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Vickery TW, Armstrong M, Kofonow JM, Robertson CE, Kroehl ME, Reisdorph NA, Ramakrishnan VR, Frank DN. Altered tissue specialized pro-resolving mediators in chronic rhinosinusitis. Prostaglandins Leukot Essent Fatty Acids 2021; 164:102218. [PMID: 33338738 PMCID: PMC7855833 DOI: 10.1016/j.plefa.2020.102218] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 11/22/2020] [Accepted: 11/23/2020] [Indexed: 02/07/2023]
Abstract
Current literature implicates arachidonic acid-derived leukotrienes and prostaglandins in the pathogenesis of chronic rhinosinusitis. However, other omega-3 and omega-6 derived lipid mediators, such as specialized pro-resolving mediators (SPMs), may also be important in chronic inflammatory disorders of the upper airway. We hypothesize that SPMs differ among CRS subtypes compared to controls and in relation to sinonasal microbiota. Ethmoid sinus tissue and middle meatal swabs were collected from a convenience sample of 66 subjects, including non-CRS controls, CRS with polyps (CRSwNP), and CRS without polyps (CRSsNP). Lipid mediator pathways were analyzed by liquid chromatography/tandem mass spectrometry. Bacterial taxa were profiled in parallel by 16S rRNA gene sequencing. Resolvin D2 was elevated in both CRSwNP (p = 0.00076) and CRSsNP (p = 0.030) compared with non-CRS controls. Lipoxin A4 was significantly increased in CRSwNP compared with CRSsNP (p = 0.000033) and controls (p = 0.044). Cigarette smoking was associated with significantly lower concentrations of several 15-lipoxygenase metabolites including resolvin D1 (p = 0.0091) and resolvin D2 (p = 0.0097), compared with never-smokers. Several of the lipid compounds also correlated with components of the sinonasal mucosal microbiota, including bacterial pathogens such as Pseudomonas aeruginosa. These data suggest that dysfunctional lipid mediator pathways in CRS extend beyond the traditional descriptions of leukotrienes and prostaglandins and include SPMs. Furthermore, dysregulated SPM signaling may contribute to persistent inflammation and bacterial colonization in CRS.
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Affiliation(s)
- Thad W Vickery
- Department of Otolaryngology - Head & Neck Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO, USA; Department of Head and Neck Surgery, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Michael Armstrong
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Jennifer M Kofonow
- Department of Medicine, Division of Infectious Disease, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Charles E Robertson
- Department of Medicine, Division of Infectious Disease, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Miranda E Kroehl
- Department of Biostatistics and Informatics, Colorado School of Public Health, Aurora, CO, USA
| | - Nichole A Reisdorph
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Vijay R Ramakrishnan
- Department of Otolaryngology - Head & Neck Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO, USA.
| | - Daniel N Frank
- Department of Medicine, Division of Infectious Disease, University of Colorado Anschutz Medical Campus, Aurora, CO, USA.
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Manzini S, Busnelli M, Colombo A, Kiamehr M, Chiesa G. liputils: a Python module to manage individual fatty acid moieties from complex lipids. Sci Rep 2020; 10:13368. [PMID: 32770020 PMCID: PMC7415148 DOI: 10.1038/s41598-020-70259-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 07/24/2020] [Indexed: 12/03/2022] Open
Abstract
Lipidomic analyses address the problem of characterizing the lipid components of given cells, tissues and organisms by means of chromatographic separations coupled to high-resolution, tandem mass spectrometry analyses. A number of software tools have been developed to help in the daunting task of mass spectrometry signal processing and cleaning, peak analysis and compound identification, and a typical finished lipidomic dataset contains hundreds to thousands of individual molecular lipid species. To provide researchers without a specific technical expertise in mass spectrometry the possibility of broadening the exploration of lipidomic datasets, we have developed liputils, a Python module that specializes in the extraction of fatty acid moieties from individual molecular lipids. There is no prerequisite data format, as liputils extracts residues from RefMet-compliant textual identifiers and from annotations of other commercially available services. We provide three examples of real-world data processing with liputils, as well as a detailed protocol on how to readily process an existing dataset that can be followed with basic informatics skills.
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Affiliation(s)
- Stefano Manzini
- Department of Pharmacological and Biomolecular Sciences, Università Degli Studi Di Milano, Milan, Italy.
| | - Marco Busnelli
- Department of Pharmacological and Biomolecular Sciences, Università Degli Studi Di Milano, Milan, Italy
| | - Alice Colombo
- Department of Pharmacological and Biomolecular Sciences, Università Degli Studi Di Milano, Milan, Italy
| | - Mostafa Kiamehr
- Faculty of Medicine and Health Technology, Tampere University, 33014, Tampere, Finland
| | - Giulia Chiesa
- Department of Pharmacological and Biomolecular Sciences, Università Degli Studi Di Milano, Milan, Italy.
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