4.7 Article

Enzymatic cleavage of uracil-containing single-stranded DNA linkers for the efficient release of affinity-selected circulating tumor cells

Journal

CHEMICAL COMMUNICATIONS
Volume 51, Issue 15, Pages 3266-3269

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c4cc09765c

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Funding

  1. NIH (IMAT) [R21-CA173279]
  2. University Cancer Research Fund (UNC)
  3. Lineberger Comprehensive Cancer Center (UNC)
  4. Carlson Foundation
  5. Triad Golfers Against Cancer

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We report a novel strategy to enzymatically release affinity-selected cells, such as circulating tumor cells (CTCs), from surfaces with high efficiency (similar to 90%) while maintaining cell viability (>85%). The strategy utilizes single-stranded DNAs that link a capture antibody to the surfaces of a CTC selection device. The DNA linkers contain a uracil residue that can be cleaved.

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