Constanze Banz1, Ute Ungethuem2, Ralf-Juergen Kuban3, Klaus Diedrich1, Ernst Lengyel4, Daniela Hornung5. 1. Department of Gynecology and Obstetrics, University of Schleswig-Holstein, Campus Luebeck, Luebeck, Germany. 2. Laboratory for Functional Genomic Research, Campus Charité Mitte, Berlin, Germany. 3. Biochemical Institute, Campus Charité Mitte, Berlin, Germany. 4. Department of Gynecology and Obstetrics, Section of Gynecologic Oncology, University of Chicago, Chicago, Illinois. 5. Department of Gynecology and Obstetrics, University of Schleswig-Holstein, Campus Luebeck, Luebeck, Germany. Electronic address: d.hornung@gmx.de.
Abstract
OBJECTIVE: To determine whether endometriosis-associated endometrioid cancer (EAOC) is a specific entity compared with endometrioid cancer not associated with endometriosis (OC). DESIGN: Case-control study. SETTING: University hospital research laboratory. PATIENT(S): Seven patients with endometriosis-associated ovarian cancer EAOC and five patients each with OC, ovarian endometriosis, and benign ovaries. INTERVENTION(S): Ovarian tissue samples were collected from surgical procedures. MAIN OUTCOME MEASURE(S): We hybridized cRNA samples to the Affymetrix HG-U133A microarray chip. Representative genes were validated by real time polymerase chain reaction. RESULT(S): We identified two main groups of genes: The first group contained the genes SICA2, CCL14, and TDGF1. These genes were equally regulated in endometriosis and EAOC but not in OC and benign ovaries. The second group contained the genes StAR, SPINT1, Keratin 8, FoxM1B, FOLR1, CRABP1, and Claudin 7. They were equally regulated in EAOC and OC but not in ovarian endometriosis and benign ovaries. CONCLUSION(S): That the first group is composed of the cytokines SICA2 and CCL14 and the growth factor TDGF1 indicates that the regulation of the autoimmune system and of inflammatory cytokines may be very important in the etiology of endometriosis and EAOC. That the second group is composed of genes that play a central role in cell-cell interaction, differentiation, and cell proliferation indicates that they may be important in the development of ovarian cancer in women with endometriosis. Copyright (c) 2010. Published by Elsevier Inc.
OBJECTIVE: To determine whether endometriosis-associated endometrioid cancer (EAOC) is a specific entity compared with endometrioid cancer not associated with endometriosis (OC). DESIGN: Case-control study. SETTING: University hospital research laboratory. PATIENT(S): Seven patients with endometriosis-associated ovarian cancer EAOC and five patients each with OC, ovarian endometriosis, and benign ovaries. INTERVENTION(S): Ovarian tissue samples were collected from surgical procedures. MAIN OUTCOME MEASURE(S): We hybridized cRNA samples to the Affymetrix HG-U133A microarray chip. Representative genes were validated by real time polymerase chain reaction. RESULT(S): We identified two main groups of genes: The first group contained the genes SICA2, CCL14, and TDGF1. These genes were equally regulated in endometriosis and EAOC but not in OC and benign ovaries. The second group contained the genes StAR, SPINT1, Keratin 8, FoxM1B, FOLR1, CRABP1, and Claudin 7. They were equally regulated in EAOC and OC but not in ovarian endometriosis and benign ovaries. CONCLUSION(S): That the first group is composed of the cytokines SICA2 and CCL14 and the growth factor TDGF1 indicates that the regulation of the autoimmune system and of inflammatory cytokines may be very important in the etiology of endometriosis and EAOC. That the second group is composed of genes that play a central role in cell-cell interaction, differentiation, and cell proliferation indicates that they may be important in the development of ovarian cancer in women with endometriosis. Copyright (c) 2010. Published by Elsevier Inc.
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