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Jing J, Xiang X, Tang J, Wang L, Jia G, Liu G, Chen X, Tian G, Cai J, Kang B, Zhao H. Hydroxy Selenomethionine Exert Different Protective Effects Against Dietary Oxidative Stress-Induced Inflammatory Responses in Spleen and Thymus of Pigs. Biol Trace Elem Res 2024; 202:3107-3118. [PMID: 37910261 DOI: 10.1007/s12011-023-03925-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 10/21/2023] [Indexed: 11/03/2023]
Abstract
Oxidative stress (OS) is widespread in animal husbandry, which causes edema in immune organs and suppresses immune function of animals. Selenium (Se) is an essential trace element involved in immune regulation and improves animals' immunity. In present study, growing and finishing pigs were used to determine the protective effects of the new organic Se (hydroxy selenomethionine, OH-SeMet) on dietary oxidative stress (DOS) induced inflammatory responses, and the corresponding response of selenotranscriptome in spleen and thymus. Forty castrated male pigs (25.0 ± 3.0 kg) were randomly grouped into 5 dietary treatments (n = 8) and fed on basal diet (formulated with normal corn and normal oils) or oxidized diet (formulated with aged corn and oxidized oils) supplied with 0.0, 0.3, 0.6, or 0.9 mg Se/kg OH-SeMet, after 16 weeks, the corresponding indicators were determined. Results showed that DOS moderately increased the spleen and thymus index, decreased the antioxidant capacity of serum, spleen and thymus, and increased the concentration of serum inflammatory cytokines (IL-6 and TNF-α). The inflammatory response in spleen and thymus under DOS were discrepancies, DOS increased the expression of inflammation-related gene (IFN-β and TNF-α) in thymus, while exhibited no impact on that of the spleen. Dietary OH-SeMet supplementation exhibited protective effects, which decreased the spleen and thymus index, improved the antioxidant capacity of serum, spleen and thymus, and decreased the serum IL-1β and IL-6 levels. Se supplementation exhibited limited impact on the inflammation-related genes in spleen, except decreased the mRNA expression of IL-8. On the contrary, Se supplementation showed more impact on that of the thymus, which decreased the mRNA expression of IL-8 and TNF-α, increased the expression of IFN-β, IL-6, IL-10, and MCP1. In addition, selenotranscriptome responsive to dietary Se levels in spleen and thymus were discrepancies. Se supplementation increased the mRNA expression of the selenotranscriptome in thymus, while exhibited limited impact on that of in spleen. In conclusion, dietary OH-SeMet supplementation mitigates the DOS-induced immunological stress by increasing the antioxidant capacity and altering the expression of inflammation-related genes and selenotranscriptome in immune organs, and these response in spleen and thymus were discrepancies.
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Affiliation(s)
- Jinzhong Jing
- Animal Nutrition Institute, Key Laboratory of Animal Disease-resistant Nutrition of Ministry of Education, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Xiaoyu Xiang
- Animal Nutrition Institute, Key Laboratory of Animal Disease-resistant Nutrition of Ministry of Education, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Jiayong Tang
- Animal Nutrition Institute, Key Laboratory of Animal Disease-resistant Nutrition of Ministry of Education, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Longqiong Wang
- Animal Nutrition Institute, Key Laboratory of Animal Disease-resistant Nutrition of Ministry of Education, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Gang Jia
- Animal Nutrition Institute, Key Laboratory of Animal Disease-resistant Nutrition of Ministry of Education, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Guangmang Liu
- Animal Nutrition Institute, Key Laboratory of Animal Disease-resistant Nutrition of Ministry of Education, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Xiaoling Chen
- Animal Nutrition Institute, Key Laboratory of Animal Disease-resistant Nutrition of Ministry of Education, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Gang Tian
- Animal Nutrition Institute, Key Laboratory of Animal Disease-resistant Nutrition of Ministry of Education, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Jingyi Cai
- Animal Nutrition Institute, Key Laboratory of Animal Disease-resistant Nutrition of Ministry of Education, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Bo Kang
- College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China
| | - Hua Zhao
- Animal Nutrition Institute, Key Laboratory of Animal Disease-resistant Nutrition of Ministry of Education, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China.
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Zhang Y, Wu S, Liu Y, Ma J, Li W, Xu X, Wang Y, Luo Y, Cheng K, Zhuang R. Acute Cold Water-Immersion Restraint Stress Induces Intestinal Injury and Reduces the Diversity of Gut Microbiota in Mice. Front Cell Infect Microbiol 2021; 11:706849. [PMID: 34722327 PMCID: PMC8551804 DOI: 10.3389/fcimb.2021.706849] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Accepted: 09/28/2021] [Indexed: 02/04/2023] Open
Abstract
Growing evidence has demonstrated that stress triggers gastrointestinal (GI) disorders. This study aimed to investigate how the acute cold water-immersion restraint (CWIR) stress affects intestinal injury and gut microbiota (GM) distribution. Male C57BL/6 mice were used to establish a CWIR animal model. Hematoxylin–eosin and periodic acid–Schiff staining were performed to assess intestinal histopathological changes. Reverse transcription quantitative polymerase chain reaction (RT-qPCR) analysis and immunofluorescence staining were used to evaluate the expression of inflammatory cytokines and immune cell infiltration in the intestinal tissues. The gut permeability and intestinal occludin protein expression were determined through fluorescein isothiocyanate-dextran detection and western blot, respectively. GM profiles were analyzed via high-throughput sequencing of the fecal bacterial 16S rRNA genes. Results showed that CWIR induced more severe intestinal mucosal injury compared to the control, leading to a significant increase in tumor necrosis factor-α expression, but no infiltration of neutrophil and T cells. CWIR also resulted in GI disruption and increased the permeability of the intestinal mucosa. GM profiles showed that CWIR reduced GM diversity of mice compared with the control group. Specifically, aerobic and gram-negative bacteria significantly increased after CWIR, which was associated with the severity of gut injury under stress. Therefore, acute CWIR leads to severe intestinal damage with inflammation and disrupts the GM homeostasis, contributing to decreased GM diversity. Our findings provide the theoretical basis for the further treatment of intestinal disorders induced by CWIR.
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Affiliation(s)
- Yuan Zhang
- Institute of Medical Research, Northwestern Polytechnical University, Xi'an, China
| | - Shuwen Wu
- Institute of Medical Research, Northwestern Polytechnical University, Xi'an, China
| | - Yongming Liu
- Orthopedic Department of Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Jingchang Ma
- Department of Immunology, Fourth Military Medical University, Xi'an, China
| | - Wenpeng Li
- Orthopedic Department of Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Xuexue Xu
- Institute of Medical Research, Northwestern Polytechnical University, Xi'an, China
| | - Yuling Wang
- Department of Immunology, Fourth Military Medical University, Xi'an, China
| | - Yanling Luo
- Library of Fourth Military Medical University, Xi'an, China
| | - Kun Cheng
- Department of Immunology, Fourth Military Medical University, Xi'an, China
| | - Ran Zhuang
- Institute of Medical Research, Northwestern Polytechnical University, Xi'an, China.,Department of Immunology, Fourth Military Medical University, Xi'an, China
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Solano ME, Kowal MK, O'Rourke GE, Horst AK, Modest K, Plösch T, Barikbin R, Remus CC, Berger RG, Jago C, Ho H, Sass G, Parker VJ, Lydon JP, DeMayo FJ, Hecher K, Karimi K, Arck PC. Progesterone and HMOX-1 promote fetal growth by CD8+ T cell modulation. J Clin Invest 2015; 125:1726-38. [PMID: 25774501 DOI: 10.1172/jci68140] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Accepted: 01/29/2015] [Indexed: 12/20/2022] Open
Abstract
Intrauterine growth restriction (IUGR) affects up to 10% of pregnancies in Western societies. IUGR is a strong predictor of reduced short-term neonatal survival and impairs long-term health in children. Placental insufficiency is often associated with IUGR; however, the molecular mechanisms involved in the pathogenesis of placental insufficiency and IUGR are largely unknown. Here, we developed a mouse model of fetal-growth restriction and placental insufficiency that is induced by a midgestational stress challenge. Compared with control animals, pregnant dams subjected to gestational stress exhibited reduced progesterone levels and placental heme oxygenase 1 (Hmox1) expression and increased methylation at distinct regions of the placental Hmox1 promoter. These stress-triggered changes were accompanied by an altered CD8+ T cell response, as evidenced by a reduction of tolerogenic CD8+CD122+ T cells and an increase of cytotoxic CD8+ T cells. Using progesterone receptor- or Hmox1-deficient mice, we identified progesterone as an upstream modulator of placental Hmox1 expression. Supplementation of progesterone or depletion of CD8+ T cells revealed that progesterone suppresses CD8+ T cell cytotoxicity, whereas the generation of CD8+CD122+ T cells is supported by Hmox1 and ameliorates fetal-growth restriction in Hmox1 deficiency. These observations in mice could promote the identification of pregnancies at risk for IUGR and the generation of clinical interventional strategies.
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