exRNAdisease

Entry Detail

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General Information

Database ID: exR0274696 RNA Name: hsa-miR-301b-3p RNA Type: miRNA Chromosome: chr22 Starnd: + Coordinate: Start Site(bp): 21653025 End Site(bp): 21653047 External Links: hsa-miR-301b-3p

Disease Information

Disease Name: Breast Cancer Disease Category: Cancers MeSH ID: D001943 Type: Neoplasms/Breast Neoplasms Alias: Breast Neoplasms//Breast Neoplasm//Neoplasm, Breast//Breast Tumors//Breast Tumor//Tumor, Breast//Tumors, Breast//Neoplasms, Breast//Breast Cancer//Cancer, Breast//Mammary Cancer//Cancer, Mammary//Cancers, Mammary//Mammary Cancers//Malignant Neoplasm of Breast//Breast Malignant Neoplasm//Breast Malignant Neoplasms//Malignant Tumor of Breast//Breast Malignant Tumor//Breast Malignant Tumors//Cancer of Breast//Cancer of the Breast//Mammary Carcinoma, Human//Carcinoma, Human Mammary//Carcinomas, Human Mammary//Human Mammary Carcinomas//Mammary Carcinomas, Human//Human Mammary Carcinoma//Mammary Neoplasms, Human//Human Mammary Neoplasm//Human Mammary Neoplasms//Neoplasm, Human Mammary//Neoplasms, Human Mammary//Mammary Neoplasm, Human//Breast Carcinoma//Breast Carcinomas//Carcinoma, Breast//Carcinomas, Breast

Expression Detail

GEO ID: GSE22981 Description: Circulating miRNAs as biomarkers and potential functional mediators of early stage breast cancer Experimental Design: Cancer vs Control Case Disease Type: Breast Cancer Case Disease SubType: Early satge breast cancer Case Sample: Breast Cancer Control Sample: Control Number of Case: 20 Number of Control: 20 Number of Samples: 40

Regulatory Relationship

mRNA targets: NA miRNA targets: NA circRNA targets: circRNA Symbol Chromosome Start Site(bp) End Site(bp) Strand hsa_circ_0000591 chr15 41961025 41962156 + hsa_circ_0001454 chr4 154524454 154533552 + hsa_circ_0000384 chr12 27867712 27877119 + hsa_circ_0001723 chr7 91924202 91948826 + hsa_circ_0000892 chr19 11941431 12014514 + hsa_circ_0001605 chr6 42903447 42905047 + hsa_circ_0000155 chr1 168007608 168014465 + hsa_circ_0001495 chr5 68470703 68471364 + hsa_circ_0000943 chr19 47421744 47440665 + hsa_circ_0000018 chr1 15860731 15863309 + lncRNA targets: lncRNA Symbol Chromosome Start Site(bp) End Site(bp) Strand AC011503.2 chr19 23927788 23929287 + AC021092.1 chr19 44103007 44113183 - AC135050.6 chr16 31122235 31124064 + AC234582.1 chr1 155195004 155205495 + AL031595.3 chr22 44139365 44153626 + AL049840.4 chr14 103694516 103695050 - AL158206.1 chr9 19453209 19455173 + AL158825.2 chr9 75009828 75016036 - AL603839.3 chr1 40493157 40508661 - CKMT2-AS1 chr5 81201341 81301565 - H19 chr11 1995176 2001470 - HAGLR chr2 176164051 176188958 - KCNQ1OT1 chr11 2608328 2699994 - LINC01089 chr12 121795267 121803906 - MIR17HG chr13 91347820 91354579 + NEAT1 chr11 65422774 65445540 + XIST chrX 73820649 73852723 - Display:

Experiment Detail

GEO ID: GSE22981 Sample Source: Blood Source Fraction: Plasma Platform: GPL8179 Method: Microarray Num of detected RNA Type: 1 Num of detected RNAs of this Type: 801 Sample treatment protocol: NA RNA Extract protocol: Total RNA, including miRNA from plasma, was isolated using the miRNeasy kit (Qiagen) with minor modifications. RNA library preparation protocol: Two hundred ng of total RNA from each sample were labeled and hybridized on Human v2 MicroRNA Expression BeadChips (Cat. no. MI-102-1024; Illumina).

Reference

PMID: 21060830 Title: A pilot study of circulating miRNAs as potential biomarkers of early stage breast cancer Author: Zhao H, Shen J, Medico L, Wang D, Ambrosone CB, Liu SBACKGROUND: To date, there are no highly sensitive and specific minimally invasive biomarkers for detection of breast cancer at an early stage. The occurrence of circulating microRNAs (miRNAs) in blood components (including serum and plasma) has been repeatedly observed in cancer patients as well as healthy controls. Because of the significance of miRNA in carcinogenesis, circulating miRNAs in blood may be unique biomarkers for early and minimally invasive diagnosis of human cancers. The objective of this pilot study was to discover a panel of circulating miRNAs as potential novel breast cancer biomarkers. METHODOLOGY/PRINCIPAL FINDINGS: Using microarray-based expression profiling followed by Real-Time quantitative Polymerase Cycle Reaction (RT-qPCR) validation, we compared the levels of circulating miRNAs in plasma samples from 20 women with early stage breast cancer (10 Caucasian American (CA) and 10 African American (AA)) and 20 matched healthy controls (10 CAs and 10 AAs). Using the significance level of p<0.05 constrained by at least two-fold expression change as selection criteria, we found that 31 miRNAs were differentially expressed in CA study subjects (17 up and 14 down) and 18 miRNAs were differentially expressed in AA study subjects (9 up and 9 down). Interestingly, only 2 differentially expressed miRNAs overlapped between CA and AA study subjects. Using receiver operational curve (ROC) analysis, we show that not only up-regulated but also down-regulated miRNAs can discriminate patients with breast cancer from healthy controls with reasonable sensitivity and specificity. To further explore the potential roles of these circulating miRNAs in breast carcinogenesis, we applied pathway-based bioinformatics exploratory analysis and predicted a number of significantly enriched pathways which are predicted to be regulated by these circulating miRNAs, most of which are involved in critical cell functions, cancer development and progression. CONCLUSIONS: Our observations from this pilot study suggest that the altered levels of circulating miRNAs might have great potential to serve as novel, noninvasive biomarkers for early detection of breast cancer. Journal: PLoS One. 2010 Oct 29;5(10):e13735. Description: The objective of this pilot study was to discover a panel of circulating miRNAs as potential novel breast cancer biomarkers.