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  • Title: [Immunohistochemical study of growth factors and oncogenes in gastric carcinomas].
    Author: Yamagiwa H, Onishi N, Onishi T, Onishi T, Onishi H, Satomoto K, Watanabe K, Nishii M.
    Journal: Rinsho Byori; 1993 Jul; 41(7):795-9. PubMed ID: 8103127.
    Abstract:
    Immunohistochemical staining for EGF, EGFR, c-erbB-2, p53, K-ras and PCNA was performed on the formalin-fixed, paraffin embedded sections of resected gastric carcinomas. A relatively high positive rate was observed for EGFR and c-erbB-2 in the well-differentiated adenocarcinomas and p53 in the poorly-differentiated adenocarcinomas. The positive rate of these factor was higher in the advanced cases than in the early cases, and also in the deep invasive area than the superficial area. According to the PCNA staining, a relatively high positive rate was observed in the well-differentiated adenocarcinomas compared with the early cases of poorly-differentiated adenocarcinomas, but the positive rate was markedly higher in the advanced cases of the latter. Typical signet-ring cell carcinomas showed the lowest positivity rate compared with the other histological types of gastric carcinomas.
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