Schneider 2 cells, usually abbreviated as S2 cells, are one of the most commonly used Drosophila melanogastercell lines. S2 cells were derived from a primary culture of late stage (20–24 hours old) Drosophila melanogasterembryos by Dr. Imogene Schneider,[1] likely from a macrophage-like lineage.
S2 cells can be grown at room temperature both as a semi-adherent monolayer or
in suspension, and they can be grown in the absence of serum.[2]
Several media have been developed for culturing insect cell lines with many of them suitable for culturing S2 cells. The S2 cells have been shown to grow up to 5.1×107 cells/ml in serum free medium[3] and above 107 cells/ml in basal media such as that used in Schneider's experiments.[4]ExpreS2ion Biotechnologies have shown a cell concentration of up 7.0x107 cell/ml.[5]
S2 cells are often used for expression of heterologous proteins and can be used for large-scale production of proteins. Additionally, the cells can be easily transiently transfected with several plasmids at once to study protein interactions.[6][7]
^Schneider I (1972). "Cell Lines Derived from Late Embryonic Stages of Drosophila melanogaster". J. Embryol. Exp. Morphol. 27: 363–365.
^Moraes, Ângela M.; Jorge, Soraia A. C.; Astray, Renato M.; Suazo, Claudio A. T.; Calderón Riquelme, Camilo E.; Augusto, Elisabeth F. P.; Tonso, Aldo; Pamboukian, Marilena M.; Piccoli, Rosane A. M. (2012-05-01). "Drosophila melanogaster S2 cells for expression of heterologous genes: From gene cloning to bioprocess development". Biotechnology Advances. 30 (3): 613–628. doi:10.1016/j.biotechadv.2011.10.009. PMID22079894.
^Dyring, Charlotte (2011). "Optimising the Drosophila S2 Expression System for Production of Therapeutic Vaccines". BioProcessing Journal. 10 (2): 28–35. doi:10.12665/j102.dyring.