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P53-induced RNA-binding protein ZMAT3 is splicing regulator that inhibits the splicing of oncogenic CD44 variants in CRC [PAR-CLIP_ZMAT3]

ABSTRACT: p53-induced RNA-binding protein ZMAT3 is splicing regulator that inhibits the splicing of oncogenic CD44 variants in CRC [PAR-CLIP_ZMAT3]

PROVIDER: PRJNA633362 | ENA |

REPOSITORIES: ENA

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p53-induced RNA-binding protein ZMAT3 is splicing regulator that inhibits the splicing of oncogenic CD44 variants in CRC [PAR-CLIP_ZMAT3]

Project description:Purpose: p53 is a well-studied protein in which the activation of its main targets is not enough to explain its tumor suppressor effect. Aiming to search for direct p53 targets that mediate less studied processes within p53 pathway, like post-transcriptional regulation, we selected ZMAT3 as the RNA-binding protein most upregulated by p53 activation. Methods: We investigated ZMAT3 targets by using PAR-CLIP and RNA-seq in colorectal cancer cell line HCT116. Results: We found that ZMAT3 binds to ~5000 genes mainly in their introns. It also causes alternative splicing and CD44 was its mostly altered target. ZMAT3 knock-down increased CD44v2-v10 and CD44v3-v10, but decreased CD44s expression. Increased survival and clonogenicity was observed upon knock-down of ZMAT3, which was rescued upon concurrent knock-down of CD44v Conclusions: We propose that ZMAT3 regulates splicing of CD44 following activation by p53, which upregulates CD44s at the expense of CD44v isoforms and leads to a decrease tumorigenicity.

2020-12-18 | GSE150715 | GEO

p53-induced RNA-binding protein ZMAT3 is splicing regulator that inhibits the splicing of oncogenic CD44 variants in CRC [RNA-seq_ZMAT3]

Project description:Purpose: p53 is a well-studied protein in which the activation of its main targets is not enough to explain its tumor suppressor effect. Aiming to search for direct p53 targets that mediate less studied processes within p53 pathway, like post-transcriptional regulation, we selected ZMAT3 as the RNA-binding protein most upregulated by p53 activation. Methods: We investigated ZMAT3 targets by using PAR-CLIP and RNA-seq in colorectal cancer cell line HCT116. Results.txt: We found that ZMAT3 binds to ~5000 genes mainly in their introns. It also causes alternative splicing and CD44 was its mostly altered target. ZMAT3 knock-down increased CD44v2-v10 and CD44v3-v10, but decreased CD44s expression. Increased survival and clonogenicity was observed upon knock-down of ZMAT3, which was rescued upon concurrent knock-down of CD44v Conclusions: We propose that ZMAT3 regulates splicing of CD44 following activation by p53, which upregulates CD44s at the expense of CD44v isoforms and leads to a decrease tumorigenicity.

2020-12-18 | GSE150717 | GEO

p53-induced RNA-binding protein ZMAT3 is splicing regulator that inhibits the splicing of oncogenic CD44 variants in CRC [RNA-seq_UPF1]

Project description:Purpose: p53 is a well-studied protein in which the activation of its main targets is not enough to explain its tumor suppressor effect. Aiming to search for direct p53 targets that mediate less studied processes within p53 pathway, like post-transcriptional regulation, we selected ZMAT3 as the RNA-binding protein most upregulated by p53 activation. Methods: We investigated ZMAT3 targets by using PAR-CLIP and RNA-seq in colorectal cancer cell line HCT116. Results.txt: We found that ZMAT3 binds to ~5000 genes mainly in their introns. It also causes alternative splicing and CD44 was its mostly altered target. ZMAT3 knock-down increased CD44v2-v10 and CD44v3-v10, but decreased CD44s expression. Increased survival and clonogenicity was observed upon knock-down of ZMAT3, which was rescued upon concurrent knock-down of CD44v Conclusions: We propose that ZMAT3 regulates splicing of CD44 following activation by p53, which upregulates CD44s at the expense of CD44v isoforms and leads to a decrease tumorigenicity.

2020-12-18 | GSE150716 | GEO

p53-induced RNA-binding protein ZMAT3 is splicing regulator that inhibits the splicing of oncogenic CD44 variants in CRC

Project description:p53-induced RNA-binding protein ZMAT3 is splicing regulator that inhibits the splicing of oncogenic CD44 variants in CRC

| PRJNA633366 | ENA

p53-induced RNA-binding protein ZMAT3 is splicing regulator that inhibits the splicing of oncogenic CD44 variants in CRC [RNA-seq_UPF1]

Project description:p53-induced RNA-binding protein ZMAT3 is splicing regulator that inhibits the splicing of oncogenic CD44 variants in CRC [RNA-seq_UPF1]

| PRJNA633368 | ENA

p53-induced RNA-binding protein ZMAT3 is splicing regulator that inhibits the splicing of oncogenic CD44 variants in CRC [RNA-seq_ZMAT3]

Project description:p53-induced RNA-binding protein ZMAT3 is splicing regulator that inhibits the splicing of oncogenic CD44 variants in CRC [RNA-seq_ZMAT3]

| PRJNA633369 | ENA

Combined absence of Trp53 target genes Zmat3, Puma and p21 cause a high incidence of cancer in mice

Project description:Transcriptional activation of target genes is essential for TP53-mediated tumour suppression, though the roles of the diverse TP53-activated target genes in tumour suppression remains poorly understood. Knockdown of Zmat3, an RNA-binding zinc-finger protein involved in regulating alternative splicing, in haematopoietic cells by shRNA caused leukaemia only with the concomitant absence of the Puma and p21, the critical effectors of Trp53-mediated apoptosis and cell cycle arrest respectively. We were interested to further investigate the role of ZMAT3 in tumour suppression beyond the haematopoietic system. Therefore, we generated Zmat3 knockout and compound gene knockout mice, lacking Zmat3 and p21, Zmat3 and Puma or all three genes. Puma-/-p21-/-Zmat3-/- triple knockout mice developed tumours at a significantly higher frequency compared to wild-type, Puma-/-Zmat3-/- or p21-/-Zmat3-/-deficient mice. Interestingly, we observed that the triple knockout and Puma-/-Zmat3-/- double deficient animals succumbed to lymphoma, while p21-/-Zmat3-/- animals developed mainly solid cancers. This analysis suggests that in addition to ZMAT3 loss, additional TRP53-regulated processes must be disabled simultaneously for TRP53-mediated tumour suppression to fail. Our findings reveal that the absence of different TRP53 regulated tumour suppressive processes changes the tumour spectrum, indicating that different TRP53 tumour suppressive pathways are more critical in different tissues.

2023-11-28 | GSE248747 | GEO

Identifying Zmat3-bound RNAs

Project description:The goal of the study was to identify RNAs bound by Zmat3 using eCLIP.

2020-11-06 | GSE145555 | GEO

CD44 alternative splicing senses intragenic DNA methylation in tumors via direct and indirect mechanisms

Project description:Exon Level Expression Profiling of HeLa cells depleted of DNMT1 by 2 independent siRNAs In HeLa cells where depletion of DNMT1 was sufficient to cause reduced levels of DNA methylation inside the body of CD44 and reduced usage of CD44 variant exons, without affecting splicing factors regulating CD44.

2021-05-10 | GSE135277 | GEO

Next generation sequencing to identify PNISR regulating alternative splicing in CRC

Project description:We performed next generation sequencing between control CRC cells and CRC cells with PNISR knockdown to identify PNISR regulating alternative splicing

2022-08-19 | GSE204973 | GEO

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