Biotechnology Bulletin ›› 2020, Vol. 36 ›› Issue (7): 235-244.doi: 10.13560/j.cnki.biotech.bull.1985.2019-1115

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Screening and Evaluation Strategies of Cell-specific Nucleic Acid Aptamers

YUHAN Jie-yu, ZHU Li-ye, CHEN Xu, HE Xiao-yun, XU Wen-tao   

  1. College of Food Science and Nutritional Engineering,China Agricultural University,Beijing 100083
  • Received:2019-11-15 Online:2020-07-26 Published:2020-07-28

Abstract: As recognition molecules of cell surface information,cell-specific nucleic acid aptamers have received extensive attentions. The screening method is different from ordinary small molecules and macromolecules. The maintenance of cell viability,the removal of dead cell interference and the feasibility of the application of the aptamer are all important in the screening process. Screening of cell aptamers has always been a focus of research. This paper reveals the screening methods based on cell surface markers,whole-cell,tissue and in vivo. Meanwhile,the screened aptamers will be evaluated from the aspects of affinity,specificity,cell viability,and the feasibility in clinical tissue and in vivo,aiming at providing reference for the selection and evaluation of cell-specific nucleic acid aptamers.

Key words: aptamer, cell, systematic evolution of ligands by exponential enrichment(SELEX), evaluation