Flow cytometry detection and quantification of CAR T cells into solid tumors

Tokarew, Nicholas J.A.; Gosálvez, Javier Suárez; Nottebrock, Alessia; Briukhovestka, Daria; Endres, Stefan ; Cadilha, Bruno L. und Kobold, Sebastian (2022): Flow cytometry detection and quantification of CAR T cells into solid tumors. In: Methods in Cell Biology, Vol. 167: pp. 99-122

Abstract

Adoptive T cell therapy (ACT) is a therapeutic approach which employs genetically manipulated autologous T cells to target and eliminate a patient's malignancy. This novel therapeutic approach, when employing a chimeric antigen receptor (CAR) targeting CD19-expressing B cells, has shown remarkable success in treating acute B-cell lymphocytic leukemia. However, blood born malignancies represent only a fraction of cancers which affect patients. Unfortunately, the utilization of ACT to target solid malignancies has only shown marginal success rates. There are many known obstacles which hinder CAR T cell therapy in patients suffering from solid cancer, one notable obstacle is the effective trafficking of CAR T cells to the tumor site. With the rapid advancement of novel approaches and targets which may enhance CAR T cell infiltration into solid tumors, a standardized approach to assess and measure CAR T cell infiltration becomes imperative in order to compare these different approaches across platforms. Here we describe a flow cytometry method which enables the rapid detection and quantification of CAR T cells which have reached and entered the tumor mass following intravenous injection. Competence with single cell preparation and flow cytometry is required for optimal results.

• Item Type: Journal article
• Faculties: Medicine > Medical Center of the University of Munich > Medical Clinic and Outpatient Clinic IV (Endocrinology, nephrology, other sections)
• Subjects: 600 Technology > 610 Medicine and health
• ISSN: 0091-679X
• Language: English