Search results for " DNA"
showing 10 items of 2475 documents
Acetylcysteine therapy for chronic hepatitis C: are its effects synergistic with interferon alpha? A pilot study.
2008
This trial reports the 6-month results of a pilot study using lymphoblastoid interferon alpha (IFNalpha) and acetylcysteine (N-acetylcysteine) separately and in combination in patients with chronic hepatitis C, genotype 1b, who were nonresponders to previous treatment with recombinant IFNalpha alone.21 patients were randomly divided into three groups of seven each. Group A was treated with lymphoblastoid IFNalpha 6MU three times a week for 6 months; group B received the same schedule of lymphoblastoid IFNalpha as group A plus acetylcysteine 1200 mg/day per os in two administrations, and group C received only acetylcysteine 1200 mg/day per os in two administrations.Mean serum alanine aminotr…
Identification of Metastasis Associated Antigen 1 (MTA1) by Serological Screening of Prostate Cancer cDNA Libraries
2008
Over the past 10 years the serological analysis of recombinant cDNA expression libraries (SEREX) has proved to be an effective method for the identification of tumour antigens. In the present study, two prostate cancer libraries were constructed and screened using autologous sera. Fifty five genes were isolated, including 46 known genes and 9 previously uncharacterised genes. Among the known genes, a metastasis-associated gene, MTA1, previously identified by differential cDNA hybridisation, was preferentially expressed in a panel of malignant tissues compared with normal tissues, as analysed by reverse transcriptase-polymerase chain reaction (RT-PCR). MTA1 transcripts were observed to be ov…
Peptides from NM23B - A Transcription Factor with NDP Kinase Activity - Are Expressed on the Surface of Leukemic Cells and Are Recognized by T-Lympho…
2005
Abstract Objective: During the last years a growing number of MHC-restricted antigens were recognized using autologous or HLA-matched cytotoxic T-cell lines (TCL). Molecules were isolated by HPLC or identified using cDNA expression cloning from normal or malignant target cells and found to derive from normal proteins or from mutated tumor-specific proteins. The majority of the tumor-specific peptides were derived from melanoma cells. The aim of this project was to search for immunogenic peptides on leukemia cells with the help of TCLs obtained from a stem cell donor against chronic myelogenous leukaemia (CML) recipient cells and to identify the immunogenic peptides by cDNA expression clonin…
MLML2R
2019
R package for maximum likelihood estimation of DNA methylation and hydroxymethylation proportions.
VIII Congresso del Dipartimento di Biologia Cellulare e dello Sviluppo
2011
2007
We have recently demonstrated that the rheumatoid arthritis (RA) shared epitope (SE) acts as a ligand that triggers nitric oxide (NO) signaling in opposite cells. Given the known pro-oxidative effect of NO and the proposed role of oxidative stress in the pathogenesis of RA, this study explores whether SE-triggered signaling can increase cellular oxidative stress. cAMP levels, adenylyl cyclase activity, and protein kinase A activity were measured using commercial kits. Generation of reactive oxygen species (ROS) was quantified using the fluorochrome dichlorofluorescein diacetate. Oxidative DNA damage was quantified using the single-cell electrophoresis technique. Here, we report that cells e…
Interaction of a Recombinant Prion Protein with Organo-Mineral Complexes as Assessed by FT-IR and CPMAS 13C NMR Analysis
2010
Prion proteins are considered as the main agents for the Transmissible Spongiform Encephalopathies (TSE). The misfolded form, PrP Sc , which is also indicated as the etiological agent for TSE, exhibits high resistance to degradation in environmental processes. Soil contamination by prion proteins is a real environmental issue since contaminated soils can become potential reservoir and diffuser for TSE infectivity. In this work, the interaction of prion protein with organo- mineral complexes was studied by using a recombinant non pathogenic prion protein and a model soil system. This latter was represented by a soil manganese mineral coated with polymerized catechol. FT-IR spectra showed ami…
DNA Sensors for the Detection of Biomolecules and Biochemical Conditions
2017
PCR-Based Site-Specific Mutagenesis
1998
The alteration of gene structure through the substitution of specific nucleotides by site-specific mutagenesis is an important tool in modern recombinant DNA technology. Nucleotide changes are necessary not only for the analysis of the structural basis of gene and corresponding protein function, but also for the generation of novel gene products. The availability of the polymerase chain reaction (PCR) in the last decade has enabled the modification of DNA for different needs to be made more rapidly and easily than was previously possible. In the course of mutagenesis the relevant sequence changes can be introduced more readily by chemically synthesized oligonucleotide primers than by manipu…