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https://www.readbyqxmd.com/read/28214412/histiocytoses-emerging-neoplasia-behind-inflammation
#1
REVIEW
Julien Haroche, Fleur Cohen-Aubart, Barret J Rollins, Jean Donadieu, Frédéric Charlotte, Ahmed Idbaih, Augusto Vaglio, Omar Abdel-Wahab, Jean-François Emile, Zahir Amoura
Histiocytoses are disorders characterised by inflammation and the accumulation of cells derived from the monocyte and macrophage lineages, which results in tissue damage. Although they are often considered rare disorders with protean clinical manifestations, considerable advances in the understanding of their genetics have led to increased clinical recognition of these conditions, and fuelled further insights into their pathogenesis. In this Review, we describe insights into the cells of origin, molecular pathology, clinical features, and treatment strategies for some of the most common histiocytic disorders, including Langerhans cell histiocytosis, Erdheim-Chester disease, and Rosai-Dorfman disease...
February 2017: Lancet Oncology
https://www.readbyqxmd.com/read/28213502/monocytes-are-the-predominate-cell-type-associated-with-listeria-monocytogenes-in-the-gut-but-they-do-not-serve-as-an-intracellular-growth-niche
#2
Grant S Jones, Sarah E F D'Orazio
After foodborne transmission of the facultative intracellular bacterial pathogen Listeria monocytogenes, most of the bacterial burden in the gut is extracellular. However, we previously demonstrated that intracellular replication in an as yet unidentified cell type was essential for dissemination and systemic spread of L. monocytogenes In this article, we show that the vast majority of cell-associated L. monocytogenes in the gut were adhered to Ly6C(hi) monocytes, a cell type that inefficiently internalized L...
February 17, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28213094/aspirin-triggered-resolvin-d1-modified-materials-promote-the-accumulation-of-pro-regenerative-immune-cell-subsets-and-enhance-vascular-remodeling
#3
Mary Caitlin P Sok, Maxianne C Tria, Claire E Olingy, Cheryl L San Emeterio, Edward A Botchwey
: Many goals in tissue engineering rely on modulating cellular localization and polarization of cell signaling, including the inhibition of inflammatory infiltrate, facilitation of inflammatory cell egress, and clearance of apoptotic cells. Omega-3 polyunsaturated fatty acid-derived resolvins are gaining increasing recognition for their essential roles in inhibition of neutrophil invasion into inflamed tissue and promotion of macrophage phagocytosis of cellular debris as well as their egress to the lymphatics...
February 14, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28212753/the-trail-induced-cancer-secretome-promotes-a-tumor-supportive-immune-microenvironment-via-ccr2
#4
Torsten Hartwig, Antonella Montinaro, Silvia von Karstedt, Alexandra Sevko, Silvia Surinova, Ankur Chakravarthy, Lucia Taraborrelli, Peter Draber, Elodie Lafont, Frederick Arce Vargas, Mona A El-Bahrawy, Sergio A Quezada, Henning Walczak
Tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL) is known for specifically killing cancer cells, whereas in resistant cancers, TRAIL/TRAIL-R can promote metastasis via Rac1 and PI3K. It remains unknown, however, whether and to what extent TRAIL/TRAIL-R signaling in cancer cells can affect the immune microenvironment. Here we show that TRAIL-triggered cytokine secretion from TRAIL-resistant cancer cells is FADD dependent and identify the TRAIL-induced secretome to drive monocyte polarization to myeloid-derived suppressor cells (MDSCs) and M2-like macrophages...
February 16, 2017: Molecular Cell
https://www.readbyqxmd.com/read/28212553/the-clinical-use-of-the-platelet-lymphocyte-ratio-and-lymphocyte-monocyte-ratio-as-prognostic-predictors-in-colorectal-cancer-a-meta-analysis
#5
Ya-Huan Guo, Hai-Feng Sun, Yan-Bing Zhang, Zi-Jun Liao, Lei Zhao, Jie Cui, Tao Wu, Jian-Rong Lu, Ke-Jun Nan, Shu-Hong Wang
BACKGROUND: Conflicting evidence exists regarding the effects of platelet/lymphocyte ratio (PLR) and lymphocyte/monocyte ratio(LMR) on the prognosis of colorectal cancer (CRC) patients. This study aimed to evaluate the roles of the PLR and LMR in predicting the prognosis of CRC patients via meta-analysis. METHODS: Eligible studies were retrieved from the PubMed, Embase,andChina National Knowledge Infrastructure (CNKI) databases, supplemented by a manual search of references from retrieved articles...
February 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28212523/redox-regulation-in-metabolic-programming-and-inflammation
#6
REVIEW
Helen R Griffiths, Dan Gao, Chathyan Pararasa
Energy metabolism and redox state are intrinsically linked. In order to mount an adequate immune response, cells must have an adequate and rapidly available energy resource to migrate to the inflammatory site, to generate reactive oxygen species using NADPH as a cofactor and to engulf bacteria or damaged tissue. The first responder cells of the innate immune response, neutrophils, are largely dependent on glycolysis. Neutrophils are relatively short-lived, dying via apoptosis in the process of bacterial killing through production of hypochlorous acid and release of extracellular NETs...
February 12, 2017: Redox Biology
https://www.readbyqxmd.com/read/28211870/non-apoptotic-functions-of-caspases-in-myeloid-cell-differentiation
#7
REVIEW
Stéphanie Solier, Michaela Fontenay, William Vainchenker, Nathalie Droin, Eric Solary
Subtle caspase activation is associated with the differentiation of several myeloid lineages. A tightly orchestrated dance between caspase-3 activation and the chaperone HSP70 that migrates to the nucleus to protect the master regulator GATA-1 from cleavage transiently occurs in basophilic erythroblasts and may prepare nucleus and organelle expel that occurs at the terminal phase of erythroid differentiation. A spatially restricted activation of caspase-3 occurs in maturing megakaryocytes to promote proplatelet maturation and platelet shedding in the bloodstream...
February 17, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28211187/deletion-of-junctional-adhesion-molecule-a-from-platelets-increases-early-stage-neointima-formation-after-wire-injury-in-hyperlipidemic-mice
#8
Zhen Zhao, Tanja Vajen, Ela Karshovska, Annemiek Dickhout, Martin M Schmitt, Remco T A Megens, Philipp von Hundelshausen, Thomas A Koeppel, Tilman M Hackeng, Christian Weber, Rory R Koenen
Platelets play an important role in the pathogenesis of vascular remodelling after injury. Junctional adhesion molecule A (JAM-A) was recently described to regulate platelet activation. Specific deletion of JAM-A from platelets resulted in increased reactivity and in accelerated progression of atherosclerosis. The aim of this study was to investigate the specific contribution of platelet-derived JAM-A to neointima formation after vascular injury. Mice with or without platelet-specific (tr)JAM-A-deficiency in an apolipoprotein e (apoe(-/-) ) background underwent wire-induced injury of the common carotid artery...
February 17, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28211096/monocyte-and-lymphocyte-surface-molecules-in-severe-sepsis-and-non-septic-critically-ill-patients
#9
Joel Jämsä, Hannu Syrjälä, Virva Huotari, Eeva-Riitta Savolainen, Tero Ala-Kokko
The aim of the present study was to investigate whether expression of monocyte and lymphocyte surface molecules differs between patients with severe sepsis and non-septic patients treated in the intensive care unit (ICU). The expression of monocyte CD14, CD40, CD80 and HLA-DR, and lymphocyte CD69 were analyzed using quantitative flow cytometry on three consecutive days in 27 patients with severe sepsis and in 15 non-septic patients. Receiver operating characteristic analyses were performed and each corresponding area under the curve (AUC) was determined...
February 17, 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/28210651/analysis-of-platelet-rich-plasma-extraction-variations-in-platelet-and-blood-components-between-4-common-commercial-kits
#10
Jane Fitzpatrick, Max K Bulsara, Paul Robert McCrory, Martin D Richardson, Ming Hao Zheng
BACKGROUND: Platelet-rich plasma (PRP) has been extensively used as a treatment in tissue healing in tendinopathy, muscle injury, and osteoarthritis. However, there is variation in methods of extraction, and this produces different types of PRP. PURPOSE: To determine the composition of PRP obtained from 4 commercial separation kits, which would allow assessment of current classification systems used in cross-study comparisons. STUDY DESIGN: Controlled laboratory study...
January 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28210073/macrophages-as-key-drivers-of-cancer-progression-and-metastasis
#11
REVIEW
Sebastian R Nielsen, Michael C Schmid
Macrophages are one of the most abundant immune cells in the tumour microenvironment of solid tumours and their presence correlates with reduced survival in most cancers. Macrophages are present at all stages of tumour progression and stimulate angiogenesis, tumour cell invasion, and intravasation at the primary site. At the metastatic site, macrophages and monocytes prepare for the arrival of disseminated tumour cells and promote their extravasation and survival by inhibiting immune-mediated clearance or by directly engaging with tumour cells to activate prosurvival signalling pathways...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28209719/adaptive-nk-cells-can-persist-in-patients-with-gata2-mutation-depleted-of-stem-and-progenitor-cells
#12
Heinrich Schlums, Moonjung Jung, Hongya Han, Jakob Theorell, Venetia Bigley, Samuel C C Chiang, David S J Allan, Jan K Davidson-Moncada, Rachel E Dickinson, Tim D Holmes, Amy P Hsu, Danielle Townsley, Thomas Winkler, Weixin Wang, Pål Aukrust, Ingvild Nordøy, Katherine R Calvo, Steve M Holland, Matthew Collin, Cynthia E Dunbar, Yenan T Bryceson
Heterozygous GATA2 mutation is associated with immunodeficiency, lymphedema, and myelodysplastic syndrome. Disease presentation is variable, often coinciding with loss of circulating dendritic cells, monocytes, B cells, and NK cells. Nonetheless, in a proportion of patients carrying GATA2 mutation, NK cells persist. We found that peripheral blood NK cells in symptomatic patients uniformly lacked expression of the transcription factor PLZF, as well as expression of intracellular signaling proteins FcϵRγ, SYK, and EAT-2 in a variegated manner...
February 16, 2017: Blood
https://www.readbyqxmd.com/read/28209562/vinexin-%C3%AE-ablation-inhibits-atherosclerosis-in-apolipoprotein-e-deficient-mice-by-inactivating-the-akt-nuclear-factor-%C3%AE%C2%BAb-inflammatory-axis
#13
Hongjing Guan, Wen-Lin Cheng, Junhong Guo, Meng-Lin Chao, Yan Zhang, Jun Gong, Xue-Yong Zhu, Zhi-Gang She, Zan Huang, Hongliang Li
BACKGROUND: Vinexin β is a novel adaptor protein that regulates cellular adhesion, cytoskeletal reorganization, signal transduction, and transcription; however, the exact role that vinexin β plays in atherosclerosis remains unknown. METHODS AND RESULTS: Immunoblot analysis showed that vinexin β expression is upregulated in the atherosclerotic lesions of both patients with coronary heart disease and hyperlipemic apolipoprotein E-deficient mice and is primarily localized in macrophages indicated by immunofluorescence staining...
February 16, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28208835/increased-serum-cd14-level-is-associated-with-depletion-of-tnf-%C3%AE-in-monocytes-in-migraine-patients-during-interictal-period
#14
Slawomir Michalak, Alicja Kalinowska-Lyszczarz, Danuta Wegrzyn, Adam Niezgoda, Jacek Losy, Krystyna Osztynowicz, Wojciech Kozubski
The aim of the present study was to investigate the levels of circulating CD14 in relation to the expression of tumor necrosis factor alpha (TNF-α) in monocytes, and serum levels of TNF-α and macrophage inflammatory protein-1 (MIP-1) in migraine patients. Numerous studies revealed controversial changes in the components of the immune system during attacks and the interictal period in migraine patients. Our study included 40 migraineurs and 39 controls. The levels of TNF-α, MIP-1 and CD14 were measured in peripheral monocytes and in sera with the Enzyme-Linked Immunosorbent Assay (ELISA) method, and the monocyte expression of TNF-α was also analysed by immunostaining...
February 13, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28208647/soy-leaf-extract-exerts-atheroprotective-effects-via-modulation-of-kr%C3%A3-ppel-like-factor-2-and-adhesion-molecules
#15
Jong-Min Han, Hua Li, Moon-Hee Cho, Seung-Hwa Baek, Chul-Ho Lee, Ho-Yong Park, Tae-Sook Jeong
Soy-leaf extracts exert their cardioprotective effects by inducing endothelium-dependent vasodilation in the arteries, and they favorably modulate the serum lipid profile. In this study, we investigated the atheroprotective effects of an ethanol extract of soy leaf (ESL) in human umbilical vein endothelial cells (HUVECs) and high-cholesterol diet (HCD)-fed low-density lipoprotein receptor deficient (LDLR-/-) mice. ESL induced the expression of Krüppel-like factor 2 (KLF2), an endothelial transcription factor, and endothelial nitric oxide synthase (eNOS), and suppressed the expression of vascular cell adhesion molecule-1 (VCAM-1) and intercellular adhesion molecule-1 (ICAM-1) through moderate inflammatory signal activation, not only in tumor necrosis factor-α (TNF-α)-stimulated HUVECs but also in 7-ketocholesterol (7-KC)-stimulated HUVECs...
February 10, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28208160/quantitative-and-qualitative-profiles-of-circulating-monocytes-may-help-identifying-tuberculosis-infection-and-disease-stages
#16
Marco Pio La Manna, Valentina Orlando, Francesco Dieli, Paola Di Carlo, Antonio Cascio, Gilda Cuzzi, Fabrizio Palmieri, Delia Goletti, Nadia Caccamo
Tuberculosis (TB) is one of the most important cause of morbidity and death among infectious diseases, and continuous efforts are needed to improve diagnostic tools and therapy. Previous published studies showed that the absolute cells number of monocytes or lymphocytes in peripheral blood or yet the ratio of monocytes to lymphocytes displayed the ability to predict the risk of active TB. In the present study we evaluated the ratio of monocytes to lymphocytes variation and we also analyzed the ex-vivo expression of CD64 on monocytes as tools to identify biomarkers for discriminating TB stages...
2017: PloS One
https://www.readbyqxmd.com/read/28207965/is-colchicine-more-effective-to-prevent-pfapa-episodes-in-mefv-variants
#17
Muhammed Gunes, Sukru Cekic, Sara Sebnem Kilic
BACKGROUND: Periodic fever, aphthous stomatitis, pharyngitis and cervical adenitis (PFAPA) syndrome is the most frequent repetitive fever syndrome in childhood. It is characterized with fever episodes lasting for about three to six days, once every three to eight weeks. METHODS: Clinical and laboratory data of patients with PFAPA syndrome between January 2010 and December 2014 followed up at a tertiary pediatric care hospital were reviewed. RESULTS: Four-hundred children (256 male, 144 female), the mean age at diagnosis was 4...
February 16, 2017: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/28207887/platelet-monocyte-derived-and-tissue-factor-carrying-circulating-microparticles-are-related-to-acute-myocardial-infarction-severity
#18
Gemma Chiva-Blanch, Kristian Laake, Peder Myhre, Vibeke Bratseth, Harald Arnesen, Svein Solheim, Lina Badimon, Ingebjørg Seljeflot
OBJECTIVE: Circulating microparticles (cMPs) are phospholipid-rich vesicles released from cells when activated or injured, and contribute to the formation of intracoronary thrombi. Tissue factor (TF, CD142) is the main trigger of fibrin formation and TF-carrying cMPs are considered one of the most procoagulant cMPs. Similar types of atherosclerotic lesions may lead to different types of AMI, although the mechanisms behind are unresolved. Therefore, we aimed to investigate the phenotype of cMPs found in plasma of ACS patients and its relation to AMI severity and thrombotic burden...
2017: PloS One
https://www.readbyqxmd.com/read/28204966/inhibition-of-the-renin-angiotensin-system-post-myocardial-infarction-prevents-inflammation-associated-acute-cardiac-rupture
#19
Xiao-Ming Gao, Alan Tsai, Annas Al-Sharea, Yidan Su, Shirley Moore, Li-Ping Han, Helen Kiriazis, Anthony M Dart, Andrew J Murphy, Xiao-Jun Du
PURPOSE: Inhibition of the renin-angiotensin system (RAS) is beneficial in patient management after myocardial infarction (MI). However, whether RAS inhibition also provides cardiac protection in the acute phase of MI is unclear. METHODS: Male 129sv mice underwent coronary artery occlusion to induce MI, followed by treatment with losartan (L, 20 and 60 mg/kg), perindopril (P, 2 and 6 mg/kg), amlodipine (20 mg/kg as a BP-lowering agent) or vehicle as control. Drug effects on hemodynamics were examined...
February 15, 2017: Cardiovascular Drugs and Therapy
https://www.readbyqxmd.com/read/28204537/mitochondrial-complex-ii-regulates-a-distinct-oxygen-sensing-mechanism-in-monocytes
#20
Shraddha Sharma, Jianming Wang, Eduardo Cortes Gomez, Robert T Taggart, Bora E Baysal
No abstract text is available yet for this article.
February 13, 2017: Human Molecular Genetics
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