Rapid staining methods for analysis of deocyribonucleic acid and protein in mammalian cells
Quantitative fluorescent staining and analysis of cellular deoxyribonucleic acid (DNA) were accomplished using three groups of reagents having different mechanisms of action for DNA binding. These reagents included the fluorescent antitumor antibiotics mithramycin, chromomycin A/sub 3/ and olivomycin; the Feulgen reagents acriflavine and flavophosphine N; and the intercalating dyes ethidium bromide and propidium iodide. Propidium iodide (PI) was used in combination with fluorescein isothiocyanate (FITC) to stain both cellular DNA and protein, respectively. Multiparameter analysis of PI/FITC-stained cells provided a direct correlation of DNA and protein for cells in all stages of the cell cycle. Nuclear-to-cytoplasmic ratio determinations were also performed on PI/FITC-stained cells by analysis of the time duration of the red (DNA) and green (protein) fluorescence signals from each cell. These staining and analysis techniques provide alternative methods for directly determining the quantitative relationship between cellular DNA and protein and will be extremely useful in investigations where fluctuations of these parameters are of importance for assessing experimental results.
- Research Organization:
- Los Alamos Scientific Lab., NM
- OSTI ID:
- 7256597
- Journal Information:
- J. Histochem. Cytochem.; (United States), Journal Name: J. Histochem. Cytochem.; (United States) Vol. 24:1; ISSN JHCYA
- Country of Publication:
- United States
- Language:
- English
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550300* -- Cytology
59 BASIC BIOLOGICAL SCIENCES
ACRIDINES
ACRIFLAVINE
AMINES
ANIMAL CELLS
ANTIBIOTICS
AROMATICS
AZINES
CARBOXYLIC ACIDS
CELL CONSTITUENTS
CELL NUCLEI
CHEMICAL ANALYSIS
CYTOCHEMISTRY
CYTOPLASM
DNA
DRUGS
DYES
FEULGEN METHOD
FLAVINES
FLUORESCEIN
FLUORESCENCE
HETEROCYCLIC COMPOUNDS
HYDROXY ACIDS
HYDROXY COMPOUNDS
LUMINESCENCE
NUCLEIC ACIDS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PHENOLS
POLYPHENOLS
PROTEINS
PYRIDINES
STAINS