Human T Cell Receptors for Treating Cancer
T cell receptors (TCRs) are proteins that recognize antigens in the context of infected or transformed cells and activate T cells to mediate an immune response and destroy abnormal cells. TCRs consist of two domains, one variable domain that recognizes the antigen and one constant region that helps the TCR anchor to the membrane and transmit recognition signals by interacting with other proteins. When a TCR is stimulated by an antigen, such as a tumor antigen, some signaling pathways activated in the cell lead to the production of cytokines, which mediate the immune response.
There are ten (10) known members of the synovial sarcoma breakpoint X (SSX) protein family designated SSX-1 through SSX-10. The T cell receptors (TCRs) developed by these NCI scientists have specificity for SSX-2 and deliver a robust immune response when they encounter SSX-2 expressing cells. However, these TCRs also recognize five (5) other SSX family members, including SSX-3, SSX-4, SSX-5, SSX-9, and/or SSX-10, and deliver a productive, intermediate immune response in the context of target cells expressing these antigens. This versatile antigen coverage could allow these SSX-specific TCRs to be utilized in the treatment of multiple types of cancer in a wide array of cancer patients. Infusing cancer patients with SSX-2 specific T cells via adoptive immunotherapy could prove to be a powerful approach for selectively attacking tumors without generating toxicity against noncancerous cells.
Competitive Advantages:
- Selective toxicity for tumor cells
- Ability to recognize multiple SSX antigens
- Versatile antigen recognition
Commercial Applications:
- Immunotherapeutics to treat and/or prevent the recurrence of a variety of human cancers;
- A research tool to investigate signaling pathways in SSX-2 expressing cancer cells;
- An in vitro diagnostic tool to screen for cells expressing an SSX antigen from a recognized member of the SSX protein family.
Related Inventions
- E-105-2012
- E-236-2010
Patents
- US
Provisional (PRV) 61/384,931
Filed on 2010-09-21
Status: Abandoned - Patent Cooperation Treaty
(PCT) PCT/US11/51537
Filed on 2011-09-14
Status: Expired - Australia
National Stage 2011305817
Filed on 2011-09-14
Status: Issued - Canada
National Stage 2811788
Filed on 2016-09-09
Status: Issued - European Patent
National Stage 11763819.7
Filed on 2011-09-14
Status: Issued - China
National Stage 201180045492.0
Filed on 2011-09-14
Status: Issued - Japan
National Stage 2013-529285
Filed on 2013-03-19
Status: Issued - Israel
National Stage 225063
Filed on 2013-03-05
Status: Issued - US Patent 9,345,748
Filed on 2013-06-07
Status: Issued - US Patent 10,143,724
Filed on 2016-04-19
Status: Issued - Japan
Divisional (DIV) 2017-082965
Filed on 2017-04-19
Status: Abandoned - Israel
Divisional (DIV) 254469
Filed on 2017-09-13
Status: Issued - US Patent 10,864,252
Filed on 2018-10-29
Status: Issued - European Patent
Divisional (DIV) 19166061.2
Filed on 2019-03-29
Status: Issued - Austria
European patent (EP) 11763819.7
Filed on 2011-09-14
Status: Issued - Belgium
European patent (EP) 11763819.7
Filed on 2011-09-14
Status: Issued - Switzerland
European patent (EP) 11763819.7
Filed on 2011-09-14
Status: Issued - Germany
European patent (EP) 11763819.7
Filed on 2011-09-14
Status: Issued - Spain
European patent (EP) 11763819.7
Filed on 2011-09-14
Status: Issued - France
European patent (EP) 11763819.7
Filed on 2011-09-14
Status: Issued - United Kingdom
European patent (EP) 11763819.7
Filed on 2011-09-14
Status: Issued - Ireland
European patent (EP) 11763819.7
Filed on 2011-09-14
Status: Issued - Italy
European patent (EP) 11763819.7
Filed on 2011-09-14
Status: Issued - The Netherlands
European patent (EP) 11763819.7
Filed on 2011-09-14
Status: Issued - Portugal
European patent (EP) 11763819.7
Filed on 2011-09-14
Status: Issued - Israel
Divisional (DIV) 271021
Filed on 2019-11-28
Status: Issued - Austria
European patent (EP) 19166061.2
Filed on 2019-03-29
Status: Issued - Belgium
European patent (EP) 19166061.2
Filed on 2019-03-29
Status: Issued - Switzerland
European patent (EP) 19166061.2
Filed on 2019-03-29
Status: Issued - Germany
European patent (EP) 19166061.2
Filed on 2019-03-29
Status: Issued - Spain
European patent (EP) 19166061.2
Filed on 2019-03-29
Status: Issued - France
European patent (EP) 19166061.2
Filed on 2019-03-29
Status: Issued - United Kingdom
European patent (EP) 19166061.2
Filed on 2019-03-29
Status: Issued - Ireland
European patent (EP) 19166061.2
Filed on 2019-03-29
Status: Issued - Italy
European patent (EP) 19166061.2
Filed on 2019-03-29
Status: Issued - The Netherlands
European patent (EP) 19166061.2
Filed on 2019-03-29
Status: Issued - Portugal
European patent (EP) 19166061.2
Filed on 2019-03-29
Status: Issued
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