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Chromatin organization in isolated nuclei: Flow cytometric characterization employing forward and perpendicular light scatter

✍ Scribed by Dr. Stefano Papa; N. M. Maraldi; A. Matteucci; P. Santi; M. Vitale; A. Galanzi; F. A. Manzoli


Publisher
John Wiley and Sons
Year
1988
Tongue
English
Weight
731 KB
Volume
6
Category
Article
ISSN
0263-6484

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✦ Synopsis


Flow cytometric perpendicular and forward light scatters have been employed to evaluate whether the changes in chromatin organization due to ionic strength, Mgit concentration and pH, visible in electron microscopy, can be monitored by flow cytometry.

The average intensity of the perpendicular light scatter signal increased as nuclear chromatin became decondensed by lowering the ionic strength or releasing H1 histone at low p H values.

These results indicate that flow cytometry signals and in particular the perpendicular light scatter allow the detection of the conformational transitions in chromatin and may therefore be useful for studying cell cycle associated morphological changes in isolated nuclei.

K ~Y wow-Perpendicular light scatter; forward light scatter; chromatin; flow cytometry; electron microscopy.