In another aspect, {HEAD ~ a method} for permeabilizing {TAIL ~ a cell} is provided, comprising contacting a cell with a polyvalent agent that binds to a highly expressed cell surface antigen present on the surface of the cell 
In another aspect , { HEAD ~ a method } for permeabilizing { TAIL ~ a cell } is provided , comprising contacting a cell with a polyvalent agent that binds to a highly expressed cell surface antigen present on the surface of the cell
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH