Project description:Non-alcoholic fatty liver disease (NAFLD) is the most common chronic liver disorder in developed countries, with extremely limited therapeutic options. MYC is a highly pleiotropic transcription factor with broad biological functions. However, the effect of intestinal MYC on metabolic diseases has not been studied. Here, an unexpected role for intestinal MYC in NAFLD was uncovered. MYC was increased in ileum biopsies from obese people and positively correlated with body-mass index. Intestine-specific reduction of MYC in mice improved high-fat diet (HFD) -induced obesity and hepatic steatosis. Mechanistically, reduced expression of MYC in the intestine promoted glucagon-like peptide-1 (GLP-1) production and secretion via upregulating carbohydrate-responsive element binding protein (ChREBP) and solute carrier family 2, member 2 (GLUT2)/solute carrier family 5, member 1 (SGLT1), respectively. Furthermore, 10058-F4, a MYC inhibitor, had therapeutic effects on HFD-induced metabolic disorders, accompanied by increased GLP-1 and reduced ceramides in the serum. This study highlights intestinal MYC as a putative drug target against NAFLD.
Project description:Solute Carrier Family 6 Member 15 (SLC6A15) has been found with dysregulated expression in several kinds of cancers. However, its expression pattern and biological functions in papillary thyroid cancer (PTC) remain unknown. To explore the role of SLC6A15 in PTC, transcription profiling analysis was performed in KTC1 cells with or without SLC6A15 overexpression.
Project description:The existence of conventional dendritic cells (cDCs) has not yet been demonstrated outside mammals. In this paper, we identified bona fide cDCs in chicken spleen. Comparative profiling of global and of immune response gene expression, morphology, and T cell activation properties show that cDCs and macrophages (MPs) exist as distinct mononuclear phagocytes in chicken, resembling their human and mouse cell counterparts. Using computational analysis, core gene expression signatures for cDCs, MPs, T and B cells across chicken, human and mouse were established, which will facilitate the identification of these subsets in other vertebrates. Overall this study, by extending the newly uncovered cDC and MP paradigm to chicken, suggests that the generation of these two phagocyte lineages occurred before the reptile to mammal and bird transition in evolution. It opens avenues for the design of new vaccines and neutraceuticals that are mandatory for the sustained supply of poultry products in the expanding human population.
Project description:Expression of known and predicted genes in tissues of Gallus gallus (chicken) pooled from multiple healthy individuals. Two-colour experiments with two different tissues hybridized to each array. Each tissue is arrayed in replicate with dye swaps. Tissues: Bursa of Fabricius, Cerebellum, Cerebral cortex, Eye, Femur with bone marrow, Gallbladder, Gizzard, Heart, Intestine, Kidney, Liver, Lung, Muscle, Ovary, Oviduct, Skin, Spleen, Stomach, Testis, Thymus
Project description:RNA-Seq was carried out in order to obtain the expression profile of Solute Carrier Family (SLC) of proteins in two commonly used celllines. We were specifically interested in the subset of SLCs that are capable of transporting amino acids.