circRNA basic information
circBase ID: hsa_circ_0001681
Name: hsa_circ_RAPGEF5
Synonym: circRAPGEF5 / TC-hsa-RAPGEF5_0098
Host Gene: RAPGEF5
Genomic location(hg19): chr7:22330793-22357656:-
Genomic location(hg38): chr7:22291174-22318037:-
Subcellular localization: not tested
 
 
 
 
 
 
 
Disease basic information
MONDO ID:
0005575
MONDO name: colorectal cancer
Disease details: colorectal cancer / CRC
Disease DO ID:
5672, 9256
Disease MeSH ID:
-
Disease NCIt ID:
C4978
Disease ICD11 ID:
-
Disease OMIM ID:
114500
Species: Human
Species details: Homo sapiens
Tissue specimen:

tumor tissue; adjacent normal colon tissues; plasma

Cell lines:

HCT116; HT29; LS513; SW480; HEK293T; K562

In vivo animal model:

-

circRNA-disease information
Expression pattern:
UP
Associated gene: HLA-A*11:01
Associated microRNA: -
Biological function: elicits antigen-specific CD8+ T cell response and expansion; enables recognition and elimination of CRC cells/tumor organoids via circRNA-derived neoepitopes
Molecular mechanism: circRNA translation into novel ORFs/peptides (neoepitopes) that bind HLA-A*11:01 and activate CD8+ T cells
Biological pathway or process:

immune regulation (promotes)

Detected method:
Q
S
Validation methods:

RNA-seq; RT-qPCR; divergent primers PCR; Sanger Sequencing; Back-Splice Junction PCR / divergent primers PCR; Luciferase Reporter Assay; ELISA; IF; Flow Cytometry(Non-apoptosis/cycle); In Vivo Animal Model

Clinical significance:

potential candidate neoantigen source for cancer vaccines in CRC

Description:

circRAPGEF5 is upregulated in CRC and encodes HLA-A*11:01-restricted neoepitopes from circRNA-specific ORFs. These peptides stimulate antigen-specific CD8+ T-cell responses, supporting circRAPGEF5 as a vaccine neoantigen source.

Confidence score:

0.721

Other information
Title:

Circular RNA as a source of neoantigens for cancer vaccines.

Journal: Journal for immunotherapy of cancer
Published: 2024
PubMed ID: 38508656
Study type:

combined biological and clinical study

Data availability: -
Code availability: -