دورية أكاديمية
A bacterial pigment provides cross-species protection from H 2 O 2 - and neutrophil-mediated killing.
العنوان: | A bacterial pigment provides cross-species protection from H |
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المؤلفون: | Liu Y; Department of Microbiology, Ohio State University, Columbus, OH 43210.; Department of Microbial Infection and Immunity, Ohio State University College of Medicine, Columbus, OH 43210., McQuillen EA; Department of Health and Rehabilitation Sciences, Ohio State University College of Medicine, Columbus, OH 43210., Rana PSJB; Department of Microbiology, Ohio State University, Columbus, OH 43210.; Department of Microbial Infection and Immunity, Ohio State University College of Medicine, Columbus, OH 43210., Gloag ES; Department of Microbial Infection and Immunity, Ohio State University College of Medicine, Columbus, OH 43210.; Department of Biomedical Sciences and Pathobiology, Virginia Maryland College of Veterinary Medicine, Virginia Tech, Blacksburg, VA 24060., Parsek MR; Department of Microbiology, University of Washington School of Medicine, Seattle, WA 98195., Wozniak DJ; Department of Microbiology, Ohio State University, Columbus, OH 43210.; Department of Microbial Infection and Immunity, Ohio State University College of Medicine, Columbus, OH 43210. |
المصدر: | Proceedings of the National Academy of Sciences of the United States of America [Proc Natl Acad Sci U S A] 2024 Jan 09; Vol. 121 (2), pp. e2312334121. Date of Electronic Publication: 2024 Jan 03. |
نوع المنشور: | Journal Article |
اللغة: | English |
بيانات الدورية: | Publisher: National Academy of Sciences Country of Publication: United States NLM ID: 7505876 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1091-6490 (Electronic) Linking ISSN: 00278424 NLM ISO Abbreviation: Proc Natl Acad Sci U S A Subsets: MEDLINE |
أسماء مطبوعة: | Original Publication: Washington, DC : National Academy of Sciences |
مواضيع طبية MeSH: | Coinfection* , Staphylococcal Infections*/microbiology, Humans ; Animals ; Mice ; Staphylococcus aureus/genetics ; Hydrogen Peroxide/pharmacology ; Neutrophils ; Pseudomonas aeruginosa/genetics ; Biological Factors ; Biofilms |
مستخلص: | Bacterial infections are often polymicrobial. Pseudomonas aeruginosa and Staphylococcus aureus cause chronic co-infections, which are more problematic than mono-species infections. Understanding the mechanisms of their interactions is crucial for treating co-infections. Staphyloxanthin (STX), a yellow pigment synthesized by the S. aureus crt operon, promotes S. aureus resistance to oxidative stress and neutrophil-mediated killing. We found that STX production by S. aureus , either as surface-grown macrocolonies or planktonic cultures, was elevated when exposed to the P. aeruginosa exoproduct, 2-heptyl-4-hydroxyquinoline N-oxide (HQNO). This was observed with both mucoid and non-mucoid P. aeruginosa strains. The induction phenotype was found in a majority of P. aeruginosa and S. aureus clinical isolates examined. When subjected to hydrogen peroxide or human neutrophils, P. aeruginosa survival was significantly higher when mixed with wild-type (WT) S. aureus , compared to P. aeruginosa alone or with an S. aureus crt mutant deficient in STX production. In a murine wound model, co-infection with WT S. aureus , but not the STX-deficient mutant, enhanced P. aeruginosa burden and disease compared to mono-infection. In conclusion, we identified a role for P. aeruginosa HQNO mediating polymicrobial interactions with S. aureus by inducing STX production, which consequently promotes resistance to the innate immune effectors H Competing Interests: Competing interests statement:The authors declare no competing interest. |
التعليقات: | Update of: bioRxiv. 2023 Jan 17:2023.01.15.524085. doi: 10.1101/2023.01.15.524085. (PMID: 36711503) |
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معلومات مُعتمدة: | R01 AI143916 United States AI NIAID NIH HHS; UL1 TR002733 United States TR NCATS NIH HHS; R01 AI077628 United States AI NIAID NIH HHS; P30 CA016058 United States CA NCI NIH HHS; R01 AI134895 United States AI NIAID NIH HHS |
فهرسة مساهمة: | Keywords: Pseudomonas aeruginosa; Staphylococcus aureus; Staphyloxanthin; innate immunity; polymicrobial |
المشرفين على المادة: | BBX060AN9V (Hydrogen Peroxide) 0 (Biological Factors) |
تواريخ الأحداث: | Date Created: 20240103 Date Completed: 20240105 Latest Revision: 20240617 |
رمز التحديث: | 20240617 |
مُعرف محوري في PubMed: | PMC10786307 |
DOI: | 10.1073/pnas.2312334121 |
PMID: | 38170744 |
قاعدة البيانات: | MEDLINE |
تدمد: | 1091-6490 |
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DOI: | 10.1073/pnas.2312334121 |