書誌事項
- タイトル別名
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- Aberrant Wnt-wingless signaling in gallbladder carcinomas
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抄録
To investigate the contribution of β-catenin to the development of gallbladder carcinoma, we searched for genetic alterations of the β-cetenin gene, ctnnb-1. Mutational analysis of exon 3 in ctnnb-1, which encodes the serine/threonine residues for GSK-3β phosphorylation sites was performed for 5 gallbladder cancers with pancreaticobiliary malunion, PMB and 8 noncancerous tissues with PBM. PCR-SSCP analysis showed super-shifted bands in the electrophoretic display, but no mutation was detected through nucleotide sequencing analysis near potential GSK-3βphosphorylation sites. We also performed immunohistochemical analysis of β-catenin protein in all cases, and confirmed accumulation in both the nucleus and cytoplasm in three of 5 cancer tissues, while neighboring noncancerous tissue and the biliary tissue with PBM alone displayed membrane staining. Our results indicated that abnormal Wnt-wingless signaling, resulting in β-catenin accumulations, might be involved in the malignant transformation rather than the development of gallbladder carcinomas.
収録刊行物
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- Tando
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Tando 14 (4), 339-346, 2000
Japan Biliary Association
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詳細情報 詳細情報について
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- CRID
- 1390001205465850496
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- NII論文ID
- 10007326258
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- NII書誌ID
- AN10062001
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- ISSN
- 09140077
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可