PMID- 8967504 OWN - NLM STAT- MEDLINE DCOM- 19961206 LR - 20171213 IS - 0002-9513 (Print) IS - 0002-9513 (Linking) VI - 270 IP - 5 Pt 1 DP - 1996 May TI - Tumor necrosis factor-alpha decreases surfactant protein B mRNA in murine lung. PG - L714-21 AB - Respiratory failure secondary to acute lung inflammation is associated with quantitative and qualitative abnormalities of pulmonary surfactant. The surfactant-associated proteins (SP)-A, -B, and -C are critical for normal surfactant function, synthesis, and metabolism. Tumor necrosis factor-alpha (TNF-alpha), a primary mediator of acute lung inflammation, decreased SP gene expression in vitro (32, 34). In the present in vivo study, transient T cell activation and TNF-alpha release were initiated by intraperitoneal administration of anti-CD3 antibody 145-2C11. Serum TNF-alpha was elevated 2 h after injection of the antibody. SP-B and -C mRNA were decreased 12 and 24 h after antibody treatment. Intratracheal murine TNF-alpha also resulted in decreased SP-B and SP-C mRNA levels in the bronchiolar and alveolar epithelium of adult FVB/N mice, as demonstrated by S1 nuclease protection and in situ hybridization assays, despite minimal histological inflammation. SP-A mRNA was not significantly altered after anti-CD3 antibody and was only mildly decreased after TNF-alpha. As previously reported, intercellular adhesion molecule-1 mRNA was elevated after intratracheal TNF-alpha. SP insufficiency contributes to the pathogenesis of pulmonary diseases associated with increased TNF-alpha, such as adult respiratory distress syndrome and pneumonia (8). TNF-alpha-mediated decrease in SP gene expression may contribute to the surfactant dysfunction and atelectasis observed in inflammatory lung diseases. FAU - Pryhuber, G S AU - Pryhuber GS AD - Division of Pulmonary Biology, Children's Hospital Medical Center, Cincinnati, Ohio 45229, USA. FAU - Bachurski, C AU - Bachurski C FAU - Hirsch, R AU - Hirsch R FAU - Bacon, A AU - Bacon A FAU - Whitsett, J A AU - Whitsett JA LA - eng GR - HD-07200/HD/NICHD NIH HHS/United States GR - HL-38859/HL/NHLBI NIH HHS/United States GR - HL-41496/HL/NHLBI NIH HHS/United States PT - Journal Article PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Am J Physiol JT - The American journal of physiology JID - 0370511 RN - 0 (Antibodies) RN - 0 (CD3 Complex) RN - 0 (Proteolipids) RN - 0 (Pulmonary Surfactant-Associated Protein A) RN - 0 (Pulmonary Surfactant-Associated Proteins) RN - 0 (Pulmonary Surfactants) RN - 0 (RNA, Messenger) RN - 0 (Recombinant Proteins) RN - 0 (Tumor Necrosis Factor-alpha) RN - 126547-89-5 (Intercellular Adhesion Molecule-1) SB - IM MH - Animals MH - Antibodies/immunology/pharmacology MH - CD3 Complex/immunology MH - Cricetinae MH - Female MH - Humans MH - Injections, Intraperitoneal MH - Intercellular Adhesion Molecule-1/metabolism MH - Lung/*metabolism MH - Mice MH - Mice, Inbred Strains MH - Proteolipids/*genetics MH - Pulmonary Surfactant-Associated Protein A MH - Pulmonary Surfactant-Associated Proteins MH - Pulmonary Surfactants/*genetics MH - RNA, Messenger/*antagonists & inhibitors/metabolism MH - Recombinant Proteins MH - Trachea MH - Tumor Necrosis Factor-alpha/administration & dosage/analysis/*pharmacology EDAT- 1996/05/01 00:00 MHDA- 1996/05/01 00:01 CRDT- 1996/05/01 00:00 PHST- 1996/05/01 00:00 [pubmed] PHST- 1996/05/01 00:01 [medline] PHST- 1996/05/01 00:00 [entrez] AID - 10.1152/ajplung.1996.270.5.L714 [doi] PST - ppublish SO - Am J Physiol. 1996 May;270(5 Pt 1):L714-21. doi: 10.1152/ajplung.1996.270.5.L714.