PMID- 35483786 OWN - NLM STAT- MEDLINE DCOM- 20220502 LR - 20220502 IS - 1879-3592 (Electronic) IS - 1383-5718 (Linking) VI - 876-877 DP - 2022 Apr-May TI - Pyrene-polyethylene glycol-modified multi-walled carbon nanotubes: Genotoxicity in V79-4 fibroblast cells. PG - 503463 LID - S1383-5718(22)00024-9 [pii] LID - 10.1016/j.mrgentox.2022.503463 [doi] AB - The genotoxicity of pyrene-polyethylene glycol-modified multi-walled carbon nanotubes (MWCNT-PyPEG), engineered as a nanoplatform for bioapplication, was evaluated. Toxicity was assessed in hamster lung fibroblast cells (V79-4). MTT and Cell Titer Blue methods were used to evaluate cell viability. Genotoxicity was measured by the comet assay and the cytokinesis-block micronucleus cytome (CBMN-Cyt) assay, and fluorescence in situ hybridization (FISH) was used to test induction of structural chromosome aberrations (clastogenic activity) and/or numerical chromosome changes (aneuploidogenic activity). Exogenous metabolic activation enzymes were used in the CBMN-Cyt and FISH tests. Only with metabolic activation, the hybrids caused chromosomal damage, by both clastogenic and aneugenic processes. CI - Copyright (c) 2022 Elsevier B.V. All rights reserved. FAU - Ferreira Dantas, Graziela de Paula AU - Ferreira Dantas GP AD - ToxLab, Departamento de Analises Clinicas e Toxicologicas, Faculdade de Farmacia - Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG, Brazil. Electronic address: grazi.pfd@gmail.com. FAU - Nascimento Martins, Estefania Mara do AU - Nascimento Martins EMD AD - Laboratorio de Quimica de Nanoestruturas de Carbono, Centro de Desenvolvimento da Tecnologia Nuclear (CDTN), Belo Horizonte, MG, Brazil. FAU - Gomides, Livia Santos AU - Gomides LS AD - Laboratorio de Quimica de Nanoestruturas de Carbono, Centro de Desenvolvimento da Tecnologia Nuclear (CDTN), Belo Horizonte, MG, Brazil. FAU - Chequer, Farah Maria Drumond AU - Chequer FMD AD - Laboratorio de Analises Toxicologicas, Universidade Federal de Sao Joao del-Rei, Campus Centro-Oeste Dona Lindu (UFSJ-CCO), Divinopolis, MG, Brazil. FAU - Burbano, Rommel Rodriguez AU - Burbano RR AD - Laboratorio de Citogenetica Humana, Instituto de Ciencias Biologicas, Universidade Federal do Para (UFPA), Belem, PA, Brazil. FAU - Furtado, Clascidia Aparecida AU - Furtado CA AD - Laboratorio de Quimica de Nanoestruturas de Carbono, Centro de Desenvolvimento da Tecnologia Nuclear (CDTN), Belo Horizonte, MG, Brazil. FAU - Santos, Adelina Pinheiro AU - Santos AP AD - Laboratorio de Quimica de Nanoestruturas de Carbono, Centro de Desenvolvimento da Tecnologia Nuclear (CDTN), Belo Horizonte, MG, Brazil. FAU - Tagliati, Carlos Alberto AU - Tagliati CA AD - ToxLab, Departamento de Analises Clinicas e Toxicologicas, Faculdade de Farmacia - Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG, Brazil. LA - eng PT - Journal Article DEP - 20220211 PL - Netherlands TA - Mutat Res Genet Toxicol Environ Mutagen JT - Mutation research. Genetic toxicology and environmental mutagenesis JID - 101632149 RN - 0 (Mutagens) RN - 0 (Nanotubes, Carbon) RN - 0 (Pyrenes) RN - 3WJQ0SDW1A (Polyethylene Glycols) SB - IM MH - Animals MH - Cricetinae MH - Fibroblasts MH - In Situ Hybridization, Fluorescence/methods MH - Mutagens/toxicity MH - *Nanotubes, Carbon/toxicity MH - Polyethylene Glycols/toxicity MH - Pyrenes/toxicity OTO - NOTNLM OT - Comet assay OT - Micronucleus assayMetabolic activation OT - Viability EDAT- 2022/04/29 06:00 MHDA- 2022/05/03 06:00 CRDT- 2022/04/28 21:03 PHST- 2021/09/01 00:00 [received] PHST- 2022/02/04 00:00 [revised] PHST- 2022/02/05 00:00 [accepted] PHST- 2022/04/28 21:03 [entrez] PHST- 2022/04/29 06:00 [pubmed] PHST- 2022/05/03 06:00 [medline] AID - S1383-5718(22)00024-9 [pii] AID - 10.1016/j.mrgentox.2022.503463 [doi] PST - ppublish SO - Mutat Res Genet Toxicol Environ Mutagen. 2022 Apr-May;876-877:503463. doi: 10.1016/j.mrgentox.2022.503463. Epub 2022 Feb 11.