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Related Concept Videos

Protein Dynamics in Living Cells01:19

Protein Dynamics in Living Cells

2.1K
Different fluorescence-based techniques are used to study the protein dynamics in living cells. These techniques include FRAP, FRET, and PET.
Fluorescent recovery after photobleaching (FRAP) is a fluorescent-protein-based detection technique used to quantify protein movement rates within the cell. This method exposes a small portion of the cell to an intense laser beam. The laser beam causes permanent photobleaching of the fluorophore-tagged proteins in the exposed region. As the bleached...
2.1K
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  11. Visualized Tracking And Multidimensional Assessing Of Mitochondria-associated Pyroptosis In Cancer Cells By A Small-molecule Fluorescent Probe

Visualized Tracking and Multidimensional Assessing of Mitochondria-Associated Pyroptosis in Cancer Cells by a Small-Molecule Fluorescent Probe

Wenhao Zhao1, Chengyuan Wang1, Yanzhe Zhu2

  • 1School of Chemistry and Chemical Engineering & Institutes of Physical Science and Information Technology, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials & Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Anhui University, Hefei 230601, P. R. China.

Analytical Chemistry
|April 9, 2024

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A Faster, High Resolution, mtPA-GFP-based Mitochondrial Fusion Assay Acquiring Kinetic Data of Multiple Cells in Parallel Using Confocal Microscopy
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A Faster, High Resolution, mtPA-GFP-based Mitochondrial Fusion Assay Acquiring Kinetic Data of Multiple Cells in Parallel Using Confocal Microscopy

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View abstract on PubMed

Summary
This summary is machine-generated.

Researchers developed Mito-DK, a fluorescent probe to track mitochondrial changes during pyroptosis, a cell death process linked to cancer. This tool aids in understanding cancer development and screening new anticancer drugs.

Area of Science:

  • Biochemistry
  • Cell Biology
  • Molecular Oncology

Background:

  • Pyroptosis, a programmed cell death pathway, is implicated in cancer development and treatment.
  • Mitochondrial dysfunction, including changes in mitochondrial DNA (mtDNA) and morphology, can trigger pyroptosis in cancer cells.
  • Simultaneous monitoring of multiple mitochondrial physiological parameters is crucial for accurately assessing pyroptosis.

Purpose of the Study:

  • To develop a novel, non-reaction-based fluorescent probe for visualizing mitochondria-associated pyroptosis.
  • To enable simultaneous, crosstalk-free tracking of mitochondrial polarity, mtDNA, and morphology.
  • To assess the utility of the probe in evaluating pyroptosis induction and inhibition.

Main Methods:

  • A multifunctional small-molecule fluorescent probe, Mito-DK, was synthesized.

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  • Mito-DK was used to monitor changes in mitochondrial polarity, mtDNA, and morphology.
  • Mito-DK was employed to assess pyroptosis induced by palmitic acid/H2O2, doxorubicin, and inhibited by puerarin.

    • Main Results:

    • Mito-DK demonstrated crosstalk-free response to mitochondrial polarity, mtDNA, and morphology.
    • Accurate assessment of mitochondria-associated pyroptosis induced by palmitic acid/H2O2 was achieved.
    • The probe successfully evaluated the pyroptosis-inducing effect of doxorubicin and the inhibiting effect of puerarin.

    Conclusions:

    • Mito-DK provides a novel tool for visualizing mitochondria-associated pyroptosis.
    • The probe offers new approaches for screening pyroptosis-related anticancer agents.
    • This work enhances understanding of pyroptosis in cancer intervention and diagnosis.