DSPE-PEG does not retain targeting antibodies on LNP surfaces in vivo; a higher molecular weight anchor is required
Brian K. Wilson, Lucas D. Johnson, Jason Liu, Nicholas J. Caggiano, Nikhil Subraveti, Karthik Nagapudi, Andrew Tsourkas, Robert K. Prud’homme, Kurt D. Ristroph
This study shows that DSPE-PEG fails to retain mAbs on LNPs in vivo, while a higher molecular weight PCL-b-PEG anchor maintains stability, highlighting the importance of anchoring strength for extrahepatic delivery.
bioRxiv · Jul 8, 2026 · PreprintPharmacology & Toxicology