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Erschienen in: Inflammation 4/2018

18.04.2018 | ORIGINAL ARTICLE

ERK1/2 and the Bcl-2 Family Proteins Mcl-1, tBid, and Bim Are Involved in Inhibition of Apoptosis During Persistent Chlamydia psittaci Infection

verfasst von: Li Li, Chuan Wang, Yating Wen, Yuming Hu, Yafeng Xie, Man Xu, Mingxing Liang, Wei Liu, Liangzhuan Liu, Yimou Wu

Erschienen in: Inflammation | Ausgabe 4/2018

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Abstract

Chlamydia psittaci is an obligate intracellular pathogen that can cause zoonosis. Persistent C. psittaci infection can inhibit apoptosis in host cells, thus extending their survival and enabling them to complete their growth cycle. In this study, the antiapoptotic effects of persistent C. psittaci infection, induced by treatment with IFN-γ, were found to be associated with both the death receptor and the mitochondrial pathways of apoptosis. These effects were mediated by Bcl-2 family members, as evidenced by the decreased expression of proapoptotic proteins, such as tBid and Bim. Simultaneously, the antiapoptotic protein Mcl-1 was upregulated by persistent C. psittaci infection. Increased phosphorylation of ERK1/2 was observed; however, the expression of Bad, unlike that of other proapoptotic proteins, did not seem to be involved in this process. In summary, persistent chlamydial infection exerts antiapoptotic effects through both the death receptor and the mitochondrial pathways, in a process that is regulated by the ERK1/2 and apoptotic proteins of the Bcl-2 family.
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Metadaten
Titel
ERK1/2 and the Bcl-2 Family Proteins Mcl-1, tBid, and Bim Are Involved in Inhibition of Apoptosis During Persistent Chlamydia psittaci Infection
verfasst von
Li Li
Chuan Wang
Yating Wen
Yuming Hu
Yafeng Xie
Man Xu
Mingxing Liang
Wei Liu
Liangzhuan Liu
Yimou Wu
Publikationsdatum
18.04.2018
Verlag
Springer US
Erschienen in
Inflammation / Ausgabe 4/2018
Print ISSN: 0360-3997
Elektronische ISSN: 1573-2576
DOI
https://doi.org/10.1007/s10753-018-0785-8

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