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Transcriptome Analysis of the Immortal Human Keratinocyte HaCaT Cell Line Damaged by Tritiated Water. BIOLOGY 2023; 12:biology12030405. [PMID: 36979097 PMCID: PMC10045445 DOI: 10.3390/biology12030405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 02/05/2023] [Accepted: 03/02/2023] [Indexed: 03/08/2023]
Abstract
Radioactive elements, such as tritium, have been released into the ocean in large quantities as a result of the reactor leakage accident. In this study, an MTT assay demonstrated that the viability of HacaT cells decreased after tritiated water treatment. Bioinformatics analysis was used to analyze gene changes in the HacaT cells. The sequencing results showed 267 significantly differentially expressed genes (DEGs), and GO enrichment analysis showed that the DEGs were mainly divided into three parts. The KEGG pathway analysis showed that the up-regulated DEGs were involved in Wnt and other pathways, while the down-regulated DEGs were involved in Jak–STAT and others. A Western blot assay was used to verify the parts of the sequencing results. This study was the first to explore the mechanism of tritiated water on HacaT cells using Transcriptome analysis. The results will provide a theoretical basis for the study of tritiated water hazard mechanisms.
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Rodneva SM, Osipov AA, Guryev DV, Tsishnatti AA, Fedotov YА, Yashkina EI, Vorobyova NY, Maksimov AA, Kochetkov OA, Samoylov AS, Osipov AN. Comparative Study of the γH2AX Foci Forming in Human Lung Fibroblasts Incubated in Media Containing Tritium-Labeled Thymidine or Amino Acids. Bull Exp Biol Med 2021; 172:245-249. [PMID: 34853973 DOI: 10.1007/s10517-021-05370-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Indexed: 11/30/2022]
Abstract
We compared the formation of γH2AX foci (marker of DNA double-strand breaks) in human lung fibroblasts (MRC-5 line) during their 24-h incubation in a medium containing 3H-labeled thymidine or amino acids (glycine, alanine, and proline) with specific radioactivity from 100 to 400 MBq/liter. A linear dependence of changes in the number of γH2AX foci on the specific radioactivity of the medium was revealed. The quantitative yield of DNA double-strand breaks under the influence of 3H-thymidine was more than 2-fold higher than under the influence of 3H-labeled amino acids. Comparative analysis of the yields of DNA double-strand breaks during cell incubation with 3H-labeled amino acids showed that 3H-alanine produced more pronounced effect that 3H-proline, which is consistent with the data on the content of their non-radioactive analogs in chromatin proteins.
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Affiliation(s)
- S M Rodneva
- A. I. Burnasyan Federal Medical Biophysical Center, Federal Medical-Biological Agency, Moscow, Russia
| | - A A Osipov
- A. I. Burnasyan Federal Medical Biophysical Center, Federal Medical-Biological Agency, Moscow, Russia.,N. N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Moscow, Russia
| | - D V Guryev
- A. I. Burnasyan Federal Medical Biophysical Center, Federal Medical-Biological Agency, Moscow, Russia. .,N. N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Moscow, Russia.
| | - A A Tsishnatti
- A. I. Burnasyan Federal Medical Biophysical Center, Federal Medical-Biological Agency, Moscow, Russia
| | - Y А Fedotov
- A. I. Burnasyan Federal Medical Biophysical Center, Federal Medical-Biological Agency, Moscow, Russia.,N. N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Moscow, Russia
| | - E I Yashkina
- A. I. Burnasyan Federal Medical Biophysical Center, Federal Medical-Biological Agency, Moscow, Russia
| | - N Y Vorobyova
- A. I. Burnasyan Federal Medical Biophysical Center, Federal Medical-Biological Agency, Moscow, Russia.,N. N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Moscow, Russia
| | - A A Maksimov
- A. I. Burnasyan Federal Medical Biophysical Center, Federal Medical-Biological Agency, Moscow, Russia
| | - O A Kochetkov
- A. I. Burnasyan Federal Medical Biophysical Center, Federal Medical-Biological Agency, Moscow, Russia
| | - A S Samoylov
- A. I. Burnasyan Federal Medical Biophysical Center, Federal Medical-Biological Agency, Moscow, Russia
| | - A N Osipov
- A. I. Burnasyan Federal Medical Biophysical Center, Federal Medical-Biological Agency, Moscow, Russia.,N. N. Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences, Moscow, Russia
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Saintigny Y, Chevalier F, Bravard A, Dardillac E, Laurent D, Hem S, Dépagne J, Radicella JP, Lopez BS. A threshold of endogenous stress is required to engage cellular response to protect against mutagenesis. Sci Rep 2016; 6:29412. [PMID: 27406380 PMCID: PMC4942696 DOI: 10.1038/srep29412] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Accepted: 06/16/2016] [Indexed: 01/22/2023] Open
Abstract
Endogenous stress represents a major source of genome instability, but is in essence difficult to apprehend. Incorporation of labeled radionuclides into DNA constitutes a tractable model to analyze cellular responses to endogenous attacks. Here we show that incorporation of [(3)H]thymidine into CHO cells generates oxidative-induced mutagenesis, but, with a peak at low doses. Proteomic analysis showed that the cellular response differs between low and high levels of endogenous stress. In particular, these results confirmed the involvement of proteins implicated in redox homeostasis and DNA damage signaling pathways. Induced-mutagenesis was abolished by the anti-oxidant N-acetyl cysteine and plateaued, at high doses, upon exposure to L-buthionine sulfoximine, which represses cellular detoxification. The [(3)H]thymidine-induced mutation spectrum revealed mostly base substitutions, exhibiting a signature specific for low doses (GC > CG and AT > CG). Consistently, the enzymatic activity of the base excision repair protein APE-1 is induced at only medium or high doses. Collectively, the data reveal that a threshold of endogenous stress must be reached to trigger cellular detoxification and DNA repair programs; below this threshold, the consequences of endogenous stress escape cellular surveillance, leading to high levels of mutagenesis. Therefore, low doses of endogenous local stress can jeopardize genome integrity more efficiently than higher doses.
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Affiliation(s)
- Yannick Saintigny
- Institute of Cellular and Molecular Radiobiology -Commissariat à l'Energie Atomique et aux Energies Alternatives, Fontenay aux Roses, F-92265, France
| | - François Chevalier
- Institute of Cellular and Molecular Radiobiology -Commissariat à l'Energie Atomique et aux Energies Alternatives, Fontenay aux Roses, F-92265, France
| | - Anne Bravard
- Institute of Cellular and Molecular Radiobiology -Commissariat à l'Energie Atomique et aux Energies Alternatives, Fontenay aux Roses, F-92265, France.,UMR967 INSERM/CEA/Universités Paris Diderot et Paris Saclay, Fontenay aux Roses, F-92265, France
| | - Elodie Dardillac
- Institute of Cellular and Molecular Radiobiology -Commissariat à l'Energie Atomique et aux Energies Alternatives, Fontenay aux Roses, F-92265, France.,UMR 8200 CNRS, Institut de cancérologie Gustave Roussy, Université Paris-Saclay, équipe labélisée par la Ligue bationale contre le Cancer "LIGUE 2014", Villejuif, F-94805, France
| | - David Laurent
- Institute of Cellular and Molecular Radiobiology -Commissariat à l'Energie Atomique et aux Energies Alternatives, Fontenay aux Roses, F-92265, France
| | - Sonia Hem
- Plateforme de spectrométrie de masse protéomique - MSPP, Biochimie et physiologie moléculaire des plantes, CNRS, INRA, Montpellier Supagro, Univ. Montpellier, 34060 Montpellier, France
| | - Jordane Dépagne
- Institute of Cellular and Molecular Radiobiology -Commissariat à l'Energie Atomique et aux Energies Alternatives, Fontenay aux Roses, F-92265, France
| | - J Pablo Radicella
- Institute of Cellular and Molecular Radiobiology -Commissariat à l'Energie Atomique et aux Energies Alternatives, Fontenay aux Roses, F-92265, France.,UMR967 INSERM/CEA/Universités Paris Diderot et Paris Saclay, Fontenay aux Roses, F-92265, France
| | - Bernard S Lopez
- Institute of Cellular and Molecular Radiobiology -Commissariat à l'Energie Atomique et aux Energies Alternatives, Fontenay aux Roses, F-92265, France.,UMR 8200 CNRS, Institut de cancérologie Gustave Roussy, Université Paris-Saclay, équipe labélisée par la Ligue bationale contre le Cancer "LIGUE 2014", Villejuif, F-94805, France
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