Project description:DHEA-shaped gut microbiota was transplantated to pseudo germ- free rats. Glucose intolerance, liver lipid accumulation and dyslipidemia were observed in recipient rats. Therefore, liver gene expression of these recipient rats were investigated.
Project description:We performed a phase I clinical trial to assess the safety and feasibility of fecal microbiota transplantation (FMT) and re-induction of anti-PD-1 immunotherapy in patients with anti-PD-1-refractory metastatic melanoma. FMT donors were two metastatic melanoma patients who achieved a durable complete response. FMT recipient patients were metastatic melanoma patients who failed at least one anti-PD-1 line of treatment. Each recipient patient received FMT implants from only one of the two donors. FMT was conducted by both colonoscopy and oral ingestion of stool capsules, followed by anti-PD-1 re-treatment (Nivolumab, BMS). Recipient patients underwent pre- and post-treatment stool sampling, tissue biopsy of both gut and tumor, and total body imaging. Clinical responses were observed in three patients, including two partial responses and one complete response. Notably, treatment with FMT was associated with favorable changes in immune cell infiltrates and gene expression profiles in both the gut lamina propria and the tumor microenvironment.
Project description:Non-alcoholic fatty liver disease (NAFLD) has increased over the last decades and may evolve into hepatocellular carcinoma (HCC). As HCC is challenging to treat, knowledge on the modifia-ble risk factors for NAFLD/HCC, (e.g. hypercaloric diets rich in fructose) is essential. We used a model of diethyl nitrosamine-induced hepatocarcinogenesis to investigate the liver cancer-promoting effects of a diet supplemented with 10% liquid fructose, administered to male and female rats for 11 months. A subset of the fructose-supplemented rats received resveratrol in the last 4 months of treatment. We observed metabolic abnormalities mainly in the female fructose-supplemented rats (increases in weight, adiposity, and plasma glucose and triglycerides, as well as liver triglycerides and a reduced insulin sensitivity index), which were partially reversed by resveratrol. The livers of fructose-supplemented rats showed no de visu or histological evi-dence of liver tumorigenesis. Targeted analysis of 84 cancer-related genes in the female liver samples revealed expression changes associated with cancer-related pathways, but individual genes indicated that some changes increased the risk of hepatocarcinogenesis (Sfrp2, Ccl5, Socs3, and Gstp1), while others exerted a protective/preventive effect (Bcl2 and Cdh1). In conclusion, our data do not clearly demonstrate that chronic fructose supplementation promotes HCC development in rats.
Project description:This study aimed to analyze changes in gut microbiota composition in mice after transplantation of fecal microbiota (FMT, N = 6) from the feces of NSCLC patients by analyzing fecal content using 16S rRNA sequencing, 10 days after transplantation. Specific-pathogen-free (SPF) mice were used for each experiments (N=4) as controls.
Project description:We report the side-effects of High fat diet on the liver, and foud that the AOS10-FMT could rescure the side-effect of High fat diet in many factors,such as lipid metabolism and oxidative stress
Project description:Obesity is risk factor for development of fatty liver. Analysis of altered gene expression gives better understading about the mechanisms involved/alterted in the development of obesity-induced fattyliver in this new obese rat model. We used Microarrays to delinate the alted gene expression in liver of WNIN/Ob obese rats