Abstract:
:Dendritic cells are key linkers of innate and adaptive immunity. Efficient dendritic cell activation is central to the acquisition of immunity and the efficacy of vaccines. Understanding how dendritic cells are affected by Plasmodium falciparum blood-stage parasites will help to understand how immunity is acquired and maintained, and how vaccine responses may be impacted by malaria infection or exposure. This study investigates the response of dendritic cells to two different life stages of the malaria parasite, parasitized red blood cells and merozoites, using a murine model. We demonstrate that the dendritic cell responses to merozoites are robust whereas dendritic cell activation, particularly CD40 and pro-inflammatory cytokine expression, is compromised in the presence of freshly isolated parasitized red blood cells. The mechanism of dendritic cell suppression by parasitized red blood cells is host red cell membrane-independent. Furthermore, we show that cryopreserved parasitized red blood cells have a substantially reduced capacity for dendritic cell activation.
journal_name
Front Immunoljournal_title
Frontiers in immunologyauthors
Yap XZ,Lundie RJ,Feng G,Pooley J,Beeson JG,O'Keeffe Mdoi
10.3389/fimmu.2019.00032subject
Has Abstractpub_date
2019-01-31 00:00:00pages
32issn
1664-3224journal_volume
10pub_type
杂志文章abstract::The role of inflammation in atherosclerosis has been recognized several decades ago and existing treatments provide benefits in part through non-specific anti-inflammatory actions. Compared with other cytokines, interleukin-1β (IL-1β) is associated with acute and chronic inflammation. Anti-inflammatory therapy with ca...
journal_title:Frontiers in immunology
pub_type: 杂志文章,评审
doi:10.3389/fimmu.2020.589654
更新日期:2020-12-10 00:00:00
abstract::An important challenge in cancer immunotherapy is to expand the number of patients that benefit from immune checkpoint inhibitors (CI), a fact that has been related to the pre-existence of an efficient anti-tumor immune response. Different strategies are being proposed to promote tumor immunity and to be used in combi...
journal_title:Frontiers in immunology
pub_type: 杂志文章
doi:10.3389/fimmu.2019.00503
更新日期:2019-03-20 00:00:00
abstract::The immunopathological functions associated with human C1q are still growing in terms of novelty, diversity, and pathologic relevance. It is, therefore, not surprising that C1q is being recognized as an important molecular bridge between innate and adaptive immunity. The secret of this functional diversity, in turn, r...
journal_title:Frontiers in immunology
pub_type: 杂志文章
doi:10.3389/fimmu.2018.00162
更新日期:2018-02-05 00:00:00
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
更新日期:2019-07-23 00:00:00
abstract::Background: Optimal timing of gestational tetanus-diphtheria-acellular pertussis (Tdap) vaccination is not well-defined. No well-established specific anti-pertussis antibody level correlates with protection, suggesting the importance of antibody quality such as avidity. We aimed to determine the effect of timing of va...
journal_title:Frontiers in immunology
pub_type: 杂志文章
doi:10.3389/fimmu.2019.02423
更新日期:2019-10-11 00:00:00
abstract::The adaptive immune response is initiated in lymph nodes by contact between antigen-bearing dendritic cells (DCs) and antigen-specific T cells. A selected number of naïve T cells that recognize a specific antigen may proliferate into expanded clones, differentiate, and acquire an effector phenotype. Despite growing ex...
journal_title:Frontiers in immunology
pub_type: 杂志文章
doi:10.3389/fimmu.2019.01289
更新日期:2019-06-11 00:00:00
abstract::This review discusses the mechanisms and consequences of degradation of tryptophan (Trp) in the placenta, focusing mainly on the role of indoleamine 2,3-dioxygenase-1 (IDO1), one of three enzymes catalyzing the first step of the kynurenine pathway of Trp degradation. IDO1 has been implicated in regulation of feto-mate...
journal_title:Frontiers in immunology
pub_type: 杂志文章,评审
doi:10.3389/fimmu.2014.00230
更新日期:2014-05-19 00:00:00
abstract::Single trauma injuries or isolated fractures are often manageable and generally heal without complications. In contrast, high-energy trauma results in multi/poly-trauma injury patterns presenting imbalanced pro- and anti- inflammatory responses often leading to immune dysfunction. These injuries often exhibit delayed ...
journal_title:Frontiers in immunology
pub_type: 杂志文章,评审
doi:10.3389/fimmu.2020.01056
更新日期:2020-06-04 00:00:00
abstract::The COVID-19 pandemic demonstrates the ongoing threat of pandemics caused by novel, previously unrecognized, or mutated pathogens with high transmissibility. Currently, vaccine development is too slow for vaccines to be used in the control of emerging pandemics. RNA-based vaccines might be suitable to meet this challe...
journal_title:Frontiers in immunology
pub_type: 杂志文章,评审
doi:10.3389/fimmu.2020.608460
更新日期:2020-12-22 00:00:00
abstract::Sepsis is characterized by injury of pulmonary microvascular endothelial cells (PMVEC) leading to barrier dysfunction. Multiple mechanisms promote septic PMVEC barrier dysfunction, including interaction with circulating leukocytes and PMVEC apoptotic death. Our previous work demonstrated a strong correlation between s...
journal_title:Frontiers in immunology
pub_type: 杂志文章
doi:10.3389/fimmu.2018.01743
更新日期:2018-08-02 00:00:00
abstract::Keloids are disfiguring, fibroproliferative growths and their pathogenesis remains unclear, inhibiting therapeutic development. Available treatment options have limited efficacy and harbor safety concerns. Thus, there is a great need to clarify keloid pathomechanisms that may lead to novel treatments. In this study, w...
journal_title:Frontiers in immunology
pub_type: 杂志文章
doi:10.3389/fimmu.2020.597741
更新日期:2020-11-23 00:00:00
abstract::Immunosuppressive factors, such as soluble major histocompatibility complex class I chain-related peptide A (sMICA) and transforming growth factor beta 1 (TGF-β1), are involved in tumor immune escape mechanisms (TIEMs) exhibited by head and neck squamous cell carcinomas (HNSCCs) and may represent opportunities for the...
journal_title:Frontiers in immunology
pub_type: 杂志文章
doi:10.3389/fimmu.2015.00543
更新日期:2015-11-02 00:00:00
abstract::Fighting external pathogens requires an ever-changing immune system that relies on tight regulation of gene expression. Transcriptional control is the first step to build efficient responses while preventing immunodeficiencies and autoimmunity. Post-transcriptional regulation of RNA editing, location, stability, and t...
journal_title:Frontiers in immunology
pub_type: 杂志文章,评审
doi:10.3389/fimmu.2018.01094
更新日期:2018-05-23 00:00:00
abstract::Arboviruses (arthropod-borne viruses), such as Zika (ZIKV), West Nile (WNV), and dengue (DENV) virus, include some of the most significant global health risks to human populations. The steady increase in the number of cases is of great concern due to the debilitating diseases associated with each viral infection. Beca...
journal_title:Frontiers in immunology
pub_type: 杂志文章,评审
doi:10.3389/fimmu.2019.02973
更新日期:2019-12-20 00:00:00
abstract::Anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis is an autoimmune inflammatory brain disease that can develop a variety of neuropsychiatric presentations. However, the underlying nature of its inflammatory neuronal injury remains unclear. Mitochondrial DNA (mtDNA) is recently regarded as a damage-associated mol...
journal_title:Frontiers in immunology
pub_type: 杂志文章
doi:10.3389/fimmu.2019.00103
更新日期:2019-02-06 00:00:00
abstract::Interleukin-33 (IL-33), a member of the IL-1 superfamily, functions as a traditional cytokine and nuclear factor. It is proposed to have an "alarmin" role. IL-33 mediates biological effects by interacting with the ST2 receptor and IL-1 receptor accessory protein, particularly in innate immune cells and T helper 2 cell...
journal_title:Frontiers in immunology
pub_type: 杂志文章,评审
doi:10.3389/fimmu.2018.02663
更新日期:2018-11-15 00:00:00
abstract::Antigen capturing at the periphery is one of the earliest, crucial functions of antigen-presenting cells (APCs) to initiate immune responses. Langerhans cells (LCs), the epidermal APCs migrate to draining lymph nodes (DLNs) upon acquiring antigens. An arsenal of endocytic molecules is available to this end, including ...
journal_title:Frontiers in immunology
pub_type: 杂志文章
doi:10.3389/fimmu.2020.00744
更新日期:2020-04-27 00:00:00
abstract::Systemic lupus erythematosus (SLE) is a multi-system autoimmune disease including the cardiovascular system. Atherosclerosis is the most common cardiovascular complication of SLE and a significant risk factor for morbidity and mortality. Vascular damage/protection mechanism in SLE patients is out of balance, caused by...
journal_title:Frontiers in immunology
pub_type: 杂志文章,评审
doi:10.3389/fimmu.2020.581385
更新日期:2020-11-11 00:00:00
abstract::The generation of antibodies against protein antigens (such as donor-specific HLA molecules) requires that T follicular helper cells (Tfh) provide help to B cells. Immunosuppressive (IS) armamentarium prevents T cell activation, yet a significant proportion of renal transplant patients develop donor-specific antibodie...
journal_title:Frontiers in immunology
pub_type: 杂志文章
doi:10.3389/fimmu.2018.03178
更新日期:2019-02-05 00:00:00
abstract::Background: Ninety percent of systemic lupus erythematosus (SLE) patients are women. X chromosome-dosage increases susceptibility to SLE and primary Sjögren's syndrome (pSS). Chromosome X open reading frame 21 (CXorf21) escapes X-inactivation and is an SLE risk gene of previously unknown function. We undertook the pre...
journal_title:Frontiers in immunology
pub_type: 杂志文章
doi:10.3389/fimmu.2019.02160
更新日期:2019-10-21 00:00:00
abstract::Background: More than 50 different monogenic disorders have been identified as directly causing inflammatory bowel diseases, typically manifesting in the first years of life. We present the clinical course and immunological work-up of an adult patient who presented in adolescent years with an atypical gastrointestinal...
journal_title:Frontiers in immunology
pub_type: 杂志文章
doi:10.3389/fimmu.2020.01775
更新日期:2020-09-04 00:00:00
abstract::Transplant tolerance induced in adult animals is mediated by alloantigen-specific CD4+CD25+ T cells, yet in many models, proliferation of CD4+ T cells from hosts tolerant to specific-alloantigen in vitro is not impaired. To identify changes that may diagnose tolerance, changes in the patterns of proliferation of CD4+,...
journal_title:Frontiers in immunology
pub_type: 杂志文章
doi:10.3389/fimmu.2017.00994
更新日期:2017-08-22 00:00:00
abstract::Human papillomavirus (HPV) is the most common sexually transmitted virus. The high-risk HPV types (i.e., HPV16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58, 59) are considered to be the main etiological agents of genital tract cancers, such as cervical, vulvar, vaginal, penile, and anal cancers, and of a subset of head and...
journal_title:Frontiers in immunology
pub_type: 杂志文章,评审
doi:10.3389/fimmu.2020.00188
更新日期:2020-02-18 00:00:00
abstract::Heavy chain-only antibodies (HCAbs) do not associate with light chains and their VH regions are functional as single domains, forming the smallest active antibody fragment. These VH regions are ideal building blocks for a variety of antibody-based biologics because they tolerate fusion to other molecules and may also ...
journal_title:Frontiers in immunology
pub_type: 杂志文章
doi:10.3389/fimmu.2018.03037
更新日期:2019-01-07 00:00:00
abstract::Diabetic retinopathy is a vision-threatening disease affecting neurons and microvasculature of the retina. The development of this disease is associated with the action of inflammatory factors that are connected to the activation of microglial cells, the resident tissue macrophages of the CNS. In the quiescent state, ...
journal_title:Frontiers in immunology
pub_type: 杂志文章,评审
doi:10.3389/fimmu.2020.564077
更新日期:2020-11-06 00:00:00
abstract::The main role of the human immune system is to eliminate cells presenting foreign antigens and abnormal patterns, while maintaining self-tolerance. However, when facing highly variable pathogens or antigens very similar to self-antigens, this system can fail in completely eliminating the anomalies, leading to the esta...
journal_title:Frontiers in immunology
pub_type: 杂志文章,评审
doi:10.3389/fimmu.2020.01350
更新日期:2020-06-30 00:00:00
abstract::The approval of the first two monoclonal antibodies targeting CD38 (daratumumab) and SLAMF7 (elotuzumab) in late 2015 for treating relapsed and refractory multiple myeloma (RRMM) was a critical advance for immunotherapies for multiple myeloma (MM). Importantly, the outcome of patients continues to improve with the inc...
journal_title:Frontiers in immunology
pub_type: 杂志文章,评审
doi:10.3389/fimmu.2018.01821
更新日期:2018-08-10 00:00:00
abstract::Innate immunity is one of the main protection mechanisms against viral infections, but how this system works at the maternal-fetal interface, especially during HIV infection, is still poorly known. In this study, we investigated the relationship between pregnancy and innate mechanisms associated with HIV immunity by e...
journal_title:Frontiers in immunology
pub_type: 杂志文章
doi:10.3389/fimmu.2020.01822
更新日期:2020-08-25 00:00:00
abstract::Aim: The objective of this study was to evaluate the association of the human leukocyte antigen (HLA) class II genes HLA-DRB1, HLA-DPB1, and HLA-DQB1 with the humoral immune response elicited by inactivated Japanese encephalitis (JE) vaccine (IJEV). Methods: A total of 373 individuals aged 3-12 years in the Inner Mong...
journal_title:Frontiers in immunology
pub_type: 杂志文章,随机对照试验
doi:10.3389/fimmu.2019.00428
更新日期:2019-03-08 00:00:00
abstract::Cerebral malaria is a life-threatening complication of malaria in humans, and the underlying pathogenic mechanisms are widely analyzed in a murine model of experimental cerebral malaria (ECM). Here, we show abrogation of ECM by hemocoel sporozoite-induced infection of a transgenic Plasmodium berghei line that overexpr...
journal_title:Frontiers in immunology
pub_type: 杂志文章
doi:10.3389/fimmu.2019.02554
更新日期:2019-11-01 00:00:00