Project description:The risk of sepsis is particularly high in neonates compared to older children and adults; however the reasons behind are incompletely understood. Macrophages are at the front line of the innate immune system and differentiate from monocytes after infiltrating the infected tissue. We studied transcriptional differences between cord blood-derived in vitro activated macrophages and adult peripheral blood derived in vitro actiavted macrophages. We used microarrays to detail the global programme of gene expression in cord blood derived M(IL-10) and M(IFN-γ) and in adult blood derived M(IL-10) and M(IFN-γ)macropahges
Project description:To identify the differences between human umbilical cord blood and peripheral blood monocytes, we performed unsupervised bioinformatic analyses by microarrays.
Project description:Macrophages are at the front line of the innate immune system and differentiate from monocytes after infiltrating the infected tissue. Metabolic pathways are central to macrophage biology. We studied transcriptional differences between Rapamycin treated in vitro activated macrophages and untreated peripheral blood derived in vitro actiavted macrophages. We used microarrays to detail the global programme of gene expression in Rapamycin treated adult blood derived M(IL-10) and M(IFN-γ) macrophages and untreated adult blood derived M(IL-10) and M(IFN-γ)macropahges
Project description:A phenotypically and functinoally distinct subset of human blood dendritic cells expressing CD11b is specific of the neonatal environment. We have employed whole genome microarray expression profiling to identify the specific gene signature of CD11b+ cord blood dendritic cells as compared to their adult peripheral blood counterparts. Peripheral blood adult cDC2 (CD20- CD11c+ CD14- BDCA1+ CD11b- ), neonatal cord blood cDC2 (CD20- CD11c+ CD14- BDCA1+ CD11b-) and neonatal cord blood cDC2b (CD20- CD11c+ CD14- BDCA1+ CD11b+) were FACS purified from BDCA1+ magnetically. Neonatal monocytes (CD11c+ CD14+) and neonatal naive T cells (CD3+ CD4+ CD56- CD25- CD45RO-) were used as controls.