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Monocyte cell culture

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https://www.readbyqxmd.com/read/28634479/whole-blood-profiling-of-bacillus-calmette-gu%C3%A3-rin-induced-trained-innate-immunity-in-infants-identifies-epidermal-growth-factor-il-6-platelet-derived-growth-factor-ab-bb-and-natural-killer-cell-activation
#1
Steven G Smith, Johanneke Kleinnijenhuis, Mihai G Netea, Hazel M Dockrell
Vaccination of infants with bacillus Calmette-Guérin (BCG) activates both the innate and adaptive arms of the immune response. The antimycobacterial effects of these responses most likely account for the ability of BCG to protect against childhood forms of tuberculosis (TB). There is also evidence for a heterologous protective effect of BCG vaccination against TB-unrelated mortality in low birth weight infants. A possible mechanism of action of this effect, the induction of trained innate immunity, has been demonstrated when cells from BCG-vaccinated adults are restimulated in vitro with non-related microbial stimuli...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28631213/the-constitutive-protease-release-by-primary-human-acute-myeloid-leukemia-cells
#2
Maria Honnemyr, Øystein Bruserud, Annette K Brenner
INTRODUCTION: Acute myeloid leukemia (AML) cells show constitutive release of matrix metalloproteases and their inhibitors. We now investigated this constitutive release of protease/protease regulators associated with carcinogenesis (ADAM12, uPA, cystatin B), angiogenesis (serpin E1, uPA, CD147), cancer cell migration (uPA, cystatin C), coagulation (ADAM TS13, serpin C1), inflammation (fetuin A, caspase 1, cystatin C), monocytic differentiation (CFD) or regulation of hematopoiesis (neutrophil elastase)...
June 19, 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/28619539/systemic-immunological-changes-in-patients-with-distinct-clinical-outcomes-during-mycobacterium-tuberculosis-infection
#3
Tatiane Figueiredo Morais-Papini, Jordana Grazziela Alves Coelho-Dos-Reis, Ana Paula Barbosa Wendling, Lis Ribeiro do Vale Antonelli, Pryscilla Fanini Wowk, Vânia Luiza Deperon Bonato, Valéria Maria Augusto, Silvana Elói-Santos, Olindo Assis Martins-Filho, Cláudia Martins Carneiro, Andréa Teixeira-Carvalho
BACKGROUND: The lung lesions in an individual infected with tuberculosis (TB) are surprisingly variable and independent of each other. However, there is no circulating biomarker yet able to segregate patients according to the extent of lung lesions. MATERIALS AND METHODS: In this study, the phenotypic and functional profile of leukocytes of patients with active pulmonary tuberculosis (TB) and controls (CO) were fully scrutinized by immunophenotyping assays and in vitro short-term whole blood culture...
May 26, 2017: Immunobiology
https://www.readbyqxmd.com/read/28619088/chemokine-signals-are-crucial-for-enhanced-homing-and-differentiation-of-circulating-osteoclast-progenitor-cells
#4
Alan Sucur, Zrinka Jajic, Marinko Artukovic, Marina Ikic Matijasevic, Branimir Anic, Darja Flegar, Antonio Markotic, Tomislav Kelava, Sanja Ivcevic, Natasa Kovacic, Vedran Katavic, Danka Grcevic
BACKGROUND: The peripheral blood (PB) monocyte pool contains osteoclast progenitors (OCPs), which contribute to osteoresorption in inflammatory arthritides and are influenced by the cytokine and chemokine milieu. We aimed to define the importance of chemokine signals for migration and activation of OCPs in rheumatoid arthritis (RA) and psoriatic arthritis (PsA). METHODS: PB and, when applicable, synovial fluid (SF) samples were collected from 129 patients with RA, 53 patients with PsA, and 110 control patients in parallel to clinical parameters of disease activity, autoantibody levels, and applied therapy...
June 15, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28618148/mechanisms-underlying-induction-of-allergic-sensitization-by-pru-p-3
#5
Leticia Tordesillas, Nuria Cubells-Baeza, Cristina Gómez-Casado, Cecilia Berin, Vanesa Esteban, Weronika Barcik, Liam O'Mahony, Carmen Ramirez, Luis F Pacios, María Garrido-Arandia, Araceli Díaz-Perales
BACKGROUND: Recently, the nature of the lipid-ligand of Pru p 3, one of the most common plant food allergens in Southern Europe, has been identified as a derivative of the alkaloid camptothecin bound to phytosphingosine. However, the origin of its immunological activity is still unknown. OBJECTIVE: We sought to evaluate the role of the Pru p 3 lipid- ligand in the immunogenic activity of Pru p 3. METHODS: In vitro cultures of different cell types (monocyte-derived dendritic cells (moDCs), PBMCs and epithelial and iNKT-hybridoma cell lines) have been used to determine the immunological capacity of the ligand, by measuring cell proliferation, maturation markers and cytokine production...
June 15, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28613211/role-of-simvastatin-and-ror%C3%AE-activity-in-the-macrophage-apoptotic-pathway
#6
Neslihan Çoban, Çağrı Güleç, Bilge Özsait Selçuk, Nihan Erginel-Ünaltuna
OBJECTIVE: Atherosclerosis is a chronic inflammatory condition and is one of the main causes of death worldwide. Macrophages play important roles in the formation of atherosclerotic plaques. Apoptosis is progressively observed while plaques develop, although the precise mechanisms and outcomes of apoptosis in atherosclerosis development and progression are still contradictory. This study was conducted to explore the effects of simvastatin and retinoic acid receptor-related orphan receptor alpha (RORα) ligands on apoptosis in human acute monocytic leukemia (THP-1) macrophage cells...
May 2017: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/28612556/-effects-of-msp-on-the-proliferation-migration-and-invasion-of-human-non-small-cell-lung-cancer-cells
#7
Xia Liu, Shi-Hang Wei, Xue-Ni Shi, Yi-Nan Zuo, Xue-Ling He, Hai-Lin Yin
OBJECTIVES: To determine the effects of macrophage stimulating protein (Msp) on the proliferation, migration and invasion of human non-small cell lung cancer cells PC14. METHODS: The eukaryotic expression vector for st1was constructed and transfected into Msp(-)and RON(-)human non-small cell lung cancer cells PC14. The expression of st1mRNA in PC14 cells was observed by RT-PCR. The expression levels of Msp protein in PC14, PC14-st1-pEGFP-N1 and PC14-pEGFP-N1 groups as well as the expression of RON in PC14 and SKBR-3 cells were detected by Western blot...
January 2017: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/28611290/a-fragment-of-the-alarmin-prothymosin-%C3%AE-as-a-novel-biomarker-in-murine-models-of-bacteria-induced-sepsis
#8
Pinelopi Samara, Vivi Miriagou, Michael Zachariadis, Olga Mavrofrydi, Vasilis J Promponas, Skarlatos G Dedos, Panagiota Papazafiri, Hubert Kalbacher, Wolfgang Voelter, Ourania Tsitsilonis
Sepsis is a life-threatening condition that requires urgent care. Thus, the identification of specific and sensitive biomarkers for its early diagnosis and management are of clinical importance. The alarmin prothymosin alpha (proTα) and its decapeptide proTα(100-109) are immunostimulatory peptides related to cell death. In this study, we generated bacterial models of sepsis in mice using two Klebsiella pneumoniae strains (L-78 and ATCC 43816) and monitored sepsis progression using proTα(100-109) as a biomarker...
May 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/28610763/inflammatory-cell-infiltration-and-resolution-of%C3%A2-kidney-inflammation-is-orchestrated-by-the-cold-shock-protein-y-box-binding-protein-1
#9
Anja Bernhardt, Alexander Fehr, Sabine Brandt, Saskia Jerchel, Tobias M Ballhause, Lars Philipsen, Saskia Stolze, Robert Geffers, Honglei Weng, Klaus-Dieter Fischer, Berend Isermann, Monika C Brunner-Weinzierl, Arvind Batra, Britta Siegmund, Cheng Zhu, Jonathan A Lindquist, Peter R Mertens
Tubular cells recruit monocytic cells in inflammatory tubulointerstitial kidney diseases. The cell-cell communication that establishes pro- or anti-inflammatory activities is mainly influenced by cytokines, reactive oxygen species, nitric oxide, and phagocytosis. Key proteins orchestrating these processes such as cold-shock proteins linked with chemoattraction and cell maturation have been identified. The prototypic member of the cold-shock protein family, Y-box binding protein (YB)-1, governs specific phenotypic alterations in monocytic cells and was explored in the present study...
June 11, 2017: Kidney International
https://www.readbyqxmd.com/read/28609713/nicorandil-modulated-macrophages-activation-and-polarization-via-nf-%C3%AE%C2%BAb-signaling-pathway
#10
Fengyun Zhang, Yongli Xuan, Jinjin Cui, Xinxin Liu, Zhiying Shao, Bo Yu
Nicorandil, a drug with both nitrate-like and ATP-sensitive potassium (KATP) channel-activating properties, has been well demonstrated in various aspects of myocardial infarction (MI), especially in inhibiting cell apoptosis and increasing coronary flow. However, the role of nicorandil in regulating inflammation and angiogenesis following myocardial infarction is still unrevealed. In the present study, we explored the effect of nicorandil on macrophage phenotype transition and inflammation regulation and the potential underlying mechanisms...
June 10, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28605813/overexpression-of-angiotensin-converting-enzyme-2-ameliorates-amyloid-%C3%AE-induced-inflammatory-response-in-human-primary-retinal-pigment-epithelium
#11
Xinyu Fu, Ru Lin, Yiguo Qiu, Peng Yu, Bo Lei
Purpose: Amyloid-β (Aβ) is a major constituent of drusen, which is a hallmark of early AMD. The purpose of this study was to investigate whether enhancement of ACE2, an important component of the protective angiotensin-converting enzyme 2 (ACE2)/Ang-(1-7)/Mas axis of the renin angiotensin system (RAS), ameliorates Aβ-induced inflammatory response in human RPE cells. Methods: Annexin-V FITC/propidium iodide assay for detecting apoptosis rate was used to determine the optimum concentration and incubation time of Aβ1-42...
June 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28602894/remnant-epitope-autoimmunity-in-human-abdominal-aortic-aneurysm-a-pilot-study-with-elastin-peptides
#12
Jelle Verhoeven, Alix Lambrecht, Peter Verbrugghe, Paul Herijgers, Inge Fourneau
INTRODUCTION: Abdominal aortic aneurysm (AAA) is a prevalent disease affecting around 5% of the population over 65 years of age. The exact etiology and physiopathology of AAA still raises questions and elective surgery is currently the only treatment option for this often progressive disease. In this study we hypothesized and tested a pathophysiological model that depicts AAA as an inflammation triggered autoimmune disease with remnant vessel wall peptide fragments as the antigen. MATERIAL AND METHODS: A pilot study with male AAA patients (n=14) and male controls (n=8) was conducted...
June 7, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28601925/enhanced-stimulation-of-human-tumor-specific-t-cells-by-dendritic-cells-matured-in-the-presence-of-interferon-%C3%AE-and-multiple-toll-like-receptor-agonists
#13
Tanja Lövgren, Dhifaf Sarhan, Iva Truxová, Bhavesh Choudhary, Roeltje Maas, Jeroen Melief, Maria Nyström, Ulrika Edbäck, Renee Vermeij, Gina Scurti, Michael Nishimura, Giuseppe Masucci, Alex Karlsson-Parra, Andreas Lundqvist, Lars Adamson, Rolf Kiessling
Dendritic cell (DC) vaccines have been demonstrated to elicit immunological responses in numerous cancer immunotherapy trials. However, long-lasting clinical effects are infrequent. We therefore sought to establish a protocol to generate DC with greater immunostimulatory capacity. Immature DC were generated from healthy donor monocytes by culturing in the presence of IL-4 and GM-CSF and were further differentiated into mature DC by the addition of cocktails containing different cytokines and toll-like receptor (TLR) agonists...
June 10, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/28598224/mesenchymal-stromal-cells-modulate-macrophages-in-clinically-relevant-lung-injury-models-by-extracellular-vesicle-mitochondrial-transfer
#14
Thomas J Morrison, Megan V Jackson, Erin K Cunningham, Adrien Kissenpfennig, Daniel F McAuley, Cecilia M O'Kane, Anna D Krasnodembskaya
RATIONALE: Acute Respiratory Distress Syndrome (ARDS) remains a major cause of respiratory failure in critically ill patients. Mesenchymal Stromal Cells (MSCs) are a promising candidate for a cell based therapy. However, the mechanisms of MSCs effects in ARDS are not well understood. Here we focused on the paracrine effect of MSCs on macrophage polarization and the role of extracellular vesicle (EV)-mediated mitochondrial transfer. OBJECTIVES: To determine the effects of human MSCs on macrophage function in the ARDS environment and to elucidate the mechanisms of these effects...
June 9, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28596474/lenalidomide-increases-human-dendritic-cell-maturation-in-multiple-myeloma-patients-targeting-monocyte-differentiation-and-modulating-mesenchymal-stromal-cell-inhibitory-properties
#15
Federica Costa, Rosanna Vescovini, Marina Bolzoni, Valentina Marchica, Paola Storti, Denise Toscani, Fabrizio Accardi, Laura Notarfranchi, Benedetta Dalla Palma, Cristina Manferdini, Sabrina Manni, Giannalisa Todaro, Gina Lisignoli, Francesco Piazza, Franco Aversa, Nicola Giuliani
The use of Lenalidomide (LEN), to reverse tumor-mediated immune suppression and amplify multiple myeloma-specific immunity is currently being explored. Particularly, LEN effects on dendritic cells (DCs) are still unclear. In this study, we investigated the potential effect of LEN on DC differentiation and activity. DCs were differentiated either from CD14+ cells obtained from patients with multiple myeloma or from a human monocytic cell line.LEN, at the concentration range reached in vivo, significantly increased the median intensity expression of HLA-DR, CD86 and CD209 by DCs derived from both bone marrow and peripheral myeloma monocytes and enhanced the production of Interleukin-8, C-C motif chemokine ligand (CCL) 2, CCL5 and tumor necrosis factor-α...
May 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28596294/the-metalloproteinase-adam8-promotes-leukocyte-recruitment-in-vitro-and-in-acute-lung-inflammation
#16
Daniela Dreymueller, Jessica Pruessmeyer, Julian Schumacher, Sandra Fellendorf, Franz Martin Hess, Anke Seifert, Aaron Babendreyer, Joerg Walter Bartsch, Andreas Ludwig
Alveolar leukocyte recruitment is a hallmark of acute lung inflammation and involves transmigration of leukocytes through endothelial and epithelial layers. The disintegrin and metalloproteinase (ADAM) 8 is expressed on human isolated leukocytic cells and can be further upregulated on cultured endothelial and epithelial cells by proinflammatory cytokines. By shRNA mediated knockdown we show that leukocytic ADAM8 is required on monocytic THP-1 cells for chemokine-induced chemotaxis as well as transendothelial and transepithelial migration...
June 8, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28594751/dhrs9-is-a-stable-marker-of-human-regulatory-macrophages
#17
Paloma Riquelme, Giada Amodio, Camila Macedo, Aurelie Moreau, Nataša Obermajer, Christoph Brochhausen, Norbert Ahrens, Tuija Kekarainen, Fred Fändrich, Cristina Cuturi, Silvia Gregori, Diana Metes, Hans J Schlitt, Angus W Thomson, Edward K Geissler, James A Hutchinson
BACKGROUND: The human regulatory macrophage (Mreg) has emerged as a promising cell type for use as a cell-based adjunct immunosuppressive therapy in solid organ transplant recipients. In this brief report, dehydrogenase/reductase 9 (DHRS9) is identified as a robust marker of human Mregs. MATERIALS AND METHODS: The cognate antigen of a mouse monoclonal antibody raised against human Mregs was identified as DHRS9 by immunoprecipitation and MALDI-MS sequencing. Expression of DHRS9 within a panel of monocyte-derived macrophages was investigated by quantitative PCR, immunoblotting and flow cytometry...
June 7, 2017: Transplantation
https://www.readbyqxmd.com/read/28592884/enhancement-of-th1-th17-inflammation-by-trim21-in-beh%C3%A3-et-s-disease
#18
Yuri Ahn, Ji-Hye Hwang, Zhenlong Zheng, Dongsik Bang, Do-Young Kim
The etiology of Behçet's disease (BD), a chronic, multisystemic autoinflammatory and autoimmune disease, remains unknown; however, researchers have postulated that infectious agents, such as herpes simplex virus, are significant triggering factors of BD. Tripartite motif-containing (TRIM) proteins exhibit antiviral properties, mediating antiviral defense mechanisms. The purpose of this study was to investigate TRIM21 protein expression in the monocytes of BD patients and to identify the role of TRIM21 in immune dysregulation in BD...
June 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28591277/evaluation-of-nicotinamide-as-an-anti-inflammatory-and-anti-angiogenic-agent-in-uveal-melanoma-cell-lines
#19
Evangelina Esposito, Sultan Aldrees, Christina Mastromonaco, Pablo Zoroquiain, Natalia Vila, Patrick T Logan, Shriya Hari, Miguel N Burnier
Purpose: To investigate the effect of nicotinamide on the secretion of pro-an giogenic and pro-inflammatory cytokines in uveal melanoma cell lines. Methods: Two human uveal melanoma cell lines (92.1 and OCM-1) were treated with nicotinamide (10 mmol/L) or control media for 48 hours in culture. The su perna tant from each culture was used in sandwich enzyme-linked immuno sorbent assay-based angiogenesis and inflammation arrays to evaluate the effects of exogenously administered nicotinamide on the secretion of a total of 20 pro-an gio genic and pro-inflammatory proteins...
March 2017: Arquivos Brasileiros de Oftalmologia
https://www.readbyqxmd.com/read/28589429/influence-of-ovarian-cancer-type-i-and-type-ii-microenvironment-on-the-phenotype-and-function-of-monocyte-derived-dendritic-cells
#20
J Surówka, I Wertel, K Okła, W Bednarek, R Tarkowski, J Kotarski
PURPOSE: The aim of this study was to evaluate the influence of ovarian cancer cell lysates isolated from type I or type II ovarian cancer (OC) on the phenotype of monocyte-derived dendritic cells (Mo-DCs) and the cytokine profile. We also determined whether the Mo-DCs and tumor microenvironment, reflected by peritoneal fluid (PF) from type I or II ovarian cancer, could promote regulatory T cell (Tregs) differentiation from naive CD4(+) lymphocytes in vitro. RESULTS: Our results show a significant role of the ovarian cancer microenvironment reflected by PF from type I or II OC in the inhibition of the DC differentiation process...
June 6, 2017: Clinical & Translational Oncology
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