Excel · study · 2026
P3FI-90 activates innate immune responses in triple-negative breast cancer.
Listed in NCBI GEO
Immunotherapy has emerged as a promising therapeutic option for cancer management, but its applicability in patients with triple–negative breast cancer (TNBC) is limited by the low efficacy due to the immunosuppressive tumor microenvironment (TME).
Description
Here, we identify lysine demethylase 3B (KDM3B) as an essential mediator of immune evasion in TNBC. KDM3B expression is negatively correlated with cytotoxic T lymphocyte (CTL) infiltration.
Genetic or pharmacologic inhibition of KDM3B facilitates the recruitment and activation of CD8+ T cells, thereby suppressing tumor growth in TNBC mouse models. Mechanistically, KDM3B targets SHP1 by reducing H3K9me2 levels at its promoter. Suppression of KDM3B attenuates SHP1–mediated STING inactivation, which triggers robust type Ⅰ IFN responses.
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Strikingly, both KDM3B depletion and treatment with the KDM3B–selective inhibitor P3FI–90 significantly suppresses tumor progression and mitigates resistance to immune checkpoint blockade (ICB) therapy. Taken together, these findings establish KDM3B as a key regulator of immune escape, and targeting KDM3B represents a promising strategy to augment the efficacy of immunotherapy for TNBC.
Links
Get the data
- GEO FTP directory ftp.ncbi.nlm.nih.gov/geo/series/GSE330nnn/GSE330140 ↗
download · from NCBI GEO
Where it is published
- GEO accession page ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE330140 ↗
landing page · from NCBI GEO
Documentation and papers
- PRJNA1462819 ncbi.nlm.nih.gov/bioproject/PRJNA1462819 ↗
project · from NCBI GEO
- PubMed 42201640 pubmed.ncbi.nlm.nih.gov/42201640 ↗
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%
Provenance · 1 source records, 8 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NCBI GEO | GSE330140 | 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[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 |