Toxin-Derived Peptides Show Promising Antiproliferative and Cytotoxic Effects Against Various Cancers

Despite advancements, cancer remains a leading cause of death globally, with conventional therapies often limited by significant adverse effects and lack of specificity. The urgent need for more effective and targeted treatments has driven research into novel therapeutic sources. Natural biomolecules, particularly peptides derived from animal toxins, represent an innovative and rich reservoir of compounds with demonstrated efficacy against cancer cells, offering a potential paradigm shift in oncology by targeting specific pathways with reduced systemic toxicity.

This comprehensive review explores animal toxins as a rich source of bioactive compounds with potential anticancer properties. The authors outlined the discovery and development stages of these toxin-derived peptides, emphasizing their application against the most prevalent types of cancer. The review included an overview of both in vitro and in vivo assessments of their anticancer activity and toxicity, extending the analysis to various tumor types. The work synthesized existing literature to highlight mechanisms of action and potential therapeutic applications.

The review found that peptides derived from various species, including scorpions, snakes, bees, spiders, and frogs, consistently demonstrate promising antiproliferative and cytotoxic effects against cancer cells. These peptides exhibit diverse mechanisms of action, often targeting specific cellular processes unique to malignant cells, thereby reducing off-target effects. For instance, many induce apoptosis or disrupt cell membrane integrity, leading to selective cancer cell death. The comprehensive overview highlighted numerous examples where toxin-derived peptides showed significant reductions in tumor growth in in vivo models and potent cytotoxicity in in vitro assays. > The findings underscore a paradigm shift in cancer research, showcasing the potential of these compounds for developing targeted and efficient cancer therapies with reduced side effects compared to conventional treatments.