Endocrine Abstracts

Nuclear corepressor 1 (NCoR) associates with nuclear receptors and other transcription factors leading to transcriptional repression. Genomic studies have shown the presence of inactivating mutations of the NCoR gene in human tumours and we have found that NCoR depletion with siRNA in hepatocarcinoma SK-hep1 cells enhances invasion, tumour growth and metastasis in nude mice, while expression of the thyroid hormone receptor β (TRβ) increases NCoR levels, repr...

Introduction: The global patterns of aberrant DNA methylation in thyroid cancer are not known. In this study, we have used DNA methylation arrays to determine, for the first time, the genome-wide promoter methylation status of different subtypes of thyroid tumors.Material and methods: We analyzed a cohort of 54 snap frozen thyroid samples (thirteen papillary tumors, six follicular, eleven anaplastic, twenty medullar and four normal tissue samples). Also ...