GLM, a novel luteolin derivative, attenuates inflammatory responses in dendritic cells: Therapeutic potential against ulcerative colitis.

Abstract:

:GLM, a luteolin derivative, shows anti-melanogenic effect via regulation of various signal molecules; however, it is unclear whether it also exerts anti-inflammatory effect. This study investigated the mechanisms of the anti-inflammatory effect of GLM on activated dendritic cells (DCs) to elucidate its therapeutic potential for ulcerative colitis. The anti-inflammatory effect of GLM was firstly investigated based on its effect on DCs maturation and T cells proliferation/activation. GLM treatment downregulated pro-inflammatory cytokine productions, surface molecule expression, and antigen-presenting ability for MHC-II complex in LPS-activated DCs. Importantly, anti-inflammatory effect induced by GLM treatment were independent of MAPK/NF-κB signaling pathways. Furthermore, DCs that were co-treated with LPS and GLM impaired the proliferation and activation of naïve CD4+ T cells. Interestingly, GLM exerted in vivo protective effect in DSS-induced colitis models by decreasing Th1, Th2, and Th17 cells and myeloperoxidase (MPO) levels, as well as restoring body weight, disease activity, and DSS-induced pathology. Based on these results, GLM was shown to be a potential candidate treatment for ulcerative colitis.

authors

Kim WS,Song HY,Han JM,Byun EB

doi

10.1016/j.bbrc.2019.08.012

subject

Has Abstract

pub_date

2019-10-08 00:00:00

pages

87-93

issue

1

eissn

0006-291X

issn

1090-2104

pii

S0006-291X(19)31514-1

journal_volume

518

pub_type

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