ArticleCellular signalling2023
Truncated oxidized phospholipids exacerbate endothelial dysfunction and lung injury caused by bacterial pathogens.
Article in Cellular signalling, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 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
3 citing papers in PubMed, 5 citations in OpenAlex.
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
Abstract
Oxidized phospholipids (OxPLs) are present at basal levels in circulation of healthy individuals, but a substantial increase and changes in composition of OxPLs may rapidly occur during microbial infections, sepsis, and trauma. Specifically, truncated oxidized phospholipids (Tr-OxPLs) exhibit detrimental effects on pulmonary endothelium, yet their role on modulation of lung injury caused by bacterial pathogens remains to be elucidated. This study investigated the effects of Tr-OxPL species: KOdiA-PC, POV-PC, PON-PC, PAz-PC, PGPC, and Lyso-PC on endothelial permeability and inflammatory responses to gram-positive bacterial particles. Results showed that all six tested Tr-OxPLs augmented endothelial barrier disruption caused by heat-killed Staphylococcus aureus (HKSA) as determined by VE-cadherin immunostaining and monitoring transendothelial electrical resistance. In parallel, even moderate elevation of Tr-OxPLs augmented HKSA-induced activation of NF-κB, secretion of IL-6 and IL-8, and protein expression of ICAM-1 and VCAM-1. In the mouse model of acute lung injury caused by intranasal injection of HKSA, intravenous Tr-OxPLs administration augmented HKSA-induced increase in BAL protein content and cell counts, tissue expression of TNFα, KC, IL1β, and CCL2, and promoted vascular leak monitored by lung infiltration of Evans Blue. These results suggest that elevated Tr-OxPLs act as critical risk factor worsening bacterial pathogen-induced endothelial dysfunction and lung injury.
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Registered trials
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