Open Access

ING2, a tumor associated gene, enhances PAI‑1 and HSPA1A expression with HDAC1 and mSin3A through the PHD domain and C‑terminal

  • Authors:
    • Chiyo Ohkouchi
    • Kensuke Kumamoto
    • Motonobu Saito
    • Teruhide Ishigame
    • Shin‑Ichi Suzuki
    • Seiichi Takenoshita
    • Cutis C. Harris
  • View Affiliations

  • Published online on: September 20, 2017     https://doi.org/10.3892/mmr.2017.7553
  • Pages: 7367-7374
  • Copyright: © Ohkouchi et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Inhibitor of growth 2 (ING2) is involved in chromatin remodeling and it has previously been suggested that ING2 may regulate gene expression. The authors previously identified matrix metalloproteinase 13 (MMP13) as a target gene of ING2 in colorectal cancer. The aim of the present study was to identify novel genes regulated by ING2 and histone deacetylase 1 (HDAC1) and to clarify the biological significance of the ING2 structure. The present study generated the point mutant constructs of ING2 and deletion constructs consisting of partial ING2 to investigate the effect on gene expression and verify the interaction with HDAC1, mSin3A and sap30. A microarray was performed to find novel ING2/HDAC1 target genes using cell co‑overexpression of ING2 and HDAC1. Plasminogen activator inhibitor‑1 (PAI‑1) was upregulated with overexpression of ING1b and ING2. The mutation of the PHD domain at 218 significantly attenuated the MMP13 and PAI‑1 expression, whereas the mutation at 224 resulted in increased expression. Furthermore, the expression levels were slightly reduced by the mutation of the C‑terminal. The lack of the PHD domain and the C‑terminal in ING2 resulted in a decreased ability to induce gene expression. The C‑terminal with PHD domain, which lacked the N‑terminal, maintained the transactive function for regulating the target genes. In addition to MMP13 and PAI‑1, eight genes [heat shock protein family A member 1A (HSPA1A), MIR7‑3 host gene, chorionic somatomammotropin hormone 1, growth arrest and DNA damage inducible b, dehydrogenase/reductase 2, galectin 1, myosin light chain 1, and VGF nerve growth factor inducible] were demonstrated to be associated with ING2/HDAC1. The present study demonstrated that ING2/HDAC1 regulated PAI‑1 and HSPA1A expression and the PHD domain and the C‑terminal of ING2, which are binding sites of HDAC1 and mSin3A, are essential regions for the regulation of gene expression.
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November-2017
Volume 16 Issue 5

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Online ISSN:1791-3004

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Spandidos Publications style
Ohkouchi C, Kumamoto K, Saito M, Ishigame T, Suzuki SI, Takenoshita S and Harris CC: ING2, a tumor associated gene, enhances PAI‑1 and HSPA1A expression with HDAC1 and mSin3A through the PHD domain and C‑terminal. Mol Med Rep 16: 7367-7374, 2017.
APA
Ohkouchi, C., Kumamoto, K., Saito, M., Ishigame, T., Suzuki, S., Takenoshita, S., & Harris, C.C. (2017). ING2, a tumor associated gene, enhances PAI‑1 and HSPA1A expression with HDAC1 and mSin3A through the PHD domain and C‑terminal. Molecular Medicine Reports, 16, 7367-7374. https://doi.org/10.3892/mmr.2017.7553
MLA
Ohkouchi, C., Kumamoto, K., Saito, M., Ishigame, T., Suzuki, S., Takenoshita, S., Harris, C. C."ING2, a tumor associated gene, enhances PAI‑1 and HSPA1A expression with HDAC1 and mSin3A through the PHD domain and C‑terminal". Molecular Medicine Reports 16.5 (2017): 7367-7374.
Chicago
Ohkouchi, C., Kumamoto, K., Saito, M., Ishigame, T., Suzuki, S., Takenoshita, S., Harris, C. C."ING2, a tumor associated gene, enhances PAI‑1 and HSPA1A expression with HDAC1 and mSin3A through the PHD domain and C‑terminal". Molecular Medicine Reports 16, no. 5 (2017): 7367-7374. https://doi.org/10.3892/mmr.2017.7553