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Related Concept Videos

Three-Dimensional Microscopy in Microbiology01:28

Three-Dimensional Microscopy in Microbiology

Three-dimensional imaging techniques are essential in cell biology, allowing researchers to visualize intricate cellular structures with high resolution. Two prominent methods, Differential Interference Contrast Microscopy (DIC) and Confocal Scanning Laser Microscopy (CSLM), provide distinct advantages for imaging live and thick specimens, respectively.Differential Interference Contrast MicroscopyDIC microscopy enhances contrast in transparent, unstained samples by converting phase...

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Assessing drug uptake and response differences in 2D and 3D cellular environments using stimulated Raman scattering

Fiona Xi Xu, Rui Sun, Ryan Owens

    Biorxiv : the Preprint Server for Biology
    |May 7, 2024
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    Three-dimensional (3D) cell cultures show higher cancer drug resistance than 2D cultures, not solely due to drug uptake. Stimulated Raman scattering microscopy revealed similar drug levels but reduced growth impact in 3D models, indicating enhanced drug tolerance.

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    Area of Science:

    • Biomedical Engineering
    • Cancer Research
    • Microscopy Techniques

    Background:

    • Cell culture architecture (2D vs. 3D) influences cellular behavior and drug response.
    • Three-dimensional (3D) cell cultures often exhibit increased resistance to cancer chemotherapeutic drugs compared to 2D cultures.
    • Limited experimental techniques exist for spatial molecular profiling in 3D cultures to understand drug resistance mechanisms.

    Conclusions:

    • Increased drug resistance in 3D cell cultures is not solely explained by intracellular drug uptake differences.
    • Enhanced drug tolerance within the 3D microenvironment and factors like limited drug penetration contribute to resistance.
    • SRS microscopy is a valuable tool for spatially resolved analysis of drug uptake and response in complex 3D tumor models.
    • This study provides insights into the mechanisms underlying drug resistance in 3D tumor models, crucial for developing effective cancer therapies.