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- Title
Adoptive Transfer of Serum Samples From Children With Invasive Staphylococcal Infection and Protection Against Staphylococcus aureus Sepsis.
- Authors
Tsai, Chih-Ming; Soper, Nicole; Bennett, Monique; Fallon, Jonathan K; Michell, Ashlin R; Alter, Galit; Liu, George Y; Thomsen, Isaac
- Abstract
A successful Staphylococcus aureus vaccine remains elusive, and one controversy in the field is whether humans generate a protective adaptive immune response to infection. We developed a bacterial challenge murine assay that directly assesses the protective capacity of adoptively transferred human serum samples. We first validated the model by showing that postpneumococcal vaccine serum samples from humans induced effective clearance of Streptococcus pneumoniae in mice. We then found that human serum samples adoptively transferred from children with invasive S. aureus infections exhibited protection from disease in a murine model, with some samples conferring near complete protection. These findings demonstrate that human serum samples are capable of conferring a protective adaptive response generated by humans during invasive staphylococcal disease, allowing for the study of protective factors in a murine model. Identification of the protective factors present in the most efficacious serum samples would be of high interest as potential staphylococcal vaccine candidates or passive therapeutics.
- Subjects
STAPHYLOCOCCAL diseases; STAPHYLOCOCCUS aureus; SEPSIS; STREPTOCOCCUS pneumoniae; IMMUNE response; STAPHYLOCOCCAL disease prevention; BIOLOGICAL models; RESEARCH; IMMUNIZATION; ANIMAL experimentation; RESEARCH methodology; BACTERIAL antibodies; MEDICAL cooperation; EVALUATION research; COMPARATIVE studies; MICE
- Publication
Journal of Infectious Diseases, 2021, Vol 223, Issue 7, p1222
- ISSN
0022-1899
- Publication type
journal article
- DOI
10.1093/infdis/jiaa482