Antiproliferative activity in tumor cell lines, antioxidant capacity and total phenolic, flavonoid and tannin contents of Myrciaria floribunda

作者:Tietbohl Luis A C; Oliveira Adriana P*; Esteves Ricardo S; Albuquerque Ricardo D D G; Folly Diogo; Machado Francisco P; Correa Arthur L; Santos Marcelo G; Ruiz Ana L G; Rocha Leandro
来源:ANAIS DA ACADEMIA BRASILEIRA DE CIENCIAS, 2017, 89(2): 1111-1120.
DOI:10.1590/0001-3765201720160461

摘要

Myrciaria floribunda (H. West ex Willd.) O. Berg, Myrtaceae, is a native plant species of the Atlantic Rain Forest, from north to south of Brazil. The lyophilized ethyl acetate extract from the leaves of M. floribunda was investigated for its antiproliferative activity in tumor cell lines, antioxidant capacity and its total phenolic, flavonoid and tannin contents. Antiproliferative activity was tested in vitro against seven human cancer cells and against immortalized human skin keratinocytes line (HaCat, no cancer cell). Antioxidant activity was determined using 1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging and oxygen radical absorbing capacity (ORAC) assays and total phenolic, flavonoid and tannin contents were determined by spectrophotometric techniques. Ethyl acetate extract of M. floribunda exhibited antiproliferative activity against cancer cell lines with total growth inhibition (TGI) between 69.70 and 172.10 mu g/mL. For HaCat cell, TGI value was 213.60 mu g/mL. M. floribunda showed a strong antioxidant potential: EC 50 of 45.89 +/- 0.42 mu g/mL and 0.55 +/- 0.05 mmol TE/g for DPPH and ORAC, respectively. Total phenolic content was 0.23 +/- 0.013g gallic acid equivalents (GAE)/g extract and exhibited 13.10 +/- 1.60% of tannins content. The content of flavonoid was 24.08 +/- 0.44% expressed as rutin equivalents. These results provide a direction for further researches about the antitumoral potential of M. floribunda.

  • 出版日期2017-6