Bromelain as a natural anti-inflammatory drug: a systematic review
Taline Alves Nobre, Athanara Alves de Sousa, Irislene Costa Pereira, Álina Mara Carvalho Pedrosa-Santos, Luana de Oliveira Lopes, Nicole Debia, Heba A. S. El‐Nashar, Mohamed El‐Shazly, Muhammad Torequl Islam, João Marcelo de Castro e Sousa, Francisco Leonardo Torres‐Leal
Abstract
Inflammation is a complex and necessary mechanism of an organ’s response to biological, chemical and/or physical stimuli. In recent years, investigations on natural compounds with therapeutic actions for the treatment of different diseases have increased. Among these compounds, bromelain is highlighted, as a cysteine protease isolated from the Ananas comosus (pineapple) stem. This review aimed to evaluate the anti-inflammatory activity of bromelain, as well as its pathways on inflammatory mediators, through a systematic review with in vitro studies on different cell lines. The search was performed in PubMed, Science Direct, Scopus, Cochrane Library and Web of Science databases. Bromelain reduced IL-1β, IL-6 and TNF-α secretion when immune cells were already stimulated in an overproduction condition by proinflammatory cytokines, generating a modulation in the inflammatory response through prostaglandins reduction and activation of a cascade reactions that trigger neutrophils and macrophages, in addition to accelerating the healing process.