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Related Experiment Videos

Prostate-specific antigen immunoreactivity in spinal fluid

J M Wolff1, H Borchers, O Kunitz

  • 1Department of Urology, RWTH Aachen, Germany.

Urologia Internationalis
|January 1, 1997
PubMed
Summary
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Prostate-specific antigen (PSA) is found in human spinal fluid, particularly in men. This study confirms PSA is present in bodily fluids beyond the prostate.

Area of Science:

  • Biochemistry
  • Urology
  • Neuroscience

Background:

  • Prostate-specific antigen (PSA) is increasingly detected in various human tissues, challenging its traditional role as prostate-specific.
  • The physiological function and distribution of PSA in non-prostate tissues remain largely unelucidated.

Purpose of the Study:

  • To investigate the presence and levels of PSA in human cerebrospinal fluid (CSF).
  • To determine the distribution of PSA in the human body, specifically within the central nervous system.

Main Methods:

  • Measurement of PSA concentrations in cerebrospinal fluid (CSF) and serum samples from 34 men and 6 women.
  • CSF samples were collected pre-spinal anesthesia and stored at -20°C prior to analysis.

Main Results:

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  • PSA was detected in the CSF of male participants, with a median concentration of 0.03 ng/ml.
  • PSA levels were below the detection limit in the CSF of female participants.
  • A significant positive correlation (r = 0.85, p < 0.001) was observed between CSF PSA and serum PSA levels in men.

Conclusions:

  • These findings confirm that PSA is detectable in human cerebrospinal fluid.
  • The results support recent literature suggesting PSA's presence in diverse human tissues and fluids, extending beyond the prostate.