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Millan AJ, Elizaldi SR, Lee EM, Aceves JO, Murugesh D, Loots GG, Manilay JO. Sostdc1 Regulates NK Cell Maturation and Cytotoxicity. THE JOURNAL OF IMMUNOLOGY 2019; 202:2296-2306. [PMID: 30814306 DOI: 10.4049/jimmunol.1801157] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 02/06/2019] [Indexed: 01/08/2023]
Abstract
NK cells are innate-like lymphocytes that eliminate virally infected and cancerous cells, but the mechanisms that control NK cell development and cytotoxicity are incompletely understood. We identified roles for sclerostin domain-containing-1 (Sostdc1) in NK cell development and function. Sostdc1-knockout (Sostdc1 -/-) mice display a progressive accumulation of transitional NK cells (tNKs) (CD27+CD11b+) with age, indicating a partial developmental block. The NK cell Ly49 repertoire in Sostdc1 -/- mice is also changed. Lower frequencies of Sostdc1 -/- splenic tNKs express inhibitory Ly49G2 receptors, but higher frequencies express activating Ly49H and Ly49D receptors. However, the frequencies of Ly49I+, G2+, H+, and D+ populations were universally decreased at the most mature (CD27-CD11b+) stage. We hypothesized that the Ly49 repertoire in Sostdc1 -/- mice would correlate with NK killing ability and observed that Sostdc1-/- NK cells are hyporesponsive against MHC class I-deficient cell targets in vitro and in vivo, despite higher CD107a surface levels and similar IFN-γ expression to controls. Consistent with Sostdc1's known role in Wnt signaling regulation, Tcf7 and Lef1 levels were higher in Sostdc1 -/- NK cells. Expression of the NK development gene Id2 was decreased in Sostdc1-/- immature NK and tNK cells, but Eomes and Tbx21 expression was unaffected. Reciprocal bone marrow transplant experiments showed that Sostdc1 regulates NK cell maturation and expression of Ly49 receptors in a cell-extrinsic fashion from both nonhematopoietic and hematopoietic sources. Taken together, these data support a role for Sostdc1 in the regulation of NK cell maturation and cytotoxicity, and identify potential NK cell niches.
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Affiliation(s)
- Alberto J Millan
- Department of Molecular Cell Biology, School of Natural Sciences, University of California, Merced, Merced, CA 95343; and
| | - Sonny R Elizaldi
- Department of Molecular Cell Biology, School of Natural Sciences, University of California, Merced, Merced, CA 95343; and
| | - Eric M Lee
- Department of Molecular Cell Biology, School of Natural Sciences, University of California, Merced, Merced, CA 95343; and
| | - Jeffrey O Aceves
- Department of Molecular Cell Biology, School of Natural Sciences, University of California, Merced, Merced, CA 95343; and
| | - Deepa Murugesh
- Department of Molecular Cell Biology, School of Natural Sciences, University of California, Merced, Merced, CA 95343; and
| | - Gabriela G Loots
- Department of Molecular Cell Biology, School of Natural Sciences, University of California, Merced, Merced, CA 95343; and.,Physical and Life Sciences Directorate, Lawrence Livermore National Laboratories, Livermore, CA 94550
| | - Jennifer O Manilay
- Department of Molecular Cell Biology, School of Natural Sciences, University of California, Merced, Merced, CA 95343; and
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Gardner JK, Jackaman C, Mamotte CDS, Nelson DJ. The Regulatory Status Adopted by Lymph Node Dendritic Cells and T Cells During Healthy Aging Is Maintained During Cancer and May Contribute to Reduced Responses to Immunotherapy. Front Med (Lausanne) 2018; 5:337. [PMID: 30560130 PMCID: PMC6287204 DOI: 10.3389/fmed.2018.00337] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Accepted: 11/15/2018] [Indexed: 12/17/2022] Open
Abstract
Aging is associated with an increased incidence of cancer. One contributing factor could be modulation of immune cells responsible for anti-tumor responses, such as dendritic cells (DCs) and T cells. These immunological changes may also impact the efficacy of cancer immunotherapies in the elderly. The effects of healthy aging on DCs and T cells, and their impact on anti-mesothelioma immune responses, had not been reported. This study examined DCs and T cells in young (2–5 months; equivalent to 16–26 human years) and elderly (20–24 months; equivalent to 60–70 human years) healthy and mesothelioma-bearing C57BL/6J mice. During healthy aging, elderly lymph nodes adopted a regulatory profile, characterized by: (i) increased plasmacytoid DCs, (ii) increased expression of the adenosine-producing enzyme CD73 on CD11c+ cells, and (iii) increased expression of multiple regulatory markers (including CD73, the adenosine A2B receptor, CTLA-4, PD-1, ICOS, LAG-3, and IL-10) on CD8+ and CD4+ T cells, compared to lymph nodes from young mice. Although mesotheliomas grew faster in elderly mice, the increased regulatory status observed in healthy elderly lymph node DCs and T cells was not further exacerbated. However, elderly tumor-bearing mice demonstrated reduced MHC-I, MHC-II and CD80 on CD11c+ cells, and decreased IFN-γ by CD8+ and CD4+ T cells within tumors, compared to young counterparts, implying loss of function. An agonist CD40 antibody based immunotherapy was less efficient at promoting tumor regression in elderly mice, which may be due to: (i) failure of elderly CD8+ T cells to up-regulate perforin, and (ii) increased expression of multiple regulatory markers on CD11c+ cells and T cells in elderly tumor-draining lymph nodes (including CD73, PD-1, ICOS, LAG-3, and TGF-β). Our findings suggest that checkpoint blockade may improve responses to immunotherapy in elderly hosts with mesothelioma, and warrants further investigation.
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Affiliation(s)
- Joanne K Gardner
- School of Pharmacy and Biomedical Sciences, Faculty of Health Sciences, Curtin University, Perth, WA, Australia.,Curtin Health and Innovation Research Institute, Curtin University, Perth, WA, Australia
| | - Connie Jackaman
- School of Pharmacy and Biomedical Sciences, Faculty of Health Sciences, Curtin University, Perth, WA, Australia.,Curtin Health and Innovation Research Institute, Curtin University, Perth, WA, Australia
| | - Cyril D S Mamotte
- School of Pharmacy and Biomedical Sciences, Faculty of Health Sciences, Curtin University, Perth, WA, Australia.,Curtin Health and Innovation Research Institute, Curtin University, Perth, WA, Australia
| | - Delia J Nelson
- School of Pharmacy and Biomedical Sciences, Faculty of Health Sciences, Curtin University, Perth, WA, Australia.,Curtin Health and Innovation Research Institute, Curtin University, Perth, WA, Australia
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Lee JG, Jang JY, Fang T, Xu Y, Yan JJ, Ryu JH, Jeon HJ, Koo TY, Kim DK, Oh KH, Kim TJ, Yang J. Identification of Human B-1 Helper T Cells With a Th1-Like Memory Phenotype and High Integrin CD49d Expression. Front Immunol 2018; 9:1617. [PMID: 30061889 PMCID: PMC6054961 DOI: 10.3389/fimmu.2018.01617] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 06/29/2018] [Indexed: 11/13/2022] Open
Abstract
Human B-1 cells have been proposed to be CD20+CD27+CD43+CD1c- B cells found in the umbilical cord and adult peripheral blood, but their regulatory mechanisms have not been well elucidated. Previously, we reported that mouse CD49dhigh CD4+ T cells could enhance the secretion of natural antibodies by B-1 cells. In this study, we aimed to investigate the presence and helper functions of the human equivalents of murine CD49dhigh CD4+ T cells. Here, we showed that human CD49dhigh CD4+ T cells found in the peritoneal cavity (PEC), spleen, and peripheral blood can enhance the production of IgM antibodies by B-1 cells. As revealed in mouse, CD49dhigh CD4+ T cells were more abundant in the PEC and showed a higher tendency to form conjugates with B cells than CD49dlow CD4+ T cells. Moreover, CD49dhigh CD4+ T cells showed a Th1-like memory phenotype, characterized by high expression of CD44 and CXCR3; low expression of CD62L and CCR7; rapid production of IFN-γ, tumor necrosis factor-α, and IL-2 upon stimulation with phorbol myristate acetate and ionomycin; and rapid proliferation upon stimulation with anti-CD3 and anti-CD28 antibodies. These cells also expressed high levels of PD-1, ICOS, and CD5, suggesting that they are undergoing chronic stimulation. Remarkably, CD49dhigh CD4+ T cells specifically helped B-1 cells, but not follicular memory B cells (CD27+ CD43-CD1c-) or marginal zone B cells (CD27+CD43-CD1c+), produce IgM and IgG antibodies. In parallel, the titer of human anti-blood group A IgM was positively correlated with the frequency of CD49dhigh CD4+ T cells. In conclusion, we identified human CD49dhigh CD4+ T cells with a Th1-like memory phenotype that secrete Th1 proinflammatory cytokines and help B-1 cells secrete antibodies, thereby aiding in primary defense. We suggest that these CD49dhigh CD4+ T cells are a unique type of B-cell helper T cells distinct from follicular helper T cells.
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Affiliation(s)
- Jae-Ghi Lee
- Transplantation Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Joon Young Jang
- Transplantation Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Taishi Fang
- Transplantation Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Yixuan Xu
- Transplantation Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Ji-Jing Yan
- Transplantation Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Jung-Hwa Ryu
- Transplantation Center, Seoul National University Hospital, Seoul, South Korea
| | - Hee Jung Jeon
- Department of Internal Medicine, Hallym University College of Medicine, Seoul, South Korea
| | - Tai Yeon Koo
- Transplantation Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Dong Ki Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
| | - Kook-Hwan Oh
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
| | - Tae Jin Kim
- Division of Immunobiology, Sungkyunkwan University School of Medicine, Suwon, South Korea
| | - Jaeseok Yang
- Transplantation Research Institute, Seoul National University College of Medicine, Seoul, South Korea.,Transplantation Center, Seoul National University Hospital, Seoul, South Korea.,Department of Surgery, Seoul National University Hospital, Seoul, South Korea
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Gardner JK, Mamotte CD, Jackaman C, Nelson DJ. Modulation of dendritic cell and T cell cross-talk during aging: The potential role of checkpoint inhibitory molecules. Ageing Res Rev 2017; 38:40-51. [PMID: 28736117 DOI: 10.1016/j.arr.2017.07.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Revised: 06/17/2017] [Accepted: 07/17/2017] [Indexed: 12/24/2022]
Abstract
Dendritic cells (DCs) undergo continuous changes throughout life, and there is evidence that elderly DCs have a reduced capacity to stimulate T cells, which may contribute to impaired anti-tumour immune responses in elderly people with cancer. Changes in checkpoint inhibitory molecules/pathways during aging may be one mechanism that impairs the ability of elderly DCs to activate T cells. However, little is currently known regarding the combined effects of aging and cancer on DC and T cell inhibitory molecules/pathways. In this review, we discuss our current understanding of the influence of aging and cancer on key DC and T cell inhibitory molecules/pathways, the potential underlying cellular and molecular mechanisms contributing to their modulation, and the possibility of therapeutically targeting inhibitory molecules in elderly cancer patients.
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Talepoor AG, Behnamfar N, Zibaeenezhad MJ, Doroudchi M. IL-17 producing CD4+CD45RO+ T-cells in atherosclerosis express GITR molecule. Artery Res 2017. [DOI: 10.1016/j.artres.2017.12.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
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