Background: In the tumor environment, malignant characteristics of cancer cells are promoted by stromal cells under hypoxia. It is unknown whether lysophosphatidic acid (LPA) receptor-mediated signaling is involved in the regulation of cellular functions by endothelial cells in pancreatic cancer cells under hypoxic conditions.
Methods: Pancreatic cancer (PANC-1) cells were co-cultured with endothelial (F2) cells and F2 cell supernatants at 21% and 1% O. The Cell Culture Insert was used to assess the cell motile activity. The cell growth and viability to cisplatin (CDDP) were measured, using the Cell Counting Kit-8.
Results: LPA receptor expression levels were changed in PANC-1 cells co-cultured with F2 cells at 21% and 1% O. The cell motile activities of PANC-1 cells co-cultured with F2 cells at 21% and 1% O were markedly elevated, compared with PANC-1 cells alone. The cell viabilities to CDDP of PANC-1 cells co-cultured with F2 cell supernatants at 21% and 1% O were regulated by the activation of LPA receptors.
Conclusion: These results suggest that LPA receptor-mediated signaling plays an important role in the modulation of pancreatic cancer cell functions by endothelial cells under hypoxic conditions.
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| http://dx.doi.org/10.1016/j.prp.2024.155192 | DOI Listing |
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