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SFRP2+ CAFs Hinder Abscopal Effect from Combined Radiotherapy and Immunotherapy by Forming a Hostile Perivascular Niche (scRNA-Seq)

ABSTRACT: SFRP2+ CAFs Hinder Abscopal Effect from Combined Radiotherapy and Immunotherapy by Forming a Hostile Perivascular Niche (scRNA-Seq)

PROVIDER: PRJNA1117507 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR29208235_1.fastq.gz	Fastqsanger.gz
	SRR29208235_2.fastq.gz	Fastqsanger.gz
	SRR29208236_1.fastq.gz	Fastqsanger.gz
	SRR29208236_2.fastq.gz	Fastqsanger.gz
	SRR29208237_1.fastq.gz	Fastqsanger.gz

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Similar Datasets

SFRP2+ CAFs Hinder Abscopal Effect from Combined Radiotherapy and Immunotherapy by Forming a Hostile Perivascular Niche

Project description:Despite accumulating cases of radiotherapy-induced abscopal effect in the lung cancer with the introduction of immune checkpoint inhibitors (ICIs), the occurrence of this effect remains infrequent and unpredictable to be a therapeutic goal. Here, we showed that the combination of radiotherapy (8Gy*3F) and ICI alleviated the tumor burden at the irradiated site whereas no discernible benefit was observed in the abscopal tumors. RNA-sequencing data showed that extracellular structure organization pathways were enriched in the abscopal tumors after combined therapy, with Sfrp2 being identified as a central hub. SFRP2 expression was observed in cancer-associated fibroblasts (CAFs) and was elevated in abscopal tumors after combined therapy. Blockade of SFRP2 followed by combined radiotherapy and ICI reinvigorated infiltration and cytotoxicity of CD8+ T cells, and elicited regression of abscopal tumors, which was abrogated by CD8α depletion. Mechanistically, in vitro experiments demonstrated that SFRP2+ CAFs induced apoptosis of CD8+ T cells. The spatial transcriptome analysis showed that SFRP2+ CAFs were located in proximity to the vessels and surrounded by abundant macrophages and limited CD8Tex, thereby creating an immunosuppressive perivascular niche, which was validated in paraffin sections of human lung cancer. Lineage-tracing assays showed SFRP2+ CAFs were derived from pericytes. IGF-1 released by irradiated tumors facilitated the transition of pericytes into fibroblasts and stimulated the expression of SFRP2. In summary, SFRP2+ CAFs hijack the abscopal effect from combined radiotherapy and immunotherapy via inducing apoptosis of CD8+ T cells and orchestrating a hostile perivascular niche in the lung cancer. Targeting SFRP2+ CAF may recondition the TME and promote the abscopal effect.

2024-04-01 | GSE261799 | GEO

SFRP2+ CAFs Hinder Abscopal Effect from Combined Radiotherapy and Immunotherapy by Forming a Hostile Perivascular Niche [B16]

2025-02-06 | GSE283462 | GEO

SFRP2+ CAFs Hinder Abscopal Effect from Combined Radiotherapy and Immunotherapy by Forming a Hostile Perivascular Niche [II]

2025-02-06 | GSE263386 | GEO

SFRP2+ CAFs Hinder Abscopal Effect from Combined Radiotherapy and Immunotherapy by Forming a Hostile Perivascular Niche (scRNA-Seq)

2025-02-06 | GSE268525 | GEO

SFRP2+ CAFs Hinder Abscopal Effect from Combined Radiotherapy and Immunotherapy by Forming a Hostile Perivascular Niche

Project description:SFRP2+ CAFs Hinder Abscopal Effect from Combined Radiotherapy and Immunotherapy by Forming a Hostile Perivascular Niche

| PRJNA1089112 | ENA

SFRP2+ CAFs Hinder Abscopal Effect from Combined Radiotherapy and Immunotherapy by Forming a Hostile Perivascular Niche [II]

Project description:SFRP2+ CAFs Hinder Abscopal Effect from Combined Radiotherapy and Immunotherapy by Forming a Hostile Perivascular Niche [II]

| PRJNA1097255 | ENA

SFRP2+ CAFs Hinder Abscopal Effect from Combined Radiotherapy and Immunotherapy by Forming a Hostile Perivascular Niche [B16]

Project description:SFRP2+ CAFs Hinder Abscopal Effect from Combined Radiotherapy and Immunotherapy by Forming a Hostile Perivascular Niche [B16]

| PRJNA1193994 | ENA

RNA-seq of human glioblastoma cell lines with overexpression of SOX2, SFRP2

Project description:Glioblastomas type A cell line (U-2987) was transfected with pLEX-blast-V5-YFP (control), and pLEX-blast-V5-SFRP2 (SFRP2), and type B cell culture (U-2982, U-343 MG) were transfected with pLEX-blast-V5-YFP (control), and pLEX-blast-V5-SOX2 (SOX2). Then RNA-seq was performed and used to analyse their regulation in the gene expression level.

2021-06-01 | E-MTAB-7591 | biostudies-arrayexpress

Gene expression changes induced by SFRP2 silencing in RB383 retinoblastoma cells

Project description:To gain insight into signaling downstream of SFRP2 in retinoblastoma, we used siRNA to silence SFRP2 in RB383 retinoblastoma cells and assessed the resulting gene expression changes at 24 hours and 48 hours after siRNA transfection.

2023-08-21 | GSE161990 | GEO

Expression data from gemcitabine treated pancreatic CAFs

Project description:Pancreatic ductal adenocarcinoma (PDAC) has a characteristically dense stroma comprised predominantly of cancer associated fibroblasts (CAFs). CAFs promote tumor growth, metastasis and treatment resistance. We aimed to investigate the molecular changes and functional consequences associated with chemotherapy treatment of PDAC CAFs. Chemoresistant immortalized CAFs (R-CAFs) were generated by continuous incubation in 100nM gemcitabine. Gene expression differences between treatment naÃ¯ve CAFs (N-CAFs) and R-CAFs were compared by array analysis. Immortalized human pancreatic CAFs were grown for 30 days in either control media or media containing 100nM gemcitabine. RNA was then isolated and hybidized on U133 Plus 2.0 Affymetrix arrays.

2016-03-09 | E-GEOD-78982 | biostudies-arrayexpress

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