Parkinson's Disease Mechanisms and Treatments

Parkinsons disease microglia induce endogenous alpha-Synuclein pathology in patient-specific midbrain organoids.

This study shows that patient-derived microglia in midbrain organoids induce endogenous alpha-synuclein pathology without exogenous seeding.

Restoration of striatal neuroprotective pathways by kinase inhibitor treatment of Parkinsons linked-LRRK2 mutant mice

The paper shows that LRRK2 kinase inhibitor treatment restores cilia, Hedgehog signaling, neuroprotective factors, and dopamine processes in Parkinson's linked-LRRK2 mutant mice striatum.

Postsynaptic adaptations in direct pathway muscarinic M4-receptor signaling follow the temporal and regional pattern of dopaminergic degeneration

The paper examines how cholinergic signaling adapts in response to dopamine loss in Parkinson’s disease, finding that M4 receptor function declines regionally and temporally with dopaminergic degeneration.

Altered cortical network in Parkinson's Disease: the central role of PV interneuron and synaptic remodelling

This study investigates cortical network disruptions in Parkinson's disease using a mouse model, finding PV interneuron dysfunction drives maladaptive plasticity and motor deficits.

Complementary Structural and Chemical Biology Methods Reveal the Basis for Selective Radioligand Binding to α-Synuclein in MSA Tissue

The paper uses structural and chemical biology methods to show EX-6 binds selectively to α-synuclein fibrils in MSA tissue, with a 10-fold preference over PD tissue.

Multimodal sensory overload in dopamine-deficient larval zebrafish leads to paradoxical kinesia

The paper identifies a neural mechanism in dopamine-deficient zebrafish linking stress-induced sensory processing to motor control through hyperactive brain regions.

Global kinetic model of lipid-induced alpha-synuclein aggregation and its inhibition by small molecules

This paper develops a global kinetic model of lipid-induced alpha-synuclein aggregation and identifies how squalamine inhibits this process by reducing lipid-dependent primary nucleation.

Copper supplementation mitigates Parkinson-like wild-type SOD1 pathology and nigrostriatal degeneration in a novel mouse model

This study shows copper supplementation reduces SOD1 misfolding and protects dopamine neurons in a mouse model of Parkinson's disease.

Loss-of-function coding variants in the Ras of Complex Proteins/GTPase domain of Leucine Rich Repeat Kinase 2

The paper identifies three rare coding variants in LRRK2 that disrupt GTP binding and kinase activity, supporting their role in Parkinson's disease risk and drug target potential.

Dopamine and cortical iPSC-derived neurons with different Parkinsonian mutations show variation in lysosomal and mitochondrial dysfunction: implications for protein deposition versus selective cell loss

This study compares dopamine and cortical neurons with PD mutations to identify cellular dysfunctions linked to different pathological phenotypes.

Multi-omics comparative analyses of synucleinopathy models reveal distinct targets and relevance for drug development

The paper compares two rat synucleinopathy models using multi-omics data to identify disease mechanisms and drug targets relevant to Parkinson's disease.

Shared Genetic Architecture Between Parkinsons Disease and Sleep-Related Traits Implicates the MAPT Locus on Chromosome 17

This study identifies a shared genetic architecture between Parkinson's disease and sleep-related traits, implicating the MAPT locus in both conditions through common biological pathways.

Pathological α-synuclein elicits granulovacuolar degeneration independent of tau

This study shows that pathological α-synuclein can cause granulovacuolar degeneration independently of tau, using a mouse model of α-synucleinopathy.

SNCA-targeted epigenome therapy for Parkinsons disease alleviates pathological and behavioral perturbations in a mouse model

This study demonstrates that SNCA-targeted epigenome therapy reduces α-synuclein expression, aggregation, and motor deficits in a PD mouse model.

Lewy-MSA hybrid fold drives distinct neuronal a-synuclein pathology

The paper identifies a Lewy-MSA hybrid fold of α-synuclein in atypical MSA, linking distinct filament structures to neuronal versus oligodendroglial pathologies.

Modulation of SLP-2 expression protects against alpha-synuclein neuropathology by mitigating mitochondrial dysfunction

This study shows that increasing SLP-2 levels reduces alpha-synuclein-induced mitochondrial damage and neurodegeneration in Parkinson's disease models.

Coffee consumption is associated with later age-at-onset of Parkinson's disease

This study uses Mendelian randomization to find coffee consumption is causally linked to later age-at-onset of Parkinson's disease but not to disease risk or progression.

A CRISPR-CAS9 high throughput machine-learning platform for modulation of genes involved in Parkinson's disease-associated PINK1-mitophagy in iPSC-derived dopaminergic neurons

The paper develops a CRISPR-CAS9 platform with machine learning to study PINK1-mitophagy in Parkinson's disease using iPSC-derived neurons, identifying key genes and validating their roles.

Multiplex Proteomics of Lewy Body Dementia Reveals Cerebrospinal Fluid Biomarkers of Clinical and Neuropathological Heterogeneity

This study uses multiplex proteomics to identify CSF biomarkers of clinical and neuropathological heterogeneity in Lewy body dementia.

Large-scale bidirectional arrayed genetic screens identify OXR1 and EMC4 as modifiers of α-synuclein aggregation

The paper uses CRISPR screens to identify OXR1 and EMC4 as modifiers of α-synuclein aggregation in Parkinson's disease and related synucleinopathies.

Type-II kinase inhibitors that target Parkinson's Disease-associated LRRK2

Hybrid type-II inhibitors RN277 and RN341 target inactive LRRK2 with far fewer kinase off-targets than Rebastinib, preserve S935 phosphorylation, and rescue kinesin motility in vitro.

The combination of optogenetic-induced protein aggregation and proximity biotinylation assays strongly implicates endolysosomal proteins in the early stages of α-synuclein aggregation

This paper introduces UltraID-LIPA, a platform combining optogenetic-induced protein aggregation and proximity biotinylation to identify α-synuclein-interacting proteins, revealing endolysosomal proteins' role in early aggregation.

Variants in Lrrk2 and Snca deficiency do not alter the course of primary encephalitis due to neurotropic reovirus T3D in newborn mice

This study shows that Lrrk2 and Snca gene variants do not affect encephalitis severity in newborn mice infected with reovirus T3D via direct brain inoculation, unlike intranasal infection.

Parkinson's disease-vulnerable and -resilient dopamine neurons display opposite responses to excitatory input

The paper identifies Anxa1 as a marker for PD-vulnerable dopamine neurons and shows they respond oppositely to excitatory inputs compared to resilient Vglut2+ neurons.

A genome-wide RNA interference screening reveals protectiveness of SNX5 knockdown in a Parkinson`s disease cell model

The paper identifies SNX5 knockdown as protective against alpha-synuclein toxicity in a Parkinson's disease cell model through genome-wide RNA interference screening.

Distinguish risk genes functioning at presynaptic or postsynaptic regions and key connectomes associated with pathological α-synuclein spreading

The paper identifies presynaptic and postsynaptic risk genes and key connectomes involved in pathological α-synuclein spreading using mathematical models and gene regulatory network analysis.

Oxidative stress and vacuolar variants influence paraquat response in Saccharomyces cerevisiae of different genetic variants

This study examines how genetic variants in Saccharomyces cerevisiae affect paraquat toxicity, finding strain-specific differences in growth, oxidative stress, and vacuolar responses.

Mechanisms of Alpha-Synuclein Seeded Aggregation in Neurons Revealed by Fluorescence Lifetime Imaging

This study uses fluorescence lifetime imaging to track alpha-synuclein aggregation in neurons, revealing that seeds disassemble before escaping endolysosomes and triggering cytosolic aggregation.

T cell responses towards PINK1 and α-synuclein are elevated in prodromal Parkinson's disease

The paper examines T cell responses to PINK1 and α-synuclein in prodromal Parkinson's disease, finding elevated reactivity comparable to clinically diagnosed PD.

Neurotransmitter loaded DNA nanocages as potential therapeutics for α-synuclein based neuropathies in cells and in vivo

This study investigates DNA nanocages loaded with neurotransmitters as a therapeutic approach to clear α-synuclein aggregates in Parkinson's disease models in cells and zebrafish.