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Jin L, Kom MC, Fu G, Xie Y, Gao Y, Shen J, Huang H, Hu B, Yan J. Hexavalent chromium induces hepatocyte apoptosis via regulation of apoptosis signal-regulating kinase 1/c-Jun amino-terminal kinase signaling. ENVIRONMENTAL TOXICOLOGY 2022; 37:1288-1296. [PMID: 35166444 DOI: 10.1002/tox.23483] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 09/24/2021] [Accepted: 01/22/2022] [Indexed: 06/14/2023]
Abstract
With the spread of hexavalent chromium (Cr(VI)) contamination, Cr(VI)-induced hepatotoxicity has attracted increasing attention in recent years. To date, however, the exact mechanism of Cr(VI) toxicity remains unclear. In this study, we investigated the role of apoptosis signal-regulating kinase 1 (ASK1)/c-Jun amino-terminal kinase (JNK) in Cr(VI)-induced hepatic toxicity and the possible related mechanisms. AML-12 hepatocyte cell-lines were treated with 0, 1, 4, and 16 μmol/Lof Cr(VI) with or without GS-444271 (an ASK1 inhibitor). Adult male mice were administered with 0, 2, 8, and 32 mg/kg body mass (BM)/day of Cr(VI) for 5 days. The level of hepatocyte apoptosis/proliferation, generation of reactive oxygen species (ROS), and expression levels of mRNAs and proteins related to ASK1/JNK and nuclear factor-E2-related factor 2 (Nrf2) signaling were assessed. Results showed that high Cr(VI) exposure induced hepatocyte apoptosis and liver injury by generation of ROS and down-regulation of Nrf2 signaling. In addition, ASK1/JNK signaling activity was upregulated in the Cr(VI)-treated group. Furthermore, GS-444217 treatment significantly rescued Cr(VI)-induced hepatocyte apoptosis and liver dysfunction in vitro and in vivo by down-regulation of ASK1/JNK signaling. Thus, ASK1/JNK signaling appears to play an important role in Cr(VI)-induced hepatocyte apoptosis and liver injury. This study should help improve our understanding of the mechanism of Cr(VI)-induced liver injury and provide support for future investigations on liver disease therapy.
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Affiliation(s)
- Lifang Jin
- School of Life Science, Shaoxing University, Zhejiang, China
| | | | - Guoquan Fu
- School of Life Science, Shaoxing University, Zhejiang, China
| | - Yixia Xie
- School of Life Science, Shaoxing University, Zhejiang, China
| | - Yue Gao
- School of Life Science, Shaoxing University, Zhejiang, China
| | - Jiayuan Shen
- School of Life Science, Shaoxing University, Zhejiang, China
- Department of Pathology, Affiliated Hospital of Shaoxing University, Zhejiang, China
| | - Huarong Huang
- College of Life and Environmental Science, Hangzhou Normal University, Hangzhou, China
| | - Baowei Hu
- School of Life Science, Shaoxing University, Zhejiang, China
| | - Junyan Yan
- School of Life Science, Shaoxing University, Zhejiang, China
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Nagamatsu ST, Coutouné N, José J, Fiamenghi MB, Pereira GAG, Oliveira JVDC, Carazzolle MF. Ethanol production process driving changes on industrial strains. FEMS Yeast Res 2021; 21:6070656. [PMID: 33417685 DOI: 10.1093/femsyr/foaa071] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 01/04/2021] [Indexed: 12/16/2022] Open
Abstract
Ethanol production has key differences between the two largest producing countries of this biofuel, Brazil and the USA, such as feedstock source, sugar concentration and ethanol titers in industrial fermentation. Therefore, it is highly probable that these specificities have led to genome adaptation of the Saccharomyces cerevisiae strains employed in each process to tolerate different environments. In order to identify particular adaptations, in this work, we have compared the genomes of industrial yeast strains widely used to produce ethanol from sugarcane, corn and sweet sorghum, and also two laboratory strains as reference. The genes were predicted and then 4524 single-copy orthologous were selected to build the phylogenetic tree. We found that the geographic location and industrial process were shown as the main evolutionary drivers: for sugarcane fermentation, positive selection was identified for metal homeostasis and stress response genes, whereas genes involved in membrane modeling have been connected with corn fermentation. In addition, the corn specialized strain Ethanol Red showed an increased number of copies of MAL31, a gene encoding a maltose transporter. In summary, our work can help to guide new strain chassis selection for engineering strategies, to produce more robust strains for biofuel production and other industrial applications.
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Affiliation(s)
- Sheila Tiemi Nagamatsu
- Division of Human Genetics, Department of Psychiatry, Yale School of Medicine, 333 Cedar St, New Haven, CT, 06510, USA.,Laboratório de Genômica e BioEnergia, Departamento de Genética, Evolução, Microbiologia e Imunologia, Universidade Estadual de Campinas (UNICAMP), Cidade Universitária Zeferino Vaz, Campinas, São Paulo, 13083-970, Brazil
| | - Natalia Coutouné
- Laboratório Nacional de Biorrenováveis (LNBR), Centro Nacional de Pesquisa em Energia e Materiais (CNPEM), CEP 13083-970, Campinas, São Paulo, Brazil
| | - Juliana José
- Laboratório de Genômica e BioEnergia, Departamento de Genética, Evolução, Microbiologia e Imunologia, Universidade Estadual de Campinas (UNICAMP), Cidade Universitária Zeferino Vaz, Campinas, São Paulo, 13083-970, Brazil
| | - Mateus Bernabe Fiamenghi
- Laboratório de Genômica e BioEnergia, Departamento de Genética, Evolução, Microbiologia e Imunologia, Universidade Estadual de Campinas (UNICAMP), Cidade Universitária Zeferino Vaz, Campinas, São Paulo, 13083-970, Brazil
| | - Gonçalo Amarante Guimarães Pereira
- Laboratório de Genômica e BioEnergia, Departamento de Genética, Evolução, Microbiologia e Imunologia, Universidade Estadual de Campinas (UNICAMP), Cidade Universitária Zeferino Vaz, Campinas, São Paulo, 13083-970, Brazil
| | - Juliana Velasco de Castro Oliveira
- Laboratório Nacional de Biorrenováveis (LNBR), Centro Nacional de Pesquisa em Energia e Materiais (CNPEM), CEP 13083-970, Campinas, São Paulo, Brazil
| | - Marcelo Falsarella Carazzolle
- Laboratório de Genômica e BioEnergia, Departamento de Genética, Evolução, Microbiologia e Imunologia, Universidade Estadual de Campinas (UNICAMP), Cidade Universitária Zeferino Vaz, Campinas, São Paulo, 13083-970, Brazil
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Sayyed K, Hdayed I, Tabcheh M, Abdel-Razzak Z, El-Bitar H. Antioxidant properties of the Lebanese plant Iris x germanica L. crude extracts and antagonism of chlorpromazine toxicity on Saccharomyces cerevisiae. Drug Chem Toxicol 2020; 45:1168-1179. [PMID: 32847432 DOI: 10.1080/01480545.2020.1810261] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Iris x germanica L., which belongs to the Iridaceae family, has been reported in the literature for its antioxidant properties in acellular chemical-antioxidant assays. Chlorpromazine (CPZ) is an antipsychotic drug known to cause adverse reactions in humans. Oxidative stress is among the main mechanisms by which CPZ exerts its toxicity in animal cell models as well as in the yeast Saccharomyces cerevisiae. In this study we investigated the protective effects of I. germanica L. crude extracts against CPZ toxicity. We demonstrated that methanolic extracts from rhizome (R-M), leaf (L-M) and flower (Fl-M) had potent antioxidant activity by scavenging the free radical DPPH, with half-maximal effective concentrations (EC50) 193, 107, and 174 µg/mL, respectively. R-M, L-M and Fl-M at doses up to 1000 µg/mL, didn't affect yeast cell growth. In addition, we demonstrated for the first time that L-M at 1000 µg/mL and R-M at all tested doses counteracted CPZ toxicity, probably by promoting yeast cell antioxidant agents. The R-M capacity to counteract CPZ toxicity was lost in the yeast strain mutant in catalase-encoding gene (Cta1), while strains mutant in Sod2, Skn7 and Rap1 showed mild or full R-M-induced protective effect against CPZ toxicity. Our results demonstrated that I. germanica L. R-M extract counteracted CPZ toxicity in the yeast cell model. Further studies are planned to isolate the involved bioactive compounds and identify the involved genes and the antioxidant agents.
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Affiliation(s)
- Katia Sayyed
- EDST-AZM-center and Lebanese University, Faculty of Sciences I, Rafic Hariri Campus, Hadath, Lebanon.,Lebanese American University- Faculty of Arts and Sciences, Department of Natural Sciences, Byblos, Lebanon
| | - Ibrahim Hdayed
- EDST-AZM-center and Lebanese University, Faculty of Sciences I, Rafic Hariri Campus, Hadath, Lebanon
| | - Mohamad Tabcheh
- EDST-AZM-center and Lebanese University, Faculty of Sciences III, Mont-Michel Campus, Tripoli, Lebanon
| | - Ziad Abdel-Razzak
- EDST-AZM-center and Lebanese University, Faculty of Sciences I, Rafic Hariri Campus, Hadath, Lebanon
| | - Hoda El-Bitar
- EDST-AZM-center and Lebanese University, Faculty of Sciences I, Rafic Hariri Campus, Hadath, Lebanon.,EDST-AZM-center and Lebanese University, Faculty of Sciences III, Mont-Michel Campus, Tripoli, Lebanon
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Short communication: Chlorpromazine causes a time-dependent decrease of lipids in Saccharomyces cerevisiae. Interdiscip Toxicol 2020; 12:41-44. [PMID: 32189986 PMCID: PMC7061449 DOI: 10.2478/intox-2019-0006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Accepted: 07/11/2019] [Indexed: 11/30/2022] Open
Abstract
Chlorpromazine (CPZ) is still a commonly prescribed antipsychotic which causes poorly understood idiosyncratic toxicity such as cholestasis, phospholipidosis and steatosis. CPZ has diverse cellular targets and exerts various toxicity mechanisms whose exploration is necessary to understand CPZ side effects. We report here that CPZ causes a decrease of total lipid content in Saccharomyces cerevisiae at the same dose range as that used on mammalian cells. The observed lipid decrease was obvious after 4 and 9 hours of treatment, and disappeared after 24 hours due to cells adaptation to the chemical stress. The inhibitory effect of CPZ was antagonized by the antioxidant N-acetyl L-cysteine and is likely caused by the parent compound. The obtained results demonstrate that yeast model is valid to investigate the involved CPZ toxicity mechanisms, particularly in terms of lipids alteration. This would contribute to understand CPZ side effects in simple model and reduce experimentation on animals.
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