Caveolin-1 (CAV1),a multifunctional protein,is the main constituent molecule of caveolae and represents a scaffolding molecule for several signaling molecules including epidermal growth factor receptor . Several studies have implicated that a reduced expression of CAV1 was found in cancers including head and neck carcinoma . However,other studies recognize CAV1 as a tumor promoter because CAV1 is overexpressed in various kinds of cancers,especially in oral cancer . Recent study also show that CAV1 is involved in astric Cancer .