New Platform Uses Patient Olfactory Neurons to Study Neurodegenerative Disease
Researchers have developed Gateway, a clinical platform that collects olfactory sensory neurons from living patients to study neurodegenerative diseases like Alzheimer's and Parkinson's. The approach overcomes the limitation that living human brains cannot be routinely sampled during disease progression. The resulting 4-million-cell atlas from 202 donors provides a scalable resource for understanding disease mechanisms and discovering new therapeutic targets.
Scientists have created Gateway, a platform combining minimally invasive olfactory epithelium biopsy with advanced single-cell RNA sequencing to generate transcriptomic data from living patient neurons. The team built a 4-million-cell atlas from 202 human donors—including healthy controls and individuals with Alzheimer's Disease and Parkinson's Disease—which has been released as an open resource through CELLxGENE. The olfactory neurons prove particularly valuable because they are clinically accessible, developmentally linked to the central nervous system, and capture neuronal functional programs better than other accessible tissue types. In exploratory analyses, the researchers identified dysregulation of pathways and genes implicated in key neurodegenerative mechanisms including neuroinflammation, endolysosomal biology, proteostasis, and synaptic maintenance. This work addresses a major constraint in neuroscience research: the inability to routinely sample living human brain tissue during disease progression.
Limitations & open questions
The study's own limitations and open questions are not detailed in the provided abstract, such as: whether findings from olfactory neurons fully translate to central nervous system pathology, sample size adequacy for specific disease subgroups, validation status of identified dysregulated pathways in independent cohorts, and timeline for clinical translation of discoveries.
What different sources said
- bioRxivCenter
Gateway: patient olfactory neurons for large-scale discovery in neurodegenerative disease
Related
Fluorescence Correlation Spectroscopy Used to Monitor Chlamydia Protein Production in Cell-Free System
Researchers used fluorescence correlation spectroscopy (FCS) to track the real-time production of a Chlamydia outer protein (CopB) fused with a fluorescent marker in a cell-free protein synthesis system. The technique allowed them to measure protein concentration, size, aggregation, and maturation rates without requiring protein purification. This approach could streamline the characterization of proteins during synthesis for research and biotechnology applications.
DNA Origami Nanoparticles with Oligolysine Coating Show Promise for Retinal Cell Uptake
Researchers found that coating DNA origami nanoparticles with PEG5K-K10, a cationic polymer, significantly improves their uptake into retinoblastoma cells while maintaining safety and mobility in the eye. The coating was essential for cell internalization and did not impair the particles' ability to diffuse through the vitreous humor. These findings suggest DNA origami nanoparticles could be viable carriers for delivering therapeutic agents to treat eye diseases.
Spatial Clustering of Adhesion-Deficient Cells Controls Epithelial Tissue Rigidity, Study Shows
A computational study using vertex modeling demonstrates that how adhesion-deficient cells are spatially arranged in epithelial tissue—not just their number—determines whether the tissue loses mechanical rigidity. Clustered mutant cells cause sustained mechanical changes through sequential boundary removal, while randomly distributed ones are rapidly eliminated with minimal lasting effects. The findings suggest spatial organization is a key factor in early-stage cancer progression and epithelial-mesenchymal transition.