Patents by Inventor Renyuan Bai
Renyuan Bai 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: 20250009688Abstract: Provided herein are methods for increasing the therapeutic efficiency of oncolytic bacterial therapeutics. Bacterial oncolytic therapies, especially the ones targeting tumor hypoxia such as C. novyi-NT, often encounter incomplete tumor clearance in less hypoxic tumoral areas and severe inflammatory reactions. In this study, we explored immune-modulating preconditioning to suppress the host neutrophils and significantly enhanced the antitumor efficacy of C. novyi-NT in animal models, including an orthotopic brain tumor model in rabbits. The optimized preconditioning agent, hydroxyurea, is clinically approved and C. novyi-NT has demonstrated manageable safety and promising antitumor responses in clinical trials. Thus, the proposed preconditioning of neutrophil suppression is readily translatable to patients undergoing C. novyi-NT trials or other oncolytic biologic therapies and could improve outcome.Type: ApplicationFiled: September 20, 2024Publication date: January 9, 2025Inventors: Renyuan Bai, Verena Staedtke
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Patent number: 12109177Abstract: Provided herein are methods for increasing the therapeutic efficiency of oncolytic bacterial therapeutics. Bacterial oncolytic therapies, especially the ones targeting tumor hypoxia such as C. novyi-NT, often encounter incomplete tumor clearance in less hypoxic tumoral areas and severe inflammatory reactions. In this study, we explored immune-modulating preconditioning to suppress the host neutrophils and significantly enhanced the antitumor efficacy of C. novyi-NT in animal models, including an orthotopic brain tumor model in rabbits. The optimized preconditioning agent, hydroxyurea, is clinically approved and C. novyi-NT has demonstrated manageable safety and promising antitumor responses in clinical trials. Thus, the proposed preconditioning of neutrophil suppression is readily translatable to patients undergoing C. novyi-NT trials or other oncolytic biologic therapies and could improve outcome.Type: GrantFiled: December 20, 2022Date of Patent: October 8, 2024Assignee: The Johns Hopkins UniversityInventors: Renyuan Bai, Verena Staedtke
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Publication number: 20240115552Abstract: Mebendazole is an antiparasitic drug with over 40 years of safe use. Recently mebendazole was repurposed for glioblastoma therapy. Three polymorphs of mebendazole exist, but the relative polymorph content for existing drugs varies, and the therapeutic anti-cancer relevance of the different polymorphs was unknown. As an oral drug mebendazole polymorph C is a superior form, and it reaches the brain and brain tumors in effective concentrations. Efficacy is further improved by combining mebendazole with a P-glycoprotein inhibitor. Mebendazole may also be used for therapy of other cancers, as well as a chemo-preventative agent.Type: ApplicationFiled: November 30, 2023Publication date: April 11, 2024Inventors: Gregory Riggins, Renyuan Bai, Verena Staedtke, Avadhut D. Joshi, Tara Williamson
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Patent number: 11850235Abstract: The invention provides methods of delaying or preventing NF1-related malignancies or tumors using mebendazole. The administration of mebendazole results in decreased Ras activation in NF1-related tumor cells. Invention methods include the use of a cyclooxygenase-2 inhibitor such as celecoxib in combination with mebendazole. The methods include methods of treatment and methods of prevention or delaying of neurofibromatosis type 1-related malignancies or tumors.Type: GrantFiled: July 7, 2021Date of Patent: December 26, 2023Assignee: The Johns Hopkins UniversityInventors: Verena Staedtke, Renyuan Bai
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Publication number: 20230310549Abstract: This document relates to methods and materials for preventing cytokine release syndrome (CRS). For example, methods and materials for using one or more catecholamine inhibitors to prevent a mammal from developing CRS are provided.Type: ApplicationFiled: December 9, 2022Publication date: October 5, 2023Inventors: Bert Vogelstein, Kenneth W. Kinzler, Nickolas Papadopoulos, Shibin Zhou, Verena Staedtke, Renyuan Bai, Gregory J. Riggins
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Publication number: 20230201137Abstract: Provided herein are methods for increasing the therapeutic efficiency of oncolytic bacterial therapeutics. Bacterial oncolytic therapies, especially the ones targeting tumor hypoxia such as C. novyi-NT, often encounter incomplete tumor clearance in less hypoxic tumoral areas and severe inflammatory reactions. In this study, we explored immune-modulating preconditioning to suppress the host neutrophils and significantly enhanced the antitumor efficacy of C. novyi-NT in animal models, including an orthotopic brain tumor model in rabbits. The optimized preconditioning agent, hydroxyurea, is clinically approved and C. novyi-NT has demonstrated manageable safety and promising antitumor responses in clinical trials. Thus, the proposed preconditioning of neutrophil suppression is readily translatable to patients undergoing C. novyi-NT trials or other oncolytic biologic therapies and could improve outcome.Type: ApplicationFiled: December 20, 2022Publication date: June 29, 2023Inventors: Renyuan Bai, Verena Staedtke
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Patent number: 11628204Abstract: This document provides methods and materials for preventing cytokine release syndrome (CRS). For example, methods and materials for using one or more catecholamine inhibitors to prevent a mammal from developing CRS are provided.Type: GrantFiled: December 11, 2018Date of Patent: April 18, 2023Assignee: The Johns Hopkins UniversityInventors: Bert Vogelstein, Kenneth W. Kinzler, Nickolas Papadopoulos, Shibin Zhou, Verena Staedtke, Renyuan Bai, Gregory J. Riggins
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Publication number: 20230035885Abstract: The invention provides methods of delaying or preventing NF1-related malignancies or tumors using mebendazole. The administration of mebendazole results in decreased Ras activation in NF1-related tumor cells. Invention methods include the use of a cyclooxygenase-2 inhibitor such as celecoxib in combination with mebendazole. The methods include methods of treatment and methods of prevention or delaying of neurofibromatosis type 1-related malignancies or tumors.Type: ApplicationFiled: July 7, 2021Publication date: February 2, 2023Inventors: Verena Staedtke, Renyuan Bai
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Publication number: 20210395736Abstract: Provided herein is technology relating to treatment of Ras-associated diseases and particularly, but not exclusively, to compositions, methods, systems, and kits for decreasing Ras activity using a neurofibromin 1 GTPase-activating protein-related domain gene therapy construct.Type: ApplicationFiled: October 29, 2019Publication date: December 23, 2021Inventors: Renyuan Bai, Verena Staedtke
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Publication number: 20210369679Abstract: Mebendazole is an antiparasitic drug with over 40 years of safe use. Recently mebendazole was repurposed for glioblastoma therapy. Three polymorphs of mebendazole exist, but the relative polymorph content for existing drugs varies, and the therapeutic anti-cancer relevance of the different polymorphs was unknown. As an oral drug mebendazole polymorph C is a superior form, and it reaches the brain and brain tumors in effective concentrations. Efficacy is further improved by combining mebendazole with a P-glycoprotein inhibitor. Mebendazole may also be used for therapy of other cancers, as well as a chemo-preventative agent.Type: ApplicationFiled: August 13, 2021Publication date: December 2, 2021Applicant: The Johns Hopkins UniversityInventors: Gregory Riggins, Renyuan Bai, Verena Staedtke, Avadhut D. Joshi, Tara Williamson
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Patent number: 11110079Abstract: Mebendazole is an antiparasitic drug with over 40 years of safe use. Recently mebendazole was repurposed for glioblastoma therapy. Three polymorphs of mebendazole exist, but the relative polymorph content for existing drugs varies, and the therapeutic anti-cancer relevance of the different polymorphs was unknown. As an oral drug mebendazole polymorph C is a superior form, and it reaches the brain and brain tumors in effective concentrations. Efficacy is further improved by combining mebendazole with a P-glycoprotein inhibitor. Mebendazole may also be used for therapy of other cancers, as well as a chemo-preventative agent.Type: GrantFiled: February 8, 2016Date of Patent: September 7, 2021Assignee: THE JOHNS HOPKINS UNIVERSITYInventors: Gregory Riggins, Renyuan Bai, Verena Staedtke, Avadhut D. Joshi, Tara Williamson
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Publication number: 20200368324Abstract: This document relates to methods and materials for preventing cytokine release syndrome (CRS). For example, methods and materials for using one or more catecholamine inhibitors to prevent a mammal from developing CRS are provided.Type: ApplicationFiled: December 11, 2018Publication date: November 26, 2020Inventors: Bert Vogelstein, Kenneth W. Kinzler, Nickolas Papadopoulos, Shibin Zhou, Verena Staedtke, Renyuan Bai, Gregory J. Riggins
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Publication number: 20190231802Abstract: A chemotherapeutic-releasing implantable stick is described herein. The chemotherapeutic-releasing implantable stick includes an implantable stick having a length and thickness to fit within a needle track from a needle biopsy, the implantable stick providing a biocompatible and biodegradable substrate for the release of a chemotherapeutic agent when implanted. The chemotherapeutic-releasing implantable stick further includes a chemotherapeutic agent absorbed into the implantable stick.Type: ApplicationFiled: October 18, 2017Publication date: August 1, 2019Applicant: The Johns Hopkins UniversityInventors: Gregory Riggins, Renyuan Bai, Verena Staedtke
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Publication number: 20180021310Abstract: Mebendazole is an antiparasitic drug with over 40 years of safe use. Recently mebendazole was repurposed for glioblastoma therapy. Three polymorphs of mebendazole exist, but the relative polymorph content for existing drugs varies, and the therapeutic anti-cancer relevance of the different polymorphs was unknown. As an oral drug mebendazole polymorph C is a superior form, and it reaches the brain and brain tumors in effective concentrations. Efficacy is further improved by combining mebendazole with a P-glycoprotein inhibitor. Mebendazole may also be used for therapy of other cancers, as well as a chemo-preventative agent.Type: ApplicationFiled: February 8, 2016Publication date: January 25, 2018Inventors: Gregory Riggins, Renyuan Bai, Verena Staedtke, Avadhut D. Joshi, Tara Williamson
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Patent number: 8338155Abstract: The present invention relates to modified mevalonate kinases that are less sensitive to feedback inhibition, and to polynucleotides encoding them. The invention further pertains to vectors comprising these polynucleotides and host cells containing such vectors. The invention provides a process for producing the modified enzyme and for producing isoprenoid compounds using the modified enzymes.Type: GrantFiled: December 12, 2005Date of Patent: December 25, 2012Assignee: DSM IP Assets B.V.Inventors: Renyuan Bai, Markus Wyss
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Patent number: 7422884Abstract: The present invention relates to modified mevalonate kinases that are less sensitive to feedback inhibition, and to polynucleotides encoding them. The invention further pertains to vectors comprising these polynucleotides and host cells containing such vectors. The invention provides a method for producing the modified enzyme and a method for producing isoprenoid compounds.Type: GrantFiled: June 10, 2004Date of Patent: September 9, 2008Assignee: DSM IP Assetts B.V.Inventors: Renyuan Bai, Markus Huembelin, Martin Lehmann, Rual Lopez-Ulibarri, Markus Wyss
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Publication number: 20070286850Abstract: The present invention relates to modified mevalonate kinases that are less sensitive to feedback inhibition, and to polynucleotides encoding them. The invention further pertains to vectors comprising these polynucleotides and host cells containing such vectors. The invention provides a process for producing the modified enzyme and for producing isoprenoid compounds using the modified enzymes.Type: ApplicationFiled: December 12, 2005Publication date: December 13, 2007Inventors: Renyuan Bai, Markus Wyss
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Publication number: 20070141685Abstract: The present invention relates to modified mevalonate kinases that are less sensitive to feedback inhibition, and to polynucleotides encoding them. The invention further pertains to vectors comprising these polynucleotides and host cells containing such vectors. The invention provides a method for producing the modified enzyme and a method for producing isoprenoid compounds.Type: ApplicationFiled: June 10, 2004Publication date: June 21, 2007Inventors: Renyuan Bai, Markus Huembelin, Martin Lehmann, Rual Lopez-Ulibarri, Markus Wyss