Platelet Separation From Whole Blood in an Aqueous Two-Phase System With Water-Soluble Polymers

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Platelet-rich plasma (PRP) stimulates tissue healing and centrifugation is the only method for PRP preparation. The purpose of the present study was to develop a method to separate platelets without centrifugation. We used 16 polymers of different chemical characteristics and mixed each polymer with fresh whole blood containing anticoagulant citrate-dextrose. Then, we observed blood cell separation. Focusing on the effective polymers and comparing our method with the conventional centrifugation method, we examined platelet recovery rate and P-selectin expression, which represents platelet activation. Poly-<sc><font size = "-2">L</font></sc>-glutamic acid (PGA) and poly-<sc><font size = "-2">L</font></sc>-aspartic acid (PAA) separated platelets efficiently; however, these polymers activated platelets. On the contrary, poly (2-methacryloyloxyethyl phosphorylcholine-co-<i>n</i>-butyl methacrylate) (PMB), which has phosphorylcholine residues mimicking a cellular membrane molecule, separated platelets moderately and the PMB-separated platelets were nearly inactive compared to the separation with the ordinary centrifugation and PGA. Conclusively, the present experiments demonstrated that without centrifugation platelets can be separated from whole blood with some water-soluble polymers, such as PGA, PAA, and PMB, and that PMB has an advantage not to activate platelets.<br>

収録刊行物

  • Journal of pharmacological sciences  

    Journal of pharmacological sciences 101(1), 91-97, 2006-05-20 

    The Japanese Pharmacological Society

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各種コード

  • NII論文ID(NAID)
    10018237509
  • NII書誌ID(NCID)
    AA11806667
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    13478613
  • NDL 記事登録ID
    7915805
  • NDL 雑誌分類
    ZS51(科学技術--薬学)
  • NDL 請求記号
    Z53-D199
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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