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LMB-9 immunotoxin definition: A toxic substance linked to an antibody that attaches to tumor cells and kills them.
LMB-9 immunotoxin definition: A recombinant disulfide stabilized anti-Lewis Y IgG immunotoxin containing a 38 KD toxic element derived from the Pseudomonas aeruginosa exotoxin A and a monoclonal antibody fragment, designed to attack adenocarcinomas expressing Lewis Y. LMB-9 immunotoxin attaches to tumor cells, facilitating he entry of the exotoxin. The exotoxin moiety induces caspase-mediated apoptosis of tumor cells via a mechanism involving mitochondrial damage; it also catalyzes the transfer of ADP ribose from nicotinamide adenine dinucleotide (NAD) to elongation factor-2 in eukaryotic cells, thereby inactivating elongation factor 2 and inhibiting protein synthesis. Check for "http://www.cancer.gov/Search/ClinicalTrialsLink.aspx?id=43018&idtype=1" active clinical trials or "http://www.cancer.gov/Search/ClinicalTrialsLink.aspx?id=43018&idtype=1&closed=1" closed clinical trials using this agent. ("http://nciterms.nci.nih.gov:80/NCIBrowser/ConceptReport.jsp?dictionary=NCI_Thesaurus&code=C2472" NCI Thesaurus)
LMB-9 Immunotoxin definition: A recombinant disulfide stabilized anti-Lewis Y IgG immunotoxin containing a 38 KD toxic element derived from the Pseudomonas aeruginosa exotoxin A and a monoclonal antibody fragment, designed to target adenocarcinomas expressing Lewis Y. LMB-9 immunotoxin attaches to tumor cells, facilitating he entry of the exotoxin. The exotoxin moiety induces caspase-mediated apoptosis of tumor cells via a mechanism involving mitochondrial damage; it also catalyzes the transfer of ADP ribose from nicotinamide adenine dinucleotide (NAD) to elongation factor-2 in eukaryotic cells, thereby inactivating elongation factor 2 and inhibiting protein synthesis.
 
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