PDPN and breast neoplasm: To further assess whether the seemingly enhanced interactions between the spread mAb- decorated T cells and podoplanin rich lymphatics contribute to the overall number of T cell accumulation inside tumor bearing NSG mice recipients, we next co-injected into E0771 breast tumors equal numbers of mSA2-CD8h-tILCD32B1 expressing human T cells, differentially labeled with different cell trackers decorated with either biotinylated anti-podoplanin or isotype control biotin mAb.