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Development of monoclonal antibodies to the malondialdehyde-deoxyguanosine adduct, pyrimidopurinone. 1997

C L Sevilla, and N H Mahle, and N Eliezer, and A Uzieblo, and S M O'Hara, and M Nokubo, and R Miller, and C A Rouzer, and L J Marnett
Proteins International, Rochester Hills, Michigan 48309, USA.

Malondialdehyde (MDA), an endogenous product of lipid peroxidation and prostaglandin biosynthesis, is mutagenic in bacterial and mammalian cells and carcinogenic in rats. In order to determine whether MDA-modified bases are formed in nucleic acids in vivo, sensitive immunoassays to detect MDA-DNA and MDA-RNA adducts are being developed in our laboratory. Murine monoclonal antibodies reactive with the MDA-deoxyguanosine adduct 3-beta-D-erythro-pentofuranosylpyrimido[1,2-alpha]purin-10(3H)-one (M1G-R) were prepared and characterized. Several MDA-modified nucleosides and deoxynucleosides and structural analogs were synthesized and characterized and were compared as competitive inhibitors in enzyme-linked immunosorbent assays (ELISAs). Less than 5 fmol of M1G in MDA-modified DNA was detected in a direct ELISA, and antibody binding to the modified DNA was competitively inhibited by free M1G-dR. DNA from Salmonella typhimurium treated with concentrations of MDA that induce reversion to histidine prototrophy was enzymatically digested, and M1G-dR was quantitated by competitive ELISA. Over a range of MDA concentrations from 10 to 40 mM, the level of M1G residues in bacterial DNA increased from 0.2 to 2.5/10(6) base pairs.

UI MeSH Term Description Entries
D008315 Malondialdehyde The dialdehyde of malonic acid. Malonaldehyde,Propanedial,Malonylaldehyde,Malonyldialdehyde,Sodium Malondialdehyde,Malondialdehyde, Sodium
D008807 Mice, Inbred BALB C An inbred strain of mouse that is widely used in IMMUNOLOGY studies and cancer research. BALB C Mice, Inbred,BALB C Mouse, Inbred,Inbred BALB C Mice,Inbred BALB C Mouse,Mice, BALB C,Mouse, BALB C,Mouse, Inbred BALB C,BALB C Mice,BALB C Mouse
D003849 Deoxyguanosine A nucleoside consisting of the base guanine and the sugar deoxyribose.
D004247 DNA A deoxyribonucleotide polymer that is the primary genetic material of all cells. Eukaryotic and prokaryotic organisms normally contain DNA in a double-stranded state, yet several important biological processes transiently involve single-stranded regions. DNA, which consists of a polysugar-phosphate backbone possessing projections of purines (adenine and guanine) and pyrimidines (thymine and cytosine), forms a double helix that is held together by hydrogen bonds between these purines and pyrimidines (adenine to thymine and guanine to cytosine). DNA, Double-Stranded,Deoxyribonucleic Acid,ds-DNA,DNA, Double Stranded,Double-Stranded DNA,ds DNA
D004269 DNA, Bacterial Deoxyribonucleic acid that makes up the genetic material of bacteria. Bacterial DNA
D006825 Hybridomas Cells artificially created by fusion of activated lymphocytes with neoplastic cells. The resulting hybrid cells are cloned and produce pure MONOCLONAL ANTIBODIES or T-cell products, identical to those produced by the immunologically competent parent cell. Hybridoma
D006868 Hydrolysis The process of cleaving a chemical compound by the addition of a molecule of water.
D000171 Acrolein Unsaturated three-carbon aldehyde. 2-Propenal,Acraldehyde,Acrylaldehyde,Acrylic Aldehyde,Allyl Aldehyde,Aqualin,Ethylene Aldehyde,2 Propenal,Aldehyde, Acrylic,Aldehyde, Allyl,Aldehyde, Ethylene
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D000911 Antibodies, Monoclonal Antibodies produced by a single clone of cells. Monoclonal Antibodies,Monoclonal Antibody,Antibody, Monoclonal

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