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Labeur-Iurman L, Harker JA. Mechanisms of antibody mediated immunity - Distinct in early life. Int J Biochem Cell Biol 2024; 172:106588. [PMID: 38768890 DOI: 10.1016/j.biocel.2024.106588] [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] [Received: 11/17/2023] [Revised: 05/08/2024] [Accepted: 05/10/2024] [Indexed: 05/22/2024]
Abstract
Immune responses in early life are characterized by a failure to robustly generate long-lasting protective responses against many common pathogens or upon vaccination. This is associated with a reduced ability to generate T-cell dependent high affinity antibodies. This review highlights the differences in T-cell dependent antibody responses observed between infants and adults, in particular focussing on the alterations in immune cell function that lead to reduced T follicular helper cell-B cell crosstalk within germinal centres in early life. Understanding the distinct functional characteristics of early life humoral immunity, and how these are regulated, will be critical in guiding age-appropriate immunological interventions in the very young.
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Affiliation(s)
- Lucia Labeur-Iurman
- National Heart & Lung Institute, Imperial College London, London, United Kingdom.
| | - James A Harker
- National Heart & Lung Institute, Imperial College London, London, United Kingdom; Centre for Paediatrics and Child Health, Imperial College London, London, United Kingdom.
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2
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Fey RM, Nichols RA, Tran TT, Vandenbark AA, Kulkarni RP. MIF and CD74 as Emerging Biomarkers for Immune Checkpoint Blockade Therapy. Cancers (Basel) 2024; 16:1773. [PMID: 38730725 PMCID: PMC11082995 DOI: 10.3390/cancers16091773] [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: 03/14/2024] [Revised: 04/18/2024] [Accepted: 04/26/2024] [Indexed: 05/13/2024] Open
Abstract
Immune checkpoint blockade (ICB) therapy is used to treat a wide range of cancers; however, some patients are at risk of developing treatment resistance and/or immune-related adverse events (irAEs). Thus, there is a great need for the identification of reliable predictive biomarkers for response and toxicity. The cytokine MIF (macrophage migration inhibitory factor) and its cognate receptor CD74 are intimately connected with cancer progression and have previously been proposed as prognostic biomarkers for patient outcome in various cancers, including solid tumors such as malignant melanoma. Here, we assess their potential as predictive biomarkers for response to ICB therapy and irAE development. We provide a brief overview of their function and roles in the context of cancer and autoimmune disease. We also review the evidence showing that MIF and CD74 may be of use as predictive biomarkers of patient response to ICB therapy and irAE development. We also highlight that careful consideration is required when assessing the potential of serum MIF levels as a biomarker due to its reported circadian expression in human plasma. Finally, we suggest future directions for the establishment of MIF and CD74 as predictive biomarkers for ICB therapy and irAE development to guide further research in this field.
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Affiliation(s)
- Rosalyn M. Fey
- Department of Dermatology, Oregon Health & Science University, Portland, OR 97239, USA (R.A.N.)
| | - Rebecca A. Nichols
- Department of Dermatology, Oregon Health & Science University, Portland, OR 97239, USA (R.A.N.)
| | - Thuy T. Tran
- Yale Cancer Center, Yale University School of Medicine, New Haven, CT 06510, USA
| | - Arthur A. Vandenbark
- Neuroimmunology Research, R&D-31, VA Portland Health Care System, Portland, OR 97239, USA
- Department of Neurology, Oregon Health & Science University, Portland, OR 97239, USA
- Department of Molecular Microbiology and Immunology, Oregon Health & Science University, Portland, OR 97239, USA
| | - Rajan P. Kulkarni
- Department of Dermatology, Oregon Health & Science University, Portland, OR 97239, USA (R.A.N.)
- Cancer Early Detection Advanced Research Center (CEDAR), Portland, OR 97239, USA
- Knight Cancer Institute, Oregon Health and Science University, Portland, OR 97239, USA
- Operative Care Division, U.S. Department of Veterans Affairs Portland Health Care System, Portland, OR 97239, USA
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3
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Elias C, Chen C, Cherukuri A. Regulatory B Cells in Solid Organ Transplantation: From Immune Monitoring to Immunotherapy. Transplantation 2024; 108:1080-1089. [PMID: 37779239 PMCID: PMC10985051 DOI: 10.1097/tp.0000000000004798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
Regulatory B cells (Breg) modulate the immune response in diverse disease settings including transplantation. Despite the lack of a specific phenotypic marker or transcription factor, their significance in transplantation is underscored by their ability to prolong experimental allograft survival, the possibility for their clinical use as immune monitoring tools, and the exciting prospect for them to form the basis for cell therapy. Interleukin (IL)-10 expression remains the most widely used marker for Breg. Several Breg subsets with distinct phenotypes that express this "signature Breg cytokine" have been described in mice and humans. Although T-cell immunoglobulin and mucin family-1 is the most inclusive and functional marker that accounts for murine Breg with disparate mechanisms of action, the significance of T-cell immunoglobulin and mucin family-1 as a marker for Breg in humans still needs to be explored. Although the primary focus of this review is the role of Breg in clinical transplantation, the net modulatory effect of B cells on the immune response and clinical outcomes is the result of the balancing functions of both Breg and effector B cells. Supporting this notion, B-cell IL-10/tumor necrosis factor α ratio is shown to predict immunologic reactivity and clinical outcomes in kidney and liver transplantation. Assessment of Breg:B effector balance using their IL-10/tumor necrosis factor α ratio may identify patients that require more immunosuppression and provide mechanistic insights into potential therapies. In summary, current advances in our understanding of murine and human Breg will pave way for future definitive clinical studies aiming to test them for immune monitoring and as therapeutic targets.
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Affiliation(s)
- Charbel Elias
- Thomas E. Starzl Transplantation Institute, University of Pittsburgh, Pittsburgh, PA, USA
| | - Chuxiao Chen
- Thomas E. Starzl Transplantation Institute, University of Pittsburgh, Pittsburgh, PA, USA
- Organ Transplant Center, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Aravind Cherukuri
- Thomas E. Starzl Transplantation Institute, University of Pittsburgh, Pittsburgh, PA, USA
- Renal and Electrolyte Division, Department of Internal Medicine, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Immunology, University of Pittsburgh, Pittsburgh, PA, USA
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4
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Sert B, Gulden G, Teymur T, Ay Y, Turan RD, Unaldi OM, Guzenge E, Erdil HE, Isik S, Oz P, Bozkurt I, Ozer S, Yurdakul T, Kamali O, Ovali E, Tarhan N, Tastan C. Enhancing CAR-T cells: unleashing lasting impact potential with phytohemagglutinin activation in in vivo leukemia model. Cancer Gene Ther 2024; 31:387-396. [PMID: 38092962 DOI: 10.1038/s41417-023-00709-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 11/20/2023] [Accepted: 11/27/2023] [Indexed: 03/16/2024]
Abstract
Chimeric antigen receptor T (CAR-T) cell therapy holds great promise as an innovative immunotherapeutic approach for cancer treatment. To optimize the production and application of CAR-T cells, we evaluated the in vivo stability and efficacy capacities of CAR-T cells developed under different conditions. In this study, CAR-T cells were activated using Phytohemagglutinin (PHA) or anti-CD3&anti-CD28 and were compared in an in vivo CD19+B-cell cancer model in mouse groups. Our results demonstrated that CAR-T cells activated with PHA exhibited higher stability and anti-cancer efficacy compared to those activated with anti-CD3&anti-CD28. Specifically, CAR19BB-T cells activated with PHA exhibited continuous proliferation and long-term persistence without compromising their anti-cancer efficacy. Kaplan-Meier survival analysis revealed prolonged overall survival in the CAR-T cell-treated groups compared to the only tumor group. Furthermore, specific LTR-targeted RT-PCR analysis confirmed the presence of CAR-T cells in the treated groups, with significantly higher levels observed in the CAR19BB-T (PHA) group compared to other groups. Histopathological analysis of spleen, kidney, and liver tissue sections indicated reduced inflammation and improved tissue integrity in the CAR-T cell-treated groups. Our findings highlight the potential benefits of using PHA as a co-stimulatory method for CAR-T cell production, offering a promising strategy to enhance their stability and persistence. These results provide valuable insights for the development of more effective and enduring immunotherapeutic approaches for cancer treatment. CAR-T cells activated with PHA may offer a compelling therapeutic option for advancing cancer immunotherapy in clinical applications.
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Affiliation(s)
- Berranur Sert
- Molecular Biology, Institute of Science and Technology, Üsküdar University, Istanbul, Turkey
- Transgenic Cell Technologies and Epigenetic Application and Research Center (TRGENMER), Üsküdar University, Istanbul, Turkey
| | - Gamze Gulden
- Molecular Biology, Institute of Science and Technology, Üsküdar University, Istanbul, Turkey
- Transgenic Cell Technologies and Epigenetic Application and Research Center (TRGENMER), Üsküdar University, Istanbul, Turkey
| | - Tarik Teymur
- Molecular Biology, Institute of Science and Technology, Üsküdar University, Istanbul, Turkey
- Transgenic Cell Technologies and Epigenetic Application and Research Center (TRGENMER), Üsküdar University, Istanbul, Turkey
| | - Yasin Ay
- Molecular Biology, Institute of Science and Technology, Üsküdar University, Istanbul, Turkey
- Transgenic Cell Technologies and Epigenetic Application and Research Center (TRGENMER), Üsküdar University, Istanbul, Turkey
| | - Raife Dilek Turan
- Department of Genetics and Bioengineering, Faculty of Engineering, Cell and Gene Therapy Excellence Center, Yeditepe University, Istanbul, Turkey
| | - Onur Mert Unaldi
- Transgenic Cell Technologies and Epigenetic Application and Research Center (TRGENMER), Üsküdar University, Istanbul, Turkey
- Molecular Biology and Genetics Department, Faculty of Engineering and Natural Science, Üsküdar University, Istanbul, Turkey
| | - Elanur Guzenge
- Transgenic Cell Technologies and Epigenetic Application and Research Center (TRGENMER), Üsküdar University, Istanbul, Turkey
- Molecular Biology and Genetics Department, Faculty of Engineering and Natural Science, Üsküdar University, Istanbul, Turkey
| | - Hamza Emir Erdil
- Transgenic Cell Technologies and Epigenetic Application and Research Center (TRGENMER), Üsküdar University, Istanbul, Turkey
- Molecular Biology and Genetics Department, Faculty of Engineering and Natural Science, Üsküdar University, Istanbul, Turkey
| | - Sevim Isik
- Molecular Biology and Genetics Department, Faculty of Engineering and Natural Science, Üsküdar University, Istanbul, Turkey
- Stem Cell Studies Application and Research Center (USKOKMER), Üsküdar University, Istanbul, Turkey
| | - Pinar Oz
- Molecular Biology and Genetics Department, Faculty of Engineering and Natural Science, Üsküdar University, Istanbul, Turkey
- Neuropsychopharmacology Application and Research Center (NPFUAM) Neurochemıstry Laboratory Üsküdar University, Istanbul, Turkey
| | | | - Samed Ozer
- Acıbadem Mehmet Ali Aydınlar University, Animal Application and Research Center, İstanbul, Turkey
| | - Tahire Yurdakul
- Molecular Biology, Institute of Science and Technology, Üsküdar University, Istanbul, Turkey
- Stem Cell Studies Application and Research Center (USKOKMER), Üsküdar University, Istanbul, Turkey
| | - Osman Kamali
- Neuropsychopharmacology Application and Research Center (NPFUAM) Neurochemıstry Laboratory Üsküdar University, Istanbul, Turkey
| | - Ercument Ovali
- Acıbadem Labcell Cellular Therapy Laboratory, İstanbul, Turkey
| | - Nevzat Tarhan
- NP Brain Hospital, Istanbul, Turkey
- Faculty of Humanities and Social Sciences, Üsküdar University, Istanbul, Turkey
| | - Cihan Tastan
- Transgenic Cell Technologies and Epigenetic Application and Research Center (TRGENMER), Üsküdar University, Istanbul, Turkey.
- Molecular Biology and Genetics Department, Faculty of Engineering and Natural Science, Üsküdar University, Istanbul, Turkey.
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5
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McGettigan SE, Aira LE, Kumar G, Ballet R, Butcher EC, Baumgarth N, Debes GF. Secreted IgM modulates IL-10 expression in B cells. Nat Commun 2024; 15:324. [PMID: 38182585 PMCID: PMC10773282 DOI: 10.1038/s41467-023-44382-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 12/12/2023] [Indexed: 01/07/2024] Open
Abstract
IL-10+ B cells are critical for immune homeostasis and restraining immune responses in infection, cancer, and inflammation; however, the signals that govern IL-10+ B cell differentiation are ill-defined. Here we find that IL-10+ B cells expand in mice lacking secreted IgM ((s)IgM-/-) up to 10-fold relative to wildtype (WT) among all major B cell and regulatory B cell subsets. The IL-10+ B cell increase is polyclonal and presents within 24 hours of birth. In WT mice, sIgM is produced prenatally and limits the expansion of IL-10+ B cells. Lack of the high affinity receptor for sIgM, FcμR, in B cells translates into an intermediate IL-10+ B cell phenotype relative to WT or sIgM-/- mice. Our study thus shows that sIgM regulates IL-10 programming in B cells in part via B cell-expressed FcμR, thereby revealing a function of sIgM in regulating immune homeostasis.
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Affiliation(s)
- Shannon Eileen McGettigan
- Department of Microbiology and Immunology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, 19107, USA
| | - Lazaro Emilio Aira
- Department of Microbiology and Immunology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, 19107, USA
| | - Gaurav Kumar
- Department of Cancer Biology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, 19107, USA
| | - Romain Ballet
- Palo Alto Veterans Institute for Research, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA
- Laboratory of Immunology and Vascular Biology, Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - Eugene C Butcher
- Palo Alto Veterans Institute for Research, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA
- Laboratory of Immunology and Vascular Biology, Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - Nicole Baumgarth
- Center for Immunology and Infectious Diseases, Dept. Pathology, Microbiology & Immunology, University of California Davis, Davis, CA, USA
- Department of Molecular Microbiology and Immunology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA
| | - Gudrun F Debes
- Department of Microbiology and Immunology, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, 19107, USA.
- Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA, 19107, USA.
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6
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Luo Y, Acevedo D, Vlagea A, Codina A, García-García A, Deyà-Martínez A, Martí-Castellote C, Esteve-Solé A, Alsina L. Changes in Treg and Breg cells in a healthy pediatric population. Front Immunol 2023; 14:1283981. [PMID: 38077340 PMCID: PMC10704817 DOI: 10.3389/fimmu.2023.1283981] [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: 08/27/2023] [Accepted: 10/31/2023] [Indexed: 12/18/2023] Open
Abstract
The interpretation of clinical diagnostic results in suspected inborn errors of immunity, including Tregopathies, is hampered by the lack of age-stratified reference values for regulatory T cells (Treg) in the pediatric population and a consensus on which Treg immunophenotype to use. Regulatory B cells (Breg) are an important component of the regulatory system that have been poorly studied in the pediatric population. We analyzed (1) the correlation between the three immunophenotypic definitions of Treg (CD4+CD25hiCD127low, CD4+CD25hiCD127lowFoxP3+, CD4+CD25hiFoxP3+), and with CD4+CD25hi and (2) the changes in Treg and Breg frequencies and their maturation status with age. We performed peripheral blood immunophenotyping of Treg and Breg (CD19+CD24hiCD38hi) by flow cytometry in 55 healthy pediatric controls. We observed that Treg numbers varied depending on the definition used, and the frequency ranged between 3.3-9.7% for CD4+CD25hiCD127low, 0.07-1.6% for CD4+CD25hiCD127lowFoxP3+, and 0.24-2.83% for CD4+CD25hiFoxP3+. The correlation between the three definitions of Treg was positive for most age ranges, especially between the two intracellular panels and with CD4+CD25hi vs CD4+CD25hiCD127low. Treg and Breg frequencies tended to decline after 7 and 3 years onwards, respectively. Treg's maturation status increased with age, with a decline of naïve Treg and an increase in memory/effector Treg from age 7 onwards. Memory Breg increased progressively from age 3 onwards. In conclusion, the number of Treg frequencies spans a wide range depending on the immunophenotypic definition used despite a good level of correlation exists between them. The decline in numbers and maturation process with age occurs earlier in Breg than in Treg.
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Affiliation(s)
- Yiyi Luo
- Clinical Immunology and Primary Immunodeficiencies Unit, Allergy and Clinical Immunology Department, Hospital Sant Joan de Déu, Barcelona, Spain
- Clinical Immunology Unit, Hospital Sant Joan de Déu-Hospital Clínic, Barcelona, Spain
- Study Group for Immune Dysfunction Diseases in Children (GEMDIP), Institut de Recerca Sant Joan de Déu, Barcelona, Spain
| | - Daniel Acevedo
- Clinical Immunology and Primary Immunodeficiencies Unit, Allergy and Clinical Immunology Department, Hospital Sant Joan de Déu, Barcelona, Spain
- Clinical Immunology Unit, Hospital Sant Joan de Déu-Hospital Clínic, Barcelona, Spain
- Study Group for Immune Dysfunction Diseases in Children (GEMDIP), Institut de Recerca Sant Joan de Déu, Barcelona, Spain
| | - Alexandru Vlagea
- Clinical Immunology Unit, Hospital Sant Joan de Déu-Hospital Clínic, Barcelona, Spain
- Biomedic Diagnostic Center (CDB), Hospital Clínic of Barcelona, Clinical Immunology Unit Hospital Sant Joan de Déu-Hospital Clínic de Barcelona, Barcelona, Spain
| | - Anna Codina
- Biobanco Pediátrico para la Investigación Hospital Sant Joan de Déu, Barcelona, Spain
| | - Ana García-García
- Clinical Immunology and Primary Immunodeficiencies Unit, Allergy and Clinical Immunology Department, Hospital Sant Joan de Déu, Barcelona, Spain
- Clinical Immunology Unit, Hospital Sant Joan de Déu-Hospital Clínic, Barcelona, Spain
- Study Group for Immune Dysfunction Diseases in Children (GEMDIP), Institut de Recerca Sant Joan de Déu, Barcelona, Spain
| | - Angela Deyà-Martínez
- Clinical Immunology and Primary Immunodeficiencies Unit, Allergy and Clinical Immunology Department, Hospital Sant Joan de Déu, Barcelona, Spain
- Clinical Immunology Unit, Hospital Sant Joan de Déu-Hospital Clínic, Barcelona, Spain
- Study Group for Immune Dysfunction Diseases in Children (GEMDIP), Institut de Recerca Sant Joan de Déu, Barcelona, Spain
| | - Celia Martí-Castellote
- Clinical Immunology and Primary Immunodeficiencies Unit, Allergy and Clinical Immunology Department, Hospital Sant Joan de Déu, Barcelona, Spain
- Clinical Immunology Unit, Hospital Sant Joan de Déu-Hospital Clínic, Barcelona, Spain
- Study Group for Immune Dysfunction Diseases in Children (GEMDIP), Institut de Recerca Sant Joan de Déu, Barcelona, Spain
| | - Ana Esteve-Solé
- Clinical Immunology and Primary Immunodeficiencies Unit, Allergy and Clinical Immunology Department, Hospital Sant Joan de Déu, Barcelona, Spain
- Clinical Immunology Unit, Hospital Sant Joan de Déu-Hospital Clínic, Barcelona, Spain
- Study Group for Immune Dysfunction Diseases in Children (GEMDIP), Institut de Recerca Sant Joan de Déu, Barcelona, Spain
| | - Laia Alsina
- Clinical Immunology and Primary Immunodeficiencies Unit, Allergy and Clinical Immunology Department, Hospital Sant Joan de Déu, Barcelona, Spain
- Clinical Immunology Unit, Hospital Sant Joan de Déu-Hospital Clínic, Barcelona, Spain
- Study Group for Immune Dysfunction Diseases in Children (GEMDIP), Institut de Recerca Sant Joan de Déu, Barcelona, Spain
- Department of Surgery and Medical Specializations, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, Barcelona, Spain
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Donald K, Finlay BB. Early-life interactions between the microbiota and immune system: impact on immune system development and atopic disease. Nat Rev Immunol 2023; 23:735-748. [PMID: 37138015 DOI: 10.1038/s41577-023-00874-w] [Citation(s) in RCA: 32] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/28/2023] [Indexed: 05/05/2023]
Abstract
Prenatal and early postnatal life represent key periods of immune system development. In addition to genetics and host biology, environment has a large and irreversible role in the immune maturation and health of an infant. One key player in this process is the gut microbiota, a diverse community of microorganisms that colonizes the human intestine. The diet, environment and medical interventions experienced by an infant determine the establishment and progression of the intestinal microbiota, which interacts with and trains the developing immune system. Several chronic immune-mediated diseases have been linked to an altered gut microbiota during early infancy. The recent rise in allergic disease incidence has been explained by the 'hygiene hypothesis', which states that societal changes in developed countries have led to reduced early-life microbial exposures, negatively impacting immunity. Although human cohort studies across the globe have established a correlation between early-life microbiota composition and atopy, mechanistic links and specific host-microorganism interactions are still being uncovered. Here, we detail the progression of immune system and microbiota maturation in early life, highlight the mechanistic links between microbes and the immune system, and summarize the role of early-life host-microorganism interactions in allergic disease development.
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Affiliation(s)
- Katherine Donald
- Michael Smith Laboratories, University of British Columbia, Vancouver, BC, Canada
- Department of Microbiology and Immunology, University of British Columbia, Vancouver, BC, Canada
| | - B Brett Finlay
- Michael Smith Laboratories, University of British Columbia, Vancouver, BC, Canada.
- Department of Microbiology and Immunology, University of British Columbia, Vancouver, BC, Canada.
- Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, BC, Canada.
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8
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Araie H, Hosono N, Tsujikawa T, Kiyono Y, Okazawa H, Yamauchi T. Hematopoiesis in the spleen after engraftment in unrelated cord blood transplantation evaluated by 18F-FLT PET imaging. Int J Hematol 2023; 118:618-626. [PMID: 37782417 PMCID: PMC10615934 DOI: 10.1007/s12185-023-03658-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 08/29/2023] [Accepted: 09/04/2023] [Indexed: 10/03/2023]
Abstract
Cord blood is an important donor source for allogeneic hematopoietic stem cell transplantation (allo-HSCT), with its unique composition and quality of hematopoietic cells. The proliferation site and potency of infused hematopoietic stem cells in humans may vary between stem cell sources. We investigated this possibility in a prospective, exploratory study to assess hematopoietic dynamics using the radiopharmaceutical 3'-deoxy-3'-18F-fluorothymidine (18F-FLT), a thymidine analog used in positron emission tomography imaging, before allo-HSCT and on days 50 and 180 after allo-HSCT. We evaluated 11 patients with hematological malignancies who underwent allo-HSCT [five with peripheral blood stem cell transplantation (PBSCT) and six with unrelated cord blood transplantation (UCBT)]. Before allo-HSCT, 18F-FLT uptake did not differ between the two groups. At day 50, 18F-FLT uptake in the spleen was significantly greater in the UCBT group than in the PBSCT group (p = 0.0043), with no difference in whole-body bone marrow. At day 180, the differences in spleen uptake had diminished, and there were no differences between groups in whole-body bone marrow or the spleen, except for the sternum. The persistence of splenic hematopoiesis after engraftment in the UCBT group may reflect the complex systemic homing and proliferation mechanisms of cord blood hematopoietic cells.
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Affiliation(s)
- Hiroaki Araie
- Department of Hematology and Oncology, Faculty of Medical Sciences, University of Fukui, 23-3 Matsuoka Shimoaizuki, Eiheiji-cho, Yoshida-gun, Fukui, 910-1193, Japan
| | - Naoko Hosono
- Department of Hematology and Oncology, Faculty of Medical Sciences, University of Fukui, 23-3 Matsuoka Shimoaizuki, Eiheiji-cho, Yoshida-gun, Fukui, 910-1193, Japan.
| | - Tetsuya Tsujikawa
- Department of Radiology, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
| | - Yasushi Kiyono
- Biomedical Imaging Research Center, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
| | - Hidehiko Okazawa
- Biomedical Imaging Research Center, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
| | - Takahiro Yamauchi
- Department of Hematology and Oncology, Faculty of Medical Sciences, University of Fukui, 23-3 Matsuoka Shimoaizuki, Eiheiji-cho, Yoshida-gun, Fukui, 910-1193, Japan
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9
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Liao M, Wang C, Zhang M, Qiao K. Insight on immune cells in rejection and infection postlung transplant. Immun Inflamm Dis 2023; 11:e868. [PMID: 37506156 PMCID: PMC10336664 DOI: 10.1002/iid3.868] [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: 12/02/2022] [Revised: 04/25/2023] [Accepted: 04/27/2023] [Indexed: 07/30/2023] Open
Abstract
OBJECTIVE The aim of this study is to provide a concise overview of the role of immune cells in rejection and infection after lung transplantation. METHODS Based on previous clinical and basic studies, the role of various types of immune cells in the development of rejection and infection after lung transplantation is summarized. RESULTS Immune cell functional status is strongly associated with common complications after lung transplantation, such as primary graft dysfunction, infection and occlusive bronchitis syndrome. Targeted balancing of immune cell tolerance and rejection is an important tool for successful lung transplantation. CONCLUSION A comprehensive understanding of immune cell function and the mechanisms that balance immune tolerance and immune rejection may be a crucial factor in improving survival after lung transplantation.
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Affiliation(s)
- Mingfeng Liao
- Guangdong Key Lab for Diagnosis & Treatment of Emerging Infectious Diseases, Shenzhen Third People's Hospital, Shenzhen, Guangdong Province, People's Republic of China
| | - Chaoxi Wang
- Department of Thoracic Surgery, Shenzhen Third People's Hospital, Shenzhen, Guangdong Province, People's Republic of China
| | - Mingxia Zhang
- Guangdong Key Lab for Diagnosis & Treatment of Emerging Infectious Diseases, Shenzhen Third People's Hospital, Shenzhen, Guangdong Province, People's Republic of China
| | - Kun Qiao
- Department of Thoracic Surgery, Shenzhen Third People's Hospital, Shenzhen, Guangdong Province, People's Republic of China
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10
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Liao W, Xiao H, He J, Huang L, Liao Y, Qin J, Yang Q, Ma F, Li S. B-Cell-Activating Factor Contributes to Elevation of the Content of Regulatory B Cells in Neonatal Sepsis. Bull Exp Biol Med 2023:10.1007/s10517-023-05814-1. [PMID: 37338768 DOI: 10.1007/s10517-023-05814-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Indexed: 06/21/2023]
Abstract
We studied the role of B cell-activating factor (BAFF) in PI3K/AKT/mTOR signaling pathway in promoting proliferation and maintaining survival of regulatory B lymphocytes (Breg) in newborns with sepsis. The peripheral blood samples were collected from preterm neonates (n=40) diagnosed with sepsis on the day of diagnosis and on days 7, 14, and 21 after diagnosis, as well as from the matched preterm neonates without sepsis (n=40; control group). The peripheral blood mononuclear cells and B cells were isolated, cultured, and stimulated with LPS and immunostimulant CpG-oligodeoxynucleotide (CpG-ODN). Proliferation and differentiation of B-cells into CD19+CD24hiCD38hi Breg cells and the role of the PI3K/AKT/mTOR signaling pathway in these processes were studied by flow cytometry, real-time quantitative reverse transcription PCR (qRT-PCR), and Western blotting. BAFF levels in the peripheral blood of neonates with sepsis were significantly increased at one week after diagnosis in parallel with increasing trend of expression of BAFF receptor. When applied with LPS and CpG-ODN, BAFF promoted differentiation of B cells into CD19+CD24hiCD38hi Breg cells. Phosphorylation of 4E-BP1 factor and 70S6K kinase located downstream in PI3K/AKT/mTOR signaling pathway was significantly up-regulated when stimulated with BAFF in combination with LPS and CpG-ODN. Thus, increased level of BAFF activates PI3K/AKT/mTOR signaling pathway and induces in vitro differentiation of peripheral blood B cells into CD19+CD24hiCD38hi Breg cells.
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Affiliation(s)
- W Liao
- Department of Pediatrics, Dongguan Houjie Hospital, Dongguan, China
| | - H Xiao
- Department of Pediatrics, Dongguan Houjie Hospital, Dongguan, China
| | - J He
- Department of Pediatrics, Dongguan Houjie Hospital, Dongguan, China
| | - L Huang
- Department of Pediatrics, Dongguan Houjie Hospital, Dongguan, China
| | - Y Liao
- Department of Pediatrics, Dongguan Houjie Hospital, Dongguan, China
| | - J Qin
- Department of Pediatrics, Dongguan Houjie Hospital, Dongguan, China
| | - Q Yang
- Department of Pediatrics, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - F Ma
- Department of Pediatrics, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - S Li
- Department of Pediatrics, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
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11
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Ji R, Li Y, Huang R, Xiong J, Wang X, Zhang X. Recent Advances and Research Progress in Biomarkers for Chronic Graft Versus Host Disease. Crit Rev Oncol Hematol 2023; 186:103993. [PMID: 37061073 DOI: 10.1016/j.critrevonc.2023.103993] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 03/24/2023] [Accepted: 04/11/2023] [Indexed: 04/17/2023] Open
Abstract
Chronic graft-versus host disease (cGVHD) is a major risk for patients undergoing allogeneic hematopoietic stem cell transplantation. With the emergence of novel therapies and the increased understanding of the mechanisms underlying cGVHD, there are more options for cGVHD treatment. Regardless of improvements in treatment, diagnosis mainly depends on identification of symptoms, which makes precise treatment a challenge. Numerous biomarkers for cGVHD have been validated and have demonstrated strong associations with prognosis and response to treatment. The most common biomarkers mainly include critical types of immune cells, chemokines, cytokines, microRNAs, and autoantibodies, all of which play important roles in the development of cGVHD. Compared to traditional tools, biomarkers have several advantages, for example, they can be applied for early diagnosis, to identify cGVHD risk before onset, and predict which therapy is most likely to benefit patients. In this review, we summarize biomarkers with potential clinical value and discuss future applications.
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Affiliation(s)
- Rui Ji
- Medical Center of Hematology, Xinqiao Hospital, State Key Laboratory of Trauma, Burn and Combined Injury, Army Medical University, Chongqing 400037, China
| | - Yue Li
- Medical Center of Hematology, Xinqiao Hospital, State Key Laboratory of Trauma, Burn and Combined Injury, Army Medical University, Chongqing 400037, China
| | - Ruihao Huang
- Medical Center of Hematology, Xinqiao Hospital, State Key Laboratory of Trauma, Burn and Combined Injury, Army Medical University, Chongqing 400037, China
| | - Jingkang Xiong
- Medical Center of Hematology, Xinqiao Hospital, State Key Laboratory of Trauma, Burn and Combined Injury, Army Medical University, Chongqing 400037, China
| | - Xiaoqi Wang
- Medical Center of Hematology, Xinqiao Hospital, State Key Laboratory of Trauma, Burn and Combined Injury, Army Medical University, Chongqing 400037, China.
| | - Xi Zhang
- Medical Center of Hematology, Xinqiao Hospital, State Key Laboratory of Trauma, Burn and Combined Injury, Army Medical University, Chongqing 400037, China; Jinfeng Laboratory, Chongqing 400037, China.
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12
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Laumont CM, Nelson BH. B cells in the tumor microenvironment: Multi-faceted organizers, regulators, and effectors of anti-tumor immunity. Cancer Cell 2023; 41:466-489. [PMID: 36917951 DOI: 10.1016/j.ccell.2023.02.017] [Citation(s) in RCA: 25] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 02/11/2023] [Accepted: 02/12/2023] [Indexed: 03/14/2023]
Abstract
Our understanding of tumor-infiltrating lymphocytes (TILs) is rapidly expanding beyond T cell-centric perspectives to include B cells and plasma cells, collectively referred to as TIL-Bs. In many cancers, TIL-Bs carry strong prognostic significance and are emerging as key predictors of response to immune checkpoint inhibitors. TIL-Bs can perform multiple functions, including antigen presentation and antibody production, which allow them to focus immune responses on cognate antigen to support both T cell responses and innate mechanisms involving complement, macrophages, and natural killer cells. In the stroma of the most immunologically "hot" tumors, TIL-Bs are prominent components of tertiary lymphoid structures, which resemble lymph nodes structurally and functionally. Additionally, TIL-Bs participate in a variety of other lympho-myeloid aggregates and engage in dynamic interactions with the tumor stroma. Here, we summarize our current understanding of TIL-Bs in human cancer, highlighting the compelling therapeutic opportunities offered by their unique tumor recognition and effector mechanisms.
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Affiliation(s)
- Céline M Laumont
- Deeley Research Centre, BC Cancer, Victoria, BC V8R 6V5, Canada; Department of Medical Genetics, University of British Columbia, Vancouver, BC V6T 1Z3, Canada
| | - Brad H Nelson
- Deeley Research Centre, BC Cancer, Victoria, BC V8R 6V5, Canada; Department of Medical Genetics, University of British Columbia, Vancouver, BC V6T 1Z3, Canada; Department of Biochemistry and Microbiology, University of Victoria, Victoria, BC V8P 3E6, Canada.
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13
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Abstract
Immuno-oncology has traditionally focused on the cellular arm of the adaptive immune response, while attributing tumor-promoting activity to humoral responses in tumor-bearing hosts. This view stems from mouse models that do not necessarily recapitulate the antibody response process consistently observed in most human cancers. In recent years, the field has reconsidered the coordinated action of T and B cell responses in the context of anti-tumor immunity, as in any other immune response. Thus, recent studies in human cancer identify B cell responses with better outcome, typically in association with superior T cell responses. An area of particular interest is tertiary lymphoid structures, where germinal centers produce isotype switched antibodies and B cells and T lymphocytes interact with other immune cell types. The presence of these lymphoid structures is associated with better immunotherapeutic responses and remain poorly understood. Here, we discuss recent discoveries on how coordination between humoral and cellular responses is required for effective immune pressure against malignant progression, providing a perspective on the role of tertiary lymphoid structures and interventions to elicit their formation in unresectable tumors.
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Affiliation(s)
- Jose R Conejo-Garcia
- Department of Immunology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA.
| | - Subir Biswas
- Department of Immunology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA
| | - Ricardo Chaurio
- Department of Immunology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA
| | - Paulo C Rodriguez
- Department of Immunology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA
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14
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Sakai J, Yang J, Chou CK, Wu WW, Akkoyunlu M. B cell receptor-induced IL-10 production from neonatal mouse CD19 +CD43 - cells depends on STAT5-mediated IL-6 secretion. eLife 2023; 12:83561. [PMID: 36735294 PMCID: PMC9934864 DOI: 10.7554/elife.83561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 01/31/2023] [Indexed: 02/04/2023] Open
Abstract
Newborns are unable to reach the adult-level humoral immune response partly due to the potent immunoregulatory role of IL-10. Increased IL-10 production by neonatal B cells has been attributed to the larger population of IL-10-producting CD43+ B-1 cells in neonates. Here, we show that neonatal mouse CD43- non-B-1 cells also produce substantial amounts of IL-10 following B cell antigen receptor (BCR) activation. In neonatal mouse CD43- non-B-1 cells, BCR engagement activated STAT5 under the control of phosphorylated forms of signaling molecules Syk, Btk, PKC, FAK, and Rac1. Neonatal STAT5 activation led to IL-6 production, which in turn was responsible for IL-10 production in an autocrine/paracrine fashion through the activation of STAT3. In addition to the increased IL-6 production in response to BCR stimulation, elevated expression of IL-6Rα expression in neonatal B cells rendered them highly susceptible to IL-6-mediated STAT3 phosphorylation and IL-10 production. Finally, IL-10 secreted from neonatal mouse CD43- non-B-1 cells was sufficient to inhibit TNF-α secretion by macrophages. Our results unveil a distinct mechanism of IL-6-dependent IL-10 production in BCR-stimulated neonatal CD19+CD43- B cells.
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Affiliation(s)
- Jiro Sakai
- Laboratory of Bacterial Polysaccharides, Division of Bacterial Parasitic and Allergenic Products, Center for Biologics Evaluation and Research, The US Food and Drug AdministrationSilver SpringUnited States
| | - Jiyeon Yang
- Laboratory of Bacterial Polysaccharides, Division of Bacterial Parasitic and Allergenic Products, Center for Biologics Evaluation and Research, The US Food and Drug AdministrationSilver SpringUnited States
| | - Chao-Kai Chou
- Facility for Biotechnology Resources, Center for Biologics Evaluation and Research, United States Food and Drug AdministrationSilver SpringUnited States
| | - Wells W Wu
- Facility for Biotechnology Resources, Center for Biologics Evaluation and Research, United States Food and Drug AdministrationSilver SpringUnited States
| | - Mustafa Akkoyunlu
- Laboratory of Bacterial Polysaccharides, Division of Bacterial Parasitic and Allergenic Products, Center for Biologics Evaluation and Research, The US Food and Drug AdministrationSilver SpringUnited States
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15
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Wang C, Xu H, Gao R, Leng F, Huo F, Li Y, Liu S, Xu M, Bai J. CD19 +CD24 hiCD38 hi regulatory B cells deficiency revealed severity and poor prognosis in patients with sepsis. BMC Immunol 2022; 23:54. [PMID: 36357845 PMCID: PMC9648441 DOI: 10.1186/s12865-022-00528-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 10/20/2022] [Indexed: 11/12/2022] Open
Abstract
Background Sepsis still remains a major challenge in intensive care medicine with unacceptably high mortality among patients with septic shock. Due to current limitations of human CD19+CD24hiCD38hi Breg cells (Bregs) studies among sepsis, here, we tried to evaluate Bregs in severity and prognostic value in patients with sepsis. Methods Peripheral blood from 58 patients with sepsis and 22 healthy controls was analyzed using flow cytometry to evaluate the frequency and number of Bregs. All cases were divided into non-survived or survived group after 28 days followed up. Spearman's correlation analysis was performed on Bregs frequency and clinical indices. The area under the curve was acquired using the receiver operating characteristic analysis to assess the sensitivity and specificity of Bregs for outcome of sepsis. Survival curve analysis and binary logistic regression were applied to estimate the value of Bregs in prognosis among cases with sepsis. Results Sepsis patients had decreased proportions and number of Bregs. Sepsis patients with low frequency of Bregs were associated with an increased risk of septic shock. Bregs frequency is inversely associated with lactate, SOFA, and APACHE II and positively correlated with Tregs frequency. Low levels of Bregs closely correlated with septic outcomes. Numbers of Bregs were prediction factors for poor prognosis. Conclusions Frequency and number of Bregs decreased, and Bregs deficiency revealed poor prognosis in patients with sepsis. Supplementary Information The online version contains supplementary material available at 10.1186/s12865-022-00528-x.
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Affiliation(s)
- Chunmei Wang
- grid.89957.3a0000 0000 9255 8984Department of Emergency Medicine and Critical Care, Shanghai East Hospital, Nanjing Medical University, Nanjing, 211166 Jiangsu Province China ,grid.24516.340000000123704535Department of Emergency Medicine and Critical Care, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120 China
| | - Huihui Xu
- grid.9227.e0000000119573309Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China ,grid.410726.60000 0004 1797 8419University of Chinese Academy of Sciences, Beijing, China
| | - Rui Gao
- grid.452252.60000 0004 8342 692XDepartment of Respiratory and Critical Care Medicine, Affiliated Hospital of Jining Medical University, Jining, 272067 Shandong Province China
| | - Fengying Leng
- grid.24516.340000000123704535Department of Emergency Medicine and Critical Care, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120 China
| | - Fangjie Huo
- Department of Respiratory Medicine, Xi’an No. 4 Hospital, Xi’an, 710004 Shanxi Province China
| | - Yinzhen Li
- grid.24516.340000000123704535Department of Emergency Medicine and Critical Care, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120 China ,grid.24516.340000000123704535Medical School, Tongji University, Shanghai, 200120 China
| | - Siting Liu
- grid.24516.340000000123704535Department of Emergency Medicine and Critical Care, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120 China
| | - Mingzheng Xu
- grid.24516.340000000123704535Department of Emergency Medicine and Critical Care, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120 China
| | - Jianwen Bai
- grid.89957.3a0000 0000 9255 8984Department of Emergency Medicine and Critical Care, Shanghai East Hospital, Nanjing Medical University, Nanjing, 211166 Jiangsu Province China ,grid.24516.340000000123704535Department of Emergency Medicine and Critical Care, Shanghai East Hospital, Tongji University School of Medicine, 150 Jimo Road, Shanghai, 200120 China
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16
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Olaitan S, Wagstaff M, Sevim O, Akieme R, Toska V, Humphreys C, Shah-Goodwin L, Bell J, Chevassut T, Morgan RG. Assessment of mononuclear cell populations derived from human umbilical cord blood. Eur J Haematol 2022; 109:787-788. [PMID: 35993113 DOI: 10.1111/ejh.13846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 08/09/2022] [Accepted: 08/18/2022] [Indexed: 11/29/2022]
Affiliation(s)
- S Olaitan
- School of Life Sciences, University of Sussex, Brighton, UK
| | - M Wagstaff
- School of Life Sciences, University of Sussex, Brighton, UK
| | - O Sevim
- School of Life Sciences, University of Sussex, Brighton, UK
| | - R Akieme
- Royal Sussex County Hospital, University Hospitals Sussex NHS Foundation Trust, Brighton, UK
| | - V Toska
- Royal Sussex County Hospital, University Hospitals Sussex NHS Foundation Trust, Brighton, UK
| | - C Humphreys
- Royal Sussex County Hospital, University Hospitals Sussex NHS Foundation Trust, Brighton, UK
| | - L Shah-Goodwin
- Royal Sussex County Hospital, University Hospitals Sussex NHS Foundation Trust, Brighton, UK
| | - J Bell
- Royal Sussex County Hospital, University Hospitals Sussex NHS Foundation Trust, Brighton, UK
| | - T Chevassut
- Royal Sussex County Hospital, University Hospitals Sussex NHS Foundation Trust, Brighton, UK.,Brighton & Sussex Medical School, University of Sussex, Brighton, UK
| | - R G Morgan
- School of Life Sciences, University of Sussex, Brighton, UK
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17
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Agbogan VA, Gastineau P, Tejerina E, Karray S, Zavala F. CpG-Activated Regulatory B-Cell Progenitors Alleviate Murine Graft-Versus-Host-Disease. Front Immunol 2022; 13:790564. [PMID: 35479094 PMCID: PMC9035844 DOI: 10.3389/fimmu.2022.790564] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 03/21/2022] [Indexed: 11/13/2022] Open
Abstract
Development of Graft Versus Host Disease (GVHD) represents a major impediment in allogeneic hematopoietic stem cell transplantation (HSCT). The observation that the presence of bone marrow and circulating hematogones correlated with reduced GVHD risks prompted us to evaluate whether B-cell progenitors, which provide protection in various autoimmune disease models following activation with the TLR-9 agonist CpG (CpG-proBs), could likewise reduce this allogeneic disorder. In a murine model of GVHD that recapitulates an initial phase of acute GVHD followed by a phase of chronic sclerodermatous GVHD, we found that CpG-proBs, adoptively transferred during the initial phase of disease, reduced the diarrhea score and mostly prevented cutaneous fibrosis. Progenitors migrated to the draining lymph nodes and to the skin where they mainly differentiated into follicular B cells. CpG activation and IFN-γ expression were required for the protective effect, which resulted in reduced CD4+ T-cell-derived production of critical cytokines such as TGF-β, IL-13 and IL-21. Adoptive transfer of CpG-proBs increased the T follicular regulatory to T follicular helper (Tfr/Tfh) ratio. Moreover, CpG-proBs privileged the accumulation of IL-10-positive CD8+ T cells, B cells and dendritic cells in the skin. However, CpG-proBs did not improve survival. Altogether, our findings support the notion that adoptively transferred CpG-proBs exert immunomodulating effect that alleviates symptoms of GVHD but require additional anti-inflammatory strategy to improve survival.
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Affiliation(s)
- Viviane A. Agbogan
- Université Paris Cité, INSERM U1151, CNRS UMR8152, Institut Necker Enfants Malades (INEM), Paris, France
| | - Pauline Gastineau
- Université Paris Cité, INSERM U1151, CNRS UMR8152, Institut Necker Enfants Malades (INEM), Paris, France
| | - Emmanuel Tejerina
- Université Paris Cité, INSERM U1151, CNRS UMR8152, Institut Necker Enfants Malades (INEM), Paris, France
| | - Saoussen Karray
- Université Paris Cité, INSERM U976, Institut de Recherche Saint-Louis (IRSL), Hôpital Saint-Louis, Paris, France
| | - Flora Zavala
- Université Paris Cité, INSERM U1151, CNRS UMR8152, Institut Necker Enfants Malades (INEM), Paris, France
- *Correspondence: Flora Zavala, ; orcid.org/0000-0002-2338-6802
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18
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Flores-Borja F, Blair P. "Mechanisms of induction of regulatory B cells in the tumour microenvironment and their contribution to immunosuppression and pro-tumour responses". Clin Exp Immunol 2022; 209:33-45. [PMID: 35350071 PMCID: PMC9307227 DOI: 10.1093/cei/uxac029] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 03/08/2022] [Accepted: 03/25/2022] [Indexed: 12/05/2022] Open
Abstract
The presence of tumour-infiltrating immune cells was originally associated with the induction of anti-tumour responses and good a prognosis. A more refined characterization of the tumour microenvironment has challenged this original idea and evidence now exists pointing to a critical role for immune cells in the modulation of anti-tumour responses and the induction of a tolerant pro-tumour environment. The coordinated action of diverse immunosuppressive populations, both innate and adaptive, shapes a variety of pro-tumour responses leading to tumour progression and metastasis. Regulatory B cells have emerged as critical modulators and suppressors of anti-tumour responses. As reported in autoimmunity and infection studies, Bregs are a heterogeneous population with diverse phenotypes and different mechanisms of action. Here we review recent studies on Bregs from animal models and patients, covering a variety of types of cancer. We describe the heterogeneity of Bregs, the cellular interactions they make with other immune cells and the tumour itself, and their mechanism of suppression that enables tumour escape. We also discuss the potential therapeutic tools that may inhibit Bregs function and promote anti-tumour responses.
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Affiliation(s)
- Fabian Flores-Borja
- Centre for Immunobiology and Regenerative Medicine, Barts & The London School of Medicine and Dentistry, Queen Mary University of London, Blizard Institute, London
| | - Paul Blair
- Division of Infection & Immunity, Faculty of Medical Sciences, Department of Infection, Immunity, and Transplantation, University College London, London
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19
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Wu CY, Liang CH, Liang ZC. Enhanced production of fruiting bodies and bioactive compounds of Cordyceps militaris with grain substrates and cultivation patterns. J Taiwan Inst Chem Eng 2022. [DOI: 10.1016/j.jtice.2021.11.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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20
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Matute JD, Finander B, Pepin D, Ai X, Smith NP, Li JZ, Edlow AG, Villani AC, Lerou PH, Kalish BT. Single-cell immunophenotyping of the fetal immune response to maternal SARS-CoV-2 infection in late gestation. Pediatr Res 2022; 91:1090-1098. [PMID: 34750520 PMCID: PMC8573077 DOI: 10.1038/s41390-021-01793-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 08/31/2021] [Accepted: 09/28/2021] [Indexed: 02/01/2023]
Abstract
BACKGROUND During the COVID-19 pandemic, thousands of pregnant women have been infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The implications of maternal SARS-CoV-2 infection on fetal and childhood well-being need to be characterized. We aimed to characterize the fetal immune response to maternal SARS-CoV-2 infection. METHODS We performed single-cell RNA-sequencing and T cell receptor sequencing on cord blood mononuclear cells (CBMCs) from newborns of mothers infected with SARS-CoV-2 in the third trimester (cases) or without SARS-CoV-2 infection (controls). RESULTS We identified widespread gene expression changes in CBMCs from cases, including upregulation of interferon-stimulated genes and major histocompatibility complex genes in CD14+ monocytes, transcriptional changes suggestive of activation of plasmacytoid dendritic cells, and activation and exhaustion of natural killer cells. Lastly, we observed fetal T cell clonal expansion in cases compared to controls. CONCLUSIONS As none of the infants were infected with SARS-CoV-2, our results suggest that maternal SARS-CoV-2 infection might modulate the fetal immune system in the absence of vertical transmission. IMPACT The implications of maternal SARS-CoV-2 infection in the absence of vertical transmission on fetal and childhood well-being are poorly understood. Maternal SARS-CoV-2 infection might modulate the fetal immune system in the absence of vertical transmission. This study raises important questions about the untoward effects of maternal SARS-CoV-2 on the fetus, even in the absence of vertical transmission.
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Affiliation(s)
- Juan D. Matute
- grid.32224.350000 0004 0386 9924Division of Neonatology and Newborn Medicine, Department of Pediatrics, Massachusetts General Hospital (MGH), Boston, MA USA
| | - Benjamin Finander
- grid.2515.30000 0004 0378 8438Division of Newborn Medicine, Department of Pediatrics, Boston Children’s Hospital, Boston, MA USA
| | - David Pepin
- grid.32224.350000 0004 0386 9924Department of Pediatric Surgery, MGH, Boston, MA USA
| | - Xingbin Ai
- grid.32224.350000 0004 0386 9924Division of Neonatology and Newborn Medicine, Department of Pediatrics, Massachusetts General Hospital (MGH), Boston, MA USA
| | - Neal P. Smith
- grid.32224.350000 0004 0386 9924Department of Medicine, MGH, Boston, MA USA
| | - Jonathan Z. Li
- grid.62560.370000 0004 0378 8294Department of Medicine, Brigham and Women’s Hospital, Boston, MA USA
| | - Andrea G. Edlow
- grid.32224.350000 0004 0386 9924Department of Obstetrics and Gynecology, MGH, Boston, MA USA
| | | | - Paul H. Lerou
- grid.32224.350000 0004 0386 9924Division of Neonatology and Newborn Medicine, Department of Pediatrics, Massachusetts General Hospital (MGH), Boston, MA USA
| | - Brian T. Kalish
- grid.2515.30000 0004 0378 8438Division of Newborn Medicine, Department of Pediatrics, Boston Children’s Hospital, Boston, MA USA ,grid.42327.300000 0004 0473 9646Division of Neonatology, Department of Paediatrics, The Hospital for Sick Children, Toronto, ON Canada ,grid.17063.330000 0001 2157 2938Department of Molecular Genetics, University of Toronto, Toronto, ON Canada
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21
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Holm SR, Jenkins BJ, Cronin JG, Jones N, Thornton CA. A role for metabolism in determining neonatal immune function. Pediatr Allergy Immunol 2021; 32:1616-1628. [PMID: 34170575 DOI: 10.1111/pai.13583] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 05/19/2021] [Accepted: 06/03/2021] [Indexed: 01/04/2023]
Abstract
Immune responses of neonates differ markedly to those of adults, with skewed cytokine phenotypes, reduced inflammatory properties and drastically diminished memory function. Recent research efforts have started to unravel the role of cellular metabolism in determining immune cell fate and function. For studies in humans, much of the work on metabolic mechanisms underpinning innate and adaptive immune responses by different haematopoietic cell types is in adults. Studies investigating the contribution of metabolic adaptation in the unique setting of early life are just emerging, and much more work is needed to elucidate the contribution of metabolism to neonatal immune responses. Here, we discuss our current understanding of neonatal immune responses, examine some of the latest developments in neonatal immunometabolism and consider the possible role of altered metabolism to the distinctive immune phenotype of the neonate. Understanding the role of metabolism in regulating immune function at this critical stage in life has direct benefit for the child by affording opportunities to maximize immediate and long-term health. Additionally, gaining insight into the diversity of human immune function and naturally evolved immunometabolic strategies that modulate immune function could be harnessed for a wide range of opportunities including new therapeutic approaches.
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Affiliation(s)
- Sean R Holm
- Institute of Life Science, Swansea University Medical School, Swansea University, Swansea, UK
| | - Ben J Jenkins
- Institute of Life Science, Swansea University Medical School, Swansea University, Swansea, UK
| | - James G Cronin
- Institute of Life Science, Swansea University Medical School, Swansea University, Swansea, UK
| | - Nicholas Jones
- Institute of Life Science, Swansea University Medical School, Swansea University, Swansea, UK
| | - Catherine A Thornton
- Institute of Life Science, Swansea University Medical School, Swansea University, Swansea, UK
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22
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Zhu X, Tang B, Sun Z. Umbilical cord blood transplantation: Still growing and improving. Stem Cells Transl Med 2021; 10 Suppl 2:S62-S74. [PMID: 34724722 PMCID: PMC8560197 DOI: 10.1002/sctm.20-0495] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 03/05/2021] [Accepted: 03/13/2021] [Indexed: 12/26/2022] Open
Abstract
Umbilical cord blood transplantation (UCBT) has been performed in the clinic for over 30 years. The biological and immunological characteristics of umbilical cord blood (UCB) have been re-recognized in recent years. UCB, previously considered medical waste, is rich in hematopoietic stem cells (HSCs), which are naïve and more energetic and more easily expanded than other stem cells. UCB has been identified as a reliable source of HSCs for allogeneic hematopoietic stem cell transplantation (allo-HSCT). UCBT has several advantages over other methods, including no harm to mothers and donors, an off-the-shelf product for urgent use, less stringent HLA match, lower incidence and severity of chronic graft-vs-host disease (GVHD), and probably a stronger graft-vs-leukemia effect, especially for minimal residual disease-positive patients before transplant. Recent studies have shown that the outcome of UCBT has been improved and is comparable to other types of allo-HSCT. Currently, UCBT is widely used in malignant, nonmalignant, hematological, congenital and metabolic diseases. The number of UCB banks and transplantation procedures increased exponentially before 2013. However, the number of UCBTs increased steadily in Asia and China but decreased in the United States and Europe year-on-year from 2013 to 2019. In this review, we focus on the development of UCBT over the past 30 years, the challenges it faces and the strategies for future improvement, including increasing UCB numbers, cord blood unit selection, conditioning regimens and GVHD prophylaxis for UCBT, and management of complications of UCBT.
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Affiliation(s)
- Xiaoyu Zhu
- Department of Hematology, The First Affiliated Hospital of USTC, Division of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiPeople's Republic of China
- Blood and Cell Therapy Institute, Division of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiPeople's Republic of China
- Anhui Provincial Key Laboratory of Blood Research and ApplicationsHefeiPeople's Republic of China
| | - Baolin Tang
- Department of Hematology, The First Affiliated Hospital of USTC, Division of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiPeople's Republic of China
- Blood and Cell Therapy Institute, Division of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiPeople's Republic of China
- Anhui Provincial Key Laboratory of Blood Research and ApplicationsHefeiPeople's Republic of China
| | - Zimin Sun
- Department of Hematology, The First Affiliated Hospital of USTC, Division of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiPeople's Republic of China
- Blood and Cell Therapy Institute, Division of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiPeople's Republic of China
- Anhui Provincial Key Laboratory of Blood Research and ApplicationsHefeiPeople's Republic of China
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23
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Wu Y, Zhang Z, Tu M, Pan T, Ding P, Tang B, Wan X, Yao W, Song K, Sun G, Geng L, Qiang P, Liu H, Zhu X, Sun Z. Poor survival and prediction of prolonged isolated thrombocytopenia post umbilical cord blood transplantation in patients with hematological malignancies. Hematol Oncol 2021; 40:82-91. [PMID: 34664735 DOI: 10.1002/hon.2937] [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: 07/23/2021] [Revised: 10/05/2021] [Accepted: 10/16/2021] [Indexed: 11/10/2022]
Abstract
Prolonged isolated thrombocytopenia (PIT) is a common complication after umbilical cord blood transplantation (UCBT). However, data on PIT prediction and impacts on transplantation outcomes for UCBT patients are rare. We retrospectively analyzed 244 patients with hematological malignancies who received single-unit UCBT at the First Affiliated Hospital of USTC between August 2018 and December 2019. Among them, PIT occurred in 49 recipients, with a crude incidence of 20.1%. In the PIT patients, the 2-year cumulative incidence of transplant-related mortality (TRM) was significantly higher, and the probabilities of 2-year overall survival, leukemia-free survival and graft-versus-host disease (GVHD)-free relapse-free survival were significantly poorer (57.1% vs. 88.6%; 53.1% vs. 81.9%; 22.4% vs. 59.8%; p < 0.001), without remarkable increases in the cumulative incidence of relapse or chronic GVHD. Importantly, the multivariate analysis revealed that lower high-resolution HLA compatibility (≤6/10), lower infused CD34+ cell count (≤1.78 × 105 /kg), grade II-IV acute GVHD preplatelet engraftment, a lower pretransplantation platelet count (≤100 × 109 /L), and a longer neutrophil engraftment time (≥17 days) were independent risk factors for PIT after UCBT. These results demonstrate that PIT is common after UCBT, predicting inferior survival and the need for more monitoring during the early phase.
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Affiliation(s)
- Yue Wu
- Department of Hematology, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, China.,Anhui Provincial Key Laboratory of Blood Research and Applications, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.,Blood and Cell Therapy Institute, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Zhidan Zhang
- Department of Hematology, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, China.,Anhui Provincial Key Laboratory of Blood Research and Applications, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.,Blood and Cell Therapy Institute, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Meijuan Tu
- Department of Hematology, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, China
| | - Tianzhong Pan
- Department of Hematology, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, China.,Anhui Provincial Key Laboratory of Blood Research and Applications, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.,Blood and Cell Therapy Institute, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Peng Ding
- Department of Hematology, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, China.,Anhui Provincial Key Laboratory of Blood Research and Applications, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.,Blood and Cell Therapy Institute, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Baolin Tang
- Department of Hematology, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, China.,Anhui Provincial Key Laboratory of Blood Research and Applications, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.,Blood and Cell Therapy Institute, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Xiang Wan
- Department of Hematology, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, China.,Anhui Provincial Key Laboratory of Blood Research and Applications, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.,Blood and Cell Therapy Institute, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Wen Yao
- Department of Hematology, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, China
| | - Kaidi Song
- Department of Hematology, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, China
| | - Guangyu Sun
- Department of Hematology, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, China
| | - Liangquan Geng
- Department of Hematology, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, China
| | - Ping Qiang
- Department of Hematology, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, China
| | - Huilan Liu
- Department of Hematology, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, China.,Anhui Provincial Key Laboratory of Blood Research and Applications, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.,Blood and Cell Therapy Institute, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Xiaoyu Zhu
- Department of Hematology, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, China.,Anhui Provincial Key Laboratory of Blood Research and Applications, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.,Blood and Cell Therapy Institute, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Zimin Sun
- Department of Hematology, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, China.,Anhui Provincial Key Laboratory of Blood Research and Applications, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.,Blood and Cell Therapy Institute, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
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[Correlation between immune reconstitution and chronic graft-versus-host disease after unrelated cord blood transplantation and sibling peripheral blood stem cell transplantation]. ZHONGHUA XUE YE XUE ZA ZHI = ZHONGHUA XUEYEXUE ZAZHI 2021; 42:466-473. [PMID: 34384152 PMCID: PMC8295618 DOI: 10.3760/cma.j.issn.0253-2727.2021.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the relationship between the reconstitution of immune cells in patients with hematological malignancies and the occurrence of chronic graft-versus-host disease (cGVHD) after treatment with unrelated cord blood transplantation (UCBT) and sibling peripheral blood stem cell transplantation (PBSCT) . Methods: A total of 124 patients undergoing allogenic hematopoietic stem cell transplantation (allo-HSCT) in the First Affiliated Hospital of University of Science and Technology of China from March 2018 to August 2019, including 96 patients with UCBT and 28 patients with PBSCT. Peripheral blood immune cells of patients with UCBT and PBSCT were detected at 1, 3, 6, 9, and 12 months after transplantation using flow cytometry, and both UCBT and PBSCT patients were divided into cGVHD and non-cGVHD groups based on whether cGVHD occurred to explore the correlation between the immune cells reconstitution of the two types of transplantation and cGVHD. Results: ①The cumulative incidence of the moderate to severe cGVHD in the UCBT group was significantly lower than that in the PBSCT group[9.38% (95% CI 3.35%-15.02%) vs 28.57% (95% CI 9.72%-43.50%) , P=0.008]; the 2-year cumulative incidence of cGVHD and moderate to severe cGVHD in the UCBT group was lower than that in the PBSCT group[15.60% (95% CI 9.20%-23.60%) vs 32.10% (95% CI 15.80%-49.70%) , P=0.047; 10.40% (95% CI 5.30%-17.50%) vs 28.60% (95% CI 13.30%-46.00%) , P=0.014]. ②The absolute counts of CD4(+)T cells in the UCBT group were higher than those in the PBSCT group at 6, 9, and 12 months after transplantation[59.00 (36.70-89.65) ×10(7)/L vs 31.40 (18.10-44.00) ×10(7)/L, P<0.001; 71.30 (49.60-101.45) ×10(7)/L vs 41.60 (25.82-56.27) ×10(7)/L, P<0.001; 83.00 (50.17-121.55) ×10(7)/L vs 44.85 (31.62-62.10) ×10(7)/L, P<0.001]; the proportions of CD4(+)T cells in the UCBT group were always higher than those in the PBSCT group (P<0.05) . The absolute counts and proportions of B cells in the PBSCT group were higher than those in the UCBT group at the first month after transplantation[0.70 (0.30-1.70) ×10(7)/L vs 0.10 (0-0.30) ×10(7)/L, P<0.001; 0.45% (0.30%-2.20%) vs 0.20% (0.10%-0.40%) , P=0.002]; the absolute counts and proportions of B cells in the UCBT group were higher than those in the PBSCT group at 9 and 12 months after transplantation[53.80 (28.00-103.20) ×10(7)/L vs 23.35 (5.07-35.00) ×10(7)/L, P<0.001; 21.45 (11.80-30.45) % vs 9.00% (3.08%-16.73%) , P<0.001. 66.70 (36.97-98.72) ×10(7)/L vs 20.85 (7.72-39.40) ×10(7)/L, P<0.001; 22.20% (14.93%-29.68%) vs 8.75% (5.80%-18.93%) , P<0.001]. The absolute counts and proportions of regulatory B (Breg) cells in the UCBT group were higher than those in the PBSCT group at 6, 9, and 12 months after transplantation[1.23 (0.38-3.52) ×10(7)/L vs 0.05 (0-0.84) ×10(7)/L, P<0.001; 5.35% (1.90%-12.20%) vs 1.45% (0-7.78%) , P=0.002. 2.25 (1.07-6.71) ×10(7)/L vs 0.12 (0-0.77) ×10(7)/L, P<0.001; 6.25% (2.00%-12.33%) vs 0.80% (0-5.25%) , P<0.001. 3.69 (0.83-8.66) ×10(7)/L vs 0.46 (0-0.93) ×10(7)/L, P<0.001; 6.15% (1.63%-11.75%) vs 1.40% (0.18%-5.85%) , P<0.001].The absolute counts and proportions of CD3(+)T cells, CD8(+)T cells, and Treg cells in the UCBT group were not significantly different from those in the PBSCT group. ③The absolute counts of B cells in the non-cGVHD group of UCBT patients were higher than those in the moderate to severe cGVHD group at 6 and 12 months after transplantation (P=0.038, P=0.043) ; the proportions of B cells in the non-cGVHD group were higher than those in the moderate to severe cGVHD group at 6 months after transplantation (P=0.049) . The absolute counts of Breg cells in the non-cGVHD group of patients with UCBT were higher than those in the moderate to severe cGVHD group at 6, 9, and 12 months after transplantation (P=0.006, P=0.028, P=0.050) ; the proportions of Breg cells in the non-cGVHD group were higher than those in the moderate to severe cGVHD group at 9 months after transplantation (P=0.038) . ④The absolute counts and proportions of B and Breg cells in the non-cGVHD group of patients with PBSCT were not statistically different than those in the moderate to severe cGVHD group. Conclusion: In the process of immune cell reconstitution, the Breg cells in the UCBT group were higher than those in the PBSCT group, and the Breg cells in the non-cGVHD group of the two types of transplantation were always higher than those in the moderate to severe cGVHD group, indicating that Breg cells can reduce the occurrence of cGVHD, revealing the possible reason for the lower incidence of cGVHD in the UCBT group.
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25
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Inflammatory monocytes promote pre-engraftment syndrome and tocilizumab can therapeutically limit pathology in patients. Nat Commun 2021; 12:4137. [PMID: 34230468 PMCID: PMC8260612 DOI: 10.1038/s41467-021-24412-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 06/15/2021] [Indexed: 12/01/2022] Open
Abstract
Unrelated cord blood transplantation (UCBT) is an effective treatment for hematopoietic disorders. However, this attractive approach is frequently accompanied by pre-engraftment syndrome (PES), severe cases of PES are associated with enhanced mortality and morbidity, but the pathogenesis of PES remains unclear. Here we show that GM-CSF produced by cord blood-derived inflammatory monocytes drives PES pathology, and that monocytes are the main source of IL-6 during PES. Further, we report the outcome of a single arm, single-center clinical study of tocilizumab in the treatment of steroid-refractory severe PES patients (www.chictr.org.cn ChiCTR1800015472). The study met the primary outcome measure since none of the patients was nonrelapse death during the 100 days follow-up. The study also met key secondary outcomes measures of neutrophil engraftment and hematopoiesis. These findings offer a therapeutic strategy with which to tackle PES and improve nonrelapse mortality. Pre-engraftment syndrome is a major consideration during clinical application of unrelated cord blood transfusion and monocytes represent a critical cell type in immune-pathogenesis. Here the authors further establish the role of monocytes and GM-CSF in pre-engraftment syndrome and show clinical administration of tocilizumab limits pathology in pre-engraftment syndrome pathology in patients.
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26
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Hess NJ, S Bharadwaj N, Bobeck EA, McDougal CE, Ma S, Sauer JD, Hudson AW, Gumperz JE. iNKT cells coordinate immune pathways to enable engraftment in nonconditioned hosts. Life Sci Alliance 2021; 4:e202000999. [PMID: 34112724 PMCID: PMC8200291 DOI: 10.26508/lsa.202000999] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 05/27/2021] [Accepted: 05/28/2021] [Indexed: 01/05/2023] Open
Abstract
Invariant natural killer T (iNKT) cells are a conserved population of innate T lymphocytes that interact with key antigen-presenting cells to modulate adaptive T-cell responses in ways that can either promote protective immunity, or limit pathological immune activation. Understanding the immunological networks engaged by iNKT cells to mediate these opposing functions is a key pre-requisite to effectively using iNKT cells for therapeutic applications. Using a human umbilical cord blood xenotransplantation model, we show here that co-transplanted allogeneic CD4+ iNKT cells interact with monocytes and T cells in the graft to coordinate pro-hematopoietic and immunoregulatory pathways. The nexus of iNKT cells, monocytes, and cord blood T cells led to the release of cytokines (IL-3, GM-CSF) that enhance hematopoietic stem and progenitor cell activity, and concurrently induced PGE2-mediated suppression of T-cell inflammatory responses that limit hematopoietic stem and progenitor cell engraftment. This resulted in successful long-term hematopoietic engraftment without pretransplant conditioning, including multi-lineage human chimerism and colonization of the spleen by antibody-producing human B cells. These results highlight the potential for using iNKT cellular immunotherapy to improve rates of hematopoietic engraftment independently of pretransplant conditioning.
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Affiliation(s)
- Nicholas J Hess
- Department of Medical Microbiology and Immunology, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Nikhila S Bharadwaj
- Department of Medical Microbiology and Immunology, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Elizabeth A Bobeck
- Department of Animal Science, 201F Kildee Hall, Iowa State University, Ames, IA, USA
| | - Courtney E McDougal
- Department of Medical Microbiology and Immunology, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Shidong Ma
- QLB Biotherapeutics, Inc., Boston, MA, USA
| | - John-Demian Sauer
- Department of Medical Microbiology and Immunology, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Amy W Hudson
- Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Jenny E Gumperz
- Department of Medical Microbiology and Immunology, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
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27
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Qin ZZ, Ruan J, Lee MR, Sun K, Chen P, Chen Y, Hong M, Xia LH, Fang J, Tang H. Mangiferin Promotes Bregs Level, Activates Nrf2 Antioxidant Signaling, and Inhibits Proinflammatory Cytokine Expression in Murine Splenic Mononuclear Cells In Vitro. Curr Med Sci 2021; 41:454-464. [PMID: 34129203 DOI: 10.1007/s11596-021-2371-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 05/26/2021] [Indexed: 01/16/2023]
Abstract
Recent studies indicated that regulatory B cells (Bregs) and nuclear factor erythroid 2-related factor 2 (Nrf2) antioxidant signaling pathway play important roles in the pathogenesis of chronic graft-versus-host disease (cGVHD). Mangiferin (MA), a polyphenol compound, has been reported to activate Nrf2/antioxidant-responsive element (ARE) signaling pathway. This study was aimed to investigate the effects of MA on Bregs and Nrf2 antioxidant signaling in murine splenic mononuclear cells (MNCs) in vitro. Our results revealed that MA could increase the Bregs level in murine splenic MNCs. Moreover, MA up-regulated the expression of Bregs-associated immunosuppressive factor interleukin-10 (IL-10) by activating the Janus kinase 2 (JAK2)/signal transducer and activator of transcription 3 (STAT3) and extracellular signal-regulated kinase (ERK) signaling in murine splenic MNCs. Meanwhile, MA inhibited the proinflammatory cytokines IL-2 and interferon-γ (INF-γ) at both mRNA and protein levels. MA also enhanced the transcription and protein expression of Nrf2 and NADPH quinine oxidoreductase 1 (NQO1), whereas decreased that of Kelch-like ECH-associated protein 1 (Keap1) in murine splenic MNCs. Moreover, MA promoted the proliferation and inhibited the apoptosis of murine splenic MNCs. These results suggested that MA exerts immunosuppressive effects by upregulating the Bregs level, activating the Nrf2 antioxidant pathway, and inhibiting the expression of pro-immunoinflammatory factors. MA, as a natural immunomodulatory and anti-inflammatory agent, may have a potential role in the prophylaxis and treatment of cGVHD.
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Affiliation(s)
- Zhi-Zhi Qin
- Department of Hematology, Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.,Department of Hematology, Huaihe Hospital of Henan University, Kaifeng, 475000, China
| | - Jun Ruan
- Department of Hematology, Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.,Department of Gastroenterology, Wuhan Resources & Wisco General Hospital, Wuhan, 430080, China
| | - Meng-Ran Lee
- Department of Hematology, Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Kang Sun
- Department of Hematology, Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Ping Chen
- Department of Hematology, Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Yan Chen
- Department of Hematology, Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Mei Hong
- Department of Hematology, Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.,Collaborative Innovation Center of Hematology, Soochow University, Suzhou, 215000, China
| | - Ling-Hui Xia
- Department of Hematology, Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Jun Fang
- Department of Hematology, Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
| | - Hao Tang
- Department of Cardiovascular Surgery, Zhongnan Hospital, Wuhan University, Wuhan, 430071, China.
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28
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Cord-Blood-Derived Professional Antigen-Presenting Cells: Functions and Applications in Current and Prospective Cell Therapies. Int J Mol Sci 2021; 22:ijms22115923. [PMID: 34072923 PMCID: PMC8199409 DOI: 10.3390/ijms22115923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 05/28/2021] [Accepted: 05/28/2021] [Indexed: 11/21/2022] Open
Abstract
Human umbilical cord blood (UCB) represents a valuable source of hematopoietic stem cells, particularly for patients lacking a matching donor. UCB provides practical advantages, including a lower risk of graft-versus-host-disease and permissive human leukocyte antigen mismatching. These advantageous properties have so far been applied for stem cell, mesenchymal stromal cell, and chimeric antigen receptor T cell therapies. However, UCB-derived professional antigen-presenting cells are increasingly being utilized in the context of immune tolerance and regenerative therapy. Here, we review the cell-specific characteristics as well as recent advancements in UCB-based cell therapies focusing on dendritic cells, monocytes, B lymphocytes, innate lymphoid cells, and macrophages.
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29
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Catalán D, Mansilla MA, Ferrier A, Soto L, Oleinika K, Aguillón JC, Aravena O. Immunosuppressive Mechanisms of Regulatory B Cells. Front Immunol 2021; 12:611795. [PMID: 33995344 PMCID: PMC8118522 DOI: 10.3389/fimmu.2021.611795] [Citation(s) in RCA: 130] [Impact Index Per Article: 43.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 02/19/2021] [Indexed: 12/12/2022] Open
Abstract
Regulatory B cells (Bregs) is a term that encompasses all B cells that act to suppress immune responses. Bregs contribute to the maintenance of tolerance, limiting ongoing immune responses and reestablishing immune homeostasis. The important role of Bregs in restraining the pathology associated with exacerbated inflammatory responses in autoimmunity and graft rejection has been consistently demonstrated, while more recent studies have suggested a role for this population in other immune-related conditions, such as infections, allergy, cancer, and chronic metabolic diseases. Initial studies identified IL-10 as the hallmark of Breg function; nevertheless, the past decade has seen the discovery of other molecules utilized by human and murine B cells to regulate immune responses. This new arsenal includes other anti-inflammatory cytokines such IL-35 and TGF-β, as well as cell surface proteins like CD1d and PD-L1. In this review, we examine the main suppressive mechanisms employed by these novel Breg populations. We also discuss recent evidence that helps to unravel previously unknown aspects of the phenotype, development, activation, and function of IL-10-producing Bregs, incorporating an overview on those questions that remain obscure.
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Affiliation(s)
- Diego Catalán
- Programa Disciplinario de Inmunología, Facultad de Medicina, Instituto de Ciencias Biomédicas (ICBM), Universidad de Chile, Santiago, Chile.,Instituto Milenio en Inmunología e Inmunoterapia, Santiago, Chile
| | - Miguel Andrés Mansilla
- Programa Disciplinario de Inmunología, Facultad de Medicina, Instituto de Ciencias Biomédicas (ICBM), Universidad de Chile, Santiago, Chile
| | - Ashley Ferrier
- Programa Disciplinario de Inmunología, Facultad de Medicina, Instituto de Ciencias Biomédicas (ICBM), Universidad de Chile, Santiago, Chile.,Instituto Milenio en Inmunología e Inmunoterapia, Santiago, Chile
| | - Lilian Soto
- Programa Disciplinario de Inmunología, Facultad de Medicina, Instituto de Ciencias Biomédicas (ICBM), Universidad de Chile, Santiago, Chile.,Unidad de Dolor, Hospital Clínico, Universidad de Chile (HCUCH), Santiago, Chile
| | | | - Juan Carlos Aguillón
- Programa Disciplinario de Inmunología, Facultad de Medicina, Instituto de Ciencias Biomédicas (ICBM), Universidad de Chile, Santiago, Chile
| | - Octavio Aravena
- Programa Disciplinario de Inmunología, Facultad de Medicina, Instituto de Ciencias Biomédicas (ICBM), Universidad de Chile, Santiago, Chile
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30
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Cherukuri A, Mohib K, Rothstein DM. Regulatory B cells: TIM-1, transplant tolerance, and rejection. Immunol Rev 2021; 299:31-44. [PMID: 33484008 PMCID: PMC7968891 DOI: 10.1111/imr.12933] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 11/11/2020] [Indexed: 12/17/2022]
Abstract
Regulatory B cells (Bregs) ameliorate autoimmune disease and prevent allograft rejection. Conversely, they hinder effective clearance of pathogens and malignancies. Breg activity is mainly attributed to IL-10 expression, but also utilizes additional regulatory mechanisms such as TGF-β, FasL, IL-35, and TIGIT. Although Bregs are present in various subsets defined by phenotypic markers (including canonical B cell subsets), our understanding of Bregs has been limited by the lack of a broadly inclusive and specific phenotypic or transcriptional marker. TIM-1, a broad marker for Bregs first identified in transplant models, plays a major role in Breg maintenance and induction. Here, we expand on the role of TIM-1+ Bregs in immune tolerance and propose TIM-1 as a unifying marker for Bregs that utilize various inhibitory mechanisms in addition to IL-10. Further, this review provides an in-depth assessment of our understanding of Bregs in transplantation as elucidated in murine models and clinical studies. These studies highlight the major contribution of Bregs in preventing allograft rejection, and their ability to serve as highly predictive biomarkers for clinical transplant outcomes.
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Affiliation(s)
- Aravind Cherukuri
- Thomas E. Starzl Transplantation Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.,Renal and Electrolyte Division, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Kanishka Mohib
- Thomas E. Starzl Transplantation Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - David M Rothstein
- Thomas E. Starzl Transplantation Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
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31
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Chekol Abebe E, Asmamaw Dejenie T, Mengie Ayele T, Dagnew Baye N, Agegnehu Teshome A, Tilahun Muche Z. The Role of Regulatory B Cells in Health and Diseases: A Systemic Review. J Inflamm Res 2021; 14:75-84. [PMID: 33469337 PMCID: PMC7811483 DOI: 10.2147/jir.s286426] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 12/31/2020] [Indexed: 12/26/2022] Open
Abstract
Equivalent to regulatory T cells, a novel B cell populace, called regulatory B cells (Bregs), has been found to exert a negative immune regulatory role. These subsets of cells account for 0.5% of human B cells from the periphery that expand after activation upon certain stimuli depending on the nature of the microenvironment and provide a variety of Breg cell phenotypes. The increasing number of suppressive mechanisms attributed to Bregs suggests that these immune cells play many roles in immune regulation. Bregs have been confirmed to play a role in host defense mechanisms of healthy individuals as well as they play pathologic and protective roles in diseases or other conditions. Accumulating evidence reported that Bregs have a role in autoimmune and infectious diseases to lower inflammation, and in cancer to attenuate antitumor immune responses, thereby to promote cancer growth and metastasis. More recently, Bregs are also found to be involved in conditions like transplantation for transplant tolerance, during pregnancy to create an immune-privileged uterine environment and during early neonate life. Herein, the review summarizes recent findings aimed to provide understanding on the Breg cells, in the hope to gain insight on the general overview, development, mechanism of activation, and action of Bregs as well as their potential roles in health and diseases.
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Affiliation(s)
- Endeshaw Chekol Abebe
- Department of Biochemistry, College of Health Sciences, Debre Tabor University, Debre Tabor, Ethiopia
| | - Tadesse Asmamaw Dejenie
- Department of Biochemistry, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Teklie Mengie Ayele
- Department of Pharmacy, College of Health Sciences, Debre Tabor University, Debre Tabor, Ethiopia
| | - Nega Dagnew Baye
- Department of Human Anatomy, College of Health Sciences, Debre Tabor University, Debre Tabor, Ethiopia
| | - Assefa Agegnehu Teshome
- Department of Human Anatomy, College of Health Sciences, Debre Tabor University, Debre Tabor, Ethiopia
| | - Zelalem Tilahun Muche
- Department of Physiology, College of Health Sciences, Debre Tabor University, Debre Tabor, Ethiopia
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32
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Hill GR, Betts BC, Tkachev V, Kean LS, Blazar BR. Current Concepts and Advances in Graft-Versus-Host Disease Immunology. Annu Rev Immunol 2021; 39:19-49. [PMID: 33428454 DOI: 10.1146/annurev-immunol-102119-073227] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Worldwide, each year over 30,000 patients undergo an allogeneic hema-topoietic stem cell transplantation with the intent to cure high-risk hematologic malignancy, immunodeficiency, metabolic disease, or a life-threatening bone marrow failure syndrome. Despite substantial advances in donor selection and conditioning regimens and greater availability of allograft sources, transplant recipients still endure the morbidity and mortality of graft-versus-host disease (GVHD). Herein, we identify key aspects of acute and chronic GVHD pathophysiology, including host/donor cell effectors, gut dysbiosis, immune system and cytokine imbalance, and the interface between inflammation and tissue fibrosis. In particular, we also summarize the translational application of this heightened understanding of immune dysregulation in the design of novel therapies to prevent and treat GVHD.
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Affiliation(s)
- Geoffrey R Hill
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington 98109, USA; .,Division of Medical Oncology University of Washington, Seattle, Washington 98109, USA
| | - Brian C Betts
- Division of Hematology, Oncology, and Blood and Marrow Transplantation, Department of Medicine, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - Victor Tkachev
- Division of Pediatric Hematology/Oncology, Boston Children's Hospital, Boston, MA 02115, USA; , .,Department of Medical Oncology, Dana Farber Cancer Institute, Boston, MA 02215, USA.,Department of Pediatrics, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Leslie S Kean
- Division of Pediatric Hematology/Oncology, Boston Children's Hospital, Boston, MA 02115, USA; , .,Department of Medical Oncology, Dana Farber Cancer Institute, Boston, MA 02215, USA.,Department of Pediatrics, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Bruce R Blazar
- Division of Blood and Marrow Transplantation, Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota 55455, USA;
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33
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Michaud D, Steward CR, Mirlekar B, Pylayeva-Gupta Y. Regulatory B cells in cancer. Immunol Rev 2021; 299:74-92. [PMID: 33368346 PMCID: PMC7965344 DOI: 10.1111/imr.12939] [Citation(s) in RCA: 75] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 11/25/2020] [Accepted: 12/04/2020] [Indexed: 12/12/2022]
Abstract
Tumorigenesis proceeds through discrete steps where acquisition of genetic lesions and changes in the surrounding microenvironment combine to drive unrestricted neoplastic proliferation and metastasis. The ability of tumor-infiltrating immune cells to promote tumor growth via the provision of signals that enable tumor cell survival and proliferation as well as contribute to immune suppression is an active area of research. Recent efforts have provided us with mechanistic insights into how B cells can positively and negatively regulate immune responses. Negative regulation of immune responses in cancer can be mediated by regulatory B cells and is often a result of increased production of cytokines that can directly and indirectly affect anti-tumor immune function and cancer cell growth. Signals that lead to the expansion of regulatory B cells and the spectrum of their functional roles are not well understood and are the subject of active research by many groups. Here, we elaborate broadly on the history of regulatory B cells in cancer and summarize recent studies that have established genetic models for the study of regulatory B cell function and their potential for therapeutic intervention in the setting of solid cancers.
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Affiliation(s)
- Daniel Michaud
- Lineberger Comprehensive Cancer Center, The University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, North Carolina, USA
- Department of Cell Biology and Physiology, The University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, North Carolina, USA
| | - Colleen R Steward
- Lineberger Comprehensive Cancer Center, The University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, North Carolina, USA
- Department of Microbiology and Immunology, The University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, North Carolina, USA
| | - Bhalchandra Mirlekar
- Lineberger Comprehensive Cancer Center, The University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, North Carolina, USA
- Department of Genetics, The University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, North Carolina, USA
| | - Yuliya Pylayeva-Gupta
- Lineberger Comprehensive Cancer Center, The University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, North Carolina, USA
- Department of Genetics, The University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, North Carolina, USA
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Conejo-Garcia JR, Biswas S, Chaurio R. Humoral immune responses: Unsung heroes of the war on cancer. Semin Immunol 2020; 49:101419. [PMID: 33183950 DOI: 10.1016/j.smim.2020.101419] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 10/23/2020] [Accepted: 10/30/2020] [Indexed: 02/07/2023]
Abstract
Solid cancers progress from primordial lesions through complex interactions between tumor-promoting and anti-tumor immune cell types, ultimately leading to the orchestration of humoral and T cell adaptive immune responses, albeit in an immunosuppressive environment. B cells infiltrating most established tumors have been associated with a dual role: Some studies have associated antibodies produced by tumor-associated B cells with the promotion of regulatory activities on myeloid cells, and also with direct immunosuppression through the production of IL-10, IL-35 or TGF-β. In contrast, recent studies in multiple human malignancies identify B cell responses with delayed malignant progression and coordinated T cell protective responses. This includes the elusive role of Tertiary Lymphoid Structures identified in many human tumors, where the function of B cells remains unknown. Here, we discuss emerging data on the dual role of B cell responses in the pathophysiology of human cancer, providing a perspective on future directions and possible novel interventions to restore the coordinated action of both branches of the adaptive immune response, with the goal of maximizing immunotherapeutic effectiveness.
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Affiliation(s)
- Jose R Conejo-Garcia
- Department of Immunology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA.
| | - Subir Biswas
- Department of Immunology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA
| | - Ricardo Chaurio
- Department of Immunology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA
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35
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Beckett J, Hester J, Issa F, Shankar S. Regulatory B cells in transplantation: roadmaps to clinic. Transpl Int 2020; 33:1353-1368. [PMID: 32725703 DOI: 10.1111/tri.13706] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 06/08/2020] [Accepted: 07/23/2020] [Indexed: 12/16/2022]
Abstract
Over the last two decades, an additional and important role for B cells has been established in immune regulation. Preclinical studies demonstrate that regulatory B cells (Breg) can prolong allograft survival in animal models and induce regulatory T cells. Operationally tolerant human kidney transplant recipients demonstrate B-cell-associated gene signatures of immune tolerance, and novel therapeutic agents can induce Bregs in phase I clinical trials in transplantation. Our rapidly expanding appreciation of this novel B-cell subtype has made the road to clinical application a reality. Here, we outline several translational pathways by which Bregs could soon be introduced to the transplant clinic.
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Affiliation(s)
- Joseph Beckett
- Transplant Research and Immunology Group, Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Joanna Hester
- Transplant Research and Immunology Group, Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Fadi Issa
- Transplant Research and Immunology Group, Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Sushma Shankar
- Transplant Research and Immunology Group, Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
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36
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Yong X, Peng Y, Liu Z, Li Q, Lai Y, Wu T, Tao R. Analysis of serum and salivary cytokines among patients with oral cGVHD after Allo-HSCT. Oral Dis 2020; 27:1320-1324. [PMID: 33007140 DOI: 10.1111/odi.13658] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Revised: 08/07/2020] [Accepted: 09/17/2020] [Indexed: 12/13/2022]
Affiliation(s)
- Xiangzhi Yong
- Department of Periodontics and Oral Medicine, College of Stomatology, Guangxi Medical University, Guangxi, China.,Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, Guangxi Universities and Colleges Key Laboratory of Oral and Maxillofacial Surgery Disease Treatment, Guangxi Clinical Research Center for Craniofacial Deformity, Guangxi, China.,Guangxi Key Laboratory of AIDS Prevention and Treatment, Guangxi Medical University, Guangxi, China
| | - Yan Peng
- Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, Guangxi Universities and Colleges Key Laboratory of Oral and Maxillofacial Surgery Disease Treatment, Guangxi Clinical Research Center for Craniofacial Deformity, Guangxi, China.,Guilin Medical University, Guilin, China
| | - Zhenmin Liu
- Department of Periodontics and Oral Medicine, College of Stomatology, Guangxi Medical University, Guangxi, China.,Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, Guangxi Universities and Colleges Key Laboratory of Oral and Maxillofacial Surgery Disease Treatment, Guangxi Clinical Research Center for Craniofacial Deformity, Guangxi, China.,Guangxi Key Laboratory of AIDS Prevention and Treatment, Guangxi Medical University, Guangxi, China
| | - Qiaochuan Li
- Department of Hematology, The First Affiliated Hospital, Guangxi Medical University, Guangxi, China
| | - Yongrong Lai
- Department of Hematology, The First Affiliated Hospital, Guangxi Medical University, Guangxi, China
| | - Tiantian Wu
- Department of Periodontics and Oral Medicine, College of Stomatology, Guangxi Medical University, Guangxi, China.,Guangxi Key Laboratory of AIDS Prevention and Treatment, Guangxi Medical University, Guangxi, China
| | - Renchuan Tao
- Department of Periodontics and Oral Medicine, College of Stomatology, Guangxi Medical University, Guangxi, China.,Guangxi Key Laboratory of Oral and Maxillofacial Rehabilitation and Reconstruction, Guangxi Universities and Colleges Key Laboratory of Oral and Maxillofacial Surgery Disease Treatment, Guangxi Clinical Research Center for Craniofacial Deformity, Guangxi, China.,Guangxi Key Laboratory of AIDS Prevention and Treatment, Guangxi Medical University, Guangxi, China
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Rackaityte E, Halkias J. Mechanisms of Fetal T Cell Tolerance and Immune Regulation. Front Immunol 2020; 11:588. [PMID: 32328065 PMCID: PMC7160249 DOI: 10.3389/fimmu.2020.00588] [Citation(s) in RCA: 79] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 03/13/2020] [Indexed: 12/19/2022] Open
Abstract
The developing human fetus generates both tolerogenic and protective immune responses in response to the unique requirements of gestation. Thus, a successful human pregnancy depends on a fine balance between two opposing immunological forces: the semi-allogeneic fetus learns to tolerate both self- and maternal- antigens and, in parallel, develops protective immunity in preparation for birth. This critical window of immune development bridges prenatal immune tolerance with the need for postnatal environmental protection, resulting in a vulnerable neonatal period with heightened risk of infection. The fetal immune system is highly specialized to mediate this transition and thus serves a different function from that of the adult. Adaptive immune memory is already evident in the fetal intestine. Fetal T cells with pro-inflammatory potential are born in a tolerogenic environment and are tightly controlled by both cell-intrinsic and -extrinsic mechanisms, suggesting that compartmentalization and specialization, rather than immaturity, define the fetal immune system. Dysregulation of fetal tolerance generates an inflammatory response with deleterious effects to the pregnancy. This review aims to discuss the recent advances in our understanding of the cellular and molecular composition of fetal adaptive immunity and the mechanisms that govern T cell development and function. We also discuss the tolerance promoting environment that impacts fetal immunity and the consequences of its breakdown. A greater understanding of fetal mechanisms of immune activation and regulation has the potential to uncover novel paradigms of immune balance which may be leveraged to develop therapies for transplantation, autoimmune disease, and birth-associated inflammatory pathologies.
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Affiliation(s)
- Elze Rackaityte
- Biomedical Sciences Graduate Program, University of California, San Francisco, San Francisco, CA, United States
| | - Joanna Halkias
- Division of Neonatology, Department of Pediatrics, University of California, San Francisco, San Francisco, CA, United States
- Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, UCSF, San Francisco, CA, United States
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38
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A novel immature natural killer cell subpopulation predicts relapse after cord blood transplantation. Blood Adv 2019; 3:4117-4130. [PMID: 31821460 PMCID: PMC6963241 DOI: 10.1182/bloodadvances.2019000835] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Accepted: 10/24/2019] [Indexed: 02/06/2023] Open
Abstract
Natural killer (NK) cells are highly heterogeneous, with vast phenotypic and functional diversity at the single-cell level. They are involved in the innate immune response against malignant and virus-infected cells. To understand the effect of NK diversity during immune recovery on the antitumor response after cord blood transplantation (CBT), we used high-dimensional mass cytometry and the metrics of NK cell diversity to study the NK cell repertoire in serial samples from 43 CBT recipients. A higher-diversity index based on single-cell combinatorial phenotypes was significantly associated with a lower risk for relapse after CBT (P = .005). Cytomegalovirus reactivation was a major factor in the development of a more diverse NK repertoire after CBT. Notably, we identified a group of patients whose CB-derived NK cells after transplantation possessed an immature phenotype (CB-NKim), characterized by poor effector function and a low diversity index. Frequencies of CB-NKim of 11.8% or higher during the early post-CBT recovery phase were highly predictive for relapse (area under the curve [AUC], 0.979), a finding that was validated in a second independent cohort of patients (n = 25; AUC, 0.977). Moreover, we showed that the maturation, diversity, and acquisition of effector function by CB-NKim early after CBT were driven by interleukin 15. Our data indicate that the diversity of the NK cell repertoire after CBT contributes importantly to the risk for subsequent relapse. We suggest that the use of diversity metrics and high-dimensional mass cytometry may be useful tools in predicting clinical outcomes and informing the design of therapeutic strategies to prevent relapse after CBT.
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Misra RS, Nayak JL. The Importance of Vaccinating Children and Pregnant Women against Influenza Virus Infection. Pathogens 2019; 8:pathogens8040265. [PMID: 31779153 PMCID: PMC6963306 DOI: 10.3390/pathogens8040265] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 11/20/2019] [Accepted: 11/22/2019] [Indexed: 12/21/2022] Open
Abstract
Influenza virus infection is responsible for significant morbidity and mortality in the pediatric and pregnant women populations, with deaths frequently caused by severe influenza-associated lower respiratory tract infection and acute respiratory distress syndrome (ARDS). An appropriate immune response requires controlling the viral infection through activation of antiviral defenses, which involves cells of the lung and immune system. High levels of viral infection or high levels of inflammation in the lower airways can contribute to ARDS. Pregnant women and young children, especially those born prematurely, may develop serious complications if infected with influenza virus. Vaccination against influenza will lead to lower infection rates and fewer complications, even if the vaccine is poorly matched to circulating viral strains, with maternal vaccination offering infants protection via antibody transmission through the placenta and breast milk. Despite the health benefits of the influenza vaccine, vaccination rates around the world remain well below targets. Trust in the use of vaccines among the public must be restored in order to increase vaccination rates and decrease the public health burden of influenza.
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Affiliation(s)
- Ravi S Misra
- Department of Pediatrics Division of Neonatology, The University of Rochester Medical Center, Rochester, NY 14623, USA
- Correspondence:
| | - Jennifer L Nayak
- Department of Pediatrics Division of Pediatric Infectious Diseases, The University of Rochester Medical Center, Rochester, NY 14623, USA;
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40
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Yano A. IL-10-Producing Potential Treg Precursor in Placenta. Kurume Med J 2019; 65:169-176. [PMID: 31723081 DOI: 10.2739/kurumemedj.ms654008] [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: 11/23/2022]
Abstract
The maternal immune system needs to be tolerant of allogeneic fetal tissue for reproductive success. The regulatory immune cell network plays an essential role in maintaining maternal tolerance to the fetus. We herein demonstrate in a green fluorescent protein (GFP)/IL-10 reporter mouse system that unique IL-10-expressing cells exist presumably in chorionic villi within the placenta. Flow cytometric analysis revealed that these IL-10- expressing cells exhibit a unique CD19 negative, CD3 negative, and B220 positive phenotype. Interestingly, these cells were enriched during in vitro culture, but well-known stimuli for T cells and B cells failed to enhance their growth, suggesting that the CD19- CD3- B220+ cells were self renewing. Unexpectedly, in an adoptive cell trans fer experiment, IL-10 production was detected in Sca-1+ CD4+ CD25+ regulatory T cells (Treg). To our knowledge, this is the first report to identify IL-10-producing CD19- CD3- B220+ cells in the fetus. These cells may rep resent a potential progenitor of Sca-1+ Treg or pluripotent precursor cells for immune tolerance.
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Affiliation(s)
- Arisa Yano
- Department of Immunology, Kurume University of School of Medicine
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41
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Szostak B, Machaj F, Rosik J, Pawlik A. Umbilical cord blood transplantation and the impact of the CTLA4 genotype on outcomes. Expert Rev Hematol 2019; 12:1089-1094. [PMID: 31607188 DOI: 10.1080/17474086.2019.1680281] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Background: Umbilical cord blood transplantation is an effective method of curing multiple diseases when there is no donor available for allogeneic hematopoietic stem cell transplantation (AHSCT). It has been recently suggested that polymorphisms in genes affecting antigen presentation could potentially affect cord blood transplantation (CBT) outcomes.Areas covered: In this review, we present the results of the latest studies investigating the link between CTLA4 gene variability and umbilical cord blood transplantation outcomes.Expert opinion: The search for genetic variants that influence the immune response, both innate and adaptive immunity, may lead to more optimal therapies. Promising candidate genes are those that regulate the expression of proteins associated with T-cell activation. Many genetic variants could be therapeutically important, including those related to innate and adaptive immunity, cytokines, chemokines, drug-metabolizing enzymes, drug transporters, and inflammatory enzymes. The development of an algorithm that includes the determination of selected genetic variants could be helpful for an appropriate donor-recipient CBT matching.
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Affiliation(s)
- Bartosz Szostak
- Department of Physiology, Pomeranian Medical University, Szczecin, Poland
| | - Filip Machaj
- Department of Physiology, Pomeranian Medical University, Szczecin, Poland
| | - Jakub Rosik
- Department of Physiology, Pomeranian Medical University, Szczecin, Poland
| | - Andrzej Pawlik
- Department of Physiology, Pomeranian Medical University, Szczecin, Poland
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42
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Zhang P, Hill GR. Interleukin-10 mediated immune regulation after stem cell transplantation: Mechanisms and implications for therapeutic intervention. Semin Immunol 2019; 44:101322. [PMID: 31640914 DOI: 10.1016/j.smim.2019.101322] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 10/08/2019] [Indexed: 12/23/2022]
Abstract
Interleukin-10 (IL-10) is a multi-faceted anti-inflammatory cytokine which plays an essential role in immune tolerance. Indeed, deficiency of IL-10 or its receptor results in aberrant immune responses that lead to immunopathology. Graft-versus-host disease (GVHD) is the limiting complication of allogeneic stem cell transplantation (SCT) and results from an imbalance in pathological versus regulatory immune networks. A number of immune cells exert their immunomodulatory role through secretion of IL-10 or induction of IL-10-secreting cells after SCT. Type-1 regulatory T cells (Tr1 cells) and FoxP3+ regulatory T cells (Tregs) are predominant sources of IL-10 after SCT and the critical role of this cytokine in preventing GVHD is now established. Recently, intriguing interactions among IL-10, immune cells, commensal microbes and host tissues in the gastrointestinal (GI) tract and other barrier surfaces have been uncovered. We now understand that IL-10 secretion is dynamically modulated by the availability of antigen, co-stimulatory signals, cytokines, commensal microbes and their metabolites in the microenvironment. In this review, we provide an overview of the control of IL-10 secretion and signaling after SCT and the therapeutic interventions, with a focus on Tr1 cells.
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Affiliation(s)
- Ping Zhang
- Bone Marrow Transplantation Laboratory, QIMR Berghofer Medical Research Institute, Herston, QLD, 4006, Australia.
| | - Geoffrey R Hill
- Bone Marrow Transplantation Laboratory, QIMR Berghofer Medical Research Institute, Herston, QLD, 4006, Australia; Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA; Division of Medical Oncology, The University of Washington, Seattle, WA 98109, USA.
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43
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Alhabbab RY, Nova-Lamperti E, Aravena O, Burton HM, Lechler RI, Dorling A, Lombardi G. Regulatory B cells: Development, phenotypes, functions, and role in transplantation. Immunol Rev 2019; 292:164-179. [DOI: 10.1111/imr.12800] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 08/27/2019] [Indexed: 12/15/2022]
Affiliation(s)
- Rowa Y. Alhabbab
- Infectious Disease Unit and Division of Applied Medical Sciences King Fahad Centre for medical research King Abdulaziz University Jeddah Saudi Arabia
- Peter Gorer Department of Immunobiology MRC Centre for Transplantation School of Immunology & Mucosal Biology King's College LondonKing's Health PartnersGuy's Hospital London UK
| | - Estefanía Nova-Lamperti
- Molecular and Translational Immunology Laboratory Department of Clinical Biochemistry and Immunology Pharmacy Faculty Universidad de Concepción Concepción Chile
| | - Octavio Aravena
- Programa Disciplinario de Immunología Instituto de Ciencias Biomédicas Facultad de Medicina Universidad de Chile Santiago Chile
| | - Hannah M. Burton
- Peter Gorer Department of Immunobiology MRC Centre for Transplantation School of Immunology & Mucosal Biology King's College LondonKing's Health PartnersGuy's Hospital London UK
| | - Robert I. Lechler
- Peter Gorer Department of Immunobiology MRC Centre for Transplantation School of Immunology & Mucosal Biology King's College LondonKing's Health PartnersGuy's Hospital London UK
| | - Anthony Dorling
- Peter Gorer Department of Immunobiology MRC Centre for Transplantation School of Immunology & Mucosal Biology King's College LondonKing's Health PartnersGuy's Hospital London UK
| | - Giovanna Lombardi
- Peter Gorer Department of Immunobiology MRC Centre for Transplantation School of Immunology & Mucosal Biology King's College LondonKing's Health PartnersGuy's Hospital London UK
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Abstract
PURPOSE OF REVIEW Regulatory B cells (Bregs) are potent inhibitors of the immune system with the capacity to suppress autoimmune and alloimmune responses. Murine transplant models showing that Bregs can promote allograft tolerance are now supported by clinical data showing that patients who develop operational tolerance have higher frequency of Bregs. Breg function has been widely studied resulting in improved understanding of their biology and effector mechanisms. However, our overall understanding of Bregs remains poor due the lack of specific marker, limited knowledge of how and where they act in vivo, and whether different Breg subpopulations exhibit different functions. RECENT FINDINGS In this review we detail murine and human phenotypic markers used to identify Bregs, their induction, maintenance, and mechanisms of immune suppression. We highlight recent advances in the field including their use as biomarkers to predict allograft rejection, in-vitro expansion of Bregs, and the effects of commonly used immunosuppressive drugs on their induction and frequency. SUMMARY Clinical data continue to emerge in support of Bregs playing an important role in preventing transplant rejection. Hence, it is necessary for the transplant field to better comprehend the mechanisms of Breg induction and approaches to preserve or even enhance their activity to improve long-term transplant outcomes.
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45
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Hasan MM, Thompson-Snipes L, Klintmalm G, Demetris AJ, O'Leary J, Oh S, Joo H. CD24 hiCD38 hi and CD24 hiCD27 + Human Regulatory B Cells Display Common and Distinct Functional Characteristics. THE JOURNAL OF IMMUNOLOGY 2019; 203:2110-2120. [PMID: 31511354 DOI: 10.4049/jimmunol.1900488] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 08/13/2019] [Indexed: 12/22/2022]
Abstract
Although IL-10-producing regulatory B cells (Bregs) play important roles in immune regulation, their surface phenotypes and functional characteristics have not been fully investigated. In this study, we report that the frequency of IL-10-producing Bregs in human peripheral blood, spleens, and tonsils is similar, but they display heterogenous surface phenotypes. Nonetheless, CD24hiCD38hi transitional B cells (TBs) and CD24hiCD27+ B cells (human equivalent of murine B10 cells) are the major IL-10-producing B cells. They both suppress CD4+ T cell proliferation as well as IFN-γ/IL-17 expression. However, CD24hiCD27+ B cells were more efficient than TBs at suppressing CD4+ T cell proliferation and IFN-γ/IL-17 expression, whereas they both coexpress IL-10 and TNF-α. TGF-β1 and granzyme B expression were also enriched within CD24hiCD27+ B cells, when compared with TBs. Additionally, CD24hiCD27+ B cells expressed increased levels of surface integrins (CD11a, CD11b, α1, α4, and β1) and CD39 (an ecto-ATPase), suggesting that the in vivo mechanisms of action of the two Breg subsets are not the same. Lastly, we also report that liver allograft recipients with plasma cell hepatitis had significant decreases of both Breg subsets.
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Affiliation(s)
- Md Mahmudul Hasan
- Department of Immunology, Mayo Clinic, Scottsdale, AZ 85259.,Institute of Biomedical Studies, Baylor University, Waco, TX 76706
| | | | - Goran Klintmalm
- Annette C. and Harold C. Simmons Transplant Institute, Baylor University Medical Center, Dallas, TX 75246; and
| | | | - Jacqueline O'Leary
- Annette C. and Harold C. Simmons Transplant Institute, Baylor University Medical Center, Dallas, TX 75246; and
| | - SangKon Oh
- Department of Immunology, Mayo Clinic, Scottsdale, AZ 85259; .,Institute of Biomedical Studies, Baylor University, Waco, TX 76706
| | - HyeMee Joo
- Department of Immunology, Mayo Clinic, Scottsdale, AZ 85259; .,Institute of Biomedical Studies, Baylor University, Waco, TX 76706
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46
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Progress of cGVHD pathogenesis from the perspective of B cells. BLOOD SCIENCE 2019; 1:84-87. [PMID: 35402796 PMCID: PMC8974942 DOI: 10.1097/bs9.0000000000000021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 07/19/2019] [Indexed: 11/26/2022] Open
Abstract
An increasing number of physicians realize that chronic graft-versus-host disease (cGVHD) is not just dominated by T cells and that B cells also play a vital role in cGVHD development. It has been reported that altered B cell subsets, aberrant B cell signaling pathways, antibody deposition, and abnormal T-B interactions can be observed in many cGVHD patients. Studies of B cells in cGVHD development are now mainly focused on B cell subsets and GC destruction. These two aspects describe the process of B cell evolution in cGVHD patients and are associated with some original treatments. In this review, we summarize recent literature and discuss mechanisms and novel ideas of therapeutic strategies regarding the two aspects mentioned above.
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Mao Y, Wang Y, Dong L, Zhang Q, Wang C, Zhang Y, Li X, Fu Z. Circulating exosomes from esophageal squamous cell carcinoma mediate the generation of B10 and PD-1 high Breg cells. Cancer Sci 2019; 110:2700-2710. [PMID: 31276257 PMCID: PMC6726703 DOI: 10.1111/cas.14122] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 06/29/2019] [Accepted: 07/03/2019] [Indexed: 12/15/2022] Open
Abstract
As one of the most frequently diagnosed cancers, esophageal squamous cell carcinoma (ESCC) remains the leading cause of malignancy‐related death worldwide. Many studies have focused on the potential role of cancer cells in educating B cells during cancer progression. Here, we aim to explore the role of circulating exosomes from ESCC in the generation of two main regulatory B (Breg) subsets, including interleukin‐10+ Bregs (B10) and programmed cell death (PD)‐1high Bregs. Firstly, we observed an elevated percentage of B10 cells in peripheral blood of ESCC patients compared with healthy controls. Then we isolated and characterized exosomes from the peripheral blood of ESCC patients and an ESCC cell line. Exosomes from ESCC patients and the ESCC cell line suppressed the proliferation of B cells and induced the augmentation of B10 and PD‐1high Breg cells. By comparing the long non‐coding RNA and mRNA expression profiles in exosomes from ESCC patients or healthy controls, we identified a series of differentially expressed genes. Finally, we undertook gene annotation and pathway enrichment analyses on differentially expressed genes to explore the potential mechanism underlying the modulatory role of cancer exosomes in B cells. Our findings contribute to the study on B cell‐mediated ESCC immunosuppression and shed light on the possible application of exosomes in anticancer therapies.
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Affiliation(s)
- Yu Mao
- Department of Oncology, First Hospital of Qinhuangdao, Qinhuangdao, China
| | - Yimin Wang
- Department of General Surgery, First Hospital of Qinhuangdao, Hebei Medical University, Qinhuangdao, China
| | - Lixin Dong
- Department of Oncology, First Hospital of Qinhuangdao, Qinhuangdao, China
| | - Qiang Zhang
- Department of Oncology, First Hospital of Qinhuangdao, Qinhuangdao, China
| | - Chao Wang
- Department of Thoracic Surgery, First Hospital of Qinhuangdao, Qinhuangdao, China
| | - Yanqiu Zhang
- Department of Oncology, First Hospital of Qinhuangdao, Qinhuangdao, China
| | - Xin Li
- Department of Oncology, First Hospital of Qinhuangdao, Qinhuangdao, China
| | - Zhanzhao Fu
- Department of Oncology, First Hospital of Qinhuangdao, Qinhuangdao, China
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Role of Regulatory B Cells in the Progression of Cervical Cancer. Mediators Inflamm 2019; 2019:6519427. [PMID: 31316301 PMCID: PMC6604409 DOI: 10.1155/2019/6519427] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 05/16/2019] [Accepted: 05/29/2019] [Indexed: 12/25/2022] Open
Abstract
This study is to investigate the role of regulatory B (Breg) cells in cervical cancer. In total, 70 cases of cervical cancer, 52 cases of cervical intraepithelial neoplasia (CIN), and 40 normal controls were enrolled. The percentage of Breg cells was detected by flow cytometry. Serum levels of IL-10 were measured by ELISA. The correlation between Breg cells and the clinical characterizations of cervical cancer was analyzed. The inhibition effect of Breg cells on CD8+ T cells was tested by blocking IL-10 in vitro. The percentage of CD19+CD5+CD1d+ Breg cells and the level of IL-10 of patients with cervical cancer or CIN were significantly higher than those in the control group (P < 0.05). And the postoperative levels of Breg cells and IL-10 were significantly lower than the preoperative levels (P < 0.05). Breg cells and the IL-10 level were positively correlated in cervical cancer patients (r = 0.516). In addition, the Breg cell percentage was closely related to the FIGO stages, lymph node metastasis, tumor differentiation, HPV infection, and the tumor metastasis of cervical cancer (P < 0.05). The Breg cell percentage was negatively correlated with CD8+ T cells of cervical cancer patients (r = -0.669). The level of IL-10 in the culture supernatant of Bregs treated with CpG was significantly higher than that of non-Bregs (P < 0.05). After coculture with Bregs, the quantity of CD8+ T cells to secrete perforin and Granzyme B was significantly decreased, and this effect was reversed after blocking IL-10 by a specific antibody. Breg cells are elevated in cervical cancer and associated with disease progression and metastasis. Moreover, they can inhibit the cytotoxicity of CD8+ T cells.
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Bjørn ME, Brimnes MK, Gudbrandsdottir S, Andersen CL, Poulsen HE, Henriksen T, Hasselbalch HC, Nielsen CH. Ruxolitinib treatment reduces monocytic superoxide radical formation without affecting hydrogen peroxide formation or systemic oxidative nucleoside damage in myelofibrosis. Leuk Lymphoma 2019; 60:2549-2557. [PMID: 30785365 DOI: 10.1080/10428194.2019.1579323] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The role of excess reactive oxygen species (ROS) with consequent DNA/RNA damage is now recognized as a hallmark of cancer. In JAK2V617F mutated myeloproliferative neoplasms, ROS have been suggested to be important factors in disease initiation and progression. Ruxolitinib is the most widely used drug for myelofibrosis, because it improves symptom-score. However, both the anti-clonal potential and improvement in overall survival are limited. We investigated the impact of ruxolitinib on formation of superoxide radical and hydrogen peroxide by monocytes in sequentially acquired blood samples from patients with myelofibrosis. We also investigated the impact on RNA and DNA damage by measuring urinary excretion of 8-oxo-Guo and 8-oxo-d-Guo. The formation of superoxide by monocytes was reduced significantly during ruxolitinib therapy, but no impact on the formation of hydrogen peroxide by monocytes or the systemic amount of oxidatively damaged RNA or DNA could be demonstrated. We conclude that ruxolitinib holds little anti-oxidative potential.
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Affiliation(s)
- Mads Emil Bjørn
- Department of Hematology, Region Zealand University, Roskilde Hospital , Roskilde , Denmark.,Institute for Inflammation Research (IIR), Center for Rheumatology and Spine Diseases, Rigshospitalet, University of Copenhagen , Copenhagen , Denmark
| | - Marie Klinge Brimnes
- Institute for Inflammation Research (IIR), Center for Rheumatology and Spine Diseases, Rigshospitalet, University of Copenhagen , Copenhagen , Denmark
| | - Sif Gudbrandsdottir
- Institute for Inflammation Research (IIR), Center for Rheumatology and Spine Diseases, Rigshospitalet, University of Copenhagen , Copenhagen , Denmark.,Department of Hematology, Herlev Hospital , Herlev , Denmark
| | | | - Henrik Enghusen Poulsen
- Laboratory of Clinical Pharmacology Q7642, University of Copenhagen, Rigshospitalet , Copenhagen , Denmark.,Department of Clinical Pharmacology, Bispebjerg Hospital, Faculty of Health and Medical Sciences, University of Copenhagen , Copenhagen , Denmark.,Faculty of Health and Medical Sciences, University of Copenhagen , Copenhagen , Denmark
| | - Trine Henriksen
- Laboratory of Clinical Pharmacology Q7642, University of Copenhagen, Rigshospitalet , Copenhagen , Denmark
| | - Hans Carl Hasselbalch
- Department of Hematology, Region Zealand University, Roskilde Hospital , Roskilde , Denmark.,Faculty of Health and Medical Sciences, University of Copenhagen , Copenhagen , Denmark
| | - Claus Henrik Nielsen
- Institute for Inflammation Research (IIR), Center for Rheumatology and Spine Diseases, Rigshospitalet, University of Copenhagen , Copenhagen , Denmark.,Faculty of Health and Medical Sciences, University of Copenhagen , Copenhagen , Denmark
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Li X, Gao Q, Feng Y, Zhang X. Developing role of B cells in the pathogenesis and treatment of chronic GVHD. Br J Haematol 2018; 184:323-336. [PMID: 30585319 PMCID: PMC6590173 DOI: 10.1111/bjh.15719] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Chronic graft-versus-host disease (cGVHD) is a major complication affecting the long-term survival of patients after allogeneic haematopoietic stem cell transplantation. The mechanism of cGVHD is unclear, and while previous studies have primarily focused on T cells, the role of B cells in the pathogenesis of cGVHD has been less reported. However, current studies on cGVHD are increasingly focused on the important role of B cells. In this review, we will introduce the newest studies and examine the role of B cells in cGVHD in detail with respect to the following aspects: altered B cell subpopulations, aberrant B cell signalling pathways, autoantibodies and T-B cell interactions. Treatment strategies for the targeting of B cells during cGVHD will also be discussed.
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Affiliation(s)
- Xiaoping Li
- Department of Haematology, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Qiangguo Gao
- Department of Cell Biology College of Basic Medicine, Third Military Medicine University, Chongqing, China
| | - Yimei Feng
- Department of Haematology, Xinqiao Hospital, Third Military Medical University, Chongqing, China
| | - Xi Zhang
- Department of Haematology, Xinqiao Hospital, Third Military Medical University, Chongqing, China
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