Anti-inflammatory effects of Kaempferol on Helicobacter pylori-induced inflammation.
Biosci Biotechnol Biochem
; 83(1): 166-173, 2019 Jan.
Article
en En
| MEDLINE
| ID: mdl-30286691
ABSTRACT
Inflammation induced by Helicobacter pylori infection related to gastric carcinogenesis. In this study, we have investigated the anti-inflammatory effect and its mechanism of kaempferol in the inflammatory response caused by H. pylori infection in vitro. We found that kaempferol reduced the expression of pro-inflammatory cytokines (TNF-α, IL-1ß, and IL-8) and production of IL-8 in AGS cells. In addition, kaempferol suppressed translocation of cytotoxin-associated gene A (CagA) and vacuolating cytotoxin A (VacA) of H. pylori to AGS cells. It was due to decreased transcription of type IV secretion system (T4SS) components involved in CagA injection and secretion system subunit protein A (SecA) of type V secretion system (T5SS) involved in VacA secretion by kaempferol. In conclusion, kaempferol shows the anti-inflammatory effect by suppressing the translocation of CagA and VacA proteins and leading to the down-regulation of pro-inflammatory cytokines. Abbreviations CagA cytotoxin-associated gene A; VacA vacuolating cytotoxin A; T4SS type IV secretion systems; SecA secretion system subunit protein A; T5SS type V secretion system.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Helicobacter pylori
/
Infecciones por Helicobacter
/
Quempferoles
/
Gastritis
/
Inflamación
/
Antiinflamatorios
Tipo de estudio:
Etiology_studies
Límite:
Humans
Idioma:
En
Revista:
Biosci Biotechnol Biochem
Asunto de la revista:
BIOQUIMICA
/
BIOTECNOLOGIA
Año:
2019
Tipo del documento:
Article