circRNA basic information
circBase ID: -
Name: hsa_circ_FLI1
Synonym: FECR2
Host Gene: FLI1
Genomic location(hg19): -
Genomic location(hg38): -
Subcellular localization: cytoplasm; exosome
 
 
 
 
 
 
 
Disease basic information
MONDO ID:
0008433
MONDO name: small cell lung carcinoma
Disease details: small cell lung cancer / SCLC
Disease DO ID:
5409, 5411
Disease MeSH ID:
D055752
Disease NCIt ID:
C4917
Disease ICD11 ID:
1800431439
Disease OMIM ID:
182280
Species: Human
Species details: Homo sapiens
Tissue specimen:

SCLC tumor samples; NSCLC tissues; serum exosomes; lung; liver

Cell lines:

NCI-H446; NCI-H1688; NCI-H460; NCI-H1299; A549; PC-9; Calu-1; HCC-827; NCI-H2170; SK-MES-1; HEK-293; HEK-293T

In vivo animal model:

cell line-derived xenograft

circRNA-disease information
Expression pattern:
UP
Associated gene: ROCK1
Associated microRNA: miR584-3p
Biological function: Promotes SCLC cell migration and tumor metastasis, with little effect on proliferation, cell cycle, apoptosis or colony formation.
Molecular mechanism: FECR2 acts through a miR584-3p/ROCK1 pathway, consistent with cytoplasmic sequestration of miR584-3p and regulation of ROCK1 activity.
Biological pathway or process:

migration (promotes); invasion (promotes); metastasis (promotes); ceRNA regulation (promotes); other pathway/process (promotes)

Detected method:
Q
H
Validation methods:

Back-Splice Junction PCR / divergent primers PCR; RNase R Treatment; Sanger Sequencing; RT-qPCR; FISH / smFISH; Nuclear-Cytoplasmic Fractionation; Clinical Sample Validation; Luciferase Reporter Assay; Transfection; MTT; Cell Cycle Assay; Annexin V/PI Flow Cytometry; Colony Formation Assay; Transwell Assay; Western Blot; In Vivo Animal Model; H&E Staining; Bioinformatics Analysis

Clinical significance:

FECR2 is highly expressed in SCLC tissues and its intensity is higher in patients with positive lymph node metastasis, indicating correlation with metastatic characteristics.

Description:

FECR2 is a human FLI1-derived exonic circRNA up-regulated in SCLC tissues and enriched in the cytoplasm. It promotes migration and metastasis of SCLC cells through the miR584-3p/ROCK1 pathway and is associated with lymph node metastasis in SCLC patients.

Confidence score:

0.8072

Other information
Title:

FLI1 Exonic Circular RNAs as a Novel Oncogenic Driver to Promote Tumor Metastasis in Small Cell Lung Cancer.

Journal: Clinical cancer research : an official journal of the American Association for Cancer Research
Published: 2019
PubMed ID: 30429198
Study type:

combined biological and clinical study

Data availability: -
Code availability: -