Project description:The aim of the present study was to determine the effects of glucuronides of oleanolic acid (GlcUAOA) extracted from Calendula officinalis flower on the profile of immunogenic proteins of somatic extract of infective H. polygyrus bakeri L3 stage.
Project description:To identify genes affected by miR-766-5p overexpression, we transfected with 10nmol of miR-766-5p or miR-negative control (NC) in HCT116-/-, or MIAPaCa2 cells. After 2 days, RNA was extracted, and then expression analysis was performed using agilent microarray.
Project description:Tn antigen (Tn), a single N-acetylgalactosamine (GalNAc) monosaccharide attached to protein Ser and Thr residues, is found on most solid tumors yet rarely detected in adult tissues: featuring it one of the most distinctive signatures of cancers. Although it is prevalent in cancers, Tn-glycosylation sites are not entirely clear owing to the lack of suitable technology. Knowing the Tn-glycosylation sites will spur the development of the new vaccines, diagnostics, and therapeutics of cancers. Here, we report a novel technology named EXoO-Tn for large-scale mapping of Tn-glycosylation sites. EXoO-Tn utilizes glycosyltransferase C1GalT1 and isotopically-labeled UDP-Gal(13C6) to tag and convert Tn to Gal(13C6)-Tn. This exquisite Gal(13C6)-Tn structure is recognized by a human-gut-bacterial enzyme, called OpeRATOR, that specifically cleaves N-termini of the Gal(13C6)-Tn-occupied Ser and Thr residues to yield site-containing glycopeptides. The enzymes C1GalT1 and OpeRATOR could be used concurrently in one-pot. The effectiveness of EXoO-Tn was evaluated by analyzing Jurkat cells, where 947 Tn-glycosylation sites from 480 glycoproteins were mapped. Bioinformatic analysis of the identified site-specific Tn-glycoproteins revealed conserved motif, cellular localization, relative position in proteins, and mapped site-specific Tn-glycoproteome in different studies. Given the significance of Tn in cancers, EXoO-Tn is anticipated to have broad utilities in clinical study of cancers.
Project description:Cornus officinalis Sieb. et Zucc., a perennial woody plant which is recognized with high medicinal, economic and ecological values, has been used as traditional Chinese medicine (TCM) for thousands of years in China. Modern pharmacological research has revealed that cornel iridoid glycosides (CIGs, e.g. loganin and morroniside) in dried pericarp of C. officinalis have significant medicinal activities for strengthening immune functions. However, little is known on the molecular processes responsible for the medical properties of this species, owing to the absence of genomic resources such as available sequences of key enzyme genes in biosynthetic pathways. In this study, the RNA sequencing data of C. officinalis were first generated and used for transcriptome analysis. A total of 54,827 unigenes with an average length of 817 bp, an N50 of 1,379 bp, and an average GC content of 44.91% were yielded by de novo assembly, of which 31,780 unigenes were successfully annotated. As potential molecular markers, 121, 118, 96, 89, and 82 transcription factors belonged to bHLH, MYB, PHD, WRKY, and AP2-ERF were further analyzed, respectively. The results of qRT-PCR confirmed that geraniol 10-hydroxylase (G10H) and loganin synthase (SLS) were differentially expressed in fruits and leaves during different growing stages. Furthermore, we found that loganin accumulation was positively related to G10H expression but was negatively correlated with SLS expression. Collectively, the genomic information and gene expression results presented in this study will be helpful for future studies on gene discovery and molecular process of loganin synthesis in C. officinalis.
Project description:In this study, we performed LC-QTOFMS-based metabolomics and RNA-seq based transcriptome analysis using seven tissues of C. officinalis.