摘要:
The present invention relates to PNA derivatives which carry, at the N terminus of the PNA backbone, a phosphoryl radical. The phosphoryl radical can be, for example, a phosphate radical, or a substituted phosphoryl radical, with substituted phosphoryl derivatives carrying, where appropriate, one or more labeling groups, groups for crosslinking, groups which promote intracellular uptake, or groups which increase the binding affinity of the PNA derivative for nucleic acids. The invention furthermore relates to a process for preparing the abovementioned PNA derivatives and to their use as pharmaceuticals and diagnostic agents.
摘要:
The invention provides a processes for the preparation of a compound of Formula I, or a salt thereof wherein PG is a urethane- or trityl-type protective group; X is NH, O, or S; Y is CH2, O, or NH; and B′ is a base customary in nucleotide chemistry. The processes include reacting a compound of Formula (II) with a compound of Formula (III) a compound of Formula (V) B′—CH2—CO—R2 (V), a monohaloacetic acid derivative in a suitable solvent with an auxiliary base, or a compound of Formula (VII) B′—CH2—CO—R3 (VII), and converting the resulting compounds to that of Formula I.
摘要:
The invention provides compounds and processes for synthesis of peptide nucleic acids (PNA). The compounds include temporary amino protecting groups that are base-labile, and protection groups for the exocyclic amino function of the nucleotide base that is compatible with the base-labile amino protecting group. Cleavage of an oligomer comprising these compounds from a solid support can be achieved using weak or medium strength acids.
摘要:
Oligonucleotides of the formula5'-(CAP)-(Oligo)-(CAP)-3'are disclosed where (oligo) is a nucleotide sequence of from 10 to 40 nucleotides in length, and CAP is G.sub.m, where m is an integer of from zero to ten, the two CAP's which are present in the molecule can be defined independently of each other and must be different in the case where m is zero at the 5' or 3' end and the end of the Oligo sequence is other than guanine. The oligonucleotides can be synthesized chemically. The oligonucleotides are used to diagnose or treat cancer, restenosis, a disease caused by a virus, a disease affected by integrins or cell-cell adhesion receptor or a disease triggered by diffusible factors.
摘要:
Fusion proteins are obtained in high yields if a mixed oligonucleotide is constructed which codes for the ballast constituent of the fusion protein. The oligonucleotide mixture is introduced in a vector in such a manner that it is functionally linked to a regulatory region and to the structural gene for the desired protein. Appropriate host cells are transformed with the plasmid population obtained in this manner and the clones producing a high yield of coded fusion protein are selected.
摘要:
The present invention relates to PNA derivatives which carry, at the C terminus, or at both the C and N termini of the PNA backbone, one or more phosphoryl radicals. The phosphoryl radicals carry, where appropriate, one or more labeling groups, groups for crosslinking, groups which promote intracellular uptake, or groups which increase the binding affinity of the PNA derivative for nucleic acids. The invention furthermore relates to a process for preparing the above-mentioned PNA derivatives and to their use as pharmaceuticals or diagnostic agents.
摘要:
The invention relates to oligonucleotides including at least one lipophilic substituted nucleotide analog and a pyrimidine-purine dinucleotide. The invention also relates to pharmaceutical compositions and methods of use thereof.
摘要:
The present invention relates to oligoribonucleotide derivatives which have a 2′5′-linked oligoribonucleotide residue without a 5′-phosphate residue on the 3′ end and to the use thereof for specific inhibition of gene expression.
摘要:
Compositions and methods are provided for enhancing delivery of therapeutic agents. More specifically, compositions and methods are provided for improving antigen delivery to antigen-presenting cells. Conjugates between abasic oligonucleotides and antigen are provided, along with methods for their use in vaccination and in the treatment of cancer, infection, and allergy and asthma. Also provided are conjugates between abasic oligonucleotides and various immunostimulatory nucleic acids, including CpG oligonucleotides, as well as methods of use thereof. Also provided are conjugates between abasic oligonucleotides and various other agonists and antagonists of immunostimulation, as well as methods of use thereof.