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Optimization of cultivation conditions in spin tubes for Chinese hamster ovary cells producing erythropoietin and the comparison of glycosylation patterns in different cultivation vesselsStrnad, Jure, 1982- ...This article describes the optimization of cultivation factor settings, that is the shaking rate and working volume in 50 mL spin tubes for a Chinese hamster ovary cell line expressing recombinant ... human -erythropoietin, using a response D-optimal surface method. The main objectives of the research were, firstly, to determine a setting in which the product titer and product quality attributes in spin tubes are equivalent to those in 250 mL shake flasks in a seven day batch and, secondly, to find a setting in which the product titer is maximal. The model for product titer prediction as a function of shaking rate and working volume in the defined design space was successfully applied to the optimization of cultivation conditions in spin tubes for the tested cell line. Subsequently, validation experiments were carried out simultaneously in spin tubes, shake flasks and bench scale bioreactors to compare cell culture performance parameters such as growth, productivity and product quality attributes in the form of isoform profiles and glycan antennarity structures. The results of the experiments showed that similar cell culture performance and product quality could be achieved in spintubes when compared to shake flasks. Additionally, bioreactor titers could be reproduced in spin tubes at high shaking rates and low working volumes, but with differing product quality. Cultivation at lower shaking rates in spin tubes and shake flasks produced a glycoprotein with a product quality slightly comparable to that from bioreactors, but with titers being only two thirds.Source: Biotechnology progress. - ISSN 8756-7938 (Vol. 26, iss. 3, May - Jun. 2010, str. 653-663)Type of material - article, component partPublish date - 2010Language - englishCOBISS.SI-ID - 14357782
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Strnad, Jure, 1982- | 28778 |
Brinc, Matjaž, mikrobiolog | 31061 |
Spudić, Vatroslav | 34806 |
Jelnikar, Nadja | ![]() |
Vodeb, Lidija | 18237 |
Čarman, Barbara | ![]() |
Kravanja, Zdravko | 06005 |
Source: Personal bibliographies
and: SICRIS
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