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Anticancer potential, molecular mechanisms and toxicity of <i>Euterpe oleracea</i> extract (açaí): A systematic review

By Jéssica Alessandra-Perini (5049248), Karina Cristina Rodrigues-Baptista (3350498), Daniel Escorsim Machado (3350489), Luiz Eurico Nasciutti (410515) and Jamila Alessandra Perini (3350501)

Abstract

<div><p>Cancer is an increasingly frequent malignancy worldwide, and despite the advances in drug development, it is still necessary to develop new plant-derived medicines. <i>Euterpe oleracea</i> (açaí) is abundant in South and Central America and has health benefits due to its high levels of phytochemicals, including lignans and polyphenols. The aim of this review was to systematically describe the safety and antitumor effects of açaí in preclinical models using rodents to provide a more comprehensive assessment of açaí for both therapeutic uses and the development of future clinical studies in cancer. Eligible studies were identified using four international databases (PubMed, Medline, Lilacs and SciELO) from their inception date through December 2017. The included studies were analyzed with methodological rigor (QATRS) to enable better quality control for these experimental studies. Sixty publications were identified in the databases, but only 9 articles were eligible: 6 evaluated the pharmacological effects of açaí in animal models of cancer (1 model each of esophageal cancer, urothelial cancer, melanoma and Walker-256 tumor and 2 models of colon cancer), and 3 were toxicological assays using preclinical models with rodents. Overall, 747 animals were analyzed. On a QATRS score scale of 0–20, the quality of the studies ranged from 16 to 20 points. Pulp was the main fraction of açaí administered, and an oral administration route was most common. The açaí dosage administered by gavage ranged from 30 mg/kg to 40,000 mg/kg, and açaí fed in the diet accounted for 2.5% to 5% of the diet. The anticarcinogenic and chemopreventive activities of açaí were observed in all experimental models of cancer and reduced the incidence, tumor cell proliferation, multiplicity and size of the tumors due to the antiinflammatory, antiproliferative and proapoptotic properties of açaí. No genotoxic effects were observed after açaí administration. The results of this review suggest that açaí is safe and can be used as a chemoprotective agent against cancer development. Açaí therapy may be a novel strategy for treating cancer.</p></div

Topics: Medicine, Pharmacology, Biotechnology, Ecology, Cancer, Science Policy, Environmental Sciences not elsewhere classified, Biological Sciences not elsewhere classified, Chemical Sciences not elsewhere classified, tumor cell proliferation, QATRS score scale, ça, Walker -256 tumor, Euterpe oleracea, model
Year: 2018
DOI identifier: 10.1371/journal.pone.0200101
OAI identifier: oai:figshare.com:article/6732869
Provided by: FigShare
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