NUCLEIC ACID COMPLEX AND NUCLEIC ACID DELIVERY COMPOSITION

摘要

Provided is a nucleic acid complex comprising a nucleic acid and a highly branched cyclic dextrin, wherein the highly branched cyclic dextrin is a glucan with a degree of polymerization of 50 to 5000 having an inner branched cyclic structure portion formed from alpha-1,4-glucoside bonds and at least one alpha-1,6-glucoside bond, and an outer branched structure portion bound to the inner branched cyclic structure portion. The complex can be used in the manufacture of medicaments for siRNA delivery.