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DNA probes are fragments of DNA labeled with a reporter tag to enable their detection or purification. The resulting labeled DNA probes can then hybridize to target nucleic acid sequences through complementary base-pairing, and may be used to recover or identify these regions.
Radioisotopes, fluorophores, or small molecule binding partners like biotin or digoxigenin, are the most widely used reporter tags for labeling DNA probes. These labels can be attached to the probe DNA molecule via...
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Cyanine Conjugate-Based Biomedical Imaging Probes.

Yang Li1, Yiming Zhou1, Xiuli Yue2

  • 1Department of Biomedical Engineering, College of Engineering, Peking University, Beijing, 100871, China.

Advanced Healthcare Materials
|October 1, 2020
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Cyanine dyes, when covalently conjugated, offer advanced biomedical imaging. These probes show promise for targeted cancer diagnostics, though clinical translation faces challenges.

Keywords:
clinical translationcyanine conjugatesmultimodal imagingtargeted fluorescence imaging

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Area of Science:

  • Biomedical Imaging
  • Organic Chemistry
  • Fluorescent Dyes

Background:

  • Cyanine dyes possess excellent fluorescence properties, driving research into their imaging applications.
  • Covalent conjugation of cyanine dyes with other molecules is a key strategy for developing advanced probes.
  • These conjugates have demonstrated significant potential in both fundamental research and clinical settings.

Purpose of the Study:

  • To review recent advancements in cyanine conjugate-based probes for biomedical imaging.
  • To highlight the use of cyanine conjugates in targeted fluorescence and multimodal imaging.
  • To discuss the clinical potential of these probes in cancer diagnostics and associated challenges.

Main Methods:

  • Literature review of recent achievements in cyanine conjugate-based probes.
  • Focus on conjugation strategies with targeting moieties and contrast agents.
  • Analysis of applications in targeted and multimodal biomedical imaging.

Main Results:

  • Cyanine conjugates enable targeted fluorescence imaging through specific warhead conjugation.
  • Integration with other contrast agents facilitates multimodal imaging applications.
  • Significant progress has been made in utilizing these probes for cancer diagnostics.

Conclusions:

  • Cyanine conjugate-based probes represent a powerful tool for biomedical imaging.
  • Targeted imaging and multimodal approaches enhance diagnostic capabilities, particularly in oncology.
  • Overcoming impediments is crucial for the successful clinical translation of these advanced imaging agents.