Expression data from subcutaneous PDAC xenograft tumor tissue of lactation mice and ctrl mice.

Progestin secretion increases remarkably during pregnancy and lactation. To explore how prolactin affect tumor growth, we used microarray to detailed the different expressed genes between lactation mice and ctrl mice. For obtaining subcutaneous xenograft tumor, a total of 2 × 106 KPC1199 cells were injected subcutaneously in the right back of the mouse once it was pregnant or started breastfeeding. All mice including control mice were sacrificed after injection for 20 days at the same age.