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Kübelbeck, T.* ; Wichmann, N. ; Raj, T.* ; Raj, C.* ; Ohnmacht, C. ; Hövelmeyer, N.* ; Kramer, D.* ; Heissmeyer, V.

Regulation and function of the atypical IκBs-Bcl-3, IκBNS, and IκBζ-in lymphocytes and autoimmunity.

Eur. J. Immunol. 55:e202451273 (2025)
Postprint DOI PMC
Open Access Hybrid
Creative Commons Lizenzvertrag
Signaling pathways involving NF-κB transcription factors have essential roles in inflammation, immunity, cell proliferation, differentiation, and survival. Classical IκB proteins, such as IκBα and IκBβ, bind to NF-κB via ankyrin repeats to sequester NF-κB in the cytoplasm and thus suppress NF-κB activity. Unlike these constitutively expressed classical IκBs, the expression of the atypical IκBs Bcl-3, IκBNS, and IκBζ is induced in immune cells after recognition of antigens, pathogen-associated molecular patterns (PAMPs) or cytokines, upon which they localize to the nucleus and form complexes with transcription factors and regulators on the DNA. Atypical, nuclear IκBs have been proposed to modulate NF-κB activity in a context-dependent manner as they can either inhibit or increase gene expression of a subset of NF-κB target genes. This complexity may be related to the molecular function of atypical IκBs, which bind to different transcription factor complexes and form a bridge to different cofactors or epigenetic modifiers. Recent research has identified novel target genes of atypical IκBs that include chemokines, cytokines, and master regulators of lymphocyte differentiation, underscoring prominent roles in adaptive immune and autoimmune responses. Here, we summarize our current understanding of atypical IκBs in lymphocytes with a focus on their emerging role in autoimmunity.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Review
Schlagwörter Bcl3 ; Nf‐κb ; Nfkbid ; Nfkbiz ; Autoimmunity ; Lymphocytes; Candidate Protooncogene Bcl-3; T-cell Development; Oncoprotein Bcl-3; P50 Homodimers; Targeted Disruption; Crystal-structure; Epithelial-cells; Messenger-rnas; Binding-sites; Dna-binding
Sprache englisch
Veröffentlichungsjahr 2025
HGF-Berichtsjahr 2025
ISSN (print) / ISBN 0014-2980
e-ISSN 1521-4141
Quellenangaben Band: 55, Heft: 5, Seiten: , Artikelnummer: e202451273 Supplement: ,
Verlag Wiley
Verlagsort Hoboken
Begutachtungsstatus Peer reviewed
POF Topic(s) 30203 - Molecular Targets and Therapies
30202 - Environmental Health
Forschungsfeld(er) Immune Response and Infection
Allergy
PSP-Element(e) G-501712-001
G-505400-001
G-505491-001
Förderungen Wilhelm-Sander Foundation
Foundation of Experimental Biomedicine and Boehringer Ingelheim Foundation
German Research Foundation
Deutsche Forschungsgemeinschaft
Scopus ID 105004795416
PubMed ID 40359334
Erfassungsdatum 2025-05-15