Project description:We have confirmed that OTUD1 interacted directly with Akt and inhibited Akt phosphorylation. To investigate the exact mechanism of OTUD1 in the regulation of Akt signaling pathway, we established T24 cells with stable OTUD1 depletion by using sgRNA.
Project description:We have confirmed that high level of OTUD1 is important for retaining ovarian cancer stem cells (OCSCs) property. To investigate the exact mechanism of OTUD1 in the regulation of stemness maintain, we established SKOV3 cells with stable OTUD1 depletion by using sgRNA.
Project description:To identify DNA accessibility targets regulated by the SWI/SNF subunit SMARCB1 in bladder cancer, we compared the ATAC-seq signals in T24 cells engineered for SMARCB1 knockout, non-targeting control, or SMARCB1 re-expression following knockout. Analysis of altered DNA accessibility profiles revealed new roles for SMARCB1 in the regulation of gene expression in bladder cancer, and suggested new therapeutic opportunities.
Project description:Understanding the molecular mechanisms of pathological vascular remodeling is important for treating cardiovascular diseases and complications. Recent studies have highlighted a role of deubiquitinases in vascular pathophysiology. In this study, we investigated the role of a deubiquitinase, OTUD1, in angiotensin II (Ang II)-induced vascular remodeling. We identified upregulated OTUD1 in the vascular endothelium of Ang II-challenged mice and showed OTUD1 deletion attenuated vascular remodeling, collagen deposition, and EndMT. Conversely, OTUD1 overexpression aggravated these pathological changes both in vivo and in vitro. Mechanistically, SMAD3 was identified as a substrate of OTUD1 using co-immunoprecipitation followed with LC-MS/MS. We found OTUD1 stabilizes SMAD3 and facilitates SMAD3/SMAD4 complex formation and subsequent nuclear translocation through both K48- and K63-linked deubiquitination. OTUD1-mediated SMAD3 activation regulate the transcription of genes involved in vascular EndMT and remodeling in HUVECs. Finally, SMAD3 inhibition reversed OTUD1-promoted vascular remodeling. Our findings demonstrate endothelial OTUD1 promoted Ang II-induced vascular remodeling by deubiquitinating SMAD3. This study identified SMAD3 as a target of OTUD1 and indicates OTUD1 as a potential therapeutic target for the diseases related to vascular remodeling.
Project description:Deubiquitinating enzymes have gained more and more attention in the field of pathological cardiac hypertrophy. In this study, we explored the role of a deubiquitinase, OTUD1, in the transverse aortic constriction (TAC) induced cardiac hypertrophy. We found the upregulation of OTUD1 in heart tissues of TAC mice. OTUD1 overexpression promoted cardiac hypertrophy, cardiac fibrosis and apoptosis. Conversely, OTUD1 depletion alleviated these pathological changes both in vivo and in vitro. Mechanistically, ASK1 was identified as one substrate of OTUD1 using co-immunoprecipitation followed with LC-MS/MS. Interestingly, OTUD1 didn’t deubiquitinate ASK1, but increased the phosphorylation level of ASK1 during the process of cardiac hypertrophy. We found that PGAM5, the upper stream regulator of ASK1, was stabilized by OTUD1 in a K63 ubiquitin chain dependent way, which reminded us OTUD1 increased the phosphorylation level of ASK1 by deubiquitinating PGAM5. This study identified the OTUD1-ASK1 axis as a potential therapeutic target for pathological cardiac hypertrophy.
Project description:We report that OTUD1 acts as an immune regulator in periodontitis. OTUD1 inhibits neutrophils migration to inflammatory site via blocking surface protein presentation. Our data reveals that activation of OTUD1 may be a potential strategy for periodontitis treatment.
Project description:The goals of the study are to compare differently expressed proteins in activated CD4T and OTUD1-deficient CD4T cells. Proteomics was performed with activated CD4T and OTUD1-deficient CD4T cells (n = 3 for each group) to identify the differently expressed proteins and related signaling pathway affected by OTUD1.
Project description:This study aims to investigate whether circSLC38A1 could affect the enrichment of downstream genes by the transcription factor ILF3.T24 cells were treated with a control scramble (scr) siRNA or a siRNA that specifically knock down the expression of circSLC38A1, 48h after ttansfection, cells were collected and treated for CUT-tag.CUT-tag-Seq analysis provided evidence of ILF3 enrichment of downstream genes changes between si-NC and si-circSLC38A1 T24 cells.
Project description:Target genes regulated by G9a in bladder cancer cells T24 In this dataset, we include the expression data obtained from bladder cancer cells T24 treated with G9a siRNA or negative control siRNA. These data are used to obtain genes that are differentially expressed in response to G9a konckdown.