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. 2003 Feb;107(2):205-12.
doi: 10.1016/s0166-0934(02)00236-7.

Establishment and characterization of two new pig cell lines for use in virological diagnostic laboratories

M Ferrari  1 , A Scalvini, M N Losio, A Corradi, M Soncini, E Bignotti, E Milanesi, P Ajmone-Marsan, S Barlati, D Bellotti, M Tonelli
Affiliations

Establishment and characterization of two new pig cell lines for use in virological diagnostic laboratories

M Ferrari et al. J Virol Methods. 2003 Feb.

Abstract

Two pig cell lines derived from kidney and trachea tissues and referred to as newborn swine kidney (NSK) and newborn pig trachea (NPTr) were established following serial culture of primary cells. They were characterized by an epithelial-like morphology, high capacity to replicate and stability of the cell monolayer for several days after seeding. Their modal chromosome number was modified in comparison to that of primary swine cells and they both displayed a transforming potential in vitro and displayed oncogenicity in nude mice. Infection with pig endogenous retroviruses was detected. Almost all the swine viruses tested, i.e., pseudorabies virus, pig parvovirus, hog cholera virus, transmissible gastroenteritis virus of swine, encephalomyocarditis virus, swine vesicular disease virus and the enteroviruses, except pig reproductive respiratory syndrome virus, were capable of replicating in the new cell lines with titres similar to the ones detected in the reference culture systems. Furthermore, all the selected influenza virus sub-types isolated from human, swine and avian species replicated with cytopathic effect in NSK and NPTr cells, whereas, of all the equine influenza viruses tested only the Miami and Suffolk sub-types replicated.

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