Mus musculus
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA683665 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR13615300.fastq.gz | Fastqsanger.gz | |||
| SRR13615301.fastq.gz | Fastqsanger.gz | |||
| SRR13615302.fastq.gz | Fastqsanger.gz | |||
| SRR13615303.fastq.gz | Fastqsanger.gz | |||
| SRR13615304.fastq.gz | Fastqsanger.gz |
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Project description:Clinical benefit remains elusive for most patients with poorly inflamed carcinomas treated with immune checkpoint blockade. Alternative therapies able to convert the tumor microenvironment (TME) into a functionally inflamed immune hub may increase clinical benefit. Using comprehensive TME single-cell transcriptome, proteome, and immune cell analysis, we demonstrated that entinostat, a class I HDAC inhibitor, facilitates tumor deposition of the necrosis-targeted immunocytokine NHS-IL12 to promote potent anti-tumor efficacy against established MC38 and CT26 colon carcinoma models, with complete eradication of poorly immunogenic EMT6 breast tumors. Combination therapy reprogrammed the tumor innate and adaptive immunome to an inflamed landscape, where the concerted action of highly functional CD8+ T cells and activated neutrophils drove a dramatic macrophage M1-like polarization leading to complete tumor eradication. A biomarker signature of the mechanism involved in these studies is associated with patients’ overall survival in multiple tumor types. Collectively, these findings provide a rationale for combining NHS-IL12 with entinostat in the clinical setting.
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Project description:Tumor necrosis factor-related weak inducer of apoptosis, TWEAK, is a TNF superfamily member that mediates signaling through its receptor fibroblast growth factor inducible-14, Fn14. In tumor cell lines, TWEAK induces proliferation, survival and NF-kappaB signaling and gene expression that promote tumor growth and suppress antitumor immune responses. Anti-TWEAK antibody, RG7212, inhibits tumor growth in vivo with decreases in pathway activation markers and modulation of tumor, blood and spleen immune cell composition. Candidate response prediction markers, including Fn14, have been identified in mouse models. Phase I pharmacodynamic data from patients are consistent with preclinical results. TWEAK:Fn14 signaling is upregulated in human cancer and pathway activation induces tumor proliferation and survival signaling. Blockade with anti-TWEAK mAb, RG7212, inhibits tumor growth in multiple models in mice. TWEAK induces changes that suppress anti-tumor immune responses and RG7212 blocks these effects resulting in changes in tumor immune cell composition and decreases in cytokines that promote immunosuppression. Antitumor efficacy in mice was observed in a range of Fn14 expressing models with pathway activation and expressing either wild-type or mutant p53, BRAF or KRAS suggesting both a patient selection strategy and potential broad clinical applicability. Preclinical mechanism of action hypotheses are supported by Phase I clinical data, with decreases in proliferation markers and increased tumor T cell infiltration. U2OS cells untreated or treated with 1090-TW (TWEAK) for 15 minutes, 1 hour, 4 hours, 8 hours, or 24 hours. Five replicates for each condition were performed.
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