Patents by Inventor Irina Lebedeva
Irina Lebedeva 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).
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Publication number: 20230175036Abstract: Provided is a compound comprising the structure: (SIG)-(SI-MOD)m. In this compound, SIG is a signaling molecule, SI is a self-immolative structure bound to SIG such that SIG has a reduced signal relative to the signal of SIG without SI, MOD is a moiety bound to SI that is subject to modification by an activator, and m is an integer from 1 to about 10. With this compound, when MOD is modified by an activator, SI is destabilized and self-cleaved from SIG such that SIG generates an increased signal. Also provided is a method of determining whether a sample comprises an activator, using the above-described compound. Additionally provided is a method of determining whether a cell comprises a nitroreductase using the above-described compound where nitroreductase is the activator. Further provided is a method of determining whether a mammalian cell is hypoxic using the above-described compound where nitroreductase is the activator.Type: ApplicationFiled: January 30, 2023Publication date: June 8, 2023Applicant: Enzo Life Sciences, Inc.Inventors: Irina LEBEDEVA, Wayne Forrest PATTON, Maciej SZCZEPANIK, Yuejun XIANG, Praveen PANDE
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Patent number: 11661621Abstract: Provided is a compound having the structure: (SIG)-(SI-MOD)m where SIG is a signaling molecule, SI is a self-immolative structure bound to SIG such that SIG has a reduced signal relative to the signal of SIG without SI, MOD is a moiety bound to SI that is subject to modification by an activator, and m is an integer from 1 to about 10. When MOD is modified by an activator, SI is destabilized and self-cleaved from SIG such that SIG generates an increased signal. Also provided are methods of determining whether a sample, such as a cell, comprises an activator, such as a nitroreducase, using the compound. Further provided are methods of determining whether a mammalian cell is hypoxic using the compound where nitroreductase is the activator. A method of detecting a microorganism that comprises a nitroreductase using the compound where nitroreductase is the activator is also provided.Type: GrantFiled: May 28, 2020Date of Patent: May 30, 2023Assignee: ENZO LIFE SCIENCES, INC.Inventors: Irina Lebedeva, Wayne Forrest Patton, Maciej Szczepanik, Yuejun Xiang, Praveen Pande
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Publication number: 20200291448Abstract: Provided is a compound having the structure: (SIG)-(SI-MOD)m where SIG is a signaling molecule, SI is a self-immolative structure bound to SIG such that SIG has a reduced signal relative to the signal of SIG without SI, MOD is a moiety bound to SI that is subject to modification by an activator, and m is an integer from 1 to about 10. When MOD is modified by an activator, SI is destabilized and self-cleaved from SIG such that SIG generates an increased signal. Also provided are methods of determining whether a sample, such as a cell, comprises an activator, such as a nitroreducase, using the compound. Further provided are methods of determining whether a mammalian cell is hypoxic using the compound where nitroreductase is the activator. A method of detecting a microorganism that comprises a nitroreductase using the compound where nitroreductase is the activator is also provided.Type: ApplicationFiled: May 28, 2020Publication date: September 17, 2020Applicant: ENZO LIFE SCIENCES, INC.Inventors: Irina LEBEDEVA, Wayne Forest PATTON, Maciej SZCZEPANIK, Yuejun XIANG, Praveen PANDE
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Patent number: 10718005Abstract: Provided is a compound having the structure: (SIG)-(SI-MOD)m where SIG is a signaling molecule, SI is a self-immolative structure bound to SIG such that SIG has a reduced signal relative to the signal of SIG without SI, MOD is a moiety bound to SI that is subject to modification by an activator, and m is an integer from 1 to about 10. When MOD is modified by an activator, SI is destabilized and self-cleaved from SIG such that SIG generates an increased signal. Also provided are methods of determining whether a sample, such as a cell, comprises an activator, such as a nitroreducase, using the compound. Further provided are methods of determining whether a mammalian cell is hypoxic using the compound where nitroreductase is the activator. A method of detecting a microorganism that comprises a nitroreductase using the compound where nitroreductase is the activator is also provided.Type: GrantFiled: November 1, 2018Date of Patent: July 21, 2020Assignee: Enzo Life Sciences, IncInventors: Irina Lebedeva, Wayne Forrest Patton, Maciej Szczepanik, Yuejun Xiang, Praveen Pande
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Publication number: 20190119719Abstract: Provided is a compound having the structure: (SIG)-(SI-MOD)m where SIG is a signaling molecule, SI is a self-immolative structure bound to SIG such that SIG has a reduced signal relative to the signal of SIG without SI, MOD is a moiety bound to SI that is subject to modification by an activator, and m is an integer from 1 to about 10. When MOD is modified by an activator, SI is destabilized and self-cleaved from SIG such that SIG generates an increased signal. Also provided are methods of determining whether a sample, such as a cell, comprises an activator, such as a nitroreducase, using the compound. Further provided are methods of determining whether a mammalian cell is hypoxic using the compound where nitroreductase is the activator. A method of detecting a microorganism that comprises a nitroreductase using the compound where nitroreductase is the activator is also provided.Type: ApplicationFiled: November 1, 2018Publication date: April 25, 2019Applicant: ENZO LIFE SCIENCES, INC.Inventors: Irina Lebedeva, Wayne Forrest Patton, Maciej Szczepanik, Yuejun Xiang, Praveen Pande
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Publication number: 20170137863Abstract: Provided is a compound having the structure: (SIG)-(SI-MOD)m where SIG is a signaling molecule, SI is a self-immolative structure bound to SIG such that SIG has a reduced signal relative to the signal of SIG without SI, MOD is a moiety bound to SI that is subject to modification by an activator, and m is an integer from 1 to about 10. When MOD is modified by an activator, SI is destabilized and self-cleaved from SIG such that SIG generates an increased signal. Also provided are methods of determining whether a sample, such as a cell, comprises an activator, such as a nitroreducase, using the compound. Further provided are methods of determining whether a mammalian cell is hypoxic using the compound where nitroreductase is the activator. A method of detecting a microorganism that comprises a nitroreductase using the compound where nitroreductase is the activator is also provided.Type: ApplicationFiled: January 26, 2017Publication date: May 18, 2017Applicant: ENZO LIFE SCIENCES, INC., C/O ENZO BIOCHEM, INC.Inventors: IRINA LEBEDEVA, WAYNE FORREST PATTON, MACIEJ SZCZEPANIK, YUEJUN XIANG, PRAVEEN PANDE
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Publication number: 20170122954Abstract: Provided are methods, kits and systems for simultaneously profiling of global reactive species and selected reactive species, such as global and specific reactive oxygen species (ROS), reactive nitrogen species (RNS), reactive halogen species (RHS) or combinations thereof through multiplexed fluorescence detection of three or more compatible indicator probes in live cells or subcellular organelles.Type: ApplicationFiled: January 10, 2017Publication date: May 4, 2017Applicant: ENZO LIFE SCIENCES, INC., C/O ENZO BIOCHEM, INC.Inventors: IRINA LEBEDEVA, WAYNE FORREST PATTON
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Patent number: 9097673Abstract: This invention relates to multi-drug resistance (MDR) in cells, and the use of certain xanthene compounds for determining drug resistance in cells and the effect of test compounds on cell membrane transport by the membrane transporters MDR1, MRP and BCRP. Processes and kits for making these determinations and measuring these effects are described and provided.Type: GrantFiled: April 17, 2013Date of Patent: August 4, 2015Assignee: Enzo Life Sciences, Inc.Inventors: Irina Lebedeva, Praveen Pande, Wayne Forrest Patton
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Publication number: 20150192564Abstract: This invention provides methods, kits and systems which permit simultaneous profiling of multiple reactive oxygen species (ROS), reactive nitrogen species (RNS) and/or reactive halogen species (RHS) including reactive chlorine species (RCS) and/or reactive bromine species (RBS) through multiplexed fluorescence detection of three or more indicator probes in live cells or subcellular organelles.Type: ApplicationFiled: February 24, 2015Publication date: July 9, 2015Applicant: ENZO LIFE SCIENCES, INC., C/O ENZO BIOCHEM, INC.Inventors: IRINA LEBEDEVA, WAYNE FORREST PATTON
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Patent number: 8445271Abstract: This invention relates to multi-drug resistance (MDR) in cells, and the use of certain xanthene compounds for determining drug resistance in cells and the effect of test compounds on cell membrane transport by the membrane transporters MDR1, MRP and BCRP. Processes and kits for making these determinations and measuring these effects are described and provided.Type: GrantFiled: May 3, 2010Date of Patent: May 21, 2013Assignee: Enzo Life Sciences, Inc.Inventors: Irina Lebedeva, Praveen Pande, Wayne Forrest Patton
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Publication number: 20110269168Abstract: This invention relates to multi-drug resistance (MDR) in cells, and the use of certain xanthene compounds for determining drug resistance in cells and the effect of test compounds on cell membrane transport by the membrane transporters MDR1, MRP and BCRP. Processes and kits for making these determinations and measuring these effects are described and provided.Type: ApplicationFiled: May 3, 2010Publication date: November 3, 2011Inventors: Irina Lebedeva, Praveen Pande, Wayne Forrest Patton
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Publication number: 20060110376Abstract: The present invention relates to methods of treating a cancer in a subject comprising generating within one or more cancer cells of a subject an effective amount of MDA-7 and an effective amount of one or more free radicals. The present invention further relates to methods of inhibiting proliferation or promoting death in a cancer cell of a subject comprising generating within one or more cancer cells of a subject an effective amount of MDA-7 and an effective amount of one or more free radicals. Generation of an effective amount of MDA-7 can occur by administering to the cancer cell an effective amount of an mda-7 nucleic acid, MDA-7 protein, functional equivalents of either of these molecules, by upregulation of the endogenous mda-7 gene, or by stabilization of the mda-7 mRNA.Type: ApplicationFiled: June 22, 2005Publication date: May 25, 2006Inventors: Paul Fisher, Rahul Gopalkrishnan, Irina Lebedeva, Steven Grant, Adly Yacoub, Paul Dent