1
|
Klein MDO, Francisco LFV, Gomes INF, Serrano SV, Reis RM, Silveira HCS. Hazard assessment of antineoplastic drugs and metabolites using cytotoxicity and genotoxicity assays. Mutat Res Genet Toxicol Environ Mutagen 2023; 892:503704. [PMID: 37973299 DOI: 10.1016/j.mrgentox.2023.503704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 09/23/2023] [Accepted: 10/04/2023] [Indexed: 11/19/2023]
Abstract
Antineoplastic drugs are among the most toxic pharmaceuticals. Their release into the aquatic ecosystems has been reported, giving rise to concerns about the adverse effects, including cytotoxicity and genotoxicity, that they may have on exposed organisms. In this study, we analyzed the cytotoxicity and genotoxicity of 5-fluorouracil (5-FU) and its metabolite alpha-fluoro-beta-alanine (3-NH2-F); gemcitabine (GEM) and its metabolite 2'-deoxy-2',2'-difluorouridine (2-DOH-DiF); as well as cyclophosphamide (CP) on the HepG2 cell line. Drug concentrations were based on those previously observed in the effluent of a major cancer hospital in Brazil. The study found that GEM, 2-DOH-DiF and 5-FU resulted in reduced cell viability. No reduction in cell viability was observed for CP and 3-NH2-F. Genotoxic assessment revealed damage in the form of nucleoplasmic bridges for CP and 3-NH2-F. The tested concentrations of all compounds resulted in significantly increased MNi and NBUDs. The results showed that these compounds induced cytotoxic and genotoxic effects in HepG2 cells at concentrations found in the environment. To the best of our knowledge, this study is the first to report on the cytogenotoxic impacts of the metabolites 3-NH2-F and 2-DOH-DiF in HepG2 cells. These findings may help in the development of public policies that could minimize potential environmental contamination.
Collapse
Affiliation(s)
| | | | | | - Sergio V Serrano
- Barretos School of Health Sciences-FACISB, Barretos, São Paulo 14785-002, Brazil
| | - Rui M Reis
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, São Paulo 14784-400, Brazil; Life and Health Sciences Research Institute (ICVS), Medical School, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Guimarães, Braga, Portugal
| | - Henrique C S Silveira
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, São Paulo 14784-400, Brazil; University of Cuiabá, Cuiabá, Mato Grosso, Brazil; University of Anhaguera, São Paulo, Brazil.
| |
Collapse
|
2
|
de Oliveira Klein M, Serrano SV, Santos-Neto Á, da Cruz C, Brunetti IA, Lebre D, Gimenez MP, Reis RM, Silveira HCS. Detection of anti-cancer drugs and metabolites in the effluents from a large Brazilian cancer hospital and an evaluation of ecotoxicology. Environ Pollut 2021; 268:115857. [PMID: 33139101 DOI: 10.1016/j.envpol.2020.115857] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 09/05/2020] [Accepted: 10/13/2020] [Indexed: 06/11/2023]
Abstract
The use of chemotherapy agents has been growing worldwide, due to the increase number of cancer cases. In several countries, mainly in Europe countries, these drugs have been detected in hospitals and municipal wastewaters. In Brazil this issue is poorly explored. The main goal of this study was to assess the presence of three anti-cancer drugs, 5-fluorouracil (5-FU), gemcitabine (GEM) and cyclophosphamide (CP), and two metabolites, alpha-fluoro-beta-alanine (3-NH2-F) and 2'-deoxy-2',2'-difluorouridine (2-DOH-DiF), in effluents from a large cancer hospital, in the municipal wastewater treatment plant (WWTP) influent and effluent, and also to evaluate toxicity of the mixtures of these compounds by ecotoxicological testing in zebrafish. The sample collections were performed in Barretos Cancer Hospital of the large cancer center in Brazil. After each collection, the samples were filtered for subsequent Liquid Chromatography Mass Spectrometry analysis. The presence of CP, GEM, and both metabolites (3-NH2-F and 2-DOH-DiF) were detected in the hospital wastewater and the WWTP influent. Three drugs, GEM, 2-DOH-DiF and CP, were detected in the WWTP effluent. Two drugs were detected below the limit of quantification, 2-DOH-DiF: <LOQ (above 1400 ng L-1) and CP: <LOQ (above 300 ng L-1), and GEM was quantified at 420 ng L-1. Furthermore, 2-DOH-DiF (116,000 ng L-1) was detected at the highest level in the hospital wastewater. There were no zebrafish deaths at any of the concentrations of the compounds used. However, we observed histological changes, including aneurysms and edema in the gills and areas of necrosis of the liver. In summary, we found higher concentrations of CP, GEM and both metabolites (3-NH2-F and 2-DOH-DiF) were detected for the first time. There is currently no legislation regarding the discharge of anti-cancer drugs in effluents in Brazil. This study is first to focus on effluents from specific treatments from a large cancer hospital located in small city in Brazil.
Collapse
Affiliation(s)
- Mariana de Oliveira Klein
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, São Paulo, 14784-400, Brazil
| | - Sergio V Serrano
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, São Paulo, 14784-400, Brazil; Barretos School of Health Sciences-FACISB, Barretos, São Paulo, 14785-002, Brazil
| | - Álvaro Santos-Neto
- São Carlos Institute of Chemistry, University of São Paulo, São Carlos, São Paulo, Brazil
| | - Claudinei da Cruz
- University Center of the Barretos Educational Foundation (UNIFEB), Barretos, São Paulo, Brazil
| | - Isabella Alves Brunetti
- University Center of the Barretos Educational Foundation (UNIFEB), Barretos, São Paulo, Brazil
| | - Daniel Lebre
- Center for Applied Mass Spectrometry, Sao Paulo, Brazil
| | | | - Rui M Reis
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, São Paulo, 14784-400, Brazil; Life and Health Sciences Research Institute (ICVS), Medical School, University of Minho, Braga, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Henrique C S Silveira
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, São Paulo, 14784-400, Brazil; University of Cuiabá, Cuiabá, Mato Grosso, Brazil.
| |
Collapse
|