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Comparative analyses of genome methylation in monocytes trained by cholesterol and LPS

ABSTRACT: Comparative analyses of genome methylation in monocytes trained by cholesterol and LPS

PROVIDER: PRJNA1017881 | ENA |

REPOSITORIES: ENA

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Comparative analyses of genome methylation in monocytes trained by cholesterol and LPS

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Project description:The capacity of innate immune cells to build immunological memory after a first encounter with certain pathogens or vaccines that allow them to respond stronger to reinfection is referred to as “trained immunity”. Despite few studies highlighting an important role for trained immunity in protection during COVID-19 infection or vaccination, no study so far has shown whether SARS-CoV-2 can train innate immune cells to respond stronger to a second stimuli. The aim of this study was to investigate whether this virus can induce trained immunity in human monocytes. To this purpose we used monocytes from healthy donors and exposed them to inactivated (i) SARS -CoV-2 for 24 hours followed by a resting period of several days in medium only and restimulation on day 6. On day 6, to evaluate the effects of iSARS-CoV-2 training on monocyte gene expression, transcriptomic analysis of human monocytes, before or 3h after LPS stimulation, was done. Our data provide the transcriptional profile of untrained and trained monocytes with iSARS-CoV-2.

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