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Monocyte/macrophage cell therapy

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https://www.readbyqxmd.com/read/28066794/altered-monocyte-and-endothelial-cell-adhesion-molecule-expression-is-linked-to-vascular-inflammation-in-human-immunodeficiency-virus-infection
#1
Manjusha Kulkarni, Emily Bowman, Janelle Gabriel, Taylor Amburgy, Elizabeth Mayne, David A Zidar, Courtney Maierhofer, Abigail Norris Turner, Jose A Bazan, Susan L Koletar, Michael M Lederman, Scott F Sieg, Nicholas T Funderburg
BACKGROUND: Human immunodeficiency virus (HIV)-infected individuals have increased risk for vascular thrombosis, potentially driven by interactions between activated leukocytes and the endothelium. METHODS: Monocyte subsets (CD14(+)CD16(-), CD14(+)CD16(+), CD14(Dim)CD16(+)) from HIV negative (HIV(-)) and antiretroviral therapy-treated HIV positive (HIV(+)) participants (N = 19 and 49) were analyzed by flow cytometry for adhesion molecule expression (lymphocyte function-associated antigen 1 [LFA-1], macrophage-1 antigen [Mac-1], CD11c/CD18, very late antigen [VLA]-4) and the fractalkine receptor (CX3CR1); these receptors recognize ligands (intercellular adhesion molecules [ICAMs], vascular cell adhesion molecule [VCAM]-1, fractalkine) on activated endothelial cells (ECs) and promote vascular migration...
October 2016: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/28062499/role-of-kca3-1-channels-in-macrophage-polarization-and-its-relevance-in-atherosclerotic-plaque-instability
#2
Rende Xu, Chenguang Li, Yizhe Wu, Li Shen, Jianying Ma, Juying Qian, Junbo Ge
OBJECTIVE: Emerging evidence indicates that proinflammatory macrophage polarization imbalance plays a key role in atherosclerotic plaque progression and instability. The calcium-activated potassium channel KCa3.1 is critically involved in macrophage activation and function. However, the role of KCa3.1 in macrophage polarization is unknown. This study investigates the potential role of KCa3.1 in transcriptional regulation in macrophage polarization and its relationship to plaque instability...
December 29, 2016: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28047448/su-f-t-59-the-effect-of-radiotherapy-dose-on-immunoadjuvants
#3
M Moreau, S Yasmin-Karim, Y Hao, W Ngwa
PURPOSE: Combining radiotherapy with immunotherapy is a promising approach to enhance treatment outcomes for cancer patients. This in-vitro study investigated which radiotherapy doses could adversely affect the function of anti-CD40 mAb, which is one of the key immunoadjuvants under investigations for priming such combination therapy. METHODS: Human monocyte derived THP-1 cells were treated with 100ng/mL of PMA in chamber slides to differentiate into macrophage...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28027709/conditioned-medium-from-periodontal-ligament-stem-cells-enhances-periodontal-regeneration
#4
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/28025034/ccl2-ccr2-signaling-pathway-in-glioblastoma-multiforme
#5
REVIEW
Alireza Vakilian, Hossein Khorramdelazad, Parisa Heidari, Zahra Sheikh Rezaei, Gholamhossein Hassanshahi
Glioblastoma multiform (GBM) is described as one of the most frequent primary brain tumors. These types of malignancies constitute only 15% of all primary brain tumors. Despite, extensive developments on effective therapeutic methods during the 20th century as well as the first decade of the present century (21st), the median survival rate for patients suffering from GBM is only approximately 15 months, even in response to multi-modal therapy. numerous types of reticuloendothelial system cells such as macrophages and microglial cells occupied within both GBM and also normal surrounding tissues...
December 24, 2016: Neurochemistry International
https://www.readbyqxmd.com/read/28017830/dermal-fibroblasts-promote-alternative-macrophage-activation-improving-impaired-wound-healing
#6
Rubén A Ferrer, Anja Saalbach, Mike Grünwedel, Nadine Lohmann, Inka Forstreuter, Susann Saupe, Elke Wandel, Jan C Simon, Sandra Franz
Tight control of inflammation is required for tissue repair such as wound healing and depends on alternative polarization of macrophages as check-point for inflammatory resolution. Its perturbations lead to impaired regeneration and administration of cells/cell factors capable of reversing inflammation and rescuing alternative polarization could be promising for treating inflammatory diseases. We show that human dermal fibroblasts (dFb) are ideal candidates for such a task by demonstrating a new function of these cells, which is modulating macrophage-polarization...
December 22, 2016: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28002407/identification-of-an-atypical-monocyte-and-committed-progenitor-involved-in-fibrosis
#7
Takashi Satoh, Katsuhiro Nakagawa, Fuminori Sugihara, Ryusuke Kuwahara, Motooki Ashihara, Fumihiro Yamane, Yosuke Minowa, Kiyoharu Fukushima, Isao Ebina, Yoshichika Yoshioka, Atsushi Kumanogoh, Shizuo Akira
Monocytes and macrophages comprise a variety of subsets with diverse functions. It is thought that these cells play a crucial role in homeostasis of peripheral organs, key immunological processes and development of various diseases. Among these diseases, fibrosis is a life-threatening disease of unknown aetiology. Its pathogenesis is poorly understood, and there are few effective therapies. The development of fibrosis is associated with activation of monocytes and macrophages. However, the specific subtypes of monocytes and macrophages that are involved in fibrosis have not yet been identified...
December 21, 2016: Nature
https://www.readbyqxmd.com/read/28000758/chronic-hepatitis-c-infection-induced-liver-fibrogenesis-is-associated-with-m2-macrophage-activation
#8
Moses T Bility, Kouki Nio, Feng Li, David R McGivern, Stanley M Lemon, Eoin R Feeney, Raymond T Chung, Lishan Su
The immuno-pathogenic mechanisms of chronic hepatitis C virus (HCV) infection remain to be elucidated and pose a major hurdle in treating or preventing chronic HCV-induced advanced liver diseases such as cirrhosis. Macrophages are a major component of the inflammatory milieu in chronic HCV-induced liver disease, and are generally derived from circulating inflammatory monocytes; however very little is known about their role in liver diseases. To investigate the activation and role of macrophages in chronic HCV-induced liver fibrosis, we utilized a recently developed humanized mouse model with autologous human immune and liver cells, human liver and blood samples and cell culture models of monocyte/macrophage and/or hepatic stellate cell activation...
December 21, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27979856/2016-russell-ross-memorial-lecture-in-vascular-biology-molecular-cellular-mechanisms-in-the-progression-of-atherosclerosis
#9
REVIEW
Ira Tabas
Atherosclerosis is initiated by the subendothelial accumulation of apoB-containing lipoproteins, which initiates a sterile inflammatory response dominated by monocyte-macrophages but including all classes of innate and adaptive immune cells. These inflammatory cells, together with proliferating smooth muscle cells and extracellular matrix, promote the formation of subendothelial lesions or plaques. In the vast majority of cases, these lesions do not cause serious clinical symptoms, which is due in part to a resolution-repair response that limits tissue damage...
December 15, 2016: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/27942582/pentraxin-2-suppresses-c-jun-ap-1-signaling-to-inhibit-progressive-fibrotic-disease
#10
Naoki Nakagawa, Luke Barron, Ivan G Gomez, Bryce G Johnson, Allie M Roach, Sei Kameoka, Richard M Jack, Mark L Lupher, Sina A Gharib, Jeremy S Duffield
Pentraxin-2 (PTX-2), also known as serum amyloid P component (SAP/APCS), is a constitutive, antiinflammatory, innate immune plasma protein whose circulating level is decreased in chronic human fibrotic diseases. Here we show that recombinant human PTX-2 (rhPTX-2) retards progression of chronic kidney disease in Col4a3 mutant mice with Alport syndrome, reducing blood markers of kidney failure, enhancing lifespan by 20%, and improving histological signs of disease. Exogenously delivered rhPTX-2 was detected in macrophages but also in tubular epithelial cells, where it counteracted macrophage activation and was cytoprotective for the epithelium...
December 8, 2016: JCI Insight
https://www.readbyqxmd.com/read/27919626/targeted-delivery-of-glucocorticoids-to-macrophages-in-a-mouse-model-of-multiple-sclerosis-using-inorganic-organic-hybrid-nanoparticles
#11
Elena Montes-Cobos, Sarah Ring, Henrike J Fischer, Joachim Heck, Judith Strauß, Markus Schwaninger, Sybille D Reichardt, Claus Feldmann, Fred Lühder, Holger M Reichardt
Glucocorticoids (GC) are widely used to treat acute relapses in multiple sclerosis (MS) patients, but their application is accompanied by side effects due to their broad spectrum of action. Here, we report on the therapeutic option to apply GC via inorganic-organic hybrid nanoparticles (IOH-NP) with the composition [ZrO](2+)[(BMP)0.9(FMN)0.1](2-) (designated BMP-NP with BMP: betamethasone phosphate; FMN: flavinmononucleotide). We found that these BMP-NP have an increased cell type-specificity compared to free GC while retaining full therapeutic efficacy in a mouse model of MS...
December 3, 2016: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/27915370/prognostic-significance-of-the-lymphocyte-to-monocyte-ratio-and-the-tumor-infiltrating-lymphocyte-to-tumor-associated-macrophage-ratio-in-patients-with-stage-t3n0m0-esophageal-squamous-cell-carcinoma
#12
Yingming Zhu, Minghuan Li, Cong Bo, Xuemei Liu, Jianbo Zhang, Zhenxiang Li, Fen Zhao, Li Kong, Jinming Yu
PURPOSE: We assessed the prognostic significance of, and the relationship between, the pretreatment lymphocyte-to-monocyte ratio (LMR) and the TILs/tumor-associated macrophages (TAMs) ratio, in patients with esophageal squamous cell carcinoma (ESCC) of pathological stage T3N0M0 (pT3N0M0). METHODS: A total of 220 newly diagnosed ESCC patients of stage pT3N0M0 who had not undergone neoadjuvant therapy were included. Densities of CD8+ TILs, CD4+ TILs, CD45RO+ TILs, and CD68+ TAMs were assessed by immunohistochemical staining of tissue microarray cores from all 220 pT3N0M0 ESCC patients (who underwent radical resection)...
December 3, 2016: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/27912071/classical-and-alternative-macrophages-have-impaired-function-during-acute-and-chronic-hiv-1-infection
#13
Leonardo J Galvão-Lima, Milena S Espíndola, Luana S Soares, Fabiana A Zambuzi, Maira Cacemiro, Caroline Fontanari, Valdes R Bollela, Fabiani G Frantz
OBJECTIVES: Three decades after HIV recognition and its association with AIDS development, many advances have emerged - especially related to prevention and treatment. Undoubtedly, the development of Highly Active Antiretroviral Therapy (HAART) dramatically changed the future of the syndrome that we know today. In the present study, we evaluate the impact of Highly Active Antiretroviral Therapy on macrophage function and its relevance to HIV pathogenesis. METHODS: PBMCs were isolated from blood samples and monocytes (CD14+ cells) were purified...
November 29, 2016: Brazilian Journal of Infectious Diseases
https://www.readbyqxmd.com/read/27906000/the-antiviral-compound-bit225-inhibits-hiv-1-replication-in-myeloid-dendritic-cells
#14
Gabriela Khoury, Gary Ewart, Carolyn Luscombe, Michelle Miller, John Wilkinson
BACKGROUND: Previous studies with BIT225 (N-carbamimidoyl-5-(1-methyl-1H-pyrazol-4-yl)-2-naphthamide) have demonstrated a unique antiviral activity that blocks the release of HIV-1 from monocyte-derived macrophages (MDM). Antagonising the ion channel formed by HIV-1 Vpu, BIT225 preferentially targets de novo intracellular virus produced in 'virus-containing compartments' of MDM. In primary infections, dendritic cells (DC) are one of the first cells infected by HIV-1 and can transfer virus to more permissive CD4(+) T cells, making these cells an important target for novel antiviral therapies...
February 8, 2016: AIDS Research and Therapy
https://www.readbyqxmd.com/read/27897220/impact-of-the-microbial-derived-short-chain-fatty-acid-propionate-on-host-susceptibility-to-bacterial-and-fungal-infections-in-vivo
#15
Eleonora Ciarlo, Tytti Heinonen, Jacobus Herderschee, Craig Fenwick, Matteo Mombelli, Didier Le Roy, Thierry Roger
Short chain fatty acids (SCFAs) produced by intestinal microbes mediate anti-inflammatory effects, but whether they impact on antimicrobial host defenses remains largely unknown. This is of particular concern in light of the attractiveness of developing SCFA-mediated therapies and considering that SCFAs work as inhibitors of histone deacetylases which are known to interfere with host defenses. Here we show that propionate, one of the main SCFAs, dampens the response of innate immune cells to microbial stimulation, inhibiting cytokine and NO production by mouse or human monocytes/macrophages, splenocytes, whole blood and, less efficiently, dendritic cells...
November 29, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27895180/regulatory-t-cells-promote-myositis-and-muscle-damage-in-toxoplasma-gondii-infection
#16
Richard M Jin, Sarah J Blair, Jordan Warunek, Reid R Heffner, Ira J Blader, Elizabeth A Wohlfert
The coordination of macrophage polarization is essential for the robust regenerative potential of skeletal muscle. Repair begins with a phase mediated by inflammatory monocytes (IM) and proinflammatory macrophages (M1), followed by polarization to a proregenerative macrophage (M2) phenotype. Recently, regulatory T cells (Tregs) were described as necessary for this M1 to M2 transition. We report that chronic infection with the protozoan parasite Toxoplasma gondii causes a nonresolving Th1 myositis with prolonged tissue damage associated with persistent M1 accumulation...
January 1, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27888616/ccl2-egf-positive-feedback-loop-between-cancer-cells-and-macrophages-promotes-cell-migration-and-invasion-in-head-and-neck-squamous-cell-carcinoma
#17
Lu Gao, Feng-Qin Wang, Hui-Min Li, Jie-Gang Yang, Jian-Gang Ren, Ke-Fei He, Bing Liu, Wei Zhang, Yi-Fang Zhao
Head and neck squamous cell carcinoma (HNSCC) represents the most frequent malignancy in the head and neck region, and the survival rate has not been improved significantly over the past three decades. It has been reported the infiltrated macrophages contribute to the malignant progression of HNSCC. However, the crosstalk between macrophages and cancer cells remains poorly understood. In the present study, we explored interactions between monocytes/macrophages and HNSCC cells by establishing the direct co-culture system, and found that the crosstalk promoted the migration and invasion of cancer cells by enhancing the invadopodia formation through a CCL2/EGF positive feedback loop...
November 23, 2016: Oncotarget
https://www.readbyqxmd.com/read/27858493/sp110b-controls-host-immunity-and-susceptibility-to-tuberculosis
#18
Jia-Shiun Leu, Mei-Ling Chen, So-Yi Chang, Sung-Liang Yu, Chia-Wei Lin, Hsuan Wang, Wan-Chen Chen, Chin-Hao Chang, Jann-Yuan Wang, Li-Na Lee, Chong-Jen Yu, Igor Kramnik, Bo-Shiun Yan
RATIONALE: How host genetic factors affect Mycobacterium tuberculosis (Mtb) infection outcomes remains largely unknown. SP110b, an interferon (IFN)-induced nuclear protein, is the nearest human homolog to the mouse Ipr1 protein that has been shown to control host innate immunity to Mtb infection. However, the function(s) of SP110b remain unclear. OBJECTIVES: To elucidate the role of SP110b in controlling the host immunity and susceptibility to tuberculosis (TB) as well as to identify the fundamental immunological and molecular mechanisms affected by SP110b...
November 18, 2016: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/27852701/bai1-orchestrates-macrophage-inflammatory-response-to-hsv-infection-implications-for-oncolytic-viral-therapy
#19
Chelsea M Bolyard, Walter Hans Meisen, Yeshavanth Banasavadi-Siddegowda, Jayson Hardcastle, Ji Young Yoo, Eric S Wohleb, Jeffrey Wojton, Jun-Ge Yu, Samuel Dubin, Maninder Khosla, Bo Xu, Jonathon G Smith, Christopher Alvarez-Breckenridge, Pete Pow-Anpongkul, Flavia Pichiorri, Jianying Zhang, Matthew Old, Dan Zhu, Erwin G Van Meir, Jonathan Godbout, Michael A Caligiuri, Jianhua Yu, Balveen Kaur
PURPOSE: Brain Angiogenesis Inhibitor (BAI1) facilitates phagocytosis, and bacterial pathogen clearance by macrophages; however, its role in viral infections is unknown. Here we examined the role of BAI1, and its N-terminal cleavage fragment (Vstat120) in antiviral macrophage responses to oncolytic herpes simplex virus (oHSV). EXPERIMENTAL DESIGN: Changes in infiltration and activation of monocytic and microglial cells after treatment of glioma-bearing mice brains with a control (rHSVQ1) or Vstat120-expressing (RAMBO) oHSV was analyzed using flow cytometry...
November 9, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/27829421/bovine-lactoferrin-free-of-lipopolysaccharide-can-induce-a-proinflammatory-response-of-macrophages
#20
Nada Zemankova, Katarina Chlebova, Jan Matiasovic, Jana Prodelalova, Jan Gebauer, Martin Faldyna
BACKGROUND: Lactoferrin (LF) is an 80 kDa glycoprotein which is known for its effects against bacteria, viruses and other pathogens. It also has a high potential in nutrition therapy and welfare of people and a variety of animals, including piglets. The ability to bind lipopolysaccharide (LPS) is one of the described anti-inflammatory mechanisms of LF. Previous studies suggested that cells can be stimulated even by LPS-free LF. Therefore, the aim of our study was to bring additional information about this possibility...
November 10, 2016: BMC Veterinary Research
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