去细胞化肝脏生物支架的应用进展

Updates of application of decellularized liver bioscaffold

  • 摘要: 肝脏替代治疗是目前终末期肝病最有效的治疗措施,而去细胞化肝脏生物支架拓宽了肝脏替代治疗的研究领域。目前普遍的支架制备过程是在一定的物理条件下,经灌注设备将化学试剂(去垢剂、消化酶等)注入肝脏自身的脉管结构中,达到去除细胞成分,保留支架内ECM和超微脉管结构的目的。再将种子细胞注入到去细胞化肝脏生物支架,获得再细胞化肝脏,模拟机体内肝脏生物环境进行体外或体内培养,观察种子细胞附着情况,检测肝脏代谢功能,评估肝脏替代效果。目前,种子细胞的选取、再细胞化流程、再细胞化肝脏移植等问题仍处于探索阶段。笔者围绕去细胞化肝脏生物支架的制备与评价、检测和应用作一综述,为进一步应用于实验研究和临床实践提供参考。

     

    Abstract:  Replacement therapy is the most effective method for the treatment of endstage liver disease, and decellularized liver bioscaffold broadens the research field of the replacement therapy. The present liver bioscaffold preparation is to perfuse chemical reagents (detergents, enzymes, et al) into the vascular structure of the liver under certain physical conditions, so as to remove cellular components and retain extracellular matrix and microvascular structure. Cells were reseeded into the decellularized liver scaffold to obtain the recellularized liver, which can be cultured and evaluated in vitro or in vivo by observing the adhesion of seeded cells, detecting the synthesis and secretion of the recellularized liver. Currently, the selection of seed cells, recellularization protocol and recellularized liver transplantation are still under exploration. In this review, the preparation, evaluation, detection and application of the decellularized liver bioscaffold are introduced for the further experimental study and clinical research.

     

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