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https://www.readbyqxmd.com/read/28077237/interplay-of-extracellular-matrix-and-leukocytes-in-lung-inflammation
#1
REVIEW
Thomas N Wight, Charles W Frevert, Jason S Debley, Stephen R Reeves, William C Parks, Steven F Ziegler
During inflammation, leukocytes influx into lung compartments and interact with extracellular matrix (ECM). Two ECM components, versican and hyaluronan, increase in a range of lung diseases. The interaction of leukocytes with these ECM components controls leukocyte retention and accumulation, proliferation, migration, differentiation, and activation as part of the inflammatory phase of lung disease. In addition, bronchial epithelial cells from asthmatic children co-cultured with human lung fibroblasts generate an ECM that is adherent for monocytes/macrophages...
December 23, 2016: Cellular Immunology
https://www.readbyqxmd.com/read/28074537/neuroblastoma-causes-alterations-of-the-intestinal-microbiome-gut-hormones-inflammatory-cytokines-and-bile-acid-composition
#2
Christoph Castellani, Georg Singer, Margarita Kaiser, Thomas Kaiser, Jianfeng Huang, Daniela Sperl, Karl Kashofer, Guenter Fauler, Barbara Guertl-Lackner, Gerald Höfler, Holger Till
OBJECTIVE: To assess the effect of neuroblastoma (NB) on the intestinal microbiome, metabolism, and inflammatory parameters in a murine model. MATERIALS AND METHODS: Athymic Hsd:Fox1nu mice received subperitoneal implantation of human NB cells (MHH-NB11) (tumor group, TG) or culture medium (sham group). Following 10 weeks of tumor growth, all animals were sacrificed to collect total white adipose tissue (WAT). Luminex assays were performed for gut hormone and inflammation marker analysis...
January 11, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28071973/collagen-cross-linking-biophysical-biochemical-and-biological-response-analysis
#3
L Delgado, Kieran Fuller, Dimitrios I Zeugolis
Extracted forms of collagen are subjected to chemical cross-linking to enhance their stability. However, traditional cross-linking approaches are associated with toxicity and inflammation. This work investigates the stabilisation capacity, cytotoxicity and inflammatory response of collagen scaffolds cross-linked with glutaraldehyde, carbodiimide, 4-arm polyethylene glycol succinimidyl glutarate, genipin and oleuropein. Although all cross-linking methods reduced free amine groups, variable data were obtained with respect to denaturation temperature, resistance to collagenase digestion and mechanical properties...
January 10, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28067799/excavatolide-b-attenuates-rheumatoid-arthritis-through-the-inhibition-of-osteoclastogenesis
#4
Yen-You Lin, Yen-Hsuan Jean, Hsin-Pai Lee, Sung-Chun Lin, Chieh-Yu Pan, Wu-Fu Chen, Shu-Fen Wu, Jui-Hsin Su, Kuan-Hao Tsui, Jyh-Horng Sheu, Ping-Jyun Sung, Zhi-Hong Wen
Osteoclasts are multinucleated giant cells of macrophage/monocyte lineage, and cell differentiation with the upregulation of osteoclast-related proteins is believed to play a major role in the destruction of the joints in the course of rheumatoid arthritis (RA). Pro-inflammatory cytokines, such as interleukin-17A (IL-17A) and macrophage colony-stimulating factor (M-CSF), can be overexpressed in RA and lead to osteoclastogenesis. In a previous study, we found that cultured-type soft coral-derived excavatolide B (Exc-B) exhibited anti-inflammatory properties...
January 6, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28065580/fatigue-favors-in-vitro-th1-and-th17-like-cell-expansion-and-reduces-corticoid-sensitivity-in-ms-patients
#5
Hélcio Alvarenga-Filho, Marisa Salles, Joana Hygino, Thais B Ferreira, Priscila M Sacramento, Clarice Monteiro, Claudia Cristina F Vasconcelos, Regina Maria Papais Alvarenga, Cleonice A M Bento
Fatigue is a common "ghost" symptom in patients with multiple sclerosis (MS), an autoimmune disease mediated by T cells that target myelin antigens of the central nervous system. As fatigue has been associated with inflammatory states, its occurrence may negatively impact MS progression. The aim of this study was to evaluate the impact of fatigue on the cytokine profile of patients with relapsing-remitting (RR) MS. For our study, blood were collected from MS patients in clinical remission phase with (n=15) and without (n=15) fatigue...
December 30, 2016: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28062012/characterization-of-the-interaction-of-african-swine-fever-virus-with-monocytes-and-derived-macrophage-subsets
#6
Giulia Franzoni, Simon P Graham, Silvia Dei Giudici, Piero Bonelli, Giovannantonio Pilo, Antonio G Anfossi, Marco Pittau, Paola S Nicolussi, Alberto Laddomada, Annalisa Oggiano
African swine fever (ASF) is a devastating disease for which there is no vaccine available. The ASF virus (ASFV) primarily infects cells of the myeloid lineage and this tropism is thought to be crucial for disease pathogenesis. A detailed in vitro characterization of the interactions of a virulent Sardinian isolate (22653/14) and a tissue culture adapted avirulent strain (BA71V) of ASFV with porcine monocytes, un-activated (moMΦ), classically (moM1) and alternatively (moM2) activated monocyte-derived macrophages was conducted in an attempt to better understand this relationship...
January 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28060571/m-ficolin-is-present-in-aspergillus-fumigatus-infected-lung-and-modulates-epithelial-cell-immune-responses-elicited-by-fungal-cell-wall-polysaccharides
#7
Kasper Jensen, Kit P Lund, Kimmie B Christensen, Anne T Holm, Lalit Kumar Dubey, Jesper B Moeller, Christine S Jepsen, Anders Schlosser, László Galgóczy, Steffen Thiel, Uffe Holmskov, Grith L Sorensen
Aspergillus fumigatus (A. fumigatus) is an opportunistic fungal pathogen that typically infects the lungs of immunocompromised patients. Ficolins are secreted pattern recognition molecules of the innate immune system. In the present study, we investigated the unknown role of human M-ficolin in the recognition of, and response to fungal cell wall polysaccharides. M-ficolin was localized to infiltrating granulocytes and monocytes found in the A. fumigatus infected lung. Recombinant M-ficolin (rM-ficolin) bound specifically to A...
January 6, 2017: Virulence
https://www.readbyqxmd.com/read/28057743/il21r-expressing-cd14-cd16-monocytes-expand-in-multiple-myeloma-patients-leading-to-increased-osteoclasts
#8
Marina Bolzoni, Domenica Ronchetti, Paola Storti, Gaetano Donofrio, Valentina Marchica, Federica Costa, Luca Agnelli, Denise Toscani, Rosanna Vescovini, Katia Todoerti, Sabrina Bonomini, Gabriella Sammarelli, Andrea Vecchi, Daniela Guasco, Fabrizio Accardi, Benedetta Dalla Palma, Barbara Gamberi, Carlo Ferrari, Antonino Neri, Franco Aversa, Nicola Giuliani
Bone marrow monocytes are primarily committed to osteoclast formation. It is, however, unknown whether potential primary alterations are specifically present in bone marrow monocytes of multiple myeloma patients, smoldering myeloma or monoclonal gammopathy of uncertain significance. Herein, we analyzed the immunophenotypic and transcriptional profiles of bone marrow CD14+ monocytes in a cohort of patients with different types of monoclonal gammopathies to identify alterations involved in myeloma-enhanced osteoclastogenesis...
January 5, 2017: Haematologica
https://www.readbyqxmd.com/read/28055017/rny-yrna-derived-small-rnas-regulate-cell-death-and-inflammation-in-monocytes-macrophages
#9
Zoheir Hizir, Silvia Bottini, Valerie Grandjean, Michele Trabucchi, Emanuela Repetto
The recent discovery of new classes of small RNAs has opened unknown territories to explore new regulations of physiopathological events. We have recently demonstrated that RNY (or Y RNA)-derived small RNAs (referred to as s-RNYs) are an independent class of clinical biomarkers to detect coronary artery lesions and are associated with atherosclerosis burden. Here, we have studied the role of s-RNYs in human and mouse monocytes/macrophages and have shown that in lipid-laden monocytes/macrophages s-RNY expression is timely correlated to the activation of both NF-κB and caspase 3-dependent cell death pathways...
January 5, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28054559/the-rhoa-rock-pathway-ameliorates-adhesion-and-inflammatory-infiltration-induced-by-ages-in-glomerular-endothelial-cells
#10
Jialing Rao, Zengchun Ye, Hua Tang, Cheng Wang, Hui Peng, Weiyan Lai, Yin Li, Wanbing Huang, Tanqi Lou
A recent study demonstrated that advanced glycation end products (AGEs) play a role in monocyte infiltration in mesangial areas in diabetic nephropathy. The Ras homolog gene family, member A Rho kinase (RhoA/ROCK) pathway plays a role in regulating cell migration. We hypothesized that the RhoA/ROCK pathway affects adhesion and inflammation in endothelial cells induced by AGEs. Rat glomerular endothelial cells (rGECs) were cultured with AGEs (80 μg/ml) in vitro. The ROCK inhibitor Y27632 (10 nmol/l) and ROCK1-siRNA were used to inhibit ROCK...
January 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28045905/human-leukocytes-kill-brugia-malayi-microfilariae-independently-of-dna-based-extracellular-trap-release
#11
Ciaran J McCoy, Barbara J Reaves, Steeve Giguère, Ruby Coates, Balázs Rada, Adrian J Wolstenholme
BACKGROUND: Wuchereria bancrofti, Brugia malayi and Brugia timori infect over 100 million people worldwide and are the causative agents of lymphatic filariasis. Some parasite carriers are amicrofilaremic whilst others facilitate mosquito-based disease transmission through blood-circulating microfilariae (Mf). Recent findings, obtained largely from animal model systems, suggest that polymorphonuclear leukocytes (PMNs) contribute to parasitic nematode-directed type 2 immune responses. When exposed to certain pathogens PMNs release extracellular traps (NETs) in the form of chromatin loaded with various antimicrobial molecules and proteases...
January 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28044439/hs-afm-and-sers-analysis-of-murine-norovirus-infection-involvement-of-the-lipid-rafts
#12
Ece N Aybeke, Gaël Belliot, Stéphanie Lemaire-Ewing, Marie Estienney, Yvon Lacroute, Pierre Pothier, Eric Bourillot, Eric Lesniewska
Studies on human norovirus are severely hampered by the absence of a cell culture system until the discovery of murine norovirus (MNV). The cell membrane domains called lipid rafts have been defined as a port of entry for viruses. This study is conducted to investigate murine norovirus binding on the mouse leukemic monocyte macrophage cell line. Lipid raft related structures are extracted from cells by detergent treatment resulting detergent-resistant membrane (DRMs) domains. The real-time polymerase chain reaction technique is performed to detect the viral genome, thereby the MNV binding on the DRMs...
January 2017: Small
https://www.readbyqxmd.com/read/28044051/maturation-phenotype-of-peripheral-blood-monocyte-macrophage-after-stimulation-with-lipopolysaccharides-in-irritable-bowel-syndrome
#13
Oscar A Rodríguez-Fandiño, Joselín Hernández-Ruiz, Yolanda López-Vidal, Luis Charúa-Guindic, Galileo Escobedo, Max J Schmulson
Background/Aims: Abnormal immune regulation and increased intestinal permeability augmenting the passage of bacterial molecules that can activate immune cells, such as monocytes/macrophages, have been reported in irritable bowel syndrome (IBS). To compare the maturation phenotype of monocytes/macrophages (CD14+) from IBS patients and controls in the presence or absence of E. coli lipopolysaccharides (LPS), in vitro. Methods: Mononuclear cells were isolated from peripheral blood of 20 Rome II-IBS patients and 19 controls and cultured with or without LPS for 72 hours...
January 2, 2017: Journal of Neurogastroenterology and Motility
https://www.readbyqxmd.com/read/28043542/the-analysis-of-exosomal-micro-rnas-in-peripheral-blood-mononuclear-cell-derived-macrophages-after-infection-with-bacillus-calmette-gu%C3%A3-rin-by-rna-sequencing
#14
Esmaeil Mortaz, Shamila D Alipoor, Payam Tabarsi, Ian M Adcock, Johan Garssen, Ali Akbar Velayati
OBJECTIVE/BACKGROUND: Tuberculosis (TB) is a major global threat to human health, especially in low-income countries. The diagnosis of TB is challenging because of the limitations of specificity and sensitivity with the current diagnostics. Novel, selective biomarkers for TB would be of great practical value. Exosomes are bioactive vesicles with 30-100nm in diameter, which are secreted from almost all cell types and are found in virtually every human body fluid. Exosomes transport micro-RNAs (miRNAs), which are post-transcriptional regulators of gene expression, around the body and allow miRNAs to modulate biological pathways in target cells...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28035653/non-classical-monocytes-levels-increased-by-subcutaneous-fat-secretome-are-associated-with-less-rehospitalization-after-heart-failure-admission
#15
Sonia Eiras, Alfonso Varela-Román, Mariléia Cháves Andrade, Ana Castro, Rocío González-Ferreiro, Juan E Viñuela, Ángel Fernández-Trasancos, Marcos C Carreira, Ezequiel Álvarez, Felipe F Casanueva, José R González-Juanatey
Differential monocyte subsets are increased in obesity and heart failure (HF). We studied their role as predictors of rehospitalization for HF and their regulation by adipose tissue. Monocyte subsets and body fat composition were determined from 136 patients at the discharge after HF admission. Regulation of monocytes by SAT secretomes from obese/non-obese patients with HF was studied in a cell culture method. Proteomic analysis of secretome SAT was performed by LC-MALDI TOF/TOF. High CD14(-)CD16(+) monocyte levels indicated less rehospitalization for HF (p = 0...
December 29, 2016: Journal of Cardiovascular Translational Research
https://www.readbyqxmd.com/read/28031160/myelo-erythroid-commitment-after-burn-injury-is-under-beta-adrenergic-control-via-mafb-regulation
#16
Shirin Hasan, Nicholas B Johnson, Michael J Mosier, Ravi Shankar, Peggie Conrad, Andrea Szilagyi, Richard L Gamelli, Kuzhali Muthumalaiappan
Severely injured burn patients receive multiple blood transfusions for anemia of critical illness despite the adverse consequences. One limiting factor to consider alternate treatment strategies is the lack of a reliable test platform to study molecular mechanisms of impaired erythropoiesis. This study illustrates how conditions resulting in high catecholamine microenvironment such as burns can instigate myelo-erythroid reprioritization influenced by beta-adrenergic stimulation leading to anemia. In mouse model of scald burn injury we observed, along with a 3-fold increase in bone marrow LSKs (lin(neg) Sca1(+)cKit(+)), the myeloid shift is accompanied with a significant reduction in megakaryocyte erythrocyte progenitors (MEPs)...
December 28, 2016: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/28030558/loss-of-trpv4-function-suppresses-inflammatory-fibrosis-induced-by-alkali-burning-mouse-corneas
#17
Yuka Okada, Kumi Shirai, Masayasu Miyajima, Peter S Reinach, Osamu Yamanaka, Takayoshi Sumioka, Masahide Kokado, Katsuo Tomoyose, Shizuya Saika
In humans suffering from pulmonary disease and a mouse model, transient receptor potential vanilloid 4 (TRPV4) channel activation contributes to fibrosis. As a corneal alkali burn induces the same response, we determined if such an effect is also attributable to TRPV4 activation in mice. Accordingly, we determined if the alkali burn wound healing responses in wild-type (WT) mice are different than those in their TRPV4-null (KO) counterpart. Stromal opacification due to fibrosis in KO (n = 128) mice was markedly reduced after 20 days relative to that in WT (n = 157) mice...
2016: PloS One
https://www.readbyqxmd.com/read/28027709/conditioned-medium-from-periodontal-ligament-stem-cells-enhances-periodontal-regeneration
#18
Mizuki Nagata, Kengo Iwasaki, Keiko Akazawa, Motohiro Komaki, Naoki Yokoyama, Yuichi Izumi, Ikuo Morita
Periodontal disease is one of the most common infectious diseases in adults and is characterized by the destruction of tooth-supporting tissues. Mesenchymal stem cells (MSCs) comprise the mesoderm-originating stem cell population, which has been studied and used for cell therapy. However, because of the lower rate of cell survival after MSC transplantation in various disease models, paracrine factions of MSCs have been receiving increased attentions as a regenerative mechanism. The aim of this study was to investigate the regenerative potential of transplanted of conditioned medium (CM) obtained from cultured periodontal ligament stem cells (PDLSCs), the adult stem cell population in tooth-supporting tissues, using a rat periodontal defect model...
December 27, 2016: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28024939/rage-deficiency-alleviates-aortic-valve-calcification-in-apoe-mice-via-the-inhibition-of-endoplasmic-reticulum-stress
#19
Bo Wang, Zhejun Cai, Baoqing Liu, Zongtao Liu, Xianming Zhou, Nianguo Dong, Fei Li
Receptor for advanced glycation end products (RAGE) and endoplasmic reticulum (ER) stress have been shown to be involved in calcific aortic valve disease (CAVD). However, the association between RAGE and ER stress remains unknown in the pathogenesis of CAVD. The current study aims to test the hypothesis that RAGE deficiency alleviates aortic valve calcification via the inhibition of ER stress. Up-regulation of RAGE and ER stress markers in calcified human aortic valves were confirmed by immunoblotting. Aortic valve calcification was evaluated in atherosclerotic prone ApoE(-/-) mice or in mice with dual deficiencies of ApoE and RAGE (ApoE(-/-)RAGE(-/-)) fed with high cholesterol diet for 24weeks...
December 24, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28018345/increased-toll-like-receptors-activity-and-tlr-ligands-in-patients-with-autoimmune-thyroid-diseases
#20
Shiqiao Peng, Chenyan Li, Xinyi Wang, Xin Liu, Cheng Han, Ting Jin, Shanshan Liu, Xiaowen Zhang, Hanyi Zhang, Xue He, Xiaochen Xie, Xiaohui Yu, Chuyuan Wang, Ling Shan, Chenling Fan, Zhongyan Shan, Weiping Teng
OBJECTIVE: Autoimmune thyroid disease (AITD) is an organ-specific disorder due to the interplay between environmental and genetic factors. Toll-like receptors (TLRs) are pattern recognition receptors expressed abundantly on monocytes. There is a paucity of data on TLR expression in AITD. The aim of this study was to examine TLR expression, activation, ligands, and downstream signaling adaptors in peripheral blood mononuclear cells (PBMCs) extracted from untreated AITD patients and healthy controls...
2016: Frontiers in Immunology
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