PMID- 8694800 OWN - NLM STAT- MEDLINE DCOM- 19960829 LR - 20220330 IS - 0006-291X (Print) IS - 0006-291X (Linking) VI - 224 IP - 1 DP - 1996 Jul 5 TI - Identification of the snake venom substance that induces apoptosis. PG - 134-9 AB - Hemorrhagic snake venom induces apoptosis of vascular endothelial cells [S. Araki, T. Ishida, T. Yamamoto, K. Kaji, and H. Hayashi (1993) Biochem. Biophys. Res. Comm. 190 , 148-153]. We have identified that a cytotoxic substance of Korean snake venom which is responsible for the apoptosis is L-amino acid oxidase (LAO). The purified enzyme is a homodimeric glycoprotein of 110,000 and is capable of generating H2O2 by catalyzing oxidation of L-amino acid. In the presence of the enzyme, cultured L1210 cell nuclei were splitted and showed the characteristic ladder-like pattern of DNA fragmentation. The enzyme binds directly to the cell surface, thereby increasing local concentration of H2O2. However, experimental evidence suggests that the LAO-induced apoptotic mechanism is distinguished from the one caused by exogenous H2O2. FAU - Suhr, S M AU - Suhr SM AD - Department of Biochemistry, College of Science, Seoul, Korea. FAU - Kim, D S AU - Kim DS LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Biochem Biophys Res Commun JT - Biochemical and biophysical research communications JID - 0372516 RN - 0 (Agkistrodon venoms) RN - 0 (Crotalid Venoms) RN - 0 (DNA, Neoplasm) RN - 9007-49-2 (DNA) RN - EC 1.4.- (Amino Acid Oxidoreductases) RN - EC 1.4.3.2 (L-Amino Acid Oxidase) SB - IM MH - Amino Acid Oxidoreductases/isolation & purification/*toxicity MH - Animals MH - Apoptosis/*drug effects MH - Cell Line MH - Cell Membrane/ultrastructure MH - Crotalid Venoms/chemistry/*toxicity MH - DNA/drug effects MH - DNA, Neoplasm/drug effects MH - Electrophoresis, Polyacrylamide Gel MH - HL-60 Cells MH - HeLa Cells MH - Hematopoietic Stem Cells MH - Humans MH - L-Amino Acid Oxidase MH - Leukemia L1210 MH - Leukemia, T-Cell MH - Lymphocytes/drug effects/ultrastructure MH - Mice MH - Spleen MH - Tumor Cells, Cultured EDAT- 1996/07/05 00:00 MHDA- 1996/07/05 00:01 CRDT- 1996/07/05 00:00 PHST- 1996/07/05 00:00 [pubmed] PHST- 1996/07/05 00:01 [medline] PHST- 1996/07/05 00:00 [entrez] AID - S0006-291X(96)90996-1 [pii] AID - 10.1006/bbrc.1996.0996 [doi] PST - ppublish SO - Biochem Biophys Res Commun. 1996 Jul 5;224(1):134-9. doi: 10.1006/bbrc.1996.0996.