| http://purl.uniprot.org/citations/17579026 | http://www.w3.org/1999/02/22-rdf-syntax-ns#type | http://purl.uniprot.org/core/Journal_Citation |
| http://purl.uniprot.org/citations/17579026 | http://www.w3.org/2000/01/rdf-schema#comment | "Aggregation of the high-affinity IgE receptor (FcepsilonRI) on mast cells initiates signaling pathways leading to degranulation and cytokine release. It has been reported that SHIP-1 negatively regulates FcepsilonRI-triggered pathways but it is unknown whether its homologous protein SHIP-2 has the same function. We have used a lentiviral-based RNA interference technique to obtain SHIP-2 knockdown bone marrow-derived mast cells (BMMCs) and have found that elimination of SHIP-2 results in both increased mast cell degranulation and cytokine (IL-4 and IL-13) gene expression upon FcepsilonRI stimulation. Elimination of SHIP-2 from BMMCs has no effect on FcepsilonRI-triggered calcium flux, tyrosine phosphorylation of MAPKs or in actin depolymerization following activation. Rather, we observe that absence of SHIP-2 results in increased activation of the small GTPase Rac-1 and in enhanced microtubule polymerization upon FcepsilonRI engagement. Coimmunoprecipitation experiments in rat basophilic leukemia (RBL 2H3) cells show that SHIP-2 interacts with the FcepsilonRI beta-chain, Gab2 and Lyn and that unlike SHIP-1, it does not associate with SHC in mast cells. Our results report a negative regulatory role of SHIP-2 on mast cell activation that is calcium independent and distinct from the regulation by SHIP-1."xsd:string |
| http://purl.uniprot.org/citations/17579026 | http://purl.org/dc/terms/identifier | "doi:10.4049/jimmunol.179.1.95"xsd:string |
| http://purl.uniprot.org/citations/17579026 | http://purl.uniprot.org/core/author | "Bolland S."xsd:string |
| http://purl.uniprot.org/citations/17579026 | http://purl.uniprot.org/core/author | "Leung W.H."xsd:string |
| http://purl.uniprot.org/citations/17579026 | http://purl.uniprot.org/core/date | "2007"xsd:gYear |
| http://purl.uniprot.org/citations/17579026 | http://purl.uniprot.org/core/name | "J Immunol"xsd:string |
| http://purl.uniprot.org/citations/17579026 | http://purl.uniprot.org/core/pages | "95-102"xsd:string |
| http://purl.uniprot.org/citations/17579026 | http://purl.uniprot.org/core/title | "The inositol 5'-phosphatase SHIP-2 negatively regulates IgE-induced mast cell degranulation and cytokine production."xsd:string |
| http://purl.uniprot.org/citations/17579026 | http://purl.uniprot.org/core/volume | "179"xsd:string |
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