circRNA basic information
circBase ID: hsa_circ_0007203
Name: hsa_circ_DLG1
Synonym: circ_DLG1
Host Gene: DLG1
Genomic location(hg19): chr3:196807921-196846401:-
Genomic location(hg38): chr3:197081050-197119530:-
Subcellular localization: not tested
 
 
 
 
 
 
 
Disease basic information
MONDO ID:
0005580
MONDO name: esophageal squamous cell carcinoma
Disease details: esophageal squamous cell carcinoma
Disease DO ID:
3748
Disease MeSH ID:
C562729; D000077277
Disease NCIt ID:
C4024
Disease ICD11 ID:
1417891145
Disease OMIM ID:
-
Species: Human
Species details: Homo sapiens
Tissue specimen:

ESCC tumor tissues; adjacent normal tissues; blood plasma samples; excised tumor tissues

Cell lines:

EC9706; KYSE30; KYSE450; TE-8; HET-1A

In vivo animal model:

cell line-derived xenograft

circRNA-disease information
Expression pattern:
UP
Associated gene: MAP3K9, p38, ERK1/2, Ago2
Associated microRNA: miR-338-3p
Biological function: Circ_DLG1 promotes ESCC cell proliferation, cell cycle progression, viability, migration, invasion, metastasis, and in vivo tumor growth; circ_DLG1 knockdown inhibits these malignant phenotypes.
Molecular mechanism: Circ_DLG1 acts as a ceRNA/miRNA sponge for miR-338-3p, thereby upregulating MAP3K9 and activating the p38/ERK pathway in ESCC.
Biological pathway or process:

proliferation (promotes); cell cycle (promotes); migration (promotes); invasion (promotes); metastasis (promotes); MAPK (promotes); ERK (promotes); ceRNA regulation (promotes)

Detected method:
Q
Validation methods:

RNase R Treatment; RT-qPCR; Clinical Sample Validation; Transfection; Cell Cycle Assay; MTT; Transwell Assay; Western Blot; Luciferase Reporter Assay; RIP (RNA Immunoprecipitation); IHC (Immunohistochemistry); In Vivo Animal Model; Survival Analysis; Bioinformatics Analysis

Clinical significance:

High circ_DLG1 expression was linked to relatively poor overall survival of ESCC patients and higher expression was observed in stage III + IV tumor tissues compared with stage I + II.

Description:

Circ_DLG1 is up-regulated in ESCC tissues, plasma, and cell lines, and high expression is associated with poorer overall survival. Functionally, circ_DLG1 promotes ESCC proliferation, migration, invasion, metastasis, and xenograft tumor growth. Mechanistically, it sponges miR-338-3p to increase MAP3K9 expression and activate the p38/ERK pathway.

Confidence score:

0.8198

Other information
Title:

Circ_DLG1 facilitates cell proliferation and metastasis of esophageal squamous cell carcinoma via upregulating MAP3K9.

Journal: Esophagus : official journal of the Japan Esophageal Society
Published: 2025
PubMed ID: 40042790
Study type:

combined biological and clinical study

Data availability: The datasets used and analyzed during this study are available from the corresponding author on reasonable request; supplementary material available at https://doi.org/10.1007/s10388-025-01115-w
Code availability: -