circRNA basic information
circBase ID: hsa_circ_0022812
Name: hsa_circ_POLA2
Synonym: circ_POLA2
Host Gene: POLA2
Genomic location(hg19): chr11:65055186-65063461:+
Genomic location(hg38): chr11:65287715-65295990:+
Subcellular localization: cytoplasm
 
 
 
 
 
 
 
Disease basic information
MONDO ID:
0006143
MONDO name: cervical squamous cell carcinoma
Disease details: cervical squamous cell carcinoma
Disease DO ID:
3744
Disease MeSH ID:
-
Disease NCIt ID:
C4028
Disease ICD11 ID:
1544785014
Disease OMIM ID:
-
Species: Human
Species details: Homo sapiens
Tissue specimen:

CESC tissues; adjacent normal control tissues

Cell lines:

Hela; SW756; CaSki; C-33a; SiHa; CerEpiC

In vivo animal model:

cell line-derived xenograft

circRNA-disease information
Expression pattern:
UP
Associated gene: GNB1
Associated microRNA: miR-326
Biological function: promotes proliferation, migration, invasion and metastasis of cervical cancer cells
Molecular mechanism: Acts as a ceRNA by sponging miR-326, thereby relieving repression of GNB1 and regulating ERK signaling.
Biological pathway or process:

ERK (promotes); proliferation (promotes); migration (promotes); invasion (promotes); metastasis (promotes); ceRNA regulation (promotes)

Detected method:
Q
H
Validation methods:

Back-Splice Junction PCR / divergent primers PCR; RNase R Treatment; RT-qPCR; FISH / smFISH; ISH (In Situ Hybridization); Clinical Sample Validation; Luciferase Reporter Assay; Bioinformatics Analysis; Transfection; CCK8; Colony Formation Assay; EdU Staining; Transwell Assay; Wound Healing Assay; Western Blot; IHC (Immunohistochemistry); In Vivo Animal Model; H&E Staining; Survival Analysis

Clinical significance:

High circ_POLA2 expression predicts worse overall survival (OS) and disease-free survival (DFS) in CESC patients.

Description:

circ_POLA2 is up-regulated in CESC and associated with poor prognosis. It promotes cervical cancer proliferation, migration/invasion and metastasis by acting as a ceRNA that sponges miR-326, leading to increased GNB1 and activation of ERK signaling.

Confidence score:

0.8427

Other information
Title:

CircRNA circ_POLA2 Promotes Cervical Squamous Cell Carcinoma Progression via Regulating miR-326/GNB1.

Journal: Frontiers in oncology
Published: 2020
PubMed ID: 32766125
Study type:

combined biological and clinical study

Data availability: The Cancer Genome Atlas (TCGA) https://www.cancer.gov/about-nci/organization/ccg/research/structural-genomics/tcga
Code availability: -