circRNA basic information
circBase ID: hsa_circ_0000520
Name: hsa_circ_RPPH1
Synonym: circ_0000520
Host Gene: RPPH1
Genomic location(hg19): chr14:20811436-20811559:-
Genomic location(hg38): chr14:20343277-20343400:-
Subcellular localization: not tested
 
 
 
 
 
 
 
Disease basic information
MONDO ID:
0005494
MONDO name: triple-negative breast carcinoma
Disease details: triple-negative breast cancer
Disease DO ID:
0060081
Disease MeSH ID:
D064726
Disease NCIt ID:
C71732
Disease ICD11 ID:
-
Disease OMIM ID:
-
Species: Human
Species details: Homo sapiens
Tissue specimen:

TNBC tissues; adjacent nontumor tissues

Cell lines:

MCF-10A; MDA-MB-231; BT549

In vivo animal model:

cell line-derived xenograft

circRNA-disease information
Expression pattern:
UP
Associated gene: ZFX
Associated microRNA: miR-1296
Biological function: promotes proliferation, migration and invasion; inhibits apoptosis; promotes xenograft tumor growth
Molecular mechanism: ceRNA mechanism: circ_0000520 sponges miR-1296 to increase ZFX expression
Biological pathway or process:

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

Detected method:
Q
Validation methods:

Microarray; Bioinformatics Analysis; RT-qPCR; Clinical Sample Validation; Cohort Study; Survival Analysis; Luciferase Reporter Assay; RIP (RNA Immunoprecipitation); RNA Pull-Down; Transfection; CCK8; Colony Formation Assay; Cell Cycle Assay; Annexin V/PI Flow Cytometry; Transwell Assay; Wound Healing Assay; In Vivo Animal Model; Western Blot; H&E Staining

Clinical significance:

High expression of circ_0000520 was associated with shorter survival time in TNBC patients

Description:

circ_0000520 is up-regulated in TNBC tissues and cell lines and promotes TNBC cell proliferation, migration, invasion and xenograft growth while inhibiting apoptosis. Mechanistically, it acts as a ceRNA that sponges miR-1296 to increase ZFX expression, and high circ_0000520 expression is associated with worse survival.

Confidence score:

0.8148

Other information
Title:

Circ_0000520 contributes to triple-negative breast cancer progression through mediating the miR-1296/ZFX axis.

Journal: Thoracic cancer
Published: 2021
PubMed ID: 34324278
Study type:

combined biological and clinical study

Data availability: GSE101124
Code availability: -