Characterisation of tetraploid and diploid of Spodoptera frugiperda cell lines

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Characterisation of tetraploid and diploid of Spodoptera frugiperda cell lines. / Jarman-Smith, RF; Mannix, C; Al-Rubeai, Mohamed.

In: Cytotechnology, Vol. 44, 01.01.2004, p. 15-25.

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@article{8efbb9085ed14b959a4e26459526dde3,
title = "Characterisation of tetraploid and diploid of Spodoptera frugiperda cell lines",
abstract = "We have isolated and characterised diploid and tetraploid clones from the normally heterologous Spodoptera frugiperda (Sf-9) cell line by dilution cloning technique. Tetraploid clones were found to have cell sizes in excess of 35% larger than that of the diploid clones. In contrast, the maximum cell numbers achieved in batch cultures of diploid clones were on average 185% higher than the tetraploid cell numbers. Growth rates and metabolic quotients during the exponential phase were similar for both clones. Tetraploid cells infected with wild-type and recombinant green fluorescent protein (GFP) baculovirus, resulted in more polyhedra or GFP product per cell. Importantly, the difference between the clones either completely diminished or reduced to 50% when the yield was assessed in terms of the amount of polyhedra or GFP per mL of medium, respectively. These results indicate that the existing heterogeneity in insect cell populations with respect to ploidy level, are correlated to cell growth and product yield.",
keywords = "intracellular pH, GFP, cell size, Spodoptera frugiperda, insect cells, flow cytometry, AcNPV",
author = "RF Jarman-Smith and C Mannix and Mohamed Al-Rubeai",
year = "2004",
month = jan,
day = "1",
doi = "10.1023/B:CYTO.0000043394.40309.48",
language = "English",
volume = "44",
pages = "15--25",
journal = "Cytotechnology",
issn = "0920-9069",
publisher = "Springer",

}

RIS

TY - JOUR

T1 - Characterisation of tetraploid and diploid of Spodoptera frugiperda cell lines

AU - Jarman-Smith, RF

AU - Mannix, C

AU - Al-Rubeai, Mohamed

PY - 2004/1/1

Y1 - 2004/1/1

N2 - We have isolated and characterised diploid and tetraploid clones from the normally heterologous Spodoptera frugiperda (Sf-9) cell line by dilution cloning technique. Tetraploid clones were found to have cell sizes in excess of 35% larger than that of the diploid clones. In contrast, the maximum cell numbers achieved in batch cultures of diploid clones were on average 185% higher than the tetraploid cell numbers. Growth rates and metabolic quotients during the exponential phase were similar for both clones. Tetraploid cells infected with wild-type and recombinant green fluorescent protein (GFP) baculovirus, resulted in more polyhedra or GFP product per cell. Importantly, the difference between the clones either completely diminished or reduced to 50% when the yield was assessed in terms of the amount of polyhedra or GFP per mL of medium, respectively. These results indicate that the existing heterogeneity in insect cell populations with respect to ploidy level, are correlated to cell growth and product yield.

AB - We have isolated and characterised diploid and tetraploid clones from the normally heterologous Spodoptera frugiperda (Sf-9) cell line by dilution cloning technique. Tetraploid clones were found to have cell sizes in excess of 35% larger than that of the diploid clones. In contrast, the maximum cell numbers achieved in batch cultures of diploid clones were on average 185% higher than the tetraploid cell numbers. Growth rates and metabolic quotients during the exponential phase were similar for both clones. Tetraploid cells infected with wild-type and recombinant green fluorescent protein (GFP) baculovirus, resulted in more polyhedra or GFP product per cell. Importantly, the difference between the clones either completely diminished or reduced to 50% when the yield was assessed in terms of the amount of polyhedra or GFP per mL of medium, respectively. These results indicate that the existing heterogeneity in insect cell populations with respect to ploidy level, are correlated to cell growth and product yield.

KW - intracellular pH

KW - GFP

KW - cell size

KW - Spodoptera frugiperda

KW - insect cells

KW - flow cytometry

KW - AcNPV

UR - http://www.scopus.com/inward/record.url?scp=5044238529&partnerID=8YFLogxK

U2 - 10.1023/B:CYTO.0000043394.40309.48

DO - 10.1023/B:CYTO.0000043394.40309.48

M3 - Article

C2 - 19003226

VL - 44

SP - 15

EP - 25

JO - Cytotechnology

JF - Cytotechnology

SN - 0920-9069

ER -