摘要:
Homo-oligomeric 5-fluorouridine and 5-fluorodeoxyuridine (FrU.sub.n and FdU.sub.n, n=oligomer length) are synthesized and used as a polymeric drug delivery system for production of FdUMP, the potent inhibitor of thymidylate synthase (TS) and an important target in cancer chemotherapy. Disclosed are methods of both preparing and utilizing said compositions.
摘要:
A method of inhibiting proliferation of immortal cells or cells that express telomerase is disclosed. The method includes introduction of synthetic oligonucleotides which mimic telomere motifs. Quite surprisingly applicant has demonstrated that a single telomere motif, TTAGGG exhibits greater cellular uptake and higher inhibition of proliferation than longer oligonucleotides, which were previously thought to be necessary to achieve sequence specific interaction with telomerase.
摘要:
The present invention relates to methods and compositions for the treatment of cancer using an oligonucleotide and an hydroxyl radical up-regulator. The oligonucleotide is characterized by its ability to down-regulate the path by which the cell repairs oxidative damage to its DNA. Thus, the oligonucleotide renders the tumor cells more susceptible to eradication upon exposure to the hydroxyl radical up-regulator administered substantially concomitantly with or subsequent to administration of the oligonucleotide. This novel treatment, preferentially inhibits the proliferation or kills malignant cells but not normal cells. Preferably, the oligonucleotide is antisense to the gene which encodes protein p53, although other antisense oligonucleotides can also be used. The invention also includes novel conjugates of the oligonucleotide and the hydroxyl up-regulator, as well as new oligonucleotides.
摘要:
The present invention discloses novel methods and compositions useful for removing toxic heavy metals from a host organism containing detectable levels of such heavy metals. The method comprises administering to the host organism a therapeutically effective amount of a heavy-metal binding agent which, when saturated with heavy metal atoms, is readily excreted from the body. In a preferred embodiment of the present invention, the binding agent is an oligomeric phosphorothioate oligonucleotide.
摘要:
Homo-oligomeric 5-fluorouridine and 5-fluorodeoxyuridine (FrU.sub.n and FdU.sub.n, n=oligomer length) are synthesized and used as a polymeric drug delivery system for production of FdUMP, the potent inhibitor of thymidylate synthase (TS) and an important target in cancer chemotherapy. Disclosed are methods of both preparing and utilizing said compositions.
摘要:
The present invention provides antisense antiviral compounds, compositions, and methods of their use and production, mainly for inhibiting the replication of viruses of the Filoviridae family, including Ebola and Marburg viruses. The compounds, compositions, and methods also relate to the treatment of viral infections in mammals including primates by Ebola and Marburg viruses. The antisense antiviral compounds include phosphorodiamidate morpholino oligonucleotides (PMOplus) having a nuclease resistant backbone, about 15-40 nucleotide bases, at least two but typically no more than half piperazine-containing intersubunit linkages, and a targeting sequence that is targeted against the AUG start site region of Ebola virus VP35, Ebola virus VP24, Marburg virus VP24, or Marburg virus NP, including combinations and mixtures thereof.
摘要:
Provided are methods and antisense oligonucleotide analogs for suppressing an immune response in a mammalian subject, for the treatment or prevention of an autoimmune condition or transplantation rejection. The oligonucleotide analogs provided herein comprise a targeting sequence complementary to a preprocessed CTLA-4 mRNA region that spans the splice junction between intron 1 and exon 2 of the preprocessed CTLA-4 mRNA. Also provided are methods of use, in which the oligonucleotides are effective, when administered to a subject, to form within host cells, a heteroduplex structure (i) composed of the preprocessed CTLA-4 mRNA and the oligonucleotide compound, (ii) characterized by a Tm of dissociation of at least 45° C., and (iii) resulting in an increased ratio of processed mRNA encoding ligand-independent CTLA-4 to processed mRNA encoding full-length CTLA-4.
摘要:
A therapeutic oligomer-peptide conjugate, and methods of using the conjugate are disclosed. The conjugate includes (a) a substantially uncharged oligonucleotide analog compound having a base sequence that includes a string of bases that are complementary to four or more contiguous cytosine bases in a target nucleic acid region to which the compound is intended to bind, and (b) conjugated to the compound, an arginine-rich peptide effective to enhance the uptake of the compound into target cells. The string of bases in the compound includes at least one inosine base positioned in the string so as to limit the number of contiguous guanine bases in said string to three or fewer. The conjugate has greater cellular uptake than the compound alone, by virtue of the arginine-rich peptide, and substantially greater antisense activity greater activity than the conjugate in the absence of inosine-for guanine substitutions.
摘要:
The invention provides antisense antiviral compounds and methods of their use and production in inhibition of growth of viruses of the Flaviviridae, Picornoviridae, Caliciviridae, Togaviridae, Arteriviridae, Coronaviridae, Astroviridae and Hepeviridae families in the treatment of a viral infection. The antisense antiviral compounds are substantially uncharged morpholino oligonucleotides having a sequence of 12-40 subunits, including at least 12 subunits having a targeting sequence that is complementary to a region associated with stem-loop secondary structure within the 5′-terminal end 40 bases of the positive-sense RNA strand of the virus.
摘要:
The invention provides antisense antiviral compounds and methods of their use and production in inhibition of growth of viruses of the Picornaviridae family and in the treatment of a viral infection. The compounds are particularly useful in the treatment of Enterovirus and/or Rhinovirus infection in a mammal. The antisense antiviral compounds are substantially uncharged, including partially positively charged, morpholino oligonucleotides have a sequence of 12-40 subunits, including at least 12 subunits having a targeting sequence that is complementary to a region associated with viral RNA sequences within a 32 nucleotide region of the viral 5′ untranslated region identified by SEQ ID NO:4.
摘要翻译:本发明提供反义抗病毒化合物及其在抑制小核糖核酸病毒科家族病毒生长和用于病毒感染治疗中的用途和生产方法。 所述化合物特别可用于治疗哺乳动物中的肠病毒和/或鼻病毒感染。 反义抗病毒化合物是基本上不带电的,包括部分带正电荷的吗啉代寡核苷酸具有12-40个亚基的序列,包括至少12个亚基,其具有与与32个核苷酸区域内的病毒RNA序列相关的区域互补的靶向序列 由SEQ ID NO:4鉴定的病毒5'非翻译区。