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YTHDF2-KIF26B-Wnt signaling forms a positive-feedback regulatory loop to maintain ISC stemness

ABSTRACT: YTHDF2-KIF26B-Wnt signaling forms a positive-feedback regulatory loop to maintain ISC stemness

PROVIDER: PRJNA1227416 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR32463875_1.fastq.gz	Fastqsanger.gz
	SRR32463875_2.fastq.gz	Fastqsanger.gz
	SRR32463876_1.fastq.gz	Fastqsanger.gz
	SRR32463876_2.fastq.gz	Fastqsanger.gz
	SRR32463877_1.fastq.gz	Fastqsanger.gz

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YTHDF2-KIF26B-Wnt signaling forms a positive-feedback regulatory loop to maintain ISC stemness

Project description:m6A modification plays a regulatory role in the stemness of small intestinal epithelial stem cells (ISCs), which is crucial for the renewal of intestinal epithelium and the maintenance of homeostasis. Although existing research has demonstrated that METTL3, as an m6A ‘writer’, is a crucial protein in the regulation of the stemness of ISCs, the mechanism by which the function of downstream ‘reader’ proteins is regulated has not been fully elucidated. In this study, we found that the knockout of Ythdf2 could significantly down-regulate the expression of the stemness marker gene Lgr5, suggesting that this ‘reader’ protein plays an important role in the regulation of the stemness of ISCs. Upon exploring the specific downstream mechanisms, we discovered that YTHDF2 promoted the Wnt signaling pathway by regulating the expression of KIF26B. This helps maintain the expression of Lgr5 in stem cells, thus preserving the stemness of these cells. Meanwhile, the expression of YTHDF2 itself is also regulated by the Wnt signaling pathway. Overall, YTHDF2 forms a positive-feedback regulatory loop centered around the Wnt signaling pathway. This loop ensures that ISCs remain in a stem-cell state, enabling the intestinal epithelium to function stably and properly.

2025-05-12 | GSE290302 | GEO

Microarray profiling of YTHDF2 deficient mouse oocytes

Project description:To study the role of the protein YTHDF2 during female gametogenesis, its gene was conditionally deleted in oocytes. Total RNA samples from YTHDF2 deficient GV and MII oocytes (and control oocytes) were subjected to array profiling.

2018-02-12 | E-MTAB-5576 | biostudies-arrayexpress

LAPTM4B-YAP loop feedback amplification enhances the stemness of hepatocellular carcinoma

Project description:LAPTM4B-YAP loop feedback amplification enhances the stemness of hepatocellular carcinoma

| PRJNA953402 | ENA

YTHDF2 regulates self non-coding RNA metabolism to control TLR3 activation in Inflammation

Project description:To elucidate the roles of YTHDF2 in the UV response in Human Keratinocyte (HaCaT) cells, the YTHDF2 interactome was analyzed through immunoprecipitation using a YTHDF2-specific antibody. Control IgG served as a negative control in this study. The cells were treated with UVB at 20 mJ/cm², and one hour post-treatment, alterations in the binding partners interacting with YTHDF2, along with their post-translational modifications, were analyzed using proteomics.

2025-09-10 | PXD059422 | Pride

Feedback loop LINC00511-YTHDF2-SOX2 regulatory network drives cholangiocarcinoma progression and stemness.

Project description:Cholangiocarcinoma (CCA) was identified as a malignant tumor with rising incidence and mortality rates, and the roles of long noncoding RNA (lncRNA) in CCA remained not entirely clear. In this study, LINC00511 had high expression in CCA, which was closely related to poor prognosis. Knockdown of LINC00511 significantly inhibited cell malignant biological behaviors. It also affected the stemness of CCA, evidenced by decreased SOX2 protein expression. Moreover, the study revealed the interaction of LINC00511, YTHDF2, and SOX2 in CCA. Specifically, LINC00511 facilitated the formation of a complex with YTHDF2 on SOX2 mRNA, which uniquely enhances the mRNA's stability through m6A methylation sites. This stabilization appears crucial for maintaining malignant behaviors in CCA cells. Additionally, LINC00511 modulated SOX2 expression via the PI3K/AKT signaling pathway. Meanwhile, SOX2 can also promote LINC00511 expression as an upstream transcription factor, thereby confirming a positive feedback loop formed by LINC00511, YTHDF2, and SOX2, which plays a significant role in the occurrence and development of CCA. Finally, the study successfully constructed two patient-derived xenograft models, revealing the vital role of LINC00511 in CCA development. In summary, this research provides a comprehensive understanding of the role of LINC00511 in the pathogenesis of CCA.

| S-EPMC11496568 | biostudies-literature

Microarray analysis of YTHDF2-deficient leukemic stem cells

Project description:YTHDF2 is overexpressed in a broad spectrum of human acute myeloid leukemias (AML). To study the role of YTHDF2 in leukemia, total RNA from Ythdf2CKO (n=4) and Ythdf2CTL (n=4) leukemic stem cells were used for Affymetrix global gene expression analysis.

2019-04-05 | E-MTAB-7782 | biostudies-arrayexpress

CRTC2 Forms Co-condensates with YTHDF2 that Enhance Translational Efficiency of m6A-Modified mRNAs to Drive Hepatocarcinogenesis and Lenvatinib Resistance (YTHDF2-RIPseq)

Project description:CRTC2 Forms Co-condensates with YTHDF2 that Enhance Translational Efficiency of m6A-Modified mRNAs to Drive Hepatocarcinogenesis and Lenvatinib Resistance (YTHDF2-RIPseq)

| PRJNA1101539 | ENA

KDM4C epigenetically regulates and forms a feed-forward loop with ALDH1A3 to maintain gastric cancer stemness

Project description:Gastric cancer (GC) stem cells (GCSCs) are characterized as high level of ALDH activity, however, the mechanisms of maintenance of high ALDH activity and stemness in GCSCs are largely unknown. Here, we report that KDM4C, a H3K9me2/3-demethylase, epigenetically regulates ALDH1A3 by histone demethylation and forms a feed-forward loop with ALDH1A3 to supports GS stemness. Ectopic expression of both KDM4C and ALDH1A3 promotes the properties of GCSCs, including spherogenecity, self-renewal, CD44 expression and ALDH activity; knockdown of anyone abolished the effect of each other. KDM4C directly binds to the promoter of ALDH1A3, leads to histone demethylation, thereby promoting ALDH1A3 transcription. Upregulated ALDH1A3 in turn transcriptionally upregulates KDM4C. Simultaneous inhibition of KDM4C and ALDH1A3 synergistically sensitizes GC sphere-derived cells to traditional chemotherapeutic drugs. The finding that upregulated ALDH1A3 promotes its own transcription via KDM4C-mediated epigenetic modification represents an important feed-forward mechanism for GCSCs to maintain stemness and promote tumourigenesis and our work thus suggests a novel therapeutic strategy for eradicating human GCSCs. To investigate the mechanisms underlying KDM4C promoting CG stemness, we identified the differentially expressed proteins (DEPs) between KDM4C-overexpressing and control AGS cells by iTRAQ-based quantitative proteomic analysis.

2022-02-16 | PXD023455 | Pride

MOF forms a positive feedback regulation with ERα to suppress endometrial cancer progression

Project description:MOF forms a positive feedback regulation with ERα to suppress endometrial cancer progression

| PRJNA445964 | ENA

YTHDF2-m6A-NF-kB axis controls anti-tumor immunity through regulating intratumoral Treg survival and function

Project description:N6-methyladenosine (m6A) in messenger RNA (mRNA) regulates immune cells in homeostasis and in response to infection and inflammation. The function of YTHDF2 in the tumor microenvironment (TME) in these contexts has not been explored. We discovered that loss of Ythdf2 in regulatory T (Treg) cells can reduce tumor growth in mice while maintaining peripheral homeostasis. In the tumor microenvironment, Ythdf2-deficient Treg cells have impaired function and poor survival. The elevated tumor necrosis factor (TNF) signaling in the TME grants the location-specific function of YTHDF2, which participates in the feedback regulation of NF-kB signaling by accelerating the degradation of m6A-modified, NF-kB negative regulators, Nlrc3, Nfkbie, and Traf3. TME-specific regulation of Treg by YTHDF2 points to YTHDF2 as a target for anti-cancer immunotherapy, where intratumoral Treg cells can be targeted to enhance antitumor immune response, while avoiding Treg cells in the periphery to minimize undesired inflammations.

2023-06-07 | GSE230418 | GEO

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