College of Chemistry and Environmental Science, Hebei University, Baoding City, Hebei Province 071002, China.
Warrenmore Biotechnology Ltd. Handan, 056002, China.
Colloids Surf B Biointerfaces. 2022 Oct;218:112747. doi: 10.1016/j.colsurfb.2022.112747. Epub 2022 Aug 4.
Thermo-sensitive hydrogels change their properties through phase transition, which could be used to regulate various behaviors by changing the temperature. In this study, degradable hydrogels with thermo-response were designed by reaction of oxidized carboxymethyl cellulose (CMC-CHO) with functional P(NIPAM-co-AH). The hydrogels showed biocompatibility and thermo-response with lower critical solution temperature (LCST) regulated by weight ratio of P(NIPAM-co-AH)/CMC-CHO. The photo-thermal property of gold nanorod was triggered by the near-infrared (NIR) to enhance the DOX release for in vivo anti-tumor therapy of model mice. The results showed good biocompatibility and biodegradability of the hydrogel both in vitro and in vivo, and the DOX with hydrogel loading reduced the toxicity through sustained release behavior. The anti-tumor performance further enhanced with NIR triggered drug release regulated by photo-thermal property. In conclusion, the injectable P(NIPAM-co-AH)/CMC-CHO based self-healing hydrogels could act as promising drug delivery vehicle for potential localized anti-tumor therapy.
温敏水凝胶通过相转变改变其性质,可以通过改变温度来调节各种行为。在这项研究中,通过氧化羧甲基纤维素(CMC-CHO)与功能 P(NIPAM-co-AH)的反应,设计了具有温敏性的可降解水凝胶。水凝胶表现出生物相容性和温敏性,具有较低的临界溶液温度(LCST),由 P(NIPAM-co-AH)/CMC-CHO 的重量比调节。金纳米棒的光热特性被近红外(NIR)触发,以增强模型小鼠体内抗肿瘤治疗的 DOX 释放。结果表明,水凝胶在体外和体内均具有良好的生物相容性和生物降解性,载有 DOX 的水凝胶通过持续释放行为降低了毒性。光热特性调节的 NIR 触发药物释放进一步增强了抗肿瘤性能。总之,基于可注射的 P(NIPAM-co-AH)/CMC-CHO 的自修复水凝胶可以作为有前途的药物输送载体,用于潜在的局部抗肿瘤治疗。
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