Toxoplasma gondii Infection Inhibits Histone Crotonylation to Regulate Immune Response of Porcine Alveolar Macrophages
( ) is an obligate intracellular parasite that can infect almost all warm-blooded animals, causing serious public health problems. Lysine crotonylation (Kcr) is a newly discovered posttranslational modification (PTM), which is first identified on histones and has been proved relevant to procreation...
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Published in | Frontiers in immunology Vol. 12; p. 696061 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
Switzerland
Frontiers Media S.A
08.07.2021
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Subjects | |
Online Access | Get full text |
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Summary: | (
) is an obligate intracellular parasite that can infect almost all warm-blooded animals, causing serious public health problems. Lysine crotonylation (Kcr) is a newly discovered posttranslational modification (PTM), which is first identified on histones and has been proved relevant to procreation regulation, transcription activation, and cell signaling pathway. However, the biological functions of histone crotonylation have not yet been reported in macrophages infected with
. As a result, a total of 1,286 Kcr sites distributed in 414 proteins were identified and quantified, demonstrating the existence of crotonylation in porcine alveolar macrophages. According to our results, identified histones were overall downregulated. HDAC2, a histone decrotonylase, was found to be significantly increased, which might be the executor of histone Kcr after parasite infection. In addition,
infection inhibited the crotonylation of H2B on K12, contributing on the suppression of epigenetic regulation and NF-
B activation. Nevertheless, the reduction of histone crotonylation induced by parasite infection could promote macrophage proliferation
activating PI3K/Akt signaling pathway. The present findings point to a comprehensive understanding of the biological functions of histone crotonylation in porcine alveolar macrophages, thereby providing a certain research basis for the mechanism research on the immune response of host cells against
infection. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 This article was submitted to Microbial Immunology, a section of the journal Frontiers in Immunology Reviewed by: Ulisses Gazos Lopes, Federal University of Rio de Janeiro, Brazil; Jian Huang, Coriell Institute For Medical Research, United States Edited by: Wanderley De Souza, Federal University of Rio de Janeiro, Brazil |
ISSN: | 1664-3224 1664-3224 |
DOI: | 10.3389/fimmu.2021.696061 |