MC3R and neoplasm: Quantificationof the colocalization of LNPs and tumor cells in the 3D structureof the hindbrain by fluorescence intensity distribution, PCC, andMOC values indicated that AKPC-siYT colocalized with tumor cells,while unmodified MC3-siYT showed no colocalization with tumor cellsin the hindbrain (Figures S5c,e and S6b,d).