Immunoregulatory and cytotoxic properties of broncho-alveolar lavage during asthma exacerbations
Abstract
Cytotoxic activity of cell free fraction (CFF) of the broncho-alveolar lavage (BAL) according to its ability to lyse the cells from the monocytoid human blast cell line J96 was assessed 8 asthmatics and 4 normals. Immunoregulatory properties of CFF were assessed according to its influence on spontaneous and konkanavaline A induced proliferation of peripheric human blood lymphocytes, cultivated in the presence of 3H-timidine. As a rule during «normal» stage CFF has no cytotoxic and mitogenic activity, and very slightly inhibits mitogenic response of lymphocytes stimulated by konkavaline in vitro. During the state of bronchial asthma CF of BAL presents high cytotoxic activity, which is not followed by appearance or rise in level of tumor necrotizing factor a. Immunoregulatory properties of BAL CFF are changing during asthma exacerbations: There appear some factors capable of inhibiting the spontaneous proliferation of peripheric human blood lymphocytes and strengthen their response to mitogens in comparison with the «normal» BAL CFF.
About the Authors
L. K. RomanovaRussian Federation
E. Yu. Moskaleva
Russian Federation
S. I. Ovcharenko
Russian Federation
T. B. Mladkovskaya
Russian Federation
G. P. Iljin
Russian Federation
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Review
For citations:
Romanova L.K., Moskaleva E.Yu., Ovcharenko S.I., Mladkovskaya T.B., Iljin G.P. Immunoregulatory and cytotoxic properties of broncho-alveolar lavage during asthma exacerbations. PULMONOLOGIYA. 1992;(4):30-34. (In Russ.)