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首页> 外文期刊>Platelets >White cell and platelet content affects the release of bioactive factors in different blood-derived scaffolds
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White cell and platelet content affects the release of bioactive factors in different blood-derived scaffolds

机译:白细胞和血小板含量影响不同血液衍生的支架中的生物活性因子的释放

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摘要

Platelet-derived factors are biomaterials that might accelerate healing process in oral, maxillofacial, and several other applications. Release of specific factors by platelet concentrates is critical to achieving a successful outcome. Here, we have shown that platelet-rich fibrin (PRF) clots were beneficial sources of leukocytes, which may directly affect the release of chemokines and growth factors. When compared with the standard leukocyte-PRF (L-PRF), the experimental low-force modified procedure [defined as advanced-PRF (A-PRF)] entrapped the same content of viable leukocytes, released a similar amount of inflammatory cytokines, but secreted 3-, 1.6-, 3-, and 1.2fold higher levels of Eotaxin, CCL5, platelet-derived growth factor (PDGF) and vascular endothelial growth factor (VEGF), respectively. A leukocyte-free scaffold, such as plasma rich in growth factors (PRGF), released only platelet-specific factors and, in particular, the F3 fraction, the richest in growth factors, secreted higher amount of CCL5 and PDGF compared to FI and F2 fractions. In conclusion, different procedures and leukocyte content affect cytokine, chemokines, and growth factor release from platelet derivatives, which may be helpful in different clinical settings.
机译:血小板衍生因子是一种生物材料,可在口腔、颌面部和其他一些应用中加速愈合过程。血小板浓缩物释放特定因子对获得成功结果至关重要。在这里,我们已经证明富含血小板的纤维蛋白(PRF)凝块是白细胞的有益来源,这可能直接影响趋化因子和生长因子的释放。与标准白细胞PRF(L-PRF)相比,实验性低强度改良程序[定义为高级PRF(A-PRF)]截留了相同含量的活白细胞,释放了相似数量的炎性细胞因子,但分泌的Eotaxin、CCL5、血小板衍生生长因子(PDGF)和血管内皮生长因子(VEGF)水平分别高出3倍、1.6倍、3倍和1.2倍,分别地无白细胞支架,如富含生长因子(PRGF)的血浆,只释放血小板特异性因子,尤其是生长因子含量最高的F3组分,与FI和F2组分相比,分泌更多CCL5和PDGF。总之,不同的程序和白细胞含量会影响血小板衍生物的细胞因子、趋化因子和生长因子释放,这可能在不同的临床环境中有所帮助。

著录项

  • 来源
    《Platelets》 |2018年第5期|共5页
  • 作者单位

    Federico II Univ Naples Dept Translat Med Via Pansini 5 I-80131 Naples Italy;

    Federico II Univ Naples Dept Translat Med Via Pansini 5 I-80131 Naples Italy;

    Federico II Univ Naples Dept Neurosci Reprod Sci &

    Odontostomatol Naples Italy;

    Federico II Univ Naples Dept Translat Med Via Pansini 5 I-80131 Naples Italy;

    Federico II Univ Naples Dept Translat Med Via Pansini 5 I-80131 Naples Italy;

    Federico II Univ Naples Dept Translat Med Via Pansini 5 I-80131 Naples Italy;

    Federico II Univ Naples Dept Translat Med Via Pansini 5 I-80131 Naples Italy;

    Federico II Univ Naples Dept Neurosci Reprod Sci &

    Odontostomatol Naples Italy;

    Federico II Univ Naples Dept Translat Med Via Pansini 5 I-80131 Naples Italy;

    Federico II Univ Naples Dept Neurosci Reprod Sci &

    Odontostomatol Naples Italy;

    Federico II Univ Naples Dept Translat Med Via Pansini 5 I-80131 Naples Italy;

    Federico II Univ Naples Dept Neurosci Reprod Sci &

    Odontostomatol Naples Italy;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 基础医学;
  • 关键词

    Chemokines; growth factors; leukocytes; platelet products; tissue regeneration;

    机译:趋化因子;生长因子;白细胞;血小板产品;组织再生;

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