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:
Antisense compositions targeted against an mRNA sequence coding for a selected protein, at a region having its 5′ end from 1 to about 25 base pairs downstream of a normal splice acceptor junction in the preprocessed mRNA, are disclosed. The antisense compound is RNase-inactive, and is preferably a phosphorodiamidate-linked morpholino oligonucleotide. Such targeting is effective to inhibit natural mRNA splice processing, produce splice variant mRNAs, and inhibit normal expression of the protein.
摘要:
A method for enhancing, by at least 10 fold, the antibacterial activity of an antisense oligonucleotide composed of morpholino subunits linked by phosphorus-containing intersubunit linkages. The method includes one or both of: conjugating an arginine-rich carrier to a 3′ or 5′ end of the oligonucleotide and modifying the oligonucleotide to contain 20%-50% intersubunit linkages that are positively charged at physiological pH. Also disclosed is an antisense oligonucleotide having enhanced antibacterial activity by virtue of one or both modifications.
摘要:
Provided are antisense oligonucleotides and other agents that target and modulate IL-17 and/or IL-23 signaling activity in a cell, compositions that comprise the same, and methods of use thereof. Also provided are animal models for identifying agents that modulate 17 and/or IL-23 signaling activity.
摘要:
An antibacterial antisense conjugate and method of using the same for treating a bacterial infection in a mammalian host are disclosed. The conjugate includes an antisense oligonucleotide conjugated to a carrier peptide that significantly enhances the antibacterial activity of the oligonucleotide. The antisense oligonucleotide contains 10-20 nucleotide bases and has a targeting nucleic acid sequence complementary to a target sequence containing or within 10 bases, in a downstream direction, of the translational start codon of a bacterial mRNA that encodes a bacterial protein essential for bacterial replication, where the compound binds to a target mRNA with a Tm of between 50° to 60° C. The carrier peptide is an arginine-rich peptide containing between 6 and 12 amino acids.
摘要:
A method and conjugate for selectively killing antigen-activated T cells are disclosed. The conjugate is composed of a substantially uncharged antisense compound targeted against the human cFLIP protein, and a reverse TAT (rTAT) polypeptide coupled covalently to the antisense compound. The rTAT polypeptide is effective to produce selective uptake of the conjugate into antigen-activated T cells, relative to the uptake of the conjugate into non-activated T cells. The cFLIP antisense compound causes activation induced cell death (AICD) of activated lymphocytes. The method is useful in treating transplantation rejection and autoimmune conditions.
摘要:
Compositions and methods for enhancing delivery of molecules, e.g. biological agents, into cells are described. The composition is a conjugate of the biological agent, preferably a nucleic acid analog having a substantially uncharged backbone, covalently linked to a peptide transporter moiety as described. Conjugation of the peptide transporter to a substantially uncharged nucleic acid analog, such as a morpholino oligomer, is also shown to enhance binding of the oligomer to its target sequence and enhance antisense activity.
摘要:
The invention provides sense antiviral compounds and methods of their use in inhibition of growth of viruses of the Flaviviridae, Picornoviridae, Caliciviridae, Togaviridae, Coronaviridae families and hepatitis E virus in the treatment of a viral infection. The sense 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 3′-terminal end (40) bases of the negative-sense RNA strand of the virus.
摘要:
A method and composition for treating colorectal cancer is disclosed. The method involves administering to a subject, a therapeutically effective amount of a morpholino antisense compound (i) having a nuclease-resistant backbone, (ii) capable of uptake by target cancer cells in the subject, (iii) containing between 10-40 nucleotide bases, and (iv) having a base sequence effective to hybridize to a region of processed or preprocessed human SNAIL RNA transcript.
摘要:
The invention relates to compositions comprising oligomers antisense to bacterial 16S or 23S rRNA and capable of selectively modulating the biological activity thereof, and methods for their use. More particularly, the invention relates to antisense oligomers directed to 16S or 23S rRNA found in one or more particular bacteria, or generally conserved among bacteria in general, and to pharmaceutical compositions and methods of treatment comprising the same.