Biopolymer Molecular Weight Can Modulate the Wound Healing Efficacy of Multivalent Sonic Hedgehog-Hyaluronic Acid Conjugates.

Biopolymer Molecular Weight Can Modulate the Wound Healing Efficacy of Multivalent Sonic Hedgehog-Hyaluronic Acid Conjugates.
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DOI:
10.1021/acs.biomac.7b00553
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发表时间:
2017-08-14
期刊:
影响因子:
6.2
通讯作者:
Jackson WM
Jackson WM
中科院分区:
化学2区
文献类型:
--
作者:
Holstlaw TA;Mahomed M;Brier LW;Young DM;Boudreau NJ;Jackson WM

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临床上需要新的治疗剂来改善慢性受损伤口的愈合。因此,我们研究了生物聚合物缀合如何用于改善组织再生的关键生长因子的伤口愈合性能:Sonic hedgehog(Shh)。我们使用具有两种不同分子量(MW)的透明质酸(HyA)产生了两种多价Shh缀合物(mvShh),其在体外表现出等效的效力和蛋白水解保护。使用db/db糖尿病小鼠,我们表明,与用较大MW HyA制备的mvShh相比,用较小HyA MW制备的mvShh导致更快速和稳健的新血管形成。此外,与未缀合的Shh相比,较小的mvShh缀合物导致更快的伤口消退。这项研究是第一次显示多价蛋白质-聚合物缀合物的伤口愈合功效如何对聚合物MW敏感,并且我们的研究结果表明,该参数可用于增强生长因子缀合物的功效。
There is a clinical need for new therapeutics to improve healing of chronic impaired wounds. Thus, we investigated how biopolymer conjugation could be used to improve the wound healing performance of a key growth factor for tissue regeneration: Sonic hedgehog (Shh). We generated two multivalent Shh conjugates (mvShh) using hyaluronic acid (HyA) with two different molecular weights (MWs), which exhibited equivalent potency and proteolytic protection in vitro. Using db/db diabetic mice, we showed that mvShh made with smaller HyA MW resulted in more rapid and robust neovascularization compared to mvShh made with larger MW HyA. Further, smaller mvShh conjugates resulted in faster wound resolution compared to the unconjugated Shh. This study is the first to show how the wound healing efficacy of multivalent protein-polymer conjugates is sensitive to the polymer MW, and our findings suggest that this parameter could be used to enhance the efficacy of growth factor conjugates.
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