Journal
HISTOPATHOLOGY
Volume 48, Issue 4, Pages 394-406Publisher
BLACKWELL PUBLISHING
DOI: 10.1111/j.1365-2559.2006.02351.x
Keywords
decidua; endometrium; glycodelin; gynaecological cancer; monoclonal antibodies
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Aims: Glycodelin is a glycoprotein with a molecular weight of 28 kDa. Unusual LacdiNAc structures have been identified on glycodelin A, isolated from amniotic fluid. Three major functions of this glycoprotein have been identified. Glycodelin is an immunosuppressive molecule, a marker of morphological differentiation, and a contraceptive. Because no monoclonal antibodies for glycodelin A are commercially available, our aim was to develop and characterize three monoclonal antibodies against this glycoprotein. Methods and results: Glycodelin A was purified from amniotic fluid by three chromatographic steps and its purity was checked by SDS-PAGE. Antibodies were generated from immunized BALB/c mice. Three IgG1 monoclonal antibodies detecting glycodelin A were cloned. All three antibodies recognized carbohydrate structures of glycodelin A and did not cross-react with glycodelin S. They are applicable to immunohistochemistry (frozen and paraffin sections), ELISA and Western blots. Conclusion: The new antibodies can be used for the detection of glycodelin A in frozen and paraffin-embedded decidual and endometrial tissue. One antibody (A87-B/D2) can be used for the detection of glycodelin in endometrial and ovarian tumour tissues. Because glycodelin A is a major secretory endometrial product during the luteal phase, in early pregnancy and in gynaecological tumours, the new antibodies are, potentially, valuable tools for the study of endometrial development and tumour progression.
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