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Machado PHA, Paixão DA, Lino RC, de Souza TR, de Souza Bontempo NJ, Sousa LM, Van Petten de Vasconcelos Azevedo F, Orsolin PC, Lima PMAP, Martins IC, da Costa Guerra JF, Teixeira SC, Araújo TG, Goulart LR, Morelli S, Guerra W, de Oliveira Júnior RJ. A selective Cu II complex with 4-fluorophenoxyacetic acid hydrazide and phenanthroline displays DNA-cleaving and pro-apoptotic properties in cancer cells. Sci Rep 2021; 11:24450. [PMID: 34961767 PMCID: PMC8712526 DOI: 10.1038/s41598-021-03909-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Accepted: 12/10/2021] [Indexed: 12/30/2022] Open
Abstract
The thin line between efficacy and toxicity has challenged cancer therapy. As copper is an essential micronutrient and is important to tumor biology, CuII complexes emerged as an alternative to chemotherapy; however, its biological properties need to be better understood. Thus, we report in vitro the antitumor effects of two CuII complexes named [Cu(4-fh)(phen)(ClO4)2] (complex 1) and [Cu(4-nh)(phen)(ClO4)2]·H2O (complex 2), in which 4-fh = 4-fluorophenoxyacetic acid hydrazide; 4-nh = 4-nitrobenzoic hydrazide and phen = 1,10-phenanthroline. Both complexes presented cytotoxic activity against tumor cells, but only complex 1 showed significant selectivity. Complex 1 also induced DNA-damage, led to G0/G1 arrest and triggered apoptosis, which was initiated by an autophagy dysfunction. The significant in vitro selectivity and the action mechanism of complex 1 are noteworthy and reveal this prodrug as promising for anticancer therapy.
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Affiliation(s)
| | | | - Ricardo Campos Lino
- Instituto de Biotecnologia, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil
| | | | | | - Luana Munique Sousa
- Instituto de Química, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil
| | | | | | | | | | | | - Samuel Cota Teixeira
- Instituto de Ciências Biomédicas, Universidade Federal de Uberlândia , Uberlândia, MG, Brazil.
| | | | - Luiz Ricardo Goulart
- Instituto de Biotecnologia, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil
| | - Sandra Morelli
- Instituto de Biotecnologia, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil
| | - Wendell Guerra
- Instituto de Química, Universidade Federal de Uberlândia, Uberlândia, MG, Brazil
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