title: Expression of glutathione S-transferase-pi messenger RNA in human esophageal cancers.
abstract: The expression of human glutathione S-transferase-pi (GST-pi) in resected primary esophageal tumors and in matching normal esophageal mucosa from 25 patients undergoing radical surgery was measured by RNA blot hybridization. The RNA transcript levels of GST-pi in the tumor tissues were higher than those in normal tissues in 20 of 25 cases (80%). The mean GST-pi mRNA value in the tumor tissues (n = 25) was significantly (P less than 0.01) elevated as compared with that in background mucosa (n = 29), and in ten of 25 tumors (40%) the level of GST-pi mRNA exceeded the mean normal tissue value by two standard deviations (normal mean value + 2 X SD). The results obtained from the current experiment thus suggests that GST-pi might be a useful marker for human esophageal cancer. No correlation between GST-pi mRNA level and clinical stage or histologic characteristics was apparent.
authors.affiliation: Department of Clinical Cancer Chemotherapy, Tohoku University, Sendai, Japan.
authors.forename: C
authors.initials: C
authors.lastname: Ishioka
authors.forename: R
authors.initials: R
authors.lastname: Kanamaru
authors.forename: H
authors.initials: H
authors.lastname: Shibata
authors.forename: Y
authors.initials: Y
authors.lastname: Konishi
authors.forename: A
authors.initials: A
authors.lastname: Ishikawa
authors.forename: A
authors.initials: A
authors.lastname: Wakui
authors.forename: T
authors.initials: T
authors.lastname: Sato
authors.forename: T
authors.initials: T
authors.lastname: Nishihira
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015152:Blotting, Northern; D004938:Esophageal Neoplasms / Q000235:genetics* / Q000473:pathology; D005260:Female; D005982:Glutathione Transferase / Q000235:genetics*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D012333:RNA, Messenger / Q000032:analysis*
chemical_list: D012333:RNA, Messenger; D005982:Glutathione Transferase