Antiproliferative effects of Tubi-bee propolis in glioblastoma cell lines
AUTOR(ES)
Borges, Kleiton Silva, Brassesco, María Sol, Scrideli, Carlos Alberto, Soares, Ademilson Espencer Egea, Tone, Luiz Gonzaga
FONTE
Genetics and Molecular Biology
DATA DE PUBLICAÇÃO
2011
RESUMO
Propolis is a resin formed by a complex chemical composition of substances that bees collect from plants. Since ancient times, propolis has been used in folk medicine, due to its biological properties, that include antimicrobial, anti-inflammatory, antitumoral and immunomodulatory activities. Glioblastoma is the most common human brain tumor. Despite the improvements in GBM standard treatment, patients' prognosis is still very poor. The aim of this work was to evaluate in vitro the Tubi-bee propolis effects on human glioblastoma (U251 and U343) and fibroblast (MRC-5) cell lines. Proliferation, clonogenic capacity and apoptosis were analyzed after treatment with 1 mg/mL and 2 mg/mL propolis concentrations for different time periods. Additionally, glioblastoma cell lines were submitted to treatment with propolis combined with temozolomide (TMZ). Data showed an antiproliferative effect of tubi-bee propolis against glioblastoma and fibroblast cell lines. Combination of propolis with TMZ had a synergic antiproliferative effect. Moreover, propolis caused decrease in colony formation in glioblastoma cell lines. Propolis treatment had no effects on apoptosis, demonstrating a cytostatic action. Further investigations are needed to elucidate the molecular mechanism of the antitumor effect of propolis, and the study of its individual components may reveal specific molecules with antiproliferative capacity.
Documentos Relacionados
- Aberrant splicing of Gs alpha transcript in transformed human astroglial and glioblastoma cell lines.
- Antiproliferative activity of Eremanthus crotonoides extracts and centratherin demonstrated in brain tumor cell lines
- Antiproliferative activity of methanol extracts of four species of Croton on different human cell lines
- Antiproliferative activity in tumor cell lines, antioxidant capacity and total phenolic, flavonoid and tannin contents of Myrciaria floribunda
- Bee venom induces apoptosis and suppresses matrix metaloprotease-2 expression in human glioblastoma cells