The role of gp130-mediated signals in osteoclast development: regulation of interleukin 11 production by osteoblasts and distribution of its receptor in bone marrow cultures

Autor: Hong Zhou, Thomas J. Martin, Mikiyoshi Saito, T. Tamura, Nobuyuki Udagawa, Tatsuo Suda, Douglas J. Hilton, E. Romas, Kong Wah Ng, Tetsuya Taga
Rok vydání: 1996
Předmět:
Male
Time Factors
Transcription
Genetic
Parathyroid hormone
Polymerase Chain Reaction
Mice
Bone Marrow
Cytokine Receptor gp130
Receptors
Interleukin-11
Immunology and Allergy
Calcitonin receptor
Cells
Cultured
In Situ Hybridization
Membrane Glycoproteins
biology
Antibodies
Monoclonal
Interleukin
Articles
Interleukin-11
Recombinant Proteins
medicine.anatomical_structure
Parathyroid Hormone
Cytokines
Signal Transduction
musculoskeletal diseases
Molecular Sequence Data
Immunology
Alpha (ethology)
Bone Marrow Cells
Dinoprostone
Calcitriol
Antigens
CD
Osteoclast
medicine
Animals
Humans
Interleukin-11 Receptor alpha Subunit
RNA
Messenger
Interleukin 6
Interleukin 4
DNA Primers
Osteoblasts
Base Sequence
Tumor Necrosis Factor-alpha
Receptors
Interleukin
Glycoprotein 130
Molecular biology
Coculture Techniques
Rats
Mice
Inbred C57BL
Kinetics
Animals
Newborn
biology.protein
Interleukin-1
Zdroj: The Journal of Experimental Medicine
ISSN: 1540-9538
0022-1007
Popis: Interleukin (IL)-11 is a multifunctional cytokine whose role in osteoclast development has not been fully elucidated. We examined IL-11 production by primary osteoblasts and the effects of rat monoclonal anti-mouse glycoprotein 130 (gp130) antibody on osteoclast formation, using a coculture of mouse osteoblasts and bone marrow cells. IL-1, TNF alpha, PGE2, parathyroid hormone (PTH) and 1 alpha,25-dihydroxyvitamin D3 (1 alpha,25(OH)2D3) similarly induced production of IL-11 by osteoblasts, but IL-6, IL-4, and TGF beta did not. Primary osteoblasts constitutively expressed mRNAs for both IL-11 receptor (IL-11R alpha) and gp130. Osteotropic factors did not modulate IL-11R alpha mRNA at 24 h, but steady-state gp130 mRNA expression in osteoblasts was upregulated by 1 alpha,25(OH)2D3, PTH, or IL-1. In cocultures, the formation of multinucleated osteoclast-like cells (OCLs) in response to IL-11, or IL-6 together with its soluble IL-6 receptor was dose-dependently inhibited by rat monoclonal anti-mouse gp130 antibody. Furthermore, adding anti-gp130 antibody abolished OCL formation induced by IL-1, and partially inhibited OCL formation induced by PGE2, PTH, or 1 alpha,25(OH)2D3. During osteoclast formation in marrow cultures, a sequential relationship existed between the expression of calcitonin receptor mRNA and IL-11R alpha mRNA. Osteoblasts as well as OCLs expressed transcripts for IL-11R alpha, as indicated by RT-PCR analysis and in situ hybridization. These results suggest a central role of gp130-coupled cytokines, especially IL-11, in osteoclast development. Since osteoblasts and mature osteoclasts expressed IL-11R alpha mRNA, both bone-forming and bone-resorbing cells are potential targets of IL-11.
Databáze: OpenAIRE
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