Patents by Inventor Anastasia Khvorova

Anastasia Khvorova has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10167471
    Abstract: The invention relates to various PCSK9 RNAi constructs with gene silencing activities, and uses thereof. The construct has a double-stranded region of 19-49 nucleotides, preferably 25, 26, or 27 nucleotides, and preferably blunt-ended. The construct has selective minimal modifications to confer an optimal balance of biological activity, toxicity, stability, and target gene specificity. The sense strand may be modified such that the construct is not cleaved by Dicer or other RNAse III, and the entire length of the antisense strand is loaded into RISC In addition, the antisense strand may also be modified by 2?-O-methyl groups at the 2nd 5?-end nucleotide to greatly reduce off-target silencing. The constructs of the invention largely avoid the interferon response and sequence-independent apoptosis in mammalian cells, exhibits better serum stability, and enhanced target specificity.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: January 1, 2019
    Assignee: RXi Pharmaceuticals Corporation
    Inventors: Joanne Kamens, Anastasia Khvorova
  • Publication number: 20180371464
    Abstract: The present invention relates to RNAi constructs with improved tissue and cellular uptake characteristics and methods of use of these compounds in dermal and fibrotic applications.
    Type: Application
    Filed: March 12, 2018
    Publication date: December 27, 2018
    Applicant: RXi Pharmaceuticals Corporation
    Inventors: Anastasia Khvorova, William Salomon, Joanne Kamens, Dmitry Samarsky, Tod M. Woolf, Pamela A. Pavco, Lyn Libertine, James Cardia, Karen G. Bulock
  • Patent number: 10138485
    Abstract: Neutral lipid formulations for nucleic acid delivery are provided according to the invention. The neutral lipid formulations include hydrophobically modified polynucleotides and fat mixtures. Methods of using the neutral lipid formulations are also provided.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: November 27, 2018
    Assignee: RXi Pharmaceuticals Corporation
    Inventors: Anastasia Khvorova, William Salomon, Joanne Kamens, Dmitry Samarsky, Tod M. Woolf, Michelle Miller, Karen G. Bulock
  • Patent number: 10131904
    Abstract: The invention relates to improved RNAi constructs and uses thereof. The construct has a double stranded region of 19-49 nucleotides, preferably 25, 26, or 27 nucleotides, and preferably blunt-ended. The construct has selective minimal modifications to confer an optimal balance of biological activity, toxicity, stability, and target gene specificity. For example, the sense strand may be modified (e.g., one or both ends of the sense strand is/are modified by four 2?-O-methyl groups), such that the construct is not cleaved by Dicer or other RNAse III, and the entire length of the antisense strand is loaded into RISC. In addition, the antisense strand may also be modified by 2?-O-methyl group at the 2nd 5?-end nucleotide to greatly reduce off-target silencing. The constructs of the invention largely avoids the interferon response and sequence-independent apoptosis in mammalian cells, exhibits better serum stability, and enhanced target specificity.
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: November 20, 2018
    Assignee: RXi Pharmaceuticals Corporation
    Inventors: Pamela A. Pavco, Joanne Kamens, Tod M. Woolf, William Salomon, Anastasia Khvorova
  • Publication number: 20180327748
    Abstract: The present invention relates to RNAi constructs with improved tissue and cellular uptake characteristics and methods of use of these compounds in dermal applications.
    Type: Application
    Filed: February 26, 2018
    Publication date: November 15, 2018
    Applicant: RXi Pharmaceuticals Corporation
    Inventors: Anastasia Khvorova, William Salomon, Joanne Kamens, Dmitry Samarsky, Tod M. Woolf, Pamela A. Pavco, James Cardia
  • Publication number: 20180320182
    Abstract: Efficient sequence specific gene silencing is possible through the use of siRNA technology. By selecting particular siRNAs by rational design, one can maximize the generation of an effective gene silencing reagent, as well as methods for silencing genes. Methods, compositions, and kits generated through rational design of siRNAs are disclosed including those directed to nucleotide sequences for TTR.
    Type: Application
    Filed: July 17, 2018
    Publication date: November 8, 2018
    Inventors: Anastasia Khvorova, Angela Reynolds, Devin Leake, William Marshall, Steven Read, Stephen Scaringe
  • Patent number: 10041073
    Abstract: The present invention relates to RNAi constructs with minimal double-stranded regions, and their use in gene silencing. RNAi constructs associated with the invention include a double stranded region of 8-14 nucleotides and a variety of chemical modifications, and are highly effective in gene silencing. The RNAi constructs may be, for instance, miRNA constructs that are miRNA modulators.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: August 7, 2018
    Assignee: RXi Pharmaceuticals Corporation
    Inventors: Anastasia Khvorova, William Salomon, Joanne Kamens, Dmitry Samarsky, Tod M. Woolf, James Cardia
  • Publication number: 20180214474
    Abstract: Efficient sequence specific gene silencing is possible through the use of siRNA technology. Be selecting particular siRNAs by rational design, one can maximize the generation of an effective gene silencing reagent, as well as methods for silencing genes. Methods compositions, and kits generated through rational design of siRNAs are disclosed, including those directed to the nucleotide sequences for AAT.
    Type: Application
    Filed: November 27, 2017
    Publication date: August 2, 2018
    Inventors: Anastasia Khvorova, Angela Reynolds, Devin Leake, William Marshall, Steven Read, Stephen Scaringe
  • Publication number: 20180201934
    Abstract: Efficient sequence specific gene silencing is possible through the use of siRNA technology. Be selecting particular siRNAs by rational design, one can maximize the generation of an effective gene silencing reagent, as well as methods for silencing genes. Methods compositions, and kits generated through rational design of siRNAs are disclosed, including those directed to the nucleotide sequences for HAO1.
    Type: Application
    Filed: January 4, 2018
    Publication date: July 19, 2018
    Inventors: Anastasia Khvorova, Angela Reynolds, Devin Leake, William Marshall, Steven Read, Stephen Scaringe
  • Patent number: 10011836
    Abstract: Efficient sequence specific gene silencing is possible through the use of siRNA technology. Be selecting particular siRNAs by rational design, one can maximize the generation of an effective gene silencing reagent, as well as methods for silencing genes. Methods compositions, and kits generated through rational design of siRNAs are disclosed, including those directed to the nucleotide sequences for F12.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: July 3, 2018
    Assignee: Thermo Fisher Scientific Inc.
    Inventors: Anastasia Khvorova, Angela Reynolds, Devin Leake, William Marshall, Steven Read, Stephen Scaringe
  • Publication number: 20180179546
    Abstract: This disclosure relates to novel targets for angiogenic disorders. Novel oligonucleotides are also provided. Methods of using the novel oligonucleotides for the treatment of angiogenic disorders (e.g., preeclampsia) are also provided.
    Type: Application
    Filed: November 15, 2017
    Publication date: June 28, 2018
    Inventors: Anastasia Khvorova, Melissa Moore, Anton A. Turanov, Ananth Karumanchi
  • Publication number: 20180155718
    Abstract: The present invention relates to RNAi constructs and their use in gene silencing. RNAi constructs associated with the invention contain a double stranded region connected to a single stranded region of phosphorothioate modified nucleotides.
    Type: Application
    Filed: June 30, 2017
    Publication date: June 7, 2018
    Applicant: RXi Pharmaceuticals Corporation
    Inventors: Tod M. Woolf, Joanne Kamens, William Salomon, Anastasia Khvorova
  • Patent number: 9963702
    Abstract: The present invention relates to RNAi constructs with improved tissue and cellular uptake characteristics and methods of use of these compounds in dermal and fibrotic applications.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: May 8, 2018
    Assignee: RXi Pharmaceuticals Corporation
    Inventors: Anastasia Khvorova, William Salomon, Joanne Kamens, Dmitry Samarsky, Tod M. Woolf, Pamela A. Pavco, Lyn Libertine, James Cardia, Karen G. Bulock
  • Publication number: 20180119144
    Abstract: Efficient sequence specific gene silencing is possible through the use of siRNA technology. By selecting particular siRNAs by rational design, one can maximize the generation of an effective gene silencing reagent, as well as methods for silencing genes. Methods, compositions, and kits generated through rational design of siRNAs are disclosed including those directed to nucleotide sequences for TTR.
    Type: Application
    Filed: September 15, 2017
    Publication date: May 3, 2018
    Inventors: Anastasia Khvorova, Angela Reynolds, Devin Leake, William Marshall, Steven Read, Stephen Scaringe
  • Patent number: 9938530
    Abstract: The present invention relates to RNAi constructs with improved tissue and cellular uptake characteristics and methods of use of these compounds in dermal applications.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: April 10, 2018
    Assignee: RXi Pharmaceuticals Corporation
    Inventors: Anastasia Khvorova, William Salomon, Joanne Kamens, Dmitry Samarsky, Tod M. Woolf, Pamela A. Pavco, James Cardia
  • Publication number: 20180094263
    Abstract: This disclosure relates to novel huntingtin targets. Novel oligonucleotides for the treatment of Huntington's disease are also provided.
    Type: Application
    Filed: September 6, 2017
    Publication date: April 5, 2018
    Inventors: Anastasia Khvorova, Neil Aronin, Julia Alterman
  • Patent number: 9879266
    Abstract: Efficient sequence specific gene silencing is possible through the use of siRNA technology. Be selecting particular siRNAs by rational design, one can maximize the generation of an effective gene silencing reagent, as well as methods for silencing genes. Methods compositions, and kits generated through rational design of siRNAs are disclosed, including those directed to the nucleotide sequences for HAO1.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: January 30, 2018
    Assignee: Thermo Fisher Scientific Inc.
    Inventors: Anastasia Khvorova, Angela Reynolds, Devin Leake, William Marshall, Steven Read, Stephen Scaringe
  • Patent number: 9862952
    Abstract: This disclosure relates to novel targets for angiogenic disorders. Novel oligonucleotides are also provided. Methods of using the novel oligonucleotides for the treatment of angiogenic disorders (e.g., preeclampsia) are also provided.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: January 9, 2018
    Assignees: UNIVERSITY OF MASSACHUSETTS, BETH ISRAEL DEACONESS MEDICAL CENTER
    Inventors: Anastasia Khvorova, Melissa Moore, Anton A. Turanov, Ananth Karumanchi
  • Publication number: 20170369882
    Abstract: Provided herein are self-delivering oligonucleotides that are characterized by efficient RISC entry, minimum immune response and off-target effects, efficient cellular uptake without formulation, and efficient and specific tissue distribution.
    Type: Application
    Filed: August 30, 2017
    Publication date: December 28, 2017
    Inventors: Anastasia Khvorova, Neil Aronin, Matthew Hassler, Julia Alterman
  • Patent number: 9839649
    Abstract: Efficient sequence specific gene silencing is possible through the use of siRNA technology. Be selecting particular siRNAs by rational design, one can maximize the generation of an effective gene silencing reagent, as well as methods for silencing genes. Methods compositions, and kits generated through rational design of siRNAs are disclosed, including those directed to the nucleotide sequences for AAT.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: December 12, 2017
    Assignee: Thermo Fisher Scientific Inc.
    Inventors: Anastasia Khvorova, Angela Reynolds, Devin Leake, William Marshall, Steven Read, Stephen Scaringe