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A new type of two-color fluorescence staining for cytology specimens

CJ Cornelisse and JS Ploem

A new two-color fluorescence staining technique for cervical cytology specimens is described. To permit application of this staining in automated cytology, techniques for specimen collection and cell preparation giving a sufficient number of well-separated cells on slides were used. The staining consists of a combination of a modified Feulgen-acriflavine procedure for DNA and a primulin or stilbene isothiocyanate staining for protein. This results in a bright yellow nuclear fluorescence and a blue cytoplasmic fluorescence. The staining procedure can be completed in about 90 min and is therefore suitable for routine application. Sequential inspection of the yellow nuclear and blue cytoplasmic fluorescence can be done with the two-wavelength excitation method used in fluorescence microscopy. For the application of this method, special vertical illuminators are now available. These illuminators are provided with quickly interchangeable filter sets permitting consecutive visualization of, for example, only the nuclei in the first image and the whole cell in the second image. This procedure opens new possibilities for rapid image-analysis systems.

Volume 24, Issue 1, pp. 73-81, 01/01/1976
Copyright © 1976 by The Histochemical Society


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The Journal of Histochemistry & Cytochemistry is owned, published, and licensed by The Histochemical Society © 1976