Flávia Suelen Suelen de Oliveira Pereira, Maria Eduarda Oliveira de Souza, Gabriel Pedroso Viçozzi, Aline Castro Caurio, Simone Pinton, Cristiane Casagrande Denardin, Sandra Elisa Haas, Elton Luis Gasparotto Denardin, DAIANA AVILA

Bougainvillea glabra Choisy bracts extract in free and liposomal forms reduce hyperplasia induced by let‐60 gain‐of‐function in Caenorhabditis elegans

  • Molecular Biology
  • Molecular Medicine
  • General Chemistry
  • Biochemistry
  • General Medicine
  • Bioengineering

In this study, we evaluated the toxicological and antiproliferative effects of B. glabra Choisy bract extract (BGCE) in its free and loaded into liposomes forms administered to C. elegans mutants with let‐60 gain‐of‐function (gf). Our results demonstrated that the concentration up to 75 µg CAE/mL of BGCE was safe for the worms. Notably, we developed BGCE‐loaded liposomes to extend the pharmacological window up to 100 µg CAE/mL without toxicity. In addition, the extract and liposomes reduced the number and area of the multivulva formed in let‐60 gf mutants. There was also an increase in the apoptotic signaling in the germline cells and increased longevity mediated through DAF‐16 nuclear translocation with GST‐4 activation in the treated animals. Our findings demonstrated that the BGCE‐loaded liposomes possess antitumoral effects due to the activation of the apoptotic signaling and DAF‐16 nuclear translocation.

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