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Am J Clin Pathol. 2007 Sep;128(3):375-81.

Steroid hormone receptor and COX-2 expression in chordoma.

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The Department of Pathology, Vanderbilt University Medical Center and Vanderbilt University School of Medicine, Nashville, TN 37232, USA.


Reports of sex steroid receptor expression in chordoma suggest that these tumors may be responsive to hormone manipulation therapy. Immunohistochemical stains for estrogen receptor (ER)-alpha, ER-beta, progesterone receptor (PR), androgen receptor (AR), and cyclooxygenase 2 (COX-2), were performed on a tissue microarray containing 21 samples of chordoma. Most chordomas expressed COX-2, ER-beta, and AR, whereas ER-alpha and PR stains were negative in all cases. ER-beta expression did not correlate with AR expression (P = .4142; McNemar test). There were no statistically significant correlations between the expression of any of these markers and anatomic location of tumor, patient sex, patient age, or disease-free survival. Chordomas commonly express COX-2, AR, and ER-beta. These findings may have therapeutic implications concerning the use of agents that inhibit or modulate these signaling molecules.

[Indexed for MEDLINE]

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