ArticleScientific reports2017
Syk-dependent tyrosine phosphorylation of 3BP2 is required for optimal FcRγ-mediated phagocytosis and chemokine expression in U937 cells.
Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 16 citations in OpenAlex.
- Key Role of Pro230 in the Hinge Region on the Architecture and Function of IgG1.Journal of medicinal chemistry · 2026Article
- Paeoniflorin Ameliorates Metabolic Dysfunction-Associated Steatotic Liver Disease by SYK/SH3BP2 Signaling Pathway.Research (Washington, D.C.) · 2026Article
- CD300ld promotes neutrophil bacterial phagocytosis in sepsis.Journal of leukocyte biology · 2025Article
- Immunomodulatory role of spleen tyrosine kinase in chronic inflammatory and autoimmune diseases.Immunity, inflammation and disease · 2023Review
- Crosslinking of membrane CD13 in human neutrophils mediates phagocytosis and production of reactive oxygen species, neutrophil extracellular traps and proinflammatory cytokines.Frontiers in immunology · 2022Article
- MYO1F Regulates IgE and MRGPRX2-Dependent Mast Cell Exocytosis.Journal of immunology (Baltimore, Md. : 1950) · 2021Article
- SH3BP2 Deficiency Ameliorates Murine Systemic Lupus Erythematosus.International journal of molecular sciences · 2021Article
- Alveolar Bone Protection by Targeting the SH3BP2-SYK Axis in Osteoclasts.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2020Article
- Article
- Tankyrase (PARP5) Inhibition Induces Bone Loss through Accumulation of Its Substrate SH3BP2.Cells · 2019Review
Corrections and comments
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The adaptor protein c-Abl SH3 domain binding protein-2 (3BP2) is tyrosine phosphorylated by Syk in response to cross-linking of antigen receptors, which in turn activates various immune responses. Recently, a study using the mouse model of cherubism, a dominant inherited disorder caused by mutations in the gene encoding 3BP2, showed that 3BP2 is involved in the regulation of phagocytosis mediated by Fc receptor for IgG (FcγR) in macrophages. However, the molecular mechanisms underlying 3BP2-mediated regulation of phagocytosis and the physiological relevance of 3BP2 tyrosine phosphorylation remains elusive. In this study, we established various gene knockout U937 cell lines using the CRISPR/Cas9 system and found that 3BP2 is rapidly tyrosine phosphorylated by Syk in response to cross-linking of FcγRI. Depletion of 3BP2 caused significant reduction in the Fc receptor γ chain (FcRγ)-mediated phagocytosis in addition to the FcγRI-mediated induction of chemokine mRNA for IL-8, CCL3L3 and CCL4L2. Syk-dependent tyrosine phosphorylation of 3BP2 was required for overcoming these defects. Finally, we found that the PH and SH2 domains play important roles on FcγRI-mediated tyrosine phosphorylation of 3BP2 in HL-60 cells. Taken together, these results indicate that Syk-dependent tyrosine phosphorylation of 3BP2 is required for optimal FcRγ-mediated phagocytosis and chemokine expression.
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