Selected article for: "acute respiratory syndrome and lps lipopolysaccharide"
Author: Taghavi, Sharven; Jackson-Weaver, Olan; Abdullah, Sarah; Wanek, Alanna; Drury, Robert; Packer, Jacob; Cotton-Betteridge, Aaron; Duchesne, Juan; Pociask, Derek; Kolls, Jay
Title: Interleukin-22 mitigates acute respiratory distress syndrome (ARDS)
  • Cord-id: 2ol353j5
  • Document date: 2021_10_1
    • ID: 2ol353j5
    Snippet: BACKGROUND: The goal of this study was to determine if IL-22:Fc would Acute Respiratory Distress Syndrome (ARDS). SUMMARY BACKGROUND DATA: No therapies exist for ARDS and treatment is purely supportive. Interleukin-22 (IL-22) plays an integral component in recovery of the lung from infection. IL-22:Fc is a recombinant protein with a human FC immunoglobulin that increases the half-life of IL-22. STUDY DESIGN: ARDS was induced in C57BL/6 mice with intra-tracheal lipopolysaccharide (LPS) at a dose
    Document: BACKGROUND: The goal of this study was to determine if IL-22:Fc would Acute Respiratory Distress Syndrome (ARDS). SUMMARY BACKGROUND DATA: No therapies exist for ARDS and treatment is purely supportive. Interleukin-22 (IL-22) plays an integral component in recovery of the lung from infection. IL-22:Fc is a recombinant protein with a human FC immunoglobulin that increases the half-life of IL-22. STUDY DESIGN: ARDS was induced in C57BL/6 mice with intra-tracheal lipopolysaccharide (LPS) at a dose of 33.3 or 100 ug. In the low-dose LPS group (LDG), IL-22:FC was administered via tail vein injection at 30 minutes (n = 9) and compared to sham (n = 9). In the high-dose LPS group (HDG), IL-22:FC was administered (n = 11) then compared to sham (n = 8). Euthanasia occurred after bronchioalveolar lavage (BAL) on post-injury day 4. RESULTS: In the LDG, IL-22:FC resulted in decreased protein leak (0.15 vs. 0.25 ug/uL, p = 0.02). BAL protein in animals receiving IL-22:Fc in the HDG was not different. For the HDG, animals receiving IL-22:Fc had lower BAL cell counts (539,636 vs 3,147,556 cells/uL, p = 0.02). For the HDG, IL-6 (110.6 vs. 527.1 pg/mL, p = 0.04), TNF-α (5.87 vs. 25.41 pg/mL, p = 0.04), and G-CSF (95.14 vs. 659.6, p = 0.01) levels were lower in the BAL fluid of IL-22:Fc treated animals compared to sham. CONCLUSIONS: IL-22:Fc decreases lung inflammation and lung capillary leak in ARDS. IL-22:Fc may be a novel therapy for ARDS.

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