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Identification of candidate microRNAs in colorectal adenomas and adenocarcinomas

ABSTRACT: Identification of candidate microRNAs in colorectal adenomas and adenocarcinomas

PROVIDER: PRJNA217530 | ENA |

REPOSITORIES: ENA

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Identification of candidate microRNAs in colorectal adenomas and adenocarcinomas

Project description:We showed that some microRNAs could be characteristic of the progression from adenoma to adenocarcinoma in colorectal cancer. 48 colorectal biopsy samples (28 adenomas, 15 adenocarcinomas and 5 normal mucosae) were analyzed. We generated three comparisons: adenomas versus. normal mucosae, adenocarcinomas versus. normal mucosae, and adenocarcinomas versus. adenomas.

2013-08-30 | E-GEOD-50194 | biostudies-arrayexpress

Identification of candidate microRNAs in colorectal adenomas and adenocarcinomas

Project description:We showed that some microRNAs could be characteristic of the progression from adenoma to adenocarcinoma in colorectal cancer.

2013-08-30 | GSE50194 | GEO

Molecular characterization of colorectal adenomas reveals POFUT1 as a candidate driver of tumor progression

Project description:Colorectal adenomas are benign precursor lesions of colorectal cancer (CRC) that arise from normal epithelium1. The prevalence of adenomas in the large intestine is much higher than the incidence of cancer implying that the majority of adenomas will never progress to CRC4. In clinical practice, adenomas detected during colonoscopy are completely removed, and consequently the natural history of disease disrupted. Based on the prevalence of focal cancer in endoscopically removed adenomas, it is estimated that only 5% of adenomas will eventually progress to CRC. The aim of the present study was to characterize adenomas at low and high risk of progressing to cancer by extensive molecular profiling at DNA, RNA, and protein level, allowing to examine the biological processes in which they differ and to discover putative drivers of early colorectal tumor development.

2019-08-22 | PXD012254 | Pride

Identification of a gene expression signature in colorectal adenocarcinoma in comparison with colorectal adenoma

Project description:We showed that a lot of genes were deregulated in colorectal adenocarcinomas in comparison with colorectal adenomas. 37 colorectal adenoma and 9 colorectal adenocarcinoma samples were analyzed. We generated a comparison between adenocarcinomas and adenomas.

2013-08-27 | E-GEOD-50115 | biostudies-arrayexpress

Identification of a gene expression signature in colorectal adenocarcinoma in comparison with colorectal adenoma

Project description:We showed that a lot of genes were deregulated in colorectal adenocarcinomas in comparison with colorectal adenomas.

2013-08-27 | GSE50115 | GEO

TGFβ signaling directs serrated adenomas to the mesenchymal colorectal cancer subtype [adenomas]

Project description:Colorectal cancer can be divided into four consensus molecular subtypes, which might associate with distinct precursor lesions. The aim of this study was to determine the subtype affiliation of two types of colorectal adenomas: tubular adenomas (TAs) and sessile serrated adenomas (SSAs) and to determine the activity of TGFβ signaling and the role of this cytokine in subtype affiliation. Adenoma samples were collected in the Academic Medical Center (AMC), Amsterdam, The Netherlands. Tubular adenomas (TAs) were obtained from familial adenomatous polyposis (FAP) patients and sessile serrated adenomas (SSAs) were collected from serrated polyposis syndrome (SPS) patients.

2016-06-01 | GSE79460 | GEO

TGFÎ² signaling directs serrated adenomas to the mesenchymal colorectal cancer subtype [adenomas]

Project description:Colorectal cancer can be divided into four consensus molecular subtypes, which might associate with distinct precursor lesions. The aim of this study was to determine the subtype affiliation of two types of colorectal adenomas: tubular adenomas (TAs) and sessile serrated adenomas (SSAs) and to determine the activity of TGFÎ² signaling and the role of this cytokine in subtype affiliation. Adenoma samples were collected in the Academic Medical Center (AMC), Amsterdam, The Netherlands. Tubular adenomas (TAs) were obtained from familial adenomatous polyposis (FAP) patients and sessile serrated adenomas (SSAs) were collected from serrated polyposis syndrome (SPS) patients. Gene expression was analyzed for 7 sessile serrated adenomas (SSA) and 9 tubular adenomas (TA).

2016-06-01 | E-GEOD-79460 | biostudies-arrayexpress

Transcriptome profile of human colorectal adenomas.

Project description:Background: Colorectal cancers are believed to arise predominantly from adenomas. Although these precancerous lesions have been subjected to extensive clinical, pathological, and molecular analyses, little is currently known about the global gene expression changes accompanying their formation. Results: To characterize the molecular processes underlying the transformation of normal colonic epithelium, we compared the transcriptomes of 32 prospectively collected adenomas with those of normal mucosa from the same individuals. Important differences emerged not only between the expression profiles of normal and adenomatous tissues, but also between those of small and large adenomas. A key feature of the transformation process was the remodeling of the Wnt pathway reflected in patent over- and underexpression of 78 known components of this signaling cascade. Conclusions: Our transcriptomic profiles of normal colonic mucosa and colorectal adenomas shed new light on the early stages of colorectal tumorigenesis. Keywords: tissue comparison

2007-08-03 | GSE8671 | GEO

Genomic Sequencing of Colorectal Adenocarcinomas

Project description:Genomic Sequencing of Colorectal Adenocarcinomas

| PRJNA75981 | ENA

Proteomic profiling of colorectal adenomas

Project description:Colorectal adenomas are cancer precursor lesions of the large bowel. In these preinvasive lesions, a vast array of genomic and epigenomic changes have been detailed, but the consequence of these molecular alterations on the effectors of biological function (proteins) has not been comprehensively explored.

2014-04-03 | PXD000445 | Pride

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