This is to determine the regulation of gene expression in different T Cell population with short chain fatty acids. This will provide the roles of SCFAs in regulation of adaptive immunity and T-cell-mediated inflammation.
Short-chain fatty acids induce both effector and regulatory T cells by suppression of histone deacetylases and regulation of the mTOR-S6K pathway.
Specimen part, Disease
View SamplesWe examined the global gene expression pattern of T cells regulated by progesterone to gain further insights into the regulatory mechanisms of progesterone. We found 325-347 cord blood T cell genes up or down-regulated by P4 in the presence or absence of exogenous TGFb1. Peripheral blood T cells were relatively unresponsive with only 30-70 genes regulated by P4. IL-6 receptor (IL-6R) expression was greatly down-regulated by progesterone in cord blood, but not PB, T cells. Overall, these differences in gene expression are consistent with the differential responses of cord blood and peripheral blood T cells to progesterone. To gain insights into the differences of progesterone and control dendritic cells, we performed a microarray study and found ~180 genes regulated by progesterone in dendritic cells. The gene expression information suggests that progesterone has the potential to alter dendritic cell responses to cytokines, chemokine production, and migration which in combination would control T cell differentiation.
Progesterone promotes differentiation of human cord blood fetal T cells into T regulatory cells but suppresses their differentiation into Th17 cells.
Specimen part, Treatment
View SamplesThe purpose of this study was to determine and clarify the retinoic effect on the gene expression profile for mouse dendritic cells.
Retinoic acid promotes the development of Arg1-expressing dendritic cells for the regulation of T-cell differentiation.
Specimen part
View SamplesThe pathophysiology of recurrent laryngeal nerve (RLN) transection injury is rare in that it is characteristically followed by a high degree of spontaneous reinnervation, with reinnervation of the laryngeal adductor complex (AC) preceding that of the abducting posterior cricoarytenoid (PCA) muscle. Here, we aim to elucidate the differentially expressed myogenic factors following RLN injury that may be at least partially responsible for the spontaneous reinnervation. F344 male rats underwent RLN injury or sham surgery (n=12). One week after RLN injury, larynges were harvested following euthanasia. mRNA was extracted from PCA and AC muscles bilaterally, and microarray analysis was performed using a full rat genome array. Microarray analysis of denervated AC and PCA muscles demonstrated dramatic differences in gene expression profiles, with 205 individual probes that were differentially expressed between the denervated AC and PCA muscles, and only 14 genes with similar expression patterns. The differential expression patterns of the AC and PCA suggest different mechanisms of reinnervation. The PCA showed the gene patterns of Wallerian degeneration, while the AC expressed the gene patterns of reinnervation by adjacent axonal sprouting. This finding may reveal important therapeutic targets applicable to RLN and other peripheral nerve injuries.
Microarray Analysis Gene Expression Profiles in Laryngeal Muscle After Recurrent Laryngeal Nerve Injury.
Sex, Specimen part, Treatment
View SamplesThis is to determine the T cell genes regulated by retinoic acid.
Complementary roles of retinoic acid and TGF-β1 in coordinated expression of mucosal integrins by T cells.
Specimen part
View SamplesThe purpose of this study was to determine the gene expression patterns of the colon of GPR41 KO and GPR43 KO mice in response to ETOH treatment
Short-chain fatty acids activate GPR41 and GPR43 on intestinal epithelial cells to promote inflammatory responses in mice.
Specimen part
View SamplesTo identify the genes that are induced by progesterone in T cells, naive mouse CD4+ T cells were treated with progesterone and TGFb1 or just TGFb1 alone. Then, Affymetrix gene chips were used to determine the T cell gene expression change with progesterone treatment.
No associated publication
Specimen part
View SamplesMouse spleen B cells were activated with sodium acetate (10 mM) for 5 days and the transcriptome change was determined with microarrays.
No associated publication
Specimen part
View SamplesThis is to determine in vivo kidney tissue gene expression regulated by acetate feeding in drinking water into mice for 6 weeks.
Chronically Elevated Levels of Short-Chain Fatty Acids Induce T Cell-Mediated Ureteritis and Hydronephrosis.
Specimen part
View SamplesInadequate protein intake initiates an accommodative response with adverse changes in skeletal muscle function and structure. mRNA level changes due to short-term inadequate dietary protein might be an early indicator of accommodation. The aims of this study were to assess the effects of dietary protein and the diet-by-age interaction on the skeletal muscle transcript profile. Self-organizing maps were used to determine expression patterns across protein trials.
The skeletal muscle transcript profile reflects accommodative responses to inadequate protein intake in younger and older males.
Sex
View Samples