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P16 protein abnormality in Epstein-Barr virus-associated gastric carcinomas. 2006

Hitoshi Ojima, and Kana Saito, and Hayato Yamauchi, and Ei Yamaki, and Akihito Idetu, and Yasuo Hosouchi, and Yasuji Nishida, and Katuhiko Tukada, and Hiroyuki Kato, and Hiroyuki Kuwano
Department of Surgery, Gunma Prefecture Saiseikai-Maebashi Hospital, 564-1 Kami-shinden, Maebashi, Gunma 371-0821, Japan. hojima@showa.gunma-u.ac.jp

BACKGROUND The Epstein-Barr virus (EBV) has been detected in lymphoepithelioma of the nasopharynx and lymphoepithelioma-like carcinomas in various organs. Ten percent of gastric carcinomas, including lymphepithelioma-like carcinoma and adenocarcinoma, are associated with EBV infection. The p16 protein is a cyclin-dependent kinase (CDK) inhibitor that decelerates the cell cycle, inactivating the CDKs that phosphorylate retinoblastoma (Rb) protein. METHODS To clarify the relationship between p16 overexpression and EBV-associated gastric carcinomas, immunohistochemical analysis of p16 and detection of EBV by in situ hybridization were performed on 238 formalin-fixed and paraffin-embedded samples of gastric carcinomas. RESULTS The non-expression of p16 protein in EBV-positive and -negative carcinoma was 81.5% (53 out of 65 samples) and 26.6% (46 out of 173 samples), respectively (p < 0.001). CONCLUSIONS We suggest that the carcinogenesis of EBV-associated gastric cancers may be closely associated with a p16 abnormality.

UI MeSH Term Description Entries
D007150 Immunohistochemistry Histochemical localization of immunoreactive substances using labeled antibodies as reagents. Immunocytochemistry,Immunogold Techniques,Immunogold-Silver Techniques,Immunohistocytochemistry,Immunolabeling Techniques,Immunogold Technics,Immunogold-Silver Technics,Immunolabeling Technics,Immunogold Silver Technics,Immunogold Silver Techniques,Immunogold Technic,Immunogold Technique,Immunogold-Silver Technic,Immunogold-Silver Technique,Immunolabeling Technic,Immunolabeling Technique,Technic, Immunogold,Technic, Immunogold-Silver,Technic, Immunolabeling,Technics, Immunogold,Technics, Immunogold-Silver,Technics, Immunolabeling,Technique, Immunogold,Technique, Immunogold-Silver,Technique, Immunolabeling,Techniques, Immunogold,Techniques, Immunogold-Silver,Techniques, Immunolabeling
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D004854 Herpesvirus 4, Human The type species of LYMPHOCRYPTOVIRUS, subfamily GAMMAHERPESVIRINAE, infecting B-cells in humans. It is thought to be the causative agent of INFECTIOUS MONONUCLEOSIS and is strongly associated with oral hairy leukoplakia (LEUKOPLAKIA, HAIRY;), BURKITT LYMPHOMA; and other malignancies. Burkitt Herpesvirus,Burkitt Lymphoma Virus,E-B Virus,EBV,Epstein-Barr Virus,Human Herpesvirus 4,Infectious Mononucleosis Virus,Burkitt's Lymphoma Virus,HHV-4,Herpesvirus 4 (gamma), Human,Burkitts Lymphoma Virus,E B Virus,E-B Viruses,Epstein Barr Virus,Herpesvirus, Burkitt,Infectious Mononucleosis Viruses,Lymphoma Virus, Burkitt,Mononucleosis Virus, Infectious,Mononucleosis Viruses, Infectious
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000230 Adenocarcinoma A malignant epithelial tumor with a glandular organization. Adenocarcinoma, Basal Cell,Adenocarcinoma, Granular Cell,Adenocarcinoma, Oxyphilic,Adenocarcinoma, Tubular,Adenoma, Malignant,Carcinoma, Cribriform,Carcinoma, Granular Cell,Carcinoma, Tubular,Adenocarcinomas,Adenocarcinomas, Basal Cell,Adenocarcinomas, Granular Cell,Adenocarcinomas, Oxyphilic,Adenocarcinomas, Tubular,Adenomas, Malignant,Basal Cell Adenocarcinoma,Basal Cell Adenocarcinomas,Carcinomas, Cribriform,Carcinomas, Granular Cell,Carcinomas, Tubular,Cribriform Carcinoma,Cribriform Carcinomas,Granular Cell Adenocarcinoma,Granular Cell Adenocarcinomas,Granular Cell Carcinoma,Granular Cell Carcinomas,Malignant Adenoma,Malignant Adenomas,Oxyphilic Adenocarcinoma,Oxyphilic Adenocarcinomas,Tubular Adenocarcinoma,Tubular Adenocarcinomas,Tubular Carcinoma,Tubular Carcinomas
D013274 Stomach Neoplasms Tumors or cancer of the STOMACH. Cancer of Stomach,Gastric Cancer,Gastric Neoplasms,Stomach Cancer,Cancer of the Stomach,Gastric Cancer, Familial Diffuse,Neoplasms, Gastric,Neoplasms, Stomach,Cancer, Gastric,Cancer, Stomach,Cancers, Gastric,Cancers, Stomach,Gastric Cancers,Gastric Neoplasm,Neoplasm, Gastric,Neoplasm, Stomach,Stomach Cancers,Stomach Neoplasm
D017403 In Situ Hybridization A technique that localizes specific nucleic acid sequences within intact chromosomes, eukaryotic cells, or bacterial cells through the use of specific nucleic acid-labeled probes. Hybridization in Situ,Hybridization, In Situ,Hybridizations, In Situ,In Situ Hybridizations
D019941 Cyclin-Dependent Kinase Inhibitor p16 A product of the p16 tumor suppressor gene (GENES, P16). It is also called INK4 or INK4A because it is the prototype member of the INK4 CYCLIN-DEPENDENT KINASE INHIBITORS. This protein is produced from the alpha mRNA transcript of the p16 gene. The other gene product, produced from the alternatively spliced beta transcript, is TUMOR SUPPRESSOR PROTEIN P14ARF. Both p16 gene products have tumor suppressor functions. CDKN2 Protein,CDKN2A Protein,Cdk4-Associated Protein p16,Cyclin-Dependent Kinase Inhibitor-2A,INK4A Protein,MTS1 Protein,Multiple Tumor Suppressor-1,p16(INK4A),p16INK4 Protein,p16INK4A Protein,Cdk4 Associated Protein p16,Cyclin Dependent Kinase Inhibitor 2A,Cyclin Dependent Kinase Inhibitor p16,Multiple Tumor Suppressor 1,Protein, INK4A

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