1
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Mou Y, Sun Y, Liu G, Zhang N, He Z, Gu S. Screening of differentially expressed RNAs and identifying a ceRNA axis during cadmium-induced oxidative damage in pancreatic β cells. Sci Rep 2024; 14:18962. [PMID: 39152192 PMCID: PMC11329516 DOI: 10.1038/s41598-024-69937-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Accepted: 08/12/2024] [Indexed: 08/19/2024] Open
Abstract
Cadmium, a common metal pollutant, has been demonstrated to induce type 2 diabetes by disrupting pancreatic β cells function. In this study, transcriptome microarray was utilized to identify differential gene expression in oxidative damage to pancreatic β cells following cadmium exposure. The results indicated that a series of mRNAs, LncRNAs, and miRNAs were altered. Of the differentially expressed miRNAs, miR-29a-3p exhibited the most pronounced alteration, with an 11.62-fold increase relative to the control group. Following this, the target gene of miR-29a-3p was identified as Col3a1 through three databases (miRDB, miRTarbase and Tarbase), which demonstrated a decrease across the transcriptome microarray. The upstream target gene of miR-29a-3p was identified as NONMMUT036805, with decreased expression observed in the microarray. Finally, the expression trend of NONMMUT036805/miR-29a-3p/Col3a1 was reversed following NAC pretreatment. This was accompanied by a reduction in oxidative damage indicators, MDA/ROS/GSH-Px appeared to be negatively affected to varying degrees. In conclusion, this study has demonstrated that multiple RNAs are altered during cadmium exposure-induced oxidative damage in pancreatic β cells. The NONMMUT036805/miR-29a-3p/Col3a1 axis has been shown to be involved in this process, which provides a foundation for the identification of potential targets for cadmium toxicity intervention.
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Affiliation(s)
- Yahao Mou
- Institute of Preventive Medicine, School of Public Health, Dali University, No. 22, Wanhua Road, Dali, Yunnan, 671000, People's Republic of China
- Sichuan Tianfu New Area Public Health Center, Zhengxing Street, Chengdu, Sichuan, 610218, People's Republic of China
| | - Yifei Sun
- Institute of Preventive Medicine, School of Public Health, Dali University, No. 22, Wanhua Road, Dali, Yunnan, 671000, People's Republic of China
| | - Guofen Liu
- Institute of Preventive Medicine, School of Public Health, Dali University, No. 22, Wanhua Road, Dali, Yunnan, 671000, People's Republic of China
| | - Nan Zhang
- Institute of Preventive Medicine, School of Public Health, Dali University, No. 22, Wanhua Road, Dali, Yunnan, 671000, People's Republic of China
| | - Zuoshun He
- Institute of Preventive Medicine, School of Public Health, Dali University, No. 22, Wanhua Road, Dali, Yunnan, 671000, People's Republic of China
| | - Shiyan Gu
- Institute of Preventive Medicine, School of Public Health, Dali University, No. 22, Wanhua Road, Dali, Yunnan, 671000, People's Republic of China.
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2
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Li Y, Pan Y, Yin Y, Huang R. Integrating Transcriptomics and Proteomics to Characterize the Intestinal Responses to Cadmium Exposure Using a Piglet Model. Int J Mol Sci 2024; 25:6474. [PMID: 38928180 PMCID: PMC11203886 DOI: 10.3390/ijms25126474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 05/18/2024] [Accepted: 05/30/2024] [Indexed: 06/28/2024] Open
Abstract
Cadmium (Cd) is a heavy metal element with a wide range of hazards and severe biotoxicity. Since Cd can be easily accumulated in the edible parts of plants, the exposure of humans to Cd is mainly through the intake of Cd-contaminated food. However, the intestinal responses to Cd exposure are not completely characterized. Herein, we simulated laboratory and environmental Cd exposure by feeding the piglets with CdCl2-added rice and Cd-contaminated rice (Cdcr) contained diet, as piglets show anatomical and physiological similarities to humans. Subsequent analysis of the metal element concentrations showed that exposure to the two types of Cd significantly increased Cd levels in piglets. After verifying the expression of major Cd transporters by Western blots, multi-omics further expanded the possible transporters of Cd and found Cd exposure causes wide alterations in the metabolism of piglets. Of significance, CdCl2 and Cdcr exhibited different body distribution and metabolic rewiring, and Cdcr had stronger carcinogenic and diabetes-inducing potential. Together, our results indicate that CdCl2 had a significant difference compared with Cdcr, which has important implications for a more intense study of Cd toxicity.
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Affiliation(s)
- Yikun Li
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China;
- Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
| | - Yiling Pan
- Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
| | - Yulong Yin
- Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
| | - Ruilin Huang
- Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
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3
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Li X, Li Z, Meng YQ, Qiao H, Zhai KR, Li ZQ, Wei SL, Li B. Melittin kills A549 cells by targeting mitochondria and blocking mitophagy flux. Redox Rep 2023; 28:2284517. [PMID: 38041592 PMCID: PMC11001274 DOI: 10.1080/13510002.2023.2284517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2023] Open
Abstract
Melittin, a naturally occurring polypeptide found in bee venom, has been recognized for its potential anti-tumor effects, particularly in the context of lung cancer. Our previous study focused on its impact on human lung adenocarcinoma cells A549, revealing that melittin induces intracellular reactive oxygen species (ROS) burst and oxidative damage, resulting in cell death. Considering the significant role of mitochondria in maintaining intracellular redox levels and ROS, we further examined the involvement of mitochondrial damage in melittin-induced apoptosis in lung cancer cells. Our findings demonstrated that melittin caused changes in mitochondrial membrane potential (MMP), triggered mitochondrial ROS burst (Figure 1), and activated the mitochondria-related apoptosis pathway Bax/Bcl-2 by directly targeting mitochondria in A549 cells (Figure 2). Further, we infected A549 cells using a lentivirus that can express melittin-Myc and confirmed that melittin can directly target binding to mitochondria, causing the biological effects described above (Figure 2). Notably, melittin induced mitochondrial damage while inhibiting autophagy, resulting in abnormal degradation of damaged mitochondria (Figure 5). To summarize, our study unveils that melittin targets mitochondria, causing mitochondrial damage, and inhibits the autophagy-lysosomal degradation pathway. This process triggers mitoROS burst and ultimately activates the mitochondria-associated Bax/Bcl-2 apoptotic signaling pathways in A549 cells.
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Affiliation(s)
- Xuan Li
- Department of Thoracic Surgery, Lanzhou University Second Hospital, Lanzhou University Second Clinical Medical College, Lanzhou, People’s Republic of China
| | - Zheng Li
- Department of Thoracic Surgery, Lanzhou University Second Hospital, Lanzhou University Second Clinical Medical College, Lanzhou, People’s Republic of China
| | - Yu-Qi Meng
- Department of Thoracic Surgery, Lanzhou University Second Hospital, Lanzhou University Second Clinical Medical College, Lanzhou, People’s Republic of China
| | - Hui Qiao
- Department of Oncology, The First Hospital of Lanzhou University, Lanzhou, People’s Republic of China
| | - Ke-Rong Zhai
- Department of Thoracic Surgery, Lanzhou University Second Hospital, Lanzhou University Second Clinical Medical College, Lanzhou, People’s Republic of China
| | - Zhen-Qing Li
- Department of Thoracic Surgery, Lanzhou University Second Hospital, Lanzhou University Second Clinical Medical College, Lanzhou, People’s Republic of China
| | - Shi-Lin Wei
- Department of Thoracic Surgery, Lanzhou University Second Hospital, Lanzhou University Second Clinical Medical College, Lanzhou, People’s Republic of China
| | - Bin Li
- Department of Thoracic Surgery, Lanzhou University Second Hospital, Lanzhou University Second Clinical Medical College, Lanzhou, People’s Republic of China
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4
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Zhang R, Walker L, Wen X, Doherty C, Gorczyca L, Buckley B, Barrett ES, Aleksunes LM. Placental BCRP transporter reduces cadmium accumulation and toxicity in immortalized human trophoblasts. Reprod Toxicol 2023; 121:108466. [PMID: 37660740 PMCID: PMC10591833 DOI: 10.1016/j.reprotox.2023.108466] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 08/20/2023] [Accepted: 08/28/2023] [Indexed: 09/05/2023]
Abstract
Cadmium (Cd) is a ubiquitous environmental metal detectable in most pregnant women. Animal and human studies demonstrate that in utero exposure to Cd reduces birth weight and impairs perinatal growth due to placental toxicity. BCRP is a prominent transporter that can efflux xenobiotics from the placenta. This study sought to investigate Cd transport and toxicity in cultured human BeWo trophoblasts with reduced expression and function of the placental barrier transporter BCRP. Knockdown (KD) of BCRP protein expression and function in BeWo trophoblasts increased the intracellular accumulation of Cd by 100% following treatment with 1 μM CdCl2. No change in the expression of Cd uptake transporters was observed between control and BCRP-KD cells. Reduced BCRP expression impaired viability of BeWo cells exposed to CdCl2 for 48 hr (BCRP-KD IC50: 11 μM, control cells IC50: 18 μM). Moreover, BCRP-KD cells were more sensitive to CdCl2-induced cytotoxicity compared to control BeWo cells. CdCl2 treatment strongly induced the expression of the metal-binding protein metallothionein (MT) in both control and BCRP-KD cells, with significantly greater MT upregulation in Cd-treated BCRP-KD cells. These data suggest that the BCRP transporter reduces Cd accumulation in syncytiotrophoblasts, which may be one mechanism to reduce subsequent toxicity to the placenta and developing fetus.
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Affiliation(s)
- Ranran Zhang
- Department of Biostatistics and Epidemiology, Rutgers University, Piscataway, NJ 08854, USA
| | - Lauren Walker
- Department of Pharmacology and Toxicology, Rutgers University, Piscataway, NJ 08854, USA
| | - Xia Wen
- Department of Pharmacology and Toxicology, Rutgers University, Piscataway, NJ 08854, USA; Environmental and Occupational Health Sciences Institute, Rutgers University, Piscataway, NJ 08854, USA
| | - Cathleen Doherty
- Environmental and Occupational Health Sciences Institute, Rutgers University, Piscataway, NJ 08854, USA
| | - Ludwik Gorczyca
- Joint Graduate Program in Toxicology, Rutgers University, Piscataway, NJ 08854, USA
| | - Brian Buckley
- Environmental and Occupational Health Sciences Institute, Rutgers University, Piscataway, NJ 08854, USA
| | - Emily S Barrett
- Department of Biostatistics and Epidemiology, Rutgers University, Piscataway, NJ 08854, USA; Environmental and Occupational Health Sciences Institute, Rutgers University, Piscataway, NJ 08854, USA
| | - Lauren M Aleksunes
- Department of Pharmacology and Toxicology, Rutgers University, Piscataway, NJ 08854, USA; Environmental and Occupational Health Sciences Institute, Rutgers University, Piscataway, NJ 08854, USA.
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5
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Wang L, Guan T, Wang G, Gu J, Wu N, Zhu C, Wang H, Li J. Effects of copper on gill function of juvenile oriental river prawn (Macrobrachium nipponense): Stress and toxic mechanism. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 261:106631. [PMID: 37422926 DOI: 10.1016/j.aquatox.2023.106631] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 07/04/2023] [Accepted: 07/06/2023] [Indexed: 07/11/2023]
Abstract
As an important trace element and the accessory factor of many enzymatic processes, heavy metal copper is essential to aquatic animals. The toxic mechanism of copper on gill function of M. nipponense was clarified for the first time in terms of histopathological analysis, physiology, biochemistry and the expression of important genes. The results obtained by present in present research showed that heavy metal copper could affect normal respiratory and metabolic activities in M. nipponense. Copper stress could cause damage to the mitochondrial membrane of gill cells in M. nipponense, and the activity of mitochondrial respiratory chain complex could be inhibited by copper. Copper could affect normal electron transport and mitochondrial oxidative phosphorylation, resulting in the inhibition of energy production. High concentrations of copper could disrupt intracellular ion balance and induce cytotoxicity. The oxidative stress could be induced by copper, leading to excessive ROS. Copper could reduce the mitochondrial membrane potential, lead to the leakage of apoptotic factors, and induce apoptosis. Copper could damage structure of gill, affect normal respiration of gill. This study provided fundamental data for exploring impacts of copper on gill function in aquatic organisms and potential mechanisms of copper toxicity.
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Affiliation(s)
- Long Wang
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai 201306, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China; Jiangsu Engineering Center for Breeding of Special Aquatic Organisms, Huaiyin Normal University, Huai'an 223300, Jiangsu Province, China
| | - Tianyu Guan
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai 201306, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China; Jiangsu Engineering Center for Breeding of Special Aquatic Organisms, Huaiyin Normal University, Huai'an 223300, Jiangsu Province, China
| | - Guiling Wang
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai 201306, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China
| | - Jieyi Gu
- Jiangsu Engineering Center for Breeding of Special Aquatic Organisms, Huaiyin Normal University, Huai'an 223300, Jiangsu Province, China
| | - Nan Wu
- Jiangsu Engineering Center for Breeding of Special Aquatic Organisms, Huaiyin Normal University, Huai'an 223300, Jiangsu Province, China
| | - Chuankun Zhu
- Jiangsu Engineering Center for Breeding of Special Aquatic Organisms, Huaiyin Normal University, Huai'an 223300, Jiangsu Province, China
| | - Hui Wang
- Jiangsu Engineering Center for Breeding of Special Aquatic Organisms, Huaiyin Normal University, Huai'an 223300, Jiangsu Province, China.
| | - Jiale Li
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture, Shanghai Ocean University, Shanghai 201306, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China
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6
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Ma JY, Li WY, Yang ZY, Su JZ, Li L, Deng YR, Tuo YF, Niu YY, Xiang P. The spatial distribution, health risk, and cytotoxicity of metal(loid)s in contaminated field soils: The role of Cd in human gastric cells damage. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 878:162942. [PMID: 36940749 DOI: 10.1016/j.scitotenv.2023.162942] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 03/10/2023] [Accepted: 03/14/2023] [Indexed: 05/13/2023]
Abstract
The spatial distribution and pollution level of heavy metal(loid)s in soil (0-6 m) from a typical industrial region in Jiangmen City, Southeast China was investigated. Their bioaccessibility, health risk, and human gastric cytotoxicity in topsoil were also evaluated using an in vitro digestion/human cell model. The average concentrations of Cd (87.52 mg/kg), Co (106.9 mg/kg), and Ni (1007 mg/kg) exceeded the risk screening values. The distribution profiles of metal(loid)s showed a downward migration trend to reach a depth of 2 m. The highest contamination was found in topsoil (0-0.5 m), with the concentrations of As, Cd, Co, and Ni being 46.98, 348.28, 317.44, and 2395.60 mg/kg, respectively, while Cd showed the highest bioaccessibility in the gastric phase (72.80 %), followed by Co (21.08 %), Ni (18.27 %), and As (5.26 %) and unacceptable carcinogenic risk. Moreover, the gastric digesta of topsoil suppressed the cell viability and triggered cell apoptosis, evidenced by disruption of mitochondrial transmembrane potential and increase of Cytochrome c (Cyt c) and Caspases 3/9 mRNA expression. Bioaccessible Cd in topsoil was responsible for those adverse effects. Our data suggest the importance to reduce Cd in the soil to decrease its adverse impacts on the human stomach.
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Affiliation(s)
- Jiao-Yang Ma
- Yunnan Province Innovative Research Team of Environmental pollution, Food Safety, and Human Health, Institute of Environmental Remediation and Human Health, School of Ecology and Environment, Southwest Forestry University, Kunming 650224, China
| | - Wei-Yu Li
- Yunnan Province Innovative Research Team of Environmental pollution, Food Safety, and Human Health, Institute of Environmental Remediation and Human Health, School of Ecology and Environment, Southwest Forestry University, Kunming 650224, China; Guangdong Key Laboratory of Contaminated Environmental Management and Remediation, Guangdong Provincial Academy of Environmental Science, Guangzhou 510000, China
| | - Zi-Yue Yang
- Yunnan Province Innovative Research Team of Environmental pollution, Food Safety, and Human Health, Institute of Environmental Remediation and Human Health, School of Ecology and Environment, Southwest Forestry University, Kunming 650224, China
| | - Jin-Zhou Su
- Yunnan Province Innovative Research Team of Environmental pollution, Food Safety, and Human Health, Institute of Environmental Remediation and Human Health, School of Ecology and Environment, Southwest Forestry University, Kunming 650224, China
| | - Li Li
- Precious Metal Testing Co. LTD of Yunnan Gold Mining Group, Kunming 650215, China
| | - Yi-Rong Deng
- Guangdong Key Laboratory of Contaminated Environmental Management and Remediation, Guangdong Provincial Academy of Environmental Science, Guangzhou 510000, China
| | - Yun-Fei Tuo
- Yunnan Province Innovative Research Team of Environmental pollution, Food Safety, and Human Health, Institute of Environmental Remediation and Human Health, School of Ecology and Environment, Southwest Forestry University, Kunming 650224, China
| | - You-Ya Niu
- School of Basic Medical Sciences, Hunan University of Medicine, Huaihua 418000, China.
| | - Ping Xiang
- Yunnan Province Innovative Research Team of Environmental pollution, Food Safety, and Human Health, Institute of Environmental Remediation and Human Health, School of Ecology and Environment, Southwest Forestry University, Kunming 650224, China.
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7
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Pappalardo C, Cosci I, Moro G, Stortini AM, Sandon A, De Angelis C, Galdiero G, Trifuoggi M, Pivonello R, Pedrucci F, Di Nisio A, Foresta C, Ferlin A, De Toni L. Seminal cadmium affects human sperm motility through stable binding to the cell membrane. Front Cell Dev Biol 2023; 11:1134304. [PMID: 37274747 PMCID: PMC10232869 DOI: 10.3389/fcell.2023.1134304] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 03/23/2023] [Indexed: 06/06/2023] Open
Abstract
Environmental pollutants are claimed to be major factors involved in the progressive decline of the fertility rate worldwide. Exposure to the heavy metal Cadmium (Cd) has been associated with reproductive toxicity due to its ionic mimicry. However, the possible direct accumulation of Cd in human sperm cells has been poorly investigated. In this study, we aimed to clarify the possible direct effect of Cd exposure on sperm function through the analysis of its cell accumulation. Semen samples from 30 male subjects residing in high environmental impact areas and adhering to the "Exposoma e Plurifocalità nella Prevenzione Oncologica" campaign for testis cancer prevention were compared with semen samples from 15 males residing in low exposure areas. Semen levels and cell Cd content were quantified by inductively coupled plasma (ICP) spectroscopy. Cell Cd distribution was assessed by scanning electron microscopy coupled with energy dispersive spectroscopy (SEM-EDS). The impact of Cd on sperm function was evaluated by the in vitro exposure to the heavy metal, whilst possible scavenging approaches/agents were assessed. In addition to higher values of semen Cd, exposed subjects showed a reduction in total motile sperm fraction compared to not-exposed controls (59.6% ± 13.6% vs. 66.3% ± 7.3%, p = 0.037). Semen Cd levels were also significantly correlated with SEM-EDS signals of Cd detected on the head and neck of sperm (respectively p = 0.738, p < 0.001 and ρ = 0.465, p < 0.001). A total of 2 h of in vitro exposure to 0.5 μM Cd was associated with a significant reduction of sperm progressive motility. Scavenging approaches with either hypo-osmotic swelling or 10 μM reduced glutathione were ineffective in blunting cell Cd and restoring motility. The reduction of exposure levels appears to be the main approach to reducing the reproductive issues associated with Cd.
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Affiliation(s)
- Claudia Pappalardo
- Department of Medicine, Unit of Andrology and Reproductive Medicine, University of Padova, Padova, Italy
| | - Ilaria Cosci
- Veneto Institute of Oncology IOV—IRCCS, Padova, Italy
| | - Giulia Moro
- Department of Molecular Sciences and Nanosystems, Ca’ Foscari University of Venezia, Venezia, Italy
| | - Angela Maria Stortini
- Department of Molecular Sciences and Nanosystems, Ca’ Foscari University of Venezia, Venezia, Italy
| | - Annalisa Sandon
- Department of Civil, Environmental and Architectural Engineering—ICEA—Laboratories, University of Padova, Padova, Italy
| | - Cristina De Angelis
- Dipartimento di Medicina Clinica e Chirurgia, Sezione di Endocrinologia, Unità di Andrologia e Medicina della Riproduzione e della Sessualità Maschile e Femminile (FERTISEXCARES), Università Federico II di Napoli, Naples, Italy
| | - Giacomo Galdiero
- Dipartimento di Medicina Clinica e Chirurgia, Sezione di Endocrinologia, Unità di Andrologia e Medicina della Riproduzione e della Sessualità Maschile e Femminile (FERTISEXCARES), Università Federico II di Napoli, Naples, Italy
| | - Marco Trifuoggi
- Dipartimento di Scienze Chimiche, Università Federico II di Napoli, Naples, Italy
| | - Rosario Pivonello
- Dipartimento di Medicina Clinica e Chirurgia, Sezione di Endocrinologia, Unità di Andrologia e Medicina della Riproduzione e della Sessualità Maschile e Femminile (FERTISEXCARES), Università Federico II di Napoli, Naples, Italy
- Staff of Unesco Chair for Health Education and Sustainable Development, Federico II University, Naples, Italy
| | - Federica Pedrucci
- Department of Medicine, Unit of Andrology and Reproductive Medicine, University of Padova, Padova, Italy
| | - Andrea Di Nisio
- Department of Medicine, Unit of Andrology and Reproductive Medicine, University of Padova, Padova, Italy
| | - Carlo Foresta
- Department of Medicine, Unit of Andrology and Reproductive Medicine, University of Padova, Padova, Italy
| | - Alberto Ferlin
- Department of Medicine, Unit of Andrology and Reproductive Medicine, University of Padova, Padova, Italy
| | - Luca De Toni
- Department of Medicine, Unit of Andrology and Reproductive Medicine, University of Padova, Padova, Italy
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Bolten JS, Mancuso RV, Roos NJ, Mayr A, Puligilla RD, Kraus L, Odermatt A, Fricker G, Huwyler J. Nephrotoxicity of iopamidol is associated with mitochondrial impairment in human cell and teleost models. Toxicol Appl Pharmacol 2023; 466:116493. [PMID: 36977437 DOI: 10.1016/j.taap.2023.116493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 03/23/2023] [Accepted: 03/24/2023] [Indexed: 03/29/2023]
Abstract
Iopamidol is a nonionic, low-osmolar iodinated contrast agent used for angiography. Its clinical use is associated with renal dysfunction. Patients suffering from preexisting kidney disease have an increased risk of renal failure upon iopamidol administration. Studies in animals confirmed renal toxicity, but the involved mechanisms remain unclear. Therefore, the aim of the present study was to use human embryonic kidney cells (HEK293T) as a general cell model of mitochondrial damage, as well as, zebrafish larvae, and isolated proximal tubules of killifish to investigate factors promoting renal tubular toxicity of iopamidol with a focus on mitochondrial damage. Results from in vitro HEK293T cell-based assays indicate that iopamidol affects mitochondrial function Treatment with iopamidol induces ATP depletion, reduces the mitochondrial membrane potential, and elevates mitochondrial superoxide and reactive oxygen species accumulation. Similar results were obtained with gentamicin sulfate and cadmium chloride, two well-known model compounds associated with renal tubular toxicity. Confocal microscopy confirms changes in mitochondrial morphology, such as mitochondrial fission. Importantly, these results were confirmed in proximal renal tubular epithelial cells using ex vivo and in vivo teleost models. In conclusion, this study provides evidence for iopamidol-induced mitochondrial damage in proximal renal epithelial cells. Teleost models allow studying proximal tubular toxicity with translational relevance for humans.
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Affiliation(s)
- Jan Stephan Bolten
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Technology, University of Basel, 4056, Switzerland
| | - Riccardo Vincenzo Mancuso
- Department of Pharmaceutical Sciences, Division of Clinical Pharmacology & Toxicology, University of Basel, 4031, Switzerland; Department of Pharmaceutical Sciences, Division of Molecular Pharmacy, University of Basel, 4056, Switzerland
| | - Noëmi Johanna Roos
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Technology, University of Basel, 4056, Switzerland
| | - Aline Mayr
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Technology, University of Basel, 4056, Switzerland
| | - Ramya Deepthi Puligilla
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Technology, University of Basel, 4056, Switzerland
| | - Lisa Kraus
- Institute of Pharmacy and Molecular Biotechnology, University of Heidelberg, 69120, Germany
| | - Alex Odermatt
- Department of Pharmaceutical Sciences, Division of Molecular and Systems Toxicology, University of Basel, 4056, Switzerland
| | - Gert Fricker
- Institute of Pharmacy and Molecular Biotechnology, University of Heidelberg, 69120, Germany; Mount Desert Island Biological Laboratory, Salsbury Cove, ME 04672, USA
| | - Jörg Huwyler
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Technology, University of Basel, 4056, Switzerland; Mount Desert Island Biological Laboratory, Salsbury Cove, ME 04672, USA.
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9
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Zinc Chloride Can Mitigate the Alterations in Metallothionein and Some Apoptotic Proteins Induced by Cadmium Chloride in Mice Hepatocytes: A Histological and Immunohistochemical Study. J Toxicol 2023; 2023:2200539. [PMID: 36793583 PMCID: PMC9925264 DOI: 10.1155/2023/2200539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Revised: 01/09/2023] [Accepted: 01/20/2023] [Indexed: 02/08/2023] Open
Abstract
The heavy metal cadmium is extremely harmful to both humans and animals. Zinc supplementation protects the biological system and reduces cadmium-induced toxicity. This study aimed to determine whether zinc chloride (ZnCl2) could protect male mice with the damaged liver induced by cadmium chloride (CdCl2). The protective role of zinc chloride and expression of the metallothionein (MT), Ki-67, and Bcl-2 apoptotic proteins in hepatocytes were studied after subchronic exposure of mice to cadmium chloride for 21 days. Thirty male mice were randomly categorized into 6 groups (5 mice/group) as follows: a control group that did not receive any treatment, a group given ZnCl2 at 10 mg/kg alone, and two groups received ZnCl2 (10 mg/kg) in combination with CdCl2 at two concentrations (1.5 and 3 mg/kg), while the last two groups received CdCl2 alone at 1.5 and 3 mg/kg, respectively. Immunohistochemical examination revealed a decrease in Ki-67 expression in Kupffer and endothelial cells, which reflected cell proliferation downregulation accompanied by MT increased expression. However, the Bcl-2 was ameliorated and reduced to demonstrate an enhanced rate of necrosis rather than apoptosis. Furthermore, histopathological results showed significant alteration such as hepatocytes with a pyknotic nucleus, infiltration of inflammatory cells around the central vein, and the presence of many binucleated hepatocytes. Zinc chloride treatment resulted in histological and morphological improvements that were average in the expression of apoptosis proteins modifications induced by cadmium. Our findings revealed that the positive effects of zinc might be linked to the high metallothionein expression and enhanced cell proliferation. Furthermore, at low-dose exposure, cadmium-induced damage to cells could be more closely related to necrosis rather than apoptosis.
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10
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Johns CE, Gattu M, Camilli S, Desaraju A, Kolliputi N, Galam L. The Cd/Zn Axis: Emerging Concepts in Cellular Fate and Cytotoxicity. Biomolecules 2023; 13:biom13020316. [PMID: 36830685 PMCID: PMC9953193 DOI: 10.3390/biom13020316] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 02/03/2023] [Accepted: 02/04/2023] [Indexed: 02/10/2023] Open
Abstract
Cadmium (Cd) is a toxic and carcinogenic substance that is present in the natural environment. The underlying biomolecular mechanisms of Cd toxicity are not completely understood, and it continues to be a significant research target due to its impact on public health. The primary routes of exposure are through ingestion of contaminated food and water and inhalation. Cd's long biological half-life of 10-30 years allows it to accumulate in the body, leading to organ dysfunction notably in the kidney, liver, bone, and lungs. Cd has similar biochemical characteristics to Zinc (Zn). It shares the import transporters, ZIP8 and ZIP14, to enter the cells. This competitive behavior can be observed in multiple instances throughout the progression of Cd toxicity. Future studies on the biochemical interactions of Cd and Zn will elucidate the potential protective effects of Zn supplementation in reducing the effects of Cd toxicity. In addition, research can be focused on discovering key proteins and effective pathways for Cd elimination that confer fewer adverse effects than current antioxidant therapies.
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Affiliation(s)
| | | | | | | | | | - Lakshmi Galam
- Correspondence: ; Tel.: +1-813-974-5419; Fax: +1-813-974-8575
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