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Pulmonary mononuclear cells: studies of pulmonary lymph and bronchoalveolar cells of sheep

Journal Article · · RES, J. Reticuloendothel. Soc.; (United States)
OSTI ID:5177248
Access to lung lymph was obtained by cannulation of the efferent lymph duct of the caudal mediastinal lymph node of sheep. Bronchoalveolar cells were obtained by subsegmental lavages. Bronchoalveolar lymphocytes were purified using nylon wool columns. T and B lymphocytes were identified by indirect and direct immunofluorescence, respectively. The functional potential of pulmonary and blood lymphocytes was determined by the proliferative responses to phytohemagglutinin. Macrophages were the predominant cell type in sheep bronchoalveolar air spaces. T lymphocytes constituted the major fraction of blood, lung lymph and bronchoalveolar lymphocytes. Repeated bronchoalveolar lavages did not cause any apparent change in lavage cell populations. The response of lymphocytes in lung lymph and blood to PHA was comparable. Purified lavage lymphocytes exhibited a high degree of spontaneous activation in culture.
Research Organization:
Brookhaven National Lab., Upton, NY
DOE Contract Number:
AC02-76CH00016
OSTI ID:
5177248
Journal Information:
RES, J. Reticuloendothel. Soc.; (United States), Journal Name: RES, J. Reticuloendothel. Soc.; (United States) Vol. 29:2; ISSN RESJA
Country of Publication:
United States
Language:
English