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Gene expression profile of MDL-860-treated RD cells

ABSTRACT: To analyze gene expression of RD cells after treatment with an anti-picornavirus compound MDL-860, we have employed whole genome microarray expression profiling as a discovery platform. Human RD cells were treated with mock or MDL-860 (final concentration of 20 uM) for 24 hours. A cluster of genes regulated Nrf2-Keap1 antioxidant pathway were identified by gene ontology analysis.

ORGANISM(S): Homo sapiens

PROVIDER: GSE97542 | GEO | 2017/06/28

SECONDARY ACCESSION(S): PRJNA382236

REPOSITORIES: GEO

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Homo sapiens

Project description:Gene expression profile of MDL-860-treated RD cells

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Chemical Modulation of Glycolysis Regulates the KEAP1-NRF2 Pathway Through a Metabolite-Induced Posttranslational Modification

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2018-10-22 | GSE116642 | GEO

Haemophilus influenzae Rd KW20 strain:Rd

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Project description:Bacterial outer membrane vesicles (OMVs) have important biological roles in pathogenesis and intercellular interactions, but a general mechanism of OMV formation is lacking. Here we show that the VacJ/Yrb ABC transport system, a proposed phospholipid (PL) transporter, is involved in OMV formation. Deletion or repression of VacJ/Yrb increases OMV production in two distantly related Gram-negative bacteria, Haemophilus influenzae and Vibrio cholerae. Within our studies we also analyzed the proteome of the OMV and outer membrane (OM) and found no massive alteration in Haemophilus influenzae Rd KW20, Rd ∆yrbE and Rd ∆vacJ. Lipidome analyses demonstrate that OMVs from VacJ/Yrb-defective mutants in H. influenzae are enriched in PLs and certain fatty acids. Furthermore, we demonstrate that OMV production and regulation of the VacJ/Yrb ABC transport system respond to iron starvation. Our results suggest a new general mechanism of OMV biogenesis based on PL accumulation in the outer leaflet of the outer membrane. This mechanism is highly conserved among Gram-negative bacteria, provides a means for regulation, can account for OMV formation under all growth conditions, and might have important pathophysiological roles in vivo.

2016-01-27 | PXD003249 | Pride

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