circRNA basic information
circBase ID: hsa_circ_0000291
Name: hsa_circ_CD44
Synonym: circ_0000291
Host Gene: CD44
Genomic location(hg19): chr11:35163017-35163328:+
Genomic location(hg38): chr11:35141470-35141781:+
Subcellular localization: not tested
 
 
 
 
 
 
 
Disease basic information
MONDO ID:
0007256
MONDO name: hepatocellular carcinoma
Disease details: hepatocellular carcinoma
Disease DO ID:
684, 686
Disease MeSH ID:
D006528
Disease NCIt ID:
C3099
Disease ICD11 ID:
1294035808
Disease OMIM ID:
114550
Species: Human
Species details: Homo sapiens
Tissue specimen:

HCC tissue specimens; adjacent normal tissue specimens; xenograft tumor tissues

Cell lines:

Huh-7; LM3; LM6; MHCC97H; THLE-2

In vivo animal model:

cell line-derived xenograft

circRNA-disease information
Expression pattern:
UP
Associated gene: UBE2T, CD44, PCNA, Bax, Slug, SOX2
Associated microRNA: miR-1322
Biological function: Circ_0000291 promotes HCC cell proliferation, migration, invasion, stemness and tumor growth, and inhibits apoptosis.
Molecular mechanism: Circ_0000291 acts as a miR-1322 sponge to positively regulate UBE2T expression, thereby promoting HCC progression.
Biological pathway or process:

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

Detected method:
Q
Validation methods:

RNase R Treatment; RT-qPCR; Clinical Sample Validation; Cohort Study; Survival Analysis; Bioinformatics Analysis; Transfection; EdU Staining; Colony Formation Assay; Annexin V/PI Flow Cytometry; Transwell Assay; Western Blot; Luciferase Reporter Assay; RNA Pull-Down; In Vivo Animal Model; IHC (Immunohistochemistry)

Clinical significance:

High circ_0000291 expression is associated with lower survival rate and may be a novel prognostic marker and potential biomarker/target for HCC patients.

Description:

Circ_0000291 is up-regulated in HCC tissues and cell lines and high expression predicts poor survival. Functionally, circ_0000291 promotes proliferation, migration, invasion, stemness and in vivo tumor growth while suppressing apoptosis. Mechanistically, it acts as a sponge for miR-1322 to up-regulate UBE2T, forming a circ_0000291/miR-1322/UBE2T axis that supports HCC progression.

Confidence score:

0.8281

Other information
Title:

Circ_0000291 contributes to hepatocellular carcinoma tumorigenesis by binding to miR-1322 to up-regulate UBE2T.

Journal: Annals of hepatology
Published: 2022
PubMed ID: 35569812
Study type:

combined biological and clinical study

Data availability: GSE97332; GSE94508; GSE164803; GEPIA; circBank; circInteractome; TargetScan
Code availability: -