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Rapid and Long-Term Glycemic Regulation with a Balanced Charged Immune-Evasive Hydrogel in T1DM Mice

机译:T1DM小鼠的快速长期血糖调节与平衡的带电免疫逃逸水凝胶

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摘要

Transplantation of encapsulated islets is a promising treatment for patients with type 1 diabetes mellitus. However, its long-term clinical therapeutic efficacy is still hindered by serious immune rejection from the host immunological responses to the implanted materials, known as foreign body reaction (FBR). In this work, an anti-biofouling balanced charged hydrogel is reported that can serve as an excellent immunoprotective material for islet transplantation therapy. It is found that the encapsulated islets can maintain their glucose-responsive and insulin-producing functions. Additionally, the hydrogel can effectively evade in vivo FBR after intraperitoneal implantation in an immunocompetent streptozotocin-induced diabetic mouse model. As a result, 100% of the mice rapidly recover to normoglycemia within 2 d and stably maintain for at least 150 d without any immunosuppression treatment. These findings shed light on the insulin independence and immunoisolation encapsulation strategy, which can overcome the barrier of islet transplantation and holds the potential to improve current clinical therapeutic efficacy.
机译:封装的胰岛移植是1型糖尿病患者的有前途的治疗方法。但是,其长期的临床治疗效果仍然受到宿主对植入材料的免疫反应的严重免疫排斥反应(称为异物反应(FBR))的阻碍。在这项工作中,据报道抗生物结垢的平衡带电水凝胶可作为胰岛移植治疗的极好免疫保护材料。发现包封的胰岛可以维持其葡萄糖反应性和胰岛素产生功能。此外,在有免疫能力的链脲佐菌素诱导的糖尿病小鼠模型中,腹膜内植入后,水凝胶可有效规避体内FBR。结果,100%的小鼠在没有任何免疫抑制治疗的情况下,在2 d内迅速恢复至血糖正常,并稳定维持了至少150 d。这些发现揭示了胰岛素独立性和免疫隔离包封策略,该策略可以克服胰岛移植的障碍,并具有改善当前临床治疗功效的潜力。

著录项

  • 来源
    《Advanced Functional Materials》 |2019年第19期|1900140.1-1900140.9|共9页
  • 作者单位

    Tianjin Univ, Sch Chem Engn & Technol, Dept Biochem Engn, Tianjin 300350, Peoples R China|Tianjin Univ, Sch Chem Engn & Technol, Frontier Sci Ctr Synthet Biol, Tianjin 300350, Peoples R China|Tianjin Univ, Sch Chem Engn & Technol, Key Lab Syst Bioengn MOE, Tianjin 300350, Peoples R China|Tianjin Univ, Qingdao Inst Marine Technol, Qingdao 266235, Shandong, Peoples R China;

    Tianjin Univ, Sch Chem Engn & Technol, Dept Biochem Engn, Tianjin 300350, Peoples R China|Tianjin Univ, Sch Chem Engn & Technol, Frontier Sci Ctr Synthet Biol, Tianjin 300350, Peoples R China|Tianjin Univ, Sch Chem Engn & Technol, Key Lab Syst Bioengn MOE, Tianjin 300350, Peoples R China|Tianjin Univ, Qingdao Inst Marine Technol, Qingdao 266235, Shandong, Peoples R China;

    Tianjin Univ, Sch Chem Engn & Technol, Dept Biochem Engn, Tianjin 300350, Peoples R China|Tianjin Univ, Sch Chem Engn & Technol, Frontier Sci Ctr Synthet Biol, Tianjin 300350, Peoples R China|Tianjin Univ, Sch Chem Engn & Technol, Key Lab Syst Bioengn MOE, Tianjin 300350, Peoples R China|Tianjin Univ, Qingdao Inst Marine Technol, Qingdao 266235, Shandong, Peoples R China;

    Tianjin Univ, Sch Chem Engn & Technol, Dept Biochem Engn, Tianjin 300350, Peoples R China|Tianjin Univ, Sch Chem Engn & Technol, Frontier Sci Ctr Synthet Biol, Tianjin 300350, Peoples R China|Tianjin Univ, Sch Chem Engn & Technol, Key Lab Syst Bioengn MOE, Tianjin 300350, Peoples R China|Tianjin Univ, Qingdao Inst Marine Technol, Qingdao 266235, Shandong, Peoples R China;

    Tianjin Univ, Sch Chem Engn & Technol, Dept Biochem Engn, Tianjin 300350, Peoples R China|Tianjin Univ, Sch Chem Engn & Technol, Frontier Sci Ctr Synthet Biol, Tianjin 300350, Peoples R China|Tianjin Univ, Sch Chem Engn & Technol, Key Lab Syst Bioengn MOE, Tianjin 300350, Peoples R China|Tianjin Univ, Qingdao Inst Marine Technol, Qingdao 266235, Shandong, Peoples R China;

    Tianjin Univ, Sch Chem Engn & Technol, Frontier Sci Ctr Synthet Biol, Tianjin 300350, Peoples R China|Tianjin Univ, Sch Chem Engn & Technol, Key Lab Syst Bioengn MOE, Tianjin 300350, Peoples R China|Tianjin Univ, Qingdao Inst Marine Technol, Qingdao 266235, Shandong, Peoples R China;

    Tianjin Univ, Sch Chem Engn & Technol, Dept Biochem Engn, Tianjin 300350, Peoples R China|Tianjin Univ, Sch Chem Engn & Technol, Frontier Sci Ctr Synthet Biol, Tianjin 300350, Peoples R China|Tianjin Univ, Sch Chem Engn & Technol, Key Lab Syst Bioengn MOE, Tianjin 300350, Peoples R China|Tianjin Univ, Qingdao Inst Marine Technol, Qingdao 266235, Shandong, Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    anti-biofouling; balanced charged hydrogel; immune evasion; islet transplantation; type 1 diabetes mellitus;

    机译:抗生物结垢;平衡带电水凝胶;免疫逃逸;胰岛移植;1型糖尿病;

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