Production of Lymphotoxin, a Bone-Resorbing Cytokine, by Cultured Human Myeloma Cells

Authors:
  • IGI. Ross Garrett
    I. Ross Garrett
  • BDBrian G.M. Durie
    Brian G.M. Durie
  • GNGlenn E. Nedwin
    Glenn E. Nedwin
  • AGAlison Gillespie
    Alison Gillespie
  • TBTimothy Bringman
    Timothy Bringman
  • MSMassimo Sabatini
    Massimo Sabatini
  • DBDonald R. Bertolini
    Donald R. Bertolini
  • GMGregory R. Mundy
    Gregory R. Mundy

Abstract
Myeloma cells destroy bone by producing an osteoclast-stimulating factor that has chemical and biological characteristics similar to the bone-resorbing activity present in the supernatants of activated leukocyte cultures. Recently, a number of bone-resorbing leukocyte cytokines have been identified, including interleukin-1, lymphotoxin, and tumor necrosis factor. We have examined the products of human myeloma cells for the presence of these bone-resorbing cytokines.

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