Linked Life Data

1369220

Source:http://linkedlifedata.com/resource/pubmed/id/1369220

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1993-5-20
pubmed:abstractText
Eight cell lines derived from the insects Spodoptera frugiperda, Trichoplusia ni, Mamestra brassicae, and Estigmene acrea were evaluated for recombinant beta-galactosidase and infectious virus production following infection with the baculovirus Autographa californica multiple nuclear polyhedrosis virus (AcMNPV). Production was assessed on a specific (per cell and per microgram of uninfected cellular protein) and on a volumetric (per milliliter) basis. Cell density was found to be an important factor in comparing the cell lines due to a density-dependent inhibition of specific protein and virus production that appeared to result from cell-cell contact. After infection of cells at low-density specific beta-galactosidase production per cell would drop between 3- and 6-fold in five of the eight cell lines when plated on tissue culture plates at near-confluent and confluent cell densities. The cell lines Sf 21 and Sf 9 were least sensitive to cell density. After accounting for cell density effects and differences in cell size, two cell lines, BTI Tn 5B1-4 and BTI TnM, were identified that were superior to the other cell lines, including Sf 21 and Sf 9, in beta-galactosidase production. Optimal volumetric and specific beta-galactosidase production from Tn 5B1-4 and TnM cells was 2-fold and 5-fold higher, respectively, in both cell lines than the optimal production from Sf 9 or Sf 21 cells. The Tn 5B1-4 cell line also had the highest viability of all the cell lines at 3 days postinfection and could be adapted to serum-free media.(ABSTRACT TRUNCATED AT 250 WORDS)
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
B
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
8756-7938
pubmed:author
pubmed:issnType
Print
pubmed:volume
8
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
391-6
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:articleTitle
Screening of insect cell lines for the production of recombinant proteins and infectious virus in the baculovirus expression system.
pubmed:affiliation
School of Chemical Engineering, Cornell University, Ithaca, New York 14853.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, U.S. Gov't, Non-P.H.S., Research Support, Non-U.S. Gov't