Cited by 318Bone Metabolism and DiseasesImmunodeficiency and Autoimmune DisordersOsteomyelitis and Bone Disorders Research

DAP12/TREM2 deficiency results in impaired osteoclast differentiation and osteoporotic features

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Paloneva, Juha, Mandelin, Jami, Kiialainen, Anna, Böhling, Tom, Prudlo, Johannes, Hakola, Panu, Haltia, Matti, Konttinen, Yrjö T. +1 more·2003·The Journal of Experimental Medicine

Abstract

Polycystic lipomembranous osteodysplasia with sclerosing leukoencephalopathy (PLOSL), Nasu-Hakola disease, is a globally distributed recessively inherited disease. PLOSL is characterized by cystic bone lesions, osteoporotic features, and loss of white matter in the brain leading to spontaneous bone fractures and profound presenile dementia. We have earlier characterized the molecular genetic background of PLOSL by identifying mutations in two genes, DAP12 and TREM2. DAP12 is a transmembrane adaptor protein that associates with the cell surface receptor TREM2. The DAP12-TREM2 complex is involved in the maturation of dendritic cells. To test a hypothesis that osteoclasts would be the cell type responsible for the bone pathogenesis in PLOSL, we analyzed the differentiation of peripheral blood mononuclear cells isolated from DAP12- and TREM2-deficient PLOSL patients into osteoclasts. Here we show that loss of function mutations in DAP12 and TREM2 result in an inefficient and delayed differentiation of osteoclasts with a remarkably reduced bone resorption capability in vitro. These results indicate an important role for DAP12-TREM2 signaling complex in the differentiation and function of osteoclasts.

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Authors
Paloneva, J., Mandelin, J., Kiialainen, A., Böhling, T., Prudlo, J., Hakola, P., Haltia, M., Konttinen, Y. T., & Peltonen, L.
Affiliations
  • 1Department of Molecular Medicine, National Public Health Institute, 00290 Helsinki, Finland
  • 2Institute of Biomedicine, Department of Anatomy
  • 4Department of Pathology, Helsinki University Central Hospital, 00014 University of Helsinki, Helsinki, Finland
  • Universitätsklinikum des Saarlandes (DE)
  • University of Eastern Finland (FI)
  • University of Helsinki (FI)
  • 7Department of Medicine/Invärtes medicin, 00029 Helsinki University Central Hospital and ORTON Orthopaedic Hospital of the Invalid Foundation, Helsinki, Finland
Corresponding author
Peltonen, Leena
Venue
The Journal of Experimental Medicine
Published
2003-08-18
Volume
198
Issue
4
Pages
669-675
ISSN
  • 0022-1007 (ISSN-L)
  • 1540-9538
OpenAlex
W2125075496
Cited by
318
References
25
Citations by year
2026: 16 · 2025: 19 · 2024: 24 · 2023: 18 · 2022: 14 · 2021: 10 · 2020: 12 · 2019: 12 · 2018: 14 · 2017: 10 · 2016: 16 · 2015: 11 · 2014: 13 · 2013: 13 · 2012: 12
FWCI
4.94
Type
journal article
Language
en
Open access
Licence
cc-by-nc-sa
Locations
  • The Journal of Experimental Medicine (publishedVersion)
  • PubMed Central (publishedVersion, cc-by-nc-sa)
  • PubMed (publishedVersion)
  • STM:n Hallinnonalan avoin julkaisuarkisto (Julkari) (submittedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bone Metabolism and Diseases
  • Life Sciences › Immunology and Microbiology › Immunology › Immunodeficiency and Autoimmune Disorders
  • Health Sciences › Medicine › Rheumatology › Osteomyelitis and Bone Disorders Research
Keywords
DAP12, TREM2, Nasu-Hakola disease, osteoclastogenesis, osteoporosis, bone resorption, loss-of-function mutations, dendritic cell maturation, peripheral blood mononuclear cells, cystic bone lesions, leukoencephalopathy
MeSH terms
Triggering Receptor Expressed on Myeloid Cells-1, Bone and Bones, Bone Resorption, Cathepsins, Cell Differentiation, Glycoproteins, Humans, Membrane Glycoproteins, Membrane Proteins, Monocytes, Mutation, Osteoclasts, Osteoporosis, Receptors, Immunologic, Syndrome, Signal Transduction, Receptors, Tumor Necrosis Factor, Receptors, Cytoplasmic and Nuclear, Cell Size, Adaptor Proteins, Signal Transducing, Osteoprotegerin, Cathepsin K

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