Single-cell RNA Sequencing Analysis of Human Neural Grafts Revealed Unexpected Cell Type Underlying the Genetic Risk of Parkinson's Disease

Overview

Parkinson’s disease (PD) is the second most common neurodegenerative disorder, affecting more than 6 million patients globally. Though previous studies have proposed several disease-related molecular pathways, how cell-type-specific mechanisms contribute to the pathogenesis of PD is still mostly unknown. In this study, we hypothesized that in addition to dopaminergic neurons, non-neuronal cells may also be involved in PD pathology. We analyzed the single-cell RNA sequencing data of human neural grafts transplanted to the midbrains of rat PD models. Specifically, we performed cell-type identification, PD gene screening, co-activation analysis, and intercellular interaction analysis. The results revealed significant expressions of PD-related genes in oligodendrocytes, a type of non-neuronal cells, as well as potentially important cell-cell interactions between oligodendrocytes and dopaminergic neurons. We also proposed several ligand-receptor pairs as promising drug targets in the treatment of PD. Overall, the study provided an overarching framework for understanding the cell non-autonomous effects in PD, which may inspire new research hypotheses and therapeutic strategies.

Competition history

• ISEF 2021 Cellular and Molecular Biology · Entry CELL031

Resources

• ISEF abstract page ↗

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