|
KMID : 0624620090420050265
|
|
BMB Reports
2009 Volume.42 No. 5 p.265 ~ p.270
|
|
|
Inhibitory effects of flavonoids on TNF-α-induced IL-8 gene expression in HEK 293 cells
|
|
Lee Soo-Hyoung
Kim Young-Jin
Kwon Sang-Hoon
Lee Young-Hee
Choi Soo-Young
Park Jin-Seu
Kwon Hyung-Joo
|
|
|
Abstract
|
|
|
|
Due to their multiple biological activities, flavonoids have gained attention as potentially useful therapeutics for a variety of diseases including cancer, cardiovascular diseases, and autoimmune diseases. In this study, we demonstrated that several flavonoids, including kaempferol, quercetin, fisetin, and chrysin block TNF-α induced IL-8 promoter activation and gene expression in HEK 293 cells. In addition, phosphorylation and degradation of IκBα and translocation of NF-κB p65 were inhibited by these flavonoids in TNF-α-stimulated HEK 293 cells. Furthermore, generation of reactive oxygen species (ROS) in response to TNF-α was reduced by the flavonoids. Moreover, although pretreatment with fisetin, quercetin, or chrysin decreased cell viability, kaempferol did not. Taken together, these findings suggest that kaempferol would be useful for the treatment of TNF-α-induced inflammatory diseases.
|
|
|
KEYWORD
|
|
|
Flavonoids, IL-8, Kaempferol, NF-κB, ROS
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
  
|
|