Cited by 81Advanced biosensing and bioanalysis techniquesMolecular Sensors and Ion DetectionDNA and Nucleic Acid Chemistry

Biostable L-DNAzyme for Sensing of Metal Ions in Biological Systems

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Cui, Liang, Peng, Ruizi, Fu, Ting, Zhang, Xiaobing, Wu, Cuichen, Chen, Huapei, Liang, Hao, Yang, Chaoyong James +1 more·2016·Analytical Chemistry

Abstract

DNAzymes, an important type of metal ion-dependent functional nucleic acid, are widely applied in bioanalysis and biomedicine. However, the use of DNAzymes in practical applications has been impeded by the intrinsic drawbacks of natural nucleic acids, such as interferences from nuclease digestion and protein binding, as well as undesired intermolecular interactions with other nucleic acids. On the basis of reciprocal chiral substrate specificity, the enantiomer of D-DNAzyme, L-DNAzyme, could initiate catalytic cleavage activity with the same achiral metal ion as a cofactor. Meanwhile, by using the advantage of nonbiological L-DNAzyme, which is not subject to the interferences of biological matrixes, as recognition units, a facile and stable L-DNAzyme sensor was proposed for sensing metal ions in complex biological samples and live cells.

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Crossref · 10.1021/acs.analchem.5b04170

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  • Several groups have successfully used l-DNA and l-RNA biosensors in living cells.

    “Towards this goal, several groups have successfully employed l-DNA and l-RNA-based biosensors in living cells, supporting the viability of the mirror-image approach.10–13”

    From Direct Comparison of <scp>d</scp>-DNA and <scp>l</scp>-DNA Strand-Displacement Reactions in Living Mammalian Cells (2021) · cites this paper as [12]

    The Results and Discussion section, “Application of L-DNAzymes for Intracellular Metal Ion Imaging” (page not provided), reports an L-DNAzyme biosensor detecting Cu2+ in cultured HeLa cells. This supports one example of a mirror-image biosensor used in living cells, but this paper does not establish the claim about L-RNA biosensors or several groups. (LLM, conf=0.85)

    Experimental — accuracy not yet measured

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Authors
Cui, L., Peng, R., Fu, T., Zhang, X., Wu, C., Chen, H., Liang, H., Yang, C. J., & Tan, W.
Affiliations
  • Hunan University (CN)
  • Xiamen University (CN)
Corresponding author
  • Zhang, Xiaobing
  • Tan, Weihong
Venue
Analytical Chemistry
Published
2015-12-22
Volume
88
Issue
3
Pages
1850-1855
ISSN
  • 0003-2700 (ISSN-L)
  • 1520-6882
OpenAlex
W2216213960
Cited by
81
References
52
Citations by year
2026: 2 · 2025: 4 · 2024: 5 · 2023: 4 · 2022: 8 · 2021: 11 · 2020: 10 · 2019: 13 · 2018: 7 · 2017: 13 · 2016: 4
FWCI
3.47
Type
journal article
Language
en
Open access
Locations
  • Analytical Chemistry (publishedVersion, other-oa)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Cancer Institute (CA133086)
  • National Institute of General Medical Sciences (GM079359)
  • National Natural Science Foundation of China (21221003, 21325520, 21327009, 21405039)
  • Ministry of Science and Technology of the People's Republic of China (2011CB911000, 2011YQ03012412)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Advanced biosensing and bioanalysis techniques
  • Physical Sciences › Chemistry › Spectroscopy › Molecular Sensors and Ion Detection
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA and Nucleic Acid Chemistry
Keywords
DNAzyme, metal ion sensing, biostability, metal cofactors, nucleic acid cleavage, biological specimen, nuclease resistance
MeSH terms
Copper, Enzyme Stability, HeLa Cells, Humans, Ions, Lead, Tumor Cells, Cultured, DNA, Catalytic

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