Project description:Tuberculosis (TB) remains a major public health problem and we lack a comprehensive understanding of how Mycobacterium tuberculosis (M. tb) infection impacts host immune responses. We compared, at two timepoints, the induced immune response to TB antigen, BCG and IL-1β stimulation between latently M. tb infected individuals (LTBI) and active TB patients. The immune response was assessed using the TruCulture system with a Null stimulation. samples were tested by Ultrahigh Performance Liquid Chromatography-Tandem Mass Spectroscopy (UPLC MS/MS) for a total of 696 metabolites.
Project description:Mouse livers were analyzed by lipidomics and urine by metabolomics.An Agilent Ultra-Performance Liquid Chromatography/Electrospray Ion Quadrupole Time-of-Flight-Mass Spectrometer (UPLC-ESI-QTOFMS) (Agilent, Santa Clara, CA) was utilized for lipid and other metabolites proofing in this work.
Project description:The experiment is part of a study using systems biology approach to analyze muscle gene expression and UPLC-MS based plasma lipidomics profiling data to illuminate relevant biological pathways and to find potential biomarker candidates related to statin-induced changes in muscle metabolism.
Project description:Using well-characterized cell line models for seminoma (Tcam-2, n=15) and EC (NT2, n=15), we characterized their metabolite profiles using ultraperformance liquid chromatography coupled with Q-TOF mass spectrometry (UPLC/Q-TOF MS).
Project description:Intrauterine growth restriction (IUGR) is one of the most common adverse pregnancy outcomes with high risk of perinatal morbidity and mortality, and affects up to 7% of pregnancies. Here, seven pairs of placentas were employed for whole genomic promoter DNA methylation profiling and some of the candidate differentially methylated promoters were further validated in additional twelve pairs of samples. Consistent with previous report, our results further indicated that IUGR associated placentas harbored a distinct promoter DNA hypomethylation pattern and the result was further confirmed byultra-performance liquid chromatography/tandem mass spectrometry (UPLC-MS/MS)
Project description:In order to obtain a global view on the transcriptional changes induced by the sex-inducing pheromone released by Seminavis robusta mating type plus cells (SIP+), an RNA-seq experiment was conducted. Therefore, purified SIP+ from RP-UPLC/MS was added to MT- cultures, 15 min before light onset after a prolonged dark period. MT- cultures without extract addition constituted the control conditions. Samples were taken after 15 min, 1 h and 3 h of illumination. An additional, non-treated MT- culture was harvested before illumination.
Project description:Esophageal squamous cell carcinoma (ESCC) is characterized as a metabolic disorder characterized by lipid metabolic reprogramming. To investigate the regional characteristics of ESCC patients in Xinjiang Province, China, and lipid metabolism, in this study, we described the characteristics of the serum lipid composition in Kazakh ESCC patients by performing an integrated analysis of the transcriptome and lipidomic data. Serum samples from 30 Kazakh ESCC patients and 30 healthy individuals were subjected to targeted lipid metabolomics analysis via UPLC‒MS/MS, while 3 tumor samples and matched adjacent normal tissues from 30 ESCC patients were subjected to transcriptome analysis. Compared with those in the healthy group, we observed obvious changes in the serum lipid subclass content, chain length and unsaturation in the ESCC patients. Integrated lipidomic and transcriptomic analyses revealed that unsaturated fatty acid biosynthesis, fatty acid metabolism, lipid degradation, cholesterol metabolism and the AMPK signaling pathway were enriched in tumor tissues. In addition, RT–qPCR results demonstrated that genes closely related to these pathways were differentially expressed between the ESCC group and the healthy control group. Considering the key role of AMPK in lipid metabolism, we conducted a targeted lipid metabolomics analysis on AMPK-knockdown esophageal cancer cells by UPLC‒MS/MS. These findings suggested that AMPK might be correlated with lipid metabolism in Kazakh ESCC patients, identifying potential therapeutic targets of AMPK and other lipid metabolism-related markers against the progression of ESCC.