Protection of mice from wild-type Sendai virus infection by a trypsin-resistant mutant, TR-2.
AUTOR(ES)
Tashiro, M
RESUMO
A trypsin-resistant mutant of Sendai virus, TR-2, which could be activated by chymotrypsin but not by trypsin or the protease present in mouse lung, was inoculated intranasally into mice after being activated in vitro. TR-2 hardly brought about clinical illness or lung lesions in mice; the protease present in the lung could not activate the progeny virus, and the infection terminated after one-step replication. Nevertheless, the immunoglobulin A antibody against wild-type Sendai virus was produced in the respiratory tracts as well as the serum immunoglobulin G antibody, and the mice were protected from the challenge of the wild-type Sendai virus. On the basis of these results, TR-2 may provide a new model of live vaccine for paramyxoviruses; its availability as a live vaccine is also discussed.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=255018Documentos Relacionados
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