Phagocytosis by Thrombocytes is a Conserved Innate Immune Mechanism in Lower Vertebrates.

Abstract:

:Thrombocytes, nucleated hemostatic blood cells of non-mammalian vertebrates, are regarded as the functional equivalent of anucleated mammalian platelets. Additional immune functions, including phagocytosis, have also been suggested for thrombocytes, but no conclusive molecular or cellular experimental evidence for their potential ingestion and clearance of infiltrating microbes has been provided till date. In the present study, we demonstrate the active phagocytic ability of thrombocytes in lower vertebrates using teleost fishes and amphibian models. Ex vivo, common carp thrombocytes were able to ingest live bacteria as well as latex beads (0.5-3 μm in diameter) and kill the bacteria. In vivo, we found that thrombocytes represented nearly half of the phagocyte population in the common carp total peripheral blood leukocyte pool. Phagocytosis efficiency was further enhanced by serum opsonization. Particle internalization led to phagolysosome fusion and killing of internalized bacteria, pointing to a robust ability for microbe elimination. We find that this potent phagocytic activity is shared across teleost (Paralichthys olivaceus) and amphibian (Xenopus laevis) models examined, implying its conservation throughout the lower vertebrate lineage. Our results provide novel insights into the dual nature of thrombocytes in the immune and homeostatic response and further provide a deeper understanding of the potential immune function of mammalian platelets based on the conserved and vestigial functions.

journal_name

Front Immunol

journal_title

Frontiers in immunology

authors

Nagasawa T,Nakayasu C,Rieger AM,Barreda DR,Somamoto T,Nakao M

doi

10.3389/fimmu.2014.00445

subject

Has Abstract

pub_date

2014-09-16 00:00:00

pages

445

issn

1664-3224

journal_volume

5

pub_type

杂志文章
  • Establishment and Maintenance of Conventional and Circulation-Driven Lung-Resident Memory CD8+ T Cells Following Respiratory Virus Infections.

    abstract::Antigen-specific CD8+ tissue-resident memory T cells (TRM cells) persist in the lung following resolution of a respiratory virus infection and provide first-line defense against reinfection. In contrast to other memory T cell populations, such as central memory T cells that circulate between lymph and blood, and effec...

    journal_title:Frontiers in immunology

    pub_type: 杂志文章

    doi:10.3389/fimmu.2019.00733

    authors: Takamura S,Kohlmeier JE

    更新日期:2019-04-05 00:00:00

  • Efficacy of Lactoferrin Oral Administration in the Treatment of Anemia and Anemia of Inflammation in Pregnant and Non-pregnant Women: An Interventional Study.

    abstract::The discovery of the ferroportin-hepcidin complex has led to a critical review on the treatment of anemia and anemia of inflammation (AI). Ferroportin, the only known mammalian iron exporter from cells to blood, is negatively regulated by hepcidin, a hormone peptide able to bind to ferroportin, leading to its degradat...

    journal_title:Frontiers in immunology

    pub_type: 临床试验,杂志文章

    doi:10.3389/fimmu.2018.02123

    authors: Lepanto MS,Rosa L,Cutone A,Conte MP,Paesano R,Valenti P

    更新日期:2018-09-21 00:00:00

  • Characterization and functional properties of gastric tissue-resident memory T cells from children, adults, and the elderly.

    abstract::T cells are the main orchestrators of protective immunity in the stomach; however, limited information on the presence and function of the gastric T subsets is available mainly due to the difficulty in recovering high numbers of viable cells from human gastric biopsies. To overcome this shortcoming we optimized a cell...

    journal_title:Frontiers in immunology

    pub_type: 杂志文章

    doi:10.3389/fimmu.2014.00294

    authors: Booth JS,Toapanta FR,Salerno-Goncalves R,Patil S,Kader HA,Safta AM,Czinn SJ,Greenwald BD,Sztein MB

    更新日期:2014-06-19 00:00:00

  • TCR Triggering Induces the Formation of Lck-RACK1-Actinin-1 Multiprotein Network Affecting Lck Redistribution.

    abstract::The initiation of T-cell signaling is critically dependent on the function of the member of Src family tyrosine kinases, Lck. Upon T-cell antigen receptor (TCR) triggering, Lck kinase activity induces the nucleation of signal-transducing hubs that regulate the formation of complex signaling network and cytoskeletal re...

    journal_title:Frontiers in immunology

    pub_type: 杂志文章

    doi:10.3389/fimmu.2016.00449

    authors: Ballek O,Valečka J,Dobešová M,Broučková A,Manning J,Řehulka P,Stulík J,Filipp D

    更新日期:2016-10-27 00:00:00

  • CD83: Activation Marker for Antigen Presenting Cells and Its Therapeutic Potential.

    abstract::CD83 is a member of the immunoglobulin (Ig) superfamily and is expressed in membrane bound or soluble forms. Membrane CD83 (mCD83) can be detected on a variety of activated immune cells, although it is most highly and stably expressed by mature dendritic cells (DC). mCD83 regulates maturation, activation and homeostas...

    journal_title:Frontiers in immunology

    pub_type: 杂志文章,评审

    doi:10.3389/fimmu.2019.01312

    authors: Li Z,Ju X,Silveira PA,Abadir E,Hsu WH,Hart DNJ,Clark GJ

    更新日期:2019-06-07 00:00:00

  • A New Strategy Toward B Cell-Based Cancer Vaccines by Active Immunization With Mimotopes of Immune Checkpoint Inhibitors.

    abstract::Therapeutic monoclonal antibodies (mAbs), targeting tumor antigens, or immune checkpoints, have demonstrated a remarkable anti-tumor effect against various malignancies. However, high costs for mono- or combination therapies, associated with adverse effects or possible development of resistance in some patients, warra...

    journal_title:Frontiers in immunology

    pub_type: 杂志文章

    doi:10.3389/fimmu.2020.00895

    authors: Tobias J,Battin C,De Sousa Linhares A,Lebens M,Baier K,Ambroz K,Drinić M,Högler S,Inic-Kanada A,Garner-Spitzer E,Preusser M,Kenner L,Kundi M,Zielinski CC,Steinberger P,Wiedermann U

    更新日期:2020-05-27 00:00:00

  • Activation of Resolution Pathways to Prevent and Fight Chronic Inflammation: Lessons From Asthma and Inflammatory Bowel Disease.

    abstract::Formerly considered as a passive process, the resolution of acute inflammation is now recognized as an active host response, with a cascade of coordinated cellular and molecular events that promotes termination of the inflammatory response and initiates tissue repair and healing. In a state of immune fitness, the reso...

    journal_title:Frontiers in immunology

    pub_type: 杂志文章,评审

    doi:10.3389/fimmu.2019.01699

    authors: Barnig C,Bezema T,Calder PC,Charloux A,Frossard N,Garssen J,Haworth O,Dilevskaya K,Levi-Schaffer F,Lonsdorfer E,Wauben M,Kraneveld AD,Te Velde AA

    更新日期:2019-07-23 00:00:00

  • A Role for Dogs in Advancing Cancer Immunotherapy Research.

    abstract::While rodent cancer models are essential for early proof-of-concept and mechanistic studies for immune therapies, these models have limitations with regards to predicting the ultimate effectiveness of new immunotherapies in humans. As a unique spontaneous, large animal model of cancer, the value of conducting studies ...

    journal_title:Frontiers in immunology

    pub_type: 杂志文章,评审

    doi:10.3389/fimmu.2019.02935

    authors: Dow S

    更新日期:2020-01-17 00:00:00

  • Preparing unbiased T-cell receptor and antibody cDNA libraries for the deep next generation sequencing profiling.

    abstract::High-throughput sequencing has the power to reveal the nature of adaptive immunity as represented by the full complexity of T-cell receptor (TCR) and antibody (IG) repertoires, but is at present severely compromised by the quantitative bias, bottlenecks, and accumulated errors that inevitably occur in the course of li...

    journal_title:Frontiers in immunology

    pub_type: 杂志文章

    doi:10.3389/fimmu.2013.00456

    authors: Mamedov IZ,Britanova OV,Zvyagin IV,Turchaninova MA,Bolotin DA,Putintseva EV,Lebedev YB,Chudakov DM

    更新日期:2013-12-23 00:00:00

  • Extensive Alternative Splicing of KIR Transcripts.

    abstract::The killer-cell Ig-like receptors (KIR) form a multigene entity involved in modulating immune responses through interactions with MHC class I molecules. The complexity of the KIR cluster is reflected by, for instance, abundant levels of allelic polymorphism, gene copy number variation, and stochastic expression profil...

    journal_title:Frontiers in immunology

    pub_type: 杂志文章

    doi:10.3389/fimmu.2018.02846

    authors: Bruijnesteijn J,van der Wiel MKH,de Groot N,Otting N,de Vos-Rouweler AJM,Lardy NM,de Groot NG,Bontrop RE

    更新日期:2018-12-04 00:00:00

  • Precision Subtypes of T Cell-Mediated Rejection Identified by Molecular Profiles.

    abstract::Among kidney transplant recipients, the treatment of choice for acute T cell-mediated rejection (TCMR) with pulse steroids or antibody protocols has variable outcomes. Some rejection episodes are resistant to an initial steroid pulse, but respond to subsequent antibody protocols. The biological mechanisms causing the ...

    journal_title:Frontiers in immunology

    pub_type: 杂志文章

    doi:10.3389/fimmu.2015.00536

    authors: Kadota PO,Hajjiri Z,Finn PW,Perkins DL

    更新日期:2015-11-06 00:00:00

  • Mesenchymal cell differentiation during lymph node organogenesis.

    abstract::Secondary lymphoid tissues such as lymph nodes are essential for the interactions between antigen presenting cells and lymphocytes that result in adaptive immune responses that protect the host against invading pathogens. The specialized architecture of these organs facilitates the cognate interactions between antigen...

    journal_title:Frontiers in immunology

    pub_type: 杂志文章

    doi:10.3389/fimmu.2012.00381

    authors: Brendolan A,Caamaño JH

    更新日期:2012-12-14 00:00:00

  • Angiogenesis in Lymph Nodes Is a Critical Regulator of Immune Response and Lymphoma Growth.

    abstract::Tumor-induced remodeling of the microenvironment in lymph nodes (LNs) includes the formation of blood vessels, which goes beyond the regulation of metabolism, and shaping a survival niche for tumor cells. In contrast to solid tumors, which primarily rely on neo-angiogenesis, hematopoietic malignancies usually grow wit...

    journal_title:Frontiers in immunology

    pub_type: 杂志文章,评审

    doi:10.3389/fimmu.2020.591741

    authors: Menzel L,Höpken UE,Rehm A

    更新日期:2020-12-03 00:00:00

  • Does NETosis Contribute to the Bacterial Pathoadaptation in Cystic Fibrosis?

    abstract::Significant advances in our understanding of neutrophil biology were made in the past several years. The exciting discovery that neutrophils deploy neutrophil extracellular traps (NETs) to catch pathogens paved the way for a series of additional studies to define the molecular mechanisms of NET generation and the biol...

    journal_title:Frontiers in immunology

    pub_type: 杂志文章,评审

    doi:10.3389/fimmu.2014.00378

    authors: Rahman S,Gadjeva M

    更新日期:2014-08-11 00:00:00

  • Identification of a Consolidation Phase in Immunological Memory.

    abstract::Long lasting antibody responses and immunological memory are the desired outcomes of vaccination. In general, multiple vaccine doses result in enhanced immune responses, a notable exception being booster-induced hyporesponsiveness, which has been observed with polysaccharide and glycoconjugate vaccines. In this study,...

    journal_title:Frontiers in immunology

    pub_type: 杂志文章

    doi:10.3389/fimmu.2019.00508

    authors: Mantile F,Capasso A,De Berardinis P,Prisco A

    更新日期:2019-03-19 00:00:00

  • Identifying a Novel Role for Fractalkine (CX3CL1) in Memory CD8+ T Cell Accumulation in the Omentum of Obesity-Associated Cancer Patients.

    abstract::The omentum is enriched with pro-inflammatory effector memory CD8+ T cells in patients with the obesity-associated malignancy, esophagogastric adenocarcinoma (EAC) and we have identified the chemokine macrophage inflammatory protein-1alpha as a key player in their active migration to this inflamed tissue. More recentl...

    journal_title:Frontiers in immunology

    pub_type: 杂志文章

    doi:10.3389/fimmu.2018.01867

    authors: Conroy MJ,Maher SG,Melo AM,Doyle SL,Foley E,Reynolds JV,Long A,Lysaght J

    更新日期:2018-08-13 00:00:00

  • Augmenting Anticancer Immunity Through Combined Targeting of Angiogenic and PD-1/PD-L1 Pathways: Challenges and Opportunities.

    abstract::Cancer immunotherapy (CIT) with antibodies targeting the programmed cell death 1 protein (PD-1)/programmed cell death 1 ligand 1 (PD-L1) axis have changed the standard of care in multiple cancers. However, durable antitumor responses have been observed in only a minority of patients, indicating the presence of other i...

    journal_title:Frontiers in immunology

    pub_type: 杂志文章,评审

    doi:10.3389/fimmu.2020.598877

    authors: Hack SP,Zhu AX,Wang Y

    更新日期:2020-11-05 00:00:00

  • The Antidiabetic and Antinephritic Activities of Auricularia cornea (An Albino Mutant Strain) via Modulation of Oxidative Stress in the db/db Mice.

    abstract::This study first systematically analyzed the constituents of an albino mutant strain of Auricularia cornea (AU). After 8 weeks of continuous treatment with metformin (Met) (0.1 g/kg) and AU (0.1 and 0.4 g/kg), db/db mice showed hypoglycemic functioning, indicated by reduced bodyweight, food intake, plasma glucose, ser...

    journal_title:Frontiers in immunology

    pub_type: 杂志文章

    doi:10.3389/fimmu.2019.01039

    authors: Wang D,Jiang X,Teng S,Zhang Y,Liu Y,Li X,Li Y

    更新日期:2019-05-08 00:00:00

  • Respiratory Disease following Viral Lung Infection Alters the Murine Gut Microbiota.

    abstract::Alterations in the composition of the gut microbiota have profound effects on human health. Consequently, there is great interest in identifying, characterizing, and understanding factors that initiate these changes. Despite their high prevalence, studies have only recently begun to investigate how viral lung infectio...

    journal_title:Frontiers in immunology

    pub_type: 杂志文章

    doi:10.3389/fimmu.2018.00182

    authors: Groves HT,Cuthbertson L,James P,Moffatt MF,Cox MJ,Tregoning JS

    更新日期:2018-02-12 00:00:00

  • MicroRNA-21: A Positive Regulator for Optimal Production of Type I and Type III Interferon by Plasmacytoid Dendritic Cells.

    abstract::Plasmacytoid dendritic cells (pDCs) are the major producers of type I and type III interferons (IFNs) that play essential roles in host antiviral immunity. MicroRNAs (miRs) are small, noncoding RNAs that can modulate many immune processes. Although molecular regulation of type I IFN production by pDCs has been studied...

    journal_title:Frontiers in immunology

    pub_type: 杂志文章

    doi:10.3389/fimmu.2017.00947

    authors: Liu F,Liu C,Hu X,Shang Y,Wu L

    更新日期:2017-08-21 00:00:00

  • The Small GTPase Rab5c Exerts Bi-Function in Singapore Grouper Iridovirus Infections and Cellular Responses in the Grouper, Epinephelus coioides.

    abstract::The small GTPase Rab5 is one of the master regulators of vesicular trafficking that participates in early stages of the endocytic pathway, such as endocytosis and endosome maturation. Three Rab5 isoforms (a, b, and c) share high sequence identity, and exhibit complex functions. However, the role of Rab5c in virus infe...

    journal_title:Frontiers in immunology

    pub_type: 杂志文章

    doi:10.3389/fimmu.2020.02133

    authors: Wang L,Li C,Zhang X,Yang M,Wei S,Huang Y,Qin Q,Wang S

    更新日期:2020-09-02 00:00:00

  • Interaction Between Macrophage Migration Inhibitory Factor and CD74 in Human Immunodeficiency Virus Type I Infected Primary Monocyte-Derived Macrophages Triggers the Production of Proinflammatory Mediators and Enhances Infection of Unactivated CD4+ T Cell

    abstract::Understanding the mechanisms of human immunodeficiency virus type I (HIV-1) pathogenesis would facilitate the identification of new therapeutic targets to control the infection in face of current antiretroviral therapy limitations. CD74 membrane expression is upregulated in HIV-1-infected cells and the magnitude of it...

    journal_title:Frontiers in immunology

    pub_type: 杂志文章

    doi:10.3389/fimmu.2018.01494

    authors: Trifone C,Salido J,Ruiz MJ,Leng L,Quiroga MF,Salomón H,Bucala R,Ghiglione Y,Turk G

    更新日期:2018-06-27 00:00:00

  • Interleukin (IL)-12 and IL-18 Synergize to Promote MAIT Cell IL-17A and IL-17F Production Independently of IL-23 Signaling.

    abstract::IL-23 is considered a critical regulator of IL-17 in Th17 cells; however, its requirement for inducing IL-17 production in other human immune subsets remains incompletely understood. Mucosal associated invariant T (MAIT) cells uniformly express retinoic acid receptor-related orphan receptor gamma t (RORγt) but only a ...

    journal_title:Frontiers in immunology

    pub_type: 杂志文章

    doi:10.3389/fimmu.2020.585134

    authors: Cole S,Murray J,Simpson C,Okoye R,Tyson K,Griffiths M,Baeten D,Shaw S,Maroof A

    更新日期:2020-11-20 00:00:00

  • Event-Driven Immunoprofiling Predicts Return of Disease Activity in Alemtuzumab-Treated Multiple Sclerosis.

    abstract::Background: Alemtuzumab is a highly effective drug for the treatment of multiple sclerosis (MS), characterized by specific patterns of depletion and repopulation. As an induction-like treatment concept, two mandatory infusion courses can inhibit long-term disease activity in the majority of patients, and additional co...

    journal_title:Frontiers in immunology

    pub_type: 杂志文章

    doi:10.3389/fimmu.2020.00056

    authors: Akgün K,Blankenburg J,Marggraf M,Haase R,Ziemssen T

    更新日期:2020-01-31 00:00:00

  • Dysregulated TRAF3 and BCL2 Expression Promotes Multiple Classes of Mature Non-hodgkin B Cell Lymphoma in Mice.

    abstract::TNF-Receptor Associated Factor (TRAF)-3 is a master regulator of B cell homeostasis and function. TRAF3 has been shown to bind and regulate various proteins involved in the control of innate and adaptive immune responses. Previous studies showed that TRAF3 overexpression renders B cells hyper-reactive to antigens and ...

    journal_title:Frontiers in immunology

    pub_type: 杂志文章

    doi:10.3389/fimmu.2018.03114

    authors: Perez-Chacon G,Adrados M,Vallejo-Cremades MT,Lefebvre S,Reed JC,Zapata JM

    更新日期:2019-01-11 00:00:00

  • MicroRNA124-IL6R Mediates the Effect of Nicotine in Inflammatory Bowel Disease by Shifting Th1/Th2 Balance Toward Th1.

    abstract::Epidemiological investigations have shown that smoking ameliorates ulcerative colitis (UC) but exacerbates Crohn's disease (CD), diseases that feature a Th2-mediated and Th1-mediated response, respectively. Cigarette extracts, especially nicotine, affect the Th1/Th2 balance. We previously reported that nicotine protec...

    journal_title:Frontiers in immunology

    pub_type: 杂志文章

    doi:10.3389/fimmu.2020.00235

    authors: Qin Z,Wang PY,Wan JJ,Zhang Y,Wei J,Sun Y,Liu X

    更新日期:2020-02-21 00:00:00

  • Development of CD4 T Cell Dependent Immunity Against N. brasiliensis Infection.

    abstract::Of all the microbial infections relevant to mammals the relationship between parasitic worms and what constitutes and regulates a host protective immune response is perhaps the most complex and evolved. Nippostrongylus brasiliensis is a tissue migrating parasitic roundworm of rodents that exemplifies many of the salie...

    journal_title:Frontiers in immunology

    pub_type: 杂志文章

    doi:10.3389/fimmu.2013.00074

    authors: Harvie M,Camberis M,Le Gros G

    更新日期:2013-03-20 00:00:00

  • Immunological Aspects of Approved MS Therapeutics.

    abstract::Multiple sclerosis (MS) is the most common neurological immune-mediated disease leading to disability in young adults. The outcome of the disease is unpredictable, and over time, neurological disabilities accumulate. Interferon beta-1b was the first drug to be approved in the 1990s for relapsing-remitting MS to modula...

    journal_title:Frontiers in immunology

    pub_type: 杂志文章,评审

    doi:10.3389/fimmu.2019.01564

    authors: Rommer PS,Milo R,Han MH,Satyanarayan S,Sellner J,Hauer L,Illes Z,Warnke C,Laurent S,Weber MS,Zhang Y,Stuve O

    更新日期:2019-07-11 00:00:00

  • Complement Activation in Autoimmune Bullous Dermatoses: A Comprehensive Review.

    abstract::Autoimmune bullous dermatoses (AIBD) are characterized by circulating autoantibodies that are either directed against epidermal antigens or deposited as immune complexes in the basement membrane zone (BMZ). The complement system (CS) can be activated by autoantibodies, thereby triggering activation of specific complem...

    journal_title:Frontiers in immunology

    pub_type: 杂志文章,评审

    doi:10.3389/fimmu.2019.01477

    authors: Edwards G,Diercks GFH,Seelen MAJ,Horvath B,van Doorn MBA,Damman J

    更新日期:2019-06-26 00:00:00

  • Epigenetic and Transcriptional Regulation in the Induction, Maintenance, Heterogeneity, and Recall-Response of Effector and Memory Th2 Cells.

    abstract::Antigen-primed T cells respond to restimulation much faster than naïve T cells and form the cellular basis of immunological memory. The formation of memory Th2 cells starts when naïve CD4 T cells are transformed into effector Th2 cells and is completed after antigen clearance and a long-term resting phase accompanied ...

    journal_title:Frontiers in immunology

    pub_type: 杂志文章,评审

    doi:10.3389/fimmu.2018.02929

    authors: Onodera A,Kokubo K,Nakayama T

    更新日期:2018-12-12 00:00:00