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https://www.readbyqxmd.com/read/28551814/macrophage-derived-interleukin-1beta-promotes-human-breast-cancer-cell-migration-and-lymphatic-adhesion-in-vitro
#1
Sarah J Storr, Sabreena Safuan, Narmeen Ahmad, Mohammed El-Refaee, Andrew M Jackson, Stewart G Martin
Lymphovascular invasion (LVI), encompassing blood and lymphatic vessel invasion, is an important event in tumourigenesis. Macrophages within the tumour microenvironment are linked to the presence of LVI and angiogenesis. This study investigates the role of macrophage-derived, caspase-1-dependent interleukin-1beta (IL-1β) in an in vitro model of LVI. IL-1β significantly augmented the adhesion and transmigration of breast cancer cell lines MCF7 and MDA-MB-231 across endothelial cell barriers. MDA-MB-231 and MCF7 showed a higher percentage of adhesion to lymphatic endothelial cells than blood endothelial cells following endothelial cell IL-1β stimulation (P < 0...
May 27, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/28551799/mitochondria-and-angiogenesis
#2
Raluca Marcu, Ying Zheng, Brian J Hawkins
Angiogenesis is a dynamic and energy-consuming process, requiring endothelial cells to switch from a quiescent state to a migratory and proliferative phenotype in order to support the formation of new blood vessels. Despite their proximity to oxygenated blood endothelial cells are adept at utilizing glycolysis as an energy source to the detriment of mitochondrial oxidative phosphorylation. In this context, endothelial mitochondria have emerged as signaling hubs that modulate a wide range of endothelial functions, including angiogenesis, by coordinating reactive oxygen species and calcium signaling, metabolism and apoptosis...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28551771/synergistic-effects-of-chuanxiong-chishao-herb-pair-on-promoting-angiogenesis-at-network-pharmacological-and-pharmacodynamic-levels
#3
Yan Wang, Gang Guo, Bin-Rui Yang, Qi-Qi Xin, Qi-Wen Liao, Simon Ming-Yuen Lee, Yuan-Jia Hu, Ke-Ji Chen, Wei-Hong Cong
OBJECTIVE: To investigate the synergistic effects of Chuanxiong-Chishao herb-pair (CCHP) on promoting angiogenesis in silico and in vivo. METHODS: The mechanisms of action of an herb-pair, Chuanxiong- Chishao, were investigated using the network pharmacological and pharmacodynamic strategies involving computational drug target prediction and network analysis, and experimental validation. A set of network pharmacology methods were created to study the herbs in the context of targets and diseases networks, including prediction of target profiles and pharmacological actions of main active compounds in Chuanxiong and Chishao...
May 27, 2017: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/28551615/targeted-therapy-in-ovarian-cancer-a-comprehensive-systematic-review-of-literature
#4
REVIEW
Yasser Diab, Mustafa Zelal Muallem
BACKGROUND/AIM: We aimed to identify the most effectual groups of targeted therapies for ovarian cancer in recent clinical trials. MATERIALS AND METHODS: A systematic literature review has been gathered on an inventive study design that comprises of five steps. This involves search for pertinent publications from 2010 to date in various accessible medical data bases, usage of inclusion and exclusion, appraisal of quality of the studies included, abstraction of the relevant data and intelligible amalgamation of the data abridged in an evocative and narrative style...
June 2017: Anticancer Research
https://www.readbyqxmd.com/read/28551129/quantitative-determination-of-vegf165-in-cell-culture-medium-by-aptamer-sandwich-based-chemiluminescence-assay
#5
Siwen Shan, Ziyi He, Sifeng Mao, Mingsha Jie, Linglu Yi, Jin-Ming Lin
In this work, we have developed a sensitive and selective chemiluminescence (CL) assay for vascular endothelial growth factor (VEGF165) quantitative detection based on two specific VEGF165 binding aptamers (Apt). VEGF is a predominant biomarker in cancer angiogenesis, and sensitive detection method of VEGF are highly demanded for both academic study and clinical diagnosis of multiple cancers. In our experiment, VEGF165 was captured in a sandwich structure assembled by two binding aptamers, one capture aptamer was immobilized on streptavidin-coated magnetic beads (MBs) and another VEGF-binding aptamer was labeled by biotin for further phosphatase conjunction...
August 15, 2017: Talanta
https://www.readbyqxmd.com/read/28550177/role-of-thiosulfate-in-hydrogen-sulfide-dependent-redox-signaling-in-endothelial-cells
#6
Anna Leskova, Siblile Pardue, John D Glawe, Christopher G Kevil, Xinggui Shen
Recent reports have revealed that hydrogen sulfide (H2S) exerts critical actions to promote cardiovascular homeostasis and health. Thiosulfate (S2O3(2-)) is one of the products formed during oxidative H2S metabolism, and thiosulfate has been used extensively and safely to treat calcific uremic arteriopathy in dialysis patients. Yet despite its significance, fundamental questions regarding how thiosulfate and H2S interact during redox signaling remain unanswered. In this study, we examined the effect of exogenous thiosulfate on hypoxia-induced H2S metabolite bioavailability in human umbilical vein endothelial cells (HUVECs)...
May 26, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28550172/myocardial-overexpression-of-timp3-following-myocardial-infarction-exerts-beneficial-effects-through-promoting-angiogenesis-and-suppressing-early-proteolysis
#7
Abhijit Takawale, Pu Zhang, Abul Azad, Wang Wang, Xiuhua Wang, Allan G Murray, Zamaneh Kassiri
Myocardial infarction (MI) results in loss of cardiomyocytes, adverse extracellular matrix (ECM) and structural remodeling, left ventricular (LV) dilation and dysfunction. Tissue inhibitor of metalloproteinases (TIMPs) inhibit matrix metalloproteinases (MMPs), the main regulators of ECM turnover. TIMPs also have MMP-independent functions. TIMP3 levels are reduced in the heart within 24 hours of MI in mice. We investigated if overexpression of TIMP3 post-MI limits adverse remodeling, LV dilation and dysfunction...
May 26, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28549888/synthesis-of-n%C3%AE-vel-artemisinin-dimers-with-polyamine-linkers-and-evaluation-of-their-potential-as-anticancer-agents
#8
George E Magoulas, Tzoanna Tsigkou, Lina Skondra, Margarita Lamprou, Panagiota Tsoukala, Vassiliki Kokkinogouli, Evangelia Pantazaka, Dionissios Papaioannou, Constantinos M Athanassopoulos, Evangelia Papadimitriou
The natural product artemisinin and derivatives thereof are currently considered as the drugs of choice for the treatment of malaria. At the same time, a significant number of such drugs have also shown interesting anticancer activity. In the context of the present research work, artemisinin was structurally modified and anchored to naturally occurring polyamines to afford new artemisinin dimeric conjugates whose potential anticancer activity was evaluated. All artemisinin conjugates tested were more effective than artemisinin itself in decreasing the number of MCF7 breast cancer cells...
May 10, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28549801/methanolic-extract-of-boswellia-serrata-exhibits-anti-cancer-activities-by-targeting-microsomal-prostaglandin-e-synthase-1-in-human-colon-cancer-cells
#9
Tayebe Ranjbarnejad, Massoud Saidijam, Shirin Moradkhani, Rezvan Najafi
BACKGROUND: Colorectal cancer (CRC) is the most common cancer. A proper method to reduce mortality of CRC is chemoprevention to prevent initiation and promotion of intestinal tumorgenesis. One of the promising and developing chemopreventive agents is natural compounds found in plants. Frankincense, the resin extract from the Boswellia specious, has been used in traditional and modern medicine for treating various diseases with very minimal side effects. In the current study, we investigated the anti-cancer activity of methanolic extract of Boswellia serrata (B...
May 23, 2017: Prostaglandins & Other Lipid Mediators
https://www.readbyqxmd.com/read/28549096/the-molecular-mechanisms-of-obesity-paradox
#10
Alexios S Antonopoulos, Dimitris Tousoulis
Clinical observations suggest a complex relationship between human obesity and cardiovascular disease. Whilst abdominal (visceral) adiposity leads to deleterious metabolic disturbances, subcutaneous fat accumulation has a benign effect on cardiometabolic risk. Notably, an accumulating body of evidence paradoxically links increased body mass index with a better prognosis in patients with established cardiovascular disease, a finding that has been termed the 'obesity paradox'. While this is now acknowledged to be an epidemiological finding, a metabolically healthy obese group associated with low cardiovascular risk has also been identified...
May 26, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28548903/microenvironment-of-a-tumor-organoid-system-enhances-hepatocellular-carcinoma-malignancy-related-hallmarks
#11
Yang Wang, Kazuki Takeishi, Zhao Li, Eduardo Cervantes-Alvarez, Alexandra Collin de l'Hortet, Jorge Guzman-Lepe, Xiao Cui, Jiye Zhu
Organ-like microenviroment and 3-dimensional (3D) cell culture conformations have been suggested as promising approaches to mimic in a micro-scale a whole organ cellular functions and interactions present in vivo. We have used this approach to examine biologic features of hepatocellular carcinoma (HCC) cells. In this study, we demonstrate that hepatocellular carcinoma (HCC) cells, fibroblasts, endothelial cells and extracellular matrix can generate organoid-like spheroids that enhanced numerous features of human HCC observed in vivo...
May 26, 2017: Organogenesis
https://www.readbyqxmd.com/read/28548369/invadosomes-are-coming-new-insights-into-function-and-disease-relevance
#12
REVIEW
Elyse K Paterson, Sara A Courtneidge
Invadopodia and podosomes are discrete, actin-based molecular protrusions that form in cancer cells and normal cells respectively in response to diverse signaling pathways and extracellular matrix cues. Although they participate in a host of different cellular processes, they share a common functional theme of controlling pericellular proteolytic activity, which sets them apart from other structures that function in migration and adhesion, including focal adhesions, lamellipodia, and filopodia. In this review, we highlight research that explores the function of these complex structures, including roles for podosomes in embryonic and postnatal development, in angiogenesis and remodeling of the vasculature, in maturation of the post-synaptic membrane, in antigen sampling and recognition, and in cell-cell fusion mechanisms, as well as the involvement of invadopodia at multiple steps of the metastatic cascade, and how all of this may apply in the treatment of human disease states...
May 26, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28547979/association-of-infiltrating-cells-with-microvessel-density-in-oral-squamous-cell-carcinoma
#13
Olga Stasikowska-Kanicka, Małgorzata Wągrowska-Danilewicz, Marian Danilewicz
Several lines of evidence indicate that immune cells in the tumor microenvironment play an important role in regulating tumor progression. An immunohistochemical method was used to examine the abundance of natural killer (NK) cells, mucosal dendritic cells (DCs), macrophages, mast cells, and microvessel density in 78 cases of oral squamous cell carcinoma (OSCC): with better prognosis - OSCCBP (n = 37), and with poorer prognosis - OSCCPP (n = 41), and 18 controls. The mean numbers of macrophages and microvessels were significantly higher in the OSCCPP group in comparison to both OSCCBP and control groups...
2017: Polish Journal of Pathology: Official Journal of the Polish Society of Pathologists
https://www.readbyqxmd.com/read/28547835/application-of-omentum-as-an-in-vivo-bioreactor-for-regeneration-of-decellularized-human-internal-mammary-artery
#14
Reza Khorramirouz, Maryam Kameli, Sahar Eftekharzadeh, Abdol-Mohammad Kajbafzadeh
This study investigates the extent of cell seeding as well as lumen patency in acellular Internal mammary artery (IMA) scaffolds that have been re-cellularized by omentum as a natural bioreactor. Sixteen Virgin female Wistar rats were selected for implantation of acellular scaffold in omentum. Following laparotomy omentum was retracted to the outside of the abdomen and the more vascularized portion of it was selected for the experiment. The scaffold was wrapped by omentum and placed between two layers of rectus muscles that have been previously dissected...
May 25, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28547797/vitamin-d-receptor-agonists-regulate-ocular-developmental-angiogenesis-and-modulate-expression-of-dre-mir-21-and-vegf
#15
Stephanie L Merrigan, Breandán N Kennedy
BACKGROUND AND PURPOSE: Pathological growth of ocular vasculature networks can underpin visual impairment in neovascular age-related macular degeneration, proliferative diabetic retinopathy and retinopathy of prematurity. Our aim was to uncover novel pharmacological regulators of ocular angiogenesis by phenotype-based screening in zebrafish. EXPERIMENTAL APPROACH: A bioactive chemical library of 465 drugs was screened to identify small molecule inhibitors of ocular hyaloid vasculature (HV) angiogenesis in zebrafish larvae...
May 26, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28547789/erratum-quaking-is-a-key-regulator-of-endothelial-cell-differentiation-neovascularization-and-angiogenesis
#16
(no author information available yet)
No abstract text is available yet for this article.
June 2017: Stem Cells
https://www.readbyqxmd.com/read/28547570/the-effect-of-iloprost-on-cell-proliferation-and-angiogenesis-related-gene-expression-in-human-periodontal-ligament-cells
#17
Thanomsuk Jearanaiphaisarn, Teeranuch Sanharati, Prasit Pavasant, Chalida Nakalekha Limjeerajarus
Periodontal ligament is considered a rich source of mesenchymal stem cells for pulp regeneration. This study investigated the effect of iloprost, a prostacyclin analog, on cell proliferation and the expression of angiogenesis-related genes in human periodontal ligament cells (hPDLs) in vitro. The hPDLs were treated with 10(-9)-10(-6) M iloprost for 1, 6 and 24 h. Cell proliferation was determined by an MTT assay. Vascular endothelial growth factor (VEGF), alpha-1 type I collagen (COL1), and basic fibroblast growth factor (bFGF) mRNA expression were determined by semi-quantitative and qPCR...
May 25, 2017: Odontology
https://www.readbyqxmd.com/read/28546715/unusual-histology-in-hodgkin-s-lymphoma-report-of-an-interesting-case
#18
Sujata Jetley, Shaan Khetrapal, Mukta Pujani, Mohd Jaseem Hassan, Abhinav Jain
Hodgkin's lymphoma has a significant presence in the Indian subcontinent. Microscopically, the hallmark of Hodgkin's lymphoma (HL) is the Hodgkin and Reed-Sternberg (HRS) cell, which is usually surrounded by a cellular infiltrate of non-malignant inflammatory cells that constitute the majority of the tumor tissue. Cells which are known to be histologic mimics of HRS cells include immunoblasts, plasmablasts and rarely dendritic cells. We report a case of a 70-year-old male who presented with fever and lymphadenopathy...
June 2017: Indian Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28546532/regulation-of-c-jun-n-terminal-protein-kinase-jnk-pathway-in-apoptosis-of-endothelial-outgrowth-cells-induced-by-asymmetric-dimethylarginine
#19
Fu-Qing Zhang, Wei Lu, Wen-Xiao Yuan, Xin Li
BACKGROUND Endothelial outgrowth cells (EOCs) are terminal endothelial progenitor cells (EPCs). Asymmetric dimethylarginine (ADMA) has been identified as a novel risk factor for cardiovascular diseases. Our aim in the present study was to investigate the effect of regulation of asymmetric dimethylarginine (ADMA) on EOCs apoptosis and to explore the underlining mechanisms of c-Jun N-terminal protein kinase (JNK) pathway in the process. MATERIAL AND METHODS EOCs were harvested from umbilical cord blood and obtained by using density gradient centrifugation and adhesive culture methods...
May 26, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28546500/myeloid-derived-suppressor-cells-a-new-therapeutic-target-to-overcome-resistance-to-cancer-immunotherapy
#20
REVIEW
Jason A Chesney, Robert A Mitchell, Kavitha Yaddanapudi
Myeloid-derived suppressor cells (MDSCs) are a heterogeneous population of immature myeloid cells that accumulate during pathologic conditions, such as cancer. Patients diagnosed with advanced metastatic cancers have an average survival of 12-24 mo, a survival time that hasn't changed significantly in the past 30 yr. Despite some encouraging improvements in response rates and overall survival in patients receiving immunotherapies, such as immune checkpoint inhibitors, most patients will ultimately progress...
May 25, 2017: Journal of Leukocyte Biology
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