Membrane protein-chimeric liposome-mediated delivery of triptolide for targeted hepatocellular carcinoma therapy

Triptolide (TPL) is a diterpenoid triepoxide with broad antitumor efficacy, while lack of mechanism of action, severe systemic toxicity, and poor water solubility of TPL limited its usage. To unveil the mechanism of action and improve the pharmaceutical properties of TPL, here we explored the molecular mechanism of TPL and then fabricated TPL-loaded membrane protein-chimeric liposomes (TPLMP-LP) and tested its anticancer efficacy against hepatocellular carcinoma (HCC). CCK8 assay, colony formation assay, EdU assay, and flow cytometry were used to examine the activity of TPL. RNA sequence and gain-and-loss of function assays were used to explore the molecular mechanisms. TPL@MP-LP was characterized by size, zeta potential, polydispersity index, and transmission electron microscopy. Cellular uptake and cell viability assay were performed to evaluate the internalization and anticancer efficacy of TPL@MP-LP in vitro. Biodistribution and in vivo antitumor efficacy of TPL@MP-LP were evaluated on orthotopic HCC mice models. TPL robustly inhibited HCC cells by inducing cell proliferation arrest, apoptosis via the mitochondrial pathway, and necroptosis via RIPK1/RIPK3/MLKL signaling. TPL was successfully loaded into MP-LP, with a drug-loading capacity of 5.62 ± 0.80%. MP-LP facilitated TPL internalization and TPL@MP-LP exerted enhanced anticancer efficacy against Huh7 cells. TPL@MP-LP showed targeting ability to the tumor site. More importantly, TPL@MP-LP treatment suppressed tumor growth but showed minimal damage to liver and renal functions. TPL exerted anticancer effects on HCC via inducing cell proliferation arrest, apoptosis, and necroptosis, and the MP-LP might be a promising delivery strategy to improve the antitumor efficacy while mitigating toxicity of TPL for HCC therapy.

Medienart:

E-Artikel

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

Zur Gesamtaufnahme - volume:28

Enthalten in:

Drug delivery - 28(2021), 1 vom: 02. Dez., Seite 2033-2043

Sprache:

Englisch

Beteiligte Personen:

Zheng, Yanwen [VerfasserIn]
Kong, Fanhua [VerfasserIn]
Liu, Songyang [VerfasserIn]
Liu, Xi [VerfasserIn]
Pei, Dongni [VerfasserIn]
Miao, Xiongying [VerfasserIn]

Links:

Volltext

Themen:

19ALD1S53J
Apoptosis
Diterpenes
Drug Carriers
Drug delivery
Epoxy Compounds
Hepatocellular carcinoma
Journal Article
Liposomes
Membrane Proteins
Membrane proteins
Necroptosis
Phenanthrenes
Triptolide

Anmerkungen:

Date Completed 14.01.2022

Date Revised 14.01.2022

published: Print

Citation Status MEDLINE

doi:

10.1080/10717544.2021.1983072

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM331115441