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Xu J, Ye Y, Ji J, Sun J, Wang JS, Sun X. Untargeted Metabolomic Profiling Reveals Changes in Gut Microbiota and Mechanisms of Its Regulation of Allergy in OVA-Sensitive BALB/c Mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:3344-3356. [PMID: 35232013 DOI: 10.1021/acs.jafc.1c07482] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Gut microbiota plays an important role in the regulation of food allergy. However, the interactions between the gut flora and immune system are not well studied. Here, we obtained ovalbumin (OVA)-sensitive BALB/c mice, combined with serum untargeted metabolomics to investigate the mechanisms of the interactions. The serum metabolomics results showed that 17 serum metabolites were downregulated, enriched in the aminoacyl-tRNA biosynthesis pathway, whereas indole-3-propionic acid (IPA) was increased. Six operational taxonomic units (OTUs) at the family level were altered and correlated with immune endpoints. Combined metabolomic and microbiomic analyses revealed that IPA levels were correlated with differential bacterial OTUs and a positive correlation with Treg in splenic lymphocytes. These results suggest that the regulatory effects of intestinal flora on allergic responses may be achieved by metabolizing tryptophan to produce indole derivatives and the aminoacyl-tRNA biosynthesis pathway. The formation of OVA tolerance in mice may be related to the enrichment of Peptostreptococcaceae, Ruminococcaceae, and Lactobacillaceae.
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Affiliation(s)
- Jiayuan Xu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Foods, School of Food Science Synergetic Innovation Center of Food Safety and Nutrition, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Yongli Ye
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Foods, School of Food Science Synergetic Innovation Center of Food Safety and Nutrition, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Jian Ji
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Foods, School of Food Science Synergetic Innovation Center of Food Safety and Nutrition, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Jiadi Sun
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Foods, School of Food Science Synergetic Innovation Center of Food Safety and Nutrition, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Jia-Sheng Wang
- Department of Environmental Health Science, College of Public Health, University of Georgia, Athens, Georgia 30602, United States
| | - Xiulan Sun
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Foods, School of Food Science Synergetic Innovation Center of Food Safety and Nutrition, Jiangnan University, Wuxi, Jiangsu 214122, China
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2
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Fagbemi A, Newman WG, Tangye SG, Hughes SM, Cheesman E, Arkwright PD. Refractory very early-onset inflammatory bowel disease associated with cytosolic isoleucyl-tRNA synthetase deficiency: A case report. World J Gastroenterol 2020; 26:1841-1846. [PMID: 32351297 PMCID: PMC7183863 DOI: 10.3748/wjg.v26.i15.1841] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 03/26/2020] [Accepted: 03/31/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Aminoacyl tRNA synthetases/ligases (ARSs) are highly conserved enzymes involved in attaching amino acids to tRNA promoting protein synthesis. Although deficiencies of ARSs localized to the mitochondria classically present with neuropathology, the clinical features of cytosolic ARS deficiencies are more variable. They have previously been associated with neonatal hepatitis, but never with early-onset inflammatory bowel disease.
CASE SUMMARY A nine-year-old Bangladeshi boy presented with neonatal liver failure and deranged clotting, transaminitis and cholestasis. His parents were first cousins. Two older brothers and a sister were well. The patient suffered from loose stools from early infancy which became more troublesome and persistent from five years old with ten bloody motions a day. Repeated endoscopies showed persistent pancolitis, which was refractory to mesalazine, corticosteroids, azathioprine, sirolimus and anti-TNF (adalimumab) therapy, but has improved recently with subcutaneous methotrexate.Whole Genome Sequencing revealed a novel pathogenic missense variant (c.290A > G) in the cytosolic isoleucyl-tRNA synthetase gene, leading to an amino acid substitution (p.Asp97Gly). Pathogenic variants in other genes associated with inflammatory bowel disease (IBD) (ADAM17, EGFR, FOXP3, IL10RA, IL10RB, IL21R, NCF4, STAT3) were excluded. Cytokine assays demonstrated markedly elevated IL-2, IL-5, IL-13, IL-9 and IL-10 by the patient’s CD4+ T-cells, while IL-17A, IL-17F, IFNβ were lower, and TNFα not significantly different when compared to healthy controls.
CONCLUSION This case report provides evidence that recessive mutations in cytosolic isoleucyl-tRNA synthetase are a novel monogenic cause of IBD, which should be considered, particularly in infants and children with a history of neonatal hepatitis and very early-onset IBD poorly responsive to treatment.
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Affiliation(s)
- Andrew Fagbemi
- Department of Paediatric Gastroenterology, Royal Manchester Children’s Hospital, Manchester M199WL, United Kingdom
| | - William G Newman
- Department of Medical Genetics, Manchester University NHS Foundation Trust, Manchester M139WL, United Kingdom
- Evolution and Genomic Sciences, University of Manchester, Manchester M139WL, United Kingdom
| | - Stuart G Tangye
- Garvan Institute of Medical Research, Darlinghurst, NSW 2010, Australia
- St Vincent’s Clinical School, Faculty of Medicine, UNSW Australia, Sydney, NSW 2010, Australia
| | - Stephen M Hughes
- Department of Paediatric Allergy and Immunology, Royal Manchester Children’s Hospital, Manchester M139WL, United Kingdom
| | - Edmund Cheesman
- Department of Paediatric Histopathology, St Mary’s Hospital, Manchester M139WL, United Kingdom
| | - Peter D Arkwright
- Department of Paediatric Allergy and Immunology, Royal Manchester Children’s Hospital, Manchester M139WL, United Kingdom
- Lydia Becker Institute of Immunology and Inflammation, University of Manchester, Manchester M139WL, United Kingdom
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3
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Halpert MM, Konduri V, Liang D, Vazquez-Perez J, Hofferek CJ, Weldon SA, Baig Y, Vedula I, Levitt JM, Decker WK. MHC class I and II peptide homology regulates the cellular immune response. FASEB J 2020; 34:8082-8101. [PMID: 32298026 DOI: 10.1096/fj.201903002r] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 03/18/2020] [Accepted: 03/31/2020] [Indexed: 12/24/2022]
Abstract
Mammalian immune responses are initiated by "danger" signals--immutable molecular structures known as PAMPs. When detected by fixed, germline encoded receptors, pathogen-associated molecular pattern (PAMPs) subsequently inform the polarization of downstream adaptive responses depending upon identity and localization of the PAMP. Here, we report the existence of a completely novel "PAMP" that is not a molecular structure but an antigenic pattern. This pattern--the incidence of peptide epitopes with stretches of 100% sequence identity bound to both dendritic cell (DC) major histocompatibility (MHC) class I and MHC class II--strongly induces TH 1 immune polarization and activation of the cellular immune response. Inherent in the existence of this PAMP is the concomitant existence of a molecular sensor complex with the ability to scan and compare amino acid sequence identities of bound class I and II peptides. We provide substantial evidence implicating the multienzyme aminoacyl-tRNA synthetase (mARS) complex and its AIMp1 structural component as the key constituents of this complex. The results demonstrate a wholly novel mechanism by which T-helper (TH ) polarization is governed and provide critical information for the design of vaccination strategies intended to provoke cell-mediated immunity.
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Affiliation(s)
- Matthew M Halpert
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX, USA
| | - Vanaja Konduri
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX, USA
| | - Dan Liang
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX, USA
| | | | - Colby J Hofferek
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX, USA
| | - Scott A Weldon
- Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX, USA
| | - Yunyu Baig
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX, USA
| | - Indira Vedula
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX, USA
| | - Jonathan M Levitt
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX, USA.,Scott Department of Urology, Baylor College of Medicine, Houston, TX, USA.,Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX, USA
| | - William K Decker
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX, USA.,Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX, USA.,Center for Cell and Gene Therapy, Baylor College of Medicine, Houston, TX, USA
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4
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Liang D, Tian L, You R, Halpert MM, Konduri V, Baig YC, Paust S, Kim D, Kim S, Jia F, Huang S, Zhang X, Kheradmand F, Corry DB, Gilbert BE, Levitt JM, Decker WK. AIMp1 Potentiates T H1 Polarization and Is Critical for Effective Antitumor and Antiviral Immunity. Front Immunol 2018; 8:1801. [PMID: 29379495 PMCID: PMC5775236 DOI: 10.3389/fimmu.2017.01801] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Accepted: 11/30/2017] [Indexed: 12/30/2022] Open
Abstract
Dendritic cells (DCs) must integrate a broad array of environmental cues to exact control over downstream immune responses including TH polarization. The multienzyme aminoacyl-tRNA synthetase complex component AIMp1/p43 responds to cellular stress and exerts pro-inflammatory functions; however, a role for DC-expressed AIMp1 in TH polarization has not previously been shown. Here, we demonstrate that the absence of AIMp1 in bone marrow-derived DC (BMDC) significantly impairs cytokine and costimulatory molecule expression, p38 MAPK signaling, and TH1 polarization of cocultured T-cells while significantly dysregulating immune-related gene expression. These deficits resulted in significantly compromised BMDC vaccine-mediated protection against melanoma. AIMp1 within the host was also critical for innate and adaptive antiviral immunity against influenza virus infection in vivo. Cancer patients with AIMp1 expression levels in the highest tertiles exhibited a 70% survival advantage at 15-year postdiagnosis as determined by bioinformatics analysis of nearly 9,000 primary human tumor samples in The Cancer Genome Atlas database. These data establish the importance of AIMp1 for the effective governance of antitumor and antiviral immune responses.
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Affiliation(s)
- Dan Liang
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX, United States
| | - Lin Tian
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, United States
| | - Ran You
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX, United States
| | - Matthew M Halpert
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX, United States
| | - Vanaja Konduri
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX, United States
| | - Yunyu C Baig
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX, United States
| | - Silke Paust
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX, United States.,Department of Pediatrics, Texas Children's Hospital, Houston, TX, United States.,Center for Human Immunobiology, Texas Children's Hospital, Houston, TX, United States.,Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX, United States.,Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX, United States
| | - Doyeun Kim
- Medicinal Bioconvergence Research Center, Department of Molecular Medicine and Biopharmaceutical Sciences, Seoul National University, Seoul, South Korea
| | - Sunghoon Kim
- Medicinal Bioconvergence Research Center, Department of Molecular Medicine and Biopharmaceutical Sciences, Seoul National University, Seoul, South Korea
| | - Fuli Jia
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, United States.,Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX, United States.,Antibody-based Proteomics Core, Baylor College of Medicine, Houston, TX, United States
| | - Shixia Huang
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, United States.,Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX, United States.,Antibody-based Proteomics Core, Baylor College of Medicine, Houston, TX, United States
| | - Xiang Zhang
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, United States.,Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX, United States.,Lester and Sue Smith Breast Center, Baylor College of Medicine, Houston, TX, United States
| | - Farrah Kheradmand
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX, United States.,Division of Pulmonary, Critical Care, and Sleep Medicine, Baylor College of Medicine, Houston, TX, United States
| | - David B Corry
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX, United States.,Division of Immunology, Allergy, and Rheumatology, Baylor College of Medicine, Houston, TX, United States
| | - Brian E Gilbert
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX, United States
| | - Jonathan M Levitt
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX, United States.,Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX, United States.,Scott Department of Urology, Baylor College of Medicine, Houston, TX, United States
| | - William K Decker
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, TX, United States.,Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX, United States.,Center for Cell and Gene Therapy, Baylor College of Medicine, Houston, TX, United States
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Fitzpatrick AM, Stephenson ST, Brown MR, Nguyen K, Douglas S, Brown LAS. Systemic Corticosteroid Responses in Children with Severe Asthma: Phenotypic and Endotypic Features. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2016; 5:410-419.e4. [PMID: 27665382 DOI: 10.1016/j.jaip.2016.08.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Revised: 08/11/2016] [Accepted: 08/23/2016] [Indexed: 11/18/2022]
Abstract
BACKGROUND Severe asthma in children is a heterogeneous disorder associated with variable responses to corticosteroid treatment. Criterion standards for corticosteroid responsiveness assessment in children are lacking. OBJECTIVE This study sought to characterize systemic corticosteroid responses in children with severe asthma after treatment with intramuscular triamcinolone and to identify phenotypic and molecular predictors of an intramuscular triamcinolone response. METHODS Asthma-related quality of life, exhaled nitric oxide, blood eosinophils, lung function, and inflammatory cytokine and chemokine mRNA gene expression in peripheral blood mononuclear cells were assessed in 56 children with severe asthma at baseline and 14 days after intramuscular triamcinolone injection. The Asthma Control Questionnaire was used to classify children with severe asthma into corticosteroid response groups. RESULTS Three groups of children with severe asthma were identified: controlled severe asthma, children who achieved control after triamcinolone, and children who did not achieve control. At baseline, these groups were phenotypically similar. After triamcinolone, discordance between symptoms, lung function, exhaled nitric oxide, and blood eosinophils was noted. Clinical phenotypic predictors were of limited utility in predicting the triamcinolone response, whereas systemic mRNA expression of inflammatory cytokines and chemokines related to IL-2, IL-10, and TNF signaling pathways, namely, AIMP1, CCR2, IL10RB, and IL5, strongly differentiated children who failed to achieve control with triamcinolone administration. CONCLUSIONS Systemic corticosteroid responsiveness in children with severe asthma is heterogeneous. Alternative prediction models that include molecular endotypic as well as clinical phenotypic features are needed to identify which children derive the most clinical benefit from systemic corticosteroid step-up therapy given the potential side effects.
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Affiliation(s)
- Anne M Fitzpatrick
- Department of Pediatrics, Emory University, Atlanta, Ga; Center for Cystic Fibrosis and Airways Disease Research, Children's Healthcare of Atlanta, Atlanta, Ga.
| | | | | | | | | | - Lou Ann S Brown
- Department of Pediatrics, Emory University, Atlanta, Ga; Center for Cystic Fibrosis and Airways Disease Research, Children's Healthcare of Atlanta, Atlanta, Ga
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6
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Konduri V, Li D, Halpert MM, Liang D, Liang Z, Chen Y, Fisher WE, Paust S, Levitt JM, Yao QC, Decker WK. Chemo-immunotherapy mediates durable cure of orthotopic K rasG12D/p53 -/- pancreatic ductal adenocarcinoma. Oncoimmunology 2016; 5:e1213933. [PMID: 27757308 DOI: 10.1080/2162402x.2016.1213933] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Revised: 07/05/2016] [Accepted: 07/06/2016] [Indexed: 12/30/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is the third leading cause of cancer-related death in the United States, exhibiting a five-year overall survival (OS) of only 7% despite aggressive standard of care. Recent advances in immunotherapy suggest potential application of immune-based treatment approaches to PDAC. To explore this concept further, we treated orthotopically established K-rasG12D/p53-/- PDAC tumors with gemcitabine and a cell-based vaccine previously shown to generate durable cell-mediated (TH1) immunity. Tumor progression was monitored by IVIS. The results indicated that the combination of chemotherapy and dendritic cell (DC) vaccination was effective in eliminating tumor, preventing metastasis and recurrence, and significantly enhancing OS. No animal that received the combination therapy relapsed, while mice that received gemcitabine-only or vaccine-only regimens relapsed and progressed. Analysis of circulating PBMC demonstrated that mice receiving the combination therapy exhibited significantly elevated levels of CD8+IFNγ+CCR7+NK1.1+ T-cells with significantly reduced levels of exhausted GITR+CD8+ T-cells after the cessation of treatment. Retro-orbital tumor re-challenge of surviving animals at six-months post-treatment demonstrated durable antitumor immunity only among mice that had received the combination therapy. CD8+ splenocytes derived from surviving mice that had received the combination therapy were sorted into NK1.1pos and NK1.1neg populations and adoptively transferred into naive recipients. Transfer of only 1,500 CD8+NK1.1pos T-cells was sufficient to mediate tumor rejection whereas transfer of 1,500 CD8+NK1.1neg T-cells imparted only minimal effects. The data suggest that addition of a TH1 DC vaccine regimen as an adjuvant to existing therapies can mediate eradication of tumors and offer durable protection against PDAC.
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Affiliation(s)
- Vanaja Konduri
- Department of Pathology & Immunology, Baylor College of Medicine , Houston, TX, USA
| | - Dali Li
- Michael E. Debakey Department of Surgery, Baylor College of Medicine , Houston, TX, USA
| | - Matthew M Halpert
- Department of Pathology & Immunology, Baylor College of Medicine , Houston, TX, USA
| | - Dan Liang
- Department of Pathology & Immunology, Baylor College of Medicine , Houston, TX, USA
| | - Zhengdong Liang
- Michael E. Debakey Department of Surgery, Baylor College of Medicine , Houston, TX, USA
| | - Yunyu Chen
- Department of Pathology & Immunology, Baylor College of Medicine , Houston, TX, USA
| | - William E Fisher
- Michael E. Debakey Department of Surgery, Baylor College of Medicine, Houston, TX, USA; Elkins Pancreas Center, Baylor College of Medicine, Houston, TX, USA; Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX, USA
| | - Silke Paust
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX, USA; Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX, USA; Center for Human Immunobiology, Baylor College of Medicine, Houston, TX, USA
| | - Jonathan M Levitt
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX, USA; Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX, USA; Scott Department of Urology, Baylor College of Medicine, Houston, TX, USA
| | - Qizhi Cathy Yao
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX, USA; Michael E. Debakey Department of Surgery, Baylor College of Medicine, Houston, TX, USA; Elkins Pancreas Center, Baylor College of Medicine, Houston, TX, USA; Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX, USA; Center for Translational Research on Inflammatory Diseases (CTRID), Michael E. DeBakey VA Medical Center, Houston, TX, USA
| | - William K Decker
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX, USA; Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, TX, USA; Center for Cell and Gene Therapy, Baylor College of Medicine, Houston, TX, USA
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7
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Liang D, Halpert MM, Konduri V, Decker WK. Stepping Out of the Cytosol: AIMp1/p43 Potentiates the Link Between Innate and Adaptive Immunity. Int Rev Immunol 2015; 34:367-81. [DOI: 10.3109/08830185.2015.1077829] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Burastero SE, Fabbri M. Aminoacyl-tRNA synthetase-interacting multifunctional protein-1 (AIMP1): the member of a molecular hub with unexpected functions, including CD4 T cell homeostasis. Clin Immunol 2012; 143:207-9. [PMID: 22542741 DOI: 10.1016/j.clim.2012.03.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2012] [Accepted: 03/29/2012] [Indexed: 12/31/2022]
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