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Genome wide expression change by SMURF1 knocking down in MCF-7 cells

ABSTRACT: We aim to the investigate the role of SMURF1 in breast cancer progression. MCF-7 cells were used as the model and SMURF1 was silenced by siRNA.

ORGANISM(S): Homo sapiens

PROVIDER: GSE102653 | GEO | 2018/08/14

REPOSITORIES: GEO

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Genome wide expression change by RNF168 knocking down in MCF-7 cells

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Genome-wide expression change by SHARPIN knockdown in MCF-7 cells

Project description:We aim to investigate the role of SHARPIN in breast cancer progression. MCF-7 cells were used as the model and SHARPIN was silenced by siRNA.SHARPIN (SHANK-Associated RH Domain Interactor) is also named as SIPL1 and HSIPL1. The gene is located in Chr 8. SHARPIN protein is shown to regulate cell adhesion and migration. Besides, SHARPIN is proved to the component of the LUBAC complex and is necessary for NKFB function, while SHARPIN KO mice will lead to chronic dermatitis and immune deficiency in B cells.

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Smurf1 modulates Smad signaling pathway in fibrotic cataract formation [mouse_ASC]

Project description:Purpose: TGF-β/BMP signaling pathway has a significant role in fibrotic cataract. Smurf1, a ubiquitin protein ligase, regulates the TGF-β/BMP signaling pathway through the ubiquitin-proteasome system (UPS). This study aims to investigate the role of Smurf1 in the progression of fibrotic cataract and its underlying mechanism.Method: We employed a mouse injury-induced anterior subcapsular cataract (ASC) model and administered Smurf1 inhibitor A01 through anterior chamber injection for in vivo investigation. RNA sequencing was performed to examine global gene expression changes. The volume of the subcapsular opacity was determined using whole-mount immunofluorescence of lens anterior capsules. Lentivirus was utilized to create cell lines with Smurf1 knockdown or overexpression in SRA01/04. Protein levels were assessed by Simple Western. Lens epithelial cell (LEC) proliferation was evaluated by CCK8 and EdU assays. LEC migration was measured by Transwell and wound healing assays.Results: The mRNA levels of genes associated with cell proliferation, migration, epithelial-mesenchymal transition (EMT), TGF-β/BMP pathway and UPS, including Smurf1, were upregulated in ASC model. The mRNA expression of Smurf1 was also upregulated in anterior lens capsules of age-related cataract patients. Anterior chamber injection of A01 inhibited ASC formation and EMT. In vitro knockdown of Smurf1 resulted in reduced proliferation, TGF-β2-induced migration and EMT of LECs. Smurf1 inhibition upregulated Smad1, Smad5 and pSmad1/5. Conversely, Smurf1 overexpression displayed the opposite phenotypes.Conclusion: Smurf1 regulated the progression of fibrotic cataract by influencing the proliferation, migration and EMT of LECs through regulation of Smad signaling pathway, offering a novel target for the treatment of fibrotic cataract.

2024-02-14 | GSE245411 | GEO

Smurf1 modulates Smad signaling pathway in fibrotic cataract formation [cell line]

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