ArticleCell communication and signaling : CCS2020
AKT2 deficiency impairs formation of the BCR signalosome.
Article in Cell communication and signaling : CCS, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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5 citing papers in PubMed, 7 citations in OpenAlex.
- MAPK4 inhibits the early aberrant activation of B cells in rheumatoid arthritis by promoting the IRF4-SHIP1 signaling pathway.Cell death & disease · 2025Article
- PGRN Inhibits Early B-cell Activation and IgE Production Through the IFITM3-STAT1 Signaling Pathway in Asthma.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024Article
- Progranulin regulates the development and function of NKT2 cells through EZH2 and PLZF.Cell death and differentiation · 2022Article
- Review
- AKT Isoforms in the Immune Response in Cancer.Current topics in microbiology and immunology · 2022Article
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Authors and funding
15 authors at 6 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundAKT2 is one of the key molecules that involves in the insulin-induced signaling and the development of cancer. In B cells, the function of AKT2 is unclear.
methodsIn this study, we used AKT2 knockout mice model to study the role of AKT2 in BCR signaling and B cell differentiation.
resultsAKT2 promotes the early activation of B cells by enhancing the BCR signaling and actin remodeling. B cells from AKT2 KO mice exhibited defective spreading and BCR clustering upon stimulation in vitro. Disruption of Btk-mediated signaling caused the impaired differentiation of germinal center B cells, and the serum levels of both sepecific IgM and IgG were decreased in the immunized AKT2 KO mice. In addition, the actin remodeling was affected due to the decreased level of the activation of WASP, the actin polymerization regulator, in AKT2 KO mice as well. As a crucial regulator of both BCR signaling and actin remodeling during early activation of B cells, the phosphorylation of CD19 was decreased in the AKT2 absent B cells, while the transcription level was normal.
conclusionsAKT2 involves in the humoral responses, and promotes the BCR signaling and actin remodeling to enhance the activation of B cells via regulating CD19 phosphorylation. Video Abstract.
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