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BACKGROUND/AIM Multiple sclerosis (MS) is an inflammatory, demyelinating disease of the central nervous system. Effector T helper cells, mainly Th1 and Th17, cytotoxic T-cells, B-cells, macrophages, microglia, and the cytokines they secrete, are implicated in the initiation and maintenance of a deregulated immune response to myelin antigens and the ensuing(More)
The effect of macrolide antibiotic spiramycin on RNase P holoenzyme and M1 RNA from Escherichia coli was investigated. Ribonuclease P (RNase P) is a ribozyme that is responsible for the maturation of 5' termini of tRNA molecules. Spiramycin revealed a dose-dependent activation on pre-tRNA cleavage by E. coli RNase P holoenzyme and M1 RNA. The K s and V max,(More)
Ribonuclease P is an essential enzyme that matures the 5' ends of all primary tRNA transcripts. RNase P enzymes contain a similar in size RNA subunit which is absolutely required for catalysis. The holoenzyme from Dictyostelium discoideum possesses an essential for activity RNA subunit but the exact protein composition is still under investigation.(More)
A series of o-, m- and p-benzyl tetrazole derivatives 11a-c has been designed, synthesized and evaluated as potential Angiotensin II AT1 receptor antagonists, based on urocanic acid. Compound 11b with tetrazole moiety at the m-position showed moderate, however, higher activity compared to the o- and p-counterpart analogues. Molecular modelling techniques(More)
A series of symmetrically bis-substituted imidazole analogs bearing at the N-1 and N-3 two biphenyl moieties ortho substituted either with tetrazole or carboxylate functional groups was designed based on docking studies and utilizing for the first time an extra hydrophobic binding cleft of AT1 receptor. The synthesized analogs were evaluated for their in(More)
Background. MS patients show a remarkable heterogeneity in their response to disease modifying treatments. Given the need for early treatment initiation and the diversity of available options, a predictive marker that indicates good or poor response to treatment is highly desirable. Objective. To find a biomarker for treatment response to IFNβ among pro-(More)
BACKGROUND Glomerulonephritides (GNs) represent common causes of chronic kidney disease associated with a wide spectrum of clinical and histological features. Various factors that activate the inflammatory cascade are involved in the development of kidney injury. The aim of this study was to estimate the urinary excretion of pro-inflammatory (IL-2, INF-γ,(More)
Bone marrow transplantation (BMT) was introduced as a treatment option 15 years ago for severe, drug-resistant multiple sclerosis (MS). Up until now, BMT has been undertaken in relatively few patients worldwide, with moderate success, and recent studies suggest that patients with early, highly aggressive MS benefit most from this treatment. In this work, we(More)
RNase P is an essential and ubiquitous endonuclease that mediates the maturation of the 5' ends of all precursor tRNA molecules. The holoenzyme from Dictyostelium discoideum possesses RNA and protein subunits essential for activity, but the exact composition of the ribonucleoprotein complex is still under investigation. Bioinformatic analysis of D.(More)
Catalytic RNAs, known as ribozymes, act as true enzymes and are implicated in important biological processes, such as protein synthesis, mRNA splicing, transcriptional regulation and retroviral replication. Ribozymes are capable of serving as a new molecular target for a variety of drugs and as a reliable screening system for their biological activity.