PMID- 22043908 OWN - NLM STAT- MEDLINE DCOM- 20111221 LR - 20211020 IS - 1528-7394 (Print) IS - 1087-2620 (Electronic) IS - 0098-4108 (Linking) VI - 74 IP - 22-24 DP - 2011 TI - Development of monoclonal antibodies specific for glycated prion protein. PG - 1469-75 LID - 10.1080/15287394.2011.618976 [doi] AB - Transmissive spongiform encephalopathies (TSE) are neurodegenerative diseases characterized by depositions of abnormally folded prion protein (PrP(TSE)) in brain. PrP(TSE) is at present the only specific biochemical marker of human and animal TSE. As deposits of PrP(TSE) remain in the body for long periods, there is substantial chance of them being nonenzymatically modified by glycation. The detection of glycated PrP(TSE) may have potential to serve as a diagnostic marker. Monoclonal antibodies specific for carboxymethyl lysine/arginine-modified prion protein were prepared. Recombinant human prion protein (rhPrP) was bacterially expressed and purified by affinity chromatography. rhPrP was modified by glyoxylic acid that introduces carboxymethyl groups on lysine and arginine residues present within the molecule of the protein. Modified rhPrP (rhPrP-CML) was used for immunization of 6 mice, and 960 hybridoma cells were prepared. Screening of cell supernatants resulted in the selection of four promising clones. One of them (EM-31) strongly reacts with human and mouse recombinant PrP-CML, and three other clones react also with CML in vitro modified human and mouse brain PrP. Besides possible implication in TSE diagnostics, the antibodies may serve as tolls to advance our knowledge regarding the role of glycation in the prion pathophysiology. FAU - Dvorakova, Eva AU - Dvorakova E AD - Institute of Immunology and Microbiology, 1st Faculty of Medicine, Charles University-Prague, Studnickova 7, Prague 2, Czech Republic. FAU - Prouza, Marek AU - Prouza M FAU - Janouskova, Olga AU - Janouskova O FAU - Panigaj, Martin AU - Panigaj M FAU - Holada, Karel AU - Holada K LA - eng GR - F32 NS010335/NS/NINDS NIH HHS/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - J Toxicol Environ Health A JT - Journal of toxicology and environmental health. Part A JID - 100960995 RN - 0 (Antibodies, Monoclonal) RN - 0 (Peptides) RN - 0 (Prions) RN - 0 (Recombinant Proteins) RN - 70YDX3Z2O7 (N(6)-carboxymethyllysine) RN - 94ZLA3W45F (Arginine) RN - K3Z4F929H6 (Lysine) SB - IM MH - Animals MH - *Antibodies, Monoclonal/immunology/metabolism MH - Arginine/analogs & derivatives/chemistry/metabolism MH - Brain/immunology/metabolism MH - Glycosylation MH - Humans MH - Hybridomas/immunology/metabolism MH - Lysine/analogs & derivatives/chemistry/metabolism MH - Mice MH - Mice, Knockout MH - Mice, Transgenic MH - Peptides/chemistry/metabolism MH - Prion Diseases/*diagnosis/immunology/metabolism MH - *Prions/chemistry/metabolism MH - Recombinant Proteins/chemistry/metabolism PMC - PMC3259618 EDAT- 2011/11/03 06:00 MHDA- 2011/12/22 06:00 PMCR- 2012/01/17 CRDT- 2011/11/03 06:00 PHST- 2011/11/03 06:00 [entrez] PHST- 2011/11/03 06:00 [pubmed] PHST- 2011/12/22 06:00 [medline] PHST- 2012/01/17 00:00 [pmc-release] AID - 10.1080/15287394.2011.618976 [doi] PST - ppublish SO - J Toxicol Environ Health A. 2011;74(22-24):1469-75. doi: 10.1080/15287394.2011.618976.