Expression of class I histone deacetylases (HDAC1 and HDAC2) in oesophageal adenocarcinomas

• Verfasst von: Langer, Rupert [VerfasserIn]
• Verfasst von: Mutze, Kathrin Isabelle Amelie [VerfasserIn]
• Verfasst von: Becker, Karen [VerfasserIn]
• Verfasst von: Feith, Marcus [VerfasserIn]
• Verfasst von: Ott, Katja [VerfasserIn]
• Verfasst von: Höfler, Heinz [VerfasserIn]
• Verfasst von: Keller, Gisela [VerfasserIn]
• Titel: Expression of class I histone deacetylases (HDAC1 and HDAC2) in oesophageal adenocarcinomas
• Titelzusatz: an immunohistochemical study
• Verf.angabe: Rupert Langer, Kathrin Mutze, Karen Becker, Marcus Feith, Katja Ott, Heinz Höfler, Gisela Keller
• E-Jahr: 2010
• Jahr: 5 October 2010
• Umfang: 5 S.
• Fussnoten: Gesehen am 09.03.2023
• Titel Quelle: Enthalten in: Journal of clinical pathology
• Ort Quelle: London : BMJ Publ. Group, 1947
• Jahr Quelle: 2010
• Band/Heft Quelle: 63(2010), 11 vom: Okt., Seite 994-998
• ISSN Quelle: 1472-4146
• DOI: doi:10.1136/jcp.2010.080952
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: chemotherapy
• Sach-SW: chemotherapy response
• Sach-SW: expression
• Sach-SW: GI neoplasms, oncology
• Sach-SW: HDAC
• Sach-SW: Histone deacetylase
• Sach-SW: oesophagus adenocarcinoma
• Sach-SW: tumour markers
• K10plus-PPN: 1838751289

Abstract

Background Histone deacetylases (HDACs) are enzymes which play a central role in post-translational histone and non-histone protein modification. Deregulation of HDACs has been detected in various human malignancies and may also influence response to chemotherapy. - Aims To investigate the expression of class I histone deacetylase (HDAC) isoforms 1 and 2 in oesophageal adenocarcinomas. - Methods 132 primary resected tumours and 48 tumours treated by chemotherapy were analysed. Expression of HDAC1 and HDAC2 was determined by immunohistochemistry, applied on a tissue microarray and on pretherapeutic biopsies, and correlated with pathological features and prognosis. - Results There was negative or low expression of HDAC1 in 54% of tumours, moderate expression in 41% and high expression in 5%. HDAC2 expression was negative or low in 30% of tumours, moderate in 47% and high in 21%. In primary resected tumours, high HDAC2 levels were associated with lymphatic tumour spread and lower tumour differentiation grade. HDAC1 levels were not associated with pT, pN category or tumour differentiation grade. For neoadjuvant treated tumours, there was only a trend for an association with high pretherapeutic HDAC2 expression and tumour regression after chemotherapy. Pretherapeutic HDAC1 levels were not associated with regression after chemotherapy. Survival analysis failed to show any prognostic impact of HDAC1 or HDAC2 expression. - Conclusions High HDAC2 expression is associated with aggressive tumour behaviour in oesophageal adenocarcinomas. No significant prognostic value could be found with respect to overall survival or an association with response to conventional chemotherapy for HDAC expression. Immunohistochemical determination of HDACs may be useful for prediction of response to specific HDAC inhibitors.