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Nakano M, Ohwada K, Shindo Y, Konno T, Kohno T, Kikuchi S, Tsujiwaki M, Ishii D, Nishida S, Kakuki T, Obata K, Miyata R, Kurose M, Kondoh A, Takano K, Kojima T. Inhibition of HDAC and Signal Transduction Pathways Induces Tight Junctions and Promotes Differentiation in p63-Positive Salivary Duct Adenocarcinoma. Cancers (Basel) 2022; 14:cancers14112584. [PMID: 35681564 PMCID: PMC9179926 DOI: 10.3390/cancers14112584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 04/26/2022] [Accepted: 05/11/2022] [Indexed: 11/16/2022] Open
Abstract
Simple Summary The p53 family p63 gene is essential for the proliferation and differentiation of various epithelial cells, and it is overexpressed in some salivary gland neoplasia. Histone deacetylases (HDACs) are thought to play a crucial role in carcinogenesis, and HDAC inhibitors downregulate p63 expression in cancers. p63 is not only a diagnostic marker of salivary gland neoplasia, but it also promotes the malignancy. Inhibition of HDAC and signal transduction pathways inhibited cell proliferation and migration, induced tight junctions, and promoted differentiation in p63-positive salivary duct adenocarcinoma (SDC). It is, therefore, useful in therapy for p63-positive SDC cells. Abstract Background: The p53 family p63 is essential for the proliferation and differentiation of various epithelial basal cells. It is overexpressed in several cancers, including salivary gland neoplasia. Histone deacetylases (HDACs) are thought to play a crucial role in carcinogenesis, and HDAC inhibitors downregulate p63 expression in cancers. Methods: In the present study, to investigate the roles and regulation of p63 in salivary duct adenocarcinoma (SDC), human SDC cell line A253 was transfected with siRNA-p63 or treated with the HDAC inhibitors trichostatin A (TSA) and quisinostat (JNJ-26481585). Results: In a DNA array, the knockdown of p63 markedly induced mRNAs of the tight junction (TJ) proteins cingulin (CGN) and zonula occuludin-3 (ZO-3). The knockdown of p63 resulted in the recruitment of the TJ proteins, the angulin-1/lipolysis-stimulated lipoprotein receptor (LSR), occludin (OCLN), CGN, and ZO-3 at the membranes, preventing cell proliferation, and leading to increased cell metabolism. Treatment with HDAC inhibitors downregulated the expression of p63, induced TJ structures, recruited the TJ proteins, increased the epithelial barrier function, and prevented cell proliferation and migration. Conclusions: p63 is not only a diagnostic marker of salivary gland neoplasia, but it also promotes the malignancy. Inhibition of HDAC and signal transduction pathways is, therefore, useful in therapy for p63-positive SDC cells.
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Affiliation(s)
- Masaya Nakano
- Department of Cell Science, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan; (M.N.); (K.O.); (Y.S.); (T.K.); (T.K.); (D.I.); (S.N.)
- Department of Otolaryngology, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan; (T.K.); (K.O.); (R.M.); (M.K.); (A.K.); (K.T.)
| | - Kizuku Ohwada
- Department of Cell Science, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan; (M.N.); (K.O.); (Y.S.); (T.K.); (T.K.); (D.I.); (S.N.)
- Department of Otolaryngology, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan; (T.K.); (K.O.); (R.M.); (M.K.); (A.K.); (K.T.)
| | - Yuma Shindo
- Department of Cell Science, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan; (M.N.); (K.O.); (Y.S.); (T.K.); (T.K.); (D.I.); (S.N.)
- Department of Thoracic Surgery, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan
| | - Takumi Konno
- Department of Cell Science, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan; (M.N.); (K.O.); (Y.S.); (T.K.); (T.K.); (D.I.); (S.N.)
| | - Takayuki Kohno
- Department of Cell Science, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan; (M.N.); (K.O.); (Y.S.); (T.K.); (T.K.); (D.I.); (S.N.)
| | - Shin Kikuchi
- Department of Anatomy, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan;
| | - Mitsuhiro Tsujiwaki
- Department of Pathology, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan;
| | - Daichi Ishii
- Department of Cell Science, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan; (M.N.); (K.O.); (Y.S.); (T.K.); (T.K.); (D.I.); (S.N.)
- Department of Thoracic Surgery, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan
| | - Soshi Nishida
- Department of Cell Science, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan; (M.N.); (K.O.); (Y.S.); (T.K.); (T.K.); (D.I.); (S.N.)
- Department of Otolaryngology, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan; (T.K.); (K.O.); (R.M.); (M.K.); (A.K.); (K.T.)
| | - Takuya Kakuki
- Department of Otolaryngology, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan; (T.K.); (K.O.); (R.M.); (M.K.); (A.K.); (K.T.)
| | - Kazufumi Obata
- Department of Otolaryngology, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan; (T.K.); (K.O.); (R.M.); (M.K.); (A.K.); (K.T.)
| | - Ryo Miyata
- Department of Otolaryngology, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan; (T.K.); (K.O.); (R.M.); (M.K.); (A.K.); (K.T.)
| | - Makoto Kurose
- Department of Otolaryngology, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan; (T.K.); (K.O.); (R.M.); (M.K.); (A.K.); (K.T.)
| | - Atsushi Kondoh
- Department of Otolaryngology, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan; (T.K.); (K.O.); (R.M.); (M.K.); (A.K.); (K.T.)
| | - Kenichi Takano
- Department of Otolaryngology, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan; (T.K.); (K.O.); (R.M.); (M.K.); (A.K.); (K.T.)
| | - Takashi Kojima
- Department of Cell Science, Research Institute for Frontier Medicine, Sapporo Medical University School of Medicine, Sapporo 060-8556, Japan; (M.N.); (K.O.); (Y.S.); (T.K.); (T.K.); (D.I.); (S.N.)
- Correspondence:
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