Recovery of a fully viable chimeric human parainfluenza virus (PIV) type 3 in which the hemagglutinin-neuraminidase and fusion glycoproteins have been replaced by those of PIV type 1.

ABSTRACT: The recent recovery of human parainfluenza virus type 3 (PIV3) from cDNA, together with the availability of a promising, highly characterized live attenuated PIV3 vaccine virus, suggested a novel strategy for the rapid development of comparable recombinant vaccine viruses for human PIV1 and PIV2. The strategy, illustrated here for PIV1, is to create chimeric viruses in which the two protective antigens, the hemagglutinin-neuraminidase (HN) and fusion (F) envelope glycoproteins, of an attenuated PIV3 variant are replaced by those of PIV1 or PIV2. As a first step, this has been achieved by using recombinant wild-type (wt) PIV3 as the recipient for PIV1 HN and F, engineered so that each PIV1 open reading frame is flanked by the existing PIV3 nontranslated regions and transcription signals. Th

SUBMITTER: Tao T 

PROVIDER: S-EPMC109741 | biostudies-literature | 1998 Apr

REPOSITORIES: biostudies-literature