Changes in iPSC-astrocyte morphology reflect Alzheimer’s disease patient clinical markers

Human induced pluripotent stem cells (iPSCs) provide powerful cellular models of Alzheimer's disease (AD) and offer many advantages over non-human models, including the potential to reflect variation in individual-specific pathophysiology and clinical symptoms. Previous studies have demonstrated that iPSC-neurons from individuals with Alzheimer's disease (AD) reflect clinical markers, including β-amyloid (Aβ) levels and synaptic vulnerability. However, despite neuronal loss being a key hallmark of AD pathology, many risk genes are predominantly expressed in glia, highlighting them as potential therapeutic targets. In this work iPSC-derived astrocytes were generated from a cohort of individuals with high versus low levels of the inflammatory marker YKL-40, in their cerebrospinal fluid (CSF). iPSC-derived astrocytes were treated with exogenous Aβ oligomers and high content imaging demonstrated a correlation between astrocytes that underwent the greatest morphology change from patients with low levels of CSF-YKL-40 and more protective APOE genotypes. This finding was subsequently verified using similarity learning as an unbiased approach. This study shows that iPSC-derived astrocytes from AD patients reflect key aspects of the pathophysiological phenotype of those same patients, thereby offering a novel means of modelling AD, stratifying AD patients and conducting therapeutic screens.

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Publication Details

Journal
Stem Cells
Published
2024-12-20
DOI
https://doi.org/10.1093/stmcls/sxae085
Citations
3
Primary Topic
Alzheimer's disease research and treatments
Type
article
Field-Weighted Citation Impact
0.98

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article

Changes in iPSC-astrocyte morphology reflect Alzheimer’s disease patient clinical markers

Simon Lovestone, Bryan Ng, Ivan Koychev, Georgina Miller et al.
3 citations
Stem Cells
Alzheimer's disease research and treatments
0.98
article

Changes in iPSC-astrocyte morphology reflect Alzheimer’s disease patient clinical markers

Simon Lovestone, Bryan Ng, Ivan Koychev, Georgina Miller, Tharani Chessell, James Benedict Rowe, Kanisa Arunasalam, Paresh Malhotra, Richard Wade‐Martins, Dennis Chan, M. Zameel Cader, Basil H. Ridha, Giovanna Zamboni, Noel J. Buckley, Alan Thomas, Elena M. Ribé, Helen Rowland, Alejo Nevado‐Holgado, Nicola R Sharp, Liting Wei, Jennifer Lawson, Ece Kocagöncü, Andrey Kormilitzin, Henrik Zetterberg, Anne Hedegaard, Qiang Liu, Shuhan Li
article en
3 citations

Abstract

Human induced pluripotent stem cells (iPSCs) provide powerful cellular models of Alzheimer's disease (AD) and offer many advantages over non-human models, including the potential to reflect variation in individual-specific pathophysiology and clinical symptoms. Previous studies have demonstrated that iPSC-neurons from individuals with Alzheimer's disease (AD) reflect clinical markers, including β-amyloid (Aβ) levels and synaptic vulnerability. However, despite neuronal loss being a key hallmark of AD pathology, many risk genes are predominantly expressed in glia, highlighting them as potential therapeutic targets. In this work iPSC-derived astrocytes were generated from a cohort of individuals with high versus low levels of the inflammatory marker YKL-40, in their cerebrospinal fluid (CSF). iPSC-derived astrocytes were treated with exogenous Aβ oligomers and high content imaging demonstrated a correlation between astrocytes that underwent the greatest morphology change from patients with low levels of CSF-YKL-40 and more protective APOE genotypes. This finding was subsequently verified using similarity learning as an unbiased approach. This study shows that iPSC-derived astrocytes from AD patients reflect key aspects of the pathophysiological phenotype of those same patients, thereby offering a novel means of modelling AD, stratifying AD patients and conducting therapeutic screens.

Stem CellsVol. 43(3)
AstraZeneca (United Kingdom) (GB), Agency for Science, Technology and Research (SG), University of Modena and Reggio Emilia (IT), University of Wisconsin–Madison (US), King's College London (GB), MRC Cognition and Brain Sciences Unit (GB), University of Cambridge (GB), Sahlgrenska University Hospital (SE), Nuffield Orthopaedic Centre (GB), Charing Cross Hospital (GB), University of Bristol (GB), University of Oxford (GB), Clinical Research Institute (US), Singapore Institute for Clinical Sciences (SG), CRUK/MRC Oxford Institute for Radiation Oncology (GB), AstraZeneca (Australia) (AU), Janssen (United Kingdom) (GB), UK Dementia Research Institute (GB), Oxford BioMedica (United Kingdom) (GB), AstraZeneca (Spain) (ES), National Hospital for Neurology and Neurosurgery (GB), Institute of Neurobiology (BG), University College London (GB), Imperial College London (GB), University of Newcastle Australia (AU), Newcastle University (GB), University of Gothenburg (SE), Medical Research Council (GB)
Alzheimer's Association, Alzheimer's Drug Discovery Foundation, Familjen Erling-Perssons Stiftelse, Stiftelsen för Gamla Tjänarinnor, EU Joint Programme – Neurodegenerative Disease Research, European Federation of Pharmaceutical Industries and Associations, NIHR Biomedical Research Centre, Royal Marsden NHS Foundation Trust/Institute of Cancer Research, National Institute for Health and Care Research, Department of Health and Social Care, Imperial College London, University College London, European Commission, Agency for Science, Technology and Research, Hjärnfonden, Vetenskapsrådet, UK Dementia Research Institute, Dementias Platform UK, HORIZON EUROPE Framework Programme, Medical Research Council, NIHR Cambridge Biomedical Research Centre
Good health and well-being
Openalex Percentile: Top 22%
Alzheimer's disease research and treatments
0.98
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