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Open AccessArticle

Drug Delivery System for Emodin Based on Mesoporous Silica SBA-15

1
Institute for Biological Research “Siniša Stanković”, University of Belgrade; Bulevar Despota Stefana 142, 11060 Belgrade, Serbia
2
Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, D-06120 Halle (Saale), Germany
*
Author to whom correspondence should be addressed.
Nanomaterials 2018, 8(5), 322; https://doi.org/10.3390/nano8050322
Received: 7 March 2018 / Revised: 4 May 2018 / Accepted: 7 May 2018 / Published: 12 May 2018
(This article belongs to the Special Issue Pharmaceutical Nanotechnology)
In this study mesoporous silica SBA-15 was evaluated as a vehicle for the transport of cytotoxic natural product emodin (EO). SBA-15 was loaded with different quantities of EO (SBA-15|EO1–SBA-15|EO5: 8–36%) and characterized by traditional methods. Several parameters (stabilities) and the in vitro behavior on tumor cell lines (melanoma A375, B16 and B16F10) were investigated. SBA-15 suppresses EO release in extremely acidic milieu, pointing out that EO will not be discharged in the stomach. Furthermore, SBA-15 protects EO from photodecomposition. In vitro studies showed a dose dependent decrease of cellular viability which is directly correlated with an increasing amount of EO in SBA-15 for up to 27% of EO, while a constant activity for 32% and 36% of EO in SBA-15 was observed. Additionally, SBA-15 loaded with EO (SBA-15|EO3) does not disturb viability of peritoneal macrophages. SBA-15|EO3 causes inhibition of tumor cell proliferation and triggers apoptosis, connected with caspase activation, upregulation of Bax, as well as Bcl-2 and Bim downregulation along with amplification of poly-(ADP-ribose)-polymerase (PARP) cleavage fragment. Thus, the mesoporous SBA-15 is a promising carrier of the water-insoluble drug emodin. View Full-Text
Keywords: emodin; SBA-15; apoptosis; autophagy; melanoma emodin; SBA-15; apoptosis; autophagy; melanoma
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MDPI and ACS Style

Krajnović, T.; Maksimović-Ivanić, D.; Mijatović, S.; Drača, D.; Wolf, K.; Edeler, D.; Wessjohann, L.A.; Kaluđerović, G.N. Drug Delivery System for Emodin Based on Mesoporous Silica SBA-15. Nanomaterials 2018, 8, 322.

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