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PubMed Journals Articles About "Innate Lymphoid Cells Inflammatory Arthritis" RSS

06:36 EDT 30th March 2020 | BioPortfolio

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Showing "Innate lymphoid cells inflammatory arthritis" PubMed Articles 1–25 of 26,000+

The Neuropeptide CGRP Induces Bipolar Syndrome in Group 2 Innate Lymphoid Cells.

In this issue of Immunity, Nagashima et al., Wallrapp et al., and Xu et al. demonstrate that the neuropeptide calcitonin gene-related peptide (CGRP) fine tunes type 2 innate immune response via suppressing group 2 innate lymphoid cells (ILC2s).


Innate lymphoid cells. New players in tissue homeostasis and inflammatory responses.

In recent times, our understanding of the role of the immune system in different physiopathological situations has increased markedly. A new set of cells, generically known as innate lymphoid cells (ILC), has been discovered in the lymphoid compartment. Five ILC subsets can be recognized according to phenotypic and functional similarities with different subpopulations of T lymphocytes. Unlike T and B lymphocytes, ILC do not express antigen receptors nor undergo selection and clonal expansion upon activation...

CD4 CCR6 T cells, but not γδ T cells, are important for the IL-23R-dependent progression of antigen-induced inflammatory arthritis in mice.

IL-23 plays an important role in the development of arthritis and the IL-23 receptor (IL-23R) is expressed on different types of T cells. However, it is not fully clear which IL-23R T cells are critical in driving T cell-mediated synovitis. We demonstrate, using knock-in IL-23R-GFP reporter (IL-23R ) mice, that CD4 CCR6 T cells and γδ T cells, but not CD8 T cells, express the IL-23R(GFP). During early arthritis, IL-23R(GFP) CD4 CCR6 T cells, but not IL-23R(GFP) γδ T cells, were present in the in...


Innate lymphoid cells and cancer at border surfaces with the environment.

Innate lymphoid cells (ILC) are a recently identified group of innate lymphocytes. ILC are subdivided into cytotoxic ILC (i.e., conventional natural killer (NK) cells) and helper ILC. Helper ILC are tissue-resident cells that have been involved in various physiological and pathological processes of organs and tissues. While their roles during inflammation are well studied, their contribution to tumor immunity is not well known. Here, we will provide an overview of the various helper ILC subsets, their devel...

Activation through toll-like receptor 2 on group2 innate lymphoid cells can induce asthmatic characteristics.

Type 2 innate lymphoid cells (ILC2s) are one of the sources of IL-5 and IL-13 in allergic airway inflammation. Innate immune receptors such as Toll-like receptors (TLRs) expressed on epithelial cells could contribute to ILC2 activation through IL-33 production, but a direct effect of TLRs on ILC2s remains to be elucidated.

Autophagy is critical for group 2 innate lymphoid cell metabolic homeostasis and effector function.

Allergic asthma is a chronic inflammatory disorder that is characterized with airway hyperreactivity (AHR) and driven by Th2 cytokine production. Group 2 innate lymphoid cells (ILC2s) secrete high amount of Th2 cytokines and contribute to the development of AHR. Autophagy is a cellular degradation pathway that recycles cytoplasmic content. However, the role of autophagy in ILC2s remains to be fully elucidated.

Immunophenotyping of Human Innate Lymphoid Cells.

In the last years, the family of innate lymphocytes has been growing following the discovery of innate lymphoid cells (ILCs). ILCs are lymphocytes able to rapidly produce a wide range of soluble mediators in an antigen-independent fashion. So far, three main subsets of ILCs have been discovered, ILC1, ILC2, and ILC3, expressing respectively the transcription factors T-bet, GATA3, and Rorγt and secreting distinct types of cytokines. After their discovery, several studies showed that different pathologies, s...

Beyond Antibodies: B-cells in Hidradenitis Suppurativa: Bystanders, Contributors or Therapeutic Targets?

Hidradenitis Suppurativa (HS) is a chronic inflammatory dermatosis in which B cells play a prominent but unclear role. Our understanding of the role of B-cells in innate and adaptive immunity (including antibody production, antigen presentation and effector functions) is rapidly evolving; and these novel findings requiring integration into the pathophysiologic model of HS. B-cells are transiently present in normal human skin and have functions in the maintenance of innate cutaneous immunity. Recruitment and...

The pathogenic role of innate lymphoid cells in autoimmune-related and inflammatory skin diseases.

Innate lymphoid cells (ILCs), as an important component of the innate immune system, arise from a common lymphoid progenitor and are located in mucosal barriers and various tissues, including the intestine, skin, lung, and adipose tissue. ILCs are heterogeneous subsets of lymphocytes that have emerging roles in orchestrating immune response and contribute to maintain metabolic homeostasis and regulate tissue inflammation. Currently, more details about the pathways for the development and differentiation of ...

IL-17A-producing innate lymphoid cells promote skin inflammation by inducing IL-33- driven type 2 immune responses.

Atopic dermatitis (AD) is a chronic, pruritic, inflammatory skin disease characterized by a type 2 cytokines secreted by T helper 2 (Th2) cells and group 2 innate lymphoid cells (ILC2s). Despite a high degree of heterogeneity, AD is still explained by type 2 immunity, and the role of interleukin (IL)-17A, which is increased in acute, pediatric, or Asian patients with AD, remains poorly understood. Here, we aimed to investigate the role of IL-17A-producing ILC3s, which are unexplored immune cells, in the pat...

Innate Lymphoid Cell-Epithelial Cell Modules Sustain Intestinal Homeostasis.

The intestines have the essential but challenging mission of absorbing nutrients, restricting damage from food-derived toxins, promoting colonization by symbionts, and expelling pathogens. These processes are often incompatible with each other and must therefore be prioritized in view of the most crucial contemporary needs of the host. Recent work has shown that tissue-resident innate lymphoid cells (ILCs) constitute a central sensory module allowing adaptation of intestinal organ function to changing envir...

Functional significance of MAIT cells in psoriatic arthritis.

Mucosal-associated invariant T (MAIT) cells are gaining more relevance for autoimmune diseases because of its (i) innate and adaptive immune response (ii) tissue homing properties (iii) production of IL-17A. These cells are predominantly CD8 cells, because of its strong association with MHC-I. Tc17 CD8+/MAIT cells likely to have a critical role in psoriatic arthritis (PsA). Herein, we have explored pathological significance of MAIT cell in PsA.

Physical therapists' ability to distinguish between inflammatory and noninflammatory arthritis and to appropriately refer to rheumatology.

1) To investigate whether physical therapists (PTs) can correctly identify new-onset inflammatory arthritis; 2) To assess whether PTs are aware that new-onset inflammatory arthritis cases should be referred to a rheumatologist; 3) To explore the comfort level of PTs to refer to medical specialists; 4) To determine factors associated with correctly identifying inflammatory arthritis and referring to a rheumatologist.

NK cell-derived GM-CSF potentiates inflammatory arthritis and is negatively regulated by CIS.

Despite increasing recognition of the importance of GM-CSF in autoimmune disease, it remains unclear how GM-CSF is regulated at sites of tissue inflammation. Using GM-CSF fate reporter mice, we show that synovial NK cells produce GM-CSF in autoantibody-mediated inflammatory arthritis. Synovial NK cells promote a neutrophilic inflammatory cell infiltrate, and persistent arthritis, via GM-CSF production, as deletion of NK cells, or specific ablation of GM-CSF production in NK cells, abrogated disease. Synovia...

Perceived stress and inflammatory arthritis: a prospective investigation in the Studies of the Etiologies of Rheumatoid Arthritis (SERA) cohort.

The aim of this study was to determine the association of perceived stress with incident inflammatory arthritis (IA) defined as having at least 1 joint consistent with rheumatoid arthritis (RA)-like synovitis based on exam.

Interleukin-33 Induces the Enzyme Tryptophan Hydroxylase 1 to Promote Inflammatory Group 2 Innate Lymphoid Cell-Mediated Immunity.

Group 2 innate lymphoid cells (ILC2s) regulate immunity, inflammation, and tissue homeostasis. Two distinct subsets of ILC2s have been described: steady-state natural ILC2s and inflammatory ILC2s, which are elicited following helminth infection. However, how tissue-specific cues regulate these two subsets of ILC2s and their effector functions remains elusive. Here, we report that interleukin-33 (IL-33) promotes the generation of inflammatory ILC2s (ILC2) via induction of the enzyme tryptophan hydroxylase 1 ...

Progression or suppression: Two sides of the innate lymphoid cells in cancer.

Innate lymphoid cells (ILCs) as key players in innate immunity have been shown to be significantly associated with inflammation, lymphoid neogenesis, tissue remodeling, mucosal immunity and lately have been considered a remarkable nominee for either tumor-promoting or tumor-inhibiting functions. This dual role of ILCs, which is driven by intrinsic and extrinsic factors like plasticity of ILCs and the tumor microenvironment, respectively, has aroused interest in ILCs subsets in past decade. So far, numerous ...

Effect of Mycoplasma bovis on expression of inflammatory cytokines and matrix metalloproteinases mRNA in bovine synovial cells.

Mycoplasma bovis causes chronic arthritis in calves. Mycoplasma arthritis shows severe inflammatory reactions in joints that is commonly treated with antibiotics and results in significant economic losses in the calf industry. A previous study showed that inflammatory cytokines and matrix metalloproteinases (MMPs) produced by synovial cells promote progression of the pathophysiology of bacterial arthritis. However, the mechanism underlying the pathogenesis of bovine Mycoplasma arthritis has not been fully c...

A joint effort: The interplay between the innate and the adaptive immune system in Lyme arthritis.

Articular joints are a major target of Borrelia burgdorferi, the causative agent of Lyme arthritis. Despite antibiotic treatment, recurrent or persistent Lyme arthritis is observed in a significant number of patients. The host immune response plays a crucial role in this chronic arthritic joint complication of Borrelia infections. During the early stages of B. burgdorferi infection, a major hinder in generating a proper host immune response is the lack of induction of a strong adaptive immune response. Thi...

Macrophage M1/M2 polarization and rheumatoid arthritis: A systematic review.

Rheumatoid arthritis (RA) is a chronic autoimmune inflammatory disease; the clinical manifestations are correlated with continuum multiarticular synovitis, cartilage and bone damage, and defeat of joint function, that causes disability. Involvement of internal organs is also frequent. Between the inflammatory cells involved in RA, macrophages play a key role. These cells can polarize in different phenotype and mediate the immune/inflammatory reaction as well as the reparatory phase when possible. The proper...

Treatment of immune checkpoint inhibitor-induced inflammatory arthritis.

This review summarizes the current evidence on treatment strategies for inflammatory arthritis because of cancer treatment with immune checkpoint inhibitors (ICI), prognosis of ICI-induced arthritis, and management of patients with preexisting inflammatory arthritis receiving ICI therapy.

Innate immune response in retinal homeostasis and inflammatory disorders.

Innate immune cells such as neutrophils, monocyte-macrophages and microglial cells are pivotal for the health and disease of the retina. For the maintenance of retinal homeostasis, these cells and immunosuppressive molecules in the eye actively regulate the induction and the expression of inflammation in order to prevent excessive activation and subsequent tissue damage. In the disease context, these regulatory mechanisms are modulated genetically and/or by environmental stimuli such as damage-associated mo...

Human Macrophages and Innate Lymphoid Cells: Tissue-resident Innate Immunity in Humanized Mice.

Macrophages and innate lymphoid cells (ILCs) are tissue-resident cells that play important roles in organ homeostasis and tissue immunity. Their intricate relationship with the organs they reside in allows them to quickly respond to perturbations of organ homeostasis and environmental challenges, such as infection and tissue injury. Macrophages and ILCs have been extensively studied in mice, yet important species-specific differences exist regarding innate immunity between humans and mice. Complementary to ...

Chlamydia-induced reactive arthritis diagnosed during gout flares: A case report and cumulative effect of inflammatory cytokines on chronic arthritis.

The pathology of gouty arthritis and reactive arthritis (ReA) partially overlaps, and both diseases are characterized by the production of inflammatory cytokines associated with the activation of monocytes and macrophages. However, the precise cytokine profile of cases with a coexistence of both diseases is unknown, and there are few reports on the course of treatment in patients with both gouty arthritis and ReA.

Correction: c-Maf restrains T-bet-driven programming of CCR6-negative group 3 innate lymphoid cells.


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