Formulating elafibranor and obeticholic acid with phospholipids decreases drug-induced association of SPARC to extracellular vesicles from LX-2 human hepatic stellate cells

Zivko C, Witt F, Koeberle A, Fuhrmann G, Luciani P (2023)

Publication Type: Journal article

Publication year: 2023

Journal

European Journal of Pharmaceutics and Biopharmaceutics Elsevier

Book Volume: 182

Pages Range: 32-40

DOI: 10.1016/j.ejpb.2022.11.025

Abstract

Chronic hepatic diseases often compromise liver function and are directly responsible for up to two million yearly deaths world-wide. There are yet no treatment options to solve this global medical need. Experimental drugs elafibranor (Ela) and obeticholic acid (OA) appeared promising in numerous earlier studies, but they recently struggled to show significant benefits in patients. Little is known on the drugs’ impact on hepatic stellate cells (HSCs), key players in liver fibrogenesis. We recently reported a beneficial effect of polyenylphosphatidylcholines (PPCs)-rich formulations in reverting fibrogenic features of HSCs, including differences in their extracellular vesicles (EVs). Here, we newly formulated Ela and OA in PPC liposomes and evaluated their performance on the LX-2 (human HSC) cell line through our rigorous methods of EV-analysis, now expanded to include lipidomics. We show that direct treatments with Ela and OA increase EV-associated secreted protein acidic and cysteine rich (SPARC), a matricellular protein overexpressed in fibrogenesis. However, our results suggest that this potentially damaging drugs’ action to HSCs could be mitigated when delivering them with lipid-based formulations, most notably with a PPC-rich phospholipid inducing specific changes in the cellular and EV phospholipid composition. Thus, EV analysis substantially deepens evaluations of drug performances and delivery strategies.

Authors with CRIS profile

Gregor Fuhrmann Lehrstuhl für Pharmazeutische Biologie

Involved external institutions

Leopold-Franzens-Universität Innsbruck / University of Innsbruck AT Austria (AT) Friedrich-Schiller-Universität Jena DE Germany (DE)

How to cite

APA:

Zivko, C., Witt, F., Koeberle, A., Fuhrmann, G., & Luciani, P. (2023). Formulating elafibranor and obeticholic acid with phospholipids decreases drug-induced association of SPARC to extracellular vesicles from LX-2 human hepatic stellate cells. European Journal of Pharmaceutics and Biopharmaceutics, 182, 32-40. https://doi.org/10.1016/j.ejpb.2022.11.025

MLA:

Zivko, Cristina, et al. "Formulating elafibranor and obeticholic acid with phospholipids decreases drug-induced association of SPARC to extracellular vesicles from LX-2 human hepatic stellate cells." European Journal of Pharmaceutics and Biopharmaceutics 182 (2023): 32-40.

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