circRNA basic information
circBase ID: hsa_circ_0002945
Name: hsa_circ_AXL
Synonym: circ_0002945
Host Gene: AXL
Genomic location(hg19): chr19:41736871-41737203:+
Genomic location(hg38): chr19:41230966-41231298:+
Subcellular localization: cytoplasm
 
 
 
 
 
 
 
Disease basic information
MONDO ID:
0004975
MONDO name: Alzheimer disease
Disease details: Alzheimer's disease
Disease DO ID:
10652
Disease MeSH ID:
D000544
Disease NCIt ID:
C2866
Disease ICD11 ID:
1611724421
Disease OMIM ID:
-
Species: Human
Species details: Homo sapiens
Tissue specimen:

serum

Cell lines:

SK-N-SH; HPNs; HEK293T

In vivo animal model:

-

circRNA-disease information
Expression pattern:
UP
Associated gene: TNFAIP1, AXL, AGO2, Bax, Bcl-2, cleaved caspase-3, GRP78, CHOP, cleaved caspase-12
Associated microRNA: miR-431-5p
Biological function: Promotes Abeta25-35-induced neuronal apoptosis and endoplasmic reticulum stress; inhibition of circ_0002945 increases cell viability and reduces apoptosis and endoplasmic reticulum stress in Abeta25-35-stimulated SK-N-SH cells and human primary neurons.
Molecular mechanism: circ_0002945 acts as a competing endogenous RNA that binds miR-431-5p and controls TNFAIP1 expression via miR-431-5p competition, thereby influencing Abeta25-35-induced apoptosis and endoplasmic reticulum stress.
Biological pathway or process:

apoptosis (promotes); other pathway/process (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; MTT; Annexin V/PI Flow Cytometry; Western Blot; Nuclear-Cytoplasmic Fractionation; RIP (RNA Immunoprecipitation); RNA Pull-Down; Luciferase Reporter Assay; Transfection; Clinical Sample Validation; Bioinformatics Analysis

Clinical significance:

circ_0002945 is upregulated in AD serum and may be a potential biomarker for the risk prediction and detection of AD.

Description:

circ_0002945 is upregulated in AD serum and Abeta25-35-stimulated SK-N-SH cells and human primary neurons. It promotes Abeta-induced neuronal apoptosis and endoplasmic reticulum stress through a ceRNA mechanism in which circ_0002945 binds miR-431-5p and thereby increases TNFAIP1 expression. Its serum upregulation suggests potential clinical relevance for AD detection or risk prediction.

Confidence score:

0.8391

Other information
Title:

Circ_0002945 functions as a competing endogenous RNA to promote Abeta25-35-induced endoplasmic reticulum stress and apoptosis in SK-N-SH cells and human primary neurons.

Journal: Brain research
Published: 2022
PubMed ID: 35278480
Study type:

combined biological and clinical study

Data availability: Supplementary data to this article can be found online at https://doi. org/10.1016/j.brainres.2022.147878.
Code availability: -