By passage 20 the cells had recovered and appeared capable of unlimited proliferation.
Chou JY. Human placental cells transformed by tsA mutants of simian virus 40: a model system for the study of placental functions. Proc. Natl. Acad. Sci. USA 75: 1409-1413, 1978. PubMed: 206898
Hay, R. J., Caputo, J. L., and Macy, M. L., Eds. (1992), ATCC Quality Control Methods for Cell Lines. 2nd edition, Published by ATCC.
Caputo, J. L., Biosafety procedures in cell culture. J. Tissue Culture Methods 11:223-227, 1988.
Fleming, D.O., Richardson, J. H., Tulis, J.J. and Vesley, D., (1995) Laboratory Safety: Principles and Practice. Second edition, ASM press, Washington, DC.
Reiter J, et al. Cytogenetic features of human trophoblast cell lines SWAN-71 and 3A-subE. Placenta 52: 17-20, 2017.