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Phosphopeptides from primary microglia

ABSTRACT: phosphopeptides were isolated from primary microglia, and identified by LC-MS/MS analysis.

ORGANISM(S): Mus Musculus (mouse)

SUBMITTER: Taisuke Tomita

PROVIDER: PXD040217 | JPOST Repository | Fri Feb 24 00:00:00 GMT 2023

REPOSITORIES: jPOST

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Project description:The ontogeny of human Langerhans cells (LCs) remains poorly characterized, in particular the nature of LC precursors and the factors that may drive LC differentiation. Through a systematic transcriptomic analysis of TSLP-activated dendritic cells (DCs), we unexpectedly identified markers that have been associated with a skin-homing potential as well as with a LC phenotype. We performed transcriptomic analysis of TSLP-activated blood DCs, as compared to freshly purified, Medium-, and TNF-activated DCs. Among TSLP up-regulated genes, we identified molecules associated with skin homing, LC phenotype, and LC function, as determined by a literature-based survey. Conversely, genes not expressed in LCs were not found among TSLP-induced genes. Further experiments showed that TGF-? synergized with TSLP leading to the differentiation of blood BDCA-1+ DCs into bona fide Birbeck granule-positive LCs. The ontogeny of human Langerhans cells (LCs) remains poorly characterized, in particular the nature of LC precursors and the factors that may drive LC differentiation. Through a systematic transcriptomic analysis of TSLP-activated dendritic cells (DCs), we unexpectedly identified markers that have been associated with a skin-homing potential as well as with a LC phenotype. We performed transcriptomic analysis of TSLP-activated blood DCs, as compared to freshly purified, Medium-, and TNF-activated DCs. Among TSLP up-regulated genes, we identified molecules associated with skin homing, LC phenotype, and LC function, as determined by a literature-based survey. Conversely, genes not expressed in LCs were not found among TSLP-induced genes. Further experiments showed that TGF-? synergized with TSLP leading to the differentiation of blood BDCA-1+ DCs into bona fide Birbeck granule-positive LCs. Dendritic cells (DC) were purified from the blood of healthy human donors. Each replicate comes from a different donor. There are 6 freshly purified samples (Control_0h), 4 DC samples cultured during 6h with no additional stimulus than the medium (Control_6h), 5 samples cultured during 6h with recombinant TSLP (Thymic Stromal Lymphopoietin at 20 ng/uL) (TSLP_6h) and 3 samples cultured during 6h with recombinant TNF (Tumor necrosis factor at 20 ng/mL) (TNF_6h).

			Action	DRS
	220730_Iguchi_pMGphos_protein.xlsx	Xlsx
	Inpp5d1-1.raw	Raw
	Inpp5d1-2.raw	Raw
	Inpp5d2-1.raw	Raw
	Inpp5d2-2.raw	Raw

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Phosphopeptides from primary microglia

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