Expression profile of histone deacetylase 1 in gastric cancer tissues

Jae Hoon Choi, Ho Jeong Kwon, Byung Ii Yoon, Jin Hyun Kim, Sang Uk Han, Hee Jae Joo, Dae Yong Kim

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307 Citations (Scopus)


Although histone deacetylases (HDACs) appear to play a crucial role in carcinogenesis, the expression status of HDACs in primary human cancer tissues has not yet been reported. In this study, we investigated the expression level of HDAC1 in 25 paired primary human gastric cancer (GC) tissues and corresponding normal tissues through semi-quantitative RT-PCR and immunoblot analysis. The HDAC1 expression pattern was also topologically examined through immunohistochemistry. Overexpression of HDAC1 mRNA was detected in 68% of GC tissues (17 of 25), and the relative density of HDAC1 mRNA in GC tissue was increased 1.8-fold versus the normal counterpart (P<0.01). Elevated expression of HDAC1 protein was also detected in 61% of GC samples (11 of 18), which also showed an increased mRNA level of HDAC. Immunohistochemically, overexpression of HDAC1 was predominantly localized in the nucleic of most neoplastic cells, including embolic tumor cells, whereas normal glandular epithelial cells revealed only weak HDAC1 expression that was focal in distribution. Thus, the present study clearly demonstrates that HDAC1 is overexpressed in GC and probably plays a significant role in gastric carcinogenesis.

Original languageEnglish
Pages (from-to)1300-1304
Number of pages5
JournalJapanese Journal of Cancer Research
Issue number12
Publication statusPublished - 2001

All Science Journal Classification (ASJC) codes

  • Oncology
  • Cancer Research


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