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A New Treatment Modality for Rheumatoid Arthritis: Combined Photothermal and Photodynamic Therapy Using Cu7.2S4 Nanoparticles
Advanced Healthcare Materials ( IF 10.0 ) Pub Date : 2018-04-26 , DOI: 10.1002/adhm.201800013
Yao Lu 1, 2 , Lihua Li 1, 3 , Zefeng Lin 1 , Liping Wang 3 , Lijun Lin 2 , Mei Li 1 , Yu Zhang 1 , Qingshui Yin 1 , Qi Li 2 , Hong Xia 1
Affiliation  

Rheumatoid arthritis (RA) is a worldwide inflammatory disease that seriously threatens human health and needs more effective treatment approaches. Near infrared (NIR) light can efficiently penetrate inflamed joints affected by RA, so phototherapy, including photothermal therapy (PTT) and photodynamic therapy (PDT), may provide new opportunities. In this work, the unique Cu7.2S4 nanoparticles (NPs) are prepared for RA treatment enlightened by the fact that copper (Cu)‐based nanomaterials can simultaneously serve as PTT agents and photosensitizers (for PDT). Meanwhile, Cu can promote ostogenesis and chondrogenesis. The Cu7.2S4 NPs combined with NIR (808 nm, 1 W cm−2) irradiation not only achieve better bone preservation, including higher bone mineral density (BMD) and bone volume/total volume, but also inhibit inflamed synovial invasion, cartilage erosion, and expression of proinflammatory cytokines in vivo. Moreover, the Cu7.2S4 NPs can effectively kill clinical pathogenic Staphylococcus aureus and Escherichia coli to prevent bacterial infection during intra‐articular injection. Therefore, the combined PTT and PDT using the multifunctional Cu7.2S4 NPs could be a novel RA treatment modality with full potential.

中文翻译:

类风湿关节炎的一种新的治疗方式:结合使用Cu7.2S4纳米粒子的光热和光动力疗法。

类风湿关节炎(RA)是一种全球性的炎症性疾病,严重威胁着人类的健康,需要更有效的治疗方法。近红外(NIR)光可以有效穿透受RA影响的发炎关节,因此包括光热疗法(PTT)和光动力疗法(PDT)在内的光疗可能会提供新的机会。在这项工作中,独特的Cu 7.2 S 4纳米颗粒(NPs)被制备用于RA治疗,这是因为基于铜(Cu)的纳米材料可以同时用作PTT剂和光敏剂(用于PDT)。同时,铜可以促进成骨和软骨形成。Cu 7.2 S 4 NP与NIR(808 nm,1 W cm -2)结合)照射不仅可以实现更好的骨骼保存,包括更高的骨矿物质密度(BMD)和骨骼体积/总体积,而且还可以抑制发炎的滑膜浸润,软骨侵蚀以及体内促炎性细胞因子的表达。此外,Cu 7.2 S 4 NP可以有效杀死临床致病性金黄色葡萄球菌大肠杆菌,以防止在关节腔内注射期间细菌感染。因此,使用多功能Cu 7.2 S 4 NPs组合PTT和PDT可能是具有潜力的新型RA治疗方法。
更新日期:2018-04-26
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