Figure 4.

Poly I:C-stimulated HA-mediated cell attachment is less in STAT1-null SMCs compared to wild-type cells. a: Isolated SMCs from STAT1 wild-type (+/+) and null (−/−) mice were treated with or without poly I:C for 18 hours and a quantitative assay was performed using labeled U937 cells for attachment as described in the Materials and Methods. b: Parallel cultures on coverslips were treated similarly, methanol-fixed, and stained for HA (green) and nuclei (blue, 4,6-diamidino-2-phenylindole) as described in the Materials and Methods section.