Elevated levels of shed syndecan-1 correlate with tumour mass and decreased matrix metalloproteinase-9 activity in the serum of patients with multiple myeloma

Academic Article


  • Sera from 20 myeloma patients and 12 normal controls were analysed for the presence of syndecan-1 and matrix metalloproteinase-9 (MMP-9). The level of syndecan-1 in the serum was elevated in 7/20 (35%) myeloma patients whilst 6/19 patients (31%) had decreased serum MMP-9 activity. The presence of increased syndecan-1 was associated with decreased serum MMP-9. Both elevated syndecan-1 and decreased MMP-9 were associated with higher marrow plasmacytosis, serum beta-2 microglobulin and paraprotein levels. These data provide evidence that the syndecan-1 ectodomain is shed in vivo. Quantitation of serum syndecan-1 may be a useful measure of tumour mass and may have important implications for myeloma biology.
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    Digital Object Identifier (doi)

    Author List

  • Dhodapkar MV; Kelly T; Theus A; Athota AB; Barlogie B; Sanderson RD
  • Start Page

  • 368
  • End Page

  • 371
  • Volume

  • 99
  • Issue

  • 2