The structures of two glucomannans from Bletilla formosana and their protective effect on inflammation via inhibiting NF-κB pathway.
Carbohydr Polym
; 292: 119694, 2022 Sep 15.
Article
em En
| MEDLINE
| ID: mdl-35725182
ABSTRACT
Bletilla formosana is a traditional Chinese herbal medicine and is widely consumed as foods and medicines in China. However, the chemical structure and bioactivity of its polysaccharides remain unknown. Herein, two new polysaccharides, BFP60 and BFP80, with molecular weights of 3.99â¯kDa and 10.07â¯kDa, respectively, were isolated and purified from dried tuber of B. formosana. Structural analysis suggested that BFP60 and BFP80 may have backbone consisted of â4)-ß-d-Man-(1â,â4)-ß-d-Glc-(1â,â4)-2-O-acetyl-ß-d-Man-(1â, and â4)-3-O-acetyl-ß-d-Man-(1â. Inflammation assay in LPS-induced RAW264.7 cells showed that the productions of NO and pro-inflammatory cytokines including IL-6, IL-1ß, TNF-α, and IFN-γ were significantly reduced, and the expression of iNOS, COX-2, and target proteins in the NF-κB pathway were suppressed after BFP60 and BFP80 pretreatment. These findings indicated that this novel polysaccharide had significant inflammatory protective effects in vitro.
Palavras-chave
1-Phenyl-3-methyl-5-pyrazolone (PubChem CID: 4021); Acetic anhydride (PubChem CID: 7918); Bletilla formosana; Chemical structure; Glucomannan; Inflammation; Polysaccharide; Sodium borodeuteride (PubChem CID: 23673181); Trifluoroacetic acid (PubChem CID: 6422); d-Glucose (PubChem CID: 5793); d-Mannose (PubChem CID: 18950)
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Transdução de Sinais
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NF-kappa B
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Mananas
Limite:
Animals
Idioma:
En
Ano de publicação:
2022
Tipo de documento:
Article