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Yin XT, Baugnon NK, Krishnan R, Potter CA, Yarlagadda S, Keadle TL, Stuart PM. CD137 costimulation is associated with reduced herpetic stromal keratitis and with developing normal CD8 + T cells in trigeminal ganglia. J Gen Virol 2022; 103. [PMID: 35766977 PMCID: PMC10027025 DOI: 10.1099/jgv.0.001756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Costimulatory interactions can be critical in developing immune responses to infectious agents. We recently reported that herpes simplex type 1 (HSV-1) infections of the cornea require a functional CD28-CD80/86 interaction to not only reduce the likelihood of encephalitis, but also to mediate herpetic stromal keratitis (HSK) following viral reactivation. In this same spirit we decided to determine the role that CD137 costimulation plays during HSK. Using both B6-CD137L-/- mice, as well as antagonistic and agonistic antibodies to CD137 we characterize the immune response and to what extent CD137 plays an important role during this disease. Immune responses were measured in both the cornea and in the trigeminal ganglia where the virus forms a latent infection. We demonstrate that CD137 costimulation leads to reduced corneal disease. Interestingly, we observed that lack of CD137 costimulation resulted in significantly reduced CD8+ T expansion and function in the trigeminal ganglia. Finally, we showed that viruses that have been genetically altered to express CD137 display significantly reduced corneal disease, though they did present similar levels of trigeminal infection and peripheral virus production following reactivation of a latent infection. CD137 interactions lead to reduced HSK and are necessary to develop robust trigeminal CD8+ T cell responses.
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Affiliation(s)
- Xiao-Tang Yin
- Department of Ophthalmology, Saint Louis University School of Medicine, St. Louis, MO, USA
| | - Nicholas K Baugnon
- Department of Ophthalmology, Saint Louis University School of Medicine, St. Louis, MO, USA
| | - Rohini Krishnan
- Department of Ophthalmology, Saint Louis University School of Medicine, St. Louis, MO, USA
| | - Chloe A Potter
- Department of Ophthalmology, Saint Louis University School of Medicine, St. Louis, MO, USA
| | - Sudha Yarlagadda
- Department of Ophthalmology, Saint Louis University School of Medicine, St. Louis, MO, USA
| | - Tammie L Keadle
- Department of Biology, Washington University, St. Louis, MO, USA
| | - Patrick M Stuart
- Department of Ophthalmology, Saint Louis University School of Medicine, St. Louis, MO, USA
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Zhan MR, Gao XZ, Wang C, Peng F, Wang XM, Xu HQ, Niu JQ. Elevated soluble 4-1BB is associated with serum markers of hepatitis B virus in patients with chronic hepatitis B. World J Clin Cases 2021; 9:1619-1630. [PMID: 33728305 PMCID: PMC7942032 DOI: 10.12998/wjcc.v9.i7.1619] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 12/13/2020] [Accepted: 12/23/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Previous studies have suggested that the costimulatory molecule 4-1BB plays pivotal roles in regulating immunity during chronic viral infection. However, up to now, there are few studies about 4-1BB in chronic hepatitis B (CHB).
AIM To clarify this issue, we report our comprehensive study results on the expression levels of 4-1BB in patients with CHB.
METHODS From September 2018 to June 2019, a total of 64 patients with CHB were recruited from the Department of Hepatology, The First Hospital of Jilin University. Peripheral blood samples were collected from 52 treatment-naïve and 12 entecavir-treated patients with CHB as well as 37 healthy donors (including 24 healthy adults and 13 healthy children). The levels of soluble 4-1BB (s4-1BB) in plasma were measured by ELISA. 4-1BB mRNA expression in peripheral blood mononuclear cells was detected by real-time quantitative PCR.
RESULTS The s4-1BB levels in the plasma of patients with CHB were significantly higher than those in healthy adults (94.390 ± 7.393 ng/mL vs 8.875 ± 0.914 ng/mL, P < 0.001). In addition, the s4-1BB level in plasma was significantly increased in patients with a higher viral load and a disease flare up. However, there were no significant differences between treatment-naïve and entecavir-treated patients. Interestingly, among treatment-naïve patients with CHB, the levels of s4-1BB in plasma had a significant positive correlation with hepatitis B surface antigen, hepatitis B virus DNA, hepatitis B e antigen, and triglyceride levels (r = 0.748, P < 0.001; r = 0.406, P = 0.004; r = 0.356, P = 0.019 and r = -0.469, P = 0.007, respectively). The 4-1BB mRNA expression was higher in the peripheral blood mononuclear cells of patients with CHB than in the peripheral blood mononuclear cells of healthy adults, but the difference was not statistically significant.
CONCLUSION These results suggest that the levels of s4-1BB may be associated with pathogenesis of hepatitis B virus and therefore may be a promising biomarker for disease progression.
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Affiliation(s)
- Meng-Ru Zhan
- Department of Hepatology, The First Hospital of Jilin University, Changchun 130021, Jilin Province, China
| | - Xiu-Zhu Gao
- Department of Hepatology, The First Hospital of Jilin University, Changchun 130021, Jilin Province, China
- Phase I Clinical Research Center, The First Hospital of Jilin University, Changchun 130021, Jilin Province, China
| | - Chang Wang
- Department of Hepatology, The First Hospital of Jilin University, Changchun 130021, Jilin Province, China
| | - Fei Peng
- Department of Hepatology, The First Hospital of Jilin University, Changchun 130021, Jilin Province, China
| | - Xiao-Mei Wang
- Department of Hepatology, The First Hospital of Jilin University, Changchun 130021, Jilin Province, China
| | - Hong-Qin Xu
- Department of Hepatology, The First Hospital of Jilin University, Changchun 130021, Jilin Province, China
| | - Jun-Qi Niu
- Department of Hepatology, The First Hospital of Jilin University, Changchun 130021, Jilin Province, China
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Miki H, Han KH, Scott D, Croft M, Kang YJ. 4-1BBL Regulates the Polarization of Macrophages, and Inhibition of 4-1BBL Signaling Alleviates Imiquimod-Induced Psoriasis. THE JOURNAL OF IMMUNOLOGY 2020; 204:1892-1903. [PMID: 32041783 DOI: 10.4049/jimmunol.1900983] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Accepted: 01/15/2020] [Indexed: 12/16/2022]
Abstract
4-1BBL, a member of the TNF superfamily, regulates the sustained production of inflammatory cytokines in macrophages triggered by TLR signaling. In this study, we have investigated the role of 4-1BBL in macrophage metabolism and polarization and in skin inflammation using a model of imiquimod-induced psoriasis in mice. Genetic ablation or blocking of 4-1BBL signaling by Ab or 4-1BB-Fc alleviated the pathology of psoriasis by regulating the expression of inflammatory cytokines associated with macrophage activation and regulated the polarization of macrophages in vitro. We further linked this result with macrophage by finding that 4-1BBL expression during the immediate TLR response was dependent on glycolysis, mitochondrial oxidative phosphorylation, and fatty acid metabolism, whereas the late-phase 4-1BBL-mediated sustained inflammatory response was dependent on glycolysis and fatty acid synthesis. Correlating with this, administration of a fatty acid synthase inhibitor, cerulenin, also alleviated the pathology of psoriasis. We further found that 4-1BBL-mediated psoriasis development is independent of its receptor 4-1BB, as a deficiency of 4-1BB augmented the severity of psoriasis linked to a reduced regulatory T cell population and increased IL-17A expression in γδ T cells. Additionally, coblocking of 4-1BBL signaling and IL-17A activity additively ameliorated psoriasis. Taken together, 4-1BBL signaling regulates macrophage polarization and contributes to imiquimod-induced psoriasis by sustaining inflammation, providing a possible avenue for psoriasis treatment in patients.
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Affiliation(s)
- Haruka Miki
- Division of Immune Regulation, La Jolla Institute for Immunology, La Jolla, CA 92037
| | - Kyung Ho Han
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA 92037
| | - David Scott
- Cancer Metabolism Core, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037
| | - Michael Croft
- Division of Immune Regulation, La Jolla Institute for Immunology, La Jolla, CA 92037; .,Department of Medicine, University of California San Diego, La Jolla, CA 92037
| | - Young Jun Kang
- Department of Immunology and Microbial Sciences, The Scripps Research Institute, La Jolla, CA 92037; and .,Molecular Medicine Research Institute, Sunnyvale, CA 94085
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Yeung MY, Grimmig T, Sayegh MH. Costimulation Blockade in Transplantation. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1189:267-312. [PMID: 31758538 DOI: 10.1007/978-981-32-9717-3_10] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
T cells play a pivotal role in orchestrating immune responses directed against a foreign (allogeneic) graft. For T cells to become fully activated, the T-cell receptor (TCR) must interact with the major histocompatibility complex (MHC) plus peptide complex on antigen-presenting cells (APCs), followed by a second "positive" costimulatory signal. In the absence of this second signal, T cells become anergic or undergo deletion. By blocking positive costimulatory signaling, T-cell allo-responses can be aborted, thus preventing graft rejection and promoting long-term allograft survival and possibly tolerance (Alegre ML, Najafian N, Curr Mol Med 6:843-857, 2006; Li XC, Rothstein DM, Sayegh MH, Immunol Rev 229:271-293, 2009). In addition, costimulatory molecules can provide negative "coinhibitory" signals that inhibit T-cell activation and terminate immune responses; strategies to promote these pathways can also lead to graft tolerance (Boenisch O, Sayegh MH, Najafian N, Curr Opin Organ Transplant 13:373-378, 2008). However, T-cell costimulation involves an incredibly complex array of interactions that may act simultaneously or at different times in the immune response and whose relative importance varies depending on the different T-cell subsets and activation status. In transplantation, the presence of foreign alloantigen incites not only destructive T effector cells but also protective regulatory T cells, the balance of which ultimately determines the fate of the allograft (Lechler RI, Garden OA, Turka LA, Nat Rev Immunol 3:147-158, 2003). Since the processes of alloantigen-specific rejection and regulation both require activation of T cells, costimulatory interactions may have opposing or synergistic roles depending on the cell being targeted. Such complexities present both challenges and opportunities in targeting T-cell costimulatory pathways for therapeutic purposes. In this chapter, we summarize our current knowledge of the various costimulatory pathways in transplantation and review the current state and challenges of harnessing these pathways to promote graft tolerance (summarized in Table 10.1).
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Affiliation(s)
- Melissa Y Yeung
- Department of Medicine, Renal Division, Brigham and Women's Hospital, Boston, MA, USA. .,Harvard Medical School, Boston, MA, USA.
| | - Tanja Grimmig
- Department of Surgery, Molecular Oncology and Immunology, University of Wuerzburg, Wuerzburg, Germany
| | - Mohamed H Sayegh
- Department of Medicine, Renal Division, Brigham and Women's Hospital, Boston, MA, USA.,Harvard Medical School, Boston, MA, USA.,Department of Medicine and Immunology, American University of Beirut, Beirut, Lebanon
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Bartkowiak T, Curran MA. 4-1BB Agonists: Multi-Potent Potentiators of Tumor Immunity. Front Oncol 2015; 5:117. [PMID: 26106583 PMCID: PMC4459101 DOI: 10.3389/fonc.2015.00117] [Citation(s) in RCA: 188] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Accepted: 05/11/2015] [Indexed: 01/12/2023] Open
Abstract
Immunotherapy is a rapidly expanding field of oncology aimed at targeting, not the tumor itself, but the immune system combating the cancerous lesion. Of the many approaches currently under study to boost anti-tumor immune responses; modulation of immune co-receptors on lymphocytes in the tumor microenvironment has thus far proven to be the most effective. Antibody blockade of the T cell co-inhibitory receptor cytotoxic T lymphocyte antigen-4 (CTLA-4) has become the first FDA approved immune checkpoint blockade; however, tumor infiltrating lymphocytes express a diverse array of additional stimulatory and inhibitory co-receptors, which can be targeted to boost tumor immunity. Among these, the co-stimulatory receptor 4-1BB (CD137/TNFSF9) possesses an unequaled capacity for both activation and pro-inflammatory polarization of anti-tumor lymphocytes. While functional studies of 4-1BB have focused on its prominent role in augmenting cytotoxic CD8 T cells, 4-1BB can also modulate the activity of CD4 T cells, B cells, natural killer cells, monocytes, macrophages, and dendritic cells. 4-1BB’s expression on both T cells and antigen presenting cells, coupled with its capacity to promote survival, expansion, and enhanced effector function of activated T cells, has made it an alluring target for tumor immunotherapy. In contrast to immune checkpoint blocking antibodies, 4-1BB agonists can both potentiate anti-tumor and anti-viral immunity, while at the same time ameliorating autoimmune disease. Despite this, 4-1BB agonists can trigger high grade liver inflammation which has slowed their clinical development. In this review, we discuss how the underlying immunobiology of 4-1BB activation suggests the potential for therapeutically synergistic combination strategies in which immune adverse events can be minimized.
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Affiliation(s)
- Todd Bartkowiak
- Department of Immunology, University of Texas MD Anderson Cancer Center , Houston, TX , USA ; The University of Texas Graduate School of Biomedical Sciences at Houston , Houston, TX , USA
| | - Michael A Curran
- Department of Immunology, University of Texas MD Anderson Cancer Center , Houston, TX , USA ; The University of Texas Graduate School of Biomedical Sciences at Houston , Houston, TX , USA
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6
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Bang BR, Kim SJ, Yagita H, Croft M, Kang YJ. Inhibition of 4-1BBL-regulated TLR response in macrophages ameliorates endotoxin-induced sepsis in mice. Eur J Immunol 2015; 45:886-92. [PMID: 25501291 DOI: 10.1002/eji.201445174] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Revised: 11/08/2014] [Accepted: 12/05/2014] [Indexed: 12/22/2022]
Abstract
Activation of Toll-like receptor (TLR) signaling rapidly induces the expression of inflammatory genes, which is persistent for a defined period of time. However, uncontrolled and excessive inflammation may lead to the development of diseases. 4-1BB ligand (4-1BBL) plays an essential role in sustaining the expression of inflammatory cytokines by interacting with TLRs during macrophage activation. Here, we show that inhibition of 4-1BBL signaling reduced the inflammatory responses in macrophages and ameliorated endotoxin-induced sepsis in mice. A 4-1BB-Fc fusion protein significantly reduced TNF production in macrophages by blocking the oligomerization of TLR4 and 4-1BBL. Administration of 4-1BB-Fc suppressed LPS-induced sepsis by reducing TNF production, and the coadministration of anti-TNF and 4-1BB-Fc provided better protection against LPS-induced sepsis. Taken together, these observations suggest that inhibition of the TLR/4-1BBL complex formation may be highly efficient in protecting against continued inflammation, and that 4-1BB-Fc could be a potential therapeutic target for the treatment of inflammatory diseases.
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Affiliation(s)
- Bo Ram Bang
- Department of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, CA, USA
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7
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Buela KAG, Hendricks RL. Cornea-infiltrating and lymph node dendritic cells contribute to CD4+ T cell expansion after herpes simplex virus-1 ocular infection. THE JOURNAL OF IMMUNOLOGY 2014; 194:379-87. [PMID: 25422507 DOI: 10.4049/jimmunol.1402326] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
After HSV type 1 corneal infection, CD4(+) T cells are expanded in the draining lymph nodes (DLNs) and restimulated in the infected cornea to regulate the destructive inflammatory disease herpes stromal keratitis (HSK). The contribution of cornea resident, cornea-infiltrating, and DLN resident dendritic cells (DC) to CD4(+) T cell expansion in DLNs and restimulation in corneas is unknown. Cornea resident and cornea-infiltrating DCs were selectively depleted by timed local (subconjunctival) injection of diphtheria toxin (DT) into mice that express high-affinity DT receptors from the CD11c promoter. Corneal and DLN DCs were depleted by systemic (i.p.) DT treatment. We found that: 1) DCs that were resident in the cornea and DLNs at the time of infection or that migrate into the tissues during the first 24 h postinfection were not required for CD4(+) T cell expansion; 2) DCs that infiltrated the cornea >24 h postinfection were responsible for most of the CD4(+) T cell expansion measured in the DLNs at 3 and 7 d postinfection (dpi); 3) non-cornea-derived DCs that infiltrate the DLNs >24 h postinfection made a modest contribution to CD4(+) T cell expansion at 3 dpi but did not contribute at 7 dpi; and 4) surprisingly, HSK development between 7 and 21 dpi did not require corneal DCs. DC-independent HSK development appears to reflect close interactions of CD4(+) T cells with MHC class II(+) corneal epithelial cells and macrophages in infected DC-depleted corneas.
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Affiliation(s)
- Kristine-Ann G Buela
- Graduate Program in Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213; Eye and Ear Institute, Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213
| | - Robert L Hendricks
- Eye and Ear Institute, Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213; Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213; and Department of Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213
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8
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Luo Y, Wang M, Pang Z, Jiang F, Chen J, Zhang J. Locally instilled tumor necrosis factor α antisense oligonucleotide contributes to inhibition of TH 2-driven pulmonary fibrosis via induced CD4+ CD25+ Foxp3+ regulatory T cells. J Gene Med 2014; 15:441-52. [PMID: 24339053 DOI: 10.1002/jgm.2750] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Revised: 10/29/2013] [Accepted: 12/09/2013] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND Anti-tumor necrosis factor α therapeutics has the potential to alleviate pulmonary fibrosis. However, the systemic administration of anti-tumor necrosis factor α agents has brought about contradictory results and frequent adverse effects, such as infections, immunogenicity and malignancies, amongst others. In the present study, we attempted the local administration of tumor necrosis factor α antisense oligonucleotide and evaluated the treatment effects on pulmonary fibrosis in a bleomycin-induced pulmonary fibrosis mouse model. METHODS Flow cytometry for regulatory T cells, reverse transcriptase-polymerase chain reaction for crucial gene expression, western blotting for crucial protein products, immunofluorescent analysis for T(H)2 cells and myofibroblasts, as well as histology analysis for pathological examination, were used. RESULTS By local administration of tumor necrosis factor α antisense oligonucleotide, we investigated whether tumor necrosis factor α expression in epithelial cells was significantly inhibited and extracellular matrix overexpression was dramatically reduced. These treatment effects were associated with induced regulatory T cells, reduced T(H)2 cells and generally decreased T(H)2-type cytokine expression. Systemic immunosuppression was not triggered by local antisense oligonucleotide administration because the proportion of regulatory T cells in the blood, thymus or spleen was not affected. CONCLUSIONS These findings demonstrate that local administration of tumor necrosis factor α antisense oligonucleotide contributes to anti-fibrotic action via a sustained up-regulated level of regulatory T cells, which inhibits T(H)2-biased responses, pro-fibrotic mediator production and extracellular matrix deposition, with no systemic immunosupression associated with systemically induced regulatory T cells.
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Affiliation(s)
- Yi Luo
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
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9
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Wortzman ME, Clouthier DL, McPherson AJ, Lin GHY, Watts TH. The contextual role of TNFR family members in CD8+T-cell control of viral infections. Immunol Rev 2013; 255:125-48. [DOI: 10.1111/imr.12086] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2013] [Accepted: 04/29/2013] [Indexed: 12/22/2022]
Affiliation(s)
| | - Derek L. Clouthier
- The Department of Immunology; University of Toronto; Toronto; ON; Canada
| | - Ann J. McPherson
- The Department of Immunology; University of Toronto; Toronto; ON; Canada
| | - Gloria H. Y. Lin
- The Department of Immunology; University of Toronto; Toronto; ON; Canada
| | - Tania H. Watts
- The Department of Immunology; University of Toronto; Toronto; ON; Canada
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10
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Luo Y, Pang Z, Zhu Q, Cai X, Yin Y, Wang M, Zhu J, Chen J, Zeng K, Zhang C, Zhang J. Locally instilled tumor necrosis factor-α antisense oligonucleotide inhibits allergic inflammation via the induction of Tregs. J Gene Med 2012; 14:374-83. [PMID: 22576979 DOI: 10.1002/jgm.2631] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Anti-tumor necrosis factor (TNF)-α therapeutics has the potential to alleviate allergic inflammation. However, in previous studies, the systemic administration of anti-TNF-α agents was frequently accompanied by many adverse effects, such as infection, immunogenicity and malignancy. Efforts are made in the present study to evaluate whether or not local administration of TNF-α antisense oligonucleotide would inhibit allergic airway inflammation and influence systemic immune responses in an ovalbumin-induced asthmatic murine model. METHODS The treatment effects of TNF-α antisense oligonucleotide on mice, as well as the alternative proportion of regulatory T cells and T(H) 2 cells, were examined and compared with untreated mice. RESULTS Local administration of TNF-α antisense oligonucleotide resulted in significantly inhibited TNF-α expression, remarkably decreased inflammatory cell infiltration and dramatically reduced mucus hypersecretion. These treatment effects were associated with induced CD4(+) CD25(+) Foxp3(+) regulatory T cells, reduced T(H) 2 cells and generally decreased T(H) 2-type cytokines expression in bronchoalveolar lavage fluid. Systemic immunosuppression was not triggered by local antisense oligonucleotide administration because the proportion of CD4(+) CD25(+) Foxp3(+) regulatory T cells in the blood, thymus or spleen was not affected. Attenuated 4-1BBL expression was likely involved in the alternative proportion of T cells. CONCLUSIONS These findings demonstrate that local administration of TNF-α antisense oligonucleotide contributes to anti-inflammatory action via the enhancement of regulatory T cells-mediated immune tolerance, which is not accompanied by systemic immunosuppression associated with systemically-induced regulatory T cells.
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Affiliation(s)
- Yi Luo
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, People's Republic of China
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11
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Zhao Y, Tahiliani V, Salek-Ardakani S, Croft M. Targeting 4-1BB (CD137) to enhance CD8 T cell responses with poxviruses and viral antigens. Front Immunol 2012; 3:332. [PMID: 23162550 PMCID: PMC3492829 DOI: 10.3389/fimmu.2012.00332] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2012] [Accepted: 10/19/2012] [Indexed: 11/13/2022] Open
Abstract
Attenuated vaccinia virus (VACV) vectors are considered prime vaccine candidates for use in immunotherapy of infectious disease. In spite of this, recent data show that the level of attenuation may hamper the efficient generation of protective CD8 T cells. This suggests that additional adjuvant-like activities may need to be combined with attenuated VACV for optimal vaccination. Stimulatory reagents to the TNFR family molecule 4-1BB (CD137) may represent such an adjuvant for vaccination. Previous murine studies have found that 4-1BB can participate in optimal priming of effector and memory CD8 T cells in response to several virus infections, and concordantly direct stimulation of 4-1BB with agonist reagents effectively boosts the CD8 T cell response against those viruses. In contrast, we recently reported that 4-1BB plays no role in the response to a virulent strain of VACV, questioning whether agonists of 4-1BB will be useful adjuvants for vaccination with VACV vectors. Here we show that agonist anti-4-1BB strongly enhanced the primary viral-specific effector CD8 T cell response during infection with live virulent VACV and attenuated VACV, and during immunization with VACV peptides given in IFA. However, accumulation of memory CD8 T cells was enhanced only following infection with virulent VACV or with peptide vaccination, but not with attenuated VACV, correlating in part with more transient expression of 4-1BB on CD8 T cells with attenuated virus. Our data therefore suggest that 4-1BB may be a promising candidate for targeting as an adjuvant for short-term enhancement of CD8 T cell responses with VACV vaccine strategies, but additional receptors may need to be engaged with 4-1BB to allow long-term CD8 T cell immunity with attenuated VACV vectors.
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Affiliation(s)
- Yuan Zhao
- Division of Immune Regulation, La Jolla Institute for Allergy and Immunology La Jolla, CA, USA
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12
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Kwon B. Regulation of Inflammation by Bidirectional Signaling through CD137 and Its Ligand. Immune Netw 2012; 12:176-80. [PMID: 23213310 PMCID: PMC3509161 DOI: 10.4110/in.2012.12.5.176] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2012] [Revised: 10/04/2012] [Accepted: 10/12/2012] [Indexed: 12/17/2022] Open
Abstract
Although the majority of research on CD137 has been directed to T cells, it is becoming clear that this molecule has distinct functions in other lineages of cells, including non-hematopoietic cells. In particular, emerging evidence suggests that the CD137-its ligand (CD137L) network involving immune cells and non-immune cells, directly or indirectly regulates inflammation in both positive and negative manners. Bidirectional signaling through both CD137 and CD137L is critical in the evolution of inflammation: 1) CD137L signaling plays an indispensible role in the activation and recruitment of neutrophils by inducing the production of proinflammatory cytokines and chemokines in hematopoietic and non-hematopoietic cells such as macrophages, endothelial cells and epithelial cells; 2) CD137 signaling in NK cells and T cells is required for their activation and can influence other cells participating in inflammation via either their production of proinflammatory cytokines or engagement of CD137L by their cell surface CD137: 3) CD137 signaling can suppress inflammation by controlling regulatory activities of dendritic cells and regulatory T cells. As recognition grows of the role of dysregulated CD137 or CD137L stimulation in inflammatory diseases, significant efforts will be needed to develop antagonists to CD137 or CD137L.
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Affiliation(s)
- Byungsuk Kwon
- School of Biological Sciences, University of Ulsan, Ulsan 680-749, Korea
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13
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Behrendt AK, Meyer-Bahlburg A, Hansen G. CD137 deficiency does not affect development of airway inflammation or respiratory tolerance induction in murine models. Clin Exp Immunol 2012; 168:308-17. [PMID: 22519594 DOI: 10.1111/j.1365-2249.2012.04572.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
The co-stimulatory molecule CD137 (4-1BB) plays a crucial role in the development and persistence of asthma, characterized by eosinophilic airway inflammation, mucus hypersecretion, airway hyperreactivity, increased T helper type 2 (Th2) cytokine production and serum immunoglobulin (Ig)E levels. We have shown previously that application of an agonistic CD137 monoclonal antibody (mAb) prevented and even reversed an already established asthma phenotype. In the current study we investigated whether deficiency of the CD137/CD137L pathway affects the development of allergic airway inflammation or the opposite immune reaction of respiratory tolerance. CD137⁻/⁻ and wild-type (WT) mice were sensitized and challenged with the model allergen ovalbumin (OVA) and analysed for the presence of allergic disease parameters (allergy protocol). Some animals were tolerized by mucosal application of OVA prior to transferring the animals to the allergy protocol to analyse the effect of CD137 loss on tolerance induction (tolerance protocol). Eosinophilic airway inflammation, mucus hypersecretion, Th2 cytokine production and elevated allergen-specific serum IgE levels were increased equally in CD137⁻/⁻ and WT mice. Induction of tolerance resulted in comparable protection from the development of an allergic phenotype in both mouse strains. In addition, no significant differences could be identified in CD4⁺, CD8⁺ and forkhead box protein 3 (FoxP3⁺) regulatory T cells, supporting the conclusion that CD137⁻/⁻ mice show equal Th2-mediated immune responses compared to WT mice. Taken together, CD137⁻/⁻ mice and WT mice develop the same phenotype in a murine model of Th2-mediated allergic airway inflammation and respiratory tolerance.
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Affiliation(s)
- A-K Behrendt
- Department of Pediatric Pulmonology, Allergology and Neonatology, Hannover Medical School, Hannover, Germany
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Recurrent herpetic stromal keratitis in mice: a model for studying human HSK. Clin Dev Immunol 2012; 2012:728480. [PMID: 22593769 PMCID: PMC3347728 DOI: 10.1155/2012/728480] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2011] [Revised: 02/20/2012] [Accepted: 02/20/2012] [Indexed: 12/18/2022]
Abstract
Herpes simplex virus 1 (HSV-1) infection of the cornea leads to a potentially blinding disease, termed herpetic stromal keratitis (HSK) that is characterized by lesions of an immunoinflammatory nature. In spite of the fact that HSK typically presents as a recurrent disease due to reactivation of virus which latently infects the trigeminal ganglia, most murine studies of HSK have employed a primary and not recurrent model of the disease. This report documents the several recurrent models of HSK that have been developed and how data generated from these models differs in some important aspects from data generated following primary infection of the cornea. Chief among these differences is the fact that recurrent HSK takes place in the context of an animal that has a preexisting anti-HSV immune response, while primary HSK occurs in an animal that is developing such a response. We will document both differences and similarities that derive from this fundamental difference in these models with an eye towards possible vaccines and therapies that demonstrate promise in treating HSK.
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15
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Snell LM, Lin GHY, McPherson AJ, Moraes TJ, Watts TH. T-cell intrinsic effects of GITR and 4-1BB during viral infection and cancer immunotherapy. Immunol Rev 2012; 244:197-217. [PMID: 22017440 DOI: 10.1111/j.1600-065x.2011.01063.x] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
GITR [glucocorticoid inducible tumor necrosis factor receptor (TNFR)-related protein] and 4-1BB are costimulatory TNFR family members that are expressed on regulatory and effector T cells as well as on other cells of the immune system. Here we discuss the role of GITR and 4-1BB on T cells during viral infections and in cancer immunotherapy. Systemic treatment with agonistic anti-4-1BB antibody leads to a number of immune system abnormalities, and clinical trials of anti-4-1BB have been terminated. However, other modes of 4-1BB ligation may be less toxic. To date, similar toxicities have not been reported for anti-GITR treatment of mice, although anti-GITR antibodies can exacerbate mouse autoimmune models. Intrinsic effects of GITR and 4-1BB on effector T cells appear to predominate over their effects on other cell types in some models. Despite their similarities in enhancing T-cell survival, 4-1BB and GITR are clearly not redundant, and both pathways are required for maximal CD8(+) T-cell responses and mouse survival following severe respiratory influenza infection. GITR uses TNFR-associated factor (TRAF) 2 and TRAF5, whereas 4-1BB recruits TRAF1 and TRAF2 to mediate survival signaling in T cells. The differential use of signaling adapters combined with their differential expression may explain the non-redundant roles of GITR and 4-1BB in the immune system.
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Affiliation(s)
- Laura M Snell
- Department of Immunology, University of Toronto, Toronto, ON, Canada
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16
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Reverse signaling through the costimulatory ligand CD137L in epithelial cells is essential for natural killer cell-mediated acute tissue inflammation. Proc Natl Acad Sci U S A 2011; 109:E13-22. [PMID: 22160719 DOI: 10.1073/pnas.1112256109] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Renal ischemia-reperfusion injury (IRI) after kidney transplantation is a major cause of delayed graft function. Even though IRI is recognized as a highly coordinated and specific process, the pathways and mechanisms through which the innate response is activated are poorly understood. In this study, we used a mouse model of acute kidney IRI to examine whether the interactions of costimulatory receptor CD137 and its ligand (CD137L) are involved in the early phase of acute kidney inflammation caused by IRI. We report here that the specific expressions of CD137 on natural killer cells and of CD137L on tubular epithelial cells (TECs) are required for acute kidney IRI. Reverse signaling through CD137L in TECs results in their production of the chemokine (C-X-C motif) receptor 2 ligands CXCL1 and CXCL2 and the subsequent induction of neutrophil recruitment, resulting in a cascade of proinflammatory events during kidney IRI. Our findings identify an innate pathogenic pathway for renal IRI involving the natural killer cell-TEC-neutrophil axis, whereby CD137-CD137L interactions provide the causal contribution of epithelial cell dysregulation to renal IRI. The CD137L reverse signaling pathway in epithelial cells therefore may represent a good target for blocking the initial stage of inflammatory diseases, including renal IRI.
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17
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Hawthorne KM, Dana R, Chodosh J. Delayed type hypersensitivity in the pathogenesis of recurrent herpes stromal keratitis. Semin Ophthalmol 2011; 26:246-50. [PMID: 21958170 DOI: 10.3109/08820538.2011.588659] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Recurrent herpes stromal keratitis (HSK) is one of the leading causes of blindness in the developed world. Cyokines characteristic of Th1 cells (in particular IFN-γ and IL-2) have been shown to dominate in HSK in addition to mechanisms by nonspecific, antigen-independent effector cells such as neutrophils, basophils, and monocytes. More recently, the migration and maturation of dendritic cells (DC) within the corneal stroma of patients with HSK have been recognized as contributors to recurrent disease, suggesting a role for delayed type hypersensitivity (DTH) in the immunopathogenesis of HSK. The role of DC and DTH in recurrent HSK has not been studied extensively and experimental models of recurrent HSK focusing on DTH as the pathogenesis and viral particles as the triggering antigen may contribute to better understanding of the disease.
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18
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Kim CS, Kim JG, Lee BJ, Choi MS, Choi HS, Kawada T, Lee KU, Yu R. Deficiency for costimulatory receptor 4-1BB protects against obesity-induced inflammation and metabolic disorders. Diabetes 2011; 60:3159-68. [PMID: 21998397 PMCID: PMC3219944 DOI: 10.2337/db10-1805] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
OBJECTIVE Inflammation is an important factor in the development of insulin resistance, type 2 diabetes, and fatty liver disease. As a member of the tumor necrosis factor receptor superfamily (TNFRSF9) expressed on immune cells, 4-1BB/CD137 provides a bidirectional inflammatory signal through binding to its ligand 4-1BBL. Both 4-1BB and 4-1BBL have been shown to play an important role in the pathogenesis of various inflammatory diseases. RESEARCH DESIGN AND METHODS Eight-week-old male 4-1BB-deficient and wild-type (WT) mice were fed a high-fat diet (HFD) or a regular diet for 9 weeks. RESULTS We demonstrate that 4-1BB deficiency protects against HFD-induced obesity, glucose intolerance, and fatty liver disease. The 4-1BB-deficient mice fed an HFD showed less body weight gain, adiposity, adipose infiltration of macrophages/T cells, and tissue levels of inflammatory cytokines (e.g., TNF-α, interleukin-6, and monocyte chemoattractant protein-1 [MCP-1]) compared with HFD-fed control mice. HFD-induced glucose intolerance/insulin resistance and fatty liver were also markedly attenuated in the 4-1BB-deficient mice. CONCLUSIONS These findings suggest that 4-1BB and 4-1BBL may be useful therapeutic targets for combating obesity-induced inflammation and metabolic disorders.
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Affiliation(s)
- Chu-Sook Kim
- Department of Food Science and Nutrition, University of Ulsan, Ulsan, South Korea
| | - Jae Geun Kim
- Department of Biological Science, University of Ulsan, Ulsan, South Korea
| | - Byung-Ju Lee
- Department of Biological Science, University of Ulsan, Ulsan, South Korea
| | - Myung-Sook Choi
- Department of Food Science and Nutrition, Kyungpook National University, Daegu, South Korea
| | - Hye-Sun Choi
- Department of Biological Science, University of Ulsan, Ulsan, South Korea
| | - Teruo Kawada
- Graduate School of Agriculture, Kyoto University, Uji, Kyoto, Japan
| | - Ki-Up Lee
- Department of Internal Medicine, University of Ulsan College of Medicine, Seoul, South Korea
| | - Rina Yu
- Department of Food Science and Nutrition, University of Ulsan, Ulsan, South Korea
- Corresponding author: Rina Yu,
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19
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Dispensable role for 4-1BB and 4-1BBL in development of vaccinia virus-specific CD8 T cells. Immunol Lett 2011; 141:220-6. [PMID: 22037570 DOI: 10.1016/j.imlet.2011.10.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2011] [Revised: 09/30/2011] [Accepted: 10/16/2011] [Indexed: 12/18/2022]
Abstract
CD8 T cells are strongly induced in response to certain strains of vaccinia virus (VACV) and the generation of this population is tightly regulated by two Tumor Necrosis Factor (TNF)/TNFR superfamily members, OX40 (CD134) and CD27. In this study, we examined the role of another member of the TNFR superfamily, 4-1BB (CD137, TNFRSF9), and its ligand (4-1BBL, CD137L, TNFSF9), that have been described to control the generation of memory CD8 T cell populations elicited by other viruses such as influenza. Expression of 4-1BB and 4-1BBL was observed in wild-type mice during the primary infection, but we found that both 4-1BB and 4-1BBL deficient mice generated normal numbers of VACV-specific effector CD8 T cells that produced IFN-γ and TNF. Additionally, CD8 T cells deficient in 4-1BB were able to expand and persist comparably to wild-type T cells in response to VACV infection. Furthermore, the knockout mice also showed no defect in development of VACV-specific CD8 memory T cell populations. Lastly, showing alternate control mechanisms were not active in the gene-deficient environments that masked any activity, blocking 4-1BB/4-1BBL interactions using neutralizing antibody also had no effect on the number of VACV-specific memory CD8 T cells induced. Thus, our data demonstrate that 4-1BB and 4-1BBL do not play a strong or dominant role in driving the generation of high frequencies of VACV-specific CD8 T cells.
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20
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CD137 differentially regulates innate and adaptive immunity against Mycobacterium tuberculosis. Immunol Cell Biol 2011; 90:449-56. [PMID: 21747409 PMCID: PMC3330265 DOI: 10.1038/icb.2011.63] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Protective immunity against Mycobacterium tuberculosis is primarily mediated by the interaction of antigen-specific T cells and antigen presenting cells, which often depends on the interplay of cytokines produced by these cells. Costimulatory signals represent a complex network of receptor–ligand interactions that qualitatively and quantitatively influence immune responses. Thus, here we investigated the function of CD137 and CD137L, molecules known to have a central role in immune regulation, during human tuberculosis (TB). We demonstrated that M. tuberculosis antigen stimulation increased both CD137 and CD137L expression on monocytes and NK cells from TB patients and healthy donors, but only up-regulated CD137 on T lymphocytes. Blockage of the CD137 pathway enhanced the levels of interferon (IFN)-γ and tumor necrosis factor (TNF)-α produced by monocytes and NK against M. tuberculosis. In contrast, CD137 blockage significantly decreased the specific degranulation of CD8+ T cells and the percentage of specific IFN-γ and TNF-α producing lymphocytes against the pathogen. Furthermore, inhibition of the CD137 pathway markedly increased T-cell apoptosis. Taken together, our results demonstrate that CD137:CD137L interactions regulate the innate and adaptive immune response of the host against M. tuberculosis.
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21
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Zhang J, Chen G, Zhou D, Wang Z. Expression of CD137 in the cerebral artery after experimental subarachnoid hemorrhage in rats: a pilot study. Brain Res 2011; 1386:200-8. [PMID: 21352817 DOI: 10.1016/j.brainres.2011.02.049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2010] [Revised: 02/15/2011] [Accepted: 02/15/2011] [Indexed: 10/18/2022]
Abstract
Inflammation and immunity play a crucial role in the pathogenesis of cerebral vasospasm after subarachnoid hemorrhage (SAH). CD137 is recognized as an independent costimulatory molecule of T cells and activator of monocytes. A growing body of evidence indicates that CD137 is vital for inflammation and immunity. Therefore, this study aimed to investigate the expression of CD137 in the basilar artery in a rat SAH model and to clarify the potential role of CD137 in cerebral vasospasm. A total of 107 rats were randomly divided into four groups: control group; day 3, day 5, and day 7 groups. Day 3, day 5, and day 7 groups were all SAH groups. The animals in SAH groups were subjected to injection of autologous blood into cisterna magna twice on day 0 and day 2 and were sacrificed on days 3, 5, and 7, respectively. Cross-sectional area of basilar artery was measured and the CD137 expression was assessed by quantitative real-time PCR, Western blot and immunohistochemistry. The cross-sectional area of basilar artery was found to be 57,944±5581μm(2) in control group, 26,100±2639μm(2) in day 3, 19,723±2412μm(2) in day 5, and 28,800±2980μm(2) in day 7 group, respectively. The basilar artery exhibited vasospasm after SAH and became more severe on day 5. The elevated mRNA and protein of CD137 were detected after SAH and peaked on day 5. CD137 is increasingly expressed in a parallel time course to the development of cerebral vasospasm in a rat experimental model of SAH. These findings indicate the possible role of CD137 in the pathogenesis of cerebral vasospasm after SAH.
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Affiliation(s)
- Jian Zhang
- Department of Neurosurgery, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou 215006, Jiangsu Province, PR China
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22
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Salek-Ardakani S, Croft M. Tumor necrosis factor receptor/tumor necrosis factor family members in antiviral CD8 T-cell immunity. J Interferon Cytokine Res 2010; 30:205-18. [PMID: 20377415 DOI: 10.1089/jir.2010.0026] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
CD8 memory T cells can play a critical role in protection against repeated exposure to infectious agents such as viruses, yet can also contribute to the immunopathology associated with these pathogens. Understanding the mechanisms that control effective memory responses has important ramifications for vaccine design and in the management of adverse immune reactions. Recent studies have implicated several members of the tumor necrosis factor receptor (TNFR) family as key stimulatory and inhibitory molecules involved in the regulation of CD8 T cells. In this review, we discuss their control of the generation, persistence, and reactivation of CD8 T cells during virus infection.
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Affiliation(s)
- Shahram Salek-Ardakani
- Division of Molecular Immunology, La Jolla Institute for Allergy and Immunology, La Jolla, California 92037, USA.
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23
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Wang S, Chen L. Immunobiology of cancer therapies targeting CD137 and B7-H1/PD-1 cosignal pathways. Curr Top Microbiol Immunol 2010; 344:245-67. [PMID: 20582531 DOI: 10.1007/82_2010_81] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Cancer immunotherapy is finally entering a new era with manipulation of cosignaling pathways as a therapeutic approach, for which the principle was proved nearly two decades ago. In addition to CTLA-4, CD137 and B7-H1/PD-1 pathways are two new targets in the stage. CD137 pathway is costimulatory and its agonistic antibody delivers potent signal to drive T cell growth and activation. On the other hand, blockade of B7-H1/PD-1 pathway with antagonistic antibody has shown to protect ongoing T cell responses from impairment by immune evasion mechanism in cancer microenvironment. With these tools in hand, a mechanism-based design of combined immunotherapy with high efficacy is becoming a reality.
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Affiliation(s)
- Shengdian Wang
- Center for Infection and Immunity, Institute for Biophysics, Chinese Academy of Sciences, Beijing, China
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24
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Wang C, Lin GHY, McPherson AJ, Watts TH. Immune regulation by 4-1BB and 4-1BBL: complexities and challenges. Immunol Rev 2009; 229:192-215. [PMID: 19426223 DOI: 10.1111/j.1600-065x.2009.00765.x] [Citation(s) in RCA: 187] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
SUMMARY The tumor necrosis factor receptor family member 4-1BB plays a key role in the survival of activated and memory CD8(+) T cells. Depending on the disease model, 4-1BB can participate at different stages and influence different aspects of the immune response, likely due to the differential expression of receptor and ligand relative to other costimulatory molecules. Studies comparing mild versus severe influenza infection of mice suggest that the immune system uses inducible receptors such as 4-1BB to prolong the immune response when pathogens take longer to clear. The expression of 4-1BB on diverse cell types, evidence for bidirectional as well as receptor-independent signaling by 4-1BBL, the unexpected hyperproliferation of 4-1BB-deficient T cells, and complex effects of agonistic anti-4-1BB therapy have revealed additional roles for the 4-1BB/4-1BBL receptor/ligand pair in the immune system. In this review, we discuss these diverse roles of 4-1BB and its ligand in the immune response, exploring possible mechanisms for the observed complexities and implications for therapeutic applications of 4-1BB/4-1BBL.
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Affiliation(s)
- Chao Wang
- Department of Immunology, University of Toronto, Toronto, ON, Canada
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25
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26
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Abstract
The main stream of CD137 studies has been directed to the function of CD137 in CD8+ T-cell immunity, including its anti-tumor activity, and paradoxically the immunosuppressive activity of CD137, which proves to be of a great therapeutic potential for animal models of a variety of autoimmune and inflammatory diseases. Recent studies, however, add complexes to the biology of CD137. Accumulating is evidence supporting that there exists a bidirectional signal transduction pathway for the CD137 receptor and its ligand (CD137L). CD137/CD137L interactions are involved in the network of hematopoietic and nonhematopoietic cells in addition to the well characterized antigen-presenting cell-T cell interactions. Signaling through CD137L plays a critical role in the differentiation of myeloid cells and their cellular activities, suggesting that CD137L signals trigger and sustain inflammation. The overall consequence might be that the amplified inflammation by CD137L enhances the T-cell activity together with CD137 signals by upregulating costimulatory molecules, MHC molecules, cell adhesion molecules, cytokines, and chemokines. Solving this outstanding issue is urgent and will have an important clinical implication.
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Affiliation(s)
- Byungsuk Kwon
- School of Biological Sciences, University of Ulsan, Ulsan, Korea
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27
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Blockade of CD137 signaling counteracts polymicrobial sepsis induced by cecal ligation and puncture. Infect Immun 2009; 77:3932-8. [PMID: 19564374 DOI: 10.1128/iai.00407-09] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Sepsis, a leading cause of death worldwide, involves proinflammatory responses and inefficient bacterial clearance. Previously, we have shown that CD137 (4-1BB), a member of the tumor necrosis factor receptor superfamily, plays critical roles in eradicating infective Listeria monocytogenes, a gram-positive bacterium, and that stimulation of CD137 protects mice from sepsis-induced death. In this study, we unexpectedly found that CD137 activation aggravated polymicrobial sepsis due to mixed gram-positive and gram-negative bacterial infection induced by cecal ligation and puncture (CLP). CD137-deficient (CD137(-/-)) mice showed significantly lower mortality than CD137-sufficient (CD137(+/+)) mice in the CLP model. Administration of an agonistic anti-CD137 monoclonal antibody (MAb) to CD137(+/+) mice decreased their survival in this infection model, while administration of a blocking anti-CD137 ligand MAb (TKS-1) to such mice increased their survival. CD137(-/-) mice and TKS-1-treated CD137(+/+) mice had lower levels of chemokines/proinflammatory cytokines (monocyte chemoattractant protein 1, interleukin-6 [IL-6], tumor necrosis factor alpha, IL-12) and an anti-inflammatory cytokine (IL-10), exhibited improved bacterial clearance in the peritoneum, liver, and blood, and had greater numbers of infiltrated peritoneal neutrophils and macrophages in the CLP model than control mice. Our data suggest that CD137 activation aggravates polymicrobial sepsis induced by CLP.
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28
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Abstract
Interactions that occur between several tumour necrosis factor (TNF)-TNF receptors that are expressed by T cells and various other immune and non-immune cell types are central to T-cell function. In this Review, I discuss the biology of four different ligand-receptor interactions - OX40 ligand and OX40, 4-1BB ligand and 4-1BB, CD70 and CD27, and TL1A and death receptor 3 - and their potential to be exploited for therapeutic benefit. Manipulating these interactions can be effective for treating diseases in which T cells have an important role, including inflammatory conditions, autoimmunity and cancer. Here, I explore how blocking or inducing the signalling pathways that are triggered by these different interactions can be an effective way to modulate immune responses.
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Affiliation(s)
- Michael Croft
- Division of Molecular Immunology, La Jolla Institute for Allergy and Immunology, 9420 Athena Circle, La Jolla, California 92037, USA.
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29
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Shen L, Jin Y, Freeman GJ, Sharpe AH, Dana MR. The function of donor versus recipient programmed death-ligand 1 in corneal allograft survival. THE JOURNAL OF IMMUNOLOGY 2007; 179:3672-9. [PMID: 17785803 DOI: 10.4049/jimmunol.179.6.3672] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Programmed death-ligand (PD-L)1 and PD-L2, newer B7 superfamily members, are implicated in the negative regulation of immune responses and peripheral tolerance. To examine their function in alloimmunity, we used the murine model of orthotopic corneal transplantation. We demonstrate that PD-L1, but not PD-L2, is constitutively expressed at high levels by the corneal epithelial cells, and at low levels by corneal CD45+ cells in the stroma, whereas it is undetectable on stromal fibroblasts and corneal endothelial cells. Inflammation induces PD-L1 up-regulation by corneal epithelial cells, and infiltration of significant numbers of PD-L1+CD45+CD11b+ cells. Blockade with anti-PD-L1 mAb dramatically enhances rejection of C57BL/6 corneal allografts by BALB/c recipients. To examine the selective contribution of donor vs host PD-L1 in modulating allorejection, we used PD-L1-/- mice as hosts or donors of combined MHC and minor H-mismatched corneal grafts. BALB/c grafts placed in PD-L1-/- C57BL/6 hosts resulted in pronounced T cell priming in the draining lymph nodes, and universally underwent rapid rejection. Allografts from PD-L1-/- C57BL/6 donors were also significantly more susceptible to rejection than wild-type C57BL/6 grafts placed into BALB/c hosts, primarily as a result of increased T cell infiltration rather than enhanced priming. Taken together, our results identify differential roles for recipient vs donor PD-L1 in regulating induction vs effector of alloimmunity in corneal grafts, the most common form of tissue transplantation, and highlight the importance of peripheral tissue-derived PD-L1 in down-regulating local immune responses.
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Affiliation(s)
- Linling Shen
- Schepens Eye Research Institute and Massachusetts Eye and Ear Infirmary, Department of Ophthalmology, Harvard Medical School, Boston, MA 02114, USA
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30
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Carr DJJ, Tomanek L. Herpes simplex virus and the chemokines that mediate the inflammation. Curr Top Microbiol Immunol 2007; 303:47-65. [PMID: 16570856 PMCID: PMC4076168 DOI: 10.1007/978-3-540-33397-5_3] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Herpes simplex viruses (HSV) are highly pervasive pathogens in the human host with a seroconversion rate upwards of 60% worldwide. HSV type 1 (HSV-1) is associated with the disease herpetic stromal keratitis, the leading cause of infectious corneal blindness in the industrialized world. Individuals suffering from genital herpes associated with HSV type 2 (HSV-2) are found to be two- to threefold more susceptible in acquiring human immunodeficiency virus (HIV). The morbidity associated with these infections is principally due to the inflammatory response, the development of lesions, and scarring. Chemokines have become an important aspect in understanding the host immune response to microbial pathogens due in part to the timing of expression. In this paper, we will explore the current understanding of chemokine production as it relates to the orchestration of the immune response to HSV infection.
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Affiliation(s)
- D J J Carr
- Department of Ophthalmology, University of Oklahoma, DMEI 415, Health Sciences Center, 608 Stanton L. Young Blvd., Oklahoma City, OK 73104, USA.
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31
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Fuse S, Bellfy S, Yagita H, Usherwood EJ. CD8+ T cell dysfunction and increase in murine gammaherpesvirus latent viral burden in the absence of 4-1BB ligand. THE JOURNAL OF IMMUNOLOGY 2007; 178:5227-36. [PMID: 17404306 PMCID: PMC4402709 DOI: 10.4049/jimmunol.178.8.5227] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Studies of costimulatory receptors belonging to the TNFR family have revealed their diverse roles in affecting different stages of the T cell response. The 4-1BB ligand (4-1BBL)/4-1BB pathway has emerged as a receptor-ligand pair that impacts not the initial priming, but later phases of the T cell response, such as sustaining clonal expansion and survival, maintaining memory CD8(+) T cells, and supporting secondary expansion upon Ag challenge. Although the role of this costimulatory pathway in CD8(+) T cell responses to acute viral infections has been well-studied, its role in controlling chronic viral infections in vivo is not known to date. Using the murine gammaherpesvirus-68 (MHV-68) model, we show that 4-1BBL-deficient mice lack control of MHV-68 during latency and show significantly increased latent viral loads. In contrast to acute influenza infection, the numbers of MHV-68-specific memory CD8(+) T cells were maintained during latency. However, the virus-specific CD8(+) T cells showed defects in function, including decreased cytolytic function and impaired secondary expansion. Thus, 4-1BBL deficiency significantly affects the function, but not the number, of virus-specific CD8(+) T cells during gammaherpesvirus latency, and its absence results in an increased viral burden. Our study suggests that the 4-1BB costimulatory pathway plays an important role in controlling chronic viral infections.
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Affiliation(s)
- Shinichiro Fuse
- Department of Microbiology and Immunology, Dartmouth Medical School, Lebanon, NH 03756
| | - Sarah Bellfy
- Department of Microbiology and Immunology, Dartmouth Medical School, Lebanon, NH 03756
| | - Hideo Yagita
- Department of Immunology, Juntendo University School of Medicine, Tokyo, Japan
| | - Edward J. Usherwood
- Department of Microbiology and Immunology, Dartmouth Medical School, Lebanon, NH 03756
- Address correspondence and reprint requests to Dr. Edward J. Usherwood, Department of Microbiology and Immunology, Dartmouth Medical School, 1 Medical Center Drive, Lebanon, NH 03756.
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32
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Osorio Y, Mott KR, Jabbar AM, Moreno A, Foster TP, Kousoulas KG, Ghiasi H. Epitope mapping of HSV-1 glycoprotein K (gK) reveals a T cell epitope located within the signal domain of gK. Virus Res 2007; 128:71-80. [PMID: 17499382 PMCID: PMC2020453 DOI: 10.1016/j.virusres.2007.04.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2007] [Revised: 04/03/2007] [Accepted: 04/05/2007] [Indexed: 12/18/2022]
Abstract
Glycoprotein K (gK) is a virion envelope component of herpes simplex virus types 1 (HSV-1) and 2 (HSV-2), which plays an important role in virion morphogenesis and egress. We previously demonstrated that immunization of mice with gK, but not with any of the 10 other HSV-1 glycoproteins, resulted in exacerbation of corneal scarring and herpetic dermatitis following ocular HSV-1 infection. However, little is known about the gK epitope(s) that is (are) involved in T cell activities in vitro or in vivo. Thus, epitope mapping of gK was performed using a panel of 15-mer peptides with five-amino acid overlaps spanning the full-length gK, and four expressed gK recombinant proteins representing different regions of gK. Epitope mapping within the gK polypeptide defined the amino acid sequence STVVLITAYGLVLVW as the predominant CD4(+) and CD8(+) T cell stimulatory region both in vitro and in vivo. IFN-gamma expression by CD4(+) T cells was CD8(+) T cells-dependent. This immunodominant epitope is located within the signal sequence of the gK polypeptide and is highly conserved in HSV-1 and HSV-2 strains. Using prediction algorithms, the peptide is predicted to bind to numerous MHC class I and class II molecules.
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Affiliation(s)
- Yanira Osorio
- Center for Neurobiology and Vaccine Development, Ophthalmology Research, Cedars-Sinai Medical Center Burns and Allen Research Institute, Los Angeles, CA 90048, USA
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33
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McGee HS, Agrawal DK. TH2 cells in the pathogenesis of airway remodeling: regulatory T cells a plausible panacea for asthma. Immunol Res 2007; 35:219-32. [PMID: 17172648 DOI: 10.1385/ir:35:3:219] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/1999] [Revised: 11/30/1999] [Accepted: 11/30/1999] [Indexed: 01/01/2023]
Abstract
T-helper type 2 (TH2) cells are one of the hallmarks of airway remodeling. The daunting task of regaining tolerance will be to regulate airway hyperresponsiveness (AHR) and remodeling in chronic asthma by balancing the ballet of TH1 and TH2 cells. The mechanism of tolerance appears to be modulated by a specialized subset of T cells called regulatory T cells (Tregs). Currently there are six subtypes of Tregs including CD4+CD25+ naturally occurring (N-Tregs), inducible naïve CD4+CD25- T cells (TR1), TR1 memory phenotype, T-helper type 3 (TH3), CD4-CD25+DX5+ natural killer T cells (TRNKT), and CD4-CD25+CD8+ cytotoxic T cells (TRCTC). The development of Tregs is controversial as to whether they occur in the thymus or peripheral lymphoid tissue. Studies have shown that NTregs are generated in the thymus and TR1 cells occur in the periphery. Nevertheless, Tregs express an arsenal of molecular membrane markers: CD3, CD25, CD62L, CD69, BTLA, GITR, ICOS, Neuroplin- 1 (Nrp-1), and PD-1. However, the most definitive marker is Forkhead Winged-Helix Transcriptional Factor Box p3 (Foxp3). The suppression of N-Tregs occurs by cell-to-cell contact, and low levels of IL-10 and moderate levels of TGF-beta, but the primary mechanism involves the sequestration and activation of neighboring naïve CD4+CD25- T cells to become TR1 cells. In contrast, TR1 cells exert their suppressive properties by copious secretion of IL-10 and TGF- beta. These suppressive mechanisms occur by the inhibition of IL-2 production and the promotion of cell cycle arrest. The development of this specialized subset of T cells is an enigma, but their understanding will provide a plausible panacea for asthma.
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Affiliation(s)
- Halvor S McGee
- Department of Biomedical Sciences, Creighton University School of Medicine, Omaha, NE 68178, USA.
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34
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Lepisto AJ, Xu M, Yagita H, Weinberg AD, Hendricks RL. Expression and function of the OX40/OX40L costimulatory pair during herpes stromal keratitis. J Leukoc Biol 2006; 81:766-74. [PMID: 17185358 DOI: 10.1189/jlb.0406293] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Herpes stromal keratitis (HSK) is an immunopathological disease regulated by Th1 CD4 T cells, which require APC and costimulation within the infected cornea to mediate disease. Recent studies suggest the OX40:OX40 ligand (OX40L) interaction enhances effector cell cytokine secretion at inflammatory sites. OX40(+) cells were detected in HSV-1-infected mouse corneas as early as 3 days postinfection (dpi), prior to the onset of HSK, and their frequency increased through 15 dpi, when all mice exhibited severe HSK. OX40L(+) cells were first detected at 7 dpi, coincident with the initiation of HSK. It is interesting that the OX40L(+) cells did not coexpress MHC Class II or the dendritic cell (DC) marker CD11c. Our findings demonstrate rapid infiltration of activated (OX40(+)) CD4(+) T cells into HSV-1-infected corneas and expression of OX40L on MHC Class II-negative cells but surprisingly, not on MHC Class II(+) CD11c(+) DC, which are present in the infected corneas and required for HSK. Moreover, neither local nor systemic treatment of mice with a blocking antibody to OX40L or with a blocking fusion protein altered the course of HSK significantly, possibly as a result of a lack of OX40L expression on functional APC.
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MESH Headings
- Animals
- Antibodies/pharmacology
- Cornea/immunology
- Cornea/pathology
- Cornea/virology
- Female
- Gene Expression Profiling
- Herpesvirus 1, Human/immunology
- Inflammation
- Keratitis, Herpetic/immunology
- Keratitis, Herpetic/virology
- Membrane Glycoproteins/drug effects
- Membrane Glycoproteins/genetics
- Membrane Glycoproteins/physiology
- Mice
- Mice, Inbred BALB C
- OX40 Ligand
- RNA, Messenger/drug effects
- RNA, Messenger/genetics
- RNA, Messenger/immunology
- Receptors, OX40/biosynthesis
- Receptors, OX40/drug effects
- Receptors, OX40/physiology
- Reverse Transcriptase Polymerase Chain Reaction/methods
- Tumor Necrosis Factors/genetics
- Tumor Necrosis Factors/physiology
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Affiliation(s)
- Andrew J Lepisto
- Department of Ophthalmology, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA
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35
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Liu GZ, Gomes AC, Putheti P, Karrenbauer V, Kostulas K, Press R, Hillert J, Hjelmström P, Gao XG. Increased Soluble 4-1BB Ligand (4-1BBL) Levels in Peripheral Blood of Patients with Multiple Sclerosis. Scand J Immunol 2006; 64:412-9. [PMID: 16970683 DOI: 10.1111/j.1365-3083.2006.01796.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
4-1BB ligand (4-1BBL; CD137L) is a member of the tumour necrosis factor superfamily expressed primarily on antigen presenting cells such as B cells, macrophages and dendritic cells. Its engagement with the receptor 4-1BB (CD137) has been shown to promote T-cell activation and regulate proliferation and survival of T cells. The role of the costimulatory molecule in multiple sclerosis (MS) remains unclear. In this study, the expression of 4-1BBL and soluble 4-1BBL (s4-1BBL) protein levels were analysed in peripheral blood of MS patients. Compared with healthy controls, MS patients had an increase in both plasma s4-1BBL protein levels and expression of 4-1BBL in CD14(+) monocytes. In contrast, myelin basic protein-reactive T-cell proliferation was not found to be inhibited by the use of an anti-4-1BBL antibody. The elevated s4-1BBL protein levels in the MS patients may function as a self-regulatory mechanism of 4-1BB/4-1BBL interaction and costimulation.
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Affiliation(s)
- G-Z Liu
- Department of Neurology, Peking University People's Hospital, Beijing, China.
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36
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Cho YS, Kwon B, Lee TH, Kim TB, Moon KA, La S, Lee J, Lee SD, Oh YM, Moon HB. 4-1 BB stimulation inhibits allergen-specific immunoglobulin E production and airway hyper-reactivity but partially suppresses bronchial eosinophilic inflammation in a mouse asthma model. Clin Exp Allergy 2006; 36:377-85. [PMID: 16499650 DOI: 10.1111/j.1365-2222.2006.02445.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND 4-1 BB, a member of the tumour necrosis factor receptor superfamily, functions as a co-stimulatory molecule. Recently, stimulation of the 4-1 BB pathway was shown to suppress antigen-specific CD4(+) T cell and subsequent T cell-dependent humoral immune responses. OBJECTIVE We examined the effect of agonistic anti-4-1 BB monoclonal antibody (mAb) treatment on allergic asthma, in which allergen-specific type 2 helper T cells (Th2) have been shown to play an important role. METHODS BALB/c mice were systemically sensitized with intraperitoneal injections of ovalbumin (OVA) and alum on days 0 and 14, and then challenged with inhaled OVA on days 28, 29 and 30. In test groups, the agonistic anti-4-1 BB mAb was administered at the time of initial systemic sensitization with OVA. On day 31, mice were challenged with inhaled methacholine, and enhanced pause was measured as an index of airway hyper-responsiveness (AHR). Levels of OVA-specific IgE in serum, and levels of various cytokines in bronchoalveolar lavage (BAL) fluids were measured. The severity of airway inflammation was determined by differential cell counts in BAL fluids and histopathologic lung analysis. To evaluate local immunity, we cultured lymphocytes from draining perihilar lymph nodes and evaluated the proliferative response to OVA and the levels of IL-5 in the culture supernatant. In addition, the functional mechanism of 4-1 BB stimulation was evaluated in splenocytes obtained at day 7 after systemic OVA sensitization. RESULTS We found that treatment with the anti-4-1 BB mAb significantly decreased AHR and the production of allergen-specific IgE. Bronchial inflammation, however, had only partially improved and the levels of IL-4 and IL-5 in BAL fluids showed only a small degree of reduction compared with the control Ig-treated mice. Thoracic lymphocytes from anti-4-1 BB-treated mice showed significant suppression of OVA-induced proliferation and IL-5 production. In anti-4-1 BB-treated mice, splenocytes exhibited poor proliferation and marked apoptosis 7 days after systemic OVA challenge. CONCLUSION These results suggest that stimulation of the 4-1 BB pathway effectively suppresses some features of allergic asthma, including allergen-specific IgE production and AHR, through deletion of allergen-specific Th2 cells. However, we found that bronchial allergic inflammation was not strictly mediated by suppression of the Th2 immune response in this murine model of asthma. Despite these somewhat contradictory effects, intervention in the 4-1 BB pathway might provide a potential novel immunotherapeutic approach for treatment of allergic asthma.
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Affiliation(s)
- Y S Cho
- Department of Medicine, Division of Allergy and Clinical Immunology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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37
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Abstract
T-cell activation in the absence of costimulation is futile because T-cells deprived of costimulatory signals enter a state of unresponsiveness or anergy. The interaction of 4-1BB and 4-1BB ligand (4-1BBL) activates an important costimulatory pathway with diverse and important roles in immune regulation. Signals relayed through 4-1BB generate strong CD8(+) T-cell responses rather than CD4(+) T-cell responses; this action results in cytokine induction and promotes T-cell survival. In recent years, 4-1BB-mediated immune regulation has gained great significance because of the seemingly contradictory dual roles of agonistic anti-4-1BB in vivo disease models. To date, agonistic 4-1BB monoclonal antibody has shown therapeutic potential against a variety of tumors, CD4(+) T-cell-mediated autoimmune diseases, and chronic graft-versus-host disease. In addition, blockade of 4-1BB/4-1BBL interaction has produced therapeutic effects against coxsackievirus-induced myocardial inflammation, herpetic stromal keratitis, and graft rejection. We propose that the dual roles of agonistic anti-4-1BB--an enhanced effector function and a suppressor function--are mediated by a novel CD11c(+)CD8(+) T-cell population.
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Affiliation(s)
- Dass S Vinay
- Department of Ophthalmology, LSU Eye Center, Louisiana State University Health Sciences Center School of Medicine, New Orleans, USA
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38
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Jun H, Seo SK, Jeong HY, Seo HM, Zhu G, Chen L, Choi IH. B7-H1 (CD274) inhibits the development of herpetic stromal keratitis (HSK). FEBS Lett 2005; 579:6259-64. [PMID: 16253242 DOI: 10.1016/j.febslet.2005.09.098] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2005] [Revised: 09/30/2005] [Accepted: 09/30/2005] [Indexed: 01/22/2023]
Abstract
The co-signaling molecule B7-H1 (CD274) functions as both a co-inhibitor through programmed death-1 (PD-1) receptor and a co-stimulator via an as-yet-unidentified receptor on T cells. We investigated the physiological role of endogenous B7-H1 in the pathogenesis of herpetic stromal keratitis (HSK) caused by herpes simplex virus type 1 (HSV-1). Following HSV-1 infection of the cornea of mice, B7-H1 expression was up-regulated in the CD11b+ macrophage population in the draining lymph nodes (dLN) and in the inflamed cornea. In addition, HSV-1 infection significantly increased PD-1 expression on CD4+ T cells in the dLN and inflamed cornea. The administration of antagonistic B7-H1 monoclonal antibody resulted in the proliferation of HSV-specific CD4+ T cells that secreted interferon (INF)-gamma, and inhibited the apoptosis of HSV-specific CD4+ T cells, which exaggerated HSK. These results strongly suggest that the B7-H1 may be involved in suppression of the development of HSK.
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Affiliation(s)
- Her Jun
- Department of Ophthalmology, Inje University College of Medicine, Busan 614-735, Republic of Korea
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39
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Abstract
Several members of the tumor necrosis factor receptor (TNFR) family function after initial T cell activation to sustain T cell responses. This review focuses on CD27, 4-1BB (CD137), OX40 (CD134), HVEM, CD30, and GITR, all of which can have costimulatory effects on T cells. The effects of these costimulatory TNFR family members can often be functionally, temporally, or spatially segregated from those of CD28 and from each other. The sequential and transient regulation of T cell activation/survival signals by different costimulators may function to allow longevity of the response while maintaining tight control of T cell survival. Depending on the disease condition, stimulation via costimulatory TNF family members can exacerbate or ameliorate disease. Despite these complexities, stimulation or blockade of TNFR family costimulators shows promise for several therapeutic applications, including cancer, infectious disease, transplantation, and autoimmunity.
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Affiliation(s)
- Tania H Watts
- Department of Immunology, University of Toronto, Toronto, Ontario, M5S 1A8, Canada.
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40
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Abstract
Herpes stromal keratitis (HSK) is a significant inflammatory disease of the cornea as a result of herpes simplex virus (HSV) infection often progressing to vision loss if left untreated. However, even with immunosuppressive compounds and anti-viral drug treatment, HSV continues to be the leading cause of infectious corneal blindness in the industrialized world. The inflammatory nature of the disease is the root of the pathogenic process characterized by irreversible corneal scarring, neovascularization of the avascular cornea, and infiltration of activated leukocytes. Experimental evidence using mice suggest HSK is the result of either molecular mimicry or a bystander activation phenomenon. This review will revisit the basis of HSK focusing on issues that pertain to the autoimmune component versus collateral damage as a result of non-specific activation as a means to explain the pathologic manifestations of the disease.
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Affiliation(s)
- S Wickham
- Department of Ophthalmology, Microbiology, and Immunology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
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41
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Abstract
Members of both the CD28 and TNFR families can have costimulatory roles in T cell activation. Gene targeted mice as well as in vivo blocking experiments have established distinct roles for CD28/B7; ICOS/ICOSL; CD27/CD70; 4-1BB/4-1BBL and OX40/OX40L during viral infection. Many issues remain to be addressed, including the timing and location of the interactions, the possibility of partial redundancy between related family members and the molecular basis for the specific phenotypes observed in the different gene targeted mice.
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Affiliation(s)
- Edward M Bertram
- Australian Phenomics Facility and Division of Immunology and Genetics, John Curtin School of Medical Research, Australian National University, Canberra, Australia 2601
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42
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Dawicki W, Bertram EM, Sharpe AH, Watts TH. 4-1BB and OX40 Act Independently to Facilitate Robust CD8 and CD4 Recall Responses. THE JOURNAL OF IMMUNOLOGY 2004; 173:5944-51. [PMID: 15528328 DOI: 10.4049/jimmunol.173.10.5944] [Citation(s) in RCA: 125] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Mice deficient in OX40 or 4-1BB costimulatory pathways show defects in T cell recall responses, with predominant effects on CD4 vs CD8 T cells, respectively. However, OX40L can also stimulate CD8 T cells and 4-1BBL can influence CD4 T cells, raising the possibility of redundancy between the two TNFR family costimulators. To test this possibility, we generated mice deficient in both 4-1BBL and OX40L. In an adoptive transfer model, CD4 T cells expressed 4-1BB and OX40 sequentially in response to immunization, with little or no overlap in the timing of their expression. Under the same conditions, CD8 T cells expressed 4-1BB, but no detectable OX40. Thus, in vivo expression of 4-1BB and OX40 can be temporally and spatially segregated. In the absence of OX40L, there were decreased CD4 T cells late in the primary response and no detectable secondary expansion of adoptively transferred CD4 T cells under conditions in which primary expansion was unaffected. The 4-1BBL had a minor effect on the primary response of CD4 T cells in this model, but showed larger effects on the secondary response, although 4-1BBL(-/-) mice show less impairment in CD4 secondary responses than OX40L(-/-) mice. The 4-1BBL(-/-) and double knockout mice were similarly impaired in the CD8 T cell response, whereas OX40L(-/-) and double knockout mice were similarly impaired in the CD4 T cell response to both protein Ag and influenza virus. Thus, 4-1BB and OX40 act independently and nonredundantly to facilitate robust CD4 and CD8 recall responses.
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MESH Headings
- 4-1BB Ligand
- Adoptive Transfer/methods
- Animals
- Antigens, CD
- CD4-Positive T-Lymphocytes/immunology
- CD4-Positive T-Lymphocytes/microbiology
- CD4-Positive T-Lymphocytes/transplantation
- CD4-Positive T-Lymphocytes/virology
- CD8-Positive T-Lymphocytes/immunology
- CD8-Positive T-Lymphocytes/microbiology
- CD8-Positive T-Lymphocytes/transplantation
- CD8-Positive T-Lymphocytes/virology
- Cell Proliferation
- Enterotoxins/administration & dosage
- Enterotoxins/immunology
- Epitopes, T-Lymphocyte/immunology
- Immunization, Secondary/methods
- Immunologic Memory/genetics
- Influenza A virus/immunology
- Ligands
- Lymphocyte Activation/genetics
- Membrane Glycoproteins/deficiency
- Membrane Glycoproteins/genetics
- Membrane Glycoproteins/metabolism
- Membrane Glycoproteins/physiology
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Mice, Transgenic
- OX40 Ligand
- Receptors, Nerve Growth Factor/biosynthesis
- Receptors, Nerve Growth Factor/physiology
- Receptors, OX40
- Receptors, Tumor Necrosis Factor/biosynthesis
- Receptors, Tumor Necrosis Factor/physiology
- Superantigens/administration & dosage
- Superantigens/immunology
- Tumor Necrosis Factor Receptor Superfamily, Member 9
- Tumor Necrosis Factor-alpha/deficiency
- Tumor Necrosis Factor-alpha/genetics
- Tumor Necrosis Factor-alpha/metabolism
- Tumor Necrosis Factor-alpha/physiology
- Tumor Necrosis Factors
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Affiliation(s)
- Wojciech Dawicki
- Department of Immunology, University of Toronto, 1 King's College Circle, Toronto, Ontario, Canada
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43
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Cho HR, Kwon B, Yagita H, La S, Lee EA, Kim JE, Akiba H, Kim J, Suh JH, Vinay DS, Ju SA, Kim BS, Mittler RS, Okumura K, Kwon BS. Blockade of 4-1BB (CD137)/4-1BB ligand interactions increases allograft survival. Transpl Int 2004. [DOI: 10.1111/j.1432-2277.2004.tb00454.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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