Chinese Journal Of Clinical Anatomy ›› 2017, Vol. 35 ›› Issue (3): 271-275.doi: 10.13418/j.issn.1001-165x.2017.03.008

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The bio-reactivity analysis of  HSNGLPL peptide grafted-polyurethane

XIAO Jiang-wei1, SHI Dan-dan1, ZHU Rong1, GU Rui-cai1, WU Gang2, LIAO Hua1   

  1. 1. Department of Anatomy, Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering,Southern Medical University, Guangzhou 510515 China; 2. School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China
  • Received:2016-11-21 Online:2017-05-25 Published:2017-06-23

Abstract:

Objective To study the biocompatibility of HSNGLPL peptide grafted- polyurethane in vivo and in vitro. Methods HSNGLPL peptide solution, HSNGLPL peptide grafted polyurethane with different concentration, and BDO- PU are injected or implanted into tibialis anterior muscle of B6 mice, or co-cultured with C2C12 cell in vitro. CCK8, H&E, immunofleorecence was used to explore the material-induced inflammatory and immuno-reactivity in vitro and in vivo. Results HSNGLPL peptide grafted-polyurethane is biocompatible in vivo. BDO-PU induced a conspicuous monocytes/macrophages infiltration and myofiber degeneration, the inflammatory invasion and myofiber necrosis are mainly detected in the site around the implants. In contrast, peptide grafted-PUs induced intramuscular inflammation is more complex and sustained more than 56d. The number of apoptotic macrophages in muscle containing peptide-PU significantly lower than that containing BDO-PU. Conclusions HSNGLPL peptide grafted PUs triggers the more severe inflammation response than that of BDO-PU, and eventually change biocompatibility of PU material in vitro and in vivo.

Key words: Polyurethanes,  HSNGLPL peptide; Inflammation;   , Immunity;   , Infiltration