Abstract: The invention features a hydrogel complex that can bind to and modulate a desired immune cell, e.g., T cell, population. In certain embodiments, the complex can be dissolved, and thus dissociated from its targeted cell, representing a safe and efficient approach for processing immune cells, e.g., T cells for clinical use. The invention also provides methods and apparatus for synthesizing hydrogel complexes, as well as methods of using the complexes to generate expanded immune cell, e.g., T cell, populations as part of adoptive immune cell, e.g., T cell, therapy systems.

Abstract: The invention features a complex that binds to, stimulates, and expands a desired T cell population and facilitates separation of the target population from a sample. The complex can be gently dissociated from the binding unit after separating the desired T cell population, representing a safe and efficient approach for processing T cells for clinical use. Invention also provides methods of using such complexes as part of adoptive T cell therapy systems.

Abstract: The invention features a complex that binds to, stimulates, and expands a desired T cell population and facilitates separation of the target population from a sample. The complex can be gently dissociated from the binding unit after separating the desired T cell population, representing a safe and efficient approach for processing T cells for clinical use. Invention also provides methods of using such complexes as part of adoptive T cell therapy systems.