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McFadden MJ, Reynolds MB, Michmerhuizen BC, Ólafsson EB, Anderson FM, Schultz TL, O’Riordan MX, O’Meara TR. Non-canonical activation of IRE1α during Candida albicans infection enhances macrophage fungicidal activity. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.10.02.560560. [PMID: 37873171 PMCID: PMC10592910 DOI: 10.1101/2023.10.02.560560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
While the canonical function of IRE1α is to detect misfolded proteins and activate the unfolded protein response (UPR) to maintain cellular homeostasis, microbial pathogens can also activate IRE1α, which modulates innate immunity and infection outcomes. However, how infection activates IRE1α and its associated inflammatory functions have not been fully elucidated. Recognition of microbe-associated molecular patterns can activate IRE1α, but it is unclear whether this depends on protein misfolding. Here, we report that a common and deadly fungal pathogen, Candida albicans, activates macrophage IRE1α through C-type lectin receptor signaling, reinforcing a role for IRE1α as a central regulator of host responses to infection by a broad range of pathogens. This activation did not depend on protein misfolding in response to C. albicans infection. Moreover, lipopolysaccharide treatment was also able to activate IRE1α prior to protein misfolding, suggesting that pathogen-mediated activation of IRE1α occurs through non-canonical mechanisms. During C. albicans infection, we observed that IRE1α activity promotes phagolysosomal fusion that supports the fungicidal activity of macrophages. Consequently, macrophages lacking IRE1α activity displayed inefficient phagosome maturation, enabling C. albicans to lyse the phagosome, evade fungal killing, and drive aberrant inflammatory cytokine production. Mechanistically, we show that IRE1α activity supports phagosomal calcium flux after phagocytosis of C. albicans, which is crucial for phagosome maturation. Importantly, deletion of IRE1α activity decreased the fungicidal activity of phagocytes in vivo during systemic C. albicans infection. Together, these data provide mechanistic insight for the non-canonical activation of IRE1α during infection, and reveal central roles for IRE1α in macrophage antifungal responses.
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Affiliation(s)
- Michael J. McFadden
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Mack B. Reynolds
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI 48109, USA
| | | | - Einar B. Ólafsson
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Faith M. Anderson
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Tracey L. Schultz
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Mary X.D. O’Riordan
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Teresa R. O’Meara
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, MI 48109, USA
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2
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Hwang SH, Jang HA, Kojour MAM, Yun K, Lee YS, Han YS, Jo YH. Effects of TmTak1 silencing on AMP production as an Imd pathway component in Tenebrio molitor. Sci Rep 2023; 13:18914. [PMID: 37919359 PMCID: PMC10622451 DOI: 10.1038/s41598-023-45978-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 10/26/2023] [Indexed: 11/04/2023] Open
Abstract
Mealworms beetles, Tenebrio molitor, are the limelight next-generation food for humans due to their high nutrient contents. Since Tenebrio molitor is used as feed for pets and livestock in addition to their ability to decompose polystyrene and plastic waste, it is recognized as an insect with an industrial core value. Therefore, it is important to study the immune mechanism related to the development and infection of mealworms for mass breeding purposes. The immune deficiency (Imd) signaling is one of the main pathways with pivotal roles in the production of antimicrobial peptides (AMPs). Transforming growth factor-β activated kinase (TAK1) is one of the Imd pathway components, forms a complex with TAK1 binding protein 2 (TAB2) to ultimately help activate the transcription factor Relish and eventually induce host to produce AMPs. Relatively, little has been revealed about TAK1 in insect models, especially in the T. molitor. Therefore, this study was conducted to elucidate the function of TmTak1 in T. molitor. Our results showed that the highest and lowest mRNA expression of TmTak1 were found in egg and young larvae respectively. The tissue-specific expression patterns were reported in the gut of T. molitor larvae and the fat bodies of adults. Systemic microbial challenge illustrated TmTak1 high expression following the fungal infection in all dissected tissues except for the whole body. However, silencing TmTak1 experiments showed that the survivability of T. molitor larvae affected significantly following Escherichia coli infection. Accordingly, AMP induction after TmTak1 knock down was mainly reported in the integument and the fat bodies.
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Affiliation(s)
- Su Hyeon Hwang
- Division of Plant Biotechnology, Institute of Environmentally-Friendly Agriculture (IEFA), College of Agriculture and Life Sciences, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Ho Am Jang
- Department of Biology, College of Natural Sciences, Soonchunhyang University, Asan, Chungnam, Republic of Korea
- Korea Native Animal Resources Utilization Convergence Research Institute (KNAR), Soonchunhyang University, Asan, Chungnam, Republic of Korea
| | - Maryam Ali Mohammadie Kojour
- Division of Plant Biotechnology, Institute of Environmentally-Friendly Agriculture (IEFA), College of Agriculture and Life Sciences, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Keunho Yun
- Division of Plant Biotechnology, Institute of Environmentally-Friendly Agriculture (IEFA), College of Agriculture and Life Sciences, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Yong Seok Lee
- Department of Biology, College of Natural Sciences, Soonchunhyang University, Asan, Chungnam, Republic of Korea
- Korea Native Animal Resources Utilization Convergence Research Institute (KNAR), Soonchunhyang University, Asan, Chungnam, Republic of Korea
| | - Yeon Soo Han
- Division of Plant Biotechnology, Institute of Environmentally-Friendly Agriculture (IEFA), College of Agriculture and Life Sciences, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Yong Hun Jo
- Department of Biology, College of Natural Sciences, Soonchunhyang University, Asan, Chungnam, Republic of Korea.
- Korea Native Animal Resources Utilization Convergence Research Institute (KNAR), Soonchunhyang University, Asan, Chungnam, Republic of Korea.
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3
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Zhang L, Chai D, Chen C, Li C, Qiu Z, Kuang T, Parveena M, Dong K, Yu J, Deng W, Wang W. Mycobiota and C-Type Lectin Receptors in Cancers: Know thy Neighbors. Front Microbiol 2022; 13:946995. [PMID: 35910636 PMCID: PMC9326027 DOI: 10.3389/fmicb.2022.946995] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 06/13/2022] [Indexed: 11/15/2022] Open
Abstract
Numerous studies have demonstrated the importance of gut bacteria in the development of malignancy, while relatively little research has been done on gut mycobiota. As a part of the gut microbiome, the percentage of gut mycobiota is negligible compared to gut bacteria. However, the effect of gut fungi on human health and disease is significant. This review systematically summarizes the research progress on mycobiota, especially gut fungi, in patients with head and neck cancer (HNC), esophageal cancer (EC), gastric cancer (GC), colorectal cancer (CRC), hepatocellular carcinoma (HCC), pancreatic cancer, melanoma, breast cancer, and lung carcinoma-induced cachexia. Moreover, we also describe, for the first time in detail, the role of the fungal recognition receptors, C-type lectin receptors (CLRs) (Dectin-1, Dectin-2, Dectin-3, and Mincle) and their downstream effector caspase recruitment domain-containing protein 9 (CARD9), in tumors to provide a reference for further research on intestinal fungi in the diagnosis and treatment of malignant tumors.
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Affiliation(s)
- Lilong Zhang
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, China
- Hubei Key Laboratory of Digestive System Disease, Wuhan, China
| | - Dongqi Chai
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, China
- Hubei Key Laboratory of Digestive System Disease, Wuhan, China
| | - Chen Chen
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Chunlei Li
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, China
- Hubei Key Laboratory of Digestive System Disease, Wuhan, China
| | - Zhendong Qiu
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, China
- Hubei Key Laboratory of Digestive System Disease, Wuhan, China
| | - Tianrui Kuang
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, China
- Hubei Key Laboratory of Digestive System Disease, Wuhan, China
| | - Mungur Parveena
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, China
- Hubei Key Laboratory of Digestive System Disease, Wuhan, China
| | - Keshuai Dong
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Jia Yu
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, China
| | - Wenhong Deng
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, China
- *Correspondence: Wenhong Deng,
| | - Weixing Wang
- Department of General Surgery, Renmin Hospital of Wuhan University, Wuhan, China
- Weixing Wang,
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4
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Nassar A, Ibrahim IM, Amin FG, Magdy M, Elgharib AM, Azzam EB, Nasser F, Yousry K, Shamkh IM, Mahdy SM, Elfiky AA. A Review of Human Coronaviruses' Receptors: The Host-Cell Targets for the Crown Bearing Viruses. Molecules 2021; 26:6455. [PMID: 34770863 PMCID: PMC8587140 DOI: 10.3390/molecules26216455] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 10/20/2021] [Accepted: 10/22/2021] [Indexed: 12/19/2022] Open
Abstract
A novel human coronavirus prompted considerable worry at the end of the year 2019. Now, it represents a significant global health and economic burden. The newly emerged coronavirus disease caused by the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) is the primary reason for the COVID-19 global pandemic. According to recent global figures, COVID-19 has caused approximately 243.3 million illnesses and 4.9 million deaths. Several human cell receptors are involved in the virus identification of the host cells and entering them. Hence, understanding how the virus binds to host-cell receptors is crucial for developing antiviral treatments and vaccines. The current work aimed to determine the multiple host-cell receptors that bind with SARS-CoV-2 and other human coronaviruses for the purpose of cell entry. Extensive research is needed using neutralizing antibodies, natural chemicals, and therapeutic peptides to target those host-cell receptors in extremely susceptible individuals. More research is needed to map SARS-CoV-2 cell entry pathways in order to identify potential viral inhibitors.
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Affiliation(s)
- Aaya Nassar
- Biophysics Department, Faculty of Science, Cairo University, Giza 12511, Egypt; (I.M.I.); (F.G.A.); (M.M.); (A.M.E.)
| | - Ibrahim M. Ibrahim
- Biophysics Department, Faculty of Science, Cairo University, Giza 12511, Egypt; (I.M.I.); (F.G.A.); (M.M.); (A.M.E.)
| | - Fatma G. Amin
- Biophysics Department, Faculty of Science, Cairo University, Giza 12511, Egypt; (I.M.I.); (F.G.A.); (M.M.); (A.M.E.)
- Physics Department, Faculty of Science, Alexandria University, Alexandria 21519, Egypt
| | - Merna Magdy
- Biophysics Department, Faculty of Science, Cairo University, Giza 12511, Egypt; (I.M.I.); (F.G.A.); (M.M.); (A.M.E.)
| | - Ahmed M. Elgharib
- Biophysics Department, Faculty of Science, Cairo University, Giza 12511, Egypt; (I.M.I.); (F.G.A.); (M.M.); (A.M.E.)
| | - Eman B. Azzam
- Physics Department, Medical Biophysics Division, Faculty of Science, Helwan University, Cairo 11511, Egypt;
| | - Filopateer Nasser
- Biochemistry Department, Faculty of Science, Cairo University, Giza 12511, Egypt;
| | - Kirllos Yousry
- Faculty of Medicine, Cairo University, Cairo 11511, Egypt;
| | | | - Samah M. Mahdy
- National Museum of Egyptian Civilization, Ain Elsira-Elfustat, Cairo 11511, Egypt;
| | - Abdo A. Elfiky
- Biophysics Department, Faculty of Science, Cairo University, Giza 12511, Egypt; (I.M.I.); (F.G.A.); (M.M.); (A.M.E.)
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5
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Gadanec LK, McSweeney KR, Qaradakhi T, Ali B, Zulli A, Apostolopoulos V. Can SARS-CoV-2 Virus Use Multiple Receptors to Enter Host Cells? Int J Mol Sci 2021; 22:992. [PMID: 33498183 PMCID: PMC7863934 DOI: 10.3390/ijms22030992] [Citation(s) in RCA: 95] [Impact Index Per Article: 31.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 01/18/2021] [Accepted: 01/18/2021] [Indexed: 12/12/2022] Open
Abstract
The occurrence of the novel severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), responsible for coronavirus disease 2019 (COVD-19), represents a catastrophic threat to global health. Protruding from the viral surface is a densely glycosylated spike (S) protein, which engages angiotensin-converting enzyme 2 (ACE2) to mediate host cell entry. However, studies have reported viral susceptibility in intra- and extrapulmonary immune and non-immune cells lacking ACE2, suggesting that the S protein may exploit additional receptors for infection. Studies have demonstrated interactions between S protein and innate immune system, including C-lectin type receptors (CLR), toll-like receptors (TLR) and neuropilin-1 (NRP1), and the non-immune receptor glucose regulated protein 78 (GRP78). Recognition of carbohydrate moieties clustered on the surface of the S protein may drive receptor-dependent internalization, accentuate severe immunopathological inflammation, and allow for systemic spread of infection, independent of ACE2. Furthermore, targeting TLRs, CLRs, and other receptors (Ezrin and dipeptidyl peptidase-4) that do not directly engage SARS-CoV-2 S protein, but may contribute to augmented anti-viral immunity and viral clearance, may represent therapeutic targets against COVID-19.
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6
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Liang J, Zhang JJ, Huang HI, Kanayama M, Youssef N, Jin YJ, Reyes EY, Abram CL, Yang S, Lowell CA, Wang D, Shao L, Shinohara ML, Zhang JY, Hammer GE. The Ubiquitin-Modifying Enzyme A20 Terminates C-Type Lectin Receptor Signals and Is a Suppressor of Host Defense against Systemic Fungal Infection. Infect Immun 2020; 88:e00048-20. [PMID: 32540868 PMCID: PMC7440764 DOI: 10.1128/iai.00048-20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 06/01/2020] [Indexed: 01/02/2023] Open
Abstract
C-type lectin receptors (CLRs) play key roles in antifungal defense. CLR-induced NF-κB is central to CLR functions in immunity, and thus, molecules that control the amplitude of CLR-induced NF-κB could profoundly influence host defense against fungal pathogens. However, little is known about the mechanisms that negatively regulate CLR-induced NF-κB, and molecules which act on the CLR family broadly and which directly regulate acute CLR-signaling cascades remain unidentified. Here, we identify the ubiquitin-editing enzyme A20 as a negative regulator of acute NF-κB activation downstream of multiple CLR pathways. Absence of A20 suppression results in exaggerated CLR responses in cells which are A20 deficient and also cells which are A20 haplosufficient, including multiple primary immune cells. Loss of a single allele of A20 results in enhanced defense against systemic Candida albicans infection and prolonged host survival. Thus, A20 restricts CLR-induced innate immune responses in vivo and is a suppressor of host defense against systemic fungal infection.
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Affiliation(s)
- Jie Liang
- Department of Immunology, Duke University Medical Center, Durham, North Carolina, USA
| | - Junyi J Zhang
- Department of Immunology, Duke University Medical Center, Durham, North Carolina, USA
| | - Hsin-I Huang
- Department of Immunology, Duke University Medical Center, Durham, North Carolina, USA
| | - Masashi Kanayama
- Department of Immunology, Duke University Medical Center, Durham, North Carolina, USA
| | - Nourhan Youssef
- Department of Immunology, Duke University Medical Center, Durham, North Carolina, USA
| | - Yingai J Jin
- Department of Dermatology, Duke University Medical Center, Durham, North Carolina, USA
| | - Estefany Y Reyes
- Department of Immunology, Duke University Medical Center, Durham, North Carolina, USA
| | - Clare L Abram
- Department of Laboratory Medicine and Immunology Program, University of California, San Francisco, California, USA
| | - Shigao Yang
- Department of Medicine, Duke University Medical Center, Durham, North Carolina, USA
| | - Clifford A Lowell
- Department of Laboratory Medicine and Immunology Program, University of California, San Francisco, California, USA
| | - Donghai Wang
- Department of Immunology, Duke University Medical Center, Durham, North Carolina, USA
- Department of Medicine, Duke University Medical Center, Durham, North Carolina, USA
| | - Ling Shao
- Department of Medicine, University of Southern California, Los Angeles, California, USA
| | - Mari L Shinohara
- Department of Immunology, Duke University Medical Center, Durham, North Carolina, USA
- Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, North Carolina, USA
| | - Jennifer Y Zhang
- Department of Dermatology, Duke University Medical Center, Durham, North Carolina, USA
| | - Gianna Elena Hammer
- Department of Immunology, Duke University Medical Center, Durham, North Carolina, USA
- Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, North Carolina, USA
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7
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Huang X, Liu Y, Ni T, Li L, Yan L, An M, Zhang D, Jiang Y. 11g, a Potent Antifungal Candidate, Enhances Candida albicans Immunogenicity by Unmasking β-Glucan in Fungal Cell Wall. Front Microbiol 2020; 11:1324. [PMID: 32695076 PMCID: PMC7338940 DOI: 10.3389/fmicb.2020.01324] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 05/25/2020] [Indexed: 12/14/2022] Open
Abstract
In the course of optimizing GPI biosynthesis inhibitors, we designed and synthetized a 2-aminonicotinamide derivative named 11g. After evaluating the antifungal activity of compound 11g in vitro, we investigated the influences of 11g on fungi immunogenicity. In addition, we also took advantage of murine systemic candidiasis model to investigate the protective effects of 11g in vivo. Results show that 11g exhibited potent antifungal activity both in vitro and in vivo. Further study shows that 11g caused the unmasking of fungi β-glucan layer, leading to stronger immune responses in macrophages through Dectin-1. These results suggest that 11g is a very promising antifungal candidate, which assists in eliciting stronger immune responses to help host immune system disposing pathogens. The discovery of 11g might expand the toolbox of fungal infection treatment.
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Affiliation(s)
- Xin Huang
- Department of Pharmacology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yu Liu
- School of Pharmacy, Second Military Medical University, Shanghai, China
| | - Tingjunhong Ni
- Department of Pharmacology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Liping Li
- Department of Pharmacology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Lan Yan
- School of Pharmacy, Second Military Medical University, Shanghai, China
| | - Maomao An
- Department of Pharmacology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Dazhi Zhang
- School of Pharmacy, Second Military Medical University, Shanghai, China
| | - Yuanying Jiang
- Department of Pharmacology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.,School of Pharmacy, Second Military Medical University, Shanghai, China
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8
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Guo Y, Xu Y, Xiong D, Zhou Y, Kang X, Meng C, Gu D, Jiao X, Pan Z. Molecular characterisation, expression and functional feature of TRAF6 in the King pigeon ( Columba livia). Innate Immun 2020; 26:490-504. [PMID: 32393097 PMCID: PMC7491236 DOI: 10.1177/1753425920920930] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
TNF receptor-associated factor 6 (TRAF6) is a signal transducer, which plays a pivotal role in triggering a variety of signalling cascades. Here, we cloned and identified the TRAF6 gene from the King pigeon. The open reading frame sequence of pigeon TRAF6 (piTRAF6) is 1638 bp long and encodes a 545 aa protein, including a low-complexity domain, RING finger, Zinc finger, coiled coil domain, and meprin and TRAF homology domain. The aa sequence of piTRAF6 shared a strong identity with that of other birds. PiTRAF6 transcripts were broadly expressed in all the tested tissues; piTRAF6 levels were the highest and lowest in the heart and stomach, respectively. Overexpression of piTRAF6 activated NF-κB in a dose-dependent manner and induced IFN-β expression. Upon piTRAF6 knockdown by small interfering RNAs, NF-κB activation was markedly inhibited in HEK293T cells. The expression of piTRAF6, as well as pro-inflammatory cytokines and antiviral molecules, were obviously increased after TLR ligand stimulation and Newcastle disease virus or Salmonella Pullorum inoculation. These results suggest that piTRAF6 may play a key immunoregulatory role in the innate immune response against viral and bacterial infections.
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Affiliation(s)
- Yaxin Guo
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, PR China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou University, PR China.,Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture of China, Yangzhou University, PR China.,Joint International Research Laboratory of Agriculture and Agri-product Safety of the Ministry of Education, Yangzhou University, PR China
| | - Ying Xu
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, PR China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou University, PR China.,Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture of China, Yangzhou University, PR China.,Joint International Research Laboratory of Agriculture and Agri-product Safety of the Ministry of Education, Yangzhou University, PR China
| | - Dan Xiong
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, PR China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou University, PR China.,Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture of China, Yangzhou University, PR China.,Joint International Research Laboratory of Agriculture and Agri-product Safety of the Ministry of Education, Yangzhou University, PR China
| | - Yingying Zhou
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, PR China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou University, PR China.,Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture of China, Yangzhou University, PR China.,Joint International Research Laboratory of Agriculture and Agri-product Safety of the Ministry of Education, Yangzhou University, PR China
| | - Xilong Kang
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, PR China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou University, PR China.,Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture of China, Yangzhou University, PR China.,Joint International Research Laboratory of Agriculture and Agri-product Safety of the Ministry of Education, Yangzhou University, PR China
| | - Chuang Meng
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, PR China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou University, PR China.,Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture of China, Yangzhou University, PR China.,Joint International Research Laboratory of Agriculture and Agri-product Safety of the Ministry of Education, Yangzhou University, PR China
| | - Dan Gu
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, PR China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou University, PR China.,Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture of China, Yangzhou University, PR China.,Joint International Research Laboratory of Agriculture and Agri-product Safety of the Ministry of Education, Yangzhou University, PR China
| | - Xinan Jiao
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, PR China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou University, PR China.,Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture of China, Yangzhou University, PR China.,Joint International Research Laboratory of Agriculture and Agri-product Safety of the Ministry of Education, Yangzhou University, PR China
| | - Zhiming Pan
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, PR China.,Jiangsu Key Laboratory of Zoonosis, Yangzhou University, PR China.,Key Laboratory of Prevention and Control of Biological Hazard Factors (Animal Origin) for Agrifood Safety and Quality, Ministry of Agriculture of China, Yangzhou University, PR China.,Joint International Research Laboratory of Agriculture and Agri-product Safety of the Ministry of Education, Yangzhou University, PR China
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9
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Abstract
Respiratory fungal infection is a severe clinical problem, especially in patients with compromised immune functions. Aspergillus, Cryptococcus, Pneumocystis, and endemic fungi are major pulmonary fungal pathogens that are able to result in life-threatening invasive diseases. Growing data being reported have indicated that multiple cells and molecules orchestrate the host's response to a fungal infection in the lung. Upon fungal challenge, innate myeloid cells including macrophages, dendritic cells (DC), and recruited neutrophils establish the first line of defense through the phagocytosis and secretion of cytokines. Natural killer cells control the fungal expansion in the lung via the direct and indirect killing of invading organisms. Adaptive immune cells including Th1 and Th17 cells confer anti-fungal activity by producing their signature cytokines, interferon-γ, and IL-17. In addition, lung epithelial cells (LEC) also participate in the resistance against fungal infection by internalization, inflammatory cytokine production, or antimicrobial peptide secretion. In the host cells mentioned above, various molecules with distinct functions modulate the immune defense signaling: Pattern recognition receptors (PRRs) such as dectin-1 expressed on the cell surface are involved in fungal recognition; adaptor proteins such as MyD88 and TRAF6 are required for transduction of signals to the nucleus for transcriptional regulation; inflammasomes also play crucial roles in the host's defense against a fungal infection in the lung. Furthermore, transcriptional factors modulate the transcriptions of a series of genes, especially those encoding cytokines and chemokines, which are predominant regulators in the infectious microenvironment, mediating the cellular and molecular immune responses against a fungal infection in the lung.
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Affiliation(s)
- Zhi Li
- The Joint Center for Infection and Immunity, Guangzhou Women and Children's Medical Center, Guangzhou Institute of Pediatrics, Guangzhou, China
- The Joint Center for Infection and Immunity, Institute Pasteur of Shanghai, Chinese Academy of Science, Shanghai, China
| | - Gen Lu
- The Joint Center for Infection and Immunity, Guangzhou Women and Children's Medical Center, Guangzhou Institute of Pediatrics, Guangzhou, China
| | - Guangxun Meng
- The Joint Center for Infection and Immunity, Institute Pasteur of Shanghai, Chinese Academy of Science, Shanghai, China
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10
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Kang L, Wang L, Wu C, Jiang L. Molecular characterization and expression analysis of tumor necrosis factor receptor-associated factors 3 and 6 in large yellow croaker (Larimichthys crocea). FISH & SHELLFISH IMMUNOLOGY 2018; 82:27-31. [PMID: 30075247 DOI: 10.1016/j.fsi.2018.07.051] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 07/20/2018] [Accepted: 07/27/2018] [Indexed: 06/08/2023]
Abstract
The large yellow croaker (Larimichthys crocea) has a well-developed innate immune system. To gain a better understanding of the defense mechanisms involved in this system, we studied tumor necrosis factor receptor-associated factors (TRAFs), which play important roles in the Toll-like receptor (TLR) pathway. We characterized the full-length open reading frames and protein structures of TRAF3 and TRAF6 to determine their identities, and conducted phylogenetic analysis to determine their evolutionary relationships. To assess the roles of TRAFs in innate immune responses in the large yellow croaker, we performed quantitative reverse-transcription PCR (qRT-PCR) to characterize expression profiles in a range of tissues at different stages after challenge with polyinosinic polycytidylic acid (poly I:C) and Vibrio anguillarum. Following poly I:C challenge, the expression levels of TRAF3 and TRAF6 were highest in the kidneys and lowest in the spleen, whereas after infection with V. anguillarum, TRAF6 expression was the highest in the kidneys and lowest in the liver.
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Affiliation(s)
- Lisen Kang
- National Engineering Research Center of Marine Facilities Aquaculture, College of Marine Science, Zhejiang Ocean University, No. 1 Haida South Road, Dinghai District, Zhoushan, Zhejiang Province, 316022, China
| | - Luping Wang
- National Engineering Research Center of Marine Facilities Aquaculture, College of Marine Science, Zhejiang Ocean University, No. 1 Haida South Road, Dinghai District, Zhoushan, Zhejiang Province, 316022, China
| | - Changwen Wu
- National Engineering Research Center of Marine Facilities Aquaculture, College of Marine Science, Zhejiang Ocean University, No. 1 Haida South Road, Dinghai District, Zhoushan, Zhejiang Province, 316022, China
| | - Lihua Jiang
- National Engineering Research Center of Marine Facilities Aquaculture, College of Marine Science, Zhejiang Ocean University, No. 1 Haida South Road, Dinghai District, Zhoushan, Zhejiang Province, 316022, China.
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11
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Nie L, Cai SY, Shao JZ, Chen J. Toll-Like Receptors, Associated Biological Roles, and Signaling Networks in Non-Mammals. Front Immunol 2018; 9:1523. [PMID: 30034391 PMCID: PMC6043800 DOI: 10.3389/fimmu.2018.01523] [Citation(s) in RCA: 182] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 06/19/2018] [Indexed: 01/18/2023] Open
Abstract
The innate immune system is the first line of defense against pathogens, which is initiated by the recognition of pathogen-associated molecular patterns (PAMPs) and endogenous damage-associated molecular patterns (DAMPs) by pattern recognition receptors (PRRs). Among all the PRRs identified, the toll-like receptors (TLRs) are the most ancient class, with the most extensive spectrum of pathogen recognition. Since the first discovery of Toll in Drosophila melanogaster, numerous TLRs have been identified across a wide range of invertebrate and vertebrate species. It seems that TLRs, the signaling pathways that they initiate, or related adaptor proteins are essentially conserved in a wide variety of organisms, from Porifera to mammals. Molecular structure analysis indicates that most TLR homologs share similar domain patterns and that some vital participants of TLR signaling co-evolved with TLRs themselves. However, functional specification and emergence of new signaling pathways, as well as adaptors, did occur during evolution. In addition, ambiguities and gaps in knowledge still exist regarding the TLR network, especially in lower organisms. Hence, a systematic review from the comparative angle regarding this tremendous signaling system and the scenario of evolutionary pattern across Animalia is needed. In the current review, we present overview and possible evolutionary patterns of TLRs in non-mammals, hoping that this will provide clues for further investigations in this field.
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Affiliation(s)
- Li Nie
- Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo, China
| | - Shi-Yu Cai
- Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo, China
| | - Jian-Zhong Shao
- College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Jiong Chen
- Laboratory of Biochemistry and Molecular Biology, School of Marine Sciences, Ningbo University, Ningbo, China
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12
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Liang Y, Jiao J, Liang L, Zhang J, Lu Y, Xie H, Liang Q, Wan D, Duan L, Wu Y, Zhang B. Tumor necrosis factor receptor-associated factor 6 mediated the promotion of salivary adenoid cystic carcinoma progression through Smad-p38-JNK signaling pathway induced by TGF-β. J Oral Pathol Med 2018; 47:583-589. [PMID: 29577454 DOI: 10.1111/jop.12709] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/19/2018] [Indexed: 01/16/2023]
Affiliation(s)
- Yancan Liang
- Department of Oral and Maxillofacial Surgery; Sun Yat-sen Memorial Hospital; Sun Yat-sen University; Guangzhou China
- Key Laboratory of Malignant Tumor Gene Regulation and Target Therapy of Guangzhou Higher Education Institutes; Sun Yat-sen University; Guangzhou China
| | - Jiuyang Jiao
- Department of Oral and Maxillofacial Surgery; Sun Yat-sen Memorial Hospital; Sun Yat-sen University; Guangzhou China
- Key Laboratory of Malignant Tumor Gene Regulation and Target Therapy of Guangzhou Higher Education Institutes; Sun Yat-sen University; Guangzhou China
| | - Lizhong Liang
- Department of ENT, Head and Neck, Oral and Maxillofacial Surgery; Fifth Affiliated Hospital of Sun Yat-sen University; Zhuhai China
| | - Jin Zhang
- Department of Internal Medicine; Sun Yat-sen Memorial Hospital; Sun Yat-sen University; Guangzhou China
| | - Yingjuan Lu
- Department of Oral and Maxillofacial Surgery; Sun Yat-sen Memorial Hospital; Sun Yat-sen University; Guangzhou China
- Key Laboratory of Malignant Tumor Gene Regulation and Target Therapy of Guangzhou Higher Education Institutes; Sun Yat-sen University; Guangzhou China
| | - Hongliang Xie
- Department of Stomatology; Shenzhen People's Hospital; Shenzhen China
| | - Qixiang Liang
- Department of Stomatology; the third Affiliated Hospital of Sun Yat-sen University; Guangzhou China
| | - Di Wan
- Department of Oral and Maxillofacial Surgery; Sun Yat-sen Memorial Hospital; Sun Yat-sen University; Guangzhou China
- Key Laboratory of Malignant Tumor Gene Regulation and Target Therapy of Guangzhou Higher Education Institutes; Sun Yat-sen University; Guangzhou China
| | - Liming Duan
- Department of Oral and Maxillofacial Surgery; Sun Yat-sen Memorial Hospital; Sun Yat-sen University; Guangzhou China
- Key Laboratory of Malignant Tumor Gene Regulation and Target Therapy of Guangzhou Higher Education Institutes; Sun Yat-sen University; Guangzhou China
| | - You Wu
- Department of Oral and Maxillofacial Surgery; Sun Yat-sen Memorial Hospital; Sun Yat-sen University; Guangzhou China
- Key Laboratory of Malignant Tumor Gene Regulation and Target Therapy of Guangzhou Higher Education Institutes; Sun Yat-sen University; Guangzhou China
| | - Bin Zhang
- Department of Oral and Maxillofacial Surgery; Sun Yat-sen Memorial Hospital; Sun Yat-sen University; Guangzhou China
- Key Laboratory of Malignant Tumor Gene Regulation and Target Therapy of Guangzhou Higher Education Institutes; Sun Yat-sen University; Guangzhou China
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13
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Zhu LL, Luo TM, Xu X, Guo YH, Zhao XQ, Wang TT, Tang B, Jiang YY, Xu JF, Lin X, Jia XM. E3 ubiquitin ligase Cbl-b negatively regulates C-type lectin receptor-mediated antifungal innate immunity. J Exp Med 2016; 213:1555-70. [PMID: 27432944 PMCID: PMC4986534 DOI: 10.1084/jem.20151932] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Accepted: 06/15/2016] [Indexed: 12/19/2022] Open
Abstract
Innate immune responses mediated by C-type lectin receptors Dectin-2 and Dectin-3 against fungal infections are negatively regulated by Cbl-b ubiquitination. Activation of various C-type lectin receptors (CLRs) initiates potent proinflammatory responses against various microbial infections. However, how activated CLRs are negatively regulated remains unknown. In this study, we report that activation of CLRs Dectin-2 and Dectin-3 by fungi infections triggers them for ubiquitination and degradation in a Syk-dependent manner. Furthermore, we found that E3 ubiquitin ligase Casitas B–lineage lymphoma protein b (Cbl-b) mediates the ubiquitination of these activated CLRs through associating with each other via adapter protein FcR-γ and tyrosine kinase Syk, and then the ubiquitinated CLRs are sorted into lysosomes for degradation by an endosomal sorting complex required for transport (ESCRT) system. Therefore, the deficiency of either Cbl-b or ESCRT subunits significantly decreases the degradation of activated CLRs, thereby resulting in the higher expression of proinflammatory cytokines and inflammation. Consistently, Cbl-b–deficient mice are more resistant to fungi infections compared with wild-type controls. Together, our study indicates that Cbl-b negatively regulates CLR-mediated antifungal innate immunity, which provides molecular insight for designing antifungal therapeutic agents.
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Affiliation(s)
- Le-Le Zhu
- Institute for Immunology, Department of Basic Medical Sciences, Tsinghua University School of Medicine, Beijing 100084, China Clinical Translational Research Center, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai 200433, China
| | - Tian-Ming Luo
- Institute for Immunology, Department of Basic Medical Sciences, Tsinghua University School of Medicine, Beijing 100084, China
| | - Xia Xu
- Clinical Translational Research Center, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai 200433, China
| | - Ya-Hui Guo
- Institute for Immunology, Department of Basic Medical Sciences, Tsinghua University School of Medicine, Beijing 100084, China
| | - Xue-Qiang Zhao
- Institute for Immunology, Department of Basic Medical Sciences, Tsinghua University School of Medicine, Beijing 100084, China
| | - Ting-Ting Wang
- Department of Molecular and Cellular Oncology, University of Texas MD Anderson Cancer Center, Houston, TX 77030
| | - Bing Tang
- Department of Burns, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Yuan-Ying Jiang
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China
| | - Jin-Fu Xu
- Department of Respiratory Medicine, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai 200433, China
| | - Xin Lin
- Institute for Immunology, Department of Basic Medical Sciences, Tsinghua University School of Medicine, Beijing 100084, China Department of Molecular and Cellular Oncology, University of Texas MD Anderson Cancer Center, Houston, TX 77030
| | - Xin-Ming Jia
- Clinical Translational Research Center, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai 200433, China
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14
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Keleher LL, Skyberg JA. Activation of bovine neutrophils by Brucella spp. Vet Immunol Immunopathol 2016; 177:1-6. [PMID: 27436438 DOI: 10.1016/j.vetimm.2016.05.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Revised: 05/03/2016] [Accepted: 05/10/2016] [Indexed: 01/18/2023]
Abstract
Brucellosis is a globally important zoonotic infectious disease caused by gram negative bacteria of the genus Brucella. While many species of Brucella exist, Brucella melitensis, Brucella abortus, and Brucella suis are the most common pathogens of humans and livestock. The virulence of Brucella is largely influenced by its ability to evade host factors, including phagocytic killing mechanisms, which are critical for the host response to infection. The aim of this study was to characterize the bovine neutrophil response to virulent Brucella spp. Here, we found that virulent strains of smooth B. abortus, B. melitensis, B. suis, and virulent, rough, strains of Brucella canis possess similar abilities to resist killing by resting, or IFN-γ-activated, bovine neutrophils. Bovine neutrophils responded to infection with a time-dependent oxidative burst that varied little between Brucella spp. Inhibition of TAK1, or SYK kinase blunted the oxidative burst of neutrophils in response to Brucella infection. Interestingly, Brucella spp. did not induce robust death of bovine neutrophils. These results indicate that bovine neutrophils respond similarly to virulent Brucella spp. In addition, virulent Brucella spp., including naturally rough strains of B. canis, have a conserved ability to resist killing by bovine neutrophils.
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Affiliation(s)
- Lauren L Keleher
- Department of Veterinary Pathobiology, College of Veterinary Medicine, University of Missouri, Columbia, MO, 65211, United States; Laboratory for Infectious Disease Research, University of Missouri, Columbia, MO, 65211, United States
| | - Jerod A Skyberg
- Department of Veterinary Pathobiology, College of Veterinary Medicine, University of Missouri, Columbia, MO, 65211, United States; Laboratory for Infectious Disease Research, University of Missouri, Columbia, MO, 65211, United States.
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15
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Ifrim DC, Quintin J, Courjol F, Verschueren I, van Krieken JH, Koentgen F, Fradin C, Gow NAR, Joosten LAB, van der Meer JWM, van de Veerdonk F, Netea MG. The Role of Dectin-2 for Host Defense Against Disseminated Candidiasis. J Interferon Cytokine Res 2016; 36:267-76. [PMID: 27046240 PMCID: PMC4827303 DOI: 10.1089/jir.2015.0040] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Despite the fact that Candida albicans is an important human fungal pathogen and Dectin-2 is a major pattern recognition receptor for fungi, our knowledge regarding the role of Dectin-2 for the host defense against disseminated candidiasis is limited. Dectin-2 deficient (Dectin-2−/−) mice were more susceptible to systemic candidiasis, and the susceptibility was mirrored by an elevated fungal load in the kidneys that correlated with the presence of large inflammatory foci. Phagocytosis of Candida by the macrophages lacking the Dectin-2 receptor was moderately decreased, while production of most of the macrophage-derived cytokines from Dectin-2−/− mice with systemic candidiasis was decreased. No striking differences among several Candida mutants defective in mannans could be detected between naïve wild-type and Dectin-2−/− mice, apart from the β-mannan-deficient bmt1Δ/bmt2Δ/bmt5Δ triple mutant, suggesting that β-mannan may partially mask α-mannan detection, which is the major fungal structure recognized by Dectin-2. Deciphering the mechanisms responsible for host defense against the majority of C. albicans strains represents an important step in understanding the pathophysiology of systemic candidiasis, which might lead to the development of novel immunotherapeutic strategies.
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Affiliation(s)
- Daniela C Ifrim
- 1 Department of Internal Medicine, Radboud Center for Infectious Diseases (RCI), Radboud University Nijmegen Medical Centre , Nijmegen, The Netherlands
| | - Jessica Quintin
- 1 Department of Internal Medicine, Radboud Center for Infectious Diseases (RCI), Radboud University Nijmegen Medical Centre , Nijmegen, The Netherlands
| | - Flavie Courjol
- 2 Inserm U995 , Lille, France .,3 Université de Lille , Faculté de Médecine, Lille, France
| | - Ineke Verschueren
- 1 Department of Internal Medicine, Radboud Center for Infectious Diseases (RCI), Radboud University Nijmegen Medical Centre , Nijmegen, The Netherlands
| | - J Han van Krieken
- 4 Department of Pathology, Radboud University Nijmegen Medical Centre , Nijmegen, The Netherlands
| | | | - Chantal Fradin
- 2 Inserm U995 , Lille, France .,3 Université de Lille , Faculté de Médecine, Lille, France
| | - Neil A R Gow
- 6 Aberdeen Fungal Group, School of Medical Sciences, Institute of Medical Sciences, University of Aberdeen , Aberdeen, United Kingdom
| | - Leo A B Joosten
- 1 Department of Internal Medicine, Radboud Center for Infectious Diseases (RCI), Radboud University Nijmegen Medical Centre , Nijmegen, The Netherlands
| | - Jos W M van der Meer
- 1 Department of Internal Medicine, Radboud Center for Infectious Diseases (RCI), Radboud University Nijmegen Medical Centre , Nijmegen, The Netherlands
| | - Frank van de Veerdonk
- 1 Department of Internal Medicine, Radboud Center for Infectious Diseases (RCI), Radboud University Nijmegen Medical Centre , Nijmegen, The Netherlands
| | - Mihai G Netea
- 1 Department of Internal Medicine, Radboud Center for Infectious Diseases (RCI), Radboud University Nijmegen Medical Centre , Nijmegen, The Netherlands
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16
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Thai HV, Kim E, Kim SC, Jeong D, Yang S, Baek KS, Kim Y, Ratan ZA, Yoon KD, Kim JH, Cho JY. Boerhavia diffusa L. ethanol extract suppresses inflammatory responses via inhibition of Src/Syk/TRAF6. J Funct Foods 2015. [DOI: 10.1016/j.jff.2015.06.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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17
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Deng Z, Ma S, Zhou H, Zang A, Fang Y, Li T, Shi H, Liu M, Du M, Taylor PR, Zhu HH, Chen J, Meng G, Li F, Chen C, Zhang Y, Jia XM, Lin X, Zhang X, Pearlman E, Li X, Feng GS, Xiao H. Tyrosine phosphatase SHP-2 mediates C-type lectin receptor-induced activation of the kinase Syk and anti-fungal TH17 responses. Nat Immunol 2015; 16:642-52. [PMID: 25915733 PMCID: PMC4439382 DOI: 10.1038/ni.3155] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Accepted: 03/24/2015] [Indexed: 12/15/2022]
Abstract
Fungal infection stimulates the canonical C-type lectin receptors (CLRs) signaling pathway via Syk activation. Here we show that SHP-2 plays a crucial role in mediating CLRs-induced Syk activation. Genetic ablation of Shp-2 (Ptpn11) in dendritic cells (DCs) and macrophages impaired Syk-mediated signaling and abrogated pro-inflammatory gene expression following fungal stimulation. Mechanistically, SHP-2 operates as a scaffold facilitating the recruitment of Syk to dectin-1 or FcRγ, through its N-SH2 domain and a previously unrecognized C-terminal ITAM motif. We demonstrate that DC-derived SHP-2 is crucial for the induction of IL-1β, IL-6 and IL-23, and anti-fungal TH17 cell responses to control Candida albicans infection. Together, these data reveal a mechanism by which SHP-2 mediates Syk activation in response to fungal infections
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Affiliation(s)
- Zihou Deng
- Key Laboratory of Molecular Virology and Immunology, Vaccine Center, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Shixin Ma
- Key Laboratory of Molecular Virology and Immunology, Vaccine Center, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Hao Zhou
- Department of Immunology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Aiping Zang
- Key Laboratory of Molecular Virology and Immunology, Vaccine Center, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Yiyuan Fang
- Key Laboratory of Molecular Virology and Immunology, Vaccine Center, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Tiantian Li
- Key Laboratory of Molecular Virology and Immunology, Vaccine Center, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Huanjing Shi
- Key Laboratory of Molecular Virology and Immunology, Vaccine Center, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Mei Liu
- Key Laboratory of Molecular Virology and Immunology, Vaccine Center, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Min Du
- Key Laboratory of Molecular Virology and Immunology, Vaccine Center, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Patricia R Taylor
- Department of Ophthalmology and Visual Sciences, Case Western Reserve University, Ohio, USA
| | - Helen He Zhu
- State Key Laboratory of Oncogenes and Related Genes, Renji-Med X Clinical Stem Cell Research Center, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jiangye Chen
- State Key Laboratory of Molecular Biology, Shanghai Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Guangxun Meng
- Key Laboratory of Molecular Virology and Immunology, Vaccine Center, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Fubin Li
- Shanghai Institute of Immunology and Hongqiao International Institute of Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Changbin Chen
- Key Laboratory of Molecular Virology and Immunology, Vaccine Center, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Yan Zhang
- Key Laboratory of Molecular Virology and Immunology, Vaccine Center, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Xin-Ming Jia
- Department of Immunology, Tongji University School of Medicine, Shanghai, China
| | - Xin Lin
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Xiaoming Zhang
- Key Laboratory of Molecular Virology and Immunology, Vaccine Center, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Eric Pearlman
- Department of Ophthalmology and Visual Sciences, Case Western Reserve University, Ohio, USA
| | - Xiaoxia Li
- Department of Immunology, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Gen-Sheng Feng
- Department of Pathology and Division of Biological Sciences, University of California San Diego, La Jolla, California, USA
| | - Hui Xiao
- Key Laboratory of Molecular Virology and Immunology, Vaccine Center, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
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18
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Brubaker SW, Bonham KS, Zanoni I, Kagan JC. Innate immune pattern recognition: a cell biological perspective. Annu Rev Immunol 2015; 33:257-90. [PMID: 25581309 DOI: 10.1146/annurev-immunol-032414-112240] [Citation(s) in RCA: 1002] [Impact Index Per Article: 111.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Receptors of the innate immune system detect conserved determinants of microbial and viral origin. Activation of these receptors initiates signaling events that culminate in an effective immune response. Recently, the view that innate immune signaling events rely on and operate within a complex cellular infrastructure has become an important framework for understanding the regulation of innate immunity. Compartmentalization within this infrastructure provides the cell with the ability to assign spatial information to microbial detection and regulate immune responses. Several cell biological processes play a role in the regulation of innate signaling responses; at the same time, innate signaling can engage cellular processes as a form of defense or to promote immunological memory. In this review, we highlight these aspects of cell biology in pattern-recognition receptor signaling by focusing on signals that originate from the cell surface, from endosomal compartments, and from within the cytosol.
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Affiliation(s)
- Sky W Brubaker
- Division of Gastroenterology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts 02115; , , ,
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19
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Zhao XQ, Zhu LL, Chang Q, Jiang C, You Y, Luo T, Jia XM, Lin X. C-type lectin receptor dectin-3 mediates trehalose 6,6'-dimycolate (TDM)-induced Mincle expression through CARD9/Bcl10/MALT1-dependent nuclear factor (NF)-κB activation. J Biol Chem 2014; 289:30052-62. [PMID: 25202022 DOI: 10.1074/jbc.m114.588574] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Previous studies indicate that both Dectin-3 (also called MCL or Clec4d) and Mincle (also called Clec4e), two C-type lectin receptors, can recognize trehalose 6,6'-dimycolate (TDM), a cell wall component from mycobacteria, and induce potent innate immune responses. Interestingly, stimulation of Dectin-3 by TDM can also induce Mincle expression, which may enhance the host innate immune system to sense Mycobacterium infection. However, the mechanism by which Dectin-3 induces Mincle expression is not fully defined. Here, we show that TDM-induced Mincle expression is dependent on Dectin-3-mediated NF-κB, but not nuclear factor of activated T-cells (NFAT), activation, and Dectin-3 induces NF-κB activation through the CARD9-BCL10-MALT1 complex. We found that bone marrow-derived macrophages from Dectin-3-deficient mice were severely defective in the induction of Mincle expression in response to TDM stimulation. This defect is correlated with the failure of TDM-induced NF-κB activation in Dectin-3-deficient bone marrow-derived macrophages. Consistently, inhibition of NF-κB, but not NFAT, impaired TDM-induced Mincle expression, whereas NF-κB, but not NFAT, binds to the Mincle promoter. Dectin-3-mediated NF-κB activation is dependent on the CARD9-Bcl10-MALT1 complex. Finally, mice deficient for Dectin-3 or CARD9 produced much less proinflammatory cytokines and keyhole limpet hemocyanin (KLH)-specific antibodies after immunization with an adjuvant containing TDM. Overall, this study provides the mechanism by which Dectin-3 induces Mincle expression in response to Mycobacterium infection, which will have significant impact to improve adjuvant and design vaccine for antimicrobial infection.
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Affiliation(s)
- Xue-Qiang Zhao
- From the Departments of Molecular and Cellular Oncology, and Immunology, The University of Texas, MD Anderson Cancer Center, Houston, Texas 77030
| | - Le-Le Zhu
- the Department of Immunology, School of Medicine, Tongji University, Shanghai 200092, China, and
| | - Qing Chang
- the Institute for Immunology, Tsinghua University, School of Medicine, Beijing 100084, China
| | - Changying Jiang
- From the Departments of Molecular and Cellular Oncology, and Immunology, The University of Texas, MD Anderson Cancer Center, Houston, Texas 77030
| | - Yun You
- From the Departments of Molecular and Cellular Oncology, and Immunology, The University of Texas, MD Anderson Cancer Center, Houston, Texas 77030
| | - Tianming Luo
- the Institute for Immunology, Tsinghua University, School of Medicine, Beijing 100084, China
| | - Xin-Ming Jia
- the Department of Immunology, School of Medicine, Tongji University, Shanghai 200092, China, and
| | - Xin Lin
- From the Departments of Molecular and Cellular Oncology, and Immunology, The University of Texas, MD Anderson Cancer Center, Houston, Texas 77030,
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20
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Li YW, Li X, Xiao XX, Zhao F, Luo XC, Dan XM, Li AX. Molecular characterization and functional analysis of TRAF6 in orange-spotted grouper (Epinephelus coioides). DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2014; 44:217-225. [PMID: 24378225 DOI: 10.1016/j.dci.2013.12.011] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Revised: 11/16/2013] [Accepted: 12/19/2013] [Indexed: 06/03/2023]
Abstract
Tumor necrosis factor receptor (TNFR)-associated factor 6 (TRAF6) is a crucial signal transducer in both the TNFR superfamily and Toll-like receptor/interleukin 1R family. Although significant progress has been made in clarifying the role of TRAF6 in mammals, the function of TRAF6 in fish is still poorly understood. In this study, we cloned the orange-spotted grouper (Epinephelus coioides) TRAF6 (EcTRAF6) cDNA, with an open reading frame of 1713bp encoding 570 amino acids. Sequence analysis indicated that EcTRAF6 contains the four characteristic domains conserved in the TRAF family, including an N-terminal RING finger, two zinc fingers, a coiled-coil domain, and a C-terminal MATH domain. Homology alignment and phylogenetic analysis demonstrated that EcTRAF6 shares high sequence identity with TRAF6 of other fish species. The EcTRAF6 gene contains seven exons and six introns, which is similar to the organization in ayu, but not in the common carp, human, or mouse (six exons and five introns). EcTRAF6 transcripts were broadly expressed in all tissues tested, and increased after infection with Cryptocaryon irritans. Intracellular localization showed EcTRAF6 was distributed mainly in the cytoplasm. Over-expression of wild type (WT) EcTRAF6, truncated forms of EcTRAF6, including ΔZinc finger 2 and ΔMATH, and a mutant of C78A activated NF-κB strongly in HEK293T cells; whereas truncations, including ΔRING, ΔZinc finger 1 and Δcoiled-coiled, and a mutant of K132R induced the activity of NF-κB slightly compared to WT EcTRAF6, implying the latter has a more crucial role in downstream signal transduction. Together, these results suggested EcTRAF6 functions like that of mammals to activate NF-κB, and it might have an important role in host defense against parasitic infections.
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Affiliation(s)
- Yan-Wei Li
- Key Laboratory for Aquatic Products Safety of Ministry of Education/State Key Laboratory of Biocontrol, The School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275 Guangdong Province, PR China
| | - Xia Li
- Key Laboratory for Aquatic Products Safety of Ministry of Education/State Key Laboratory of Biocontrol, The School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275 Guangdong Province, PR China
| | - Xi-Xi Xiao
- Key Laboratory for Aquatic Products Safety of Ministry of Education/State Key Laboratory of Biocontrol, The School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275 Guangdong Province, PR China
| | - Fei Zhao
- Key Laboratory of Fishery Drug Development, Ministry of Agriculture, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, 1 Xingyu Road, Liwan District, Guangzhou, 510380 Guangdong Province, PR China
| | - Xiao-Chun Luo
- School of Bioscience and Biotechnology, South China University of Technology, Guangzhou, 510006 Guangdong Province, PR China
| | - Xue-Ming Dan
- College of Animal Science, South China Agricultural University, Guangzhou, 510642 Guangdong Province, PR China
| | - An-Xing Li
- Key Laboratory for Aquatic Products Safety of Ministry of Education/State Key Laboratory of Biocontrol, The School of Life Sciences, Sun Yat-sen University, Guangzhou, 510275 Guangdong Province, PR China.
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21
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Abstract
Although Candida glabrata is an important pathogenic Candida species, relatively little is known about its innate immune recognition. Here, we explore the potential role of Dectin-2 for host defense against C. glabrata. Dectin-2-deficient (Dectin-2−/−) mice were found to be more susceptible to C. glabrata infections, showing a defective fungal clearance in kidneys but not in the liver. The increased susceptibility to infection was accompanied by lower production of T helper 1 (Th1) and Th17-derived cytokines by splenocytes of Dectin-2−/− mice, while macrophage-derived cytokines were less affected. These defects were associated with a moderate yet significant decrease in phagocytosis of the fungus by the Dectin-2−/− macrophages and neutrophils. Neutrophils of Dectin-2−/− mice also displayed lower production of reactive oxygen species (ROS) upon challenge with opsonized C. glabrata or C. albicans. This study suggests that Dectin-2 is important in host defense against C. glabrata and provides new insights into the host defense mechanisms against this important fungal pathogen.
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22
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Wevers BA, Geijtenbeek TBH, Gringhuis SI. C-type lectin receptors orchestrate antifungal immunity. Future Microbiol 2013; 8:839-54. [DOI: 10.2217/fmb.13.56] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Fungal infections are an emerging threat for human health. A coordinated host immune response is fundamental for successful elimination of an invading fungal microbe. A panel of C-type lectin receptors expressed on antigen-presenting dendritic cells enable innate recognition of fungal cell wall carbohydrates and tailors adaptive responses via the instruction of CD4+ T helper cell fates. Well-balanced T helper cell type 1 and IL-17-producing T helper cell responses are crucial in antifungal immunity and facilitate phagocytic clearance of fungal encounters. Strikingly, different classes of fungi trigger distinct sets of C-type lectin receptors to evoke a pathogen-specific T helper response. In this review, we outline the key roles of several C-type lectin receptors during the generation of protective antifungal immunity, with particular emphasis on the distinct signaling pathways and transcriptional programs triggered by these receptors, which collaborate to orchestrate polarization of the T helper response.
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Affiliation(s)
- Brigitte A Wevers
- Department of Experimental Immunology, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
| | - Teunis BH Geijtenbeek
- Department of Experimental Immunology, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
| | - Sonja I Gringhuis
- Department of Experimental Immunology, Academic Medical Center, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands.
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23
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Abstract
The tumor necrosis factor receptor (TNF-R)-associated factor (TRAF) family of intracellular proteins were originally identified as signaling adaptors that bind directly to the cytoplasmic regions of receptors of the TNF-R superfamily. The past decade has witnessed rapid expansion of receptor families identified to employ TRAFs for signaling. These include Toll-like receptors (TLRs), NOD-like receptors (NLRs), RIG-I-like receptors (RLRs), T cell receptor, IL-1 receptor family, IL-17 receptors, IFN receptors and TGFβ receptors. In addition to their role as adaptor proteins, most TRAFs also act as E3 ubiquitin ligases to activate downstream signaling events. TRAF-dependent signaling pathways typically lead to the activation of nuclear factor-κBs (NF-κBs), mitogen-activated protein kinases (MAPKs), or interferon-regulatory factors (IRFs). Compelling evidence obtained from germ-line and cell-specific TRAF-deficient mice demonstrates that each TRAF plays indispensable and non-redundant physiological roles, regulating innate and adaptive immunity, embryonic development, tissue homeostasis, stress response, and bone metabolism. Notably, mounting evidence implicates TRAFs in the pathogenesis of human diseases such as cancers and autoimmune diseases, which has sparked new appreciation and interest in TRAF research. This review presents an overview of the current knowledge of TRAFs, with an emphasis on recent findings concerning TRAF molecules in signaling and in human diseases.
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Affiliation(s)
- Ping Xie
- Department of Cell Biology and Neuroscience, Rutgers University, 604 Allison Road, Nelson Labs Room B336, Piscataway, New Jersey 08854.
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