Mast cells has a pivotal role in the induction of type I hypersensitive
response. In this study, the inhibitory effect and its mechanims of Saururi
herba (SH) on mast cells were investigated. The ethanol extract of SH
showed significant inhibitory ...
Mast cells has a pivotal role in the induction of type I hypersensitive
response. In this study, the inhibitory effect and its mechanims of Saururi
herba (SH) on mast cells were investigated. The ethanol extract of SH
showed significant inhibitory effect on degranulation in antigen-stimulated
mast cells; its IC50 values were ~43 μg/ml for RBL-2H3 cells and -7 μ
g/ml for Bone marrow-derived mast cells (BMMC), and it also inhibited
the expression of TNF-α and IL-4 in antigen-stimulated RBL-2H3 cells.
As its mechanism of action, SH inhibited the phosphorylation of Gab2 and
PI3K/ Akt for the activation of mast cells. The results of the study suggest
that the inhibition of mast cells by SH is mediated by the inhibition of
Fyn/Gab2/PI3K pathway in mast cells.
Keywords : Saururi herba, mast cells, Gab2, PI3 kinase