O-Acetylation is essential for functional antibody generation against Staphylococcus aureus capsular polysaccharide

Staphylococcus aureus produces an antiphagocytic polysaccharide capsule to evade neutrophil-mediated killing. Many vaccines against encapsulated bacterial pathogens require generation of functional anti-capsular antibodies to mediate protection against infection and disease. Here it is shown that th...

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Bibliographic Details
Main Authors: Ingrid L. Scully, Viliam Pavliak, Yekaterina Timofeyeva, Yongdong Liu, Christine Singer, Annaliesa S. Anderson
Format: Article
Language:English
Published: Taylor & Francis Group 2018-01-01
Series:Human Vaccines & Immunotherapeutics
Subjects:
Online Access:http://dx.doi.org/10.1080/21645515.2017.1386360
Description
Summary:Staphylococcus aureus produces an antiphagocytic polysaccharide capsule to evade neutrophil-mediated killing. Many vaccines against encapsulated bacterial pathogens require generation of functional anti-capsular antibodies to mediate protection against infection and disease. Here it is shown that the generation of such antibody responses to S. aureus in vivo and in vitro requires the presence of O-acetyl modifications on the capsular polysaccharides. O-acetylation of S. aureus capsular polysaccharide therefore should be monitored carefully during vaccine development and production. This finding may provide additional insight into the previous failure of a S. aureus capsular polysaccharide conjugate vaccine.
ISSN:2164-5515
2164-554X