title: Human chorionic gonadotropin beta-subunit synthesis by undifferentiated urothelial carcinoma with syncytiotrophoblastic differentiation.
abstract: An undifferentiated deeply invasive ureteral carcinoma with syncytiotrophoblastic differentiation was analyzed for the synthesis of human chorionic gonadotropin beta-subunit by immunohistochemistry and Northern blot analysis. Human chorionic gonadotropin beta-subunit was localized immunohistochemically to syncytiotrophoblastic cells and scattered mononuclear tumor cells. Human chorionic gonadotropin beta-subunit gene was expressed at a high level by Northern blot analysis. To our knowledge, this is the first report demonstrating the synthesis of human chorionic gonadotropin beta-subunit at the transcriptional level in a urothelial carcinoma.
authors.affiliation: Department of Pathology, Northwestern University Medical School, Chicago, Ill 60611-3008.
authors.forename: R
authors.initials: R
authors.lastname: Oyasu
authors.forename: L
authors.initials: L
authors.lastname: Nan
authors.forename: D P
authors.initials: DP
authors.lastname: Smith
authors.forename: H
authors.initials: H
authors.lastname: Kawamata
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001483:Base Sequence; D015152:Blotting, Northern; D002295:Carcinoma, Transitional Cell / Q000378:metabolism* / Q000473:pathology; D002454:Cell Differentiation; D006063:Chorionic Gonadotropin / Q000096:biosynthesis*; D018997:Chorionic Gonadotropin, beta Subunit, Human; D018076:DNA, Complementary; D015972:Gene Expression Regulation, Neoplastic; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D008875:Middle Aged; D008969:Molecular Sequence Data; D010446:Peptide Fragments / Q000096:biosynthesis*; D012334:RNA, Neoplasm / Q000032:analysis; D014327:Trophoblasts / Q000378:metabolism* / Q000473:pathology; D014516:Ureteral Neoplasms / Q000378:metabolism* / Q000473:pathology; D001749:Urinary Bladder Neoplasms / Q000378:metabolism / Q000473:pathology
chemical_list: D006063:Chorionic Gonadotropin; D018997:Chorionic Gonadotropin, beta Subunit, Human; D018076:DNA, Complementary; D010446:Peptide Fragments; D012334:RNA, Neoplasm