Autoantibodies to lipids in bronchoalveolar lavage fluid of patients with acute respiratory distress syndrome
- 1 October 2001
- journal article
- clinical trial
- Published by Ovid Technologies (Wolters Kluwer Health) in Critical Care Medicine
- Vol. 29 (10), 1950-1954
- https://doi.org/10.1097/00003246-200110000-00017
Abstract
To investigate the presence of autoantibodies to lipids in the bronchoalveolar lavage (BAL) fluid from adult patients with acute respiratory distress syndrome (ARDS). Analysis of immunoglobulin G (IgG) in BAL fluid by electrophoresis followed by immunoblotting and characterization of immunoglobulins as antilipid autoantibodies. Intensive care unit of a university hospital and two research university laboratories. Twenty-seven mechanically ventilated patients in total, including nine patients with ARDS and two control groups. Patients were ventilated with a mechanical ventilation mode. Six aliquots of 20-mL sterile normal saline at 37°C were infused through the working channel of the bronchoscope. Total protein, detection of IgG by electrophoresis followed by immunoblotting, and characterization of IgG by enzyme-linked immunosorbent assay using different lipids as target antigens. Antiphospholipid autoantibodies are present in BAL fluid of ARDS patients. Among the phospholipids tested, phosphatidic acid and phosphatidylserine gave the most significant activity. The IgG fraction, purified from BAL fluids by affinity chromatography, gave the same pattern of binding as that of the BAL fluid. The presence of antiphospholipid autoantibodies in BAL fluid suggests involvement of autoimmune mechanisms in the pathogenesis of ARDS.This publication has 11 references indexed in Scilit:
- The Characteristics of Bronchoalveolar Lavage from a Patient with Antiphospholipid Syndrome who Developed Acute Respiratory Distress SyndromeClinical Rheumatology, 2001
- Catastrophic Antiphospholipid Syndrome: Clinical and Laboratory Features of 50 PatientsMedicine, 1998
- ARDS and adrenal insufficiency associated with the antiphospholipid antibody syndrome.Social psychiatry. Sozialpsychiatrie. Psychiatrie sociale, 1998
- Antiphospholipid Antibody Syndrome Presenting as a Refractory Noninflammatory Pulmonary VasculopathySocial psychiatry. Sozialpsychiatrie. Psychiatrie sociale, 1997
- Proteins and phospholipids in BAL from patients with hydrostatic pulmonary edema.American Journal of Respiratory and Critical Care Medicine, 1997
- MARKERS FOR PREDICTING THE DEVELOPMENT OF ACUTE RESPIRATORY DISTRESS SYNDROMEAnnual Review of Medicine, 1997
- Demonstration that anti-phospholipid auto-antibodies react with both anionic and zwitterionic phospholipidsImmunology Letters, 1993
- Antibodies to Phosphatidylethanolamine in Antiphospholipid Syndrome and Systemic Lupus Erythematosus: Their Correlation with Anticardiolipin Antibodies and P2Glycoprotein-I Plasma LevelsAutoimmunity, 1993
- Scientific perspectives on adult respiratory distress syndromeThe Lancet, 1992
- Antiphospholipid antibody syndrome: Immunologic and clinical aspectsSeminars in Arthritis and Rheumatism, 1990