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Abdelsalam K, Kaushik RS, Chase C. The Involvement of Neutrophil in the Immune Dysfunction Associated with BVDV Infection. Pathogens 2023; 12:pathogens12050737. [PMID: 37242407 DOI: 10.3390/pathogens12050737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 05/16/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023] Open
Abstract
Bovine viral diarrhea virus (BVDV) induces immune dysfunction that often results in a secondary bacterial infection in the infected animals. The underlying mechanism of BVDV-induced immune dysfunction is not well understood. The role of BVDV-infected macrophage-secreted factors was investigated. BVDV-infected monocyte-derived macrophage (MDM) supernatants down-regulated the expression of neutrophil L-selectin and CD18. Regardless of the biotype, phagocytic activity and oxidative burst were downregulated by BVDV-infected MDM supernatants. However, only supernatants from cytopathic (cp) BVDV down-regulated nitric oxide production and neutrophil extracellular traps (NET) induction. Our data suggested that BVDV-induced macrophage-secreted factors caused immune dysfunction in neutrophils. Unlike lymphocyte depletion, the negative impact on neutrophils seems to be specific to cp BVDV biotype. Interestingly the majority of modified live BVDV vaccines are based on cp strain of BVDV.
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Affiliation(s)
- Karim Abdelsalam
- Department of Veterinary and Biomedical Sciences, South Dakota State University, Brookings, SD 57007, USA
- Faculty of Veterinary Medicine, Department of Virology, Zagazig University, Zagazig 44519, Egypt
| | - Radhey S Kaushik
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD 57007, USA
| | - Christopher Chase
- Faculty of Veterinary Medicine, Department of Virology, Zagazig University, Zagazig 44519, Egypt
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2
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Jardine L, Schim van der Loeff I, Haq IJ, Sproat TDR. Gestational Development of the Human Immune System. Immunol Allergy Clin North Am 2023; 43:1-15. [PMID: 36410996 DOI: 10.1016/j.iac.2022.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Building an immune system is a monumental task critical to the survival of the fetus and newborn. A functional fetal immune system must complement the maternal immune system in handling in utero infection; abstain from damaging non-self-reactions that would compromise the materno-fetal interface; mobilize in response to infection and equip mucosal tissues for pathogen exposure at birth. There is growing appreciation that immune cells also have noncanonical roles in development and specifically may contribute to tissue morphogenesis. In this review we detail how hematopoietic and lymphoid organs jointly establish cellular constituents of the immune system; how these constituents are organized in 2 mucosal sites-gut and lung-where early life immune function has long-term consequences for health; and how exemplar diseases of prematurity and inborn errors of immunity reveal dominant pathways in prenatal immunity.
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Affiliation(s)
- Laura Jardine
- Biosciences Institute, Newcastle University, Faculty of Medical Sciences, Newcastle Upon Tyne NE2 4HH, United Kingdom; Haematology Department, Freeman Hospital, Newcastle Hospitals NHS Foundation Trust, Newcastle Upon Tyne, United Kingdom.
| | - Ina Schim van der Loeff
- Translational and Clinical Research Institute, Newcastle University, Faculty of Medical Sciences, Newcastle Upon Tyne NE2 4HH, United Kingdom
| | - Iram J Haq
- Translational and Clinical Research Institute, Newcastle University, Faculty of Medical Sciences, Newcastle Upon Tyne NE2 4HH, United Kingdom; Department of Paediatric Respiratory Medicine, Great North Children's Hospital, Newcastle Hospitals NHS Foundation Trust, Newcastle Upon Tyne, United Kingdom
| | - Thomas D R Sproat
- Neonatal Unit, Royal Victoria Infirmary, Newcastle Hospitals NHS Foundation Trust, Richardson Road, Newcastle Upon Tyne NE1 4LP, United Kingdom
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3
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Souza COS, Elias-Oliveira J, Pastore MR, Fontanari C, Rodrigues VF, Rodriguez V, Gardinassi LG, Faccioli LH. CD18 controls the development and activation of monocyte-to-macrophage axis during chronic schistosomiasis. Front Immunol 2022; 13:929552. [PMID: 36263057 PMCID: PMC9574367 DOI: 10.3389/fimmu.2022.929552] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 09/12/2022] [Indexed: 11/13/2022] Open
Abstract
Schistosomiasis is a neglected tropical disease caused by worms of the genus Schistosoma spp. The progression of disease results in intense tissue fibrosis and high mortality rate. After egg deposition by adult worms, the inflammatory response is characterized by the robust activation of type 2 immunity. Monocytes and macrophages play critical roles during schistosomiasis. Inflammatory Ly6Chigh monocytes are recruited from the blood to the inflammatory foci and differentiate into alternatively activated macrophages (AAMs), which promote tissue repair. The common chain of β2-integrins (CD18) regulates monocytopoiesis and mediates resistance to experimental schistosomiasis. There is still limited knowledge about mechanisms controlled by CD18 that impact monocyte development and effector cells such as macrophages during schistosomiasis. Here, we show that CD18low mice chronically infected with S. mansoni display monocyte progenitors with reduced proliferative capacity, resulting in the accumulation of the progenitor cell denominated proliferating-monocyte (pMo). Consequently, inflammatory Ly6Chigh and patrolling Ly6Clow monocytes are reduced in the bone marrow and blood. Mechanistically, low CD18 expression decreases Irf8 gene expression in pMo progenitor cells, whose encoded transcription factor regulates CSFR1 (CD115) expression on the cell surface. Furthermore, low CD18 expression affects the accumulation of inflammatory Ly6Chigh CD11b+ monocytes in the liver while the adoptive transference of these cells to infected-CD18low mice reduced the inflammatory infiltrate and fibrosis in the liver. Importantly, expression of Il4, Chil3l3 and Arg1 was downregulated, CD206+PD-L2+ AAMs were reduced and there were lower levels of IL-10 in the liver of CD18low mice chronically infected with S. mansoni. Overall, these findings suggest that CD18 controls the IRF8-CD115 axis on pMo progenitor cells, affecting their proliferation and maturation of monocytes. At the same time, CD18 is crucial for the appropriate polarization and function of AAMs and tissue repair during chronic schistosomiasis.
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Affiliation(s)
- Camila O. S. Souza
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Jefferson Elias-Oliveira
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Marcella R. Pastore
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
- Programa de Pós-Graduação em Biociências e Biotecnologia Aplicadas à Farmácia, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Ribeirão Preto, Brazil
| | - Caroline Fontanari
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Vanessa F. Rodrigues
- Departamento de Bioquímica e Imunologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Vanderlei Rodriguez
- Departamento de Bioquímica e Imunologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
| | - Luiz G. Gardinassi
- Departamento de Biociências e Tecnologia, Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, Brazil
| | - Lúcia H. Faccioli
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, Brazil
- *Correspondence: Lúcia H. Faccioli,
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4
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Bonilla MC, Quiros ON, Wendt M, Hennig-Pauka I, Mörgelin M, von Köckritz-Blickwede M, de Buhr N. New Insights into Neutrophil Extracellular Trap (NETs) Formation from Porcine Neutrophils in Response to Bacterial Infections. Int J Mol Sci 2022; 23:ijms23168953. [PMID: 36012224 PMCID: PMC9409244 DOI: 10.3390/ijms23168953] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 08/03/2022] [Accepted: 08/09/2022] [Indexed: 11/16/2022] Open
Abstract
Actinobacillus pleuropneumoniae (A.pp, Gram negative) and Streptococcus (S.) suis (Gram positive) can cause severe diseases in pigs. During infection, neutrophils infiltrate to counteract these pathogens with phagocytosis and/or neutrophil extracellular traps (NETs). NETs consist of a DNA-backbone spiked with antimicrobial components. The NET formation mechanisms in porcine neutrophils as a response to both of the pathogens are not entirely clear. The aim of this study was to investigate whether A.pp (serotype 2, C3656/0271/11) and S. suis (serotype 2, strain 10) induce NETs by NADPH oxidase- or CD18-dependent mechanisms and to characterize phenotypes of NETs in porcine neutrophils. Therefore, we investigated NET induction in porcine neutrophils in the presence and absence of NET inhibitors and quantified NETs after 3 h. Furthermore, NETosis and phagocytosis were investigated by transmission electron microscopy after 30 min to characterize different phenotypes. A.pp and S. suis induce NETs that are mainly ROS-dependent. A.pp induces NETs that are partially CD18-dependent. Thirty minutes after infection, both of the pathogens induced a vesicular NET formation with only slight differences. Interestingly, some neutrophils showed only NET-marker positive phagolysosomes, but no NET-marker positive vesicles. Other neutrophils showed vesicular NETs and only NET-marker negative phagolysosomes. In conclusion, both of the pathogens induce ROS-dependent NETs. Vesicular NETosis and phagocytosis occur in parallel in porcine neutrophils in response to S. suis serotype 2 and A.pp serotype 2.
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Affiliation(s)
- Marta C. Bonilla
- Department of Biochemistry, University of Veterinary Medicine Hannover, Foundation, 30559 Hannover, Germany
- Research Center for Emerging Infections and Zoonoses (RIZ), University of Veterinary Medicine Hannover, Foundation, 30559 Hannover, Germany
| | - Oriana N. Quiros
- Department of Biochemistry, University of Veterinary Medicine Hannover, Foundation, 30559 Hannover, Germany
- Research Center for Emerging Infections and Zoonoses (RIZ), University of Veterinary Medicine Hannover, Foundation, 30559 Hannover, Germany
- Escuela de Medicina Veterinaria, Universidad Nacional, Heredia 40104, Costa Rica
| | - Michael Wendt
- Clinic for Swine, Small Ruminants and Forensic Medicine and Ambulatory Service, University of Veterinary Medicine Hannover, Foundation, 30173 Hannover, Germany
| | - Isabel Hennig-Pauka
- Clinic for Swine, Small Ruminants and Forensic Medicine and Ambulatory Service, University of Veterinary Medicine Hannover, Foundation, 30173 Hannover, Germany
- Field Station for Epidemiology, University of Veterinary Medicine Hannover, 49456 Bakum, Germany
| | | | - Maren von Köckritz-Blickwede
- Department of Biochemistry, University of Veterinary Medicine Hannover, Foundation, 30559 Hannover, Germany
- Research Center for Emerging Infections and Zoonoses (RIZ), University of Veterinary Medicine Hannover, Foundation, 30559 Hannover, Germany
| | - Nicole de Buhr
- Department of Biochemistry, University of Veterinary Medicine Hannover, Foundation, 30559 Hannover, Germany
- Research Center for Emerging Infections and Zoonoses (RIZ), University of Veterinary Medicine Hannover, Foundation, 30559 Hannover, Germany
- Correspondence:
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Gu X, Guo H, Zeng C, Liu Y. Identification and validation of MicroRNA-mRNA Networks in Dorsal Root Ganglia after Peripheral Nerve Injury. Int J Med Sci 2022; 19:1275-1289. [PMID: 35928719 PMCID: PMC9346390 DOI: 10.7150/ijms.73113] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 06/27/2022] [Indexed: 11/05/2022] Open
Abstract
Changes in DRG after nerve injury involve neuronal damage, apoptosis, pain transmission, and activation of regenerative programs. It is unclear which genes and microRNAs may play a major role in this process. Therefore, this study performed a meta-analysis of previously published gene expression data to reveal the potential microRNA-mRNA network in dorsal root ganglia (DRG) after peripheral nerve injury. We searched 5 mRNA and 3 microRNA expression data sets, obtained 447 differentially expressed genes (DEGs) and 5 differentially expressed miRNAs, determined the biological pathways enriched by these DEGs, and further predicted new microRNA-mRNA interactions, such as miR-21/Hmg20a, miR-221/Ube2ql1, miR-30c-1/Rhoq, miR-500/Sema3c, and miR-551b/Cdc42se2. We verified these hub mRNA and miRNA in rats by qRT-PCR and found the results were consistent with the bioinformatics analysis. And we predicted transcription factors associated with these genes (gTFs) and TFs associated with these microRNAs (mTFs) and constructed the mTF-miRNA-gene-gTF regulatory network to further explore the molecular mechanism in DRG. Finally, we compared the DRG transcriptome after PNI to that of chronic constriction injury (CCI), and found that PNI caused greater damage to DRG compared to CCI. At the same time, the related mechanisms of pain caused by the two pathophysiological process may be different.
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Affiliation(s)
- Xinyi Gu
- Department of Orthopedics and Trauma, Peking University People's Hospital, Beijing, China, 100044
| | - Hao Guo
- Department of Foot and Ankle Surgery, Center for Orthopaedic Surgery, the Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,Orthopaedic Hospital of Guangdong Province, Guangzhou, China
| | - Canjun Zeng
- Department of Foot and Ankle Surgery, Center for Orthopaedic Surgery, the Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,Orthopaedic Hospital of Guangdong Province, Guangzhou, China
| | - Yijun Liu
- Department of Foot and Ankle Surgery, Center for Orthopaedic Surgery, the Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,Orthopaedic Hospital of Guangdong Province, Guangzhou, China
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6
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Bader A, Gao J, Rivière T, Schmid B, Walzog B, Maier-Begandt D. Molecular Insights Into Neutrophil Biology From the Zebrafish Perspective: Lessons From CD18 Deficiency. Front Immunol 2021; 12:677994. [PMID: 34557186 PMCID: PMC8453019 DOI: 10.3389/fimmu.2021.677994] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 08/16/2021] [Indexed: 12/26/2022] Open
Abstract
Neutrophils are key players in innate immunity and originate from the bone marrow of the adult mammalian organism. In mammals, mature neutrophils are released from the bone marrow into the peripheral blood where they circulate until their recruitment to sites of inflammation in a multistep adhesion cascade. Here, adhesion molecules of the β2 integrin family (CD11/CD18) are critically required for the initial neutrophil adhesion to the inflamed endothelium and several post-adhesion steps allowing their extravasation into the inflamed tissue. Within the mammalian tissue, interstitial neutrophil migration can occur widely independent of β2 integrins. This is in sharp contrast to neutrophil recruitment in zebrafish larvae (Danio rerio) where neutrophils originate from the caudal hematopoietic tissue and mainly migrate interstitially to sites of lesion upon the early onset of inflammation. However, neutrophils extravasate from the circulation to the inflamed tissue in zebrafish larvae at later-time points. Although zebrafish larvae are a widely accepted model system to analyze neutrophil trafficking in vivo, the functional impact of β2 integrins for neutrophil trafficking during acute inflammation is completely unknown in this model. In this study, we generated zebrafish with a genetic deletion of CD18, the β subunit of β2 integrins, using CRISPR/Cas9 technology. Sequence alignments demonstrated a high similarity of the amino acid sequences between zebrafish and human CD18 especially in the functionally relevant I-like domain. In addition, the cytoplasmic domain of CD18 harbors two highly conserved NXXF motifs suggesting that zebrafish CD18 may share functional properties of human CD18. Accordingly, CD18 knock-out (KO) zebrafish larvae displayed the key symptoms of patients suffering from leukocyte adhesion deficiency (LAD) type I due to defects in ITGB2, the gene for CD18. Importantly, CD18 KO zebrafish larvae showed reduced neutrophil trafficking to sites of sterile inflammation despite the fact that an increased number of neutrophils was detectable in the circulation. By demonstrating the functional importance of CD18 for neutrophil trafficking in zebrafish larvae, our findings shed new light on neutrophil biology in vertebrates and introduce a new model organism for studying LAD type I.
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Affiliation(s)
- Almke Bader
- Institute of Cardiovascular Physiology and Pathophysiology, Biomedical Center, Ludwig-Maximilians-Universität München, Planegg-Martinsried, Germany.,Walter Brendel Center of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Jincheng Gao
- Institute of Cardiovascular Physiology and Pathophysiology, Biomedical Center, Ludwig-Maximilians-Universität München, Planegg-Martinsried, Germany.,Walter Brendel Center of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Thibaud Rivière
- Institute of Cardiovascular Physiology and Pathophysiology, Biomedical Center, Ludwig-Maximilians-Universität München, Planegg-Martinsried, Germany.,Walter Brendel Center of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Bettina Schmid
- Fish Core Unit, German Center for Neurodegenerative Diseases (DZNE), Munich, Germany
| | - Barbara Walzog
- Institute of Cardiovascular Physiology and Pathophysiology, Biomedical Center, Ludwig-Maximilians-Universität München, Planegg-Martinsried, Germany.,Walter Brendel Center of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Daniela Maier-Begandt
- Institute of Cardiovascular Physiology and Pathophysiology, Biomedical Center, Ludwig-Maximilians-Universität München, Planegg-Martinsried, Germany.,Walter Brendel Center of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, Munich, Germany
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Bedos L, Grahn BH, Philibert H, Campbell J, Sandmeyer L. Histologic, immunohistochemical, and scanning electron microscopic comparison of pre-iridal monocellular and fibrovascular membranes in normal and glaucomatous canine globes. Vet Ophthalmol 2021; 24:361-373. [PMID: 33904639 DOI: 10.1111/vop.12894] [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: 06/28/2020] [Revised: 04/06/2021] [Accepted: 04/12/2021] [Indexed: 11/29/2022]
Abstract
OBJECTIVES (i) To evaluate immunohistochemical labeling of pre-iridal monocellular and fibrovascular membranes and (ii) describe the light and scanning electron microscopic (SEM) characteristics of these membranes in glaucomatous and normal/control canine globes. MATERIALS AND METHODS All globes were evaluated with light microscopy. Immunohistochemical labeling for CD18, Smooth muscle actin (SMA), and CD117 was completed on 40 canine globes with congenital/anterior segment dysgenesis-associated glaucoma (n = 10), primary/goniodysgenesis-associated glaucoma (n = 10), secondary glaucoma (n = 10), and normal/control globes (n = 10). SEM was completed on 10 globes: 5 with monocellular membranes, 3 with fibrovascular membranes, and 2 without a histologically detectable membrane. RESULTS Monocellular membranes were detected in all normal/control globes with light microscopy and appeared to be morphologically very similar to those in diseased globes. CD18 labeling was detected in 9/10 monocellular membranes in normal/control globes, 15/23 monocellular, and 7/8 fibrovascular membranes in globes with glaucoma. SMA and CD117 labeling was not detected in monocellular membranes of normal/control globes. SMA was expressed in 10/23 monocellular and 7/8 fibrovascular membranes of glaucomatous globes. CD117 was expressed in 7/23 monocellular and 5/8 fibrovascular membranes of glaucomatous globes. SEM of monocellular membranes revealed a continuous sheet of mostly spindle cells and few individual round cells that extended over the anterior iris face in normal/control and all glaucomatous globes. CONCLUSION Pre-iridal monocellular membranes are a normal component of the anterior iris surface, and CD18 immunoreactivity suggests some cells within these are of leukocytic origin. SMA and CD117 labeling of monocellular membranes in glaucomatous, but not normal/control globes, suggest metaplastic cellular change secondary to intraocular pathology related to glaucoma.
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Affiliation(s)
- Leila Bedos
- Department of Small Animal Clinical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, Canada.,Lloyd Veterinary Medical Center, Iowa State University, Ames, IA, USA
| | - Bruce H Grahn
- Department of Small Animal Clinical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, Canada.,3WCVM Veterinary Medical Centre, University of Saskatchewan, Saskatoon, SK, Canada
| | - Helene Philibert
- Department of Pathology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, Canada
| | - John Campbell
- 3WCVM Veterinary Medical Centre, University of Saskatchewan, Saskatoon, SK, Canada.,Department of Large Animal Clinical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, Canada
| | - Lynne Sandmeyer
- Department of Small Animal Clinical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, Canada.,3WCVM Veterinary Medical Centre, University of Saskatchewan, Saskatoon, SK, Canada
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8
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The Effects of Cryogenic Storage on Human Dental Pulp Stem Cells. Int J Mol Sci 2021; 22:ijms22094432. [PMID: 33922674 PMCID: PMC8122943 DOI: 10.3390/ijms22094432] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 04/19/2021] [Accepted: 04/21/2021] [Indexed: 12/11/2022] Open
Abstract
Dental pulp stem cells (DPSCs) are a type of easily accessible adult mesenchymal stem cell. Due to their ease of access, DPSCs show great promise in regenerative medicine. However, the tooth extractions from which DPSCs can be obtained are usually performed at a period of life when donors would have no therapeutic need of them. For this reason, it is imperative that successful stem cell storage techniques are employed so that these cells remain viable for future use. Any such techniques must result in high post-thaw stem cell recovery without compromising stemness, proliferation, or multipotency. Uncontrolled-rate freezing is not a technically or financially demanding technique compared to expensive and laborious controlled-rate freezing techniques. This study was aimed at observing the effect of uncontrolled-rate freezing on DPSCs stored for 6 and 12 months. Dimethyl sulfoxide at a concentration of 10% was used as a cryoprotective agent. Various features such as shape, proliferation capacity, phenotype, and multipotency were studied after DPSC thawing. The DPSCs did not compromise their stemness, viability, proliferation, or differentiating capabilities, even after one year of cryopreservation at −80 °C. After thawing, they retained their stemness markers and low-level expression of hematopoietic markers. We observed a size reduction in recovery DPSCs after one year of storage. This observation indicates that DPSCs can be successfully used in potential clinical applications, even after a year of uncontrolled cryopreservation.
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Thakur N, Evans H, Abdelsalam K, Farr A, Rajput MKS, Young AJ, Chase CCL. Bovine viral diarrhea virus compromises Neutrophil's functions in strain dependent manner. Microb Pathog 2020; 149:104515. [PMID: 32976968 DOI: 10.1016/j.micpath.2020.104515] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 09/03/2020] [Accepted: 09/03/2020] [Indexed: 12/27/2022]
Abstract
Bovine viral diarrhea virus (BVDV) infection is a major problem that results in economically important diseases of the cattle industry worldwide. The two major consequences of this disease are persistent infection and immune dysfunction. A number of studies have been done to determine the underline mechanisms of BVDV-induced immune dysfunction, in particular targeting antigen-presenting cells, T- and B- cells and cytokine gene expression. However, little research has focused Eon the effect of BVDV on neutrophils. Neutrophils are one of the predominant leukocytes circulating in blood and are considered the first line of defense in the innate immune system along with macrophages. Neutrophils not only eliminate the invading bacteria but also activate innate as well as adaptive immune responses. Therefore, compromised neutrophil function would affect both arms of immune system and caused immune suppression. In the current study, we used virus strains from both BVDV-1 and BVDV-2 species. Including a highly virulent non-cytopathic type 2a BVDV (ncp BVDV2a-1373), moderately virulent non-cytopathic type 2a (ncp BVDV2a 28508-5), and a pair of non-cytopathic type 1b BVDV (ncp BVDV1b TGAN) and cytopathic type 1b BVDV (cp BVDV1b TGAC) strain isolated from a case of mucosal disease. The highly virulent ncp BVDV2a-1373 significantly increased neutrophil apoptosis. However, none of the other BVDV strains affected neutrophil viability. All BVDV strains used significantly reduced CD18 and L-selectin expression on neutrophils as well as their oxidative burst and neutrophil extracellular traps (NET) activity. Cp BVDV significantly reduced neutrophil's phagocytic activity but ncp BVDV did not have any effect on it. On the other hand, ncp BVDV significantly increased neutrophil's CD14 expression and chemotactic activity while cp BVDV did not show any effect either on neutrophil's CD14 expression or on chemotactic activity. In conclusion, BVDV affected neutrophils variability and functional activity in strain dependent manner. Results of the current study will further help in understanding the pathophysiology of different BVDV strains.
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Affiliation(s)
- Neelu Thakur
- Department of Veterinary and Biomedical Sciences, South Dakota State University, Brookings, 7 South Dakota, USA
| | - Hannah Evans
- Department of Veterinary and Biomedical Sciences, South Dakota State University, Brookings, 7 South Dakota, USA
| | - Karim Abdelsalam
- Department of Veterinary and Biomedical Sciences, South Dakota State University, Brookings, 7 South Dakota, USA
| | - Amanda Farr
- Department of Veterinary and Biomedical Sciences, South Dakota State University, Brookings, 7 South Dakota, USA
| | - Mrigendra K S Rajput
- Department of Veterinary and Biomedical Sciences, South Dakota State University, Brookings, 7 South Dakota, USA; Department of Biological Sciences, Arkansas Tech University, Russellville, AR, USA
| | - Alan J Young
- Department of Veterinary and Biomedical Sciences, South Dakota State University, Brookings, 7 South Dakota, USA
| | - Christopher C L Chase
- Department of Veterinary and Biomedical Sciences, South Dakota State University, Brookings, 7 South Dakota, USA.
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10
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Mesa-Núñez C, Leon-Rico D, Aldea M, Damián C, Sanchez-Baltasar R, Sanchez R, Alberquilla O, Segovia JC, Bueren JA, Almarza E. The downregulated membrane expression of CD18 in CD34 + cells defines a primitive population of human hematopoietic stem cells. Stem Cell Res Ther 2020; 11:164. [PMID: 32345365 PMCID: PMC7189462 DOI: 10.1186/s13287-020-01672-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 03/18/2020] [Accepted: 04/08/2020] [Indexed: 01/06/2023] Open
Abstract
Background CD18 is the common beta subunit of β2 integrins, which are expressed on hematopoietic cells. β2 integrins are essential for cell adhesion and leukocyte trafficking. Methods Here we have analyzed the expression of CD18 in different subsets of human hematopoietic stem and progenitor cells (HSPCs) from cord blood (CB), bone marrow (BM), and mobilized peripheral blood (mPB) samples. CD34+ cells were classified into CD18high and CD18low/neg, and each of these populations was analyzed for the expression of HSPC markers, as well as for their clonogenity, quiescence state, and repopulating ability in immunodeficient mice. Results A downregulated membrane expression of CD18 was associated with a primitive hematopoietic stem cells (HSC) phenotype, as well as with a higher content of quiescent cells and multipotent colony-forming cells (CFCs). Although no differences in the short-term repopulating potential of CD18low/neg CD34+ and CD18high CD34+ cells were observed, CD18low/neg CD34+ cells were characterized by an enhanced long-term repopulating ability in NSG mice. Conclusions Overall, our results indicate that the downregulated membrane expression of CD18 characterizes a primitive population of human hematopoietic repopulating cells.
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Affiliation(s)
- Cristina Mesa-Núñez
- Division of Hematopoietic Innovative Therapies, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Av. Complutense 40, 28040, Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Melchor Fernández Almagro 3, 28029, Madrid, Spain.,Instituto de Investigación Sanitaria Fundación Jiménez Díaz (IIS- FJD, UAM), Av. de los Reyes Católicos 2, 28040, Madrid, Spain
| | - Diego Leon-Rico
- Division of Hematopoietic Innovative Therapies, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Av. Complutense 40, 28040, Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Melchor Fernández Almagro 3, 28029, Madrid, Spain.,Instituto de Investigación Sanitaria Fundación Jiménez Díaz (IIS- FJD, UAM), Av. de los Reyes Católicos 2, 28040, Madrid, Spain
| | - Montserrat Aldea
- Division of Hematopoietic Innovative Therapies, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Av. Complutense 40, 28040, Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Melchor Fernández Almagro 3, 28029, Madrid, Spain.,Instituto de Investigación Sanitaria Fundación Jiménez Díaz (IIS- FJD, UAM), Av. de los Reyes Católicos 2, 28040, Madrid, Spain
| | - Carlos Damián
- Division of Hematopoietic Innovative Therapies, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Av. Complutense 40, 28040, Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Melchor Fernández Almagro 3, 28029, Madrid, Spain.,Instituto de Investigación Sanitaria Fundación Jiménez Díaz (IIS- FJD, UAM), Av. de los Reyes Católicos 2, 28040, Madrid, Spain
| | - Raquel Sanchez-Baltasar
- Division of Hematopoietic Innovative Therapies, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Av. Complutense 40, 28040, Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Melchor Fernández Almagro 3, 28029, Madrid, Spain.,Instituto de Investigación Sanitaria Fundación Jiménez Díaz (IIS- FJD, UAM), Av. de los Reyes Católicos 2, 28040, Madrid, Spain
| | - Rebeca Sanchez
- Division of Hematopoietic Innovative Therapies, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Av. Complutense 40, 28040, Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Melchor Fernández Almagro 3, 28029, Madrid, Spain.,Instituto de Investigación Sanitaria Fundación Jiménez Díaz (IIS- FJD, UAM), Av. de los Reyes Católicos 2, 28040, Madrid, Spain
| | - Omaira Alberquilla
- Division of Hematopoietic Innovative Therapies, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Av. Complutense 40, 28040, Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Melchor Fernández Almagro 3, 28029, Madrid, Spain.,Instituto de Investigación Sanitaria Fundación Jiménez Díaz (IIS- FJD, UAM), Av. de los Reyes Católicos 2, 28040, Madrid, Spain
| | - José Carlos Segovia
- Division of Hematopoietic Innovative Therapies, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Av. Complutense 40, 28040, Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Melchor Fernández Almagro 3, 28029, Madrid, Spain.,Instituto de Investigación Sanitaria Fundación Jiménez Díaz (IIS- FJD, UAM), Av. de los Reyes Católicos 2, 28040, Madrid, Spain
| | - Juan Antonio Bueren
- Division of Hematopoietic Innovative Therapies, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Av. Complutense 40, 28040, Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Melchor Fernández Almagro 3, 28029, Madrid, Spain.,Instituto de Investigación Sanitaria Fundación Jiménez Díaz (IIS- FJD, UAM), Av. de los Reyes Católicos 2, 28040, Madrid, Spain
| | - Elena Almarza
- Division of Hematopoietic Innovative Therapies, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), Av. Complutense 40, 28040, Madrid, Spain. .,Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Melchor Fernández Almagro 3, 28029, Madrid, Spain. .,Instituto de Investigación Sanitaria Fundación Jiménez Díaz (IIS- FJD, UAM), Av. de los Reyes Católicos 2, 28040, Madrid, Spain.
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11
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Wang J, Li Q, Kong Y, Zhou F, Li J, Li W, Wang K, Wu T, Guan Y, Xie J, Wen T. Biosystems Study of the Molecular Networks Underlying Hippocampal Aging Progression and Anti-aging Treatment in Mice. Front Aging Neurosci 2018; 9:393. [PMID: 29311893 PMCID: PMC5735351 DOI: 10.3389/fnagi.2017.00393] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 11/13/2017] [Indexed: 12/22/2022] Open
Abstract
Aging progression is a process that an individual encounters as they become older, and usually results from a series of normal physiological changes over time. The hippocampus, which contributes to the loss of spatial and episodic memory and learning in older people, is closely related to the detrimental effects of aging at the morphological and molecular levels. However, age-related genetic changes in hippocampal molecular mechanisms are not yet well-established. To provide additional insight into the aging process, differentially-expressed genes of 3- versus 24- and 29-month old mice were re-analyzed. The results revealed that a large number of immune and inflammatory response-related genes were up-regulated in the aged hippocampus, and membrane receptor-associated genes were down-regulated. The down-regulation of transmembrane receptors may indicate the weaker perception of environmental exposure in older people, since many transmembrane proteins participate in signal transduction. In addition, molecular interaction analysis of the up-regulated immune genes indicated that the hub gene, Ywhae, may play essential roles in immune and inflammatory responses during aging progression, as well as during hippocampal development. Our biological experiments confirmed the conserved roles of Ywhae and its partners between human and mouse. Furthermore, comparison of microarray data between advanced-age mice treated with human umbilical cord blood plasma protein and the phosphate-buffered saline control showed that the genes that contribute to the revitalization of advanced-age mice are different from the genes induced by aging. These results implied that the revitalization of advanced-age mice is not a simple reverse process of normal aging progression. Our data assigned novel roles of genes during aging progression and provided further theoretic evidence for future studies exploring the underlying mechanisms of aging and anti-aging-related disease therapy.
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Affiliation(s)
- Jiao Wang
- Laboratory of Molecular Neural Biology, School of Life Sciences, Shanghai University, Shanghai, China
| | - Qian Li
- Laboratory of Molecular Neural Biology, School of Life Sciences, Shanghai University, Shanghai, China
| | - Yanyan Kong
- Position Emission Computed Tomography Center, Huashan Hospital, Fudan University, Shanghai, China
| | - Fangfang Zhou
- Laboratory of Molecular Neural Biology, School of Life Sciences, Shanghai University, Shanghai, China
| | - Jie Li
- Laboratory of Molecular Neural Biology, School of Life Sciences, Shanghai University, Shanghai, China
| | - Weihao Li
- Laboratory of Molecular Neural Biology, School of Life Sciences, Shanghai University, Shanghai, China
| | - Kai Wang
- Shanghai Key Laboratory of Molecular Andrology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Ting Wu
- Shanghai Stem Cell Group, Shanghai, China
| | - Yihui Guan
- Position Emission Computed Tomography Center, Huashan Hospital, Fudan University, Shanghai, China
| | - Jiang Xie
- School of Computer Engineering and Science, Shanghai University, Shanghai, China
| | - Tieqiao Wen
- Laboratory of Molecular Neural Biology, School of Life Sciences, Shanghai University, Shanghai, China
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12
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Meakin PJ, Morrison VL, Sneddon CC, Savinko T, Uotila L, Jalicy SM, Gabriel JL, Kang L, Ashford MLJ, Fagerholm SC. Mice Lacking beta2-Integrin Function Remain Glucose Tolerant in Spite of Insulin Resistance, Neutrophil Infiltration and Inflammation. PLoS One 2015; 10:e0138872. [PMID: 26405763 PMCID: PMC4583187 DOI: 10.1371/journal.pone.0138872] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 09/06/2015] [Indexed: 12/16/2022] Open
Abstract
Beta2-integrins are important in leukocyte trafficking and function, and are regulated through the binding of cytoplasmic proteins, such as kindlin-3, to their intracellular domain. Here, we investigate the involvement of beta2-integrins in the regulation of metabolic disease using mice where the kindlin-3 binding site in the beta2-integrin cytoplasmic tail has been mutated (TTT/AAA-beta2-integrin knock-in (KI) mice), leading to expressed but dysfunctional beta2-integrins and significant neutrophilia in vivo. Beta2-integrin KI mice fed on a high fat diet showed normal weight gain, and normal accumulation of macrophages and lymphocytes in white adipose tissue (WAT) and liver, but increased neutrophil numbers especially in WAT. In addition, beta2-integrin KI mice fed on a high fat diet showed significantly increased peripheral insulin resistance in response to high-fat feeding. However, this was associated with improved glucose disposal following glucose load. Interestingly, beta2-integrin KI neutrophils produced more elastase in vitro, in response to stimulation. Beta2-integrin KI mice displayed variability of tissue inflammatory status, with liver and WAT exhibiting little or no difference in inflammation compared to high fat fed controls, whereas skeletal muscle demonstrated a raised inflammatory profile in association with higher elastase levels and diminished signalling through the IRS1-PKB pathway. In conclusion, although expression of dysfunctional beta2-integrins increased neutrophil production and infiltration into tissue, skeletal muscle was the most affected tissue exhibiting evidence of higher neutrophil activity and insulin resistance. Thus, beta2-integrins modulate glucose homeostasis during high fat feeding predominantly through actions on skeletal muscle to affect metabolic phenotype in vivo.
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Affiliation(s)
- Paul J. Meakin
- Divison of Cardiovascular & Diabetes Medicine, School of Medicine, University of Dundee, Ninewells Hospital and Medical School, Dundee, United Kingdom
| | - Vicky L. Morrison
- Division of Cancer Research, School of Medicine, University of Dundee, Ninewells Hospital and Medical School, Dundee, United Kingdom
- Institute of Biotechnology, University of Helsinki, Helsinki, Finland
| | - Claire C. Sneddon
- Divison of Cardiovascular & Diabetes Medicine, School of Medicine, University of Dundee, Ninewells Hospital and Medical School, Dundee, United Kingdom
| | - Terhi Savinko
- Institute of Biotechnology, University of Helsinki, Helsinki, Finland
| | - Liisa Uotila
- Institute of Biotechnology, University of Helsinki, Helsinki, Finland
| | - Susan M. Jalicy
- Divison of Cardiovascular & Diabetes Medicine, School of Medicine, University of Dundee, Ninewells Hospital and Medical School, Dundee, United Kingdom
| | - Jennie L. Gabriel
- Divison of Cardiovascular & Diabetes Medicine, School of Medicine, University of Dundee, Ninewells Hospital and Medical School, Dundee, United Kingdom
| | - Li Kang
- Divison of Cardiovascular & Diabetes Medicine, School of Medicine, University of Dundee, Ninewells Hospital and Medical School, Dundee, United Kingdom
| | - Michael L. J. Ashford
- Divison of Cardiovascular & Diabetes Medicine, School of Medicine, University of Dundee, Ninewells Hospital and Medical School, Dundee, United Kingdom
- * E-mail: (SCF); (MLJA)
| | - Susanna C. Fagerholm
- Division of Cancer Research, School of Medicine, University of Dundee, Ninewells Hospital and Medical School, Dundee, United Kingdom
- Institute of Biotechnology, University of Helsinki, Helsinki, Finland
- * E-mail: (SCF); (MLJA)
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13
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Leon-Rico D, Aldea M, Sanchez R, Segovia JC, Weiss LA, Hidalgo A, Bueren JA, Almarza E. Brief report: reduced expression of CD18 leads to the in vivo expansion of hematopoietic stem cells in mouse bone marrow. Stem Cells 2015; 32:2794-8. [PMID: 24906078 DOI: 10.1002/stem.1762] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Revised: 05/05/2014] [Accepted: 05/15/2014] [Indexed: 01/12/2023]
Abstract
Leukocyte adhesion deficiency type-I is a primary immunodeficiency caused by mutations in the ITGB2 gene (CD18 leukocyte integrin) which lead to defects in leukocyte extravasation. To investigate the role of CD18 in hematopoietic stem cell (HSC) biology, we have thoroughly characterized the HSCs of CD18 Itgb2(tm1bay) hypomorphic mice (CD18(HYP) ) both by flow cytometry and using in vitro and in vivo transplantation assays. Flow cytometry analyses and cultures in methyl cellulose revealed that bone marrow (BM) from CD18(HYP) mice was enriched in hematopoietic precursors, mainly early quiescent short-term and long-term Hematopoietic progenitors cells. Strikingly, BM competition assays showed a progressive expansion of CD18(HYP) -derived hematopoiesis in recipient mice. Additionally, we provide evidence that this HSC expansion was not caused by an increased homing capacity of CD18(HYP) HSCs or by alterations in the hematopoietic environment of CD18(HYP) mice due to defects in neutrophils clearance. On the contrary, our data demonstrated that the reduced expression of CD18 causes a cell-autonomous expansion in the HSC compartment, thus revealing unexpected regulatory functions for CD18 in mouse HSCs.
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Affiliation(s)
- Diego Leon-Rico
- Division of Hematopoietic Innovative Therapies, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT) and Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBER-ER), Madrid, Sapin; Instituto de Investigación Sanitaria Fundación Jiménez Díaz (IIS-FJD, UAM), Madrid, Spain
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14
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Loss of beta2-integrin-mediated cytoskeletal linkage reprogrammes dendritic cells to a mature migratory phenotype. Nat Commun 2014; 5:5359. [PMID: 25348463 PMCID: PMC4258606 DOI: 10.1038/ncomms6359] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Accepted: 09/23/2014] [Indexed: 01/03/2023] Open
Abstract
The actin cytoskeleton has been reported to restrict signaling in resting immune cells. Beta2-integrins, which mediate adhesion and cytoskeletal organization, are emerging as negative regulators of myeloid cell-mediated immune responses, but the molecular mechanisms involved are poorly understood. Here, we show that loss of the interaction between beta2-integrins and kindlin-3 abolishes the actin-linkage of integrins and the GM-CSF receptor in dendritic cells. This leads to increased GM-CSF receptor/Syk signaling, and to the induction of a transcriptional program characteristic of mature, migratory dendritic cells, accumulation of migratory dendritic cells in lymphoid organs, and increased Th1 immune responses in vivo. We observe increased GM-CSF responses and increased survival in neutrophils where the interaction between integrin and the cytoskeleton is disrupted. Thus, ligand-reinforced beta2-integrin tail interactions restrict cytokine receptor signaling, survival, maturation and migration in myeloid cells and thereby contribute to immune homeostasis in vivo.
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