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CMTR1 promotes colorectal cancer cell growth and immune evasion by transcriptionally regulating STAT3

ABSTRACT: CMTR1 promotes colorectal cancer cell growth and immune evasion by transcriptionally regulating STAT3

PROVIDER: PRJNA908097 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR22515991_1.fastq.gz	Fastqsanger.gz
	SRR22515991_2.fastq.gz	Fastqsanger.gz
	SRR22515992_1.fastq.gz	Fastqsanger.gz
	SRR22515992_2.fastq.gz	Fastqsanger.gz

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Similar Datasets

CMTR1 promotes colorectal cancer cell growth and immune evasion by transcriptionally regulating STAT3

Project description:CMTR1, also called IFN-stimulated gene 95 kDa protein (ISG95), is elevated by viral infection in a variety of cells. However, the function of CMTR1 in colorectal cancer (CRC), especially its role in tumorigenesis and immune regulation, remains unclear. Here, we first identified CMTR1 as a novel oncogene in colorectal cancer. Based on The Cancer Genome Atlas (TCGA) database exploration and human tissue microarray (TMA) analysis, we found that CMTR1 expression was markedly higher in colorectal cancer tissues compared to that in adjacent normal tissues. High CMTR1 was correlated with poor prognosis of colorectal cancer patients. Knockdown (KD) of CMTR1 significantly suppressed cell proliferation and tumorigenicity both in vitro and in vivo, whereas overexpression of CMTR1 exhibited the opposite effects. KEGG analysis revealed that the JAK/STAT signaling pathway was differentially enriched in colorectal cancer cells with CMTR1 KD. Mechanistically, repression of CMTR1 influenced RNAPII recruitment to the TSS and repression of STAT3 expression and activation. Furthermore, PD1 blockade immunotherapy was prominently enhanced with CMTR1 KD by increased infiltration of CD8+ T cells into tumor microenvironment. Overall, it appears that CMTR1 plays a key role in regulating tumor cell proliferation and antitumor immunity.

2023-04-12 | GSE220040 | GEO

CMTR1 promotes colorectal cancer cell growth and immune evasion by transcriptionally regulating STAT3.

Project description:CMTR1, also called IFN-stimulated gene 95 kDa protein (ISG95), is elevated by viral infection in a variety of cells. However, the functions of CMTR1 in colorectal cancer (CRC), especially its roles in tumorigenesis and immune regulation, remain unclear. Here, we first identified CMTR1 as a novel oncogene in colorectal cancer. Based on The Cancer Genome Atlas (TCGA) database exploration and human tissue microarray (TMA) analysis, we found that CMTR1 expression was markedly higher in CRC tissues than in adjacent normal tissues. High CMTR1 expression was correlated with poor prognosis in CRC patients. Knockdown (KD) of CMTR1 significantly suppressed cell proliferation and tumorigenicity both in vitro and in vivo, whereas overexpression of CMTR1 resulted in the opposite effects. KEGG pathway analysis revealed differential enrichment in the JAK/STAT signaling pathway in colorectal cancer cells with CMTR1 KD. Mechanistically, suppression of CMTR1 expression inhibited RNAPII recruitment to the transcription start site (TSS) of STAT3 and suppressed STAT3 expression and activation. Furthermore, the efficacy of PD1 blockade immunotherapy was prominently enhanced in the presence of CMTR1 KD via increased infiltration of CD8 + T cells into the tumor microenvironment. Overall, it appears that CMTR1 plays a key role in regulating tumor cell proliferation and antitumor immunity.

| S-EPMC10079662 | biostudies-literature

CK2 phosphorylation of cap methyltransferase CMTR1 promotes RNAPII interaction

Project description:We investigated influence of CMTR1 phosphorylation by CK2 on RNA expression. In this experiment, we added wild-type and phosphorylation deficient mutant of CMTR1 and knocked out the endogenous CMTR1. We demonstrated that lack of phosphorylation of CMTR1 affects only small but specific group of genes.

2024-06-24 | GSE200103 | GEO

DHX15 regulates CMTR1-dependent gene expression and cell proliferation

Project description:We discovered that the RNA helicase DHX15 is a regulator of the methyltransferase CMTR1. To determine the biological consequences of this interaction we overexpressed CMTR1 or a mutated CMTR1 (2LA)that does not bind DHX15, in the human breast cancer cell line HCC1806. To assess the effects of the DHX15-CMTR1 interaction on translation, polysomes were separated on a sucrose gradient and sequencing libraries generated from the polysomal and input RNA. We found that the DHX15-CMTR1 interaction controls ribosome loading of a subset of mRNAs and impacts on cell proliferation.

2018-06-05 | GSE113573 | GEO

To investigate gene expression changes in neurons lacking cap methyltransferase 1 (CMTR1)

Project description:Transcriptomic profiles of control and CMTR1-knockdown neurons.

2020-09-25 | GSE145223 | GEO

CMTR1 is recruited to transcription start sites and has enhanced influence over ribosomal protein and histone genes [ChIP-seq]

Project description:We investigated the gene-specificity of mRNA cap methyltransferase CMTR1 and its impact in RNA expression. In this ChIP-seq experiment, we investigated the genome-wide chromatin binding profiles of CMTR1 in mouse embryonic stem cells. We demontrated that CMTR1 binds to the transcription start site (TSS) correlating with RNA polymerase II (RNAP II) levels, with predominant binding at histone genes and ribosomal protein (RP) genes. Moreover, the repression of CMTR1 expression resulted in a loss of RNAP II binding at the TSS.

2022-02-25 | GSE175628 | GEO

CMTR1 is recruited to transcription start sites and has enhanced influence over ribosomal protein and histone genes [RNA-seq]

Project description:We investigated the gene-specificity of mRNA cap methyltransferase CMTR1 and its impact in RNA expression. In this RNA-seq experiment, we used siRNA to knockdown the endogenous CMTR1 protein to investigate its role in mouse embryonic stem cells. We demonstrated that the repression of CMTR1 expression resulted in a loss of RNA expression, particularly of histone and ribosomal protein genes.

2022-02-25 | GSE175629 | GEO

CLIP of mRNA capping enzyme CMTR1 in Drosophila melanogaster

Project description:The mRNA cap structure consists of the m7G "cap0" linked to the 5'-most nucleotide of the initial mRNA. The first two nucleotides of mRNA can be 2'-O-Ribose modified to form cap1 or cap2 structures. Here, mRNA was sequenced after CLIP with tagged recombinant CMTR1 and compared to input RNA.

2021-12-18 | GSE181321 | GEO

HMGN5 escorts oncogenic STAT3 signaling by regulating chromatin landscape in tumorigenesis of breast cancer

Project description:Epigenetic alterations are widely linked with carcinogenesis, therefore becoming emerging therapeutic targets in the treatment of cancers, including breast cancer. HMGNs are nucleosome binding proteins, which regulate chromatin structures in a cell type- and disease-specific manner. However, the roles of HMGNs in the tumorigenesis of breast cancer are less known. In this study, we report that HMGNs are highly expressed in 3D-cultured breast cancer cells. HMGN5, a member of HMGNs, controls the proliferation, invasion and metastasis of breast cancer cells in vitro and in vivo. Clinically, HMGN5 is an unfavorable prognostic marker in patients. Mechanistically, HMGN5 is governed by active STAT3 transcriptionally and further escorts STAT3 to shape oncogenic chromatin landscape and transcriptional program. Lastly, we provide evidence that interference of HMGN5 by nanoparticle-packaged siRNA is potentially an effective approach in breast cancer treatment. Taken together, our findings reveal a novel feed-forward circuit between HMGN5 and STAT3 in promoting breast cancer tumorigenesis and suggest HMGN5 as a novel epigenetic therapeutic target in STAT3-hyperactive breast cancer.

2022-08-31 | GSE193507 | GEO

The mechanism of ATP6V0A1 regulating immune evasion in colorectal cancer

Project description:Our previous study showed the immunosuppressive ability of colorectal cancer cell-intrinsic ATP6V0A1. This project aimed to understand the mechanism of ATP6V0A1 regulating immune evasion in colorectal cancer (CRC). For this purpose, we used MS analysis to detect the changes in the protein expression profile induced by Atp6v0a1 knockdown in MC38 cells.

2023-07-22 | PXD044010 |

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