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Muir V, Sagadiev S, Liu S, Holder U, Armendariz AM, Suchland E, Meitlis I, Camp N, Giltiay N, Tam JM, Garner EC, Wivagg CN, Shows D, James RG, Lacy-Hulbert A, Acharya M. Transcriptomic analysis of pathways associated with ITGAV/alpha(v) integrin-dependent autophagy in human B cells. Autophagy 2023; 19:926-942. [PMID: 36016494 PMCID: PMC9980515 DOI: 10.1080/15548627.2022.2113296] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Macroautophagy/autophagy proteins have been linked with the development of immune-mediated diseases including lupus, but the mechanisms for this are unclear due to the complex roles of these proteins in multiple immune cell types. We have previously shown that a form of noncanonical autophagy induced by ITGAV/alpha(v) integrins regulates B cell activation by viral and self-antigens, in mice. Here, we investigate the involvement of this pathway in B cells from human tissues. Our data reveal that autophagy is specifically induced in the germinal center and memory B cell subpopulations of human tonsils and spleens. Transcriptomic analysis show that the induction of autophagy is related to unique aspects of activated B cells such as mitochondrial metabolism. To understand the function of ITGAV/alpha(v) integrin-dependent autophagy in human B cells, we used CRISPR-mediated knockdown of autophagy genes. Integrating data from primary B cells and knockout cells, we found that ITGAV/alpha(v)-dependent autophagy limits activation of specific pathways related to B cell responses, while promoting others. These data provide new mechanistic links for autophagy and B-cell-mediated immune dysregulation in diseases such as lupus.
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Affiliation(s)
- Virginia Muir
- Immunology Program, Benaroya Research Institute at Virginia Mason, Seattle, WA, USA
| | - Sara Sagadiev
- Immunology Program, Benaroya Research Institute at Virginia Mason, Seattle, WA, USA.,Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, WA, USA
| | - Shuozhi Liu
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, WA, USA
| | - Ursula Holder
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, WA, USA
| | - Andrea M Armendariz
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, WA, USA
| | - Emmaline Suchland
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, WA, USA
| | - Iana Meitlis
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, WA, USA
| | - Nathan Camp
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, WA, USA
| | - Natalia Giltiay
- Departments of Rheumatology, University of Washington, Seattle, WA, USA
| | - Jenny M Tam
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, USA.,Department of Genetics, Harvard Medical School, Boston, MA, USA
| | - Ethan C Garner
- Department of Molecular and Cell Biology, Harvard University, Cambridge, MA, USA
| | - Carl N Wivagg
- Department of Molecular and Cell Biology, Harvard University, Cambridge, MA, USA
| | - Donna Shows
- Immunology Program, Benaroya Research Institute at Virginia Mason, Seattle, WA, USA
| | - Richard G James
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, WA, USA.,Department of Pediatric, University of Washington, Seattle, WA, USA.,Department of Pharmacology, University of Washington, Seattle, WA, USA
| | - Adam Lacy-Hulbert
- Immunology Program, Benaroya Research Institute at Virginia Mason, Seattle, WA, USA.,Department of Immunology, University of Washington, Seattle, WA, USA
| | - Mridu Acharya
- Immunology Program, Benaroya Research Institute at Virginia Mason, Seattle, WA, USA.,Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, WA, USA.,Department of Pediatric, University of Washington, Seattle, WA, USA
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2
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Ruffner MA, Hu A, Dilollo J, Benocek K, Shows D, Gluck M, Spergel JM, Ziegler SF, Hill DA, Cerosaletti K. Conserved IFN Signature between Adult and Pediatric Eosinophilic Esophagitis. J Immunol 2021; 206:1361-1371. [PMID: 33558373 DOI: 10.4049/jimmunol.2000973] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 01/09/2021] [Indexed: 12/12/2022]
Abstract
Eosinophilic esophagitis (EoE) is an allergic inflammatory disease of the esophagus that occurs in both children and adults. Previous studies of affected tissue from pediatric cohorts have identified prominent signatures of eosinophilia and type 2 inflammation. However, the details of the immune response in adults with EoE are still being elucidated. To determine whether EoE in adults shares inflammatory profiles with those observed in children, we performed RNA sequencing of paired human esophageal biopsies and blood samples from adults with EoE or gastroesophageal reflux disease. Unbiased analysis of differentially expressed genes in tissue revealed a strong IFN signature that was significantly enriched in EoE patients as compared with patients with gastroesophageal reflux disease. Both type I and type II IFN-responsive genes were upregulated in adult biopsies, but not in blood. A similar increase in expression of IFN gene sets was observed in pediatric EoE biopsies as compared with non-EoE samples, and in public pediatric and adult RNA-sequencing data. Finally, we found that human peripheral CD4+ T cells from children with EoE produce IFN-γ upon activation with EoE-causal allergens. Together, this work identifies a conserved IFN signature in pediatric and adult EoE, highlighting a role for non-type 2 inflammatory networks in the disease process in humans.
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Affiliation(s)
- Melanie A Ruffner
- Division of Allergy and Immunology, Children's Hospital of Philadelphia, Philadelphia, PA 19104.,Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104
| | - Alex Hu
- Centers for Systems Immunology, Benaroya Research Institute at Virginia Mason, Seattle, WA 98101
| | - Julianna Dilollo
- Division of Allergy and Immunology, Children's Hospital of Philadelphia, Philadelphia, PA 19104
| | - Kassidy Benocek
- Translational Immunology, Benaroya Research Institute at Virginia Mason, Seattle, WA 98101
| | - Donna Shows
- Translational Immunology, Benaroya Research Institute at Virginia Mason, Seattle, WA 98101
| | - Michael Gluck
- Virginia Mason Medical Center, Seattle, WA 98101; and
| | - Jonathan M Spergel
- Division of Allergy and Immunology, Children's Hospital of Philadelphia, Philadelphia, PA 19104.,Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104
| | - Steven F Ziegler
- Fundamental Immunology, Benaroya Research Institute at Virginia Mason, Seattle, WA 98101
| | - David A Hill
- Division of Allergy and Immunology, Children's Hospital of Philadelphia, Philadelphia, PA 19104; .,Department of Pediatrics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104
| | - Karen Cerosaletti
- Translational Immunology, Benaroya Research Institute at Virginia Mason, Seattle, WA 98101;
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Uchida AM, Boden E, Shows D, James EA, Lord JD. Circulating T cells specific for an intestinal bacterial antigen peptide show a distinctive phenotype and potentially proinflammatory gene expression pattern in Crohn’s disease. The Journal of Immunology 2016. [DOI: 10.4049/jimmunol.196.supp.54.9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Abstract
Background
Crohn’s disease (CD) may be an inappropriate immune reaction to normally well-tolerated intestinal bacterial antigens. Indeed, many CD patients possess abnormally high titers of antibodies specific for intestinal bacterial proteins, such as the outer membrane protein C (OmpC) of E. coli.
Methods
Using MHC-II tetramer-guided epitope-mapping, we identified a specific peptide of OmpC recognized by peripheral T cells from HLA-DR1501+ individuals. HLA-DR1501 tetramers loaded with this OmpC peptide or a known antigenic peptide from influenza virus (Flu) were then used to compare OmpC versus Flu-specific T cells from HLA-DR1501+ healthy and CD donors via flow cytometry and multiplex qPCR.
Results
OmpC-specific T cells more frequently expressed the Th17 marker CD161 (49% v 26%; p=1.1e-18) and the gut-homing integrin α4β7 (43% v 10%; p=1.8e-13) than autologous Flu-specific T cells. Conversely, the Th1 marker CXCR3 was more commonly seen on Flu than OmpC-specific T cells (72% v 61%; p = 0.005). No differences in the frequency or immunophenotype of OmpC-specific T cells were found between healthy and CD patients. However in patients with CD, multiplex PCR of sorted OmpC-specific T cells revealed significantly higher expression of the costimulatory molecule CD226 (p=0.03) compared to healthy controls, with a concomitant trend towards decreased expression of the coinhibitory receptor TIGIT (p=0.1) in CD patients.
Conclusions
OmpC-specific T cells with a gut-tropic, Th17-like phenotype can be found in the peripheral blood, and may have an imbalance in CD226 and TIGIT expression to favor inflammation in CD.
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Blumberg H, Dinh H, Dean C, Trueblood ES, Bailey K, Shows D, Bhagavathula N, Aslam MN, Varani J, Towne JE, Sims JE. IL-1RL2 and its ligands contribute to the cytokine network in psoriasis. J Immunol 2010; 185:4354-62. [PMID: 20833839 DOI: 10.4049/jimmunol.1000313] [Citation(s) in RCA: 122] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Psoriasis is a common immune-mediated disease in European populations; it is characterized by inflammation and altered epidermal differentiation leading to redness and scaling. T cells are thought to be the main driver, but there is also evidence for an epidermal contribution. In this article, we show that treatment of mouse skin overexpressing the IL-1 family member, IL-1F6, with phorbol ester leads to an inflammatory condition with macroscopic and histological similarities to human psoriasis. Inflammatory cytokines thought to be important in psoriasis, such as TNF-α, IL-17A, and IL-23, are upregulated in the mouse skin. These cytokines are induced by and can induce IL-1F6 and related IL-1 family cytokines. Inhibition of TNF or IL-23 inhibits the increased epidermal thickness, inflammation, and cytokine production. Blockade of IL-1F6 receptor also resolves the inflammatory changes in human psoriatic lesional skin transplanted onto immunodeficient mice. These data suggest a role for IL-1F family members in psoriasis.
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Towne J, Shows D, Dinh H, Zhang Y, Dean C, Trueblood E, Bailey K, Sims J, Blumberg H. 30 Inhibition of IL-23 prevents disease in an inducible psoriatic-like mouse model. Cytokine 2008. [DOI: 10.1016/j.cyto.2008.07.071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Maggio-Price L, Bielefeldt-Ohmann H, Treuting P, Iritani BM, Zeng W, Nicks A, Tsang M, Shows D, Morrissey P, Viney JL. Dual infection with Helicobacter bilis and Helicobacter hepaticus in p-glycoprotein-deficient mdr1a-/- mice results in colitis that progresses to dysplasia. Am J Pathol 2005; 166:1793-806. [PMID: 15920164 PMCID: PMC1602406 DOI: 10.1016/s0002-9440(10)62489-3] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 02/16/2005] [Indexed: 12/13/2022]
Abstract
Patients with inflammatory bowel disease (IBD) are at increased risk for developing high-grade dysplasia and colorectal cancer. Animal IBD models that develop dysplasia and neoplasia may help elucidate the link between inflammation and colorectal cancer. Mdr1a-/- mice lack the membrane efflux pump p-glycoprotein and spontaneously develop IBD that can be modulated by infection with Helicobacter sp: H. bilis accelerates development of colitis while H. hepaticus delays disease. In this study, we determined if H. hepaticus infection could prevent H. bilis-induced colitis. Unexpectedly, a proportion of dual-infected mdr1a-/- mice showed IBD with foci of low- to high-grade dysplasia. A group of dual-infected mdr1a-/- animals were maintained long term (39 weeks) by intermittent feeding of medicated wafers to model chronic and relapsing disease. These mice showed a higher frequency of high-grade crypt dysplasia, including invasive adenocarcinoma, possibly because H. hepaticus, in delaying the development of colitis, allows time for transformation of epithelial cells. Colonic epithelial preparations from co-infected mice showed increased expression of c-myc (5- to 12-fold) and interleukin-1alpha/beta (600-fold) by real-time polymerase chain reaction relative to uninfected wild-type and mdr1a-/- animals. This animal model may have particular relevance to human IBD and colorectal cancer because certain human MDR1 polymorphisms have been linked to ulcerative colitis and increased risk for colorectal cancer.
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Affiliation(s)
- Lillian Maggio-Price
- Department of Comparative Medicine, School of Medicine, University of Washington, Seattle, WA 98195, USA.
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Maggio-Price L, Shows D, Waggie K, Burich A, Zeng W, Escobar S, Morrissey P, Viney JL. Helicobacter bilis infection accelerates and H. hepaticus infection delays the development of colitis in multiple drug resistance-deficient (mdr1a-/-) mice. Am J Pathol 2002; 160:739-51. [PMID: 11839595 PMCID: PMC1850632 DOI: 10.1016/s0002-9440(10)64894-8] [Citation(s) in RCA: 112] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
mdr1a-deficient mice lack P-glycoprotein and spontaneously develop colitis with age. Helicobacter spp. are gram-negative organisms that have been associated with colitis in certain mouse strains, but Helicobacter spp. have been excluded as contributing to the spontaneous colitis that develops in mdr1a-/- mice. We wished to determine whether infection with either H. bilis or H. hepaticus would accelerate the development of inflammatory bowel disease (IBD) in mdr1a-/- mice. We found that H. bilis infection induced diarrhea, weight loss, and IBD in mdr1a-/- mice within 6 to 17 weeks post-inoculation and before the expected onset of spontaneous IBD. Histopathology of H. bilis-induced IBD included crypt hyperplasia, inflammatory cell infiltrates, crypt abscesses, and obliteration of normal gut architecture. Reverse transcription-polymerase chain reaction and Taqman analysis from colonic tissue showed increased transcripts for interferon-gamma and interleukin-10 from H. bilis-infected colitic mdr1a-/- mice. Additionally, mesenteric lymph nodes had increased cellularity with expansion of CD4+ and CD8+ T cells and B cells and increased proliferation to soluble H. bilis antigens with elaboration of interferon-gamma, tumor necrosis factor-alpha and interleukin-10. In contrast, H. hepaticus infection of mdr1a-/- mice did not accelerate disease but rather delayed the onset of spontaneous colitis which was milder in severity. mdr1a-/- mice infected with Helicobacter spp. may provide a useful tool to explore the pathogenesis of microbial-induced IBD in a model with a presumed epithelial cell "barrier" defect.
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Affiliation(s)
- Lillian Maggio-Price
- Department of Comparative Medicine, School of Medicine, University of Washington, Box 357190, Seattle, WA 981295, USA
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Reddy P, Slack JL, Davis R, Cerretti DP, Kozlosky CJ, Blanton RA, Shows D, Peschon JJ, Black RA. Functional analysis of the domain structure of tumor necrosis factor-alpha converting enzyme. J Biol Chem 2000; 275:14608-14. [PMID: 10799547 DOI: 10.1074/jbc.275.19.14608] [Citation(s) in RCA: 393] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Many membrane-bound proteins, including cytokines, receptors, and growth factors, are proteolytically cleaved to release a soluble form of their extracellular domain. The tumor necrosis factor (TNF)-alpha converting enzyme (TACE/ADAM-17) is a transmembrane metalloproteinase responsible for the proteolytic release or "shedding" of several cell-surface proteins, including TNF and p75 TNFR. We established a TACE-reconstitution system using TACE-deficient cells co-transfected with TACE and substrate cDNAs to study TACE function and regulation. Using the TACE-reconstitution system, we identified two additional substrates of TACE, interleukin (IL)-1R-II and p55 TNFR. Using truncations and chimeric constructs of TACE and another ADAM family member, ADAM-10, we studied the function of the different domains of TACE in three shedding activities. We found that TACE must be expressed with its membrane-anchoring domain for phorbol ester-stimulated shedding of TNF, p75 TNFR, and IL-1R-II, but that the cytoplasmic domain is not required for the shedding of these substrates. The catalytic domain of ADAM-10 could not be functionally substituted for that of TACE. IL-1R-II shedding required the cysteine-rich domain of TACE as well as the catalytic domain, whereas TNF and p75 TNFR shedding required only the tethered TACE catalytic domain.
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Affiliation(s)
- P Reddy
- Department of Cell Sciences, Immunex Corporation, Seattle, Washington 98101, USA
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