Article Text

Download PDFPDF

Immunoreactive determinants of CA 125 in women with endometriosis.
  1. O A Mojiminiyi,
  2. M E Bramwell,
  3. S H Kennedy,
  4. B J Shepstone,
  5. S M Humm,
  6. D H Barlow
  1. University Department of Radiology, Radcliffe Infirmary, Oxford.


    Among 10 patients with endometriosis CA 125 was increased (greater than 35 U/ml) in endometriotic cyst fluid in all the patients, but only two had increased serum concentrations. Gel electrophoresis of serum, endometriotic cyst fluid, and endometriotic tissue resolved the CA 125 immunoreactive fragments from the three sources into bands of similar electrophoretic mobilities. Electrophoresis under reducing and non-reducing conditions showed immunoreactive fragments of apparent masses of 55,000 and 140,000 daltons, respectively. Analysis under reducing conditions did not result in loss of activity. CA 125 antigen is thought to be a high molecular weight glycoprotein complex. As far as is known, this is the first report describing lower molecular weight immunoreactive determinants of CA 125.

    Statistics from

    Request Permissions

    If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.