circRNA basic information
circBase ID: hsa_circ_0060467
Name: hsa_circ_MYBL2
Synonym: CircMYBL2
Host Gene: MYBL2
Genomic location(hg19): chr20:42338602-42345122:+
Genomic location(hg38): chr20:43709962-43716482:+
Subcellular localization: cytoplasm
 
 
 
 
 
 
 
Disease basic information
MONDO ID:
0002974
MONDO name: cervical cancer
Disease details: cervical cancer
Disease DO ID:
4362
Disease MeSH ID:
-
Disease NCIt ID:
C9311
Disease ICD11 ID:
1256072522
Disease OMIM ID:
603956
Species: Human
Species details: Homo sapiens
Tissue specimen:

CC tissues; adjacent normal tissues; PTX-sensitive CC tissues; PTX-resistant CC tissues; tumor tissues

Cell lines:

C-33A; CaSki; SiHa; HeLa; HcerEpic; HeLa/PTX

In vivo animal model:

cell line-derived xenograft

circRNA-disease information
Expression pattern:
UP
Associated gene: EGFR
Associated microRNA: miR-665
Biological function: CircMYBL2 promotes paclitaxel resistance, cervical cancer cell proliferation and colony formation, enhances tumor growth in vivo, and suppresses paclitaxel-induced apoptosis and cytotoxicity.
Molecular mechanism: CircMYBL2 functions as a ceRNA by sponging miR-665, thereby upregulating EGFR and promoting paclitaxel resistance and malignant behaviors in cervical cancer cells.
Biological pathway or process:

drug resistance (promotes); chemoresistance (promotes); proliferation (promotes); apoptosis (inhibits); ceRNA regulation (promotes); EGFR (promotes)

Detected method:
Q
Validation methods:

RNase R Treatment; RT-qPCR; Clinical Sample Validation; Nuclear-Cytoplasmic Fractionation; Luciferase Reporter Assay; Transfection; MTT; EdU Staining; Colony Formation Assay; Annexin V/PI Flow Cytometry; Western Blot; IHC (Immunohistochemistry); In Vivo Animal Model; Bioinformatics Analysis

Clinical significance:

CircMYBL2 may serve as a novel biomarker and therapeutic target for PTX-resistant cervical cancer.

Description:

CircMYBL2 is upregulated in cervical cancer, with higher expression in PTX-resistant tissues and cells. It promotes paclitaxel resistance, tumor growth, and malignant cellular behaviors by sponging miR-665 and thereby increasing EGFR expression, suggesting potential value as a biomarker and therapeutic target for PTX-resistant cervical cancer.

Confidence score:

0.7859

Other information
Title:

CircMYBL2 regulates the resistance of cervical cancer cells to paclitaxel via miR-665-dependent regulation of EGFR.

Journal: Drug development research
Published: 2021
PubMed ID: 34046939
Study type:

combined biological and clinical study

Data availability: -
Code availability: -