Patents by Inventor David Sourdive
David Sourdive 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: 20260209675Abstract: A device is provided for filling and emptying of an electroporation chamber. In particular, the device comprises a tubing set (10) having a main tube (11) with a first end (12) for connection to a cell suspension input bag (1) and a second end for connection to an electroporation chamber (3). A first branch tube from a first junction (16) with the main tube has at its other end a connection for an exogenous material input bag (2). A second junction between the first junction (16) and the connection to the electroporation chamber leads to a second branch tube (20) for connection to an output container (4). Further, one or more pumps are arranged to act upon the main tube, the first branch tube and the second branch tube respectively so as to displace fluid therein.Type: ApplicationFiled: January 31, 2024Publication date: July 23, 2026Inventors: Damien DERLIQUE, David SOURDIVE
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Publication number: 20250277231Abstract: The present invention pertains to engineered T-cells, method for their preparation and their use as medicament, particularly for immunotherapy. The engineered T-cells of the invention are characterized in that the expression of beta 2-microglobulin (B2M) and/or class II major histocompatibility complex transactivator (CIITA) is inhibited, e.g., by using rare-cutting endonucleases able to selectively inactivating by DNA cleavage the gene encoding B2M and/or CIITA, or by using nucleic acid molecules which inhibit the expression of B2M and/or CIITA. In order to further render the T-cell non-alloreactive, at least one gene encoding a component of the T-cell receptor is inactivated, e.g., by using a rare-cutting endonucleases able to selectively inactivating by DNA cleavage the gene encoding said TCR component. In addition, expression of immunosuppressive polypeptide can be performed on those modified T-cells in order to prolong the survival of these modified T cells in host organism.Type: ApplicationFiled: February 28, 2025Publication date: September 4, 2025Applicant: CELLECTISInventors: Laurent POIROT, David SOURDIVE, Philippe DUCHATEAU, Jean-Pierre CABANIOLS
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Patent number: 12252699Abstract: The present invention pertains to engineered T-cells, method for their preparation and their use as medicament, particularly for immunotherapy. The engineered T-cells of the invention are characterized in that the expression of beta 2-microglobulin (B2M) and/or class II major histocompatibility complex transactivator (CIITA) is inhibited, e.g., by using rare-cutting endonucleases able to selectively inactivating by DNA cleavage the gene encoding B2M and/or CIITA, or by using nucleic acid molecules which inhibit the expression of B2M and/or CIITA. In order to further render the T-cell non-alloreactive, at least one gene encoding a component of the T-cell receptor is inactivated, e.g., by using a rare-cutting endonucleases able to selectively inactivating by DNA cleavage the gene encoding said TCR component.Type: GrantFiled: October 4, 2023Date of Patent: March 18, 2025Assignee: CELLECTISInventors: Laurent Poirot, David Sourdive, Philippe Duchateau, Jean-Pierre Cabaniols
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Publication number: 20250034641Abstract: The present invention provides composition kits and methods for treating cancer in a human by immunotherapy using successive doses of CAR-T cells with no or reduced anamnestic immune reaction in one individual (P).Type: ApplicationFiled: October 14, 2024Publication date: January 30, 2025Applicant: CELLECTISInventors: David SOURDIVE, Aymeric DUCLERT, Mathieu SIMON, Philippe DUCHATEAU, Alan Marc WILLIAMS, Laurent POIROT
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Patent number: 12144825Abstract: The present invention provides composition kits and methods for treating cancer in a human by immunotherapy using successive doses of CAR-T cells with no or reduced anamnestic immune reaction in one individual (P).Type: GrantFiled: July 2, 2018Date of Patent: November 19, 2024Assignee: CELLECTISInventors: David Sourdive, Aymeric Duclert, Mathieu Simon, Philippe Duchateau, Alan Marc Williams, Laurent Poirot
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Publication number: 20240026376Abstract: The present invention pertains to engineered T-cells, method for their preparation and their use as medicament, particularly for immunotherapy. The engineered T-cells of the invention are characterized in that the expression of beta 2-microglobulin (B2M) and/or class II major histocompatibility complex transactivator (CIITA) is inhibited, e.g., by using rare-cutting endonucleases able to selectively inactivating by DNA cleavage the gene encoding B2M and/or CIITA, or by using nucleic acid molecules which inhibit the expression of B2M and/or CIITA. In order to further render the T-cell non-alloreactive, at least one gene encoding a component of the T-cell receptor is inactivated, e.g., by using a rare-cutting endonucleases able to selectively inactivating by DNA cleavage the gene encoding said TCR component. In addition, expression of immunosuppressive polypeptide can be performed on those modified T-cells in order to prolong the survival of these modified T cells in host organism.Type: ApplicationFiled: October 4, 2023Publication date: January 25, 2024Applicant: CELLECTISInventors: Laurent POIROT, David SOURDIVE, Philippe DUCHATEAU, Jean-Pierre CABANIOLS
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Patent number: 11820996Abstract: The present invention pertains to engineered T-cells, method for their preparation and their use as medicament, particularly for immunotherapy. The engineered T-cells of the invention are characterized in that the expression of beta 2-microglobulin (B2M) and/or class II major histocompatibility complex transactivator (CIITA) is inhibited, e.g., by using rare-cutting endonucleases able to selectively inactivating by DNA cleavage the gene encoding B2M and/or CIITA or by using nucleic acid molecules which inhibit the expression of B2M and/or CIITA. In order to further render the T-cell non-alloreactive, at least one gene encoding a component of the T-cell receptor is inactivated, e.g., by using a rare-cutting endonucleases able to selectively inactivating by DNA cleavage the gene encoding said TCR component. In addition, expression of immunosuppressive polypeptide can be performed on those modified T-cells in order to prolong the survival of these modified T cells in host organism.Type: GrantFiled: September 21, 2018Date of Patent: November 21, 2023Assignee: CELLECTISInventors: Laurent Poirot, David Sourdive, Philippe Duchateau, Jean-Pierre Cabaniols
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Publication number: 20220233588Abstract: The present invention provides composition kits and methods for treating cancer in a human by immunotherapy using successive doses of CAR-T cells with no or reduced anamnestic immune reaction in one individual (P).Type: ApplicationFiled: July 2, 2018Publication date: July 28, 2022Inventors: David SOURDIVE, Aymeric DUCLERT, Mathieu SIMON, Philippe DUCHATEAU, Alan Marc WILLIAMS, Laurent POIROT
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Publication number: 20210268028Abstract: The present invention relates to compositions comprising engineered allogenic immune cells endowed with Chimeric Antigen Receptors (CAR), in particular a CAR specific for CD123 and CLL1 for treating AML patients with adverse genetic risk.Type: ApplicationFiled: June 14, 2019Publication date: September 2, 2021Inventors: Stéphane André DEPIL, Ghulam MUFTI, David SOURDIVE
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Patent number: 10813951Abstract: The present invention relates to the use of “off-the-shelf” allogeneic therapeutic cells for immunotherapy in conjunction with chemotherapy to treat patients with cancer. In particular, the inventors develop a method of engineering allogeneic T-cell resistant to chemotherapeutic agents. The therapeutic benefits afforded by this strategy should be enhanced by the synergistic effects between chemotherapy and immunotherapy. In particular, the present invention relates to a method for modifying T-cells by inactivating at least one gene encoding T-cell receptor component and by modifying said T-cells to confer drug resistance. The invention opens the way to standard and affordable adoptive immunotherapy strategies for treating cancer.Type: GrantFiled: November 21, 2014Date of Patent: October 27, 2020Assignee: CELLECTISInventors: Julien Valton, Philippe Duchateau, David Sourdive
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Patent number: 10357515Abstract: The present invention relates to a method for generating batches of lymphocytes with averaged potency. In particular, the present invention relates to a method of pooling lymphocytes from different donors to avoid NK alloreactivity and anti-HLA immune response. Lymphocytes from each donor are inactivated for at least a gene encoding a TCR component, and are pooled together before be administrated to a subject in need thereof. Thus, this method allows generating batches of lymphocytes with averaged potency, particularly to treat cancer, viral infection or auto-immune disease. The present invention also relates to a batch of lymphocytes obtainable by this method. The batch of lymphocytes can be used to be administrated to one or several patients, being made available as an “off the shelf” therapeutic product, in particular to treat cancer, auto-immune disease or viral infection.Type: GrantFiled: November 21, 2014Date of Patent: July 23, 2019Assignee: CELLECTISInventors: David Sourdive, Carole Desseaux, Andrew Scharenberg
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Publication number: 20190010514Abstract: The present invention pertains to engineered T-cells, method for their preparation and their use as medicament, particularly for immunotherapy. The engineered T-cells of the invention are characterized in that the expression of beta 2-microglobulin (B2M) and/or class II major histocompatibility complex transactivator (CIITA) is inhibited, e.g., by using rare-cutting endonucleases able to selectively inactivating by DNA cleavage the gene encoding H2M and/or CIITA or by using nucleic acid molecules which inhibit the expression of B2M and/or CIITA. In order to further render the T-cell non-alloreactive, at least one gene encoding a component of the T-cell receptor is inactivated, e.g., by using a rare-cutting endonucleases able to selectively inactivating by DNA cleavage the gene encoding said TCR component. In addition, expression of immunosuppressive polypeptide can be performed on those modified T-cells in order to prolong the survival of these modified T cells in host organism.Type: ApplicationFiled: September 21, 2018Publication date: January 10, 2019Applicant: CELLECTISInventors: Laurent POIROT, David SOURDIVE, Philippe DUCHATEAU, Jean-Pierre CABANIOLS
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Patent number: 10087453Abstract: The invention provides engineered diatoms and methods of producing oil using diatoms. The invention also provides methods of modifying the lipids quantity and/or quality produced by diatom organisms through genome engineering. Also provided are oils, fuels, oleochemicals, chemical precursors, and other compounds manufactured from such modified diatoms.Type: GrantFiled: June 25, 2014Date of Patent: October 2, 2018Assignee: CELLECTISInventors: Philippe Duchateau, Fayza Daboussi, David Sourdive, Jean-Charles Epinat
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Publication number: 20170016025Abstract: The present invention pertains to engineered T-cells, method for their preparation and their use as medicament, particularly for immunotherapy. The engineered T-cells of the invention are characterized in that the expression of beta 2-microglobulin (B2M) and/or class II major histocompatibility complex transactivator (CIITA) is inhibited, e.g., by using rare-cutting endonucleases able to selectively inactivating by DNA cleavage the gene encoding B2M and/or CIITA, or by using nucleic acid molecules which inhibit the expression of B2M and/or CIITA. In order to further render the T-cell non-alloreactive, at least one gene encoding a component of the T-cell receptor is inactivated, e.g., by using a rare-cutting endonucleases able to selectively inactivating by DNA cleavage the gene encoding said TCR component. In addition, expression of immunosuppressive polypeptide can be performed on those modified T-cells in order to prolong the survival of these modified T cells in host organism.Type: ApplicationFiled: March 11, 2015Publication date: January 19, 2017Inventors: Laurent POIROT, David SOURDIVE, Philippe DUCHATEAU, Jean-Pierre CABANIOLS
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Publication number: 20160361359Abstract: The present invention relates to the use of “off-the-shelf” allogeneic therapeutic cells for immunotherapy in conjunction with chemotherapy to treat patients with cancer. In particular, the inventors develop a method of engineering allogeneic T-cell resistant to chemotherapeutic agents. The therapeutic benefits afforded by this strategy should be enhanced by the synergistic effects between chemotherapy and immunotherapy. In particular, the present invention relates to a method for modifying T-cells by inactivating at least one gene encoding T-cell receptor component and by modifying said T-cells to confer drug resistance. The invention opens the way to standard and affordable adoptive immunotherapy strategies for treating cancer.Type: ApplicationFiled: November 21, 2014Publication date: December 15, 2016Inventors: Julien VALTON, Philippe DUCHATEAU, David SOURDIVE
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Publication number: 20160296563Abstract: The present invention relates to a method for generating batches of lymphocytes with averaged potency. In particular, the present invention relates to a method of pooling lymphocytes from different donors to avoid NK alloreactivity and anti-HLA immune response. Lymphocytes from each donor are inactivated for at least a gene encoding a TCR component, and are pooled together before be administrated to a subject in need thereof. Thus, this method allows generating batches of lymphocytes with averaged potency, particularly to treat cancer, viral infection or auto-immune disease. The present invention also relates to a batch of lymphocytes obtainable by this method. The batch of lymphocytes can be used to be administrated to one or several patients, being made available as an “off the shelf” therapeutic product, in particular to treat cancer, auto-immune disease or viral infection.Type: ApplicationFiled: November 21, 2014Publication date: October 13, 2016Inventors: David SOURDIVE, Carole DESSEAUX, Andrew SCHARENBERG
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Publication number: 20160130599Abstract: The invention provides engineered diatoms and methods of producing oil using diatoms. The invention also provides methods of modifying the lipids quantity and/or quality produced by diatom organisms through genome engineering. Also provided are oils, fuels, oleochemicals, chemical precursors, and other compounds manufactured from such modified diatoms.Type: ApplicationFiled: June 25, 2014Publication date: May 12, 2016Inventors: Philippe DUCHATEAU, Fayza DABOUSSI, David SOURDIVE, Jean-Charles EPINAT
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Publication number: 20150353885Abstract: The present invention relates to the field of genetic selection, where particular genetic traits or loci combinations are sought in a progeny resulting from genetic breeding. The invention provides genetic engineering solutions to select or counter-select the occurrence of genetic events.Type: ApplicationFiled: February 21, 2014Publication date: December 10, 2015Inventor: David Sourdive
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Publication number: 20130189759Abstract: Meganuclease variants cleaving DNA target sequences of the NANOG gene, vectors encoding such variants, and cells expressing them. Methods of using meganuclease variants recognizing NANOG gene sequences for modifying the NANOG gene sequence or for incorporating a gene of interest or therapeutic gene using the NANOG gene as a landing pad and a safe harbor locus.Type: ApplicationFiled: July 7, 2011Publication date: July 25, 2013Applicant: CellectisInventor: David Sourdive
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Publication number: 20130164850Abstract: The invention relates to endonucleases cleaving DNA target sequences from algae genomes, to appropriate vectors encoding such endonucleases, to cells or to algae modified by such vectors and to the use of these endonucleases and products derived therefrom for targeted genomic engineering in algae.Type: ApplicationFiled: August 1, 2011Publication date: June 27, 2013Inventor: David Sourdive