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HO-1 attenuates testicular ischemia/reperfusion injury through activating the phosphorylated c-Jun-miR-221/222-TOX pathway [miRNA]

ABSTRACT: HO-1 attenuates testicular ischemia/reperfusion injury through activating the phosphorylated c-Jun-miR-221/222-TOX pathway [miRNA]

PROVIDER: PRJNA991541 | ENA |

REPOSITORIES: ENA

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HO-1 attenuates testicular ischemia/reperfusion injury through activating the phosphorylated c-Jun-miR-221/222-TOX pathway [miRNA]

Project description:Heme oxygenase(HO-1) has been shown to protect against I/R injury, but its effects on testicular I/R is very limited. Therefore, this study aims to investigate the effects of HO-1 on testicular I/R and the underlying mechanism.Knockout of HO-1 rats by TALEN technique.Immunofluorescence and immunohistochemistry was used to detect HO-1 nuclear translocation. Flow cytometry was used to detect cell apoptosis and cell cycle.High-resolution miRNA,mRNA sequencing, real-time PCR and western blot were performed to select testicular I/R injury related genes with strong conservation in HO-1 knockout rats.Double luciferase reporter assay was used to verify the relationship between c-Jun and miR-221/222.We found that HO-1 improved the pathological damage caused by testicular I/R in vivo. We verified the nuclear translocation of HO-1 and its protective effect on hypoxia/reoxygenation(H/R) damage in GC-1 cells.And our results indicated that HO-1 protein itself rather than heme breakdown metabolites might play a key role in testicular I/R.Gene sequencing was performed to screen out MiR221/222 and its downstream gene-thymocyte selection associated high mobility group box(TOX). In addition, we found that HO-1 increased phosphorylation of c-Jun in H/R group.We knocked down c-Jun in GC-1 cells and observed a decrease in the expression of miR-221/222.And we found by inhibiting HO-1,we observed a decrease in the expression of c-jun and miR-221/222,which could be rescued by adding c-jun. The dual luciferase reporter assay confirmed the interaction between c-Jun and miR-221/222. Collectively, HO-1 possesses a protective effect on testicular I/R via phosphorylated c-Jun-miR-221/222-TOX pathway.

2024-02-14 | GSE236536 | GEO

HO-1 attenuates testicular ischemia/reperfusion injury through activating the phosphorylated c-Jun-miR-221/222-TOX pathway [lncRNA+circRNA]

2024-02-14 | GSE237563 | GEO

HO-1 attenuates testicular ischemia/reperfusion injury through activating the phosphorylated c-Jun-miR-221/222-TOX pathway

Project description:HO-1 attenuates testicular ischemia/reperfusion injury through activating the phosphorylated c-Jun-miR-221/222-TOX pathway

| PRJNA995743 | ENA

HO-1 attenuates testicular ischemia/reperfusion injury through activating the phosphorylated c-Jun-miR-221/222-TOX pathway [lncRNA+circRNA]

Project description:HO-1 attenuates testicular ischemia/reperfusion injury through activating the phosphorylated c-Jun-miR-221/222-TOX pathway [lncRNA+circRNA]

| PRJNA995747 | ENA

Antisense miRNA-221/222 (si221/222) and control inhibitor (GFP) treated fulvestrant-resistant breast cancer cells

2011-01-29 | GSE19777 | GEO

Gene expression profiling of MCF10A (miR-221/222 vs control)

Project description:Analysis of gene expression of MCF10A to identify the targets of miR-221 and miR-222 Keywords: MCF10, miR-221, miR-222

2011-06-14 | GSE29327 | GEO

Gene expression profiling of MCF10A (miR-221/222 vs control)

Project description:Analysis of gene expression of MCF10A to identify the targets of miR-221 and miR-222 Keywords: MCF10, miR-221, miR-222 RNA profiles of human MCF10A cell line

2011-06-14 | E-GEOD-29327 | biostudies-arrayexpress

Antisense miRNA-221/222 (si221/222) and control inhibitor (GFP) treated fulvestrant-resistant breast cancer cells

Project description:Full title: Expression data from antisense miRNA-221/222 (si221/222) and control inhibitor (GFP) treated fulvestrant-resistant breast cancer cells The expression of miR-221/222 were found to be upregulated in fulvestrant resistant breast cancer cells MCF7-FR compared to its drug-sensitive counterpart MCF7. To investigate the role of miR-221/222 in acquired resistance to fulvestrant, we lowered the level of miR-221/222 in MCF7-FR cells using miRNA inhibitors (antagomirs), and compared gene expression profiles before and after treatment. Fulvestrant-resistant breast cancer cells MCF7-FR (originated from drug-sentitive breast cancer model cell line MCF7) were transient-transfected by antigomirs targeting miR221 or miR222 (i.e. si221, si222). All three cell lines, MCF7-FR, siR221, siRNA222 were subjected to gene expression profiling.

2011-01-29 | E-GEOD-19777 | biostudies-arrayexpress

miR-221/222 drive synovial fibroblast expansion and pathogenesis of TNF-mediated arthritis

Project description:MicroRNAs (miRNAs) constitute fine tuners of gene expression and are implicated in a variety of diseases spanning from inflammation to cancer. miRNA expression is deregulated in rheumatoid arthritis (RA), however, their specific role in key arthritogenic cells such as the synovial fibroblast (SF) remains elusive. We have shown in the past that the expression of the miR-221/222 cluster is upregulated in RA SFs. Here, we demonstrate that miR-221/222 activation is downstream of major inflammatory cytokines, such as TNF and IL-1β, which promote miR-221/222 expression independently. miR-221/222 expression in SFs from the huTNFtg mouse model of arthritis correlates with disease progression. Targeted transgenic overexpression of miR-221/222 in SFs of the huTNFtg mouse model led to further expansion of synovial fibroblasts and disease exacerbation. miR-221/222 overexpression altered the transcriptional profile of SFs igniting pathways involved in cell cycle progression and ECM regulation. Validated targets of miR-221/222 included p27 and p57 cell cycle inhibitors, as well as Smarca1 (a chromatin remodeling component). In contrast, complete genetic ablation of miR-221/222 in arthritic mice led to decreased proliferation of fibroblasts, reduced synovial expansion and attenuated disease. scATAC-seq data analysis revealed increased miR-221/222 gene activity in the pathogenic and activated clusters of the intermediate and lining compartment. Taken together, our results establish an SF-specific pathogenic role of the miR-221/222 cluster in arthritis and suggest that its therapeutic targeting in specific subpopulations should inform the design of novel fibroblast-targeted therapies for human disease.

2022-12-16 | GSE210887 | GEO

Identification of genes differentially expressed in lung cancer cells after the transfection of miR-221 or miR-222.

Project description:To evaluate involvement of miR-221 and miR-222 in lung cancer, we investigated the effects of miR-221 and miR-222 overexpression on six lung cancer cell lines as well as one immortalized normal human bronchial epithelial cell line. Two cell lines, H3255 and H1299 with no replicates were studied. Cells were transfected with miR-221, miR-222, or miR control. Microarray analysis was done to identify genes differentially expressed in lung cancer cells after the transfection of miR-221 or miR-222.

2015-05-22 | E-GEOD-57676 | biostudies-arrayexpress

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