circRNA basic information
circBase ID: hsa_circ_0005941
Name: hsa_circ_FTO
Synonym: circFTO
Host Gene: FTO
Genomic location(hg19): chr16:53907697-53922863:+
Genomic location(hg38): chr16:53873785-53888951:+
Subcellular localization: not tested
 
 
 
 
 
 
 
Disease basic information
MONDO ID:
0006774
MONDO name: habitual spontaneous abortion
Disease details: Spontaneous abortion / SA
Disease DO ID:
-
Disease MeSH ID:
D000026
Disease NCIt ID:
-
Disease ICD11 ID:
-
Disease OMIM ID:
-
Species: Human
Species details: Homo sapiens
Tissue specimen:

placental villi / placenta villus tissue

Cell lines:

HTR-8/Svneo; JEG-3; JAR; JEG-3; JEG3

In vivo animal model:

-

circRNA-disease information
Expression pattern:
UP
Associated gene: IGF2BP2, CCAR1 mRNA, ubiquitin-proteasome pathway
Associated microRNA: -
Biological function: inhibits trophoblast cell proliferation; inhibits trophoblast cell migration; inhibits trophoblast cell invasion
Molecular mechanism: circFTO directly binds and negatively regulates IGF2BP2, promotes IGF2BP2 ubiquitination and proteasomal degradation, and alters m6A modification and stability of CCAR1 mRNA via the m6A reader IGF2BP2
Biological pathway or process:

proliferation (inhibits); migration (inhibits); invasion (inhibits); m6A modification (other); mRNA stability (other); ubiquitination (promotes)

Detected method:
Q
S
Validation methods:

RNA-seq; RT-qPCR; Clinical Sample Validation; Transfection; CCK8; Transwell Assay; RIP (RNA Immunoprecipitation); Western Blot; Co-IP; Actinomycin D / DRB Stability Assay; MeRIP / MeRIP-seq; Bioinformatics Analysis; H&E Staining; IHC (Immunohistochemistry)

Clinical significance:

circFTO dysregulation may be implicated in the occurrence of SA, highlighting its potential as a biomarker for SA.

Description:

circFTO (hsa_circ_0005941) is up-regulated in placental villi from SA patients and suppresses trophoblast proliferation, migration, and invasion. Mechanistically, circFTO binds IGF2BP2 and promotes its ubiquitination/proteasomal degradation, thereby altering IGF2BP2-dependent m6A recognition and the stability/m6A modification of CCAR1 mRNA in trophoblasts.

Confidence score:

0.8314

Other information
Title:

circFTO binding with IGF2BP2 regulates trophoblast cells proliferation, migration, and invasion while mediating m6A modification of CCAR1 mRNA in spontaneous abortion.

Journal: BMC molecular and cell biology
Published: 2025
PubMed ID: 40604397
Study type:

combined biological and clinical study

Data availability: SRA: PRJNA1170415
Code availability: -