摘要:
The invention relates to iRNA agents, which preferably include a monomer in which the ribose moiety has been replaced by a moiety other than ribose. The inclusion of such a monomer can allow for modulation of a property of the iRNA agent into which it is incorporated, e.g., by using the non-ribose moiety as a point to which a ligand or other entity, e.g., a lipophilic moiety. e.g., cholesterol, is directly, or indirectly, tethered. The invention also relates to methods of making and using such modified iRNA agents.
摘要:
The present invention relates to novel multimeric inhibitors of viral entry into cells and their use for the prophylaxis and treatment of viral infections.
摘要:
This application relates to iRNA agents and methods of making and using the agents. The iRNA agent comprises a sense sequence and an antisense sequence. The antisense strand and/or the sense strand may contain formula (8) or its L-nucleoside or 2′-5′ linkage isomer: The iRNA agents of the invention can present increased nuclease resistance.
摘要:
A method for treating a disease or disorder associated with altered glucose metabolism or insulin action in a subject in need thereof. The method includes administering to the subject a BAFAC (bile acid or bile salt fatty acid conjugate) of general formula II: W-X-G in which G is a bile acid or bile salt radical, which is optionally conjugated in position 24 with a suitable amino acid, W stands for one or two fatty acid radicals, each having from 14-22 carbon atoms, and X is a suitable bonding member or a direct C═C bond between G and each W, said suitable bonding member being selected from the group consisting of NH, O, P and S. The disease or disorder associated with altered glucose metabolism is selected from the group consisting of hyperglycemia, diabetes, insulin resistance and obesity.
摘要:
A multifunctional molecular complex for the transfer of a nucleic acid composition to a target cell is provided. The complex is comprised of A) said nucleic acid composition and B) a transfer moiety comprising 1) one or more cationic polyamines bound to said nucleic acid composition, 2) one or more endosome membrane disrupting components attached to at least one nitrogen of the polyamine and 3) one or more receptor specific binding components.
摘要:
Novel cationic amphiphiles are provided that facilitate transport of biologically active (therapeutic) molecules into cells. The amphiphiles contain lipophilic groups derived from steroids, from mono or dialkylamines, or from alkyl or acyl groups; and cationic groups, protonatable at physiological pH, derived from amines, alkylamines or polyalkylamines. There are provided also therapeutic compositions prepared typically by contacting a dispersion of one or more cationic amphiphiles with the therapeutic molecules. Therapeutic molecules that can be delivered into cells according to the practice of the invention include DNA, RNA, and polypeptides. Representative uses of the therapeutic compositions of the invention include providing gene therapy, and delivery of antisense polynucleotides or biologically active polypeptides to cells. With respect to therapeutic compositions for gene therapy, the DNA is provided typically in the form of a plasmid for complexing with the cationic amphiphile. Novel and highly effective plasmid constructs are also disclosed, including those that are particularly effective at providing gene therapy for clinical conditions complicated by inflammation. Additionally, targeting of organs for gene therapy by intravenous administration of therapeutic compositions is described.
摘要:
The compositions and methods disclosed herein provide heterobifunctional programmable genotoxic compounds that can be designed to kill selected cells present in a heterogenous cell population. The present compounds comprise a first agent that inflicts damage on cellular DNA, and a second agent that attracts a macromolecular cell component such as a protein, which in turn shields genomic lesions from repair. Unrepaired lesions therefore persist in the cellular genome and contribute to the death of selected cells. In contrast, lesions formed in nonselected cells, which lack the cell component, are unshielded and thus are repaired. As a result, compounds described herein are less toxic to nonselected cells. Compounds of this invention can be designed to cause the selective killing of transformed cells, viral-infected cells and the like.
摘要:
Preparations of drugs in admixture with certain ligands are described which, when administered to animals or humans, are less toxic than conventional drug preparations. Although the toxicity of the drug-ligand preparations described is greatly reduced, the drug retains pharmacological activity.
摘要:
Preparations of drugs in admixture with certain ligands are described which, when administered to animals or humans, are less toxic than conventional drug preparations. Although the toxicity of the drug-ligand preparations described is greatly reduced, the drug retains pharmacological activity.