IL6R and neoplasm: The increase in secretion of IL-6 protein in conditioned media from Kin1-NULL cells was confirmed by ELISA (Figure 5B), while bulk tumor RNA analysis of Kin1-WT and Kin1-NULL tumors showed changes in IL-6-related genes, with an increase in Il6, Il6ra, and Il6st found in Kin1-NULL tumors (Figure 5C).