Scorpion Venom May Provide the Next Breast Cancer Breakthrough

Scientists in Brazil are currently testing to see if the venom of an Amazonian scorpion could be used to poison breast cancer tumors.

Researchers at the University of São Paulo’s Preto School of Pharmaceutical Sciences (FCFRP-USP) have long worked to clone and express proteins from rattlesnake and scorpion venom with hopes of transforming these powerful compounds into medicines.

Recently, their work identified that venom of the scorpion Brotheas amazonicus appears to attack breast cancer cells in a way similar to a widely used chemotherapy medication.

These early findings were generated through a collaboration with scientists from the National Institute for Amazonian Research (INPA) and the Amazonas State University (UEA).

“Through bioprospecting, we were able to identify a molecule in the species of this Amazonian scorpion that is similar to that found in the venoms of other scorpions and that acts against breast cancer cells,” said Eliane Candiani Arantes, a professor at FCFRP-USP and the coordinator of the project.

Arantes and her team identified two neurotoxins in scorpion venom with immunosuppressive effects. Working with collaborators at INPA and UEA, they found a peptide named BamazScplp1 in the venom of Brotheas amazonicus that appears to have anti-tumor potential.

Laboratory tests showed that the peptide’s impact on breast cancer cells was comparable to paclitaxel, a commonly prescribed chemotherapy treatment. It primarily triggers necrosis, a form of cell death previously associated with molecules from other scorpion species.

Arantes and her team have isolated other components of venoms from scorpions and from snakes that have been used to help develop other clinical applications, including an internal wound sealant that mimics the body’s natural clotting and scaffolding processes. It’s undergoing trials for use in nerve repair, bone healing, and restoring movement following spinal cord injury.

Next time you see a scorpion, and think it a nasty creepy crawly that will send you to the hospital, show a bit of grace; they might help save a woman’s life some day.

This article by Andy Corbley was first published by Good News Network on November 27 2025. Lead Image: – credit Marino Linic.