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Tuesday, 2 September 2014
Circulating tumor cell clusters more likely to cause metastasis than single cells
Circulating tumor cell (CTC) clusters – clumps of from 2 to 50 tumor cells that break off a primary tumor and are carried through the bloodstream – appear to be much more likely to cause metastasis than are single CTCs, according to a study from investigators at the Massachusetts General Hospital (MGH) Cancer Center. Their report also suggests that a cell adhesion protein binding CTC clusters together is a potential therapeutic target. “While CTCs are considered to be precursors of metastasis, the significance of CTC clusters, which are readily detected using devices developed here at MGH, has remained elusive,” says Shyamala Maheswaran, PhD, of the MGH Cancer Center, co-senior author of the Cell paper. “Our findings that the presence of CTC clusters in the blood of cancer patients is associated with poor prognosis may identify a novel and potentially targetable step in the blood-borne spread of cancer.” Read more here.
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