GEO DataSets

(Submitter supplied) We evaluated the profile of miRNA and snoRNA expression in 5 synchronous CRC and matched normal colorectal tissues using the Affymetrix GeneChip miRNA 1.0 array. A total of 24 miRNA differential expressed transcripts which represent 27 mature miRNAs, including an oncogenic miR-17-92a and oncosuppressive miR-143-145 cluster, and a global up-regulation of snoRNAs were revealed in cancer tissues compared with matched normal tissues. more...

Organism:

Homo sapiens; synthetic construct

Type:

Non-coding RNA profiling by array

Platform:

GPL8786

10 Samples

Download data: CEL

(Submitter supplied) We evaluated the profile of miRNA and snoRNA expression in 7 solitary CRC and matched normal colorectal tissues using the Affymetrix GeneChip miRNA 1.0 array. We found that global dysregulated miRNAs and snoRNAs between cancer tissue and normal mucosa in solitary CRC. Our findings firstly implicates that dysregulation of snoRNAs and miRNA may play important role in the cancinogenesis and present therapeutic targets for solitary CRC.

Organism:

Homo sapiens; synthetic construct

Type:

Non-coding RNA profiling by array

Platform:

GPL8786

14 Samples

Download data: CEL

(Submitter supplied) We evaluated the expression profile of miRNA and snoRNA of normal mucosa in five patients with synchronous CRCs and seven patients with solitary CRCs using the Affymetrix GeneChip miRNA 1.0 array. We found that global dysregulated miRNAs and snoRNAs in normal mucosa between solitary and synchronous CRC. Our findings represent the first comprehensive miRNA and snoRNA expression signatures in normal mucosa between solitary and synchronous CRC, which increases the understanding of the molecular basis of synchronous CRC, and firstly implicates the difference of genetic background in patients with solitary and synchronous CRC.

Organism:

synthetic construct; Homo sapiens

Type:

Non-coding RNA profiling by array

Platform:

GPL8786

12 Samples

Download data: CEL

(Submitter supplied) MiRNAs have differential expression between normal colon and cancer tissues, and could be targets for CRC therapies and be further developed as potential diagnostic and prognostic analytes. Keywords: classification

Organism:

Homo sapiens; Mus musculus; Rattus norvegicus

Type:

Non-coding RNA profiling by array

Platform:

GPL4411

66 Samples

Download data: TXT

(Submitter supplied) A multi-step approach combining microarray profile and bioinformatics analysis was adopted to identify the CRC specific miRNA-mRNA regulatory network. First, differentially expressed miRNAs and mRNAs were found out in CRC samples compared with normal epithelial tissues by miRNA and mRNA microarray respectively. Secondly the target mRNAs of dysregualted miRNA were identified by a combination of Pearson correlation coefficient between the expression level of miRNAs and mRNAs and online miRNA target predicting databases. more...

Organism:

Homo sapiens

Type:

Expression profiling by array; Non-coding RNA profiling by array

Platforms:

GPL4133 GPL14767

32 Samples

Download data: TXT

(Submitter supplied) To elucidate novel aspects of the molecular pathogenesis of colorectal cancer (CRC), we have created a new microRNA (miRNA) expression signature based on RNA-sequencing. Analysis of the signature showed that 84 miRNAs were upregulated and 70 were downregulated in CRC tissues. Interestingly, our signature indicated that both guide and passenger strands of some miRNAs were significantly dysregulated in CRC tissues. more...

Organism:

Homo sapiens

Type:

Non-coding RNA profiling by high throughput sequencing

Platform:

GPL16791

10 Samples

Download data: TXT

(Submitter supplied) To identify differentially expressed genes by anti cancer treatments (miRNA and siRNAs) in human cancer, several cell lines (breast cancer, colorectal cancer and renal cancer) were subjected to Agilent whole genome microarrays.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL20844

8 Samples

Download data: TXT

(Submitter supplied) Analysis of microRNA expression of tumoral and non-tumoral colonic tissues. The aim of this study was to analyze the global miRNA signatures in various groups of well-characterized CRCs based on the presence of microsatellite instability (MSI).

Organism:

Homo sapiens

Type:

Non-coding RNA profiling by array

Platform:

GPL8179

74 Samples

Download data: TXT

(Submitter supplied) Originally linked with development and differentiation, the role of microRNAs (miRNAs) in many important biological processes has emerged and dysregulation of miRNA expression has been connected with cancer pathogenesis. The association between abnormal expression levels of miRNAs and colon cancer has been mainly demonstrated in primary tumors; more recently, non-overlapping sets of oncomirs, tumour suppressor miRNAs and metastamirs have been associated with distinct stages of colo-rectal cancer (CRC) progression. more...

Organism:

synthetic construct; Homo sapiens

Type:

Expression profiling by array; Non-coding RNA profiling by array

Platforms:

GPL15236 GPL8786

158 Samples

Download data: CEL

(Submitter supplied) The goal of the study was to identify miRNAs differentially expressed in the invasive front of early and more advanced colorectal cancers, and to determine wheter miRNA profiles could differentiate between colorectal cancers with and without early metasttic progression. miRNA array data was used for analyses of associations beteen metastatic status and for associations to histopathological risk factors for metastatic progression.

Organism:

Homo sapiens; synthetic construct

Type:

Non-coding RNA profiling by array

Platform:

GPL14613

81 Samples

Download data: CEL

(Submitter supplied) We examined whether SATB1 functions as a global gene regulator in order to maintain the aggressive phenotype of the MDA-MB-231 cell line. We compared the gene expression profiles between control_shRNA-MDA-MB-231 cells, which express SATB1 at high levels, and SATB1_shRNA1-MDA-MB-231 in which the level of SATB1 was greatly downregulated by RNAi technology. This comparative studies were performed using two different platforms (Codelink and Affymetrix genechip) with two culture conditions either on plastic dish (2D) or on matrigel (3D) which allows cells to form a breast-like morphology only for non-aggressive cells. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platforms:

GPL3921 GPL4044

12 Samples

Download data: CEL, TXT

(Submitter supplied) Chromosomal instability (CIN) is the hallmark of colorectal adenoma to carcinoma progression in 85% of cases, with 20q gain as the most prominent aberration. Yet, the oncogenes at this chromosomal gain are still largely unknown. Here, we aimed to identify oncogenes at 20q involved in colorectal adenoma to carcinoma progression by measuring the effect of 20q gain on gene expression in this amplicon. more...

Organism:

Homo sapiens

Type:

Expression profiling by array; Genome variation profiling by genome tiling array

5 related Platforms

217 Samples

Download data

(Submitter supplied) To determine a preditcive marker of treatment resistance for rectal cancer, we have employed a microarray gene profiling analysis on pretreated rectal biopsies and compared with their response to therapy as defined by the American Joint Commission on Cancer (AJCC) and the American College of Pathologists.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL6102

33 Samples

Download data: IDAT

(Submitter supplied) miRNA expression analysis was performed on 14 cases of high grade gliomas and 4 controls obtained from age-matched epileptic patients. After this differentially miRNA analysis has been done among T53,H3F3A,normal and pediatric high grade glioma patient and try to identify the highly altered miRNA expression as well as sno expression pattern.

Organism:

synthetic construct; Homo sapiens

Type:

Non-coding RNA profiling by array

Platform:

GPL16384

18 Samples

Download data: CEL

(Submitter supplied) Using Laser Microdissection System (Leica Microsystems), RNA samples specific for stroma or epithelium were separately collected from thirteen colorectal cancer tissues and four normal tissues. Both microRNA microarray and gene expression microarray were performed in these samples.

Organism:

Homo sapiens

Type:

Expression profiling by array; Non-coding RNA profiling by array

Platforms:

GPL8227 GPL6480

59 Samples

Download data: TXT