NUCLEIC ACID DELIVERY SYSTEM Russian patent published in 2007 - IPC A61K9/127 A61K31/343 A61K31/505 A61K31/538 C12N15/12 A61P35/00 

FIELD: chemical-pharmaceutical industry, biochemistry, medicine.

SUBSTANCE: invention relates to a liposome directly effecting on α_vβ₃-integrin receptors and comprising cationic amphiphilic substance including 1,2-dioleoyloxy-3-(N,N,N-trimethylammonium)propane chloride, neutral lipid, lipid with a direct effect having domain with a direct effect and hydrophobic domain bound with domain of a direct effect, and nucleic acid forming complex with cationic lipid. Cationic lipid presents in the amount from about 1 to about 50 molar % and indicated lipid with a direct effect presents in the amount from about 1 to about 20 molar % wherein molar percents are calculated as measured for the total number of lipid moles in liposome. Domain with a direct effect comprises a nonpeptide antagonist of α_vβ₃-integrin comprising 4-[2-(3,4,5,6-tetrahydropyrimidin-2-ylamino)ethyloxy]-benzoyl-2-(S)-aminoethylsulfonamino-β-alanine (compound 10) bound covalently with hydrophilic domain by amide bond. Also, invention relates to a method for inhibition of angiogenesis and involving administration to a patient needing in inhibition of angiogenesis a liposome in the therapeutically effective dose that directly effects on α_vβ₃-integrin receptors and comprising nucleic acid that is able to express a protein or peptide suppressing angiogenesis.

EFFECT: valuable properties of system.

27 cl, 2 tbl, 18 dwg, 8 ex