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Enzyme markers in human prostatic carcinoma.

T M Chu, M C Wang, R Kuciel

    Cancer Treatment Reports
    |March 1, 1977
    PubMed
    Summary
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    This study explored acid phosphatase and ribonuclease (RNase) isoenzymes for early prostate cancer detection. Simultaneous measurement of both serum enzymes may improve diagnostic accuracy for this malignancy.

    Area of Science:

    • Biochemistry
    • Oncology
    • Medical Diagnostics

    Background:

    • Early detection of prostate cancer is crucial for effective treatment.
    • Acid phosphatase and ribonuclease (RNase) are enzymes of interest in prostate cancer research.

    Purpose of the Study:

    • To investigate acid phosphatase isoenzyme patterns in prostate cancer patients.
    • To evaluate serum ribonuclease (RNase) activity in prostate cancer.
    • To determine the potential of combined enzyme measurements for early prostate cancer diagnosis.

    Main Methods:

    • Isoelectric focusing was used to analyze acid phosphatase isoenzymes in serum and prostatic tissues.
    • Serum ribonuclease (RNase) activity was measured in patients.
    • Enzyme activities were correlated with cancer presence and severity.

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    Main Results:

    • At least eight acid phosphatase isoenzymes were identified.
    • Elevated serum acid phosphatase activity correlated with specific isoenzymes (pI 4.5-5.0).
    • Malignant tissue showed quantitative differences in acid phosphatase isoenzymes compared to benign tissue.
    • Serum ribonuclease (RNase) activity was significantly elevated in prostate cancer patients.
    • No direct correlation was found between serum acid phosphatase and RNase activity, but elevated RNase was observed even with normal acid phosphatase levels.

    Conclusions:

    • Serum acid phosphatase isoenzyme analysis can provide insights into prostate cancer.
    • Elevated serum ribonuclease (RNase) activity is a potential biomarker for prostate cancer.
    • Simultaneous measurement of serum acid phosphatase and ribonuclease (RNase) may enhance the diagnostic sensitivity and specificity for prostate cancer.