Isolation and adoptive transfer of innate lymphoid cells 2 to a recipient mouse model of PDAC

Innate lymphoid cells 2 (ILC2) play a significant role in the tumorigenesis of pancreatic ductal adenocarcinoma (PDAC). An important aspect of ILC2-mediated tumorigenesis is the expansion of the resident ILC2 and simultaneous recruitment of the peripheral ILC2. Here, we describe a protocol for isolation, enrichment, and DiD labeling of ILC2 for in vivo tracking of ILC2s in the mouse. Further, we describe steps for the adoptive transfer of ILC2 to a recipient mouse model of PDAC. For complete details on the use and execution of this protocol, please refer to Alam et al. (2022).