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Discrimination of Invasive Human Skin Tumor Using an Ultrafast ATP-Proton AND-Gate Probe.

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Researchers developed a novel fluorescence probe to visualize invasive cancer. This probe detects the acidic tumor environment and high ATP levels in actively growing cells, aiding early cancer detection.

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Area of Science:

  • Oncology
  • Biomedical Engineering
  • Molecular Imaging

Background:

  • Cancer cell proliferation is linked to cell cycle dysregulation, making tumor evaluation crucial for assessing invasiveness and recurrence.
  • Current molecular probes lack the ability to differentiate actively growing tumors from resting ones, despite its significance.

Purpose of the Study:

  • To develop a novel fluorescence probe for visualizing invasive tumor areas.
  • To enable discrimination between actively growing and resting tumor cells.

Main Methods:

  • Designed a fluorescence probe with synergistic response to tumor acidity and high intracellular ATP levels.
  • Utilized ultrafast ATP detection with high specificity.
  • Employed two-photon microscopy for visualization.

Main Results:

  • The probe successfully visualized invasive tumor areas.
  • Distinguished between basal cell carcinomas and squamous cell carcinomas in early stages.
  • Demonstrated the probe's utility in distinguishing tumor microenvironments.

Conclusions:

  • The developed fluorescence probe offers a novel strategy for visualizing invasive tumors.
  • This technology aids in the early detection and characterization of cancers like basal cell carcinoma and squamous cell carcinoma.
  • The probe's ability to respond to tumor-specific conditions (acidity and ATP) enhances diagnostic capabilities.