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Flow cytometric analysis of proliferation associated nuclear antigens using washless staining of unfixed cells

✍ Scribed by Göran Landberg; Göran Roos

Publisher
John Wiley and Sons
Year
1992
Tongue
English
Weight
942 KB
Volume
13
Category
Article
ISSN
0196-4763

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✦ Synopsis

The expression of different proliferation associated nuclear antigens was analyzed using a washless double-staining method and flow cytometry. It is a simple and rapid two-step procedure which can be performed on low cell numbers. A series of hematopoietic cell lines and fresh lymphoma cells were tested and the methodology was found to be applicable to a number of nuclear antigens (PCNA, Ki-67, p105, MPM-2, fibrillarin). For PCNA, the detectability was dependent on the type of antibody used. The immu-nofluorescence pattern observed by microscopy was altered for antigens stained by the washless technique in comparison with the pattern obtained with fixed cells. With the washless method, detailed cell cycle analysis could be obtained by dual parameter analysis of PCNA and Ki-67.

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