RE:RE:RE:Engineered (modified) OV face significant development issuesAny application of mRNA-based cancer vaccines is not seen in the forseeable future due to several development chanllenges/problems already discussed including the instability of mRNA, immunogenicity, the inefficiency of in-vivo delivery, the personalization of the therapy, the time to process the patient's neoantigens into a bespoke cancer vaccine (1-2 months), and the inablity to reach economies of scale in multiple/diverse cancer tumors.