Nanobiotechnology for the capture and manipulation of circulating tumor cells

  • Hughes A
  • King M
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A necessary step in metastasis is the dissemination of malignant cells into the bloodstream, where cancer cells travel throughout the body as circulating tumor cells (CTC) in search of an opportunity to seed a secondary tumor. CTC represent a valuable diagnostic tool: evidence indicates that the quantity of CTC in the blood has been shown to relate to the severity of the illness, and samples are readily obtained through routine blood draws. As such, there has been a push toward developing technologies to reliably detect CTC using a variety of molecular and immunocytochemical techniques. In addition to their use in diagnostics, CTC detection systems that isolate CTC in such a way that the cells remain viable will allow for the performance of live-cell assays to facilitate the development of personalized cancer therapies. Moreover, techniques for the direct manipulation of CTC in circulation have been developed, intending to block metastasis in situ. We review a number of current and emerging micro- and nanobiotechnology approaches for the detection, capture, and manipulation of rare CTC aimed at advancing cancer treatment.

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  • Andrew D. Hughes

  • Michael R. King

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