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Proceedings Paper

Immunophenotyping by slide-based cytometry and by flow cytometry are comparable
Author(s): Andreas O.H. Gerstner M.D.; Wiebke Laffers; Anja Mittag; Ingo Daehnert; Domnik Lenz; Friedrich Bootz; Jozsef Bocsi; Attila Tarnok
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Paper Abstract

Immunophenotyping of peripheral blood leukocytes (PBLs) is performed by flow cytometry (FCM) as the golden standard. Slide based cytometry systems for example laser scanning cytometer (LSC) can give additional information (repeated staining and scanning, morphology). In order to adequately judge on the clinical usefulness of immunophenotyping by LSC it is obligatory to compare it with the long established FCM assays. We performed this study to systematically compare the two methods, FCM and LSC for immunophenotyping and to test the correlation of the results. Leucocytes were stained with directly labeled monoclonal antibodies with whole blood staining method. Aliquots of the same paraformaldehyde fixed specimens were analyzed in a FACScan (BD-Biosciences) using standard protocols and parallel with LSC (CompuCyte) after placing to glass slide, drying and fixation by aceton and 7-AAD staining. Calculating the percentage distribution of PBLs obtained by LSC and by FCM shows very good correlation with regression coefficients close to 1.0 for the major populations (neutrophils, lymphocytes, and monocytes), as well as for the lymphocyte sub-populations (T-helper-, T-cytotoxic-, B-, NK-cells). LSC can be recommended for immunophenotyping of PBLs especially in cases where only very limited sample volumes are available or where additional analysis of the cells’ morphology is important. There are limitations in the detection of rare leucocytes or weak antigens where appropriate amplification steps for immunofluorescence should be engaged.

Paper Details

Date Published: 29 March 2005
PDF: 6 pages
Proc. SPIE 5699, Imaging, Manipulation, and Analysis of Biomolecules and Cells: Fundamentals and Applications III, (29 March 2005); doi: 10.1117/12.588644
Show Author Affiliations
Andreas O.H. Gerstner M.D., Univ. of Bonn (Germany)
Wiebke Laffers, Univ. of Bonn (Germany)
Anja Mittag, IZKF Leipzig (Germany)
Ingo Daehnert, Univ. Hospital Leipzig (Germany)
Domnik Lenz, Univ. Hospital Leipzig (Germany)
Friedrich Bootz, Univ. of Bonn (Germany)
Jozsef Bocsi, Univ. Hospital Leipzig (Germany)
Attila Tarnok, Univ. Hospital Leipzig (Germany)

Published in SPIE Proceedings Vol. 5699:
Imaging, Manipulation, and Analysis of Biomolecules and Cells: Fundamentals and Applications III
Dan V. Nicolau; Dan V. Nicolau; Jörg Enderlein; Ramesh Raghavachari; Robert C. Leif; Daniel L. Farkas, Editor(s)

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