Structure and synthesis of a vaccine and diagnostic target for Enterocloster bolteae, an autism-associated gut pathogen - Part II.
Carbohydr Res
; 526: 108805, 2023 Apr.
Article
em En
| MEDLINE
| ID: mdl-37023666
ABSTRACT
Enterocloster bolteae (formerly known as Clostridium bolteae) is a gastro-intestinal pathogenic bacterium often detected in the fecal microbiome of children in the autism spectrum. E. bolteae excretes metabolites that are thought to act as neurotoxins. This study is an update of our first E. bolteae investigation that discovered an immunogenic polysaccharide. Through a combination of chemical derivatizations/degradations, spectrometry and spectroscopy techniques, a polysaccharide composed of disaccharide repeating blocks comprised of 3-linked ß-d-ribofuranose and 4-linked α-l-rhamnopyranose, [â3)-ß-D-Ribf-(1 â 4)-α-L-Rhap-(1â]n, was identified. To confirm the structure, and to provide material for subsequent investigations, the chemical synthesis of a corresponding linker-equipped tetrasaccharide, ß-D-Ribf-(1 â 4)-α-L-Rhap-(1 â 3)-ß-D-Ribf-(1 â 4)-α-L-Rhap-(1âO(CH2)8N3, is also described. Research tools based on this immunogenic glycan structure can form the foundation for serotype classification, diagnostic/vaccine targets and clinical studies into the hypothesized role of E. bolteae in the onset/augmentation of autism related conditions in children.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Transtorno Autístico
/
Vacinas
Tipo de estudo:
Diagnostic_studies
/
Risk_factors_studies
Limite:
Child
/
Humans
Idioma:
En
Ano de publicação:
2023
Tipo de documento:
Article