PMID- 19734904 OWN - NLM STAT- MEDLINE DCOM- 20091009 LR - 20211020 IS - 1529-2916 (Electronic) IS - 1529-2908 (Print) IS - 1529-2908 (Linking) VI - 10 IP - 10 DP - 2009 Oct TI - Ras orchestrates exit from the cell cycle and light-chain recombination during early B cell development. PG - 1110-7 LID - 10.1038/ni.1785 [doi] AB - Signals through the pre-B cell antigen receptor (pre-BCR) and interleukin 7 receptor (IL-7R) coordinate pre-B cell population expansion with subsequent recombination of the locus encoding immunoglobulin kappa-chain (Igk). Although many 'downstream' effectors of each receptor are known, how they integrate to mediate development has remained unclear. Here we report that pre-BCR-mediated activation of the Ras-MEK-Erk signaling pathway silenced transcription of Ccnd3 (encoding cyclin D3) and coordinated exit from the cell cycle with induction of the transcription factor E2A and the initiation of Igk recombination. IL-7R-mediated activation of the transcription factor STAT5 opposed this pathway by promoting Ccnd3 expression and concomitantly inhibiting Igk transcription by binding to the Igk intronic enhancer and preventing E2A recruitment. Our data show how pre-BCR signaling poises pre-B cells to undergo differentiation after escape from IL-7R signaling. FAU - Mandal, Malay AU - Mandal M AD - Department of Medicine, Section of Rheumatology, University of Chicago, Chicago, Illinois, USA. FAU - Powers, Sarah E AU - Powers SE FAU - Ochiai, Kyoko AU - Ochiai K FAU - Georgopoulos, Katia AU - Georgopoulos K FAU - Kee, Barbara L AU - Kee BL FAU - Singh, Harinder AU - Singh H FAU - Clark, Marcus R AU - Clark MR LA - eng GR - R01 GM052736/GM/NIGMS NIH HHS/United States GR - R01 GM067772-04/GM/NIGMS NIH HHS/United States GR - R01 GM052736-10/GM/NIGMS NIH HHS/United States GR - R01 GM052736-11/GM/NIGMS NIH HHS/United States GR - R01 GM067772-04S1/GM/NIGMS NIH HHS/United States GR - R01 GM088847/GM/NIGMS NIH HHS/United States GR - R01 GM088847-01A2/GM/NIGMS NIH HHS/United States GR - R01 GM067772/GM/NIGMS NIH HHS/United States PT - Journal Article DEP - 20090906 PL - United States TA - Nat Immunol JT - Nature immunology JID - 100941354 RN - 0 (Basic Helix-Loop-Helix Transcription Factors) RN - 0 (Ccnd3 protein, mouse) RN - 0 (Cyclin D3) RN - 0 (Cyclins) RN - 0 (Immunoglobulin Light Chains) RN - 0 (Receptors, Interleukin-7) RN - 0 (STAT5 Transcription Factor) RN - 0 (Tcf3 protein, mouse) RN - EC 2.7.11.24 (Extracellular Signal-Regulated MAP Kinases) RN - EC 2.7.11.25 (MAP Kinase Kinase Kinases) RN - EC 3.6.5.2 (ras Proteins) SB - IM MH - Animals MH - B-Lymphocytes/*cytology/immunology MH - Basic Helix-Loop-Helix Transcription Factors/immunology/metabolism MH - Cell Cycle/genetics/*immunology MH - Cell Differentiation/*immunology MH - Cyclin D3 MH - Cyclins/immunology/metabolism MH - Electrophoretic Mobility Shift Assay MH - Extracellular Signal-Regulated MAP Kinases/immunology MH - Flow Cytometry MH - Gene Expression Regulation/immunology MH - Gene Silencing/immunology MH - Immunoblotting MH - Immunoglobulin Light Chains/*genetics MH - MAP Kinase Kinase Kinases/immunology MH - Mice MH - Mice, Knockout MH - Oligonucleotide Array Sequence Analysis MH - Receptors, Interleukin-7/immunology/metabolism MH - Recombination, Genetic MH - Reverse Transcriptase Polymerase Chain Reaction MH - STAT5 Transcription Factor/immunology/metabolism MH - Signal Transduction/*immunology MH - ras Proteins/genetics/*immunology/metabolism PMC - PMC3057509 MID - NIHMS249116 EDAT- 2009/09/08 06:00 MHDA- 2009/10/10 06:00 PMCR- 2011/03/15 CRDT- 2009/09/08 06:00 PHST- 2009/06/12 00:00 [received] PHST- 2009/07/27 00:00 [accepted] PHST- 2009/09/08 06:00 [entrez] PHST- 2009/09/08 06:00 [pubmed] PHST- 2009/10/10 06:00 [medline] PHST- 2011/03/15 00:00 [pmc-release] AID - ni.1785 [pii] AID - 10.1038/ni.1785 [doi] PST - ppublish SO - Nat Immunol. 2009 Oct;10(10):1110-7. doi: 10.1038/ni.1785. Epub 2009 Sep 6.