CircRNAs and papillary thyroid cancer
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA996923 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR25373039_1.fastq.gz | Fastqsanger.gz | |||
| SRR25373039_2.fastq.gz | Fastqsanger.gz | |||
| SRR25373040_1.fastq.gz | Fastqsanger.gz | |||
| SRR25373040_2.fastq.gz | Fastqsanger.gz | |||
| SRR25373041_1.fastq.gz | Fastqsanger.gz |
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Project description:The dysregulation of circular RNAs (circRNAs) has been implicated in the development and progression of papillary thyroid cancer (PTC). In this study, we analyzed the dysregulated circRNA profile using PTC tissues and matched adjacent normal tissues by RNA-seq.
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Project description:Purpose: Next-generation sequencing (NGS) has revolutionized systems-based analysis of Papillary Thyroid Cancer tissue sample and adjacent normal tissue. The goals of this study are to analysis the different circRNAs expression between Cancer tissue sample and adjacent normal tissue. Quantitative reverse transcription polymerase chain reaction (qRT–PCR) methods and to evaluate protocols for optimal high-throughput data analysis. We performed circRNA-seq in Papillary Thyroid Cancer tissue sample and adjacent normal tissue. We found that through the deep sequencing of four pairs PTC and adjacent nontumor tissues, we identified 16569 circRNAs, 720 circRNAs were differentials expressed, among them, 301 upregulated and 419 downregulated.
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Project description:3 papillary thyroid cancer cell lines were compared, treated with Y15 to untreated. 1 million cells of each papillary thyroid cell line (TPC1, K1, BCPAP) were plated, treated 24 hours later with 10uM Y15, and collected 24 hours later by trypsinization.
2014-03-06 | E-GEOD-55603 | biostudies-arrayexpress
Project description:Thyroid gland is among the most sensitive organs to ionizing radiation. Whether low-dose radiation-induced papillary thyroid cancer (PTC) differs from sporadic PTC is yet unknown. We used microarrays to identify gene signature of radiation-induced papillary thyroid carcinomas
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Project description:We compared the expression profiles of papillary thyroid tumors from the Chernobyl Tissues Bank (CTB) with tumors from French patients with no history of exposure to radiations. Keywords: papillary thyroid cancer vs. patient-matched healthy adjacent thyroid thyroid papillary cancer vs. patient-matched adjacent nontumor thyroid tissues. -14 tumors from France -12 tumors from Ukraine
2007-07-11 | E-GEOD-3950 | biostudies-arrayexpress
Project description:To evaluate the expression profiles of circular RNAs (circRNAs) in papillary thyroid cancer (PTC) and to find new PTC biomarkers. Objective: The goal of this study was to characterize the expression profiles of circular RNAs (circRNAs) in papillary thyroid carcinoma (PTC), analyze their biological function, and discover new biomarkers for PTC. Methods: From June 2019 to July 2020, 68 patients admitted to Qilu Hospital and confirmed with PTC were included in this study. PTC and paired healthy tissue samples were collected and analyzed. The circRNA expression profiles of 4 pairs of samples were determined using high-throughput sequencing. Differentially expressed circRNAs were discovered to be associated with multiple related microRNAs (miRNAs) and messenger RNAs using bioinformatics analysis (mRNAs). Results: 89 upregulated and 14 downregulated circRNAs were identified in PTC tissues using high-throughput sequencing (fold change ≥ 2; p < 0.05). Among the upregulated circRNAs, we identified 14 significantly regulated circRNAs that play an important role in the pathogenesis of thyroid cancer using the network map of circRNA–miRNA–mRNA interactions. Following that, we validated the expression levels of seven candidate circRNAs (hsa_circ_0031584, hsa_circ_0082002, hsa_circ_0000660, hsa_circ_0067938, hsa_circ_0002483, hsa_circ_0003692, and hsa_circ_0006509) and discovered that among the circRNAs that we verified to be significantly differentially expressed Conclusions: The findings imply that dysregulated circRNAs may play an important role in the pathogenesis of PTC. We also discovered 14 circRNAs that were significantly upregulated and could be used to diagnose and treat PTC.
2022-02-28 | GSE197443 | GEO
Project description:Mice with thyroid-specific expression of oncogenic BRAF (Tg-Braf) develop papillary thyroid cancers (PTC) that are locally invasive and have well-defined foci of poorly differentiated thyroid carcinoma (PDTC). To investigate the PTC-PDTC progression, we performed a microarray analysis using RNA from paired samples of PDTC and PTC collected from the same animals by laser capture microdissection. Analysis of 8 paired samples revealed a profound deregulation of genes involved in cell adhesion and intracellular junctions, with changes consistent with an epithelial-mesenchymal transition (EMT). This was confirmed by IHC, as vimentin expression was increased and E-cadherin lost in PDTC compared to adjacent PTC. Moreover, PDTC stained positively for phospho-Smad2, suggesting a role for transforming growth factor-beta (TGFbeta) in mediating this process. Accordingly, TGFbeta induced EMT in primary cultures of thyroid cells from Tg-Braf mice, whereas wild-type thyroid cells retained their epithelial features. TGFbeta-induced Smad2 phosphorylation, transcriptional activity and induction of EMT required MAPK pathway activation in Tg-Braf thyrocytes. Hence, tumor initiation by oncogenic BRAF renders thyroid cells susceptible to TGFbeta-induced EMT, through a MAPK-dependent process. Comparing the transcription profiles of 8 pairs of murine poorly differentiated thyroid cancer and papillary thyroid cancer collected from the same animals by laser capture microdissection. Co-hybridizations were done in triplicate with a single dye flip.
2011-03-22 | E-GEOD-27668 | biostudies-arrayexpress
Project description:3 papillary thyroid cancer cell lines were compared, treated with Y15 to untreated.
2014-03-06 | GSE55603 | GEO