Photodynamic therapy (PDT) applications enable light-controlled activation of drug candidates instead of their constitutive activities to prevent undesired side effects associated with their constant activities. A specific wavelength of light is utilized to enable electron mobility in the chemical structure, which results in differential activities that may alter cell viability and cellular functions. Canonical photodynamic therapy applications mostly focus on cytotoxicity-based antimicrobial and anticancer properties of the PDT agents. In this study, we focused on subtoxic concentrations of three different molecules containing polyoxyethylene group and examined their antiinflammatory activities on stimulated mammalian macrophages. Stimulated macrophages produce proinflammatory cytokines TNF and IL6. In the presence of a light source, our PDT agents were activated for 5 and 10 min during their application to the macrophages. Based on the ELISA results, the compounds had anti-inflammatory PDT activities. Trypan blue staining results suggest that these derivatives exerted their activities without leading to cytotoxicity. Our results suggest noncanonical PDT applications of these derivatives that can alter cellular activities without leading to cell death.
光动力疗法(PDT)应用可通过光控激活候选药物,而不是激活它们的组成活性,以防止因其持续活性而产生不良副作用。利用特定波长的光使电子在
化学结构中移动,从而产生不同的活性,改变细胞活力和细胞功能。典型的光动力疗法应用主要集中在基于细胞毒性的光动力疗法制剂的抗菌和抗癌特性上。在本研究中,我们重点研究了含有聚氧
乙烯基团的三种不同分子的亚毒性浓度,并考察了它们对受刺激的哺乳动物巨噬细胞的抗炎活性。受刺激的巨噬细胞会产生促炎细胞因子 TNF 和 IL6。在有光源的情况下,我们的 PDT 药剂分别在巨噬细胞上激活 5 分钟和 10 分钟。根据酶联免疫吸附试验(ELI
SA)的结果,这些化合物具有抗炎的光致导发光活性。胰蓝染色结果表明,这些衍
生物在发挥其活性的同时不会导致细胞毒性。我们的研究结果表明,这些衍
生物可用于非规范的光致发射疗法,在改变细胞活性的同时不会导致
细胞死亡。