Balogh Barbara, Pető Ágota, Haimhoffer Ádám, Sinka Dávid, Kósa Dóra, Fehér Pálma, Ujhelyi Zoltán, Argenziano Monica, Cavalli Roberta, Bácskay Ildikó
Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Nagyerdei Körút 98, H-4032 Debrecen, Hungary.
Doctoral School of Pharmaceutical Sciences, University of Debrecen, Nagyerdei Körút 98, H-4032 Debrecen, Hungary.
Gels. 2024 Oct 22;10(11):675. doi: 10.3390/gels10110675.
Psoriasis is an immune-mediated skin condition. There are many therapeutic options for its treatment; however, none of them is completely effective. Tapinarof is a promising new active substance; it was recently approved by the FDA for the treatment of psoriasis. The aim of our study was to prepare topical nanoformulations of the active substance to improve its bioavailability and therapeutic effect. The biocompatibility investigation of the formulations was carried out by MTT assay, and the size distribution of the preparations was investigated by DLS. In parallel, the rheological properties and the texture were examined, and the in vitro release of tapinarof was assessed by the Franz diffusion method. An in vitro wound healing assay was also carried out to study the drug's properties. Our results show that the preparations were safe on HaCaT cells. The particle size of the formulations was proven to be in the nanoscale range. In the in vitro release studies, nanogel II. showed greater release of the active substance. According to the wound healing assay, incorporation of the drug into nanoformulations increases the antiproliferative and antimigration activity of the drug. Overall, nanoformulations of tapinarof were successfully prepared, and our results suggest that they can be a useful addition to the current therapeutic practice of psoriasis.
银屑病是一种免疫介导的皮肤病。其治疗有多种选择;然而,没有一种是完全有效的。他扎罗汀是一种有前景的新型活性物质;它最近被美国食品药品监督管理局批准用于治疗银屑病。我们研究的目的是制备该活性物质的局部纳米制剂,以提高其生物利用度和治疗效果。通过MTT法进行制剂的生物相容性研究,通过动态光散射法研究制剂的粒径分布。同时,检测流变学性质和质地,并通过弗兰兹扩散法评估他扎罗汀的体外释放。还进行了体外伤口愈合试验以研究药物的性质。我们的结果表明这些制剂对HaCaT细胞是安全的。制剂的粒径被证明在纳米范围内。在体外释放研究中,纳米凝胶II显示出活性物质的更大释放。根据伤口愈合试验,将药物掺入纳米制剂中可增加药物的抗增殖和抗迁移活性。总体而言,成功制备了他扎罗汀的纳米制剂,我们的结果表明它们可以成为当前银屑病治疗实践的有益补充。