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Proceedings Paper

Analysis of the 3D structure og agglutinated erythrocyte using CellScan and confocal microscopy: characterization by FLIM-FRET
Author(s): Bibiana D. Riquelme; Dominique Dumas; Juana Valverde de Rasia; Rodolfo J. Rasia; Jean Francois Stoltz
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Paper Abstract

We report the adhesion of human erythrocyte membranes mediated by monoclonal antibodies anti-glycophorin. The distribution of the linked antibodies on membrane was identified with selective fluorescence labels. To analyze the antibody distribution on interfacial region between two cells agglutinated and on its surface, three types of fluorescence marked strategy were evaluated. The 3D images were obtained in a CellScan and Confocal Laser Scanning Microscopy CLSM. We considered the FRET signal to characterize the agglutination of Red Blood Cells (RBC) by specific monoclonal antibodies (anti-glycophorin A or B). The fluorescence labeling demonstrated that distribution of antibody on erythrocyte membranes is not homogeneous. The fluorescence intensity on contact region in the agglutinated is bigger than the intensity on exterior surface. Tentatively, we interpreted these intensity differences in terms of the mobility of antibody linked to the glycocalix on cell surface. Such mobility has a large consequence in the morphology of cellular agglutinated.

Paper Details

Date Published: 9 October 2003
PDF: 9 pages
Proc. SPIE 5139, Confocal, Multiphoton, and Nonlinear Microscopic Imaging, (9 October 2003); doi: 10.1117/12.500123
Show Author Affiliations
Bibiana D. Riquelme, Univ. Nacional de Rosario (Argentina)
Instituto de Fisica Rosario - CONICET-UNR (Argentina)
Dominique Dumas, Lab. LEMTA, CNRS (France)
Juana Valverde de Rasia, Univ. Nacional de Rosario (Argentina)
Instituto de Fisica Rosario (Argentina)
Rodolfo J. Rasia, Univ. Nacional de Rosario (Argentina)
Instituto de Fisica Rosario (Argentina)
Jean Francois Stoltz, Lab. LEMTA, CNRS (France)

Published in SPIE Proceedings Vol. 5139:
Confocal, Multiphoton, and Nonlinear Microscopic Imaging
Tony Wilson, Editor(s)

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