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http://purl.uniprot.org/citations/12707323http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/12707323http://www.w3.org/2000/01/rdf-schema#comment"The signaling pathways that control T cell differentiation have only begun to be elucidated. Using T cell lines, it has been shown that class IA phosphatidylinositol 3-kinase (PI3K), a heterodimer composed of a p85 regulatory and a p110 catalytic subunit, is activated after TCR stimulation. Nonetheless, the contribution of p85/p110 PI3K isoforms in T cell development has not been described. Mice deficient in the other family of class I PI3K, p110gamma, which is regulated by G protein-coupled receptors, exhibit reduced thymus size. Here we examine T cell development in p110gamma-deficient mice and in mice expressing an activating mutation of the p85 regulatory subunit, p65(PI3K), in T cells. We show that p110gamma-deficient mice have a partial defect in pre-TCR-dependent differentiation, which is restored after expression of the p65(PI3K) activating mutation. Genetic alteration of both PI3K isoforms also affects positive selection; p110gamma deletion decreased and p65(PI3K) expression augmented the CD4(+)/CD8(+) differentiation ratio. Finally, data are presented showing that both PI3K isoforms influenced mature thymocyte migration to the periphery. These observations underscore the contribution of PI3K in T cell development, as well as its implication in determining the CD4(+)/CD8(+) T cell differentiation ratio in vivo."xsd:string
http://purl.uniprot.org/citations/12707323http://purl.org/dc/terms/identifier"doi:10.4049/jimmunol.170.9.4475"xsd:string
http://purl.uniprot.org/citations/12707323http://purl.uniprot.org/core/author"Hirsch E."xsd:string
http://purl.uniprot.org/citations/12707323http://purl.uniprot.org/core/author"Sanchez A."xsd:string
http://purl.uniprot.org/citations/12707323http://purl.uniprot.org/core/author"Hernandez C."xsd:string
http://purl.uniprot.org/citations/12707323http://purl.uniprot.org/core/author"Martinez-A C."xsd:string
http://purl.uniprot.org/citations/12707323http://purl.uniprot.org/core/author"Carrera A.C."xsd:string
http://purl.uniprot.org/citations/12707323http://purl.uniprot.org/core/author"Barber D.F."xsd:string
http://purl.uniprot.org/citations/12707323http://purl.uniprot.org/core/author"Wymann M."xsd:string
http://purl.uniprot.org/citations/12707323http://purl.uniprot.org/core/author"Rodriguez-Borlado L."xsd:string
http://purl.uniprot.org/citations/12707323http://purl.uniprot.org/core/author"Rodriguez-Marcos M.A."xsd:string
http://purl.uniprot.org/citations/12707323http://purl.uniprot.org/core/date"2003"xsd:gYear
http://purl.uniprot.org/citations/12707323http://purl.uniprot.org/core/name"J Immunol"xsd:string
http://purl.uniprot.org/citations/12707323http://purl.uniprot.org/core/pages"4475-4482"xsd:string
http://purl.uniprot.org/citations/12707323http://purl.uniprot.org/core/title"Phosphatidylinositol 3-kinase regulates the CD4/CD8 T cell differentiation ratio."xsd:string
http://purl.uniprot.org/citations/12707323http://purl.uniprot.org/core/volume"170"xsd:string
http://purl.uniprot.org/citations/12707323http://www.w3.org/2004/02/skos/core#exactMatchhttp://purl.uniprot.org/pubmed/12707323
http://purl.uniprot.org/citations/12707323http://xmlns.com/foaf/0.1/primaryTopicOfhttps://pubmed.ncbi.nlm.nih.gov/12707323
http://purl.uniprot.org/uniprot/Q3U6Q4#attribution-D7A366BB50FA30672E30049C80A749ADhttp://purl.uniprot.org/core/sourcehttp://purl.uniprot.org/citations/12707323
http://purl.uniprot.org/uniprot/#_A0A1W2P8F6-mappedCitation-12707323http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/12707323
http://purl.uniprot.org/uniprot/#_Q24LN5-mappedCitation-12707323http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/12707323
http://purl.uniprot.org/uniprot/#_Q3UVA4-mappedCitation-12707323http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/12707323
http://purl.uniprot.org/uniprot/#_Q3V1C0-mappedCitation-12707323http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/12707323
http://purl.uniprot.org/uniprot/#_Q3U6Q4-mappedCitation-12707323http://www.w3.org/1999/02/22-rdf-syntax-ns#objecthttp://purl.uniprot.org/citations/12707323