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Schwarz J, Rühle J, Stephan K, Dietz S, Geißert J, Schoppmeier U, Frick JS, Hudalla H, Lajqi T, Poets CF, Gille C, Köstlin-Gille N. HIF-1α targeted deletion in myeloid cells decreases MDSC accumulation and alters microbiome in neonatal mice. Eur J Immunol 2023; 53:e2250144. [PMID: 37044112 DOI: 10.1002/eji.202250144] [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: 08/19/2022] [Revised: 04/01/2023] [Accepted: 04/11/2023] [Indexed: 04/14/2023]
Abstract
The newborn's immune system is faced with the challenge of having to learn quickly to fight off infectious agents, but tolerating the colonization of the body surfaces with commensals without reacting with an excessive inflammatory response. Myeloid-derived suppressor cells (MDSC) are innate immune cells with suppressive activity on other immune cells that regulate fetal-maternal tolerance during pregnancy and control intestinal inflammation in neonates. Until now, nothing is known about the role of MDSC in microbiome establishment. One of the transcription factors regulating MDSC homeostasis is the hypoxia-inducible factor 1α (HIF-1α). We investigated the impact of HIF-1α on MDSC accumulation and microbiome establishment during the neonatal period in a mouse model with targeted deletion of HIF-1α in myeloid cells (Hif1a loxP/loxP LysMCre+). We show that in contrast to wildtype mice, where an extensive expansion of MDSC was observed, MDSC expansion in neonatal Hif1a loxP/loxP LysMCre+ mice was dramatically reduced both systemically and locally in the intestine. This was accompanied by an altered microbiome composition and intestinal T-cell homeostasis. Our results point toward a role of MDSC in inflammation regulation in the context of microbiome establishment and thus reveal a new aspect of the biological role of MDSC during the neonatal period.
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Affiliation(s)
- Julian Schwarz
- Tuebingen University Children's Hospital, Department of Neonatology, Tuebingen, Germany
| | - Jessica Rühle
- Tuebingen University Children's Hospital, Department of Neonatology, Tuebingen, Germany
| | - Kevin Stephan
- Tuebingen University Children's Hospital, Department of Neonatology, Tuebingen, Germany
| | - Stefanie Dietz
- Tuebingen University Children's Hospital, Department of Neonatology, Tuebingen, Germany
- Heidelberg University Children's Hospital, Department of Neonatology, Heidelberg, Germany
| | - Janina Geißert
- Institute for Medical Microbiology and Hygiene, University Hospital Tuebingen, Tuebingen, Germany
- NGS-Competence Center Tuebingen, Institute for Medical Microbiology and Hygiene, University Hospital Tuebingen, Tuebingen, Germany
| | - Ulrich Schoppmeier
- Institute for Medical Microbiology and Hygiene, University Hospital Tuebingen, Tuebingen, Germany
| | - Julia S Frick
- Institute for Medical Microbiology and Hygiene, University Hospital Tuebingen, Tuebingen, Germany
- MVZ Laboratory Ludwigsburg GbR, Germany
| | - Hannes Hudalla
- Heidelberg University Children's Hospital, Department of Neonatology, Heidelberg, Germany
| | - Trim Lajqi
- Heidelberg University Children's Hospital, Department of Neonatology, Heidelberg, Germany
| | - Christian F Poets
- Tuebingen University Children's Hospital, Department of Neonatology, Tuebingen, Germany
| | - Christian Gille
- Heidelberg University Children's Hospital, Department of Neonatology, Heidelberg, Germany
| | - Natascha Köstlin-Gille
- Tuebingen University Children's Hospital, Department of Neonatology, Tuebingen, Germany
- Heidelberg University Children's Hospital, Department of Neonatology, Heidelberg, Germany
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Ostrand-Rosenberg S, Lamb TJ, Pawelec G. Here, There, and Everywhere: Myeloid-Derived Suppressor Cells in Immunology. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2023; 210:1183-1197. [PMID: 37068300 PMCID: PMC10111205 DOI: 10.4049/jimmunol.2200914] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 01/06/2023] [Indexed: 04/19/2023]
Abstract
Myeloid-derived suppressor cells (MDSCs) were initially identified in humans and mice with cancer where they profoundly suppress T cell- and NK cell-mediated antitumor immunity. Inflammation is a central feature of many pathologies and normal physiological conditions and is the dominant driving force for the accumulation and function of MDSCs. Therefore, MDSCs are present in conditions where inflammation is present. Although MDSCs are detrimental in cancer and conditions where cellular immunity is desirable, they are beneficial in settings where cellular immunity is hyperactive. Because MDSCs can be generated ex vivo, they are being exploited as therapeutic agents to reduce damaging cellular immunity. In this review, we discuss the detrimental and beneficial roles of MDSCs in disease settings such as bacterial, viral, and parasitic infections, sepsis, obesity, trauma, stress, autoimmunity, transplantation and graft-versus-host disease, and normal physiological settings, including pregnancy and neonates as well as aging. The impact of MDSCs on vaccination is also discussed.
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Affiliation(s)
- Suzanne Ostrand-Rosenberg
- Division of Microbiology and Immunology, Department of Pathology, University of Utah 84112, Salt Lake City, UT
- Huntsman Cancer Institute, University of Utah, Salt Lake City, UT 84112, USA
| | - Tracey J. Lamb
- Division of Microbiology and Immunology, Department of Pathology, University of Utah 84112, Salt Lake City, UT
| | - Graham Pawelec
- Department of Immunology, Interfaculty Institute for Cell Biology, University of Tübingen, Tübingen, Germany, and Health Sciences North Research Institute, Sudbury, ON, Canada
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Rühle J, Ginzel M, Dietz S, Schwarz J, Lajqi T, Beer-Hammer S, Poets CF, Gille C, Köstlin-Gille N. Depletion of Ly6G-Expressing Neutrophilic Cells Leads to Altered Peripheral T-Cell Homeostasis and Thymic Development in Neonatal Mice. Int J Mol Sci 2023; 24:7763. [PMID: 37175470 PMCID: PMC10178674 DOI: 10.3390/ijms24097763] [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: 03/23/2023] [Revised: 04/14/2023] [Accepted: 04/21/2023] [Indexed: 05/15/2023] Open
Abstract
Newborns and especially preterm infants are much more susceptible to infections than adults. Due to immature adaptive immunity, especially innate immune cells play an important role in a newborn's infection defense. Neonatal neutrophils exhibit profound differences in their functionality compared to neutrophils of adults. In particular, neonates possess a relevant population of suppressive neutrophils, which not only inhibit but also specifically modulate the function of T-cells. In this study, we investigated whether neonatal neutrophils are already involved in T-cell development in the thymus. For this purpose, we used a newly developed model of antibody-mediated immune cell depletion in which we administered a depleting antibody to pregnant and then lactating dams. Using this method, we were able to sufficiently deplete Ly6G-positive neutrophils in offspring. We demonstrated that the depletion of neutrophils in newborn mice resulted in altered peripheral T-cell homeostasis with a decreased CD4+/CD8+ T-cell ratio and decreased expression of CD62L. Neutrophil depletion even affected T-cell development in the thymus, with increased double positive thymocytes and a decreased CD4+/CD8+ single positive thymocyte ratio. Altogether, we demonstrated a previously unknown mechanism mediating neutrophils' immunomodulatory effects in newborns.
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Affiliation(s)
- Jessica Rühle
- Department of Neonatology, University of Tübingen, D-72076 Tübingen, Germany; (J.R.); (S.D.); (J.S.); (C.F.P.)
| | - Marco Ginzel
- Department of Pediatric and Adolescent Surgery, Paracelsus Medical University Hospital, A-5020 Salzburg, Austria;
| | - Stefanie Dietz
- Department of Neonatology, University of Tübingen, D-72076 Tübingen, Germany; (J.R.); (S.D.); (J.S.); (C.F.P.)
- Department of Neonatology, Heidelberg University Children’s Hospital, D-69120 Heidelberg, Germany; (T.L.); (C.G.)
| | - Julian Schwarz
- Department of Neonatology, University of Tübingen, D-72076 Tübingen, Germany; (J.R.); (S.D.); (J.S.); (C.F.P.)
| | - Trim Lajqi
- Department of Neonatology, Heidelberg University Children’s Hospital, D-69120 Heidelberg, Germany; (T.L.); (C.G.)
| | - Sandra Beer-Hammer
- Department of Pharmacology, Experimental Therapy and Toxicology, Institute of Experimental and Clinical Pharmacology and Pharmacogenomic and ICePhA, University of Tübingen, D-72074 Tübingen, Germany;
| | - Christian F. Poets
- Department of Neonatology, University of Tübingen, D-72076 Tübingen, Germany; (J.R.); (S.D.); (J.S.); (C.F.P.)
| | - Christian Gille
- Department of Neonatology, Heidelberg University Children’s Hospital, D-69120 Heidelberg, Germany; (T.L.); (C.G.)
| | - Natascha Köstlin-Gille
- Department of Neonatology, University of Tübingen, D-72076 Tübingen, Germany; (J.R.); (S.D.); (J.S.); (C.F.P.)
- Department of Neonatology, Heidelberg University Children’s Hospital, D-69120 Heidelberg, Germany; (T.L.); (C.G.)
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4
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Nyberg WA, Ark J, To A, Clouden S, Reeder G, Muldoon JJ, Chung JY, Xie WH, Allain V, Steinhart Z, Chang C, Talbot A, Kim S, Rosales A, Havlik LP, Pimentel H, Asokan A, Eyquem J. An evolved AAV variant enables efficient genetic engineering of murine T cells. Cell 2023; 186:446-460.e19. [PMID: 36638795 PMCID: PMC10540678 DOI: 10.1016/j.cell.2022.12.022] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 10/24/2022] [Accepted: 12/09/2022] [Indexed: 01/13/2023]
Abstract
Precise targeting of large transgenes to T cells using homology-directed repair has been transformative for adoptive cell therapies and T cell biology. Delivery of DNA templates via adeno-associated virus (AAV) has greatly improved knockin efficiencies, but the tropism of current AAV serotypes restricts their use to human T cells employed in immunodeficient mouse models. To enable targeted knockins in murine T cells, we evolved Ark313, a synthetic AAV that exhibits high transduction efficiency in murine T cells. We performed a genome-wide knockout screen and identified QA2 as an essential factor for Ark313 infection. We demonstrate that Ark313 can be used for nucleofection-free DNA delivery, CRISPR-Cas9-mediated knockouts, and targeted integration of large transgenes. Ark313 enables preclinical modeling of Trac-targeted CAR-T and transgenic TCR-T cells in immunocompetent models. Efficient gene targeting in murine T cells holds great potential for improved cell therapies and opens avenues in experimental T cell immunology.
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Affiliation(s)
- William A Nyberg
- Department of Medicine, University of California, San Francisco, San Francisco, CA 94143, USA; Gladstone-UCSF Institute of Genomic Immunology, San Francisco, CA 94158, USA
| | - Jonathan Ark
- Department of Molecular Genetics & Microbiology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Angela To
- Department of Medicine, University of California, San Francisco, San Francisco, CA 94143, USA; Gladstone-UCSF Institute of Genomic Immunology, San Francisco, CA 94158, USA
| | - Sylvanie Clouden
- Department of Surgery, Duke University School of Medicine, Durham, NC 27710, USA
| | - Gabriella Reeder
- Department of Medicine, University of California, San Francisco, San Francisco, CA 94143, USA; Gladstone-UCSF Institute of Genomic Immunology, San Francisco, CA 94158, USA; Biomedical Sciences Graduate Program, University of California, San Francisco, San Francisco, CA 94131, USA
| | - Joseph J Muldoon
- Department of Medicine, University of California, San Francisco, San Francisco, CA 94143, USA; Gladstone-UCSF Institute of Genomic Immunology, San Francisco, CA 94158, USA
| | - Jing-Yi Chung
- Department of Medicine, University of California, San Francisco, San Francisco, CA 94143, USA; Gladstone-UCSF Institute of Genomic Immunology, San Francisco, CA 94158, USA
| | - William H Xie
- Department of Medicine, University of California, San Francisco, San Francisco, CA 94143, USA; Biomedical Sciences Graduate Program, University of California, San Francisco, San Francisco, CA 94131, USA
| | - Vincent Allain
- Department of Medicine, University of California, San Francisco, San Francisco, CA 94143, USA; Gladstone-UCSF Institute of Genomic Immunology, San Francisco, CA 94158, USA; Université de Paris Cité, INSERM UMR976, Hôpital St-Louis, Paris, France
| | - Zachary Steinhart
- Department of Medicine, University of California, San Francisco, San Francisco, CA 94143, USA; Gladstone-UCSF Institute of Genomic Immunology, San Francisco, CA 94158, USA
| | - Christopher Chang
- Department of Medicine, University of California, San Francisco, San Francisco, CA 94143, USA; Gladstone-UCSF Institute of Genomic Immunology, San Francisco, CA 94158, USA; Biomedical Sciences Graduate Program, University of California, San Francisco, San Francisco, CA 94131, USA; Medical Scientist Training Program, University of California, San Francisco, San Francisco, CA 94131, USA
| | - Alexis Talbot
- Department of Medicine, University of California, San Francisco, San Francisco, CA 94143, USA; Gladstone-UCSF Institute of Genomic Immunology, San Francisco, CA 94158, USA; Université de Paris Cité, INSERM UMR976, Hôpital St-Louis, Paris, France
| | - Sandy Kim
- Bioinformatics Interdepartmental Program, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Alan Rosales
- Department of Biomedical Engineering, Duke University, Durham, NC 27710, USA
| | - L Patrick Havlik
- Department of Biomedical Engineering, Duke University, Durham, NC 27710, USA
| | - Harold Pimentel
- Bioinformatics Interdepartmental Program, University of California, Los Angeles, Los Angeles, CA 90095, USA; Howard Hughes Medical Institute, Sloan Foundation, Departments of Computational Medicine, Human Genetics, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Aravind Asokan
- Department of Molecular Genetics & Microbiology, Duke University School of Medicine, Durham, NC 27710, USA; Department of Surgery, Duke University School of Medicine, Durham, NC 27710, USA; Department of Biomedical Engineering, Duke University, Durham, NC 27710, USA.
| | - Justin Eyquem
- Department of Medicine, University of California, San Francisco, San Francisco, CA 94143, USA; Gladstone-UCSF Institute of Genomic Immunology, San Francisco, CA 94158, USA; Parker Institute for Cancer Immunotherapy, San Francisco, CA 94143, USA; Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA, USA; UCSF Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, San Francisco, CA, USA.
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5
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Pang B, Hu C, Li H, Nie X, Wang K, Zhou C, Yi H. Myeloidderived suppressor cells: Escorts at the maternal-fetal interface. Front Immunol 2023; 14:1080391. [PMID: 36817414 PMCID: PMC9932974 DOI: 10.3389/fimmu.2023.1080391] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 01/13/2023] [Indexed: 02/05/2023] Open
Abstract
Myeloid-derived suppressor cells (MDSCs) are a novel heterogenous group of immunosuppressive cells derived from myeloid progenitors. Their role is well known in tumors and autoimmune diseases. In recent years, the role and function of MDSCs during reproduction have attracted increasing attention. Improving the understanding of their strong association with recurrent implantation failure, pathological pregnancy, and neonatal health has become a focus area in research. In this review, we focus on the interaction between MDSCs and other cell types (immune and non-immune cells) from embryo implantation to postpartum. Furthermore, we discuss the molecular mechanisms that could facilitate the therapeutic targeting of MDSCs. Therefore, this review intends to encourage further research in the field of maternal-fetal interface immunity in order to identify probable pathways driving the accumulation of MDSCs and to effectively target their ability to promote embryo implantation, reduce pathological pregnancy, and increase neonatal health.
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Affiliation(s)
- Bo Pang
- Central Laboratory, First Hospital of Jilin University, Changchun, Jilin, China.,Cardiology Department, First Hospital of Jilin University, Changchun, Jilin, China
| | - Cong Hu
- Central Laboratory, First Hospital of Jilin University, Changchun, Jilin, China.,Reproductive Medicine Center, Prenatal Diagnosis Center, First Hospital of Jilin University, Changchun, Jilin, China
| | - Huimin Li
- Central Laboratory, First Hospital of Jilin University, Changchun, Jilin, China.,Department of Clinical Laboratory, The Second Hospital of Jilin University, Changchun, China
| | - Xinyu Nie
- Central Laboratory, First Hospital of Jilin University, Changchun, Jilin, China.,Reproductive Medicine Center, Prenatal Diagnosis Center, First Hospital of Jilin University, Changchun, Jilin, China
| | - Keqi Wang
- Central Laboratory, First Hospital of Jilin University, Changchun, Jilin, China.,Cardiology Department, First Hospital of Jilin University, Changchun, Jilin, China
| | - Chen Zhou
- General Department, First Hospital of Jilin University, Changchun, Jilin, China
| | - Huanfa Yi
- Central Laboratory, First Hospital of Jilin University, Changchun, Jilin, China
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