circRNA basic information
circBase ID: -
Name: hsa_circ_CDR1AS
Synonym: -
Host Gene: -
Genomic location(hg19): -
Genomic location(hg38): -
Subcellular localization: not tested
 
 
 
 
 
 
 
Disease basic information
MONDO ID:
0005575
MONDO name: colorectal cancer
Disease details: colorectal cancer
Disease DO ID:
5672, 9256
Disease MeSH ID:
-
Disease NCIt ID:
C4978
Disease ICD11 ID:
-
Disease OMIM ID:
114500
Species: Human
Species details: Homo sapiens
Tissue specimen:

primary colorectal cancer tissues; matched normal mucosa; FFPE CRC tissues; adjacent normal mucosa (NM) tissues

Cell lines:

HCT116; HT29; HCT-116; HT-29

In vivo animal model:

cell line-derived xenograft

circRNA-disease information
Expression pattern:
UP
Associated gene: EGFR, RAF1, Erk, Ki67, PCNA
Associated microRNA: miR-7
Biological function: promotes aggressive oncogenic phenotype (proliferation, migration, invasion) and reduces apoptosis; neutralizes tumor-suppressive effects of miR-7; promotes tumor growth in xenografts
Molecular mechanism: Acts as a ceRNA/miR-7 sponge, relieving miR-7-mediated repression and activating EGFR/RAF1/MAPK signaling.
Biological pathway or process:

MAPK (promotes); proliferation (promotes); migration (promotes); invasion (promotes); apoptosis (inhibits); ceRNA regulation (promotes)

Detected method:
Q
Validation methods:

divergent primers PCR; RT-qPCR; Clinical Sample Validation; Cohort Study; Survival Analysis; Transfection; MTT; Colony Formation Assay; Transwell Assay; Annexin V/PI Flow Cytometry; In Vivo Animal Model; IHC (Immunohistochemistry); Western Blot; Bioinformatics Analysis

Clinical significance:

High ciRS-7 expression correlates with advanced stage/metastasis and predicts poor overall survival; independent risk factor for overall survival.

Description:

ciRS-7 is up-regulated in colorectal cancer and functions as an oncogenic circRNA. It sponges miR-7, relieving repression of EGFR and RAF1 and promoting EGFR/RAF1/MAPK signaling, which enhances malignant phenotypes and is associated with poor patient survival.

Confidence score:

0.7528

Other information
Title:

Circular RNA ciRS-7-A Promising Prognostic Biomarker and a Potential Therapeutic Target in Colorectal Cancer.

Journal: Clinical cancer research : an official journal of the American Association for Cancer Research
Published: 2017
PubMed ID: 28174233
Study type:

combined biological and clinical study

Data availability: -
Code availability: -