We have shown previously that eosinophils are abundant in blood and tissue in bullous pemphigoid and that they rapidly disappear, without sign of necrosis, during methotrexate therapy. The aim of the present study was to investigate the role of apoptosis in this phenomenon. The terminal deoxynucleotidyl transferase-mediated dUTP-biotin nick-end labelling method for detecting apoptosis was used,...

The CD4 glycoprotein, expressed on leukocytes belonging to subsets of T lymphocytes and to cells of monocyte/macrophage lineage, participates in the functioning of T cells and serves as a receptor for HIV-1 and HIV-2. Human eosinophils, a class of granulocytic leukocytes, have been found to express CD4. With anti-CD4 mAbs CD4 was demonstrable on eosinophils from both normal and eosinophilic don...

Antieosinophil serum (AES), obtained by immunizing rabbits with a highly purified suspension of mouse eosinophils, contains high titers of specific agglutinating and cytotoxic antibodies to eosinophils. Absorption with macrophages, lymphocytes, and neutrophils does not affect the antieosinophilic activity while it is markedly lowered by absorption with eosinophils. One dose of AES (0.1 ml) inje...

The interaction between trypomastigotes of T. cruzi and purified rat eosinophils, neutrophils and macrophages has been studied. Macrophages induced by dextran, became infected and the parasites multiplied as amastigotes, eventually being released as trypomastigotes into the medium. Eosinophils show an antibody-dependent phagocytosis, while neutrophil phagocytosis is enhanced by antibody. Electr...

I read with interest the demonstration by Volbeda et al that clinical asthma control associates significantly with ‘lower activated eosinophil numbers in the bronchial wall, yet only weakly with sputum eosinophils’. I was particularly intrigued by the online supplemental information: ‘EPX staining showed widely spread distribution of eosinophilic granules, not necessarily in close proximity to ...

I read with interest the study by Coleman et al on lumen eotaxins and eosinophils, and epithelial brushing eotaxins in chronic asthma. Authors conclude that eotaxin-2 and -3 may contribute to luminal migration of eosinophils. However, potential roles of such transepithelial cell traffic are not discussed. In a recent editorial, Rosenberg highlights the possibility that luminal migration of eosi...

cytomorphological changes of mitomycin c on urothelial cells may be misinterpreted as a neoplastic process. a 60-year old male patient who was given an eight-week course of intravesical mitomycin c due to non-invasive low grade transitional cell carcinoma. during his follow-up care, the findings of a urine cytology exam were as follows: nuclear enlargement of cells, wrinkled nuclear membranes, ...

BACKGROUND TNF-alpha is an important mediator in allergy also for its effects on eosinophils. METHODS The effect of dexamethasone on TNF-alpha induced eosinophils survival, degranulation (ECP), cytokines release (IL-8, GM-CSF) and adhesion to VCAM-1, ICAM-1 and IgG coated wells (EPO release) were evaluated. RESULTS The drug inhibited IL-8 and GM-CSF production, but not viability, degranulat...

This study has presented the fine structure changes in the eosinophilic leukocyte in the rat uterus during the estrous cycle. Eosinophils were seen to emigrate into the uterine connective tissues from the blood stream. Just prior to, during estrus, and 1 day postestrus, eosinophilic leukocytes underwent lysis releasing their contents into the extracellular spaces and both whole eosinophils and ...

Methods are described for the isolation of human eosinophils and basophils from donor blood. Using these cell preparations Charcot-Leyden crystals were found to originate from both eosinophils and basophils when the cells were suspended in hypotonic saline solution. The crystals formed also when saline extracts of eosinophils and basophils were concentrated by ultrafiltration through dialysis t...