ISSN:
1573-0778
Keywords:
cell counting
;
CHO
;
crystal violet
;
hybridoma
;
trypan blue
;
Vero-cells
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Medicine
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
Abstract Nuclear counts determined by crystal violet staining from samples of stationary or microcarrier cultures of hybridomas, CHO or Vero cells were consistently and significantly higher than cell concentrations determined by the trypan blue or Coulter counter methods. This difference was attributed to the presence of a significant proportion of binucleated cells, which are assumed to be 35% of the cell population in the stationary phase of Vero cultures. The proportion of such cells during exponential growth was variable. However, continuous sub-culture of these cells induced a degree of synchrony during growth which resulted in a cyclic variation of the difference between the cell and nuclei counting techniques. This data indicates that care should be taken in interpreting cell culture profiles based solely on crystal violet nuclei staining counts.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00364838
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