circRNA basic information
circBase ID: hsa_circ_0006528
Name: hsa_circ_PRELID2
Synonym: circ 0006528
Host Gene: PRELID2
Genomic location(hg19): -
Genomic location(hg38): -
Subcellular localization: not tested
 
 
 
 
 
 
 
Disease basic information
MONDO ID:
0007254
MONDO name: breast cancer
Disease details: breast cancer / BC
Disease DO ID:
1612
Disease MeSH ID:
-
Disease NCIt ID:
C9335
Disease ICD11 ID:
1047754165
Disease OMIM ID:
-
Species: Human
Species details: Homo sapiens
Tissue specimen:

ADM-resistant human breast cancer tissues; ADM-sensitive group tissues; breast cancer patient samples

Cell lines:

MCF-7/ADM; MDA-MB-231/ADM; MCF-7; MDA-MB-231

In vivo animal model:

-

circRNA-disease information
Expression pattern:
UP
Associated gene: Raf1
Associated microRNA: miR-7-5p / hsa-miR-892a / hsa-miR-329-5p / hsa-miR-204-3p / hsa-miR-449c-5p
Biological function: promotes Adriamycin resistance and decreases drug sensitivity; knockdown increases sensitivity to ADM
Molecular mechanism: ceRNA mechanism acting as a miRNA sponge in the circ 0006528-miR-7-5p-Raf1 axis
Biological pathway or process:

drug resistance (promotes); MAPK (promotes); PI3K/AKT (promotes)

Detected method:
Q
M
Validation methods:

Microarray; RT-qPCR; Sanger Sequencing; Transfection; CCK8; Western Blot; Bioinformatics Analysis; Clinical Sample Validation

Clinical significance:

higher expression in ADM-resistant breast cancer tissues and cell lines; associated with chemotherapy resistance

Description:

This circRNA is upregulated in Adriamycin-resistant breast cancer tissues and cell lines and contributes to chemoresistance. It likely functions as a miRNA sponge in the circ 0006528 / miR-7-5p / Raf1 axis; silencing circ 0006528 increases ADM sensitivity and reduces Raf1 expression.

Confidence score:

0.6676

Other information
Title:

Screening circular RNA related to chemotherapeutic resistance in breast cancer.

Journal: Epigenomics
Published: 2017
PubMed ID: 28803498
Study type:

combined biological and clinical study

Data availability: -
Code availability: -