Process for producing modified reconstituted sendai viral envelope specific for drug and/or gene delivery to liver cells

摘要

A process for producing a targeted gene and/or drug delivery system for liver cells comprising the steps of: i. chemical reduction of Sendai virus for reduction of HN protein; ii. subjecting the reduced virus to the step of dialysis for removal of the reducing agent; iii. solubilizing the reduced virus with a detergent to obtain a solution; iv. centrifuging the solution to separate the insolubles consisting of reduced HN protein and core of said virus; v. adding histidylated lipid to the supernatant; vi. adding the drug or gene after addition of the lipid; vii. removing the detergent from the envelope and then subjecting it to the step of centrifugation to obtain His lipid F-virosomes with entrapped drug or DNA.