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Cytokines Promote Angiogenesis

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https://www.readbyqxmd.com/read/28423685/tumor-fibroblast-interactions-stimulate-tumor-vascularization-by-enhancing-cytokine-driven-production-of-mmp9-by-tumor-cells
#1
Michelle Limoge, Alfiya Safina, Amy Beattie, Lauren Kapus, Alexander M Truskinovsky, Andrei V Bakin
Advance-stage breast carcinomas include significant amounts of fibroblasts and infiltrating immune cells which have been implicated in tumor growth, recurrence, and response to therapy. The present study investigated the contribution of fibroblasts to tumor growth using direct tumor-fibroblast co-cultures and tumor xenograft models. Our findings revealed that fibroblasts enhance breast carcinoma growth by promoting the tumor vasculature via the MMP9-dependent mechanism. In tumor-fibroblast co-cultures, fibroblasts increased expression of TGF-β, TNF, and IL-1β cytokines in tumor cells...
March 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28414157/commiphora-molmol-resin-attenuates-diethylnitrosamine-phenobarbital-induced-hepatocarcinogenesis-by-modulating-oxidative-stress-inflammation-angiogenesis-and-nrf2-are-ho-1-signaling
#2
Ayman M Mahmoud, Amr R Zaki, Manal E Hassan, Gomaa Mostafa-Hedeab
The objective of the current study was to investigate the possible chemopreventive activity of Commiphora molmol resin (myrrh) extract using a rat model of diethylnitrosamine (DEN)/phenobarbital (PB)-induced early stage hepatocarcinogenesis. Here, we pointed to the modulatory effect of myrrh on oxidative stress, angiogenesis, inflammation and nuclear factor (erythroid-derived 2)-like 2 (Nrf2). Hepatocarcinogenesis was induced in Wistar rats using DEN for initiation and PB as a promoting agent. The rats received 125 or 250 mg/kg C...
April 14, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28405776/immune-mediated-and-hypoxia-regulated-programs-accomplices-in-resistance-to-anti-angiogenic-therapies
#3
Diego O Croci, Santiago P Mendez-Huergo, Juan P Cerliani, Gabriel A Rabinovich
In contrast to mechanisms taking place during resistance to chemotherapies or other targeted therapies, compensatory adaptation to angiogenesis blockade does not imply a mutational alteration of genes encoding drug targets or multidrug resistance mechanisms but instead involves intrinsic or acquired activation of compensatory angiogenic pathways. In this article we highlight hypoxia-regulated and immune-mediated mechanisms that converge in endothelial cell programs and preserve angiogenesis in settings of vascular endothelial growth factor (VEGF) blockade...
April 13, 2017: Handbook of Experimental Pharmacology
https://www.readbyqxmd.com/read/28404865/dual-angiopoietin-2-and-vegfa-inhibition-elicits-antitumor-immunity-that-is-enhanced-by-pd-1-checkpoint-blockade
#4
Martina Schmittnaegel, Nicolò Rigamonti, Ece Kadioglu, Antonino Cassará, Céline Wyser Rmili, Anna Kiialainen, Yvonne Kienast, Hans-Joachim Mueller, Chia-Huey Ooi, Damya Laoui, Michele De Palma
Pathological angiogenesis is a hallmark of cancer and a therapeutic target. Vascular endothelial growth factor A (VEGFA) and angiopoietin-2 (ANGPT2; also known as ANG2) are proangiogenic cytokines that sustain tumor angiogenesis and limit antitumor immunity. We show that combined ANGPT2 and VEGFA blockade by a bispecific antibody (A2V) provided superior therapeutic benefits, as compared to the single agents, in both genetically engineered and transplant tumor models, including metastatic breast cancer (MMTV-PyMT), pancreatic neuroendocrine tumor (RIP1-Tag2), and melanoma...
April 12, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28402255/chemotherapy-and-plasma-adipokines-level-in-patients-with-colorectal-cancer
#5
Grzegorz Słomian, Elżbieta Świętochowska, Grzegorz Nowak, Krystyna Pawlas, Aleksandra Żelazko, Przemysław Nowak
Adipokines are molecules produced and secreted by adipose tissue and are linked to multiple malignancies. Adipokines can suppress or promote particular cell behaviors in different types of cancer. The aim of this study was to investigate the impact of chemotherapy on select adipokines in patients with colorectal cancer (CRC). Blood samples were collected from 42 patients with pathologically documented advanced CRC, who required palliative chemotherapy. Leptin, adiponectin, resistin and visfatin levels were measured by ELISA before and 3 months after the administration of chemotherapy...
April 12, 2017: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/28395533/the-influence-of-occupational-chronic-lead-exposure-on-the-levels-of-selected-pro-inflammatory-cytokines-and-angiogenic-factors
#6
A Machoń-Grecka, M Dobrakowski, M Boroń, G Lisowska, A Kasperczyk, S Kasperczyk
The aim of the study was to determine the effect of occupational exposure to lead on the blood levels of pro-inflammatory cytokines and selected factors that influence angiogenesis. The study population was divided into two groups. The first group consisted of 56 male workers chronically exposed to lead. The second group (control) was comprised of 24 male administrative workers. The serum levels of interleukin 1β (IL-1β), interleukin 6 (IL-6), and tumor necrosis factor α (TNF-α) were significantly higher in the group of workers chronically exposed to lead compared to control values by 38%, 68%, and 57%, respectively...
January 1, 2017: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/28386230/role-of-nadph-oxidase-4-in-human-endothelial-progenitor-cells
#7
Nora Y Hakami, Amaresh K Ranjan, Anandwardhan A Hardikar, Greg J Dusting, Hitesh M Peshavariya
Introduction: Endothelial progenitor cells (EPCs) display a unique ability to promote angiogenesis and restore endothelial function in injured blood vessels. NADPH oxidase 4 (NOX4)-derived hydrogen peroxide (H2O2) serves as a signaling molecule and promotes endothelial cell proliferation and migration as well as protecting against cell death. However, the role of NOX4 in EPC function is not completely understood. Methods: EPCs were isolated from human saphenous vein and mammary artery discarded during bypass surgery...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28383711/synergistic-effect-of-regulatory-t-cells-and-proinflammatory-cytokines-in-angiogenesis-in-the-endometriotic-milieu
#8
Xiao-Qiu Wang, Wen-Jie Zhou, Xue-Zhen Luo, Yu Tao, Da-Jin Li
STUDY QUESTION: Do regulatory T cells (Tregs) contribute to angiogenesis in endometriosis? SUMMARY ANSWER: High levels of CCL17 and CCL22 cause the recruitment of Tregs, upregulate the immunosuppression of Tregs and, in turn, may promote angiogenesis in endometrial cells in synergy with proinflammatory cytokines. WHAT IS ALREADY KNOWN: The peritoneal fluid of patients with endometriosis has a higher percentage of Tregs than that of normal individuals; however, the regulatory role of Tregs in the disease remains unclear...
April 4, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28381401/programmed-cell-senescence-il-6-role-in-the-pituitary
#9
Melanie Sapochnik, Mariana Fuertes, Eduardo Arzt
IL-6 is a pleiotropic cytokine with multiple pathophysiological functions. As a key factor of the senescence secretome, it can promote tumorigenesis and cell proliferation but also exert tumor suppressive functions, depending on the cellular context. IL-6, as do other cytokines, plays important roles in function, growth and neuroendocrine responses of the anterior pituitary gland. The multiple actions of IL-6 on normal and adenomatous pituitary function, cell proliferation, angiogenesis and extracellular matrix remodeling indicate its importance in the regulation of the anterior pituitary...
April 5, 2017: Journal of Molecular Endocrinology
https://www.readbyqxmd.com/read/28379958/il-15-regulates-migration-invasion-angiogenesis-and-genes-associated-with-lipid-metabolism-and-inflammation-in-prostate-cancer
#10
Krizia Rohena-Rivera, María M Sánchez-Vázquez, Diana A Aponte-Colón, Ingrid S Forestier-Román, Mario E Quintero-Aguiló, Magaly Martínez-Ferrer
Prostate cancer (PCa) is the most commonly diagnosed non-cutaneous cancer. In the United States it is second leading cause of cancer related deaths in men. PCa is often treated via radical prostatectomy (RP). However, 15-30% of the patients develop biochemical recurrence (i.e. increased serum prostate specific antigen (PSA) levels). Interleukin-15 (IL-15) is a secreted cytokine found over expressed in patients with recurrence-free survival after RP. In our study, we aim to determine the role of IL-15 in PCa using in vitro and in vivo models, and gene expression analysis...
2017: PloS One
https://www.readbyqxmd.com/read/28377207/2-naphthoic-acid-ergosterol-ester-an-ergosterol-derivative-exhibits-anti-tumor-activity-by-promoting-apoptosis-and-inhibiting-angiogenesis
#11
Mingzhu Lin, Haijun Li, Yan Zhao, Enbo Cai, Hongyan Zhu, Yugang Gao, Shuangli Liu, He Yang, Lianxue Zhang, Guosheng Tang
Phytosterol is a natural component of vegetable oil and includes ergosterol (ER) and β-sitosterol. In this study, three new ergosterol monoester derivatives were obtained from the reflux reaction with ergosterol, organic acids (furoic acid, salicylic acid, and 2-naphthoic acid), EDCI, and DMAP in dichloromethane. The chemical structures were defined by IR and NMR. On the basis of the results, 2-naphthoic acid ergosterol ester (NE) had the highest tumor inhibition rate and was selected to study anti-tumor activity and its mechanism at doses of 0...
April 1, 2017: Steroids
https://www.readbyqxmd.com/read/28358372/tnf-%C3%AE-induced-lrg1-promotes-angiogenesis-and-mesenchymal-stem-cell-migration-in-the-subchondral-bone-during-osteoarthritis
#12
Yiyun Wang, Jiajia Xu, Xudong Zhang, Chuandong Wang, Yan Huang, Kerong Dai, Xiaoling Zhang
The incomplete understanding of aberrant neovascularization, which contributes to osteoarthritis suggests that additional modulators have yet to be identified. Our objective was to identify the role of Leucine-rich-alpha-2-glycoprotein1 (LRG1), a new regulator of pathogenic angiogenesis, in osteoarthritis progression and to develop effective treatment strategies. In this study, immunohistochemistry showed that LRG1 was increased in the subchondral bone and articular cartilage in anterior cruciate ligament transection (ACLT) mice...
March 30, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28356047/is-vegf-a-key-target-of-cotinine-and-other-potential-therapies-against-alzheimer-disease
#13
Valentin Echeverria, George E Barreto, Marco Ávila-Rodriguez, Vadim V Tarasov, Gjumrakch Aliev
The vascular endothelial growth factor (VEGF) is a neuroprotective cytokine that promotes neurogenesis and angiogenesis in the brain. In animal models, it has been shown that environmental enrichment and exercise, two non-pharmacological interventions that are beneficial decreasing the progression of Alzheimer disease (AD) and depressive-like behavior, enhance hippocampal VEGF expression and neurogenesis. Furthermore, the stimulation of VEGF expression promotes neurotransmission and synaptic plasticity processes such as neurogenesis...
March 29, 2017: Current Alzheimer Research
https://www.readbyqxmd.com/read/28350359/nf-%C3%AE%C2%BAb-signaling-in-gastric-cancer
#14
REVIEW
Michael Naumann, Olga Sokolova
Gastric cancer is a leading cause of cancer death worldwide. Diet, obesity, smoking and chronic infections, especially with Helicobacter pylori, contribute to stomach cancer development. H. pylori possesses a variety of virulence factors including encoded factors from the cytotoxin-associated gene pathogenicity island (cagPAI) or vacuolating cytotoxin A (VacA). Most of the cagPAI-encoded products form a type 4 secretion system (T4SS), a pilus-like macromolecular transporter, which translocates CagA into the cytoplasm of the host cell...
March 28, 2017: Toxins
https://www.readbyqxmd.com/read/28348171/the-identification-of-macrophage-enriched-glycoproteins-using-glycoproteomics
#15
Jelani C Zarif, Weiming Yang, James R Hernandez, Hui Zhang, Kenneth J Pienta
Prostate cancer is a leading cause of cancer-related deaths of men in the U.S. While localized disease is highly treatable by surgical resection and radiation, cancer that has metastasized remains incurable. Immune cells that primarily scavenge debris, promote prostate cancer angiogenesis and wound repair are M2 Macrophages. They are phenotypically similar to M2 tumor-associated macrophages (M2-TAMs) have been reported to associate with solid tumors and aide in proliferation, metastasis, and resistance to therapy...
March 27, 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/28337277/effect-and-mechanism-of-shed-on-ulcer-wound-healing-in-sprague-dawley-rat-models-with-diabetic-ulcer
#16
Yue Lv, Lihong Ge, Yuming Zhao
To evaluate the effect of stem cells from human exfoliated deciduous teeth (SHED) upon the ulcer wound healing and evaluate the mechanism underlying the role of SHED in Sprague-Dawley rat models with diabetic foot ulcer. The rats with diabetic ulcer were established and treated with SHED, mesenchymal stem cell (MSC) and PBS, respectively. The expression of vascular endothelial growth factor (VEGF), endothelial nitric oxide synthase (eNOS), matrix metalloproteinase-2 (MMP-2) and MMP9 at both protein and RNA levels was quantitatively measured...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28335793/thrombus-leukocytes-exhibit-more-endothelial-cell-specific-angiogenic-markers-than-peripheral-blood-leukocytes-do-in-acute-coronary-syndrome-patients-suggesting-a-possibility-of-trans-differentiation-a-comprehensive-database-mining-study
#17
Hangfei Fu, Nish Vadalia, Eric R Xue, Candice Johnson, Luqiao Wang, William Y Yang, Claudette Sanchez, Jun Nelson, Qian Chen, Eric T Choi, Jian-Xing Ma, Jun Yu, Hong Wang, Xiaofeng Yang
BACKGROUND: Current angiogenic therapies for cancers and cardiovascular diseases have not yet achieved expected benefits, which reflects the need for improved understanding of angiogenesis. In this study, we focused on solving the problem of whether tissues have different angiogenic potentials (APs) in physiological conditions and how angiogenesis is regulated in various disease conditions. METHODS: In healthy and diseased human and mouse tissues, we profiled the expression of 163 angiogenic genes, including transcription regulators (TRs), growth factors and receptors (GF/Rs), cytokines and chemokines (C/Cs), and proteases and inhibitors (P/Is)...
March 23, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28302404/mesenchymal-stem-cells-derived-mfg-e8-accelerates-diabetic-cutaneous-wound-healing
#18
Akihiko Uchiyama, Sei-Ichiro Motegi, Akiko Sekiguchi, Chisako Fujiwara, Buddhini Perera, Sachiko Ogino, Yoko Yokoyama, Osamu Ishikawa
BACKGROUND: Diabetic wounds are intractable due to complex factors, such as the inhibition of angiogenesis, dysfunction of phagocytosis by macrophages and abnormal inflammatory responses. It is recognized that mesenchymal stem cells (MSCs) promote wound healing in diabetic mice. We previously demonstrated that MSCs produce large amounts of MFG-E8. OBJECT: The objective was to ascertain the role of MSCs-derived MFG-E8 in murine diabetic wounds. METHODS: MFG-E8 WT/KO MSCs or rMFG-E8 were subcutaneously injected around the wound in diabetic db/db mice, and wound areas were analyzed...
March 6, 2017: Journal of Dermatological Science
https://www.readbyqxmd.com/read/28295786/stat3-potentiates-the-ability-of-airway-smooth-muscle-cells-to-promote-angiogenesis-by-regulating-vegf-signaling
#19
Jing Lv, Baohua Sun, Zhitao Mai, Mingming Jiang, Junfeng Du
Airway angiogenesis indicates the specific vascular structure remodeling that occurs in asthma. Airway smooth muscle (ASM) cells have been reported to be capable of promoting airway angiogenesis; however, the potential mechanism is yet not fully defined. Herein, we investigated the role of signal transducer and activator of transcription 3 (STAT3), in the progress of airway angiogenesis. Western blot analysis showed that STAT3 activation was aberrantly up-regulated in ASM tissues of patients with asthma and ASM cells that were exposed to cytokines to imitate the airway conditions in patients with asthma...
March 10, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/28288823/cadmium-induced-il-6-and-il-8-expression-and-release-from-astrocytes-are-mediated-by-mapk-and-nf-%C3%AE%C2%BAb-pathways
#20
Suttinee Phuagkhaopong, Dusadee Ospondpant, Thitima Kasemsuk, Nathawut Sibmooh, Sunhapas Soodvilai, Christopher Power, Pornpun Vivithanaporn
Chronic exposure to cadmium has been linked to brain cancers, learning disabilities and memory deficits. Previous studies of cadmium toxicity in the central nervous system report cadmium induces oxidative stress in neurons and astrocytes. In the peripheral system, cadmium promotes interleukin-6 (IL-6) and IL-8 production and release. Elevation of IL-6 expression is linked to the pathogenesis of neurodegenerative diseases and astrogliosis. IL-8 plays a role in angiogenesis of gliomas and neurodegenerative diseases...
March 10, 2017: Neurotoxicology
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