A cancer drug may offer new way to treat Parkinson’s disease

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When we take medicine, it doesn’t just do its job and then disappear. Our bodies transform it, breaking it down into what we call metabolites.

These changes can make the medicine less active over time, but sometimes, something more interesting happens. These metabolites can actually do things in our bodies that the original drug doesn’t.

This is a story about how this process is much more than a simple breakdown—it can be a source of new treatments for serious diseases.

Take Rucaparib, for example. It’s a drug used to fight certain types of cancer like ovarian, breast, and prostate cancer by targeting a specific enzyme involved in repairing DNA.

However, researchers have discovered something fascinating about one of its breakdown products, a metabolite called M324.

Instead of just being a leftover piece, M324 has its own unique effects, especially when it comes to fighting cancer and even tackling a completely different kind of disease—Parkinson’s.

A team led by experts from the Bellvitge Biomedical Research Institute and the Catalan Institute of Oncology, along with chemists from the Institute of Advanced Chemistry of Catalonia, decided to take a closer look at Rucaparib and M324.

They used computer models to predict what M324 might do and then made the molecule in the lab to test it out. Their findings were quite surprising.

Not only does M324 help Rucaparib work better against some prostate cancers, but it also does something completely unexpected. It helps reduce the buildup of a protein in the brain that’s linked to Parkinson’s disease.

Parkinson’s disease is a tough challenge. It’s a condition where certain brain cells die off, leading to tremors and difficulty moving.

The buildup of a protein called α-synuclein is a hallmark of this disease, forming clumps in the brain that are thought to contribute to the symptoms.

Remarkably, M324 has shown the ability to lower the levels of this problematic protein in lab models of Parkinson’s.

The synergy between Rucaparib and M324 in fighting prostate cancer cells suggests new avenues for treatment, particularly in advanced stages of the disease.

Meanwhile, the ability of M324 to tackle a key problem in Parkinson’s disease opens the door to potential new treatments for this and possibly other neurodegenerative conditions.

This discovery underscores a broader message: the breakdown products of drugs, often overlooked, can have significant biological effects and therapeutic potential.

Instead of viewing drug metabolism merely as a way our bodies get rid of medicines, we should see it as a process that can lead to new medical discoveries.

In the case of Rucaparib and M324, what starts as a cancer treatment could end up offering new hope for patients with Parkinson’s disease.

The collaboration between researchers, combining computational predictions with lab experiments, has paved the way for these insights.

As we continue to explore the full effects of drugs and their metabolites, we might find more unexpected benefits, pointing towards a future where drug metabolism is not just about elimination but about discovery and innovation in treatment.

If you care about Parkinson’s disease, please read studies about Vitamin E that may help prevent Parkinson’s disease, and Vitamin D could benefit people with Parkinson’s disease.

For more information about brain health, please see recent studies about new way to treat Parkinson’s disease, and results showing COVID-19 may be linked to Parkinson’s disease.

The research findings can be found in Cell Chemical Biology.

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