circRNA basic information
circBase ID: hsa_circ_0001159
Name: hsa_circ_CHD6
Synonym: circCHD6
Host Gene: CHD6
Genomic location(hg19): chr20:40161688-40179999:-
Genomic location(hg38): chr20:41533049-41551360:-
Subcellular localization: cytoplasm
 
 
 
 
 
 
 
Disease basic information
MONDO ID:
0005575
MONDO name: colorectal cancer
Disease details: colorectal cancer
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:

CRC tissue; paired normal tissue; normal mucosa; tumor samples; liver metastases; lung samples

Cell lines:

SW480; HCT8; HT29; SW620; NCM460; HEK293T

In vivo animal model:

cell line-derived xenograft

circRNA-disease information
Expression pattern:
UP
Associated gene: circCHD6-216aa, DHX9, NCL, CD44
Associated microRNA: -
Biological function: circCHD6 promotes CRC cell migration and invasion in vitro and promotes CRC metastasis in vivo; its encoded protein circCHD6-216aa functions as a pro-metastatic driver.
Molecular mechanism: circCHD6 encodes circCHD6-216aa, which undergoes LLPS, promotes DHX9 phosphorylation to enhance circCHD6 biogenesis in a positive feedback loop, and interacts with NCL to stabilize NCL phase separation and enhance CD44 transcription.
Biological pathway or process:

migration (promotes); invasion (promotes); metastasis (promotes); other pathway/process (promotes)

Detected method:
Q
S
Validation methods:

Back-Splice Junction PCR / divergent primers PCR; RNase R Treatment; Sanger Sequencing; circRNA-seq; Actinomycin D / DRB Stability Assay; RT-qPCR; RNA-seq; IF (Immunofluorescence); IHC (Immunohistochemistry); Nuclear-Cytoplasmic Fractionation; Clinical Sample Validation; RIP (RNA Immunoprecipitation); Co-IP; ChIP / ChIP-seq; Luciferase Reporter Assay; Transfection; CCK8; Transwell Assay; In Vivo Animal Model; H&E Staining; Western Blot; Cohort Study; Survival Analysis; Bioinformatics Analysis

Clinical significance:

Higher circCHD6 expression in CRC patients is associated with poorer prognosis and may be associated with tumor progression.

Description:

circCHD6 is up-regulated in colorectal cancer and higher expression is associated with poorer patient prognosis. It encodes circCHD6-216aa, a pro-metastatic protein that forms nuclear LLPS condensates, enhances circCHD6 biogenesis through DHX9 phosphorylation, and stabilizes NCL phase separation to promote CD44 transcription and CRC metastasis.

Confidence score:

0.9013

Other information
Title:

Phase separation of circCHD6-encoded 216aa protein promotes colorectal cancer metastasis.

Journal: International journal of biological macromolecules
Published: 2025
PubMed ID: 41120080
Study type:

combined biological and clinical study

Data availability: Table S1; GSE172229; TCGA; PRJNA1196122; https://doi.org/10.1016/j.ijbiomac.2025.148422
Code availability: -