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Visualizing MiRNA Regulation of Apoptosis for Investigating the Feasibility of MiRNA-Targeted Therapy Using a

Mingyao Ren1, Zhe Chen1, Chuandong Ge1

  • 1Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.

Pharmaceutics
|July 27, 2022
PubMed

Insights

A novel fluorescent nanoprobe enables simultaneous imaging of microRNA-21 (miRNA-21) and caspase-3 in cancer cells. This tool aids in evaluating miRNA-targeted cancer therapy and developing personalized treatment strategies.

Area of Science:

  • Biomedical Engineering
  • Molecular Oncology
  • Nanotechnology

Background:

  • MicroRNA (miRNA)-targeted therapy is a key area in precision cancer treatment.
  • Understanding miRNA's role in apoptosis is crucial for personalized cancer therapy.
  • Current methods for monitoring miRNA and apoptosis simultaneously are limited.

Purpose of the Study:

  • To develop a novel fluorescent nanoprobe for simultaneous imaging of miRNA-21 and caspase-3.
  • To investigate the application of the nanoprobe for in situ monitoring of miRNA regulation of apoptosis in cancer cells.
  • To assess the utility of this strategy for evaluating miRNA-targeted therapy and drug screening.

Main Methods:

  • Design and synthesis of a fluorescent nanoprobe using gold nanoparticles and a polydopamine shell.
  • Utilizing the nanoprobe for simultaneous detection and imaging of miRNA-21 and caspase-3 in cancer cells.
  • Employing confocal imaging to visualize and analyze the results.

Main Results:

  • The developed nanoprobe successfully achieved simultaneous imaging of miRNA-21 and caspase-3.
  • Confocal imaging confirmed the nanoprobe's capability for in situ monitoring of miRNA's effect on apoptosis.
  • The results demonstrate the nanoprobe's potential in cancer research.

Conclusions:

  • The novel fluorescent nanoprobe provides a valuable tool for studying miRNA-targeted therapy.
  • This approach is critical for investigating the feasibility of miRNA-based cancer treatments.
  • The strategy supports drug screening and the development of personalized cancer therapies.
Keywords:
apoptosiscell imagingfluorescent nanoprobemiRNAreal-time in situ detection

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