ABSTRACT: This is a SWATH proteomic survey of ~330 BXD cohorts, including some biological and technical injection replicates, across an aging time course, with individuals from ~6 to ~24 months of age.
Project description:This SuperSeries is composed of the following subset Series: GSE20425: Hepatic gene expression during liver regeneration in response to partial hepatectomy: early time points (0.5h,1h,2h,4h) GSE20426: Hepatic gene expression during liver regeneration in response to partial hepatectomy: late time points (24h, 38h, 48h) Refer to individual Series
Project description:8-week-old wild-type 129S6/SvEvTac mice were maintained under regular iron diet (containing 330 ppm iron) or iron-enriched diet (the same standard diet supplemented with 2% carbonyl iron) for 4 weeks. 7-week-old wild-type 129S6/SvEvTac mice were maintained under iron-deficient diet (with negligible iron content) for 5 weeks. All mice were sacrificed at the age of 12 weeks. Livers were harvested and total RNA was extracted using TRIZol method followed by miRNA-enrichment using Qiagen columns. Liver RNA samples from 3 mice (female and male) from each group were sent to Exiqon for microarray analysis.
Project description:The process of liver regeneration can be divided into a series of stages that include initial inductive or priming events through cellular mitosis. Following two-thirds liver resection, the liver undergoes the “priming” phase, in which cytokines TNF-a and IL-6 activate their respective receptors in hepatocytes. This leads to the activation of several key transcription factors: NF-kB, AP-1, Stat 3, Stat 1, and C/EBP-b and -d . These transcription factors induce the expression of immediate early genes. HGF is also expressed at this time and involved in the transition of quiescent hepatocytes into the G1 phase of the cell cycle. During the G1 phase, delayed early genes are expressed followed by induction of cell cycle–related genes, both of which require new protein synthesis for their production. Increased expression of FoxM1B and TGF-a occurs at the G1/S transition and is correlated with increased expression of cyclinD1 and decreased expression of cdk inhibitors. During the G2/M phase of the cell cycle, FoxM1B directly elevates cyclinB1, cyclinB2, and cdc25B expression. Additionally, FoxM1B is associated with increased cyclinF and p55cdc, which are involved in completion of the cell cycle following partial hepatectomy. In mice, two-thirds partial hepatectomy promotes proliferation of liver cells and rapid growth of the remaining liver tissue, resulting in complete restoration of organ mass in approximately 7 days (Mackey S. et al. Hepatology 2003 Dec;38(6):1349-52). Liver tissue was collected 0h, 24h, 38h, and 48h after partial hepatectomy or sham surgery from both young (5-6 months) and old (25-27 months) CB6F1 mice. All control and partial hepatectomy samples were assayed in triplicate. Relative gene expression levels were determined using Affymetrix moe430_2 oligo arrays.
Project description:This SuperSeries is composed of the following subset Series:; GSE13221: (AKR/J x PyMT)F1 versus (DBA/2J x PyMT)F1 tumor expression data; GSE13222: (AKR/J x FVB/NJ)F1 versus (DBA/2J x FVB)F1 blood expression data; GSE13223: (AKR/J x FVB/NJ)F1 versus (DBA/2J x FVB)F1 bone marrow expression data; GSE13224: (AKR/J x FVB/NJ)F1 versus (DBA/2J x FVB)F1 lung expression data; GSE13225: (AKR/J x FVB/NJ)F1 versus (DBA/2J x FVB)F1 spleen expression data; GSE13227: (AKR/J x FVB/NJ)F1 versus (DBA/2J x FVB)F1 Thymus expression data; GSE13230: Met1 or DB7 tumor gene expression Experiment Overall Design: Refer to individual Series
Project description:Transcriptomic analysis on white adipose tissues (WAT), brown adipose tissues (BAT), skeletal muscles and liver from cold-exposed obese mice treated with KPT-330 or DMSO, and those from obese mice housed at ambient temperature indicated that KPT-330 profoundly modulates immune responses in these thermogenic tissues and organs.
Project description:We describe "Aird", an opensource and computation-oriented format with controllable precision, flexible indexing strategies, and high compression rate. Aird provides a novel compressor called Zlib-Diff-PforDelta (ZDPD) for m/z data. Compared with Zlib only, m/z data size is about 55% lower in Aird on average. With the high-speed decoding and encoding performance brought by the Single Instruction Multiple Data(SIMD) technology used in the ZDPD, Aird merely takes 33% decoding time compared with Zlib. We used the open dataset HYE, which contains 48 raw files from SCIEX TripleTOF 5600 and TripleTOF6600. The total file size is 206GB as the vendor format. The total size increases to 854GB after converting to mzML with 32-bit encoding precision. While it takes only 189GB when using Aird. Aird uses JavaScript Object Notation (JSON) for metadata storage. Aird-SDK is written in Java and AirdPro is a GUI client for vendor file converting which is written in C#. They are freely available at https://github.com/CSi-Studio/Aird-SDK and https://github.com/CSi-Studio/AirdPro.
Project description:A striking property of the ancient and obligate mutualism between figs and their pollinating wasps is that fig wasps consistently oviposit in the inner flowers of the fig syconium (gall flowers, which develop into galls that house developing larvae), but typically do not use the outer ring of flowers (seed flowers, which develop into seeds). To better understand differences between gall and seed flowers that might influence oviposition choices, and the unknown mechanisms underlying gall formation, we used a metatranscriptomic approach to analyze eukaryotic gene expression within fig flowers at the time of oviposition choice and early gall development. Consistent with the unbeatable seed hypothesis, which posits that only a portion of fig flowers are physiologically capable of responding to gall induction or supporting larval development, we found significant differences in gene expression assigned to defense and metabolism between gall- and seed flowers in receptive syconia. Transcripts assigned to flavonoids and defense were especially prevalent in receptive gall flowers, and carbohydrate metabolism was significantly up-regulated relative to seed flowers. In turn, high expression of the venom gene icarapin during wasp embryogenesis within galled flowers distinguishes it as a candidate gene for gall initiation. In response to galling, the fig significantly up-regulates the expression of chalcone synthase, which previously has been connected to gall formation in other plants. This study simultaneously evaluates the gene expression profile of both mutualistic partners in a plant-insect mutualism and provides evidence for a stability mechanism in the ancient fig-fig wasp association. We examined two different Ficus flower types at two different time points. Each sample contained a pool of hundreds of individual flowers from multiple sycomia.