Inmunoterapia "STAb" para el tratamiento de neoplasias hematológicas
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2023
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06/06/2022
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Universidad Complutense de Madrid
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Abstract
La inmunoterapia del cáncer ha progresado considerablemente gracias al desarrollo de tratamientos potencialmente curativos para la leucemia linfoblástica aguda de células B (LLA-B). Las estrategias más efectivas se basan en el uso de anticuerpos biespecíficos (AcBis) anti-CD19 x anti-CD3 y terapias celulares adoptivas con linfocitos T modificados que expresan en su membrana un receptor de antígeno quimérico (CAR, del inglés, Chimeric Antigen Receptor) capaz de reconocer la moléculaCD19 (CAR-T19). La administración de células CAR-T19 y la infusión sistémica de AcBisanti-CD19 x anti-CD3 en formato BiTE (del inglés, Bispecific T cell Engager), han demostrado una tasa de respuesta considerable en pacientes con LLA-B refractaria o en recaída (LLA-B R/R). Sin embargo, a pesar de los resultados obtenidos, un 30-60% de los pacientes recaen o progresan al año del tratamiento. En nuestro laboratorio se ha desarrollado la inmunoterapia STAb (del inglés, Secretion of T cell redirecting Antibodies)-T que consiste en la modificación de células T para que secreten AcBis activadores (TCEs, del inglés: T Cell Engagers)...
Cancer immunotherapy has progressed significantly with the emergence of potentially curative strategies for B-cell acute lymphoblastic leukemia (B-ALL). The most effective approaches are based on the use of anti-CD19 x anti-CD3 bispecific antibodies,and adoptive cell therapies with engineered T lymphocytes expressing a chimeric antigen receptor (CAR) that recognizes the CD19 molecule (CAR-T19). The administration of CAR-T19 cells and the systemic infusion of anti-CD19 x anti-CD3 bispecific T cell engagers (BiTEs) have demonstrated a remarkable response rate in patients with refractory or relapsed B-ALL (R/R B-ALL). However, despite the excellent results reported, 30-60% of treated patients relapse or progress within one year of treatment. In our laboratory, we have developed the immunotherapy STAb (Secretion of T cell redirecting bispecific Antibodies)-T, which consists of the modification of T cells to secrete T cell engagers (TCEs)...
Cancer immunotherapy has progressed significantly with the emergence of potentially curative strategies for B-cell acute lymphoblastic leukemia (B-ALL). The most effective approaches are based on the use of anti-CD19 x anti-CD3 bispecific antibodies,and adoptive cell therapies with engineered T lymphocytes expressing a chimeric antigen receptor (CAR) that recognizes the CD19 molecule (CAR-T19). The administration of CAR-T19 cells and the systemic infusion of anti-CD19 x anti-CD3 bispecific T cell engagers (BiTEs) have demonstrated a remarkable response rate in patients with refractory or relapsed B-ALL (R/R B-ALL). However, despite the excellent results reported, 30-60% of treated patients relapse or progress within one year of treatment. In our laboratory, we have developed the immunotherapy STAb (Secretion of T cell redirecting bispecific Antibodies)-T, which consists of the modification of T cells to secrete T cell engagers (TCEs)...
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Tesis inédita de la Universidad Complutense de Madrid, Facultad de Medicina, leída el 06-06-2022