Anti-inflammatory effect of grape proanthocyandins (PAC) in vitro.
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA702807 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:PAC polymers of different degrees of polymerization (DP) were used to stimulate murine RAW macrophages.
2021-02-19 | GSE167063 | GEO
Project description:Although the anti-cancer properties of Oligomeric Proanthocyanidins (OPCs) from grape seeds has been well recognized, the molecular mechanisms by which they exert anti-cancer effects are poorly understood. In this study, through comprehensive RNA-sequencing based gene-expression profiling in multiple colorectal cancer cell lines, we for the first time illuminate the genome-wide effects of OPCs from grape seeds in colorectal cancer. Our data revealed that OPCs affects several key cancer-associated genes. In particular, genes involved in cell cycle and DNA replication were most significantly and consistently altered by OPCs across multiple cell lines. Intriguingly, our in vivo experiments showed that OPCs was significantly more potent at decreasing xenograft tumor growth compared to the unfractionated grape seed extract (GSE) that includes the larger polymers of proanthocyanidins. These findings were further confirmed in colorectal cancer patient-derived organoids, wherein OPCs more potently inhibited the formation of organoids compared to GSE. Further, we validated alteration of cell cycle and DNA replication associated genes in cancer cell lines, mice xenografts as well as patient-derived organoids. Overall, this study provides an unbiased and comprehensive look at the mechanisms by which OPCs exerts anti-cancer properties in colorectal cancer.
2018-02-28 | GSE109607 | GEO
Project description:The objective of the experiment was to compare the performance of PAC and FASP.
2024-06-16 | PXD044349 | Pride
Project description:Effect of GA on PAC and PAO1 treated Arabidopsis seeds. Seeds were treated during 20h with paclobutrazol (PAC) or with lyophilized extracts of Pseudomonas aeruginosa liquid culture medium (PAO1). Experiments were also performed with exogenous application of gibberellic acid.
2018-06-05 | GSE115272 | GEO
Project description:A screen of 5 anti-inflammatory compounds for their effects in explanted, cultured rat spinal cord slices. All injured (explanted) cords are cultured for 4 hrs.
2010-06-05 | E-GEOD-633 | biostudies-arrayexpress
Project description:Under conditions of erythrolytic stress, which accompanies many disease states, macrophages play key roles in phagocytosing damaged RBCs and preventing the toxic effects of cell-free hemoglobin and heme to maintain homeostasis. Using a genetic mouse model of spherocytosis and single-cell RNA sequencing, we show that erythrolytic stress promotes expansion of a specific macrophage population in the liver (which we named “erythrophagocytes”) expressing high levels of Marco and Hmox1 and low levels of MHC class II related genes with an anti-inflammatory gene expression signature. We confirmed the strong anti-inflammatory function of erythrophagocytes in two models of sterile inflammatory liver disease: anti-CD40 antibody-induced systemic inflammation syndrome with necrotizing hepatitis and diet-induced nonalcoholic fatty liver disease (NAFLD). The unique anti-inflammatory phenotype and function of erythrophagocytes was reproduced in vitro by heme-exposure of mouse macrophages, yielding a transcriptional profile that segregated heme-polarized from classical M1- and M2-polarized cells. The phenotype of anti-inflammatory erythrophagocytes coincided with NFE2L2/NRF2 driven gene expression and was abolished in Nfe2l2/Nrf2-deficient macrophages. Our findings point to a novel pathway that regulates macrophage functions to link RBC homeostasis and heme metabolism with innate immunity.
2020-08-13 | GSE146152 | GEO
Project description:Anti-inflammatory properties of deep sea water in-vitro and in-vivo models of inflamed intestinal epithelium
| PRJNA600251 | ENA
Project description:The direct communication between our central nervous and inflammatory signalling systems is a well-recognised, yet poorly understood relationship. To increase our understanding of this relationship, we examined the metabolism of serotonin and its precursor tryptophan in macrophages under inflammatory settings. Both are involved in inflammatory signalling and known to play a major role in mood regulation. Tryptophan depletion by macrophages during inflammation can consequently result in a reduction of serotonin systemically and has been suggested to cause depression. Increased understanding of this system could help overcome the problem of treatment resistant depressed patients. To this end, we treated primary human monocyte derived macrophages with a range of anti-depressant/anti-inflammatory drugs and analysed their transcriptional profile under various inflammatory conditions. In addition to the classic endotoxic driver of inflammation, LPS, we also used IFNα which is a constitutive cytokine shown to directly induce depression when administered in high doses. The anti-depressant drugs were not found to have any significant effects on macrophage inflammatory signalling. However, the anti-inflammatories drugs were found to alter components of the serotonin/tryptophan metabolism pathways. This study increases our understanding of the intricacies of immune/mood cross-talk and offers into developing anti-inflammatories as co-treatment for depression. We treated human primary macrophage cells with anti-inflammatory or anti-depressant drugs and analysed their transcriptional effects during inf.lammatory signaling within the context of tryptophan metabolism/kynurenic metabolism.
2018-01-01 | GSE85333 | GEO
Project description:We show here the transcriptional response in the distal small intestine of mice gavaged with two different PAC fractions
2021-03-04 | GSE168138 | GEO