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Monocyte/macrophage cell therapy

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https://www.readbyqxmd.com/read/28528668/trpv1-channels-in-immune-cells-and-hematological-malignancies
#1
Sofia A Omari, Murray J Adams, Dominic P Geraghty
Transient receptor potential vanilloid-1 (TRPV1) is a member of the TRP family of channels that are responsible for nociceptive, thermal, and mechanical sensations. Originally associated exclusively with sensory neurons, TRPV1 is now known to be present in almost all organs, including cells of the immune system, where TRPV1 has been shown to play a pivotal role in inflammation and immunity. Monocytes, macrophages, and dendritic cells express TRPV1, with both mouse and human studies suggesting that TRPV1 activation protects against endotoxin-induced inflammation...
2017: Advances in Pharmacology
https://www.readbyqxmd.com/read/28526770/therapeutic-ige-antibodies-harnessing-a-macrophage-mediated-immune-surveillance-mechanism-against-cancer
#2
REVIEW
Sophia N Karagiannis, Debra H Josephs, Heather J Bax, James F Spicer
IgG monoclonal antibodies have made significant contributions to cancer therapy, but suffer from several limitations that restrict their effectiveness in unleashing host immune system components against tumors. The development of monoclonal antibodies of an alternative class, namely IgE, may offer enhanced immune surveillance and superior effector cell potency against cancer cells. In our recent article, we elaborate our proof-of-concept studies of a mouse/human chimeric IgE antibody (MOv18 IgE), which is specific for the cancer-associated antigen folate receptor alpha...
May 19, 2017: Cancer Research
https://www.readbyqxmd.com/read/28526535/tnf-%C3%AE-is-superior-to-conventional-inflammatory-mediators-in-forecasting-ivig-nonresponse-and-coronary-arteritis-in-chinese-children-with-kawasaki-disease
#3
Peng Hu, Guang Mei Jiang, Yue Wu, Bao Yu Huang, Si Yan Liu, Dong Dong Zhang, Yao Xu, Yang Fang Wu, Xun Xia, Wei Wei, Bo Hu
BACKGROUND: Tumor necrosis factor (TNF) -α is of inflammatory cytokines produced chiefly by activated monocyte/macrophages, and has been implicated in the pathogenesis of Kawasaki disease (KD). We elucidated the relationship of plasma TNF-α with conventional inflammatory mediators, clinical classification, intravenous immunoglobulin (IVIG) response and coronary arteritis in the course of KD. METHODS: Seventy Chinese children with KD were enrolled and divided into 6 subgroups, including complete KD, incomplete KD, IVIG-responsive KD, IVIG-nonresponsive KD, coronary artery (CA) -noninvolvement KD and CA-involvement KD...
May 16, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28518185/osteogenic-potential-of-adipose-derived-macrospheroids-cocultured-with-cd11b-monocytes
#4
Hidemi Nakata, Maiko Yamamoto, Emi Okada, Tomoko Nagayama, Munemitsu Miyasaka, Shohei Kasugai, Shinji Kuroda
PURPOSE: Among potential cell-based therapies, adipose-derived stem cells (ASCs) have been proposed as a promising source of stem cells for tissue regeneration. Although many recent clinical trials have investigated the use of adipose tissue or ASCs in transplantation, analysis of the microstructures of outgrowing macrosized spheroids (macrospheroids) or three-dimensional coculture of ASC spheroids and monocyte/macrophage lineages has not been performed. The aim of this study was to analyze the microstructures of murine-derived ASC macrospheroids and the growth and osteogenic potential of these macrospheroids in a three-dimensional environment and after calcification induction by coculture with monocytes...
May 18, 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28507122/control-of-metastatic-niche-formation-by-targeting-apba3-mint3-in-inflammatory-monocytes
#5
Toshiro Hara, Hiroki J Nakaoka, Tetsuro Hayashi, Kouhei Mimura, Daisuke Hoshino, Masahiro Inoue, Fumitaka Nagamura, Yoshinori Murakami, Motoharu Seiki, Takeharu Sakamoto
Cancer metastasis is intricately orchestrated by both cancer and normal cells, such as endothelial cells and macrophages. Monocytes/macrophages, which are often co-opted by cancer cells and promote tumor malignancy, acquire more than half of their energy from glycolysis even during normoxic conditions. This glycolytic activity is maintained during normoxia by the functions of hypoxia inducible factor 1 (HIF-1) and its activator APBA3. The mechanism by which APBA3 inhibition partially suppresses macrophage function and affects cancer metastasis is of interest in view of avoidance of the adverse effects of complete suppression of macrophage function during therapy...
May 15, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28506804/chloroquine-enhances-the-antimycobacterial-activity-of-isoniazid-and-pyrazinamide-by-reversing-inflammation-induced-macrophage-efflux
#6
U Matt, P Selchow, M Dal Molin, S Strommer, O Sharif, K Schilcher, F Andreoni, A Stenzinger, A S Zinkernagel, M Zeitlinger, P Sander, J Nemeth
Mycobacterium tuberculosis (MTB) is notorious for persisting within host macrophages. Efflux pumps decrease intracellular drug levels, thus fostering persistence of MTB during therapy. Isoniazid (INH) and pyrazinamide (PZA) are substrates of the efflux pump breast cancer resistance protein-1 (BCRP-1), which is inhibited by chloroquine (CQ). In this study, BCRP-1 was found to be expressed on macrophages of human origin and on foamy giant cells at the site of MTB infection. In the current in vitro study, interferon-gamma (IFNγ) increased the expression of BCRP-1 in macrophages derived from the human monocytic leukaemia cell line THP-1...
May 12, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28506464/recruited-monocytes-and-type-2-immunity-promote-lung-regeneration-following-pneumonectomy
#7
Andrew J Lechner, Ian H Driver, Jinwoo Lee, Carmen M Conroy, Abigail Nagle, Richard M Locksley, Jason R Rock
To investigate the role of immune cells in lung regeneration, we used a unilateral pneumonectomy model that promotes the formation of new alveoli in the remaining lobes. Immunofluorescence and single-cell RNA sequencing found CD115+ and CCR2+ monocytes and M2-like macrophages accumulating in the lung during the peak of type 2 alveolar epithelial stem cell (AEC2) proliferation. Genetic loss of function in mice and adoptive transfer studies revealed that bone marrow-derived macrophages (BMDMs) traffic to the lung through a CCL2-CCR2 chemokine axis and are required for optimal lung regeneration, along with Il4ra-expressing leukocytes...
May 3, 2017: Cell Stem Cell
https://www.readbyqxmd.com/read/28502933/sustained-tubulointerstitial-inflammation-in-kidney-with-severe-leptospirosis
#8
Keiko Tanaka, Katsuyuki Tanabe, Naoko Nishii, Keiichi Takiue, Hitoshi Sugiyama, Jun Wada
Leptospirosis is frequently associated with acute kidney injury. Some survivors are known to progress to chronic kidney disease due to sustained tubulointerstitial inflammation. We present a case of severe leptospirosis with acute renal failure. Although antibiotic therapy resolved the infection, moderate renal dysfunction remained. A renal biopsy demonstrated marked inflammatory infiltration in the tubules and interstitium. Many of the inflammatory cells were CD68-positive monocytes/macrophages, predominantly M1 phenotype...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28490595/sensing-of-hiv-1-entry-triggers-a-type-i-interferon-response-in-human-primary-macrophages
#9
Jérémie Decalf, Marion Desdouits, Vasco Rodrigues, François-Xavier Gobert, Matteo Gentili, Santy Marques-Ladeira, Célia Chamontin, Marylène Mougel, Bruna Cunha de Alencar, Philippe Benaroch
Along with CD4+ T lymphocytes, macrophages are a major cellular source of HIV-1 replication, and a potential viral reservoir. Following entry and reverse transcription in macrophages, cloaking of the viral cDNA by the HIV-1 capsid limits its cytosolic detection, enabling efficient replication. However, whether incoming HIV-1 particles are sensed by macrophages prior to reverse-transcription, remains unclear. Here, we show that HIV-1 triggers a broad expression of interferon-stimulated genes (ISG) in monocyte-derived macrophages within a few hours after infection...
May 10, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28483134/a-woman-in-her-30s-with-a-history-of-cervical-cancer-presents-with-shortness-of%C3%A2-breath-and-pleuritic-chest-pain
#10
Jing Gennie Wang, Patrick Gerard Cox
A woman in her 30s presented to the ED with a 3-month history of shortness of breath on exertion, dry cough, and pleuritic chest pain. A month ago, the patient was seen at an internal medicine clinic and was found to have a right pleural effusion. A thoracentesis revealed straw-colored fluid, a total nucleated cell count of 1,260 × 10(6)/L, and a differential with neutrophils of 0.15, lymphocytes of 0.55, macrophages/monocytes of 0.19, and eosinophils of 0.10. Fluid cytology and culture were negative. The patient was presumed to have a parapneumonic effusion and treated empirically with antibiotics...
May 2017: Chest
https://www.readbyqxmd.com/read/28475599/susd2-promotes-tumor-associated-macrophage-recruitment-by-increasing-levels-of-mcp-1-in-breast-cancer
#11
Elizabeth M Hultgren, Mitch E Patrick, Rick L Evans, Catherine T Stoos, Kristi A Egland
Tumor-associated macrophages (TAMs) play a role in tumor angiogenesis and are recruited into the tumor microenvironment (TME) by secreted chemokines, including Monocyte Chemoattractant Protein-1 (MCP-1/CCL2). Angiogenesis is required to sustain proliferation and enable metastasis of breast cancer (BCa) cells. Understanding the underlying mechanisms of TAM recruitment would allow for the identification of desperately needed novel drug targets. Sushi Domain Containing 2 (SUSD2), a transmembrane protein on BCa cells, was previously shown to promote tumor angiogenesis in a murine model...
2017: PloS One
https://www.readbyqxmd.com/read/28471458/comprehensive-analysis-of-mouse-retinal-mononuclear-phagocytes
#12
Anika Lückoff, Rebecca Scholz, Florian Sennlaub, Heping Xu, Thomas Langmann
The innate immune system is activated in a number of degenerative and inflammatory retinal disorders such as age-related macular degeneration (AMD). Retinal microglia, choroidal macrophages, and recruited monocytes, collectively termed 'retinal mononuclear phagocytes', are critical determinants of ocular disease outcome. Many publications have described the presence of these cells in mouse models for retinal disease; however, only limited aspects of their behavior have been uncovered, and these have only been uncovered using a single detection method...
June 2017: Nature Protocols
https://www.readbyqxmd.com/read/28459461/mir-181b-modulates-egfr-dependent-vcam-1-expression-and-monocyte-adhesion-in-glioblastoma
#13
Y-S Liu, H-Y Lin, S-W Lai, C-Y Huang, B-R Huang, P-Y Chen, K-C Wei, D-Y Lu
Tumor-associated macrophages (TAMs) originate as circulating monocytes, and are recruited to gliomas, where they facilitate tumor growth and migration. Understanding the interaction between TAM and cancer cells may identify therapeutic targets for glioblastoma multiforme (GBM). Vascular cell adhesion molecule-1 (VCAM-1) is a cytokine-induced adhesion molecule expressed on the surface of cancer cells, which is involved in interactions with immune cells. Analysis of the glioma patient database and tissue immunohistochemistry showed that VCAM-1 expression correlated with the clinico-pathological grade of gliomas...
May 1, 2017: Oncogene
https://www.readbyqxmd.com/read/28457935/nf-%C3%AE%C2%BAb-inhibitors-that-prevent-foam-cell-formation-and-atherosclerotic-plaque-accumulation
#14
Jesse D Plotkin, Michael G Elias, Anthony L Dellinger, Christopher L Kepley
The transformation of monocyte-derived macrophages into lipid-laden foam cells is one inflammatory process underlying atherosclerotic disease. Previous studies have demonstrated that fullerene derivatives (FDs) have inflammation-blunting properties. Thus, it was hypothesized that FD could inhibit the transformation process underlying foam cell formation. Fullerene derivatives inhibited the phorbol myristic acid/oxidized low-density lipoprotein-induced differentiation of macrophages into foam cells as determined by lipid staining and morphology...
April 27, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/28451557/efficacy-and-safety-of-g2013-as-a-novel-immunosuppressive-agent-on-differentiation-maturation-and-function-of-human-dendritic-cells
#15
Nazanin Arjomand Fard, Nakisa Tabrizian, Reza Mirzaei, Jamshid Hadjati, Farzaneh Tofighi Zavareh, Ali Reza Salehi Nodeh, Abbas Mirshafiey
BACKGROUND: The expanse of dendritic cells (DC) differentiation plays an important role in determining immune response. DC-based immunosuppressive drugs have notable side effects in increasing the risk of infectious diseases and cancers. G2013, as a novel anti-inflammatory and immunosuppressive agent, has been tested in experimental model of multiple sclerosis. The aim of this study was to conduct the safety property of G2013 on dendritic cells biology. METHODS: The effect of G2013 on differentiation, maturation, and function of dendritic cells was examined at Tehran University in 2014...
February 2017: Iranian Journal of Public Health
https://www.readbyqxmd.com/read/28448535/alpha-1-antitrypsin-supplementation-improves-alveolar-macrophages-efferocytosis-and-phagocytosis-following-cigarette-smoke-exposure
#16
Karina A Serban, Daniela N Petrusca, Andrew Mikosz, Christophe Poirier, Angelia D Lockett, Lauren Saint, Matthew J Justice, Homer L Twigg, Michael A Campos, Irina Petrache
Cigarette smoking (CS), the main risk factor for COPD (chronic obstructive pulmonary disease) in developed countries, decreases alveolar macrophages (AM) clearance of both apoptotic cells and bacterial pathogens. This global deficit of AM engulfment may explain why active smokers have worse outcomes of COPD exacerbations, episodes characterized by airway infection and inflammation that carry high morbidity and healthcare cost. When administered as intravenous supplementation, the acute phase-reactant alpha-1 antitrypsin (A1AT) reduces the severity of COPD exacerbations in A1AT deficient (AATD) individuals and of bacterial pneumonia in murine models, but the effect of A1AT on AM scavenging functions has not been reported...
2017: PloS One
https://www.readbyqxmd.com/read/28447729/effects-of-endoplasmic-reticulum-stress-on-apoptosis-induction-in-radioresistant-macrophages
#17
Hironori Yoshino, Yu Kumai, Ikuo Kashiwakura
Macrophages are important in the host's immune defense against pathogens. However, recent evidence has demonstrated that macrophages are also involved in the development of disease, including cancer. Therefore, it is important to regulate apoptosis in tumor‑related macrophages for effective cancer treatment. In the present study, the effect of endoplasmic reticulum (ER) stress on apoptosis induction was examined in human monocytic cell‑derived macrophages. Radiation therapy in cancer results in irradiating macrophages as well as cancer cells in the tumor microenvironment...
May 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28446911/the-immune-response-against-acinetobacter-baumannii-an-emerging-pathogen-in-nosocomial-infections
#18
REVIEW
María Guadalupe García-Patiño, Rodolfo García-Contreras, Paula Licona-Limón
Acinetobacter baumannii is the etiologic agent of a wide range of nosocomial infections, including pneumonia, bacteremia, and skin infections. Over the last 45 years, an alarming increase in the antibiotic resistance of this opportunistic microorganism has been reported, a situation that hinders effective treatments. In order to develop effective therapies against A. baumannii it is crucial to understand the basis of host-bacterium interactions, especially those concerning the immune response of the host...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28442752/zika-virus-infection-reprograms-global-transcription-of-host-cells-to-allow-sustained-infection
#19
Shashi Kant Tiwari, Jason Dang, Yue Qin, Gianluigi Lichinchi, Vikas Bansal, Tariq M Rana
Zika virus (ZIKV) is an emerging virus causally linked to neurological disorders, including congenital microcephaly and Guillain-Barré syndrome. There are currently no targeted therapies for ZIKV infection. To identify novel antiviral targets and to elucidate the mechanisms by which ZIKV exploits the host cell machinery to support sustained replication, we analyzed the transcriptomic landscape of human microglia, fibroblast, embryonic kidney and monocyte-derived macrophage cell lines before and after ZIKV infection...
April 26, 2017: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/28435677/control-of-immune-cell-entry-through-the-tumour-vasculature-a-missing-link-in-optimising-melanoma-immunotherapy
#20
REVIEW
Lih Yin Tan, Carmela Martini, Zvi G Fridlender, Claudine S Bonder, Michael P Brown, Lisa M Ebert
Metastatic melanoma remains a fatal disease to many worldwide, even after the breakthrough introduction of targeted therapies such as BRAF inhibitors and immune checkpoint blockade therapies such as CTLA-4 and PD-1 inhibitors. With advances in our understanding of this disease, as well as the increasing data gathered from patient studies, the significance of the host immune response to cancer progression and response to treatment is becoming clear. More specifically, the presence of intratumoral CD8(+) cytotoxic T-cells correlates with better prognosis whereas the accumulation of monocytes/macrophages and neutrophils in the tumour is often associated with worse prognosis...
March 2017: Clinical & Translational Immunology
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