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Mani S, Aiyegoro OA, Adeleke MA. Association between host genetics of sheep and the rumen microbial composition. Trop Anim Health Prod 2022; 54:109. [PMID: 35192073 DOI: 10.1007/s11250-022-03057-2] [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: 01/30/2021] [Accepted: 01/04/2022] [Indexed: 10/19/2022]
Abstract
A synergy between the rumen microbiota and the host genetics has created a symbiotic relationship, beneficial to the host's health. In this study, the association between the host genetics and rumen microbiome of Damara and Meatmaster sheep was investigated. The composition of rumen microbiota was estimated through the analysis of the V3-V4 region of the 16S rRNA gene, while the sheep blood DNA was genotyped with Illumina OvineSNP50 BeadChip and the genome-wide association (GWA) was analyzed. Sixty significant SNPs dispersed in 21 regions across the Ovis aries genome were found to be associated with the relative abundance of seven genera: Acinetobacter, Bacillus, Clostridium, Flavobacterium, Prevotella, Pseudomonas, and Streptobacillus. A total of eighty-four candidate genes were identified, and their functional annotations were mainly associated with immunity responses and function, metabolism, and signal transduction. Our results propose that those candidate genes identified in the study may be modulating the composition of rumen microbiota and further indicating the significance of comprehending the interactions between the host and rumen microbiota to gain better insight into the health of sheep.
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Affiliation(s)
- Sinalo Mani
- GI Microbiology and Biotechnology Unit, Agricultural Research Council- Animal Production, Private Bag X02, Irene, 0062, South Africa.,Discipline of Genetics, School of Life Sciences, College of Agriculture, Engineering and Science, University of KwaZulu-Natal, Westville, P/Bag X54001, Durban, 4000, South Africa
| | - Olayinka Ayobami Aiyegoro
- GI Microbiology and Biotechnology Unit, Agricultural Research Council- Animal Production, Private Bag X02, Irene, 0062, South Africa. .,Research Unit for Environmental Sciences and Management, North West University, Potchefstroom, 2520, South Africa.
| | - Matthew Adekunle Adeleke
- Discipline of Genetics, School of Life Sciences, College of Agriculture, Engineering and Science, University of KwaZulu-Natal, Westville, P/Bag X54001, Durban, 4000, South Africa
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2
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Sakai H, Tanaka Y, Tanaka A, Ohdan H. TLR-MyD88 signaling blockades inhibit refractory B-1b cell immune responses to transplant-related glycan antigens. Am J Transplant 2021; 21:1427-1439. [PMID: 32865877 DOI: 10.1111/ajt.16288] [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: 03/26/2020] [Revised: 07/26/2020] [Accepted: 08/17/2020] [Indexed: 01/25/2023]
Abstract
Refractory B cell responses to T cell-independent (TI) carbohydrate antigens (Ags) are critical drivers of rejection reactions to ABO-incompatible allogeneic grafts and xenogeneic grafts from other species. To explore the biological significance of crosstalk between Toll-like receptors (TLRs) and B cell receptors (BCRs) in the TI B cell immunity, we here used MyD88-, TRIF-, and α-galactosyltransferase-deficient mice to study B cell phenotypes and functional properties during TI transplant-related glycan Ag exposure. BCR stimulation alone induced differentiation into CD5high (B-1a) cells, which were highly sensitive to a calcineurin inhibitor (CNI), while co-stimulation of TLRs and BCRs induced differentiation into CD5dim (B-1b) cells in MyD88-dependent and CNI-resistant manner. MyD88-dependent TLR stimulation in B-1b cells enhanced downstream factors in the BCR-calcineurin pathway, including a nuclear factor of activated T cells, cytoplasmic 1 (NFATc1). TLR inhibitor together with CNI abrogated refractory B-1b cell immune responses against the ABO-blood group Ags, while blocking both BCRs and TLR-MyD88 by using Bruton's tyrosine kinase inhibitor and histone deacetylase inhibitor abrogated refractory B-1b cell immune responses against Gal-glycan Ags. Thus, this study provides a rationale for a novel therapeutic approach to overcome refractory transplant-related anti-glycan Ab production by blocking both BCR and TLR-MyD88 signals.
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Affiliation(s)
- Hiroshi Sakai
- Department of Gastroenterological and Transplant Surgery, Applied Life Sciences, Institute of Biochemical and Health Sciences, Hiroshima University, Hiroshima, Japan.,Department of Medicine, Columbia Center for Translational Immunology, Columbia University Medical Center, New York, NY, USA
| | - Yuka Tanaka
- Department of Gastroenterological and Transplant Surgery, Applied Life Sciences, Institute of Biochemical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Asuka Tanaka
- Department of Gastroenterological and Transplant Surgery, Applied Life Sciences, Institute of Biochemical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Hideki Ohdan
- Department of Gastroenterological and Transplant Surgery, Applied Life Sciences, Institute of Biochemical and Health Sciences, Hiroshima University, Hiroshima, Japan
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Engelmann C, Riemann M, Carlstedt S, Grimlowski R, Andreas N, Koliesnik I, Meier E, Austerfield P, Haenold R. Identification of undescribed Relb expression domains in the murine brain by new Relb:cre-katushka reporter mice. Dev Dyn 2020; 249:983-997. [PMID: 32145043 DOI: 10.1002/dvdy.170] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 02/07/2020] [Accepted: 02/27/2020] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Noncanonical NF-κB signaling through activation of the transcription factor RelB acts as key regulator of cell lineage determination and differentiation in various tissues including the immune system. To elucidate temporospatial aspects of Relb expression, we generated a BAC transgenic knock-in mouse expressing the fluorescent protein Katushka and the enzyme Cre recombinase under control of the murine Relb promoter (RelbCre-Kat mice). RESULTS Co-expression of Katushka and Relb in fibroblast cultures and tissues of transgenic mice revealed highly specific reporter functions of the transgene. Crossing RelbCre-Kat mice with ROSA26R reporter mice that allow for Cre-mediated consecutive β-galactosidase or YFP synthesis identified various Relb expression domains in perinatal and mature mice. Besides thymus and spleen, highly specific expression patterns were found in different neuronal domains, as well as in other nonimmune organs including skin, skeletal structures and kidney. De novo Relb expression in the mature brain was confirmed in conditional knockout mice with neuro-ectodermal Relb deletion. CONCLUSION Our results demonstrate the usability of RelbCre-Kat reporter mice for the detection of de novo and temporarily restricted Relb expression including cell and lineage tracing of Relb expressing cells. Relb expression during mouse embryogenesis and at adulthood suggests, beyond immunity, important functions of this transcription factor in neurodevelopment and CNS function.
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Affiliation(s)
| | - Marc Riemann
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Jena, Germany
| | - Swen Carlstedt
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Jena, Germany.,Jena University Hospital, Institute of Biochemistry II, Center for Sepsis Control and Care, Jena, Germany
| | - Randy Grimlowski
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Jena, Germany.,Department of Vascular Cell Biology, Max Planck Institute for Molecular Biomedicine, Münster, Germany
| | - Nico Andreas
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Jena, Germany.,Jena University Hospital, Institute of Immunology, Jena, Germany
| | - Ievgen Koliesnik
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Jena, Germany.,School of Medicine, Division of Infectious Diseases and Geographic Medicine, Stanford University, Stanford, CA, USA
| | - Elke Meier
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Jena, Germany
| | | | - Ronny Haenold
- Leibniz Institute on Aging - Fritz Lipmann Institute (FLI), Jena, Germany
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Alternative NF-κB signaling controls peripheral homeostasis and function of regulatory T cells. Immunobiology 2019; 224:687-696. [DOI: 10.1016/j.imbio.2019.06.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Revised: 05/28/2019] [Accepted: 06/03/2019] [Indexed: 11/23/2022]
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5
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Yang X, Sun R, Ci L, Wang N, Yang S, Shi J, Yang H, Zhang M, Fei J. Tracing the dynamic expression of the Nfκb2 gene during inflammatory processes by in vivo bioluminescence imaging in transgenic mice. Biochem Biophys Res Commun 2018; 501:41-47. [PMID: 29680659 DOI: 10.1016/j.bbrc.2018.04.126] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 04/16/2018] [Indexed: 02/08/2023]
Abstract
Nfκb2(p52/p100) plays essential roles in many chronic inflammatory diseases. Tracing the dynamic expression of Nfκb2 during different biological processes in vivo can provide valuable clues to understand the biological functions of this gene and develop anti-inflammatory drugs. In this study, B6-Tg(Nfκb2-luc)Mlit transgenic mouse line, a mouse model in which the expression of firefly luciferase gene is under the control of a 14.6-kb mouse Nfκb2 promoter, was generated to monitor the expression of p52/p100 in vivo. Bioluminescence imaging was used for tracking the luciferase signal in living mice in a variety of inflammatory processes, including LPS-induced sepsis and inflammatory bowel disease (IBD). The data of in vivo bioluminescence imaging in this mouse model showed that luciferase activity coincided with the endogenous p52/p100 expression. Moreover, dexamethasone or aspirin, two routine anti-inflammatory drugs, could decrease the high-level expression of luciferase induced by LPS. Overall, our results suggest that the B6-Tg(Nfκb2-luc)Mlit mice represent a valuable reporter mouse model not only to monitor the expression of p52/p100 in physiological or pathological processes but also to evaluate the effects of various anti-inflammatory drug treatments in vivo.
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Affiliation(s)
- Xingyu Yang
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200030, China; Institute of Embryo-Fetal Original Adult Disease Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ruilin Sun
- Shanghai Engineering Research Center for Model Organisms, SRCMO/SMOC, Shanghai, 201203, China
| | - Lei Ci
- Shanghai Engineering Research Center for Model Organisms, SRCMO/SMOC, Shanghai, 201203, China
| | - Ning Wang
- School of Life Science & Technology, Tongji University, Shanghai, 200092, China
| | - Sai Yang
- School of Life Science & Technology, Tongji University, Shanghai, 200092, China
| | - Jiahao Shi
- School of Life Science & Technology, Tongji University, Shanghai, 200092, China
| | - Hua Yang
- School of Life Science & Technology, Tongji University, Shanghai, 200092, China
| | - Mengjie Zhang
- School of Life Science & Technology, Tongji University, Shanghai, 200092, China.
| | - Jian Fei
- School of Life Science & Technology, Tongji University, Shanghai, 200092, China; Shanghai Engineering Research Center for Model Organisms, SRCMO/SMOC, Shanghai, 201203, China.
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RelB regulates Th17 differentiation in a cell-intrinsic manner. Immunobiology 2018; 223:191-199. [DOI: 10.1016/j.imbio.2017.10.026] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 10/11/2017] [Accepted: 10/11/2017] [Indexed: 01/01/2023]
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Gao S, Ren Y, Zhang H, Pan B, Gao H. Identification and expression analysis of IκB and NF-κB genes from Cyclina sinensis. FISH & SHELLFISH IMMUNOLOGY 2016; 56:427-435. [PMID: 27492119 DOI: 10.1016/j.fsi.2016.07.035] [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: 04/13/2016] [Revised: 07/29/2016] [Accepted: 07/31/2016] [Indexed: 06/06/2023]
Abstract
With the increasing economic importance of Cyclina sinensis aquaculture, interest in its defense mechanisms against pathogenic infection has grown in recent years. Inhibitor of nuclear factor-kappaB (IκB) and nuclear factor-kappaB (NF-κB) are proteins with central roles in many important physiological and pathological processes, such as innate immune responses. In this study, we identified CsIκB and CsNF-κB genes from a C. sinensis transcriptome library. In healthy adult clams, CsIκB and CsNF-κB genes were widely expressed in various tissues and highly expressed in hemocytes. Further, the expression levels of these genes were significantly increased in hemocytes challenged by Vibrio anguillarum, Micrococcus luteus and poly I:C. Inhibition of CsMyD88 expression by RNAi technology significantly altered the mRNA expression patterns of CsIκB and CsNF-κB as measured using quantitative real-time PCR. These results collectively indicated that the NF-κB signaling pathway, including CsIκB and CsNF-κB genes, might be involved in early innate immune responses and may be regulated by a MyD88-dependent signaling pathway in C. sinensis.
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Affiliation(s)
- Shan Gao
- Tianjin Key Laboratory of Animal and Plant Resistance, School of Life Sciences, Tianjin Normal University, Tianjin, 300387, PR China
| | - Yipeng Ren
- Tianjin Key Laboratory of Animal and Plant Resistance, School of Life Sciences, Tianjin Normal University, Tianjin, 300387, PR China; Institute of Entomology, College of Life Sciences, Nankai University, Tianjin, 300071, PR China
| | - Haijing Zhang
- Tianjin Key Laboratory of Animal and Plant Resistance, School of Life Sciences, Tianjin Normal University, Tianjin, 300387, PR China
| | - Baoping Pan
- Tianjin Key Laboratory of Animal and Plant Resistance, School of Life Sciences, Tianjin Normal University, Tianjin, 300387, PR China.
| | - Hong Gao
- Tianjin Key Laboratory of Animal and Plant Resistance, School of Life Sciences, Tianjin Normal University, Tianjin, 300387, PR China
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Hata K, Yanase N, Sudo K, Kiyonari H, Mukumoto Y, Mizuguchi J, Yokosuka T. Differential regulation of T-cell dependent and T-cell independent antibody responses through arginine methyltransferase PRMT1 in vivo. FEBS Lett 2016; 590:1200-10. [DOI: 10.1002/1873-3468.12161] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Revised: 03/21/2016] [Accepted: 03/22/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Kikumi Hata
- Department of Immunology; Tokyo Medical University; Japan
| | - Noriko Yanase
- Department of Immunology; Tokyo Medical University; Japan
| | - Katsuko Sudo
- Animal Research Center; Tokyo Medical University; Japan
| | - Hiroshi Kiyonari
- Animal Resource Development Unit; RIKEN Center for Life Science Technologies; Kobe Japan
- Genetic Engineering Team; RIKEN Center for Life Science Technologies; Kobe Japan
| | - Yoshiko Mukumoto
- Genetic Engineering Team; RIKEN Center for Life Science Technologies; Kobe Japan
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Hahn M, Macht A, Waisman A, Hövelmeyer N. NF-κB-inducing kinase is essential for B-cell maintenance in mice. Eur J Immunol 2016; 46:732-41. [PMID: 26593098 DOI: 10.1002/eji.201546081] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2015] [Revised: 10/27/2015] [Accepted: 11/16/2015] [Indexed: 12/22/2022]
Abstract
NF-κB-inducing kinase (NIK) is a key mediator of the noncanonical NF-κB signaling pathway, which is critical for normal B-cell development and function. It is well established that the complete deletion of NIK in mice results in defective B cells and impaired secondary lymphoid organogenesis. To address the role of NIK deficiency specifically in B cells, we generated a new mouse strain for the conditional deletion of this kinase. Deletion of NIK during B-cell development results in a drastic reduction of mature B cells from the transitional 2 stage on, while B-1 B cells are less affected. Moreover, deletion of NIK in the germinal centers decreases the numbers of germinal center B cells and impairs the ability of NIK-deficient B cells to develop into class-switched cells in vivo. This new mouse strain will be helpful for studying the role of NIK in different cell types of the body.
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Affiliation(s)
- Matthias Hahn
- Institute for Molecular Medicine, University Medical Center of the Johannes Gutenberg University of Mainz, Mainz, Germany
| | - Anna Macht
- Institute for Molecular Medicine, University Medical Center of the Johannes Gutenberg University of Mainz, Mainz, Germany
| | - Ari Waisman
- Institute for Molecular Medicine, University Medical Center of the Johannes Gutenberg University of Mainz, Mainz, Germany
| | - Nadine Hövelmeyer
- Institute for Molecular Medicine, University Medical Center of the Johannes Gutenberg University of Mainz, Mainz, Germany
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Li R, Zhang R, Zhang L, Zou J, Xing Q, Dou H, Hu X, Zhang L, Wang R, Bao Z. Characterizations and expression analyses of NF-κB and Rel genes in the Yesso scallop (Patinopecten yessoensis) suggest specific response patterns against Gram-negative infection in bivalves. FISH & SHELLFISH IMMUNOLOGY 2015; 44:611-621. [PMID: 25842178 DOI: 10.1016/j.fsi.2015.03.036] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Revised: 03/20/2015] [Accepted: 03/25/2015] [Indexed: 06/04/2023]
Abstract
Rel/NF-κB (nuclear factor kappa-light-chain-enhancer of activated B cells) genes are evolutionarily conserved and play a pivotal role in several physiological events. They have been extensively studied from various species, including both vertebrates and invertebrates. However, the Rel/NF-κB genes have not been systematically characterized in bivalves. In this study, we identified and characterized PyNF-κB and PyRel in the Yesso scallop (Patinopecten yessoensis). Phylogenetic and protein structural analyses were conducted to determine the identities and evolutionary relationships of Rel/NF-κB genes in Yesso scallop. Compared with the Rel/NF-κB genes from vertebrate species, the PyNF-κB and PyRel are relatively conserved in their structural features, but there were no paralogs found in P. yessoensis or other invertebrates. To gain insights into the roles of Rel/NF-κB genes during the innate immune response in scallop, quantitative real-time PCR was used to investigate the expression profiles of these genes at different developmental stages, in healthy adult tissues and in the hemolymph after bacterial infection with Micrococcus luteus and Vibrio anguillarum. The real-time PCR results indicated the abundance of PyNF-κB in the first four embryonic stages, including oocytes, fertilized eggs, morulae and blastulae. By contrast, PyRel was abundantly expressed in blastulae, trochophores and D-shaped larvae. In adult scallops, PyNF-κB and PyRel were ubiquitously expressed in most healthy tissues and highly expressed in most of the immune related tissues. Both genes were significantly up-regulated during the acute phase (3 h) after infection with Gram-positive (M. luteus) and negative (V. anguillarum) bacteria, while the much higher expression level of PyNF-κB suggested the involvement of the extra immune deficiency (IMD)-like pathway against the Gram-negative bacterial infection. The complex pattern of Rel/NF-κB induced expression suggested that PyNF-κB and PyRel both have specific and cooperative roles in the acute immune responses to bacterial infection.
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Affiliation(s)
- Ruojiao Li
- Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
| | - Ru Zhang
- Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
| | - Lu Zhang
- Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
| | - Jiajun Zou
- Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
| | - Qiang Xing
- Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
| | - Huaiqian Dou
- Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
| | - Xiaoli Hu
- Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
| | - Lingling Zhang
- Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, China.
| | - Ruijia Wang
- Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, China.
| | - Zhenmin Bao
- Key Laboratory of Marine Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
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Falk Herbert Weih (1959-2014). Eur J Immunol 2015; 45:650-1. [DOI: 10.1002/eji.201570035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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