Effects of Histone Acetylation on Sodium Iodide Symporter Promoter and Expression of Thyroid-Specific Transcription Factors

Inhibitors of histone deacetylases (HDACs) activate the sodium iodide symporter (NIS) expression in thyroid tumor cells. In this study, mechanisms accounting for these effects were investigated. Various human thyroid tumor cell lines (ARO, BCPAP, FRO, TPC-1) were treated with the HDAC inhibitors Na...

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Veröffentlicht in:Endocrinology (Philadelphia) 2005-09, Vol.146 (9), p.3967-3974
Hauptverfasser: Puppin, Cinzia, D’Aurizio, Federica, D’Elia, Angela V, Cesaratto, Laura, Tell, Gianluca, Russo, Diego, Filetti, Sebastiano, Ferretti, Elisabetta, Tosi, Emanuele, Mattei, Tiziana, Pianta, Annalisa, Pellizzari, Lucia, Damante, Giuseppe
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container_issue 9
container_start_page 3967
container_title Endocrinology (Philadelphia)
container_volume 146
creator Puppin, Cinzia
D’Aurizio, Federica
D’Elia, Angela V
Cesaratto, Laura
Tell, Gianluca
Russo, Diego
Filetti, Sebastiano
Ferretti, Elisabetta
Tosi, Emanuele
Mattei, Tiziana
Pianta, Annalisa
Pellizzari, Lucia
Damante, Giuseppe
description Inhibitors of histone deacetylases (HDACs) activate the sodium iodide symporter (NIS) expression in thyroid tumor cells. In this study, mechanisms accounting for these effects were investigated. Various human thyroid tumor cell lines (ARO, BCPAP, FRO, TPC-1) were treated with the HDAC inhibitors Na butyrate (NaB) and tricostatin A (TSA), and the effects on the expression of NIS and several thyroid-specific transcription factors together with the activity of NIS promoter were evaluated. TSA and NaB increased NIS mRNA levels in all cell lines. Among thyroid-specific transcription factors, only expression of PAX8 in ARO cells was increased. Down-regulation of thyroid-specific transcription factor-1 expression was observed in BCPAP and TPC-1 cell lines. Thyroid-specific transcription factor-2 mRNA was reduced in FRO, BCPAP, and TPC-1 cells. Histone acetylation had no significant effects on HEX expression. Altogether, these data indicate that the increase of NIS expression is not mediated by modification of expression of thyroid-specific transcription factors. Accordingly, in transfection experiments performed in the HeLa cell line (which does not express thyroid-specific transcription factors), treatment with TSA and NaB increased NIS promoter activity. Stimulation of NIS promoter activity was also obtained by overexpressing histone acetylating proteins pCAF and p300 in HeLa cells. Conversely, overexpression of the HDAC 1 enzyme inhibited basal activity of the NIS promoter. Effects of TSA and NaB on NIS expression were also evaluated in nonthyroid cell lines MCF-7, Hep-G2, and SAOS-2. In all cell lines TSA and NaB greatly increased NIS mRNA levels. We concluded that control of NIS expression by inhibition of HDAC appears not to be mediated by cell-specific mechanisms, suggesting it as a potential strategy to induce radioiodine sensitivity in different human tumors.
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In this study, mechanisms accounting for these effects were investigated. Various human thyroid tumor cell lines (ARO, BCPAP, FRO, TPC-1) were treated with the HDAC inhibitors Na butyrate (NaB) and tricostatin A (TSA), and the effects on the expression of NIS and several thyroid-specific transcription factors together with the activity of NIS promoter were evaluated. TSA and NaB increased NIS mRNA levels in all cell lines. Among thyroid-specific transcription factors, only expression of PAX8 in ARO cells was increased. Down-regulation of thyroid-specific transcription factor-1 expression was observed in BCPAP and TPC-1 cell lines. Thyroid-specific transcription factor-2 mRNA was reduced in FRO, BCPAP, and TPC-1 cells. Histone acetylation had no significant effects on HEX expression. Altogether, these data indicate that the increase of NIS expression is not mediated by modification of expression of thyroid-specific transcription factors. Accordingly, in transfection experiments performed in the HeLa cell line (which does not express thyroid-specific transcription factors), treatment with TSA and NaB increased NIS promoter activity. Stimulation of NIS promoter activity was also obtained by overexpressing histone acetylating proteins pCAF and p300 in HeLa cells. Conversely, overexpression of the HDAC 1 enzyme inhibited basal activity of the NIS promoter. Effects of TSA and NaB on NIS expression were also evaluated in nonthyroid cell lines MCF-7, Hep-G2, and SAOS-2. In all cell lines TSA and NaB greatly increased NIS mRNA levels. 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In this study, mechanisms accounting for these effects were investigated. Various human thyroid tumor cell lines (ARO, BCPAP, FRO, TPC-1) were treated with the HDAC inhibitors Na butyrate (NaB) and tricostatin A (TSA), and the effects on the expression of NIS and several thyroid-specific transcription factors together with the activity of NIS promoter were evaluated. TSA and NaB increased NIS mRNA levels in all cell lines. Among thyroid-specific transcription factors, only expression of PAX8 in ARO cells was increased. Down-regulation of thyroid-specific transcription factor-1 expression was observed in BCPAP and TPC-1 cell lines. Thyroid-specific transcription factor-2 mRNA was reduced in FRO, BCPAP, and TPC-1 cells. Histone acetylation had no significant effects on HEX expression. Altogether, these data indicate that the increase of NIS expression is not mediated by modification of expression of thyroid-specific transcription factors. Accordingly, in transfection experiments performed in the HeLa cell line (which does not express thyroid-specific transcription factors), treatment with TSA and NaB increased NIS promoter activity. Stimulation of NIS promoter activity was also obtained by overexpressing histone acetylating proteins pCAF and p300 in HeLa cells. Conversely, overexpression of the HDAC 1 enzyme inhibited basal activity of the NIS promoter. Effects of TSA and NaB on NIS expression were also evaluated in nonthyroid cell lines MCF-7, Hep-G2, and SAOS-2. In all cell lines TSA and NaB greatly increased NIS mRNA levels. 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Psychology</topic><topic>Gene expression</topic><topic>Gene Expression - physiology</topic><topic>Gene Expression Regulation, Neoplastic</topic><topic>Gene regulation</topic><topic>Histone deacetylase</topic><topic>Histone Deacetylase Inhibitors</topic><topic>Histone Deacetylases - metabolism</topic><topic>Histones</topic><topic>Histones - metabolism</topic><topic>Humans</topic><topic>Inhibitors</topic><topic>Iodides</topic><topic>Iodine 131</topic><topic>Iodine radioisotopes</topic><topic>Liver Neoplasms</topic><topic>Osteosarcoma</topic><topic>Pax8 protein</topic><topic>Promoter Regions, Genetic - physiology</topic><topic>Sodium</topic><topic>Sodium iodide</topic><topic>Sodium iodide symporter</topic><topic>Symporters - genetics</topic><topic>Thyroid</topic><topic>Thyroid gland</topic><topic>Thyroid Neoplasms - genetics</topic><topic>Thyroid Neoplasms - metabolism</topic><topic>Transcription factors</topic><topic>Transcription Factors - metabolism</topic><topic>Transfection</topic><topic>Tumor cell lines</topic><topic>Tumor cells</topic><topic>Tumors</topic><topic>Vertebrates: endocrinology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Puppin, Cinzia</creatorcontrib><creatorcontrib>D’Aurizio, Federica</creatorcontrib><creatorcontrib>D’Elia, Angela V</creatorcontrib><creatorcontrib>Cesaratto, Laura</creatorcontrib><creatorcontrib>Tell, Gianluca</creatorcontrib><creatorcontrib>Russo, Diego</creatorcontrib><creatorcontrib>Filetti, Sebastiano</creatorcontrib><creatorcontrib>Ferretti, Elisabetta</creatorcontrib><creatorcontrib>Tosi, Emanuele</creatorcontrib><creatorcontrib>Mattei, Tiziana</creatorcontrib><creatorcontrib>Pianta, Annalisa</creatorcontrib><creatorcontrib>Pellizzari, Lucia</creatorcontrib><creatorcontrib>Damante, Giuseppe</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Animal Behavior Abstracts</collection><collection>Calcium &amp; Calcified Tissue Abstracts</collection><collection>Chemoreception Abstracts</collection><collection>Immunology Abstracts</collection><collection>Nucleic Acids Abstracts</collection><collection>Oncogenes and Growth Factors Abstracts</collection><collection>Toxicology Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>ProQuest Health &amp; Medical Complete (Alumni)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Endocrinology (Philadelphia)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Puppin, Cinzia</au><au>D’Aurizio, Federica</au><au>D’Elia, Angela V</au><au>Cesaratto, Laura</au><au>Tell, Gianluca</au><au>Russo, Diego</au><au>Filetti, Sebastiano</au><au>Ferretti, Elisabetta</au><au>Tosi, Emanuele</au><au>Mattei, Tiziana</au><au>Pianta, Annalisa</au><au>Pellizzari, Lucia</au><au>Damante, Giuseppe</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effects of Histone Acetylation on Sodium Iodide Symporter Promoter and Expression of Thyroid-Specific Transcription Factors</atitle><jtitle>Endocrinology (Philadelphia)</jtitle><addtitle>Endocrinology</addtitle><date>2005-09-01</date><risdate>2005</risdate><volume>146</volume><issue>9</issue><spage>3967</spage><epage>3974</epage><pages>3967-3974</pages><issn>0013-7227</issn><eissn>1945-7170</eissn><coden>ENDOAO</coden><abstract>Inhibitors of histone deacetylases (HDACs) activate the sodium iodide symporter (NIS) expression in thyroid tumor cells. In this study, mechanisms accounting for these effects were investigated. Various human thyroid tumor cell lines (ARO, BCPAP, FRO, TPC-1) were treated with the HDAC inhibitors Na butyrate (NaB) and tricostatin A (TSA), and the effects on the expression of NIS and several thyroid-specific transcription factors together with the activity of NIS promoter were evaluated. TSA and NaB increased NIS mRNA levels in all cell lines. Among thyroid-specific transcription factors, only expression of PAX8 in ARO cells was increased. Down-regulation of thyroid-specific transcription factor-1 expression was observed in BCPAP and TPC-1 cell lines. Thyroid-specific transcription factor-2 mRNA was reduced in FRO, BCPAP, and TPC-1 cells. Histone acetylation had no significant effects on HEX expression. Altogether, these data indicate that the increase of NIS expression is not mediated by modification of expression of thyroid-specific transcription factors. Accordingly, in transfection experiments performed in the HeLa cell line (which does not express thyroid-specific transcription factors), treatment with TSA and NaB increased NIS promoter activity. Stimulation of NIS promoter activity was also obtained by overexpressing histone acetylating proteins pCAF and p300 in HeLa cells. Conversely, overexpression of the HDAC 1 enzyme inhibited basal activity of the NIS promoter. Effects of TSA and NaB on NIS expression were also evaluated in nonthyroid cell lines MCF-7, Hep-G2, and SAOS-2. In all cell lines TSA and NaB greatly increased NIS mRNA levels. We concluded that control of NIS expression by inhibition of HDAC appears not to be mediated by cell-specific mechanisms, suggesting it as a potential strategy to induce radioiodine sensitivity in different human tumors.</abstract><cop>Bethesda, MD</cop><pub>Endocrine Society</pub><pmid>15919754</pmid><doi>10.1210/en.2005-0128</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record>
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subjects Acetylation
Biological and medical sciences
Breast Neoplasms
Carcinoma, Hepatocellular
Cell Line, Tumor
Enzyme Inhibitors - pharmacology
Fundamental and applied biological sciences. Psychology
Gene expression
Gene Expression - physiology
Gene Expression Regulation, Neoplastic
Gene regulation
Histone deacetylase
Histone Deacetylase Inhibitors
Histone Deacetylases - metabolism
Histones
Histones - metabolism
Humans
Inhibitors
Iodides
Iodine 131
Iodine radioisotopes
Liver Neoplasms
Osteosarcoma
Pax8 protein
Promoter Regions, Genetic - physiology
Sodium
Sodium iodide
Sodium iodide symporter
Symporters - genetics
Thyroid
Thyroid gland
Thyroid Neoplasms - genetics
Thyroid Neoplasms - metabolism
Transcription factors
Transcription Factors - metabolism
Transfection
Tumor cell lines
Tumor cells
Tumors
Vertebrates: endocrinology
title Effects of Histone Acetylation on Sodium Iodide Symporter Promoter and Expression of Thyroid-Specific Transcription Factors
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