Researchers have believed for a long time that cancerous stem cells may trigger reproduction and growth of cells within a cancer. These cancerous stem cells lurking within the cancer, under the radar of cancer drugs that target cell proliferation, may underlie the relapse of tumours after surgery of the primary tumour or other cancer treatments. Moreover, without the cancer, stem cells cannot metastasize, or spread. … Continue reading New research supports theory that cancer is a ‘stem-cell disease’.