Project description:Aged garlic extract (AGE) is one of the widely used garlic-based products that are extensively studied and are commercially available. However, there are no reports that compare the effects of AGE on normal cells and oral cancer cells. In the present study, we tried to investigate the effects of AGE on normal healthy cells and cancer cells. The effect of AGE on the proliferation of normal cell lines HaCaT and fibroblast, in addition to cancer cell lines SCC7, HSC2, HSC3 and Ca9-22 were evaluated by MTT assay. By contrast, the effects of AGE on cell migration were examined using wound healing and migration assays. Whole transcriptome analysis, Ingenuity Pathways Analysis (IPA) and western blot analysis were used to investigate the mechanism of action of AGE in HaCaT and SCC7 cells. Data from the aforementioned assays were then evaluated and compared to assess if AGE affects normal cells differently compared with cancer cells. AGE was found to promote the proliferation and migration of normal cells, especially HaCaT, in the absence of FBS more significantly compared with those of cancer cells. However, AGE could not promote wound healing in fibroblast cells at the same rate as in HaCaT cells. In normal cells, sequential or combination AGE treatment with 5-fluorouracil (5-FU), cisplatin (CDDP) and docetaxel (DOC) somewhat counteracted the proliferation-limiting effects of anti-cancer agents. However, in cancer cells, AGE treatments enhanced the inhibitory effects of anti-cancer agents when used in combination with 5-FU, CDDP or DOC. This observation was more evident in case of pre-treatment with anticancer agents followed by AGE sequential treatment. Subsequently, whole transcriptome analysis and IPA data suggested that AGE facilitated the proliferation and survival of normal cells through the induction of Akt and brain-derived neurotrophic factor pathways, whilst suppressing ferroptosis These data were also confirmed by western blotting to see if the genetic changes shown in whole transcriptome analysis and IPA are also induced at the protein level. In addition, AGE may reduce cancer cell proliferation through the suppression of cancer metastasis signaling and enhancement of phagocytic activity according to whole transcriptome analysis and IPA data. Taken together, these findings suggest that AGE may prompt the proliferation of normal cells and suppress the that of cancer cells through different cellular processes and signaling pathways.
Project description:We hypothesized that aged garlic extract, and a pure compound from it, FruArg, can repress the genetic response induced by lipopolysaccharide (LPS). We applied gene expression profiling to understand the potential mechanisms of the protective effects of AGE and FruArg against LPS stress in BV-2 cells. Gene expression profiling showed that AGE repressed the transcriptome alteration induced by LPS. FruArg, as an active compound in AGE, accounted for AGE's protective effects. These results suggest that AGE and FruArg are capable of alleviating oxidative and neuroinflammatory responses stimulated by LPS in BV-2 cells.
Project description:We show here the transcriptional response in CMT-93 intestinal epithelial cells treated with Trichuris muris antigen and/or a garlic extract (40% PTSO-PTS).
Project description:We show here the transcriptional response in caecum tissue of mice infected with Trichuris muris for 35 days and given either garlic extract treatment or control treatment.
Project description:Type 2 Diabetes Mellitus (T2DM) is associated with a state of chronic low-grade inflammation that severely affects the central nervous system, particularly the hypothalamus, which acts as the master regulator of energy homeostasis. This study aimed to characterize the hypothalamic transcriptomic signature in a complex murine model of T2DM induced by neonatal administration of Streptozotocin (nSTZ, 70 mg/kg) followed by a chronic High-Fat Diet (HFD, 60% kcal from fat). Given the neuroprotective properties of natural polyphenols, we evaluated the modulatory effects of Curcumin (50 mg/kg) and Aged Garlic Extract (EAE, 200 mg/kg) administered daily via oral gavage for 28 days. By employing high-throughput RNA sequencing (RNA-seq), we identified differentially expressed genes (DEGs) and perturbed molecular pathways involved in neuroinflammation, synaptic plasticity and gabaergic system. Our findings provide a comprehensive map of the gene expression changes associated with diabetic neurodegeneration and the therapeutic potential of nutraceutical interventions to restore hypothalamic function.
Project description:Obesity is a multifaceted disorder driven by the dysregulation of homeostatic mechanisms in the hypothalamus, often resulting from dietary-induced lipotoxicity and chronic neuroinflammation. This research investigates the transcriptomic shifts in the hypothalamus during the progression of High-Fat Diet (HFD) induced obesity in juvenile male C57BL/6 mice. Mice were subjected to an 8-week HFD protocol (60% kcal from fat) starting at 8 weeks of age to establish a robust obese phenotype. We explored the therapeutic efficacy of three bioactive compounds known for their antioxidant and anti-inflammatory activities: Resveratrol (2.25 mg/kg), Curcumin (50 mg/kg), and Aged Garlic Extract (200 mg/kg), administered daily during the last four weeks of the study. Through high-throughput RNA sequencing (RNA-seq), we aim to elucidate how these compounds mitigate HFD-induced transcriptomic perturbations. This study offers critical insights into the molecular basis of obesity-related neuroinflammation and identifies specific gene clusters that can be targeted by bioactive-rich dietary strategies to counteract hypothalamic dysfunction. https://doi.org/10.3390/genes17030297