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- Title
Deep venous thrombosis: Behaviour of the polymorphonuclear leukocyte integrin pattern at baseline and after in vitro activation.
- Authors
Caimi, G.; Ciancarelli, M. G. Tozzi; Ferrara, F.; Montana, M.; Calandrino, V.; Canino, B.; Lo Presti, R.
- Abstract
In a group of 18 subjects with acute deep venous thrombosis (DVT), evidenced by clinical examination and echo-color-Doppler, we examined the phenotypical expression of the polymorphonuclear leukocyte (PMN) beta2-integrins (CD11a, CD11b, CD11c, CD18), obtained by using a flow cytofluorimeter. The evaluation was performed before and after in vitro activation (prolonged for 5 and 15 minutes) with 4-phorbol 12-myristate 13-acetate (PMA) and N-formyl-methionyl-leucyl-phenylalanine (fMLP). In DVT subjects, at baseline, the phenotypical expression of CD11b was decreased and that of CD11c was increased when compared with normal controls; no difference was found in CD11a and CD18 expression. In normal subjects PMN activation with both activators led to a constant increase of all PMN adhesion molecules; in DVT subjects CD11b, CD11c and CD18 increased, while CD11a expression did not show any change. These data indicate the presence of a functional alteration in circulating PMN cells from patients with DVT.
- Subjects
VENOUS thrombosis; THROMBOSIS; LEUCOCYTES; CELL adhesion molecules; FLOW cytometry; DIAGNOSIS
- Publication
Clinical Hemorheology & Microcirculation, 2005, Vol 33, Issue 1, p11
- ISSN
1386-0291
- Publication type
Article