Nano-Formulation of Melatonin Offers Hope for Parkinson's Disease Treatment

Advancements in nanotechnology have opened new possibilities for treating Parkinson's disease (PD). Current treatments focus on managing symptoms opposed to halting or reversing disease progression, creating an urgent need for innovative therapies. Researchers at the Institute of Nano Science and Technology (INST), Mohali, have developed a nano-formulation of melatonin, a neurohormone known for its antioxidative and neuroprotective properties, to address these challenges. Melatonin, secreted by the pineal gland, regulates sleep and has shown promise in reducing oxidative stress by inducing mitophagy, a cellular process that removes damaged mitochondria. However, its therapeutic potential has been limited by low bioavailability and difficulty in reaching the brain. To overcome these barriers, researchers created a nano-formulation using human serum albumin (HSA) as a biocompatible carrier, enabling targeted, sustained delivery of melatonin to the brain and significantly enhancing its efficacy. The nano-melatonin formulation demonstrated several key benefits. It improved mitochondrial function by boosting mitophagy and mitochondrial biogenesis, effectively countering pesticide-induced toxicity in laboratory models. It also exhibited strong antioxidative properties by activating BMI1, a crucial epigenetic regulator, which reduced oxidative stress and cellular damage. In animal studies, the formulation protected neurons from toxin-induced degeneration, showcasing its potential as a neuroprotective therapy. Published in ACS Applied Materials & Interfaces, the research highlights the molecular mechanisms of melatonin’s action, particularly its ability to regulate oxidative stress and neuronal protection through BMI1 activation. Beyond Parkinson’s disease, this innovation holds promise for treating other conditions associated with mitochondrial dysfunction. By combining nanotechnology with neurotherapeutics, this breakthrough offers hope for safer, more effective treatments for a range of neurodegenerative disorders.