circRNA basic information
circBase ID: hsa_circ_0001666
Name: hsa_circ_FAM120B
Synonym: CircFAM120B
Host Gene: FAM120B
Genomic location(hg19): chr6:170626457-170639638:+
Genomic location(hg38): chr6:170317369-170330550:+
Subcellular localization: cytoplasm
 
 
 
 
 
 
 
Disease basic information
MONDO ID:
0008315
MONDO name: prostate cancer
Disease details: prostate cancer
Disease DO ID:
10283
Disease MeSH ID:
D011471
Disease NCIt ID:
C7378
Disease ICD11 ID:
-
Disease OMIM ID:
-
Species: Human
Species details: Homo sapiens
Tissue specimen:

prostate tissue samples; PCa tissues; matched healthy prostate tissues; xenograft tumor tissues

Cell lines:

DU145; PC-3; RWPE-1

In vivo animal model:

cell line-derived xenograft

circRNA-disease information
Expression pattern:
UP
Associated gene: FBXO17
Associated microRNA: miR-1182
Biological function: promotes PCa cell viability, proliferation, migration, invasion, EMT, tumor growth and metastasis; suppresses apoptosis
Molecular mechanism: circFAM120B acts as a ceRNA/miRNA sponge for miR-1182, relieves miR-1182-mediated inhibition of FBXO17, and activates AKT signaling to promote EMT and PCa progression
Biological pathway or process:

proliferation (promotes); migration (promotes); invasion (promotes); metastasis (promotes); EMT (promotes); apoptosis (inhibits); PI3K/AKT (promotes); ceRNA regulation (promotes)

Detected method:
Q
Validation methods:

Back-Splice Junction PCR / divergent primers PCR; RNase R Treatment; Actinomycin D / DRB Stability Assay; RT-qPCR; FISH / smFISH; Clinical Sample Validation; RNA Pull-Down; Luciferase Reporter Assay; Transfection; CCK8; EdU Staining; Colony Formation Assay; Annexin V/PI Flow Cytometry; Transwell Assay; Wound Healing Assay; In Vivo Animal Model; H&E Staining; IHC (Immunohistochemistry); Western Blot; Bioinformatics Analysis

Clinical significance:

circFAM120B expression was associated with clinicopathologic characteristics of PCa patients, including Gleason score; circFAM120B/miR-1182/FBXO17 axis represents a potential therapeutic target

Description:

circFAM120B is a human FAM120B-derived circular RNA that is significantly upregulated in prostate cancer tissues and cell lines and is mainly localized in the cytoplasm. In PCa, it promotes proliferation, invasion, migration, EMT, tumor growth and metastasis while suppressing apoptosis by sponging miR-1182, upregulating FBXO17, and activating AKT signaling. The study suggests the circFAM120B/miR-1182/FBXO17/AKT axis as a potential therapeutic target.

Confidence score:

0.8572

Other information
Title:

CircFAM120B promotes prostate cancer progression through miR-1182 inhibition and FBXO17-mediated AKT activation.

Journal: 3 Biotech
Published: 2026
PubMed ID: 41509520
Study type:

combined biological and clinical study

Data availability: The datasets generated during and/or analyzed during the current study are available from the corresponding author upon reasonable request; TCGA-PRAD; GEPIA; TargetScan; CircInteractome; supplementary material available at https://doi.org/10.1007/s13205-025-04677-9
Code availability: -