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Jin G, Liu Y, Xu W, Li Y, Zhang H, Qiu S, Gao C, Liu S. Tnfaip2 promotes atherogenesis by enhancing oxidative stress induced inflammation. Mol Immunol 2022; 151:41-51. [PMID: 36084515 DOI: 10.1016/j.molimm.2022.08.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 08/09/2022] [Accepted: 08/29/2022] [Indexed: 11/18/2022]
Abstract
The inflammation is considered to be the crucial determinants of lesion progression and plaque stability during atherogenesis. Tnfaip2 appears to be a regulator for carcinogenesis and infectious diseases. But its role in atherosclerosis is not clear. Here we first report that Tnfaip2 promotes the formation of atherosclerosis through enhancing the inflammation under oxidative stress condition. Although the endogenous expression of Tnfaip2 was upregulated under oxidative stress condition, the overexpressed Tnfaip2 could promote cells proliferation. This might result from the ability of promoting cells entering G2/M phase. Conversely, the cells proliferation and migration were significantly reduced in Tnfaip2 knockdown cells through inhibiting the activation of NF-κB/MAPK/Akt signaling pathways. However, the efferocytosis increased markedly due to the upregulation of "eat me" receptors, such as CD36, SR-A, and SR-B1, and the downregulation of "don't eat me" signal CD47. As a consequence, Tnfaip2 deficiency in bone marrow-derived cells inhibited atherosclerosis development in Ldlr-/- mice fed a high-fat diet accompanied by decreased inflammatory cytokines and shTnfaip2 could reduce the plaque lesions in ApoE-/- mice. These results indicate that Tnfaip2 might play an important role during atherogenesis.
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Affiliation(s)
- Guiyuan Jin
- Department of Immunology, Key Laboratory of Infection and Immunity of Shandong Province, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Ji'nan, PR China; Medical Research Centre, Affiliated Hospital of Ji'ning Medical University, Ji'ning, Shandong Province, PR China
| | - Ying Liu
- Department of Immunology, Key Laboratory of Infection and Immunity of Shandong Province, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Ji'nan, PR China
| | - Wenwen Xu
- Department of Immunology, Key Laboratory of Infection and Immunity of Shandong Province, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Ji'nan, PR China
| | - Yan Li
- Department of Blood Transfusion, Qilu Hospital of Shandong University, Ji'nan, PR China
| | - Heng Zhang
- Department of Immunology, Key Laboratory of Infection and Immunity of Shandong Province, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Ji'nan, PR China
| | - Shuoke Qiu
- Department of Immunology, Key Laboratory of Infection and Immunity of Shandong Province, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Ji'nan, PR China
| | - Chengjiang Gao
- Department of Immunology, Key Laboratory of Infection and Immunity of Shandong Province, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Ji'nan, PR China
| | - Suxia Liu
- Department of Immunology, Key Laboratory of Infection and Immunity of Shandong Province, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Ji'nan, PR China.
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Gaur P, Zaffran I, George T, Alekberli FR, Ben-Zimra M, Levi-Schaffer F. The regulatory role of eosinophils in viral, bacterial, and fungal infections. Clin Exp Immunol 2022; 209:72-82. [PMID: 35467728 PMCID: PMC9307229 DOI: 10.1093/cei/uxac038] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 03/15/2022] [Accepted: 04/24/2022] [Indexed: 12/14/2022] Open
Abstract
Eosinophils are innate immune cells typically associated with allergic and parasitic diseases. However, in recent years, eosinophils have also been ascribed a role in keeping homeostasis and in fighting several infectious diseases. Indeed, these cells circulate as mature cells in the blood and can be quickly recruited to the infected tissue. Moreover, eosinophils have all the necessary cellular equipment such as pattern recognition receptors (PRRs), pro-inflammatory cytokines, anti-bacterial proteins, and DNA traps to fight pathogens and promote an efficient immune response. This review summarizes some of the updated information on the role of eosinophils' direct and indirect mediated interactions with pathogens.
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Affiliation(s)
- Pratibha Gaur
- Pharmacology and Experimental Therapeutics Unit, School of Pharmacy, Institute for Drug Research, Faculty of Medicine, The Hebrew University of Jerusalem, Israel
| | - Ilan Zaffran
- Pharmacology and Experimental Therapeutics Unit, School of Pharmacy, Institute for Drug Research, Faculty of Medicine, The Hebrew University of Jerusalem, Israel
| | - Tresa George
- Pharmacology and Experimental Therapeutics Unit, School of Pharmacy, Institute for Drug Research, Faculty of Medicine, The Hebrew University of Jerusalem, Israel
| | - Fidan Rahimli Alekberli
- Pharmacology and Experimental Therapeutics Unit, School of Pharmacy, Institute for Drug Research, Faculty of Medicine, The Hebrew University of Jerusalem, Israel
| | - Micha Ben-Zimra
- Pharmacology and Experimental Therapeutics Unit, School of Pharmacy, Institute for Drug Research, Faculty of Medicine, The Hebrew University of Jerusalem, Israel
| | - Francesca Levi-Schaffer
- Pharmacology and Experimental Therapeutics Unit, School of Pharmacy, Institute for Drug Research, Faculty of Medicine, The Hebrew University of Jerusalem, Israel
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Klaile E, Prada Salcedo JP, Klassert TE, Besemer M, Bothe AK, Durotin A, Müller MM, Schmitt V, Luther CH, Dittrich M, Singer BB, Dandekar T, Slevogt H. Antibody ligation of CEACAM1, CEACAM3, and CEACAM6, differentially enhance the cytokine release of human neutrophils in responses to Candida albicans. Cell Immunol 2021; 371:104459. [PMID: 34847408 DOI: 10.1016/j.cellimm.2021.104459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 10/27/2021] [Accepted: 11/15/2021] [Indexed: 11/30/2022]
Abstract
Invasive candidiasis is a healthcare-associated fungal infection with a high mortality rate. Neutrophils, the first line of defense during fungal infections, express the immunoregulatory Candida albicans receptors CEACAM1, CEACAM3, and CEACAM6. We analyzed the effects of specific antibodies on C. albicans-induced neutrophil responses. CEACAM6 ligation by 1H7-4B and to some extent CEACAM1 ligation by B3-17, but not CEACAM3 ligation by 308/3-3, resulted in the immediate release of stored CXCL8 and altered transcriptional responses of the C. albicans-stimulated neutrophils. Integrated network analyses and dynamic simulations of signaling cascades predicted alterations in apoptosis and cytokine secretion. We verified that CEACAM6 ligation enhanced Candida-induced neutrophil apoptosis and increased long-term IL-1β/IL-6 release in responses to C. albicans. CEACAM3 ligation, but not CEACAM1 ligation, increased the long-term release of pro-inflammatory IL-1β/IL-6. Taken together, we demonstrated for the first time that ligation of CEACAM receptors differentially affects the regulation of C. albicans-induced immune functions in human neutrophils.
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Affiliation(s)
- Esther Klaile
- ZIK Septomics, University Hospital Jena, Albert-Einstein-Straße 10, 07749 Jena, Germany.
| | - Juan P Prada Salcedo
- Dept. of Bioinformatics, University of Würzburg, Biocenter/Am Hubland, 97074 Würzburg, Germany.
| | - Tilman E Klassert
- ZIK Septomics, University Hospital Jena, Albert-Einstein-Straße 10, 07749 Jena, Germany.
| | - Matthias Besemer
- ZIK Septomics, University Hospital Jena, Albert-Einstein-Straße 10, 07749 Jena, Germany.
| | - Anne-Katrin Bothe
- ZIK Septomics, University Hospital Jena, Albert-Einstein-Straße 10, 07749 Jena, Germany.
| | - Adrian Durotin
- ZIK Septomics, University Hospital Jena, Albert-Einstein-Straße 10, 07749 Jena, Germany.
| | - Mario M Müller
- ZIK Septomics, University Hospital Jena, Albert-Einstein-Straße 10, 07749 Jena, Germany.
| | - Verena Schmitt
- Institute of Anatomy, University Hospital, University Duisburg-Essen, Hufelandstraße 55, 45122 Essen, Germany.
| | - Christian H Luther
- Dept. of Bioinformatics, University of Würzburg, Biocenter/Am Hubland, 97074 Würzburg, Germany.
| | - Marcus Dittrich
- Dept. of Bioinformatics, University of Würzburg, Biocenter/Am Hubland, 97074 Würzburg, Germany; Dept. of Human Genetics, University of Würzburg, Biocenter/Am Hubland, 97074 Würzburg, Germany.
| | - Bernhard B Singer
- Institute of Anatomy, University Hospital, University Duisburg-Essen, Hufelandstraße 55, 45122 Essen, Germany.
| | - Thomas Dandekar
- Dept. of Bioinformatics, University of Würzburg, Biocenter/Am Hubland, 97074 Würzburg, Germany.
| | - Hortense Slevogt
- ZIK Septomics, University Hospital Jena, Albert-Einstein-Straße 10, 07749 Jena, Germany.
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