摘要:
This invention pertains to modified compositions for use in CRISPR systems, and their methods of use. In particular, length-modified and chemically-modified forms of crRNA and tracrRNA are described for use as a reconstituted guide RNA for interaction with Cas9 of CRIPSR systems. The resultant length-modified and chemically-modified forms of crRNA and tracrRNA are economical to produce and can be tailored to have unique properties relevant to their biochemical and biological activity in the context of the CRIPSR Cas9 endonuclease system.
摘要:
This invention provides compositions for use in distributing active agents for treating a malignant tumor in a subject. The compositions contain RNAi molecules targeted to a human GST-π, along with RNAi molecules targeted to a human p21, and a pharmaceutically acceptable carrier. The carrier can include nanoparticles composed of an ionizable lipid, a structural lipid, one or more stabilizer lipids, and a lipid for reducing immunogenicity of the nanoparticles. This invention further provides methods for preventing or treating a malignant tumor by administering a therapeutically effective amount of an RNAi composition
摘要:
This invention provides methods and compositions for preventing, treating or ameliorating one or more symptoms of a malignant tumor associated with KRAS mutation in a mammal in need thereof, by identifying a tumor cell in the mammal, the tumor cell comprising at least one of: (i) a mutation of the KRAS gene, and (ii) an aberrant expression level of KRAS protein; and administering to the mammal a therapeutically effective amount of a composition comprising one or more RNAi molecules that are active in reducing expression of GST-π.
摘要:
The invention relates to iRNA, e.g., double-stranded ribonucleic acid (dsRNA), compositions targeting the Serpinc1 gene, and methods of using such iRNA, e.g., dsRNA, compositions to inhibit expression of Serpinc1 and to treat subjects having a Serpinc1-associated disease, e.g., a bleeding disorder, such as a hemophilia.
摘要:
The present invention provides oligomers that binds RNA that consists of a lower affinity region and a higher affinity region, wherein the monomers in the higher affinity region increases the melting temperature (i.e. affinity) of the oligomer base paired to RNA more than the monomers used in the lower affinity region, wherein said increase in melting temperature is relatively to the alternative use of DNA monomers of the same (base) sequence. The oligomers of the invention are useful for binding to target RNA such as mRNA and non-coding RNA and have the advantage that they will be less prone to off-target binding via the lower affinity region than via the higher affinity region.
摘要:
Compositions including a polynucleotide combined with a vehicle and methods of their use to induce a suppressive immune response are provided. In some embodiments the compositions induce an increase in expression of indoleamine 2,3 dioxygenase (IDO) enzyme activity in cells. The methods and compositions can be used to inhibit or reduce immune- mediated tissue destruction, to treat autoimmune diseases and inflammatory responses, to promote immune tolerance, to enhance tolerizing vaccines, to treat allergies, to treat asthma, or to enhance mucosal tolerance in subject. Methods and compositions for inducing a suppressive immune response for while minimizing undesirable side effects in the subject are also provided. An exemplary undesirable side effect is systemic release of INFgamma. Exemplary compositions that can be used to induce an immune response in a subject without inducing systemic release of INFgamma include compositions containing a polynucleotide lacking an immunostimulatory nucleic acid sequence complexed with a carrier.
摘要:
Provided in this application are formulations of double stranded RNA molecules and Krebs Cycle analogs that improving ribonuclease stability, reducing off-target effects of a double stranded siRNA molecule, or of reducing interferon responsiveness of a double stranded siRNA molecule using such dsRNA. Also disclosed are methods of treating a primary tumor or a metastasis by contacting circulating tumor cells, a primary tumor, or a metastasis with a described formulation.
摘要:
The present disclosure relates to methods of treating heat shock factor 1 (HSF1)-related diseases such as cancer and viral diseases, using a therapeutically effective amount of a RNAi agent to HSF.
摘要:
Provided are methods and compositions for the treatment or prevention of macular degeneration or other diseases or disorders associated with activation of TLR3. Administration of double-stranded RNAs having a length of 22 nucleotides or less treats or prevents macular degeneration or other diseases or disorders associated with activation of TLR3 due to the ability of the RNAs to bind to but not activate TLR3. Furthermore, all double-stranded RNAs (both targeted and non- targeted) of 22 nucleotides or less in length can bind to but not activate TLR3 and thereby treat or prevent such conditions. Also provided is a method for increasing the specificity of a desired siRNA target knockdown, the method comprising administering an amount of a target siRNA sufficient to knockdown a target gene and an amount of a double stranded RNA of 22 nucleotides or less which prevents the target siRNA from activating TLR3.