PMID- 17511422 OWN - NLM STAT- MEDLINE DCOM- 20071016 LR - 20181201 IS - 0003-2700 (Print) IS - 0003-2700 (Linking) VI - 79 IP - 12 DP - 2007 Jun 15 TI - Development of a monoclonal antibody-based broad-specificity ELISA for fluoroquinolone antibiotics in foods and molecular modeling studies of cross-reactive compounds. PG - 4471-83 AB - A competitive indirect enzyme-linked immunosorbent assay (ciELISA) using monoclonal antibodies (Mabs) having broad specificity for fluoroquinolone (FQ) antibiotics is described. Four FQs, ciprofloxacin (CIP), enrofloxacin (ENR), norfloxacin (NOR), and ofloxacin (OFL), were conjugated to bovine serum albumin for immunogens and to ovalbumin for coating antigens. A Mab C4A9H1 raised against the CIP hapten exhibited high cross-reactivity (35-100%) with 12 of 14 FQs and detected these FQs in a ciELISA below their maximum residue levels (MRLs) with good sensitivity at 50% binding inhibition (IC50). The quantitative structure-activity relationship (QSAR) between Mab C4A9H1 and various FQs by comparative molecular field analysis (CoMFA) showed a high predictive ability with a cross-validation q2 value of 0.866. Using a simple purification process and the broad-specificity ciELISA adapted for analysis of FQs in chicken muscle, chicken liver, honey, shrimp, and whole egg samples demonstrated recoveries of 60-93% for CIP, ENR, NOR, OFL, flumequine, and danofloxacin. FAU - Wang, Zhanhui AU - Wang Z AD - Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, China Agricultural University, Beijing 100094, People's Republic of China. FAU - Zhu, Yan AU - Zhu Y FAU - Ding, Shuangyang AU - Ding S FAU - He, Fangyang AU - He F FAU - Beier, Ross C AU - Beier RC FAU - Li, Jiancheng AU - Li J FAU - Jiang, Haiyang AU - Jiang H FAU - Feng, Caiwei AU - Feng C FAU - Wan, Yuping AU - Wan Y FAU - Zhang, Suxia AU - Zhang S FAU - Kai, Zhenpeng AU - Kai Z FAU - Yang, Xinling AU - Yang X FAU - Shen, Jianzhong AU - Shen J LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20070519 PL - United States TA - Anal Chem JT - Analytical chemistry JID - 0370536 RN - 0 (Anti-Bacterial Agents) RN - 0 (Antibodies, Monoclonal) RN - 0 (Fluoroquinolones) RN - 3DX3XEK1BN (Enrofloxacin) RN - 5E8K9I0O4U (Ciprofloxacin) RN - A4P49JAZ9H (Ofloxacin) RN - N0F8P22L1P (Norfloxacin) SB - IM MH - Animals MH - Anti-Bacterial Agents/*analysis MH - Antibodies, Monoclonal/*immunology MH - Antibody Specificity MH - Ciprofloxacin/analysis MH - Enrofloxacin MH - Enzyme-Linked Immunosorbent Assay/*methods MH - Fluoroquinolones/*analysis MH - Food Contamination/*analysis MH - Inhibitory Concentration 50 MH - Norfloxacin/analysis MH - Ofloxacin/analysis MH - Quantitative Structure-Activity Relationship MH - Sensitivity and Specificity EDAT- 2007/05/22 09:00 MHDA- 2007/10/17 09:00 CRDT- 2007/05/22 09:00 PHST- 2007/05/22 09:00 [pubmed] PHST- 2007/10/17 09:00 [medline] PHST- 2007/05/22 09:00 [entrez] AID - 10.1021/ac070064t [doi] PST - ppublish SO - Anal Chem. 2007 Jun 15;79(12):4471-83. doi: 10.1021/ac070064t. Epub 2007 May 19.