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Journal of Virology, October 2001, p. 9517-9525, Vol. 75, No. 19
Departments of Virology and Molecular
Biology1 and Biostatistics and
Epidemiology,2 St. Jude Children's Research
Hospital, Memphis, Tennessee 38105-2794
Received 23 March 2001/Accepted 6 July 2001
We established a porcine lung epithelial cell line designated St.
Jude porcine lung cells (SJPL) and demonstrated that all tested
influenza A and B viruses replicated in this cell line. The infectivity
titers of most viruses in SJPL cells were comparable to or better than
those in MDCK cells. The propagation of influenza viruses from clinical
samples in SJPL cells did not lead to antigenic changes in the
hemagglutinin molecule. The numbers of both Sia2-3Gal and Sia2-6Gal
receptors on SJPL cells were greater than those on MDCK cells.
Influenza virus infection of SJPL cells did not lead to apoptosis, as
did infection of MDCK cells. No porcine endogenous retrovirus was
detected in SJPL cells, and in contrast to MDCK cells, SJPL cells did
not cause tumors in nude mice.
0022-538X/01/$04.00+0 DOI: 10.1128/JVI.75.19.9517-9525.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.
Characterization of a Porcine Lung Epithelial Cell
Line Suitable for Influenza Virus Studies
*
Corresponding author. Mailing address: Department of
Virology and Molecular Biology, St. Jude Children's Research Hospital, 332 North Lauderdale St., Memphis, TN 38105-2794. Phone: (901) 495-3400. Fax: (901) 523-2622. E-mail:
robert.webster{at}stjude.org.
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