • , David Chiang
  • , Yuan Hu
  • , Ye Chen
  • , Geming Lu
  • , Jianjun Yang
  • , Hui Zhang
  • , Jianfei Yang
  • , Hongfa Zhu
  • , Shu Hsia Chen
  • , Kebin Liu
  • , Ming Ming Zhou
  • Andrew G. Sikora, Liwu Li, Bo Jiang, Huabao Xiong

Research output: Contribution to journalArticlepeer-review

Abstract

While it is well established that treatment of cancer patients with 5-Fluorouracil (5-FU) can result in immune suppression, the exact function of 5-FU in the modulation of immune cells has not been fully established. We found that low dose 5-FU selectively suppresses TH17 and TH1 cell differentiation without apparent effect on Treg, TH2, and significantly suppresses thymidylate synthase (TS) expression in TH17 and TH1 cells but has a lesser effect in tumor cells and macrophages. Interestingly, the basal expression of TS varies significantly between T helper phenotypes and knockdown of TS significantly impairs TH17 and TH1 cell differentiation without affecting the differentiation of either Treg or TH2 cells. Finally, low dose 5-FU is effective in ameliorating colitis development by suppressing TH17 and TH1 cell development in a T cell transfer colitis model. Taken together, the results highlight the importance of the anti-inflammatory functions of low dose 5-FU by selectively suppressing TH17 and TH1 immune responses.

Original languageEnglish (US)
Pages (from-to)19312-19326
Number of pages15
JournalOncotarget
Volume7
Issue number15
DOIs
StatePublished - Apr 12 2016

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

Keywords

  • 5-FU
  • Immune response
  • Immunity
  • Immunology and Microbiology Section
  • T17
  • TS

ASJC Scopus subject areas

  • Oncology

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