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Mohammed SA, Saini RV, Jha AK, Hadda V, Singh AK, Prakash H. Sphingolipids, mycobacteria and host: Unraveling the tug of war. Front Immunol 2022; 13:1003384. [PMID: 36189241 PMCID: PMC9521350 DOI: 10.3389/fimmu.2022.1003384] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 08/26/2022] [Indexed: 11/13/2022] Open
Affiliation(s)
- Shakeel Ahmed Mohammed
- Amity Institute of Virology and Immunology, Amity University, Noida, India
- Department of Biotechnology, Maharishi Markandeshwar (M. M). Engineering College, Maharishi Markandeshwar (Deemed to be University), Ambala, India
| | - Reena Vohra Saini
- Department of Biotechnology, Maharishi Markandeshwar (M. M). Engineering College, Maharishi Markandeshwar (Deemed to be University), Ambala, India
| | | | - Vijay Hadda
- Department of Pulmonary Medicine and Sleep Disorders, All India Institute of Medical Sciences, New Delhi, India
| | - Amit Kumar Singh
- Experimental Animal Facility, National JALMA Institute for Leprosy and Other Mycobacterial Diseases, Tajganj Agra, India
| | - Hridayesh Prakash
- Department of Biotechnology, Maharishi Markandeshwar (M. M). Engineering College, Maharishi Markandeshwar (Deemed to be University), Ambala, India
- *Correspondence: Hridayesh Prakash,
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Palacios-Chaves L, Conde-Álvarez R, Gil-Ramírez Y, Zúñiga-Ripa A, Barquero-Calvo E, Chacón-Díaz C, Chaves-Olarte E, Arce-Gorvel V, Gorvel JP, Moreno E, de Miguel MJ, Grilló MJ, Moriyón I, Iriarte M. Brucella abortus ornithine lipids are dispensable outer membrane components devoid of a marked pathogen-associated molecular pattern. PLoS One 2011; 6:e16030. [PMID: 21249206 PMCID: PMC3017556 DOI: 10.1371/journal.pone.0016030] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2010] [Accepted: 12/03/2010] [Indexed: 11/19/2022] Open
Abstract
The brucellae are α-Proteobacteria facultative intracellular parasites that cause an important zoonosis. These bacteria escape early detection by innate immunity, an ability associated to the absence of marked pathogen-associated molecular patterns in the cell envelope lipopolysaccharide, lipoproteins and flagellin. We show here that, in contrast to the outer membrane ornithine lipids (OL) of other Gram negative bacteria, Brucella abortus OL lack a marked pathogen-associated molecular pattern activity. We identified two OL genes (olsB and olsA) and by generating the corresponding mutants found that olsB deficient B. abortus did not synthesize OL or their lyso-OL precursors. Liposomes constructed with B. abortus OL did not trigger IL-6 or TNF-α release by macrophages whereas those constructed with Bordetella pertussis OL and the olsB mutant lipids as carriers were highly active. The OL deficiency in the olsB mutant did not promote proinflammatory responses or generated attenuation in mice. In addition, OL deficiency did not increase sensitivity to polymyxins, normal serum or complement consumption, or alter the permeability to antibiotics and dyes. Taken together, these observations indicate that OL have become dispensable in the extant brucellae and are consistent within the trend observed in α-Proteobacteria animal pathogens to reduce and eventually eliminate the envelope components susceptible of recognition by innate immunity.
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Affiliation(s)
- Leyre Palacios-Chaves
- Departamento de Microbiología y Parasitología, Universidad de Navarra, Pamplona, Spain
| | - Raquel Conde-Álvarez
- Departamento de Microbiología y Parasitología, Universidad de Navarra, Pamplona, Spain
- Focal Area Infection Biology, Biozentrum of the University of Basel, Basel, Switzerland
| | - Yolanda Gil-Ramírez
- Departamento de Microbiología y Parasitología, Universidad de Navarra, Pamplona, Spain
| | - Amaia Zúñiga-Ripa
- Departamento de Microbiología y Parasitología, Universidad de Navarra, Pamplona, Spain
| | - Elías Barquero-Calvo
- Programa de Investigación en Enfermedades Tropicales, Escuela de Medicina Veterinaria, Universidad Nacional, Heredia, Costa Rica
| | - Carlos Chacón-Díaz
- Centro de Investigación en Enfermedades Tropicales, Facultad de Microbiología, Universidad de Costa Rica, San José, Costa Rica
- Programa de Investigación en Enfermedades Tropicales, Escuela de Medicina Veterinaria, Universidad Nacional, Heredia, Costa Rica
| | - Esteban Chaves-Olarte
- Centro de Investigación en Enfermedades Tropicales, Facultad de Microbiología, Universidad de Costa Rica, San José, Costa Rica
- Programa de Investigación en Enfermedades Tropicales, Escuela de Medicina Veterinaria, Universidad Nacional, Heredia, Costa Rica
| | - Vilma Arce-Gorvel
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille Université, Faculté de Sciences de Luminy, Marseille, INSERM U631, CNRS UMR6102, Marseille, France
| | - Jean-Pierre Gorvel
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille Université, Faculté de Sciences de Luminy, Marseille, INSERM U631, CNRS UMR6102, Marseille, France
| | - Edgardo Moreno
- Centro de Investigación en Enfermedades Tropicales, Facultad de Microbiología, Universidad de Costa Rica, San José, Costa Rica
- Instituto Clodomiro Picado, Facultad de Microbiología, Universidad de Costa Rica, San Pedro, Costa Rica
| | - María-Jesús de Miguel
- Centro de Investigación y Tecnología Agroalimentaria (CITA), Unidad de Sanidad Animal, Gobierno de Aragón, Zaragoza, Spain
| | - María-Jesús Grilló
- Instituto de Agrobiotecnología, CSIC-UPNA-Gobierno de Navarra, Pamplona, Spain
| | - Ignacio Moriyón
- Departamento de Microbiología y Parasitología, Universidad de Navarra, Pamplona, Spain
| | - Maite Iriarte
- Departamento de Microbiología y Parasitología, Universidad de Navarra, Pamplona, Spain
- * E-mail:
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