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Systems-level analysis of peripheral blood gene expression in dementia patients reveals an innate immune response shared across multiple disorders [ftd]

ABSTRACT: Systems-level analysis of peripheral blood gene expression in dementia patients reveals an innate immune response shared across multiple disorders [ftd]

PROVIDER: PRJNA591097 | ENA |

REPOSITORIES: ENA

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Systems-level analysis of peripheral blood gene expression in dementia patients reveals an innate immune response shared across multiple disorders [ftd]

Project description:The role of peripheral inflammation in dementia is an important but complex topic. We present here the largest cohort of peripheral blood gene expression data ever assembled from patients with dementia and matching controls. Importantly, this cohort includes individuals from a diverse set of dementia disorders, including Alzheimer’s Disease (AD), mild cognitive impairment (MCI), and multiple disorders within the frontotemporal dementia (FTD) spectrum. We found strong transcriptional evidence of an innate immune inflammatory response, mediated by monocytes and neutrophils, in AD, MCI, and two FTD subtypes, PSP and nfvPPA. This transcriptional inflammatory response is enriched for genetic risk for AD, in part because it is also enriched for microglial genes, which have previously been implicated in AD risk. Finally, we show that this transcriptional response is strongly enriched for binding of the transcription factors PU.1 and RELA, which have previously been linked to AD risk and progression.

2020-11-13 | GSE140830 | GEO

Systems-level analysis of peripheral blood gene expression in dementia patients reveals an innate immune response shared across multiple disorders [ad_mci]

2020-11-13 | GSE140829 | GEO

Systems-level analysis of peripheral blood gene expression in dementia patients reveals an innate immune response shared across multiple disorders

Project description:Systems-level analysis of peripheral blood gene expression in dementia patients reveals an innate immune response shared across multiple disorders

| PRJNA591096 | ENA

Systems-level analysis of peripheral blood gene expression in dementia patients reveals an innate immune response shared across multiple disorders [ad_mci]

Project description:Systems-level analysis of peripheral blood gene expression in dementia patients reveals an innate immune response shared across multiple disorders [ad_mci]

| PRJNA591098 | ENA

RNA-seq of human post-mortem brain tissue of the frontal lobe from patients with FTD and healthy controls

Project description:Understanding the molecular mechanisms underlying frontotemporal dementia (FTD) is essential for the development of successful therapies. Systematic studies on human post-mortem brain tissue of patients with genetic subtypes of FTD are currently lacking. The Risk and Modyfing Factors of Frontotemporal Dementia (RiMod-FTD) consortium therefore has generated multi-omics datasets for genetic subtypes of FTD to identify common and distinct molecular mechanisms disturbed in disease. This experiment contains data from RNA-sequencing of human post-mortem brain tissue of the frontal lobe from patients with FTD caused by mutations in GRN, MAPT or C9orf72 and healthy controls.

2023-02-17 | E-MTAB-12647 | biostudies-arrayexpress

CAGE-seq of human post-mortem brain tissue of the frontal lobe from patients with FTD and healthy controls

Project description:Understanding the molecular mechanisms underlying frontotemporal dementia (FTD) is essential for the development of successful therapies. Systematic studies on human post-mortem brain tissue of patients with genetic subtypes of FTD are currently lacking. The Risk and Modyfing Factors of Frontotemporal Dementia (RiMod-FTD) consortium therefore has generated multi-omics datasets for genetic subtypes of FTD to identify common and distinct molecular mechanisms disturbed in disease. This experiment contains data from CAGE-sequencing of human post-mortem brain tissue of the frontal lobe from patients with FTD caused by mutations in GRN, MAPT or C9orf72 and healthy controls.

2023-02-26 | E-MTAB-12646 | biostudies-arrayexpress

smRNA-sequencing of human post-mortem brain tissue of the frontal lobe from patients with Frontotemporal Dementia and healthy controls

Project description:Understanding the molecular mechanisms underlying frontotemporal dementia (FTD) is essential for the development of successful therapies. Systematic studies on human post-mortem brain tissue of patients with genetic subtypes of FTD are currently lacking. The Risk and Modyfing Factors of Frontotemporal Dementia (RiMod-FTD) consortium therefore has generated multi-omics datasets for genetic subtypes of FTD to identify common and distinct molecular mechanisms disturbed in disease. This experiment contains data from smRNA-sequencing of human post-mortem brain tissue of the frontal lobe from patients with FTD caused by mutations in GRN, MAPT or C9orf72 and healthy controls.

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Drosophila models of dementia uncover shared and specific targets of TDP-43 proteinopathy across ALS and FTD relevant circuits

Project description:Drosophila models of dementia uncover shared and specific targets of TDP-43 proteinopathy across ALS and FTD relevant circuits

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Genome-wide DNA methylation analysis identifies epigenetic differences in Alzheimer’s disease and frontotemporal dementia in brain tissue and lymphoblastoid cell lines

Project description:We have performed methylation microarray analysis of two types of dementia, Alzheimer's disease (AD) and frontotemporal dementia (FTD), using two kind of samples, frozen brain tissue and lymphoblastoid cell lines.

2024-01-01 | E-MTAB-11975 | biostudies-arrayexpress

Project description:Amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD) represent two ends of a disease spectrum with shared clinical, genetic and pathological features. These include near ubiquitous pathological inclusions of the RNA binding protein (RBP) TDP-43, and often the presence of a GGGGCC expansion in the C9ORF72 (C9) gene. Here we show unexpectedly that the signature of hnRNP H sequestration and altered splicing of target transcripts we identified in C9ALS patients (Conlon et al. 2016) also occurs in fully half of 50 post-mortem sporadic, non-C9 ALS/FTD post-mortem brains. Furthermore, and equally surprisingly, these “like-C9” brains also contained correspondingly high amounts of insoluble TDP-43, as well as several other disease-related RBPs, and this correlates with widespread global splicing defects. Finally, we show that the like-C9 sporadic patients, like actual C9ALS patients, were much more likely to have developed FTD. We propose that these unexpected links between C9 and sporadic ALS/FTD define a common mechanism in this disease spectrum.

2018-07-13 | GSE116622 | GEO

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