Diclofenac prodrugs nanoparticles: An alternative and efficient treatment for rheumatoid arthritis?
作者:Saadat Hussain、Mujeeb Ur-Rehman、Aqsa Arif、Catherine Cailleau、Cynthia Gillet、Rudaba Saleem、Hira Noor、Farwa Naqvi、Almas Jabeen、Atta-ur-Rahman、M. Iqbal Choudhary、Elias Fattal、Nicolas Tsapis
DOI:10.1016/j.ijpharm.2023.123227
日期:2023.8
potential values from −30 to −50 mV. In addition, they were stable upon storage at 4 °C up to 30–35 days. The encapsulation efficiency of the prodrug was above 90 % independently of the aliphatic chain length grafted. Nanoparticles did not induce any toxicity on LPS-activated THP-1 cells up to a concentration of 100 μg/mL (equivalent diclofenac) whereas diclofenac sodium salt IC50 was around 20 μg/mL. Following
我们通过酯键将脂肪链(C10、C12、C16 和 C18)接枝到双氯芬酸上,合成了新的双氯芬酸脂质前药。通过HR-MS确定了它们的分子式,并通过FTIR和NMR光谱确定了酯键的形成。采用乳液蒸发法并以 DSPE-PEG 2000作为唯一赋形剂成功配制了不同前药的纳米颗粒。所有纳米颗粒均为球形,尺寸在 110 至 150 nm 之间,PdI ≤ 0.2,负 Zeta 电位值在 -30 至 -50 mV 之间。此外,它们在 4°C 下储存长达 30-35 天保持稳定。前药的包封效率高于90%,与接枝的脂肪链长度无关。纳米颗粒在浓度高达 100 μg/mL(等效双氯芬酸)时不会对 LPS 激活的 THP-1 细胞产生任何毒性,而双氯芬酸钠盐 IC 50 约为 20 μg/ mL。将纳米粒子与 LPS 激活的 THP-1 细胞一起孵育后,观察到与标准双氯芬酸钠相当的 TNF-α 剂量依赖性抑制。根