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Zhu M, Zhang M, Tang M, Wang J, Liu L, Wang Z. The concentration-dependent physiological damage, oxidative stress, and DNA lesions in Caenorhabditis elegans by subacute exposure to landfill leachate. CHEMOSPHERE 2023; 339:139544. [PMID: 37474030 DOI: 10.1016/j.chemosphere.2023.139544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 07/04/2023] [Accepted: 07/15/2023] [Indexed: 07/22/2023]
Abstract
The leakage of landfill leachate (LL) into environmental media would be happened even in the sanitary/controlled landfill, due to the deterioration of geomembrane and the blockage of drainage system after long-term operation. Considering the complex composition and high concentration of pollutants in LL, its toxicity assessment should be conducted as a whole liquid contaminant. Therefore, the impacts of LL on Caenorhabditis elegans (C. elegans) were investigated under the condition of different exposure time and exposure volume fraction (EVF). The stimulating effects on locomotion behavior and growth of C. elegans were observed after acute (24 h) exposure to LL, which were increased firstly and then decreased with the increase of EVF. Meanwhile, the intestinal barrier was not affected by LL, and levels of reactive oxygen species (ROS) and cell apoptosis significantly decreased. However, stimulation and inhibition effects on locomotion behavior and growth of C. elegans were observed when subacute (72 h) exposure to 0.25%-0.5% and 1%-4% of LL, respectively. The intestinal injury index and levels of ROS and cell apoptosis significantly increased when EVF were 2% and 4%. Although the acute exposure of LL had resulted in obviously biological adaptability and antioxidant defense in C. elegans, the protective mechanisms failed to be induced as the exposure time increased (subacute exposure). The toxic effects were confirmed by the down-regulation of genes associated with antioxidant defense and neurobehavior, accompanied by the up-regulation of intestinal injury and cell apoptosis related genes. Moreover, the disturbance of metabolic pathways that associated with locomotion behaviors, growth, and antioxidant defense provided good supplementary evidence for the confirmation of oxidative stress in C. elegans. The research results verified the potential of C. elegans as model organism to determine the complex toxic effects of LL.
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Affiliation(s)
- Manman Zhu
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resource and Environmental Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Meng Zhang
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China
| | - Mingqi Tang
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resource and Environmental Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Jun Wang
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resource and Environmental Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Lili Liu
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resource and Environmental Engineering, East China University of Science and Technology, Shanghai, 200237, China.
| | - Zhiping Wang
- School of Environment Science and Technology, Shanghai Jiao Tong University, Shanghai, 200240, China
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Zhao Y, Hua X, Rui Q, Wang D. Exposure to multi-walled carbon nanotubes causes suppression in octopamine signal associated with transgenerational toxicity induction in C.elegans. CHEMOSPHERE 2023; 318:137986. [PMID: 36716936 DOI: 10.1016/j.chemosphere.2023.137986] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 01/26/2023] [Accepted: 01/26/2023] [Indexed: 06/18/2023]
Abstract
Multi-walled carbon nanotube (MWCNT), a kind of carbon-based nanomaterials, has been extensively utilized in a variety of fields. In Caenorhabditis elegans, MWCNT exposure can result in toxicity not only at parental generation (P0-G) but also in the offspring. However, the underlying mechanisms remain still largely unknown. DAF-12, a transcriptional factor (TF), was previously found to be activated and involved in transgenerational toxicity control after MWCNT exposure. In this study, we observed that exposure to 0.1-10 μg/L MWCNTs caused the significant decrease in expression of tbh-1 encoding a tyramine beta-hydroxylase with the function to govern the octopamine synthesis, suggesting the inhibition in octopamine signal. After exposure to 0.1 μg/L MWCNT, the decrease in tbh-1 expression could be also detected in F1-G and F2-G. Moreover, in germline cells, the TF DAF-12 regulated transgenerational MWCNT toxicity by suppressing expression and function of TBH-1. Meanwhile, exposure to 0.1-10 μg/L MWCNTs induced the increase in octr-1 expression and the decrease in ser-6 expression. After exposure to 0.1 μg/L MWCNT, the increased octr-1 expression and the decreased ser-6 expression were further observed in F1-G and F2-G. Germline TBH-1 controlled transgenerational MWCNT toxicity by regulating the activity of octopamine receptors (SER-6 and OCTR-1) in offspring. Furthermore, in the offspring, SER-6 and OCTR-1 affected the induction of MWCNT toxicity by upregulating or downregulating the level of ELT-2, a GATA TF. Taken together, these findings suggested possible link between alteration in octopamine related signals and MWCNT toxicity induction in offspring in organisms.
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Affiliation(s)
- Yingyue Zhao
- College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Xin Hua
- Medical School, Southeast University, Nanjing, China
| | - Qi Rui
- College of Life Sciences, Nanjing Agricultural University, Nanjing, China.
| | - Dayong Wang
- Medical School, Southeast University, Nanjing, China
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Gubert P, Gubert G, de Oliveira RC, Fernandes ICO, Bezerra IC, de Ramos B, de Lima MF, Rodrigues DT, da Cruz AFN, Pereira EC, Ávila DS, Mosca DH. Caenorhabditis elegans as a Prediction Platform for Nanotechnology-Based Strategies: Insights on Analytical Challenges. TOXICS 2023; 11:239. [PMID: 36977004 PMCID: PMC10059662 DOI: 10.3390/toxics11030239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 02/22/2023] [Accepted: 02/24/2023] [Indexed: 06/18/2023]
Abstract
Nanotechnology-based strategies have played a pivotal role in innovative products in different technological fields, including medicine, agriculture, and engineering. The redesign of the nanometric scale has improved drug targeting and delivery, diagnosis, water treatment, and analytical methods. Although efficiency brings benefits, toxicity in organisms and the environment is a concern, particularly in light of global climate change and plastic disposal in the environment. Therefore, to measure such effects, alternative models enable the assessment of impacts on both functional properties and toxicity. Caenorhabditis elegans is a nematode model that poses valuable advantages such as transparency, sensibility in responding to exogenous compounds, fast response to perturbations besides the possibility to replicate human disease through transgenics. Herein, we discuss the applications of C. elegans to nanomaterial safety and efficacy evaluations from one health perspective. We also highlight the directions for developing appropriate techniques to safely adopt magnetic and organic nanoparticles, and carbon nanosystems. A description was given of the specifics of targeting and treatment, especially for health purposes. Finally, we discuss C. elegans potential for studying the impacts caused by nanopesticides and nanoplastics as emerging contaminants, pointing out gaps in environmental studies related to toxicity, analytical methods, and future directions.
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Affiliation(s)
- Priscila Gubert
- Keizo Asami Institute, iLIKA, Federal University of Pernambuco, Recife 50670-901, Brazil
- Graduate Program in Biology Applied to Health, PPGBAS, Federal University of Pernambuco, Recife 50670-901, Brazil
- Graduate Program in Pure and Applied Chemistry, POSQUIPA, Federal University of Western of Bahia, Bahia 47808-021, Brazil
| | - Greici Gubert
- Postdoctoral Program in Chemistry, Federal University of São Carlos, São Carlos 13565-905, Brazil
| | | | - Isabel Cristina Oliveira Fernandes
- Keizo Asami Institute, iLIKA, Federal University of Pernambuco, Recife 50670-901, Brazil
- Graduate Program in Biology Applied to Health, PPGBAS, Federal University of Pernambuco, Recife 50670-901, Brazil
| | | | - Bruna de Ramos
- Oceanography Department, Federal University of Pernambuco, Recife 50670-901, Brazil
| | - Milena Ferreira de Lima
- Keizo Asami Institute, iLIKA, Federal University of Pernambuco, Recife 50670-901, Brazil
- Graduate Program in Biology Applied to Health, PPGBAS, Federal University of Pernambuco, Recife 50670-901, Brazil
| | - Daniela Teixeira Rodrigues
- Graduate Program in Biological Sciences, Toxicological Biochemistry, Federal University of Santa Maria, Santa Maria 97105-900, Brazil
| | | | - Ernesto Chaves Pereira
- Postdoctoral Program in Chemistry, Federal University of São Carlos, São Carlos 13565-905, Brazil
| | - Daiana Silva Ávila
- Graduate Program in Biological Sciences, Toxicological Biochemistry, Federal University of Santa Maria, Santa Maria 97105-900, Brazil
- Graduate Program in Biochemistry, Federal University of Pampa (UNIPAMPA), Uruguaiana 97501-970, Brazil
| | - Dante Homero Mosca
- Postdoctoral Program in Physics, Federal University of Paraná, Curitiba 80060-000, Brazil
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Zhang W, Li Z, Li G, Kong L, Jing H, Zhang N, Ning J, Gao S, Zhang Y, Wang X, Tao J. PM 2.5 induce lifespan reduction, insulin/IGF-1 signaling pathway disruption and lipid metabolism disorder in Caenorhabditis elegans. Front Public Health 2023; 11:1055175. [PMID: 36817915 PMCID: PMC9932997 DOI: 10.3389/fpubh.2023.1055175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Accepted: 01/09/2023] [Indexed: 02/05/2023] Open
Abstract
Introduction Exposure to fine particulate matter (PM), especially PM2.5, can induce various adverse health effects in populations, including diseases and premature death, but the mechanism of its toxicity is largely unknown. Methods Water-soluble components of PM2.5 (WS-PM2.5) were collected in the north of China in winter, and combined in two groups with the final concentrations of 94 μg/mL (CL group, AQI ≤ 100) and 119 μg/mL (CH group, 100 < AQI ≤ 200), respectively. The acute and long-term toxic effects of WS-PM2.5 samples were evaluated in several aspects such as development, lifespan, healthspan (locomotion behavior, heat stress tolerance, lipofucin). DAF mutants and genes were applied to verify the action of IIS pathway in WS-PM2.5 induced-effects. RNA-Sequencing was performed to elucidate the molecular mechanisms, as well as ROS production and Oil red O staining were also served as means of mechanism exploration. Results Body length and lifespan were shortened by exposure to WS-PM2.5. Healthspan of nematodes revealed adverse effects evaluated by head thrash, body bend, pharyngeal pump, as well as intestinal lipofuscin accumulation and survival time under heat stress. The abbreviated lifespan of daf-2(e1370) strain and reduced expression level of daf-16 and hsp-16.2 indicated that IIS pathway might be involved in the mechanism. Thirty-five abnormally expressed genes screened out by RNA-Sequencing techniques, were functionally enriched in lipid/lipid metabolism and transport, and may contribute substantially to the regulation of PM2.5 induced adverse effects in nematodes. Conclusion WS-PM2.5 exposure induce varying degrees of toxic effects, such as body development, shorten lifespan and healthspan. The IIS pathway and lipid metabolism/transport were disturbed by WS-PM2.5 during WS-PM2.5 exposure, suggesting their regulatory role in lifespan determination.
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Affiliation(s)
- Wenjing Zhang
- Beijing Center for Disease Prevention and Control, Beijing, China
| | - Zinan Li
- Beijing Center for Disease Prevention and Control, Beijing, China
- School of Public Health, Capital Medical University, Beijing, China
| | - Guojun Li
- Beijing Center for Disease Prevention and Control, Beijing, China
- School of Public Health, Capital Medical University, Beijing, China
| | - Ling Kong
- Beijing Center for Disease Prevention and Control, Beijing, China
| | - Haiming Jing
- Beijing Center for Disease Prevention and Control, Beijing, China
- School of Public Health, Capital Medical University, Beijing, China
| | - Nan Zhang
- Beijing Center for Disease Prevention and Control, Beijing, China
| | - Junyu Ning
- Beijing Center for Disease Prevention and Control, Beijing, China
- School of Public Health, Capital Medical University, Beijing, China
| | - Shan Gao
- Beijing Center for Disease Prevention and Control, Beijing, China
| | - Yong Zhang
- Beijing Center for Disease Prevention and Control, Beijing, China
| | - Xinyu Wang
- Beijing Center for Disease Prevention and Control, Beijing, China
| | - Jing Tao
- Beijing Center for Disease Prevention and Control, Beijing, China
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How CM, Huang CW. Dietary Transfer of Zinc Oxide Nanoparticles Induces Locomotive Defects Associated with GABAergic Motor Neuron Damage in Caenorhabditis elegans. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:289. [PMID: 36678041 PMCID: PMC9866546 DOI: 10.3390/nano13020289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 01/06/2023] [Accepted: 01/08/2023] [Indexed: 06/17/2023]
Abstract
The widespread use of zinc oxide nanoparticles (ZnO-NPs) and their release into the environment have raised concerns about the potential toxicity caused by dietary transfer. However, the toxic effects and the mechanisms of dietary transfer of ZnO-NPs have rarely been investigated. We employed the bacteria-feeding nematode Caenorhabditis elegans as the model organism to investigate the neurotoxicity induced by exposure to ZnO-NPs via trophic transfer. Our results showed that ZnO-NPs accumulated in the intestine of C. elegans and also in Escherichia coli OP50 that they ingested. Additionally, impairment of locomotive behaviors, including decreased body bending and head thrashing frequencies, were observed in C. elegans that were fed E. coli pre-treated with ZnO-NPs, which might have occurred because of damage to the D-type GABAergic motor neurons. However, these toxic effects were not apparent in C. elegans that were fed E. coli pre-treated with zinc chloride (ZnCl2). Therefore, ZnO-NPs particulates, rather than released Zn ions, damage the D-type GABAergic motor neurons and adversely affect the locomotive behaviors of C. elegans via dietary transfer.
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Affiliation(s)
- Chun Ming How
- Department of Bioenvironmental Systems Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Chi-Wei Huang
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 81157, Taiwan
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Zhao Y, Chen J, Wang R, Pu X, Wang D. A review of transgenerational and multigenerational toxicology in the in vivo model animal Caenorhabditis elegans. J Appl Toxicol 2023; 43:122-145. [PMID: 35754092 DOI: 10.1002/jat.4360] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 06/09/2022] [Accepted: 06/24/2022] [Indexed: 11/09/2022]
Abstract
A large number of pollutants existing in the environment can last for a long time, and their potential toxic effects can transfer from parents to their offspring. Thus, it is necessary to investigate the toxicity of environmental pollutants across multigenerations and the underlying mechanisms in organisms. Due to its short life cycle and sensitivity to environmental exposures, Caenorhabditis elegans is an important animal model for toxicity assessment of environmental pollutants across multigenerations. In this review, we introduced the transgenerational and multigenerational toxicity caused by various environmental pollutants in C. elegans. Moreover, we discussed the underlying mechanisms for the observed transgenerational and multigenerational toxicity of environmental contaminants in C. elegans.
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Affiliation(s)
- Yunli Zhao
- Medical School, Southeast University, Nanjing, China.,School of Public Health, Bengbu Medical College, Bengbu, China
| | - Jingya Chen
- School of Public Health, Bengbu Medical College, Bengbu, China
| | - Rui Wang
- School of Public Health, Bengbu Medical College, Bengbu, China
| | - Xiaoxiao Pu
- School of Public Health, Bengbu Medical College, Bengbu, China
| | - Dayong Wang
- Medical School, Southeast University, Nanjing, China
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7
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Dou T, Chen J, Wang R, Pu X, Wu H, Zhao Y. Complementary protective effects of autophagy and oxidative response against graphene oxide toxicity in Caenorhabditis elegans. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 248:114289. [PMID: 36379072 DOI: 10.1016/j.ecoenv.2022.114289] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 11/02/2022] [Accepted: 11/09/2022] [Indexed: 06/16/2023]
Abstract
Graphene oxide (GO) exposure may cause damage to C. elegans. However, the role of autophagy and its interactive effect with oxidative response in GO toxicity still remain largely unclear. In the present study, we investigated the protective role of autophagy against GO and its association with oxidative response using C. elegans as an in vivo system. Results indicated that GO exposure induced autophagy in a dose dependent manner in C. elegans. Autophagy inhibitor 3-methyladenine (3-MA) and silencing autophagy genes lgg-1, bec-1 and unc-51 exacerbated the toxicity of GO whereas autophagy activator rapamycin alleviated it. In addition, the antioxidant N-Acetyl-L-cysteine (NAC) effectively suppressed the toxicity of GO with increased resistance to oxidative stress. Worms with RNAi-induced antioxidative genes sod-1, sod-2, sod-3 and sod-4 knockdown were more sensitive to GO. 3-MA increased the expression of superoxide dismutase SOD-3 under GO exposure conditions and exacerbated the toxicity of GO under the anti-oxidation inaction condition by sod-3 RNAi. In contrast, NAC reduced autophagy levels in GO exposed nematodes and increased tolerance to GO in autophagy-defective worms. These results suggested that autophagy and antioxidative response provide complementary protection against GO in C. elegans.
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Affiliation(s)
- Tingting Dou
- School of Public Health, Bengbu Medical College, Bengbu, People's Republic of China
| | - Jingya Chen
- School of Public Health, Bengbu Medical College, Bengbu, People's Republic of China
| | - Rui Wang
- School of Public Health, Bengbu Medical College, Bengbu, People's Republic of China
| | - Xiaoxiao Pu
- School of Public Health, Bengbu Medical College, Bengbu, People's Republic of China
| | - Huazhang Wu
- School of Life Science, Anhui Province Key Laboratory of Translational Cancer Research, Bengbu Medical College, Bengbu, People's Republic of China.
| | - Yunli Zhao
- School of Public Health, Bengbu Medical College, Bengbu, People's Republic of China; Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School, Southeast University, Nanjing, People's Republic of China.
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Zhao Y, Xu R, Hua X, Rui Q, Wang D. Multi-walled carbon nanotubes induce transgenerational toxicity associated with activation of germline long non-coding RNA linc-7 in C.elegans. CHEMOSPHERE 2022; 301:134687. [PMID: 35472608 DOI: 10.1016/j.chemosphere.2022.134687] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/14/2022] [Accepted: 04/20/2022] [Indexed: 05/21/2023]
Abstract
With the increase in application, multi-walled carbon nanotubes (MWCNTs) are potentially bioavailable to environmental organisms. However, the potential transgenerational effect of MWCNTs and underlying mechanisms remains still unclear. Here, we examined transgenerational MWCNT toxicity and the underlying mechanism mediated by germline long non-coding RNAs (lncRNAs) in Caenorhabditis elegans. Exposure to 0.1-10 μg/L MWCNT caused transgenerational toxicity reflected by endpoints of brood size and locomotion behavior. Meanwhile, among germline lncRNAs, expression of 5 lncRNAs were dysregulated by MWCNT exposure. Among these 5 dysregulated lncRNAs, only germline RNAi of linc-7 affected MWCNT toxicity. Increase in germline linc-7 expression was observed transgenerationally, and transgenerational MWCNT toxicity was prevented in linc-7(RNAi) nematodes. Moreover, germline linc-7 controlled transgenerational MWCNT toxicity by activating downstream DAF-12, a transcriptional factor. Therefore, our data indicated the association between induction of transgenerational MWCNT toxicity and increase in germline linc-7 expression in organisms.
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Affiliation(s)
- Yingyue Zhao
- College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Ruoran Xu
- College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xin Hua
- Medical School, Southeast University, Nanjing, 210009, China
| | - Qi Rui
- College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China.
| | - Dayong Wang
- Medical School, Southeast University, Nanjing, 210009, China.
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Zheng F, Chen C, Aschner M. Neurotoxicity Evaluation of Nanomaterials Using C. elegans: Survival, Locomotion Behaviors, and Oxidative Stress. Curr Protoc 2022; 2:e496. [PMID: 35849041 PMCID: PMC9299521 DOI: 10.1002/cpz1.496] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Nanomaterials are broadly used in a variety of industries and consumer products. However, studies have demonstrated that many nanomaterials, including metal-containing nanoparticles and nanoplastics, have neurotoxic effects. Caenorhabditis elegans (C. elegans) is a widely used model organism with numerous advantages for research, including transparency, short life span, well-characterized nervous system, complete connectome, available genome, and numerous genetic tools. C. elegans has been extensively used to assess the neurotoxicity of multiple chemicals via survival assays, behavioral tests, neuronal morphology studies, and various molecular and mechanistic analyses. However, detailed protocols describing general assays in C. elegans to examine the neurotoxic effects of nanomaterials are limited. Here, we describe protocols for assessing nanomaterial neurotoxicity in C. elegans. We describe the steps for exposure and subsequent evaluation of survival, locomotion behavior, and oxidative stress. Survival and locomotion behavior are measured in wild-type N2 strains to assess acute neurotoxicity. Oxidative stress is used as an endpoint here since it is one of the most predominant and common changes induced by nanomaterials. VP596 nematodes, which express GFP upon activation of skn-1 (the worm homolog of Nrf2), are evaluated for assays of oxidative stress in response to test nanomaterials. These assays can be readily used to quickly examine the neurotoxicity of nanomaterials in vivo, laying the foundation for mechanistic studies of nanomaterials and their impacts on health and physiology. © 2022 Wiley Periodicals LLC. Basic Protocol 1: Exposure of C. elegans to nanomaterials Basic Protocol 2: Survival assessment Basic Protocol 3: Assessment of locomotion behavior Basic Protocol 4: Analysis of oxidative stress.
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Affiliation(s)
- Fuli Zheng
- Department of Preventive Medicine, School of Public Health, Fujian Medical University, 1 Xueyuan Road, University Town, Fuzhou, Fujian, P. R. China
| | - Cheng Chen
- Department of Preventive Medicine, School of Public Health, Fujian Medical University, Fuzhou, China
| | - Michael Aschner
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Forchheimer 209, 1300 Morris Park Avenue, Bronx, NY 10461 Bronx, NY, USA
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Côa F, Delite FDS, Strauss M, Martinez DST. Toxicity mitigation and biodistribution of albumin corona coated graphene oxide and carbon nanotubes in Caenorhabditis elegans. NANOIMPACT 2022; 27:100413. [PMID: 35940564 DOI: 10.1016/j.impact.2022.100413] [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: 02/25/2022] [Revised: 06/26/2022] [Accepted: 07/30/2022] [Indexed: 06/15/2023]
Abstract
In this work, the toxicity and biodistribution of graphene oxide (GO) and oxidized multi-walled carbon nanotubes (MWCNT) were investigated in Caenorhabditis elegans. Bovine serum albumin (BSA) was selected as a model protein to evaluate the influence of protein corona formation on materials physicochemical properties, colloidal stability, and toxicity. Biological assays were performed to assess the effects of bare and albumin corona coated materials on survival, oxidative stress, intestinal barrier permeability, growth, reproduction, and fertility. Critical alterations in topography, surface roughness and chemistry of GO and MWCNT were observed due to albumin corona formation. These modifications were associated with changes in colloidal stability of materials and prevention of their aggregation and sedimentation in nematode testing medium. Both GO and MWCNT caused damage to nematode survival, growth, reproduction, and fertility, as well as enhanced oxidative stress and permeability of the intestinal barrier. But GO was more toxic than MWCNT to C. elegans, especially at long-term assays. Albumin corona mitigated 100% of acute and chronic effects of MWCNT. In contrast, the negative effects of GO were not completely mitigated; GO inhibited 16.2% of nematode growth, 86.5% of reproduction, and 32.0% of fertility at the highest concentration evaluated (10 mg L-1), while corona coated GO mitigated 50% and 100% of fertility and growth, respectively. Confocal Raman spectroscopy imaging was crucial to point out that bare and albumin corona coated GO and MWCNT crossed the C. elegans intestinal barrier reaching its reproductive organs. However, BSA corona protected the nematodes targeted organs from negative effects from MWCNT and blocked its translocation to other tissues, while coated GO was translocated inside the nematode affecting the functionality of crucial organs. In addition, coated MWCNT was excreted after 2 h of food resumption, whereas coated GO still accumulated in the nematode intestine. Our results demonstrate that the materials different translocation and excretion patterns in C. elegans had a relation to the impaired physiological functions of primary and secondary organs. This work is a contribution towards a better understanding of the impacts of protein corona on the toxicity of graphene oxide and carbon nanotubes; essential information for biological applications and nanosafety.
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Affiliation(s)
- Francine Côa
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo, Brazil; Center for Nuclear Energy in Agriculture (CENA), University of São Paulo (USP), Piracicaba, São Paulo, Brazil
| | - Fabrício de Souza Delite
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo, Brazil
| | - Mathias Strauss
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo, Brazil; Center of Natural and Human Sciences, Federal University of ABC, Santo André, São Paulo, Brazil
| | - Diego Stéfani Teodoro Martinez
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo, Brazil; Center for Nuclear Energy in Agriculture (CENA), University of São Paulo (USP), Piracicaba, São Paulo, Brazil; School of Technology, University of Campinas (UNICAMP), Limeira, São Paulo, Brazil.
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The Impact of Background-Level Carboxylated Single-Walled Carbon Nanotubes (SWCNTs−COOH) on Induced Toxicity in Caenorhabditis elegans and Human Cells. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19031218. [PMID: 35162241 PMCID: PMC8834598 DOI: 10.3390/ijerph19031218] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 01/19/2022] [Accepted: 01/19/2022] [Indexed: 11/25/2022]
Abstract
Single-walled carbon nanotubes (SWCNTs) are widely utilized for industrial, biomedical, and environmental purposes. The toxicity of Carboxylated SWCNTs (SWCNTs−COOH) in in vivo models, particularly Caenorhabditis elegans (C. elegans), and in vitro human cells is still unclear. In this study, C. elegans was used to study the effects of SWCNTs−COOH on lethality, lifespan, growth, reproduction, locomotion, reactive oxygen species (ROS) generation, and the antioxidant system. Our data show that exposure to ≥1 μg·L−1 SWCNTs−COOH could induce toxicity in nematodes that affects lifespan, growth, reproduction, and locomotion behavior. Moreover, the exposure of nematodes to SWCNTs−COOH induced ROS generation and the alteration of antioxidant gene expression. SWCNTs−COOH induced nanotoxic effects at low dose of 0.100 or 1.00 μg·L−1, particularly for the expression of antioxidants (SOD-3, CTL-2 and CYP-35A2). Similar nanotoxic effects were found in human cells. A low dose of SWCNTs−COOH induced ROS generation and increased the expression of catalase, MnSOD, CuZnSOD, and SOD-2 mRNA but decreased the expression of GPX-2 and GPX-3 mRNA in human monocytes. These findings reveal that background-level SWCNTs−COOH exerts obvious adverse effects, and C. elegans is a sensitive in vivo model that can be used for the biological evaluation of the toxicity of nanomaterials.
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Li Y, Zhong L, Zhang L, Shen X, Kong L, Wu T. Research Advances on the Adverse Effects of Nanomaterials in a Model Organism, Caenorhabditis elegans. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2021; 40:2406-2424. [PMID: 34078000 DOI: 10.1002/etc.5133] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 05/03/2021] [Accepted: 06/01/2021] [Indexed: 06/12/2023]
Abstract
Along with the rapid development of nanotechnology, the biosafety assessment of nanotechnology products, including nanomaterials (NMs), has become more and more important. The nematode Caenorhabditis elegans is a valuable model organism that has been widely used in the field of biology because of its excellent advantages, including low cost, small size, short life span, and highly conservative genomes with vertebral animals. In recent years, the number of nanotoxicological researchers using C. elegans has been growing. According to these available studies, the present review classified the adverse effects of NMs in C. elegans into systematic, cellular, and molecular toxicity, and focused on summarizing and analyzing the underlying mechanisms of metal, metal oxide, and nonmetallic NMs causing toxic effects in C. elegans. Our findings provide insights into what further studies are needed to assess the biosafety of NMs in the ecosystem using C. elegans. Environ Toxicol Chem 2021;40:2406-2424. © 2021 SETAC.
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Affiliation(s)
- Yimeng Li
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, People's Republic of China
| | - Lishi Zhong
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, People's Republic of China
| | - Lili Zhang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, People's Republic of China
| | - Xiaobing Shen
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, People's Republic of China
| | - Lu Kong
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, People's Republic of China
| | - Tianshu Wu
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, Southeast University, Nanjing, People's Republic of China
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13
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Hendler-Neumark A, Wulf V, Bisker G. In vivo imaging of fluorescent single-walled carbon nanotubes within C. elegans nematodes in the near-infrared window. Mater Today Bio 2021; 12:100175. [PMID: 34927042 PMCID: PMC8649898 DOI: 10.1016/j.mtbio.2021.100175] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 11/14/2021] [Accepted: 11/29/2021] [Indexed: 01/02/2023] Open
Abstract
Caenorhabditis elegans (C. elegans) nematodes serve as a model organism for eukaryotes, especially due to their genetic similarity. Although they have many advantages like their small size and transparency, their autofluorescence in the entire visible wavelength range poses a challenge for imaging and tracking fluorescent proteins or dyes using standard fluorescence microscopy. Herein, near-infrared (NIR) fluorescent single-walled carbon nanotubes (SWCNTs) are utilized for in vivo imaging within the gastrointestinal track of C. elegans. The SWCNTs are biocompatible, and do not affect the worms' viability nor their reproduction ability. The worms do not show any autofluorescence in the NIR range, thus enabling the spectral separation between the SWCNT NIR fluorescence and the strong autofluorescence of the worm gut granules. The worms are fed with ssDNA-SWCNT which are visualized mainly in the intestine lumen. The NIR fluorescence is used in vivo to track the contraction and relaxation in the area of the pharyngeal valve at the anterior of the terminal bulb. These biocompatible, non-photobleaching, NIR fluorescent nanoparticles can advance in vivo imaging and tracking within C. elegans and other small model organisms by overcoming the signal-to-noise challenge stemming from the wide-range visible autofluorescence.
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Affiliation(s)
- Adi Hendler-Neumark
- Department of Biomedical Engineering, Faculty of Engineering, Tel Aviv University, Tel Aviv, 6997801, Israel
| | - Verena Wulf
- Department of Biomedical Engineering, Faculty of Engineering, Tel Aviv University, Tel Aviv, 6997801, Israel
| | - Gili Bisker
- Department of Biomedical Engineering, Faculty of Engineering, Tel Aviv University, Tel Aviv, 6997801, Israel
- Center for Physics and Chemistry of Living Systems, Tel-Aviv University, Tel Aviv, 6997801, Israel
- Center for Nanoscience and Nanotechnology, Tel-Aviv University, Tel Aviv, 6997801, Israel
- Center for Light Matter Interaction, Tel-Aviv University, Tel Aviv, 6997801, Israel
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14
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Sivaselvam S, Mohankumar A, Thiruppathi G, Sundararaj P, Viswanathan C, Ponpandian N. Engineering the surface of graphene oxide with bovine serum albumin for improved biocompatibility in Caenorhabditis elegans. NANOSCALE ADVANCES 2020; 2:5219-5230. [PMID: 36132053 PMCID: PMC9418892 DOI: 10.1039/d0na00574f] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 09/12/2020] [Indexed: 06/12/2023]
Abstract
Graphene oxide (GO) has been extensively studied for its potential biomedical applications. However, its potential risk associated with the interactions of GO in a biological system hampers its biomedical applications. Therefore, there is an urgent need to enhance the biocompatibility of GO. In the present study, we decorated the surface of GO with bovine serum albumin (GO-BSA) to mitigate the in vivo toxic properties of GO. An in vivo model Caenorhabditis elegans has been used to study the potential protective effect of BSA decoration in mitigating GO induced toxicity. The BSA decoration on the surface of GO prevents the acute and prolonged toxicity induced by GO in primary and secondary organs by maintaining normal intestinal permeability, defecation behavior, development, and reproduction. Notably, GO-BSA treatment at 0.5-100 mg L-1 does not affect the intracellular redox status and lifespan of C. elegans. Reporter gene expression analysis revealed that exposure to GO-BSA (100 mg L-1) did not significantly influence the nuclear accumulation and expression patterns of DAF-16/FOXO and SKN-1/Nrf2 transcription factors and their downstream target genes sod-3, hsp-16.2, ctl-1,2,3, gcs-1, and gst-4 when compared to exposure to pristine GO. Also, quantitative real-time PCR results showed that GO-BSA did not alter the expression of genes involved in regulating DNA damage checkpoints (cep-1, hus-1 and egl-1) and core signaling pathways of apoptosis (ced-4, ced-3 and ced-9), in contrast to GO treatment. All these findings will have an impact on the future development of safer nanomaterial formulations of graphene and graphene-based materials for environmental and biomedical applications.
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Affiliation(s)
- S Sivaselvam
- Department of Nanoscience and Technology, Bharathiar University Coimbatore 641 046 India +91-422-2422387 +91-422-2428421
| | - A Mohankumar
- Department of Zoology, Bharathiar University Coimbatore 641 046 India
| | - G Thiruppathi
- Department of Zoology, Bharathiar University Coimbatore 641 046 India
| | - P Sundararaj
- Department of Zoology, Bharathiar University Coimbatore 641 046 India
| | - C Viswanathan
- Department of Nanoscience and Technology, Bharathiar University Coimbatore 641 046 India +91-422-2422387 +91-422-2428421
| | - N Ponpandian
- Department of Nanoscience and Technology, Bharathiar University Coimbatore 641 046 India +91-422-2422387 +91-422-2428421
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15
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Rui Q, Dong S, Jiang W, Wang D. Response of canonical Wnt/β-catenin signaling pathway in the intestine to microgravity stress in Caenorhabditis elegans. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 186:109782. [PMID: 31614302 DOI: 10.1016/j.ecoenv.2019.109782] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Revised: 09/16/2019] [Accepted: 10/08/2019] [Indexed: 06/10/2023]
Abstract
Considering the short life-cycle property, Caenorhabditis elegans is a suitable animal model to evaluate the long-term effects of microgravity stress on organisms. Canonical Wnt/β-catenin signaling is evolutionarily conserved in various organisms. We here investigated the response of canonical Wnt/β-catenin signaling pathway to microgravity stress in nematodes. We observed the noticeable response of canonical Wnt/β-catenin signaling to microgravity stress. In contrast, we did not detect the obvious response of non-canonical Wnt/β-catenin signaling to microgravity stress. The canonical β-catenin BAR-1 acted in the intestine to regulate the response to simulated microgravity. Moreover, in the intestine, we identified a signaling cascade of canonical Wnt/β-catenin signaling pathway in response to simulated microgravity, and this signaling cascade contained Frizzled receptor MIG-1, Disheveled protein DSH-2, GSK3A/GSK-3, and β-catenin transcriptional factor BAR-1. Our data suggests an important protective response of canonical Wnt/β-catenin signaling to simulated microgravity in nematodes.
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Affiliation(s)
- Qi Rui
- College of Life Science, Nanjing Agricultural University, Nanjing, 210095, China.
| | - Shuangshuang Dong
- College of Life Science, Nanjing Agricultural University, Nanjing, 210095, China
| | - Wenkang Jiang
- Medical School, Southeast University, Nanjing, 210009, China
| | - Dayong Wang
- Medical School, Southeast University, Nanjing, 210009, China.
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16
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Liu H, Guo D, Kong Y, Rui Q, Wang D. Damage on functional state of intestinal barrier by microgravity stress in nematode Caenorhabditis elegans. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 183:109554. [PMID: 31434019 DOI: 10.1016/j.ecoenv.2019.109554] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Revised: 06/22/2019] [Accepted: 08/06/2019] [Indexed: 06/10/2023]
Abstract
Due to short life cycle, nematode Caenorhabditis elegans is a suitable animal model for assessing the effect of long-term simulated microgravity treatment on organisms. We here investigated the effect of simulated microgravity treatment for 24-h on development and functional state of intestinal barrier in nematodes. Simulated microgravity treatment not only caused a broadened intestinal lumen, but also enhanced intestinal permeability. Intestinal overexpression of SOD-2, a mitochondrial Mn-SOD protein, prevented the damage on functional state of intestinal barrier by simulated microgravity and induced a resistance to toxicity of simulated microgravity, suggesting the crucial role of oxidative stress in inducing the damage on functional state of intestinal barrier in simulated microgravity treated nematodes. For the molecular basis of damage on functional state of intestinal barrier, we observed significant decrease in expressions of some genes (acs-22, erm-1, and hmp-2) required for maintenance of functional state of intestinal barrier in simulated microgravity treated nematodes. Our results highlight the potential of long-term simulated microgravity treatment in inducing intestinal damage in animals.
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Affiliation(s)
- Huanliang Liu
- Key Laboratory of Developmental Genes and Human Diseases in Ministry of Education, Medical School, Southeast University, Nanjing, 210009, China
| | - Dongqin Guo
- College of Biology and Food Engineering, Chongqing Three Gorges University, Wanzhou, 404100, China
| | - Yan Kong
- Key Laboratory of Developmental Genes and Human Diseases in Ministry of Education, Medical School, Southeast University, Nanjing, 210009, China
| | - Qi Rui
- College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, China.
| | - Dayong Wang
- Key Laboratory of Developmental Genes and Human Diseases in Ministry of Education, Medical School, Southeast University, Nanjing, 210009, China.
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17
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Sinis SI, Gourgoulianis KI, Hatzoglou C, Zarogiannis SG. Mechanisms of engineered nanoparticle induced neurotoxicity in Caenorhabditis elegans. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2019; 67:29-34. [PMID: 30710828 DOI: 10.1016/j.etap.2019.01.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 11/19/2018] [Accepted: 01/20/2019] [Indexed: 06/09/2023]
Abstract
The wide-spread implementation of nanoparticles poses a major health concern. Unique biokinetics allow them to transfer to neurons throughout the body and inflict neurotoxicity, which is challenging to evaluate solely in mammalian experimental models due to logistics, financial and ethical limitations. In recent years, the nematode Caenorhabditis elegans has emerged as a promising nanotoxicology experimental surrogate due to characteristics such as ease of culture, short life cycle and high number of progeny. Most importantly, this model organism has a well conserved and fully described nervous system rendering it ideal for use in neurotoxicity assessment of nanoparticles. In that context, this mini review aims to summarize the main mechanistic findings on nanoparticle related neurotoxicity in the setting of Caenorhabditis elegans screening. The injury pathway primarily involves changes in intestinal permeability and defecation frequency both of which facilitate translocation at the site of neurons, where toxicity formation is linked partly to oxidative stress and perturbed neurotransmission.
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Affiliation(s)
- Sotirios I Sinis
- Department of Physiology, Faculty of Medicine, University of Thessaly, BIOPOLIS, Larissa, 41500, Greece
| | - Konstantinos I Gourgoulianis
- Department of Respiratory Medicine, Faculty of Medicine, University of Thessaly, BIOPOLIS, Larissa, 41500, Greece
| | - Chrissi Hatzoglou
- Department of Physiology, Faculty of Medicine, University of Thessaly, BIOPOLIS, Larissa, 41500, Greece
| | - Sotirios G Zarogiannis
- Department of Physiology, Faculty of Medicine, University of Thessaly, BIOPOLIS, Larissa, 41500, Greece.
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18
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Zhao L, Dong S, Zhao Y, Shao H, Krasteva N, Wu Q, Wang D. Dysregulation of let-7 by PEG modified graphene oxide in nematodes with deficit in epidermal barrier. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 169:1-7. [PMID: 30412893 DOI: 10.1016/j.ecoenv.2018.10.106] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 10/27/2018] [Accepted: 10/29/2018] [Indexed: 06/08/2023]
Abstract
In nematode Caenorhabditis elegans, epidermal RNA interference (RNAi) knockdown of bli-1 encoding a cuticular collagen caused the toxicity induction of GO-PEG (PEG surface modified graphene oxide). In this study, we further found that epidermal RNAi knockdown of bli-1 increased expression of a microRNA let-7, and let-7 mutation suppressed the susceptibility of bli-1(RNAi) nematodes to GO-PEG toxicity. let-7 regulated the toxicity induction of GO-PEG by suppressing expression and function of its direct targets (HBL-1 and LIN-41). Like the nematodes with epidermal RNAi knockdown of bli-1, epidermal RNAi knockdown of hbl-1 or lin-41 also induced functional abnormality in epidermal barrier. Therefore, a signaling cascade of BLI-1-let-7-HBL-1/LIN-41 was raised to be involved in GO-PEG toxicity induction. Our data imply the dysregulation of let-7-mediated molecular machinery for developmental timing control by GO-PEG in nematodes with deficit in epidermal barrier caused by bli-1(RNAi).
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Affiliation(s)
- Li Zhao
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School, Southeast University, Nanjing 210009, China
| | - Shuangshuang Dong
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School, Southeast University, Nanjing 210009, China
| | - Yunli Zhao
- Department of Preventive Medicine, Bengbu Medical College, Bengbu 233030, China
| | - Huimin Shao
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School, Southeast University, Nanjing 210009, China
| | - Natalia Krasteva
- Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Science, Sofia 1113, Bulgaria
| | - Qiuli Wu
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School, Southeast University, Nanjing 210009, China
| | - Dayong Wang
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School, Southeast University, Nanjing 210009, China.
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19
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Peng Y, Tong ZH, Chong HJ, Shao XY. Toxic effects of prolonged exposure to [C 14mim]Br on Caenorhabditis elegans. CHEMOSPHERE 2018; 208:226-232. [PMID: 29879555 DOI: 10.1016/j.chemosphere.2018.05.176] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 05/19/2018] [Accepted: 05/28/2018] [Indexed: 05/19/2023]
Abstract
Ionic liquids (ILs) are gradually concerned due to their potential environmental and health risks. In this work, the chronic effects of imidazolium-based ILs, using [C14mim]Br as a representative, were evaluated using model animal Caenorhabditis elegans. Our results show that prolonged exposure (72 h) of ILs to the nematodes at concentrations of 5 and 10 mg/L induced adverse effects on the growth, locomotive behaviors and development. To explore the toxicity mechanism, lipofuscin content, ROS level and the expressions of five superoxide dismutase (SOD) genes were determined after the prolonged exposure. The lipofuscin content, ROS level and expressions of SOD genes did not show significant changes except that the expression of sod-5 was reduced by 2.7-fold following the treatment of 10 mg/L of [C14mim]Br. These results suggest that oxidative stress may not be responsible for the adverse physiological effects induced by relatively low concentrations of imidazolium-based ILs. We further determined the gene expressions of phase I detoxification enzyme cytochrome P450 (CYP), phase II detoxification enzyme UDP-glucuronosyltransferase (UGT) and ATP-binding cassette (ABC) transporter P-glycoprotein (PGP). The results demonstrate that CYP, UGT and PGP may be involved in the detoxification of ILs. Our findings will aid in understanding the mechanisms of both toxicity and detoxification of imidazolium-based ILs in animals.
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Affiliation(s)
- Yong Peng
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Chemistry, University of Science & Technology of China, Hefei, 230026, China
| | - Zhong-Hua Tong
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Chemistry, University of Science & Technology of China, Hefei, 230026, China; Anhui Province Key Laboratory of Polar Environment and Global Change, University of Science & Technology of China, Hefei, 230026, China.
| | - Han-Juan Chong
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Chemistry, University of Science & Technology of China, Hefei, 230026, China
| | - Xin-Yue Shao
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Chemistry, University of Science & Technology of China, Hefei, 230026, China
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Gonzalez-Moragas L, Maurer LL, Harms VM, Meyer JN, Laromaine A, Roig A. Materials and toxicological approaches to study metal and metal-oxide nanoparticles in the model organism Caenorhabditis elegans. MATERIALS HORIZONS 2017; 4:719-746. [PMID: 29057078 PMCID: PMC5648024 DOI: 10.1039/c7mh00166e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Understanding the in vivo fate and transport of nanoparticles (NPs) is challenging, but critical. We review recent studies of metal and metal oxide NPs using the model organism Caenorhabditis elegans, summarizing major findings to date. In a joint transdisciplinary effort, we highlight underutilized opportunities offered by powerful techniques lying at the intersection of mechanistic toxicology and materials science,. To this end, we firstly summarize the influence of exposure conditions (media, duration, C. elegans lifestage) and NP physicochemical properties (size, coating, composition) on the response of C. elegans to NP treatment. Next, we focus on the techniques employed to study NP entrance route, uptake, biodistribution and fate, emphasizing the potential of extending the toolkit available with novel and powerful techniques. Next, we review findings on several NP-induced biological responses, namely transport routes and altered molecular pathways, and illustrate the molecular biology and genetic strategies applied, critically reviewing their strengths and weaknesses. Finally, we advocate the incorporation of a set of minimal materials and toxicological science experiments that will permit meta-analysis and synthesis of multiple studies in the future. We believe this review will facilitate coordinated integration of both well-established and underutilized approaches in mechanistic toxicology and materials science by the nanomaterials research community.
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Affiliation(s)
- Laura Gonzalez-Moragas
- Institut de Ciència de Materials de Barcelona, ICMAB-CSIC. Campus UAB. 08193 Bellaterra, Barcelona, Spain
| | - Laura L Maurer
- ExxonMobil Biomedical Sciences, Inc., Annandale, NJ 08801-3059, United States
| | - Victoria M Harms
- Nicholas School of the Environment and Center for the Environmental Implications of NanoTechnology, Duke University, Durham, NC 27708-0328, United States
| | - Joel N Meyer
- Nicholas School of the Environment and Center for the Environmental Implications of NanoTechnology, Duke University, Durham, NC 27708-0328, United States
| | - Anna Laromaine
- Institut de Ciència de Materials de Barcelona, ICMAB-CSIC. Campus UAB. 08193 Bellaterra, Barcelona, Spain
| | - Anna Roig
- Institut de Ciència de Materials de Barcelona, ICMAB-CSIC. Campus UAB. 08193 Bellaterra, Barcelona, Spain
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Wang N, Wang H, Tang C, Lei S, Shen W, Wang C, Wang G, Wang Z, Wang L. Toxicity evaluation of boron nitride nanospheres and water-soluble boron nitride in Caenorhabditis elegans. Int J Nanomedicine 2017; 12:5941-5957. [PMID: 28860759 PMCID: PMC5571844 DOI: 10.2147/ijn.s130960] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Boron nitride (BN) nanomaterials have been increasingly explored for potential biological applications. However, their toxicity remains poorly understood. Using Caenorhabditis elegans as a whole-animal model for toxicity analysis of two representative types of BN nanomaterials – BN nanospheres (BNNSs) and highly water-soluble BN nanomaterial (named BN-800-2) – we found that BNNSs overall toxicity was less than soluble BN-800-2 with irregular shapes. The concentration thresholds for BNNSs and BN-800-2 were 100 µg·mL−1 and 10 µg·mL−1, respectively. Above this concentration, both delayed growth, decreased life span, reduced progeny, retarded locomotion behavior, and changed the expression of phenotype-related genes to various extents. BNNSs and BN-800-2 increased oxidative stress levels in C. elegans by promoting reactive oxygen species production. Our results further showed that oxidative stress response and MAPK signaling-related genes, such as GAS1, SOD2, SOD3, MEK1, and PMK1, might be key factors for reactive oxygen species production and toxic responses to BNNSs and BN-800-2 exposure. Together, our results suggest that when concentrations are lower than 10 µg·mL−1, BNNSs are more biocompatible than BN-800-2 and are potentially biocompatible material.
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Affiliation(s)
- Ning Wang
- Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital
| | - Hui Wang
- Department of Medical Genetics, Tongji Medical College, Huazhong University of Science and Technology, Wuhan
| | - Chengchun Tang
- Boron Nitride Research Center, School of Materials Science and Engineering, Hebei University of Technology, Tianjin
| | - Shijun Lei
- Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital
| | - Wanqing Shen
- Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital
| | - Cong Wang
- Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital
| | | | - Zheng Wang
- Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital.,Department of Gastrointestinal Surgery
| | - Lin Wang
- Research Center for Tissue Engineering and Regenerative Medicine, Union Hospital.,Department of Clinical Laboratory, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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22
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Zhao L, Wan H, Liu Q, Wang D. Multi-walled carbon nanotubes-induced alterations in microRNA let-7 and its targets activate a protection mechanism by conferring a developmental timing control. Part Fibre Toxicol 2017; 14:27. [PMID: 28728598 PMCID: PMC5520286 DOI: 10.1186/s12989-017-0208-2] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Accepted: 07/14/2017] [Indexed: 12/14/2022] Open
Affiliation(s)
- Li Zhao
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School, Southeast University, Nanjing, 210009, China
| | - Hanxiao Wan
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School, Southeast University, Nanjing, 210009, China
| | - Qizhan Liu
- School of Public Health, Nanjing Medical University, Nanjing, 211166, China
| | - Dayong Wang
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School, Southeast University, Nanjing, 210009, China.
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Gonzalez-Moragas L, Berto P, Vilches C, Quidant R, Kolovou A, Santarella-Mellwig R, Schwab Y, Stürzenbaum S, Roig A, Laromaine A. In vivo testing of gold nanoparticles using the Caenorhabditis elegans model organism. Acta Biomater 2017; 53:598-609. [PMID: 28161575 DOI: 10.1016/j.actbio.2017.01.080] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Revised: 01/26/2017] [Accepted: 01/30/2017] [Indexed: 10/20/2022]
Abstract
Gold nanoparticles (AuNPs) are present in many man-made products and cosmetics and are also used by the food and medical industries. Tight regulations regarding the use of mammalian animals for product testing can hamper the study of the specific interactions between engineered nanoparticles and biological systems. Invertebrate models, such as the nematode Caenorhabditis elegans (C. elegans), can offer alternative approaches during the early phases of nanoparticle discovery. Here, we thoroughly evaluated the biodistribution of 11-nm and 150-nm citrate-capped AuNPs in the model organism C. elegans at multiple scales, moving from micrometric to nanometric resolution and from the organismal to cellular level. We confirmed that the nanoparticles were not able to cross the intestinal and dermal barriers. We investigated the effect of AuNPs on the survival and reproductive performance of C. elegans, and correlated these effects with the uptake of AuNPs in terms of their number, surface area, and metal mass. In general, exposure to 11-nm AuNPs resulted in a higher toxicity than the larger 150-nm AuNPs. NP aggregation inside C. elegans was determined using absorbance microspectroscopy, which allowed the plasmonic properties of AuNPs to be correlated with their confinement inside the intestinal lumen, where anatomical traits, acidic pH and the presence of biomolecules play an essential role on NP aggregation. Finally, quantitative PCR of selected molecular markers indicated that exposure to AuNPs did not significantly affect endocytosis and intestinal barrier integrity. STATEMENT OF SIGNIFICANCE This work highlights how the simple, yet information-rich, animal model C. elegans is ideally suited for preliminary screening of nanoparticles or chemicals mitigating most of the difficulties associated with mammalian animal models, namely the ethical issues, the high cost, and time constraints. This is of particular relevance to the cosmetic, food, and pharmaceutical industries, which all have to justify the use of animals, especially during the discovery, development and initial screening phases. This work provides a detailed and thorough analysis of 11-nm and 150-nm AuNPs at multiple levels of organization (the whole organism, organs, tissues, cells and molecules).
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Zhao Y, Zhi L, Wu Q, Yu Y, Sun Q, Wang D. p38 MAPK-SKN-1/Nrf signaling cascade is required for intestinal barrier against graphene oxide toxicity in Caenorhabditis elegans. Nanotoxicology 2016; 10:1469-1479. [PMID: 27615004 DOI: 10.1080/17435390.2016.1235738] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Biological barrier plays a crucial role for organisms against the possible toxicity from engineered nanomaterials (ENMs). Graphene oxide (GO) has been proven to cause potential toxicity on organisms. However, the molecular mechanisms for intestinal barrier of animals against GO toxicity are largely unclear. Using in vivo assay system of Caenorhabditis elegans, we found that mutation of genes encoding core p38 mitogen-activated protein kinase (MAPK) signaling pathway caused susceptible property to GO toxicity and enhanced translocation of GO into the body of nematodes. Genetic assays indicated that SKN-1/Nrf functioned downstream of p38 MAPK signaling pathway to regulate GO toxicity and translocation. Transcription factor of SKN-1 could regulate GO toxicity and translocation at least through function of its targeted gene of gst-4 encoding one of phase II detoxification proteins. Moreover, intestine-specific RNA interference (RNAi) assay demonstrated that the p38 MAPK-SKN-1/Nrf signaling cascade could function in intestine to regulate GO toxicity and intestinal permeability in GO exposed nematodes. Therefore, p38 MAPK-SKN-1/Nrf signaling cascade may act as an important molecular basis for intestinal barrier against GO toxicity in organisms. Exposure to GO induced significantly increased expression of genes encoding p38 MAPK-SKN-1/Nrf signaling cascade, which further implies that the identified p38 MAPK-SKN-1/Nrf signaling cascade may encode a protection mechanism for nematodes in intestine to be against GO toxicity.
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Affiliation(s)
- Yunli Zhao
- a Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School, Southeast University , Nanjing , China , and.,b Department of Preventive Medicine , Bengbu Medical College , Bengbu , China
| | - Lingtong Zhi
- a Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School, Southeast University , Nanjing , China , and
| | - Qiuli Wu
- a Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School, Southeast University , Nanjing , China , and
| | - Yonglin Yu
- a Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School, Southeast University , Nanjing , China , and
| | - Qiqing Sun
- a Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School, Southeast University , Nanjing , China , and
| | - Dayong Wang
- a Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School, Southeast University , Nanjing , China , and
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Zhuang Z, Li M, Liu H, Luo L, Gu W, Wu Q, Wang D. Function of RSKS-1-AAK-2-DAF-16 signaling cascade in enhancing toxicity of multi-walled carbon nanotubes can be suppressed by mir-259 activation in Caenorhabditis elegans. Sci Rep 2016; 6:32409. [PMID: 27573184 PMCID: PMC5004105 DOI: 10.1038/srep32409] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 08/04/2016] [Indexed: 01/04/2023] Open
Abstract
Caenorhabditis elegans is an important non-mammalian alternative assay model for toxicological study. Previous study has indicated that exposure to multi-walled carbon nanotubes (MWCNTs) dysregulated the transcriptional expression of mir-259. In this study, we examined the molecular basis for mir-259 in regulating MWCNTs toxicity in nematodes. Mutation of mir-259 induced a susceptible property to MWCNTs toxicity, and MWCNTs exposure induced a significant increase in mir-259::GFP in pharyngeal/intestinal valve and reproductive tract, implying that mir-259 might mediate a protection mechanisms for nematodes against MWCNTs toxicity. RSKS-1, a putative ribosomal protein S6 kinase, acted as the target for mir-259 in regulating MWCNTs toxicity, and mutation of rsks-1 suppressed the susceptible property of mir-259 mutant to MWCNTs toxicity. Moreover, mir-259 functioned in pharynx-intestinal valve and RSKS-1 functioned in pharynx to regulate MWCNTs toxicity. Furthermore, RSKS-1 regulated MWCNTs toxicity by suppressing the function of AAK-2-DAF-16 signaling cascade. Our results will strengthen our understanding the microRNAs mediated protection mechanisms for animals against the toxicity from certain nanomaterials.
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Affiliation(s)
- Ziheng Zhuang
- School of Pharmaceutical Engineering and Life Sciences, Changzhou University, Changzhou 213164, China.,Changzhou No. 7 People's Hospital, Changzhou 213011, China
| | - Min Li
- School of Pharmaceutical Engineering and Life Sciences, Changzhou University, Changzhou 213164, China.,Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School, Southeast University, Nanjing 210009, China
| | - Hui Liu
- School of Pharmaceutical Engineering and Life Sciences, Changzhou University, Changzhou 213164, China
| | - Libo Luo
- Changzhou No. 7 People's Hospital, Changzhou 213011, China
| | - Weidong Gu
- Changzhou No. 7 People's Hospital, Changzhou 213011, China
| | - Qiuli Wu
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School, Southeast University, Nanjing 210009, China
| | - Dayong Wang
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School, Southeast University, Nanjing 210009, China
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26
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Yang R, Rui Q, Kong L, Zhang N, Li Y, Wang X, Tao J, Tian P, Ma Y, Wei J, Li G, Wang D. Metallothioneins act downstream of insulin signaling to regulate toxicity of outdoor fine particulate matter (PM 2.5) during Spring Festival in Beijing in nematode Caenorhabditis elegans. Toxicol Res (Camb) 2016; 5:1097-1105. [PMID: 30090415 PMCID: PMC6060693 DOI: 10.1039/c6tx00022c] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2016] [Accepted: 04/16/2016] [Indexed: 12/25/2022] Open
Abstract
In this study, we performed the toxicological assessment of outdoor PM2.5 collected from Beijing during Spring Festival using the in vivo assay system of Caenorhabditis elegans. Acute exposure to outdoor PM2.5 at a concentration of 10 mg L-1 and prolonged exposure to outdoor PM2.5 at concentrations of 0.1-10 mg L-1 decreased locomotion behavior and caused significant induction of intestinal ROS production. Meanwhile, outdoor PM2.5 exposure induced significant expression of gene (mtl-1 and mtl-2) encoded metallothioneins in the intestine. Mutation of the mtl-1 or mtl-2 gene resulted in a susceptible property of nematodes to outdoor PM2.5 toxicity. Genetic assays suggested that mtl-1 and mtl-2 genes acted downstream of the daf-16 gene encoding a FOXO transcriptional factor and daf-2 gene encoding an insulin receptor in the insulin signaling pathway to regulate outdoor PM2.5 toxicity. DAF-2 further acted upstream of DAF-16 and suppressed the function of DAF-16 to regulate outdoor PM2.5 toxicity. Therefore, we identified a signaling cascade of DAF-2-DAF-16-MTL-1/2 in the control of outdoor PM2.5 toxicity in nematodes. Our study provides an important molecular basis for the potential toxicity of outdoor PM2.5 during Spring Festival in Beijing in nematodes. Especially, our study will highlight the potential adverse effects of outdoor PM2.5 during Spring Festival on environmental organisms.
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Affiliation(s)
- Ruilong Yang
- College of Life Sciences , Nanjing Agricultural University , Nanjing 210095 , China .
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education , Medical School , Southeast University , Nanjing 210009 , China .
| | - Qi Rui
- College of Life Sciences , Nanjing Agricultural University , Nanjing 210095 , China .
| | - Ling Kong
- Beijing Research Center for Prevention Medicine , Beijing 100013 , China .
| | - Nan Zhang
- Beijing Research Center for Prevention Medicine , Beijing 100013 , China .
| | - Yu Li
- Beijing Research Center for Prevention Medicine , Beijing 100013 , China .
| | - Xinyu Wang
- Beijing Research Center for Prevention Medicine , Beijing 100013 , China .
| | - Jing Tao
- Beijing Research Center for Prevention Medicine , Beijing 100013 , China .
| | - Peiyao Tian
- Beijing Research Center for Prevention Medicine , Beijing 100013 , China .
| | - Yan Ma
- Beijing Research Center for Prevention Medicine , Beijing 100013 , China .
| | - Jianrong Wei
- Beijing Research Center for Prevention Medicine , Beijing 100013 , China .
| | - Guojun Li
- Beijing Research Center for Prevention Medicine , Beijing 100013 , China .
- School of Public Health , Capital Medical University , Beijing 100069 , China
| | - Dayong Wang
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education , Medical School , Southeast University , Nanjing 210009 , China .
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Genome-wide identification and functional analysis of long noncoding RNAs involved in the response to graphene oxide. Biomaterials 2016; 102:277-91. [PMID: 27348851 DOI: 10.1016/j.biomaterials.2016.06.041] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 06/16/2016] [Accepted: 06/19/2016] [Indexed: 11/23/2022]
Abstract
Long noncoding RNAs (lncRNAs), which are defined as noncoding RNAs having at least 200 nucleotides, can potentially regulate various biological processes. However, the roles of lncRNAs in regulating cellular response to engineered nanomaterials (ENMs) are still unclear. Using Hiseq 2000 sequencing technique, we performed a genome-wide screen to identify lncRNAs involved in the control of toxicity of graphene oxide (GO) using in vivo Caenorhabditis elegans assay system. HiSeq 2000 sequencing, followed by quantitative analysis, identified only 34 dysregulated lncRNAs in GO exposed nematodes. Bioinformatics analysis implies the biological processes and signaling pathways mediated by candidate lncRNAs involved in the control of GO toxicity. A lncRNAs-miRNAs network possibly involved in the control of GO toxicity was further raised. Moreover, we identified the shared lncRNAs based on the molecular regulation basis for chemical surface modifications and/or genetic mutations in reducing GO toxicity. We further provide direct evidence that these shared lncRNAs, linc-37 and linc-14, were involved in the control of chemical surface modifications and genetic mutations in reducing GO toxicity. linc-37 binding to transcriptional factor FOXO/DAF-16 might be important for the control of GO toxicity. Our whole-genome identification and functional analysis of lncRNAs highlights the important roles of lncRNAs based molecular mechanisms for cellular responses to ENMs in organisms.
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Zhao Y, Jia R, Qiao Y, Wang D. Glycyrrhizic acid, active component from Glycyrrhizae radix , prevents toxicity of graphene oxide by influencing functions of microRNAs in nematode Caenorhabditis elegans. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2016; 12:735-744. [DOI: 10.1016/j.nano.2015.10.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Revised: 10/07/2015] [Accepted: 10/10/2015] [Indexed: 10/22/2022]
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A MicroRNA-Mediated Insulin Signaling Pathway Regulates the Toxicity of Multi-Walled Carbon Nanotubes in Nematode Caenorhabditis elegans. Sci Rep 2016; 6:23234. [PMID: 26984256 PMCID: PMC4794644 DOI: 10.1038/srep23234] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Accepted: 03/02/2016] [Indexed: 12/25/2022] Open
Abstract
The underlying mechanisms for functions of microRNAs (miRNAs) in regulating toxicity of nanomaterials are largely unclear. Using Illumina HiSeq(TM) 2000 sequencing technique, we obtained the dysregulated mRNA profiling in multi-walled carbon nanotubes (MWCNTs) exposed nematodes. Some dysregulated genes encode insulin signaling pathway. Genetic experiments confirmed the functions of these dysregulated genes in regulating MWCNTs toxicity. In the insulin signaling pathway, DAF-2/insulin receptor regulated MWCNTs toxicity by suppressing function of DAF-16/FOXO transcription factor. Moreover, we raised a miRNAs-mRNAs network involved in the control of MWCNTs toxicity. In this network, mir-355 might regulate MWCNTs toxicity by inhibiting functions of its targeted gene of daf-2, suggesting that mir-355 may regulate functions of the entire insulin signaling pathway by acting as an upregulator of DAF-2, the initiator of insulin signaling pathway, in MWCNTs exposed nematodes. Our results provides highlight on understanding the crucial role of miRNAs in regulating toxicity of nanomaterials in organisms.
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30
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Sun L, Wu Q, Liao K, Yu P, Cui Q, Rui Q, Wang D. Contribution of heavy metals to toxicity of coal combustion related fine particulate matter (PM2.5) in Caenorhabditis elegans with wild-type or susceptible genetic background. CHEMOSPHERE 2016; 144:2392-400. [PMID: 26610299 DOI: 10.1016/j.chemosphere.2015.11.028] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2015] [Revised: 10/24/2015] [Accepted: 11/08/2015] [Indexed: 05/16/2023]
Abstract
Contribution of chemical components in coal combustion related fine particulate matter (PM2.5) to its toxicity is largely unclear. We focused on heavy metals in PM2.5 to investigate their contribution to toxicity formation in Caenorhabditis elegans. Among 8 heavy metals examined (Fe, Zn, Pb, As, Cd, Cr, Cu, and Ni), Pb, Cr, and Cu potentially contributed to PM2.5 toxicity in wild-type nematodes. Combinational exposure to any two of these three heavy metals caused higher toxicity than exposure to Pb, Cr, or Cu alone. Toxicity from the combinational exposure to Pb, Cr, and Cu at the examined concentrations was higher than exposure to PM2.5 (100 mg/L). Moreover, mutation of sod-2 or sod-3 gene encoding Mn-SOD increased susceptibility in nematodes exposed to Fe, Zn, or Ni, although Fe, Zn, or Ni at the examined concentration did not lead to toxicity in wild-type nematodes. Our results highlight the potential contribution of heavy metals to PM2.5 toxicity in environmental organisms.
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Affiliation(s)
- Lingmei Sun
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School of Southeast University, Nanjing 210009, China
| | - Quli Wu
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School of Southeast University, Nanjing 210009, China
| | - Kai Liao
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School of Southeast University, Nanjing 210009, China
| | - Peihang Yu
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School of Southeast University, Nanjing 210009, China
| | - Qiuhong Cui
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School of Southeast University, Nanjing 210009, China
| | - Qi Rui
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Dayong Wang
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School of Southeast University, Nanjing 210009, China.
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31
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Ruan Q, Qiao Y, Zhao Y, Xu Y, Wang M, Duan J, Wang D. Beneficial effects of Glycyrrhizae radix extract in preventing oxidative damage and extending the lifespan of Caenorhabditis elegans. JOURNAL OF ETHNOPHARMACOLOGY 2016; 177:101-110. [PMID: 26626487 DOI: 10.1016/j.jep.2015.10.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Revised: 09/08/2015] [Accepted: 10/02/2015] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Glycyrrhizae radix (GR) is a medicinal herb extensively used in traditional Chinese medicine. This study aimed to evaluate the pharmacological effect of GR and the possible mechanisms of GR, to provide a pharmacological basis in traditional medicine. MATERIALS AND METHODS In the present study, C. elegans (L1-larvae to young adults) was exposed to 0.12-0.24 g/mL of GR in 12-well sterile tissue culture plates at 20°C in the presence of food. Lethality, growth, lifespan, reproduction, locomotion, metabolism, intestinal autofluorescence, and reactive oxygen species (ROS) production assays were performed to investigate the possible safety profile and beneficial effects of GR in these nematodes. We found that the lifespan of nematodes exposed to 0.18-0.24 g/mL of GR was extended. We then determined the mechanism of the longevity effect of GR using quantitative reverse transcription PCR and oxidative stress resistance assays induced by heat and paraquat. RESULTS Prolonged exposure to 0.12-0.24 g/mL of GR did not induce lethality, alter body length, morphology or metabolism, affect brood size, locomotion, the development of D-type GABAergic motor neurons, or induce significant induction of intestinal autofluorescence and intestinal ROS production. In C. elegans, pretreatment with GR suppressed the damage due to heat-stress or oxidative stress induced by paraquat, a ROS generator, on lifespan, and inhibited the induction of intestinal ROS production induced by paraquat. Moreover, prolonged exposure to GR extended lifespan, increased locomotion and decreased intestinal ROS production in adult day-12 nematodes. Furthermore, prolonged exposure to GR significantly altered the expression patterns of genes encoding the insulin-like signaling pathway which had a key role in longevity control. Mutation of daf-16 gene encoding the FOXO transcription factor significantly decreased lifespan, suppressed locomotion, and increased intestinal ROS production in GR exposed adult nematodes. CONCLUSIONS GR is relatively safe and has protective effects against the damage caused by both heat-stress and oxidative stress at the examined concentrations. Furthermore, GR is capable of extending the lifespan of nematodes, and the insulin-like signaling pathway may play a crucial role in regulating the lifespan-extending effects of GR.
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Affiliation(s)
- Qinli Ruan
- Center for Drug Safety Evaluation and Research, Nanjing University of Chinese Medicine, Nanjing 210023, China; Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing 210023, China; Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yan Qiao
- Center for Drug Safety Evaluation and Research, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yunli Zhao
- Key Laboratory of Developmental Genes and Human Disease in Ministry of Education, Medical School of Southeast University, Nanjing 210009, China
| | - Yun Xu
- Center for Drug Safety Evaluation and Research, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Meng Wang
- Center for Drug Safety Evaluation and Research, Nanjing University of Chinese Medicine, Nanjing 210023, China; Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing 210023, China.
| | - Jinao Duan
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, Nanjing 210023, China; Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing 210023, China.
| | - Dayong Wang
- Key Laboratory of Developmental Genes and Human Disease in Ministry of Education, Medical School of Southeast University, Nanjing 210009, China.
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32
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Shakoor S, Sun L, Wang D. Multi-walled carbon nanotubes enhanced fungal colonization and suppressed innate immune response to fungal infection in nematodes. Toxicol Res (Camb) 2016; 5:492-499. [PMID: 30090363 DOI: 10.1039/c5tx00373c] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 12/30/2015] [Indexed: 11/21/2022] Open
Abstract
The underlying molecular mechanisms for multi-walled carbon nanotube (MWCNT)-induced in vivo toxicity on innate immunity are still largely unclear. Considering the potential of Caenorhabditis elegans for the study of innate immune response of animals, we employed this in vivo assay system to investigate the effects of MWCNTs on innate immune response of animals and the underlying mechanisms. Pre-exposure to MWCNTs at concentrations more than 100 μg L-1 enhanced the adverse effect of fungal infection in reducing lifespan. With regard to the underlying cellular mechanisms, we found that MWCNT pre-exposure enhanced colony formation of Candida albicans in the body of nematodes, and suppressed innate immune response of nematodes by decreasing expression levels of some antimicrobial genes. With regard to the underlying molecular mechanisms, we found that MWCNTs decreased expression levels of pmk-1, sek-1, and nsy-1 genes encoding the p38 mitogen activated protein kinase (MAPK) signaling pathway, and inhibited translational expression of PMK-1::GFP in the intestine and phosphorylation of PMK-1. Epistasis assays showed that MWCNTs required the involvement of the p38 MAPK signaling pathway mediated by a NSY-1-SEK-1-PMK-1 cascade to enhance the toxicity of fungal infection, increase fungal colony formation, and suppress innate immune response. Thus, our results suggest that MWCNTs may possess immunoinhibitory effects by affecting the functions of the p38 MAPK signaling pathway. Our study also provides meaningful insights into the role of innate immune system of hosts against the toxicity of environmental toxicants.
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Affiliation(s)
- Shumaila Shakoor
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education , Medical School , Southeast University , Nanjing 210009 , China .
| | - Lingmei Sun
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education , Medical School , Southeast University , Nanjing 210009 , China .
| | - Dayong Wang
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education , Medical School , Southeast University , Nanjing 210009 , China .
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33
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Ficociello G, Salemme A, Uccelletti D, Fiorito S, Togna AR, Vallan L, González-Domínguez JM, Da Ros T, Francisci S, Montanari A. Evaluation of the efficacy of carbon nanotubes for delivering peptides into mitochondria. RSC Adv 2016. [DOI: 10.1039/c6ra14254k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Future therapy for mitochondrial pathologies: CKKSFLSPRTALINFLVK peptide from mitochondrial-LeuRS has a mitochondrial targeting activity when conjugated with multi-walled carbon nanotubes.
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Affiliation(s)
- Graziella Ficociello
- Department of Biology and Biotechnologies “Charles Darwin”
- Sapienza University of Rome
- 5-00185 Rome
- Italy
| | - Adele Salemme
- Department of Physiology and Pharmacology “Vittorio Erspamer”
- Sapienza University of Rome
- 5-00185 Rome
- Italy
| | - Daniela Uccelletti
- Department of Biology and Biotechnologies “Charles Darwin”
- Sapienza University of Rome
- 5-00185 Rome
- Italy
| | - Silvana Fiorito
- Institute of Translational Pharmacology – CNR
- 100-00133 Rome
- Italy
| | - Anna Rita Togna
- Department of Physiology and Pharmacology “Vittorio Erspamer”
- Sapienza University of Rome
- 5-00185 Rome
- Italy
| | - Lorenzo Vallan
- INSTM Unit of Trieste
- Department of Chemical and Pharmaceutical Sciences
- University of Trieste
- 1-34127 Trieste
- Italy
| | - Jose M. González-Domínguez
- INSTM Unit of Trieste
- Department of Chemical and Pharmaceutical Sciences
- University of Trieste
- 1-34127 Trieste
- Italy
| | - Tatiana Da Ros
- INSTM Unit of Trieste
- Department of Chemical and Pharmaceutical Sciences
- University of Trieste
- 1-34127 Trieste
- Italy
| | - Silvia Francisci
- Department of Biology and Biotechnologies “Charles Darwin”
- Sapienza University of Rome
- 5-00185 Rome
- Italy
| | - Arianna Montanari
- Department of Biology and Biotechnologies “Charles Darwin”
- Sapienza University of Rome
- 5-00185 Rome
- Italy
- Pasteur Institute – Cenci Bolognetti Foundation
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34
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Zhi L, Fu W, Wang X, Wang D. ACS-22, a protein homologous to mammalian fatty acid transport protein 4, is essential for the control of the toxicity and translocation of multi-walled carbon nanotubes in Caenorhabditis elegans. RSC Adv 2016. [DOI: 10.1039/c5ra23543j] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
ACS-22 plays an essential role in regulating toxicity and translocation of MWCNTs.
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Affiliation(s)
- Lingtong Zhi
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education
- Medical School
- Southeast University
- Nanjing 210009
- China
| | - Wei Fu
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education
- Medical School
- Southeast University
- Nanjing 210009
- China
| | - Xiong Wang
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education
- Medical School
- Southeast University
- Nanjing 210009
- China
| | - Dayong Wang
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education
- Medical School
- Southeast University
- Nanjing 210009
- China
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35
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Zhao Y, Wu Q, Wang D. An epigenetic signal encoded protection mechanism is activated by graphene oxide to inhibit its induced reproductive toxicity in Caenorhabditis elegans. Biomaterials 2015; 79:15-24. [PMID: 26686978 DOI: 10.1016/j.biomaterials.2015.11.052] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Revised: 11/12/2015] [Accepted: 11/29/2015] [Indexed: 11/15/2022]
Abstract
Although many studies have suggested the adverse effects of engineered nanomaterials (ENMs), the self-protection mechanisms for organisms against ENMs toxicity are still largely unclear. Using Caenorhabditis elegans as an in vivo assay system, our results suggest the toxicity of graphene oxide in reducing reproductive capacity by inducing damage on gonad development. The observed reproductive toxicity of GO on gonad development was due to the combinational effect of germline apoptosis and cell cycle arrest, and DNA damage activation might act as an inducer for this combinational effect. For the underlying molecular mechanism of reproductive toxicity of GO, we raised a signaling cascade of HUS-1/CLK-2-CEP-1-EGL-1-CED-4-CED-3 to explain the roles of core apoptosis signaling pathway and DNA damage checkpoints. Moreover, we identified a miRNA regulation mechanism activated by GO to suppress its induced reproductive toxicity. A mir-360 regulation mechanism was activated by GO to suppress its induced DNA damage-apoptosis signaling cascade through affecting component of CEP-1. Our identified epigenetic signal encoded protection mechanism activated by GO suggests a novel self-protection mechanism for organisms against the ENMs toxicity.
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Affiliation(s)
- Yunli Zhao
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School, Southeast University, Nanjing 210009, China
| | - Qiuli Wu
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School, Southeast University, Nanjing 210009, China
| | - Dayong Wang
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School, Southeast University, Nanjing 210009, China.
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36
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Zhao Y, Yu X, Jia R, Yang R, Rui Q, Wang D. Lactic Acid Bacteria Protects Caenorhabditis elegans from Toxicity of Graphene Oxide by Maintaining Normal Intestinal Permeability under different Genetic Backgrounds. Sci Rep 2015; 5:17233. [PMID: 26611622 PMCID: PMC4661518 DOI: 10.1038/srep17233] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Accepted: 10/27/2015] [Indexed: 11/23/2022] Open
Abstract
Lactic acid bacteria (LAB) is safe and useful for food and feed fermentation. We employed Caenorhabditis elegans to investigate the possible beneficial effect of LAB (Lactobacillus bulgaricus) pretreatment against toxicity of graphene oxide (GO) and the underlying mechanisms. LAB prevented GO toxicity on the functions of both primary and secondary targeted organs in wild-type nematodes. LAB blocked translocation of GO into secondary targeted organs through intestinal barrier by maintaining normal intestinal permeability in wild-type nematodes. Moreover, LAB prevented GO damage on the functions of both primary and secondary targeted organs in exposed nematodes with mutations of susceptible genes (sod-2, sod-3, gas-1, and aak-2) to GO toxicity by sustaining normal intestinal permeability. LAB also sustained the normal defecation behavior in both wild-type nematodes and nematodes with mutations of susceptible genes. Therefore, the beneficial role of LAB against GO toxicity under different genetic backgrounds may be due to the combinational effects on intestinal permeability and defecation behavior. Moreover, the beneficial effects of LAB against GO toxicity was dependent on the function of ACS-22, homologous to mammalian FATP4 to mammalian FATP4. Our study provides highlight on establishment of pharmacological strategy to protect intestinal barrier from toxicity of GO.
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Affiliation(s)
- Yunli Zhao
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School, Southeast University, Nanjing 210009, China
- Department of Preventive Medicine, Bengbu Medical College, Bengbu 233020, China
| | - Xiaoming Yu
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School, Southeast University, Nanjing 210009, China
| | - Ruhan Jia
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School, Southeast University, Nanjing 210009, China
| | - Ruilong Yang
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School, Southeast University, Nanjing 210009, China
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Qi Rui
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Dayong Wang
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School, Southeast University, Nanjing 210009, China
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37
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Gonzalez-Moragas L, Yu SM, Carenza E, Laromaine A, Roig A. Protective Effects of Bovine Serum Albumin on Superparamagnetic Iron Oxide Nanoparticles Evaluated in the Nematode Caenorhabditis elegans. ACS Biomater Sci Eng 2015; 1:1129-1138. [PMID: 33429554 DOI: 10.1021/acsbiomaterials.5b00253] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Nanomaterials give rise to unique biological reactivity that needs to be thoroughly investigated. The quest for enhanced magnetic nanomaterials of different shapes, magnetic properties, or surface coatings continues for applications in drug delivery, targeting therapies, biosensing, and magnetic separation. In this context, the use of simple in vivo models, such as Caenorhabditis elegans, to biologically evaluate nanoparticles is currently in increasing demand as it offers low-cost and information-rich experiments. In this work, we evaluated how surface modification (citrate- and protein-coated) of superparamagnetic iron oxide nanoparticles (C-SPIONs and BSA-SPIONs, respectively) induces changes in their toxicological profile and biodistribution using the animal model C. elegans and combining techniques from materials science and biochemistry. The acute toxicity and nanoparticle distribution were assessed in two populations of worms (adults and larvae) treated with both types of SPIONs. After 24 h treatment, nanoparticles were localized in the alimentary system of C. elegans; acute toxicity was stronger in adults and larvae exposed to C-SPIONs rather than BSA-SPIONs. Adult uptake was similar for both SPION types, whereas uptake in larvae was dependent on the surface coating, being higher for BSA-SPIONs. Nanoparticle size was evaluated upon excretion, and a slight size decrease was found. Interestingly, all results indicate the protective effects of the BSA to prevent degradation of the nanoparticles and decrease acute toxicity to the worms, especially at high concentrations. We argue that this relevant information on the chemistry and toxicity of SPIONs in vivo could not be gathered using more classical in vitro approaches such as cell culture assays, thus endorsing the potential of C. elegans to assess nanomaterials at early stages of their synthetic formulations.
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Affiliation(s)
- Laura Gonzalez-Moragas
- Institut de Ciència de Materials de Barcelona, CSIC, Campus UAB, 08193 Bellaterra, Spain
| | - Si-Ming Yu
- Institut de Ciència de Materials de Barcelona, CSIC, Campus UAB, 08193 Bellaterra, Spain
| | - Elisa Carenza
- Institut de Ciència de Materials de Barcelona, CSIC, Campus UAB, 08193 Bellaterra, Spain
| | - Anna Laromaine
- Institut de Ciència de Materials de Barcelona, CSIC, Campus UAB, 08193 Bellaterra, Spain
| | - Anna Roig
- Institut de Ciència de Materials de Barcelona, CSIC, Campus UAB, 08193 Bellaterra, Spain
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38
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Sun L, Lin Z, Liao K, Xi Z, Wang D. Adverse effects of coal combustion related fine particulate matter (PM2.5) on nematode Caenorhabditis elegans. THE SCIENCE OF THE TOTAL ENVIRONMENT 2015; 512-513:251-260. [PMID: 25625637 DOI: 10.1016/j.scitotenv.2015.01.058] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Revised: 01/15/2015] [Accepted: 01/19/2015] [Indexed: 06/04/2023]
Abstract
The toxic effects of coal combustion related fine particulate matter (PM2.5), collected from Datong, Shanxi province, China, on nematode Caenorhabditis elegans were investigated. Exposure to PM2.5 resulted in deficits in development, reproduction, locomotion behavior, and lifespan, and induction of intestinal autofluorescence or reactive oxygen species (ROS) production. Prolonged exposure to PM2.5 led to more severe toxicity on nematodes than acute exposure. In addition, exposure to PM2.5 induced altered expression patterns of genes required for the control of oxidative stress. Reduction in mean defecation cycle length and developmental deficits in AVL and DVB neurons, which are involved in the control of defecation behavior, were also triggered by PM2.5 exposure. Thus, oxidative stress and abnormal defecation behavior may contribute greatly to the toxicity of coal combustion related PM2.5 in nematodes. The results also imply that the long-term adverse effects of coal combustion related PM2.5 on environmental organisms should be carefully considered.
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Affiliation(s)
- Lingmei Sun
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School of Southeast University, Nanjing 210009, China
| | - Zhiqing Lin
- Institute of Health and Environmental Medicine, Key Laboratory of Risk Assessment and Control Technology for Environmental & Food Safety, Tianjin 300050, China
| | - Kai Liao
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School of Southeast University, Nanjing 210009, China
| | - Zhuge Xi
- Institute of Health and Environmental Medicine, Key Laboratory of Risk Assessment and Control Technology for Environmental & Food Safety, Tianjin 300050, China.
| | - Dayong Wang
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School of Southeast University, Nanjing 210009, China.
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39
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Jung SK, Qu X, Aleman-Meza B, Wang T, Riepe C, Liu Z, Li Q, Zhong W. Multi-endpoint, high-throughput study of nanomaterial toxicity in Caenorhabditis elegans. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2015; 49:2477-85. [PMID: 25611253 PMCID: PMC4336152 DOI: 10.1021/es5056462] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
The booming nanotechnology industry has raised public concerns about the environmental health and safety impact of engineered nanomaterials (ENMs). High-throughput assays are needed to obtain toxicity data for the rapidly increasing number of ENMs. Here we present a suite of high-throughput methods to study nanotoxicity in intact animals using Caenorhabditis elegans as a model. At the population level, our system measures food consumption of thousands of animals to evaluate population fitness. At the organism level, our automated system analyzes hundreds of individual animals for body length, locomotion speed, and lifespan. To demonstrate the utility of our system, we applied this technology to test the toxicity of 20 nanomaterials at four concentrations. Only fullerene nanoparticles (nC60), fullerol, TiO2, and CeO2 showed little or no toxicity. Various degrees of toxicity were detected from different forms of carbon nanotubes, graphene, carbon black, Ag, and fumed SiO2 nanoparticles. Aminofullerene and ultraviolet-irradiated nC60 also showed small but significant toxicity. We further investigated the effects of nanomaterial size, shape, surface chemistry, and exposure conditions on toxicity. Our data are publicly available at the open-access nanotoxicity database www.QuantWorm.org/nano.
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Affiliation(s)
- Sang-Kyu Jung
- Department of Biosciences, Rice University, Houston, Texas 77005-1892, United States
| | - Xiaolei Qu
- Department of Civil and Environmental Engineering, Rice University, Houston, Texas 77005-1892, United States
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Jiangsu 210023, China
| | - Boanerges Aleman-Meza
- Department of Biosciences, Rice University, Houston, Texas 77005-1892, United States
| | - Tianxiao Wang
- Department of Civil and Environmental Engineering, Rice University, Houston, Texas 77005-1892, United States
| | - Celeste Riepe
- Department of Biosciences, Rice University, Houston, Texas 77005-1892, United States
| | - Zheng Liu
- Department of Biosciences, Rice University, Houston, Texas 77005-1892, United States
| | - Qilin Li
- Department of Civil and Environmental Engineering, Rice University, Houston, Texas 77005-1892, United States
- Corresponding Author: Telephone: 713-348-2307, ;
| | - Weiwei Zhong
- Department of Biosciences, Rice University, Houston, Texas 77005-1892, United States
- Corresponding Author: Telephone: 713-348-2307, ;
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40
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Yu X, Guan X, Wu Q, Zhao Y, Wang D. Vitamin E ameliorates neurodegeneration related phenotypes caused by neurotoxicity of Al2O3-nanoparticles in C. elegans. Toxicol Res (Camb) 2015. [DOI: 10.1039/c5tx00029g] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Vitamin E has the potential to ameliorate the neurotoxicity of Al2O3-nanoparticles that induce neurodegeneration related phenotypes inC. elegans.
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Affiliation(s)
- Xiaoming Yu
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education
- Medical School of Southeast University
- Nanjing 210009
- China
| | - Xiangmin Guan
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education
- Medical School of Southeast University
- Nanjing 210009
- China
| | - Qiuli Wu
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education
- Medical School of Southeast University
- Nanjing 210009
- China
| | - Yunli Zhao
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education
- Medical School of Southeast University
- Nanjing 210009
- China
| | - Dayong Wang
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education
- Medical School of Southeast University
- Nanjing 210009
- China
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41
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Zhao Y, Wu Q, Wang D. A microRNAs–mRNAs network involved in the control of graphene oxide toxicity in Caenorhabditis elegans. RSC Adv 2015. [DOI: 10.1039/c5ra16142h] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A microRNAs–mRNAs network involved in the control of graphene oxide toxicity was raised in nematodes.
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Affiliation(s)
- Yunli Zhao
- Medical School
- Southeast University
- Nanjing 210009
- China
| | - Qiuli Wu
- Medical School
- Southeast University
- Nanjing 210009
- China
| | - Dayong Wang
- Medical School
- Southeast University
- Nanjing 210009
- China
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42
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Yang R, Zhao Y, Yu X, Lin Z, Xi Z, Rui Q, Wang D. Insulin signaling regulates the toxicity of traffic-related PM2.5 on intestinal development and function in nematode Caenorhabditis elegans. Toxicol Res (Camb) 2015. [DOI: 10.1039/c4tx00131a] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Insulin signaling pathway may act as an important molecular basis for the toxicity of traffic-related PM2.5 in Caenorhabditis elegans, a non-mammalian toxicological model.
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Affiliation(s)
- Ruilong Yang
- College of Life Sciences
- Nanjing Agricultural University
- Nanjing 210095
- China
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education
| | - Yunli Zhao
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education
- Medical School of Southeast University
- Nanjing 210009
- China
| | - Xiaoming Yu
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education
- Medical School of Southeast University
- Nanjing 210009
- China
| | - Zhiqing Lin
- Institute of Health and Environmental Medicine
- Key Laboratory of Risk Assessment and Control Technology for Environmental & Food Safety
- Tianjin 300050
- China
| | - Zhuge Xi
- Institute of Health and Environmental Medicine
- Key Laboratory of Risk Assessment and Control Technology for Environmental & Food Safety
- Tianjin 300050
- China
| | - Qi Rui
- College of Life Sciences
- Nanjing Agricultural University
- Nanjing 210095
- China
| | - Dayong Wang
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education
- Medical School of Southeast University
- Nanjing 210009
- China
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43
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Yang J, Zhao Y, Wang Y, Wang H, Wang D. Toxicity evaluation and translocation of carboxyl functionalized graphene in Caenorhabditis elegans. Toxicol Res (Camb) 2015. [DOI: 10.1039/c5tx00137d] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
G-COOH in the range of mg L−1 did not cause toxic effects on both the exposed nematodes and their progeny.
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Affiliation(s)
- Junnian Yang
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education
- Medical School of Southeast University
- Nanjing 210009
- China
- College of Life Sciences and Engineering
| | - Yunli Zhao
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education
- Medical School of Southeast University
- Nanjing 210009
- China
| | - Yanwen Wang
- Institute of Nanochemistry and Nanobiology
- Shanghai University
- Shanghai 200444
- China
| | - Haifang Wang
- Institute of Nanochemistry and Nanobiology
- Shanghai University
- Shanghai 200444
- China
| | - Dayong Wang
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education
- Medical School of Southeast University
- Nanjing 210009
- China
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44
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Zhao Y, Wang X, Wu Q, Li Y, Tang M, Wang D. Quantum dots exposure alters both development and function of D-type GABAergic motor neurons in nematode Caenorhabditis elegans. Toxicol Res (Camb) 2015. [DOI: 10.1039/c4tx00207e] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Both translocation into targeted neurons and developmental and functional alterations in targeted neurons contribute to CdTe QDs neurotoxicity.
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Affiliation(s)
- Yunli Zhao
- Key Laboratory of Developmental Genes and Human Diseases in Ministry of Education
- Medical School of Southeast University
- Nanjing 210009
- China
| | - Xiong Wang
- Key Laboratory of Developmental Genes and Human Diseases in Ministry of Education
- Medical School of Southeast University
- Nanjing 210009
- China
| | - Qiuli Wu
- Key Laboratory of Developmental Genes and Human Diseases in Ministry of Education
- Medical School of Southeast University
- Nanjing 210009
- China
| | - Yiping Li
- Key Laboratory of Developmental Genes and Human Diseases in Ministry of Education
- Medical School of Southeast University
- Nanjing 210009
- China
| | - Meng Tang
- School of Public Health
- Southeast University
- Nanjing 210009
- China
| | - Dayong Wang
- Key Laboratory of Developmental Genes and Human Diseases in Ministry of Education
- Medical School of Southeast University
- Nanjing 210009
- China
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45
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Liu Z, Zhou X, Wu Q, Zhao Y, Wang D. Crucial role of intestinal barrier in the formation of transgenerational toxicity in quantum dot exposed nematodes Caenorhabditis elegans. RSC Adv 2015. [DOI: 10.1039/c5ra16805h] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
CdTe QDs caused the formation of transgenerational toxicity in nematodes. The intestinal barrier may play a crucial role in combatting the transgenerational toxicity of CdTe QDs.
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Affiliation(s)
- Zhifei Liu
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education
- Medical School
- Southeast University
- Nanjing 210009
- China
| | - Xuefeng Zhou
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education
- Medical School
- Southeast University
- Nanjing 210009
- China
| | - Qiuli Wu
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education
- Medical School
- Southeast University
- Nanjing 210009
- China
| | - Yunli Zhao
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education
- Medical School
- Southeast University
- Nanjing 210009
- China
| | - Dayong Wang
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education
- Medical School
- Southeast University
- Nanjing 210009
- China
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46
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Shu C, Yu X, Wu Q, Zhuang Z, Zhang W, Wang D. Pretreatment with paeonol prevents the adverse effects and alters the translocation of multi-walled carbon nanotubes in nematode Caenorhabditis elegans. RSC Adv 2015. [DOI: 10.1039/c4ra14377a] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Pretreatment with paeonol alters toxicity and translocation of MWCNTs in nematodes.
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Affiliation(s)
- Chengjie Shu
- College of Life Sciences
- Nanjing Normal University
- Nanjing 210046
- China
- Nanjing Institute for Comprehensive Utilization of Wild Plants
| | - Xiaoming Yu
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education
- Medical School of Southeast University
- Nanjing 210009
- China
| | - Qiuli Wu
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education
- Medical School of Southeast University
- Nanjing 210009
- China
| | - Ziheng Zhuang
- School of Pharmaceutical Engineering and Life Sciences
- Changzhou University
- Changzhou 213164
- China
| | - Weiming Zhang
- College of Life Sciences
- Nanjing Normal University
- Nanjing 210046
- China
- Nanjing Institute for Comprehensive Utilization of Wild Plants
| | - Dayong Wang
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education
- Medical School of Southeast University
- Nanjing 210009
- China
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47
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Wu Q, Zhao Y, Li Y, Wang D. Molecular signals regulating translocation and toxicity of graphene oxide in the nematode Caenorhabditis elegans. NANOSCALE 2014; 6:11204-11212. [PMID: 25124895 DOI: 10.1039/c4nr02688h] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Both in vitro and in vivo studies have demonstrated the toxic effects of graphene oxide (GO). However, the molecular basis for the translocation and toxicity of GO is still largely unclear. In the present study, we employed an in vivo Caenorhabditis elegans assay system to identify molecular signals involved in the control of the translocation and toxicity of GO. We identified 7 genes whose mutations altered both the translocation and toxicity of GO. Mutations of the hsp-16.48, gas-1, sod-2, sod-3, and aak-2 genes caused greater GO translocation into the body and toxic effects on both primary and secondary targeted organs compared with wild type; however, mutations of the isp-1 and clk-1 genes resulted in significantly decreased GO translocation into the body and toxicity on both primary and secondary targeted organs compared with wild-type. Moreover, mutations of the hsp-16.48, gas-1, sod-2, sod-3, and aak-2 genes caused increased intestinal permeability and prolonged mean defecation cycle length in GO-exposed nematodes, whereas mutations of the isp-1 and clk-1 genes resulted in decreased intestinal permeability in GO-exposed nematodes. Therefore, for the underlying mechanism, we hypothesize that both intestinal permeability and defecation behavior may have crucial roles in controlling the functions of the identified molecular signals. The molecular signals may further contribute to the control of transgenerational toxic effects of GO. Our results provide an important insight into understanding the molecular basis for the in vivo translocation and toxicity of GO.
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Affiliation(s)
- Qiuli Wu
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School of Southeast University, Nanjing 210009, China.
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48
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Zhao Y, Wang X, Wu Q, Li Y, Wang D. Translocation and neurotoxicity of CdTe quantum dots in RMEs motor neurons in nematode Caenorhabditis elegans. JOURNAL OF HAZARDOUS MATERIALS 2014; 283:480-489. [PMID: 25464286 DOI: 10.1016/j.jhazmat.2014.09.063] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2014] [Revised: 09/17/2014] [Accepted: 09/19/2014] [Indexed: 06/04/2023]
Abstract
We employed Caenorhabditis elegans assay system to investigate in vivo neurotoxicity of CdTe quantum dots (QDs) on RMEs motor neurons, which are involved in controlling foraging behavior, and the underlying mechanism of such neurotoxicity. After prolonged exposure to 0.1-1 μg/L of CdTe QDs, abnormal foraging behavior and deficits in development of RMEs motor neurons were observed. The observed neurotoxicity from CdTe QDs on RMEs motor neurons might be not due to released Cd(2+). Overexpression of genes encoding Mn-SODs or unc-30 gene controlling cell identity of RMEs neurons prevented neurotoxic effects of CdTe QDs on RMEs motor neurons, suggesting the crucial roles of oxidative stress and cell identity in regulating CdTe QDs neurotoxicity. In nematodes, CdTe QDs could be translocated through intestinal barrier and be deposited in RMEs motor neurons. In contrast, CdTe@ZnS QDs could not be translocated into RMEs motor neurons and therefore, could only moderately accumulated in intestinal cells, suggesting that ZnS coating might reduce neurotoxicity of CdTe QDs on RMEs motor neurons. Therefore, the combinational effects of oxidative stress, cell identity, and bioavailability may contribute greatly to the mechanism of CdTe QDs neurotoxicity on RMEs motor neurons. Our results provide insights into understanding the potential risks of CdTe QDs on the development and function of nervous systems in animals.
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Affiliation(s)
- Yunli Zhao
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School of Southeast University, Nanjing 210009, China
| | - Xiong Wang
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School of Southeast University, Nanjing 210009, China
| | - Qiuli Wu
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School of Southeast University, Nanjing 210009, China
| | - Yiping Li
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School of Southeast University, Nanjing 210009, China
| | - Dayong Wang
- Key Laboratory of Environmental Medicine Engineering in Ministry of Education, Medical School of Southeast University, Nanjing 210009, China.
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49
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microRNAs control of in vivo toxicity from graphene oxide in Caenorhabditis elegans. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2014; 10:1401-10. [DOI: 10.1016/j.nano.2014.04.005] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2014] [Revised: 04/09/2014] [Accepted: 04/14/2014] [Indexed: 11/18/2022]
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50
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Wu Q, Zhao Y, Li Y, Wang D. Susceptible genes regulate the adverse effects of TiO2-NPs at predicted environmental relevant concentrations on nematode Caenorhabditis elegans. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2014; 10:1263-71. [DOI: 10.1016/j.nano.2014.03.010] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2013] [Revised: 03/07/2014] [Accepted: 03/12/2014] [Indexed: 01/08/2023]
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