One drug offers hope for stroke patients

Protein aggregation inhibitor shows lower levels of cell death and paralysis in mice with acute strokes

2025-07-15

(Press-News.org) Stroke is said to be the second leading cause of death worldwide after heart disease. To prevent the death of neurons in the brain, a research group led by Osaka Metropolitan University Associate Professor Hidemitsu Nakajima of the Graduate School of Veterinary Science has developed a drug that inhibits a protein involved in cell death.

The multifunctional protein GAPDH (glyceraldehyde-3-phosphate dehydrogenase) is linked to pathogenesis in many intractable brain and nervous system diseases. The team developed GAI-17, a GAPDH aggregation inhibitor. When this inhibitor was administered to model mice with acute strokes, there was a significantly lower level of brain cell death and paralysis compared to untreated mice.

GAI-17 also showed no side effects of concern, such as adverse effects on the heart or cerebrovascular system. Furthermore, experiments using GAI-17 showed improvement in the mice even when administered six hours after a stroke.

“The GAPDH aggregation inhibitor we have developed is expected to be a single drug that can treat many intractable neurological diseases, including Alzheimer’s disease,” stated Professor Nakajima. “Going forward, we will verify the effectiveness of this approach in disease models other than stroke and promote further practical research toward the realization of a healthy and long-lived society.”

The findings were published in iScience.

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About OMU 

Established in Osaka as one of the largest public universities in Japan, Osaka Metropolitan University is committed to shaping the future of society through “Convergence of Knowledge” and the promotion of world-class research. For more research news, visit https://www.omu.ac.jp/en/ and follow us on social media: X, Facebook, Instagram, LinkedIn.

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