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macrophage and TAM

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https://www.readbyqxmd.com/read/28434946/hyperglycemia-induced-renal-p2x7-receptor-activation-enhances-diabetes-related-injury
#1
Robert I Menzies, John W R Booth, John J Mullins, Matthew A Bailey, Frederick W K Tam, Jill T Norman, Robert J Unwin
Diabetes is a leading cause of renal disease. Glomerular mesangial expansion and fibrosis are hallmarks of diabetic nephropathy and this is thought to be promoted by infiltration of circulating macrophages. Monocyte chemoattractant protein-1 (MCP-1) has been shown to attract macrophages in kidney diseases. P2X7 receptors (P2X7R) are highly expressed on macrophages and are essential components of pro-inflammatory signaling in multiple tissues. Here we show that in diabetic patients, renal P2X7R expression is associated with severe mesangial expansion, impaired glomerular filtration (≤40ml/min/1...
April 20, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28433198/tumor-promoting-role-of-anti-tumor-macrophages-in-tumor-microenvironment
#2
REVIEW
Kuntal Kanti Goswami, Tithi Ghosh, Sarbari Ghosh, Madhurima Sarkar, Anamika Bose, Rathindranath Baral
Recent advances in tumor biology demand detailed analysis of the complex interaction of tumor cells with their adjacent microenvironment (tumor stroma) to understand the various mechanisms involved in tumor growth and metastasis. Mononuclear phagocytes or macrophages, a type of innate immune cells, defend the organism against infection and injury. On the otherhand, tumor associated macrophages (TAMs) constitute a significant part of the tumor-infiltrating immune cells, have been linked to the growth, angiogenesis, and metastasis of a variety of cancers, most likely through polarization of TAMs to the M2 (alternative) phenotype...
April 13, 2017: Cellular Immunology
https://www.readbyqxmd.com/read/28429765/repolarizing-macrophages-improves-breast-cancer-therapy
#3
Luca Cassetta, Jeffrey W Pollard
Tumor-associated macrophages (TAMs) contribute to breast cancer progression and dissemination; TAM-targeting strategies aimed at their reprogramming show promising preclinical results. In a new report Guerriero and colleagues demonstrate that a novel HDAC Class IIa inhibitor, TMP195, can reprogram monocytes and macrophages in the tumor into cells able to sustain a robust CD8 T cell-mediated anti-tumoral immune response.
April 21, 2017: Cell Research
https://www.readbyqxmd.com/read/28427401/ki-67-protein-expression-and-tumor-associated-inflammatory-cells-macrophages-and-mast-cells-in-canine-colorectal-carcinoma
#4
M Woldemeskel, I Hawkins, L Whittington
BACKGROUND: Ki67 index, tumor associated macrophages (TAMs) and mast cells (MCs) are associated with malignancies in animal and human neoplasms including colorectal carcinomas (CRC). This has not been assessed in canine CRC. Given similar genetic abnormalities between human and canine CRC, we assessed Ki-67 and mitotic indices, TAMs and MC count (MCC) in canine CRC (n = 17). TAMs and MCC were compared with those in adenomas (n = 13) and control (n = 9). RESULTS: Ki-67 index in CRC (17...
April 20, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28427165/prognostic-significance-of-tumor-associated-macrophages-in-breast-cancer-a-meta-analysis-of-the-literature
#5
REVIEW
Xixi Zhao, Jingkun Qu, Yuchen Sun, Jizhao Wang, Xu Liu, Feidi Wang, Hong Zhang, Wen Wang, Xingcong Ma, Xiaoyan Gao, Shuqun Zhang
PURPOSE: Tumor associated macrophages (TAMs) are important prognostic factors and have been proved to be associated with the invasion and migration of various cancer. However, the relationship between TAMs and breast cancer outcomes remains unclear. EXPERIMENTAL DESIGN: Sixteen studies with a total of 4,541 breast cancer patients were included in this meta-analysis. Correlation of TAMs with overall survival (OS), disease-free survival(DFS), relapse-free survival (RFS), breast cancer special survival (BCSS) and clinicopathological features were analyzed...
February 25, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423676/tumor-associated-macrophages-promote-ezrin-phosphorylation-mediated-epithelial-mesenchymal-transition-in-lung-adenocarcinoma-through-fut4-ley-up-regulation
#6
Aman Wang, Chang Lu, Zhen Ning, Wei Gao, Yunpeng Xie, Ningning Zhang, Jinxiao Liang, Faisal S Abbasi, Qiu Yan, Jiwei Liu
Tumor-associated macrophages (TAMs) are key components of tumor microenvironment (TME) during tumorigenesis and progression. However, the role of TAMs in lung adenocarcinoma is still unclear. In this study, we aimed to clarify the mechanism underlying the crosstalk between TAMs and epithelial-mesenchymal transition (EMT) of lung adenocarcinoma. Fucosyltransferase IV (FUT4) and its synthetic cancer sugar antigen Lewis Y (LeY) was aberrantly elevated in various solid tumors, it plays critical role in the invasion and metastasis...
March 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28422875/jagged1-modulated-tumor-associated-macrophage-differentiation-predicts-poor-prognosis-in-patients-with-invasive-micropapillary-carcinoma-of-the-breast
#7
Hang Liu, Jingxuan Wang, Zhaoliang Liu, Le Wang, Shoujun Liu, Qingyuan Zhang
OBJECTIVES: Invasive micropapillary carcinoma of the breast (IMPC) constitutes a unique and aggressive subtype of breast cancer. We aimed to evaluate the prognostic significance of the Jagged1 (a ligand of the Notch pathway) expression, and infiltration density of tumor-associated macrophages (TAMs) in patients with IMPC. METHODS: Jagged1 expression and CD163+, CD68+ macrophage infiltration were evaluated by immunohistochemistry in 222 tumor samples, and the clinical significance was analyzed...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28420753/the-kinase-tpl2-activates-erk-and-p38-signaling-to-promote-neutrophilic-inflammation
#8
Kate Senger, Victoria C Pham, Eugene Varfolomeev, Jason A Hackney, Cesar A Corzo, Jenna Collier, Vivian W C Lau, Zhiyu Huang, Kajal Hamidzhadeh, Patrick Caplazi, Ivan Peng, A Francesca Setiadi, Ross Francis, Andres Paler-Martinez, Youngsu C Kwon, Vladimir Ramirez-Carrozzi, Yonglian Sun, Patricia W Grigg, Merone Roose-Girma, Surinder Jeet, Kai H Barck, Anna Pham, Naruhisa Ota, Connie Ha, Jeremy Stinson, Joseph Guillory, Lucinda Tam, Zora Modrusan, Claire Emson, Brent S McKenzie, Michael J Townsend, Richard A D Carano, Søren Warming, Domagoj Vucic, Jason DeVoss, Wyne P Lee, Jennie R Lill, Ali A Zarrin
Tumor progression locus 2 (TPL2; also known as MAP3K8) is a mitogen-activated protein kinase (MAPK) kinase kinase (MAP3K) that phosphorylates the MAPK kinases MEK1 and MEK2 (MEK1/2), which, in turn, activate the MAPKs extracellular signal-regulated kinase 1 (ERK1) and ERK2 (ERK1/2) in macrophages stimulated through the interleukin-1 receptor (IL-1R), Toll-like receptors (TLRs), or the tumor necrosis factor receptor (TNFR). We describe a conserved and critical role for TPL2 in mediating the effector functions of neutrophils through the activation of the p38 MAPK signaling pathway...
April 18, 2017: Science Signaling
https://www.readbyqxmd.com/read/28419443/loss-of-natural-killer-t-nkt-cells-promotes-pancreatic-cancer-in-lsl-kras-g12d-mice
#9
Naveena B Janakiram, Altaf Mohammed, Taylor Bryant, Rebekah Ritchie, Nicole Stratton, Lydgia Jackson, Stan Lightfoot, Doris M Benbrook, Adam Asch, Mark L Lang, Chinthalapally V Rao
Role of unique T cell population, Natural Killer T (NKT) cells which have similar functions like NK cells in PC is not yet evaluated. In order to address the regulatory roles of NKT cells on tumor progression through tumor-associated macrophages (TAM) and their production of microsomal prostaglandin E synthase-1 (mPGES-1) and 5-lipoxygenase (5-LOX) in (Kras)-driven pancreatic tumor (KPT) progression, we crossed CD1d(-/-) mice deficient in both iNKT and vNKT cells with the Kras(G12D) mice. Loss of NKT cells significantly increased pancreatic intraepithelial neoplasia lesions [PanINs] and also increased 5-LOX and mPGES-1 expressions in M2 type macrophages and cancer stem like cells in pancreatic tumors...
April 18, 2017: Immunology
https://www.readbyqxmd.com/read/28407783/exosomal-transfer-of-tumor-associated-macrophage-derived-mir-21-confers-cisplatin-resistance-in-gastric-cancer-cells
#10
Peiming Zheng, Lei Chen, Xiangliang Yuan, Qin Luo, Yi Liu, Guohua Xie, Yanhui Ma, Lisong Shen
BACKGROUND: Cisplatin-based chemotherapy is frequently used to treat advanced gastric cancer (GC). However, the resistance often occurs with the mechanisms being not well understood. Recently, emerging evidence indicates that tumor-associated macrophages (TAMs) play an important role in chemoresistance of cancer. As the important mediators in intercellular communications, exosomes secreted by host cells mediate the exchange of genetic materials and proteins to be involved in tumor aggressiveness...
April 13, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/28401653/selective-blockade-of-b7-h3-enhances-antitumour-immune-activity-by-reducing-immature-myeloid-cells-in-head-and-neck-squamous-cell-carcinoma
#11
Liang Mao, Teng-Fei Fan, Lei Wu, Guang-Tao Yu, Wei-Wei Deng, Lei Chen, Lin-Lin Bu, Si-Rui Ma, Bing Liu, Yansong Bian, Ashok B Kulkarni, Wen-Feng Zhang, Zhi-Jun Sun
Immature myeloid cells including myeloid-derived suppressor cells (MDSCs) and tumour-associated macrophages (TAMs) promote tumour growth and metastasis by facilitating tumour transformation and angiogenesis, as well as by suppressing antitumour effector immune responses. Therefore, strategies designed to reduce MDSCs and TAMs accumulation and their activities are potentially valuable therapeutic goals. In this study, we show that negative immune checkpoint molecule B7-H3 is significantly overexpressed in human head and neck squamous cell carcinoma (HNSCC) specimen as compared with normal oral mucosa...
April 11, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28401258/tumor-associated-myeloid-cells-as-guiding-forces-of-cancer-cell-stemness
#12
REVIEW
Antonio Sica, Chiara Porta, Alberto Amadori, Anna Pastò
Due to their ability to differentiate into various cell types and to support tissue regeneration, stem cells simultaneously became the holy grail of regenerative medicine and the evil obstacle in cancer therapy. Several studies have investigated niche-related conditions that favor stemness properties and increasingly emphasized their association with an inflammatory environment. Tumor-associated macrophages (TAMs) and myeloid-derived suppressor cells (MDSCs) are major orchestrators of cancer-related inflammation, able to dynamically express different polarized inflammatory programs that promote tumor outgrowth, including tumor angiogenesis, immunosuppression, tissue remodeling and metastasis formation...
April 11, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/28399391/cd163-positive-macrophages-within-the-tumor-stroma-are-associated-with-lymphangiogenesis-and-lymph-node-metastasis-in-oral-squamous-cell-carcinoma
#13
Yuko Yamagata, Hirofumi Tomioka, Kei Sakamoto, Kiyoshi Sato, Hiroyuki Harada, Tohru Ikeda, Kou Kayamori
PURPOSE: Increasing evidence shows that tumor stromal components, particularly tumor-associated macrophages (TAMs), play an important role in the tumor progression of various solid malignant tumor types. However, their roles in oral squamous cell carcinoma (OSCC) have not been fully elucidated. MATERIALS AND METHODS: Seventy human tongue OSCC samples were analyzed in the present study. Immunohistochemistry was used to investigate the correlations between the densities of CD68-, CD163-, and CD204-positive TAMs and clinicopathologic parameters...
March 18, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28393222/overexpression-of-rip140-suppresses-the-malignant-potential-of-hepatocellular-carcinoma-by-inhibiting-nf%C3%A2-%C3%AE%C2%BAb%C3%A2-mediated-alternative-polarization-of-macrophages
#14
Ying-Chun Hu, Zhu-Jun Yi, Yun Zhou, Pei-Zhi Li, Zuo-Jin Liu, Shi-Gang Duan, Jian-Ping Gong
Tumor-associated macrophages (TAMs) and their alternative activation contribute greatly to the development of hepatocellular carcinoma (HCC). Receptor-interacting protein 140 (RIP140) is widely expressed in macrophages and regulates macrophage-mediated energy metabolism, the inflammatory response and tumorigenesis. However, whether RIP140 is involved in the activation of TAMs has not been reported. In the present study, we determined the expression of RIP140 in macrophages after treatment with HCC-conditioned medium (HCM) for 24 h...
April 5, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28381274/role-of-tumour-associated-macrophages-in-oral-squamous-cells-carcinoma-progression-an-update-on-current-knowledge
#15
REVIEW
Maria Noel Marzano Rodrigues Petruzzi, Karen Cherubini, Fernanda Gonçalves Salum, Maria Antonia Zancanaro de Figueiredo
BACKGROUND: Oral squamous cell carcinoma (OSCC) accounts over 90% of malignant neoplasms of the oral cavity. This pathological entity is associated to a high mortality rate that has remained unchanged over the past decades. Tumour-associated macrophages (TAMs) are believed to have potential involvement in OSCC progression. However, the molecular networks involved in communication between stroma and cancer cells have not yet been fully elucidated. MAIN BODY: The role of M2 polarized cells in oral carcinogenesis is supported by a correlation between TAMs accumulation into OSCC stroma and poor clinical outcome...
April 5, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28380350/tumor-associated-macrophages-suppress-the-cytotoxic-activity-of-antimitotic-agents
#16
Oakley C Olson, Hyunjung Kim, Daniela F Quail, Emily A Foley, Johanna A Joyce
Antimitotic agents, including Taxol, disrupt microtubule dynamics and cause a protracted mitotic arrest and subsequent cell death. Despite the broad utility of these drugs in breast cancer and other tumor types, clinical response remains variable. Tumor-associated macrophages (TAMs) suppress the duration of Taxol-induced mitotic arrest in breast cancer cells and promote earlier mitotic slippage. This correlates with a decrease in the phosphorylated form of histone H2AX (γH2AX), decreased p53 activation, and reduced cancer cell death in interphase...
April 4, 2017: Cell Reports
https://www.readbyqxmd.com/read/28377059/design-synthesis-and-optimization-of-bis-amide-derivatives-as-csf1r-inhibitors
#17
Sreekanth A Ramachandran, Pradeep S Jadhavar, Sandeep K Miglani, Manvendra P Singh, Deepak P Kalane, Anil K Agarwal, Balaji D Sathe, Kakoli Mukherjee, Ashu Gupta, Srijan Haldar, Mohd Raja, Siddhartha Singh, Son M Pham, Sarvajit Chakravarty, Kevin Quinn, Sebastian Belmar, Ivan E Alfaro, Christopher Higgs, Sebastian Bernales, Francisco J Herrera, Roopa Rai
Signaling via the receptor tyrosine kinase CSF1R is thought to play an important role in recruitment and differentiation of tumor-associated macrophages (TAMs). TAMs play pro-tumorigenic roles, including the suppression of anti-tumor immune response, promotion of angiogenesis and tumor cell metastasis. Because of the role of this signaling pathway in the tumor microenvironment, several small molecule CSF1R kinase inhibitors are undergoing clinical evaluation for cancer therapy, either as a single agent or in combination with other cancer therapies, including immune checkpoint inhibitors...
March 24, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28377038/targeting-tumor-associated-macrophages-tams-via-nanocarriers
#18
REVIEW
Yuvraj Singh, Vivek Kumar Pawar, Jaya Gopal Meher, Kavit Raval, Animesh Kumar, Richa Shrivastava, Smrati Bhadauria, Manish K Chourasia
Recruitment of inflammatory cells to tumor has been well documented, with the most frequent inhabitants being macrophages termed as tumor associated macrophages, (TAMs). Their presence was thought to be an evidence of immune system initiating a fight response towards the tumor, i.e. immune surveillance. This is the case too initially, when TAMs majorly exhibit an M1 phenotype, but their continued presence in tumor microenvironment brings about their polarization to M2 phenotype, which not only participate in continued sustenance of existing tumor but also open up deleterious avenues for further progression and metastasis of cancer...
April 1, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28365229/the-role-of-interleukin-10-in-human-papilloma-virus-infection-and-progression-to-cervical-carcinoma
#19
REVIEW
Fernanda Costa Brandão Berti, Ana Paula Lombardi Pereira, Guilherme Cesar Martelossi Cebinelli, Kleber Paiva Trugilo, Karen Brajão de Oliveira
Although Human Papillomavirus (HPV) exerts a vital influence on cervical carcinogenesis, other factors influence the development of a squamous intraepithelial lesion (SIL) that may or not progress to cervical cancer. Among several cytokines, Interleukin 10 (IL-10) stands out as an important anti-inflammatory factor, leading to immune system evasion through an immunosuppressive state. In the cervical microenvironment, during different stages of HPV infection, IL-10 production can be induced and maintained by different cell sources, including infected keratinocytes, some subsets of dendritic cells (DC), tumor associated macrophages (TAM), T regulatory cells (Treg) and tumor cells...
March 23, 2017: Cytokine & Growth Factor Reviews
https://www.readbyqxmd.com/read/28352658/priming-is-key-to-effective-incorporation-of-image-guided-thermal-ablation-into-immunotherapy-protocols
#20
Matthew T Silvestrini, Elizabeth S Ingham, Lisa M Mahakian, Azadeh Kheirolomoom, Yu Liu, Brett Z Fite, Sarah M Tam, Samantha T Tucci, Katherine D Watson, Andrew W Wong, Arta M Monjazeb, Neil E Hubbard, William J Murphy, Alexander D Borowsky, Katherine W Ferrara
Focal therapies play an important role in the treatment of cancers where palliation is desired, local control is needed, or surgical resection is not feasible. Pairing immunotherapy with such focal treatments is particularly attractive; however, there is emerging evidence that focal therapy can have a positive or negative impact on the efficacy of immunotherapy. Thermal ablation is an appealing modality to pair with such protocols, as tumors can be rapidly debulked (cell death occurring within minutes to hours), tumor antigens can be released locally, and treatment can be conducted and repeated without the concerns of radiation-based therapies...
March 23, 2017: JCI Insight
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