circRNA basic information
circBase ID: hsa_circ_0041947
Name: hsa_circ_TP53
Synonym: hsa_circp53_0041947 / circp53
Host Gene: TP53
Genomic location(hg19): chr17:7573926-7578554:-
Genomic location(hg38): chr17:7670608-7675236:-
Subcellular localization: not tested
 
 
 
 
 
 
 
Disease basic information
MONDO ID:
0009693
MONDO name: plasma cell myeloma
Disease details: multiple myeloma / MM
Disease DO ID:
9538
Disease MeSH ID:
D009101
Disease NCIt ID:
C3242
Disease ICD11 ID:
1582389689; 526287100
Disease OMIM ID:
254500
Species: Human
Species details: Homo sapiens
Tissue specimen:

MM tissues; blood; CRC tissues

Cell lines:

MM1.S; H929; XG1; RPMI 8226; RKO; HCT116; A549; SGC-7901; HepG2; MCF-7; HEK293

In vivo animal model:

cell line-derived xenograft; patient-derived xenograft; other disease animal model

circRNA-disease information
Expression pattern:
DN
Associated gene: CypD, TRAP1, HSP90
Associated microRNA: -
Biological function: Suppresses tumor cell proliferation; induces mitochondrial apoptosis; increases sensitivity to bortezomib; inhibits tumor growth in vivo via EV delivery.
Molecular mechanism: Encodes peptide circp53-209aa that binds CypD, disrupts the CypD/TRAP1/HSP90 complex, activates CypD isomerase activity, triggers mPTP opening, leading to mitochondrial apoptosis; can be delivered by engineered EVs for tumor targeting.
Biological pathway or process:

mitochondrial function (other); apoptosis (promotes); p53 signaling (promotes); proliferation (inhibits)

Detected method:
Q
H
S
Validation methods:

Back-Splice Junction PCR / divergent primers PCR; RNase R Treatment; Sanger Sequencing; RT-qPCR; RNA-seq; ISH (In Situ Hybridization); Clinical Sample Validation; Cohort Study; Survival Analysis; Transfection; MTT; EdU Staining; TUNEL; CCK8; Western Blot; Co-IP; IF (Immunofluorescence); ELISA; In Vivo Animal Model; H&E Staining; Bioinformatics Analysis

Clinical significance:

Higher circp53 expression is associated with longer overall survival in MM; circp53 is decreased in MM tissues and blood and in CRC tissues versus normal controls.

Description:

TP53-derived circp53 (hsa_circp53_0041947) is down-regulated in MM (and reduced in CRC tissues). Increasing circp53 suppresses proliferation and induces mitochondrial apoptosis by encoding the peptide circp53-209aa, which binds CypD and disrupts the CypD/TRAP1/HSP90 complex to trigger mPTP opening. Engineered EVs delivering circp53 show tumor-targeted inhibitory effects in MM and CRC models, and higher circp53 expression in MM correlates with longer overall survival.

Confidence score:

0.8557

Other information
Title:

Extracellular vesicle-mediated delivery of circp53 suppresses the progression of multiple cancers by activating the CypD/TRAP/HSP90 pathway.

Journal: Experimental & molecular medicine
Published: 2025
PubMed ID: 40744997
Study type:

combined biological and clinical study

Data availability: GSE248072; PXD047003
Code availability: -