circRNA basic information
circBase ID: hsa_circ_0001681
Name: hsa_circ_RAPGEF5
Synonym: circ-RAPGEF5
Host Gene: RAPGEF5
Genomic location(hg19): chr7:22330793-22357656:-
Genomic location(hg38): chr7:22291174-22318037:-
Subcellular localization: cytoplasm
 
 
 
 
 
 
 
Disease basic information
MONDO ID:
0005575
MONDO name: colorectal cancer
Disease details: colorectal cancer
Disease DO ID:
5672, 9256
Disease MeSH ID:
-
Disease NCIt ID:
C4978
Disease ICD11 ID:
-
Disease OMIM ID:
114500
Species: Human
Species details: Homo sapiens
Tissue specimen:

CRC tissues; adjacent normal tissues; tumor tissues of nude mice

Cell lines:

FHC; HCT116; LoVo

In vivo animal model:

cell line-derived xenograft

circRNA-disease information
Expression pattern:
UP
Associated gene: polypeptide N-acetylgalactosaminyltransferase 3 (GALNT3), Ago2
Associated microRNA: miR-545-5p
Biological function: Promotes CRC cell proliferation, migration, invasion, and tumor growth; inhibits apoptosis.
Molecular mechanism: circ-RAPGEF5 functions as a miR-545-5p sponge and upregulates GALNT3 expression through the miR-545-5p/GALNT3 axis.
Biological pathway or process:

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

Detected method:
Q
Validation methods:

Back-Splice Junction PCR / divergent primers PCR; RNase R Treatment; RT-qPCR; FISH / smFISH; Nuclear-Cytoplasmic Fractionation; Clinical Sample Validation; RIP (RNA Immunoprecipitation); RNA Pull-Down; Luciferase Reporter Assay; Transfection; EdU Staining; Colony Formation Assay; Wound Healing Assay; Transwell Assay; Annexin V/PI Flow Cytometry; Western Blot; IHC (Immunohistochemistry); In Vivo Animal Model; Bioinformatics Analysis

Clinical significance:

circ-RAPGEF5 can be used as a biomarker for the diagnosis and prognosis of CRC and may provide potential therapeutic targets.

Description:

circ-RAPGEF5 is a human circRNA derived from RAPGEF5 that is upregulated in CRC tissues and cells. It promotes malignant CRC phenotypes by sponging miR-545-5p and relieving miR-545-5p-mediated repression of GALNT3, thereby enhancing proliferation, migration, invasion, and in vivo tumor growth while suppressing apoptosis. The study suggests circ-RAPGEF5 as a potential biomarker and therapeutic target in CRC.

Confidence score:

0.8635

Other information
Title:

Downregulation of circ-RAPGEF5 inhibits colorectal cancer progression by reducing the expression of polypeptide N-acetylgalactosaminyltransferase 3 (GALNT3).

Journal: Environmental toxicology
Published: 2024
PubMed ID: 38775215
Study type:

combined biological and clinical study

Data availability: -
Code availability: -