Structural identification and anti-neuroinflammatory effect of a heteropolysaccharide ATP50-3 from Acorus tatarinowii rhizome.
Int J Biol Macromol
; 266(Pt 2): 131254, 2024 May.
Article
em En
| MEDLINE
| ID: mdl-38565362
ABSTRACT
Acorus tatarinowii, a famous traditional Chinese medicine, is used for the clinical treatment of memory impairment and dementia. In this research, AT50, the crude polysaccharide extracted from A. tatarinowii rhizome, significantly improved the memory and learning ability of mice with Alzheimer's disease (AD) and exerted excellent anti-neuroinflammatory effects. More importantly, AT50 returned the levels of NO, TNF-α, IL-1ß, PGE-2, and IL-6 in AD mouse brains to normal levels. To identify the active ingredients in AT50, a heteropolysaccharide ATP50-3 was obtained from AT50. Structural analysis indicated ATP50-3 consisted of α-L-Araf-(1â, â2)-α-L-Araf-(1â, â3)-α-L-Araf-(1â, â5)-α-L-Araf-(1â, α-D-Xylp-(1â, â3,4)-ß-D-Xylp-(1â, â3)-α-D-Galp-(1â, â3,6)-α-D-Galp-(1â, â6)-4-OAc-α-D-Galp-(1â, â3,4,6)-α-D-Galp-(1â, â4)-α-D-Glcp-(1â, â2,3,6)-ß-D-Glcp-(1â, â4,6)-α-D-Manp-(1â, â3,4)-α-L-Rhap-(1â, â4)-α-D-GalpA-(1â, and â4)-α-D-GlcpA-(1 â residues and terminated with Xyl and Ara. Additionally, ATP50-3 significantly inhibited the release of proinflammatory factors in lipopolysaccharide-stimulated BV2 cells. ATP50-3 may be an active constituent of AT50, responsible for its anti-neuroinflammatory effects, with great potential to treat AD.
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Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Polissacarídeos
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Acorus
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Rizoma
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Anti-Inflamatórios
Idioma:
En
Revista:
Int J Biol Macromol
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Int. j. biol. macromol
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International journal of biological macromolecules
Ano de publicação:
2024
Tipo de documento:
Article
País de afiliação:
China