Articolo in rivista, 2023, ENG, 10.3390/pharmaceutics15020453

Biological Evaluation and In Vitro Characterization of ADME Profile of In-House Pyrazolo[3,4- d]pyrimidines as Dual Tyrosine Kinase Inhibitors Active against Glioblastoma Multiforme

Poggialini F, Vagaggini C, Brai A, Pasqualini C, Crespan E, Maga G, Perini C, Cabella N, Botta L, Musumeci F, Frosini M, Schenone S, Dreassi E

Department of Biotechnology, Chemistry and Pharmacy (DBCF), University of Siena, 53100 Siena, Italy. Institute of Molecular Genetics (IGM), CNR "Luigi Luca Cavalli-Sforza", 27100 Pavia, Italy. Department of Ecological and Biological Sciences, University of Tuscia, Via S.C. De Lellis s.n.c., 01100 Viterbo, Italy. Department of Pharmacy, University of Genoa, 16132 Genoa, Italy. Department of Life Sciences, University of Siena, 53100 Siena, Italy.

The therapeutic use of tyrosine kinase inhibitors (TKIs) represents one of the successful strategies for the treatment of glioblastoma (GBM). Pyrazolo[3,4-d]pyrimidines have already been reported as promising small molecules active as c-Src/Abl dual inhibitors. Herein, we present a series of pyrazolo[3,4-d]pyrimidine derivatives, selected from our in-house library, to identify a promising candidate active against GBM. The inhibitory activity against c-Src and Abl was investigated, and the antiproliferative profile against four GBM cell lines was studied. For the most active compounds endowed with antiproliferative efficacy in the low-micromolar range, the effects toward nontumoral, healthy cell lines (fibroblasts FIBRO 2-93 and keratinocytes HaCaT) was investigated. Lastly, the in silico and in vitro ADME properties of all compounds were also assessed. Among the tested compounds, the promising inhibitory activity against c-Src and Abl (Ki 3.14 µM and 0.44 µM, respectively), the irreversible, apoptotic-mediated death toward U-87, LN18, LN229, and DBTRG GBM cell lines (IC50 6.8 µM, 10.8 µM, 6.9 µM, and 8.5 µM, respectively), the significant reduction in GBM cell migration, the safe profile toward FIBRO 2-93 and HaCaT healthy cell lines (CC50 91.7 µM and 126.5 µM, respectively), the high metabolic stability, and the excellent passive permeability across gastrointestinal and blood-brain barriers led us to select compound 5 for further in vivo assays.

Pharmaceutics 15 (2), pp. 453–?

Keywords

ADME, antiproliferative activity, c-Src/Abl dual inhibitors, glioblastoma, pyrazolo[3, 4-d]pyrimidines, tyrosine kinase.

CNR authors

Maga Giovanni, Crespan Emmanuele

CNR institutes

IGM – Istituto di genetica molecolare "Luigi Luca Cavalli Sforza"