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Development of oligomannose-coated liposome-based nasal vaccine against human parainfluenza virus type 3

Kyosuke Senchi1, Satoko Matsunaga, Hideki Hasegawa

  • 1Department of Microbiology, Yokohama City University School of Medicine, Yokohama, Kanagawa Japan.

Frontiers in Microbiology
|December 11, 2013
PubMed

Insights

Oligomannose-coated liposomes carrying HPIV3 hemagglutinin-neuraminidase protein, combined with a poly(I:C) adjuvant, effectively induce systemic and mucosal immunity against Human parainfluenza virus type 3.

Area of Science:

  • Virology
  • Immunology
  • Vaccine Development

Background:

  • Human parainfluenza viruses (HPIVs) cause severe respiratory infections in vulnerable populations.
  • Developing an effective HPIV vaccine is crucial for prevention.
  • Current prevention strategies for HPIVs are limited.

Purpose of the Study:

  • To evaluate oligomannose-coated liposomes (OMLs) as a delivery system for HPIV3 antigen.
  • To assess the immunogenicity of OML-encapsulated HPIV3 hemagglutinin-neuraminidase (HN) protein with a poly(I:C) adjuvant.
  • To determine the capacity of this formulation to induce protective immunity against HPIV3.

Main Methods:

  • Synthesized full-length HPIV3 HN protein using a wheat germ cell-free system.
  • Encapsulated HN protein into OMLs for antigen delivery.
  • Administered OML-HN with or without poly(I:C) adjuvant intranasally in a mouse model.

Main Results:

  • Intranasal co-administration of OML-HN and poly(I:C) induced significant HPIV3-specific systemic IgG and mucosal IgA responses.
  • Immunization with OML-HN alone did not elicit significant immune responses.
  • Serum from immunized mice demonstrated viral infection suppression in a cell culture model.

Conclusions:

  • Oligomannose-coated liposomes serve as an effective antigen-delivery system for HPIV3.
  • Co-administration with poly(I:C) adjuvant significantly enhances HPIV3-specific mucosal and systemic immunity.
  • This intranasal vaccine approach holds promise for HPIV3 prevention.

Keywords:
HNHPIV3adjuvantoligomannose-coated liposomevaccine

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