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Monzón-Casanova, E.* ; Screen, M.* ; Díaz-Muñoz, M.D.* ; Coulson, R.M.R.* ; Bell, S.E.* ; Lamers, G.* ; Solimena, M. ; Smith, C.W.J.* ; Turner, M.*

The RNA-binding protein PTBP1 is necessary for B cell selection in germinal centers.

Nat. Immunol. 19, 267–278 (2018)
Postprint Forschungsdaten DOI PMC
Open Access Green
Antibody affinity maturation occurs in germinal centers (GCs), where B cells cycle between the light zone (LZ) and the dark zone. In the LZ, GC B cells bearing immunoglobulins with the highest affinity for antigen receive positive selection signals from helper T cells, which promotes their rapid proliferation. Here we found that the RNA-binding protein PTBP1 was needed for the progression of GC B cells through late S phase of the cell cycle and for affinity maturation. PTBP1 was required for proper expression of the c-MYC-dependent gene program induced in GC B cells receiving T cell help and directly regulated the alternative splicing and abundance of transcripts that are increased during positive selection to promote proliferation.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter C-myc; Affinity Maturation; Dynamic Regulation; Center Light; Expression; Kinase; Mouse; Gene; Proliferation; Regulator
Sprache englisch
Veröffentlichungsjahr 2018
HGF-Berichtsjahr 2018
ISSN (print) / ISBN 1529-2908
e-ISSN 1529-2916
Zeitschrift Nature Immunology
Quellenangaben Band: 19, Heft: 3, Seiten: 267–278 Artikelnummer: , Supplement: ,
Verlag Nature Publishing Group
Verlagsort New York
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Pancreatic Islet Research (IPI)
POF Topic(s) 90000 - German Center for Diabetes Research
Forschungsfeld(er) Helmholtz Diabetes Center
PSP-Element(e) G-502600-001
DOI 10.1038/s41590-017-0035-5
WOS ID WOS:000427007500016
Scopus ID 85040762293
PubMed ID 29358707
Erfassungsdatum 2018-03-05
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