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Yu C, Li Y, Li Y, Li S, Zeng F, Yu J, Ji Z, Li K, Zhai H. A novel mechanism for regulating lung immune homeostasis: Zukamu granules alleviated acute lung injury in mice by inhibiting NLRP3 inflammasome activation and regulating Th17/Treg cytokine balance. J Ethnopharmacol 2024; 324:117831. [PMID: 38280662 DOI: 10.1016/j.jep.2024.117831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 01/22/2024] [Accepted: 01/24/2024] [Indexed: 01/29/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Acute lung injury (ALI) is a severely acute lung inflammation with high morbidity and mortality. Zukamu granules (ZKMG) is one of the Uygur patent drugs commonly used in clinic, which is included in the National Essential Drugs List (2018 edition). Clinical studies have shown that ZKMG has a significant effect on acute upper respiratory tract infection, and has better anti-inflammatory and antipyretic effects. However, the immunomodulatory mechanism of ZKMG on ALI is still not clear. AIM OF THE STUDY The aim of this study is to investigate the lung protective effect and immunomodulatory mechanism of ZKMG on lipopolysaccharide (LPS) -induced ALI mice, and to provide an important basis for the treatment strategy and theoretical basis of ALI. MATERIALS AND METHODS First, network pharmacology was used to predict the potential signaling pathways and biological processes of ZKMG related to immunology. Molecular docking technique was used to predict the possibility between the core components of ZKMG acting on NLRP3 protein. In addition, protein levels of F4/80 in lung tissues were assessed by Immunohistochemistry (IHC). The contents of IL-1β, IL-18, IL-17A and IL-10 in the lung tissue and serum, MPO in the lung tissue were detected by enzyme-linked immunosorbent assay (ELISA). Real-time quantitative PCR analysis (RT-qPCR) was used to detect NLRP3 mRNA in lung tissue. Protein levels of NLRP3, Caspase-1, Cleaved caspase-1 p20, ASC, and GSDMD were detected by Western blot (WB). RESULTS The results of network pharmacology showed that the immune pathways of ZKMG were mainly Th17 signaling pathway, IL-17 signaling pathway, NOD-like receptor signaling pathway, etc. Molecular docking results showed that the core components of ZKMG had good binding ability to NLRP3 protein. The verification experiments showed that ZKMG can reduce the degree of lung injury, and reduce the level of inflammatory infiltration of neutrophils and macrophages by reducing the content of MPO and F4/80. In addition, ZKMG can reduce NLRP3 mRNA, inhibit the expression of NLRP3/Caspase-1/GSDMD and other related pathway proteins, and reduce inflammatory factors such as IL-1β and IL-18. It can also reduce the content of pro-inflammatory cytokine IL-17A, increase the content of anti-inflammatory cytokine IL-10 in lung tissue. CONCLUSION ZKMG can reduce the degree of lung tissue injury in ALI by inhibiting NLRP3/Caspase-1/GSDMD signaling pathway and restoring the IL-17A/IL-10 cytokine balance, and its protective mechanism may be related to the regulation of lung immune homeostasis. It will provide a new strategy for studying the regulation of lung immune homeostasis.
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Affiliation(s)
- Chenqian Yu
- Standardization Research Center of Traditional Chinese Medicine Dispensing, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 102488, China
| | - Yanan Li
- Standardization Research Center of Traditional Chinese Medicine Dispensing, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 102488, China
| | - Yixuan Li
- Standardization Research Center of Traditional Chinese Medicine Dispensing, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 102488, China
| | - Siyu Li
- Standardization Research Center of Traditional Chinese Medicine Dispensing, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 102488, China
| | - Fengping Zeng
- Standardization Research Center of Traditional Chinese Medicine Dispensing, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 102488, China
| | - Jing Yu
- Institute of Traditional Uygur Medicine, Xinjiang Medical University, Urumqi, 830011, China
| | - Zhihong Ji
- New Cicon Pharmaceutical Co. LTD., Urumchi, 830001, China
| | - Keao Li
- New Cicon Pharmaceutical Co. LTD., Urumchi, 830001, China
| | - Huaqiang Zhai
- Standardization Research Center of Traditional Chinese Medicine Dispensing, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 102488, China; Institute of Traditional Uygur Medicine, Xinjiang Medical University, Urumqi, 830011, China.
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Cai W, Lian L, Li A, Zhang Q, Li M, Zhang J, Xie Y. Cardiac resident macrophages: The core of cardiac immune homeostasis. Cell Signal 2024; 119:111169. [PMID: 38599440 DOI: 10.1016/j.cellsig.2024.111169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 03/24/2024] [Accepted: 04/07/2024] [Indexed: 04/12/2024]
Abstract
Cardiac resident macrophages (CRMs) are essential in maintaining the balance of the immune homeostasis in the heart. One of the main factors in the progression of cardiovascular diseases, such as myocarditis, myocardial infarction(MI), and heart failure(HF), is the imbalance in the regulatory mechanisms of CRMs. Recent studies have reported novel heterogeneity and spatiotemporal complexity of CRMs, and their role in maintaining cardiac immune homeostasis and treating cardiovascular diseases. In this review, we focus on the functions of CRMs, including immune surveillance, immune phagocytosis, and immune metabolism, and explore the impact of CRM's homeostasis imbalance on cardiac injury and cardiac repair. We also discuss the therapeutic approaches linked to CRMs. The immunomodulatory strategies targeting CRMs may be a therapeutic approach for the treatment of cardiovascular disease.
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Affiliation(s)
- Wenhui Cai
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300183, China; National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin 300193, China; Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
| | - Lu Lian
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300183, China; National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin 300193, China; Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
| | - Aolin Li
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300183, China; National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin 300193, China; Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
| | - Qianqian Zhang
- Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
| | - Mengmeng Li
- Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
| | - Junping Zhang
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300183, China.
| | - YingYu Xie
- College of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China.
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Gong X, Ma Y, Deng X, Li A, Li X, Kong X, Liu Y, Liu X, Guo K, Yang Y, Li Z, Wei H, Zhou D, Hong Z. Intestinal dysbiosis exacerbates susceptibility to the anti-NMDA receptor encephalitis-like phenotype by changing blood brain barrier permeability and immune homeostasis. Brain Behav Immun 2024; 116:34-51. [PMID: 38030048 DOI: 10.1016/j.bbi.2023.11.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Revised: 11/16/2023] [Accepted: 11/23/2023] [Indexed: 12/01/2023] Open
Abstract
Changes in the intestinal microbiota have been observed in patients with anti-N-methyl-D-aspartate receptor encephalitis (NMDARE). However, whether and how the intestinal microbiota is involved in the pathogenesis of NMDARE susceptibility needs to be demonstrated. Here, we first showed that germ-free (GF) mice that underwent fecal microbiota transplantation (FMT) from NMDARE patients, whose fecal microbiota exhibited low short-chain fatty acid content, decreased abundance of Lachnospiraceae, and increased abundance of Verrucomicrobiota, Akkermansia, Parabacteroides, Oscillospirales, showed significant behavioral deficits. Then, these FMT mice were actively immunized with an amino terminal domain peptide from the GluN1 subunit (GluN1356-385) to mimic the pathogenic process of NMDARE. We found that FMT mice showed an increased susceptibility to an encephalitis-like phenotype characterized by more clinical symptoms, greater pentazole (PTZ)-induced susceptibility to seizures, and higher levels of T2 weighted image (T2WI) hyperintensities following immunization. Furthermore, mice with dysbiotic microbiota had impaired blood-brain barrier integrity and a proinflammatory condition. In NMDARE-microbiota recipient mice, the levels of Evan's blue (EB) dye extravasation increased, ZO-1 and claudin-5 expression decreased, and the levels of proinflammatory cytokines (IL-1, IL-6, IL-17, TNF-α and LPS) increased. Finally, significant brain inflammation, mainly in hippocampal and cortical regions, with modest neuroinflammation, immune cell infiltration, and reduced expression of NMDA receptors were observed in NMDARE microbiota recipient mice following immunization. Overall, our findings demonstrated that intestinal dysbiosis increased NMDARE susceptibility, suggesting a new target for limiting the occurrence of the severe phenotype of NMDARE.
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Affiliation(s)
- Xue Gong
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Institute of Brain Science and Brain-inspired Technology of West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Neurology, Chengdu Shangjin Nanfu Hospital, Chengdu, Sichuan 611730, China; National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Yaru Ma
- Institute of Brain Science and Brain-inspired Technology of West China Hospital, Sichuan University, Chengdu, Sichuan, China; National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Xiaolin Deng
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Institute of Brain Science and Brain-inspired Technology of West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Neurology, Chengdu Shangjin Nanfu Hospital, Chengdu, Sichuan 611730, China; National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Aiqing Li
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Institute of Brain Science and Brain-inspired Technology of West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Neurology, Chengdu Shangjin Nanfu Hospital, Chengdu, Sichuan 611730, China; National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Xingjie Li
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Institute of Brain Science and Brain-inspired Technology of West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Neurology, Chengdu Shangjin Nanfu Hospital, Chengdu, Sichuan 611730, China; National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Xueying Kong
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Institute of Brain Science and Brain-inspired Technology of West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Neurology, Chengdu Shangjin Nanfu Hospital, Chengdu, Sichuan 611730, China; National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Yue Liu
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Institute of Brain Science and Brain-inspired Technology of West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Neurology, Chengdu Shangjin Nanfu Hospital, Chengdu, Sichuan 611730, China; National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Xu Liu
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Institute of Brain Science and Brain-inspired Technology of West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Neurology, Chengdu Shangjin Nanfu Hospital, Chengdu, Sichuan 611730, China; National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Kundian Guo
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Institute of Brain Science and Brain-inspired Technology of West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Neurology, Chengdu Shangjin Nanfu Hospital, Chengdu, Sichuan 611730, China; National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Yuting Yang
- Precision Medicine Institute, The First Affiliated Hospital Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Zhongxin Li
- Precision Medicine Institute, The First Affiliated Hospital Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Hong Wei
- Precision Medicine Institute, The First Affiliated Hospital Sun Yat-sen University, Guangzhou, Guangdong 510080, China
| | - Dong Zhou
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Institute of Brain Science and Brain-inspired Technology of West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Neurology, Chengdu Shangjin Nanfu Hospital, Chengdu, Sichuan 611730, China; National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Zhen Hong
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China; Institute of Brain Science and Brain-inspired Technology of West China Hospital, Sichuan University, Chengdu, Sichuan, China; Department of Neurology, Chengdu Shangjin Nanfu Hospital, Chengdu, Sichuan 611730, China; National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan, China.
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Lu H, Wang Z, Cao B, Cong F, Wang X, Wei W. Dietary sources of branched-chain fatty acids and their biosynthesis, distribution, and nutritional properties. Food Chem 2024; 431:137158. [PMID: 37604010 DOI: 10.1016/j.foodchem.2023.137158] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 08/05/2023] [Accepted: 08/13/2023] [Indexed: 08/23/2023]
Abstract
Branched-chain fatty acids (BCFAs) consist of a wide variety of fatty acids with alkyl branching of methyl group. The most common BCFAs are the types with one methyl group (mmBCFA) on the penultimate carbon (iBCFA) or the antepenultimate carbon (aiBCFA). Long-chain mmBCFAs are widely existing in animal fats, milks and are mostly derived from bacteria in the diet or animal digestive system. Recent studies show that BCFAs benefit human intestinal health and immune homeostasis, but the connection between their content, distribution in the human and their nutritional functions are not well established. In this paper, we reviewed BCFAs from various dietary sources focused on their molecular species. The BCFAs biosynthesis in bacteria, Caenorhabditis elegans, mammals and their distribution in human tissues are summarized. This paper also discusses the nutritional properties of BCFAs including influences on intestinal health, immunoregulatory effects, anti-carcinoma, and anti-obesity activities, by highlighting the most recent research progress.
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Affiliation(s)
- Huijia Lu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Zhen Wang
- Wilmar (Shanghai) Biotechnology Research & Development Center, Shanghai 200137, China; School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Sun Yat-sen University, Shenzhen 518107, China
| | - Bo Cao
- Wilmar (Shanghai) Biotechnology Research & Development Center, Shanghai 200137, China
| | - Fang Cong
- Wilmar (Shanghai) Biotechnology Research & Development Center, Shanghai 200137, China.
| | - Xingguo Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
| | - Wei Wei
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, Wuxi 214122, China.
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Tao N, Ying Y, Xu X, Sun Q, Shu Y, Hu S, Lou Z, Gao J. Th22 is the effector cell of thymosin β15-induced hair regeneration in mice. Inflamm Regen 2024; 44:3. [PMID: 38191481 PMCID: PMC10773137 DOI: 10.1186/s41232-023-00316-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 12/25/2023] [Indexed: 01/10/2024] Open
Abstract
BACKGROUND Thymosin beta family has a significant role in promoting hair regeneration, but which type of T cells play a key role in this process has not been deeply studied. This research aimed to find out the subtypes of T cell that play key role in hair regeneration mediated by thymosin beta 15 (Tβ15). METHODS Ready-to-use adenovirus expressing mouse Tmsb15b (thymosin beta 15 overexpression, Tβ15 OX) and lentivirus-Tβ15 short hairpin RNA (Tβ15 sh) were used to evaluate the role of Tβ15 in hair regeneration and development. The effect of Th22 cells on hair regeneration was further studied by optimized Th22-skewing condition medium and IL-22 binding protein (IL-22BP, an endogenous antagonist of IL-22, also known as IL-22RA2) in both ex vivo culture C57BL/6J mouse skin and BALB/c nude mice transplanted with thymus organoid model. RESULTS The results show that Tβ15, the homologous of Tβ4, can promote hair regeneration by increasing the proliferation activity of hair follicle cells. In addition, high-level expression of Tβ15 can not only increase the number of Th22 cells around hair follicles but also accelerate the transformation of hair follicles to maturity. Consistent with the expected results, when the IL-22BP inhibitor was used to interfere with Th22, the process of hair regeneration was blocked. CONCLUSIONS In conclusion, Th22 is the key effector cell of Tβ15 inducing hair regeneration. Both Tβ15 and Th22 may be the potential drug targets for hair regeneration.
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Affiliation(s)
- Nana Tao
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, People's Republic of China
| | - Yuyuan Ying
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, People's Republic of China
| | - Xie Xu
- The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, People's Republic of China
| | - Qingru Sun
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, People's Republic of China
| | - Yaoying Shu
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, People's Republic of China
| | - Shiyu Hu
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, People's Republic of China
| | - Zhaohuan Lou
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, People's Republic of China.
| | - Jianli Gao
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310053, People's Republic of China.
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Freen-van Heeren JJ. Posttranscriptional Events Orchestrate Immune Homeostasis of CD8 + T Cells. Methods Mol Biol 2024; 2782:65-80. [PMID: 38622392 DOI: 10.1007/978-1-0716-3754-8_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
Maintaining immune homeostasis is instrumental for host health. Immune cells, such as T cells, are instrumental for the eradication of pathogenic bacteria, fungi and viruses. Furthermore, T cells also play a major role in the fight against cancer. Through the formation of immunological memory, a pool of antigen-experienced T cells remains in the body to rapidly protect the host upon reinfection or retransformation. In order to perform their protective function, T cells produce cytolytic molecules, such as granzymes and perforin, and cytokines such as interferon γ and tumor necrosis factor α. Recently, it has become evident that posttranscriptional regulatory events dictate the kinetics and magnitude of cytokine production by murine and human CD8+ T cells. Here, the recent literature regarding the role posttranscriptional regulation plays in maintaining immune homeostasis of antigen-experienced CD8+ T cells is reviewed.
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Kumar V, Stewart JH. Immune Homeostasis: A Novel Example of Teamwork. Methods Mol Biol 2024; 2782:1-24. [PMID: 38622389 DOI: 10.1007/978-1-0716-3754-8_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
All living organisms must maintain homeostasis to survive, reproduce, and pass their traits on to the next generation. If homeostasis is not maintained, it can result in various diseases and ultimately lead to death. Physiologists have coined the term "homeostasis" to describe this process. With the emergence of immunology as a separate branch of medicine, the concept of immune homeostasis has been introduced. Maintaining immune homeostasis is crucial to support overall homeostasis through different immunological and non-immunological routes. Any changes in the immune system can lead to chronic inflammatory or autoimmune diseases, immunodeficiency diseases, frequent infections, and cancers. Ongoing scientific advances are exploring new avenues in immunology and immune homeostasis maintenance. This chapter introduces the concept of immune homeostasis and its maintenance through different mechanisms.
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Affiliation(s)
- Vijay Kumar
- Department of Surgery, Laboratory of Tumor Immunology and Immunotherapy, Medical Education Building-C, Morehouse School of Medicine, Atlanta, GA, USA
| | - John H Stewart
- Department of Surgery, Laboratory of Tumor Immunology and Immunotherapy, Medical Education Building-C, Morehouse School of Medicine, Atlanta, GA, USA.
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Takemasa E, Liu S. Denervation-Induced Sarcopenia Model. Methods Mol Biol 2024; 2766:25-30. [PMID: 38270863 DOI: 10.1007/978-1-0716-3682-4_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2024]
Abstract
Rheumatoid arthritis (RA) is an important risk factor for sarcopenia. Physical inactivity, systemic inflammatory factors, and medication directly or indirectly induce skeletal muscle loss in RA patients. The sarcopenia-induced systemic or local proinflammatory microenvironment also contributes to the onset and progression of autoimmune disease. Accumulated evidence suggests the importance of treatment and management of sarcopenia in patients with RA to improve their long-term prognosis. To elucidate the relationship between skeletal muscle and systemic immune homeostasis, a denervation-induced skeletal muscle-losing mouse model is introduced in this chapter. By developing local amyotrophy in the sciatic nerve-dominant area in a RA model, the underlying mechanism of sarcopenia in RA could be assessed. Also, an examination of the efficacy of anti-rheumatic regents on sarcopenia and the influence of sarcopenia management on RA improvement is also achievable.
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Affiliation(s)
- Erika Takemasa
- Department of Pharmacology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
| | - Shuang Liu
- Department of Pharmacology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan.
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Peng C, Jiang X, Jaeger M, van Houten P, van Herwaarden AE, Koeken VACM, Moorlag SJCFM, Mourits VP, Lemmers H, Dijkstra H, Koenen HJPM, Joosten I, van Cranenbroek B, Li Y, Joosten LAB, Netea MG, Netea-Maier RT, Xu CJ. 11-deoxycortisol positively correlates with T cell immune traits in physiological conditions. EBioMedicine 2024; 99:104935. [PMID: 38134621 PMCID: PMC10776925 DOI: 10.1016/j.ebiom.2023.104935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 12/07/2023] [Accepted: 12/07/2023] [Indexed: 12/24/2023] Open
Abstract
BACKGROUND Endogenous steroid hormones have significant effects on inflammatory and immune processes, but the immunological activities of steroidogenesis precursors remain largely unexplored. METHODS We conducted a systematic approach to examine the association between steroid hormones profile and immune traits in a cohort of 534 healthy volunteers. Serum concentrations of steroid hormones and their precursors (cortisol, progesterone, testosterone, androstenedione, 11-deoxycortisol and 17-OH progesterone) were determined by liquid chromatography-tandem mass spectrometry. Immune traits were evaluated by quantifying cellular composition of the circulating immune system and ex vivo cytokine responses elicited by major human pathogens and microbial ligands. An independent cohort of 321 individuals was used for validation, followed by in vitro validation experiments. FINDINGS We observed a positive association between 11-deoxycortisol and lymphoid cellular subsets numbers and function (especially IL-17 response). The association with lymphoid cellularity was validated in an independent validation cohort. In vitro experiments showed that, as compared to androstenedione and 17-OH progesterone, 11-deoxycortisol promoted T cell proliferation and Candida-induced Th17 polarization at physiologically relevant concentrations. Functionally, 11-deoxycortisol-treated T cells displayed a more activated phenotype (PD-L1high CD25high CD62Llow CD127low) in response to CD3/CD28 co-stimulation, and downregulated expression of T-bet nuclear transcription factor. INTERPRETATION Our findings suggest a positive association between 11-deoxycortisol and T-cell function under physiological conditions. Further investigation is needed to explore the potential mechanisms and clinical implications. FUNDING Found in acknowledgements.
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Affiliation(s)
- Chunying Peng
- Division of Endocrinology, Department of Internal Medicine, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Xun Jiang
- Centre for Individualised Infection Medicine (CiiM), A Joint Venture Between the Helmholtz-Centre for Infection Research (HZI) and Hannover Medical School (MHH), Hannover, Germany; TWINCORE, Centre for Experimental and Clinical Infection Research, A Joint Venture Between the Helmholtz-Centre for Infection Research (HZI) and Hannover Medical School (MHH), Hannover, Germany
| | - Martin Jaeger
- Division of Endocrinology, Department of Internal Medicine, Radboud University Medical Center, Nijmegen, the Netherlands; Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Pepijn van Houten
- Division of Endocrinology, Department of Internal Medicine, Radboud University Medical Center, Nijmegen, the Netherlands
| | | | - Valerie A C M Koeken
- Centre for Individualised Infection Medicine (CiiM), A Joint Venture Between the Helmholtz-Centre for Infection Research (HZI) and Hannover Medical School (MHH), Hannover, Germany; TWINCORE, Centre for Experimental and Clinical Infection Research, A Joint Venture Between the Helmholtz-Centre for Infection Research (HZI) and Hannover Medical School (MHH), Hannover, Germany; Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, the Netherlands; Research Centre Innovations in Care, Rotterdam University of Applied Science, Rotterdam, the Netherlands
| | - Simone J C F M Moorlag
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Vera P Mourits
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Heidi Lemmers
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Helga Dijkstra
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Hans J P M Koenen
- Laboratory Medical Immunology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Irma Joosten
- Laboratory Medical Immunology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Bram van Cranenbroek
- Laboratory Medical Immunology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Yang Li
- Centre for Individualised Infection Medicine (CiiM), A Joint Venture Between the Helmholtz-Centre for Infection Research (HZI) and Hannover Medical School (MHH), Hannover, Germany; TWINCORE, Centre for Experimental and Clinical Infection Research, A Joint Venture Between the Helmholtz-Centre for Infection Research (HZI) and Hannover Medical School (MHH), Hannover, Germany; Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Leo A B Joosten
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, the Netherlands; Department of Medical Genetics, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Mihai G Netea
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Romana T Netea-Maier
- Division of Endocrinology, Department of Internal Medicine, Radboud University Medical Center, Nijmegen, the Netherlands.
| | - Cheng-Jian Xu
- Centre for Individualised Infection Medicine (CiiM), A Joint Venture Between the Helmholtz-Centre for Infection Research (HZI) and Hannover Medical School (MHH), Hannover, Germany; TWINCORE, Centre for Experimental and Clinical Infection Research, A Joint Venture Between the Helmholtz-Centre for Infection Research (HZI) and Hannover Medical School (MHH), Hannover, Germany; Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, the Netherlands.
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10
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Wu C, Jiang ML, Pang T, Zhang CJ. T Cell Subsets and Immune Homeostasis. Methods Mol Biol 2024; 2782:39-63. [PMID: 38622391 DOI: 10.1007/978-1-0716-3754-8_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
T cells are a heterogeneous group of cells that can be classified into different subtypes according to different classification methods. The body's immune system has a highly complex and effective regulatory network that allows for the relative stability of immune system function. Maintaining proper T cell homeostasis is essential for promoting protective immunity and limiting autoimmunity and tumor formation. Among the T cell family members, more and more T cell subsets have gradually been characterized. In this chapter, we summarize the functions of some key T cell subsets and their impact on immune homeostasis.
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Affiliation(s)
- Chuyu Wu
- Department of Neurology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Screening, Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, China Pharmaceutical University, Nanjing, China
| | - Mei-Ling Jiang
- Department of Neurology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Tao Pang
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Screening, Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, China Pharmaceutical University, Nanjing, China
| | - Cun-Jin Zhang
- Department of Neurology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
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11
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Tang D, Xu H, Du X. The role of non-canonical Hippo pathway in regulating immune homeostasis. Eur J Med Res 2023; 28:498. [PMID: 37941053 PMCID: PMC10631157 DOI: 10.1186/s40001-023-01484-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 10/30/2023] [Indexed: 11/10/2023] Open
Abstract
The Hippo pathway is a crucial signaling pathway that is highly conserved throughout evolution for the regulation of organ size and maintenance of tissue homeostasis. Initial studies have primarily focused on the canonical Hippo pathway, which governs organ development, tissue regeneration, and tumorigenesis. In recent years, extensive research has revealed that the non-canonical Hippo pathway, centered around Mst1/2 as its core molecule, plays a pivotal role in immune response and function by synergistically interacting with other signal transduction pathways. Consequently, the non-canonical Hippo pathway assumes significant importance in maintaining immune system homeostasis. This review concentrates on the research progress of the non-canonical Hippo pathway in regulating innate immune cell anti-infection responses, maintaining redox homeostasis, responding to microenvironmental stiffness, and T-cell differentiation.
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Affiliation(s)
- Dagang Tang
- Department of Orthopedics, Chongqing Traditional Chinese Medicine Hospital, Chongqing, 400021, China
| | - Huan Xu
- Department of Ophtalmology, Daping Hospital, Army Medical University, Chongqing, 400012, China
| | - Xing Du
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, No.1 YouYi Road, Yuanjiagang, Yu Zhong District, Chongqing, 400016, China.
- Orthopedic Laboratory of Chongqing Medical University, Chongqing, 400016, China.
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12
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Pan W, Yao X, Lin L, Liu X, Jin P, Ma F. The Relish/miR-275/Dredd mediated negative feedback loop is crucial to restoring immune homeostasis of Drosophila Imd pathway. Insect Biochem Mol Biol 2023; 162:104013. [PMID: 37804878 DOI: 10.1016/j.ibmb.2023.104013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 09/13/2023] [Accepted: 09/25/2023] [Indexed: 10/09/2023]
Abstract
The NF-κB/Relish, as a core transcription factor of Drosophila immune deficiency (Imd) pathway, activates the transcriptions of antimicrobial peptides (AMPs) to combat gram-negative bacterial infections, but its role in regulating miRNA expression during immune response has less been reported. We here describe a negative feedback loop of Imd signaling mediated by Relish/miR-275/Dredd that controls Drosophila immune homeostasis after Escherichia coli (E. coli) infection. Our results demonstrate that Relish may directly activate the transcription of miR-275 via binding to its promoter in vitro and vivo, particularly miR-275 further inhibits the expression of Dredd through binding to its 3'UTR to negatively control Drosophila Imd immune response. Remarkably, the ectopic expression of miR-275 significantly reduces Drosophila lifespan. More importantly, our work uncovers a new mechanism by which Relish can flexibly switch its role to maintain Drosophila immune response and homeostasis during infection. Collectively, our study not only reveals the functional duality of Relish in regulating immune response of Drosophila Imd pathway, but also provides a new insight into the maintenance of animal innate immune homeostasis.
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Affiliation(s)
- Wanwan Pan
- Laboratory for Comparative Genomics and Bioinformatics & Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Science, Nanjing Normal University, Nanjing, 210046, China
| | - Xiaolong Yao
- Laboratory for Comparative Genomics and Bioinformatics & Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Science, Nanjing Normal University, Nanjing, 210046, China
| | - Lu Lin
- Laboratory for Comparative Genomics and Bioinformatics & Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Science, Nanjing Normal University, Nanjing, 210046, China
| | - Xiaoqi Liu
- Laboratory for Comparative Genomics and Bioinformatics & Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Science, Nanjing Normal University, Nanjing, 210046, China
| | - Ping Jin
- Laboratory for Comparative Genomics and Bioinformatics & Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Science, Nanjing Normal University, Nanjing, 210046, China.
| | - Fei Ma
- Laboratory for Comparative Genomics and Bioinformatics & Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Science, Nanjing Normal University, Nanjing, 210046, China.
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13
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Fan HM, Qiao YL, Liu Y, Xu S, Ni HF, Jiao WE, Tao ZZ, Chen SM. Long-term consequences of regulatory T-cell-specific knockout of Notch2 in immune homeostasis. Int Immunopharmacol 2023; 124:111069. [PMID: 37852117 DOI: 10.1016/j.intimp.2023.111069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Revised: 10/01/2023] [Accepted: 10/10/2023] [Indexed: 10/20/2023]
Abstract
AIMS To investigate the long-term alterations in immune function and spontaneous inflammation in mice following specific knockout of Notch2 (Notch2KO) in Treg cells. MAIN METHODS A Treg cell-specific Notch2 knockout mouse model was constructed, and the mice were named Notch2KO mice. The pathological changes and inflammatory cell infiltration in the lungs, skin, and liver of the mice at 2, 6, 9, and 12 months of age were evaluated by HE staining. The expression of Th1/Th2/Th17/Treg transcription factors was detected by Western blotting. The proportion of CD4 + T-cell subsets was determined by flow cytometry. The levels of Th1/Th2/Th17/Treg cytokines were measured by enzyme-linked immunosorbent assays (ELISAs). KEY FINDINGS The expression level of Notch2 in Treg cells from the Notch2KO mice was significantly decreased compared with that in Treg cells from the control mice (P < 0.05). HE staining showed that compared with the control mice, the Notch2KO mice displayed spontaneous inflammation and had a large amount of inflammatory cell infiltration in the lungs and skin (P < 0.05). The number of Treg cells, the expression level of Foxp3, and the level of IL-10 were reduced in the Notch2KO mice compared with the control mice (P < 0.05), and these metrics further decreased with increasing age (P < 0.05). In contrast, the number of Th1/Th2 cells, the expression level of T-bet/GATA3, and the levels of Th1 cytokines (IFN-γ)/Th2 cytokines (IL-4, IL-5, and IL-13) were significantly increased in the Notch2KO mice (P < 0.05), and these metrics further increased with increasing age (P < 0.05). There was no significant change in the number of Th17 cells, the expression of RORγt, or the level of IL-17. Further analysis showed that the balance of Th1/Th2 and Treg/Th17 cells in the Notch2KO mice was shifted, and the ratio showed a downward trend over time (P < 0.05). SIGNIFICANCE The number and function of Treg cells can be severely inhibited by a specific knockout of Notch2 in Treg cells, leading to immune disorders that gradually worsen over time.
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Affiliation(s)
- Hui-Ming Fan
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei 430060, PR China
| | - Yue-Long Qiao
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei 430060, PR China
| | - Yan Liu
- Department of Nursing, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei 430060, PR China
| | - Shan Xu
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei 430060, PR China
| | - Hai-Feng Ni
- Department of Otolaryngology Head and Neck Surgery, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310006, PR China
| | - Wo-Er Jiao
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei 430060, PR China
| | - Ze-Zhang Tao
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei 430060, PR China; Institute of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei 430060, PR China
| | - Shi-Ming Chen
- Department of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei 430060, PR China; Institute of Otolaryngology-Head and Neck Surgery, Renmin Hospital of Wuhan University, 238 Jie-Fang Road, Wuhan, Hubei 430060, PR China.
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14
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Han M, Geng J, Zhang S, Rao J, Zhu Y, Xu S, Wang F, Ma F, Zhou M, Zhou H. Invariant natural killer T cells drive hepatic homeostasis in nonalcoholic fatty liver disease via sustained IL-10 expression in CD170 + Kupffer cells. Eur J Immunol 2023; 53:e2350474. [PMID: 37489253 DOI: 10.1002/eji.202350474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 07/05/2023] [Accepted: 07/24/2023] [Indexed: 07/26/2023]
Abstract
Kupffer cells (KCs) are liver-resident macrophages involved in hepatic inflammatory responses, including nonalcoholic fatty liver disease (NAFLD) development. However, the contribution of KC subsets to liver inflammation remains unclear. Here, using high-dimensional single-cell RNA sequencing, we characterized murine embryo-derived KCs and identified two KC populations with different gene expression profiles: KC-1 and KC-2. KC-1 expressed CD170, exhibiting immunoreactivity and immune-regulatory abilities, while KC-2 highly expressed lipid metabolism-associated genes. In a high-fat diet-induced NAFLD model, KC-1 cells differentiated into pro-inflammatory phenotypes and initiated more frequent communications with invariant natural killer T (iNKT) cells. In KC-1, interleukin (IL)-10 expression was unaffected by the high-fat diet but impaired by iNKT cell ablation and upregulated by iNKT cell adoptive transfer in vivo. Moreover, in a cellular co-culture system, primary hepatic iNKT cells promoted IL-10 expression in RAW264.7 and primary KC-1 cells. CD206 signal blocking in KC-1 or CD206 knockdown in RAW264.7 cells significantly reduced IL-10 expression. In conclusion, we identified two embryo-derived KC subpopulations with distinct transcriptional profiles. The CD206-mediated crosstalk between iNKT and KC-1 cells maintains IL-10 expression in KC-1 cells, affecting hepatic immune balance. Therefore, KC-based therapeutic strategies must consider cellular heterogeneity and the local immune microenvironment for enhanced specificity and efficiency.
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Affiliation(s)
- Mutian Han
- Department of Immunology, College of Basic Medical Science, Anhui Medical University, Anhui, China
| | - Jinke Geng
- Department of Immunology, College of Basic Medical Science, Anhui Medical University, Anhui, China
| | - Shuangshuang Zhang
- Department of Immunology, College of Basic Medical Science, Anhui Medical University, Anhui, China
| | - Jia Rao
- Department of Immunology, College of Basic Medical Science, Anhui Medical University, Anhui, China
| | - Yansong Zhu
- Department of Cell and Biology, College of Life Sciences, Anhui Medical University, Anhui, China
| | - Shaodong Xu
- Department of Cell and Biology, College of Life Sciences, Anhui Medical University, Anhui, China
| | - Fei Wang
- Department of Immunology, College of Basic Medical Science, Anhui Medical University, Anhui, China
| | - Fang Ma
- Center for Scientific Research, Anhui Medical University, Anhui, China
| | - Meng Zhou
- Department of Cell and Biology, College of Life Sciences, Anhui Medical University, Anhui, China
| | - Hong Zhou
- Department of Immunology, College of Basic Medical Science, Anhui Medical University, Anhui, China
- Department of Cell and Biology, College of Life Sciences, Anhui Medical University, Anhui, China
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15
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Gao J, Zhang H, Zhang F. Research progress of TIPE2 in immune-related diseases. Int Immunopharmacol 2023; 121:110514. [PMID: 37348234 DOI: 10.1016/j.intimp.2023.110514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 06/02/2023] [Accepted: 06/13/2023] [Indexed: 06/24/2023]
Abstract
The tumor necrosis factor α-induced protein 8 (TNFAIP8) family, which consists of TNFAIP8 (TIPE), TNFAIP8L1 (TIPE1), TNFAIP8L2 (TIPE2) and TNFAIP8L3 (TIPE3), has recently emerged as a regulatory factor involved in immune response and tumorigenesis. Among its members, TIPE2 acts as a negative regulator of both innate and adaptive immunity, playing a crucial role in maintaining immune homeostasis by negatively regulating T cell receptor (TCR) and toll-like receptor (TLR) signal transduction. Immune homeostasis is an indispensable characteristic of the immune system, which prevents harmful inflammatory reactions and ensures the proper functioning of the body. A large number of studies have shown that abnormal TIPE2 expression exists in a variety of inflammation-related diseases such as asthma, colitis, and systemic lupus erythematosus, highlighting the importance of comprehending its function for the prevention and treatment of immune-related conditions. This review aims to provide an overview of the in vivo distribution and expression of TIPE2, its regulatory role in central and peripheral immune-related diseases, and the underlying mechanisms that govern its function in the inflammatory response. By delving into these aspects, a deeper understanding of the role and functionality of TIPE2 in inflammatory responses can be achieved.
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Affiliation(s)
- Jie Gao
- Department of Pharmacology, Qingdao University School of Pharmacy, Qingdao 266000, China.
| | - Hanting Zhang
- Department of Pharmacology, Qingdao University School of Pharmacy, Qingdao 266000, China.
| | - Fang Zhang
- Department of Pharmacology, Qingdao University School of Pharmacy, Qingdao 266000, China.
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16
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Thapa S, Cao X. Nervous regulation: beta-2-adrenergic signaling in immune homeostasis, cancer immunotherapy, and autoimmune diseases. Cancer Immunol Immunother 2023; 72:2549-2556. [PMID: 37060364 PMCID: PMC10693916 DOI: 10.1007/s00262-023-03445-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 04/03/2023] [Indexed: 04/16/2023]
Abstract
Beta-2-adrenergic receptor (β2-AR) mediates neural signaling from the sympathetic nervous system (SNS) to the immune system to modulate immunogenic and immunosuppressive responses for maintaining immune homeostasis. β2-AR regulates various cellular activities on the innate and adaptive immune cells through differential signaling to modulate activation, proliferation, differentiation, and cytokine production. This signaling pathway has been found to be critical for regulating anti-tumor immune responses and autoimmune responses. Recently, β2-AR has also been implicated in the mobilization of immune cells in peripheral blood and ex-vivo expansion of cytotoxic T cells from donor blood that has clinical implications for improving cancer immunotherapy. This review attempts to provide a comprehensive overview of the established and emerging roles of β2-AR signaling in immune homeostasis, cancer immunotherapy, and autoimmune diseases.
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Affiliation(s)
- Sagarina Thapa
- Marlene and Stewart Greenebaum Comprehensive Cancer Center, University of Maryland Baltimore, Baltimore, MD, 21201, USA
| | - Xuefang Cao
- Marlene and Stewart Greenebaum Comprehensive Cancer Center, University of Maryland Baltimore, Baltimore, MD, 21201, USA.
- Department of Microbiology and Immunology, School of Medicine, University of Maryland Baltimore, Baltimore, MD, USA.
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17
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Liu F, Wang Y, Lyu K, Du X, Zhou M, Shi J, Na R, Guo Y, Wang G, Xu W, Tongsen Z. Acupuncture & its ability to restore and maintain immune homeostasis. QJM 2023:hcad134. [PMID: 37318994 DOI: 10.1093/qjmed/hcad134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 05/31/2023] [Indexed: 06/17/2023] Open
Abstract
Immune homeostasis is a steady immune state that not only protects the host from pathogens but also prevents the emergence of pathological self-reactive immune cells. The disruption of immune homeostasis leads to the development of various diseases, such as cancer and autoimmune diseases. An emerging paradigm for the treatment of these diseases with dysfunctional immune systems is the restoration and maintenance of immune homeostasis. However, currently available drugs exert a unidirectional influence on immunity whereby they either augment or inhibit it. This strategy is associated with the drawback of potential adverse effects arising from uncontrolled activation or suppression of the immune system. Fortunately, evidence suggests that acupuncture can bi-directionally regulate the immune system to maintain immune homeostasis. In cases of immunosuppressive diseases (e.g., cancer), acupuncture has an enhancing effect on immunity. Conversely, in autoimmune diseases (e.g., rheumatoid arthritis), acupuncture has been observed to have an immunosuppressive effect, which helps restore normal immune tolerance. However, there is no publication systematically summarising the bidirectional regulatory effects of acupuncture on the immune system in the literature. Here, our review provides a comprehensive overview of the various mechanisms through which acupuncture modulates the immune system in a bidirectional manner. These mechanisms include the augmentation of NK and CD8+T cell function, as well as the restoration of Th1/Th2, Th17/Treg, and M1/M2 balance. Thus, we propose the concept that acupuncture has the potential to alleviate illnesses through the facilitation of immune normalization. Moreover, we further highlight the therapeutic potential of acupuncture.
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Affiliation(s)
- Fengyi Liu
- Department of Integrated Traditional Chinese and Western Medicine, First Affiliated Hospital of Harbin Medical University, Harbin, 150001, P. R. China
- Heilongjiang University of Chinese Medicine, No.24, Heping Road, Xiangfang District, Harbin, 150040, P. R. China
| | - Yuan Wang
- Department of Gastrointestinal Medical Oncology, Harbin Medical University Cancer Hospital, No. 150 Haping Road, Nangang District, Harbin, 150081, P. R. China
- Department of Phase 1 Trials Center, Harbin Medical University Cancer Hospital, No. 150 Haping Road, Nangang District, Harbin, 150081, P. R. China
- Heilongjiang Province Key Laboratory of Molecular Oncology, No. 150 Haping Road, Nangang District, Harbin, 150081, P. R. China, Heilongjiang Province
| | - Kun Lyu
- Department of Integrated Traditional Chinese and Western Medicine, First Affiliated Hospital of Harbin Medical University, Harbin, 150001, P. R. China
| | - Xiaoxue Du
- Department of Gastrointestinal Medical Oncology, Harbin Medical University Cancer Hospital, No. 150 Haping Road, Nangang District, Harbin, 150081, P. R. China
- Heilongjiang Province Key Laboratory of Molecular Oncology, No. 150 Haping Road, Nangang District, Harbin, 150081, P. R. China, Heilongjiang Province
| | - Meng Zhou
- Department of Gastrointestinal Medical Oncology, Harbin Medical University Cancer Hospital, No. 150 Haping Road, Nangang District, Harbin, 150081, P. R. China
- Department of Phase 1 Trials Center, Harbin Medical University Cancer Hospital, No. 150 Haping Road, Nangang District, Harbin, 150081, P. R. China
- Heilongjiang Province Key Laboratory of Molecular Oncology, No. 150 Haping Road, Nangang District, Harbin, 150081, P. R. China, Heilongjiang Province
| | - Jiaqi Shi
- Department of Phase 1 Trials Center, Harbin Medical University Cancer Hospital, No. 150 Haping Road, Nangang District, Harbin, 150081, P. R. China
- Heilongjiang Province Key Laboratory of Molecular Oncology, No. 150 Haping Road, Nangang District, Harbin, 150081, P. R. China, Heilongjiang Province
| | - Ruisi Na
- Department of Gastrointestinal Medical Oncology, Harbin Medical University Cancer Hospital, No. 150 Haping Road, Nangang District, Harbin, 150081, P. R. China
- Department of Phase 1 Trials Center, Harbin Medical University Cancer Hospital, No. 150 Haping Road, Nangang District, Harbin, 150081, P. R. China
- Heilongjiang Province Key Laboratory of Molecular Oncology, No. 150 Haping Road, Nangang District, Harbin, 150081, P. R. China, Heilongjiang Province
| | - Ying Guo
- Heilongjiang Province Key Laboratory of Molecular Oncology, No. 150 Haping Road, Nangang District, Harbin, 150081, P. R. China, Heilongjiang Province
| | - Guangyu Wang
- Department of Gastrointestinal Medical Oncology, Harbin Medical University Cancer Hospital, No. 150 Haping Road, Nangang District, Harbin, 150081, P. R. China
| | - Wei Xu
- Department of Integrated Traditional Chinese and Western Medicine, First Affiliated Hospital of Harbin Medical University, Harbin, 150001, P. R. China
| | - Zheng Tongsen
- Department of Gastrointestinal Medical Oncology, Harbin Medical University Cancer Hospital, No. 150 Haping Road, Nangang District, Harbin, 150081, P. R. China
- Department of Phase 1 Trials Center, Harbin Medical University Cancer Hospital, No. 150 Haping Road, Nangang District, Harbin, 150081, P. R. China
- Heilongjiang Province Key Laboratory of Molecular Oncology, No. 150 Haping Road, Nangang District, Harbin, 150081, P. R. China, Heilongjiang Province
- Heilongjiang Cancer Institute, No. 150 Haping Road, Nangang District, Harbin, 150081, P. R. China
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18
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Gan L, Zhao Y, Fu Y, Chen Q. The potential role of m6A modifications on immune cells and immunotherapy. Biomed Pharmacother 2023; 160:114343. [PMID: 36758318 DOI: 10.1016/j.biopha.2023.114343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/27/2023] [Accepted: 01/29/2023] [Indexed: 02/10/2023] Open
Abstract
N6-methyladenosine (m6A), is the most prevalent and reversible post-transcriptional epigenetic modification of RNA in mammals. Dysregulation of m6A modifications impacts RNA procession, degradation, translocation, and translation, disrupting immune cell homeostasis and promoting tumor initiation and development. Here, we discuss an -up-to-date summary of the mechanisms by which m6A modifications regulate immune cell anti-tumor as well as self-homeostasis. We also present how the dysregulation of m6A modifications intrinsic to tumor cells regulates the function of immune cells in the tumor microenvironment. Meanwhile, we described some specific inhibitors targeting m6A modulators and discussed their potential use in cancer treatments.
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Affiliation(s)
- Linchuan Gan
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, College of Life Science, Fujian Normal University Qishan Campus, College Town, Fuzhou, Fujian Province 350117, PR China
| | - Yuxiang Zhao
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, College of Life Science, Fujian Normal University Qishan Campus, College Town, Fuzhou, Fujian Province 350117, PR China
| | - Yajuan Fu
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, College of Life Science, Fujian Normal University Qishan Campus, College Town, Fuzhou, Fujian Province 350117, PR China.
| | - Qi Chen
- Fujian Key Laboratory of Innate Immune Biology, Biomedical Research Center of South China, College of Life Science, Fujian Normal University Qishan Campus, College Town, Fuzhou, Fujian Province 350117, PR China.
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19
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Wang H, Li C, Ren G, Yang C, Sun J, Zhao L, Sun W, Ju J, Xu D. Updated insight into the role of Th2-associated immunity in systemic lupus erythematosus. Autoimmun Rev 2023; 22:103213. [PMID: 36252932 DOI: 10.1016/j.autrev.2022.103213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 10/11/2022] [Indexed: 12/27/2022]
Abstract
Systemic lupus erythematosus (SLE) is an autoimmune disease with multiple organs involvement, abundant autoantibodies, complement activation, and immune complexes depositions. By regulating inflammation and immune homeostasis, cytokines have been well documented to participate in the pathogenesis of SLE. A number of studies have shown that T helper 2 (Th2)-associated immunity plays an important role in autoimmune diseases, including SLE. Key molecules underlying Th2-related immunity are expected to serve as promising targets for the diagnosis and targeted treatment of SLE. Current progress in SLE pathogenesis and biological treatment strategies has been reviewed, focusing on the latest development in Th2-associated immunity.
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Affiliation(s)
- Hui Wang
- Central Laboratory of the First Affiliated Hospital, Weifang Medical University, Weifang 261000, China
| | - Chaoran Li
- Department of Rheumatology of the First Affiliated Hospital, Weifang Medical University, Weifang 261000, China
| | - Guifang Ren
- Hospital Office of the First Affiliated Hospital, Weifang Medical University, Weifang 261000, China
| | - Chunjuan Yang
- Department of Rheumatology of the First Affiliated Hospital, Weifang Medical University, Weifang 261000, China
| | - Jiamei Sun
- Central Laboratory of the First Affiliated Hospital, Weifang Medical University, Weifang 261000, China
| | - Lu Zhao
- Central Laboratory of the First Affiliated Hospital, Weifang Medical University, Weifang 261000, China
| | - Wenchang Sun
- Central Laboratory of the First Affiliated Hospital, Weifang Medical University, Weifang 261000, China
| | - Jiyu Ju
- Department of Immunology, Weifang Medical University, Weifang 261053, China.
| | - Donghua Xu
- Central Laboratory of the First Affiliated Hospital, Weifang Medical University, Weifang 261000, China; Department of Rheumatology of the First Affiliated Hospital, Weifang Medical University, Weifang 261000, China.
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20
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Wang H, Wang LL, Zhao SJ, Lin XX, Liao AH. IL-10: A bridge between immune cells and metabolism during pregnancy. J Reprod Immunol 2022; 154:103750. [PMID: 36156316 DOI: 10.1016/j.jri.2022.103750] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 08/06/2022] [Accepted: 09/14/2022] [Indexed: 12/14/2022]
Abstract
Energy metabolism plays a crucial role in the immune system. In addition to providing vital energy for cell growth, reproduction and other cell activities, the metabolism of nutrients such as glucose and lipids also have significant effects on cell function through metabolites, metabolic enzymes, and changing metabolic status. Interleukin-10 (IL-10), as a pleiotropic regulator, can be secreted by a diverse set of cells and can also participate in regulating the functions of various cells, thereby playing an essential role in the formation and maintenance of immune tolerance in pregnancy. Studies on the regulatory effects and mechanisms of IL-10 on immune cells are extensive; however, research from a metabolic perspective is relatively negligible. Here, we have discussed old and new data on the relationship between IL-10 and metabolism. The data show that alterations in cellular metabolism and specific metabolites regulate IL-10 production of immune cells. Moreover, IL-10 regulates immune cell phenotypes and functions by modulating oxidative phosphorylation and glycolysis. This review summarizes some earlier observations regarding IL-10 and its relationship with immune cells in pregnancy, and also presents recent research on the link between IL-10 and metabolism, highlighting the potential relationship between IL-10, immune cells, and energy metabolism during pregnancy.
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21
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Yu DY, Oh SH, Kim IS, Kim GI, Kim JA, Moon YS, Jang JC, Lee SS, Jung JH, Park J, Cho KK. Intestinal microbial composition changes induced by Lactobacillus plantarum GBL 16, 17 fermented feed and intestinal immune homeostasis regulation in pigs. J Anim Sci Technol 2022; 64:1184-1198. [PMID: 36812041 PMCID: PMC9890339 DOI: 10.5187/jast.2022.e89] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 10/18/2022] [Accepted: 10/19/2022] [Indexed: 12/14/2022]
Abstract
In this study, Rubus coreanus (R. coreanus) byproducts with high polyphenol content were fermented with R. coreanus-derived lactic acid bacteria (Lactobacillus plantarum GBL 16 and 17). Then the effect of R. coreanus-derived lactic acid bacteria fermented feed (RC-LAB fermented feed) with probiotics (Bacillus subtills, Aspergillus oryzae, Yeast) as a feed additive for pigs on the composition of intestinal microbes and the regulation of intestinal immune homeostasis was investigated. Seventy-two finishing Berkshire pigs were randomly allotted to four different treatment groups and 18 replicates. RC-LAB fermented feed with probiotics increased the genera Lactobacillus, Streptococcus, Mitsuokella, Prevotella, Bacteroides spp., Roseburia spp., and Faecalibacterium prausnitzii, which are beneficial bacteria of the digestive tract of pigs. Also, RC-LAB fermented feed with probiotics decreased the genera Clostridium, Terrisporobacter, Romboutsia, Kandleria, Megasphaera and Escherichia, which are harmful bacteria. In particular, the relative abundance of the genera Lactobacillus and Streptococcus increased by an average of 8.51% and 4.68% in the treatment groups and the classes Clostridia and genera Escherichia decreased by an average of 27.05% and 2.85% in the treatment groups. In mesenteric lymph nodes (MLN) and spleens, the mRNA expression of transcription factors and cytokines in Th1 and Treg cells increased and the mRNA expression of Th2 and Th17 transcription factors and cytokines decreased, indicating a regulatory effect on intestinal immune homeostasis. RC-LAB fermented feed regulates gut immune homeostasis by influencing the composition of beneficial and detrimental microorganisms in the gut and regulating the balance of Th1/Th2 and Th17/Treg cells.
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Affiliation(s)
- Da Yoon Yu
- Division of Animal Science, Gyeongsang
National University, Jinju 52725, Korea
| | - Sang-Hyon Oh
- Division of Animal Science, Gyeongsang
National University, Jinju 52725, Korea
| | - In Sung Kim
- Division of Animal Science, Gyeongsang
National University, Jinju 52725, Korea
| | - Gwang Il Kim
- Division of Animal Science, Gyeongsang
National University, Jinju 52725, Korea
| | - Jeong A Kim
- Division of Animal Science, Gyeongsang
National University, Jinju 52725, Korea
| | - Yang Soo Moon
- Division of Animal Bioscience &
Integrated Biotechnology, Gyeongsang National University,
Jinju 52725, Korea
| | - Jae Cheol Jang
- Division of Animal Science, Gyeongsang
National University, Jinju 52725, Korea
| | - Sang Suk Lee
- Department of Animal Science and
Technology, Sunchon National University, Sunchon 57922,
Korea
| | | | - Jun Park
- Department of Animal Biotechnology,
Jeonbok National University, Jeonju 54896, Korea
| | - Kwang Keun Cho
- Division of Animal Science, Gyeongsang
National University, Jinju 52725, Korea,Corresponding author: Kwang Keun Cho
Division of Animal Science, Gyeongsang National University, Jinju 52725, Korea.
Tel: +82-55-772-3286 E-mail:
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22
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Wang H, Yin H, Zhong Y, Hu J, Xia S, Wang Z, Nie S, Xie M. Polysaccharides from fermented coix seed modulates circulating nitrogen and immune function by altering gut microbiota. Curr Res Food Sci 2022; 5:1994-2003. [PMID: 36324864 PMCID: PMC9619149 DOI: 10.1016/j.crfs.2022.10.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 08/24/2022] [Accepted: 10/06/2022] [Indexed: 11/06/2022] Open
Abstract
Coix lachryma-jobi L. seed is an important food item in Asia with culinary and medicinal values. The effects of non-fermented coix seed (NFC), fermented coix seed with Lactobacillus plantarum NCU137 (FC) and polysaccharides from NFC, FC (FCP) on mice circulating nitrogen and immune disorder induced by high relative humidity (RH, 90 ± 2%) exposure were compared. All the treatments reduced circulating nitrogen (BUN and ammonia) might via increasing excretion of fecal nitrogen induced by altering gut microbiota. In comparison, FC and FCP restored erythrocyte morphology by promoting erythrocyte Na+/K+ ATPase activity more effectively, and immune function was modulated by reducing plasma IgM and IFN-γ levels, up-regulating IL-4 and IL-6 levels. Herein, these results indicated that FCP, as the main active ingredient in FC, modulated circulating nitrogen through altering gut microbiota, and restored immune homeostasis by regulating Th1/Th2 cytokines in mice receiving high RH exposure.
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Affiliation(s)
- Hui Wang
- State Key Laboratory of Food Science and Technology, China-Canada Joint Laboratory of Food Science and Technology (Nanchang), Key Laboratory of Bioactive Polysaccharides of Jiangxi Province, Nanchang University, 235 Nanjing East Road, Nanchang, Jiangxi, 330047, China
| | - Hongmei Yin
- State Key Laboratory of Food Science and Technology, China-Canada Joint Laboratory of Food Science and Technology (Nanchang), Key Laboratory of Bioactive Polysaccharides of Jiangxi Province, Nanchang University, 235 Nanjing East Road, Nanchang, Jiangxi, 330047, China,School of Health, Jiangxi Normal University, 99 Ziyang Avenue, Nanchang, Jiangxi, 330022, China
| | - Yadong Zhong
- State Key Laboratory of Food Science and Technology, China-Canada Joint Laboratory of Food Science and Technology (Nanchang), Key Laboratory of Bioactive Polysaccharides of Jiangxi Province, Nanchang University, 235 Nanjing East Road, Nanchang, Jiangxi, 330047, China
| | - Jielun Hu
- State Key Laboratory of Food Science and Technology, China-Canada Joint Laboratory of Food Science and Technology (Nanchang), Key Laboratory of Bioactive Polysaccharides of Jiangxi Province, Nanchang University, 235 Nanjing East Road, Nanchang, Jiangxi, 330047, China
| | - Shengkun Xia
- State Key Laboratory of Food Science and Technology, China-Canada Joint Laboratory of Food Science and Technology (Nanchang), Key Laboratory of Bioactive Polysaccharides of Jiangxi Province, Nanchang University, 235 Nanjing East Road, Nanchang, Jiangxi, 330047, China
| | - Zixuan Wang
- State Key Laboratory of Food Science and Technology, China-Canada Joint Laboratory of Food Science and Technology (Nanchang), Key Laboratory of Bioactive Polysaccharides of Jiangxi Province, Nanchang University, 235 Nanjing East Road, Nanchang, Jiangxi, 330047, China
| | - Shaoping Nie
- State Key Laboratory of Food Science and Technology, China-Canada Joint Laboratory of Food Science and Technology (Nanchang), Key Laboratory of Bioactive Polysaccharides of Jiangxi Province, Nanchang University, 235 Nanjing East Road, Nanchang, Jiangxi, 330047, China
| | - Mingyong Xie
- State Key Laboratory of Food Science and Technology, China-Canada Joint Laboratory of Food Science and Technology (Nanchang), Key Laboratory of Bioactive Polysaccharides of Jiangxi Province, Nanchang University, 235 Nanjing East Road, Nanchang, Jiangxi, 330047, China,Corresponding author.
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23
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Sun Z, Song ZG, Liu C, Tan S, Lin S, Zhu J, Dai FH, Gao J, She JL, Mei Z, Lou T, Zheng JJ, Liu Y, He J, Zheng Y, Ding C, Qian F, Zheng Y, Chen YM. Gut microbiome alterations and gut barrier dysfunction are associated with host immune homeostasis in COVID-19 patients. BMC Med 2022; 20:24. [PMID: 35045853 PMCID: PMC8769945 DOI: 10.1186/s12916-021-02212-0] [Citation(s) in RCA: 69] [Impact Index Per Article: 34.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Accepted: 12/09/2021] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND COVID-19 is an infectious disease characterized by multiple respiratory and extrapulmonary manifestations, including gastrointestinal symptoms. Although recent studies have linked gut microbiota to infectious diseases such as influenza, little is known about the role of the gut microbiota in COVID-19 pathophysiology. METHODS To better understand the host-gut microbiota interactions in COVID-19, we characterized the gut microbial community and gut barrier function using metagenomic and metaproteomic approaches in 63 COVID-19 patients and 8 non-infected controls. Both immunohematological parameters and transcriptional profiles were measured to reflect the immune response in COVID-19 patients. RESULTS Altered gut microbial composition was observed in COVID-19 patients, which was characterized by decreased commensal species and increased opportunistic pathogenic species. Severe illness was associated with higher abundance of four microbial species (i.e., Burkholderia contaminans, Bacteroides nordii, Bifidobacterium longum, and Blautia sp. CAG 257), six microbial pathways (e.g., glycolysis and fermentation), and 10 virulence genes. These severity-related microbial features were further associated with host immune response. For example, the abundance of Bu. contaminans was associated with higher levels of inflammation biomarkers and lower levels of immune cells. Furthermore, human-origin proteins identified from both blood and fecal samples suggested gut barrier dysfunction in COVID-19 patients. The circulating levels of lipopolysaccharide-binding protein increased in patients with severe illness and were associated with circulating inflammation biomarkers and immune cells. Besides, proteins of disease-related bacteria (e.g., B. longum) were detectable in blood samples from patients. CONCLUSIONS Our results suggest that the dysbiosis of the gut microbiome and the dysfunction of the gut barrier might play a role in the pathophysiology of COVID-19 by affecting host immune homeostasis.
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Affiliation(s)
- Zhonghan Sun
- State Key Laboratory of Genetic Engineering, School of Life Sciences and Human Phenome Institute, Fudan University, Shanghai, China.,Ministry of Education Key Laboratory of Contemporary Anthropology, Fudan University, Shanghai, China
| | - Zhi-Gang Song
- Shanghai Public Health Clinical Center, State Key Laboratory of Genetic Engineering, School of Life Sciences and Human Phenome Institute, Fudan University, Shanghai, China.,Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Chenglin Liu
- State Key Laboratory of Genetic Engineering, School of Life Sciences and Human Phenome Institute, Fudan University, Shanghai, China
| | - Shishang Tan
- State Key Laboratory of Genetic Engineering, School of Life Sciences and Human Phenome Institute, Fudan University, Shanghai, China
| | - Shuchun Lin
- State Key Laboratory of Genetic Engineering, School of Life Sciences and Human Phenome Institute, Fudan University, Shanghai, China
| | - Jiajun Zhu
- State Key Laboratory of Genetic Engineering, School of Life Sciences and Human Phenome Institute, Fudan University, Shanghai, China
| | - Fa-Hui Dai
- Shanghai Public Health Clinical Center, State Key Laboratory of Genetic Engineering, School of Life Sciences and Human Phenome Institute, Fudan University, Shanghai, China
| | - Jian Gao
- State Key Laboratory of Genetic Engineering, School of Life Sciences and Human Phenome Institute, Fudan University, Shanghai, China
| | - Jia-Lei She
- Shanghai Public Health Clinical Center, State Key Laboratory of Genetic Engineering, School of Life Sciences and Human Phenome Institute, Fudan University, Shanghai, China
| | - Zhendong Mei
- State Key Laboratory of Genetic Engineering, School of Life Sciences and Human Phenome Institute, Fudan University, Shanghai, China
| | - Tao Lou
- State Key Laboratory of Genetic Engineering, School of Life Sciences and Human Phenome Institute, Fudan University, Shanghai, China
| | - Jiao-Jiao Zheng
- Shanghai Public Health Clinical Center, State Key Laboratory of Genetic Engineering, School of Life Sciences and Human Phenome Institute, Fudan University, Shanghai, China
| | - Yi Liu
- Shanghai Public Health Clinical Center, State Key Laboratory of Genetic Engineering, School of Life Sciences and Human Phenome Institute, Fudan University, Shanghai, China
| | - Jiang He
- State Key Laboratory of Genetic Engineering, School of Life Sciences and Human Phenome Institute, Fudan University, Shanghai, China
| | - Yuanting Zheng
- State Key Laboratory of Genetic Engineering, School of Life Sciences and Human Phenome Institute, Fudan University, Shanghai, China
| | - Chen Ding
- State Key Laboratory of Genetic Engineering, School of Life Sciences and Human Phenome Institute, Fudan University, Shanghai, China
| | - Feng Qian
- State Key Laboratory of Genetic Engineering, School of Life Sciences and Human Phenome Institute, Fudan University, Shanghai, China
| | - Yan Zheng
- State Key Laboratory of Genetic Engineering, School of Life Sciences and Human Phenome Institute, Fudan University, Shanghai, China. .,Ministry of Education Key Laboratory of Public Health Safety, School of Public Health, Fudan University, Shanghai, China.
| | - Yan-Mei Chen
- Shanghai Public Health Clinical Center, State Key Laboratory of Genetic Engineering, School of Life Sciences and Human Phenome Institute, Fudan University, Shanghai, China.
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24
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Brock I, Eng N, Maitland A. Adult-onset mast cell activation syndrome following scombroid poisoning: a case report and review of the literature. J Med Case Rep 2021; 15:620. [PMID: 34920756 PMCID: PMC8684076 DOI: 10.1186/s13256-021-03190-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Accepted: 11/12/2021] [Indexed: 11/18/2022] Open
Abstract
Background Mast cells are closely associated with epithelium, serving as sentinels responsible for the recognition of tissue injury and coordination of the initial inflammatory response. Upon detection of the injured cell content, mast cells then tailor the release of preformed and newly produced chemical mediators to the detected challenge, via an array of pathogen receptors. In addition to immunoglobulin E receptor-triggered mast cell activation, commonly referred to as allergic or atopic disorders, non-immunoglobulin E receptor mediated mast cell activation follows engagement of toll-like receptors, immunoglobulin G receptors, and complement receptors. Upon containment of the extrinsic challenge, acute inflammation is downregulated, and repair of the injured tissue ensues. The mast cell compartments must return to a baseline steady state to remain tolerant towards self-antigens and harmless entities, including environmental conditions, to prevent unnecessary immune activation and chronic hypersensitivity disorders. Over the past 50 years, an increasing number of patients are experiencing episodes of aberrant mast cell activation, not associated with allergen-specific mast cell disease or systemic mastocytosis. This led to proposed diagnostic criteria of mast cell activation syndrome. Mast cell activation syndrome is a heterogeneous disorder, defined by a combination of (1) recurrent symptoms typical of mast cell activation, (2) an increase of validated mast cell derived mediators, and (3) response to treatment with mast cell stabilizing or mast cell mediator-targeted therapies. Onset of mast cell activation syndrome ostensibly reflects the loss of tolerance in the mast cell compartment to nonthreatening entities and nonhazardous environmental conditions. The etiology of chronic mast cell dysregulation and associated intolerance to self-antigens or harmless entities is not well understood, but a growing number of studies point to exposure of the epithelial borders, which leads to inappropriate or excessive mast cell activation or impaired resolution of acute inflammation following neutralization of the identified pathogen. Case presentation Here we present a case of adult onset mast cell activation syndrome following scombroid poisoning. Scombroid toxicity is usually a self-limited illness, but there are individuals who have been shown to have severe symptoms or persistent illness following histamine fish poisoning. We describe a 74-year-old Caucasian woman, with a history of drug-induced urticaria, who developed a constellation of hypersensitivity illnesses consistent with the diagnosis of mast cell activation syndrome after ingestion of tainted fish. Conclusion Mast cell activation disease causes problems of increased complexity in children and adults. The increased prevalence and severity of mast cell activation disease has been attributed to dramatic changes in our lifestyles and modern living environments. These changes likely impact the integrity of the epithelial barriers, leading to loss of tolerance in the mast cell compartment. Here, we present a case of a nonatopic, 74-year-old female who developed mast cell activation disease after exposure to a potent environmental toxin. Mast cell activation disease commonly involves several organ systems, with patients often referred to a succession of different specialists. This results in delayed diagnosis and suboptimal care. Instead, early recognition of mast cell activation disease would lead to better outcomes. We review the literature, describing the diagnostic criteria for mast cell activation disorders that can improve recognition of this multiorgan system syndrome. Further research is needed into the interaction of epithelial barrier disruption and the dysregulation of the immune system.
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Affiliation(s)
- Isabelle Brock
- Comprehensive Asthma and Allergy, 200 S Broadway Suite 104, Tarrytown, NY, 10591, USA. .,Qolify, 99 Wall St Suite 1147, New York, NY, 10005, USA. .,Department of Medical and Molecular Genetics, Indiana University School of Medicine, 975 W. Walnut Street, IB 130, Indianapolis, IN, 46202, USA.
| | - Nicole Eng
- Nicole Eng, BS, Biomedical Studies, University of Pittsburgh, Pittsburgh, USA
| | - Anne Maitland
- Comprehensive Asthma and Allergy, 200 S Broadway Suite 104, Tarrytown, NY, 10591, USA.,Department of Neurology, Mount Sinai- South Nassau Hospital, The Chiari-EDS Center, 1420 Broadway, Hewlett, NY, 11557, USA
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25
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Luo G, Zhang J, Sun Y, Wang Y, Wang H, Cheng B, Shu Q, Fang X. Nanoplatforms for Sepsis Management: Rapid Detection/Warning, Pathogen Elimination and Restoring Immune Homeostasis. Nanomicro Lett 2021; 13:88. [PMID: 33717630 PMCID: PMC7938387 DOI: 10.1007/s40820-021-00598-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 12/14/2020] [Indexed: 05/20/2023]
Abstract
Sepsis, a highly life-threatening organ dysfunction caused by uncontrollable immune responses to infection, is a leading contributor to mortality in intensive care units. Sepsis-related deaths have been reported to account for 19.7% of all global deaths. However, no effective and specific therapeutic for clinical sepsis management is available due to the complex pathogenesis. Concurrently eliminating infections and restoring immune homeostasis are regarded as the core strategies to manage sepsis. Sophisticated nanoplatforms guided by supramolecular and medicinal chemistry, targeting infection and/or imbalanced immune responses, have emerged as potent tools to combat sepsis by supporting more accurate diagnosis and precision treatment. Nanoplatforms can overcome the barriers faced by clinical strategies, including delayed diagnosis, drug resistance and incapacity to manage immune disorders. Here, we present a comprehensive review highlighting the pathogenetic characteristics of sepsis and future therapeutic concepts, summarizing the progress of these well-designed nanoplatforms in sepsis management and discussing the ongoing challenges and perspectives regarding future potential therapies. Based on these state-of-the-art studies, this review will advance multidisciplinary collaboration and drive clinical translation to remedy sepsis.
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Affiliation(s)
- Gan Luo
- Department of Anesthesiology and Intensive Care, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003 People’s Republic of China
| | - Jue Zhang
- Department of Anesthesiology and Intensive Care, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003 People’s Republic of China
| | - Yaqi Sun
- Department of Anesthesiology and Intensive Care, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003 People’s Republic of China
| | - Ya Wang
- Department of Anesthesiology and Intensive Care, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003 People’s Republic of China
| | - Hanbin Wang
- Department of Anesthesiology and Intensive Care, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003 People’s Republic of China
| | - Baoli Cheng
- Department of Anesthesiology and Intensive Care, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003 People’s Republic of China
| | - Qiang Shu
- National Clinical Research Center for Child Health, Children’s Hospital, School of Medicine, Zhejiang University, Hangzhou, 310052 People’s Republic of China
| | - Xiangming Fang
- Department of Anesthesiology and Intensive Care, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310003 People’s Republic of China
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26
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Oh HJ, Jin H, Nah SY, Lee BY. Gintonin-enriched fraction improves sarcopenia by maintaining immune homeostasis in 20- to 24-month-old C57BL/6J mice. J Ginseng Res 2021; 45:744-753. [PMID: 34764729 PMCID: PMC8570963 DOI: 10.1016/j.jgr.2021.07.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 07/18/2021] [Accepted: 07/19/2021] [Indexed: 11/15/2022] Open
Abstract
Background Gintonin-enriched fraction (GEF) is a new non-saponin component glycolipoprotein isolated from ginseng root. This study examined the effect of GEF on age-related sarcopenia in old C57BL/6J mice. Methods Young (3–6 months) and old (20–24 months) C57BL/6J mice received oral GEF (50 mg/kg/day or 150 mg/kg/day) daily for 5 weeks. During the oral administration period, body weight and grip strength were measured weekly. After sacrifice, muscles from the hindlimb were excised and used for hematoxylin and eosin staining and western blotting to determine the effects of GEF on sarcopenia. The thymus was photographed to compare size, and flow cytometry was performed to examine the effect of GEF on immune homeostasis in the thymus and spleen. Blood samples were collected, and the concentrations of pro-inflammatory cytokines and IGF-1 were measured. Results GEF caused a significant increase in muscle strength, mass, and fiber size in old mice. GEF restored age-related disruption of immune homeostasis by maintaining T cell compartments and regulating inflammatory biomarkers. Thus, GEF reduced common low-grade chronic inflammatory parameters, which are the main cause of muscle loss. Conclusion GEF maintained immune homeostasis and inhibited markers of chronic inflammation, resulting in anti-sarcopenia effects in aged C57BL/6J mice. Thus, GEF is a potential therapeutic agent that slows sarcopenia in the elderly.
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Affiliation(s)
- Hyun-Ji Oh
- Department of Food Science and Biotechnology, College of Life Science, CHA University, Seongnam, Kyonggi, Republic of Korea
| | - Heegu Jin
- Department of Food Science and Biotechnology, College of Life Science, CHA University, Seongnam, Kyonggi, Republic of Korea
| | - Seung-Yeol Nah
- Ginsentology Research Laboratory and Department of Physiology, College of Veterinary Medicine, Konkuk University, Seoul, Republic of Korea
| | - Boo-Yong Lee
- Department of Food Science and Biotechnology, College of Life Science, CHA University, Seongnam, Kyonggi, Republic of Korea
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27
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Bentley ER, Little SR. Local delivery strategies to restore immune homeostasis in the context of inflammation. Adv Drug Deliv Rev 2021; 178:113971. [PMID: 34530013 PMCID: PMC8556365 DOI: 10.1016/j.addr.2021.113971] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 09/05/2021] [Accepted: 09/07/2021] [Indexed: 12/13/2022]
Abstract
Immune homeostasis is maintained by a precise balance between effector immune cells and regulatory immune cells. Chronic deviations from immune homeostasis, driven by a greater ratio of effector to regulatory cues, can promote the development and propagation of inflammatory diseases/conditions (i.e., autoimmune diseases, transplant rejection, etc.). Current methods to treat chronic inflammation rely upon systemic administration of non-specific small molecules, resulting in broad immunosuppression with unwanted side effects. Consequently, recent studies have developed more localized and specific immunomodulatory approaches to treat inflammation through the use of local biomaterial-based delivery systems. In particular, this review focuses on (1) local biomaterial-based delivery systems, (2) common materials used for polymeric-delivery systems and (3) emerging immunomodulatory trends used to treat inflammation with increased specificity.
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Affiliation(s)
- Elizabeth R Bentley
- Department of Bioengineering, University of Pittsburgh, 302 Benedum Hall, 3700 O'Hara Street, Pittsburgh, PA 15260, United States.
| | - Steven R Little
- Department of Bioengineering, University of Pittsburgh, 302 Benedum Hall, 3700 O'Hara Street, Pittsburgh, PA 15260, United States; Department of Chemical Engineering, University of Pittsburgh, 940 Benedum Hall, 3700 O'Hara Street, Pittsburgh, PA 15213, United States; Department of Clinical and Translational Science, University of Pittsburgh, Forbes Tower, Suite 7057, Pittsburgh, PA 15213, United States; McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Drive, Suite 300, Pittsburgh, PA 15219, United States; Department of Immunology, University of Pittsburgh, 200 Lothrop Street, Pittsburgh, PA 15213, United States; Department of Pharmaceutical Sciences, University of Pittsburgh, 3501 Terrace Street, Pittsburgh, PA 15213, United States; Department of Ophthalmology, University of Pittsburgh, 203 Lothrop Street, Pittsburgh, PA 15213, United States.
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28
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Wang S, Lai X, Li C, Chen M, Hu M, Liu X, Song Y, Deng Y. Sialic acid-conjugate modified doxorubicin nanoplatform for treating neutrophil-related inflammation. J Control Release 2021; 337:612-627. [PMID: 34332025 DOI: 10.1016/j.jconrel.2021.07.044] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 07/24/2021] [Accepted: 07/27/2021] [Indexed: 11/28/2022]
Abstract
Neutrophils, the most abundant leukocytes in human peripheral blood, are important effector cells that mediate the inflammatory response. During neutrophil dysfunction, excessive activation and uncontrolled infiltration are the core processes in the progression of inflammation-related diseases, including severe coronavirus disease-19 (COVID-19), sepsis, etc. Herein, we used sialic acid-modified liposomal doxorubicin (DOX-SAL) to selectively target inflammatory neutrophils in the peripheral blood and deliver DOX intracellularly, inducing neutrophil apoptosis, blocking neutrophil migration, and inhibiting the inflammatory response. Strong selectivity resulted from the specific affinity between SA and L-selectin, which is highly expressed on inflammatory neutrophil membranes. In inflammation models of acute lung inflammation/injury (ALI), sepsis, and rheumatoid arthritis (RA), DOX-SAL suppressed the inflammatory response, increased the survival of mice, and delayed disease progression, respectively. Moreover, DOX-SAL restored immune homeostasis in the body, without side effects. We have presented a targeted nanocarrier drug delivery system that can block the recruitment of inflammatory neutrophils, enabling specific inhibition of the core disease process and the potential to treat multiple diseases with a single drug. This represents a revolutionary treatment strategy for inflammatory diseases caused by inappropriate neutrophil activation.
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Affiliation(s)
- Shuo Wang
- College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Xiaoxue Lai
- College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Cong Li
- College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Meng Chen
- College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Miao Hu
- College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Xinrong Liu
- College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China
| | - Yanzhi Song
- College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China.
| | - Yihui Deng
- College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, PR China.
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Merk VM, Brunner T. Immunosuppressive glucocorticoids at epithelial barriers in the regulation of anti-viral immune response. Vitam Horm 2021; 117:77-100. [PMID: 34420586 DOI: 10.1016/bs.vh.2021.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The anti-inflammatory action of adrenal-derived glucocorticoids has been recognized since several decades. This knowledge has found broad application in the clinics and today synthetic glucocorticoids are widely used in the treatment of various inflammatory diseases. However, the use of synthetic glucocorticoids in the treatment of diseases associated with viral infections of epithelial surfaces, like the lung or the intestine, is still under debate and seems not as efficient as desired. Basic research on the anti-viral immune responses and on regulatory mechanisms in the prevention of immunopathological disorders, however, has led us back again to focus on endogenous glucocorticoid synthesis. It has become established that this synthesis is not restricted to the adrenal glands alone, but that numerous tissues also produce glucocorticoids in situ. Extra-adrenal derived glucocorticoids have the capacity to locally control and maintain immune homeostasis under steady-state and inflammatory conditions. Here, we discuss the current knowledge of extra-adrenal glucocorticoid synthesis in the lung and the intestine, and its role in the regulation of anti-viral immune responses.
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Affiliation(s)
- V M Merk
- Chair of Biochemical Pharmacology, Department of Biology, University of Konstanz, Konstanz, Germany
| | - T Brunner
- Chair of Biochemical Pharmacology, Department of Biology, University of Konstanz, Konstanz, Germany.
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30
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Wang J, Zheng S, Yang X, Huazeng B, Cheng Q. Influences of non-IgE-mediated cow's milk protein allergy-associated gut microbial dysbiosis on regulatory T cell-mediated intestinal immune tolerance and homeostasis. Microb Pathog 2021; 158:105020. [PMID: 34089791 DOI: 10.1016/j.micpath.2021.105020] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 05/02/2021] [Accepted: 05/25/2021] [Indexed: 12/13/2022]
Abstract
Gut microbial dysbiosis is closely associated with cow's milk protein allergy (CMPA) during infancy. Recent research has highlighted the crucial role of the commensal microbiota-induced intestinal regulatory T (Treg) cell response in the development of oral tolerance and protection against IgE-mediated food allergies. However, the influences of CMPA (particularly non-IgE-mediated CMPA)-associated microbial dysbiosis on Treg cell-mediated intestinal immune tolerance and homeostasis remain poorly characterized. To investigate this issue, fecal microbiota from infant donors with food protein-induced allergic proctocolitis (FPIAP) associated with cow's milk, which is the most frequent clinical type of non-IgE-mediated gastrointestinal CMPA, and from age-matched healthy controls were transplanted into germ-free mice in this study. Two weeks post fecal microbiota transplantation, the gut microbiome of the recipient mice was analyzed by 16S rRNA gene sequencing, and the intestinal immunological alterations associated with the Treg cell compartment and intestinal immune homeostasis were detected. The specific gut microbial phylotypes that were potentially responsible for the disruption of intestinal immune homeostasis were also analyzed. We observed that the main characteristics of the gut microbiome in infant donors could be stably maintained in recipient mice. We also found that mice colonized with the gut microbiome from infants with cow's milk-induced FPIAP showed significant deficiencies in the accumulation and function of intestinal Treg cells. Furthermore, these mice showed disrupted intestinal immune homeostasis, which was characterized by an overactivated Th2 biased immune response. We further identified two potentially pathogenic genera that contribute to this disruption. Overall, our results highlight a destructive effect of non-IgE-mediated CMPA-associated microbial dysbiosis on intestinal immune tolerance and homeostasis. We believe these findings will help improve our understanding of the gut microbiota-mediated pathogenesis of non-IgE-mediated CMPA in the future.
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Affiliation(s)
- Jinzhi Wang
- Department of Nephrology, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatircs, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China
| | - Shuang Zheng
- Department of Child Health Care, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Health and Nutrition, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China
| | - Xin Yang
- Department of Child Health Care, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Health and Nutrition, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China
| | - Ben Huazeng
- Department of Laboratory Animal Science, College of Basic Medical Sciences, Army Medical University, Chongqing, 400038, China
| | - Qian Cheng
- Department of Child Health Care, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Health and Nutrition, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China.
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31
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Abstract
The immune system mediates powerful effector mechanisms to protect against a diversity of pathogens and equally as important regulatory functions, to limit collateral damage of inflammation, prevent misguided immune responses to "self", and promote tissue repair. Inadequate regulatory control can lead to a variety of inflammatory disorders including autoimmunity, metabolic syndrome, allergies, and progression of malignancies. Cancers evolve complex mechanisms to thwart immune eradication including coopting normal host regulatory processes. This is most evident in the analysis of tumor infiltrating lymphocytes (TILs), where a preponderance of immunosuppressive immune cells, such as regulatory T (Treg) cells are found. Treg cells express the X-chromosome linked transcription factor Foxp3 and play a crucial role in maintaining immune homeostasis by suppressing inflammatory responses in diverse biological settings. Treg cells in the tumor microenvironment promote tumor development and progression by dampening anti-tumor immune responses, directly supporting the survival of transformed cells through elaboration of growth factors, and interacting with accessory cells in tumors such as fibroblasts and endothelial cells. Current insights into the phenotype and function of tumor associated Treg cells have opened up opportunities for their selective targeting in cancer with the goal of alleviating their suppression of anti-tumor immune responses while maintaining overall immune homeostasis. Here, we review Treg cell biology in the context of the tumor microenvironment (TME), and the important role they play in cancer immunotherapy.
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Affiliation(s)
- Ariella Glasner
- Immunology Program and Ludwig Center for Cancer Immunotherapy, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA
| | - George Plitas
- Immunology Program and Ludwig Center for Cancer Immunotherapy, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA; Breast Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA.
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Lei Z, Yang L, Lei Y, Yang Y, Zhang X, Song Q, Chen G, Liu W, Wu H, Guo J. High dose lithium chloride causes colitis through activating F4/80 positive macrophages and inhibiting expression of Pigr and Claudin-15 in the colon of mice. Toxicology 2021; 457:152799. [PMID: 33901603 DOI: 10.1016/j.tox.2021.152799] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 04/02/2021] [Accepted: 04/21/2021] [Indexed: 01/08/2023]
Abstract
OBJECTIVE Lithium chloride (LiCl) was a mood stabilizer for bipolar affective disorders and it could activate Wnt/β-catenin signaling pathway both in vivo and in vitro. Colon is one of a very susceptible tissues to Wnt signaling pathway, and so it would be very essential to explore the toxic effect of a high dose of LiCl on colon. METHODS C57BL/6 mice were injected intraperitoneally with 200 mg/kg LiCl one dose a day for 5 days to activate Wnt signal pathway in intestines. H&E staining was used to assess the colonic tissues of mice treated with high dose of LiCl. The expression of inflammation-associated genes and tight junction-associated genes in colons was measured using qPCR, Western blot and immunostaining methods. The gut microbiome was tested through 16S rDNA gene analysis. RESULTS The differentiation of enteroendocrine cells in colon was inhibited by treatment of 200 mg/kg LiCl. The F4/80 positive macrophages in colon were activated by high dose of LiCl, and migrated from the submucosa to the lamina propria. The expression of pro-inflammatory genes TNFα and IL-1β was increased in the colon of high dose of LiCl treated mice. Clostridium_sp_k4410MGS_306 and Prevotellaceae_UCG_001 were specific and predominant for the high dose of LiCl treated mice. The expression of IgA coding genes, Pigr and Claudin-15 was significantly decreased in the colon tissues of the high dose of LiCl treated mice. CONCLUSION 200 mg/kg LiCl might cause the inflammation in colon of mice through activating F4/80 positive macrophages and inhibiting the expression of IgA coding genes in plasma cells and the expression of Pigr and Claudin-15 in colonic epithelial cells, providing evidences for the toxic effects of high dose of LiCl on colon.
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Affiliation(s)
- Zili Lei
- Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Guangdong TCM Key Laboratory for Metabolic Disease, Guangdong Pharmaceutical University, Guangzhou Higher Education Mega Center, Guangzhou, 510006, PR China.
| | - Lanxiang Yang
- Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Guangdong TCM Key Laboratory for Metabolic Disease, Guangdong Pharmaceutical University, Guangzhou Higher Education Mega Center, Guangzhou, 510006, PR China; School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou Higher Education Mega Center, Guangzhou, 510006, PR China
| | - Yuting Lei
- Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Guangdong TCM Key Laboratory for Metabolic Disease, Guangdong Pharmaceutical University, Guangzhou Higher Education Mega Center, Guangzhou, 510006, PR China
| | - Yanhong Yang
- The First Affiliated Hospital (School of Clinical Medicine), Guangdong Pharmaceutical University, Nong-Lin-Xia Road 19#, Yue-Xiu District, Guangzhou 510080, PR China
| | - Xueying Zhang
- Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Guangdong TCM Key Laboratory for Metabolic Disease, Guangdong Pharmaceutical University, Guangzhou Higher Education Mega Center, Guangzhou, 510006, PR China; School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou Higher Education Mega Center, Guangzhou, 510006, PR China
| | - Qi Song
- Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Guangdong TCM Key Laboratory for Metabolic Disease, Guangdong Pharmaceutical University, Guangzhou Higher Education Mega Center, Guangzhou, 510006, PR China
| | - Guibin Chen
- Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Guangdong TCM Key Laboratory for Metabolic Disease, Guangdong Pharmaceutical University, Guangzhou Higher Education Mega Center, Guangzhou, 510006, PR China
| | - Wanwan Liu
- Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Guangdong TCM Key Laboratory for Metabolic Disease, Guangdong Pharmaceutical University, Guangzhou Higher Education Mega Center, Guangzhou, 510006, PR China
| | - Huijuan Wu
- Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Guangdong TCM Key Laboratory for Metabolic Disease, Guangdong Pharmaceutical University, Guangzhou Higher Education Mega Center, Guangzhou, 510006, PR China; School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou Higher Education Mega Center, Guangzhou, 510006, PR China
| | - Jiao Guo
- Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Guangdong TCM Key Laboratory for Metabolic Disease, Guangdong Pharmaceutical University, Guangzhou Higher Education Mega Center, Guangzhou, 510006, PR China.
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Xia J, Jiang S, Lv L, Wu W, Wang Q, Xu Q, Ye J, Fang D, Li Y, Wu J, Bian X, Yang L, Jiang H, Wang K, Yan R, Li L. Modulation of the immune response and metabolism in germ-free rats colonized by the probiotic Lactobacillus salivarius LI01. Appl Microbiol Biotechnol 2021; 105:1629-45. [PMID: 33507355 DOI: 10.1007/s00253-021-11099-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 12/21/2020] [Accepted: 01/05/2021] [Indexed: 01/06/2023]
Abstract
The gut microbiota plays an important role in multifaceted physiological functions in the host. Previous studies have assessed the probiotic effects of Lactobacillus salivarius LI01. In this study, we aimed to investigate the potential effects and putative mechanism of L. salivarius LI01 in immune modulation and metabolic regulation through the monocolonization of germ-free (GF) Sprague-Dawley (SD) rats with L. salivarius LI01. The GF rats were separated into two groups and administered a gavage of L. salivarius LI01 or an equal amount of phosphate-buffered saline. The levels of serum biomarkers, such as interleukin (IL)-1α, IL-5, and IL-10, were restored by L. salivarius LI01, which indicated the activation of Th0 cell differentiation toward immune homeostasis. L. salivarius LI01 also stimulated the immune response and metabolic process by altering transcriptional expression in the ileum and liver. A Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis revealed significant enrichment of the 5'-adenosine monophosphate-activated protein kinase (AMPK) signaling pathway, which indicated that L. salivarius LI01 exerts an effect on energy accumulation. The LI01 group showed alterations in fecal carbohydrates accompanied by an increased body weight gain. In addition, L. salivarius LI01 produced indole-3-lactic acid (ILA) and enhanced arginine metabolism by rebalancing the interconversion between arginine and proline. These findings provide evidence showing that L. salivarius LI01 can directly impact the host by modulating immunity and metabolism. KEY POINTS : • Lactobacillus salivarius LI01 conventionalizes the cytokine profile and activates the immune response. • LI01 modulates carbohydrate metabolism and arginine transaction. • LI01 generates tryptophan-derived indole-3-lactic acid. • The cytochrome P450 family contributes to the response to altered metabolites.
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Proschinger S, Winker M, Joisten N, Bloch W, Palmowski J, Zimmer P. The effect of exercise on regulatory T cells: A systematic review of human and animal studies with future perspectives and methodological recommendations. Exerc Immunol Rev 2021; 27:142-166. [PMID: 33965900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Many of the exercise-related health-promoting effects are attributed to beneficial immunomodulation. The restoration of immune homeostasis is context-dependent, meaning either to increase anti-inflammatory signaling to counteract disease progression of non-communicable (auto)inflammatory diseases or to enhance (local) activity of proinflammatory immune cells to slow down or inhibit cancer progression. Regulatory CD4+ T cells (Tregs) represent the main regulatory component of the adaptive immune system that fine-tunes inflammatory responses, keeps them in check and prevents long-lasting autoimmunity. Because often dysregulated in the context of various diseases, emerging treatment approaches aim to modulate their number or inherent anti-inflammatory and immunosuppressive function in a highly disease-specific way. Exercise represents a non-pharmacologic strategy in disease prevention and rehabilitation and may be an effective treatment with few to no side effects to counteract dysregulation of Tregs. To date, several studies have evaluated the effect of exercise on Treg-related outcomes. This review aims at providing a comprehensive overview on alterations of blood- or tissue-derived Treg counts, proportion and functionality following acute and chronic exercise in humans and animal models. From the 60 reviewed studies, an overall disease-specific beneficial effect of chronic exercise on Treg levels in animal models can be stated, while both acute and chronic effects in human studies are less definite. However, Treg phenotyping is less sufficient in the animal studies compared to human studies. Only a limited number of studies investigated Treg functionality. There is a large heterogeneity concerning study design, human population or animal model, exercise protocol, and Treg outcome measure specification which makes it difficult to compare results and draw clear conclusions. Study results are discussed in the context of current concepts in exercise immunology. Finally, future perspectives and methodological recommendations are provided to promote research in this field.
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Affiliation(s)
- Sebastian Proschinger
- Department for molecular and cellular sports medicine, Institute of cardiovascular research and sports medicine, German Sport University, Cologne, Germany
| | - Matteo Winker
- Department for molecular and cellular sports medicine, Institute of cardiovascular research and sports medicine, German Sport University, Cologne, Germany
| | - Niklas Joisten
- Department of "Performance and Health (Sports Medicine)", Institute of Sport and Sport Science, Technical University Dortmund, Dortmund, Germany
| | - Wilhelm Bloch
- Department for molecular and cellular sports medicine, Institute of cardiovascular research and sports medicine, German Sport University, Cologne, Germany
| | - Jana Palmowski
- Department of Exercise Physiology and Sports Therapy, Institute of Sports Science, Justus-Liebig-University Giessen, Giessen, Germany
| | - Philipp Zimmer
- Department of "Performance and Health (Sports Medicine)", Institute of Sport and Sport Science, Technical University Dortmund, Dortmund, Germany
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35
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Abstract
Sepsis is a syndrome of shock and dysfunction of multiple vital organs that is caused by an uncontrolled immune response to infection and has a high mortality rate. There are no therapies for sepsis, and it has become a global cause for concern. Advances in patient care and management now mean that most patients survive the initial hyper-inflammatory phase of sepsis but progress to a later immunosuppressed phase, where 30% of patients die due to secondary infection. Deficits in the adaptive immune response may play a major role in sepsis patient mortality. The adaptive immune response involves a number of cell types including T cells, B cells and dendritic cells, all with immunoregulatory roles aimed at limiting damage and returning immune homeostasis after infection or insult. However, in sepsis, adaptive immune cells experience cell death or exhaustion, meaning that they have defective effector and memory responses ultimately resulting in an ineffective or suppressed immune defence. CD4+ T cells seem to be the most susceptible to cell death during sepsis and have ensuing defective secretory profiles and functions. Regulatory T cells seem to evade apoptosis and contribute to the immune suppression observed with sepsis. Preclinical studies have identified a number of new targets for therapy in sepsis including anti-apoptotic agents and monoclonal antibodies aimed at reducing cell death, exhaustion and maintaining/restoring adaptive immune cell functions. While early phase clinical trials have demonstrated safety and encouraging signals for biologic effect, larger scale clinical trial testing is required to determine whether these strategies will prove effective in improving outcomes from sepsis.
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Affiliation(s)
- Jack Brady
- Anaesthesia, School of Medicine, Clinical Sciences Institute, National University of Ireland, Galway, Ireland.,Regenerative Medicine Institute (REMEDI) at CÚRAM Centre for Research in Medical Devices, Biomedical Sciences Building, National University of Ireland Galway, Galway, Ireland
| | - Shahd Horie
- Anaesthesia, School of Medicine, Clinical Sciences Institute, National University of Ireland, Galway, Ireland.,Regenerative Medicine Institute (REMEDI) at CÚRAM Centre for Research in Medical Devices, Biomedical Sciences Building, National University of Ireland Galway, Galway, Ireland
| | - John G Laffey
- Anaesthesia, School of Medicine, Clinical Sciences Institute, National University of Ireland, Galway, Ireland. .,Regenerative Medicine Institute (REMEDI) at CÚRAM Centre for Research in Medical Devices, Biomedical Sciences Building, National University of Ireland Galway, Galway, Ireland. .,Department of Anaesthesia, Galway University Hospitals, SAOLTA University Health Group, Galway, Ireland.
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36
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Maddur MS, Lacroix-Desmazes S, Dimitrov JD, Kazatchkine MD, Bayry J, Kaveri SV. Natural Antibodies: from First-Line Defense Against Pathogens to Perpetual Immune Homeostasis. Clin Rev Allergy Immunol 2020; 58:213-28. [PMID: 31161341 DOI: 10.1007/s12016-019-08746-9] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Natural antibodies (nAbs) are most commonly defined as immunoglobulins present in the absence of pathological conditions or deliberate immunizations. Occurrence of nAbs in germ- and antigen-free mice suggest that their production is driven, at least in part, by self-antigens. Accordingly, nAbs are constituted of natural autoantibodies (nAAbs), and can belong to the IgM, IgG, or IgA subclasses. These nAbs provide immediate protection against infection while the adaptive arm of the immune system mounts a specific and long-term response. Beyond immediate protection from infection, nAbs have been shown to play various functional roles in the immune system, which include clearance of apoptotic debris, suppression of autoimmune and inflammatory responses, regulation of B cell responses, selection of the B cell repertoires, and regulation of B cell development. These various functions of nAbs are afforded by their reactivity, which is broad, cross-reactive, and shown to recognize evolutionarily fixed epitopes shared between foreign and self-antigens. Furthermore, nAbs have unique characteristics that also contribute to their functional roles and set them apart from antigen-specific antibodies. In further support for the role of nAbs in the protection against infections and in the maintenance of immune homeostasis, the therapeutic preparation of polyclonal immunoglobulins, intravenous immunoglobulin (IVIG), rich in nAbs is commonly used in the replacement therapy of primary and secondary immunodeficiencies and in the immunotherapy of a large number of autoimmune and inflammatory diseases. Here, we review several topics on nAbs features and functions, and therapeutic applications in human diseases.
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37
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Li X, Zhang F, Wu N, Ye D, Wang Y, Zhang X, Sun Y, Zhang YA. A critical role of foxp3a-positive regulatory T cells in maintaining immune homeostasis in zebrafish testis development. J Genet Genomics 2020; 47:547-561. [PMID: 33309050 DOI: 10.1016/j.jgg.2020.07.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 07/22/2020] [Accepted: 07/30/2020] [Indexed: 01/07/2023]
Abstract
Suppressive regulatory T cells (Treg cells) play a vital role in preventing autoimmunity and restraining excessive immune response to both self- and non-self-antigens. Studies on humans and mice show that the Forkhead box p3 (Foxp3) is a key regulatory gene for the development and function of Treg cells. In zebrafish, Treg cells have been identified by using foxp3a as a reliable marker. However, little is known about the function of foxp3a and Treg cells in gonadal development and sex differentiation. Here, we show that foxp3a is essential for maintaining immune homeostasis in zebrafish testis development. We found that foxp3a was specifically expressed in a subset of T cells in zebrafish testis, while knockout of foxp3a led to deficiency of foxp3a-positive Treg cells in the testis. More than 80% of foxp3a-/- mutants developed as subfertile males, and the rest of the mutants developed as fertile females with decreased ovulation. Further study revealed that foxp3a-/- mutants had a delayed juvenile ovary-to-testis transition in definite males and sex reversal in about half of the definite females, which led to a dominance of later male development. Owing to the absence of foxp3a-positive Treg cells in the differentiating testis of foxp3a-/- mutants, abundant T cells and macrophages expand to disrupt an immunosuppressive milieu, resulting in defective development of germ cells and gonadal somatic cells and leading to development of infertile males. Therefore, our study reveals that foxp3a-positive Treg cells play an essential role in the orchestration of gonadal development and sex differentiation in zebrafish.
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Affiliation(s)
- Xianmei Li
- State Key Laboratory of Freshwater Ecology and Biotechnology, Innovation Academy for Seed Design, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Fenghua Zhang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Innovation Academy for Seed Design, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Nan Wu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Innovation Academy for Seed Design, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Ding Ye
- State Key Laboratory of Freshwater Ecology and Biotechnology, Innovation Academy for Seed Design, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Yaqing Wang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Innovation Academy for Seed Design, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiaofan Zhang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Innovation Academy for Seed Design, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yonghua Sun
- State Key Laboratory of Freshwater Ecology and Biotechnology, Innovation Academy for Seed Design, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Yong-An Zhang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Innovation Academy for Seed Design, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071, China; State Key Laboratory of Agricultural Microbiology, College of Fisheries, Huazhong Agricultural University, Wuhan, 430070, China.
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38
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Zhang Y, Huo X, Lu X, Zeng Z, Faas MM, Xu X. Exposure to multiple heavy metals associate with aberrant immune homeostasis and inflammatory activation in preschool children. Chemosphere 2020; 257:127257. [PMID: 32534297 DOI: 10.1016/j.chemosphere.2020.127257] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 05/26/2020] [Accepted: 05/28/2020] [Indexed: 02/06/2023]
Abstract
Heavy metals generate adverse health effects by interfering with immune homeostasis and promoting inflammation in individuals. Our objective was to explore the induction of immune and inflammatory responses by multiple heavy metals in children living in the e-waste contaminated area. A total of 147 preschool children were recruited, including 73 children from Guiyu, a typical e-waste recycling area, and 74 from a reference group. Blood levels of heavy metals, including lead (Pb), cadmium (Cd), mercury (Hg) and arsenic (As), were detected using an inductively coupled plasma mass spectrometry (ICP-MS). Immune cell counts (neutrophils, monocytes, lymphocytes) were determined by an automatic blood cell analyzer, pro-inflammatory cytokines (IL-1β, IL-6, IL-8, TNF-α) and anti-inflammatory cytokines (IL-1RA, IL-4, IL-10, IL-13) were analyzed by a Luminex 200 multiplex immunoassay instrument. Multiple correspondences and linear regression analyses were applied to investigate the relationships between heavy metal exposure and relevant parameters. Results shows Guiyu children had higher levels of Pb, Cd, Hg, As, IL-1β and IL-6, but decreased lymphocyte, IL-1RA and IL-13. Neutrophil count was positively correlated with Pb, Cd and Hg exposure. Anti-inflammatory IL-1RA concentration was negatively related with Pb, Cd, Hg and As, while pro-inflammatory IL-1β and IL-6 were positively correlated with Pb. Guiyu children may have dysregulated immune response and high inflammation risk. Exposure to Pb, Cd, Hg and As could be harmful for immune response and inflammatory regulation. Our finding of decreased IL-RA production in children exposed to Pb, Cd, Hg, and As is novel and could be an opportunity for future research.
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Affiliation(s)
- Yu Zhang
- Laboratory of Environmental Medicine and Developmental Toxicology, Guangdong Provincial Key Laboratory of Infectious Diseases, Shantou University Medical College, Shantou, 515041, Guangdong, China; Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713, GZ Groningen, the Netherlands
| | - Xia Huo
- School of Environment, Guangzhou Key Laboratory of Environmental Exposure and Health, Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou, 510632, Guangdong, China
| | - Xueling Lu
- Laboratory of Environmental Medicine and Developmental Toxicology, Guangdong Provincial Key Laboratory of Infectious Diseases, Shantou University Medical College, Shantou, 515041, Guangdong, China; Department of Epidemiology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713, GZ Groningen, the Netherlands
| | - Zhijun Zeng
- Laboratory of Environmental Medicine and Developmental Toxicology, Guangdong Provincial Key Laboratory of Infectious Diseases, Shantou University Medical College, Shantou, 515041, Guangdong, China; Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713, GZ Groningen, the Netherlands
| | - Marijke M Faas
- Department of Pathology and Medical Biology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713, GZ Groningen, the Netherlands
| | - Xijin Xu
- Laboratory of Environmental Medicine and Developmental Toxicology, Guangdong Provincial Key Laboratory of Infectious Diseases, Shantou University Medical College, Shantou, 515041, Guangdong, China; Department of Cell Biology and Genetics, Shantou University Medical College, Shantou, 515041, Guangdong, China.
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Nair PP, Nair PG, Pratap Shankar KM. An Ayurvedic personalized prophylactic protocol in COVID-19. J Ayurveda Integr Med 2020:S0975-9476(20)30083-8. [PMID: 33334655 DOI: 10.1016/j.jaim.2020.08.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 07/30/2020] [Accepted: 08/31/2020] [Indexed: 12/11/2022] Open
Abstract
The current COVID-19 pandemic brought about by the SARS-CoV-2, a novel β coronavirus is creating intense health havoc globally. Researchers suspect the situation to stay for long in the community, considering this virus’s pathogenesis, high rate transmission and tendency to provoke uncontrolled immune response activation. Immune mechanisms are highly individualistic. We put forward a hypothetical model of prakruti (Ayurvedic body phenotyping character) based personalized prophylactic-therapeutic strategies aiming at a better immunomodulation and quicker resolution of host immune mechanisms. We propose this model in symptomatic, mild to moderate, COVID-19 diagnosed cases and in cases quarantined for high to low risk primary contact with a positive case. We also suggest a community level personalized Ayurvedic prophylactic-therapeutic strategy based on the DOTS model. Person-centered body purificatory measures (panchakarma procedures) like therapeutic purgation (virechana) and medicated enema (basti) are suggested in this hypothetical protocol with justification on evidence-based links between immune responses and prakruti along with specific jwara (fevers of varied origin as per Ayurvedic sciences) and COVID-19 symptomatology. The paper also appraises the importance of pitta dosha/ama dosha in the manifestation of inflammation driven destructive phase of immune responses along with its stage-wise intervention. This hypothetical model intends to open up discussions on significance of prakruti assessment as a predictive marker to screen people who are at risk of succumbing into deteriorating states if infected with COVID-19. It also intends to discuss the predictive personalized medicine measures based on prakruti in yielding individual host immune homeostasis which may positively reduce the chances of untoward events of an aggravated immune responsiveness and subsequent inflammation driven tissue destruction – the candidate causes for COVID-19 related casualties. Testing this model may give insight towards emphasizing personalized host immune coping mechanisms that may prove crucial in any infectious outbreaks in near future too.
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40
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Abstract
Organisms clear infections by mounting an immune response that is normally turned off once the pathogens have been cleared. However, sometimes this immune response is not properly or timely arrested, resulting in the host damaging itself. This immune dysregulation may be referred to as immunopathology. While our knowledge of immune and metabolic pathways in insects, particularly in response to viral infections, is growing, little is known about the mechanisms that regulate this immune response and hence little is known about immunopathology in this important and diverse group of organisms. In this chapter we focus both on documenting the molecular mechanisms described involved in restoring immune homeostasis in insects after viral infections and on identifying potential mechanisms for future investigation. We argue that learning about the immunopathological consequences of an improperly regulated immune response in insects will benefit both insect and human health.
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Affiliation(s)
| | - Marta L Wayne
- Department of Biology, University of Florida, Gainesville, FL, United States
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41
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Samson LD, H Boots AM, Ferreira JA, J Picavet HS, de Rond LGH, de Zeeuw-Brouwer ML, Monique Verschuren WM, Buisman AM, Engelfriet P. In-depth immune cellular profiling reveals sex-specific associations with frailty. Immun Ageing 2020; 17:20. [PMID: 32582361 PMCID: PMC7310472 DOI: 10.1186/s12979-020-00191-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 06/11/2020] [Indexed: 01/12/2023]
Abstract
Background With advancing age, the composition of leukocyte subpopulations in peripheral blood is known to change, but how this change differs between men and women and how it relates to frailty is poorly understood. Our aim in this exploratory study was to investigate whether frailty is associated with changes in immune cell subpopulations and whether this differs between men and women. Therefore, we performed in-depth immune cellular profiling by enumerating a total of 37 subpopulations of T cells, B cells, NK cells, monocytes, and neutrophils in peripheral blood of 289 elderly people between 60-87 years of age. Associations between frailty and each immune cell subpopulation were tested separately in men and women and were adjusted for age and CMV serostatus. In addition, a random forest algorithm was used to predict a participant’s frailty score based on enumeration of immune cell subpopulations. Results In the association study, frailty was found to be associated with increased numbers of neutrophils in both men and in women. Frailer women, but not men, showed higher numbers of total and CD16- monocytes, and lower numbers of both CD56+ T cells and late differentiated CD4+ TemRA cells. The random forest algorithm confirmed all the findings of the association studies in men and women. In men, the predictive accuracy of the algorithm was too low (5.5%) to warrant additional conclusions on top of the ones derived from the association study. In women however, the predictive accuracy was higher (23.1%), additionally revealing that total T cell numbers and total lymphocyte numbers also contribute in predicting frailty. Conclusions In-depth immune cellular profiling revealed consistent associations of frailty with elevated numbers of myeloid cell subpopulations in both men and women. Furthermore, additional associations were found between frailty and lower numbers of some T cell subpopulations, in women only. Thus, our study indicates sex-specific associations of immune subpopulations with frailty. We hope that our study will prompt further investigation into the sex-specific immune mechanisms associated with the development of frailty.
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Affiliation(s)
- Leonard Daniël Samson
- National Institute of Public Health and the Environment, Bilthoven, 3722 BA Netherlands.,Department of Rheumatology and Clinical Immunology, University Medical Center Groningen, University of Groningen, Groningen, 9727 Netherlands
| | - A Mieke H Boots
- Department of Rheumatology and Clinical Immunology, University Medical Center Groningen, University of Groningen, Groningen, 9727 Netherlands
| | - José A Ferreira
- National Institute of Public Health and the Environment, Bilthoven, 3722 BA Netherlands
| | - H Susan J Picavet
- National Institute of Public Health and the Environment, Bilthoven, 3722 BA Netherlands
| | - Lia G H de Rond
- National Institute of Public Health and the Environment, Bilthoven, 3722 BA Netherlands
| | | | - W M Monique Verschuren
- National Institute of Public Health and the Environment, Bilthoven, 3722 BA Netherlands.,Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Utrecht, 3553 Netherlands
| | - Anne-Marie Buisman
- National Institute of Public Health and the Environment, Bilthoven, 3722 BA Netherlands
| | - Peter Engelfriet
- National Institute of Public Health and the Environment, Bilthoven, 3722 BA Netherlands
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42
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Tao C, Zhang Q, Zeng W, Liu G, Shao H. The effect of antibiotic cocktails on host immune status is dynamic and does not always correspond to changes in gut microbiota. Appl Microbiol Biotechnol 2020; 104:4995-5009. [PMID: 32303819 DOI: 10.1007/s00253-020-10611-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Revised: 03/29/2020] [Accepted: 04/05/2020] [Indexed: 12/22/2022]
Abstract
The disruption of the gut microbiota by treatment with an antibiotic cocktail (ABx) can trigger an imbalance in immune homeostasis. However, whether the changes in the intestinal microbiota always correspond to the changes in the physiology and immune homeostasis of the host remains unclear. Here, we analyzed the effects of ABx on immune homeostasis by analyzing the colonic transcriptome with 16S rRNA analysis of the gut microbiota on the 7th and 21st days of continuous treatment with ABx. Our results showed that the composition profile of the gut microbiota was similar after 7 and 21 days of ABx treatment. However, after 21 days of ABx treatment, the intestinal inflammation did not deteriorate further. Instead, the inflammation of the host was relieved, and half of the differentially expressed genes in the colon were restored compared with the 7 days of ABx treatment. Furthermore, the enrichment and network analysis of these restored genes indicated that expression of regenerating islet-derived protein 3β (Reg3b) and expression of regenerating islet-derived protein 3γ (Reg3g), especially Reg3b, may participate in the regulation of the inflammatory response and affect the changes in host immune homeostasis during continuous ABx treatment. Finally, Spearman's correlation analysis showed that the expression of Reg3b is correlated with the growth of Escherichia-Shigella. Our data demonstrated that even though the disruption of the gut microbiota profile induced by ABx treatment is similar, the host response and immune status will be different at different times.Key Points• Host immune status can change in different ABx treatment times.• Gut microbiota showed same exhaustion state in different ABx treatment times.• Host tried to revert to a certain extent after long-term ABx treatment.• Reg3b may affect the changes in host immune homeostasis during continuous ABx treatment.• The expression of Reg3b correlated with the growth of Escherichia-Shigella.
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Affiliation(s)
- Changli Tao
- Guangdong Province Key Laboratory for Biotechnology Drug Candidates, School of Biosciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, 510006, China.
| | - Qin Zhang
- Guangdong Province Key Laboratory for Biotechnology Drug Candidates, School of Biosciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Wenjing Zeng
- Guangdong Province Key Laboratory for Biotechnology Drug Candidates, School of Biosciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, 510006, China
| | - Gongliang Liu
- College of Light Industry and Food Science, Zhongkai University of Agriculture and Engineering, Guangzhou, 510225, China
| | - Hongwei Shao
- Guangdong Province Key Laboratory for Biotechnology Drug Candidates, School of Biosciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, 510006, China.
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Schwab AD, Thurston MJ, Machhi J, Olson KE, Namminga KL, Gendelman HE, Mosley RL. Immunotherapy for Parkinson's disease. Neurobiol Dis 2020; 137:104760. [PMID: 31978602 PMCID: PMC7933730 DOI: 10.1016/j.nbd.2020.104760] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 12/23/2019] [Accepted: 01/20/2020] [Indexed: 12/31/2022] Open
Abstract
With the increasing prevalence of Parkinson’s disease (PD), there is an immediate need to interdict disease signs and symptoms. In recent years this need was met through therapeutic approaches focused on regenerative stem cell replacement and alpha-synuclein clearance. However, neither have shown long-term clinical benefit. A novel therapeutic approach designed to affect disease is focused on transforming the brain’s immune microenvironment. As disordered innate and adaptive immune functions are primary components of neurodegenerative disease pathogenesis, this has emerged as a clear opportunity for therapeutic development. Interventions that immunologically restore the brain’s homeostatic environment can lead to neuroprotective outcomes. These have recently been demonstrated in both laboratory and early clinical investigations. To these ends, efforts to increase the numbers and function of regulatory T cells over dominant effector cells that exacerbate systemic inflammation and neurodegeneration have emerged as a primary research focus. These therapeutics show broad promise in affecting disease outcomes beyond PD, such as for Alzheimer’s disease, stroke and traumatic brain injuries, which share common neurodegenerative disease processes.
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Affiliation(s)
- Aaron D Schwab
- Department of Pharmacology and Experimental Neuroscience, Center for Neurodegenerative Disorders, University of Nebraska Medical Center, Omaha, NE 68198-5110, United States of America
| | - Mackenzie J Thurston
- Department of Pharmacology and Experimental Neuroscience, Center for Neurodegenerative Disorders, University of Nebraska Medical Center, Omaha, NE 68198-5110, United States of America
| | - Jatin Machhi
- Department of Pharmacology and Experimental Neuroscience, Center for Neurodegenerative Disorders, University of Nebraska Medical Center, Omaha, NE 68198-5110, United States of America
| | - Katherine E Olson
- Department of Pharmacology and Experimental Neuroscience, Center for Neurodegenerative Disorders, University of Nebraska Medical Center, Omaha, NE 68198-5110, United States of America
| | - Krista L Namminga
- Department of Pharmacology and Experimental Neuroscience, Center for Neurodegenerative Disorders, University of Nebraska Medical Center, Omaha, NE 68198-5110, United States of America
| | - Howard E Gendelman
- Department of Pharmacology and Experimental Neuroscience, Center for Neurodegenerative Disorders, University of Nebraska Medical Center, Omaha, NE 68198-5110, United States of America.
| | - R Lee Mosley
- Department of Pharmacology and Experimental Neuroscience, Center for Neurodegenerative Disorders, University of Nebraska Medical Center, Omaha, NE 68198-5110, United States of America
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44
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Proschinger S, Joisten N, Rademacher A, Schlagheck ML, Walzik D, Metcalfe AJ, Oberste M, Warnke C, Bloch W, Schenk A, Bansi J, Zimmer P. Influence of combined functional resistance and endurance exercise over 12 weeks on matrix metalloproteinase-2 serum concentration in persons with relapsing-remitting multiple sclerosis - a community-based randomized controlled trial. BMC Neurol 2019; 19:314. [PMID: 31810462 PMCID: PMC6898928 DOI: 10.1186/s12883-019-1544-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 11/26/2019] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND The relevance of regular moderate to intense exercise for ameliorating psychomotor symptoms in persons with multiple sclerosis (pwMS) is becoming increasingly evident. Over the last two decades, emerging evidence from clinical studies and animal models indicate immune regulatory mechanisms in both periphery and the central nervous system that may underlie these beneficial effects. The integrity of the blood-brain barrier as the main structural interface between periphery and brain seems to play an important role in MS. Reducing the secretion of proteolytic matrix metalloproteinases (MMP), i.e. MMP-2, as disruptors of blood-brain barrier integrity could have profound implications for MS. METHODS In this two-armed randomized controlled trial 64 participants with relapsing-remitting MS (RRMS) (EDSS 0-4.0) will be allocated to either an intervention group or a passive wait list control group. The intervention group will perform 60 min of combined functional resistance and endurance exercises 3x per week over a period of 12 weeks in a community-based and publicly available setting. Changes in serum concentration of MMP-2 will be the primary outcome. Secondary outcomes are numbers of immune cell subsets, soluble (anti-) inflammatory factors, physical capacity, cognitive performance, physical activity behavior, gait performance, and patient-reported outcomes. All outcome measures will be assessed at baseline and after week 12 with an additional blood sampling before, during and immediately after a single training session in week 6. DISCUSSION To our knowledge, this will be the first RCT to investigate both the acute and chronic effects of a community-based intense functional resistance and endurance exercise regimen in persons with RRMS. Combining analysis of biological and cognitive or psychological outcomes may provide a better understanding of the MS-specific symptomology. TRIAL REGISTRATION DRKS00017091; 05th of April, 2019; International Clinical Trials Registry Platform.
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Affiliation(s)
- Sebastian Proschinger
- Department for Molecular and Cellular Sports Medicine, Institute for Cardiovascular Research and Sports Medicine, German Sport University Cologne, Cologne, Germany
| | - Niklas Joisten
- Department for Molecular and Cellular Sports Medicine, Institute for Cardiovascular Research and Sports Medicine, German Sport University Cologne, Cologne, Germany
| | - Annette Rademacher
- Department for Molecular and Cellular Sports Medicine, Institute for Cardiovascular Research and Sports Medicine, German Sport University Cologne, Cologne, Germany
| | - Marit L Schlagheck
- Department for Molecular and Cellular Sports Medicine, Institute for Cardiovascular Research and Sports Medicine, German Sport University Cologne, Cologne, Germany
| | - David Walzik
- Department for Molecular and Cellular Sports Medicine, Institute for Cardiovascular Research and Sports Medicine, German Sport University Cologne, Cologne, Germany
| | - Alan J Metcalfe
- Department for Molecular and Cellular Sports Medicine, Institute for Cardiovascular Research and Sports Medicine, German Sport University Cologne, Cologne, Germany
| | - Max Oberste
- Department for Molecular and Cellular Sports Medicine, Institute for Cardiovascular Research and Sports Medicine, German Sport University Cologne, Cologne, Germany
| | - Clemens Warnke
- Department of Neurology, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany
| | - Wilhelm Bloch
- Department for Molecular and Cellular Sports Medicine, Institute for Cardiovascular Research and Sports Medicine, German Sport University Cologne, Cologne, Germany
| | - Alexander Schenk
- Department for Molecular and Cellular Sports Medicine, Institute for Cardiovascular Research and Sports Medicine, German Sport University Cologne, Cologne, Germany
| | - Jens Bansi
- Deparment of Neurology, Kliniken-Valens, Rehabilitationsklinik-Valens, Taminaplatz 1, 7317, Valens, Switzerland
| | - Philipp Zimmer
- Department for Molecular and Cellular Sports Medicine, Institute for Cardiovascular Research and Sports Medicine, German Sport University Cologne, Cologne, Germany.
- Department of Exercise and Health, Institute of Sports Science, Leibniz University Hannover, Hannover, Germany.
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45
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Qu C, Yang W, Xu Q, Sun J, Lu M, Wang Y, Liu C, Wang W, Wang L, Song L. A novel effector caspase (Caspase-3/7-1) involved in the regulation of immune homeostasis in Chinese mitten crab Eriocheir sinensis. Fish Shellfish Immunol 2018; 83:76-83. [PMID: 30195917 DOI: 10.1016/j.fsi.2018.09.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Revised: 08/26/2018] [Accepted: 09/05/2018] [Indexed: 06/08/2023]
Abstract
Caspases are a conserved family of cysteine proteases characterized by specificity for aspartic acid and play an essential role in cell apoptosis. In the present study, a novel effector caspase (designated as EsCaspase-3/7-1) was identified from Chinese mitten crab Eriocheir sinensis. The open reading frame of EsCaspase-3/7-1 cDNA was of 972 bp, encoding a polypeptide of 323 amino acids. EsCaspase-3/7-1 contained an N-terminal prodomain and a conservative C-terminal CASc domain, with the conserved active site "QACRG". The mRNA transcripts of EsCaspase-3/7-1 were constitutively expressed in all the examined tissues with high expression level in hemocytes, hepatopancreas and gill. The EsCaspase-3/7-1 protein was mainly distributed in the cytoplasm of hemocytes. After Aeromonas hydrophila and lipopolysaccharide (LPS) stimulations, the mRNA expression level of EsCaspase-3/7-1 in hemocytes increased significantly. The mRNA expression level of EsCaspase-3/7-1 in hemocytes was significantly up-regulated after H2O2 treatment in vitro. The recombinant EsCaspase-3/7-1 protein (rEsCaspase-3/7-1) was capable of hydrolyzing the substrate Ac-DEVD-pNA rather than Ac-YVAD-pNA and Ac-VEID-pNA in vitro, and exhibited binding activity to LPS. These results demonstrated that EsCaspase-3/7-1 might act as an LPS receptor, and play an important role in the regulation of immune homeostasis of E. sinensis.
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Affiliation(s)
- Chen Qu
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Liaoning Key Laboratory of Marine Animal Immunology & Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Wen Yang
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China
| | - Qingsong Xu
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China
| | - Jiejie Sun
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China
| | - Mengmeng Lu
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China
| | - Ying Wang
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China
| | - Chao Liu
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China
| | - Weilin Wang
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China
| | - Lingling Wang
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Laboratory of Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China
| | - Linsheng Song
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Laboratory of Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China; Liaoning Key Laboratory of Marine Animal Immunology & Disease Control, Dalian Ocean University, Dalian, 116023, China.
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Abstract
Innate lymphoid cells (ILCs) are increasingly being recognized for their ability to impact both innate and adaptive immune cells in diverse contexts. ILCs have been observed in all secondary lymphoid tissues, in addition to being tissue-resident innate lymphocytes. In these locations, ILCs are poised to interact with various immune cells at different stages of an immune response. While the heterogeneity and plasticity of ILCs has complicated their study, their association with immune dysregulation in a wide range of pathologies highlights their importance to human health and disease. Notably, in addition to promoting inflammatory immune responses, populations of ILCs have been shown to inhibit immune responses through a variety of mechanisms. The reports of ILC-mediated regulation of immune responses have differed in terms of the phenotype of the regulatory ILC populations, and their mechanism of action. Yet the ability to modulate immune responses appears to be an important function of ILCs. As our understanding of this family of lymphocytes evolves, delineating the factors that dictate whether ILCs orchestrate inflammatory immune responses or suppresses these responses will be important for understanding various disease mechanisms. Here we focus on recent reports that examine how ILCs regulate immunity in different contexts.
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47
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Abstract
In the periphery, homeostasis of the immune system depends on the equilibrium of expanding and contracting T lymphocytes during immune response. An important mechanism of lymphocyte contraction is clonal depletion of activated T cells by cytokine withdrawal induced death (CWID) and TCR restimulation induced cell death (RICD). Deficiencies in signaling components for CWID and RICD leads to autoimmunune lymphoproliferative disorders in mouse and human. The most important feature of CWID and RICD is clonal specificity, which lends great appeal as a strategy for targeted tolerance induction and treatment of autoimmune diseases, allergic disorders, and graft rejection by depleting undesired disease-causing T cells while keeping the overall host immunity intact.
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Affiliation(s)
- Lixin Zheng
- Laboratory of Immunology and Clinical Genomics Program, Molecular Development of the Immune System Section, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Jian Li
- Laboratory of Immunology and Clinical Genomics Program, Molecular Development of the Immune System Section, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA.,Institute of Immunology, Third Military Medical University, Chongqing, China
| | - Michael Lenardo
- Laboratory of Immunology and Clinical Genomics Program, Molecular Development of the Immune System Section, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
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48
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Kaminitz A, Ash S, Askenasy N. Neutralization Versus Reinforcement of Proinflammatory Cytokines to Arrest Autoimmunity in Type 1 Diabetes. Clin Rev Allergy Immunol 2018; 52:460-472. [PMID: 27677500 DOI: 10.1007/s12016-016-8587-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
As physiological pathways of intercellular communication produced by all cells, cytokines are involved in the pathogenesis of inflammatory insulitis as well as pivotal mediators of immune homeostasis. Proinflammatory cytokines including interleukins, interferons, transforming growth factor-β, tumor necrosis factor-α, and nitric oxide promote destructive insulitis in type 1 diabetes through amplification of the autoimmune reaction, direct toxicity to β-cells, and sensitization of islets to apoptosis. The concept that neutralization of cytokines may be of therapeutic benefit has been tested in few clinical studies, which fell short of inducing sustained remission or achieving disease arrest. Therapeutic failure is explained by the redundant activities of individual cytokines and their combinations, which are rather dispensable in the process of destructive insulitis because other cytolytic pathways efficiently compensate their deficiency. Proinflammatory cytokines are less redundant in regulation of the inflammatory reaction, displaying protective effects through restriction of effector cell activity, reinforcement of suppressor cell function, and participation in islet recovery from injury. Our analysis suggests that the role of cytokines in immune homeostasis overrides their contribution to β-cell death and may be used as potent immunomodulatory agents for therapeutic purposes rather than neutralized.
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Affiliation(s)
- Ayelet Kaminitz
- The Leah and Edward M. Frankel Laboratory of Experimental Bone Marrow Transplantation, 14 Kaplan Street, Petach Tikva, Israel, 49202
| | - Shifra Ash
- The Leah and Edward M. Frankel Laboratory of Experimental Bone Marrow Transplantation, 14 Kaplan Street, Petach Tikva, Israel, 49202
| | - Nadir Askenasy
- The Leah and Edward M. Frankel Laboratory of Experimental Bone Marrow Transplantation, 14 Kaplan Street, Petach Tikva, Israel, 49202.
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49
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da Gama Duarte J, Woods K, Andrews MC, Behren A. The good, the (not so) bad and the ugly of immune homeostasis in melanoma. Immunol Cell Biol 2018; 96:497-506. [PMID: 29392770 DOI: 10.1111/imcb.12001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Revised: 12/05/2017] [Accepted: 12/06/2017] [Indexed: 12/24/2022]
Abstract
Within the immune system multiple mechanisms balance the need for efficient pathogen recognition and destruction with the prevention of tissue damage by excessive, inappropriate or even self-targeting (auto)immune reactions. This immune homeostasis is a tightly regulated system which fails during tumor development, often due to the hijacking of its essential self-regulatory mechanisms by cancer cells. It is facilitated not only by tumor intrinsic properties, but also by the microbiome, host genetics and other factors. In certain ways many cancers can therefore be considered a rare failure of immune control rather than an uncommon or rare disease of the tissue of origin, as the acquisition of potentially oncogenic traits through mutation occurs constantly in most tissues during proliferation. Normally, aberrant cells are well-controlled by cell intrinsic (repair or apoptosis) and extrinsic (immune) mechanisms. However, occasionally oncogenic cells survive and escape control. Melanoma is one of the first cancer types where treatments aimed at restoring and enhancing an immune response to regain control over the tumor have been used with various success rates. With the advent of "modern" immunotherapeutics such as anti-CTLA-4 or anti-PD-1 antibodies that both target negative immune-regulatory pathways on immune cells resulting in durable responses in a proportion of patients, the importance of the interplay between the immune system and cancer has been established beyond doubt.
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Affiliation(s)
- Jessica da Gama Duarte
- Olivia Newton-John Cancer Research Institute, Heidelberg, VIC, Australia.,School of Cancer Medicine, La Trobe University, Bundoora, VIC, Australia
| | - Katherine Woods
- Olivia Newton-John Cancer Research Institute, Heidelberg, VIC, Australia.,School of Cancer Medicine, La Trobe University, Bundoora, VIC, Australia
| | - Miles C Andrews
- School of Cancer Medicine, La Trobe University, Bundoora, VIC, Australia.,MD Anderson Cancer Center, University of Texas, Houston, TX, USA
| | - Andreas Behren
- Olivia Newton-John Cancer Research Institute, Heidelberg, VIC, Australia.,School of Cancer Medicine, La Trobe University, Bundoora, VIC, Australia
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50
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Duncan CJA, Dinnigan E, Theobald R, Grainger A, Skelton AJ, Hussain R, Willet JDP, Swan DJ, Coxhead J, Thomas MF, Thomas J, Zamvar V, Slatter MA, Cant AJ, Engelhardt KR, Hambleton S. Early-onset autoimmune disease due to a heterozygous loss-of-function mutation in TNFAIP3 (A20). Ann Rheum Dis 2017; 77:783-786. [PMID: 28659290 PMCID: PMC5909743 DOI: 10.1136/annrheumdis-2016-210944] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Revised: 04/24/2017] [Accepted: 05/18/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Christopher J A Duncan
- Primary Immunodeficiency Group, Institute for Cellular Medicine, Newcastle University, UK
| | - Emma Dinnigan
- Primary Immunodeficiency Group, Institute for Cellular Medicine, Newcastle University, UK
| | - Rachel Theobald
- Primary Immunodeficiency Group, Institute for Cellular Medicine, Newcastle University, UK
| | - Angela Grainger
- Primary Immunodeficiency Group, Institute for Cellular Medicine, Newcastle University, UK
| | - Andrew J Skelton
- Bioinformatics Support Unit, Institute for Cellular Medicine, Newcastle University, UK
| | - Rafiqul Hussain
- Genomic Core Facility, Institute for Genetic Medicine, Newcastle University, UK
| | - Joseph D P Willet
- Primary Immunodeficiency Group, Institute for Cellular Medicine, Newcastle University, UK
| | - David J Swan
- Primary Immunodeficiency Group, Institute for Cellular Medicine, Newcastle University, UK
| | - Jonathan Coxhead
- Genomic Core Facility, Institute for Genetic Medicine, Newcastle University, UK
| | - Matthew F Thomas
- Department of Paediatric Respiratory Medicine, Great North Children's Hospital, Royal Victoria Infirmary, UK
| | - Julian Thomas
- Department of Paediatric Gastroenterology, Great North Children's Hospital, Royal Victoria Infirmary, UK
| | - Veena Zamvar
- Department of Paediatric Gastroenterology, Leeds General Infirmary, UK
| | - Mary A Slatter
- Department of Paediatric Immunology and Stem Cell Transplant Unit, Great North Children's Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, UK
| | - Andrew J Cant
- Department of Paediatric Immunology and Stem Cell Transplant Unit, Great North Children's Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, UK
| | - Karin R Engelhardt
- Primary Immunodeficiency Group, Institute for Cellular Medicine, Newcastle University, UK
| | - Sophie Hambleton
- Primary Immunodeficiency Group, Institute for Cellular Medicine, Newcastle University, UK.,Department of Paediatric Immunology and Stem Cell Transplant Unit, Great North Children's Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, UK
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