Ultrastructural analysis of leukocytes recruited into the guinea pig lung by LTB4 aerosol. 1989

A Shay, and T Connolly, and D N Smith, and G L Crean
Department of Immunology and Infectious Diseases, Pfizer Central Research, Groton, CT 06340.

Two groups of naive guinea pigs were exposed to different LTB4 aerosol solutions: LTB4/saline and LTB4/BSA. Control animals were exposed to saline alone and saline/BSA. The LTB4/BSA aerosol was the most effective in recruiting leukocytes, with the maximal numbers of cells in the lung tissue at 6 hrs. Light microscopy/TEM revealed marked differences in eosinophil morphology in saline/BSA and LTB4/BSA aerosol treated animals. Occasional eosinophils in the submucosa of controls, had few pseudopodia, few cytoplasmic vesicles, and intact granules. In LTB4 treated animals, there were numerous eosinophils in the bronchial mucosa and submucosa with numerous pseudopodia, numerous cytoplasmic vesicles, and light crystalline cores.

UI MeSH Term Description Entries
D007962 Leukocytes White blood cells. These include granular leukocytes (BASOPHILS; EOSINOPHILS; and NEUTROPHILS) as well as non-granular leukocytes (LYMPHOCYTES and MONOCYTES). Blood Cells, White,Blood Corpuscles, White,White Blood Cells,White Blood Corpuscles,Blood Cell, White,Blood Corpuscle, White,Corpuscle, White Blood,Corpuscles, White Blood,Leukocyte,White Blood Cell,White Blood Corpuscle
D007975 Leukotriene B4 The major metabolite in neutrophil polymorphonuclear leukocytes. It stimulates polymorphonuclear cell function (degranulation, formation of oxygen-centered free radicals, arachidonic acid release, and metabolism). (From Dictionary of Prostaglandins and Related Compounds, 1990) 5,12-HETE,5,12-diHETE,LTB4,Leukotriene B,Leukotriene B-4,Leukotrienes B,5,12 HETE,5,12 diHETE,B-4, Leukotriene,Leukotriene B 4
D008168 Lung Either of the pair of organs occupying the cavity of the thorax that effect the aeration of the blood. Lungs
D008297 Male Males
D006168 Guinea Pigs A common name used for the genus Cavia. The most common species is Cavia porcellus which is the domesticated guinea pig used for pets and biomedical research. Cavia,Cavia porcellus,Guinea Pig,Pig, Guinea,Pigs, Guinea
D000336 Aerosols Colloids with a gaseous dispersing phase and either liquid (fog) or solid (smoke) dispersed phase; used in fumigation or in inhalation therapy; may contain propellant agents. Aerosol
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D012710 Serum Albumin, Bovine Serum albumin from cows, commonly used in in vitro biological studies. (From Stedman, 25th ed) Fetal Bovine Serum,Fetal Calf Serum,Albumin Bovine,Bovine Albumin,Bovine Serum Albumin,Albumin, Bovine,Albumin, Bovine Serum,Bovine Serum, Fetal,Bovine, Albumin,Calf Serum, Fetal,Serum, Fetal Bovine,Serum, Fetal Calf
D013997 Time Factors Elements of limited time intervals, contributing to particular results or situations. Time Series,Factor, Time,Time Factor

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