Project description:Analyses of ILC3s in Rorc floxed control and Id2iÎ?RORγt mice following daily treatments of tamoxifen for two weeks. Cells were sort purified as lineage negative, CD127+ CD90.2+ CCR6+ ST2- CCR6+ ILCs were sorted from the mesenteric LN of Rorc floxed control and Id2iÎ?RORγt mice following daily treatments of tamoxifen for two weeks.
Project description:Lymphatic endothelial cells (LEC) residing in lymph nodes (LN) have been shown to express genes normally restricted to one or a few tissues, termed peripheral tissue antigens (PTA). The expression of one of these PTA, tyrosinase, by LN-resident LEC has been shown to mediate peripheral T cell tolerance. We used a microarray approach to determine the gene expression profile of LN-resident LEC and blood endothelial cells as a comparison with the objective of determining the global PTA repertoire in these LN stromal populations. Skin draining and mesenteric lymph nodes were pooled from 6 week old adult C57BL/6 mice, minced, and enzymatically digested yielding single cell suspensions. Lymph node stromal cells were purified via CD45 magnetic bead negative selection and pure populations of lymphatic endothelial cells (LEC) and blood endothelial cells (BEC) were obtained via electronic cell sorting according to their expression of gp38 and CD31 (LEC: gp38+ CD31+, BEC: gp38- CD31+). Total RNA was extracted, amplified, and hybridized to Affymetrix microarrays. 3 paired independent samples of purified lymph node LEC and BEC were analyzed.
Project description:To better understand how Tritrichomonas arnold colonization impacts the reovirus-mediated proinflammatory response in mesenteric lymph nodes, we examined the transcriptional profile of mesenteric lymph nodes For RNA-sequencing single cell suspension of mesenteric lymph nodes were lysed in RLT buffer (Qiagen) and RNA was isolated
Project description:Normal gene expression in pancreatic lymph nodes compared to inguinal or mesenteric lymph nodes across different strains of mice (BALB/c, FVB, NOD, NOD.B10).
Project description:Normal gene expression in pancreatic lymph nodes compared to inguinal or mesenteric lymph nodes across different strains of mice (BALB/c, FVB, NOD, NOD.B10). Lymph nodes were excised from 12 wk old female mice (5 mice per group), and total RNA was extracted for dual dye microarray analysis.
Project description:To fully quantify differences in the lymph composition and associated dendritic cells antigenic load, from different anatomical districts and in physiological and pathological conditions, we collected the afferent lymph draining to the cervical and mesenteric lymph nodes in healthy mice. Most of the proteome present in the mesenteric afferent lymph, showed a profile of proteins involved in different metabolic pathways associated with lipoproteintransport, and lipid metabolism, such as adipocyte-type fatty acid binding protein, Apolipoproteins A, B, C and E, and phospholipid transfer proteins, consistent with the known role of the mesenteric lymph in chylomicron transport. Network analysis on the mesenteric afferent lymph unique/enriched proteome highlighted pathways associated with lipase and hydrolase activity, lipoproteins remodeling, fat digestion and absorption, triglyceride catabolism and gut-associated immune cells and cytokines responses. Among the proteome shared across tissue a brain-specific or highly enriched proteome including glia maturation factor, nerve growth factor, mesencephalic astrocyte-derived neurotrophic factor, alpha-crystallin, brain-specific isoform of glycogen phosphorylase, and proteins associated with voltage-dependent channels, were uniquely observed in the lymph harvested from the afferent lymphatics entering the deep cervical nodes. Network analysis on the afferent cervical unique/enriched proteome highlighted pathways associated with neurotransmitter release cycle, synaptic transmission, neuronal development, mitochondrial activity, and an overall CNS proteome.
Project description:To gain insight into the transcriptional program conferred to Th cells by B cells, we conducted microarray gene expression analyses of adoptively transferred OT-II cells sorted from the mesenteric lymph nodes of bone marrow chimeric control and MHCIIB-/- mice 5 days after immunization with OVA and polyI:C.
