Researchers from the Medical University of Vienna have found a possible clue regarding mesothelioma’s resistance to chemotherapy. They believe that cancer cells break away during normal chemotherapy, circulate throughout the body, and then rejoin together into “cancer clusters” that drugs cannot penetrate. This new insight could lead researchers to create new treatments that fight these chemo-resistant cancer clusters, increasing survival for some mesothelioma patients.

https://www.mesotheliomahelp.org/2016/04/cancer-clusters-cause-mesotheliomas-chemo-resistance-97354/