Project description:To determine te lncRNA expression profile in collagen-induced arthritis rats and normal rats, we uesed lncRNA microArray analysis form Arraystar to examine the expression of lncRNAs in CIA and normal rats' synovial tissues.
Project description:The genomes of several species of mycoplasma have been sequenced. Most of these species rely on the glycolytic pathway for energy production, with the one exception of Ureaplasma, a species that breaks down urea as its principle source of acquiring energy. Several species, including as Mycoplasma arthritidis, are nonglycolytic and can use arginine as their source of energy. Described here are the genome sequence and a transposon library of M. arthritidis. The genome of 820,453 bp is typical in size for a mycoplasma and contains two large families of genes that are predicted to code for phase-variable proteins. The transposon library was constructed using a minitransposon that inserts stably into the mycoplasma genome. Of the 635 predicted coding regions, 218 were disrupted in a library of 1,100 members. Dispensable genes included the gene coding for the MAM superantigen and genes coding for ribosomal proteins S15, S18, and L15.
Project description:The progression of arthritis involves sequential regulation of catabolic and anabolic genes that degenerate cartilages. We used microarrays to determine temporal regulation of genes during the progression of monoiodoacetate-induced arthritis in the knees of rats. Experimental arthritis was induced by intra-articular injection of monoiodoacetate (2 mg/ 50 ul) in the knees of rats. Cartilages from distal end of femur were collected on day 5, 9 and 21 post-injection. Saline injection was used as a sham control.
Project description:Identify HIP1 binding proteins implicated in regulation of invasive property of Rheumatoid Arthritis (RA) fibroblast-like synoviocytes (FLS) by using FLS cell line from arthritic DA (highly invasive) and R6 (minimally invasive) arthritis-protected congenic rats, which differ in amino-acid changing HIP1 SNPs.
Project description:Bacterial virulence, persistence and defence are affected by epigenetic modifications, including DNA methylation. Solitary DNA methyltransferases modulate a variety of cellular processes and influence bacterial virulence; as part of a restriction-modification (RM) system, they act as a primitive immune system in methylating the own DNA, while unmethylated foreign DNA is restricted. We identified a large family of type II DNA methyltransferases in Metamycoplasma hominis, comprising six solitary methyltransferases and four RM systems. Motif-specific 5mC and 6mA methylations were identified with a tailored Tombo analysis on Nanopore reads. Selected motifs with methylation scores >0.5 fit with the gene presence of DAM1 and DAM2, DCM2, DCM3, and DCM6, but not for DCM1, whose activity was strain-dependent. The activity of DCM1 for CmCWGG and of both DAM1 and DAM2 for GmATC was proven in methylation-sensitive restriction and finally for recombinant rDCM1 and rDAM2 against a dam-, dcm-negative background. A hitherto unknown dcm8/dam3 gene fusion containing a (TA) repeat region of varying length was characterized within a single strain, suggesting the expression of DCM8/DAM3 phase variants. The combination of genetic, bioinformatics, and enzymatic approaches enabled the detection of a huge family of type II DNA MTases in M. hominis, whose involvement in virulence and defence can now be characterized in future work.
Project description:The progression of arthritis involves sequential regulation of catabolic and anabolic genes that degenerate cartilages. We used microarrays to determine temporal regulation of genes during the progression of monoiodoacetate-induced arthritis in the knees of rats.
