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Updated: Jun 5, 2026
Routine Screening Method for Microparticles in Platelet Transfusions
Published on: January 31, 2018
Plasma platelet-derived microparticles in patients with connective tissue diseases
Chinami Oyabu1, Akio Morinobu, Daisuke Sugiyama
1Department of Clinical Pathology and Immunology, Kobe University Graduate School of Medicine, Kusunoki-cho, 650-0017, Kobe, Japan.
Objective:
To clarify the role of platelet-derived microparticles (PDMP), which are small vesicles with thrombotic and immunological properties, in systemic lupus erythematosus (SLE), systemic sclerosis (SSc), dermatomyositis/polymyositis (PM/DM), and mixed connective tissue disease (MCTD).
Methods:
Plasma levels of PDMP were measured by ELISA, and compared among patients with one of the 4 diseases. Association of PDMP levels with clinical characteristics and medication of the patients was also examined.
Results:
PDMP levels were higher in patients with MCTD and SSc than in controls. Multiple linear regression analysis revealed that patients with Raynaud's phenomenon (RP) showed higher PDMP levels than those without. PDMP levels in individual patients did not fluctuate significantly over several months.
Conclusion:
PDMP level is associated with MCTD, SSc, and RP, and could be a novel marker for RP.
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