Abstract:
:Sialyl Le(a) antigen (CA19-9), a member of a family of high molecular weight glycoproteins, was originally described as a gastrointestinal- and pancreatic-specific tumor marker. Recent studies have demonstrated that sialyl Le(a) is a ligand for E-selectin and may play an important role in tumor metastasis. However, expression patterns of sialyl Le(a) have not yet been established in human esophageal carcinomas. In this study, we examined sialyl Le(a) expression and its histopathological localization in human esophageal squamous cell carcinoma. Sialyl Le(a) immunoreactivity was detected in 28 (51.9%) of the 54 esophageal squamous cell carcinomas, regardless of the depth of tumor invasion, vascular invasion or lymph nodal status. In 13 cases (29.5%), significant sialyl Le(a) expression was detected not only in the intramucosal carcinoma components, but also in the invasive carcinoma components. These observation suggested that sialyl Le(a) expression is associated with early-stage cancer progression.
journal_name
Int J Oncoljournal_title
International journal of oncologyauthors
Oshiba G,Kijima H,Tanaka H,Kenmochi T,Himeno S,Kise Y,Nishi T,Chino O,Shimada H,Abe Y,Yamazaki H,Nakamura M,Ueyama Y,Tanaka M,Makuuchi Hkeywords:
subject
Has Abstractpub_date
2000-10-01 00:00:00pages
701-5issue
4eissn
1019-6439issn
1791-2423journal_volume
17pub_type
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