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Inhibition of the CtBP complex and FBXO11 enhances MHC class II expression and anti-cancer immune responses [Whole-genome CRISPRscreen]

ABSTRACT: Inhibition of the CtBP complex and FBXO11 enhances MHC class II expression and anti-cancer immune responses [Whole-genome CRISPRscreen]

PROVIDER: PRJNA784445 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR17063083.fastq.gz	Fastqsanger.gz
	SRR17063084.fastq.gz	Fastqsanger.gz
	SRR17063085.fastq.gz	Fastqsanger.gz
	SRR17063086.fastq.gz	Fastqsanger.gz
	SRR17063087.fastq.gz	Fastqsanger.gz

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Inhibition of the CtBP complex and FBXO11 enhances MHC class II expression and anti-cancer immune responses [CUT&TAG]

Project description:There is increasing recognition of the prognostic significance of tumor cell major histocompatibility complex (MHC) class II expression in anti-cancer immunity. Relapse of acute myeloid leukemia (AML) following allogeneic stem cell transplantation (alloSCT) has recently been linked to MHC class II silencing in leukemic blasts; however, the regulation of MHC class II expression remains incompletely understood. Utilizing unbiased CRISPR-Cas9 screens, we identify that the C-terminal binding protein (CtBP) complex transcriptionally represses MHC class II pathway genes, while the E3 ubiquitin ligase complex component FBXO11 mediates degradation of CIITA, the principal transcription factor regulating MHC class II expression. Targeting these repressive mechanisms selectively induces MHC class II upregulation across a range of AML cell lines. Functionally, MHC class II+ leukemic blasts stimulate antigen-dependent CD4+ T cell activation and potent anti-tumor immune responses, providing fundamental insights into the graft-versus-leukemia effect. These findings establish the rationale for therapeutic strategies aimed at restoring tumor-specific MHC class II expression to salvage AML relapse post-alloSCT and also potentially to enhance immunotherapy outcomes in non-myeloid malignancies.

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Inhibition of the CtBP complex and FBXO11 enhances MHC class II expression and anti-cancer immune responses [RNA-Seq]

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Inhibition of the CtBP complex and FBXO11 enhances MHC class II expression and anti-cancer immune responses [Epigenetic CRISPRscreen]

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Inhibition of the CtBP complex and FBXO11 enhances MHC class II expression and anti-cancer immune responses

Project description:Inhibition of the CtBP complex and FBXO11 enhances MHC class II expression and anti-cancer immune responses

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Inhibition of the CtBP complex and FBXO11 enhances MHC class II expression and anti-cancer immune responses [RNA-Seq]

Project description:Inhibition of the CtBP complex and FBXO11 enhances MHC class II expression and anti-cancer immune responses [RNA-Seq]

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Inhibition of the CtBP complex and FBXO11 enhances MHC class II expression and anti-cancer immune responses [CUT&TAG]

Project description:Inhibition of the CtBP complex and FBXO11 enhances MHC class II expression and anti-cancer immune responses [CUT&TAG]

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Project description:Inhibition of the CtBP complex and FBXO11 enhances MHC class II expression and anti-cancer immune responses [Epigenetic CRISPRscreen]

| PRJNA784447 | ENA