ArticleCommunications biology2024
Mycobacterium marinum MMAR_0267-regulated copper utilization facilitates bacterial escape from phagolysosome.
Article in Communications biology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
7 citing papers in PubMed.
- A copper uptake ABC transport system is essential forEmerging microbes & infections · 2026Article
- CueO Possesses Copper Detoxification Activity Linking Bacterial Virulence and Drug Resistance in Brucella.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2026Article
- Coagulation pretreatment could deteriorate reverse osmosis membrane fouling.Nature communications · 2026Article
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- Review
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- Copper homeostasis; A rapier between mycobacteria and macrophages.FASEB bioAdvances · 2025Review
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Authors and funding
10 authors.
Funding
Abstract
The host limits Mycobacterium tuberculosis (Mtb) by enriching copper in high concentrations. This research investigates how Mtb escapes copper stress. The membrane protein encoded by Mtb Rv0102, when its homolog in M. smegmatis (MSMEG_4702) was knocked out, resulted in a fourfold decrease in intracellular copper levels and enhanced tolerance to elevated extracellular copper concentrations. Similarly, knockout mutants of its homolog in M. marinum (MMAR_0267) showed increased virulence in zebrafish and higher bacterial load within macrophages. In THP-1 cells infected with MMAR_0267 deletion mutants, the intracellular survival of these mutants increased, along with reduced THP-1 cell apoptosis. Deficiency in copper down-regulated the transcriptional level of the virulence factor CFP-10 in M. marinum, suppressed cytosolic signaling via the macrophage STING pathway, leading to decreased production of IFN-β and reduced cell apoptosis. In conclusion, these findings highlight the significant impact of copper on the survival and reproduction of mycobacteria, underscoring the importance of studying mycobacterial adaptation mechanisms in copper-rich environments.
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Registered trials
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