Protiva Biotherapeutics Inc.
This article was originally published in Start Up
Executive Summary
Protiva Biotherapeutics is using liposomes to deliver plasmids, or pieces of DNA. The liposome cover does two things; it protects the plasmid from being quickly degraded in the circulation. And it improves targeting to tumors, since liposomes gather preferentially at sites of vascular leakage--generally the disorganized vasculatures of tumors.