In a recent work we described the organic synthesis and experimental pharmacological assay of MIF-1 peptidomimetics modulators of D2 receptors (D2R). We measured their ability to enhance the maximal effect of tritiated N-propylapomorphine ([3H]-NPA) at D2R. The 2-furoyl-l-leucylglycinamide (6a) showed increase maximal [3H]-NPA response at 10 pM (11 ± 1%) compared to MIF-1. Neurotoxicity assays of MIF-1 derivative 6a with cortex neurons of Wistar-Kyoto rat embryos suggest low neurotoxicity. Additionally, we reported a predictive model >20 000 outcomes of preclinical assays reported in ChEMBL for this kind of modulators. The model shows high specificity Sp = 89.2/89.4%, sensitivity Sn = 71.3/72.2%, and accuracy Ac = 86.1%/86.4% in training/validation series, respectively. The model is useful to predict this and similar compounds.
Ref: Synthesis, Pharmacological, and Biological Evaluation of 2-Furoyl-Based MIF-1 Peptidomimetics and the Development of a General-Purpose Model for Allosteric Modulators (ALLOPTML). Sampaio-Dias IE, Rodríguez-Borges JE, Yáñez-Pérez V, Arrasate S, Llorente J, Brea JM, Bediaga H, Viña D, Loza MI, Caamaño O, García-Mera X, González-Díaz H.ACS Chem Neurosci. 2021 Jan 6;12(1):203-215. doi: 10.1021/acschemneuro.0c00687. Epub 2020 Dec 21.PMID: 33347281