Protein deglycase DJ-1 (DJ-1) (DJ-1)

Protein deglycase DJ-1, encoded by the PARK7 gene, is a ubiquitous and multifunctional protein essential for cellular protection against oxidative stress and mitochondrial dysfunction (UniProt P59998). It functions primarily as a redox-sensitive chaperone and an enzyme that repairs glycated proteins, thereby preventing the accumulation of advanced glycation end-products (PubMed: 28106294). In the context of neurodegeneration, particularly Parkinson's disease, loss-of-function mutations in DJ-1 lead to early-onset pathology, making the restoration of its activity a primary therapeutic goal (PubMed: 12446770). Current research focuses on the DJ-1 pathway via gene overexpression using viral vectors to increase protein levels in the substantia nigra, aiming to provide neuroprotection and reduce alpha-synuclein toxicity (PubMed: 31430310). While promising for neurodegenerative disorders, the therapeutic application must be balanced against DJ-1's role as an oncogene, where its overexpression is associated with increased cell proliferation and resistance to apoptosis in various cancers (PubMed: 19249685). Consequently, therapeutic strategies must carefully titrate DJ-1 levels to achieve neuroprotection without inducing malignant transformation. Small molecule stabilizers and inducers are also being explored to enhance the endogenous activity of the DJ-1 pathway.

Other names

Parkinson disease protein 7PARK7Protein DJ-1RNA-binding protein 7Maillard deglycase

Gene overexpression to increase protein levels and enhance antioxidant/chaperone activity; stabilization of the DJ-1 homodimer to maintain functional integrity.