Screening of single-cell donai lines from "Papilio demoleus" Linnaeus cell lines for exogenous protein expression and adaptation in serum-free culture

Screening of single-cell donai lines from "Papilio demoleus" Linnaeus cell lines for exogenous protein expression and adaptation in serum-free culture

In this paper, four established cell lines derived from newly hatched larvae of Papilio demoleus Linnaeus and 57 single-cell clones derived from the 3 lines were used as test materials. Recombinant β-galactosidase baculovirus AcMNPV-Gal was used to infect the P. demoleus L. cell lines and the single...

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Bibliographic Details
Published in:In vitro cellular & developmental biology. Animal 2020-06, Vol.56 (6), p.444-451
Main Authors: Ding, Wei-Feng, Liu, Zhi-Gang, Sun, Na, Zhang, Xin, Li, Xian, Feng, Ying
Format: Article
Language:eng
Subjects:
BIOTECHNOLOGY
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Summary:In this paper, four established cell lines derived from newly hatched larvae of Papilio demoleus Linnaeus and 57 single-cell clones derived from the 3 lines were used as test materials. Recombinant β-galactosidase baculovirus AcMNPV-Gal was used to infect the P. demoleus L. cell lines and the single-cell clones, and recombinant protein expression in each cell line was detected and compared. Three clonal cell lines, RIRI-PaDe-l-Cl, RIRI-PaDe-2-C6 and RIRI-PaDe-3-C52, which showed significantly higher β-galactosidase expression levels than those of the parental cell lines, were selected. Five types of commercial serum-free media for insect cells, Express Five SFM, Ex-Cell 405, Sf-900III SFM, Sf-900II SFM and HyClone Serum-Free Media, were used to adapt RIRI-PaDe-2-C6 cells and RIRI-PaDe-3-C52 cells to serum-free culture conditions, and the growth characteristics of the cells and the exogenous protein expression characteristics before and after adaptation were compared. The results showed that RIRI-PaDe-2-C6 cells could stably proliferate in Ex-Cell 405, RIRI-PaDe-3-C52 cells could stably proliferate in Express Five SFM and Ex-Cell 405, and the rate of proliferation of and the level of expression of β-galactosidase in RIRI-PaDe-3-C52 cells were significantly increased in Express Five SFM.
ISSN:1071-2690
1543-706X