Abstract: The present invention relates to a new class of cationic polymers that self-assemble with a pH-sensitive dissolution switch, and their uses to deliver molecules of interest to a cell. The present invention also relates to compositions comprising said cationic polymers non-covalently associated with a molecule of interest, in particular with a siRNA.

Abstract: The invention relates to novel compounds, in particular novel O-substituted phospholipids that are useful for the in vitro and in vivo delivery of drugs as well as nucleic acids into cells. The invention also relates to pharmaceutical compositions and supramolecular complexes comprising said compounds and the use of these compounds in therapeutic treatment, in particular in gene therapy.

Abstract: Iodinated amphiphilic compound of formula (I): AG1-X—R??(I) wherein AG1 represents an unsaturated (C8-C52) aliphatic hydrocarbon chain found in fatty acids having specific location of double bonds, the chain including at least one iodine atom directly linked to a carbon atom of a non-conjugated double bond by a covalent link, the second carbon atom of the double bond bearing a halogen atom different from a iodine atom, X represents a polyethylene glycol including 1 to 50 ethylene glycol groups, R represents a hydrogen atom or a group AG2 being identical to or different from AG1, AG1, X, R and AG2 being selected so that the amphiphilic compound has a hydrophilic/lipohilic balance included between 4 and 30.

Abstract: The present invention relates to a new class of cationic polymers that self-assemble with a pH-sensitive dissolution switch, and their uses to deliver molecules of interest to a cell. The present invention also relates to compositions comprising said cationic polymers non-covalently associated with a molecule of interest, in particular with a siRNA.