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https://www.readbyqxmd.com/read/29136520/characterization-of-myeloid-cell-populations-in-human-testes-collected-after-sex-reassignment-surgery
#1
Rosalie Ponte, Franck P Dupuy, Fadi Brimo, Vikram Mehraj, Pierre Brassard, Maud Belanger, Ekaterina Yurchenko, Mohammad-Ali Jenabian, Nicole F Bernard, Jean-Pierre Routy
The testis has been described in animal models as a site of immune privilege, which protects spermatids against tissue damage during inflammation. Myeloid cells, including macrophages and dendritic cells (DC), are defined as key players in the testicular immune privilege in animal models. However, their distribution and frequency in human testis remain poorly described. To overcome the challenges related to tissue sampling, we obtained testicular tissue from men under hormonal therapy who elected to have sex reassignment surgery (SRS)...
October 14, 2017: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/29134671/macrophage-roles-in-the-clearance-of-apoptotic-cells-and-control-of-inflammation-in-the-prostate-gland-after-castration
#2
Juliete A F Silva, Alexandre Bruni-Cardoso, Taize M Augusto, Danilo M Damas-Souza, Guilherme O Barbosa, Sérgio L Felisbino, Dagmar R Stach-Machado, Hernandes F Carvalho
BACKGROUND: Androgen deprivation results in massive apoptosis in the prostate gland. Macrophages are actively engaged in phagocytosing epithelial cell corpses. However, it is unknown whether microtubule-associated protein 1 light chain 3 alpha (LC3)-associated phagocytosis (LAP) is involved and contribute to prevent inflammation. METHODS: Flow cytometry, RT-PCR and immunohistochemistry were used to characterize the macrophage subpopulation residing in the epithelial layer of the rat ventral prostate (VP) after castration...
November 14, 2017: Prostate
https://www.readbyqxmd.com/read/29133756/signal-transducer-and-activator-of-transcription-3-for-the-differentiation-of-hepatocellular-carcinoma-from-cirrhosis
#3
Yan-Ping Li, Wen-Ze Wang, Xue-Qi Chen, Ling-Bo Li, Zhi-Yong Liang, Kun Ru, Jing-Nan Li
BACKGROUND: Overexpression and constitutive activation of signal transducer and activator of transcription (STAT) 3 have been suggested in the tumorigenesis of many human cancers, including multiple carcinomas, melanoma, and lymphoma. The diagnosis of hepatocellular carcinoma (HCC) in lobectomy specimens is usually straightforward, but distinguishing cirrhosis from well-differentiated HCC can be challenging in core biopsies. Our aims were to investigate the expression level of STAT3 and phosphorylated STAT3 (pSTAT3) in HCC and cirrhosis, and the application of STAT3 in the differential diagnosis of HCC and cirrhosis...
November 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/29129494/osteoclast-like-giant-cells-in-invasive-breast-cancer-predominantly-possess-m2-macrophage-phenotype
#4
Ryuji Ohashi, Keiko Yanagihara, Shigeki Namimatsu, Takashi Sakatani, Hiroyuki Takei, Zenya Naito, Akira Shimizu
Breast carcinoma with osteoclast-like giant cells (OGCs) is a rare tumor; however, their clinicopathological aspects remain unclear. We described the clinicopathological characteristics of 8 patients with breast carcinoma with OGCs. Immuno-phenotypes of the OGCs were comparatively examined with that of foreign body giant cells (FBGCs) in 4 cases of granulomatous reaction (GR) without cancerous elements. In most cancers, tumors displayed cribriform and tubular growth patterns. Three cases showed moderate to high nuclear grade, while all the other tumors had low nuclear grade...
November 9, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/29123259/tumour-infiltrating-inflammatory-and-immune-cells-in-patients-with-extrahepatic-cholangiocarcinoma
#5
Yuki Kitano, Hirohisa Okabe, Yo-Ichi Yamashita, Shigeki Nakagawa, Yoichi Saito, Naoki Umezaki, Masayo Tsukamoto, Takanobu Yamao, Kensuke Yamamura, Kota Arima, Takayoshi Kaida, Tatsunori Miyata, Kosuke Mima, Katsunori Imai, Daisuke Hashimoto, Yoshihiro Komohara, Akira Chikamoto, Takatoshi Ishiko, Hideo Baba
BACKGROUND: Inflammation and immune characteristics of the tumour microenvironment have therapeutic significance. The aim of this study was to investigate the clinical impact on disease progression in human extrahepatic cholangiocarcinoma (ECC). METHODS: A total of 114 consecutive ECC patients with curative resection between 2000 and 2014 were enrolled. Tumour infiltrating CD66b(+) neutrophils (TANs; tumour associated neutrophils), CD163(+) M2 macrophages (TAMs; tumour associated macrophages), CD8(+) T cells, and FOXP3(+) regulatory T cells (Tregs) were assayed by immunohistochemistry, and their relationships with patient clinicopathological characteristics and prognosis were evaluated...
November 9, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/29121904/generation-of-murine-macrophage-derived-cell-lines-expressing-porcine-cd163-that-support-porcine-reproductive-and-respiratory-syndrome-virus-infection
#6
Liangliang Li, Chunyan Wu, Gaopeng Hou, Biyun Xue, Sha Xie, Qin Zhao, Yuchen Nan, Gaiping Zhang, En-Min Zhou
BACKGROUND: Porcine reproductive and respiratory syndrome virus (PRRSV) exhibits a highly restricted tropism for cells of the monocyte-macrophage lineage, utilizing porcine CD163 (pCD163) as an indispensable cellular receptor for infection. Transfection the gene of pCD163 into several non-permissive cell lines followed by protein expression confers susceptibility to PRRSV. A lack of specialized porcine antibody tools for use with existing porcine-derived primary cells and cell lines has hampered studies of both PRRSV pathogenesis and virus triggering of immune response cascades...
November 9, 2017: BMC Biotechnology
https://www.readbyqxmd.com/read/29112015/pd-l1-and-pd-l2-are-differentially-expressed-by-macrophages-or-tumor-cells-in-primary-cutaneous-diffuse-large-b-cell-lymphoma-leg-type
#7
Sarah Menguy, Martina Prochazkova-Carlotti, Marie Beylot-Barry, Fréderic Saltel, Béatrice Vergier, Jean-Philippe Merlio, Anne Pham-Ledard
As checkpoint molecules' inhibition may represent a therapeutic option in relapsing cases, we assessed programmed death ligands' (PD-L1/PD-L2) expression in a series of 29 primary cutaneous diffuse large B-cell lymphoma, leg-type (PCDLBCL-LT) cases. Double immunostaining for either PD-L1 or PD-L2 was associated either with PAX5 staining to evaluate tumor cells or with CD68 or CD163 staining for macrophages. The microenvironment of PCDLBCL-LT was characterized by immunostainings for CD3 (tumor-infiltrating lymphocytes), FOXP3 (regulatory T cells), programmed cell death-1, and CD33 (myeloid-derived suppressor cells)...
November 3, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/29110715/liraglutide-dictates-macrophage-phenotype-in-apolipoprotein-e-null-mice-during-early-atherosclerosis
#8
Robyn Bruen, Sean Curley, Sarina Kajani, Daniel Crean, Marcella E O'Reilly, Margaret B Lucitt, Catherine G Godson, Fiona C McGillicuddy, Orina Belton
BACKGROUND: Macrophages play a pivotal role in atherosclerotic plaque development. Recent evidence has suggested the glucagon-like peptide-1 receptor (GLP-1R) agonist, liraglutide, can attenuate pro-inflammatory responses in macrophages. We hypothesized that liraglutide could limit atherosclerosis progression in vivo via modulation of the inflammatory response. METHODS: Human THP-1 macrophages and bone marrow-derived macrophages, from both wild-type C57BL/6 (WT) and apolipoprotein E null mice (ApoE(-/-)) were used to investigate the effect of liraglutide on the inflammatory response in vitro...
November 6, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29110660/characterization-of-respiratory-dendritic-cells-from-equine-lung-tissues
#9
Yao Lee, Matti Kiupel, Gisela Soboll Hussey
BACKGROUND: Dendritic cells (DCs) are professional antigen-presenting cells that have multiple subpopulations with different phenotypes and immune functions. Previous research demonstrated that DCs have strong potential for anti-viral defense in the host. However, viruses including alphaherpesvirinae have developed strategies to interfere with the function or maturation of DCs, causing immune dysfunction and avoidance of pathogen elimination. The goal of the present study was to isolate and characterize equine lung-derived DCs (L-DCs) for use in studies of respiratory viruses and compare their features with equine blood-derived DCs (B-DCs), which are currently used for these types of studies...
November 6, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/29109719/phenotypic-characterization-of-human-monocytes-following-macronutrient-intake-in-healthy-humans
#10
Awad Alshahrani, Abdalmalik Bin Khunayfir, Mohammed Al Rayih, Hasan Al Sayed, Abdullah Alsadoon, Mohammed Al Dubayee, Mahmoud Zahra, Yousof Alrumayyan, Maha Al Zayer, Amre Nasr, Ahmad Aljada
Background: Three subsets of human monocytes in circulation have been identified and their characterization is still ill-defined. Although glucose and lipid intakes have been demonstrated to exert pro-inflammatory effects on mononuclear cells (MNCs) of healthy subjects, characterization of monocytes phenotypes following macronutrient (glucose, protein, and lipid) intake in humans remains to be determined. Methods: Thirty-six healthy, normal weight volunteers were recruited in the study...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29108105/t-cells-are-involve-in-the-induction-of-macrophage-phenotypes-in-oral-leukoplakia-and-squamous-cell-carcinoma-a-preliminary-report
#11
Olga Stasikowska-Kanicka, Małgorzata Wągrowska-Danilewicz, Marian Danilewicz
BACKGROUND: The prognosis of human malignancies has been shown to depend on immunological parameters, such as macrophage polarisation (M1 and M2). In the present study, we identify the phenotype of macrophages, and investigate an involvement of infiltrated T cells that participate in the polarization of macrophages, in oral leukoplakia (OLK), and oral squamous cell carcinoma (OSCC). METHODS: Immunohistochemical method was used to examine the number of CD68(+) , CD163(+) (M2), iNOS(+) (M1) macrophages, and CD4(+) , CD8(+) , CCR4(+) (Th2), CCR5(+) (Th1) cells in 102 cases of OSCC: without metastases - OSCC M(-) (n=54), and with metastases - OSCC M(+) (n=48), 23 cases of OLK, and 18 control cases...
November 6, 2017: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/29107632/keratin-biomaterials-augment-anti-inflammatory-macrophage-phenotype-in-vitro
#12
Michele Waters, Pamela VandeVord, Mark Van Dyke
Tissue regeneration following injury is mediated by macrophage recruitment and differentiation in response to environmental signals. In general, macrophages adopt either a classically (M[IFN-γ, LPS]) or alternatively activated (M[IL-4, IL-13] and M[IL-10]) phenotype. Recent studies have highlighted the importance of alternatively activated macrophages in tissue remodeling and repair as well as the contribution of an imbalance of classically and alternatively activated macrophages to tissue degeneration and disease progression...
October 28, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/29107084/evidence-for-m2-macrophages-in-granulomas-from-pulmonary-sarcoidosis-a-new-aspect-of-macrophage-heterogeneity
#13
Masoud Shamaei, Esmaeil Mortaz, Mihan Pourabdollah, Johan Garssen, Payam Tabarsi, Aliakbar Velayati, Ian M Adcock
BACKGROUND: Sarcoidosis is a granulomatous disease of unknown etiology. Macrophages play a key role in granuloma formation with the T cells, having a significant impact on macrophage polarization (M1 and M2) and the cellular composition of the granuloma. This study evaluates macrophage polarization in granulomas in pulmonary sarcoidosis. MATERIALS AND METHODS: Tissue specimens from the Department of Pathology biobank at the Masih Daneshvari Hospital were obtained...
October 26, 2017: Human Immunology
https://www.readbyqxmd.com/read/29101839/community-based-statins-and-advanced-carotid-plaque-role-of-cd163-positive-macrophages-in-lipoprotein-associated-phospholipase-a2-activity-in-atherosclerotic-plaque
#14
Fumiyuki Otsuka, XiaoQing Zhao, Hugh H Trout, Ye Qiao, Bruce A Wasserman, Masataka Nakano, Colin H Macphee, Martin Brandt, Sue Krug-Gourley, Liang Guo, Elena R Ladich, Qi Cheng, Harry R Davis, Aloke V Finn, Renu Virmani, Frank D Kolodgie
BACKGROUND AND AIMS: Lipoprotein-associated phospholipase A2 (Lp-PLA2), an enzymatic inflammatory biomarker primarily bound to low-density lipoprotein cholesterol, is associated with an approximate twofold increased risk of cardiovascular disease and stroke. Despite indications that circulating Lp-PLA2 is sensitive to statins, it remains largely unknown whether statin usage exerts local effects on Lp-PLA2 expression at the site of atheromatous plaque. METHODS: Carotid plaques (n = 38) were prospectively collected from symptomatic (n = 18) and asymptomatic (n = 20) patients with (n = 20) or without (n = 18) documented statin history...
October 14, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/29101376/antibiotics-induce-polarization-of-pleural-macrophages-to-m2-like-phenotype-in-patients-with-tuberculous-pleuritis
#15
Sisi Wang, Jian Zhang, Liyan Sui, Hao Xu, Qianling Piao, Ying Liu, Xinglong Qu, Ying Sun, Lei Song, Dan Li, Liping Peng, Shucheng Hua, Guangan Hu, Jianzhu Chen
Pleural macrophages play critical roles in pathogenesis of tuberculous pleuritis, but very little is known about their response to anti-tuberculosis antibiotics treatment. Here, we examined whether and how pleural macrophages change in phenotype, transcription and function following antibiotics treatment in patients with tuberculous pleuritis. Results show pro-inflammatory cytokines were down-regulated significantly post antibiotic treatment in the pleural effusions and pleural macrophages up-regulated markers characteristic of M2 macrophages such as CD163 and CD206...
November 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29100307/elevated-serum-interleukin-10-level-and-m2-macrophage-infiltration-are-associated-with-poor-survival-in-angioimmunoblastic-t-cell-lymphoma
#16
Jun Soo Ham, Ha Young Park, Kyung Ju Ryu, Young Hyeh Ko, Won Seog Kim, Seok Jin Kim
Interleukin-10 (IL-10) induces an immunosuppressive microenvironment including M2 macrophages, inhibiting anti-tumor immunity. The aim of this study was to evaluate whether serum IL-10 level at diagnosis and tissue infiltration of M2 macrophages could predict survival outcome of patients with angioimmunoblastic T-cell lymphoma (AITL). We measured serum levels of IL-5, IL-10, IL-12, and interferon-gamma (IFN-γ) at diagnosis in AITL and other common subtypes of nodal T-cell lymphoma including peripheral T-cell lymphoma, not otherwise specified (PTCL-NOS), ALK-negative anaplastic large cell lymphoma (ALCL) or ALK-positive ALCL between September 2008 and December 2014...
September 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/29100033/inflammation-is-regulated-by-the-adenosine-derivative-molecule-ifc-305-during-reversion-of-cirrhosis-in-a-ccl4-rat-model
#17
Rebeca Pérez-Cabeza de Vaca, Mariana Domínguez-López, Nuria Guerrero-Celis, Jesús R Rodríguez-Aguilera, Victoria Chagoya de Sánchez
Cirrhosis is a liver pathology originated by hepatocytes, Kupffer and hepatic stellate cells interactions and transformations. This pathology is associated with inflammation and fibrosis, originated by molecular signals secreted by immunological and parenchymal cells, such as cytokines and chemokines, like IL-1β, IL-6, TNF-α or MCP-1, driven by Kupffer cells signals. As part of inflammation resolution, the same activated Kupffer cells contribute to anti-inflammatory effects with IL-10 and MMP-9 secretion...
October 28, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29098727/bilateral-breast-keloids-in-an-elderly-woman-associated-with-bilateral-breast-cancers-and-high-concentration-of-serum-tumor-growth-factor-%C3%AE
#18
Masanobu Sakaguchi, Takeshi Fukumoto, Fumiyoshi Fujishima, Kaori Fukuda, Takeshi Kozaru, Masao Ban, Masahiro Oka
We report a case of bilateral annular breast keloids in a 72-year-old woman who had been suffering from bilateral breast cancers. Histopathologically, the keloids showed unique distribution of α-SMA+, CD34- myofibroblasts and α-SMA-, CD34+ fibroblasts depending on the region. High serum levels of tumor growth factor-β were detected at 6 months after the development of the breast keloids, but not at 10 months. CD163-positive cells were abundantly detected in the skin of the elevated portion of the keloids...
November 2017: Journal of Dermatology
https://www.readbyqxmd.com/read/29096690/tlr2-stimulation-impairs-anti-inflammatory-activity-of-m2-like-macrophages-generating-a-chimeric-m1-m2-phenotype
#19
Lilian Quero, Edveena Hanser, Tobias Manigold, André N Tiaden, Diego Kyburz
BACKGROUND: Toll-like receptors (TLRs) and macrophages play an important role in rheumatoid arthritis (RA). Currently, it is not clear whether inflammatory M1 or anti-inflammatory M2 predominate among the resident macrophages in the synovium. In the present study, we set out to investigate the impact of TLR stimulation on monocyte-derived M1 and M2 macrophage function and phenotype by mimicking the exposure to abundant TLR agonists as occurs in the context of RA. The response of macrophage subsets to TLR2 and TLR4 activation was evaluated on cluster of differentiation (CD) marker profile; cytokine secretion; gene expression; and NF-κB, interferon regulatory factors 3 and 7 (IRF3/7), and mitogen-activated protein kinase (MAPK) activation...
November 2, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/29094286/genome-editing-in-livestock-are-we-ready-for-a-revolution-in-animal-breeding-industry
#20
REVIEW
Jinxue Ruan, Jie Xu, Ruby Yanru Chen-Tsai, Kui Li
Genome editing is a powerful technology that can efficiently alter the genome of organisms to achieve targeted modification of endogenous genes and targeted integration of exogenous genes. Current genome-editing tools mainly include ZFN, TALEN and CRISPR/Cas9, which have been successfully applied to all species tested including zebrafish, humans, mice, rats, monkeys, pigs, cattle, sheep, goats and others. The application of genome editing has quickly swept through the entire biomedical field, including livestock breeding...
November 1, 2017: Transgenic Research
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