Detection of nonprostatic PSA in serum and nonserum samples from women.

Abstract:

:Prostate-specific antigen (PSA) has been characterized as a specific prostate marker, although recent studies have suggested the existence of PSA of nonprostatic sources. We have assessed the presence of PSA by an ultrasensitive assay in 276 serum and nonserum samples from women. Our data show the presence of PSA in 90% of nonserum samples, including milk secretions, breast cysts, amniotic fluids and broncho-alveolar washings. We have also detected its presence in 58% of the sera tested, although it only exceeded 0.1 microg/l in 6 of the cases. We conclude that PSA can no longer be considered a specific prostate tissue marker; since the concentrations detected in women's serum are ultralow, this finding appears to interfere minimally with its value as a tumoral marker.

journal_name

Int J Cancer

authors

Filella X,Molina R,Alcover J,Carretero P,Ballesta AM

doi

10.1002/(SICI)1097-0215(19961115)68:4<424::AID-IJC

subject

Has Abstract

pub_date

1996-11-15 00:00:00

pages

424-7

issue

4

eissn

0020-7136

issn

1097-0215

pii

10.1002/(SICI)1097-0215(19961115)68:4<424::AID-IJC

journal_volume

68

pub_type

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