Resistance to Simian HIV infection is associated with high plasma interleukin-8, RANTES and Eotaxin in a macaque model of repeated virus challenges.
AuthorsPromadej-Lanier N, Hanson DL, Srinivasan P, Luo W, Adams DR, Guenthner PC, Butera S, Otten RA, Kersh EN
JournalJ Acquir Immune Defic Syndr
PubMed ID20164782
'Animal models for research on susceptibility to HIV are currently not available. Here we explore whether a macaque model of repeated low-dose rectal or vaginal virus challenges could be employed. We tested the hypothesis that susceptibility to Simian HIV is not merely stochastic in this model but rather is associated ... More
Simultaneous detection of multiple cytokines and chemokines from nonhuman primates using luminex technology.
AuthorsGiavedoni LD,
JournalJ Immunol Methods
PubMed ID15896800
'Cytokines and chemokines are soluble mediators of the immune system that play a crucial role in intercellular signaling, and in the recruitment of cells to inflammation sites. Identification of these molecules in nonhuman primates (NHP) is crucial for the understanding of complex physiological and pathological mechanisms that occur in these ... More
Abatacept modulates proinflammatory macrophage responses upon cytokine-activated T cell and Toll-like receptor ligand stimulation.
AuthorsWenink MH, Santegoets KC, Platt AM, van den Berg WB, van Riel PL, Garside P, Radstake TR, McInnes IB,
JournalAnn Rheum Dis
PubMed ID21908454
'We investigated whether Abatacept might reduce proinflammatory cytokine production by macrophages upon contact with cytokine activated T cells and/or stimulation with TLR ligands. Macrophages and cytokine stimulated T cells (Tck) were added together in the presence of Abatacept or a control Ig, with or without TLR ligands. The production of ... More
Iron status and systemic inflammation, but not gut inflammation, strongly predict gender-specific concentrations of serum hepcidin in infants in rural Kenya.
AuthorsJaeggi T, Moretti D, Kvalsvig J, Holding PA, Tjalsma H, Kortman GA, Joosten I, Mwangi A, Zimmermann MB,
JournalPLoS One
PubMed ID23460869
'Hepcidin regulation by competing stimuli such as infection and iron deficiency has not been studied in infants and it''s yet unknown whether hepcidin regulatory pathways are fully functional in infants. In this cross-sectional study including 339 Kenyan infants aged 6.0±1.1 months (mean±SD), we assessed serum hepcidin-25, biomarkers of iron status ... More
Comprehensive analysis of inflammatory immune mediators in vitreoretinal diseases.
AuthorsYoshimura T, Sonoda KH, Sugahara M, Mochizuki Y, Enaida H, Oshima Y, Ueno A, Hata Y, Yoshida H, Ishibashi T
JournalPLoS One
PubMed ID19997642
'Inflammation affects the formation and the progression of various vitreoretinal diseases. We performed a comprehensive analysis of inflammatory immune mediators in the vitreous fluids from total of 345 patients with diabetic macular edema (DME, n = 92), proliferative diabetic retinopathy (PDR, n = 147), branch retinal vein occlusion (BRVO, n ... More
Immune responses in patients with metastatic renal cell carcinoma treated with dendritic cells pulsed with tumor lysate.
AuthorsSoleimani A, Berntsen A, Svane IM, Pedersen AE,
JournalScand J Immunol
PubMed ID19874553
'Patients with metastatic renal cell carcinoma (mRCC) have a limited life expectancy but still a subset of these patients develop immune and clinical responses after immunotherapy including dendritic cell (DC) vaccination. In a recently published phase I/II trials, fourteen HLA-A2 negative patients with progressive mRCC were vaccinated with autologous DC ... More
Expression and function of CXCL16 in a novel model of gout.
AuthorsRuth JH, Arendt MD, Amin MA, Ahmed S, Marotte H, Rabquer BJ, Lesch C, Lee S, Koch AE,
JournalArthritis Rheum
PubMed ID20506383
'To better define the activity of soluble CXCL16 in the recruitment of polymorphonuclear neutrophils (PMNs) in vivo, utilizing a novel animal model of gout involving engraftment of SCID mice with normal human synovial tissue (ST) injected intragraft with gouty human synovial fluid (SF). For in vitro studies, a modified Boyden ... More
Analysis of SF and plasma cytokines provides insights into the mechanisms of inflammatory arthritis and may predict response to therapy.
'Biologic drugs have revolutionized the care of RA, but are expensive and not universally effective. To further understand the inflammatory mechanisms underlying RA and identify potential biomarkers predicting response to therapy, we measured multiple cytokine concentrations in SF of patients with inflammatory arthritides (IAs) and, in a subset of patients ... More
Expression of ICOS on human melanoma-infiltrating CD4+CD25highFoxp3+ T regulatory cells: implications and impact on tumor-mediated immune suppression.
'Interaction of ICOS with its ligand (ICOSL, B7-H2) promotes T cell responses. As CD4+CD25highFoxp3+ naturally occurring T regulatory cells in melanoma patients express ICOS, we investigated the impact of ICOS on naturally occurring T regulatory cell function.' ... More
Early rheumatoid arthritis is characterized by a distinct and transient synovial fluid cytokine profile of T cell and stromal cell origin.
AuthorsRaza K, Falciani F, Curnow SJ, Ross EJ, Lee CY, Akbar AN, Lord JM, Gordon C, Buckley CD, Salmon M
JournalArthritis Res Ther
PubMed ID15987480
'Pathological processes involved in the initiation of rheumatoid synovitis remain unclear. We undertook the present study to identify immune and stromal processes that are present soon after the clinical onset of rheumatoid arthritis (RA) by assessing a panel of T cell, macrophage, and stromal cell related cytokines and chemokines in ... More
Immune responses to collagen-IV and fibronectin in renal transplant recipients with transplant glomerulopathy.
AuthorsAngaswamy N, Klein C, Tiriveedhi V, Gaut J, Anwar S, Rossi A, Phelan D, Wellen JR, Shenoy S, Chapman WC, Mohanakumar T,
Journal
PubMed ID24410875
'Antibodies (Abs) to donor HLA (donor-specific antibodies [DSA]) have been associated with transplant glomerulopathy (TG) following kidney transplantation (KTx). Immune responses to tissue-restricted self-antigens (self-Ags) have been proposed to play a role in chronic rejection. We determined whether KTx with TG have immune responses to self-Ags, Collagen-IV (Col-IV) and fibronectin ... More
Absence of a classically activated macrophage cytokine signature in peripheral spondylarthritis, including psoriatic arthritis.
AuthorsVandooren B, Noordenbos T, Ambarus C, Krausz S, Cantaert T, Yeremenko N, Boumans M, Lutter R, Tak PP, Baeten D
JournalArthritis Rheum
PubMed ID19333931
'Peripheral spondylarthritis (SpA) is characterized by macrophages that express CD163, a marker of alternative activation (M2). The purpose of this study was to assess whether this differential infiltration with macrophage subsets was associated with a different local inflammatory milieu in SpA as compared with rheumatoid arthritis (RA).' ... More
Antibodies to self-antigens predispose to primary lung allograft dysfunction and chronic rejection.
AuthorsBharat A, Saini D, Steward N, Hachem R, Trulock EP, Patterson GA, Meyers BF, Mohanakumar T
JournalAnn Thorac Surg
PubMed ID20868794
Primary graft dysfunction (PGD) is a known risk factor for bronchiolitis obliterans syndrome (BOS) after lung transplantation. Here, we report that preformed antibodies to self-antigens increase PGD risk and promote BOS. ... More
Reproducibility of serum cytokines and growth factors.
AuthorsGu Y, Zeleniuch-Jacquotte A, Linkov F, Koenig KL, Liu M, Velikokhatnaya L, Shore RE, Marrangoni A, Toniolo P, Lokshin AE, Arslan AA
JournalCytokine
PubMed ID19058974
In most studies, circulating biomarkers are usually assessed from a single sample, assuming that this single measurement represents the long-term biomarker status of the individual. Such an assumption is rarely tested although it may not be valid for all biomarkers. The objective of this study was to investigate the temporal ... More
Allergic sensitisation in tuberculosis patients at the time of diagnosis and following chemotherapy.
AuthorsEllertsen LK, Storla DG, Diep LM, Brokstad KA, Wiker HG, Hetland G
JournalBMC Infect Dis
PubMed ID19558655
It is still a matter of debate whether there is an association between infection with Mycobacterium tuberculosis (M. tuberculosis) and allergy. Previously, we have shown higher levels of specific IgE to different inhalant allergens and total IgE in tuberculosis (TB) patients compared to controls. The objectives of this study were ... More
T helper cell type 1 (Th1), Th2 and Th17 responses to myelin basic protein and disease activity in multiple sclerosis.
Autoreactive T cells are thought to play an essential role in the pathogenesis of multiple sclerosis (MS). We examined the stimulatory effect of human myelin basic protein (MBP) on mononuclear cell (MNC) cultures from 22 patients with MS and 22 sex-matched and age-matched healthy individuals, and related the patient responses ... More
Acute neuronal injury and blood genomic profiles in a nonhuman primate model for ischemic stroke.
AuthorsRodriguez-Mercado R, Ford GD, Xu Z, Kraiselburd EN, Martinez MI, Eterovic VA, Colon E, Rodriguez IV, Portilla P, Ferchmin PA, Gierbolini L, Rodriguez-Carrasquillo M, Powell MD, Pulliam JV, McCraw CO, Gates A, Ford BD,
JournalComp Med
PubMed ID23114047
The goal of this study was to characterize acute neuronal injury in a novel nonhuman primate (NHP) ischemic stroke model by using multiple outcome measures. Silk sutures were inserted into the M1 segment of the middle cerebral artery of rhesus macaques to achieve permanent occlusion of the vessel. The sutures ... More
Trypanosoma cruzi (Chagas' disease agent) reduces HIV-1 replication in human placenta.
Several factors determine the risk of HIV mother-to-child transmission (MTCT), such as coinfections in placentas from HIV-1 positive mothers with other pathogens. Chagas' disease is one of the most endemic zoonoses in Latin America, caused by the protozoan Trypanosoma cruzi. The purpose of the study was to determine whether T. ... More