[PDF][PDF] Mice with diverse microbial exposure histories as a model for preclinical vaccine testing
Cell host & microbe, 2021•cell.com
Laboratory mice comprise an expeditious model for preclinical vaccine testing; however,
vaccine immunogenicity in these models often inadequately translates to humans.
Reconstituting physiologic microbial experience to specific pathogen-free (SPF) mice
induces durable immunological changes that better recapitulate human immunity. We
examined whether mice with diverse microbial experience better model human responses
post vaccination. We co-housed laboratory mice with pet-store mice, which have varied …
vaccine immunogenicity in these models often inadequately translates to humans.
Reconstituting physiologic microbial experience to specific pathogen-free (SPF) mice
induces durable immunological changes that better recapitulate human immunity. We
examined whether mice with diverse microbial experience better model human responses
post vaccination. We co-housed laboratory mice with pet-store mice, which have varied …
Summary
Laboratory mice comprise an expeditious model for preclinical vaccine testing; however, vaccine immunogenicity in these models often inadequately translates to humans. Reconstituting physiologic microbial experience to specific pathogen-free (SPF) mice induces durable immunological changes that better recapitulate human immunity. We examined whether mice with diverse microbial experience better model human responses post vaccination. We co-housed laboratory mice with pet-store mice, which have varied microbial exposures, and then assessed immune responses to influenza vaccines. Human transcriptional responses to influenza vaccination are better recapitulated in co-housed mice. Although SPF and co-housed mice were comparably susceptible to acute influenza infection, vaccine-induced humoral responses were dampened in co-housed mice, resulting in poor control upon challenge. Additionally, protective heterosubtypic T cell immunity was compromised in co-housed mice. Because SPF mice exaggerated humoral and T cell protection upon influenza vaccination, reconstituting microbial experience in laboratory mice through co-housing may better inform preclinical vaccine testing.
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