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https://www.readbyqxmd.com/read/27903982/m2-like-tumor-associated-macrophages-drive-vasculogenic-mimicry-through-amplification-of-il-6-expression-in-glioma-cells
#1
Lin Zhang, Yangyang Xu, Jintang Sun, Weiliang Chen, Lei Zhao, Chao Ma, Qingjie Wang, Jia Sun, Bin Huang, Yun Zhang, Xingang Li, Xun Qu
Vasculogenic mimicry (VM) has offered a new horizon for understanding tumor angiogenesis, but the mechanisms of VM in glioma progression have not been studied explicitly until now. As a significant component of immune infiltration in tumor microenvironment, macrophages have been demonstrated to play an important role in tumor growth and angiogenesis. However, whether macrophages could play a potential key role in glioma VM is still poorly understood. Herein we reported that both VM and CD163+ cells were associated with WHO grade and reduced patient survival, and VM channel counting was correlated to the number of infiltrated CD163+ cells in glioma specimens...
November 26, 2016: Oncotarget
https://www.readbyqxmd.com/read/27898473/histopathological-and-clinical-findings-in-cutaneous-manifestation-of-erdheim-chester-disease-and-langerhans-cell-histiocytosis-overlap-syndrome-associated-with-the-brafv600e-mutation
#2
Julia Liersch, J Andrew Carlson, Jörg Schaller
The overlap of Erdheim-Chester disease (ECD) and Langerhans cell histiocytosis (LCH) is more common than it was generally accepted. Both diseases seem to be linked by a mutation in oncogenic BRAFV600E, probably an early event which occurs in bone marrow progenitor cells. In this article are described the clinical and histological findings in 2 cases of ECD-LCH overlap syndrome bearing the BRAFV600E mutation in both ECD and LCH lesions in bone and skin. In one case, lesions of ECD and LCH were situated directly site-to-site in the same bone section leading to the assumption of a common myeloid precursor cell for these diseases...
November 23, 2016: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/27898335/genetically-edited-pigs-lacking-cd163-show-no-resistance-following-infection-with-the-african-swine-fever-virus-isolate-georgia-2007-1
#3
Luca Popescu, Natasha N Gaudreault, Kristen M Whitworth, Maria V Murgia, Jerome C Nietfeld, Alan Mileham, Melissa Samuel, Kevin D Wells, Randall S Prather, Raymond R R Rowland
African swine fever is a highly contagious, often fatal disease of swine for which there is no vaccine or other curative treatment. The macrophage marker, CD163, is a putative receptor for African swine fever virus (ASFV). Pigs possessing a complete knockout of CD163 on macrophages were inoculated with Georgia 2007/1, a genotype 2 isolate. Knockout and wild type pen mates became infected and showed no differences in clinical signs, mortality, pathology or viremia. There was also no difference following in vitro infection of macrophages...
November 26, 2016: Virology
https://www.readbyqxmd.com/read/27897404/doxorubicin-inhibits-muscle-inflammation-after-eccentric-exercise
#4
Sheng-Chih Huang, Jin-Fu Wu, Suchada Saovieng, Wei-Horng Chien, Ming-Fen Hsu, Xiao-Fei Li, Shin-Da Lee, Chih-Yang Huang, Chih-Yang Huang, Chia-Hua Kuo
BACKGROUND: Doxorubicin, a widely used anti-tumour drug, is known to cause muscle loss in cancer patients. METHODS: Following an acute dose of doxorubicin injection (2.5 mg/kg per body weight), we examined macrophage distribution in rat soleus muscle challenged by eccentric exercise (downhill running). Long-term doxorubicin treatment (one injection every 3 days) on muscle mass and survival were also determined. RESULTS: Under non-exercised condition, increased tumour necrosis factor (TNF)-alpha mRNA and decreased IL-10 mRNA were observed in soleus muscle of doxorubicin-treated rats, compared with saline-treated control rats...
October 10, 2016: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/27895532/cd163-macrophage-and-erythrocyte-contents-in-aspirated-deep-vein-thrombus-are-associated-with-the-time-after-onset-a-pilot-study
#5
Eiji Furukoji, Toshihiro Gi, Atsushi Yamashita, Sayaka Moriguchi-Goto, Mio Kojima, Chihiro Sugita, Tatefumi Sakae, Yuichiro Sato, Toshinori Hirai, Yujiro Asada
BACKGROUND: Thrombolytic therapy is effective in selected patients with deep vein thrombosis (DVT). Therefore, identification of a marker that reflects the age of thrombus is of particular concern. This pilot study aimed to identify a marker that reflects the time after onset in human aspirated DVT. METHODS: We histologically and immunohistochemically analyzed 16 aspirated thrombi. The times from onset to aspiration ranged from 5 to 60 days (median of 13 days)...
2016: Thrombosis Journal
https://www.readbyqxmd.com/read/27889748/mir-146a-regulates-inflammatory-infiltration-by-macrophages-in-polymyositis-dermatomyositis-by-targeting-traf6-and-affecting-il-17-icam-1-pathway
#6
Yuanqin Yin, Fei Li, Jing Shi, Songlin Li, Jingjing Cai, Youhong Jiang
BACKGROUND/AIMS: The primary objective of this study was to investigate the role of miR-146a in inducing the inflammatory infiltration of macrophages in polymyositis/dermatomyositis (PM/DM) through targeting TNF receptor associated factor 6 (TRAF6), which may further down-regulate the Interleukin-17 (IL-17)/Intercellular Adhesion Molecule 1 (ICAM-1) pathway. METHODS: Biopsies were collected from PM/DM patients and healthy volunteers. PM/DM model establishment and macrophage isolation were performed on Sprague Dawley (SD) rats...
November 25, 2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27887870/involvement-of-indian-hedgehog-signaling-in-mesenchymal-stem-cell-augmented-rotator-cuff-tendon-repair-in-an-athymic-rat-model
#7
Jian-Chun Zong, Michael J Mosca, Ryan M Degen, Amir Lebaschi, Camila Carballo, Andrew Carbone, Guang-Ting Cong, Liang Ying, Xiang-Hua Deng, Scott A Rodeo
BACKGROUND: Bone marrow aspirate has been used in recent years to augment tendon-to-bone healing, including in rotator cuff repair. However, the healing mechanism in cell-based therapy has not been elucidated in detail. METHODS: Sixteen athymic nude rats were randomly allocated to 2 groups: experimental (human mesenchymal stem cells in fibrin glue carrier) and control (fibrin glue only). Animals were sacrificed at 2 and 4 weeks. Immunohistochemical staining was performed to evaluate Indian hedgehog (Ihh) signaling and SOX9 signaling in the healing enthesis...
November 22, 2016: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/27887719/leucine-rich-repeat-containing-g-protein-coupled%C3%A2-receptor%C3%A2-5-positive%C3%A2-cells%C3%A2-in-the-endometrial-stem-cell-niche
#8
Irene Cervelló, Claudia Gil-Sanchis, Xavier Santamaría, Amparo Faus, Julia Vallvé-Juanico, Patricia Díaz-Gimeno, Oriana Genolet, Antonio Pellicer, Carlos Simón
OBJECTIVE: To study, isolate and characterize leucine-rich repeat-containing heterotrimeric guanine nucleotide-binding protein-coupled receptor 5 (LGR5)-positive cells from human endometrium to determine their functional relevance. DESIGN: Prospective experimental animal study. SETTING: University research laboratories. ANIMAL(S): Nonobese diabetic mice (NOD-SCID) (strain code 394; NOD.CB17-Prkdc(scid)/NcrCrl). INTERVENTION(S): Human LGR5(+) cells were labeled with superparamagnetic iron oxide nanoparticles (SPIOs) and injected under the kidney capsule in immunocompromised mice...
November 22, 2016: Fertility and Sterility
https://www.readbyqxmd.com/read/27881657/crystal-structure-of-the-fifth-scavenger-receptor-cysteine-rich-domain-srcr5-from-porcine-cd163-reveals-an-important-residue-involved-in-porcine-reproductive-and-respiratory-syndrome-virus-infection
#9
Hongfang Ma, Longguang Jiang, Songlin Qiao, Yubao Zhi, Xin-Xin Chen, Yanyan Yang, Xiaojing Huang, Mingdong Huang, Rui Li, Gai-Ping Zhang
: Porcine reproductive and respiratory syndrome (PRRS) has become an economically critical factor in swine industry since its world-wide spread in the 1990s. The infection of its causative agent, PRRS virus (PRRSV), is proven to be mediated by an indispensable receptor, porcine CD163 (pCD163) and the fifth scavenger receptor cysteine-rich domain (SRCR5) is essential for the virus infection. However, the structural details and specific residues of pCD163 SRCR5 involved in infection have not been defined yet...
November 23, 2016: Journal of Virology
https://www.readbyqxmd.com/read/27864465/posttraumatic-therapeutic-hypothermia-alters-microglial-and-macrophage-polarization-toward-a-beneficial-phenotype
#10
Jessie S Truettner, Helen M Bramlett, W Dalton Dietrich
Posttraumatic inflammatory processes contribute to pathological and reparative processes observed after traumatic brain injury (TBI). Recent findings have emphasized that these divergent effects result from subsets of proinflammatory (M1) or anti-inflammatory (M2) microglia and macrophages. Therapeutic hypothermia has been tested in preclinical and clinical models of TBI to limit secondary injury mechanisms including proinflammatory processes. This study evaluated the effects of posttraumatic hypothermia (PTH) on phenotype patterns of microglia/macrophages...
November 18, 2016: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/27863082/allogeneic-platelet-rich-plasma-affects-monocyte-differentiation-to-dendritic-cells-causing-an-anti-inflammatory-microenvironment-putatively-fostering-the-wound-healing
#11
Andrea Papait, Ranieri Cancedda, Maddalena Mastrogiacomo, Alessandro Poggi
Autologous platelet rich plasma (PRP) is clinically used to induce repair of different tissues through the release of bioactive molecules. In some patients, the production of an efficient autologous PRP is unfeasible due to their compromised health. We developed an allogeneic PRP mismatched for AB0 and Rh antigens. To broadcast its clinical applications avoiding side effects the outcome of allogeneic PRP on immune response should be defined. Thus, we investigated whether PRP affected the differentiation of peripheral blood monocytes to dendritic cells upon stimulation with granulocyte monocyte colony stimulating factor and interleukin-4...
November 15, 2016: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/27861333/isolated-neurosarcoidosis-mimicking-multifocal-meningiomas-a-diagnosis-pitfall-a-case-report
#12
Kun Wang, Xiaoying He, Wei Wang, Huanjiang Niu, Yirong Wang, Xiujun Cai, Shuxu Yang
INTRODUCTION: Neurosarcoidosis accounts for approximately 5% of the sarcoidosis, which develops exclusively in the nervous system and is always difficult to diagnose. We describe a rare case of isolated neurosarcoidosis mimicking as multifocal meningiomas. A 27-year-old male was admitted to our hospital with a history of unconsciousness and convulsion 1 month ago, which was suspected as a seizure. The results showed no abnormalities in complete blood count; serum electrolytes; erythrocyte sedimentation rate and ultrasonography of the liver, pancreas, spleen, kidney and parotid gland, and so on...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27856486/myocardial-immunocompetent-cells-and-macrophage-phenotypes-as%C3%A2-histopathological-surrogates-for-diagnosis-of-cardiac-sarcoidosis-in-japanese
#13
Yasuyuki Honda, Toshiyuki Nagai, Yoshihiko Ikeda, Mamoru Sakakibara, Naoya Asakawa, Nobutaka Nagano, Michikazu Nakai, Kunihiro Nishimura, Yasuo Sugano, Keiko Ohta-Ogo, Yasuhide Asaumi, Takeshi Aiba, Hideaki Kanzaki, Kengo Kusano, Teruo Noguchi, Satoshi Yasuda, Hiroyuki Tsutsui, Hatsue Ishibashi-Ueda, Toshihisa Anzai
BACKGROUND: The histological diagnosis of cardiac sarcoidosis (CS) is based on the presence of myocardial granulomas; however, the sensitivity of endomyocardial biopsy is relatively low. We investigated whether immunocompetent cells including dendritic cells (DC) and macrophages in nongranuloma sections of endomyocardial biopsy samples could be histopathological surrogates for CS diagnosis. METHODS AND RESULTS: The numbers of DC and macrophages were investigated in 95 consecutive CS patients and 50 patients with nonischemic cardiomyopathy as controls...
November 17, 2016: Journal of the American Heart Association
https://www.readbyqxmd.com/read/27853670/features-of-omental-adipose-tissue-in-endometrial-cancer-patients-with-standard-or-metabolically-healthy-obesity-associations-with-tumor-process-characteristics
#14
Lev M Berstein, Aglaya G Iyevleva, Marina S Mukhina, Dmitry A Vasilyev, Tatyana E Poroshina
PURPOSE: Adipose tissue products may contribute to endometrial cancer (EC) initiation and further growth that encourages the analysis of this issue in patients with different obesity phenotypes. METHODS/PATIENTS: Omental fat depot characteristics were studied in EC patients (n = 57) with "standard" (SO) or "metabolically healthy" (MHO) obesity. Collected omental samples were evaluated by immunohistochemistry /IHC/ for brown fat marker UCP1, CYP19 (aromatase) and macrophage infiltration markers (CD68, CD163, crown-like structures/CLS) expression...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27853646/hepatocellular-carcinoma-is-accelerated-by-nash-involving-m2-macrophage-polarization-mediated-by-hif-1%C3%AE-induced-il-10
#15
Aditya Ambade, Abhishek Satishchandran, Banishree Saha, Benedek Gyongyosi, Patrick Lowe, Karen Kodys, Donna Catalano, Gyongyi Szabo
Obesity-related inflammation promotes cancer development. Tissue resident macrophages affect tumor progression and the tumor micro-environment favors polarization into alternatively activated macrophages (M2) that facilitate tumor invasiveness. Here, we dissected the role of western diet-induced NASH in inducing macrophage polarization in a carcinogen initiated model of hepatocellular carcinoma (HCC). Adult C57BL/6 male mice received diethyl nitrosamine (DEN) followed by 24 weeks of high fat-high cholesterol-high sugar diet (HF-HC-HSD)...
2016: Oncoimmunology
https://www.readbyqxmd.com/read/27847356/substitution-of-porcine-cd163-srcr-domain-5-with-a-cd163-like-homolog-confers-resistance-of-pigs-to-genotype-1-but-not-genotype-2-porcine-reproductive-and-respiratory-syndrome-prrs-viruses
#16
Kevin D Wells, Rachel Bardot, Kristin M Whitworth, Benjamin R Trible, Ying Fang, Alan Mileham, Maureen A Kerrigan, Melissa S Samuel, Randall S Prather, Raymond R R Rowland
: CD163 knockout (KO) pigs are resistant to infection with genotype 2 (Type 2) porcine reproductive and respiratory syndrome virus (PRRSV). Furthermore, the substitution of CD163 scavenger receptor cysteine-rich (SRCR) domain 5 with a homolog of human CD163-like (hCD163L1) SRCR 8 domain confers resistance of transfected HEK cells to Type 1 PRRSV. As a means to understand the role of domain 5 in PRRSV infection with both Type 1 and Type 2 viruses, pigs were genetically modified (GM) to possess one of the following genotypes: complete knock out (KO) of CD163, deletions within SRCR domain 5, or replacement (domain swap) of SRCR domain 5 with a synthesized exon encoding a homolog of hCD163L1 SRCR domain 8...
November 9, 2016: Journal of Virology
https://www.readbyqxmd.com/read/27846260/alternatively-activated-m2-macrophage-phenotype-is-inducible-by-endothelin-1-in-cultured-human-macrophages
#17
Stefano Soldano, Carmen Pizzorni, Sabrina Paolino, Amelia Chiara Trombetta, Paola Montagna, Renata Brizzolara, Barbara Ruaro, Alberto Sulli, Maurizio Cutolo
BACKGROUND: Alternatively activated (M2) macrophages are phenotypically characterized by the expression of specific markers, mainly macrophage scavenger receptors (CD204 and CD163) and mannose receptor-1 (CD206), and participate in the fibrotic process by over-producing pro-fibrotic molecules, such as transforming growth factor-beta1 (TGFbeta1) and metalloproteinase (MMP)-9. Endothelin-1 (ET-1) is implicated in the fibrotic process, exerting its pro-fibrotic effects through the interaction with its receptors (ETA and ETB)...
2016: PloS One
https://www.readbyqxmd.com/read/27835889/immunoscore-encompassing-cd3-and-cd8-t-cell-densities-in-distant-metastasis-is-a-robust-prognostic-marker-for-advanced-colorectal-cancer
#18
Yoonjin Kwak, Jiwon Koh, Duck-Woo Kim, Sung-Bum Kang, Woo Ho Kim, Hye Seung Lee
BACKGROUND: The immunoscore (IS), an index based on the density of CD3+ and CD8+ tumor-infiltrating lymphocytes (TILs) in the tumor center (CT) and invasive margin (IM), has gained considerable attention as a prognostic marker. Tumor-associated macrophages (TAMs) have also been reported to have prognostic value. However, its clinical significance has not been fully clarified in patients with advanced CRC who present with distant metastases. METHODS: The density of CD3+, CD4+, CD8+, FOXP3+, CD68+, and CD163+ immune cells within CRC tissue procured from three sites-the primary CT, IM, and distant metastasis (DM)-was determined using immunohistochemistry and digital image analyzer (n=196)...
November 8, 2016: Oncotarget
https://www.readbyqxmd.com/read/27828874/soluble-cd163-in-cmv-infected-and-uninfected-subjects-on-virologically-suppressive-antiretroviral-therapy-in-the-icona-cohort
#19
Serena Vita, Miriam Lichtner, Giulia Marchetti, Claudia Mascia, Esther Merlini, Paola Cicconi, Vincenzo Vullo, Pierluigi Viale, Andrea Costantini, Antonella DʼArminio Monforte
AIMS: To contribute to the understanding of the role played by CMV in sustaining monocyte/macrophage-mediated immune activation in ART treated HIV infected subjects. DESIGN: and Methods: We selected 23 CMV-uninfected and 46 CMV-infected HIV+ subjects, matched for age, CD4 nadir, HIV infection duration, viral hepatitis serostatus. All subjects were on successful ART since at least 1 year. A group of 16 healthy donors with similar age and sex was also included. Plasma levels of TNF-α, IL-6, sCD163, sCD14 and CMV IgG levels were measured in duplicate with human ELISA kits...
November 4, 2016: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/27828802/agminated-clear-cell-tumor-an-impostor-of-pecoma-and-distinctive-dermal-clear-cell-mesenchymal-neoplasm
#20
Ana Isabel Teixeira, Luís Soares-Almeida, Heinz Kutzner
Cutaneous clear cell tumors are a heterogeneous group of cutaneous neoplasms, which may show a wide range of histogenesis. We report the clinicopathological features of an agminated clear cell tumor, arising in a 67-year-old man, otherwise asymptomatic, with distinct histopathological and immunohistochemical features, which did not fit into any existing diagnostic categories. The patient presented with several skin-colored papules at the lateral and posterior aspects of the neck, which on histopathological examination showed circumscribed lobular aggregates of clear cells within the dermis...
October 28, 2016: American Journal of Dermatopathology
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