Research Fellow vacancy at UCL - join the Houlden Lab to study PSMF1 using patient-derived iPSCs in Parkinson’s and childhood neurodegeneration research.

Dissecting biological pathways highlighted by Mendelian gene discovery has provided critical insights into the pathogenesis of Parkinson’s disease (PD) and neurodegeneration. This approach ultimately catalyzes the identification of potential biomarkers and therapeutic targets. Here we identify PSMF1 as a gene implicated in parkinsonism and childhood neurodegeneration. We find that biallelic PSMF1 missense and loss-of-function variants co-segregate with phenotypes from early-onset PD to perinatal lethality with neurological manifestations across 18 pedigrees with 25 affected subjects, showing clear genotype-phenotype correlation. PSMF1 encodes the proteasome regulator PSMF1/hPI31, a highly conserved, ubiquitously expressed partner of the 20S proteasome and neurodegeneration-associated F-box-O 7 and valosin-containing proteins. We demonstrate that PSMF1 variants may affect proteasomal abundance and assembly, and are associated with alterations of mitochondrial membrane potential, respira

Magrinelli et al. link biallelic PSMF1 variants to phenotypes from parkinsonism to perinatal lethality, implicating proteasomal and mitochondrial dysfunction. PI31 loss in fly and mouse models causes ...

Though protein clumps associated with Alzheimer's and Parkinson's were discovered more than a century ago, researchers remain largely unable to prevent them from forming or eliminate them from the brain.

Magrinelli et al. link biallelic PSMF1 variants to phenotypes from parkinsonism to perinatal lethality, implicating proteasomal and mitochondrial dysfunction. PI31 loss in fly and mouse models causes age-dependent motor deficits and neurodegeneration.

PubMed link

Dissecting biological pathways highlighted by Mendelian gene discovery has provided critical insight

Magrinelli et al. link biallelic PSMF1 variants to phenotypes from parkinsonism to perinatal lethality, implicating proteasomal and mitochondrial dysfunction. PI31 loss in fly and mouse models causes ...

Objective Autophagy is a fundamental biological pathway with vital roles in intracellular homeostasis. During autophagy, defective cargoes including mitochondria are targeted to lysosomes for cleara...