Influence of antigen insertion site and vector dose on immunogenicity and protective capacity in sendai virus-based human parainfluenza virus type 3 vaccines

John N. Mason, Husni Elbahesh, Charles J. Russell

Research output: Contribution to journalArticle

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Abstract

Recombinant Sendai virus (rSeV) was used as a live, attenuated vaccine vector for intranasal inoculation and mucosal expression of the hemagglutinin-neuraminidase (HN) surface glycoprotein of human parainfluenza virus type 3 (HPIV3). Two vaccine candidates rSeV-HPIV3HN(P-M) and rSeV-HPIV3(F-HN) were constructed in which the HPIV3 HN open reading frame and an additional gene junction was inserted in the P-M and F-HN gene junctions of rSeV, respectively. The rSeV-HPIV3HN(P-M) virus was attenuated compared to rSeV-HPIV3(F-HN) in LLC-MK2 cells, and yet both vaccine candidates grew to similar extents in NHBE cells and in the respiratory tracts of cotton rats. These results suggest that in vitro vector growth in NHBE cells more accurately predicts virus yield in cotton rats than does growth in LLC-MK2 cells. Both vaccine vectors elicited high levels of serum neutralizing antibodies and conferred protection from HPIV3 challenge in cotton rats. Compared to vaccination with a high dose (2,000,000 PFU), intranasal inoculation with a low dose (200 PFU) resulted in a 10-fold decrease in vector growth in the nasal cavity and trachea and a 50-fold decrease in the lungs. However, low-dose vaccination resulted in only modest decreases in anti-HPIV3 antibodies in sera and was sufficient to confer complete protection from HPIV3 challenge. Varying the HPIV3 antigen insertion site and vector dose allowed fine-tuning of the in vivo growth and immunogenicity of rSeV-based vaccines, but all four vaccination strategies tested resulted in complete protection from HPIV3 challenge. These results highlight the versatility of the rSeV platform for developing intranasally administered respiratory virus vaccines.

Original languageEnglish (US)
Pages (from-to)5959-5969
Number of pages11
JournalJournal of Virology
Volume87
Issue number10
DOIs
StatePublished - May 1 2013

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Human parainfluenza virus 3
Sendai virus
Vaccines
immune response
vaccines
antigens
Antigens
viruses
dosage
sialidase
hemagglutinins
Sigmodon
vaccination
Hemagglutinins
Neuraminidase
Sigmodontinae
Vaccination
Growth
Viruses
vector vaccines

All Science Journal Classification (ASJC) codes

  • Microbiology
  • Immunology
  • Insect Science
  • Virology

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Influence of antigen insertion site and vector dose on immunogenicity and protective capacity in sendai virus-based human parainfluenza virus type 3 vaccines. / Mason, John N.; Elbahesh, Husni; Russell, Charles J.

In: Journal of Virology, Vol. 87, No. 10, 01.05.2013, p. 5959-5969.

Research output: Contribution to journalArticle

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