exRNAdisease

Entry Detail

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General Information

Database ID: exR0274510 RNA Name: hsa-miR-135b-5p RNA Type: miRNA Chromosome: chr1 Starnd: - Coordinate: Start Site(bp): 205448361 End Site(bp): 205448383 External Links: hsa-miR-135b-5p

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: Gene Symbol Chromosome Start Site(bp) End Site(bp) Strand AP3M1 chr10 74120255 74151063 - APMAP chr20 24962925 24992751 - ARPP19 chr15 52547045 52569883 - MTDH chr8 97644184 97730260 + NECTIN1 chr11 119623408 119729200 - PHTF2 chr7 77798792 77957503 + PRRC2B chr9 131373636 131500197 + RAB11FIP5 chr2 73073382 73156721 - RPS23 chr5 82273320 82278396 - STK38 chr6 36493892 36547479 - STK4 chr20 44966479 45080021 + TMEM181 chr6 158536436 158635428 + TOB2 chr22 41433494 41446801 - ZBED4 chr22 49853844 49890080 + IARS2 chr1 220094132 220148041 + miRNA targets: NA circRNA targets: circRNA Symbol Chromosome Start Site(bp) End Site(bp) Strand hsa_circ_0000540 chr14 55799534 55821940 + hsa_circ_0000471 chr13 33091993 33101669 - hsa_circ_0000527 chr14 24610097 24616430 - hsa_circ_0001168 chr20 47691321 47707559 + lncRNA targets: lncRNA Symbol Chromosome Start Site(bp) End Site(bp) Strand AC005034.3 chr2 75697583 75697996 + AC009032.1 chr16 69632141 69632571 + AL137127.1 chr1 19072110 19075511 - DANCR chr4 52712404 52720351 + GAS5 chr1 173858559 173868882 - MALAT1 chr11 65497688 65506516 + NEAT1 chr11 65422774 65445540 + OIP5-AS1 chr15 41283990 41309737 + SPINT1-AS1 chr15 40835808 40844387 - 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.