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Multiple stages of evolutionary change in anthrax toxin receptor expression in humans

ABSTRACT: Multiple stages of evolutionary change in anthrax toxin receptor expression in humans

PROVIDER: PRJNA656946 | ENA |

REPOSITORIES: ENA

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Multiple stages of evolutionary change in anthrax toxin receptor expression in humans

Project description:The advent of animal husbandry and hunting increased human exposure to zoonotic pathogens. To understand how a zoonotic disease influenced human evolution, we studied changes in human expression of anthrax toxin receptor 2 (ANTXR2), which encodes a cell surface protein necessary for Bacillus anthracis virulence toxins to cause anthrax disease. In immune cells, ANTXR2 was 8-fold down-regulated in all available human samples compared to non-human primates, indicating regulatory changes early in the evolution of modern humans. We also observed multiple genetic signatures consistent with recent positive selection driving a European-specific decrease in ANTXR2 expression in several non-immune tissues affected by anthrax toxins. Our observations fit a model in which humans adapted to anthrax disease following early ecological changes associated with hunting and scavenging, as well as a second period of adaptation after the rise of modern agriculture.

2020-08-14 | GSE156161 | GEO

Multiple stages of evolutionary change in anthrax toxin receptor expression in humans

Project description: Not available

| S-EPMC8592990 | biostudies-literature

Expression data from anthrax lethal toxin treated primary cardiomyocytes from 1-3-day-old neonatal Balb/c mice

Project description:The activity of known anthrax lethal toxin is insufficient to account the effects on functions of cardiomyocytes. In vivo and in vitro studies showed that Anthrax lethal toxin (LeTx) induce heart damage We used microarrays to detail the global programme of gene expression underlying cellularisation and identified distinct classes of up-regulated and down-regulated genes during this process.

2018-07-07 | GSE116755 | GEO

RNA Sequencing Reveals Immunosuppressive Role of Anthrax Lethal Toxin in Human Lung Epithelial and Monocytic Cells

Project description:Using RNA-seq, we report here that anthrax lethal toxin (LeTx) induces immunosuppression in human lung epithelial cell line A549 and monocytic cell line U937.

2017-01-26 | GSE77219 | GEO

Anthrax Lethal Toxin-Inducd Gene Expression Changes in Mouse Lung

Project description:Enhanced susceptibility of A/J mice to death by systemic anthrax lethal toxin (LeTx) administration compared to the C57BL/6 strain was observed. In this study we investigated whether systemic exposure of mice to LeTx would induce gene expression changes associated with vascular/capillary leakage in lung tissue. Lungs of the less susceptible C57BL/6 strain showed 80% fewer differentially expressed genes compared to lungs of the more sensitive A/J strain.

2011-09-07 | GSE28554 | GEO

Anthrax Lethal Toxin-Inducd Gene Expression Changes in Mouse Lung

2011-09-06 | E-GEOD-28554 | biostudies-arrayexpress

Transcription profiling of mouse bone marrow derived macrophages (BMDM) treated with anthrax edema toxin (ET)

Project description:Bacillus anthracis, the causative agent of anthrax, secretes three toxin proteins: protective antigen (PA), lethal factor (LF), and edema factor (EF). PA is a transporter of LF and EF into host cells by receptor-mediated endocytosis. LF is a metalloprotease that cleaves mitogen-activated protein kinase (MAPK) kinases (MKK), while EF is an adenylate cyclase, which converts ATP to cAMP. We used microarrays to decipher the specific gene regulation in edema toxin (ET), the complex of EF and PA, treated mouse bone marrow derived macrophages. Experiment Overall Design: BMDM were treated with 1 mg/ml of ET and the RNAs were purified at 0, 2, and 4h after toxin treatment.

2008-06-16 | E-GEOD-9184 | biostudies-arrayexpress

Expression profile from anthrax edema toxin (ET) treated murine bone marrow derived macrophages (BMDM)

2007-09-28 | GSE9184 | GEO

HMVEC cells treated with vascular endothelial growth factor, anthrax edema toxin, and an Epac activator

Project description:Human microvascular endothelial cells (HMVEC) treated with vascular endothelial growth factor (VEGF), Antrhax Edema Toxin (ET), or the Epac activator, 8-pCPT-2'-O-Me-cAMP (8CPT) Human microvascular endothelial cells (HMVEC) were treated with VEGF alone or VEGF in combination with either the the Epac-specific cAMP-mimetic, 8-pCPT-2'-O-Me-cAMP (8CPT), or anthrax edema toxin (ET), an adenylyl cyclase. ET or 8CPT can inhibit VEGF-mediated chemotaxis and angiogenesis. The goal of the study was to identify genes regulated by cAMP production (ET) or by activation of Epac/Rap (8CPT) that may mitigate the effects of VEGF treatment.

2009-08-25 | GSE17777 | GEO

Anthrax toxins regulate pain signaling and can deliver molecular cargoes to Antxr2+ DRG sensory neurons

Project description:We found that intrathecal injection of anthrax edema toxin (ET), causes analgesia in adult B6J mice. In order to determine if DRG neuron transcriptional responses play a role in pain blockade, we performed a bulk RNA-seq experiment on dissected mouse DRG neurons. We report that anthrax edema toxin causes transcriptional responses in DRG neurons 2h after in vivo administration

2021-09-29 | GSE184619 | GEO

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