In a recent study, researchers have found that the molecules in tarantula venom could be used as an alternative to opioid pain killers for those seeking chronic pain relief.
They have come up with a novel tarantula venom mini-protein that can potentially relieve severe pain without addiction. This study was published in The Journal of Biological Chemistry.
University of Queensland Dr Christina Schroeder from UQ's Institute for Molecular Bioscience said the current global opioid crisis meant urgent alternatives to morphine and morphine-like drugs, such as fentanyl and oxycodone, were desperately needed.
"Although opioids are effective in producing pain relief, they come with unwanted side-effects like nausea, constipation and the risk of addiction, placing a huge burden on society," Dr Schroeder said."Our study found that a mini-protein in tarantula venom from the Chinese bird spider, known as Huwentoxin-IV, binds to pain receptors in the body.
"By using a three-pronged approach in our drug design that incorporates the mini-protein, its receptor and the surrounding membrane from the spider venom, we've altered this mini-protein resulting in greater potency and specificity for specific pain receptors.
"This ensures that just the right amount of the mini-protein attaches itself to the receptor and the cell membrane surrounding the pain receptors."
Dr Schroeder said the mini-protein had been tested in mouse models and shown to work effectively."Our findings could potentially lead to an alternative method of treating pain without the side-effects and reduce many individuals' reliance on opioids for pain relief," she said.
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