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Interaction of Platelet-Derived Microparticles with a Human B-Lymphoblast Cell Line: A Clue for the Immunologic

Fatemah Yari1, Mahboubeh Motefaker1, Mahin Nikougoftar1

  • 1Iranian Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran.

Transfusion Medicine and Hemotherapy : Offizielles Organ Der Deutschen Gesellschaft Fur Transfusionsmedizin Und Immunhamatologie
|March 30, 2018
PubMed
Abstract

Insights

Platelet-derived microparticles (Plt-MPs) activate B-lymphoblast cells, increasing immunoglobulin production and key activation markers. This suggests Plt-MPs could be valuable in monoclonal antibody technology.

Area of Science:

  • Immunology
  • Hematology
  • Cell Biology

Background:

  • Platelets are crucial for hemostasis and immune responses.
  • The immunostimulatory role of platelet-derived microparticles (Plt-MPs) is not well understood.
  • Daudi cells, a B-lymphoblast line, were used as a model for peripheral blood B lymphocytes.

Purpose of the Study:

  • To investigate the immunostimulatory effects of Plt-MPs on B-lymphoblast cells.
  • To evaluate the impact of Plt-MPs on immunoglobulin production and B-cell activation markers.

Main Methods:

  • Platelet-derived microparticles (Plt-MPs) were isolated from platelet concentrate.
  • Daudi cells were co-cultured with Plt-MPs for 5 days.
  • Immunoglobulin production and cell surface markers (CD86, CD27, IgD) were analyzed.

Main Results:

  • Plt-MPs significantly increased IgG production and CD27/CD86 expression on Daudi cells.
  • IgD levels decreased following Plt-MP treatment.
  • The observed effects were dose- and time-dependent, showing significant differences from controls.

Conclusions:

  • Platelet-derived microparticles can induce activation and differentiation in immortalized B-cells.
  • Plt-MPs show potential as activators in human monoclonal antibody technology.
Keywords:
CD27CD86DaudiIgGPlatelet microparticles

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