Inhibiting specific neuronal cells improves responses in pancreatic cancer in vivo

March 20, 20231 min
Doctor is checking patient x-ray film

Pancreatic cancer is notoriously difficult to treat, partly due to a tumor microenvironment that is highly resistant to immunotherapy. Data for nonmyelinating Schwann cells, which wrap around small neuronal axons to provide support and to promote new sprouting, suggests these cells may facilitate pancreatic tumor invasion into the nervous system.

To further understand the role of these cells, researchers led by Liuqing Yang, Ph.D., and Chunru Lin, Ph.D., characterized the gene signature of tumor-associated nonmyelinating Schwann cells (TASc). The researchers found that the abundance of TASc was correlated with poor patient outcomes. More specifically, TASc express a long noncoding RNA (lncRNA) named PVT1, which triggers a signal pathway that promotes tumor growth. Using a TASc inhibitor in vivo improved treatment response to immune checkpoint inhibitors, highlighting TASc and lncRNAs as potential therapeutic targets for pancreatic cancer.

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