Evidence map›Paper›PMID 41318503›Full record

ArticleAlzheimer's research & therapy2025

Single-cell analysis reveals shared and distinct molecular signatures in brain organoid models of neurodegeneration and neuroinflammation.

Sophie Le Bars, Mohamed Soudy, Sarah Louise Nickels, Jens Christian Schwamborn, Enrico Glaab

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Article in Alzheimer's research & therapy, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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2 · The registry

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4 · The record

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5 · Who and what money

Authors and funding

5 authors.

Sophie Le BarsBiomedical Data Science Group, Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Esch-sur-Alzette, Luxembourg.
Mohamed SoudyBiomedical Data Science Group, Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Esch-sur-Alzette, Luxembourg.
Sarah Louise NickelsDevelopmental and Cellular Biology Group, Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Esch-sur-Alzette, Luxembourg.
Jens Christian SchwambornDevelopmental and Cellular Biology Group, Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Esch-sur-Alzette, Luxembourg.
Enrico GlaabBiomedical Data Science Group, Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Esch-sur-Alzette, Luxembourg. enrico.glaab@uni.lu.

Funding

Fonds National de la Recherche Luxembourg INTER/JPND23/17999421/AD-PLCG2
6 · The paper itself

Abstract

backgroundAlzheimer’s disease (AD) and Parkinson’s disease (PD) are complex neurodegenerative disorders with common pathological features, but the molecular mechanisms underlying their early stages remain poorly understood. This study aims to elucidate common and divergent changes in cellular processes in the early stages of neurodegeneration and neuroinflammation using brain organoid models.

methodsWe performed a multi-level comparative analysis of single-cell RNA sequencing data from brain organoid models previously designed to mimic specific features of PD- and AD-like pathology, by integrating gene expression, pathway enrichment, molecular network, and cell-cell communication analyses. Given the critical role of neuroinflammation in neurodegenerative disorders, we particularly focused on inflammatory signaling pathways and alterations in cell-cell communication that might drive disease progression.

resultsOur results reveal both common and contrasting changes between the different organoid models, including a common dysregulation of apoptotic pathways in astrocytes, a common upregulation of energy metabolism pathways in neurons, and opposing trends in ribosome-related pathways. Notably, our multi-level analysis identified key inflammatory alterations, including contrasting changes mediated by HMGB1 and shared dysregulation in the MDK signaling pathway. Finally, comparison with post-mortem brain tissue and GWAS data revealed a small set of overlapping significant genes, showing robust shared patterns across different stages of pathology and tissue sources.

conclusionsThese findings provide new insights into the molecular basis of neurodegeneration and neuroinflammation, highlighting diverging and shared alterations between different organoid models and post-mortem brain tissues that may inform follow-up validation and preclinical intervention studies for neurodegenerative disorders.

Indexed as

BrainNeurodegenerative DiseasesNeuroinflammatory DiseasesOrganoidsSingle-Cell AnalysisAlzheimer DiseaseAnimalsHumansParkinson DiseaseAlzheimer's diseaseBrain organoidsCell-cell communicationComparative transcriptomicsNeurodegenerationParkinson's diseaseSingle-cell transcriptomicsSystems biology

Identifiers

PMID41318503
PMCPMC12771709

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.