Dr Julie Simpson
PhD
Neuroscience, School of Medicine and Population Health
Senior Lecturer in Translational Neuropathology
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+44 114 222 2242
Full contact details
Neuroscience, School of Medicine and Population Health
Sheffield Institute for Translational Neuroscience (SITraN)
385a Glossop Road
Sheffield
S10 2HQ
- Profile
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I graduated from the University of Sheffield in 1995 with BSc (Hons) in Neuroscience, and was awarded a PhD in Neuroimmunology from Sheffield Hallam University in 1999. I joined the former Department of Neuroscience (now part of the School of Medicine and Population Health) at the University of Sheffield in 2002 and have been a member of the Neuropathology research group since 2004. I was appointed Lecturer in Translational Neuropathology at SITraN in 2016 and Senior Lecturer in 2020.
- Research interests
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My main research interests are identifying and understanding neuroinflammatory contributions to ageing and dementia. My research primarily focusses on the detailed immunohistological characterisation and gene expression profiling of specific cell populations in the ageing brain.
Current Projects
- Blood brain barrier dysfunction in the ageing brain
- The link between systemic infection and cognitive decline in patients with dementia
- Microglial-mediated mechanisms underlying the pathogenesis of neurodegenerative diseases
- Publications
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Journal articles
- Cerebellar degeneration in gluten ataxia is linked to microglial activation. Brain Communications, 6(2). View this article in WRRO
- Relationships of brain cholesterol and cholesterol biosynthetic enzymes to Alzheimer’s pathology and dementia in the CFAS population-derived neuropathology cohort. Neuroscience Research.
- Transcriptomic Profiling Reveals Discrete Poststroke Dementia Neuronal and Gliovascular Signatures.. Transl Stroke Res.
- Biological and methodological complexities of beta‐amyloid peptide; implications for Alzheimer’s disease research. Journal of Neurochemistry. View this article in WRRO
- Heterogeneity of cellular inflammatory responses in ageing white matter and relationship to alzheimer’s and small vessel disease pathologies. Brain Pathology, 31(3). View this article in WRRO
- Type 2 diabetes mellitus-associated transcriptome alterations in cortical neurones and associated neurovascular unit cells in the ageing brain. Acta Neuropathologica Communications, 9(1).
- Hypoxia‐induced changes in microglia in the
vhl
‐/‐
zebrafish. Alzheimer's & Dementia, 16(S3).
- Demonstrating a reduced capacity for removal of fluid from cerebral white matter and hypoxia in areas of white matter hyperintensity associated with age and dementia. Acta Neuropathologica Communications, 8(1). View this article in WRRO
- Review: Microglia in motor neuron disease. Neuropathology and Applied Neurobiology. View this article in WRRO
- Acute effects of systemic inflammation upon the neuro-glial-vascular unit and cerebrovascular function.. Brain, Behavior, & Immunity - Health, 5. View this article in WRRO
- Histological characterization of interneurons in Alzheimer's disease reveals a loss of somatostatin interneurons in the temporal cortex. Neuropathology. View this article in WRRO
- NDRG2 expression correlates with neurofibrillary tangles and microglial pathology in the ageing brain. International Journal of Molecular Sciences, 21(1). View this article in WRRO
- Neutrophil-derived microvesicle induced dysfunction of brain microvascular endothelial cells in vitro. International Journal of Molecular Sciences, 20(20). View this article in WRRO
- Age-associated mRNA and miRNA expression changes in the blood-brain barrier. International Journal of Molecular Sciences, 20(12). View this article in WRRO
- Expression of p16 and p21 in the frontal association cortex of ALS/MND brains suggest neuronal cell cycle dysregulation and astrocyte senescence in early stages of the disease. Neuropathology and Applied Neurobiology. View this article in WRRO
- Quantitative histomorphometry of capillary microstructure in deep white matter. NeuroImage Clinical, 23. View this article in WRRO
- Histological data of axons, astrocytes, and myelin in deep subcortical white matter populations. Data in Brief, 23. View this article in WRRO
- TIGAR inclusion pathology is specific for Lewy body diseases. Brain Research, 1706, 218-223. View this article in WRRO
- The time course of recognition memory impairment and glial pathology in the hAPP-J20 mouse model of Alzheimer’s disease. Journal of Alzheimer's disease : JAD. View this article in WRRO
- Iba-1-/CD68+ microglia are a prominent feature of age-associated deep subcortical white matter lesions. PLoS ONE, 14(1). View this article in WRRO
- Metallothionein‐I/II expression associates with the astrocyte DNA damage response and not Alzheimer‐type pathology in the aging brain. Glia, 66(11), 2316-2323. View this article in WRRO
- Loss of IGF1R in human astrocytes alters complex I activity and support for neurons.. Neuroscience, 390, 46-59. View this article in WRRO
- Local volume fraction distributions of axons, astrocytes, and myelin in deep subcortical white matter. NeuroImage, 179, 275-287. View this article in WRRO
- Proteomic and cellular localisation studies suggest non-tight junction cytoplasmic and nuclear roles for occludin in astrocytes. European Journal of Neuroscience, 47(12), 1444-1456. View this article in WRRO
- S5-01-01: AGEING AND NEUROIMMUNOLOGY: WHITE MATTER PATHOLOGY. Alzheimer's & Dementia, 14(7S_Part_31), P1624-P1624.
- P4-059: NEUTROPHIL-DERIVED MICROVESICLE-INDUCED BLOOD BRAIN BARRIER DYSFUNCTION: A POTENTIAL MECHANISM LINKING SYSTEMIC INFLAMMATION AND DEMENTIA. Alzheimer's & Dementia, 14(7S_Part_27), P1455-P1455.
- Age‐associated changes in the blood‐brain barrier: comparative studies in human and mouse. Neuropathology and Applied Neurobiology, 44(3), 328-340. View this article in WRRO
- Immuno-Laser-Capture Microdissection for the Isolation of Enriched Glial Populations from Frozen Post-Mortem Human Brain, 273-284.
- Review: Neuropathology and behavioural features of transgenic murine models of Alzheimer's disease. Neuropathology and Applied Neurobiology, 43(7), 553-570. View this article in WRRO
- Review: Astrocytes in Alzheimer's disease and other age-associated dementias: a supporting player with a central role. Neuropathology and Applied Neurobiology, 43(4), 281-298. View this article in WRRO
- Spinal muscular atrophy: Factors that modulate motor neurone vulnerability.. Neurobiology of Disease. View this article in WRRO
- Gene expression profiling of the astrocyte transcriptome in multiple sclerosis normal appearing white matter reveals a neuroprotective role. Journal of Neuroimmunology, 299, 139-146. View this article in WRRO
- Expression microdissection isolation of enriched cell populations
from archival brain tissue. Journal of Neuroscience Methods, 268, 125-130. View this article in WRRO
- Neuronal DNA damage response-associated dysregulation of signalling pathways and cholesterol metabolism at the earliest stages of Alzheimer-type pathology. Neuropathology and Applied Neurobiology, 42(2), 167-179. View this article in WRRO
- Insulin and IGF1 signalling pathways in human astrocytes in vitro and in vivo; characterisation, subcellular localisation and modulation of the receptors. Molecular Brain, 8(1). View this article in WRRO
- The nuclear retention of transcription factor FOXO3a correlates with a DNA damage response and increased glutamine synthetase expression by astrocytes suggesting a neuroprotective role in the ageing brain. Neuroscience Letters, 609, 11-17. View this article in WRRO
- Oxidative Glial Cell Damage Associated with White Matter Lesions in the Aging Human Brain. Brain Pathology, 25(5), 565-574. View this article in WRRO
- A neuronal DNA damage response is detected at the earliest stages of Alzheimer's neuropathology and correlates with cognitive impairment in the Medical Research Council's Cognitive Function and Ageing Study ageing brain cohort. Neuropathology and Applied Neurobiology, 41(4), 483-496. View this article in WRRO
- Brain Endothelial miR-146a Negatively Modulates T-Cell Adhesion through Repressing Multiple Targets to Inhibit NF-κB Activation. Journal of Cerebral Blood Flow & Metabolism, 35(3), 412-423.
- Age-Associated White Matter Lesions: The MRC Cognitive Function and Ageing Study. Brain Pathology, 25(1), 35-43.
- Alpha-synuclein mRNA expression in oligodendrocytes in MSA. GLIA. View this article in WRRO
- MicroRNA-155 negatively affects blood-brain barrier function during neuroinflammation.. FASEB J, 28(6), 2551-2565.
- DNA damage response and senescence in endothelial cells of human cerebral cortex and relation to Alzheimer's neuropathology progression: a population-based study in the Medical Research Council Cognitive Function and Ageing Study (MRC-CFAS) cohort.. Neuropathol Appl Neurobiol, 40(7), 802-814.
- Axonal Preservation in Deep Subcortical White Matter Lesions in the
Ageing Brain. Journal of Aging Science, 2(1). View this article in WRRO
- Brain haemosiderin in older people: pathological evidence for an ischaemic origin of magnetic resonance imaging (MRI) microbleeds.. Neuropathol Appl Neurobiol, 40(3), 258-269. View this article in WRRO
- Calcium dysregulation in relation to Alzheimer-type pathology in the ageing brain.. Neuropathol Appl Neurobiol, 39(7), 788-799.
- The epidemiological neuropathology of dementia and the implications for drug development. Neurodegenerative Disease Management, 2(5), 471-482.
- Mesial temporal astrocyte tau pathology in the MRC-CFAS ageing brain cohort.. Dement Geriatr Cogn Disord, 34(1), 15-24.
- Isolation of enriched glial populations from post-mortem human CNS material by immuno-laser capture microdissection.. J Neurosci Methods, 208(2), 108-113.
- Microarray analysis of the astrocyte transcriptome in the aging brain: relationship to Alzheimer's pathology and APOE genotype. NEUROBIOL AGING, 32(10), 1795-1807.
- Alterations in the blood brain barrier in ageing cerebral cortex in relationship to Alzheimer-type pathology: a study in the MRC-CFAS population neuropathology cohort.. Neurosci Lett, 505(1), 25-30.
- P3-156: Microarray analysis of the astrocyte transcriptome in the aging brain: Relationship to Alzheimer's pathology and APOE genotype. Alzheimer's & Dementia, 7, S566-S566.
- Epidemiological neuropathology: the MRC Cognitive Function and Aging Study experience.. J Alzheimers Dis, 25(2), 359-372.
- Brain iron dysregulation and the risk of ageing white matter lesions. NeuroMolecular Medicine, 13(4), 289-299.
- Alterations in the blood brain barrier in ageing cerebral cortex in relationship to Alzheimer-type pathology: A study in the MRC-CFAS population neuropathology cohort. Neuroscience Letters, 505(1), 25-30.
- Alterations of the blood-brain barrier in cerebral white matter lesions in the ageing brain.. Neurosci Lett, 486(3), 246-251.
- Astrocyte phenotype in relation to Alzheimer-type pathology in the ageing brain.. Neurobiol Aging, 31(4), 578-590.
- Population variation in oxidative stress and astrocyte DNA damage in relation to Alzheimer-type pathology in the ageing brain.. Neuropathol Appl Neurobiol, 36(1), 25-40.
- Alterations of the blood-brain barrier in cerebral white matter lesions in the ageing brain. Neuroscience Letters, 486(3), 246-251.
- Microarray RNA expression analysis of cerebral white matter lesions reveals changes in multiple functional pathways.. Stroke, 40(2), 369-375.
- Population variation in glial fibrillary acidic protein levels in brain ageing: relationship to Alzheimer-type pathology and dementia.. Dement Geriatr Cogn Disord, 27(5), 465-473.
- Microglial activation in white matter lesions and nonlesional white matter of ageing brains.. Neuropathol Appl Neurobiol, 33(6), 670-683.
- White matter lesions in an unselected cohort of the elderly: astrocytic, microglial and oligodendrocyte precursor cell responses.. Neuropathol Appl Neurobiol, 33(4), 410-419.
- White matter lesions in an unselected cohort of the elderly: molecular pathology suggests origin from chronic hypoperfusion injury.. Stroke, 37(6), 1391-1398.
- The humoral response in the pathogenesis of gluten ataxia.. Neurology, 58(8), 1221-1226.
- Inflammation in the central nervous system in multiple sclerosis: The role of chemokines and their receptors. Inflammopharmacology, 9(1-2), 23-33.
- Expression of the beta-chemokine receptors CCR2, CCR3 and CCR5 in multiple sclerosis central nervous system tissue.. J Neuroimmunol, 108(1-2), 192-200.
- Expression of the interferon-gamma-inducible chemokines IP-10 and Mig and their receptor, CXCR3, in multiple sclerosis lesions.. Neuropathol Appl Neurobiol, 26(2), 133-142.
- The role of chemokines in the pathogenesis of multiple sclerosis.. Adv Exp Med Biol, 468, 135-150.
- Investigation of the mechanism of neural damage in patients with gluten sensitivity and neurological dysfunction. Journal of Neuroimmunology, 90(1), 32-32.
- Expression of monocyte chemoattractant protein-1 and other beta-chemokines by resident glia and inflammatory cells in multiple sclerosis lesions.. J Neuroimmunol, 84(2), 238-249.
- The Microglial Transcriptome of Age-Associated Deep Subcortical White Matter Lesions Suggests a Neuroprotective Response to Blood–Brain Barrier Dysfunction. International Journal of Molecular Sciences, 25(8), 4445-4445.
- Insights into the Pathological Basis of Dementia from Population Based Neuropathology Studies. Neuropathology and Applied Neurobiology.
- Potential Mechanisms Underlying the Dysfunction of the Blood–Brain Barrier. International Journal of Molecular Sciences, 24(9), 8184-8184.
- Differential perivascular microglial activation in the deep white matter in vascular dementia developed post‐stroke. Brain Pathology.
- RNA-Seq Profiling of Neutrophil-Derived Microvesicles in Alzheimer’s Disease Patients Identifies a miRNA Signature That May Impact Blood–Brain Barrier Integrity. International Journal of Molecular Sciences, 23(11), 5913-5913.
- Persistent DNA damage alters the neuronal transcriptome suggesting cell cycle dysregulation and altered mitochondrial function. European Journal of Neuroscience.
- Transcriptomic Analysis of Human Astrocytes In Vitro Reveals Hypoxia-Induced Mitochondrial Dysfunction, Modulation of Metabolism, and Dysregulation of the Immune Response. International Journal of Molecular Sciences, 21(21), 8028-8028.
- Advanced Glycation End Product Formation in Human Cerebral Cortex Increases With Alzheimer-Type Neuropathologic Changes but Is Not Independently Associated With Dementia in a Population-Derived Aging Brain Cohort. Journal of Neuropathology & Experimental Neurology.
- Acute effects of systemic inflammation upon neurovascular unit and cerebrovascular function..
- The time course of recognition memory impairment and glial pathology in the hAPP-J20 mouse model of Alzheimer's disease..
- A Reduced Astrocyte Response to β-Amyloid Plaques in the Ageing Brain Associates with Cognitive Impairment. PLoS ONE, 10(2). View this article in WRRO
- Transcriptomic Analysis of Age-Associated Periventricular Lesions Reveals Dysregulation of the Immune Response. International Journal of Molecular Sciences, 21(21), 7924-7924.
Conference proceedings papers
- General Information. Neuropathology and Applied Neurobiology, Vol. 46 (pp 5-6)
- Iba-1-/CD68+microglia are a prominent feature of age-associated deep subcortical white matter lesions. Neuropathology and Applied Neurobiology, Vol. 45(S1) (pp 33-33), 6 March 2019 - 8 March 2019. View this article in WRRO
- Probing the biochemical composition of normal appearance white matter, active and chronic lesions from multiple sclerosis cases using vibrational spectroscopy. Journal of Neuroimmunology, Vol. 275(1-2) (pp 128-128)
- The Pattern of AQP4 Expression in the Ageing Human Brain and in Cerebral Amyloid Angiopathy. International Journal of Molecular Sciences, Vol. 21(4) (pp 1225-1225)
Preprints
- Acute effects of systemic inflammation upon the neuro-glial-vascular unit and cerebrovascular function., Research Square Platform LLC.
- Cerebellar degeneration in gluten ataxia is linked to microglial activation. Brain Communications, 6(2). View this article in WRRO
- Research group
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PhD students
- Mara Floare. Supervisors: Julie Simpson, Marios Hadjivassilou “TG6 autoimmunity and the development of neurological dysfunction in gluten sensitivity related disorders”
- Zoe Moore. Supervisors: Julie Simpson, Steve Wharton “Does systemic infection modulate astrocyte function in Alzheimer’s disease?”
- Teaching interests
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I am involved in teaching on all MSc courses within the Division of Neuroscience. I am Course Lead of the MSc Translational Neuroscience, a course which is designed for students interested in gaining the practical, lab-based skills necessary to understand neurological diseases at the molecular and cellular level, and how to apply this knowledge to benefit patients.
I was awarded a Postgraduate Certificate in Learning and Teaching in Higher Education from Sheffield Hallam University in 1999, became a Fellow of the Higher Education Academy in 2011, and a Senior Fellow of the HEA in 2019.
- Teaching activities
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I am involved in teaching on all MSc courses within the Department of Neuroscience. I am Course Lead of the MSc Translational Neuropathology, a course which combines core teaching of the fundamental aspects of the major neuropathological diseases with significant emphasis on the development of practical laboratory skills, and Course Lead of the MSc Translational Neuroscience, a course which is focused on the molecular basis of neurodegeneration, and looks at how laboratory research relating to brain structure and function informs the development of new therapies for diseases of the nervous system.
I was awarded a Postgraduate Certificate in Learning and Teaching in Higher Education from Sheffield Hallam University in 1999, became a Fellow of the Higher Education Academy in 2011, and a Senior Fellow of the HEA in 2019.
- Professional activities and memberships
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- Alzheimer’s Research UK Yorkshire Network Co-ordinator
- Peer review of submitted papers for journals including Acta Neuropathologica, Brain Behaviour & Immunity, Glia, Journal of Neuroimmunology, Neuropathology and Applied Neurobiology, Neuroscience Letters, FASEB and PLOS One.
- Peer review of grant applications for funding bodies including the Alzheimer’s Society, MRC, BBSRC and NC3Rs.
- Ethics reviewer for the School of Medicine
Membership of Associations and Societies
- British Neuropathological Society
- British Neuroscience Association
- Pathological Society