title: Syndecan-1 expression in cancer of the uterine cervix: association with lymph node metastasis.
abstract: The development of carcinoma is associated with alterations in the expression of many cell adhesion molecules. Syndecan-1 is a cell surface proteoglycan that binds cells to the extracellular matrix and changes its expression following malignant transformation in some tumors. Our purpose was to examine the pattern of syndecan-1 expression in cancer of the uterine cervix and assess the clinicopathological significance of syndecan-1 expression. A total of 106 tissue specimens (6 normal, 19 cervical intraepithelial neoplasia (CIN) and 81 invasive cancer) were analyzed immunohistochemically. In addition, the corresponding expression of mRNA in tumor tissues was evaluated by reverse transcription-polymerase chain reaction (RT/PCR) in comparison with normal counterparts. Syndecan-1 was positive in normal squamous cells except the basal cell layer. The intensity of syndecan-1 staining was the strongest in normal epithelium, followed by CIN, and invasive squamous cell carcinoma. Syndecan-1 expression in cancer tissue tended to be higher in keratinizing type than non-keratinizing type and not found in adenocarcinoma. Syndecan-1 expression was markedly decreased at the mRNA level in invasive squamous cell carcinoma as compared with that of normal uterine cervix. Interestingy, there was an inverse correlation between the expression of syndecan-1 in the primary site and lymph node metastasis, although there was no significant correlation between syndecan-1 expression and the prognosis. The results of the present study suggest that syndecan-1 expression is associated with squamous tissues and plays a key role in the progression of the cancer of the uterine cervix especially in the metastatic process.
authors.affiliation: Department of Obstetrics and Gynecology, Yamaguchi University School of Medicine, Yamaguchi 755-8505, Japan. fnuma@po.cc.yamaguchi-u.ac.jp
authors.forename: Fumitaka
authors.initials: F
authors.lastname: Numa
authors.forename: Kei
authors.initials: K
authors.lastname: Hirabayashi
authors.forename: Keiko
authors.initials: K
authors.lastname: Kawasaki
authors.forename: Yuko
authors.initials: Y
authors.lastname: Sakaguchi
authors.forename: Norihiro
authors.initials: N
authors.lastname: Sugino
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Suehiro
authors.forename: Yoshinori
authors.initials: Y
authors.lastname: Suminami
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Hirakawa
authors.forename: Kenji
authors.initials: K
authors.lastname: Umayahara
authors.forename: Shugo
authors.initials: S
authors.lastname: Nawata
authors.forename: Hidenobu
authors.initials: H
authors.lastname: Ogata
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Kato
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D018196:Carcinoma, Adenosquamous / Q000378:metabolism* / Q000556:secondary; D002584:Cervix Uteri / Q000378:metabolism; D017931:DNA Primers / Q000737:chemistry; D005260:Female; D006801:Humans; D007124:Immunoenzyme Techniques; D007889:Leiomyoma / Q000378:metabolism; D008207:Lymphatic Metastasis; D008562:Membrane Glycoproteins / Q000096:biosynthesis* / Q000235:genetics; D008875:Middle Aged; D009363:Neoplasm Proteins / Q000096:biosynthesis* / Q000235:genetics; D011509:Proteoglycans / Q000096:biosynthesis* / Q000235:genetics; D012333:RNA, Messenger / Q000096:biosynthesis; D020133:Reverse Transcriptase Polymerase Chain Reaction; D053668:Syndecan-1; D053667:Syndecans; D002583:Uterine Cervical Neoplasms / Q000378:metabolism* / Q000556:secondary; D002578:Uterine Cervical Dysplasia / Q000378:metabolism* / Q000556:secondary
chemical_list: D017931:DNA Primers; D008562:Membrane Glycoproteins; D009363:Neoplasm Proteins; D011509:Proteoglycans; D012333:RNA, Messenger; C508241:SDC1 protein, human; D053668:Syndecan-1; D053667:Syndecans