Probiotic Lactobacillus acidophilus enhances the immunogenicity of an oral rotavirus vaccine in gnotobiotic pigs.
We evaluated virus-specific B and T cell responses induced by the attenuated Wa (P1A[8]G1) human rotavirus (AttHRV) oral 2-dose vaccine with or without Lactobacillus acidophilus (LA) colonization in neonatal gnotobiotic (Gn) pigs. The AttHRV vaccinated and LA-fed pigs had a significantly higher magnitude of HRV-specific IFN-gamma producing CD8+ T cell responses in ileum and spleen, IgA and IgG antibody-secreting cell responses in ileum, and serum IgM, IgA and IgG antibody and virus neutralizing antibody titers compared to the AttHRV vaccinated pigs without LA colonization. These findings suggest that L. acidophilus has significant immunopotentiating effects and may be used as a safe oral adjuvant for rotavirus vaccines in neonates.
Food Animal Health Research Program, Department of Veterinary Preventive Medicine, Ohio Agricultural Research and Development Center, The Ohio State University, 1680 Madison Avenue, Wooster, OH 44691-4096, USA.
Wei
W
Zhang
Marli S P
MS
Azevedo
Ke
K
Wen
Ana
A
Gonzalez
Linda J
LJ
Saif
Guohua
G
Li
Ahmed E
AE
Yousef
Lijuan
L
Yuan
D000284:Administration, Oral; D000818:Animals; D001402:B-Lymphocytes / Q000276:immunology; D005856:Germ-Free Life; D006801:Humans; D007082:Ileum / Q000276:immunology; D007117:Immunization, Secondary; D007070:Immunoglobulin A / Q000276:immunology; D007074:Immunoglobulin G / Q000276:immunology; D007075:Immunoglobulin M; D007155:Immunologic Factors / Q000494:pharmacology*; D007371:Interferon-gamma / Q000378:metabolism; D007779:Lactobacillus acidophilus / Q000276:immunology*; D009500:Neutralization Tests; D019936:Probiotics / Q000494:pharmacology*; D022243:Rotavirus Vaccines / Q000008:administration & dosage / Q000276:immunology*; D013154:Spleen / Q000276:immunology; D013552:Swine; D013601:T-Lymphocytes / Q000276:immunology; D014613:Vaccines, Attenuated / Q000008:administration & dosage / Q000276:immunology
D007070:Immunoglobulin A; D007074:Immunoglobulin G; D007075:Immunoglobulin M; D007155:Immunologic Factors; D022243:Rotavirus Vaccines; D014613:Vaccines, Attenuated; D007371:Interferon-gamma