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. 2019 Dec 18;9:19369. doi: 10.1038/s41598-019-55867-4

Figure 7.

Figure 7

Heterotopic implantation of GM2– or GM2+ cells into nude mice and localization in human PDAC cells. (a) Transplantation of GM2– or GM2+ cells into nude mice. GM2–/+ sorted MIA PaCa-2 cells were transplanted subcutaneously into BALB/cAJcl-nu/nu mice. Tumor formation and size were observed 5 weeks after transplantation. *p < 0.05. (b) Representative photographs of immunohistochemistry for GM2. Normal pancreatic duct (arrows) was negative or faintly positive for GM2. Islet cells (arrowheads) and acinar cells are negative for GM2 (I). The foci of low-grade (II) and high-grade (III) pancreatic intraepithelial neoplasia are negative for GM2. Strong membranous and/or cytoplasmic expression of GM2 is observed in human PDAC cells (IV, inset). (c) A hypothetical model of GM2 expression in pancreatic cancer.