A nanohybrid of the potent
gene therapeutic agent siRNA (
small interfering RNA) and a target-specific layered inorganic
hydroxide, a preparation method thereof, and a pharmaceutical composition for tumor treatment containing the target-specific, siRNA / layered inorganic
hydroxide nanohybrid. The nanohybrid increases the
in vivo stability of the siRNA, and a target-specific multifunctional ligand, which is bonded to the layered inorganic
hydroxide and can bind specifically to a tumor, increases the efficiency of tumor-specific transfer of the siRNA such that the siRNA shows tumor therapeutic activity even at a relatively
low dose. Thus, the nanohybrid will be widely useful for target-specific antitumor therapies.