PCDH1 and infection: However, preincubation of cells with a human PCDH1-specific antibody (mAb-3305) that has been shown to block PCDH1-dependent infection of Andes virus previously [24], did not block Andes virus glycoprotein-mediated infection in CaPsm-K SV40T cells but did so in human pulmonary microvascular endothelial cells (HPMEC) (Fig 3D).