Omics · study · 2026
circTGFBR2(3-6) acts as an assembly platform for IGF2BP3 protein and TGFBR1 mRNA to enhance breast cancer cell plasticity
Listed in NCBI GEO
Transforming growth factor (TGF)-β signaling is a key driver to induce epithelial-to-mesenchymal transition (EMT), a process that enhances cancer cell plasticity and metastatic potential.
Description
However, the role of circular RNAs (circRNAs) in TGF-β signaling remains largely unexplored. Here, we identify circTGFBR2(3-6), a circRNA derived from TGF-β receptor 2 (TGFBR2) pre-mRNA, as a critical enhancer of TGF-β/SMAD signaling in breast cancer cells.
Depletion of circTGFBR2(3-6) inhibits TGF-β-induced EMT, migration, and in vivo extravasation of breast cancer cells. Mechanistically, circTGFBR2(3-6) acts as a scaffold that facilitates the interaction between the RNA-binding protein insulin-like growth factor 2 mRNA binding protein 3 (IGF2BP3) and TGF-β receptor 1 (TGFBR1) mRNA in an N6-methyladenosine (m6A)-dependent manner, and thereby stabilizes TGFBR1 and promotes its expression.
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Furthermore, IGF2BP3 knockdown reduces circTGFBR2(3-6)-mediated enhancement of TGF-β/SMAD signaling and TGF-β-induced EMT and migration. Our findings identify circTGFBR2(3-6) as a novel enforcer of TGF-β/SMAD signaling at the receptor level and highlight IGF2BP3 as a critical m6A reader that mediates circTGFBR2(3-6)-driven breast cancer cell plasticity.
Links
Get the data
- GEO FTP directory ftp.ncbi.nlm.nih.gov/geo/series/GSE303nnn/GSE303132 ↗
download · from NCBI GEO
Where it is published
- GEO accession page ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE303132 ↗
landing page · from NCBI GEO
Documentation and papers
- PRJNA1294214 ncbi.nlm.nih.gov/bioproject/PRJNA1294214 ↗
project · from NCBI GEO
- PubMed 41145815 pubmed.ncbi.nlm.nih.gov/41145815 ↗
publication · from NCBI GEO
Topics
- Stated by source
- Expression profiling by high throughput sequencing · Homo sapiens
- From keywords
- Life Sciences
- Inferred from text
- Cancer 75%
Provenance · 1 source records, 8 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NCBI GEO | GSE303132 | 12 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NCBI GEO | connector:ncbi_geo@1.0.0 | |
| concepts[disease].local:disease:cancer | enrichment · NCBI GEO | keyword-concept-rules@1.0.0 | title+description (75%) |
| concepts[field].local:field:life-sciences | mapping · NCBI GEO | connector:ncbi_geo@1.0.0 | |
| concepts[method].geo_series_type:expression-profiling-by-high-throughput-sequencing | source · NCBI GEO | connector:ncbi_geo@1.0.0 | /gdstype |
| concepts[organism].NCBITaxon:9606 | source · NCBI GEO | connector:ncbi_geo@1.0.0 | /taxon |
| description | source · NCBI GEO | connector:ncbi_geo@1.0.0 | /summary |
| publication_date | source · NCBI GEO | connector:ncbi_geo@1.0.0 | |
| title | source · NCBI GEO | connector:ncbi_geo@1.0.0 | /title |