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

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

PROVIDER: PRJNA732360 | ENA |

REPOSITORIES: ENA

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

Project description: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.

2021-05-25 | GSE175414 | GEO

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

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

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

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

| PRJNA702493 | ENA

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

The inhibitory receptor Siglec-G controls the severity of chronic lymphocytic leukemia

Project description:Chronic Lymphocytic Leukaemia (CLL) is the most common leukemia in adults in the Western world. B cell receptor (BCR) signalling is known to be crucial for the pathogenesis and maintenance of CLL cells develop from mature CD5+ B cells. BCR signalling is regulated by the inhibitory co-receptor Siglec-G and Siglec-G-deficient mice have an enlarged CD5+ B1a cell population. Here, we determine how Siglec-G expression influences the severity of CLL.

2023-05-03 | GSE227678 | GEO

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

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

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-α in vitro and that Siglec-H ko mice produce more IFN-α 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.

2016-03-16 | GSE79248 | GEO

Phosphoproteomics identifies microglial Siglec-F inflammatory response during neurodegeneration

Project description:We used mRNA-seq analysis to explore the transcriptional response induced in BV-2 cells by stable overexpression Siglec-F and related human Siglec receptors compared to loss-of-function 2xY->F mutant receptors.

2020-09-01 | GSE149153 | GEO

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