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RNA sequencing to determine gene expression changes in Siglec-15 knockdown oteosarcoma cells

ABSTRACT: In our study, we found that Siglec-15 was critical to osteosarcoma characteristics. To identify the downstream target genes of Siglec-15 in osteosarcoma, we conducted the RNA-seq analysis of Siglec-15 knockdown in osteosarcoma cell line 143B cells.

ORGANISM(S): Homo sapiens

PROVIDER: GSE175414 | GEO | 2021/05/25

REPOSITORIES: GEO

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Effect of deficiency of Siglec-15 during osteoclast differentiation of murine bone marrow macrophages

Project description:To investigate the function of Siglec-15 in the regulation of osteoclast differentiation, Siglec-15 deficient mice was established. Then gene expression profiling analysis using data obtained from RNA-seq of bone marrow macrophages with M-CSF and RANKL at two different time points was performed.

2023-12-01 | GSE218768 | GEO

RNA sequencing to determine gene expression changes in Siglec-15 knockdown oteosarcoma cells

Project description:RNA sequencing to determine gene expression changes in Siglec-15 knockdown oteosarcoma cells

| PRJNA732360 | ENA

Structural insights into Siglec-15 reveal glycosylation dependency for its interaction with T cells through integrin CD11b

Project description:Sialic acid-binding Ig-like lectin 15 (Siglec-15) is emerging as an immune modulator and target for cancer immunotherapy. However, limited knowledge regarding its mechanism of action and structure, or its binding partners with T cells, restrains the development of drug candidates that could unleash its full therapeutic potential. Here, we determine the crystal structure of Siglec-15 and delineate its binding epitope by co-crystallization with an anti-Siglec-15 blocking antibody. Saturation transfer-difference nuclear magnetic resonance (STD-NMR) spectroscopy assisted with molecular dynamics simulations reveals the binding mode of Siglec-15 to (2,3)- and 2,6)- linked sialic acids and to the cancer-associated sialyl-Tn (STn) glycoform. Binding of Siglec-15 to T cells, which lack STn expression, depends on the presence of (2,3)- and 2,6)- linked sialoglycans. We identify the leukocyte integrin CD11b as a binding partner of Siglec-15 on human T cells. Collectively, these data provide an integrative understanding of the structural features of Siglec-15 and underscore glycosylation as an additional layer of control of T cell responses.

2023-07-20 | PXD042009 | Pride

Identification of ALKBH5 targets in osteosarcoma by methyl RNA immunoprecipitation [MeRIP-seq]

Project description:To identify potential target mRNAs that are demethylated by ALKBH5, meRIP-seq with a m6A antibody was conducted in 143B osteosarcoma cells transfected with scrambled or ALKBH5-siRNA.

2022-06-28 | GSE154529 | GEO

Gene regulation by m6A demethylase ALKBH5 in osteosarcoma [RNA-seq]

Project description:To identify target genes regulated by ALKBH5 in osteosarcoma, we silenced the expression of ALKBH5 in osteosarcoma cell line-143B and tested its effect on 143B transcriptome.

2022-06-28 | GSE154528 | GEO

Expression profiling of 143B-shCtrl and 143B-shIRX1 stable osteosarcoma cell lines

Project description:Pulmonary metastasis is the main cause of medical failure and death of osteosarcoma patients. Our recent study identified IRX1 as a potential metastasis-driving gene in osteosarcoma. Studies showed that IRX1 can promote the migration, invasion and anoikis resistance of osteosarcoma cells. We generated 143B stable IRX1 knockdown and control cell lines, and found that IRX1 knockdown can inhibit the pulmonary metastasis of 143B cells in orthotopic mouse osteosarcoma model. Expression microarrays are performed in143B-shCtrl and 143B-shIRX1 cells to study the mechanism of IRX1 on promoting metastasis of osteosarcoma

2015-08-25 | E-GEOD-55958 | biostudies-arrayexpress

Type-I interferon inducible genes 26 weeks after mCMV infection in Siglec-H wt and Siglec-H ko mice and their non infected controls

Project description:Type I interferons are critical anti-viral cytokines during virus infections and have also been implicated in the pathogenesis of systemic lupus erythematosus (SLE). The secretion of type I interferon of pDCs is modulated by Siglec-H, a DAP12 associated receptor on pDCs. We showed that Siglec-H deficient pDCs produce more of the type I interferon IFN-Î± in vitro and that Siglec-H ko mice produce more IFN-Î± after murine cytomegalovirus (mCMV) infection in vivo, leading to efficient clearance of the virus. Furthermore, ageing Siglec-H ko mice showed a mild form of systemic autoimmunity. In contrast, Siglec-H ko mice developed a severe form of systemic lupus-like autoimmune disease with strong kidney nephritis several weeks after a single mCMV infection. This induction of systemic autoimmune disease after virus infection in Siglec-H ko mice was accompanied by a type I interferon signature and fully dependent on type I interferon signaling. These results show that Siglec-H normally serves as modulator of type I interferon responses after infection with a persistent virus and thereby prevents induction of autoimmune disease. For microarray experiments gene expression profiles of total splenic cells from two wt and Siglec-H ko mice 26 weeks after infection with luciferase expressing murine Cytomegalovirus (5x105 pfu) or from two uninfected wt and Siglec-H ko control mice were analyzed

2016-03-16 | E-GEOD-79248 | biostudies-arrayexpress

Determine anti-Siglec-F and IL-33 costimulation induced transcriptional changes on murine eosinophils

Project description:Eosinophils costimulation with anti-Siglec-F and IL-33 synergistically increases their IL-4 and IL-13 release (Willebrand et al. PLoS One 2016). Here we analyze costimulation induced transcriptional changes involved that potentially enhance effector release.

2021-11-23 | GSE166968 | GEO

Expression profiling of 143B-shCtrl and 143B-shIRX1 stable osteosarcoma cell lines

2015-08-25 | GSE55958 | GEO

Effect of soluble Siglec-14 on macrophage polarization

Project description:Influence of soluble Siglec-14 on macrophage poloarization was examined by analyzing the transcripts from human macrophages cultured in the presence or absence of recombinant soluble Siglec-14 protein

2018-10-29 | GSE121311 | GEO

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