PMID- 8430950 OWN - NLM STAT- MEDLINE DCOM- 19930309 LR - 20181130 IS - 0003-0805 (Print) IS - 0003-0805 (Linking) VI - 147 IP - 2 DP - 1993 Feb TI - Elevated release of tumor necrosis factor-alpha and interferon-gamma by bronchoalveolar leukocytes from patients with bronchial asthma. PG - 291-5 AB - Bronchoalveolar lavage (BAL) leukocyte-secreted cytokines are considered to be important mediators of the inflammatory and allergic reactions in the lung. This study examines quantitative changes in the level of tumor necrosis factor-alpha (TNF alpha) and interferon-gamma (IFN gamma) production in BAL cell cultures derived from patients (n = 11) with bronchial asthma. The secretion of TNF alpha and IFN gamma was determined in intact (unstimulated) and phytohemagglutinin/phorbol myristate acetate (PHA + PMA)-stimulated BAL leukocyte cultures and compared with that in control cultures. In all patients studied, the background and PHA + PMA-induced secretion of TNF alpha and IFN gamma was significantly (p < 0.001) higher than that in parallel control cultures. In contrast to BAL cell preparations, the capacity of TNF alpha and IFN gamma secretion by patients' peripheral blood mononuclear cells (PBMC) did not differ from that of control subjects. High spontaneous release of TNF alpha and IFN gamma by patients' BAL leukocytes, but not PBMC, suggest that in the pathophysiology of bronchial asthma, these cytokines may act as local pathogenic agents in the lung. FAU - Cembrzynska-Nowak, M AU - Cembrzynska-Nowak M AD - Laboratory of Virology, Polish Academy of Sciences, Wroclaw. FAU - Szklarz, E AU - Szklarz E FAU - Inglot, A D AU - Inglot AD FAU - Teodorczyk-Injeyan, J A AU - Teodorczyk-Injeyan JA LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Am Rev Respir Dis JT - The American review of respiratory disease JID - 0370523 RN - 0 (Tumor Necrosis Factor-alpha) RN - 82115-62-6 (Interferon-gamma) SB - IM MH - Adult MH - Asthma/etiology/*physiopathology MH - Bronchoalveolar Lavage Fluid/*cytology MH - Bronchoscopy/methods MH - Cells, Cultured/chemistry/metabolism MH - Humans MH - Interferon-gamma/analysis/*metabolism MH - Leukocytes/chemistry/*metabolism MH - Leukocytes, Mononuclear/chemistry/metabolism MH - Middle Aged MH - Tumor Necrosis Factor-alpha/analysis/*metabolism EDAT- 1993/02/01 00:00 MHDA- 1993/02/01 00:01 CRDT- 1993/02/01 00:00 PHST- 1993/02/01 00:00 [pubmed] PHST- 1993/02/01 00:01 [medline] PHST- 1993/02/01 00:00 [entrez] AID - 10.1164/ajrccm/147.2.291 [doi] PST - ppublish SO - Am Rev Respir Dis. 1993 Feb;147(2):291-5. doi: 10.1164/ajrccm/147.2.291.