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Magdalena Kopec-Medrek, Eugene J Kucharz
BACKGROUND: Fibulin-3 (Fib-3) is a new potential biomarker of articular cartilage metabolism. OBJECTIVES: The aim of the study was to evaluate the effect of anti-TNF therapy on serum fibulin-3, cartilage oligomeric matrix protein (COMP), procollagen II C-propeptide (PIICP), and urinary C-terminal telopeptide of type II collagen (CTX-II) levels in relation to calprotectin (MRP8/14) and disease activity in rheumatoid arthritis patients. MATERIAL AND METHODS: In the study, 35 female patients with rheumatoid arthritis (RA) were investigated...
March 13, 2018: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
Li Yunchun, Wang Yue, Fang Zhong Jun, Su Qizhu, Ding Liumei
OBJECTIVES: To investigate the serum level of Myeloid-Related Protein 8/14 complex (MRP8/14) and to predict and monitor the response to biologic treatment in rheumatoid arthritis (RA) patients. METHODS: Each patient underwent clinical examination and blood sampling for assessment of serum high-sensitivity C-reactive protein (hs-CRP) levels, erythrocyte sedimentation rate (ESR), rheumatoid factors (RF), anti-cyclic citrullinated protein antibodies (anti-CCP), and serum concentrations of MRP8/14 protein complexes (myeloid-related proteins, MRP8/14) were measured at baseline, and weeks 4 and 12 (after initiation of treatment)...
January 2018: Annals of Clinical and Laboratory Science
Faekah Gohar, Janneke Anink, Halima Moncrieffe, Lisette W A Van Suijlekom-Smit, Femke H M Prince, Marion A J van Rossum, Koert M Dolman, Esther P A H Hoppenreijs, Rebecca Ten Cate, Simona Ursu, Lucy R Wedderburn, Gerd Horneff, Michael Frosch, Dirk Foell, Dirk Holzinger
OBJECTIVE: Around one-third of patients with juvenile idiopathic arthritis (JIA) fail to respond to first-line methotrexate (MTX) or anti-tumor necrosis factor (TNF) therapy, with even fewer achieving ≥ American College of Rheumatology Pediatric 70% criteria for response (ACRpedi70), though individual responses cannot yet be accurately predicted. Because change in serum S100-protein myeloid-related protein complex 8/14 (MRP8/14) is associated with therapeutic response, we tested granulocyte-specific S100-protein S100A12 as a potential biomarker for treatment response...
January 15, 2018: Journal of Rheumatology
Ruchika Goel, Aswin Nair, Jayakanthan Kabeerdoss, Hindhumathi Mohan, Visalakshi Jeyaseelan, George Joseph, Debashish Danda
The aim of the study was to explore utility of serial serum myeloid-related protein 8/14 (MRP8/14) as a biomarker of clinical disease activity and angiographic progression in Takayasu arteritis (TA). Serum MRP8/14 levels were assayed by commercial ELISA for 85 TA patients and 24 healthy controls at baseline, and for 56 and 21 TA patients during follow-up visits R1 and R2, respectively. Disease was categorised as active, indeterminate and stable according to Indian Takayasu Arteritis score (ITAS 2010), ITAS-A(CRP) and angiography...
December 1, 2017: Rheumatology International
Masashi Sakuma, Atsushi Tanaka, Norihiko Kotooka, Yutaka Hikichi, Shigeru Toyoda, Shichiro Abe, Isao Taguchi, Koichi Node, Daniel I Simon, Teruo Inoue
BACKGROUND: The alarmin family member myeloid-related protein (MRP)-14 (S100A9), which has been identified by platelet transcriptional profiling as an acute myocardial infarction gene, regulates vascular inflammation and thrombosis. Elevated plasma levels of MRP-8/14 (S100A8/A9) heterodimer predict first and recurrent cardiovascular events. The aim of this study was to elucidate pathophysiological roles of MRP-8/14 in acute coronary syndrome (ACS). METHODS AND RESULTS: In 38 consecutive ACS patients, the MRP-8/14 level in coronary artery blood obtained at thrombus aspiration was higher in 23 patients, in whom aspirated thrombus was confirmed, compared to the 15 patients, in whom it was absent [4...
December 15, 2017: International Journal of Cardiology
Talkea Schmidt, Nadine Lorenz, Verena K Raker, Maria I Schmidgen, Karsten Mahnke, Alexander Enk, Johannes Roth, Kerstin Steinbrink
No abstract text is available yet for this article.
September 22, 2017: Journal of Investigative Dermatology
Vasilios A Morikis, Shannon Chase, Ted Wun, Elliot L Chaikof, John L Magnani, Scott I Simon
E-selectin extends from the plasma membrane of inflamed endothelium and serves to capture leukocytes from flowing blood via long-lived catch-bonds that support slow leukocyte rolling under shear stress. Its ligands are glycosylated with the tetrasaccharide sialyl Lewisx (sLex ), which contributes to bond affinity and specificity. E-selectin-mediated rolling transmits signals into neutrophils that trigger activation of high-affinity β2 -integrins necessary for transition to shear-resistant adhesion and transendothelial migration...
November 9, 2017: Blood
Elena Belelli, Chiara Passarelli, Manuela Pardeo, Dirk Holzinger, Fabrizio De Benedetti, Antonella Insalaco
OBJECTIVES: Hyperzincaemia/hypercalprotectinemia (Hz/Hc) syndrome is a recently described condition caused by a specific de novo mutation (E250K) affecting PSTPIP1 gene. It has a phenotype distinct from classical pyogenic arthritis, pyoderma gangrenosum, and acne (PAPA) syndrome that includes severe systemic and cutaneous inflammation, hepatosplenomegaly, arthritis without sequelae, pancytopenia and failure to thrive. METHODS: We describe an 8-year-old boy who presented recurrent right knee swelling mimicking septic arthritis and persistent bone marrow involvement, without cutaneous involvement...
November 2017: Clinical and Experimental Rheumatology
Jaryna Bojko
OBJECTIVES: The aim of the investigation was to compare blood calprotectin (MRP8/14, S100A 8/9) levels in patients with systemic-onset, polyarticular, RF-negative and oligoarticular subtypes of juvenile idiopathic arthritis (JIA), and to explore links between blood calprotectin levels and clinical and laboratory markers of JIA activity. MATERIAL AND METHODS: Measurement of calprotectin in blood serum was performed in 160 patients with JIA followed up at Lviv Regional Council Public Institution "Western-Ukrainian Specialised Children's Medical Centre"...
2017: Reumatologia
Monica Falleni, Federica Savi, Delfina Tosi, Elena Agape, Amilcare Cerri, Laura Moneghini, Gaetano P Bulfamante
Skin malignant melanoma (MM) is an aggressive cancer with an increasing incidence with limited therapies in advanced stages. Tumor-associated macrophages (TAMs) are the major immune constituent of the MM microenvironment and contribute toward its prognosis. TAMs' characterization and localization in human cancer is important to understand cancer progression and to identify molecular personalized therapies. M2 TAMs in stage I-II MMs are associated with worse prognostic parameters. A comprehensive M1-macrophage and M2-macrophage intratumoral localization and quantification in all stages of skin MMs is documented here with its clinical significance...
June 2017: Melanoma Research
Yunmei Wang, Jackelyn B Golden, Yi Fritz, Xiufen Zhang, Doina Diaconu, Maya I Camhi, Huiyun Gao, Sean M Dawes, Xianying Xing, Santhi K Ganesh, Johann E Gudjonsson, Daniel I Simon, Thomas S McCormick, Nicole L Ward
Psoriasis patients are at increased risk of heart attack and stroke and have elevated MRP8/14 levels that predict heart attack. The KC-Tie2 psoriasiform mouse model exhibits elevated MRP8/14 and is prothrombotic. Mrp14(-/-) mice, in contrast, are protected from thrombosis, but, surprisingly, KC-Tie2xMrp14(-/-) mice remain prothrombotic. Treating KC-Tie2xMrp14(-/-) mice with anti-IL-23p19 antibodies reversed the skin inflammation, improved thrombosis, and decreased IL-6. In comparison, IL-6 deletion from KC-Tie2 animals improved thrombosis despite sustained skin inflammation, suggesting that thrombosis improvements following IL-23 inhibition occur secondary to IL-6 decreases...
December 8, 2016: JCI Insight
Anna-Helene Bohr, Freddy Karup Pedersen, Claus Henrik Nielsen, Klaus Gottlob Müller
BACKGROUND: The purpose of the study is to determine levels of total cholesterol (TC), low-density, and high-density lipoprotein fractions of cholesterol (LDLc and HDLc), in patients with juvenile idiopathic arthritis (JIA), and relate those to disease activity, overweight, and physical activity (PA), testing the hypothesis that the levels of cholesterol fractions are associated with inflammation as well as with overweight and low PA. METHODS: Two hundred ten patients with JIA were included in this descriptive cross-sectional study...
November 11, 2016: Pediatric Rheumatology Online Journal
Latika Gupta, Shruti Bhattacharya, Vikas Agarwal, Amita Aggarwal
Monocytes of patients with ankylosing spondylitis (AS) have toll-like receptor 4 (TLR4) overexpression on their monocytes. Myeloid-related protein (MRP) 8/14 protein complexes are calcium-binding proteins, which act as endogenous ligands to TLR4. Thus, we studied the levels of MRP8/14 in adult AS patients. MRP8/14 levels were assessed in 99 adult AS patients satisfying Assessments in Ankylosing Spondylitis International Society 2010 criteria and 71 healthy controls by ELISA. Patient disease parameters like patient and physician global assessment, Bath Ankylosing Spondylitis Disease Activity Index (BASDAI), swollen and tender joint count, entheseal count by Maastricht enthesitis index, erythrocyte sedimentation rate (ESR), and C-reactive protein (CRP) were also recorded...
December 2016: Clinical Rheumatology
Maha A Al-Mohaissen, Ronald G Carere, G B John Mancini, Karin H Humphries, Beth A Whalen, Terry Lee, Frank X Scheuermeyer, Andrew P Ignaszewski
BACKGROUND: Markers of plaque destabilization and disruption may have a role in identifying non-STE- type 1 Myocardial Infarction in patients presenting with troponin elevation. We hypothesized that a plaque disruption index (PDI) derived from multiple biomarkers and measured within 24 hours from the first detectable troponin in patients with acute non-STE- type 1 MI (NSTEMI-A) will confirm the diagnosis and identify these patients with higher specificity when compared to individual markers and coronary angiography...
2016: PloS One
Somya Sharma, Laxman S Meena
The host-pathogen interaction and involvement of calcium (Ca(2+)) signaling in tuberculosis infection is crucial and plays a significant role in pathogenesis. Ca(2+) is known as a ubiquitous second messenger that could control multiple processes and is included in cellular activities like division, motility, stress response, and signaling. However, Ca(2+) is thought to be a regulative molecule in terms of TB infection but its binding relation with proteins/substrates molecules which are influenced with Ca(2+) concentrations in host-pathogen interaction requires attention...
February 2017: Applied Biochemistry and Biotechnology
Tom Nilsen, Kathrin Sunde, Lars-Olof Hansson, Aleksandra Mandic Havelka, Anders Larsson
BACKGROUND: Fecal calprotectin assays are widely used to exclude inflammatory bowel disease (IBD) in patients with suspected IBD. A problem with the fecal calprotectin assays is the rather long test-turnaround times. A particle enhanced turbidimetric immunoassays (PETIA) for fecal calprotectin would reduce test-turnaround times and would permit more laboratories to perform the measurements. The aim of this study was to evaluate a new feces calprotectin PETIA. METHOD: Using routine fecal samples the feces calprotectin PETIA was validated on two chemistry analyzers, Mindray BS-380 and Cobas 501...
September 15, 2016: Journal of Clinical Laboratory Analysis
Monika Pruenster, Thomas Vogl, Johannes Roth, Markus Sperandio
Neutrophils and monocytes belong to the first line of immune defence cells and are recruited to sites of inflammation during infection or sterile injury. Both cells contain huge amounts of the heterodimeric protein S100A8/A9 in their cytoplasm. S100A8/A9 belongs to the Ca2+ binding S100 protein family and has recently gained a lot of interest as a critical alarmin modulating the inflammatory response after its release (extracellular S100A8/A9) from neutrophils and monocytes. Extracellular S100A8/A9 interacts with the pattern recognition receptors Toll-like receptor 4 (TLR4) and Receptor for Advanced Glycation Endproducts (RAGE) promoting cell activation and recruitment...
November 2016: Pharmacology & Therapeutics
Dirk Holzinger, Johannes Roth
PURPOSE OF REVIEW: To give an overview about the expanding spectrum of autoinflammatory diseases due to mutations in proline-serine-threonine phosphatase-interacting protein 1 (PSTPIP1) and new insights into their pathogenesis. RECENT FINDINGS: In addition to classical pyogenic sterile arthritis, pyoderma gangrenosum, and acne (PAPA) syndrome, PSTPIP1-associated myeloid-related proteinemia inflammatory (PAMI) syndrome has been described as a distinct clinical phenotype of PSTPIP1-associated inflammatory diseases (PAID) and other entities are emerging...
September 2016: Current Opinion in Rheumatology
William R Swindell, Xianying Xing, Yi Fritz, Doina Diaconu, Daniel I Simon, Nicole L Ward, Johann E Gudjonsson
The Mrp8 and Mrp14 proteins (calprotectin) accumulate within tissues during aging and may contribute to chronic inflammation. To address this possibility, we evaluated female calprotectin-deficient Mrp14-KO and wild-type (WT) mice at 5 and 24 months of age. However, there was no evidence that age-related inflammation is blunted in KO mice. Inflammation markers were in fact elevated in livers from old KO mice, and microarray analysis revealed more consistent elevation of genes specifically expressed by B-cells and T-cells...
June 14, 2016: Oncotarget
S C Nair, P M J Welsing, I Y K Choi, J Roth, D Holzinger, J W J Bijlsma, J M van Laar, D M Gerlag, F P J G Lafeber, P P Tak
OBJECTIVES: Measurement of MRP8/14 serum levels has shown potential in predicting clinical response to different biological agents in rheumatoid arthritis (RA). We aimed to develop a treatment algorithm based on a prediction score using MRP8/14 measurements and clinical parameters predictive for response to different biological agents. METHODS: Baseline serum levels of MRP8/14 were measured in 170 patients starting treatment with infliximab, adalimumab or rituximab...
2016: PloS One
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