![Cancer cells may not travel alone during metastasis.](/sites/default/files/assets/news/images/ln-metastasis.jpg)
Metastasis, the spread of cancer from its original site, is associated with the great majority of cancer deaths. Researchers have shown, in a mouse model, that when pancreatic cancer cells spread, they appear to be accompanied by non-cancerous cells from the same organ. The non-cancer cells may help make the environment suitable for the cancer to grow in the new location.
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