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RALYL increases hepatocellular carcinoma stemness by sustaining the mRNA stability of TGF-β2

ABSTRACT: RALYL increases hepatocellular carcinoma stemness by sustaining the mRNA stability of TGF-β2

PROVIDER: PRJNA686934 | ENA |

REPOSITORIES: ENA

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RALYL increases hepatocellular carcinoma stemness by sustaining the mRNA stability of TGF-β2

Project description:To investigate the role of RALYL in HCC development and stemness, RALYL was overexpressed in PLC-8024 HCC cell line. Transcriptome sequencing was performed to investigate subsequent target and signaling pathway of RALYL.

2021-01-27 | GSE163601 | GEO

RALYL increases hepatocellular carcinoma stemness by sustaining the mRNA stability of TGF-β2.

Project description: Not available

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m6A Epitranscriptomic Microarray of primary mouse RPE cells treated with TGF-β2

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An Inducible TGF-β2-TGFβR Pathway Modulates the Sensitivity of HNSCC Cells to Tyrosine Kinase Inhibitors Targeting Dominant Receptor Tyrosine Kinases

Project description:The epidermal growth factor receptor (EGFR) is overexpressed in approximately 90% of head and neck squamous cell carcinomas (HNSCC), and molecularly targeted therapy against the EGFR with the monoclonal antibody cetuximab modestly increases overall survival in head and neck cancer patients. We hypothesize that co-signaling through additional pathways limits the efficacy of cetuximab and EGFR-specific tyrosine kinase inhibitors (TKIs) in the clinical treatment of HNSCC. Analysis of gene expression changes in HNSCC cell lines treated 4 days with TKIs targeting EGFR and/or fibroblast growth factor receptors (FGFRs) identified transforming growth factor beta 2 (TGF-β2) induction in the three cell lines tested. Measurement of TGF-β2 mRNA validated this observation and extended it to additional cell lines. Moreover, TGF-β2 mRNA was increased in primary patient HNSCC xenografts treated for 4 weeks with cetuximab, demonstrating in vivo relevance of these findings. Functional genomics analyses with shRNA libraries identified TGF-β2 and TGF-β receptors (TGFβRs) as synthetic lethal genes in the context of TKI treatment. Further, direct RNAi-mediated silencing of TGF-β2 inhibited cell growth, both alone and in combination with TKIs. Also, a pharmacological TGFβRI inhibitor similarly inhibited basal growth and enhanced TKI efficacy. In summary, the studies support a TGF-β2-TGFβR pathway as a TKI-inducible growth pathway in HNSCC that limits efficacy of EGFR-specific inhibitors.

2016-03-22 | GSE67500 | GEO

Aberrant overexpression of TGF-β2 induces epithelial-mesenchymal transition in adenomyosis with β-catenin activation.

Project description:Aberrant activation of TGF-β2 plays an important role in the pathogenesis of adenomyosis. We used microarrays to detail the machanism underlying aberrant activation of TGF-β2 in adenomyosis

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Genome-wide transcriptome profiling of human trabecular meshwork cells treated with TGF-β2.

Project description:we employed RNA-Seq to delineate the TGF-β2 induced changes in the transcriptome of normal primary human trabecular meshwork cells (HTM).

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Gene expression changes between naïve and IL-1β + TGF-β2 dual cytokine licensed equine mesenchymal stem cells

Project description:The study objectives were to 1) determine mesenchymal stem cell (MSC) surface expression of major histocompatibility complex (MHC) class I and transcriptome-wide gene expression changes following IL-1β + TGF-β2 dual licensing and 2) evaluate if IL-1β + TGF-β2 dual licensed MSCs had greater ability to positively modulate tenocyte function compared to naïve MSCs.

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Drosha/Dicer/miR-7/TGF-β2 axis Sustained Acidic Microenvironment-induced Lung Metastasis

Project description:Extracellular pH (pHe) is lower in many tumors than in the corresponding normal tissue. Acidic tumor microenvironment has been shown to facilitate epithelial mesenchymal transition (EMT) and tumor metastasis, while the mechanisms underlying tumor acidic microenvironment-induced tumor cell metastasis remain undefined. Here, we aimed to investigate the tumor metastasis and the EMT by acidic microenvironment and to explore their mechanisms and clinical significance in lung cancer. Results showed that acidic pHe remarkably enhanced invasion ability of lung cells accompanying with increased mesenchymal and decreased epithelial markers. Moreover, acidic pHe triggered the inhibition of microRNA-7 (miR-7) expression and activation of TGF-β2/SMAD signaling. Mechanistic studies showed that TGF-β2 is a direct potential target gene of miR-7, and acidity-induced metastasis could be abolished by treatment with a TGFβRI inhibitor, anti-TGF-β2 antibody and miR-7 mimic, respectively. The clinical samples further revealed that miR-7 was decreased in lung tissues and antagonistically correlated with TGF-β2 expression, associating with overall survival and metastasis. In conclusion, our study indicated that acidic pHe showed enhanced invasive potential, and enhanced potential to develop experimental metastases by a novel mechanism involving tumor acidic microenvironment-induced regulation of miR-7/TGF-β2/SMAD axis. Our findings suggest that the possibility that pHe of the primary tumor may be an important prognostic parameter for lung cancer patients merit clinical investigation. Moreover, miR-7 may serve as prognostic molecular marker and a novel therapeutic target for lung cancer.

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RNA-Seq Transcriptomic Analysis of Human Trabecular Meshwork Explants Exposed to TGF-β2: A Novel Approach Beyond Traditional Cell Culture Models

Project description:Glaucoma is a progressive optic neuropathy that can lead to irreversible blindness. Its main risk factor is elevated intraocular pressure (IOP). The trabecular meshwork (TM) acts as a filter between the anterior chamber of the eye and the aqueous humor collecting ducts, and dysfunction of this meshwork is responsible for the increased IOP in primary open-angle glaucoma (POAG). Considering that the culture conditions of human TM cells (HTMC) influence gene expression, we used human TM explants (HTMEx), which most closely mimic physiological conditions, to study the transcriptome of HTMC. The transforming growth factor-beta 2 (TGF-β2) signaling pathway has been implicated in the pathophysiology of POAG. To better characterize the role of TGF-β2 in this pathophysiology, we used bulk RNA sequencing and immunohistological analyses to establish gene signatures of TGF-β2-exposed HTMEx and correlate them with morphological alterations. We identified differentially upregulated genes primarily involved in ECM regulation, as well as profibrotic TGF-β signaling pathways, confirmed using confocal microscopy to highlight changes in trabecular architecture, TGFβ2-induced F-actin rearrangements, and extracellular matrix (ECM) deposition. Enrichment analysis also revealed modulations of gene expression related to cytoskeletal organization, as well as activation of the bone morphogenic protein (BMP) and Wnt signaling pathways in response to TGF-β2.

2023-07-03 | GSE236302 | GEO

Long noncoding RNA expression profile in HLE B-3 cells during TGF-β2-induced epithelial-mesenchymal transition

Project description:Recent evidences have showed that long noncoding RNA (lncRNAs) are involved in the process of epithelial-mesenchymal transition (EMT). To understand lncRNAs expression profile and potential functions in EMT of lens epithelial cells (HLE B-3), we investigated the lncRNA and mRNA expression in normal cells and TGF-β2 induced cells using microarray analysis.

2017-04-27 | GSE98225 | GEO

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