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Related Experiment Videos

Methotrexate uptake by psoriatic epidermis.

J R Taylor, K M Halprin

    The British Journal of Dermatology
    |February 1, 1977
    PubMed
    Summary
    This summary is machine-generated.

    Psoriatic epidermis is more sensitive to methotrexate, but this study found no difference in methotrexate uptake between normal and psoriatic skin cells. Further research is needed to explain this unexpected finding.

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    Area of Science:

    • Dermatology
    • Pharmacology
    • Cell Biology

    Background:

    • Psoriatic epidermis exhibits increased sensitivity to methotrexate compared to normal epidermis.
    • Enhanced active transport of methotrexate into psoriatic cells is a hypothesized reason for this sensitivity.

    Purpose of the Study:

    • To compare methotrexate uptake in normal versus psoriatic epidermis.
    • To investigate the impact of extracellular pH on methotrexate transport in both skin types.

    Main Methods:

    • Quantitative analysis of methotrexate uptake in isolated normal and psoriatic epidermal cells.
    • Experimental manipulation of extracellular pH to assess its influence on transport.

    Main Results:

    • Methotrexate uptake was not significantly greater in psoriatic epidermis compared to normal epidermis.

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  • Extracellular pH demonstrated a potential influence on methotrexate transport, though not differentially between psoriatic and normal cells.

    • Conclusions:

    • The hypothesis of increased methotrexate active transport in psoriatic epidermis is not supported by this study's findings.
    • Alternative explanations for the heightened sensitivity of psoriatic epidermis to methotrexate should be explored.