Cited by 27Bone Metabolism and DiseasesNF-κB Signaling PathwaysT-cell and B-cell Immunology

Phospholipase Cγ2 Mediates RANKL-stimulated Lymph Node Organogenesis and Osteoclastogenesis

Open access
Chen, Yabing, Wang, Xiaohong, Di, Lie, Fu, Guoping, Chen, Yuhong, Bai, Li, Liu, Jianzhong, Feng, Xu +8 more·2008·Journal of Biological Chemistry

Abstract

Phospholipase Cgamma2 (PLCgamma2) is an important signaling effector of multiple receptors in the immune system. Here we show that PLCgamma2-deficient mice displayed impaired lymph node organogenesis but normal splenic structure and Peyer's patches. Receptor activator of NF-kappaB ligand (RANKL) is a tumor necrosis factor family cytokine and is essential for lymph node organogenesis. Importantly, PLCgamma2 deficiency severely impaired RANKL signaling, resulting in marked reduction of RANKL-induced activation of MAPKs, p38 and JNK, but not ERK. The lack of PLCgamma2 markedly diminished RANKL-induced activation of NF-kappaB, AP-1, and NFATc1. Moreover, PLCgamma2 deficiency impaired RANKL-mediated biological function, leading to failure of the PLCgamma2-deficient bone marrow macrophage precursors to differentiate into osteoclasts after RANKL stimulation. Re-introduction of PLCgamma2 but not PLCgamma1 restores RANKL-mediated osteoclast differentiation of PLCgamma2-deficient bone marrow-derived monocyte/macrophage. Taken together, PLCgamma2 is essential for RANK signaling, and its deficiency leads to defective lymph node organogenesis and osteoclast differentiation.

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Crossref · 10.1074/jbc.m802493200

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  • Blocking PLCγ2 impedes the early development and function of osteoclasts, thereby preventing bone loss in arthritis.

    “Moreover, PLCγ2-deficient mouse studies showed that blocking PLCγ2 impedes the early development and function of osteoclasts, thereby preventing bone loss in arthritis (99, 100).”

    From The role of PLCγ2 in immunological disorders, cancer, and neurodegeneration (2021) · cites this paper as [100]

    The osteoclast-formation results (page unavailable) show that PLCγ2-deficient bone marrow precursors failed to form multinucleated osteoclasts after RANKL stimulation. The in-vivo bone results report fewer osteoclasts and greater bone density in deficient mice. The paper does not show that PLCγ2 blockade prevents bone loss in arthritis, and it does not directly test mature osteoclast function. (LLM, conf=0.88)

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Authors
Chen, Y., Wang, X., Di, L., Fu, G., Chen, Y., Bai, L., Liu, J., Feng, X., McDonald, J. M., Michalek, S., He, Y., Yu, M., Fu, Y.-X., Wen, R., Wu, H., & Wang, D.
Affiliations
  • University of Alabama at Birmingham (US)
  • Versiti Blood Center of Wisconsin (US)
  • University of Chicago (US)
Corresponding author
  • Wu, Hui
  • Wang, Demin
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
2008-10
Volume
283
Issue
43
Pages
29593-29601
ISSN
0021-9258 (ISSN-L)
OpenAlex
W1986056008
Cited by
27
References
84
Citations by year
2023: 3 · 2021: 3 · 2020: 1 · 2019: 3 · 2017: 1 · 2016: 1 · 2015: 1 · 2014: 2 · 2013: 1 · 2012: 3
FWCI
1.10
Type
journal article
Language
en
Open access
Locations
  • Journal of Biological Chemistry (publishedVersion, cc-by)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Leukemia and Lymphoma Society
  • University of Alabama at Birmingham
  • University of Alabama
  • National Institutes of Health (P30-AR46031, AR046031)
  • National Heart, Lung, and Blood Institute (HL073284, R01HL073284)
  • National Institute of Allergy and Infectious Diseases (R01AI079087, R01AI052327, AI079087, AI52327)
  • National Institute of Arthritis and Musculoskeletal and Skin Diseases (P30AR046031, R03AR055339, AR046031-080003, AR055339, P30 AR 46031)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bone Metabolism and Diseases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › NF-κB Signaling Pathways
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
Keywords
PLCγ2, RANKL, osteoclastogenesis, RANK signaling, NF-κB activation, MAPK signaling, p38 MAPK, JNK, NFATc1, AP-1, bone marrow-derived macrophages, monocyte-to-macrophage differentiation, PLCγ1, Peyer's patches
MeSH terms
Animals, Cell Differentiation, Lymph Nodes, Mice, Transgenic, Models, Biological, Osteoclasts, Spleen, Signal Transduction, Cytokines, Organogenesis, Extracellular Signal-Regulated MAP Kinases, p38 Mitogen-Activated Protein Kinases, Mice, Phospholipase C gamma, RANK Ligand

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