Inhibition of USP30 Promotes Mitophagy by Regulating Ubiquitination of MFN2 by Parkin to Attenuate Early Brain Injury After SAH.

Summary: When a person has a bleeding stroke (called a subarachnoid hemorrhage or SAH), their brain cells get stressed. The tiny energy factories inside these cells, called mitochondria, get damaged and leak harmful signals. Normally, the cell cleans up these broken factories, but a specific protein called USP30 acts like a roadblock and stops the cleanup. Because the trash piles up, the brain cells die and cause severe swelling.

Scientists tested a new drug called MF094 that blocks the USP30 roadblock. By turning off USP30, the brain cells were able to successfully clear out the broken energy factories without hurting the healthy ones! In tests on mice and lab-grown cells, this treatment saved brain cells and greatly reduced inflammation, showing exciting promise as a future stroke therapy.