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不同培养条件下感染 spp. 的巨噬细胞中的 DNA 甲基化

DNA Methylation in macrophages infected with spp. in different culture conditions.

作者信息

Loi Eleonora, Barroso Paola Andrea, Moya Alvarez Agustín, Zavattari Patrizia, Vega Benedetti Ana Florencia

机构信息

Department of Biomedical Sciences, Unit of Biology and Genetics, University of Cagliari, Cagliari, Italy.

Institute of Experimental Pathology Dr. Miguel Ángel Basombrío - CONICET, University of Salta, Salta, Argentina.

出版信息

Emerg Microbes Infect. 2025 Dec;14(1):2508766. doi: 10.1080/22221751.2025.2508766. Epub 2025 Jun 9.


DOI:10.1080/22221751.2025.2508766
PMID:40396886
Abstract

modulate the host cell epigenome, including DNA methylation. This work aimed to explore the DNA methylation pattern in infected macrophages with , and . We performed a genome-wide methylation analysis in macrophages, cultured in presence/absence of interleukin 6 (IL-6) and infected with the three species for a period of 72hs. Upon 72hs infection, sample groups of - and -infected macrophages were treated with Glucantime and Amphotericin B for 48hs, respectively. Uninfected macrophages and macrophages treated with heat-killed were included as controls. Several CpG islands alterations were identified upon infection and among species. The methylome analysis showed that and clustered together separately from . The identified alterations were mainly associated with cytoskeleton organization. We also detected that the DNA methylation pattern of ten, six and eight CGIs for each aforementioned species slightly changed in a culture environment with IL-6, whereas treatment led to distinct DNA methylation profiles respect to untreated samples. Interestingly, some altered CGIs showed a re-establishment towards the control methylation pattern in (69%, 11 out of 16) and (36%, 4 out of 11). The identified alterations suggest a species-specific parasite/host interaction probably leading to gene expression regulation. The discovery of these methylation alterations addresses further functional studies and suggests them as potential therapeutic targets.

摘要

调节宿主细胞表观基因组,包括DNA甲基化。这项工作旨在探索感染了[具体物种1]、[具体物种2]和[具体物种3]的巨噬细胞中的DNA甲基化模式。我们在存在/不存在白细胞介素6(IL-6)的情况下培养巨噬细胞,并让其感染这三种物种72小时,然后进行全基因组甲基化分析。在感染72小时后,分别用葡糖胺和两性霉素B处理感染了[具体物种1]和[具体物种2]的巨噬细胞样本组48小时。未感染的巨噬细胞和用热灭活的[具体物种]处理的巨噬细胞作为对照。在感染后以及不同物种之间发现了几个CpG岛的改变。甲基化组分析表明,[具体物种1]和[具体物种2]聚在一起,与[具体物种3]分开。所确定的改变主要与细胞骨架组织有关。我们还检测到,在有IL-6的培养环境中,上述每种物种的十个、六个和八个CGI的DNA甲基化模式略有变化,而处理导致与未处理样本相比有明显不同的DNA甲基化谱。有趣的是,一些改变的CGI在[具体物种1](69%,16个中的11个)和[具体物种2](36%,11个中的4个)中显示出向对照甲基化模式的重新建立。所确定的改变表明可能存在物种特异性的寄生虫/宿主相互作用,可能导致基因表达调控。这些甲基化改变的发现为进一步的功能研究提供了方向,并表明它们作为潜在的治疗靶点。

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本文引用的文献

[1]
Leishmania highjack host lipid body for its proliferation in macrophages by overexpressing host Rab18 and TRAPPC9 by downregulating miR-1914-3p expression.

PLoS Pathog. 2024-2

[2]
Epigenetic regulation as a therapeutic target in the malaria parasite Plasmodium falciparum.

Malar J. 2024-2-12

[3]
infection alters macrophage and dendritic cell migration in a three-dimensional environment.

Front Cell Dev Biol. 2023-7-28

[4]
Src- and Abl-family kinases activate spleen tyrosine kinase to maximize phagocytosis and Leishmania infection.

J Cell Sci. 2023-7-15

[5]
Comparative transcriptomic analysis of long noncoding RNAs in -infected human macrophages.

Front Genet. 2023-1-4

[6]
DNA methylation alterations caused by infection may generate a microenvironment prone to tumour development.

Front Cell Infect Microbiol. 2022

[7]
DAVID: a web server for functional enrichment analysis and functional annotation of gene lists (2021 update).

Nucleic Acids Res. 2022-7-5

[8]
DNA methylation changes during long-term in vitro cell culture are caused by epigenetic drift.

Commun Biol. 2021-5-19

[9]
HLA-DRB1 Alleles Associated with Lower Leishmaniasis Susceptibility Share Common Amino Acid Polymorphisms and Epitope Binding Repertoires.

Vaccines (Basel). 2021-3-17

[10]
Unravelling the unsolved paradoxes of cytokine families in host resistance and susceptibility to infection.

Cytokine X. 2020-12

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