PMID- 31835792 OWN - NLM STAT- MEDLINE DCOM- 20201026 LR - 20201026 IS - 2072-6651 (Electronic) IS - 2072-6651 (Linking) VI - 11 IP - 12 DP - 2019 Dec 11 TI - A Rapid Extraction Method Combined with a Monoclonal Antibody-Based Immunoassay for the Detection of Amatoxins. LID - 10.3390/toxins11120724 [doi] LID - 724 AB - Amatoxins (AMAs) are lethal toxins found in a variety of mushroom species. Detection methods are needed to determine the occurrence of AMAs in mushroom species suspected in mushroom poisonings. In this manuscript, we report the generation of novel monoclonal antibodies (mAbs, AMA9G3 and AMA9C12) and the development of a competitive, enzyme-linked immunosorbent assay (cELISA) that is sensitive at 1 ng mL(-1) and shows selectivity for alpha-amanitin (alpha-AMA) and gamma-amanitin (gamma-AMA), and less for beta-amanitin (beta-AMA). In order to decrease the overall time needed for analysis, the extraction procedure for mushrooms was also simplified. A rapid (1 min) extraction procedure of AMAs using solvents as simple as water alone was successfully demonstrated using Amanita mushrooms. Together, the extraction method and the mAb-based ELISA represent a simple and rapid method that readily detects AMAs extracted from mushroom samples. FAU - Bever, Candace S AU - Bever CS AD - Foodborne Toxin Detection and Prevention Unit, Western Regional Research Center, Agricultural Research Service, United States Department of Agriculture, 800 Buchanan Street, Albany, CA 94710, USA. FAU - Hnasko, Robert M AU - Hnasko RM AD - Produce Safety and Microbiology Unit, Western Regional Research Center, Agricultural Research Service, United States Department of Agriculture, 800 Buchanan Street, Albany, CA 94710, USA. FAU - Cheng, Luisa W AU - Cheng LW AD - Foodborne Toxin Detection and Prevention Unit, Western Regional Research Center, Agricultural Research Service, United States Department of Agriculture, 800 Buchanan Street, Albany, CA 94710, USA. FAU - Stanker, Larry H AU - Stanker LH AD - Foodborne Toxin Detection and Prevention Unit, Western Regional Research Center, Agricultural Research Service, United States Department of Agriculture, 800 Buchanan Street, Albany, CA 94710, USA. LA - eng GR - 60-2030-5-004/DHS/DHS/United States PT - Journal Article PT - Research Support, U.S. Gov't, Non-P.H.S. DEP - 20191211 PL - Switzerland TA - Toxins (Basel) JT - Toxins JID - 101530765 RN - 0 (Amanitins) RN - 0 (Antibodies, Monoclonal) RN - 10450-60-9 (Periodic Acid) RN - 58250-15-0 (amatoxin) RN - 9013-72-3 (Hemocyanins) RN - B45A1BUM4Q (metaperiodate) RN - FV4Y0JO2CX (keyhole-limpet hemocyanin) SB - IM MH - Amanita MH - Amanitins/*analysis/immunology MH - Animals MH - Antibodies, Monoclonal/*immunology MH - Enzyme-Linked Immunosorbent Assay/*methods MH - Female MH - Hemocyanins/immunology MH - Mice, Inbred BALB C MH - Periodic Acid/immunology PMC - PMC6950293 OTO - NOTNLM OT - ELISA OT - amanitins OT - amatoxins OT - death cap mushrooms OT - immunoassay OT - monoclonal antibodies COIS- The authors declare a competing interest. C.S.B., R.M.H., L.W.C. and L.H.S. are named as inventors on a provisional patent application filed by ARS-USDA related to the data presented in this work. EDAT- 2019/12/15 06:00 MHDA- 2020/10/27 06:00 PMCR- 2019/12/01 CRDT- 2019/12/15 06:00 PHST- 2019/11/22 00:00 [received] PHST- 2019/12/05 00:00 [revised] PHST- 2019/12/09 00:00 [accepted] PHST- 2019/12/15 06:00 [entrez] PHST- 2019/12/15 06:00 [pubmed] PHST- 2020/10/27 06:00 [medline] PHST- 2019/12/01 00:00 [pmc-release] AID - toxins11120724 [pii] AID - toxins-11-00724 [pii] AID - 10.3390/toxins11120724 [doi] PST - epublish SO - Toxins (Basel). 2019 Dec 11;11(12):724. doi: 10.3390/toxins11120724.