LAMP1 and cancer: However, after incubation at 37 °C for 16 h, the intracellular antibody signals colocalized with the signals of LAMP-1 (green), indicating that the mil40-6 (red) can be efficiently internalized in cancer cells through endocytosis (Pearson’s correlation = 0.467; Mander’s overlap = 0.567), which is very similar to the naked antibody mil40 (Pearson’s correlation = 0.538; Mander’s overlap = 0.525).