Journal articleJ Hum Immun · September 7, 2026
Deficiency of adenosine deaminase 2 (DADA2) is an autoinflammatory disease with diverse phenotypes. We describe the genetics, phenotypes, and treatment of n = 48 DADA2 patients from Germany, Austria, and Switzerland. We report a high incidence of hematolog ...
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Journal articleJ Hum Immun · September 7, 2026
This case report describes progressive multifocal leukoencephalopathy in a patient with ADA-SCID status after gene therapy. Persistent metabolic dysfunction likely contributed to JC virus reactivation, highlighting this rare complication of ADA-SCID and in ...
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Journal articleArthritis Rheumatol · March 2026
OBJECTIVE: Deficiency of adenosine deaminase 2 (DADA2) is a monogenic autoinflammatory disease manifested as polyarteritis nodosa, stroke, and bone marrow failure. Leveraging an international cohort of 200 DADA2 cases, we aimed to characterize the diagnost ...
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Journal articleJ Hum Immun · January 5, 2026
Delayed-onset ADA deficiency was identified in two patients who were not detected by standard newborn screening for SCID. These findings support expanding first-tier newborn screening to include purine profiling alongside TREC assays, ensuring early diagno ...
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Journal articleCurr Allergy Asthma Rep · January 3, 2026
PURPOSE OF REVIEW: Adenosine deaminase 2 (ADA2) is predominantly expressed by and secreted from activated monocytes and macrophages into plasma. This review explores the utility of ADA2 as a biomarker of monocyte/macrophage activation in a range of conditi ...
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Journal articleLab Invest · August 2025
Warts, hypogammaglobulinemia, infections, myelokathexis (WHIM) syndrome is a rare primary immunodeficiency disorder predominantly caused by germline CXCR4 variants. Bone marrow (BM) evaluation showing myelokathexis helps to establish the diagnosis of WHIM ...
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Journal articleJ Clin Immunol · March 27, 2025
PURPOSE: The safety and tolerability of elapegademase (elapegademase-lvlr; Revcovi®) a PEGylated recombinant adenosine deaminase (ADA), were demonstrated in two Phase 3 clinical trials in the U.S. and Japan in patients with ADA-deficient severe combined im ...
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Journal articleJ Allergy Clin Immunol · January 2025
BACKGROUND: Deficiency of adenosine deaminase (ADA or ADA1) has broad clinical and genetic heterogeneity. Screening techniques can identify asymptomatic infants whose phenotype and prognosis are indeterminate, and who may carry ADA variants of unknown sign ...
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Journal articleFront Immunol · 2025
BACKGROUND: Adenosine deaminase 2 deficiency (DADA-2) is an autoinflammatory syndrome caused by mutations in the ADA2 gene. ADA-2 functions as an enzyme in purine metabolism and is presumed to play roles in immune regulation. The clinical spectrum of DADA2 ...
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Journal articleAsthma Allergy Immunology · August 1, 2024
Purine nucleoside phosphorylase (PNP) deficiency is a rare immunodeficiency syndrome generally characterized by profound T cell deficiency and variable B cell function. More than half of PNP-deficient patients present with neurological dysfunction, with ma ...
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Journal articleBlood · July 4, 2024
We investigated efficacy and safety of mavorixafor, an oral CXCR4 antagonist, in participants with warts, hypogammaglobulinemia, infections, and myelokathexis (WHIM) syndrome, a rare immunodeficiency caused by CXCR4 gain-of-function variants. This randomiz ...
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Journal articleNat Med · June 2024
Sjögren's disease (SjD) is a chronic, systemic autoimmune disease with no approved disease-modifying therapies. Dazodalibep (DAZ), a novel nonantibody fusion protein, is a CD40 ligand antagonist that blocks costimulatory signals between T and B cells and a ...
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Journal articleJ Clin Immunol · April 27, 2024
PURPOSE: Patients with adenosine deaminase 1 deficient severe combined immunodeficiency (ADA-SCID) are initially treated with enzyme replacement therapy (ERT) with polyethylene glycol-modified (PEGylated) ADA while awaiting definitive treatment with hemato ...
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Journal articleCells · March 23, 2023
Paget's Disease of Bone (PDB) is a metabolic bone disease that is characterized by dysregulated osteoclast function leading to focal abnormalities of bone remodeling. It can lead to pain, fracture, and bone deformity. G protein-coupled receptor kinase 3 (G ...
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Journal articleCurr Allergy Asthma Rep · November 2022
PURPOSEOF REVIEW: The pathogenesis of eosinophilic granulomatosis with polyangiitis (eGPA) is driven largely by CD4 + type 2 helper T cells (Th2), B cells, and eosinophils. Interleukin (IL)-4 and IL-13 are critical cytokines in Th2 cell-mediated inflammati ...
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Journal articleJ Allergy Clin Immunol · May 2022
Secondary hypogammaglobulinemia (SHG) is characterized by reduced immunoglobulin levels due to acquired causes of decreased antibody production or increased antibody loss. Clarification regarding whether the hypogammaglobulinemia is secondary or primary is ...
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Journal articleJ Clin Rheumatol · April 1, 2022
BACKGROUND/OBJECTIVE: A growing number of health systems have implemented eConsults to improve access to specialty advice, but few studies have described their use in rheumatology or impact on visit wait times. We evaluated the uptake of an eConsult progra ...
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Journal articleExpert opinion on orphan drugs · March 28, 2022
Introduction
Humans have two adenosine deaminase isozymes, ADA1 and ADA2, which differ in affinity for their substrates, adenosine (Ado) and 2ʹdeoxyadenosine (dAdo), and their localization. Inherited deficiencies of ADA1 and ADA2 compromise different aspe ...
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Journal articleStem Cell Res Ther · January 29, 2022
BACKGROUND: The bone marrow niche supports hematopoietic cell development through intimate contact with multipotent stromal mesenchymal stem cells; however, the intracellular signaling, function, and regulation of such supportive niche cells are still bein ...
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Journal articleAdv Ther (Weinh) · January 2022
Arthritis is a leading cause of disability in adults, which can be intensely incapacitating. The location and intensity of the pain is both subjective and challenging to manage. Consequently, patient-directed delivery of anti-inflammatories is an essential ...
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Journal articleFront Immunol · 2022
G-protein coupled receptor kinases (GRKs) participate in the regulation of chemokine receptors by mediating receptor desensitization. They can be recruited to agonist-activated G-protein coupled receptors (GPCRs) and phosphorylate their intracellular parts ...
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Journal articleNat Rev Chem · November 2021
More than four decades have passed since the first example of a light-activated (caged) compound was described. In the intervening years, a large number of light-responsive derivatives have been reported, several of which have found utility under a variety ...
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Journal articleScience · June 18, 2021
Neutrophils communicate with each other to form swarms in infected organs. Coordination of this population response is critical for the elimination of bacteria and fungi. Using transgenic mice, we found that neutrophils have evolved an intrinsic mechanism ...
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Journal articleCurr Allergy Asthma Rep · March 25, 2021
PURPOSE OF REVIEW: The purpose of this review is to recognize clinical features of Paget's disease of bone and to describe how the osteoclast, a myeloid-derived cell responsible for bone resorption, contributes to the disease. RECENT FINDINGS: Recent studi ...
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Journal articleCurr Allergy Asthma Rep · March 5, 2021
PURPOSE OF REVIEW: Ochronosis and alkaptonuria are manifestations of the same condition-a rare autosomal recessive disorder resulting from a constitutional lack of homogentisate 1,2-dioxygenase (HGD) with the consequent accumulation of homogentisic acid (H ...
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Journal articleCurr Allergy Asthma Rep · January 21, 2021
PURPOSE OF REVIEW: Told from the viewpoint of rheumatologists, this review tells the story of hydroxychloroquine and its swift ascent to become a household name as a therapeutic strategy against the novel SARS-CoV-2 virus. This review describes the history ...
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Journal articleStem Cells · January 2021
Mesenchymal stromal cells (MSCs) are widely used in clinical trials because of their ability to modulate inflammation. The success of MSCs has been variable over 25 years, most likely due to an incomplete understanding of their mechanism. After MSCs are in ...
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Journal articleNat Rev Chem · 2021
More than four decades have passed since the first example of a light-activated (caged) compound was described. In the intervening years, a large number of light-responsive derivatives have been reported, several of which have found utility under a variety ...
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Journal articleExpert Opinion on Orphan Drugs · January 1, 2021
Introduction: Humans have two adenosine deaminase isozymes, ADA1 and ADA2, which differ in affinity for their substrates, adenosine (Ado) and 2ʹdeoxyadenosine (dAdo), and their localization. Inherited deficiencies of ADA1 and ADA2 compromise different aspe ...
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Journal articleJ Allergy Clin Immunol · January 2020
Genetic testing has become an integral component of the diagnostic evaluation of patients with suspected primary immunodeficiency diseases. Results of genetic testing can have a profound effect on clinical management decisions. Therefore clinical providers ...
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Journal articleSmall · September 2019
Herein, the use of red blood cells (RBCs) as carriers of cytoplasmically interned phototherapeutic agents is described. Photolysis promotes drug release from the RBC carrier thereby providing the means to target specific diseased sites. This strategy is re ...
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Journal articleCurr Allergy Asthma Rep · July 2, 2019
PURPOSE OF REVIEW: The goal of this review is to summarize the field to date and to discuss strengths and limitations of low-level laser (light) therapy (LLLT) for the future investigation as a treatment of inflammatory disease. RECENT FINDINGS: LLLT is a ...
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Journal articleMol Immunol · February 2019
Chemerin receptor (CMKLR1) is a G protein-coupled receptor (GPCR) implicated in macrophage-mediated inflammation and in several forms of human arthritis. Analogous to other GPCR, CMKLR1 is likely regulated by G protein-coupled receptor kinase (GRK) phospho ...
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Journal articleDiagn Microbiol Infect Dis · January 2019
OBJECTIVE: Predictive factors associated with clinical outcomes of chronic norovirus infection (CNI) in primary immunodeficiency diseases (PIDD) are lacking. METHOD: We sought to characterize CNI using a multi-institutional cohort of patients with PIDD and ...
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Journal articleNat Genet · October 2017
A major challenge in inflammatory bowel disease (IBD) is the integration of diverse IBD data sets to construct predictive models of IBD. We present a predictive model of the immune component of IBD that informs causal relationships among loci previously li ...
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Journal articleCurr Biol · May 8, 2017
Navigation of cells along gradients of guidance cues is a determining step in many developmental and immunological processes. Gradients can either be soluble or immobilized to tissues as demonstrated for the haptotactic migration of dendritic cells (DCs) t ...
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Journal articleAnal Chem · August 2, 2016
The etiology of rheumatoid arthritis (RA) is poorly understood, and 30% of patients are unresponsive to established treatments targeting tumor necrosis factor α (TNFα). Akt kinase is implicated in TNFα signaling and may act as a barometer of patient respon ...
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Journal articleCurr Allergy Asthma Rep · July 2016
Immune gamma globulin (IgG) has a long history in the treatment of both primary immune deficiency and autoimmune disorders. Disease indications continue to expand and new-generation products increase the versatility of delivery. This review encompasses a h ...
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Journal articleJ Immunol · May 15, 2016
Apoptotic debris, autoantibody, and IgG-immune complexes (ICs) have long been implicated in the inflammation associated with systemic lupus erythematosus (SLE); however, it remains unclear whether they initiate immune-mediated events that promote disease. ...
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Journal articlePLoS One · 2016
Triple negative breast cancer (TNBC) is a heterogeneous disease that has a poor prognosis and limited treatment options. Chemokine receptor interactions are important modulators of breast cancer metastasis; however, it is now recognized that quantitative s ...
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Journal articleNanomedicine · October 2015
UNLABELLED: Nanoparticles (NPs) are cleared by monocytes and macrophages. Chemokines CCL2 and CCL5 are key mediators for recruitment of these immune cells into tumors and tissues. The purpose of this study was to investigate effects of CCL2 and CCL5 on the ...
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Journal articleClin Cancer Res · December 1, 2014
PURPOSE: Tumor cells are surrounded by a complex microenvironment. The purpose of our study was to evaluate the role of heterogeneity of the tumor microenvironment in the variability of nanoparticle (NP) delivery and efficacy. EXPERIMENTAL DESIGNS: C3(1)-T ...
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Journal articleCurr Allergy Asthma Rep · September 2014
Autoimmune lymphoproliferative syndrome (ALPS) is characterized by immune dysregulation due to a defect in lymphocyte apoptosis. The clinical manifestations may be noted in multiple family members and include lymphadenopathy, splenomegaly, increased risk o ...
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Journal articleCurr Allergy Asthma Rep · February 2014
Recent investigations have expanded our knowledge of the regulatory bone marrow (BM) niche, which is critical in maintaining and directing hematopoietic stem cell (HSC) self-renewal and differentiation. Osteoblasts, mesenchymal stem cells (MSCs), and CXCL1 ...
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Journal articleCurr Rheumatol Rev · 2014
A variety of imaging modalities assists in the diagnosis and assessment of rheumatoid arthritis and of other rheumatic disorders; however, the definitive diagnosis of inflammatory arthritides can be challenging, especially in the early stages of disease. C ...
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Journal articleJ Leukoc Biol · December 2013
Chemokine receptor interactions coordinate leukocyte migration in inflammation. Chemokine receptors are GPCRs that when activated, are phosphorylated by GRKs to turn off G protein-mediated signaling yet recruit additional signaling machinery. Recently, GRK ...
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Journal articleCurr Allergy Asthma Rep · August 2013
Primary immunodeficiencies (PID) comprise a diverse group of clinical disorders with varied genetic defects. Paradoxically, a substantial proportion of PID patients develop autoimmune phenomena in addition to having increased susceptibility to infections f ...
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Journal articleMol Immunol · June 2013
Polymorphism at the GPSM3 gene locus is inversely associated with four systemic autoimmune diseases, including rheumatoid arthritis and ankylosing spondylitis. G-protein signaling modulator-3 (GPSM3) expression is most pronounced in myeloid cells, in which ...
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Journal articleCurr Allergy Asthma Rep · December 2012
Many biologic agents that were first approved for the treatment of malignancies are now being actively investigated and used in a variety of autoimmune diseases such as rheumatoid arthritis (RA), antineutrophil cytoplasmic antibody (ANCA)-associated vascul ...
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Journal articleArthritis Rheum · May 2012
OBJECTIVE: CX(3) CR1 is a chemokine receptor that uniquely binds to its ligand fractalkine (CX(3) CL1) and has been shown to be important in inflammatory arthritis responses, largely due to its effects on cellular migration. This study was undertaken to te ...
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Journal articleJ Clin Immunol · February 2012
Rheumatoid arthritis (RA) is one of the most common systemic autoimmune diseases. The presence of antibodies to cyclic citrullinated peptide (CCP) is better at discriminating RA patients and is also associated with significantly more disease activity compa ...
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Journal articlePLoS One · 2011
CCR2 is considered a proinflammatory mediator in many inflammatory diseases such as rheumatoid arthritis. However, mice lacking CCR2 develop exacerbated collagen-induced arthritis. To explore the underlying mechanism, we investigated whether autoimmune-ass ...
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Journal articleBMJ Case Rep · December 20, 2010
A 29-year-old female presented with intermittent nausea, vomiting, fevers, abdominal pain and fatigue. CT scans of the abdomen revealed inflammatory changes within the mesentery and small bowel. Histopathology of the mesentery and omentum showed chronic in ...
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Journal articleClin Exp Rheumatol · 2009
OBJECTIVES: This report documents a multimodal nanoparticle (MNP) contrast agent, containing embedded luminophores and surface-immobilized gadolinium chelates, as a contrast agent of inflamed synovium in a collagen induced arthritis (CIA) model. METHODS: D ...
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Journal articleScand J Rheumatol · 2009
OBJECTIVE: S100A8 (calgranulin A, MRP8) and S100A9 (calgranulin B, MRP14) are calcium-binding proteins highly expressed by activated myeloid cells and thought to be involved in the pathogenesis of inflammatory diseases. Circulating levels of S100A8/S100A9 ...
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Journal articleClin Immunol · October 2008
OBJECTIVE: Chemokine receptors are G-protein coupled receptors (GPCRs) phosphorylated by G-protein receptor kinases (GRKs) after ligand-mediated activation. We hypothesized that GRK subtypes differentially regulate granulocyte chemotaxis and clinical disea ...
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Journal articleMol Ther · July 2008
Tumor necrosis factor-alpha (TNF-alpha) is a key mediator of inflammatory diseases, including rheumatoid arthritis (RA), and anti-TNF-alpha drugs such as etanercept are effective treatments. Splice-switching oligonucleotides (SSOs) are a new class of drugs ...
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Journal articleMol Ther · July 2008
Tumor necrosis factor-α (TNF-α) is a key mediator of inflammatory diseases, including rheumatoid arthritis (RA), and anti-TNF-α drugs such as etanercept are effective treatments. Splice-switching oligonucleotides (SSOs) are a new class of drugs designed to ...
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Journal articlePathophysiology · February 21, 2006
Leukocyte infiltration into the joint space and tissues is an essential component of the pathogenesis of rheumatoid arthritis (RA). In this review, we will summarize the current understanding of the mechanisms of leukocyte trafficking into the synovium, fo ...
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Journal articleInvest Ophthalmol Vis Sci · November 2003
PURPOSE: TGF-beta exerts suppressive effects on immunity, but its potential applications in therapy of ocular autoimmunity have not been widely explored. In the present study, the effects of TGF-beta on uveitogenic T cells were examined. METHODS: The effec ...
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Journal articleJ Rheumatol · February 2003
Systemic lupus erythematosus (SLE) pathogenesis is mediated in part by autoantibodies. We describe a patient with central nervous system lupus who developed a loss of B cells with associated hypogammaglobulinemia and sinopulmonary infections requiring intr ...
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Journal articleInvest Ophthalmol Vis Sci · May 1999
PURPOSE: Nitric oxide (NO) is an important mediator of inflammatory tissue damage. The present study addresses the question whether inducible nitric oxide synthase (iNOS), and consequently the ability to upregulate NO, is required to effect the pathogenesi ...
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Journal articleJ Exp Med · January 18, 1999
Pathogenic effector T cells in experimental autoimmune uveitis (EAU) are T helper type 1-like, and interleukin (IL)-12 is required for their generation and function. Therefore, we expected that IL-12 administration would have disease-enhancing effects. Mic ...
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Journal articleJ Immunol · July 1, 1998
Experimental autoimmune uveitis (EAU) has been associated with a Th1 response. However, in IFN-gamma-deficient mice, EAU develops in the context of an effector response having Th2-like elements, and administration of IL-12 to mice immunized for EAU inducti ...
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Journal articleInvest Ophthalmol Vis Sci · April 1998
PURPOSE: To quantify S-antigen-specific (S-Ag) T cells in the retina after adoptive transfer, and to evaluate their role in the initiation and progress of destructive ocular inflammation in experimental autoimmune uveoretinitis (EAU). METHODS: Lewis rats w ...
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Journal articleFASEB Journal · March 20, 1998
Pathogenic T cells involved in experimental autoimmune uveitis (EAU) are thought to be Th1-like. However, IFN-γ deficient (GKO) mice develop EAU in the context of an effector response having many elements of a Th2-like cytokine profile. IL-12 promotes Th1 ...
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Journal articleJ Immunol · June 15, 1997
Experimental autoimmune uveitis (EAU) is a T cell-mediated disease that targets the neural retina and serves as a model of human uveitis. Uveitogenic effector T cells have a Th1-like phenotype (high IFN-gamma, low IL-4), and genetic susceptibility to EAU i ...
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Journal articleFASEB Journal · December 1, 1996
TGF-β is thought to have a central role in the control of cell-mediated autoimmunity. We wished to examine the effect of TGF- β on stimulation of the uveitogenic rat T cell line SP35, specific to peptide 35 of the retinal S-Antigen. SP35 cells were stimula ...
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Journal articleInvestigative Ophthalmology and Visual Science · February 15, 1996
Purpose: Numerous studies have implicated the suppressive cytokine TGF-β1 as having a central role in the control of cell-mediated autoimmunity. We therefore wished to examine the effect of TGF-β1 on stimulation of the highly uveitogenic rat T cell line SP ...
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