Project description:There are no reliable small molecules to accurately differentiate indolent thyroid tumors from more aggressive thyroid cancers. This study aimed to develop new micro RNA (miRNA) markers for diagnosis and recurrence risk stratification of papillary thyroid carcinoma (PTC). Thyroid tumor-specific miRNA profiling was investigated in 34 fresh frozen tissues, which included nontumor (n = 7), noninvasive follicular thyroid neoplasms with papillary-like nuclear features (NIFTP, n = 6) and PTC (n = 21), based on small RNA-seq technique. The PTC samples also consists of a number of pathological sub-cateories including classic (n = 11), tall cell (n = 7), and encapsulated follicular variant (EFV, n = 3) subtypes. By applying unsupervised hierarchical clustering with miRNAs, we found that thyroid tumor samples were well differentiated from normal thyroid tissues. When the histological data were compared among the tumor samples, patients with NIFTP or EFV were found to be differently clustered from those with classic or tall cell, indicating that micro-environment displayed by miRNAs well reflect pathological characteristics.
Project description:We tried to analyze the effect of FTO on papillary thyroid carcinoma. We constructed a FTO overexpression stable cell line of papillary thyroid carcinoma cells. We performed meRIP-seq sequencing analysis of the FTO overexpression stable transfer cell line to try to assess which genes were changed at the m6A level in papillary thyroid cancer cells by overexpressing FTO.
Project description:We tried to analyze the effect of FTO on papillary thyroid carcinoma. We constructed a FTO overexpression stable cell line of papillary thyroid carcinoma cells. We performed meRIP-seq sequencing analysis of the FTO overexpression stable transfer cell line to try to assess which genes were changed at the m6A level in papillary thyroid cancer cells by overexpressing FTO.
Project description:Papillary thyroid carcinoma (PTC) is the most common malignant phenotype of thyroid cancer, with a rapidly increasing number of new cases globally. Multifocality is a common phenomenon in patients with PTC. The tumor microenvironment (TME) plays a pivotal role in cancer progression in papillary thyroid carcinoma (PTC), yet the composition and phenotype of cells within TME in bilateral PTCs are poorly understood.
Project description:Although most thyroid tumours are benign, thyroid cancer represents the most common malignancy of the endocrine system, comprising mainly follicular and papillary thyroid carcinomas (FTC and PTC, respectively). Previous studies have shed some light on the molecular pathogenesis of thyroid cancer but there have not been any comprehensive mass spectrometry-based proteomic studies to reveal protein expression differences between thyroid tumours and the molecular alterations associated with tumour malignancy. We applied a label-free quantitative mass spectrometry analysis to compare normal thyroid tissue with the three most common tumours of the thyroid gland: follicular adenoma, follicular carcinoma and papillary carcinoma.
Project description:RNA-Sequencing analysis of 18 papillary thyroid carcinoma biopsies and of 4 healthy donors' thyroids. In this analysis we assessed differential gene expression and investigated the mutational landscape in this tumor type. Analysis of gene fusion was also performed, leading to the identification of a novel chimeric transcript, potential driver in tumor initiation. Total RNA isolated from 18 papillary thyroid carcinoma biopsies and 4 healthy donors' thyroids.
