Taking out TB – A role for lysosomal ubiquitin-derived peptides

Tuberculosis remains a significant global health concern. The hallmark of Mycobacterium tuberculosis pathogenicity is its ability to infect resting macrophages and establish an intracellular niche. Activated and autophagic macrophages control mycobacterial infections through bactericidal mechanisms...

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Main Author: Georgiana ePurdy
Format: Article
Language:English
Published: Frontiers Media S.A. 2011-01-01
Series:Frontiers in Cellular and Infection Microbiology
Subjects:
Online Access:http://journal.frontiersin.org/Journal/10.3389/fmicb.2011.00007/full
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author Georgiana ePurdy
author_facet Georgiana ePurdy
author_sort Georgiana ePurdy
collection DOAJ
description Tuberculosis remains a significant global health concern. The hallmark of Mycobacterium tuberculosis pathogenicity is its ability to infect resting macrophages and establish an intracellular niche. Activated and autophagic macrophages control mycobacterial infections through bactericidal mechanisms ranging from reactive oxygen and nitrogen intermediates to the delivery of the bacterium to the acidified, hydrolytically active lysosome. The mycobactericidal activity of the lysosome is due in part to the action of ubiquitin-derived peptides (Ub-peptides). In this review we discuss the trafficking events that result in delivery M. tuberculosis to the lysosome, the source and lysosomal generation of Ub-peptides and their role in macrophage control of M. tuberculosis infection.
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spelling doaj.art-783a4602b5e94e3ca47f8868722030ab2022-12-22T01:52:48ZengFrontiers Media S.A.Frontiers in Cellular and Infection Microbiology2235-29882011-01-01210.3389/fmicb.2011.000079141Taking out TB – A role for lysosomal ubiquitin-derived peptidesGeorgiana ePurdy0Oregon Health and Sciences UniversityTuberculosis remains a significant global health concern. The hallmark of Mycobacterium tuberculosis pathogenicity is its ability to infect resting macrophages and establish an intracellular niche. Activated and autophagic macrophages control mycobacterial infections through bactericidal mechanisms ranging from reactive oxygen and nitrogen intermediates to the delivery of the bacterium to the acidified, hydrolytically active lysosome. The mycobactericidal activity of the lysosome is due in part to the action of ubiquitin-derived peptides (Ub-peptides). In this review we discuss the trafficking events that result in delivery M. tuberculosis to the lysosome, the source and lysosomal generation of Ub-peptides and their role in macrophage control of M. tuberculosis infection.http://journal.frontiersin.org/Journal/10.3389/fmicb.2011.00007/fullAutophagyMycobacteriumTuberculosisUbiquitinLysosomeUb-peptides
spellingShingle Georgiana ePurdy
Taking out TB – A role for lysosomal ubiquitin-derived peptides
Frontiers in Cellular and Infection Microbiology
Autophagy
Mycobacterium
Tuberculosis
Ubiquitin
Lysosome
Ub-peptides
title Taking out TB – A role for lysosomal ubiquitin-derived peptides
title_full Taking out TB – A role for lysosomal ubiquitin-derived peptides
title_fullStr Taking out TB – A role for lysosomal ubiquitin-derived peptides
title_full_unstemmed Taking out TB – A role for lysosomal ubiquitin-derived peptides
title_short Taking out TB – A role for lysosomal ubiquitin-derived peptides
title_sort taking out tb a role for lysosomal ubiquitin derived peptides
topic Autophagy
Mycobacterium
Tuberculosis
Ubiquitin
Lysosome
Ub-peptides
url http://journal.frontiersin.org/Journal/10.3389/fmicb.2011.00007/full
work_keys_str_mv AT georgianaepurdy takingouttbaroleforlysosomalubiquitinderivedpeptides