Technical Articles

Obtaining large numbers of highly active human peripheral blood-derived T cells is a critically important technical step in immunotherapy development, oncology research, and the exploration of immune response mechanisms. Traditional T cell expansion requires researchers to independently optimize the concentrations of anti-CD3 and anti-CD28 antibodies, as well as the ratio of IL-2 - a process that is cumbersome and involves variables that are difficult to control.

Th2 cells, as a crucial subset of CD4+ helper T cells, undergo a precisely regulated differentiation process. Naïve CD4+ T cells recognize the MHC class II-peptide complex on the surface of antigen-presenting cells through their T cell receptor, receiving the first signal; simultaneously, they obtain the second signal through costimulatory molecules such as CD28, thereby completing the dual-signal activation.