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Andreas Wilke

Offenburg University of Applied Sciences

2 papers in the library · 28 citations · publishing 2018

Papers

Investigating the ability of the microbial model Cunninghamella elegans for the metabolism of synthetic tryptamines

Drug Testing and Analysis November 21, 2018 Katharina Elisabeth Grafinger, Andreas Wilke, Stefan König et al. 15 citations

A fungus, Cunninghamella elegans, can mimic human drug metabolism and was tested on four tryptamines: DMT, 4-HO-MET, 5-MeO-DALT, and 5-MeO-MiPT. After 72 hours of incubation, the fungus performed key biotransformation steps like hydroxylation, N-oxide formation, carboxylation, deamination, and demethylation. On average, 63% of phase I metabolites previously reported in the literature were also produced by C. elegans, along with some unique metabolites. The findings suggest C. elegans is a useful complementary model for studying the metabolism of natural and synthetic tryptamines, especially given the lack of pharmacological data for new psychoactive substances.

DOI: 10.1002/dta.2544 Tryptamines Biotransformation Metabolism Hydroxylation +5

In vitro phase I metabolism of three phenethylamines 25D‐NBOMe, 25E‐NBOMe and 25N‐NBOMe using microsomal and microbial models

Drug Testing and Analysis July 3, 2018 Katharina Elisabeth Grafinger, Katja Stahl, Andreas Wilke et al. 13 citations

The metabolism of three hallucinogenic phenethylamines—25D-NBOMe, 25E-NBOMe, and 25N-NBOMe—was investigated using pooled human liver microsomes (pHLM) and the fungus Cunninghamella elegans. In pHLM, 36, 26, and 24 phase I metabolites were identified for 25D-NBOMe, 25E-NBOMe, and 25N-NBOMe, respectively; in C. elegans, 14, 11, and 9 metabolites were found. Major biotransformation steps included oxidative deamination, N-dealkylation, O-demethylation, hydroxylation, and oxidation of alcohols. Unique metabolites included N-oxide and hydroxylamine derivatives, reported for the first time for NBOMe compounds. C. elegans produced all main biotransformation steps observed in human microsomes, suggesting its potential as a model for studying new psychoactive substances.

DOI: 10.1002/dta.2446 Phenethylamines In vitro Microsome Pharmacology +2