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Borgna E, Gamba JC, Prochetto E, Marcipar I, Cabrera G. Simple protocol for measuring CD11b+ GR-1+ (Ly6C+/Ly6G+) myeloid cells from a minimum volume of mouse peripheral blood. Methods Cell Biol 2024; 184:59-68. [PMID: 38555158 DOI: 10.1016/bs.mcb.2024.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/02/2024]
Abstract
Myeloid-derived suppressor cells (MDSCs) comprise a heterogeneous population of myeloid origin and immature state, whose hallmark is the capacity to suppress T cells and other immune populations. In mice, the first approach to identify MDSCs relies in the measurement of their phenotypical markers: CD11b and GR-1. In addition, two main subtypes of MDSCs have been defined based on the expression of the following markers: CD11b+ Ly6G- Ly6C+ (monocytic-MDSCs, M-MDSCs) and CD11b+ Ly6G+ Ly6C+/low (polymorphonuclear-MDSCs, PMN-MDSCs). Since CD11b+ GR-1+ (Ly6C+/Ly6G+) MDSCs can increase significantly in peripheral blood during numerous acute or chronic processes, measuring alterations in the phenotypic markers CD11b and GR-1 could be important as a first step before assessing the suppressive function of the cells. In many cases it could be necessary to measure CD11b+ Gr-1+ cells from a minimum volume of peripheral blood cells without greatly affecting animal viability, since this approach would allow for further studies to be conducted on subsequent days, such as measuring parameters of the immune response or even survival in the context of the pathology under study. The following protocol describes a simple and optimized protocol for measuring the presence of CD11b+ GR-1+ (Ly6C+/Ly6G+) myeloid cells using 2+ channel flow cytometry, from a minimum volume of mouse peripheral blood obtained by facial vein puncture.
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Affiliation(s)
- Eliana Borgna
- Laboratorio de Tecnología Inmunológica, Facultad de Bioquímica y Ciencias Biológicas (FBCB), Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Juan Cruz Gamba
- Laboratorio de Tecnología Inmunológica, Facultad de Bioquímica y Ciencias Biológicas (FBCB), Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Estefanía Prochetto
- Laboratorio de Tecnología Inmunológica, Facultad de Bioquímica y Ciencias Biológicas (FBCB), Universidad Nacional del Litoral, Santa Fe, Argentina; Facultad de Ciencias Médicas, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Iván Marcipar
- Laboratorio de Tecnología Inmunológica, Facultad de Bioquímica y Ciencias Biológicas (FBCB), Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Gabriel Cabrera
- Laboratorio de Tecnología Inmunológica, Facultad de Bioquímica y Ciencias Biológicas (FBCB), Universidad Nacional del Litoral, Santa Fe, Argentina.
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2
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Shrestha S, Hong CW. Extracellular Mechanisms of Neutrophils in Immune Cell Crosstalk. Immune Netw 2023; 23:e38. [PMID: 37970234 PMCID: PMC10643328 DOI: 10.4110/in.2023.23.e38] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 08/24/2023] [Accepted: 09/05/2023] [Indexed: 11/17/2023] Open
Abstract
Neutrophils are professional phagocytes that provide defense against invading pathogens through phagocytosis, degranulation, generation of ROS, and the formation of neutrophil extracellular traps (NETs). Although long been considered as short-lived effector cells with limited biosynthetic activity, recent studies have revealed that neutrophils actively communicate with other immune cells. Neutrophils employ various types of soluble mediators, including granules, cytokines, and chemokines, for crosstalk with immune cells. Additionally, ROS and NETs, major arsenals of neutrophils, are utilized for intercellular communication. Furthermore, extracellular vesicles play a crucial role as mediators of neutrophil crosstalk. In this review, we highlight the extracellular mechanisms of neutrophils and their roles in crosstalk with other cells.
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Affiliation(s)
- Sanjeeb Shrestha
- Department of Physiology, CMRI, School of Medicine, Kyungpook National University, Daegu 41944, Korea
| | - Chang-Won Hong
- Department of Physiology, CMRI, School of Medicine, Kyungpook National University, Daegu 41944, Korea
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3
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Kaminski VDL, Preite NW, Borges BM, Dos Santos BV, Calich VLG, Loures FV. The immunosuppressive activity of myeloid-derived suppressor cells in murine Paracoccidioidomycosis relies on Indoleamine 2,3-dioxygenase activity and Dectin-1 and TLRs signaling. Sci Rep 2023; 13:12391. [PMID: 37524886 PMCID: PMC10390561 DOI: 10.1038/s41598-023-39262-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 07/22/2023] [Indexed: 08/02/2023] Open
Abstract
Paracoccidioidomycosis (PCM) is a systemic mycosis with a high incidence in Latin America. Prior studies have demonstrated the significance of the enzyme Indoleamine 2,3-dioxygenase (IDO-1) in the immune regulation of PCM as well as the vital role of myeloid-derived suppressor cells (MDSCs) in moderating PCM severity. Additionally, Dectin-1 and Toll-Like Receptors (TLRs) signaling in cancer, infection, and autoimmune diseases have been shown to impact MDSC-IDO-1+ activity. To expand our understanding of MDSCs and the role of IDO-1 and pattern recognition receptors (PRRs) signaling in PCM, we generated MDSCs in vitro and administered an IDO-1 inhibitor before challenging the cells with Paracoccidioides brasiliensis yeasts. By co-culturing MDSCs with lymphocytes, we assessed T-cell proliferation to examine the influence of IDO-1 on MDSC activity. Moreover, we utilized specific antibodies and MDSCs from Dectin-1, TLR4, and TLR2 knockout mice to evaluate the effect of these PRRs on IDO-1 production by MDSCs. We confirmed the importance of these in vitro findings by assessing MDSC-IDO-1+ in the lungs of mice following the fungal infection. Taken together, our data show that IDO-1 expression by MDSCs is crucial for the control of T-cell proliferation, and the production of this enzyme is partially dependent on Dectin-1, TLR2, and TLR4 signaling during murine PCM.
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Affiliation(s)
- Valéria de Lima Kaminski
- Institute of Science and Technology, Federal University of São Paulo - UNIFESP, São José dos Campos, SP, Brazil
| | - Nycolas Willian Preite
- Institute of Science and Technology, Federal University of São Paulo - UNIFESP, São José dos Campos, SP, Brazil
| | - Bruno Montanari Borges
- Institute of Science and Technology, Federal University of São Paulo - UNIFESP, São José dos Campos, SP, Brazil
| | - Bianca Vieira Dos Santos
- Institute of Science and Technology, Federal University of São Paulo - UNIFESP, São José dos Campos, SP, Brazil
| | - Vera Lucia Garcia Calich
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo - USP, São Paulo, Brazil
| | - Flávio Vieira Loures
- Institute of Science and Technology, Federal University of São Paulo - UNIFESP, São José dos Campos, SP, Brazil.
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4
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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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Bhardwaj V, Ansell SM. Modulation of T-cell function by myeloid-derived suppressor cells in hematological malignancies. Front Cell Dev Biol 2023; 11:1129343. [PMID: 37091970 PMCID: PMC10113446 DOI: 10.3389/fcell.2023.1129343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 03/15/2023] [Indexed: 04/08/2023] Open
Abstract
Myeloid-derived suppressor cells (MDSCs) are pathologically activated neutrophils and monocytes that negatively regulate the immune response to cancer and chronic infections. Abnormal myelopoiesis and pathological activation of myeloid cells generate this heterogeneous population of myeloid-derived suppressor cells. They are characterized by their distinct transcription, phenotypic, biochemical, and functional features. In the tumor microenvironment (TME), myeloid-derived suppressor cells represent an important class of immunosuppressive cells that correlate with tumor burden, stage, and a poor prognosis. Myeloid-derived suppressor cells exert a strong immunosuppressive effect on T-cells (and a broad range of other immune cells), by blocking lymphocyte homing, increasing production of reactive oxygen and nitrogen species, promoting secretion of various cytokines, chemokines, and immune regulatory molecules, stimulation of other immunosuppressive cells, depletion of various metabolites, and upregulation of immune checkpoint molecules. Additionally, the heterogeneity of myeloid-derived suppressor cells in cancer makes their identification challenging. Overall, they serve as a major obstacle for many cancer immunotherapies and targeting them could be a favorable strategy to improve the effectiveness of immunotherapeutic interventions. However, in hematological malignancies, particularly B-cell malignancies, the clinical outcomes of targeting these myeloid-derived suppressor cells is a field that is still to be explored. This review summarizes the complex biology of myeloid-derived suppressor cells with an emphasis on the immunosuppressive pathways used by myeloid-derived suppressor cells to modulate T-cell function in hematological malignancies. In addition, we describe the challenges, therapeutic strategies, and clinical relevance of targeting myeloid-derived suppressor cells in these diseases.
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6
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The Role of Selective Flavonoids on Triple-Negative Breast Cancer: An Update. SEPARATIONS 2023. [DOI: 10.3390/separations10030207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023] Open
Abstract
Among the many types of breast cancer (BC), Triple-Negative Breast Cancer (TNBC) is the most alarming. It lacks receptors for the three main biomarkers: estrogen, progesterone, and human epidermal growth factor, hence the name TNBC. This makes its treatment a challenge. Surgical procedures and chemotherapy, performed either alone or in combination, seem to be the primary therapeutic possibilities; however, they are accompanied by severe complications. Currently, the formulation of drugs using natural products has been playing an important role in the pharmaceutical industries, owing to the drugs’ increased efficacies and significantly lessened side effects. Hence, treating TNBC with chemotherapeutic drugs developed using natural products such as flavonoids in the near future is much warranted. Flavonoids are metabolic compounds largely present in all plants, vegetables, and fruits, such as blueberries, onions, (which are widely used to make red wine,) chocolates, etc. Flavonoids are known to have enormous health benefits, such as anticancer, antiviral, anti-inflammatory, and antiallergic properties. They are known to arrest the cell cycle of the tumor cells and induces apoptosis by modulating Bcl-2, Bax, and Caspase activity. They show a considerable effect on cell proliferation and viability and angiogenesis. Various studies were performed at both the biochemical and molecular levels. The importance of flavonoids in cancer treatment and its methods of extraction and purification to date have been reported as individual publications. However, this review article explains the potentiality of flavonoids against TNBC in the preclinical levels and also emphasizes their molecular mechanism of action, along with a brief introduction to its methods of extraction, isolation, and purification in general, emphasizing the fact that its quantum of yield if enhanced and its possible synergistic effects with existing chemotherapeutics may pave the way for better anticancer agents of natural origin and significantly lessened side-effects.
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Shah NK, Xu P, Shan Y, Chen C, Xie M, Li Y, Meng Y, Shu C, Dong S, He J. MDSCs in pregnancy and pregnancy-related complications: an update†. Biol Reprod 2023; 108:382-392. [PMID: 36504233 DOI: 10.1093/biolre/ioac213] [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: 09/19/2022] [Revised: 11/15/2022] [Accepted: 11/25/2022] [Indexed: 12/14/2022] Open
Abstract
Maternal-fetal immune tolerance is a process that involves complex interactions of the immune system, and myeloid-derived suppressor cells have emerged as one of the novel immunomodulator in the maintenance of maternal-fetal immune tolerance. Myeloid-derived suppressor cells are myeloid progenitor cells with immunosuppressive activities on both innate and adaptive cells through various mechanisms. Emerging evidence demonstrates the accumulation of myeloid-derived suppressor cells during healthy pregnancy to establish maternal-fetal immune tolerance, placentation, and fetal-growth process. By contrast, the absence or decreased myeloid-derived suppressor cells in pregnancy complications like preeclampsia, preterm birth, stillbirth, and recurrent spontaneous abortion have been reported. Here, we have summarized the origin, mechanisms, and functions of myeloid-derived suppressor cells during pregnancy along with the recent advancements in this dynamic field. We also shed light on the immunomodulatory activity of myeloid-derived suppressor cells, which can be a foundation for potential therapeutic manipulation in immunological pregnancy complications.
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Affiliation(s)
- Neelam Kumari Shah
- Department of Obstetrics, Obstetrics and Gynaecology Center, The First Hospital of Jilin University, Jilin University, Changchun, China
| | - Peng Xu
- Department of Obstetrics, Obstetrics and Gynaecology Center, The First Hospital of Jilin University, Jilin University, Changchun, China
| | - Yanhong Shan
- Department of Obstetrics, Obstetrics and Gynaecology Center, The First Hospital of Jilin University, Jilin University, Changchun, China
| | - Chen Chen
- Department of Obstetrics, Obstetrics and Gynaecology Center, The First Hospital of Jilin University, Jilin University, Changchun, China
| | - Min Xie
- Department of Obstetrics, Obstetrics and Gynaecology Center, The First Hospital of Jilin University, Jilin University, Changchun, China
| | - Yan Li
- Department of Obstetrics, Obstetrics and Gynaecology Center, The First Hospital of Jilin University, Jilin University, Changchun, China
| | - Yizi Meng
- Department of Obstetrics, Obstetrics and Gynaecology Center, The First Hospital of Jilin University, Jilin University, Changchun, China
| | - Chang Shu
- Department of Obstetrics, Obstetrics and Gynaecology Center, The First Hospital of Jilin University, Jilin University, Changchun, China
| | - Shuai Dong
- Department of Obstetrics, Obstetrics and Gynaecology Center, The First Hospital of Jilin University, Jilin University, Changchun, China
- Key Laboratory of Organ Regeneration & Transplantation of Ministry of Education, National-Local Joint Engineering Laboratory of Animal Models for Human Diseases, The First Hospital of Jilin University, Jilin University, Changchun, China
| | - Jin He
- Department of Obstetrics, Obstetrics and Gynaecology Center, The First Hospital of Jilin University, Jilin University, Changchun, China
- Key Laboratory of Organ Regeneration & Transplantation of Ministry of Education, National-Local Joint Engineering Laboratory of Animal Models for Human Diseases, The First Hospital of Jilin University, Jilin University, Changchun, China
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8
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Esparvarinha M, Madadi S, Aslanian-Kalkhoran L, Nickho H, Dolati S, Pia H, Danaii S, Taghavi S, Yousefi M. Dominant immune cells in pregnancy and pregnancy complications: T helper cells (TH1/TH2, TH17/Treg cells), NK cells, MDSCs, and the immune checkpoints. Cell Biol Int 2023; 47:507-519. [PMID: 36335635 DOI: 10.1002/cbin.11955] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 10/27/2022] [Accepted: 10/28/2022] [Indexed: 11/08/2022]
Abstract
Pregnancy problems including recurrent pregnancy loss, repeated implantation failure and pre-eclampsia are common problems in the reproductive ages. Different reasons such as genetic, immunological, and environmental agents and also infections could develop these complications. In those cases in which the cause of the abortion is diagnosed, the chance of a successful pregnancy is increased by eliminating defective factors. However, in patients with unknown causes, there may be an imbalance in immune cells pattern. As a matter of fact, an inappropriate immune response is often associated with a failed pregnancy. Hence, the focus of treatment is to increase tolerance, not to suppress maternal immune system. These findings are linked to an elevated number of Treg cells and immune checkpoints through normal pregnancy. The present review discusses the balance of myeloid-derived suppressor cells, natural killer cells, T cells, and immune checkpoints, and also targeting them to maintain pregnancy and prevent associated complications.
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Affiliation(s)
- Mojgan Esparvarinha
- Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.,Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sahar Madadi
- Women's Reproductive Health Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Lida Aslanian-Kalkhoran
- Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.,Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hamid Nickho
- Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.,Immunology Research Center, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran
| | - Sanam Dolati
- Physical Medicine and Rehabilitation Research Center, Aging Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Helen Pia
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Shahla Danaii
- Gynecology Department, Eastern Azerbaijan ACECR ART Centre, Eastern Azerbaijan branch of ACECR, Tabriz, Iran
| | - Simin Taghavi
- Women's Reproductive Health Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mehdi Yousefi
- Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.,Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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Polcz VE, Rincon JC, Hawkins RB, Barrios EL, Efron PA, Moldawer LL, Larson SD. TRAINED IMMUNITY: A POTENTIAL APPROACH FOR IMPROVING HOST IMMUNITY IN NEONATAL SEPSIS. Shock 2023; 59:125-134. [PMID: 36383390 PMCID: PMC9957873 DOI: 10.1097/shk.0000000000002054] [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] [Indexed: 11/17/2022]
Abstract
ABSTRACT Sepsis, a dysregulated host immune response to infection, is one of the leading causes of neonatal mortality worldwide. Improved understanding of the perinatal immune system is critical to improve therapies to both term and preterm neonates at increased risk of sepsis. Our narrative outlines the known and unknown aspects of the human immune system through both the immune tolerant in utero period and the rapidly changing antigen-rich period after birth. We will highlight the key differences in innate and adaptive immunity noted through these developmental stages and how the unique immune phenotype in early life contributes to the elevated risk of overwhelming infection and dysregulated immune responses to infection upon exposure to external antigens shortly after birth. Given an initial dependence on neonatal innate immune host responses, we will discuss the concept of innate immune memory, or "trained immunity," and describe several potential immune modulators, which show promise in altering the dysregulated immune response in newborns and improving resilience to sepsis.
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Affiliation(s)
- Valerie E Polcz
- Department of Surgery and Sepsis and Critical Illness Research Center, University of Florida College of Medicine, Gainesville, Florida
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10
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Myeloid-derived suppressor cells: A new emerging player in endometriosis. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2023; 375:191-220. [PMID: 36967153 DOI: 10.1016/bs.ircmb.2022.11.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Endometriosis is a common gynecological disorder defined by the presence of endometrial tissue outside the uterus. This is commonly associated with chronic pelvic pain, infertility, and dysmenorrhea, which occurs in approximately 10% of women of reproductive age. Although the exact mechanism remains uncertain, it has been widely accepted to be an estrogen-dependent and inflammatory disease. Myeloid-derived suppressor cells (MDSCs) are a heterogeneous group of immune cells with immunosuppressive capacity and non-immunological functions. They have been found to be aggressively involved in the pathologies of various disorders. In regards to tumors, the functions of MDSCs have been profoundly shown to inhibit tumor immune response and to promote angiogenesis, tumor metastasis, fibrosis, and epithelial-mesenchymal transition (EMT). In recent years, the elevation of MDSCs in endometriosis was reported by several studies that provoke the assumption that MDSCs might exert similar roles to promote the development of endometriosis. Such that, precision treatments targeting MDSCs might be a promising direction for future study. Herein, we will review the research progress of MDSCs in endometriosis and its potential relevance to the pathogenesis, progression, and therapeutics strategy of endometriosis.
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11
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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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12
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Tim-3: An inhibitory immune checkpoint is associated with maternal-fetal tolerance and recurrent spontaneous abortion. Clin Immunol 2022; 245:109185. [DOI: 10.1016/j.clim.2022.109185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/27/2022] [Accepted: 11/07/2022] [Indexed: 11/13/2022]
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13
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Madani J, Aghebati-Maleki L, Gharibeh N, Pourakbari R, Yousefi M. Fetus, as an allograft, evades the maternal immunity. Transpl Immunol 2022; 75:101728. [DOI: 10.1016/j.trim.2022.101728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 10/09/2022] [Accepted: 10/09/2022] [Indexed: 11/05/2022]
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14
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Shibata M, Nanno K, Yoshimori D, Nakajima T, Takada M, Yazawa T, Mimura K, Inoue N, Watanabe T, Tachibana K, Muto S, Momma T, Suzuki Y, Kono K, Endo S, Takenoshita S. Myeloid-derived suppressor cells: Cancer, autoimmune diseases, and more. Oncotarget 2022; 13:1273-1285. [PMID: 36395389 PMCID: PMC9671473 DOI: 10.18632/oncotarget.28303] [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] [Indexed: 11/19/2022] Open
Abstract
Although cancer immunotherapy using immune checkpoint inhibitors (ICIs) has been recognized as one of the major treatment modalities for malignant diseases, the clinical outcome is not uniform in all cancer patients. Myeloid-derived suppressor cells (MDSCs) represent a heterogeneous population of immature myeloid cells that possess various strong immunosuppressive activities involving multiple immunocompetent cells that are significantly accumulated in patients who did not respond well to cancer immunotherapies. We reviewed the perspective of MDSCs with emerging evidence in this review. Many studies on MDSCs were performed in malignant diseases. Substantial studies on the participation of MDSCs on non-malignant diseases such as chronic infection and autoimmune diseases, and physiological roles in obesity, aging, pregnancy and neonates have yet to be reported. With the growing understanding of the roles of MDSCs, variable therapeutic strategies and agents targeting MDSCs are being investigated, some of which have been used in clinical trials. More studies are required in order to develop more effective strategies against MDSCs.
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Affiliation(s)
- Masahiko Shibata
- 1Department of Comprehensive Cancer Treatment and Research at Aizu, Fukushima Medical University, Fukushima, Japan,2Department of Surgery, Cancer Treatment Center, Aizu Chuo Hospital, Fukushima, Japan,3Department of Gastrointestinal Tract Surgery, Fukushima Medical University, Fukushima, Japan,4Aizu Oncology Consortium, Fukushima, Japan,Correspondence to:Masahiko Shibata, email:
| | - Kotaro Nanno
- 2Department of Surgery, Cancer Treatment Center, Aizu Chuo Hospital, Fukushima, Japan,5Department of Surgery, Nippon Medical School, Tokyo, Japan
| | - Daigo Yoshimori
- 2Department of Surgery, Cancer Treatment Center, Aizu Chuo Hospital, Fukushima, Japan,5Department of Surgery, Nippon Medical School, Tokyo, Japan
| | - Takahiro Nakajima
- 2Department of Surgery, Cancer Treatment Center, Aizu Chuo Hospital, Fukushima, Japan,3Department of Gastrointestinal Tract Surgery, Fukushima Medical University, Fukushima, Japan
| | - Makoto Takada
- 4Aizu Oncology Consortium, Fukushima, Japan,6Department of Surgery, Bange Kousei General Hospital, Fukushima, Japan
| | - Takashi Yazawa
- 2Department of Surgery, Cancer Treatment Center, Aizu Chuo Hospital, Fukushima, Japan,3Department of Gastrointestinal Tract Surgery, Fukushima Medical University, Fukushima, Japan,4Aizu Oncology Consortium, Fukushima, Japan
| | - Kousaku Mimura
- 3Department of Gastrointestinal Tract Surgery, Fukushima Medical University, Fukushima, Japan
| | - Norio Inoue
- 2Department of Surgery, Cancer Treatment Center, Aizu Chuo Hospital, Fukushima, Japan,3Department of Gastrointestinal Tract Surgery, Fukushima Medical University, Fukushima, Japan,4Aizu Oncology Consortium, Fukushima, Japan
| | - Takafumi Watanabe
- 7Department of Obstetrics and Gynecology, Fukushima Medical University, Fukushima, Japan
| | | | - Satoshi Muto
- 9Department of Chest Surgery, Fukushima Medical University, Fukushima, Japan
| | - Tomoyuki Momma
- 3Department of Gastrointestinal Tract Surgery, Fukushima Medical University, Fukushima, Japan,4Aizu Oncology Consortium, Fukushima, Japan
| | - Yoshiyuki Suzuki
- 1Department of Comprehensive Cancer Treatment and Research at Aizu, Fukushima Medical University, Fukushima, Japan,4Aizu Oncology Consortium, Fukushima, Japan,10Department of Radiation Oncology, Fukushima Medical University, Fukushima, Japan
| | - Koji Kono
- 1Department of Comprehensive Cancer Treatment and Research at Aizu, Fukushima Medical University, Fukushima, Japan,3Department of Gastrointestinal Tract Surgery, Fukushima Medical University, Fukushima, Japan,4Aizu Oncology Consortium, Fukushima, Japan
| | - Shungo Endo
- 11Department of Colorectoanal Surgery, Aizu Medical Center, Fukushima Medical University, Fukushima, Japan
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15
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Crump LS, Kines KT, Richer JK, Lyons TR. Breast cancers co-opt normal mechanisms of tolerance to promote immune evasion and metastasis. Am J Physiol Cell Physiol 2022; 323:C1475-C1495. [PMID: 36189970 PMCID: PMC9662806 DOI: 10.1152/ajpcell.00189.2022] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 09/22/2022] [Accepted: 09/27/2022] [Indexed: 11/22/2022]
Abstract
Normal developmental processes, such as those seen during embryonic development and postpartum mammary gland involution, can be reactivated by cancer cells to promote immune suppression, tumor growth, and metastatic spread. In mammalian embryos, paternal-derived antigens are at risk of being recognized as foreign by the maternal immune system. Suppression of the maternal immune response toward the fetus, which is mediated in part by the trophoblast, is critical to ensure embryonic survival and development. The postpartum mammary microenvironment also exhibits immunosuppressive mechanisms accompanying the massive cell death and tissue remodeling that occurs during mammary gland involution. These normal immunosuppressive mechanisms are paralleled during malignant transformation, where tumors can develop neoantigens that may be recognized as foreign by the immune system. To circumvent this, tumors can dedifferentiate and co-opt immune-suppressive mechanisms normally utilized during fetal tolerance and postpartum mammary involution. In this review, we discuss those similarities and how they can inform our understanding of cancer progression and metastasis.
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Affiliation(s)
- Lyndsey S Crump
- Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Kelsey T Kines
- Division of Medical Oncology, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado
- Young Women's Breast Cancer Translational Program, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Jennifer K Richer
- Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
- University of Colorado Cancer Center, Aurora, Colorado
| | - Traci R Lyons
- Division of Medical Oncology, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado
- Young Women's Breast Cancer Translational Program, University of Colorado Anschutz Medical Campus, Aurora, Colorado
- University of Colorado Cancer Center, Aurora, Colorado
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16
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Bizymi N, Matthaiou AM, Matheakakis A, Voulgari I, Aresti N, Zavitsanou K, Karasachinidis A, Mavroudi I, Pontikoglou C, Papadaki HA. New Perspectives on Myeloid-Derived Suppressor Cells and Their Emerging Role in Haematology. J Clin Med 2022; 11:jcm11185326. [PMID: 36142973 PMCID: PMC9504532 DOI: 10.3390/jcm11185326] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 09/05/2022] [Accepted: 09/08/2022] [Indexed: 12/03/2022] Open
Abstract
Myeloid-derived suppressor cells (MDSCs) are immature cells of myeloid origin that have gained researchers’ attention, as they constitute promising biomarkers and targets for novel therapeutic strategies (i.e., blockage of development, differentiation, depletion, and deactivation) in several conditions, including neoplastic, autoimmune, infective, and inflammatory diseases, as well as pregnancy, obesity, and graft rejection. They are characterised in humans by the typical immunophenotype of CD11b+CD33+HLA-DR–/low and immune-modulating properties leading to decreased T-cell proliferation, induction of T-regulatory cells (T-regs), hindering of natural killer (NK) cell functionality, and macrophage M2-polarisation. The research in the field is challenging, as there are still difficulties in defining cell-surface markers and gating strategies that uniquely identify the different populations of MDSCs, and the currently available functional assays are highly demanding. There is evidence that MDSCs display altered frequency and/or functionality and could be targeted in immune-mediated and malignant haematologic diseases, although there is a large variability of techniques and results between different laboratories. This review presents the current literature concerning MDSCs in a clinical point of view in an attempt to trigger future investigation by serving as a guide to the clinical haematologist in order to apply them in the context of precision medicine as well as the researcher in the field of experimental haematology.
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Affiliation(s)
- Nikoleta Bizymi
- Department of Haematology, University Hospital of Heraklion, 71500 Heraklion, Crete, Greece
- Haemopoiesis Research Laboratory, School of Medicine, University of Crete, 71003 Heraklion, Crete, Greece
- Laboratory of Molecular and Cellular Pneumonology, School of Medicine, University of Crete, 71003 Heraklion, Crete, Greece
| | - Andreas M. Matthaiou
- Laboratory of Molecular and Cellular Pneumonology, School of Medicine, University of Crete, 71003 Heraklion, Crete, Greece
- Respiratory Physiology Laboratory, Medical School, University of Cyprus, 2029 Nicosia, Cyprus
| | - Angelos Matheakakis
- Department of Haematology, University Hospital of Heraklion, 71500 Heraklion, Crete, Greece
- Haemopoiesis Research Laboratory, School of Medicine, University of Crete, 71003 Heraklion, Crete, Greece
| | - Ioanna Voulgari
- Department of Haematology, University Hospital of Heraklion, 71500 Heraklion, Crete, Greece
- Haemopoiesis Research Laboratory, School of Medicine, University of Crete, 71003 Heraklion, Crete, Greece
| | - Nikoletta Aresti
- Department of Haematology, University Hospital of Heraklion, 71500 Heraklion, Crete, Greece
- Haemopoiesis Research Laboratory, School of Medicine, University of Crete, 71003 Heraklion, Crete, Greece
| | - Konstantina Zavitsanou
- Department of Haematology, University Hospital of Heraklion, 71500 Heraklion, Crete, Greece
- Haemopoiesis Research Laboratory, School of Medicine, University of Crete, 71003 Heraklion, Crete, Greece
| | - Anastasios Karasachinidis
- Department of Haematology, University Hospital of Heraklion, 71500 Heraklion, Crete, Greece
- Haemopoiesis Research Laboratory, School of Medicine, University of Crete, 71003 Heraklion, Crete, Greece
| | - Irene Mavroudi
- Department of Haematology, University Hospital of Heraklion, 71500 Heraklion, Crete, Greece
- Haemopoiesis Research Laboratory, School of Medicine, University of Crete, 71003 Heraklion, Crete, Greece
| | - Charalampos Pontikoglou
- Department of Haematology, University Hospital of Heraklion, 71500 Heraklion, Crete, Greece
- Haemopoiesis Research Laboratory, School of Medicine, University of Crete, 71003 Heraklion, Crete, Greece
| | - Helen A. Papadaki
- Department of Haematology, University Hospital of Heraklion, 71500 Heraklion, Crete, Greece
- Haemopoiesis Research Laboratory, School of Medicine, University of Crete, 71003 Heraklion, Crete, Greece
- Correspondence: ; Tel.: +30-2810394637
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17
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Wang Q, Zhang X, Li C, Xiong M, Bai W, Sun S, Chen C, Zhang X, Li M, Zhao A. Intracellular Lipid Accumulation Drives the Differentiation of Decidual Polymorphonuclear Myeloid-Derived Suppressor Cells via Arachidonic Acid Metabolism. Front Immunol 2022; 13:868669. [PMID: 35664000 PMCID: PMC9159278 DOI: 10.3389/fimmu.2022.868669] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 04/21/2022] [Indexed: 11/13/2022] Open
Abstract
Decidual polymorphonuclear myeloid-derived suppressor cells (PMN-MDSCs) are essential to immune tolerance during pregnancy. A reduction in the number of these cells is associated with unexplained recurrent pregnancy loss (URPL). In our previous study, we reported that PMN-MDSCs are a group of mature neutrophils that are activated by the decidua microenvironment. In the present study, we show that the decidua microenvironment induces substantial lipid accumulation in neutrophils during their differentiation to PMN-MDSCs. Lower levels of lipid accumulation are detected in PMN-MDSCs from URPL patients, and the amount of lipid in the PMN-MDSCs is positively correlated with the proportion of PMN-MDSCs. Next, we demonstrate that decidua-derived IL6 with the presence of arachidonic acid upregulates fatty acid-binding protein 5 (FABP5) via the phosphorylation of signal transducer and activator of transcription 3 (STAT3). Fy -60ABP5 then continuously stimulates intracellular lipid accumulation. Increased intracellular lipid accumulation mediates arachidonic acid metabolism, a pathway that is significantly activated by the induction of the decidua microenvironment, to stimulate the synthesis of prostaglandin E2 (PGE2) and finally induce the differentiation of PMN-MDSCs. To summarize, decidua-derived IL6 facilitates the differentiation of PMN-MDSCs from neutrophils via the pSTAT3/FABP5/PGE2 pathway. Defects in the process may result in impaired differentiation and dysfunction of PMN-MDSCs in URPL. These findings enhance our understanding of the physiological mechanisms of immune tolerance in pregnancy and provide therapeutic options for URPL.
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Affiliation(s)
- Qiaohong Wang
- Department of Obstetrics and Gynecology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Gynecologic Oncology, Shanghai, China
| | - Xinyang Zhang
- Department of Obstetrics and Gynecology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Gynecologic Oncology, Shanghai, China
| | - Congcong Li
- Department of Obstetrics and Gynecology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Gynecologic Oncology, Shanghai, China
| | - Miao Xiong
- Department of Obstetrics and Gynecology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Gynecologic Oncology, Shanghai, China.,Department of Obstetrics and Gynecology, Shanghai Jiao Tong University School of Medicine Affiliated Sixth People's Hospital, Shanghai, China
| | - Wenxin Bai
- Department of Obstetrics and Gynecology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Gynecologic Oncology, Shanghai, China
| | - Si Sun
- Department of Obstetrics and Gynecology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Gynecologic Oncology, Shanghai, China
| | - Chao Chen
- Department of Obstetrics and Gynecology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Gynecologic Oncology, Shanghai, China
| | - Xiaoxin Zhang
- Department of Obstetrics and Gynecology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Gynecologic Oncology, Shanghai, China
| | - Mingyang Li
- Department of Obstetrics and Gynecology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Gynecologic Oncology, Shanghai, China
| | - Aimin Zhao
- Department of Obstetrics and Gynecology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Gynecologic Oncology, Shanghai, China
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18
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Dietz S, Schwarz J, Velic A, González-Menéndez I, Quintanilla-Martinez L, Casadei N, Marmé A, Poets CF, Gille C, Köstlin-Gille N. Human Leucocyte Antigen G and Murine Qa-2 Are Critical for Myeloid Derived Suppressor Cell Expansion and Activation and for Successful Pregnancy Outcome. Front Immunol 2022; 12:787468. [PMID: 35111157 PMCID: PMC8801456 DOI: 10.3389/fimmu.2021.787468] [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: 09/30/2021] [Accepted: 12/27/2021] [Indexed: 12/03/2022] Open
Abstract
During pregnancy, maternal immune system has to balance tightly between protection against pathogens and tolerance towards a semi-allogeneic organism. Dysfunction of this immune adaptation can lead to severe complications such as pregnancy loss, preeclampsia or fetal growth restriction. In the present study we analyzed the impact of the murine MHC class Ib molecule Qa-2 on pregnancy outcome in vivo. We demonstrate that lack of Qa-2 led to intrauterine growth restriction and increased abortion rates especially in late pregnancy accompanied by a disturbed trophoblast invasion and altered spiral artery remodeling as well as protein aggregation in trophoblast cells indicating a preeclampsia-like phenotype. Furthermore, lack of Qa-2 caused imbalanced immunological adaptation to pregnancy with altered immune cell and especially T-cell homeostasis, reduced Treg numbers and decreased accumulation and functional activation of myeloid-derived suppressor cells. Lastly, we show that application of sHLA-G reduced abortion rates in Qa-2 deficient mice by inducing MDSC. Our results highlight the importance of an interaction between HLA-G and MDSC for pregnancy success and the therapeutic potential of HLA-G for treatment of immunological pregnancy complications.
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Affiliation(s)
- Stefanie Dietz
- Department of Neonatology, Tuebingen University Children's Hospital, Tuebingen, Germany
| | - Julian Schwarz
- Department of Neonatology, Tuebingen University Children's Hospital, Tuebingen, Germany
| | - Ana Velic
- Interfaculty Institute for Cell Biology, Proteome Center Tuebingen (PCT), University of Tuebingen, Tübingen, Germany
| | | | | | - Nicolas Casadei
- Next Generation Sequencing (NGS) Competence Center Tuebingen (NCCT), Tuebingen, Germany; Institute of Medical Genetics and Applied Genomics, University of Tuebingen, Tuebingen, Germany
| | - Alexander Marmé
- Gynecology and Obstetrics Practice, Am Lustnauer Tor, Tuebingen, Germany
| | - Christian F Poets
- Department of Neonatology, Tuebingen University Children's Hospital, Tuebingen, Germany
| | - Christian Gille
- Department of Neonatology, Tuebingen University Children's Hospital, Tuebingen, Germany.,Department of Neonatology, Heidelberg University Children's Hospital, Heidelberg, Germany
| | - Natascha Köstlin-Gille
- Department of Neonatology, Tuebingen University Children's Hospital, Tuebingen, Germany.,Department of Neonatology, Heidelberg University Children's Hospital, Heidelberg, Germany
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19
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Bizymi N, Georgopoulou A, Mastrogamvraki N, Matheakakis A, Gontika I, Fragiadaki I, Mavroudi I, Papadaki HA. Myeloid-Derived Suppressor Cells (MDSC) in the Umbilical Cord Blood: Biological Significance and Possible Therapeutic Applications. J Clin Med 2022; 11:jcm11030727. [PMID: 35160177 PMCID: PMC8836851 DOI: 10.3390/jcm11030727] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/20/2022] [Accepted: 01/25/2022] [Indexed: 02/04/2023] Open
Abstract
Myeloid-derived suppressor cells (MDSCs) represent a heterogeneous population of myeloid cells that suppress immune responses in cancer, infection, and trauma. They mainly act by inhibiting T-cells, natural-killer cells, and dendritic cells, and also by inducing T-regulatory cells, and modulating macrophages. Although they are mostly associated with adverse prognosis of the underlying disease entity, they may display positive effects in specific situations, such as in allogeneic hematopoietic stem cell transplantation (HSCT), where they suppress graft-versus-host disease (GVHD). They also contribute to the feto-maternal tolerance, and in the fetus growth process, whereas several pregnancy complications have been associated with their defects. Human umbilical cord blood (UCB) is a source rich in MDSCs and their myeloid progenitor cells. Recently, a number of studies have investigated the generation, isolation, and expansion of UCB-MDSCs for potential clinical application associated with their immunosuppressive properties, such as GVHD, and autoimmune and inflammatory diseases. Given that a significant proportion of UCB units in cord blood banks are not suitable for clinical use in HSCT, they might be used as a significant source of MDSCs for research and clinical purposes. The current review summarizes the roles of MDSCs in the UCB, as well as their promising applications.
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Affiliation(s)
- Nikoleta Bizymi
- Department of Haematology, University Hospital of Heraklion, 71500 Heraklion, Crete, Greece; (N.B.); (A.M.); (I.M.)
- Haemopoiesis Research Laboratory, School of Medicine, University of Crete, 71003 Heraklion, Crete, Greece
| | - Anthie Georgopoulou
- Public Cord Blood Bank of Crete, University Hospital of Heraklion, 71500 Heraklion, Crete, Greece; (A.G.); (N.M.); (I.G.); (I.F.)
| | - Natalia Mastrogamvraki
- Public Cord Blood Bank of Crete, University Hospital of Heraklion, 71500 Heraklion, Crete, Greece; (A.G.); (N.M.); (I.G.); (I.F.)
| | - Angelos Matheakakis
- Department of Haematology, University Hospital of Heraklion, 71500 Heraklion, Crete, Greece; (N.B.); (A.M.); (I.M.)
- Haemopoiesis Research Laboratory, School of Medicine, University of Crete, 71003 Heraklion, Crete, Greece
| | - Ioanna Gontika
- Public Cord Blood Bank of Crete, University Hospital of Heraklion, 71500 Heraklion, Crete, Greece; (A.G.); (N.M.); (I.G.); (I.F.)
| | - Irene Fragiadaki
- Public Cord Blood Bank of Crete, University Hospital of Heraklion, 71500 Heraklion, Crete, Greece; (A.G.); (N.M.); (I.G.); (I.F.)
| | - Irene Mavroudi
- Department of Haematology, University Hospital of Heraklion, 71500 Heraklion, Crete, Greece; (N.B.); (A.M.); (I.M.)
- Haemopoiesis Research Laboratory, School of Medicine, University of Crete, 71003 Heraklion, Crete, Greece
- Public Cord Blood Bank of Crete, University Hospital of Heraklion, 71500 Heraklion, Crete, Greece; (A.G.); (N.M.); (I.G.); (I.F.)
| | - Helen A. Papadaki
- Department of Haematology, University Hospital of Heraklion, 71500 Heraklion, Crete, Greece; (N.B.); (A.M.); (I.M.)
- Haemopoiesis Research Laboratory, School of Medicine, University of Crete, 71003 Heraklion, Crete, Greece
- Public Cord Blood Bank of Crete, University Hospital of Heraklion, 71500 Heraklion, Crete, Greece; (A.G.); (N.M.); (I.G.); (I.F.)
- Correspondence: ; Tel.: +30-2810394637
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20
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Miller D, Motomura K, Galaz J, Gershater M, Lee ED, Romero R, Gomez-Lopez N. Cellular immune responses in the pathophysiology of preeclampsia. J Leukoc Biol 2022; 111:237-260. [PMID: 33847419 PMCID: PMC8511357 DOI: 10.1002/jlb.5ru1120-787rr] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Preeclampsia, defined as new-onset hypertension accompanied by proteinuria occurring at 20 weeks of gestation or later, is a leading cause of perinatal morbidity and mortality worldwide. The pathophysiology of this major multi-systemic syndrome includes defective deep placentation, oxidative stress, endothelial dysfunction, the presence of an anti-angiogenic state, and intravascular inflammation, among others. In this review, we provide a comprehensive overview of the cellular immune responses involved in the pathogenesis of preeclampsia. Specifically, we summarize the role of innate and adaptive immune cells in the maternal circulation, reproductive tissues, and at the maternal-fetal interface of women affected by this pregnancy complication. The major cellular subsets involved in the pathogenesis of preeclampsia are regulatory T cells, effector T cells, NK cells, monocytes, macrophages, and neutrophils. We also summarize the literature on those immune cells that have been less characterized in this clinical condition, such as γδ T cells, invariant natural killer T cells, dendritic cells, mast cells, and B cells. Moreover, we discuss in vivo studies utilizing a variety of animal models of preeclampsia to further support the role of immune cells in this disease. Finally, we highlight the existing gaps in knowledge of the immunobiology of preeclampsia that require further investigation. The goal of this review is to promote translational research leading to clinically relevant strategies that can improve adverse perinatal outcomes resulting from the obstetrical syndrome of preeclampsia.
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Affiliation(s)
- Derek Miller
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, Maryland, and Detroit, Michigan, USA,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Kenichiro Motomura
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, Maryland, and Detroit, Michigan, USA,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Jose Galaz
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, Maryland, and Detroit, Michigan, USA,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Meyer Gershater
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, Maryland, and Detroit, Michigan, USA,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA
| | - Eun D. Lee
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, Virginia, USA,Department of Obstetrics and Gynecology, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Roberto Romero
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, Maryland, and Detroit, Michigan, USA,Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, Michigan, USA,Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, Michigan, USA,Center for Molecular Medicine and Genetics, Wayne State University, Detroit, Michigan, USA,Detroit Medical Center, Detroit, Michigan, USA,Department of Obstetrics and Gynecology, Florida International University, Miami, Florida, USA
| | - Nardhy Gomez-Lopez
- Perinatology Research Branch, Division of Obstetrics and Maternal-Fetal Medicine, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, U.S. Department of Health and Human Services (NICHD/NIH/DHHS); Bethesda, Maryland, and Detroit, Michigan, USA,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan, USA,Department of Biochemistry, Microbiology, and Immunology, Wayne State University School of Medicine, Detroit, Michigan, USA
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21
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Zamorina SA, Shardina KY, Timganova VP, Bochkova MS, Uzhviyuk SV, Raev MB, Chereshnev VA. Effect of Alpha-Fetoprotein on Differentiation of Myeloid Supressor Cells. DOKL BIOCHEM BIOPHYS 2021; 501:434-437. [PMID: 34966967 DOI: 10.1134/s1607672921060077] [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: 04/30/2021] [Revised: 09/06/2021] [Accepted: 09/07/2021] [Indexed: 11/23/2022]
Abstract
The effect of recombinant alpha-fetoprotein (AFP) on human myeloid suppressor cell (MDSC) differentiation was studied in vitro in the presence of cytokines IL-6 (10 ng/mL) and GM-CSF (10 ng/mL). It was found that AFP at concentrations of 50 and 100 IU/mL increased the number of MDSC (CD33+ HLA-DR-/lowCD11b+) in culture. Analysis of MDSC subpopulations showed that the increase was due to monocytic M-MDSC (HLA-DR-/lowCD33+CD11b+CD14+CD66b-). There was no modulating effect of AFP on granulocytic PMN-MDSC (HLA-DR-/lowCD33+CD11b+CD14-CD66b+). The effects of recombinant AFP on MDSC differentiation were thus demonstrated for the first time.
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Affiliation(s)
- S A Zamorina
- Institute of Ecology and Genetics of Microorganisms, Ural Branch of the Russian Academy of Sciences, Branch of the PFIC Ural Branch of the Russian Academy of Sciences, Perm, Russia. .,Perm State National Research University, Perm, Russia.
| | - K Yu Shardina
- Institute of Ecology and Genetics of Microorganisms, Ural Branch of the Russian Academy of Sciences, Branch of the PFIC Ural Branch of the Russian Academy of Sciences, Perm, Russia
| | - V P Timganova
- Institute of Ecology and Genetics of Microorganisms, Ural Branch of the Russian Academy of Sciences, Branch of the PFIC Ural Branch of the Russian Academy of Sciences, Perm, Russia
| | - M S Bochkova
- Institute of Ecology and Genetics of Microorganisms, Ural Branch of the Russian Academy of Sciences, Branch of the PFIC Ural Branch of the Russian Academy of Sciences, Perm, Russia.,Perm State National Research University, Perm, Russia
| | - S V Uzhviyuk
- Institute of Ecology and Genetics of Microorganisms, Ural Branch of the Russian Academy of Sciences, Branch of the PFIC Ural Branch of the Russian Academy of Sciences, Perm, Russia
| | - M B Raev
- Institute of Ecology and Genetics of Microorganisms, Ural Branch of the Russian Academy of Sciences, Branch of the PFIC Ural Branch of the Russian Academy of Sciences, Perm, Russia.,Perm State National Research University, Perm, Russia
| | - V A Chereshnev
- Institute of Ecology and Genetics of Microorganisms, Ural Branch of the Russian Academy of Sciences, Branch of the PFIC Ural Branch of the Russian Academy of Sciences, Perm, Russia.,Perm State National Research University, Perm, Russia
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22
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Bert S, Ward EJ, Nadkarni S. Neutrophils in pregnancy: New insights into innate and adaptive immune regulation. Immunology 2021; 164:665-676. [PMID: 34287859 PMCID: PMC8561097 DOI: 10.1111/imm.13392] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 07/06/2021] [Accepted: 07/08/2021] [Indexed: 12/16/2022] Open
Abstract
The immunology of pregnancy has been the focus of many studies to better understand how the mother is able to tolerate the presence of a semi-allogeneic fetus. Far from the initial view of pregnancy as a state of immunosuppression, successful fetal development from implantation to birth is now known to be under the control of an intricate balance of immune cells. The balance between pro-inflammatory functions used to promote embryo implantation and placental development and immunosuppressive activity to maintain maternal tolerance of the fetus is an immunological phenotype unique to pregnancy, which is dependent on the time of gestation. Neutrophils are one of a host of innate immune cells detected at the maternal-fetal interface, but very little is known of their function. In this review, we explore the emerging functions of neutrophils during pregnancy and their interactions with and regulation of T cells, a key adaptive immune cell population essential for the establishment of fetal-maternal tolerance.
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Affiliation(s)
- Serena Bert
- William Harvey Research InstituteBarts and the London School of MedicineQueen Mary UniversityLondonUK
| | - Eleanor J. Ward
- William Harvey Research InstituteBarts and the London School of MedicineQueen Mary UniversityLondonUK
| | - Suchita Nadkarni
- William Harvey Research InstituteBarts and the London School of MedicineQueen Mary UniversityLondonUK
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23
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Scheurer J, Kitt K, Huber HJ, Fundel-Clemens K, Pflanz S, Debatin KM, Strauss G. Graft-Versus-Host Disease Prevention by In Vitro-Generated Myeloid-Derived Suppressor Cells Is Exclusively Mediated by the CD11b+CD11c+ MDSC Subpopulation. Front Immunol 2021; 12:754316. [PMID: 34721430 PMCID: PMC8551363 DOI: 10.3389/fimmu.2021.754316] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 09/21/2021] [Indexed: 01/09/2023] Open
Abstract
Myeloid-derived suppressor cells (MDSCs) are a heterogeneous population of myeloid progenitor cells that dampen overwhelming adaptive immune responses through multiple mechanisms and are recognized as an attractive novel immune intervention therapy for counteracting the destructive effects of graft-
versus
-host disease (GVHD) developing after allogeneic bone marrow transplantation (BMT). MDSCs can be produced in great numbers for cellular therapy, but they present a mixture of subsets whose functions in GVHD prevention are undefined. Here, we generated MDSCs in vitro from murine BM cells in the presence of GM-CSF and defined the integrin CD11c as a marker to subdivide MDSCs into two functional subgroups: CD11b+CD11c+ and CD11b+CD11c− MDSCs. Isolated CD11b+CD11c+ and CD11b+CD11c− MDSCs both inhibited alloantigen-stimulated T-cell proliferation in vitro, although CD11b+CD11c+ MDSCs were more efficient and expressed higher levels of different immunosuppressive molecules. Likewise, expression of surface markers such as MHC class II, CD80, CD86, or PD-L1 further delineated both subsets. Most importantly, only the adoptive transfer of CD11b+CD11c+ MDSCs into a single MHC class I-disparate allogeneic BMT model prevented GVHD development and strongly decreased disease-induced mortality, while CD11b+CD11c− MDSCs were totally ineffective. Surprisingly, allogeneic T-cell homing and expansion in lymphatic and GVHD target organs were not affected by cotransplanted CD11b+CD11c+ MDSCs indicating a clear contradiction between in vitro and in vivo functions of MDSCs. However, CD11b+CD11c+ MDSCs shifted immune responses towards type 2 immunity reflected by increased Th2-specific cytokine expression of allogeneic T cells. Induction of type 2 immunity was mandatory for GVHD prevention, since CD11b+CD11c+ MDSCs were ineffective if recipients were reconstituted with STAT6-deficient T cells unable to differentiate into Th2 cells. Most importantly, the beneficial graft-
versus
-tumor (GVT) effect was maintained in the presence of CD11b+CD11c+ MDSCs since syngeneic tumor cells were efficiently eradicated. Strong differences in the transcriptomic landscape of both subpopulations underlined their functional differences. Defining CD11b+CD11c+ MDSCs as the subset of in vitro-generated MDSCs able to inhibit GVHD development might help to increase efficiency of MDSC therapy and to further delineate relevant target molecules and signaling pathways responsible for GVHD prevention.
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Affiliation(s)
- Jasmin Scheurer
- Department of Pediatrics and Adolescent Medicine, University Medical Center Ulm, Ulm, Germany
| | - Kerstin Kitt
- Department of Cancer Immunology and Immune Modulation, Boehringer Ingelheim Pharma Co KG, Biberach an der Riss, Germany
| | - Heinrich J Huber
- Global Computational Biology and Digital Sciences, Boehringer Ingelheim Pharma Co KG, Biberach an der Riss, Germany.,Drug Discovery Services, Boehringer Ingelheim Regional Center Vienna (RCV) GmbH & Co KG, Vienna, Austria
| | - Katrin Fundel-Clemens
- Global Computational Biology and Digital Sciences, Boehringer Ingelheim Pharma Co KG, Biberach an der Riss, Germany
| | - Stefan Pflanz
- Department of Cancer Immunology and Immune Modulation, Boehringer Ingelheim Pharma Co KG, Biberach an der Riss, Germany
| | - Klaus-Michael Debatin
- Department of Pediatrics and Adolescent Medicine, University Medical Center Ulm, Ulm, Germany
| | - Gudrun Strauss
- Department of Pediatrics and Adolescent Medicine, University Medical Center Ulm, Ulm, Germany
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24
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Ďurčo F, Köstlin-Gille N, Poets CF, Gille C. Modulatory activity of adenosine on the immune response in cord and adult blood. Pediatr Res 2021; 90:989-997. [PMID: 33564128 DOI: 10.1038/s41390-020-01275-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 09/29/2020] [Accepted: 10/23/2020] [Indexed: 01/30/2023]
Abstract
BACKGROUND Neonatal sepsis is a leading cause of neonatal morbidity and mortality, associated with immunosuppression. Myeloid-derived suppressor cells (MDSCs) are cells with immunosuppressive activity, present in high amounts in cord blood. Mechanisms regulating MDSC expansion are incompletely understood. Adenosine is a metabolite with immunoregulatory effects that are elevated in cord blood. METHODS Impact of adenosine on peripheral and cord blood mononuclear cells (PBMCs and CBMCs) was analysed by quantification of ectonucleotidases and adenosine receptor expression, MDSC induction from PBMCs and CBMCs, their suppressive capacity on T cell proliferation and effector enzyme expression by flow cytometry. RESULTS Cord blood monocytes mainly expressed CD39, while cord blood T cells expressed CD73. Adenosine-induced MDSCs from PBMCs induced indoleamine-2,3-dioxygenase (IDO) expression and enhanced arginase I expression in monocytes. Concerted action of IDO and ArgI led to effective inhibition of T cell proliferation. In addition, adenosine upregulated inhibitory A3 receptors on monocytes. CONCLUSION Adenosine acts by inducing MDSCs and upregulating inhibitory A3 receptors, probably as a mode of autoregulation. Thus, adenosine contributes to immunosuppressive status and may be a target for immunomodulation during pre- and postnatal development. IMPACT Immune effector cells, that is, monocytes, T cells and MDSCs from cord blood express ectonucleotidases CD39 and CD73 and may thus serve as a source for adenosine as an immunomodulatory metabolite. Adenosine mediates its immunomodulatory properties in cord blood by inducing MDSCs, and by modulating the inhibitory adenosine A3 receptor on monocytes. Adenosine upregulates expression of IDO in MDSCs and monocytes potentially contributing to their suppressive activity.
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Affiliation(s)
- Filip Ďurčo
- Department of Neonatology, University Children's Hospital, Tuebingen, Germany
| | | | - Christian F Poets
- Department of Neonatology, University Children's Hospital, Tuebingen, Germany
| | - Christian Gille
- Department of Neonatology, University Children's Hospital, Tuebingen, Germany.
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25
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Dong S, Shah NK, He J, Han S, Xie M, Wang Y, Cheng T, Liu Z, Shu C. The abnormal expression of Tim-3 is involved in the regulation of myeloid-derived suppressor cells and its correlation with preeclampsia. Placenta 2021; 114:108-114. [PMID: 34509865 DOI: 10.1016/j.placenta.2021.08.060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 08/16/2021] [Accepted: 08/23/2021] [Indexed: 12/19/2022]
Abstract
INTRODUCTION Maternal immune system tolerance to the semi-allogeneic fetus is critical to a successful pregnancy. We previously reported that myeloid-derived suppressor cells (MDSC) was associated with maternal immune imbalance. T cell immunoglobulin and mucin-containing protein 3 (Tim-3)/Galectin-9 (Gal-9) pathway modulates function of various immune cells in maternal-fetal interface. However, the regulatory effects of Tim-3/Gal-9 signaling on MDSCs and its role in preeclampsia (PE) remain unclear. METHODS In the current study we investigated the expression of Tim-3 on MDSC in preeclampsia (PE) patients to further explore the pathogenesis of PE. RESULTS The proportion of Tim-3+ M-MDSC (monocytic MDSC) cells was higher in PE patients than in healthy control. Meanwhile, the protein expression of Gal-9, as the ligand of Tim-3, was increased in placenta of PE patients. M-MDSC also expressed a higher level of interferon-γ (IFN-γ) and a lower level of transforming growth factor-β (TGF-β) in PE. Furthermore, our study suggested that blocking Tim-3 could attenuate the inhibitory function of MDSC. DISCUSSION The abnormal expression of Tim-3 on MDSC might be involved in the pathogenesis of PE, and could be a marker to evaluate the immune function in PE.
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Affiliation(s)
- Shuai Dong
- Key Laboratory of Organ Regeneration & Transplantation of the Ministry of Education, Department of Obstetrics and Gynecology, The First Hospital of Jilin University, Jilin University, Changchun, Jilin, 130061, PR China
| | - Neelam Kumari Shah
- Key Laboratory of Organ Regeneration & Transplantation of the Ministry of Education, Department of Obstetrics and Gynecology, The First Hospital of Jilin University, Jilin University, Changchun, Jilin, 130061, PR China
| | - Jin He
- Key Laboratory of Organ Regeneration & Transplantation of the Ministry of Education, Department of Obstetrics and Gynecology, The First Hospital of Jilin University, Jilin University, Changchun, Jilin, 130061, PR China
| | - Shumei Han
- Department of Medical Administration, The First Hospital of Jilin University, Jilin University, Changchun, Jilin, 130021, PR China
| | - Min Xie
- Key Laboratory of Organ Regeneration & Transplantation of the Ministry of Education, Department of Obstetrics and Gynecology, The First Hospital of Jilin University, Jilin University, Changchun, Jilin, 130061, PR China
| | - Ying Wang
- Key Laboratory of Organ Regeneration & Transplantation of the Ministry of Education, Department of Obstetrics and Gynecology, The First Hospital of Jilin University, Jilin University, Changchun, Jilin, 130061, PR China
| | - Tingting Cheng
- Key Laboratory of Organ Regeneration & Transplantation of the Ministry of Education, Department of Obstetrics and Gynecology, The First Hospital of Jilin University, Jilin University, Changchun, Jilin, 130061, PR China
| | - Zitao Liu
- Hope Fertility Center, New York, NY10019, USA
| | - Chang Shu
- Key Laboratory of Organ Regeneration & Transplantation of the Ministry of Education, Department of Obstetrics and Gynecology, The First Hospital of Jilin University, Jilin University, Changchun, Jilin, 130061, PR China.
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26
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Mesenchymal stem cells enhance Treg immunosuppressive function at the fetal-maternal interface. J Reprod Immunol 2021; 148:103366. [PMID: 34492568 DOI: 10.1016/j.jri.2021.103366] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 08/01/2021] [Accepted: 08/20/2021] [Indexed: 12/29/2022]
Abstract
Well-regulated maternal-fetal immune tolerance is a prerequisite for normal pregnancy. Hyperactivated immune cells and overwhelming inflammatory responses trigger adverse gestation outcome, such as recurrent spontaneous abortion (RSA). Local exacerbation of immunomodulatory cells in maternal decidua is a critical event, tightly linked with fetus acceptance. Owning to the notable immunoregulatory potentials, mesenchymal stromal cells (MSCs) and regulatory T cells (Tregs) have been separately reported as promising therapeutic approaches for refractory RSA attributable to certain immune disorders. However, the cross-talk between MSCs and Tregs at the fetal-maternal interface remains poorly understood. Here we revealed, for the first time, that umbilical MSCs could induce expansion of decidual Foxp3+CD4+ T cells with upregulated production of IL-10 and TGF-β. Meanwhile, MSCs reinforced the immune suppressive functions of decidual Tregs (dTregs). More important, MSCs-instructed dTregs gained enhanced capacity to suppress Th1 and Th17 related inflammatory responses. In vivo data demonstrated that adoptive transfer of MSCs obviously promoted accumulation of Foxp3+ dTregs in lipopolysaccharide (LPS)-induced mice abortion model and spontaneous abortion model (DBA/2-mated female CBA/J mice). Furthermore, MSCs treatment effectively ameliorated absorption rate in both models. This study may offer a new insight for the application of MSCs and Tregs in clinical recurrent miscarriage.
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27
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Graham JJ, Longhi MS, Heneghan MA. T helper cell immunity in pregnancy and influence on autoimmune disease progression. J Autoimmun 2021; 121:102651. [PMID: 34020252 PMCID: PMC8221281 DOI: 10.1016/j.jaut.2021.102651] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 04/30/2021] [Accepted: 05/02/2021] [Indexed: 02/07/2023]
Abstract
Pregnancy presents the maternal immune system with a unique immunological challenge since it has to defend against pathogens while tolerating paternal allo-antigens expressed by fetal tissues. T helper (Th) cells play a central role in modulating immune responses and recent advances have defined distinct contributions of various Th cell subsets throughout each phase of human pregnancy, while dysregulation in Th responses show association with multiple obstetrical complications. In addition to localized decidual mechanisms, modulation of Th cell immunity during gestation is mediated largely by oscillations in sex hormone concentrations. Aberrant Th cell responses also underlie several autoimmune disorders while pregnancy-induced changes in the balance of Th cell immunity has been shown to exert favorable outcomes in the progression Th1 and Th17 driven autoimmune conditions only to be followed by post-partal exacerbations in disease.
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Affiliation(s)
- Jonathon J Graham
- Institute of Liver Studies, King's College Hospital, London, SE5 9RS, United Kingdom
| | - Maria Serena Longhi
- Department of Anesthesia, Critical Care & Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA, 02215, USA
| | - Michael A Heneghan
- Institute of Liver Studies, King's College Hospital, London, SE5 9RS, United Kingdom.
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28
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Li D, Zheng L, Zhao D, Xu Y, Wang Y. The Role of Immune Cells in Recurrent Spontaneous Abortion. Reprod Sci 2021; 28:3303-3315. [PMID: 34101149 PMCID: PMC8186021 DOI: 10.1007/s43032-021-00599-y] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 04/22/2021] [Indexed: 02/06/2023]
Abstract
Recurrent spontaneous abortion affects approximately 1–2% of women of childbearing, and describes a condition in which women suffer from three or more continuous spontaneous miscarriages. However, the origin of recurrent spontaneous abortion (RSA) remains unknown, preventing effective treatment and placing stress upon patients. It has been acknowledged that successful pregnancy necessitates balanced immune responses. Therefore, immunological aberrancy may be considered a root cause of poor pregnancy outcomes. Considerable published studies have investigated the relationship between various immune cells and RSA. Here, we review current knowledge on this area, and discuss the five main categories of immune cells involved in RSA; these include innate lymphocytes (ILC), macrophages, decidual dendritic cells (DCs), and T cells. Furthermore, we sought to summarize the impact of the multiple interactions of various immune cells on the emergence of RSA. A good understanding of pregnancy-induced immunological alterations could reveal new therapeutic strategies for favorable pregnancy outcomes.
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Affiliation(s)
- Dan Li
- Reproductive Medical Center, The Second Hospital of Jilin University, Changchun, China
| | - Lianwen Zheng
- Reproductive Medical Center, The Second Hospital of Jilin University, Changchun, China
| | | | - Ying Xu
- Reproductive Medical Center, The Second Hospital of Jilin University, Changchun, China
| | - Yeling Wang
- Departments of Cardiovascular Medicine, First Hospital, Jilin University, Changchun, 130000, China.
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29
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Shi M, Chen Z, Chen M, Liu J, Li J, Xing Z, Zhang X, Lv S, Li X, Zuo S, Feng S, Lin Y, Xiao G, Wang L, He Y. Continuous activation of polymorphonuclear myeloid-derived suppressor cells during pregnancy is critical for fetal development. Cell Mol Immunol 2021; 18:1692-1707. [PMID: 34099889 DOI: 10.1038/s41423-021-00704-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 05/08/2021] [Indexed: 02/06/2023] Open
Abstract
The maternal immune system is vital in maintaining immunotolerance to the semiallogeneic fetus for a successful pregnancy. Although studies have shown that myeloid-derived suppressor cells (MDSCs) play an important role in maintaining feto-maternal tolerance, little is known about the role of MDSCs in pregnancies with intrauterine growth retardation (IUGR). Here, we reported that the activation of polymorphonuclear myeloid-derived suppressor cells (PMN-MDSCs) during pregnancy was closely associated with fetal growth. In humans, class E scavenger receptor 1 (SR-E1), a distinct marker for human PMN-MDSCs, was used to investigate PMN-MDSC function during pregnancy. Continuous activation of SR-E1+ PMN-MDSCs was observed in all stages of pregnancy, accompanied by high cellular levels of ROS and arginase-1 activity, mediated through STAT6 signaling. However, SR-E1+ PMN-MDSCs in pregnancies with IUGR showed significantly lower suppressive activity, lower arginase-1 activity and ROS levels, and decreased STAT6 phosphorylation level, which were accompanied by an increase in inflammatory factors, compared with those in normal pregnancies. Moreover, the population of SR-E1+ PMN-MDSCs was negatively correlated with the adverse outcomes of newborns from pregnancies with IUGR. In mice, decreases in cell population, suppressive activity, target expression levels, and STAT6 phosphorylation levels were also observed in the pregnancies with IUGR compared with the normal pregnancies, which were rescued by the adoptive transfer of PMN-MDSCs from pregnant mice. Interestingly, the growth-promoting factors (GPFs) secreted by placental PMN-MDSCs in both humans and mice play a vital role in fetal development. These findings collectively support that PMN-MDSCs have another new role in pregnancy, which can improve adverse neonatal outcomes.
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Affiliation(s)
- Mengyu Shi
- Department of Immunology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Ziyang Chen
- Department of Immunology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Meiqi Chen
- Department of Immunology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Jingping Liu
- Department of Laboratory Medicine, the Third Affiliated Hospital of Southern Medical University, Southern Medical University, Guangzhou, China
| | - Jing Li
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zhe Xing
- Department of Immunology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Xiaogang Zhang
- Department of Immunology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Shuaijun Lv
- Department of Immunology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Xinyao Li
- Department of Immunology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Shaowen Zuo
- Department of Immunology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Shi Feng
- Department of Immunology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Ying Lin
- Department of Immunology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Gang Xiao
- Department of Laboratory Medicine, the Third Affiliated Hospital of Southern Medical University, Southern Medical University, Guangzhou, China.
| | - Liping Wang
- The First Affiliated Hospital of Shenzhen University, Reproductive Medicine Centre, Shenzhen Second People's Hospital, Shenzhen, China.
| | - Yumei He
- Department of Immunology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China. .,Department of Laboratory Medicine, the Third Affiliated Hospital of Southern Medical University, Southern Medical University, Guangzhou, China. .,Microbiome Medicine Center, Department of Laboratory Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China. .,Guangdong Provincial Key Laboratory of Single Cell Technology and Application, Southern Medical University, Guangzhou, China.
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30
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Matthews NC, Burton CS, Alfred A. Low-density neutrophils in chronic graft versus host disease (cGVHD) are primarily immature CD10 - and enhance T cell activation. Clin Exp Immunol 2021; 205:257-273. [PMID: 33932293 DOI: 10.1111/cei.13612] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 04/15/2021] [Accepted: 04/23/2021] [Indexed: 12/17/2022] Open
Abstract
Chronic graft-versus-host disease (cGVHD) is a frequent complication of allogeneic haematopoietic stem cell transplantation. Low density neutrophils (LDNs) in autoimmunity, which shares disease features with cGVHD, are proinflammatory, whereas those in cancer and sepsis suppress T cell immunity. Mature LDNs can be distinguished from immature LDNs on the basis of expression of CD10 and suppressive neutrophils can be identified using lectin-like oxidized low-density lipoprotein receptor-1 (LOX-1) expression. The functionality of LDNs in cGVHD has not been specifically investigated. Here, we have determined the relative contribution of immature and mature neutrophils to LDNs in cGVHD and assessed whether these were suppressive or potentially proinflammatory. Peripheral blood LDNs and normal density neutrophils (NDNs) from 30 cGVHD patients and NDNs from 10 healthy controls (HCs) were immunophenotyped by flow cytometry. The ability of LDNs and NDNs to influence T cell proliferation and cytokine production in co-cultures was quantified. To further characterize LDNs, their propensity to undergo constitutive apoptosis and differentiate ex vivo was assessed. LDNs were elevated in cGVHD versus HCs, heterogeneous in phenotype, with a predominance of immature CD10- cells in most patients, but some mature CD10+ LOX-1+ LDNs were also detected. LDNs enhanced autologous T cell proliferation, interleukin (IL)-6 and interferon (IFN)-γ production. LDN, but not NDN, CD10 expression was inversely correlated with LOX-1, which correlated with IL-6 production. LDNs resisted apoptosis and differentiated into antigen-presenting/neutrophil-hybrid-like cells, which co-expressed major histocompatibility complex (MHC) class II HLA-DR and immuno-inhibitory programmed cell death ligand 1 (PD-L1), but did not suppress T cell proliferation. These data suggest LDNs in cGVHD are predominantly immature, proinflammatory and may have pathogenic potential.
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Affiliation(s)
- Nick C Matthews
- Department of Haematology, The Rotherham NHS Foundation Trust, Rotherham, United Kingdom
| | - Charlotte S Burton
- Department of Haematology, The Rotherham NHS Foundation Trust, Rotherham, United Kingdom
| | - Arun Alfred
- Department of Haematology, The Rotherham NHS Foundation Trust, Rotherham, United Kingdom
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31
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Li C, Chen C, Kang X, Zhang X, Sun S, Guo F, Wang Q, Kou X, Bai W, Zhao A. Decidua-derived granulocyte macrophage colony-stimulating factor induces polymorphonuclear myeloid-derived suppressor cells from circulating CD15+ neutrophils. Hum Reprod 2021; 35:2677-2691. [PMID: 33067638 DOI: 10.1093/humrep/deaa217] [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: 03/10/2020] [Revised: 07/23/2020] [Indexed: 12/20/2022] Open
Abstract
STUDY QUESTION Do decidua-derived factors stimulate the conversion of circulating neutrophils to polymorphonuclear myeloid-derived suppressor cells (PMN-MDSCs) in early human pregnancy? SUMMARY ANSWER Circulating neutrophils can acquire PMN-MDSC-like phenotypes and function via phosphorylated signal transducer and activator of transcription 5/programmed death ligand 2 (pSTAT5/PD-L2) signalling after stimulation with decidua-derived granulocyte macrophage colony-stimulating factor (GM-CSF). WHAT IS KNOWN ALREADY PMN-MDSCs are an important immunoregulatory cell type in early pregnancy. Neutrophils are of high heterogeneity and plasticity and can polarize to immunosuppressive PMN-MDSCs upon stimulation. STUDY DESIGN, SIZE, DURATION For analysis of myeloid-derived suppressor cell (MDSC) subset proportions, 12 endometrium tissues and 12 peripheral blood samples were collected from non-pregnant women, and 40 decidua tissues and 16 peripheral blood samples were obtained from women with normal early pregnancy undergoing elective surgical pregnancy termination for nonmedical reasons with gestation age of 6-10 weeks. Twenty-nine decidua tissues were collected for isolation of CD15+ PMN-MDSCs. Twenty endometrium tissues and 30 decidua tissues were collected for cytokine analysis, immunohistochemistry or neutrophil stimulation. Peripheral blood samples were obtained from 36 healthy donors for isolation of CD3+ T cells and CD15+ neutrophils. PARTICIPANTS/MATERIALS, SETTING, METHODS The proportion of MDSC subsets in the decidua and peripheral blood of normal early pregnancy, endometrium and peripheral blood of non-pregnant women was analysed by flow cytometry. The phenotypes and function of decidual PMN-MDSCs and circulating neutrophils were compared by flow cytometry. Circulating neutrophils were stimulated with decidual explant supernatant (DES) and the phenotypes were measured by flow cytometry and immunofluorescence. The suppressive capacity of decidual PMN-MDSCs and DES-conditioned neutrophils was analysed by flow cytometry with or without anti-programmed cell death-1 (PD-1) antibody. Cytokines from DES and endometrial explant supernatant (EES) were detected by a Luminex assay. GM-CSF expression was determined by ELISA and immunohistochemistry. Neutrophils were stimulated with DES, EES, DES with anti-GM-CSF antibody or EES with GM-CSF. CD11b, lectin-like oxidized low-density lipoprotein receptor-1 (LOX-1), PD-L2 and pSTAT5 expression were measured by flow cytometry. MAIN RESULTS AND THE ROLE OF CHANCE The frequency of PMN-MDSCs was significantly increased in the decidua of early pregnancy compared with peripheral blood of non-pregnant women, the endometrium of non-pregnant women or peripheral blood during early pregnancy. Decidual PMN-MDSCs suppressed T-cell proliferation and cytokine production. Phenotypes of decidual PMN-MDSCs were similar to mature activated neutrophils. DES-induced CD11b, LOX-1, PD-L2 expression and STAT5 phosphorylation in neutrophils. The PD-L2 expression in neutrophils was dependent on STAT5 phosphorylation. Both decidual PMN-MDSCs and DES-conditioned neutrophils suppressed T-cell proliferation via PD-1 signalling. GM-CSF was up-regulated in the decidua and induced CD11b, LOX-1 and PD-L2 expression on neutrophils. DES significantly induced CD11b, LOX-1, PD-L2 expression and STAT5 phosphorylation. Anti-GM-CSF antibody remarkably blocked such stimulation in neutrophils. EES did not induce CD11b, LOX-1, PD-L2 expression or STAT5 phosphorylation, while GM-CSF treatment sufficiently stimulated CD11b, LOX-1, PD-L2 expression and STAT5 phosphorylation in neutrophils. LARGE SCALE DATA N/A. LIMITATIONS, REASONS FOR CAUTION The study was based on in vitro experiments and we were not able to evaluate neutrophils differentiation to PMN-MDSCs in other sites before entering the maternal-foetal interface due to the limited availability of human samples. This needs to be explored using murine models. WIDER IMPLICATIONS OF THE FINDINGS This is the first study demonstrating that decidual PMN-MDSCs are a group of immunoregulatory cells with mature status, and that neutrophils can be induced to a PMN-MDSC-like phenotype with decidua-derived GM-CSF via pSTAT5/PD-L2 signalling. This study indicates that GM-CSF can facilitate immune tolerance of early pregnancy through regulating PMN-MDSCs and further provides a potential role of GM-CSF in prevention and treatment for pregnancy complications. STUDY FUNDING/COMPETING INTEREST(S) This work was supported by the National Natural Science Foundation of China (81671481) and National Natural Science Foundation of China (81871179). All authors have no competing interests to declare.
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Affiliation(s)
- Congcong Li
- Department of Obstetrics and Gynecology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, PR China.,Shanghai Key Laboratory of Gynecologic Oncology, Shanghai, PR China
| | - Chao Chen
- Department of Obstetrics and Gynecology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, PR China.,Shanghai Key Laboratory of Gynecologic Oncology, Shanghai, PR China
| | - Xiaomin Kang
- Department of Reproductive Medical Center, The First People's Hospital of Yunnan Province, Kunming, Yunnan, PR China
| | - Xiaoxin Zhang
- Department of Obstetrics and Gynecology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, PR China
| | - Si Sun
- Department of Obstetrics and Gynecology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, PR China
| | - Feng Guo
- Department of Obstetrics and Gynecology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, PR China.,Shanghai Key Laboratory of Gynecologic Oncology, Shanghai, PR China
| | - Qiaohong Wang
- Department of Obstetrics and Gynecology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, PR China.,Shanghai Key Laboratory of Gynecologic Oncology, Shanghai, PR China
| | - Xi Kou
- Department of Obstetrics and Gynecology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, PR China
| | - Wenxin Bai
- Department of Obstetrics and Gynecology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, PR China
| | - Aimin Zhao
- Department of Obstetrics and Gynecology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, PR China.,Shanghai Key Laboratory of Gynecologic Oncology, Shanghai, PR China
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Cross-Talk among Polymorphonuclear Neutrophils, Immune, and Non-Immune Cells via Released Cytokines, Granule Proteins, Microvesicles, and Neutrophil Extracellular Trap Formation: A Novel Concept of Biology and Pathobiology for Neutrophils. Int J Mol Sci 2021; 22:ijms22063119. [PMID: 33803773 PMCID: PMC8003289 DOI: 10.3390/ijms22063119] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 03/13/2021] [Accepted: 03/16/2021] [Indexed: 12/14/2022] Open
Abstract
Polymorphonuclear neutrophils (PMNs) are traditionally regarded as professional phagocytic and acute inflammatory cells that engulf the microbial pathogens. However, accumulating data have suggested that PMNs are multi-potential cells exhibiting many important biological functions in addition to phagocytosis. These newly found novel activities of PMN include production of different kinds of cytokines/chemokines/growth factors, release of neutrophil extracellular traps (NET)/ectosomes/exosomes and trogocytosis (membrane exchange) with neighboring cells for modulating innate, and adaptive immune responses. Besides, PMNs exhibit potential heterogeneity and plasticity in involving antibody-dependent cellular cytotoxicity (ADCC), cancer immunity, autoimmunity, inflammatory rheumatic diseases, and cardiovascular diseases. Interestingly, PMNs may also play a role in ameliorating inflammatory reaction and wound healing by a subset of PMN myeloid-derived suppressor cells (PMN-MDSC). Furthermore, PMNs can interact with other non-immune cells including platelets, epithelial and endothelial cells to link hemostasis, mucosal inflammation, and atherogenesis. The release of low-density granulocytes (LDG) from bone marrow initiates systemic autoimmune reaction in systemic lupus erythematosus (SLE). In clinical application, identification of certain PMN phenotypes may become prognostic factors for severe traumatic patients. In the present review, we will discuss these newly discovered biological and pathobiological functions of the PMNs.
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Sanchez-Pino MD, Dean MJ, Ochoa AC. Myeloid-derived suppressor cells (MDSC): When good intentions go awry. Cell Immunol 2021; 362:104302. [PMID: 33592540 DOI: 10.1016/j.cellimm.2021.104302] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 01/08/2021] [Accepted: 01/10/2021] [Indexed: 02/07/2023]
Abstract
MDSC are a heterogeneous population of immature myeloid cells that are released by biological stress such as tissue damage and inflammation. Conventionally, MDSC are known for their detrimental role in chronic inflammation and neoplastic conditions. However, their intrinsic functions in immunoregulation, wound healing, and angiogenesis are intended to protect from over-reactive immune responses, maintenance of immunotolerance, tissue repair, and homeostasis. Paradoxically, under certain conditions, MDSC can impair protective immune responses and exacerbate the disease. The transition from protective to harmful MDSC is most likely driven by environmental and epigenetic mechanisms induced by prolonged exposure to unresolved inflammatory triggers. Here, we review several examples of the dual impact of MDSC in conditions such as maternal-fetal tolerance, self-antigens immunotolerance, obesity-associated cancer, sepsis and trauma. Moreover, we also highlighted the evidence indicating that MDSC have a role in COVID-19 pathophysiology. Finally, we have summarized the evidence indicating epigenetic mechanisms associated with MDSC function.
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Affiliation(s)
- Maria Dulfary Sanchez-Pino
- Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center School of Medicine, New Orleans, LA 70112, USA; Department of Genetics, Louisiana State University Health Sciences Center School of Medicine, New Orleans, LA 70112, USA.
| | - Matthew J Dean
- Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center School of Medicine, New Orleans, LA 70112, USA
| | - Augusto C Ochoa
- Stanley S. Scott Cancer Center, Louisiana State University Health Sciences Center School of Medicine, New Orleans, LA 70112, USA; Department of Pediatrics, Louisiana State University Health Sciences Center School of Medicine, New Orleans, LA 70112, USA
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Dietz S, Schwarz J, Rühle J, Schaller M, Fehrenbacher B, Marmé A, Schmid E, Peter A, Poets CF, Gille C, Köstlin-Gille N. Extracellular vesicles released by myeloid-derived suppressor cells from pregnant women modulate adaptive immune responses. Cell Immunol 2020; 361:104276. [PMID: 33517124 DOI: 10.1016/j.cellimm.2020.104276] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 12/18/2020] [Accepted: 12/22/2020] [Indexed: 12/19/2022]
Abstract
Immunological pregnancy complications are a main challenge in reproductive medicine. Mechanisms regulating the adaptation of the maternal immune system to pregnancy are incompletely understood and therapeutic options limited. Myeloid derived suppressor cells (MDSC) are immune-modulatory cells expanding during healthy pregnancy and seem to play a crucial role for maternal-fetal tolerance. Recent studies showed that exosomes produced by MDSC have immune-modulatory effects corresponding to their parental cells under different pathological conditions. Here, we investigated immunological effects of exosomes of GR-MDSC during pregnancy. Isolated GR-MDSC exosomes from peripheral blood of pregnant women were tested for functionality in different in vitro assays. We show that GR-MDSC exosomes exhibited profound immune-modulatory effects such as suppression of T-cell proliferation, T helper 2 (Th2)-cell polarization, induction of regulatory T-cells and inhibition of lymphocyte cytotoxicity. Our results confirm that MDSC-derived exosomes functionally correspond to their parental cells and identify them as an interesting therapeutic target for immunological pregnancy complications.
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Affiliation(s)
- Stefanie Dietz
- Tuebingen University Children's Hospital, Department of Neonatology, Tuebingen, Germany
| | - Julian Schwarz
- Tuebingen University Children's Hospital, Department of Neonatology, Tuebingen, Germany
| | - Jessica Rühle
- Tuebingen University Children's Hospital, Department of Neonatology, Tuebingen, Germany
| | - Martin Schaller
- Department of Dermatology, University of Tuebingen, Tuebingen, Germany
| | | | | | - Evi Schmid
- Department of Pediatric Surgery & Pediatric Urology, University of Tuebingen, Germany
| | - Andreas Peter
- German Centre for Diabetes Research (DZD), Tuebingen, Germany; Institute for Diabetes Research and Metabolic Diseases of the Helmholtz Centre Munich at the University of Tuebingen, Tuebingen, Germany; Institute for Clinical Chemistry and Pathobiochemistry, Department for Diagnostic Laboratory Medicine, University Hospital Tübingen, Germany
| | - Christian F Poets
- Tuebingen University Children's Hospital, Department of Neonatology, Tuebingen, Germany
| | - Christian Gille
- Tuebingen University Children's Hospital, Department of Neonatology, Tuebingen, Germany.
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Xu X, Zhou Y, Wei H. Roles of HLA-G in the Maternal-Fetal Immune Microenvironment. Front Immunol 2020; 11:592010. [PMID: 33193435 PMCID: PMC7642459 DOI: 10.3389/fimmu.2020.592010] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 10/05/2020] [Indexed: 12/11/2022] Open
Abstract
During pregnancy, the maternal uterus and fetus form a special microenvironment at the maternal-fetal interface to support fetal development. Extravillous trophoblasts (EVTs), differentiated from the fetus, invade into the decidua and interact with maternal cells. Human leukocyte antigen (HLA)-G is a non-classical MHC-I molecule that is expressed abundantly and specifically on EVTs in physiological conditions. Soluble HLA-G (sHLA-G) is also found in maternal blood, amniotic fluid, and cord blood. The abnormal expression and polymorphisms of HLA-G are related to adverse pregnancy outcomes such as preeclampsia (PE) and recurrent spontaneous abortion (RSA). Here we summarize current findings about three main roles of HLA-G during pregnancy, namely its promotion of spiral artery remodeling, immune tolerance, and fetal growth, all resulting from its interaction with immune cells. These findings are not only of great significance for the treatment of pregnancy-related diseases but also provide clues to tumor immunology research since HLA-G functions as a checkpoint in tumors.
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Affiliation(s)
- Xiuxiu Xu
- Hefei National Laboratory for Physical Sciences at Microscale, Division of Molecular Medicine, The CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences, University of Science and Technology of China, Hefei, China.,Institute of Immunology, University of Science and Technology of China, Hefei, China
| | - Yonggang Zhou
- Hefei National Laboratory for Physical Sciences at Microscale, Division of Molecular Medicine, The CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences, University of Science and Technology of China, Hefei, China.,Institute of Immunology, University of Science and Technology of China, Hefei, China.,The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Haiming Wei
- Hefei National Laboratory for Physical Sciences at Microscale, Division of Molecular Medicine, The CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences, University of Science and Technology of China, Hefei, China.,Institute of Immunology, University of Science and Technology of China, Hefei, China
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36
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Köstlin-Gille N, Gille C. Myeloid-Derived Suppressor Cells in Pregnancy and the Neonatal Period. Front Immunol 2020; 11:584712. [PMID: 33162999 PMCID: PMC7581934 DOI: 10.3389/fimmu.2020.584712] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 09/21/2020] [Indexed: 12/14/2022] Open
Abstract
During pregnancy, the immune systems of mother and offspring are challenged by their close adjacency to balance tolerance and rejection. After birth the neonate has to continue this balance towards its new environment by tolerating commensals while rejecting pathogens and towards its developing tissues to avoid inflammatory damage while overcoming immunosuppression. Our group was the first to link immunosuppressive features of myeloid derived suppressor cells (MDSC) to materno-fetal tolerance, neonatal susceptibility to infection and inflammation control. Here we summarize recent advances in this dynamic field.
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Affiliation(s)
| | - Christian Gille
- Department of Neonatology, University Children's Hospital Tuebingen, Tübingen, Germany
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37
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Köstlin-Gille N, Flaig LA, Ginzel M, Arand J, Poets CF, Gille C. Granulocytic Myeloid-Derived Suppressor Cells in Breast Milk (BM-MDSC) Correlate with Gestational Age and Postnatal Age and Are Influenced by Infant's Sex. Nutrients 2020; 12:nu12092571. [PMID: 32854237 PMCID: PMC7551580 DOI: 10.3390/nu12092571] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 08/18/2020] [Accepted: 08/24/2020] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Infections are the main cause of death in preterm infants. Causative agents often descend from the intestinal flora of the infected neonate, indicating insufficient protection by the mucosal barrier. Breast milk (BM) contains different subsets of immune cells. We recently showed that BM contains significant numbers of myeloid-derived suppressor cells (MDSC)-immune cells that actively suppress pro-inflammatory immune responses-and hypothesized that the transfer of BM-MDSC may modulate the mucosal immunity of the newborn. METHODS Percentages of MDSC in the BM from mothers of 86 preterm infants between 23 + 0 and 36 + 6 weeks of gestation during their first five postnatal weeks were analyzed by flow cytometry and correlated with maternal and infant characteristics. RESULTS Percentages of BM-MDSC positively correlated with gestational age and postnatal age. The expression of activation markers on BM-MDSC did not change with gestational age, but it decreased with postnatal age. Mothers who received antepartum tocolytics had lower percentages of BM-MDSC, and infant's sex strongly influenced percentages of BM-MDSC. CONCLUSION Our results point toward a role of BM-MDSC for immune regulation in the neonatal gut, making them a potential target of immune-based therapies shortly after birth.
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Jiang HH, Wang KX, Bi KH, Lu ZM, Zhang JQ, Cheng HR, Zhang MY, Su JJ, Cao YX. Sildenafil might impair maternal-fetal immunotolerance by suppressing myeloid-derived suppressor cells in mice. J Reprod Immunol 2020; 142:103175. [PMID: 32682164 DOI: 10.1016/j.jri.2020.103175] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 06/24/2020] [Accepted: 07/01/2020] [Indexed: 12/11/2022]
Abstract
Myeloid-derived suppressor cells (MDSCs) as an important population of immune cells were found to restrain T cell function, polarize T-helper cells (Th) 1/Th2 toward Th2 response and induce regulatory T cells (Tregs), therefore enhancing the immunotolerance during pregnancy. Sildenafil has been applied for poor endometrial quality in implantation failure patients. Nevertheless, investigations have shown that sildenafil could reduce MDSCs-dependent immunosuppression. Whether sildenafil affects embryo implantation by suppressing MDSCs? To address this question, using the mice model, we investigated the amounts of immune cells in peripheral blood and endometrial cells from control group (CG), sildenafil low-dose group (LDG) and high-dose group (HDG). We found that both treatment groups displayed a marked deficiency in polymorphonuclear (PMN)-MDSCs and Th2 from mice blood and endometrium as compared to these from CG. The frequency of Tregs in endometrium from HDG was lower than those from CG. Th1/Th2 ratio in both periphery and uterus from study groups showed a significant increase as compared to those from CG. By relevance analysis, we found that the level of Tregs positively correlated with the level of PMN-MDSCs, whereas the Th1/Th2 ratio negatively correlated with the frequency of PMN-MDSCs in uterus. Moreover, there was a positive relationship between the amount of blood PMN-MDSCs and endometrial PMN-MDSCs. These results suggest that we should carefully weigh the pros and cons of using sildenafil when applied to patients with poor endometrial receptivity.
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Affiliation(s)
- H H Jiang
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, No 218 Jixi Road, Hefei 230022, Anhui, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), No 81 Meishan Road, Hefei 230032, Anhui, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei 230032, Anhui, China; Anhui Province Key Laboratory of Reproductive Health and Genetics, No 81 Meishan Road, Hefei 230032, Anhui, China; Biopreservation and Artificial Organs, Anhui Provincial Engineering Research Center, Anhui Medical University, No 81 Meishan Road, Hefei 230032, Anhui, China
| | - K X Wang
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, No 218 Jixi Road, Hefei 230022, Anhui, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), No 81 Meishan Road, Hefei 230032, Anhui, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei 230032, Anhui, China; Anhui Province Key Laboratory of Reproductive Health and Genetics, No 81 Meishan Road, Hefei 230032, Anhui, China; Biopreservation and Artificial Organs, Anhui Provincial Engineering Research Center, Anhui Medical University, No 81 Meishan Road, Hefei 230032, Anhui, China
| | - K H Bi
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, No 218 Jixi Road, Hefei 230022, Anhui, China; Anhui Province Key Laboratory of Reproductive Health and Genetics, No 81 Meishan Road, Hefei 230032, Anhui, China; Biopreservation and Artificial Organs, Anhui Provincial Engineering Research Center, Anhui Medical University, No 81 Meishan Road, Hefei 230032, Anhui, China
| | - Z M Lu
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, No 218 Jixi Road, Hefei 230022, Anhui, China; Anhui Province Key Laboratory of Reproductive Health and Genetics, No 81 Meishan Road, Hefei 230032, Anhui, China; Biopreservation and Artificial Organs, Anhui Provincial Engineering Research Center, Anhui Medical University, No 81 Meishan Road, Hefei 230032, Anhui, China
| | - J Q Zhang
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, No 218 Jixi Road, Hefei 230022, Anhui, China; Anhui Province Key Laboratory of Reproductive Health and Genetics, No 81 Meishan Road, Hefei 230032, Anhui, China; Biopreservation and Artificial Organs, Anhui Provincial Engineering Research Center, Anhui Medical University, No 81 Meishan Road, Hefei 230032, Anhui, China
| | - H R Cheng
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, No 218 Jixi Road, Hefei 230022, Anhui, China; Anhui Province Key Laboratory of Reproductive Health and Genetics, No 81 Meishan Road, Hefei 230032, Anhui, China; Biopreservation and Artificial Organs, Anhui Provincial Engineering Research Center, Anhui Medical University, No 81 Meishan Road, Hefei 230032, Anhui, China
| | - M Y Zhang
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, No 218 Jixi Road, Hefei 230022, Anhui, China; Anhui Province Key Laboratory of Reproductive Health and Genetics, No 81 Meishan Road, Hefei 230032, Anhui, China; Biopreservation and Artificial Organs, Anhui Provincial Engineering Research Center, Anhui Medical University, No 81 Meishan Road, Hefei 230032, Anhui, China
| | - J J Su
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, No 218 Jixi Road, Hefei 230022, Anhui, China; Anhui Province Key Laboratory of Reproductive Health and Genetics, No 81 Meishan Road, Hefei 230032, Anhui, China; Biopreservation and Artificial Organs, Anhui Provincial Engineering Research Center, Anhui Medical University, No 81 Meishan Road, Hefei 230032, Anhui, China
| | - Y X Cao
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, the First Affiliated Hospital of Anhui Medical University, No 218 Jixi Road, Hefei 230022, Anhui, China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), No 81 Meishan Road, Hefei 230032, Anhui, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei 230032, Anhui, China; Anhui Province Key Laboratory of Reproductive Health and Genetics, No 81 Meishan Road, Hefei 230032, Anhui, China; Biopreservation and Artificial Organs, Anhui Provincial Engineering Research Center, Anhui Medical University, No 81 Meishan Road, Hefei 230032, Anhui, China.
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Li C, Zhang X, Kang X, Chen C, Guo F, Wang Q, Zhao A. Upregulated TRAIL and Reduced DcR2 Mediate Apoptosis of Decidual PMN-MDSC in Unexplained Recurrent Pregnancy Loss. Front Immunol 2020; 11:1345. [PMID: 32695113 PMCID: PMC7338483 DOI: 10.3389/fimmu.2020.01345] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Accepted: 05/27/2020] [Indexed: 12/29/2022] Open
Abstract
Myeloid-derived suppressor cells (MDSC), especially polymorphonuclear MDSC (PMN-MDSC), accumulate in maternal-fetal interface during pregnancy and are involved in the maintenance of immune tolerance. Decreased PMN-MDSC is associated with pregnancy complications such as unexplained recurrent pregnancy loss (URPL). In the present study we showed decreased PMN-MDSC in the URPL group compared with the normal pregnancy (NP) group, and PMN-MDSC was the major subset of MDSC in human decidua with potent immune suppression activity. We then performed gene expression profile and found that human decidual PMN-MDSC in the NP and URPL groups showed different gene and pathway signature, including apoptosis. Apoptosis of decidual PMN-MDSC was mediated by TNF-related apoptosis–induced ligand (TRAIL) in a Caspase 3 dependent manner. TRAIL was expressed in decidua and upregulated in decidua of the URPL group. Notably, of all the membrane TRAIL receptors, only DcR2 was down-regulated in PMN-MDSC in the URPL group. In vitro experiment demonstrated that DcR2 blockade sensitized PMN-MDSC to TRAIL-mediated apoptosis. Together, these data indicate that increased TRAIL and reduced DcR2 on PMN-MDSC sensitize PMN-MDSC response to TRAIL-induced apoptosis in the URPL group, which is responsible for decreased accumulation of PMN-MDSC in URPL.
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Affiliation(s)
- Congcong Li
- Department of Obstetrics and Gynecology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Gynecologic Oncology, Shanghai, China
| | - Xiaoxin Zhang
- Department of Obstetrics and Gynecology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xiaomin Kang
- Department of Reproductive Medical Center, The First People's Hospital of Yunnan Province, Kunming, China
| | - Chao Chen
- Department of Obstetrics and Gynecology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Gynecologic Oncology, Shanghai, China
| | - Feng Guo
- Department of Obstetrics and Gynecology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Gynecologic Oncology, Shanghai, China
| | - Qiaohong Wang
- Department of Obstetrics and Gynecology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Gynecologic Oncology, Shanghai, China
| | - Aimin Zhao
- Department of Obstetrics and Gynecology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.,Shanghai Key Laboratory of Gynecologic Oncology, Shanghai, China
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Zheng ZM, Yang HL, Lai ZZ, Wang CJ, Yang SL, Li MQ, Shao J. Myeloid-derived suppressor cells in obstetrical and gynecological diseases. Am J Reprod Immunol 2020; 84:e13266. [PMID: 32418253 DOI: 10.1111/aji.13266] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 05/08/2020] [Accepted: 05/11/2020] [Indexed: 12/15/2022] Open
Abstract
Myeloid-derived suppressor cells (MDSCs) are a heterogeneous group of myeloid-origin cells which have immunosuppressive activities in several conditions, such as cancer and inflammation. Recent research has also associated MDSCs with numerous obstetrical and gynecological diseases. During pregnancy, MDSCs accumulate to ensure maternal-fetal immune tolerance, whereas they are decreased in patients who suffer from early miscarriage or pre-eclampsia. While the etiology of endometriosis is still unknown, abnormal accumulation of MDSCs in the peripheral blood and peritoneal fluid, alongside an increased level of reactive oxygen species (ROS), has been observed in these patients, which is central to the cellular immune regulations by MDSCs. Additionally, the regulation of MDSCs observed in tumours is also applicable to gynecologic neoplasms, including ovarian cancer and cervical cancer. More recently, emerging evidence has shown that there are high levels of MDSCs in premature ovarian failure (POF) and in vitro fertilization (IVF), but the underlying mechanisms are unknown. In this review, the generation and mechanisms of MDSCs are summarized. In particular, the modulation of these cells in immune-related obstetrical and gynecological diseases is discussed, including potential treatment options targeting MDSCs.
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Affiliation(s)
- Zi-Meng Zheng
- Insitute of Obstetrics and Gynecology, Hospital of Obstetrics and Gynecology, Fudan University, Shanghai, China.,NHC Key Lab of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Hospital of Obstetrics and Gynecology, Fudan University, Shanghai, China
| | - Hui-Li Yang
- Insitute of Obstetrics and Gynecology, Hospital of Obstetrics and Gynecology, Fudan University, Shanghai, China.,NHC Key Lab of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Hospital of Obstetrics and Gynecology, Fudan University, Shanghai, China
| | - Zhen-Zhen Lai
- Insitute of Obstetrics and Gynecology, Hospital of Obstetrics and Gynecology, Fudan University, Shanghai, China.,NHC Key Lab of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Hospital of Obstetrics and Gynecology, Fudan University, Shanghai, China
| | - Cheng-Jie Wang
- Insitute of Obstetrics and Gynecology, Hospital of Obstetrics and Gynecology, Fudan University, Shanghai, China
| | - Shao-Liang Yang
- Insitute of Obstetrics and Gynecology, Hospital of Obstetrics and Gynecology, Fudan University, Shanghai, China.,NHC Key Lab of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Hospital of Obstetrics and Gynecology, Fudan University, Shanghai, China
| | - Ming-Qing Li
- Insitute of Obstetrics and Gynecology, Hospital of Obstetrics and Gynecology, Fudan University, Shanghai, China.,NHC Key Lab of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Hospital of Obstetrics and Gynecology, Fudan University, Shanghai, China.,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Hospital of Obstetrics and Gynecology, Fudan University, Shanghai, China
| | - Jun Shao
- Insitute of Obstetrics and Gynecology, Hospital of Obstetrics and Gynecology, Fudan University, Shanghai, China
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Moodley M, Moodley J, Naicker T. The Role of Neutrophils and Their Extracellular Traps in the Synergy of Pre-eclampsia and HIV Infection. Curr Hypertens Rep 2020; 22:41. [PMID: 32462480 DOI: 10.1007/s11906-020-01047-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
PURPOSE OF THE REVIEW In our innate immune system, neutrophils are the first cells to sense signals of infection and to proceed to kill the invading pathogen. This is mediated by their production of neutrophil extracellular traps (NETS) to entrap pathogenic micro-organisms, preventing their amplification and dissemination. Pre-eclampsia (PE) is the leading cause of global maternal mortality, yet to date, there is no cure nor a gold-standard diagnostic strategy. The purpose of this review is to discover the role of neutrophils in PE as early identification markers. Additionally, this review aims to explore the role of neutrophils in HIV-infected pregnancies with PE as a source of synergy. RECENT FINDINGS Recent findings demonstrate an elevation of neutrophils and neutrophil extracellular traps (NETs) in PE placentae. This is due to their activation by excessive release of syncytiotrophoblast microparticles (STBM). There is also an elevation of NETs in HIV-infected placentae-where histone H3 entraps HIV by binding to its glycoprotein envelope. Additionally, histones H1 and H2A inhibit HIV infection. It is interesting to note that women with both PE and HIV infection have supressed NETs. This review focuses on the role of neutrophils in the synergy of PE and HIV infection. It is plausible that the deregulation of NETs in the synergy of pre-eclamptic HIV-infected women is strategic for the entrapment of the HIV-1 virus. Finally, it is plausible that neutrophils and NETS may act as early biomarkers of PE development. Graphical abstract.
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Affiliation(s)
- Merantha Moodley
- Department of Obstetrics and Gynaecology, School of Clinical Medicine, College of Health Sciences, Nelson R Mandela School of Medicine, University of Kwa Zulu Natal, Durban, South Africa. .,Discipline of Optics and Imaging, Doris Duke Medical Research Institute, Nelson R Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa.
| | - Jagidesa Moodley
- Women's Health and HIV Research Group, Department of Obstetrics and Gynaecology, School of Clinical Medicine, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Thajasvarie Naicker
- Discipline of Optics and Imaging, Doris Duke Medical Research Institute, Nelson R Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
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Cao P, Sun Z, Feng C, Zhang J, Zhang F, Wang W, Zhao Y. Myeloid-derived suppressor cells in transplantation tolerance induction. Int Immunopharmacol 2020; 83:106421. [PMID: 32217462 DOI: 10.1016/j.intimp.2020.106421] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 02/29/2020] [Accepted: 03/16/2020] [Indexed: 02/06/2023]
Abstract
Myeloid-derived suppressor cells (MDSCs) are a group of heterogeneous cells derived from bone marrow. These cells are developed from immature myeloid cells and have strong negative immunomodulatory effects. In the context of pathology (such as tumor, autoimmune disease, trauma, and burns), MDSCs accumulate around tumor and inflammatory tissues, where their main role is to inhibit the function of effector T cells and promote the recruitment of regulatory T cells. MDSCs can be used in organ transplantation to regulate the immune responses that participate in rejection of the transplanted organ. This effect is achieved by increasing the production of MDSCs in vivo or transfusion of MDSCs induced in vitro to establish immune tolerance and prolong the survival of the graft. In this review, we discuss the efficacy of MDSCs in a variety of transplantation studies as well as the induction of immune tolerance to prevent transplant rejection through the use of common clinical immunosuppressants combined with MDSCs.
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Affiliation(s)
- Peng Cao
- Department of Urology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Zejia Sun
- Department of Urology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Chang Feng
- Transplantation Biology Research Division, State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Beijing 100101, China
| | - Jiandong Zhang
- Department of Urology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Feilong Zhang
- Department of Urology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Wei Wang
- Department of Urology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China.
| | - Yong Zhao
- Transplantation Biology Research Division, State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Beijing 100101, China
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Turkeltaub PC, Lockey RF, Holmes K, Friedmann E. Asthma and/or hay fever as predictors of fertility/impaired fecundity in U.S. women: National Survey of Family Growth. Sci Rep 2019; 9:18711. [PMID: 31822754 PMCID: PMC6904488 DOI: 10.1038/s41598-019-55259-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 11/26/2019] [Indexed: 01/25/2023] Open
Abstract
This study addresses whether asthma and/or hay fever predict fertility and impaired fecundity. The lifetime number of pregnancies (fertility) and spontaneous pregnancy losses (impaired fecundity) in 10,847 women representative of the U.S. population 15 to 44 years of age with histories of diagnosed asthma and/or hay fever are analyzed in the 1995 National Survey of Family Growth using multivariable Poisson regression with multiple covariates and adjustments for complex sampling. Smokers have significantly increased fertility compared to nonsmokers. Smokers with asthma only have significantly increased fertility compared to other smokers. Higher fertility is associated with impaired fecundity (ectopic pregnancy, miscarriage, stillbirth). Women with asthma (with and without hay fever) have significantly higher pregnancy losses than women without asthma. With increasing number of pregnancies, smokers have increased pregnancy losses compared to nonsmokers. Smokers, especially those with asthma only, have increased fertility and require special attention as to their family planning needs, reproductive health, and smoking cessation. Women with asthma, regardless of number of pregnancies, and smokers with higher numbers of pregnancies have high risk pregnancies that require optimal asthma/medical management prenatally and throughout pregnancy. Whether a proinflammatory asthma endotype underlies both the increased fertility and impaired fecundity associated with age and smoking is discussed.
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Affiliation(s)
| | - Richard F Lockey
- Division of Allergy & Immunology, University of South Florida College of Medicine, 13000 Bruce B. Downs Blvd, Tampa, Florida, 33613, USA
| | - Katie Holmes
- Organizational Systems and Adult Health, University of Maryland School of Nursing, 655 W. Lombard St., Baltimore, Maryland, 21201, USA
- The Hilltop Institute, University of Maryland Baltimore County, 1000 Hilltop Circle, Baltimore, Maryland, 21250, USA
| | - Erika Friedmann
- Organizational Systems and Adult Health, University of Maryland School of Nursing, 655 W. Lombard St., Baltimore, Maryland, 21201, USA
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Suk Lee Y, Davila E, Zhang T, Milmoe HP, Vogel SN, Bromberg JS, Scalea JR. Myeloid-derived suppressor cells are bound and inhibited by anti-thymocyte globulin. Innate Immun 2019; 25:46-59. [PMID: 30782043 PMCID: PMC6830891 DOI: 10.1177/1753425918820427] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Myeloid-derived suppressor cells (MDSCs) inhibit T cell responses and are
relevant to cancer, autoimmunity and transplant biology. Anti-thymocyte globulin
(ATG) is a commonly used T cell depletion agent, yet the effect of ATG on MDSCs
has not been investigated. MDSCs were generated in Lewis Lung Carcinoma 1
tumor-bearing mice. MDSC development and function were assessed in
vivo and in vitro with and without ATG
administration. T cell suppression assays, RT-PCR, flow cytometry and arginase
activity assays were used to assess MDSC phenotype and function. MDSCs increased
dramatically in tumor-bearing mice and the majority of splenic MDSCs were of the
polymorphonuclear subset. MDSCs potently suppressed T cell proliferation.
ATG-treated mice developed 50% fewer MDSCs and these MDSCs were significantly
less suppressive of T cell proliferation. In vitro, ATG
directly bound 99.6% of MDSCs. CCR7, L-selectin and LFA-1 were expressed by both
T cells and MDSCs, and binding of LFA-1 was inhibited by ATG pre-treatment.
Arg-1 and PD-L1 transcript expression were reduced 30–40% and arginase activity
decreased in ATG-pretreated MDSCs. MDSCs were bound and functionally inhibited
by ATG. T cells and MDSCs expressed common Ags which were also targets of ATG.
ATG may be helpful in tumor models seeking to suppress MDSCs. Alternatively, ATG
may inadvertently inhibit important T cell regulatory events in autoimmunity and
transplantation.
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Affiliation(s)
- Young Suk Lee
- 1 Department of Surgery, University of Maryland, Baltimore, USA
| | - Eduardo Davila
- 2 Department of Microbiology and Immunology, University of Maryland, Baltimore, USA
| | - Tianshu Zhang
- 1 Department of Surgery, University of Maryland, Baltimore, USA
| | - Hugh P Milmoe
- 1 Department of Surgery, University of Maryland, Baltimore, USA
| | - Stefanie N Vogel
- 2 Department of Microbiology and Immunology, University of Maryland, Baltimore, USA
| | - Jonathan S Bromberg
- 1 Department of Surgery, University of Maryland, Baltimore, USA.,2 Department of Microbiology and Immunology, University of Maryland, Baltimore, USA
| | - Joseph R Scalea
- 1 Department of Surgery, University of Maryland, Baltimore, USA.,2 Department of Microbiology and Immunology, University of Maryland, Baltimore, USA
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Dietz S, Schwarz J, Vogelmann M, Spring B, Molnár K, Orlikowsky TW, Wiese F, Holzer U, Poets CF, Gille C, Köstlin-Gille N. Cord blood granulocytic myeloid-derived suppressor cells impair monocyte T cell stimulatory capacity and response to bacterial stimulation. Pediatr Res 2019; 86:608-615. [PMID: 31349362 DOI: 10.1038/s41390-019-0504-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Revised: 05/20/2019] [Accepted: 07/15/2019] [Indexed: 11/09/2022]
Abstract
BACKGROUND Neonatal sepsis is a leading cause of perinatal morbidity and mortality. In comparison to adults, neonates exhibit a higher susceptibility to infections. Myeloid-derived suppressor cells (MDSCs) are myeloid cells with suppressive activity on other immune cells accumulating during foetal life and controlling inflammation in neonates. Most studies investigating the mechanisms for MDSC-mediated immune suppression have been focused on T-cells. Thus far, little is known about the role of MDSC for monocyte function. METHODS The impact of human cord blood MDSCs (CB-MDSCs) on monocytes was investigated in an in vitro model. CB-MDSCs were co-cultured with peripheral blood mononuclear cells and monocytes were analysed for expression of surface markers, T cell stimulatory and phagocytic capacity, as well as the production of intracellular cytokines by flow cytometry. RESULTS CB-MDSCs increased the expression of co-inhibitory molecules and decreased the expression of major histocompatibility complex class II molecules on monocytes, leading to an impaired T-cell stimulatory capacity. Upon bacterial stimulation, expression of phagocytosis receptors, phagocytosis rates and production of tumor necrosis factor-α by monocytes was diminished by CB-MDSCs. CONCLUSION We show that CB-MDSCs profoundly modulate monocyte functions, thereby indirectly impairing T-cell activation. Further research is needed to figure out if MDSCs could be a therapeutic target for inflammatory diseases in neonates like neonatal sepsis.
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Affiliation(s)
- Stefanie Dietz
- Department of Neonatology, Tübingen University Children's Hospital, Tübingen, Germany
| | - Julian Schwarz
- Department of Neonatology, Tübingen University Children's Hospital, Tübingen, Germany
| | - Margit Vogelmann
- Department of Neonatology, Tübingen University Children's Hospital, Tübingen, Germany
| | - Bärbel Spring
- Department of Neonatology, Tübingen University Children's Hospital, Tübingen, Germany
| | - Kriszta Molnár
- Department of Neonatology, Tübingen University Children's Hospital, Tübingen, Germany
| | | | - Franziska Wiese
- Department of Hematology and Oncology, Tübingen University Children's Hospital, Tuebingen, Germany
| | - Ursula Holzer
- Department of Hematology and Oncology, Tübingen University Children's Hospital, Tuebingen, Germany
| | - Christian F Poets
- Department of Neonatology, Tübingen University Children's Hospital, Tübingen, Germany
| | - Christian Gille
- Department of Neonatology, Tübingen University Children's Hospital, Tübingen, Germany.
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Ahmadi M, Mohammadi M, Ali-Hassanzadeh M, Zare M, Gharesi-Fard B. MDSCs in pregnancy: Critical players for a balanced immune system at the feto-maternal interface. Cell Immunol 2019; 346:103990. [PMID: 31703912 DOI: 10.1016/j.cellimm.2019.103990] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 09/08/2019] [Accepted: 09/23/2019] [Indexed: 02/06/2023]
Abstract
Myeloid-derived suppressor cells (MDSCs) have emerged as a new immune regulator at the feto-maternal interface. Although the phenotypes and functions of these cells were primarily studied in pathological conditions such as cancers and infections, new evidence has underscored their beneficial roles in homeostasis and physiological circumstances such as normal pregnancy. In this regard, studies have shown an increased number of MDSCs, particularly granulocytic MDSCs, at the feto-maternal interface. These cells participate in maintaining immunological tolerance between mother and semi-allograft fetus through various mechanisms. They further seem to play critical roles in placentation and fetus growth process. The absence or dysregulation of MDSCs during pregnancy have been reported in several pregnancy complications. These cells are also abundant in the cord blood of neonates so as to balance the immune responses and prevent aggressive inflammatory responses. The current review summarizes and organizes detailed data on MDSCs and their roles during pregnancy.
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Affiliation(s)
- Moslem Ahmadi
- Department of Immunology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mobin Mohammadi
- Cancer and Immunology Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran; Department of Immunology and Hematology, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Mohammad Ali-Hassanzadeh
- Department of Immunology, School of Medicine, Jiroft University of Medical Sciences, Jiroft, Iran; Department of Immunology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Maryam Zare
- Department of Immunology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Behrouz Gharesi-Fard
- Department of Immunology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran; Infertility Research Center, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
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47
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Puttmann K, Duggan M, Mortazavi A, Diaz DA, Carson III WE, Sundi D. The Role of Myeloid Derived Suppressor Cells in Urothelial Carcinoma Immunotherapy. Bladder Cancer 2019. [DOI: 10.3233/blc-190219] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Kathleen Puttmann
- Department of Urology, The Ohio State University Comprehensive Cancer Center, Columbus, OH, USA
| | - Megan Duggan
- Department of Surgery, Division of Surgical Oncology, The Ohio State University Comprehensive Cancer Center, Columbus, OH, USA
| | - Amir Mortazavi
- Department of Internal Medicine, Division of Medical Oncology, The Ohio State University Comprehensive Cancer Center, Columbus, OH, USA
| | - Dayssy Alexandra Diaz
- Department of Radiation Oncology, The Ohio State University Comprehensive Cancer Center, Columbus, OH, USA
| | - William E. Carson III
- Department of Surgery, Division of Surgical Oncology, The Ohio State University Comprehensive Cancer Center, Columbus, OH, USA
| | - Debasish Sundi
- Department of Urology, The Ohio State University Comprehensive Cancer Center, Columbus, OH, USA
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48
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Zhao L, Zheng X, Liu J, Zheng R, Yang R, Wang Y, Sun L. PPAR signaling pathway in the first trimester placenta from in vitro fertilization and embryo transfer. Biomed Pharmacother 2019; 118:109251. [PMID: 31351426 DOI: 10.1016/j.biopha.2019.109251] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 07/16/2019] [Accepted: 07/18/2019] [Indexed: 01/27/2023] Open
Abstract
Placenta is a temporary critical organ related to fetal development and pregnancy outcomes. And epidemiologic data demonstrate an increased risk of placental abnormality after in vitro fertilization and embryo transfer (IVF-ET). This study aims to explore the molecular mechanism for PPAR signaling pathway in placenta subjected to IVF-ET in the first trimester. Four first trimester placenta samples from double chorionic twins to single reduction in IVF-ET only because of oviducts factors. The other four control placenta samples from double chorionic twin were derived from those unplanned spontaneously conceived pregnancy after the legal termination. Affymetrix HG-U133 Plus 2.0 Array was performed to evaluate the global gene expressions. We confirmed microarray results from 10 significant differential genes using RT-qPCR. And 10 deregulated gene products were stained in the first trimester placenta by immunohistochemistry. These differentially expressed genes in IVF-ET placentas were submitted to functional annotation of clustering tools of bioinformatics resources and gene ontology enrichment analysis. Schematic representation of placental PPAR signaling pathway was labelled by Kyoto Encyclopedia of Genes and Genomes (KEGG). Analysis results of early placental PPAR signaling pathway gene expression from 8 women demonstrated 34 genes with a significant change in expression between IVF-ET and control group, 25 up-regulated; 9 down-regulated. KEGG pathway analysis indicated that IVF-ET manipulation extensively over-activated PPAR signaling pathway. Immune tolerance, trophoblast invasion, syncytia formation, lipid and glucose metabolism, inflammatory response and other complex biological functions were disturbed. RT-qPCR results and proteins staining intensity were consisted with microarray. Placental gene expressions and functions in PPAR signaling pathway were affected by IVF-ET treatment in the first trimester, which may offer a potential mechanism for the pathogenesis of various adverse outcomes during the perinatal period.
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Affiliation(s)
- Liang Zhao
- Department of Obstetrics and Gynecology, Beijing Jishuitan Hospital, No. 31, Xinjiekou East Street, Xicheng District, Beijing, 100035, China
| | - Xiuli Zheng
- Department of Obstetrics and Gynecology, Beijing Jishuitan Hospital, No. 31, Xinjiekou East Street, Xicheng District, Beijing, 100035, China
| | - Jingfang Liu
- Department of Obstetrics and Gynecology, Beijing Jishuitan Hospital, No. 31, Xinjiekou East Street, Xicheng District, Beijing, 100035, China
| | - Rong Zheng
- Department of Obstetrics and Gynecology, Beijing Jishuitan Hospital, No. 31, Xinjiekou East Street, Xicheng District, Beijing, 100035, China
| | - Rui Yang
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, No. 49, Huayuan North Road, Haidian District, Beijing, 100191, China
| | - Ying Wang
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing, No. 49, Huayuan North Road, Haidian District, Beijing, 100191, China
| | - Lifang Sun
- Department of Obstetrics and Gynecology, Beijing Jishuitan Hospital, No. 31, Xinjiekou East Street, Xicheng District, Beijing, 100035, China.
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49
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Silvestre-Roig C, Fridlender ZG, Glogauer M, Scapini P. Neutrophil Diversity in Health and Disease. Trends Immunol 2019; 40:565-583. [PMID: 31160207 PMCID: PMC7185435 DOI: 10.1016/j.it.2019.04.012] [Citation(s) in RCA: 277] [Impact Index Per Article: 55.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 04/26/2019] [Accepted: 04/28/2019] [Indexed: 12/17/2022]
Abstract
New evidence has challenged the outdated dogma that neutrophils are a homogeneous population of short-lived cells. Although neutrophil subpopulations with distinct functions have been reported under homeostatic and pathological conditions, a full understanding of neutrophil heterogeneity and plasticity is currently lacking. We review here current knowledge of neutrophil heterogeneity and diversity, highlighting the need for deep genomic, phenotypic, and functional profiling of the identified neutrophil subpopulations to determine whether these cells truly represent bona fide novel neutrophil subsets. We suggest that progress in understanding neutrophil heterogeneity will allow the identification of clinically relevant neutrophil subpopulations that may be used in the diagnosis of specific diseases and lead to the development of new therapeutic approaches.
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Affiliation(s)
- Carlos Silvestre-Roig
- Institute for Cardiovascular Prevention, Ludwig-Maximilians-University, Munich, Germany
| | - Zvi G Fridlender
- Institute of Pulmonary Medicine, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Michael Glogauer
- Faculty of Dentistry, University of Toronto, and Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Patrizia Scapini
- Department of Medicine, Section of General Pathology, School of Medicine, University of Verona, Verona, Italy.
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50
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Piechowski J. Plausibility of trophoblastic-like regulation of cancer tissue. Cancer Manag Res 2019; 11:5033-5046. [PMID: 31213916 PMCID: PMC6549421 DOI: 10.2147/cmar.s190932] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 04/30/2019] [Indexed: 01/15/2023] Open
Abstract
Background: Thus far, a well-established logical pattern of malignancy does not exist. The current approach to cancer properties is primarily descriptive with usually, for each of them, extensive analyses of the underlying associated biomolecular mechanisms. However, this remains a catalog and it would be valuable to determine the organizational chart that could account for their implementation, hierarchical links and input into tumor regulation. Hypothesis: Striking phenotypic similarities exist between trophoblast (invasive and expanding early placenta) and cancer regarding cell functions, logistics of development, means of protection and capacity to hold sway over the host organism. The concept of cancer cell trophoblastic-like transdifferentiation appears to be a rational proposal in an attempt to explain this analogy and provide a consistent insight into how cancer cells are functioning. Should this concept be validated, it could pave the way to promising research and therapeutic perspectives given that the trophoblastic properties are vital for the tumor while they are permanently epigenetically turned off in normal cells. Specifically targeting expression of the trophoblastic master genes could thereby be envisaged to jeopardize the tumor and its metastases without, in principle, inducing adverse side effects in the healthy tissues. Conclusion: A wide set of functional features of cancer tissue regulation, including some apparently paradoxical facts, was reviewed. Cancer cell misuse of physiological trophoblastic functions can clearly account for them, which identifies trophoblastic-like transdifferentiation as a likely key component of malignancy and makes it a potential relevant anticancer target.
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