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Articles |
1
Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, 600 University Ave., Toronto, Ontario M5G 1X5, Canada.
2
Department of Clinical Biochemistry, University of
Toronto, Toronto, Ontario M5G 1L5, Canada.
3
Division of Population Science, Fox Chase Cancer Center,
Philadelphia, PA.
a Address correspondence to this author, at Mount Sinai Hospital. Fax (416) 586-8628; e-mail epd{at}playfair.utoronto.ca
We previously found that prostate-specific antigen (PSA) expression in
the female breast is regulated by steroid hormones and their receptors.
We have now examined whether the PSA concentration in serum changes
during the menstrual cycle of healthy women. Among 14 women studied, 3
had serum PSA
4 ng/L; their changes in PSA content during the
menstrual cycle were studied in 7 informative cycles. We found that PSA
concentrations in serum are highest during the mid- to late follicular
phase, drop continuously with a half-life of 35 days between the late
follicular phase and midcycle, and reach a minimum during the mid- to
late luteal phase. PSA changes do not correlate with changes in
lutropin (LH), follitropin (FSH), or estradiol concentrations. However,
PSA peaks seem to follow the progesterone concentration peaks, with a
delay of 1012 days. Sera of some volunteers were tested for their
ability to upregulate PSA protein and PSA mRNA in a tissue culture
system based on the T-47D breast carcinoma cell line. Only sera
obtained during the mid- to late luteal phase were able to upregulate
the PSA mRNA and protein. In stimulation experiments in vitro,
progesterone, but not LH, FSH, estradiol, human chorionic gonadotropin,
prolactin, or growth hormone, was able to upregulate PSA mRNA and
protein in the T-47D cell line. These data suggest that PSA is produced
in a cyclical manner during the menstrual cycle.
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H. Aksoy, F. Akcay, Z. Umudum, A. K. Yildirim, and R. Memisogullari Changes of PSA Concentrations in Serum and Saliva of Healthy Women during the Menstrual Cycle Ann. Clin. Lab. Sci., January 1, 2002; 32(1): 31 - 36. [Abstract] [Full Text] [PDF] |
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H. F. Escobar-Morreale, J. Serrano-Gotarredona, S. Avila, J. Villar-Palasí, C. Varela, and J. Sancho The Increased Circulating Prostate-Specific Antigen Concentrations in Women with Hirsutism Do Not Respond to Acute Changes in Adrenal or Ovarian Function J. Clin. Endocrinol. Metab., July 1, 1998; 83(7): 2580 - 2584. [Abstract] [Full Text] |
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D. N. Melegos and E. P. Diamandis Is Prostate-Specific Antigen Present in Female Serum? Clin. Chem., March 1, 1998; 44(3): 691 - 692. [Full Text] [PDF] |
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