Cellular Internalization and Cytotoxicity of Aptamers Selected from Lung Cancer Cell

  • Xu L
  • Zhang Z
  • Zhao Z
  • et al.
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Abstract

In this work, single-stranded DNA (ssDNA) aptamers against EGFR-transfected A549 cells, one type of non-small cell lung cancer (NSCLC) cells, were selected by cell-SELEX (systematic evolution of ligands by exponential enrichment) and were evaluated. The selected aptamers had high affinity to the A549 cells with dissociation constants in the nanomolar rang. Moreover, the aptamers were able to internalize into the cells, which is advantageous over most of the other existing aptamers. One of the selected aptamers showed significant cytotoxicity by inhibiting the cell proliferation and inducing cell apoptosis. These aptamers are expected to be new molecular probes for cancer cell targeting and drug delivery.

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Xu, L., Zhang, Z., Zhao, Z., Liu, Q., Tan, W., & Fang, X. (2013). Cellular Internalization and Cytotoxicity of Aptamers Selected from Lung Cancer Cell. American Journal of Biomedical Sciences, 47–58. https://doi.org/10.5099/aj130100047

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