Papua New Guinean Tree Compound Shows Potential in Motor Neuron Disease Study

A recent study published in Cell Death & Disease highlights a promising laboratory lead in the search for effective treatments for motor neuron disease (MND). Investigators at the University of Wollongong's Molecular Horizons screened more than 500 compounds derived from regional flora, fungi, and marine life. They tested these substances on motor neurons grown from stem cells donated by patients suffering from both sporadic and familial forms of the condition.

Led by Dr. Simon Maksour and Professor Lezanne Ooi, the team discovered that two substances extracted from the canopy tree Anisoptera thurifera—native to Papua New Guinea, the Philippines, and Indonesia—offered notable protective effects. The more potent compound, hopeaphenol, helped preserve nerve cell structure and defended motor neurons derived from 12 out of 14 patient donors against degeneration. Furthermore, the substance lowered overexcitable electrical activity in specific sporadic MND cell samples.

Investigators noted that hopeaphenol appears to exert its effects by activating SIRT1, a cellular protein involved in stress management and damage repair. Because this natural compound faces challenges crossing the blood-brain barrier and is difficult to manufacture, the team also evaluated SRT2104, a synthetic small-molecule drug that targets the same protein. Laboratory testing demonstrated that SRT2104 protected motor neurons at a fraction of the concentration required for hopeaphenol.

What to know: While the findings offer a novel lead for future drug development, the research remains at an early laboratory stage using cell cultures rather than human clinical trials. Because MND varies greatly between individuals, scientists stress that further investigation is required. Always consult a qualified healthcare provider for personal medical guidance and treatment decisions.