Lipid core nanoparticles as vehicle for docetaxel reduces atherosclerotic lesion, inflammation, cell death and proliferation in an atherosclerosis rabbit model.
Vascul Pharmacol
; 115: 46-54, 2019 04.
Article
em En
| MEDLINE
| ID: mdl-30797043
ABSTRACT
Chemotherapeutic agents used in cancer treatment associated to nanoparticles (LDE) that mimic the composition of low-density lipoprotein and buffer their toxicity can have strong anti-atherosclerosis action, as we showed in cholesterol-fed rabbits. Here, a novel preparation of docetaxel (DTX) carried in LDE was evaluated. Eighteen rabbits were fed 1% cholesterol during 8â¯weeks. After the first 4â¯weeks, 9 animals were treated for 4â¯weeks with intravenous LDE-DTX (1â¯mg/kg/week) and 9 with LDE only (controls) once a week for 4â¯weeks. Animals were then euthanized and the aortas were analyzed for morphometry, immunohistochemistry and Western blot. LDE-DTX treated group showed 80% reduction of atheroma area compared to controls. LDE-DTX treatment reduced in 60% the protein expression of macrophage marker CD68 and of MCP-1 in 80%. LDE-DTX pronouncedly lowered expression of pro-inflammatory markers NF-κB, TNF-α, IL-1ß, IL-6 and von Willebrand factor and elicited 40% reduction in cell proliferation marker PCNA. The presence of smooth muscle cells in the intima was 85% smaller than in controls. Pro-apoptotic caspase 3, caspase 9, Bax, and anti-apoptotic Bcl-2 all were reduced by LDE-DTX. Protein expression of MMP-2 and MMP-9, TGF-ß, and collagen 1 and 3 were also markedly lowered by the LDE-DTX treatment. Animals showed no hematological, hepatic or renal toxicity consequent to LDE-DTX treatment. In conclusion, LDE-DTX showed a wide array of strong effects on pro-inflammatory and proliferation-promoting factors that drive the lesion development. These findings and the lack of observable toxicity indicate that LDE-DTX can be a candidate for future clinical trials.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Contexto em Saúde:
6_ODS3_enfermedades_notrasmisibles
Base de dados:
MEDLINE
Assunto principal:
Aorta
/
Aortite
/
Proliferação de Células
/
Aterosclerose
/
Nanopartículas
/
Placa Aterosclerótica
/
Docetaxel
/
Lipídeos
/
Anti-Inflamatórios
Tipo de estudo:
Prognostic_studies
Limite:
Animals
Idioma:
En
Revista:
Vascul Pharmacol
Ano de publicação:
2019
Tipo de documento:
Article