摘要:
The present invention relates to new vectors, pharmaceutical compositions containing them, and their therapeutical uses. More particularly, it relates to double strand DNA molecules coding for an RNA forming a triple helix with a single strand target nucleic acid. Said molecules act very selectively and efficiently on the expression of genes.
摘要:
The invention relate to the use of a compound of formula A-B-C Wherein A is a DNA sequence-specific ligand capable of simultaneously and specifically recognizing a sequence common to genes of pathological interest; B is a linker arm, said linker arm being bound to the 3' end of A; C is a topoisomerase I posion; for the preparation of a drug for the treatment of a disease brought about by the expression of a gene and said gene is inhibited by the stabilized topoisomerase I-mediated DNA cleavage. Application, particularly, for the treatment of infective microorganism or virus, dismetabolic disease and autoimmune disease.
摘要:
Chemical compounds comprised of an oligonucleotide or an oligodioxinucleotide. According to the invention, they comprise a chain of nucleotides with an anomeric unnatural alpha configuration. The invention also relates to a chain of alpha nucleotides which is linked by a covalent bond to an effector agent, particularly to an intercalating radical or to a chemical photoactivatable or reactive radical. The invention also relates to an application of the compounds, application according to which they couple in parallel to a complementary sequence of beta oligonucleotides. These compounds are usable as probes or as artifical nucleases specific of sequences of nucleic acids. They may be used to selectively lock the expression of a previously selected gene by acting either on the genetic information or on the messenger RNAs.
摘要:
The invention concerns the use of aromatic compounds capable of binding with G-quadruplex structures to produce medicines with anti-telomerase effect. Said compounds correspond to formula (I) wherein: R1, R2 and R3, identical or different, represent a hydrogen atom, or a -CH2-NH-(CH2)n-X group, wherein n is an integer from 2 to 4, and X is selected among -NH2-, -N(CH3)2 radicals, a heterocyclic radical such as piperidyl, imidazolyl, morpholinyl radical, or an indole-type condensed heterocyclic radical, -Z represents CH or N, each compound comprising two nitrogen atoms in the Z positions. The invention is useful for producing anticancer medicines.