circRNA basic information
circBase ID: -
Name: hsa_circ_SNORD115-4
Synonym: circMTDH.4 / circ-MTDH.4
Host Gene: SNORD115-4
Genomic location(hg19): -
Genomic location(hg38): -
Subcellular localization: not tested
 
 
 
 
 
 
 
Disease basic information
MONDO ID:
0005233
MONDO name: non-small cell lung carcinoma
Disease details: non-small cell lung cancer / NSCLC
Disease DO ID:
3908
Disease MeSH ID:
D002289
Disease NCIt ID:
C2926
Disease ICD11 ID:
-
Disease OMIM ID:
-
Species: Human
Species details: Homo sapiens
Tissue specimen:

NSCLC tissues; normal tissues; adjacent tissues; tumor tissues

Cell lines:

BEAS-2B; NCI-H1650; NCI-H358; HCC827; NCI-1299; A549

In vivo animal model:

-

circRNA-disease information
Expression pattern:
UP
Associated gene: AEG-1
Associated microRNA: miR-630
Biological function: circMTDH.4 promotes AEG-1 expression by sponging miR-630 and contributes to NSCLC cell chemoresistance and radioresistance; knockdown of circMTDH.4 increases sensitivity to chemotherapy and radiotherapy and reduces colony formation.
Molecular mechanism: ceRNA mechanism: circMTDH.4 sponges miR-630 to regulate AEG-1 expression, forming the circMTDH.4/miR-630/AEG-1 axis.
Biological pathway or process:

ceRNA regulation (promotes); proliferation (promotes); migration (promotes); invasion (promotes); drug resistance (promotes); chemoresistance (promotes); radioresistance (promotes)

Detected method:
Q
M
Validation methods:

Microarray; RT-qPCR; Clinical Sample Validation; Bioinformatics Analysis; Transfection; Luciferase Reporter Assay; RIP (RNA Immunoprecipitation); Western Blot; Colony Formation Assay

Clinical significance:

circMTDH.4 is highly expressed in NSCLC tumor tissues compared with normal tissues, suggesting potential involvement in NSCLC; no circMTDH.4-specific diagnostic or prognostic performance was reported.

Description:

circMTDH.4 is up-regulated in NSCLC tissues and cells. The study identifies a circMTDH.4/miR-630/AEG-1 ceRNA axis in which circMTDH.4 sponges miR-630 to increase AEG-1 expression, thereby contributing to proliferation-related effects and resistance to chemotherapy and radiotherapy in NSCLC cells.

Confidence score:

0.7165

Other information
Title:

circMTDH.4/miR-630/AEG-1 axis participates in the regulation of proliferation, migration, invasion, chemoresistance, and radioresistance of NSCLC.

Journal: Molecular carcinogenesis
Published: 2020
PubMed ID: 31749230
Study type:

combined biological and clinical study

Data availability: All data generated or analysed during this study are included in this published article.
Code availability: -