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Study: Vesicles produced after chemo in mice may aid tumor spread

Researchers studying drug-resistant tumors in mice found that extracellular vesicles produced by cancer cells following certain chemotherapy treatments helped spread tumor material to other parts of the body. "We were surprised to see that chemotherapy was enhancing this process of metastasis, mediated by the vesicles," said Michele De Palma, co-author of the study published in Nature Cell Biology.

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