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Bifunctional Cx43 Mimic Peptide Grafted Hyaluronic Acid Hydrogels Inhibited Tumor Recurrence and Stimulated Wound Healing for Postsurgical Tumor Treatment
Advanced Functional Materials ( IF 19.0 ) Pub Date : 2020-09-16 , DOI: 10.1002/adfm.202004709
Dan He 1, 2 , Haiyan Li 1, 2
Affiliation  

Tumor recurrence and delayed wound healing after tumor excision pose great threats to patients. Bifunctional composite biomaterials prepared by simply mixing one component for inhibiting tumor recurrence and another component for enhancing wound healing usually ignores the physico‐chemical property integration of the two components. In this study, a bifunctional Cx43 mimic peptide, juxtamembrane 2 (JM2), is synthesized and grafted to hyaluronic acid (HA) to generate a homogeneous bifunctional injectable hydrogel system (HA‐JM2) for simultaneously inhibiting tumor recurrence and enhancing wound healing. Results demonstrate that JM2 can inhibit proliferation and induce apoptosis of tumor cells in vitro, thereby effectively inhibiting tumor growth in vivo. In addition, JM2 can recruit repairing cells into the wound site and control the ATP release from these cells, which creates a favorable inflammatory microenvironment for tissue regeneration. As the HA‐JM2 hydrogel can sustainably release JM2 to control host inflammation responses and stimulate angiogenesis, it can accelerate the wound healing in full‐thickness skin defects. When the HA‐JM2 hydrogel is applied to incompletely excisional tumor defects, it simultaneously shows inhibitory effects on tumor recurrence and stimulatory effects on skin wound healing. Taken together, the bifunctional HA‐JM2 injectable hydrogel has great application potential for postsurgical tumor treatment.

中文翻译:

双功能Cx43模仿肽接枝的透明质酸水凝胶抑制肿瘤复发和刺激的伤口愈合,用于术后肿瘤治疗。

肿瘤切除后的肿瘤复发和伤口愈合延迟对患者构成极大威胁。仅将一种抑制肿瘤复发的成分与另一种促进伤口愈合的成分混合而制成的双功能复合生物材料通常会忽略这两种成分的理化性质整合。在这项研究中,合成了一种双功能的Cx43模拟肽近膜膜2(JM2)并嫁接到透明质酸(HA)中,以生成均质的双功能可注射水凝胶系统(HA-JM2),以同时抑制肿瘤复发并增强伤口愈合。结果表明,JM2可以在体外抑制肿瘤细胞的增殖并诱导其凋亡,从而有效地抑制了体内肿瘤的生长。此外,JM2可以将修复细胞募集到伤口部位,并控制这些细胞中的ATP释放,从而为组织再生创造良好的炎症微环境。由于HA‐JM2水凝胶可以持续释放JM2以控制宿主炎症反应并刺激血管生成,因此它可以加速全层皮肤缺损中的伤口愈合。当将HA‐JM2水凝胶用于不完全切除的肿瘤缺损时,它同时显示出对肿瘤复发的抑制作用和对皮肤伤口愈合的刺激作用。综上所述,双功能HA‐JM2可注射水凝胶在术后肿瘤治疗中具有巨大的应用潜力。由于HA‐JM2水凝胶可以持续释放JM2以控制宿主炎症反应并刺激血管生成,因此它可以加速全层皮肤缺损中的伤口愈合。当将HA‐JM2水凝胶用于不完全切除的肿瘤缺损时,它同时显示出对肿瘤复发的抑制作用和对皮肤伤口愈合的刺激作用。综上所述,双功能HA‐JM2可注射水凝胶在术后肿瘤治疗中具有巨大的应用潜力。由于HA‐JM2水凝胶可以持续释放JM2以控制宿主炎症反应并刺激血管生成,因此它可以加速全层皮肤缺损中的伤口愈合。当将HA‐JM2水凝胶用于不完全切除的肿瘤缺损时,它同时显示出对肿瘤复发的抑制作用和对皮肤伤口愈合的刺激作用。综上所述,双功能HA‐JM2可注射水凝胶在术后肿瘤治疗中具有巨大的应用潜力。
更新日期:2020-09-16
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