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.
摘要:
The invention relates to a new and improved pharmaceutical composition and method for delivery of therapeutic agents. The methods and composition of the invention can be used with several therapeutic agents and can achieve site specific delivery of a therapeutic substance. This can allow for lower doses and for improved efficacy with drugs which traditionally reach targeted sites and can result in utility for agents such as oligonucleotides which are plagued with problems in reaching targeted sites in necessary therapeutic levels. The delivery system includes gas-filled microbubbles formed in a nitrogen-free environment. Microbubbles formed through sonication in a nitrogen-free environment are smaller and more stable than microbubbles sonicated in the presence of room air.
摘要:
Morpholino oligomers containing modified intersubunit linkages and/or terminal groups are provided for use within dsRNA molecules. The oligomers are oligonucleotide analogs containing predetermined sequences of base-pairing moieties. Also provided are such oligomers conjugated to peptide transporter moieties, where the transporters are preferably composed of arginine subunits, or arginine dimers, alternating with neutral amino acid subunits.
摘要:
Morpholino oligomers containing modified intersubunit linkages and/or terminal groups are provided for use within dsRNA molecules. The oligomers are oligonucleotide analogs containing predetermined sequences of base-pairing moieties. Also provided are such oligomers conjugated to peptide transporter moieties, where the transporters are preferably composed of arginine subunits, or arginine dimers, alternating with neutral amino acid subunits.
摘要:
Antibacterial antisense compounds and methods of their use in treating a Mycobacterium tuberculosis infection in a mammalian host are disclosed. The compounds include an antisense oligonucleotide conjugated to a carrier peptide that significantly enhances the antibacterial activity of the oligonucleotide. The antisense oligonucleotides contain 10-20 nucleotide bases and have a targeting nucleic acid sequence complementary to a target sequence containing or within 20 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 45° to 60° C. The carrier peptide is an arginine-rich peptide containing between 6 and 14 amino acids. Antisense compounds that target host factor genes that facilitate Mycobacterium tuberculosis infection are also provided, as are methods of using these compounds to treat Mycobacterium tuberculosis infections, alone or in combination with other therapies.
摘要:
An antisense oligonucleotide compound, composition, vaccine and methods for treating a variety of conditions characterized by up-regulation of IL-10 in a mammalian subject are disclosed. The compound (i) is composed of morpholino subunits and phosphorus-containing intersubunit linkages joining a morpholino nitrogen of one subunit to a 5′ exocyclic carbon of an adjacent subunit, (ii) is capable of uptake by monocytes, lymphocytes, and dendritic cells in a mammalian subject, (iii) contains between 10-40 nucleotide bases, and (iv) has a base sequence effective to hybridize to at least 12 contiguous bases of a target sequence contained in an exon-2 or exon-4 slice site region of human IL-10 pre-mRNA.
摘要:
An antisense oligonucleotide compound, composition, vaccine and methods for treating a variety of conditions characterized by up-regulation of IL-10 in a mammalian subject are disclosed. The compound (i) is composed of morpholino subunits and phosphorus-containing intersubunit linkages joining a morpholino nitrogen of one subunit to a 5′ exocyclic carbon of an adjacent subunit, (ii) is capable of uptake by monocytes, lymphocytes, and dendritic cells in a mammalian subject, (iii) contains between 10-40 nucleotide bases, and (iv) has a base sequence effective to hybridize to at least 12 contiguous bases of a target sequence contained in an exon-2 or exon-4 slice site region of human IL-10 pre-mRNA.
摘要:
Cell-penetrating peptides useful for targeting a therapeutic compound to a selected mammalian tissue, methods for their identification, methods of forming conjugate compounds containing such peptides, and conjugates formed thereby are disclosed. The cell-penetrating peptides are 8 to 30 amino acid residues in length and consist of subsequences selected from the group consisting of RXR, RX, RB, and RBR; where R is arginine, B is β-alanine, and each X is independently —C(O)—(CHR1)n—NH—, where n is 4-6 and each R1 is independently H or methyl, such that at most two R1's are methyl. In one embodiment, X is a 6-aminohexanoic acid residue.
摘要:
A method of treating polycystic kidney disease by administering an oligonucleotide antisense to c-myc is described. The antisense oligonucleotide is preferably a morpholino oligonucleotide.
摘要:
A method is described for improving the pharmacokinetics of a drug in a subject, by co-administering oligomers, preferably PMO's (phosphorodiamidate morpholino oligonucleotides), antisense to RNAs encoding drug-metabolizing enzymes, particularly p450 enzymes. The oligomers reduce production of the drug-metabolizing enzymes, which extends drug half-life and effectiveness and/or decreases drug toxicity.