摘要:
The invention relates to the use of nucleotide substitutes for increasing the in vivo efficacy of nucleic acid molecules and also for inhibiting inflammation in mammals. More particularly, the present invention relates to the use of 2'6'diaminopurine (DAP) and analogs thereof per se in anti-inflammatory compositions, and also for preparing nucleic acid molecules having an increased in vivo physiological efficiency and a reduced toxicity as compared to conventional oligos. The invention is particularly useful for the preparation of antisense oligonucleotides for treating pulmonary/respiratory diseases such as cystic fibrosis, asthma, chronic bronchitis, chronic obstructive lung disease, eosinophilic bronchitis, allergies, allergic rhinitis, pulmonary fibrosis, adult respiratory distress syndrome, sinusitis, respiratory syncytial virus or other viral respiratory tract infection and cancer.
摘要:
This invention presents novel purine-based compounds for inclusion into oligonucleotides. The compounds of the invention, when incorporated into oligonucleotides are especially useful as 'antisense' agents -- agents that are capable of specific hybridization with a nucleotide sequence of an RNA. Oligonucleotides are used for a variety of therapeutic and diagnostic purposes, such as treating diseases, regulating gene expression in experimental systems, assaying for RNA and for RNA products through the employment of antisense interactions with such RNA, diagnosing diseases, modulating the production of proteins, and cleaving RNA in site specific fashions. The compounds of the invention include novel heterocyclic bases, nucleosides, and nucleotides. When incorporated into oligonucleotides, the compounds of the invention can be useful for modulating the activity of RNA.
摘要:
Compositions and methods for modulating the activity of RNA are disclosed. In accordance with preferred embodiments, antisense compositions are prepared comprising targeting and reactive portions. The reactive portions preferably comprise one or two imidazole functionalities conjugated to the targeting oligonucleotide via linkers with or without intervening intercalating moieties. Therapeutics, diagnostics and research methods also are disclosed, as are synthetic nucleosides and nucleoside fragments that can be elaborated into oligonucleotides.
摘要:
Nucleosides and linked nucleosides functionalized to include alkylthiol chemical functionality at ribofuranosyl positions, nucleosidic base positions, or on internucleoside linkages. In certain embodiments, the compounds of the invention further include steroids, reporter molecules, reporter enzymes, lipophilic molecules, peptides or proteins attached to the nucleosides through the alkylthio group.
摘要:
Compositions et procédés de modulation de l'expression du gène ras humain sous forme normale et activée; oligonucléotides à hybridation spécifique avec l'ARN ou l'ADN dérivé du gène ras humain, possédant des unités nucléotidiques dont l'identité et le nombre sont suffisants pour assurer cette hybridation spécifique; oligonucléotides ou analogues oligonucléotidiques à hybridation spécifique avec un site d'initiation de translation ou avec la mutation du codon-12 du ras activé, ces oligonucléotides ou analogues oligonuclétidiques pouvant être utilisés pour le diagnostic ainsi qu'à des fins de recherche; procédés de modulation de l'expression du gène ras dans les cellules et les tissus à l'aide des oligonucléotides et des analogues oligonucléotidiques prévus, et de modulation spécifique de l'expression du gène ras activé; et procédés de diagnostic, de détection et de traitement des affections dues à l'activation du gène H-ras.
摘要:
The present invention relates to pyrazolotriazolyl nucleoside analogues, oligonucleotide comprising them, and uses thereof. Further the invention relates to a method for reducing gene expression in a cell comprising transfecting the cell with such an oligonucleotide.
摘要:
The present invention relates to modified guide RNAs and their use in clustered, regularly interspaced, short palindromic repeats (CRISPR)/CRISPR-associated (Cas) systems.
摘要:
There is provided herein, an oligonucleotide directed against a target gene, wherein the oligonucleotide is capable of hybridizing to at least a portion of a nucleic acid sequence encoding the gene under stringent conditions, and wherein, at least one nucleotide of the oligonucleotide is 2-amino-2'- deoxyadenosine (DAP); and the internucleoside linkages of the oligonucleotide comprises at least three alternating segments, each segment consisting of either at least one phosphorothioate or at least one phosphodiester bond.