In {TAIL ~ another aspect}, {HEAD ~ a method} for permeabilizing 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
In { TAIL ~ another aspect } , { HEAD ~ a method } for permeabilizing 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
REL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD 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 OTH OTH OTH OTH