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Nanomedicine (Lond) ; 12(11): 1231-1242, 2017 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-28593827

RESUMO

AIM: Based on the ability of apoptosis to induce immunological tolerance, liposomes were generated mimicking apoptotic cells, and they arrest autoimmunity in Type 1 diabetes. Our aim was to validate the immunotherapy in other autoimmune disease: multiple sclerosis. MATERIALS & METHODS: Phosphatidylserine-rich liposomes were loaded with disease-specific autoantigen. Therapeutic capability of liposomes was assessed in vitro and in vivo. RESULTS: Liposomes induced a tolerogenic phenotype in dendritic cells, and arrested autoimmunity, thus decreasing the incidence, delaying the onset and reducing the severity of experimental disease, correlating with an increase in a probably regulatory CD25+ FoxP3- CD4+ T-cell subset. CONCLUSION: This is the first work that confirms phosphatidylserine-liposomes as a powerful tool to arrest multiple sclerosis, demonstrating its relevance for clinical application.


Assuntos
Autoantígenos/administração & dosagem , Imunoterapia/métodos , Lipossomos/química , Esclerose Múltipla/terapia , Glicoproteína Mielina-Oligodendrócito/administração & dosagem , Peptídeos/administração & dosagem , Fosfatidilserinas/química , Animais , Autoantígenos/imunologia , Autoantígenos/uso terapêutico , Feminino , Camundongos Endogâmicos C57BL , Esclerose Múltipla/imunologia , Glicoproteína Mielina-Oligodendrócito/imunologia , Glicoproteína Mielina-Oligodendrócito/uso terapêutico , Peptídeos/imunologia , Peptídeos/uso terapêutico , Linfócitos T Reguladores/imunologia
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