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http://purl.uniprot.org/citations/18596915http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/18596915http://www.w3.org/2000/01/rdf-schema#comment"

Background

The Rel/NF-kappaB transcription factors are often activated in solid or hematological malignancies. In most cases, NF-kappaB activation is found in malignant cells and results from activation of the canonical NF-kappaB pathway, leading to RelA and/or c-Rel activation. Recently, NF-kappaB activity in inflammatory cells infiltrating solid tumors has been shown to contribute to solid tumor initiation and progression. Noncanonical NF-kappaB activation, which leads to RelB activation, has also been reported in breast carcinoma, prostate cancer, and lymphoid leukemia.

Methodology/principal findings

Here we report a novel role for RelB in stromal cells that promote T-cell leukemogenesis. RelB deficiency delayed leukemia onset in the TEL-JAK2 transgenic mouse model of human T acute lymphoblastic leukemia. Bone marrow chimeric mouse experiments showed that RelB is not required in the hematopoietic compartment. In contrast, RelB plays a role in radio-resistant stromal cells to accelerate leukemia onset and increase disease severity.

Conclusions/significance

The present results are the first to uncover a role for RelB in the crosstalk between non-hematopoietic stromal cells and leukemic cells. Thus, besides its previously reported role intrinsic to specific cancer cells, the noncanonical NF-kappaB pathway may also play a pro-oncogenic role in cancer microenvironmental cells."xsd:string
http://purl.uniprot.org/citations/18596915http://purl.org/dc/terms/identifier"doi:10.1371/journal.pone.0002555"xsd:string
http://purl.uniprot.org/citations/18596915http://purl.uniprot.org/core/author"dos Santos N.R."xsd:string
http://purl.uniprot.org/citations/18596915http://purl.uniprot.org/core/author"Ghysdael J."xsd:string
http://purl.uniprot.org/citations/18596915http://purl.uniprot.org/core/author"Janin A."xsd:string
http://purl.uniprot.org/citations/18596915http://purl.uniprot.org/core/author"Cormier F."xsd:string
http://purl.uniprot.org/citations/18596915http://purl.uniprot.org/core/author"Weih F."xsd:string
http://purl.uniprot.org/citations/18596915http://purl.uniprot.org/core/author"Gachet S."xsd:string
http://purl.uniprot.org/citations/18596915http://purl.uniprot.org/core/author"Williame M."xsd:string
http://purl.uniprot.org/citations/18596915http://purl.uniprot.org/core/author"Weih D."xsd:string
http://purl.uniprot.org/citations/18596915http://purl.uniprot.org/core/date"2008"xsd:gYear
http://purl.uniprot.org/citations/18596915http://purl.uniprot.org/core/name"PLoS One"xsd:string
http://purl.uniprot.org/citations/18596915http://purl.uniprot.org/core/pages"e2555"xsd:string
http://purl.uniprot.org/citations/18596915http://purl.uniprot.org/core/title"RelB-dependent stromal cells promote T-cell leukemogenesis."xsd:string
http://purl.uniprot.org/citations/18596915http://purl.uniprot.org/core/volume"3"xsd:string
http://purl.uniprot.org/citations/18596915http://www.w3.org/2004/02/skos/core#exactMatchhttp://purl.uniprot.org/pubmed/18596915
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