These data suggest that ADF/cofilin activities play a key role in the actin polymerization/depolymerization process induced by Salmonella.     ///    "Expression of a kinase dead form of an ADF/cofilin kinase (LIM kinase 1) or a catalytically inactive ADF/cofilin phosphatase (Slingshot), but not constitutively active LIM kinase 1 or wild-type Slingshot, resulted in decreased invasion. "    ///    The activation of ADF/cofilin is brief and has to be reversed to facilitate efficient bacterial entry. 