Carletto Bruna, Berton Juliana, Ferreira Tamara Nascimento, Dalmolin Luciana Facco, Paludo Katia Sabrina, Mainardes Rubiana Mara, Farago Paulo Vitor, Favero Giovani Marino
Postgraduate Program in Pharmaceutical Sciences, Ponta Grossa State University/Midwestern State University, Brazil.
Department of Structural, Molecular and Genetic Biology, Ponta Grossa State University, Brazil.
Colloids Surf B Biointerfaces. 2016 Aug 1;144:65-72. doi: 10.1016/j.colsurfb.2016.04.001. Epub 2016 Apr 2.
In this study, resveratrol-loaded nanocapsules were developed and its antitumor activity tested on a melanoma mice model. These nanocapsules were spherically-shaped and presented suitable size, negative charge and high encapsulation efficiency for their use as a modified-release system of resveratrol. Nanoencapsulation leads to the drug amorphization. Resveratrol-loaded nanoparticles reduced cell viability of murine melanoma cells. There was a decrease in tumor volume, an increase in the necrotic area and inflammatory infiltrate of melanoma when resveratrol-loaded nanocapsules were compared to free resveratrol in treated mice. Nanoencapsulation of resveratrol also prevented metastasis and pulmonary hemorrhage. This modified-release technology containing resveratrol can be used as a feasible approach in order to inhibit murine melanoma tumor growth.
在本研究中,制备了负载白藜芦醇的纳米胶囊,并在黑色素瘤小鼠模型上测试了其抗肿瘤活性。这些纳米胶囊呈球形,具有合适的尺寸、负电荷以及较高的包封效率,适合用作白藜芦醇的缓释系统。纳米包封导致药物非晶化。负载白藜芦醇的纳米颗粒降低了小鼠黑色素瘤细胞的活力。与经处理小鼠中游离白藜芦醇相比,负载白藜芦醇的纳米胶囊使黑色素瘤的肿瘤体积减小、坏死面积增加以及炎症浸润增多。白藜芦醇的纳米包封还可防止转移和肺出血。这种含白藜芦醇的缓释技术可作为抑制小鼠黑色素瘤肿瘤生长的一种可行方法。