Itaconate inhibits TET DNA dioxygenases to dampen inflammatory responses

LL Chen, C Morcelle, ZL Cheng, X Chen, Y Xu… - Nature cell …, 2022 - nature.com
As one of the most induced genes in activated macrophages, immune-responsive gene 1
(IRG1) encodes a mitochondrial metabolic enzyme catalysing the production of itaconic acid …

Tet2 promotes pathogen infection-induced myelopoiesis through mRNA oxidation

Q Shen, Q Zhang, Y Shi, Q Shi, Y Jiang, Y Gu, Z Li, X Li… - Nature, 2018 - nature.com
Varieties of RNA modification form the epitranscriptome for post-transcriptional regulation. 5-
Methylcytosine (5-mC) is a sparse RNA modification in messenger RNA (mRNA) under …

[HTML][HTML] Acute loss of TET function results in aggressive myeloid cancer in mice

J An, E González-Avalos, A Chawla, M Jeong… - Nature …, 2015 - nature.com
TET-family dioxygenases oxidize 5-methylcytosine (5mC) in DNA, and exert tumour
suppressor activity in many types of cancers. Even in the absence of TET coding region …

Targeting IRG1 reverses the immunosuppressive function of tumor-associated macrophages and enhances cancer immunotherapy

YJ Chen, GN Li, XJ Li, LX Wei, MJ Fu, ZL Cheng… - Science …, 2023 - science.org
Immune-responsive gene 1 (IRG1) encodes aconitate decarboxylase (ACOD1) that
catalyzes the production of itaconic acids (ITAs). The anti-inflammatory function of IRG1/ITA …

Comparative evaluation of itaconate and its derivatives reveals divergent inflammasome and type I interferon regulation in macrophages

A Swain, M Bambouskova, H Kim, PS Andhey… - Nature …, 2020 - nature.com
Following activation, macrophages undergo extensive metabolic rewiring,. Production of
itaconate through the inducible enzyme IRG1 is a key hallmark of this process. Itaconate …

Tet2 is required to resolve inflammation by recruiting Hdac2 to specifically repress IL-6

Q Zhang, K Zhao, Q Shen, Y Han, Y Gu, X Li, D Zhao… - Nature, 2015 - nature.com
Epigenetic modifiers have fundamental roles in defining unique cellular identity through the
establishment and maintenance of lineage-specific chromatin and methylation status …

[HTML][HTML] TET2 regulates mast cell differentiation and proliferation through catalytic and non-catalytic activities

S Montagner, C Leoni, S Emming, G Della Chiara… - Cell reports, 2016 - cell.com
Dioxygenases of the TET family impact genome functions by converting 5-methylcytosine
(5mC) in DNA to 5-hydroxymethylcytosine (5hmC). Here, we identified TET2 as a crucial …

[HTML][HTML] The methylcytosine dioxygenase Tet2 promotes DNA demethylation and activation of cytokine gene expression in T cells

K Ichiyama, T Chen, X Wang, X Yan, BS Kim, S Tanaka… - Immunity, 2015 - cell.com
Epigenetic regulation of lineage-specific genes is important for the differentiation and
function of T cells. Ten-eleven translocation (Tet) proteins catalyze 5-methylcytosine (5mC) …

[HTML][HTML] Cellular pyrimidine imbalance triggers mitochondrial DNA–dependent innate immunity

HG Sprenger, T MacVicar, A Bahat, KU Fiedler… - Nature …, 2021 - nature.com
Cytosolic mitochondrial DNA (mtDNA) elicits a type I interferon response, but signals
triggering the release of mtDNA from mitochondria remain enigmatic. Here, we show that …

Itaconate: an emerging determinant of inflammation in activated macrophages

XH Yu, DW Zhang, XL Zheng… - Immunology and cell …, 2019 - Wiley Online Library
Macrophages play a central role in innate immunity as the first line of defense against
pathogen infection. Upon exposure to inflammatory stimuli, macrophages rapidly respond …