The role of stabilizers and mechanical processes on physico-chemical and anti-inflammatory properties of methotrexate nanosuspensions

Autor(es)

dos Santos, Aline Martins ^[1] ; Meneguin, Andreia Bagliotti ^[1] ; Fonseca-Santos, Bruno ^[1] ; Chaves de Souza, Mauricio Palmeira ^[1] ; Barboza Ferreira, Leonardo Miziara ^[1] ; Sabio, Rafael Miguel ^[1] ; Chorilli, Marlus ^[1] ; Daflon Gremiao, Maria Palmira ^[1]

Afiliação do(s) autor(es)

^[1] Sao Paulo State Univ UNESP, Sch Pharmaceut Sci, Araraquara, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF DRUG DELIVERY SCIENCE AND TECHNOLOGY; v. 57, JUN 2020.
• Citações Web of Science: 0

Resumo

The aim of this study was to investigate two different mechanical processes (Ultra-turrax (R) and Sonication) and two stabilizers (Methyl cellulose (MC) and Poloxamer 407 (P407)) on the physico-chemical and anti-inflammatory properties of the MTX nanosuspensions. The mechanical process, presence and type of stabilizers showed a strong impact on the particle size, polydispersity index (PDI), zeta potential and morphology of MTX nanosuspensions. In particular, the surfactant property of P407 in combination sonication process reduced significantly the particle size of MTX to nano-range size. Short term stability evaluated by dynamic light scattering (DLS) technique proved that the addition of the stabilizers MC and P407 on the MTX nanosuspensions provided stability through of the steric hindrance. In vitro dissolution studies showed that MTX nanosuspensions enhanced the drug release rates, revealing the influence of the different particle size on the drug release profiles. In vivo inflammation study indicated that MTX nanosuspensions presented a greater effect on the anti-inflammatory activity, maintaining this effect for up to 6 h, being more effective than the positive control. It could be concluded that the combined usage of mechanical processes and stabilizers modified in vitro and in vivo performance of the MTX nanosuspensions. Therefore, these results confirm the potential of these nanosuspensions as a promising tool for enhancement of dissolution rate and oral bioavailability of poorly water-soluble drugs, such as MTX. (AU)

• Processo FAPESP: 16/01464-9 - Sistemas multifuncionalizados empregando nanopartículas de quitosana ancoradas com metotrexato e incorporadas em micropartículas baseadas em amido resistente/pectina para liberação cólon-específica do 5-fluorouracil para o tratamento do câncer colorretal
• Beneficiário: Aline Martins dos Santos
• Modalidade de apoio: Bolsas no Brasil - Doutorado