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Pool ES, Kooy-Winkelaar Y, van Unen V, Falkenburg JF, Koning F, Heemskerk MHM, Tjon JML. Mass cytometric analysis unveils a disease-specific immune cell network in the bone marrow in acquired aplastic anemia. Front Immunol 2023; 14:1274116. [PMID: 38094307 PMCID: PMC10716190 DOI: 10.3389/fimmu.2023.1274116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 11/14/2023] [Indexed: 12/18/2023] Open
Abstract
Idiopathic acquired aplastic anemia (AA) is considered an immune-mediated syndrome of bone marrow failure since approximately 70% of patients respond to immunosuppressive therapy (IST) consisting of a course of anti-thymocyte globulin (ATG) followed by long-term use of ciclosporin. However, the immune response that underlies the pathogenesis of AA remains poorly understood. In this study, we applied high-dimensional mass cytometry on bone marrow aspirates of AA patients pre-ATG, AA patients post-ATG and healthy donors to decipher which immune cells may be implicated in the pathogenesis of AA. We show that the bone marrow of AA patients features an immune cell composition distinct from healthy donors, with significant differences in the myeloid, B-cell, CD4+ and CD8+ T-cells lineages. Specifically, we discovered that AA pre-ATG is characterized by a disease-specific immune cell network with high frequencies of CD16+ myeloid cells, CCR6++ B-cells, Th17-like CCR6+ memory CD4+ T-cells, CD45RA+CCR7+CD38+ CD8+ T-cells and KLRG1+ terminally differentiated effector memory (EMRA) CD8+ T-cells, compatible with a state of chronic inflammation. Successful treatment with IST strongly reduced the levels of CD16+ myeloid cells and showed a trend toward normalization of the frequencies of CCR6++ B-cells, CCR6+ memory CD4+ T-cells and KLRG1+EMRA CD8+ T-cells. Altogether, our study provides a unique overview of the immune landscape in bone marrow in AA at a single-cell level and proposes CCR6 as a potential new therapeutic target in AA.
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Affiliation(s)
- Emma S. Pool
- Department of Hematology, Leiden University Medical Center, Leiden, Netherlands
| | | | - Vincent van Unen
- Department of Immunology, Leiden University Medical Center, Leiden, Netherlands
- Institute for Immunity, Transplantation, and Infection, Stanford University School of Medicine, Stanford, CA, United States
| | | | - Frits Koning
- Department of Immunology, Leiden University Medical Center, Leiden, Netherlands
| | | | - Jennifer M-L. Tjon
- Department of Hematology, Leiden University Medical Center, Leiden, Netherlands
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2
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Fahimi F, Alam MJ, Ang C, Adhyatma GP, Xie L, Mackay CR, Robert R. Human CXCR1 knock-in mice infer functional expression of a murine ortholog. J Leukoc Biol 2023; 114:373-380. [PMID: 37478375 DOI: 10.1093/jleuko/qiad085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 06/05/2023] [Accepted: 06/26/2023] [Indexed: 07/23/2023] Open
Abstract
Targeting CXCR1 and CXCR2 chemokine receptors to block neutrophil migration to sites of inflammation is a promising therapeutic approach for various inflammatory and autoimmune diseases. However, assessing the translational potential of such therapies using mouse models is challenging due to the unclear expression of CXCR1 at the protein level. Although CXCR2 has been well characterized in both mice and humans, the protein-level expression of CXCR1 in mice (mCXCR1) remains controversial. To address this issue, we generated a novel human CXCR1 knock-in (hCXCR1 KI) mouse model in which the transgene is under the control of the native mouse promoter and regulatory elements. Using an anti-human CXCR1 monoclonal antibody (anti-hCXCR1 monoclonal antibody), we found that hCXCR1 was highly expressed on neutrophils in the hCXCR1 KI mice, comparable to levels observed in human neutrophils. This successful expression of hCXCR1 in this mouse model suggests that functional mCXCR1 likely exists. To investigate the functional role of CXCR1, we investigated how antagonizing this receptor using anti-hCXCR1 monoclonal antibody in the arthritis model would affect disease outcomes. Antibody treatment significantly alleviated all signs of joint inflammation. In summary, our newly generated hCXCR1 KI transgenic mice provide a valuable tool to investigate the therapeutic efficacy of small molecules or monoclonal antibodies that antagonize this receptor in neutrophil-mediated pathologies.
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Affiliation(s)
- Farnaz Fahimi
- Department of Physiology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria 3800, Australia
| | - Md Jahangir Alam
- Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria 3800, Australia
| | - Caroline Ang
- Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria 3800, Australia
| | - Galih Prakasa Adhyatma
- Department of Physiology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria 3800, Australia
| | - Liang Xie
- Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria 3800, Australia
| | - Charles R Mackay
- Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria 3800, Australia
| | - Remy Robert
- Department of Physiology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria 3800, Australia
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3
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Asano T, Tanaka T, Suzuki H, Li G, Nanamiya R, Tateyama N, Isoda Y, Okada Y, Kobayashi H, Yoshikawa T, Kaneko MK, Kato Y. Development of a Novel Anti-Mouse CCR6 Monoclonal Antibody (C 6Mab-13) by N-Terminal Peptide Immunization. Monoclon Antib Immunodiagn Immunother 2022; 41:343-349. [PMID: 36383115 DOI: 10.1089/mab.2022.0021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The CC chemokine receptor 6 (CCR6) is a G protein-coupled receptor family member that is highly expressed in B lymphocytes, certain subsets of effector and memory T cells, and immature dendritic cells. CCR6 has only one chemokine ligand, CCL20. The CCL20-CCR6 axis has been recognized as a therapeutic target for autoimmune diseases and tumor. This study developed specific monoclonal antibodies (mAbs) against mouse CCR6 (mCCR6) using the peptide immunization method. The established anti-mCCR6 mAb, C6Mab-13 (rat IgG1, kappa), reacted with mCCR6-overexpressed Chinese hamster ovary-K1 (CHO/mCCR6), and mCCR6-endogenously expressed P388 (mouse lymphoid neoplasma) and J774-1 (mouse macrophage-like) cells in flow cytometry. The dissociation constant (KD) of C6Mab-13 for CHO/mCCR6 cells was determined to be 2.8 × 10-9 M, indicating that C6Mab-13 binds to mCCR6 with high affinity. In summary, C6Mab-13 is useful for detecting mCCR6-expressing cells through flow cytometry.
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Affiliation(s)
- Teizo Asano
- Department of Antibody Drug Development, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Tomohiro Tanaka
- Department of Antibody Drug Development, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Hiroyuki Suzuki
- Department of Molecular Pharmacology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Guanjie Li
- Department of Molecular Pharmacology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Ren Nanamiya
- Department of Antibody Drug Development, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Nami Tateyama
- Department of Antibody Drug Development, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Yu Isoda
- Department of Antibody Drug Development, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Yuki Okada
- Department of Molecular Pharmacology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Hiyori Kobayashi
- Department of Molecular Pharmacology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Takeo Yoshikawa
- Department of Pharmacology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Mika K Kaneko
- Department of Antibody Drug Development, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
| | - Yukinari Kato
- Department of Antibody Drug Development, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan.,Department of Molecular Pharmacology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan.,Department of Pharmacology, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan
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4
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Meitei HT, Jadhav N, Lal G. CCR6-CCL20 axis as a therapeutic target for autoimmune diseases. Autoimmun Rev 2021; 20:102846. [PMID: 33971346 DOI: 10.1016/j.autrev.2021.102846] [Citation(s) in RCA: 87] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Revised: 03/15/2021] [Accepted: 03/23/2021] [Indexed: 12/11/2022]
Abstract
Chemokine receptor CCR6 is expressed on various cells such as B cells, immature dendritic cells, innate lymphoid cells (ILCs), regulatory CD4 T cells, and Th17 cells. CCL20 is the only known high-affinity ligand that binds to CCR6 and drives CCR6+ cells' migration in tissues. CCL20 is mainly produced by epithelial cells, and its expression is increased by several folds under inflammatory conditions. Genome-wide association studies (GWAS) in patients with inflammatory bowel disease (IBD), psoriasis (PS), rheumatoid arthritis (RA), and multiple sclerosis (MS) showed a very strong correlation between the expression of CCR6 and disease severity. It has been shown that disruption of CCR6-CCL20 interaction by using antibodies or antagonists prevents the migration of CCR6 expressing immune cells at the site of inflammation and reduces the severity of the disease. This review discussed the importance of the CCR6-CCL20 axis in IBD, PS, RA, and MS, and recent advances in targeting the CCR6-CCL20 in controlling these autoimmune diseases.
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Affiliation(s)
| | - Nandadeep Jadhav
- National Centre for Cell Science, Ganeshkhind, Pune MH-411007, India
| | - Girdhari Lal
- National Centre for Cell Science, Ganeshkhind, Pune MH-411007, India.
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5
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Designing a new bispecific tandem single-chain variable fragment antibody against tumor necrosis factor-α and interleukin-23 using in silico studies for the treatment of rheumatoid arthritis. J Mol Model 2020; 26:225. [PMID: 32778954 DOI: 10.1007/s00894-020-04510-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 08/05/2020] [Indexed: 10/23/2022]
Abstract
Rheumatoid arthritis disease is a chronic auto-immune inflammatory disease that mainly causes synovial joint inflammation and cartilage destruction. The tumor necrosis factor-α (TNF-α) is a pivotal cytokine that plays an important role in rheumatoid arthritis. The treatments focusing on a single cytokine inhibition are clinically able to produce meaningful responses in only about half of the treated patients due to multiple cytokines involved in this disease. In the present study, a bispecific tandem single-chain variable fragment was designed in order to suppress both human tumor necrosis factor-α and interleukin-23 (IL23) as a potential therapeutic drug candidate for this disease. To do so, at first, eight bispecific tandem single-chain variable fragment models were built against tumor necrosis factor-α and interleukin-23 cytokines with different domain orders by the homology modeling, and then 50 ns molecular dynamics simulation was performed for each one and then structural properties were exploited. The MD simulation results indicate the fact that the domains' order strongly affects tandem single-chain variable fragment properties, and in overall, the fragment VLAIL23+Linker+VHAIL23+linker+VLATNF+Linker +VHATNF +His6 (VL and VH are light and heavy chain variable fragments and AIL23 and ATNF are anti-interleukin 23 and anti-tumor necrosis factor-α, respectively, and His6 is the six histidine) not only separated antibody domains accurately but also had better stability and solvation free energy. Therefore, this structure can be considered as an effective potential drug for rheumatoid arthritis. It is expected that the findings of this research could shed a light on the treatment approaches of the rheumatoid arthritis disease.
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6
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Kadomoto S, Izumi K, Mizokami A. The CCL20-CCR6 Axis in Cancer Progression. Int J Mol Sci 2020; 21:ijms21155186. [PMID: 32707869 PMCID: PMC7432448 DOI: 10.3390/ijms21155186] [Citation(s) in RCA: 119] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 07/15/2020] [Accepted: 07/16/2020] [Indexed: 12/14/2022] Open
Abstract
Chemokines, which are basic proteins that exert their effects via G protein-coupled receptors and a subset of the cytokine family, are mediators deeply involved in leukocyte migration during an inflammatory reaction. Chemokine (C-C motif) ligand 20 (CCL20), also known as macrophage inflammatory protein (MIP)-3α, liver activation regulated chemokine (LARC), and Exodus-1, is a small protein that is physiologically expressed in the liver, colon, and skin, is involved in tissue inflammation and homeostasis, and has a specific receptor C-C chemokine receptor 6 (CCR6). The CCL20-CCR6 axis has long been known to be involved in inflammatory and infectious diseases, such as rheumatoid arthritis and human immunodeficiency virus infections. Recently, however, reports have shown that the CCL20-CCR6 axis is associated with several cancers, including hepatocellular carcinoma, colorectal cancer, breast cancer, pancreatic cancer, cervical cancer, and kidney cancer. The CCL20-CCR6 axis promotes cancer progression directly by enhancing migration and proliferation of cancer cells and indirectly by remodeling the tumor microenvironment through immune cell control. The present article reviewed the role of the CCL20-CCR6 axis in cancer progression and its potential as a therapeutic target.
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Affiliation(s)
| | - Kouji Izumi
- Correspondence: ; Tel.: +81-76-265-2393; Fax: +81-76-234-4263
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7
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Generating therapeutic monoclonal antibodies to complex multi-spanning membrane targets: Overcoming the antigen challenge and enabling discovery strategies. Methods 2020; 180:111-126. [PMID: 32422249 DOI: 10.1016/j.ymeth.2020.05.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 04/21/2020] [Accepted: 05/13/2020] [Indexed: 12/17/2022] Open
Abstract
Complex integral membrane proteins, which are embedded in the cell surface lipid bilayer by multiple transmembrane spanning helices, encompass families of proteins which are important target classes for drug discovery. These protein families include G protein-coupled receptors, ion channels and transporters. Although these proteins have typically been targeted by small molecule drugs and peptides, the high specificity of monoclonal antibodies offers a significant opportunity to selectively modulate these target proteins. However, it remains the case that isolation of antibodies with desired pharmacological function(s) has proven difficult due to technical challenges in preparing membrane protein antigens suitable to support antibody drug discovery. In this review recent progress in defining strategies for generation of membrane protein antigens is outlined. We also highlight antibody isolation strategies which have generated antibodies which bind the membrane protein and modulate the protein function.
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8
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Carballido JM, Regairaz C, Rauld C, Raad L, Picard D, Kammüller M. The Emerging Jamboree of Transformative Therapies for Autoimmune Diseases. Front Immunol 2020; 11:472. [PMID: 32296421 PMCID: PMC7137386 DOI: 10.3389/fimmu.2020.00472] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Accepted: 02/28/2020] [Indexed: 12/12/2022] Open
Abstract
Standard treatments for autoimmune and autoinflammatory disorders rely mainly on immunosuppression. These are predominantly symptomatic remedies that do not affect the root cause of the disease and are associated with multiple side effects. Immunotherapies are being developed during the last decades as more specific and safer alternatives to small molecules with broad immunosuppressive activity, but they still do not distinguish between disease-causing and protective cell targets and thus, they still have considerable risks of increasing susceptibility to infections and/or malignancy. Antigen-specific approaches inducing immune tolerance represent an emerging trend carrying the potential to be curative without inducing broad immunosuppression. These therapies are based on antigenic epitopes derived from the same proteins that are targeted by the autoreactive T and B cells, and which are administered to patients together with precise instructions to induce regulatory responses capable to restore homeostasis. They are not personalized medicines, and they do not need to be. They are precision therapies exquisitely targeting the disease-causing cells that drive pathology in defined patient populations. Immune tolerance approaches are truly transformative options for people suffering from autoimmune diseases.
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Affiliation(s)
- José M Carballido
- Translational Medicine, Novartis Institutes for Biomedical Research, Basel, Switzerland.,Autoimmunity Transplantation and Inflammation, Novartis Institutes for Biomedical Research, Basel, Switzerland
| | - Camille Regairaz
- Autoimmunity Transplantation and Inflammation, Novartis Institutes for Biomedical Research, Basel, Switzerland
| | - Celine Rauld
- Autoimmunity Transplantation and Inflammation, Novartis Institutes for Biomedical Research, Basel, Switzerland
| | - Layla Raad
- Autoimmunity Transplantation and Inflammation, Novartis Institutes for Biomedical Research, Basel, Switzerland
| | - Damien Picard
- Translational Medicine, Novartis Institutes for Biomedical Research, Basel, Switzerland
| | - Michael Kammüller
- Translational Medicine, Novartis Institutes for Biomedical Research, Basel, Switzerland
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9
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Win Maung HM, Chan-On W, Kunkeaw N, Khaenam P. Common transcriptional programs and the role of chemokine (C-C motif) ligand 20 ( CCL20) in cell migration of cholangiocarcinoma. EXCLI JOURNAL 2020; 19:154-166. [PMID: 32194362 PMCID: PMC7068202 DOI: 10.17179/excli2019-1893] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 01/14/2020] [Indexed: 12/15/2022]
Abstract
The incidence of cholangiocarcinoma (CCA) has risen in many countries, but there is still no appropriate screening and treatment available. The growing number of microarray data published todays can be a powerful resource for the discovery of biomarkers to tackle challenges in the management of CCA. This study analyzed multiple microarray datasets to identify the common transcriptional networks in CCA and select a possible biomarker for functional study in CCA cell lines. A systematic searching identified 4 microarray datasets from Gene Expression Omnibus (GEO) repository and PubMed articles. Differential expression analysis between tumor and normal tissues was performed in each dataset. In order to characterize the common expression pattern, differentially expressed genes (DEGs) from all datasets were combined and visualized by hierarchical clustering and heatmap. Gene enrichment analysis performed in each cluster revealed that over-expressed DEGs were enriched in cell cycle, cell migration and response to cytokines while under-expressed DEGs were enriched in metabolic processes such as oxidation-reduction, lipid, and drug. To explain tumor characteristics, genes enriched in cell migration and response to cytokines were further investigated. Among these genes, CCL20 was selected for functional study because its role has never been studied in CCA. Moreover, its signaling may be regulated by disrupting its only receptor, CCR6. Treatment with recombinant CCL20 induced higher cell migration and increased expression of N-cad. In contrast, knockdown of CCR6 by siRNA reduced cell migration ability and decreased N-cadherin level. Altogether, these results suggested the contribution of CCL20/CCR6 signaling in cell migration through epithelial-mesenchymal transition process. Thus, CCL20/CCR6 signaling might be a target for the management of CCA.
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Affiliation(s)
- Hay Mar Win Maung
- Center for Standardization and Product Validation, Faculty of Medical Technology, Mahidol University, Nakhon Pathom, 73170, Thailand
| | - Waraporn Chan-On
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Nakhon Pathom, 73170, Thailand
| | - Nawapol Kunkeaw
- Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, 73170, Thailand
| | - Prasong Khaenam
- Center for Standardization and Product Validation, Faculty of Medical Technology, Mahidol University, Nakhon Pathom, 73170, Thailand
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10
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Bispecific Antibodies for Autoimmune and Inflammatory Diseases: Clinical Progress to Date. BioDrugs 2020; 34:111-119. [DOI: 10.1007/s40259-019-00400-2] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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11
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McGeachy MJ, Cua DJ, Gaffen SL. The IL-17 Family of Cytokines in Health and Disease. Immunity 2019; 50:892-906. [PMID: 30995505 DOI: 10.1016/j.immuni.2019.03.021] [Citation(s) in RCA: 750] [Impact Index Per Article: 150.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 03/14/2019] [Accepted: 03/21/2019] [Indexed: 12/20/2022]
Abstract
The interleukin 17 (IL-17) family of cytokines contains 6 structurally related cytokines, IL-17A through IL-17F. IL-17A, the prototypical member of this family, just passed the 25th anniversary of its discovery. Although less is known about IL-17B-F, IL-17A (commonly known as IL-17) has received much attention for its pro-inflammatory role in autoimmune disease. Over the past decade, however, it has become clear that the functions of IL-17 are far more nuanced than simply turning on inflammation. Accumulating evidence indicates that IL-17 has important context- and tissue-dependent roles in maintaining health during response to injury, physiological stress, and infection. Here, we discuss the functions of the IL-17 family, with a focus on the balance between the pathogenic and protective roles of IL-17 in cancer and autoimmune disease, including results of therapeutic blockade and novel aspects of IL-17 signal transduction regulation.
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Affiliation(s)
- Mandy J McGeachy
- Division of Rheumatology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA.
| | | | - Sarah L Gaffen
- Division of Rheumatology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA.
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12
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Therapeutic Monoclonal Antibodies to Complex Membrane Protein Targets: Antigen Generation and Antibody Discovery Strategies. BioDrugs 2019; 32:339-355. [PMID: 29934752 DOI: 10.1007/s40259-018-0289-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Cell surface membrane proteins comprise a wide array of structurally and functionally diverse proteins involved in a variety of important physiological and homeostatic processes. Complex integral membrane proteins, which are embedded in the lipid bilayer by multiple transmembrane-spanning helices, are represented by families of proteins that are important target classes for drug discovery. Such protein families include G-protein-coupled receptors, ion channels and transporters. Although these targets have typically been the domain of small-molecule drugs, the exquisite specificity of monoclonal antibodies offers a significant opportunity to selectively modulate these target proteins. Nevertheless, the isolation of antibodies with desired pharmacological functions has proved difficult because of technical challenges in preparing membrane protein antigens for antibody drug discovery. In this review, we describe recent progress in defining strategies for the generation of membrane protein antigens. We also describe antibody-isolation strategies that identify antibodies that bind the membrane protein and modulate protein function.
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13
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Lee HY, Contreras E, Register AC, Wu Q, Abadie K, Garcia K, Wong PY, Jiang G. Development of a bioassay to detect T-cell-activating impurities for T-cell-dependent bispecific antibodies. Sci Rep 2019; 9:3900. [PMID: 30846832 PMCID: PMC6405939 DOI: 10.1038/s41598-019-40689-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 02/21/2019] [Indexed: 12/20/2022] Open
Abstract
T-cell-dependent bispecific antibodies (TDBs) are promising cancer immunotherapies that recruit a patient's T cells to kill cancer cells. There are increasing numbers of TBDs in clinical trials, demonstrating their widely recognized therapeutic potential. Due to the fact that TDBs engage and activate T cells via an anti-CD3 (aCD3) arm, aCD3 homodimer (aCD3 HD) and high-molecular-weight species (HMWS) are product-related impurities that pose a potential safety risk by triggering off-target T-cell activation through bivalent engagement and dimerization of T-cell receptors (TCRs). To monitor and control the level of unspecific T-cell activation, we developed a sensitive and quantitative T-cell-activation assay, which can detect aCD3 HD in TDB drug product by exploiting its ability to activate T cells in the absence of target cells. This assay provides in-vivo-relevant off-target T-cell-activation readout. Furthermore, we have demonstrated that this assay can serve as a platform assay for detecting T-cell-activating impurities across a broad spectrum of aCD3 bispecific molecules. It therefore has the potential to significantly benefit many T-cell-recruiting bispecific programs.
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Affiliation(s)
- Ho Young Lee
- Biological Technologies, Department of Analytical Development and Quality Control, Genentech-a Member of the Roche Group, South San Francisco, California, 94080, USA.
| | - Edward Contreras
- Biological Technologies, Department of Analytical Development and Quality Control, Genentech-a Member of the Roche Group, South San Francisco, California, 94080, USA
| | - Ames C Register
- Biological Technologies, Department of Analytical Development and Quality Control, Genentech-a Member of the Roche Group, South San Francisco, California, 94080, USA
| | - Qiang Wu
- Biological Technologies, Department of Analytical Development and Quality Control, Genentech-a Member of the Roche Group, South San Francisco, California, 94080, USA
| | - Kathleen Abadie
- Biological Technologies, Department of Analytical Development and Quality Control, Genentech-a Member of the Roche Group, South San Francisco, California, 94080, USA
| | - Khristofer Garcia
- Biological Technologies, Department of Analytical Development and Quality Control, Genentech-a Member of the Roche Group, South San Francisco, California, 94080, USA
| | - Pin Yee Wong
- Biological Technologies, Department of Analytical Development and Quality Control, Genentech-a Member of the Roche Group, South San Francisco, California, 94080, USA
| | - Guoying Jiang
- Biological Technologies, Department of Analytical Development and Quality Control, Genentech-a Member of the Roche Group, South San Francisco, California, 94080, USA.
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14
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Roth-Walter F, Adcock IM, Benito-Villalvilla C, Bianchini R, Bjermer L, Caramori G, Cari L, Chung K, Diamant Z, Eguiluz-Gracia I, Knol E, Kolios AGA, Levi-Schaffer F, Nocentini G, Palomares O, Puzzovio PG, Redegeld F, van Esch BCAM, Stellato C. Comparing biologicals and small molecule drug therapies for chronic respiratory diseases: An EAACI Taskforce on Immunopharmacology position paper. Allergy 2019; 74:432-448. [PMID: 30353939 DOI: 10.1111/all.13642] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 10/05/2018] [Indexed: 12/19/2022]
Abstract
Chronic airway diseases such as asthma and chronic obstructive pulmonary disease (COPD), together with their comorbidities, bear a significant burden on public health. Increased appreciation of molecular networks underlying inflammatory airway disease needs to be translated into new therapies for distinct phenotypes not controlled by current treatment regimens. On the other hand, development of new safe and effective therapies for such respiratory diseases is an arduous and expensive process. Antibody-based (biological) therapies are successful in treating certain respiratory conditions not controlled by standard therapies such as severe allergic and refractory eosinophilic severe asthma, while in other inflammatory respiratory diseases, such as COPD, biologicals are having a more limited impact. Small molecule drug (SMD)-based therapies represent an active field in pharmaceutical research and development. SMDs expand biologicals' therapeutic targets by reaching the intracellular compartment by delivery as either an oral or topically based formulation, offering both convenience and lower costs. Aim of this review was to compare and contrast the distinct pharmacological properties and clinical applications of SMDs- and antibody-based treatment strategies, their limitations and challenges, in order to highlight how they should be integrated for their optimal utilization and to fill the critical gaps in current treatment for these chronic inflammatory respiratory diseases.
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Affiliation(s)
- Franziska Roth-Walter
- Comparative Medicine; The Interuniversity Messerli Research Institute of the University of Veterinary Medicine Vienna; Medical University Vienna and University Vienna; Vienna Austria
| | - Ian M. Adcock
- Molecular Cell Biology Group; National Heart & Lung Institute; Imperial College London; London UK
| | - Cristina Benito-Villalvilla
- Department of Biochemistry and Molecular Biology; School of Chemistry; Complutense University of Madrid; Madrid Spain
| | - Rodolfo Bianchini
- Comparative Medicine; The Interuniversity Messerli Research Institute of the University of Veterinary Medicine Vienna; Medical University Vienna and University Vienna; Vienna Austria
| | - Leif Bjermer
- Department of Respiratory Medicine and Allergology, Lung and Allergy Research; Allergy, Asthma and COPD Competence center; Lund University; Lund Sweden
| | - Gaetano Caramori
- Pulmonary Unit; Department of Biomedical Sciences; Dentistry, Morphological and Functional Imaging (BIOMORF); University of Messina; Messina Italy
| | - Luigi Cari
- Department of Medicine; Section of Pharmacology; University of Perugia; Perugia Italy
| | - Kian Fan Chung
- Experimental Studies Medicine at National Heart & Lung Institute; Imperial College London; Royal Brompton & Harefield NHS Trust; London UK
| | - Zuzana Diamant
- Department of Clinical Pharmacy and Pharmacology; University Medical Center Groningen; University of Groningen; Groningen The Netherlands
- Department of Respiratory Medicine and Allergology; Institute for Clinical Science; Skane University Hospital; Lund Sweden
| | - Ibon Eguiluz-Gracia
- Allergy Unit and Research Laboratory; Regional University Hospital of Málaga and Biomedical Research Institute of Malaga (IBIMA); Málaga Spain
| | - Edward F. Knol
- Departments of Immunology and Dermatology/Allergology; University Medical Center Utrecht; Utrecht The Netherlands
| | | | - Francesca Levi-Schaffer
- Institute for Drug Research; School of Pharmacy; Faculty of Medicine; The Hebrew University of Jerusalem; Jerusalem Israel
| | - Giuseppe Nocentini
- Department of Medicine; Section of Pharmacology; University of Perugia; Perugia Italy
| | - Oscar Palomares
- Department of Biochemistry and Molecular Biology; School of Chemistry; Complutense University of Madrid; Madrid Spain
| | - Pier Giorgio Puzzovio
- Institute for Drug Research; School of Pharmacy; Faculty of Medicine; The Hebrew University of Jerusalem; Jerusalem Israel
| | - Frank A. Redegeld
- Faculty of Science; Division of Pharmacology; Department of Pharmaceutical Sciences; Utrecht University; Utrecht The Netherlands
| | - Betty C. A. M. van Esch
- Faculty of Science; Division of Pharmacology; Department of Pharmaceutical Sciences; Utrecht University; Utrecht The Netherlands
| | - Cristiana Stellato
- Department of Medicine, Surgery and Dentistry “Scuola Medica Salernitana”; University of Salerno; Salerno Italy
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15
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Shen F, Verma AH, Volk A, Jones B, Coleman BM, Loza MJ, Malaviya R, Moore B, Weinstock D, Elloso MM, Gaffen SL, Ort T. Combined Blockade of TNF-α and IL-17A Alleviates Progression of Collagen-Induced Arthritis without Causing Serious Infections in Mice. THE JOURNAL OF IMMUNOLOGY 2019; 202:2017-2026. [PMID: 30745461 DOI: 10.4049/jimmunol.1801436] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 01/15/2019] [Indexed: 02/06/2023]
Abstract
The cytokines TNF-α and IL-17A are elevated in a variety of autoimmune diseases, including rheumatoid arthritis. Both cytokines are targets of several biologic drugs used in the clinic, but unfortunately many patients are refractory to these therapies. IL-17A and TNF-α are known to mediate signaling synergistically to drive expression of inflammatory genes. Hence, combined blockade of TNF-α and IL-17A represents an attractive treatment strategy in autoimmune settings where monotherapy is not fully effective. However, a major concern with this approach is the potential predisposition to opportunistic infections that might outweigh any clinical benefits. Accordingly, we examined the impact of individual versus combined neutralization of TNF-α and IL-17A in a mouse model of rheumatoid arthritis (collagen-induced arthritis) and the concomitant susceptibility to infections that are likely to manifest as side effects of blocking these cytokines (oral candidiasis or tuberculosis). Our findings indicate that combined neutralization of TNF-α and IL-17A was considerably more effective than monotherapy in improving collagen-induced arthritis disease even when administered at a minimally efficacious dose. Encouragingly, however, dual cytokine blockade did not cooperatively impair antimicrobial host defenses, as mice given combined IL-17A and TNF-α neutralization displayed infectious profiles and humoral responses comparable to mice given high doses of individual anti-TNF-α or anti-IL-17A mAbs. These data support the idea that combined neutralization of TNF-α and IL-17A for refractory autoimmunity is likely to be associated with acceptable and manageable risks of opportunistic infections associated with these cytokines.
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Affiliation(s)
- Fang Shen
- Immunology Discovery, Janssen Research and Development, LLC, Spring House, PA 19477
| | - Akash H Verma
- Division of Rheumatology and Clinical Immunology, University of Pittsburgh, Pittsburgh, PA 15261
| | - Amy Volk
- Immuno-Toxicology, Janssen Research and Development, LLC, Spring House, PA 19477; and
| | - Brian Jones
- Immunology Discovery, Janssen Research and Development, LLC, Spring House, PA 19477
| | - Bianca M Coleman
- Division of Rheumatology and Clinical Immunology, University of Pittsburgh, Pittsburgh, PA 15261
| | - Matthew J Loza
- Immunology Biomarker, Janssen Research and Development, LLC, Spring House, PA 19477
| | - Ravi Malaviya
- Immunology Discovery, Janssen Research and Development, LLC, Spring House, PA 19477
| | - Beverley Moore
- Immunology Discovery, Janssen Research and Development, LLC, Spring House, PA 19477
| | - Daniel Weinstock
- Immuno-Toxicology, Janssen Research and Development, LLC, Spring House, PA 19477; and
| | - M Merle Elloso
- Immunology Discovery, Janssen Research and Development, LLC, Spring House, PA 19477
| | - Sarah L Gaffen
- Division of Rheumatology and Clinical Immunology, University of Pittsburgh, Pittsburgh, PA 15261;
| | - Tatiana Ort
- Immunology Discovery, Janssen Research and Development, LLC, Spring House, PA 19477;
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16
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Owens GC, Garcia AJ, Mochizuki AY, Chang JW, Reyes SD, Salamon N, Prins RM, Mathern GW, Fallah A. Evidence for Innate and Adaptive Immune Responses in a Cohort of Intractable Pediatric Epilepsy Surgery Patients. Front Immunol 2019; 10:121. [PMID: 30761153 PMCID: PMC6362260 DOI: 10.3389/fimmu.2019.00121] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Accepted: 01/15/2019] [Indexed: 12/31/2022] Open
Abstract
Brain-infiltrating lymphocytes (BILs) were isolated from resected brain tissue from 10 pediatric epilepsy patients who had undergone surgery for Hemimegalencephaly (HME) (n = 1), Tuberous sclerosis complex (TSC) (n = 2), Focal cortical dysplasia (FCD) (n = 4), and Rasmussen encephalitis (RE) (n = 3). Peripheral blood mononuclear cells (PBMCs) were also isolated from blood collected at the time of the surgery. Cells were immunostained with a panel of 20 antibody markers, and analyzed by mass cytometry. To identify and quantify the immune cell types in the samples, an unbiased clustering method was applied to the entire data set. More than 85 percent of the CD45+ cells isolated from resected RE brain tissue comprised T cells; by contrast NK cells and myeloid cells constituted 80-95 percent of the CD45+ cells isolated from the TSC and the FCD brain specimens. Three populations of myeloid cells made up >50 percent of all of the myeloid cells in all of the samples of which a population of HLA-DR+ CD11b+ CD4- cells comprised the vast majority of myeloid cells in the BIL fractions from the FCD and TSC cases. CD45RA+ HLA-DR- CD11b+ CD16+ NK cells constituted the major population of NK cells in the blood from all of the cases. This subset also comprised the majority of NK cells in BILs from the resected RE and HME brain tissue, whereas NK cells defined as CD45RA- HLA-DR+ CD11b- CD16- cells comprised 86-96 percent of the NK cells isolated from the FCD and TSC brain tissue. Thirteen different subsets of CD4 and CD8 αβ T cells and γδ T cells accounted for over 80% of the CD3+ T cells in all of the BIL and PBMC samples. At least 90 percent of the T cells in the RE BILs, 80 percent of the T cells in the HME BILs and 40-66 percent in the TSC and FCD BILs comprised activated antigen-experienced (CD45RO+ HLA-DR+ CD69+) T cells. We conclude that even in cases where there is no evidence for an infection or an immune disorder, activated peripheral immune cells may be present in epileptogenic areas of the brain, possibly in response to seizure-driven brain inflammation.
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Affiliation(s)
- Geoffrey C. Owens
- Department of Neurosurgery, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
| | - Alejandro J. Garcia
- Division of Hematology Oncology, Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
| | - Aaron Y. Mochizuki
- Division of Hematology Oncology, Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
- Department of Pediatrics, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
| | - Julia W. Chang
- Department of Neurosurgery, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
- Intellectual and Developmental Disabilities Research Center, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
| | - Samuel D. Reyes
- Department of Neurosurgery, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
| | - Noriko Salamon
- Department of Radiological Sciences, David Geffen School of Medicine at the University of California, Los Angeles, Los Angeles, CA, United States
| | - Robert M. Prins
- Department of Neurosurgery, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
- Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
- Brain Research Institute, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
- Parker Institute for Cancer Immunotherapy, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
| | - Gary W. Mathern
- Department of Neurosurgery, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
- Intellectual and Developmental Disabilities Research Center, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
- Brain Research Institute, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
- Mattel Children's Hospital, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
| | - Aria Fallah
- Department of Neurosurgery, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
- Brain Research Institute, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
- Mattel Children's Hospital, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
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17
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Ranasinghe R, Eri R. Modulation of the CCR6-CCL20 Axis: A Potential Therapeutic Target in Inflammation and Cancer. ACTA ACUST UNITED AC 2018; 54:medicina54050088. [PMID: 30453514 PMCID: PMC6262638 DOI: 10.3390/medicina54050088] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Revised: 11/01/2018] [Accepted: 11/13/2018] [Indexed: 12/23/2022]
Abstract
Prototypical functions of the chemokine receptor CCR6 include immune regulation by maneuvering cell chemotaxis and selective delimiting of the pro-inflammatory TH17 and regulatory Treg subsets during chronic or acute systemic inflammation. Inhibition of CCR6 is proposed to attenuate disease symptoms and promote recuperation of multiple inflammatory and autoimmune disorders. Prescription medicines with pharmacodynamics involving the inhibition of the chemokine axis CCR6–CCL20 are very limited. The development of such therapeutics is still at an early experimental stage and has mostly involved the utilization of pre-clinical models and neutralizing mono or polyclonal antibodies against either partner (CCR6 or CCL20). Other methods include the constitutive use of small molecules as peptide inhibitors or small interfering ribonucleic acid (siRNA) to interfere with transcription at the nuclear level. In our review, we aim to introduce the wide array of potential CCR6–CCL20 inhibitors with an emphasis on attendant immune-modulator capacity that have been tested in the research field to date and are immensely promising compounds as forerunners of future curatives. Sixteen different tractable inhibitors of the CCR6–CCL20 duo have been identified as possessing high medicinal potential by drug developers worldwide to treat autoimmune and inflammatory diseases as shown in Figure 1. A multitude of antibody preparations are already available in the current pharmaceutical market as patented treatments for diseases in which the CCR6–CCL20 axis is operative, yet they must be used only as supplements with existing routinely prescribed medication as they collectively produce adverse side effects. Novel inhibitors are needed to evaluate this invaluable therapeutic target which holds much promise in the research and development of complaisant remedies for inflammatory diseases.
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Affiliation(s)
- Ranmali Ranasinghe
- School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Tasmania 7248, Australia.
| | - Rajaraman Eri
- School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Tasmania 7248, Australia.
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18
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Abstract
Bispecific antibodies have moved from being an academic curiosity with therapeutic promise to reality, with two molecules being currently commercialized (Hemlibra® and Blincyto®) and many more in clinical trials. The success of bispecific antibodies is mainly due to the continuously growing number of mechanisms of actions (MOA) they enable that are not accessible to monoclonal antibodies. One of the earliest MOA of bispecific antibodies and currently the one with the largest number of clinical trials is the redirecting of the cytotoxic activity of T-cells for oncology applications, now extending its use in infective diseases. The use of bispecific antibodies for crossing the blood-brain barrier is another important application because of its potential to advance the therapeutic options for neurological diseases. Another noteworthy application due to its growing trend is enabling a more tissue-specific delivery or activity of antibodies. The different molecular solutions to the initial hurdles that limited the development of bispecific antibodies have led to the current diverse set of bispecific or multispecific antibody formats that can be grouped into three main categories: IgG-like formats, antibody fragment-based formats, or appended IgG formats. The expanded applications of bispecific antibodies come at the price of additional challenges for clinical development. The rising complexity in their structure may increase the risk of immunogenicity and the multiple antigen specificity complicates the selection of relevant species for safety assessment.
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Affiliation(s)
- Bushra Husain
- Protein Chemistry Department, Genentech Inc., South San Francisco, CA, 94080, USA
| | - Diego Ellerman
- Protein Chemistry Department, Genentech Inc., South San Francisco, CA, 94080, USA.
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19
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Pranzatelli MR. Advances in Biomarker-Guided Therapy for Pediatric- and Adult-Onset Neuroinflammatory Disorders: Targeting Chemokines/Cytokines. Front Immunol 2018; 9:557. [PMID: 29670611 PMCID: PMC5893838 DOI: 10.3389/fimmu.2018.00557] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Accepted: 03/05/2018] [Indexed: 12/26/2022] Open
Abstract
The concept and recognized components of “neuroinflammation” are expanding at the intersection of neurobiology and immunobiology. Chemokines (CKs), no longer merely necessary for immune cell trafficking and positioning, have multiple physiologic, developmental, and modulatory functionalities in the central nervous system (CNS) through neuron–glia interactions and other mechanisms affecting neurotransmission. They issue the “help me” cry of neurons and astrocytes in response to CNS injury, engaging invading lymphoid cells (T cells and B cells) and myeloid cells (dendritic cells, monocytes, and neutrophils) (adaptive immunity), as well as microglia and macrophages (innate immunity), in a cascade of events, some beneficial (reparative), others destructive (excitotoxic). Human cerebrospinal fluid (CSF) studies have been instrumental in revealing soluble immunobiomarkers involved in immune dysregulation, their dichotomous effects, and the cells—often subtype specific—that produce them. CKs/cytokines continue to be attractive targets for the pharmaceutical industry with varying therapeutic success. This review summarizes the developing armamentarium, complexities of not compromising surveillance/physiologic functions, and insights on applicable strategies for neuroinflammatory disorders. The main approach has been using a designer monoclonal antibody to bind directly to the chemo/cytokine. Another approach is soluble receptors to bind the chemo/cytokine molecule (receptor ligand). Recombinant fusion proteins combine a key component of the receptor with IgG1. An additional approach is small molecule antagonists (protein therapeutics, binding proteins, and protein antagonists). CK neutralizing molecules (“neutraligands”) that are not receptor antagonists, high-affinity neuroligands (“decoy molecules”), as well as neutralizing “nanobodies” (single-domain camelid antibody fragment) are being developed. Simultaneous, more precise targeting of more than one cytokine is possible using bispecific agents (fusion antibodies). It is also possible to inhibit part of a signaling cascade to spare protective cytokine effects. “Fusokines” (fusion of two cytokines or a cytokine and CK) allow greater synergistic bioactivity than individual cytokines. Another promising approach is experimental targeting of the NLRP3 inflammasome, amply expressed in the CNS and a key contributor to neuroinflammation. Serendipitous discovery is not to be discounted. Filling in knowledge gaps between pediatric- and adult-onset neuroinflammation by systematic collection of CSF data on CKs/cytokines in temporal and clinical contexts and incorporating immunobiomarkers in clinical trials is a challenge hereby set forth for clinicians and researchers.
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Affiliation(s)
- Michael R Pranzatelli
- National Pediatric Neuroinflammation Organization, Inc., Orlando, FL, United States.,College of Medicine, University of Central Florida, Orlando, FL, United States
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