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Transcriptome analysis discloses dysregulated genes in normal appearing tumor-adjacent thyroid tissues from patients with papillary thyroid carcinoma

ABSTRACT: Transcriptome analysis discloses dysregulated genes in normal appearing tumor-adjacent thyroid tissues from patients with papillary thyroid carcinoma

PROVIDER: PRJNA695543 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR13572900_1.fastq.gz	Fastqsanger.gz
	SRR13572900_2.fastq.gz	Fastqsanger.gz
	SRR13572901_1.fastq.gz	Fastqsanger.gz
	SRR13572901_2.fastq.gz	Fastqsanger.gz
	SRR13572902_1.fastq.gz	Fastqsanger.gz

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Transcriptome analysis discloses dysregulated genes in normal appearing tumor-adjacent thyroid tissues from patients with papillary thyroid carcinoma

Project description:Papillary thyroid carcinoma (PTC) is the most common type of thyroid cancer. Histologically normal appearing tissue adjacent to the tumor (NAT) from PTC patients is commonly used as a control in thyroid cancer studies, but the molecular characteristics of NAT tissue are not well characterized. The aim of this study was to characterize the global gene expression profile of NAT and compare it with those of normal and tumor thyroid tissues. We performed RNA sequencing of three categories of thyroid tissue samples including NAT, normal thyroid (N), and PTC tumor (T). Transcriptome analysis shows that NAT presents a unique gene expression profile, which was not associated with sex and the presence of lymphocytic thyroiditis. Among the differentially expressed genes (DEGs) of NAT vs N, 247 coding genes and 6 noncoding genes have been reported as cancer genes, being involved in cell proliferation, apoptosis, and tumorigenesis. In addition, dysregulated expression of ribosomal and small RNAs was identified in NAT. IPA analyses revealed that “Cellular Response to Therapeutics, Cardiovascular Disease, Organismal Injury and Abnormalities, Cancer, and Cellular Movement” appeared as major dysregulated pathways in the NAT tissues. This study provides a comprehensive study of the PTC transcriptome, which provides improved insight into the complexity of gene expression changes during PTC tumorigenesis.

2021-01-29 | GSE165724 | GEO

Transcriptome analysis discloses dysregulated genes in normal appearing tumor-adjacent thyroid tissues from patients with papillary thyroid carcinoma.

Project description:Papillary thyroid carcinoma (PTC) is the most common type of thyroid cancer. The molecular characteristics of histologically normal appearing tissue adjacent to the tumor (NAT) from PTC patients are not well characterized. The aim of this study was to characterize the global gene expression profile of NAT and compare it with those of normal and tumor thyroid tissues. We performed total RNA sequencing with fresh frozen thyroid tissues from a cohort of three categories of samples including NAT, normal thyroid (N), and PTC tumor (T). Transcriptome analysis shows that NAT presents a unique gene expression profile, which was not associated with sex or the presence of lymphocytic thyroiditis. Among the differentially expressed genes (DEGs) of NAT vs N, 256 coding genes and 5 noncoding genes have been reported as cancer genes involved in cell proliferation, apoptosis, and/or tumorigenesis. Bioinformatics analysis with Ingenuity Pathway Analysis software revealed that "Cancer, Organismal Injury and Abnormalities, Cellular Response to Therapeutics, and Cellular Movement" were major dysregulated pathways in the NAT tissues. This study provides improved insight into the complexity of gene expression changes in the thyroid glands of patients with PTC.

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microRNA expression profiling of papillary thyroid carcinoma (PTC) and matched adjacent normal thyroid tissues

Project description:We profiled the microRNA expression of 5 pairs of PTC and normal thyroid tissues. All the tissues were immediately snap-frozen in liquid nitrogen and confirmed as papillary thyroid carcinoma by expert pathologists. Numerous deregulated mature microRNAs were identified comparing PTC tissues versus normal thyroid tissues. Details about the clinical-pathological characteristics of the samples are also provided.

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Papillary thyroid cancer proteomics

Project description:Label-free proteomics profiling of 37 paired tumor-normal tissues of papillary thyroid cancer

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Sporadic and Post-Chernobyl Papillary Thyroid Cancers

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

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Next Generation Sequencing of Papillary Thyroid Cancer tissue sample and adjacent normal tissue

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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Gene signature of the post-Chernobyl papillary thyroid cancer

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