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Barnes DA, Firman JW, Belfield SJ, Cronin MTD, Vinken M, Janssen MJ, Masereeuw R. Development of an adverse outcome pathway network for nephrotoxicity. Arch Toxicol 2024; 98:929-942. [PMID: 38197913 PMCID: PMC10861692 DOI: 10.1007/s00204-023-03637-7] [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: 08/07/2023] [Accepted: 11/13/2023] [Indexed: 01/11/2024]
Abstract
Adverse outcome pathways (AOPs) were introduced in modern toxicology to provide evidence-based representations of the events and processes involved in the progression of toxicological effects across varying levels of the biological organisation to better facilitate the safety assessment of chemicals. AOPs offer an opportunity to address knowledge gaps and help to identify novel therapeutic targets. They also aid in the selection and development of existing and new in vitro and in silico test methods for hazard identification and risk assessment of chemical compounds. However, many toxicological processes are too intricate to be captured in a single, linear AOP. As a result, AOP networks have been developed to aid in the comprehension and placement of associated events underlying the emergence of related forms of toxicity-where complex exposure scenarios and interactions may influence the ultimate adverse outcome. This study utilised established criteria to develop an AOP network that connects thirteen individual AOPs associated with nephrotoxicity (as sourced from the AOP-Wiki) to identify several key events (KEs) linked to various adverse outcomes, including kidney failure and chronic kidney disease. Analysis of the modelled AOP network and its topological features determined mitochondrial dysfunction, oxidative stress, and tubular necrosis to be the most connected and central KEs. These KEs can provide a logical foundation for guiding the selection and creation of in vitro assays and in silico tools to substitute for animal-based in vivo experiments in the prediction and assessment of chemical-induced nephrotoxicity in human health.
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Affiliation(s)
- D A Barnes
- Division of Pharmacology, Utrecht University, Utrecht Institute for Pharmaceutical Sciences, Utrecht, The Netherlands
| | - J W Firman
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
| | - S J Belfield
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
| | - M T D Cronin
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
| | - M Vinken
- Department of Pharmaceutical and Pharmacological Sciences, Entity of In Vitro Toxicology and Dermato-Cosmetology, Vrije Universiteit Brussel, Brussels, Belgium
| | - M J Janssen
- Division of Pharmacology, Utrecht University, Utrecht Institute for Pharmaceutical Sciences, Utrecht, The Netherlands
| | - R Masereeuw
- Division of Pharmacology, Utrecht University, Utrecht Institute for Pharmaceutical Sciences, Utrecht, The Netherlands.
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2
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Chen J, Liu C, Chernatynskaya AV, Newby B, Brusko TM, Xu Y, Barra JM, Morgan N, Santarlas C, Reeves WH, Tse HM, Leiding JW, Mathews CE. NADPH Oxidase 2-Derived Reactive Oxygen Species Promote CD8+ T Cell Effector Function. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2024; 212:258-270. [PMID: 38079221 PMCID: PMC10752859 DOI: 10.4049/jimmunol.2200691] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 11/07/2023] [Indexed: 12/30/2023]
Abstract
Oxidants participate in lymphocyte activation and function. We previously demonstrated that eliminating the activity of NADPH oxidase 2 (NOX2) significantly impaired the effectiveness of autoreactive CD8+ CTLs. However, the molecular mechanisms impacting CD8+ T cell function remain unknown. In the present study, we examined the role of NOX2 in both NOD mouse and human CD8+ T cell function. Genetic ablation or chemical inhibition of NOX2 in CD8+ T cells significantly suppressed activation-induced expression of the transcription factor T-bet, the master transcription factor of the Tc1 cell lineage, and T-bet target effector genes such as IFN-γ and granzyme B. Inhibition of NOX2 in both human and mouse CD8+ T cells prevented target cell lysis. We identified that superoxide generated by NOX2 must be converted into hydrogen peroxide to transduce the redox signal in CD8+ T cells. Furthermore, we show that NOX2-generated oxidants deactivate the tumor suppressor complex leading to activation of RheB and subsequently mTOR complex 1. These results indicate that NOX2 plays a nonredundant role in TCR-mediated CD8+ T cell effector function.
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Affiliation(s)
- Jing Chen
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL
| | - Chao Liu
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL
| | - Anna V. Chernatynskaya
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL
| | - Brittney Newby
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL
| | - Todd M. Brusko
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL
| | - Yuan Xu
- Department of Medicine, University of Florida, Gainesville, FL
| | - Jessie M. Barra
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL
| | - Nadine Morgan
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL
| | | | | | - Hubert M. Tse
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL
| | - Jennifer W. Leiding
- Division of Allergy and Immunology, Department of Pediatrics, Johns Hopkins University, Baltimore, MD
- Institute for Clinical and Translational Research, Johns Hopkins All Children’s Hospital, St. Petersburg, FL
| | - Clayton E. Mathews
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL
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3
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Zhou Y, Wei X, Li W, Zhang S, Zhao Y. Comprehensive analysis of mitophagy-related subtypes of breast cancer and the association with immune related characteristics. Heliyon 2023; 9:e23267. [PMID: 38144329 PMCID: PMC10746530 DOI: 10.1016/j.heliyon.2023.e23267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 11/26/2023] [Accepted: 11/29/2023] [Indexed: 12/26/2023] Open
Abstract
Breast cancer (BRCA) is a common neoplasm characterized by high levels of molecular heterogeneity. Previous studies have noted the importance of mitophagy for the progression and prognosis of BRCA. However, little was found in the similarity and difference of mitophagy-related gene expression patterns of BRCA. This study intended to investigate the differences in functional activation, somatic mutation, and immune-related characteristics among different subtypes of BRCA associated with mitophagy. Based on bioinformatics analysis, we systematically examined the heterogeneity of breast cancer concerning mitophagy and observed two distinct subtypes with different tumor microenvironments and prognoses. BRCA samples from TCGA database were divided into two subtypes based on the expression of 29 mitophagy-related genes by ConsensusClusterPlus algorithm. Two mitophagy-related subtypes with marked prognostic discrepancies were significantly correlated with race, intrinsic subtype grouped based on PAM50 subtype purity and BRCA Pathology. The results of GSVA and immune microenvironment analysis showed significant differences in cancer-related and immune-related features between the two subtypes. METABRIC datasets were extracted to validate the immune characteristics scoring and the expression of immune checkpoints between different subtypes based on the medium value of TCGA-Mitophagy score. It is noteworthy that the present study is the first to demonstrate a new classification based on the mitophagy of breast cancer, which comes up with a new perspective for the assessment and prognoses of BRCA.
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Affiliation(s)
- Yaqing Zhou
- Department of Oncology, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Xing Wei
- Department of Gynaecology and Obstetrics, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Weimiao Li
- Department of Oncology, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Shuqun Zhang
- Department of Oncology, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yonglin Zhao
- Department of Oncology, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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4
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Yang Y, Shao R, Tang L, Li L, Zhu M, Huang J, Shen Y, Zhang L. Succinate dehydrogenase inhibitor dimethyl malonate alleviates LPS/d-galactosamine-induced acute hepatic damage in mice. Innate Immun 2019; 25:522-529. [PMID: 31474165 PMCID: PMC6900668 DOI: 10.1177/1753425919873042] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
In addition to its energy-supplying function, increasing evidence suggests that
mitochondria also play crucial roles in the regulation of inflammation.
Succinate dehydrogenase is also known as mitochondrial complex II, and
inhibition of succinate dehydrogenase by dimethyl malonate has been reported to
suppress the production of pro-inflammatory cytokines. In the present study, the
potential anti-inflammatory benefits of dimethyl malonate were investigated in a
mouse model with LPS/d-galactosamine-induced acute hepatic damage. Male
BALB/c mice were injected i.p. with LPS and d-galactosamine to cause
liver injury. The degree of liver injury, inflammatory response and oxidative
stress and the survival of the experimental animals were determined. The results
indicated dimethyl malonate decreased the level of aminotransferases in plasma,
alleviated histological abnormalities in liver, inhibited the induction of TNF-α
and IL-6 in plasma, suppressed hepatocyte apoptosis and improved the survival of
LPS/d-galactosamine-exposed mice. Therefore, inhibition of
succinate dehydrogenase by dimethyl malonate significantly alleviated
LPS/d-galactosamine-induced hepatic damage, which suggests that
succinate dehydrogenase might become a novel target for the intervention of
inflammation-based hepatic disorders.
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Affiliation(s)
- Yongqiang Yang
- Department of Pathophysiology, Chongqing Medical University, PR China
| | - Ruyue Shao
- Clinical Medical School, Chongqing Medical and Pharmaceutical College, PR China.,Chongqing Engineering Research Center of Pharmaceutical Sciences, PR China
| | - Li Tang
- Department of Pathophysiology, Chongqing Medical University, PR China
| | - Longjiang Li
- Department of Pathophysiology, Chongqing Medical University, PR China
| | - Min Zhu
- Department of Pathology, Karamay Central Hospital, PR China
| | - Jiayi Huang
- Department of Pathophysiology, Chongqing Medical University, PR China
| | - Yi Shen
- Department of Pathophysiology, Chongqing Medical University, PR China
| | - Li Zhang
- Department of Pathophysiology, Chongqing Medical University, PR China
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Dong K, Lei Q, Guo R, Wu X, Zhang Y, Cui N, Shi JY, Lu T. Regulating intracellular ROS signal by a dual pH/reducing-responsive nanogels system promotes tumor cell apoptosis. Int J Nanomedicine 2019; 14:5713-5728. [PMID: 31413571 PMCID: PMC6662175 DOI: 10.2147/ijn.s208089] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Accepted: 07/01/2019] [Indexed: 12/21/2022] Open
Abstract
Purpose: The levels of reactive oxygen species (ROS) in tumor cells are much higher than that in normal cells, and rise rapidly under the influence of exogenous or endogenous inducing factors, eventually leading to the apoptosis of tumor cells. Therefore, this study prepared a dual pH/reducing-responsive poly (N-isopropylacrylamide-co-Cinnamaldehyde-co-D-α-tocopheryl polyethylene glycol 1000 succinate, PssNCT) nanogels, which employed two exogenous ROS inducers, cinnamaldehyde (CA) and D-α-tocopheryl polyethylene glycol 1000 succinate (TPGS), to selectively induce apoptosis by regulating ROS levels in tumor cells. Methods: The PssNCT nanogels were prepared by the free radical precipitation polymerization under the crosslink between pH-sensitive hydrazone and reducing-sensitive disulfide bonds, followed by the physicochemical and morphological characteristics investigations. Plasma stability, dual pH/reducing responsive degradation and in vitro release were also assessed. In cell experiments, cytotoxicity in different cells were first detected. The intracellular ROS levels and mitochondrial functions of tumor cells were then evaluated. Moreover, the apoptosis and western-blot assays were employed to verify the association between ROS levels elevation and apoptosis in tumor cells. Results: The nanogels exhibited a round-like hollow structure with the diameter smaller than 200nm. The nanogels were stable in plasma, while showed rapid degradation in acidic and reducing environments, thus achieving significant release of CA and TPGS in these media. Furthermore, the sufficient amplification of ROS signals was induced by the synergistically function of CA and TPGS on mitochondria, which resulted in the opening of the mitochondrial apoptotic pathway and enhanced cytotoxicity on MCF-7 cells. However, nanogels barely affected L929 cells owing to their lower intracellular ROS basal levels. Conclusion: The specific ROS regulation method achieved by these nanogels could be explored to selectively kill tumor cells according to the difference of ROS signals in different kinds of cells.
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Affiliation(s)
- Kai Dong
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an, Shaanxi, People’s Republic of China
| | - Qiuya Lei
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an, Shaanxi, People’s Republic of China
| | - Runhao Guo
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an, Shaanxi, People’s Republic of China
| | - Xianglong Wu
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an, Shaanxi, People’s Republic of China
| | - Yanni Zhang
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an, Shaanxi, People’s Republic of China
| | - Ning Cui
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an, Shaanxi, People’s Republic of China
| | - Jian-Yu Shi
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an, Shaanxi, People’s Republic of China
| | - Tingli Lu
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi’an, Shaanxi, People’s Republic of China
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6
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Whitener RL, Gallo Knight L, Li J, Knapp S, Zhang S, Annamalai M, Pliner VM, Fu D, Radichev I, Amatya C, Savinov A, Yurdagul A, Yuan S, Glawe J, Kevil CG, Chen J, Stimpson SE, Mathews CE. The Type 1 Diabetes-Resistance Locus Idd22 Controls Trafficking of Autoreactive CTLs into the Pancreatic Islets of NOD Mice. THE JOURNAL OF IMMUNOLOGY 2017; 199:3991-4000. [PMID: 29109122 DOI: 10.4049/jimmunol.1602037] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Accepted: 10/10/2017] [Indexed: 01/07/2023]
Abstract
Type 1 diabetes (T1D) has a strong genetic component. The insulin dependent diabetes (Idd)22 locus was identified in crosses of T1D-susceptible NOD mice with the strongly T1D-resistant ALR strain. The NODcALR-(D8Mit293-D8Mit137)/Mx (NOD-Idd22) recombinant congenic mouse strain was generated in which NOD mice carry the full Idd22 confidence interval. NOD-Idd22 mice exhibit almost complete protection from spontaneous T1D and a significant reduction in insulitis. Our goal was to unravel the mode of Idd22-based protection using in vivo and in vitro models. We determined that Idd22 did not impact immune cell diabetogenicity or β cell resistance to cytotoxicity in vitro. However, NOD-Idd22 mice were highly protected against adoptive transfer of T1D. Transferred CTLs trafficked to the pancreatic lymph node and proliferated to the same extent in NOD and NOD-Idd22 mice, yet the accumulation of pathogenic CTLs in the islets was significantly reduced in NOD-Idd22 mice, correlating with disease resistance. Pancreatic endothelial cells from NOD-Idd22 animals expressed lower levels of adhesion molecules, even in response to inflammatory stimuli. Lower adhesion molecule expression resulted in weaker adherence of T cells to NOD-Idd22 endothelium compared with NOD-derived endothelium. Taken together, these results provide evidence that Idd22 regulates the ability of β cell-autoreactive T cells to traffic into the pancreatic islets and may represent a new target for pharmaceutical intervention to potentially prevent T1D.
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Affiliation(s)
- Robert L Whitener
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL 32610
| | - Lisa Gallo Knight
- Division of Pediatric Endocrinology, Department of Pediatrics, University of Florida, Gainesville, FL 32610
| | - Jianwei Li
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL 32610
| | - Sarah Knapp
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL 32610
| | - Shuyao Zhang
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL 32610
| | - Mani Annamalai
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL 32610
| | - Vadim M Pliner
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL 32610
| | - Dongtao Fu
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL 32610
| | - Ilian Radichev
- Children's Health Research Center, Sanford Research, Sioux Falls, SD 57104; and
| | - Christina Amatya
- Children's Health Research Center, Sanford Research, Sioux Falls, SD 57104; and
| | - Alexei Savinov
- Children's Health Research Center, Sanford Research, Sioux Falls, SD 57104; and
| | - Arif Yurdagul
- LSU Health Shreveport, Louisiana State University, Shreveport, LA 71103
| | - Shuai Yuan
- LSU Health Shreveport, Louisiana State University, Shreveport, LA 71103
| | - John Glawe
- LSU Health Shreveport, Louisiana State University, Shreveport, LA 71103
| | | | - Jing Chen
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL 32610
| | - Scott E Stimpson
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL 32610
| | - Clayton E Mathews
- Department of Pathology, Immunology, and Laboratory Medicine, University of Florida, Gainesville, FL 32610; .,Division of Pediatric Endocrinology, Department of Pediatrics, University of Florida, Gainesville, FL 32610
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7
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Feng H, Wang JY, Zheng M, Zhang CL, An YM, Li L, Wu LL. CTRP3 promotes energy production by inducing mitochondrial ROS and up-expression of PGC-1α in vascular smooth muscle cells. Exp Cell Res 2016; 341:177-86. [PMID: 26844631 DOI: 10.1016/j.yexcr.2016.02.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 01/29/2016] [Accepted: 02/01/2016] [Indexed: 11/25/2022]
Abstract
C1q/tumor necrosis factor-related protein-3 (CTRP3) is an adipokine with modulation effects on metabolism and inflammation. Adenosine triphosphate (ATP) exerts multiple biological effects in vascular smooth muscle cells (VSMCs) and energy imbalance is involved in vascular diseases. This study aimed to explore the effect of CTRP3 on energy production and its underlying mechanism in VSMCs. Our results indicated that exogenous CTRP3 increased ATP synthesis and the protein expression of oxidative phosphorylation (OXPHOS)-related molecules, including peroxisome proliferator-activated receptor-γ coactivator (PGC)-1α, sirtuin-3 (SIRT3), complex I, II, III, and V in cultured VSMCs. Depletion of endogenous CTRP3 by small interfering RNA (siRNA) reduced ATP synthesis and the expression of those molecules. PGC-1α knockdown abrogated CTRP3-induced ATP production and OXPHOS-related protein expression. Furthermore, CTRP3 increased mitochondrial reactive oxygen species (ROS) production and mitochondrial membrane potential level. Pretreatment with N-acetyl-L-cysteine, a reactive oxygen species scavenger, and cyanidem-chlorophenylhydrazone, an uncoupler of OXPHOS, suppressed CTRP3-induced ROS production, PGC-1α expression and ATP synthesis. In conclusion, CTRP3 modulates mitochondrial energy production through targets of ROS and PGC-1α in VSMCs.
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Affiliation(s)
- Han Feng
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, PR China; Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, PR China; Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, PR China
| | - Jin-Yu Wang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, PR China; Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, PR China; Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, PR China
| | - Ming Zheng
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, PR China; Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, PR China; Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, PR China
| | - Cheng-Lin Zhang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, PR China; Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, PR China; Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, PR China
| | - Yuan-Ming An
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, PR China; Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, PR China; Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, PR China
| | - Li Li
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, PR China; Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, PR China; Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, PR China.
| | - Li-Ling Wu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, PR China; Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, PR China; Beijing Key Laboratory of Cardiovascular Receptors Research, Beijing, PR China.
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