Method for diagnosing and treating cancer brain metastasis and drug delivery system for enabling passage through blood-brain barrier

摘要

A method increases permeability of a blood-brain barrier in a subject. The method includes administering a small interfering ribonucleic acid (siRNA) against the 3-Phosphoinositide Dependent Protein Kinase 1 (PDPK1) gene or micro ribonucleic acid (miRNA) miR-181c as an active ingredient to the subject. The method can be applied for delivering a desired active agent to the subject.