Multitarget Therapeutic Strategies for Chagas Disease: Natural Compounds, Antimicrobial Peptides, and Cell-Based Immunomodulation
Abstract
Chagas disease, caused by Trypanosoma cruzi, remains a major public health problem in Latin America and an emerging global health concern due to population mobility. Although benznidazole and nifurtimox remain the only approved antiparasitic drugs, their limited efficacy in chronic infection, prolonged treatment regimens, frequent adverse effects, and variable activity across parasite strains highlight the need for new therapeutic strategies. In addition, the pathogenesis of chronic Chagas disease is driven not only by parasite persistence but also by immune-mediated tissue damage, particularly in chronic Chagas cardiomyopathy. In this review, we examine emerging therapeutic approaches that extend beyond conventional trypanocidal chemotherapy, with emphasis on natural products, antimicrobial peptides, and cell-based immunomodulatory strategies. Plant compounds and essential oils have shown antiparasitic activity through mechanisms including oxidative stress induction, membrane disruption, interference with sterol biosynthesis, and mitochondrial dysfunction, while some extracts also modulate host immune responses. Antimicrobial peptides display dual potential by directly damaging parasite membranes and organelles or by reshaping infection-associated inflammatory responses. In parallel, cell-based therapies such as mesenchymal stromal cells, tolerogenic dendritic cells, and bone marrow-derived cells have demonstrated promising cardioprotective and immunoregulatory effects in…
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