Project description:Ulcerative colitis is a chronic inflammatory disorder for which a definitive cure is still missing. This is characterized by an overwhelming inflammatory milieu in the colonic tract where a composite set of immune and non-immune cells orchestrate its pathogenesis. Over the last years, a growing body of evidence has been pinpointing gut virome dysbiosis as underlying its progression. Nonetheless, its role during the early phases of chronic inflammation is far from being fully defined. Here we show the gut virome-associated Hepatitis B virus protein X, most likely acquired after an event of zoonotic spillover, to be associated with the early stages of ulcerative colitis and to induce colonic inflammation in mice. It acts as a transcriptional regulator in epithelial cells, provoking barrier leakage and altering mucosal immunity at the level of both innate and adaptive immunity. This study paves the way to the comprehension of the aetiopathogenesis of intestinal inflammation and encourages further investigations of the virome as a trigger also in other scenarios. Moreover, it provides a brand-new standpoint that looks at the virome as a target for tailored treatments, blocking the early phases of chronic inflammation and possibly leading to better disease management.
2023-02-20 | GSE204665 | GEO
Project description:Serum virome analysis in patients with liver diseases
| PRJNA749275 | ENA
Project description:virome in the liver and serum samples of Rattus norvegicus
Project description:This study aims to explore the relationship between the respiratory virome, specifically bacteriophages, HERV and the host response in ARDS and to assess their value in predicting the prognosis of ARDS.
Project description:This study describes the DNA methylation profiling using whole-genome bisulfite sequencing of mouse ES cells, either derived and maintained in 2i serum-free NDiff medium, or in the presence of serum and LIF, or maintained and derived in the presence of serum and LIF and subsequently adapted to 2i serum-free NDiff medium, or maintained and derived in the presence of 2i and LIF and subsequently adapted to 2i serum. DNA methylation profiling using whole-genome bisulfite sequencing of 14 samples, 3 different lines (E14, XT67E1, Rex/GFP-2i) of pluripotent mouse ES cells as well during conversion from 2i to serum and vice versa.
Project description:Given the gut microbiota involve aging processing, we performed comparative analysis of gut bacteriophage between older and young subjects using next-generation sequencing (NGS). In our previous study, we found that the Ruminococcaceae is higher in aged subjects comparing to young one. To identify the bacteriophage targeting to the Ruminococcaceae, we also access the composition of phage in the Ruminococcaceae (ATCC, TSD-27) after incubated with human stool samples. The Lactobacillus (ATCC, LGG) targeting phage was used as the control. The virome sequencing analysis using NGS indicated that Myoviridae are high enrich in young subjects and predominate in TSD-27 targeting phage.
Project description:We applied Solexa sequencing technology to identify normal human serum microRNA genes. Sequencing result was refered to miRBase 15.0, including 904 human miRNAs.Using this method, we found that there were total number of 513 miRNAs in normal human serum and the total copy number of the serum miRNA was 3780436.