circRNA basic information
circBase ID: hsa_circ_0077755
Name: hsa_circ_GJA1
Synonym: -
Host Gene: GJA1
Genomic location(hg19): chr6:121767977-121770873:+
Genomic location(hg38): chr6:121446831-121449727:+
Subcellular localization: not tested
 
 
 
 
 
 
 
Disease basic information
MONDO ID:
0007254
MONDO name: breast cancer
Disease details: breast cancer
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:

breast tissue

Cell lines:

HMT-3522 S1 (S1); Cx43-KO-S1

In vivo animal model:

-

circRNA-disease information
Expression pattern:
DN
Associated gene: Cx43
Associated microRNA: miR-182, miR-203, miR-520g, miR-520h
Biological function: Potential biomarker axis for heightened-risk of breast cancer initiation; implicated in cancer-related functions including cell movement, migration and proliferation in silico.
Molecular mechanism: ceRNA/miRNA sponging with inverse dysregulation consistent with sponging of miR-182.
Biological pathway or process:

ceRNA regulation (other); migration (promotes); invasion (promotes); proliferation (promotes)

Detected method:
Q
M
Validation methods:

Microarray; RNase R Treatment; RT-qPCR; RNA-seq; Clinical Sample Validation; Bioinformatics Analysis; Survival Analysis

Clinical significance:

Cx43/hsa_circ_0077755/miR-182 is proposed as a biomarker predictor of heightened risk of breast cancer initiation; its dysregulation pattern associates with prognosis along initiation and progression.

Description:

hsa_circ_0077755 (GJA1/Cx43-derived) is significantly down-regulated upon Cx43 silencing in the S1 3D risk-progression model and forms the study’s only validated risk-assessment axis with miR-182, consistent with a miRNA-sponging relationship. Bioinformatics analyses link the axis to cancer-related functions such as migration, invasion and proliferation, and the authors propose it as a biomarker signature for heightened risk of breast cancer initiation and prognosis patterns across progression.

Confidence score:

0.6142

Other information
Title:

A risk progression breast epithelial 3D culture model reveals Cx43/hsa_circ_0077755/miR-182 as a biomarker axis for heightened risk of breast cancer initiation.

Journal: Scientific reports
Published: 2021
PubMed ID: 33514777
Study type:

combined biological and clinical study

Data availability: Geobrowser (to be assigned a number when published)
Code availability: -