The following submission statement was provided by /u/blaspheminCapn:

In the new study, Cambridge scientists discovered not just a new mechanism for metastasis, but completely recontextualized its role. It’s long been thought that metastasis was an abnormal process that arises in cancer, but the new study found that it’s a process used by healthy cells as well – cancer just hijacks it for its own purposes.

Please reply to OP's comment here: https://old.reddit.com/r/Futurology/comments/xuis0b/cambridge_cancer_breakthrough_may_prompt_rethink/iqvm841/