Omics · study · 2026
Endothelial AGO1 Deficiency Reduces Breast Cancer Burden in Mice
Listed in NCBI GEO
Endothelial cells are crucial in cancer development and progression, in part through tumor angiogenesis and immune modulation.
Description
As a key component of RNA-induced silencing complex, Argonaute 1 (AGO1) protein has been shown to regulate tumor biology. However, its role in ECs within the tumor microenvironment remains undefined.
In this study, we investigated the effects of EC-conditional AGO1 knockout (EC-AGO1-KO) on tumor vascularization and immune regulation in a mouse xenograft breast cancer model. EC-AGO1-KO developed significantly reduced tumor burden when compared to their wild-type littermates. The tumor suppression was accompanied by lower tumor vascularization and stronger immune infiltration.
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Histological and single cell RNA sequencing analysis revealed that tumors in the EC-AGO1-KO mice exhibited increased CD8⁺ T cells and macrophages, reflecting a pro-immunostimulatory microenvironment. In vitro experiments show that EC-AGO1-knockdown (AGO1-KD) conditioned media suppresses breast cancer cell migration, attendant with the downregulation of C-X-C chemokine receptor type 4 (CXCR4) and upregulation of RUNX1 Partner Transcriptional Co-Repressor 1 (RUNX1T1).
These findings suggest that EC-AGO1 plays a crucial role in regulating tumor angiogenesis and immune cell infiltration, thereby influencing tumor progression. Targeting EC AGO1 may offer a novel therapeutic strategy for disrupting tumor vascularization while enhancing anti-tumor immunity.
Links
Get the data
- GEO FTP directory ftp.ncbi.nlm.nih.gov/geo/series/GSE310nnn/GSE310768 ↗
download · from NCBI GEO
Where it is published
- GEO accession page ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE310768 ↗
landing page · from NCBI GEO
Documentation and papers
- PRJNA1367051 ncbi.nlm.nih.gov/bioproject/PRJNA1367051 ↗
project · from NCBI GEO
- PubMed 42286210 pubmed.ncbi.nlm.nih.gov/42286210 ↗
publication · from NCBI GEO
Topics
- Stated by source
- Expression profiling by high throughput sequencing · Mus musculus
- From keywords
- Life Sciences
- Inferred from text
- Cancer 75% · RNA sequencing 75% · Sequencing 75%
Provenance · 1 source records, 10 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NCBI GEO | GSE310768 | 14 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[modality].local:modality:rna-seq | enrichment · NCBI GEO | keyword-concept-rules@1.0.0 | title+description (75%) |
| concepts[modality].local:modality:sequencing | enrichment · NCBI GEO | keyword-concept-rules@1.0.0 | title+description (75%) |
| concepts[organism].NCBITaxon:10090 | 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 |