Cryo-EM image of a VLP-19 with approximately 30 nm diameter, to which palivizumab Fabs are bound through the spikes on its surface. Scale bar: 20 nm, Reprinted from ref. 156 copyright 2015, “American Society for Clinical Investigation” (ASCI) (open access), b) Schematic illustrating a GE11 polypeptide-crosslinked MS2 VLP vector, and its uptake into cells by clathrin-mediated endocytosis for delivery of MEG3 RNA and targeting of the EGFR-positive HCC cancer cells, Reprinted from ref.79 Copyright 2016 “Impact Journals” (open access).