0523953 - ÚEB 2021 RIV CH eng J - Journal Article
Salas, C. O. - Zarate, A. M. - Kryštof, Vladimír - Mella, J. - Faundez, M. - Brea, J. - Loza, M. I. - Brito, I. - Hendrychová, Denisa - Jorda, Radek - Cabrera, A. R. - Tapia, R. A. - Espinosa-Bustos, C.
Promising 2,6,9-trisubstituted purine derivatives for anticancer compounds: Synthesis, 3D-QSAR, and preliminary biological assays.
International Journal of Molecular Sciences. Roč. 21, č. 1 (2020), č. článku 161. ISSN 1422-0067. E-ISSN 1422-0067
Institutional support: RVO:61389030
Keywords : 3d-qsar * Apoptosis * Cancer * Cell cycle * Cytotoxicity * Purine derivatives
OECD category: Oncology
Impact factor: 5.924, year: 2020
Method of publishing: Open access
Result website:
http://doi.org/10.3390/ijms21010161
DOI: https://doi.org/10.3390/ijms21010161

We designed, synthesized, and evaluated novel 2,6,9-trisubstituted purine derivatives for their prospective role as antitumor compounds. Using simple and efficient methodologies, 31 compounds were obtained. We tested these compounds in vitro to draw conclusions about their cell toxicity on seven cancer cells lines and one non-neoplastic cell line. Structural requirements for antitumor activity on two different cancer cell lines were analyzed with SAR and 3D-QSAR. The 3D-QSAR models showed that steric properties could better explain the cytotoxicity of compounds than electronic properties (70% and 30% of contribution, respectively). From this analysis, we concluded that an arylpiperazinyl system connected at position 6 of the purine ring is beneficial for cytotoxic activity, while the use of bulky systems at position C-2 of the purine is not favorable. Compound 7h was found to be an effective potential agent when compared with a currently marketed drug, cisplatin, in four out of the seven cancer cell lines tested. Compound 7h showed the highest potency, unprecedented selectivity, and complied with all the Lipinski rules. Finally, it was demonstrated that 7h induced apoptosis and caused cell cycle arrest at the S-phase on HL-60 cells. Our study suggests that substitution in the purine core by arylpiperidine moiety is essential to obtain derivatives with potential anticancer activity.

Permanent Link: http://hdl.handle.net/11104/0308263