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    Öğe
    Antiinflammatory photodynamic therapy potential of polyoxyethylene-substituted perylene diimide, nitrocatechol, and azo dye
    (Tubitak Scientific & Technological Research Council Turkey, 2021) Hakli, Ozgul; Ocakoglu, Kasim; Ayaz, Furkan
    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.
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    Öğe
    Photodynamic Anti-Inflammatory Activity of Porphyrin Derivative on In-Vitro Activated Macrophages
    (Springer, 2023) Hakli, Ozgul; Ocakoglu, Kasim; Ayaz, Furkan
    Porphyrin derivatives have been known for their photodynamic therapy (PDT) application potential. In the present work, we have studied an asymmetric tetraphenyl substituted porphyrin derivative synthesized previously. Although traditional PDT applications focus on antibacterial and anti-cancer activities of the drug candidates, these compounds may have functional properties at subtoxic concentrations due to the chemically active groups that they carry. In this study, we aimed to investigate the anti-inflammatory PDT potential of this porphyrin derivative. For this purpose, mammalian macrophage cells were used. Trypan blue staining was done to confirm that this compound was effective at non-toxic concentrations. Moreover, TNF and IL6 ELISAs were done to the supernatants of the stimulated cells. Xenon light exposure was done to activate the porphyrin derivative. Our results suggest that this derivative had differential effects on these cytokine production levels by activated macrophages. These effects are light activation-dependent which makes this derivative a viable option for anti-inflammatory PDT applications. Moreover, it did not exert any cytotoxic effect at concentration used both in the dark and under light conditions.