alpha-synuclein
(2)
Illimis Therapeutics
Illimis Therapeutics is a Seoul-based biotechnology company developing protein-based medicines for central nervous system and immune diseases. Its proprietary GAIA (Gas6-mediated Anti-Inflammatory Adaptor) platform builds bispecific fusion proteins that engage the body's TAM receptors to clear misfolded proteins such as amyloid-beta through phagocytosis without triggering the inflammation and ARIA side effects associated with existing antibody drugs. Founded in 2021, the company raised a $42 million Series B in July 2025 and is advancing a lead Alzheimer's candidate, ILM01, toward an IND by the end of 2027.
Amprion
Amprion is a precision-diagnostics company using Seed Amplification Assay (SAA) technology to detect misfolded proteins - alpha-synuclein, amyloid-beta and tau - in cerebrospinal fluid, giving physicians and drug developers a biological readout of neurodegenerative disease years before symptoms fully emerge. Its flagship SAAmplify-aSYN test (formerly SYNTap) is the first commercially available validated alpha-synuclein SAA, carries an FDA Breakthrough Device Designation, and aims to replace symptom-based guesswork for Parkinson's, Lewy body dementia, Alzheimer's and multiple system atrophy with autopsy-grade certainty.