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Kumari P, Nanda KP, Firdaus H. Adverse effects of cadmium on lymphoid organs, immune cells, and immunological responses. J Appl Toxicol 2024. [PMID: 39044417 DOI: 10.1002/jat.4675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 06/22/2024] [Accepted: 07/09/2024] [Indexed: 07/25/2024]
Abstract
Humans and animals possess robust immune systems to safeguard against foreign pathogens. However, recent reports suggest a greater incidence of immunity breakdown due to exposure to environmental pollutants, with heavy metals emerging as potential candidates in such immuno-toxicological studies. While we have extensive data on the general toxicity resulting from exposure to heavy metals, comprehensive documentation of their role as immune disruptors remains scarce. Cd (Cadmium) exerts immunomodulation by interfering with immune organs and cells, leading to altered structure, physiology, and function, thereby inducing symptoms of immune deregulation, inflammation and/or autoimmunity. This review aims to summarize the link between Cd exposure and immune dysfunction, drawing from case studies on exposed human subjects, as well as research conducted on various model organisms and in-vitro culture systems.
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Affiliation(s)
- Priyanka Kumari
- Department of Life Sciences, Central University of Jharkhand, Cheri-Manatu Campus, Kanke, Ranchi, Jharkhand, India
| | - Kumari Pragati Nanda
- Department of Life Sciences, Central University of Jharkhand, Cheri-Manatu Campus, Kanke, Ranchi, Jharkhand, India
| | - Hena Firdaus
- Department of Life Sciences, Central University of Jharkhand, Cheri-Manatu Campus, Kanke, Ranchi, Jharkhand, India
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Guo C, Ruan J, Li Z, Fu H, Li K, Gong X, Gu X, Gu J, Shi H. Cadmium promoted LPS-induced inflammation through TLR4/IκBα/NFκ-B signaling by increasing ROS-mediated incomplete autophagy. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 278:116405. [PMID: 38696874 DOI: 10.1016/j.ecoenv.2024.116405] [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: 03/16/2024] [Revised: 04/17/2024] [Accepted: 04/24/2024] [Indexed: 05/04/2024]
Abstract
Cadmium (Cd) exposure is considered as non-infectious stressor to human and animal health. Recent studies suggest that the immunotoxicity of low dose Cd is not directly apparent, but disrupts the immune responses when infected with some bacteria or virus. But how Cd alters the adaptive immunity organ and cells remains unclear. In this study, we applied lipopolysaccharide (LPS, infectious stressor) to induced inflammation in spleen tissues and T cells, and investigated the effects after Cd exposure and the underlying mechanism. Cd exposure promoted LPS-induced the expressions of the inflammatory factors, induced abnormal initiation of autophagy, but blocked autophagic flux. The effects Cd exposure under LPS activation were reversed by the autophagy promoter Rapamycin. Under LPS activation conditions, Cd also induced oxidative stress by increasing the levels of reactive oxygen species (ROS) and malondialdehyde (MDA), and reducing total antioxidant capacity (T-AOC) activity. The increased superoxide dismutase (SOD) activity after Cd exposure might be a negative feedback or passive adaptive regulation of oxidative stress. Cd-increased autophagic flux inhibition and TNF-α expression were reversed by ROS scavenger α-tocopherol (TCP). Furthermore, under LPS activation condition, Cd promoted activation of toll-like receptor 4 (TLR4)/IκBα/NFκ-B signaling pathway and increased TLR4 protein stability, which were abolished by the pretreatment of Rapamycin. The present study confirmed that, by increasing ROS-mediated inhibiting autophagic degradation of TLR4, Cd promoted LPS-induced inflammation in spleen T cells. This study identified the mechanism of autophagy in Cd-aggravated immunotoxicity under infectious stress, which could arouse public attention to synergistic toxicity of Cd and bacterial or virus infection.
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Affiliation(s)
- Chuanzhi Guo
- School of Life Sciences, Jiangsu University, Zhenjiang 212013, China
| | - Jiacheng Ruan
- School of Life Sciences, Jiangsu University, Zhenjiang 212013, China
| | - Zehua Li
- School of Life Sciences, Jiangsu University, Zhenjiang 212013, China
| | - Huilin Fu
- School of Life Sciences, Jiangsu University, Zhenjiang 212013, China
| | - Kongdong Li
- School of Life Sciences, Jiangsu University, Zhenjiang 212013, China
| | - Xun Gong
- Department of Rheumatology & Immunology, the Affiliated Hospital of Jiangsu University, Zhenjiang 212013, China
| | - Xin Gu
- King's Own Institute, Sydney 2000, Australia; The University of Newcastle, Callaghan 2308, Australia
| | - Jie Gu
- School of Life Sciences, Jiangsu University, Zhenjiang 212013, China.
| | - Haifeng Shi
- School of Life Sciences, Jiangsu University, Zhenjiang 212013, China.
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3
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Zhou C, Guo S, Gong P, Ba Q, Yao W. Nano-Selenium Alleviates Cd-Induced Chronic Colitis through Intestinal Flora. Nutrients 2024; 16:1330. [PMID: 38732577 PMCID: PMC11085897 DOI: 10.3390/nu16091330] [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: 03/20/2024] [Revised: 04/21/2024] [Accepted: 04/26/2024] [Indexed: 05/13/2024] Open
Abstract
BACKGROUND Cadmium (Cd) is an environmental contaminant that poses risks to human and animal health. Selenium (Se), a beneficial element, alleviates the detrimental consequences of colitis and Cd toxicity. Se is found in food products as both inorganic Se (sodium selenite) and organic Se (typically Se-enriched yeast). Nano-selenium (nano-Se; a novel form of Se produced through the bioreduction of Se species) has recently garnered considerable interest, although its effects against Cd-induced enterotoxicity are poorly understood. The aim of this study was to investigate the impact of nano-selenium on mitigating cadmium toxicity and safeguarding the integrity of the intestinal barrier. METHODS For a total of two cycles, we subjected 6-week-old C57 mice to chronic colitis by exposing them to Cd and nano-selenium for two weeks, followed by DSS water for one week. RESULTS The application of nano-selenium mitigated the intensity of colitis and alleviated inflammation in the colon. Nano-selenium enhanced the diversity of the intestinal flora, elevated the concentration of short-chain fatty acids (SCFAs) in feces, and improved the integrity of the intestinal barrier. CONCLUSIONS In summary, nano-Se may reduce intestinal inflammation by regulating the growth of intestinal microorganisms and protecting the intestinal barrier.
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Affiliation(s)
- Chengdong Zhou
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China; (C.Z.); (S.G.); (P.G.)
| | - Shengliang Guo
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China; (C.Z.); (S.G.); (P.G.)
| | - Pin Gong
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China; (C.Z.); (S.G.); (P.G.)
| | - Qian Ba
- Laboratory Center, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 274 Zhijiang Middle Road, Shanghai 200071, China
| | - Wenbo Yao
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China; (C.Z.); (S.G.); (P.G.)
- Department of Pediatrics, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 274 Zhijiang Middle Road, Shanghai 200071, China
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Wang Z, Sun Y, Yao W, Ba Q, Wang H. Effects of Cadmium Exposure on the Immune System and Immunoregulation. Front Immunol 2021; 12:695484. [PMID: 34354707 PMCID: PMC8330548 DOI: 10.3389/fimmu.2021.695484] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 07/05/2021] [Indexed: 12/21/2022] Open
Abstract
Cadmium (Cd), a biologically non-essential heavy metal, is widespread in the environment, including the air, water, and soil, and is widely present in foods and quantum dot preparations. Cd enters the body primarily through inhalation and ingestion. Its biological half-life in humans is 10-35 years; therefore, Cd poses long-term health risks. While most studies on Cd toxicity have focused on organ and tissue damage, the immunotoxicity of Cd has drawn increasing attention recently. Cd accumulates in immune cells, modulates the function of the immune system, triggers immunological responses, and leads to diverse health problems. Cd acts as an immunotoxic agent by regulating the activity and apoptosis of immune cells, altering the secretion of immune cytokines, inducing reactive oxygen species (ROS) production and oxidative stress, changing the frequency of T lymphocyte subsets, and altering the production of selective antibodies in immune cells. This review summarizes the immunological toxicity of Cd, elucidates the mechanisms underlying Cd toxicity in terms of innate immunity and adaptive immunity, and discusses potential strategies to alleviate the adverse effects of Cd on the immune system.
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Affiliation(s)
- Zhineng Wang
- School of Food and Biotechnological Engineering, Shaanxi University of Science and Technology, Xi'an, China
| | - Ying Sun
- School of Food and Biotechnological Engineering, Shaanxi University of Science and Technology, Xi'an, China
| | - Wenbo Yao
- School of Food and Biotechnological Engineering, Shaanxi University of Science and Technology, Xi'an, China
| | - Qian Ba
- State Key Laboratory of Oncogenes and Related Genes, Center for Single-Cell Omics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hui Wang
- State Key Laboratory of Oncogenes and Related Genes, Center for Single-Cell Omics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Yi L, Dai J, Chen Y, Tong Y, Li Y, Fu G, Teng Z, Huang J, Quan C, Zhang Z, Zhou T, Zhang L, Shi Y. Reproductive toxicity of cadmium in pubertal male rats induced by cell apoptosis. Toxicol Ind Health 2021; 37:469-480. [PMID: 34128436 DOI: 10.1177/07482337211022615] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Cadmium (Cd) is a heavy metal that is widely present in modern industrial production. It is a known, highly toxic environmental endocrine disruptor. Long-term exposure to Cd can cause varying degrees of damage to the liver, kidney, and reproductive system of organisms, especially the male reproductive system. This study aimed to explore the mechanism of Cd toxicity in the male reproductive system during puberty. Eighteen healthy 6-week-old male Sprague-Dawley rats were randomly divided into three groups (control group, low-dose group, and high-dose group) according to their body weight, with six in each group. Cd (0, 1, and 3 mg/kg/day) was given by gavage for 28 consecutive days. The results showed that Cd exposure to each dose group caused a decrease in the testicular organ coefficient and sperm count, compared with the control group. Cd exposure resulted in significant changes in testicular morphology in the 3 mg/kg/day Cd group. In the 1 and 3 mg/kg/day Cd groups, serum testosterone decreased and apoptosis of testicular cells increased significantly (p < 0.05). In addition, compared with the control group, the activity of glutathione peroxidase and superoxide dismutase in each Cd exposure dose group decreased, but the content of malondialdehyde in the high-dose, 3 mg/kg/day Cd treatment group significantly increased (p < 0.05). Although Cd exposure caused an increase in the messenger RNA (mRNA) levels of Bcl-2, Caspase-3 and Caspase-9 in the testicular tissues (p < 0.05), Bcl-2 expression was unchanged (p > 0.05). The expression level of Akt mRNA in testicular tissue of rats in the high-dose 3 mg/kg/day Cd group was increased (p < 0.05). Our data suggest that Cd affected testosterone levels, and apoptosis was observed in spermatids.
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Affiliation(s)
- Lingna Yi
- School of Public Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, 481115Wuhan University of Science and Technology, Wuhan, China
| | - Juan Dai
- 369606Wuhan Centers for Disease Prevention and Control, Wuhan, China
| | - Yong Chen
- Emergency Department, Taikang Tongji (Wuhan) Hospital, Wuhan, China
| | - Yeqing Tong
- Hubei Centers for Disease Prevention and Control, Wuhan, China
| | - You Li
- Tigermed Consulting Ltd, China
| | - Guoqing Fu
- School of Public Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, 481115Wuhan University of Science and Technology, Wuhan, China
| | - Zengguang Teng
- School of Public Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, 481115Wuhan University of Science and Technology, Wuhan, China
| | - Jufeng Huang
- Hanchuan Centers for Disease Prevention and Control, Hanchuan, China
| | - Chao Quan
- School of Public Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, 481115Wuhan University of Science and Technology, Wuhan, China
| | - Zhibing Zhang
- School of Public Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, 481115Wuhan University of Science and Technology, Wuhan, China
| | - Ting Zhou
- School of Public Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, 481115Wuhan University of Science and Technology, Wuhan, China
| | - Ling Zhang
- School of Public Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, 481115Wuhan University of Science and Technology, Wuhan, China
| | - Yuqin Shi
- School of Public Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, 481115Wuhan University of Science and Technology, Wuhan, China
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Mirkov I, Popov Aleksandrov A, Ninkov M, Tucovic D, Kulas J, Zeljkovic M, Popovic D, Kataranovski M. Immunotoxicology of cadmium: Cells of the immune system as targets and effectors of cadmium toxicity. Food Chem Toxicol 2021; 149:112026. [PMID: 33508420 DOI: 10.1016/j.fct.2021.112026] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 12/30/2020] [Accepted: 01/21/2021] [Indexed: 02/06/2023]
Abstract
Cadmium (Cd) has been listed as one of the most toxic substances affecting numerous tissues/organs, including the immune system. Due to variations in studies examining Cd effects on the immune system (exposure regime, experimental systems, immune endpoint measured), data on Cd immunotoxicity in humans and experimental animals are inconsistent. However, it is clear that Cd can affect cells of the immune system and can modulate some immune responses. Due to the complex nature of the immune system and its activities which are determined by multiple interactions, the underlying mechanisms involved in the immunotoxicity of this metal are still vague. Here, the current knowledge regarding the interaction of Cd with cells of the immune system, which may affect immune responses as well as potential mechanisms of consequent biological effects of such activities, is reviewed. Tissue injury caused by Cd-induced effects on innate cell activities depicts components of the immune system as mediators/effectors of Cd tissue toxicity. Cd-induced immune alterations, which may compromise host defense against pathogenic microorganisms and homeostatic reparative activities, stress this metal as an important health hazard.
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Affiliation(s)
- Ivana Mirkov
- Immunotoxicology Group, Department of Ecology, Institute for Biological Research "Siniša Stanković"- National Institute of Republic of Serbia, University of Belgrade, 142 Bulevar despota Stefana, Belgrade, 11000, Serbia
| | - Aleksandra Popov Aleksandrov
- Immunotoxicology Group, Department of Ecology, Institute for Biological Research "Siniša Stanković"- National Institute of Republic of Serbia, University of Belgrade, 142 Bulevar despota Stefana, Belgrade, 11000, Serbia
| | - Marina Ninkov
- Immunotoxicology Group, Department of Ecology, Institute for Biological Research "Siniša Stanković"- National Institute of Republic of Serbia, University of Belgrade, 142 Bulevar despota Stefana, Belgrade, 11000, Serbia; Université Côte D'Azur, Institute of Biology Valrose, Nice (iBV), INSERM U1091, 06107, Nice, France
| | - Dina Tucovic
- Immunotoxicology Group, Department of Ecology, Institute for Biological Research "Siniša Stanković"- National Institute of Republic of Serbia, University of Belgrade, 142 Bulevar despota Stefana, Belgrade, 11000, Serbia
| | - Jelena Kulas
- Immunotoxicology Group, Department of Ecology, Institute for Biological Research "Siniša Stanković"- National Institute of Republic of Serbia, University of Belgrade, 142 Bulevar despota Stefana, Belgrade, 11000, Serbia
| | - Milica Zeljkovic
- Immunotoxicology Group, Department of Ecology, Institute for Biological Research "Siniša Stanković"- National Institute of Republic of Serbia, University of Belgrade, 142 Bulevar despota Stefana, Belgrade, 11000, Serbia
| | - Dusanka Popovic
- Immunotoxicology Group, Department of Ecology, Institute for Biological Research "Siniša Stanković"- National Institute of Republic of Serbia, University of Belgrade, 142 Bulevar despota Stefana, Belgrade, 11000, Serbia
| | - Milena Kataranovski
- Immunotoxicology Group, Department of Ecology, Institute for Biological Research "Siniša Stanković"- National Institute of Republic of Serbia, University of Belgrade, 142 Bulevar despota Stefana, Belgrade, 11000, Serbia.
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7
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Abarikwu SO, Wokoma AFS, Mgbudom-Okah CJ, Omeodu SI, Ohanador R. Effect of Fe and Cd Co-Exposure on Testicular Steroid Metabolism, Morphometry, and Spermatogenesis in Mice. Biol Trace Elem Res 2019; 190:109-123. [PMID: 30291518 DOI: 10.1007/s12011-018-1536-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 09/25/2018] [Indexed: 12/12/2022]
Abstract
The mechanism of testicular toxicity of simultaneous multiple exposures to metals is poorly understood. Previous studies reported that the toxic effect of cadmium (Cd) is modified by tissue concentration of iron (Fe). Using the mice (Mus musculus) model in the present study, we demonstrated that combined Cd (25 mg kg-1 bw) and Fe (100 mg kg-1 bw) treatment increased both Cd and Fe testicular concentrations much more than separate exposures to either of the metals. Intratesticular Cd and Fe concentrations were inversely correlated (r = - 0.731, p < 0.05) on administration of Fe but not on combined exposure to both metals when they were positively correlated (versus Cd; r = 0.793, versus Fe; r = 0.779, p < 0.05). Additionally, Cd + Fe treatment increased testicular lipid peroxidation and depleted intratestesticular testosterone, cholesterol and glutathione concentrations much more than their separate treatment. This was also associated with decreased activity of the germ cell marker, testicular lactate dehydrogenase, and increased testicular myeloperoxidase activity. These changes resulted in decreased seminiferous epithelial height, tubular diameter, germ cell (spermatogonia, spermatocytes, and spermatids) numbers, and severe tissue damage. In conclusion, Cd + Fe intake have synergistic toxic effects on testicular steroid formation and spermatogenesis due to the high testicular concentrations of both metals.
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Affiliation(s)
- Sunny O Abarikwu
- Department of Biochemistry, Faculty of Science, University of Port Harcourt, Choba, Nigeria.
| | - Adaba F S Wokoma
- Department of Biochemistry, Faculty of Science, University of Port Harcourt, Choba, Nigeria
| | | | - Stephen I Omeodu
- Department of Biochemistry, Faculty of Science, University of Port Harcourt, Choba, Nigeria
| | - Robinson Ohanador
- Department of Biochemistry, Faculty of Science, University of Port Harcourt, Choba, Nigeria
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Chakraborty K, Dey A, Bhattacharyya A, Dasgupta SC. Anti-fibrotic effect of black tea (Camellia sinensis) extract in experimental pulmonary fibrosis. Tissue Cell 2019; 56:14-22. [DOI: 10.1016/j.tice.2018.11.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 11/27/2018] [Accepted: 11/28/2018] [Indexed: 12/17/2022]
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9
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Chakraborty K, Chatterjee S, Bhattacharyya A. Impact of Treg on other T cell subsets in progression of fibrosis in experimental lung fibrosis. Tissue Cell 2018; 53:87-92. [PMID: 30060832 DOI: 10.1016/j.tice.2018.06.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 06/12/2018] [Accepted: 06/14/2018] [Indexed: 01/04/2023]
Abstract
Idiopathic pulmonary fibrosis is an irreversible, progressive and lethal lung disease. Regulatory T cells (Tregs) and Th17 cells both are involved in lung fibrosis. But there are only few reports regarding the effect of Treg on other T cell subsets in experimental lung fibrosis. The aim of this study was to investigate the impact of Treg on Th17, CD4+CD28-T, CD4+CD28+T and CD8 + T cell subsets that could drive lung fibrosis. To reach the goal of our study, first we depleted Tregs by anti-CD25 mAb injection in experimental C57BL/6 mice model. It has been demonstrated in our study that depletion of Treg ameliorates bleomycin-induced lung fibrosis by immune modulating Th17 and other important T cell subsets response in lung. Our flow cytometry data revealed that the percentages of Th17, CD4+CD28-T, CD4+CD28+T and CD8 + T cell subsets were decreased in experimental lung fibrosis after Treg depletion. We also observed significant downregulation of IL-17 A in Treg-depleted mice after bleomycin delivery. In addition, the study also suggested that Treg depletion led to considerable upregulation of IFN-γ after bleomycin administration. Therefore, Th17 cells, CD8 + T cells, CD4+CD28- and CD4+CD28+ T cell subsets all are controlled by regulatory T cell, help in progression of fibrosis in experimental lung fibrosis.
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Affiliation(s)
- Kaustav Chakraborty
- Immunology Lab, Department of Zoology, University of Calcutta, 35, Ballygunge Circular Road, Kolkata 700019, West Bengal, India.
| | - Soumya Chatterjee
- Immunology Lab, Department of Zoology, University of Calcutta, 35, Ballygunge Circular Road, Kolkata 700019, West Bengal, India
| | - Arindam Bhattacharyya
- Immunology Lab, Department of Zoology, University of Calcutta, 35, Ballygunge Circular Road, Kolkata 700019, West Bengal, India.
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Ye L, Jiang Y, Yang G, Yang W, Hu J, Cui Y, Shi C, Liu J, Wang C. Murine bone marrow-derived DCs activated by porcine rotavirus stimulate the Th1 subtype response in vitro. Microb Pathog 2017; 110:325-334. [PMID: 28710013 DOI: 10.1016/j.micpath.2017.07.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 12/18/2016] [Accepted: 07/10/2017] [Indexed: 11/22/2022]
Abstract
Rotavirus (RV) infection causes acute, watery dehydrating diarrhea and even death in infants and other young animals, resulting in a severe economic burden; however, little is known about the innate immune mechanisms associated with RV infection. Dendritic cells (DCs), which are professional antigen-presenting cells (APCs), serve as a bridge connecting the innate and adaptive immune system. In this study, the interaction between murine bone marrow-derived DCs (BMDCs) and porcine rotavirus (PRV) was investigated in vitro. Upon stimulation, the expression levels of MHC-II, CD40, CD80, CD86 and CD83 in BMDCs increased in a time-dependent manner, indicating activation and maturation by PRV. In addition, up-regulated Toll-like receptor 2 (TLR2), TLR3 and NF-κB increased the production of interleukin-12 and interferon-γ. The PRV-stimulated BMDCs also showed increased stimulatory capacity in mixed lymphocyte reactions and promoted the Th1 subtype response.
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Affiliation(s)
- Liping Ye
- College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun, 130118, China
| | - Yanlong Jiang
- College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun, 130118, China
| | - Guilian Yang
- College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun, 130118, China
| | - Wentao Yang
- College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun, 130118, China
| | - Jingtao Hu
- College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun, 130118, China
| | - Yulin Cui
- College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun, 130118, China
| | - Chunwei Shi
- College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun, 130118, China
| | - Jing Liu
- College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun, 130118, China
| | - Chunfeng Wang
- College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Key Laboratory of Animal Production and Product Quality Safety of Ministry of Education, Jilin Agricultural University, Changchun, 130118, China.
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Liu J, Wei S, Liu L, Shan F, Zhao Y, Shen G. The role of porcine reproductive and respiratory syndrome virus infection in immune phenotype and Th1/Th2 balance of dendritic cells. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2016; 65:245-252. [PMID: 27473784 DOI: 10.1016/j.dci.2016.07.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 07/19/2016] [Accepted: 07/19/2016] [Indexed: 06/06/2023]
Abstract
The aim of this study was to characterize the immune response of dendritic cells derived from monocytes (Mo-DCs) in the porcine peripheral blood following infection with porcine reproductive and respiratory syndrome virus (PRRSV). Viral load assays indicated that PRRSV efficiently infected Mo-DCs but failed to replicate, whereas PRRSV infection of Mo-DCs decreased the expression of SLA-I, SLA-II, CD80 and CD40 compared with those of mock Mo-DCs. Furthermore, we analyzed the cytokine profiles using quantitative RT-PCR and ELISA. Results indicated apparent changes in IL-10 and IL-12 p40 expression but not in IFN-γ and TNF-α among Mo-DCs infected with PRRSV and uninfected Mo-DCs. Additionally, flow cytometry analysis of the altered Mo-DCs together with IL-4 and GM-CSF induction for 7days revealed the typical morphology and phenotype with 91.73% purity before infection with PRRSV. Overall, our data demonstrate that PRRSV impaired the normal antigen presentation of Mo-DCs and led to inadequate adaptive immune response by down-regulating the expression of SLA-I,SLA-II, CD80 and CD40. Enhanced Th2 -type cytokine IL-10 secretion and reduced Th1-type cytokines IL-12p40,IFN-γ and TNF-α secretion results in Th1/Th2 imbalance.
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Affiliation(s)
- Jinling Liu
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, PR China
| | - Shu Wei
- The Preventive Center of Animal Disease of LiaoNing Province, No.95, Renhe Road, Shenbei District, Shenyang 110164, PR China
| | - Lixia Liu
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, PR China
| | - Fengping Shan
- Department of Immunology, Basic School of Medicine, China Medical University, No. 92, North Second Road, Shenyang 110001, PR China
| | - Yujun Zhao
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, PR China
| | - Guoshun Shen
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang, 110866, PR China.
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Tong C, Cui Z, Sun X, Lei L, Feng X, Sun C, Gu J, Han W. Mannan Derivatives Instruct Dendritic Cells to Induce Th1/Th2 Cells Polarization via Differential Mitogen-Activated Protein Kinase Activation. Scand J Immunol 2016; 83:10-7. [PMID: 26332129 DOI: 10.1111/sji.12369] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Accepted: 08/19/2015] [Indexed: 02/06/2023]
Abstract
Mannan derived from fungal cell walls have potential uses as immunomodulating agents and vaccine adjuvants. Immunization with antigen conjugated to oxidized mannan (OM) or reduced mannan (RM) have induced differential immune responses in mice. Yet, the adjuvant effect and differences in molecular profiles of OM and RM on APCs is unresolved. Here, we investigated the response of mouse bone marrow-derived DCs to OM and RM. OM and RM stimulated DCs to produce differential Th1/Th2-inducing cytokines in vitro. OM and RM-activated DCs stimulated allogeneic T-cell Th1 and Th2 polarization reaction. OM instruct DCs to stimulate Th1 responses via IL-12p70 production, which depends on the phosphorylation of p38, RM barely induce IL-12p70, but IL-10 and IL-4, and magnitude of ERK phosphorylation, which results in a Th2 bias. These findings indicate that OM and RM were potent adjuvant capable of directly initiating DC activation Th1 and Th2 polarization respectively.
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Affiliation(s)
- C Tong
- College of Veterinary Medicine, Jilin University, Changchun, China.,College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, Heilongjiang, China
| | - Z Cui
- College of Veterinary Medicine, Jilin University, Changchun, China
| | - X Sun
- College of Veterinary Medicine, Jilin University, Changchun, China
| | - L Lei
- College of Veterinary Medicine, Jilin University, Changchun, China
| | - X Feng
- College of Veterinary Medicine, Jilin University, Changchun, China
| | - C Sun
- College of Veterinary Medicine, Jilin University, Changchun, China
| | - J Gu
- College of Veterinary Medicine, Jilin University, Changchun, China
| | - W Han
- College of Veterinary Medicine, Jilin University, Changchun, China.,Jiangsu Co-innovation Center for the Prevention and Control of important Animal Infectious Disease and Zoonoses, Yangzhou University, Yangzhou, China
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Xu X, Gao Y, Shan F, Feng J. A novel role for RGMa in modulation of bone marrow-derived dendritic cells maturation induced by lipopolysaccharide. Int Immunopharmacol 2016; 33:99-107. [PMID: 26896667 DOI: 10.1016/j.intimp.2016.02.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 01/16/2016] [Accepted: 02/08/2016] [Indexed: 02/06/2023]
Abstract
Repulsive guidance molecule a (RGMa) is known to mediate immune responses and has been indicated to modulates T cell activation and autoimmune diseases by dendritic cells (DCs), which hints its significant function in the latter cells. The aim of our study, therefore, was to evaluate the function of RGMa in DC maturation. We found that small interfering RNA (siRNA) successfully silenced the expression of RGMa in DCs. Even after LPS stimulation, RGMa-silenced DCs displayed an immature morphology, characterized by small, round cells with a few cell processes and organelles, and many pinocytotic vesicles. In the presence of LPS, RGMa siRNA transfection markedly reduced levels of CD80, CD86, CD40, and MHC II expression, as well as the secretion of IL-12p70 and TNF-α. With LPS treatment, RGMa siRNA-transfected DCs also showed increased levels of IL-10 and endocytosis. Moreover, in the presence of LPS, RGMa siRNA-transfected DCs displayed a low ability to induce T cell proliferation and differentiation, compared with negative control (NTi)-transfected or control DCs (p<0.05 for both). We conclude that after LPS stimulation, RGMa siRNA-transfected DCs show immunoregulatory and tolerogenic characteristics, which provides new insights into the immune system.
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Affiliation(s)
- Xuxu Xu
- Department of Neurology, Shengjing Hospital, Affiliated Hospital of China Medical University, Shenyang 110004, PR China
| | - Yan Gao
- Department of Neurology, Shengjing Hospital, Affiliated Hospital of China Medical University, Shenyang 110004, PR China
| | - Fengping Shan
- Department of Immunology, School of Basic Medical Science, China Medical University, Shenyang 110000, PR China
| | - Juan Feng
- Department of Neurology, Shengjing Hospital, Affiliated Hospital of China Medical University, Shenyang 110004, PR China.
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Li Y, Sheng K, Chen J, Wu Y, Zhang F, Chang Y, Wu H, Fu J, Zhang L, Wei W. Regulation of PGE2 signaling pathways and TNF-alpha signaling pathways on the function of bone marrow-derived dendritic cells and the effects of CP-25. Eur J Pharmacol 2015; 769:8-21. [PMID: 26415983 DOI: 10.1016/j.ejphar.2015.09.036] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2015] [Revised: 09/22/2015] [Accepted: 09/23/2015] [Indexed: 12/29/2022]
Abstract
This study was to investigate PGE2 and TNF-alpha signaling pathway involving in the maturation and activation of bone marrow dendritic cells (DCs) and the effect of CP-25. Bone marrow DCs were isolated and stimulated by PGE2 and TNF-alpha respectively. The markers of maturation and activation expressed on DCs, such as CD40, CD80, CD83, CD86, MHC-II, and the ability of antigen uptake of DCs were analyzed by flow cytometry. The proliferation of T cells co-cultured with DCs, the signaling pathways of PGE2-EP4-cAMP and TNF-alpha-TRADD-TRAF2-NF-κB in DCs were analyzed. The results showed that both PGE2 and TNF-alpha up-regulated the expressions of CD40, CD80, CD83, CD86, and MHC-II, decreased the antigen uptake of DCs, and DCs stimulated by PGE2 or TNF-alpha could increase T cell proliferation. CP-25 (10(-5), 10(-6), and 10(-7)mol/l) decreased significantly the expressions of CD40, CD80, CD83, CD86 and MHC-II, increased the antigen uptake of DCs, and suppressed T cell proliferation induced by DCs. PGE2 increased the expressions of EP4, NF-κB and down-regulated cAMP level of DCs. TNF-alpha could also up-regulate TNFR1, TRADD, TRAF2, and NF-κB expression of DCs. CP-25 (10(-5), 10(-6), and 10(-7)mol/l) decreased the expressions of EP4 and NF-κB, increased cAMP level in DCs stimulated by PGE2. CP-25 (10(-5), 10(-6), and 10(-7)mol/l) also could down-regulate significantly TNFR1, TRADD, TRAF2, and NF-κB expression in DCs stimulated by TNF-alpha. These results demonstrate that PGE2 and TNF-alpha could enhance DCs functions by mediating PGE2-EP4-cAMP pathway, TNF-alpha-TNFR1-TRADD-TRAF2-NF-κB pathway respectively. CP-25 might inhibit the function of DCs through regulating PGE2-EP4-cAMP and TNF-alpha-TNFR1-TRADD-TRAF2-NF-κB pathways.
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Affiliation(s)
- Ying Li
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-inflammatory and Immune Medicine, Hefei 230032, Anhui Province, China
| | - Kangliang Sheng
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-inflammatory and Immune Medicine, Hefei 230032, Anhui Province, China
| | - Jingyu Chen
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-inflammatory and Immune Medicine, Hefei 230032, Anhui Province, China
| | - Yujing Wu
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-inflammatory and Immune Medicine, Hefei 230032, Anhui Province, China
| | - Feng Zhang
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-inflammatory and Immune Medicine, Hefei 230032, Anhui Province, China
| | - Yan Chang
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-inflammatory and Immune Medicine, Hefei 230032, Anhui Province, China
| | - Huaxun Wu
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-inflammatory and Immune Medicine, Hefei 230032, Anhui Province, China
| | - Jingjing Fu
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-inflammatory and Immune Medicine, Hefei 230032, Anhui Province, China
| | - Lingling Zhang
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-inflammatory and Immune Medicine, Hefei 230032, Anhui Province, China.
| | - Wei Wei
- Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-inflammatory and Immune Medicine, Hefei 230032, Anhui Province, China.
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Feng H, Fan J, Song Z, Du X, Chen Y, Wang J, Song G. Characterization and immunoenhancement activities of Eucommia ulmoides polysaccharides. Carbohydr Polym 2015; 136:803-11. [PMID: 26572415 DOI: 10.1016/j.carbpol.2015.09.079] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 09/08/2015] [Accepted: 09/23/2015] [Indexed: 12/25/2022]
Abstract
The aim of this study is to investigate the physicochemical properties, monosaccharide composition and immunomodulatory effects of Eucommia ulmoides Oliv. polysaccharide. The average molecular weight (Mw) of EUPS was 11.4632 × 10(5)Da. The monosaccharide components of EUPS were glucose, fructose, mannose, fucose, galactose and arabinose with a relative mass of 36.6%, 16.6%, 14.2%, 15.7%, 9.5% and 7.4%, respectively. In in vitro experiments, EUPS (1.2-75 μg/mL) treatment of dendritic cells (DC) increased their surface expression of MHC I/II, CD80, CD40, and CD86 and indicated that EUPS induced DC maturation. Furthermore, EUPS also significantly enhanced lymphocyte proliferation and significantly enhanced cytokine (IL-4 and IFN-γ) production. In in vivo experiments, our data showed that EUPS could significantly enhance the FMDV-specific IgG, IgG1, IgG2a, and IgG2b antibody titers and T cell proliferation. Together, these results suggest that EUPS is a strong immunostimulant.
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Affiliation(s)
- Haibo Feng
- Department of Veterinary Medicine, Southwest University, Rongchang, Chongqing 402460, PR China.
| | - Jing Fan
- Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu, Sichuan 610051, PR China
| | - Zhenhui Song
- Department of Veterinary Medicine, Southwest University, Rongchang, Chongqing 402460, PR China
| | - Xiaogang Du
- Applied Biophysics and Immune Engineering Laboratory, College of Life and Science, Sichuan Agricultural University, Ya'an, Sichuan 625014, PR China
| | - Ying Chen
- Department of Veterinary Medicine, Southwest University, Rongchang, Chongqing 402460, PR China
| | - Jishuang Wang
- Department of Veterinary Medicine, Southwest University, Rongchang, Chongqing 402460, PR China
| | - Guodong Song
- Department of Veterinary Medicine, Southwest University, Rongchang, Chongqing 402460, PR China
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