title: Mixed serous carcinoma of the endometrium with trophoblastic differentiation: analysis of the p53 tumor suppressor gene suggests stem cell origin.
abstract: The pathogenesis of mixed endometrial adenocarcinoma with trophoblastic differentiation is quite unclear at times. The present study examines a serous carcinoma with choriocarcinomatous differentiation. p53 staining was seen in the serous component and the cytotrophoblastic cells of the choriocarcinomatous component, but not in the syncytiotrophoblastic cells. p53 mutational analysis showed a heterozygotic mutation at exon 8 for the choriocarcinomatous component and a homozygote deletion at exon 7 for the serous component. These alterations suggest that the multidirectional tumor differentiation might occur from a common stem cell in these malignancies.
authors.affiliation: Institute of Pathology, University of Leipzig, D-04103 Leipzig, Germany. hornl@medizin.uni-leipzig.de
authors.forename: Lars-Christian
authors.initials: LC
authors.lastname: Horn
authors.forename: Claudia
authors.initials: C
authors.lastname: Hänel
authors.forename: Erika
authors.initials: E
authors.lastname: Bartholdt
authors.forename: Jochen
authors.initials: J
authors.lastname: Dietel
mesh_terms: D000230:Adenocarcinoma / Q000235:genetics* / Q000378:metabolism / Q000473:pathology; D001483:Base Sequence; D014408:Biomarkers, Tumor / Q000378:metabolism; D019070:Cell Lineage; D002467:Cell Nucleus / Q000378:metabolism; D002822:Choriocarcinoma / Q000235:genetics* / Q000378:metabolism / Q000473:pathology; D004252:DNA Mutational Analysis; D004273:DNA, Neoplasm / Q000032:analysis; D016889:Endometrial Neoplasms / Q000235:genetics* / Q000378:metabolism / Q000473:pathology; D005260:Female; D006801:Humans; D008875:Middle Aged; D008969:Molecular Sequence Data; D009378:Neoplasms, Multiple Primary / Q000235:genetics* / Q000378:metabolism / Q000473:pathology; D013234:Stem Cells; D014328:Trophoblastic Neoplasms / Q000235:genetics* / Q000378:metabolism / Q000473:pathology; D016159:Tumor Suppressor Protein p53 / Q000235:genetics* / Q000378:metabolism
chemical_list: D014408:Biomarkers, Tumor; D004273:DNA, Neoplasm; D016159:Tumor Suppressor Protein p53