## Abstract The flowβcytometric (FCM) analysis of bivariate DNA/lgG distributions has been conducted to study the cell cycle kinetics and monoclonal antibody (MAb) production during perfusion culture of hybridoma cells. Three different perfusion rates were employed to demonstrate the dependency of
Cell cycle, cell size and mitochondrial activity of hybridoma cells during batch cultivation
β Scribed by M. Al-Rubeai; S. Chalder; R. Bird; A. N. Emery
- Publisher
- Springer
- Year
- 1991
- Tongue
- English
- Weight
- 576 KB
- Volume
- 7
- Category
- Article
- ISSN
- 0920-9069
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β¦ Synopsis
Cell cycle, cell size and rhodamine 123 fluorescence in cell populations of two batch cultures were analysed and quantified with a fluorescence-activated cell sorter (FACS). Two cultures derived from either exponential or stationary phase innocula were investigated in order to demonstrate the dependency of the subsequent cell growth on innoculum condition. The results demonstrated that the level of activity of ceils in the innoculum culture could have a significant effect on cellular activity during the initial phase of the inoculated culture, as it advances through its growth cycle. Positive correlation was found between the cell size and mitochondrial activity (as measured by rhodamine 123 uptake) with S and G2 fractions as the cell progressed through the cell cycle. The enumeration of the fractions of cell cycle phases has helped in prediction of the changes in cell numbers following perturbation of the culture condition.
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The routine measurement of the cell size distribution of a Chinese hamster ovary (CHO) cell population during a repeated batch process enables the predetermination of exponential growth even 24 h before the population enters the log phase, due to a short but significantly increased cell size during
We have studied the effect of the pyruvate dehydrogenase (PDH) activator, dichloroacetate (DCA), on the growth, metabolism, and productivity of the PQXB 1/2 hybridoma cell line. In control batch cultures, cessation of growth and the onset of decline phase coincided with the time at which the media b