ArticleCellular oncology (Dordrecht, Netherlands)2011
In thyroid cancer cell lines expression of periostin gene is controlled by p73 and is not related to epigenetic marks of active transcription.
Article in Cellular oncology (Dordrecht, Netherlands), 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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8 citing papers in PubMed, 19 citations in OpenAlex.
- The Role of Exosomes in Epithelial-to-Mesenchymal Transition and Cell Functional Properties in Head and Neck Cancer.Cancers · 2023Review
- Golgi-apparatus genes related signature for predicting the progression-free interval of patients with papillary thyroid carcinoma.BMC medical genomics · 2023Article
- Review
- p53-Related Transcription Targets of TAp73 in Cancer Cells-Bona Fide or Distorted Reality?International journal of molecular sciences · 2020Review
- Clustering of patients with intrahepatic cholangiocarcinoma based on serum periostin may be predictive of prognosis.Oncology letters · 2017Article
- New Insights in Thyroid Cancer and p53 Family Proteins.International journal of molecular sciences · 2017Review
- A balancing act: orchestrating amino-truncated and full-length p73 variants as decisive factors in cancer progression.Oncogene · 2015Review
- Mechanisms, function and clinical applications of DNp73.Cell cycle (Georgetown, Tex.) · 2013Review
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7 authors at 3 institutions in 1 country.
Funding
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Abstract
backgroundPeriostin expression is a feature of the epithelial-mesenchymal transition, which occurs during cancer progression. Previous reports indicate that periostin expression is related to tumour aggressiveness.
methodsIn order to identify mechanisms regulating periostin expression in thyroid cancer, a panel of continuous thyroid cancer cell lines was investigated. Levels of posttranslational modifications of the H3 histone were investigated by chromatin immunoprecipitation. Moreover, treatment of cell lines with deacetylase inhibitors and transfection experiments were performed.
resultsOur insights show that levels of H3 histone acetylated at lysines 9 and 14 (which are epigenetic marks of active transcription) are not related to periostin mRNA levels. Moreover, treatment of WRO and FRO thyroid cancer cell lines with the deacetylase inhibitor tricostatin A (TSA) or suberoylanilide hydroxamic acid (SAHA) increases levels of acetylated H3 histone to periostin promoter however, unpredictably, reduces periostin mRNA levels. Interestingly, treatment of WRO cells with either TSA or SAHA increases levels of the H3 histone trimethylated at lysine 4, which is a different epigenetic mark of active transcription. Instead, data obtained by cell transfection indicate that ΔNp73, a member of p53 family selectively expressed in thyroid carcinomas, plays a role in activating periostin gene expression.
conclusionsLevels of epigenetic marks of active transcription do not contribute to regulation of periostin gene expression. The ΔNp73 effects suggest a novel molecular mechanism involved in thyroid cancer progression.
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