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https://www.readbyqxmd.com/read/29457790/cd163-macrophages-promote-angiogenesis-and-vascular-permeability-accompanied-by-inflammation-in-atherosclerosis
#1
Liang Guo, Hirokuni Akahori, Emanuel Harari, Samantha L Smith, Rohini Polavarapu, Vinit Karmali, Fumiyuki Otsuka, Rachel L Gannon, Ryan E Braumann, Megan H Dickinson, Anuj Gupta, Audrey L Jenkins, Michael J Lipinski, Johoon Kim, Peter Chhour, Paul S de Vries, Hiroyuki Jinnouchi, Robert Kutys, Hiroyoshi Mori, Matthew D Kutyna, Sho Torii, Atsushi Sakamoto, Cheol Ung Choi, Qi Cheng, Megan L Grove, Mariem A Sawan, Yin Zhang, Yihai Cao, Frank D Kolodgie, David P Cormode, Dan E Arking, Eric Boerwinkle, Alanna C Morrison, Jeanette Erdmann, Nona Sotoodehnia, Renu Virmani, Aloke V Finn
Intake of hemoglobin by the hemoglobin-haptoglobin receptor CD163 leads to a distinct alternative non-foam cell antiinflammatory macrophage phenotype that was previously considered atheroprotective. Here, we reveal an unexpected but important pathogenic role for these macrophages in atherosclerosis. Using human atherosclerotic samples, cultured cells, and a mouse model of advanced atherosclerosis, we investigated the role of intraplaque hemorrhage on macrophage function with respect to angiogenesis, vascular permeability, inflammation, and plaque progression...
February 19, 2018: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29457787/alternative-macrophages-in-atherosclerosis-not-always-protective
#2
Benoit Pourcet, Bart Staels
Atherosclerosis is a chronic inflammatory disease of the vasculature that is initiated by cholesterol deposition into the arterial wall, which triggers the infiltration of immune and inflammatory cells, including monocytes and macrophages. As atherosclerotic plaques progress, localized hypoxia promotes compensatory angiogenesis from the vasa vasorum. Immature neovessels are prone to leakage, thus destabilizing the plaque and leading to intraplaque hemorrhage. Macrophages with different phenotypes, ranging from classical inflammatory subtypes to alternatively activated antiinflammatory macrophages, have been identified in atherosclerotic lesions...
February 19, 2018: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29456715/protective-effect-of-vitexin-reduces-sevoflurane-induced-neuronal-apoptosis-through-hif-1%C3%AE-vegf-and-p38-mapk-signaling-pathway-in-vitro-and-in-newborn-rats
#3
Zhipai Lyu, Jing Cao, Ju Wang, Hongmei Lian
Previous studies have demonstrated that Vitexin possesses antihypertensive, anti-inflammatory and potential anticancer effects. The present study aimed to investigate whether the protective effect of vitexin protects against sevoflurane-induced neuronal apoptosis and the underlying mechanisms of this protective effect. The results demonstrated that Vitexin pretreatment significantly reduced neuronal apoptosis, and inhibited caspase-3 activity, apoptosis regulator BAX protein expression and malondialdehyde levels in sevoflurane-induced newborn rats...
March 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29456663/high-expression-of-sdf-1-and-vegf-is-associated-with-poor-prognosis-in-patients-with-synovial-sarcomas
#4
Qi Feng, Peng Guo, Jin Wang, Xiaoyu Zhang, Hui-Chai Yang, Jian-Gang Feng
Stromal cell-derived factor-1 (SDF-1) predicts poor clinical outcomes of certain types of cancer. Furthermore, vascular endothelial growth factor (VEGF) promotes the growth and metastasis of solid tumors. The aim of the present study was to examine the expression of SDF-1 and VEGF in patients with synovial sarcoma and to determine their expression is correlated with unfavorable outcomes. Levels of SDF-1 and VEGF proteins were evaluated in 54 patients with synovial sarcoma using immunohistochemical and immunofluorescence staining...
March 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29456650/application-of-an-acellular-dermal-matrix-to-a-rabbit-model-of-oral-mucosal-defects
#5
Xiangliang Xu, Nianhui Cui, Enbo Wang
Acellular dermal matrices (ADMs) are increasingly used for the restoration of soft-tissue defects of the oral cavity due to their ability to facilitate faster healing and reduce scar formation without rejection. However, few studies have focused on the histopathology and biological mechanisms involved in their use. The aim of the present study was to observe tissue growth, histopathologic changes and altered biomolecular signatures that occur during the repair of oral defects in rabbit models over time, either with or without the employment of ADM...
March 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29456539/generation-of-human-immunosuppressive-myeloid-cell-populations-in-human-interleukin-6-transgenic-nog-mice
#6
Asami Hanazawa, Ryoji Ito, Ikumi Katano, Kenji Kawai, Motohito Goto, Hiroshi Suemizu, Yutaka Kawakami, Mamoru Ito, Takeshi Takahashi
The tumor microenvironment contains unique immune cells, termed myeloid-derived suppressor cells (MDSCs), and tumor-associated macrophages (TAMs) that suppress host anti-tumor immunity and promote tumor angiogenesis and metastasis. Although these cells are considered a key target of cancer immune therapy, in vivo animal models allowing differentiation of human immunosuppressive myeloid cells have yet to be established, hampering the development of novel cancer therapies. In this study, we established a novel humanized transgenic (Tg) mouse strain, human interleukin (hIL)-6-expressing NOG mice (NOG-hIL-6 transgenic mice)...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29456507/the-effects-of-vitamin-d-supplementation-on-signaling-pathway-of-inflammation-and-oxidative-stress-in-diabetic-hemodialysis-a-randomized-double-blind-placebo-controlled-trial
#7
Hamed Haddad Kashani, Elahe Seyed Hosseini, Hossein Nikzad, Alireza Soleimani, Maryam Soleimani, Mohammad Reza Tamadon, Fariba Keneshlou, Zatollah Asemi
Objective: This study was carried out to determine the effects of vitamin D supplementation on signaling pathway of inflammation and oxidative stress in diabetic hemodialysis (HD) patients. Methods: This randomized double-blind placebo-controlled clinical trial was conducted among 60 diabetic HD patients. Subjects were randomly allocated into two groups to intake either vitamin D supplements at a dosage of 50,000 IU ( n = 30) or placebo ( n = 30) every 2 weeks for 12 weeks. Gene expression of inflammatory cytokines and biomarkers of oxidative stress were assessed in peripheral blood mononuclear cells (PBMCs) of diabetic HD patients with RT-PCR method...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29455659/receptor-tyrosine-kinases-and-downstream-pathways-as-druggable-targets-for-cancer-treatment-the-current-arsenal-of-inhibitors
#8
REVIEW
Wagner Ricardo Montor, Andrei Ronaldo Oliveira Silva Escartin Salas, Fabiana Henriques Machado de Melo
Searching for targets that allow pharmacological inhibition of cell proliferation in over-proliferative states, such as cancer, leads us to finely understand the complex mechanisms orchestrating the perfect control of mitosis number, frequency and pace as well as the molecular arrangements that induce cells to enter functional quiescence and brings them back to cycling in specific conditions. Although the mechanisms regulating cell proliferation have been described several years ago, never before has so much light been shed over this machinery as during the last decade when therapy targets have been explored and molecules, either synthetic or in the form of antibodies with the potential of becoming cancer drugs were produced and adjusted for specific binding and function...
February 19, 2018: Molecular Cancer
https://www.readbyqxmd.com/read/29455633/placental-growth-factor-vascular-endothelial-growth-factor-and-hypoxia-inducible-factor-1%C3%AE-in-the-placentas-of-women-with-preeclampsia
#9
Lobna E Ali, Magdi M Salih, Elhassan M Elhassan, Ahmed A Mohmmed, Ishag Adam
BACKGROUND: Although the exact mechanism of preeclampsia - high blood pressure and proteinuria after 20 gestational weeks - is not yet fully understood, placental growth factor (PLGF), vascular endothelial growth factor (VEGF) and hypoxia-inducible factor (HIF) are known to play important roles in vascularization and in the pathology of preeclampsia. METHODS: PLGF, VEGF and HIF-1α were evaluated by immunohistochemistry in the placentas of Sudanese women with mild or severe preeclampsia, and in normal controls...
February 18, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29455565/pulsed-dye-laser-versus-intense-pulsed-light-in-melasma-a-split-face-comparative-study
#10
Arwa M Hassan, Nashwa N Elfar, Omnia M Rizk, Nahed Y Eissa
BACKGROUND: Recent reports suggest that melasma may have a vascular component. Vascular targeting lasers and light treatment can be a therapeutic option that will provide benefits to the patients. OBJECTIVES: To compare between the efficacy and tolerability of pulsed dye laser and intense pulsed light in treatment of melasma. PATIENTS AND METHODS: 28 Egyptian female patients with melasma were treated with pulsed dye laser on the right hemiface (Group A) and with intense pulsed light on the left hemiface (Group B)...
February 19, 2018: Journal of Dermatological Treatment
https://www.readbyqxmd.com/read/29455108/ureaplasma-isolates-differentially-modulate-growth-factors-and-cell-adhesion-molecules-in-human-neonatal-and-adult-monocytes
#11
Kirsten Glaser, Christine Silwedel, Ana Maria Waaga-Gasser, Birgit Henrich, Markus Fehrholz, Heike Claus, Christian P Speer
Generally regarded as commensal bacteria, the pathogenicity of Ureaplasma has often been considered low. Controversy remains concerning the clinical relevance of Ureaplasma infection in the pathogenesis of inflammation-related morbidities. Recently, we demonstrated Ureaplasma-driven pro-inflammatory cytokine responses in human monocytes in vitro. We hypothesized that Ureaplasma may induce further inflammatory mediators. Using qRT-PCR and multi-analyte immunoassay, we assessed the expression of granulocyte-colony stimulating factor (G-CSF), vascular endothelial growth factor (VEGF), intercellular adhesion molecule 1 (ICAM-1) and vascular cell adhesion molecule 1 (VCAM-1) in term neonatal and adult monocytes exposed to Ureaplasma urealyticum serovar 8 (Uu8) and U...
February 15, 2018: Cytokine
https://www.readbyqxmd.com/read/29455003/combinatorial-strategy-of-epigenetic-and-hormonal-therapies-a-novel-promising-approach-for-treating-advanced-prostate-cancer
#12
Tarek K Motawi, Hebatallah A Darwish, Iman Diab, Maged W Helmy, Mohamed Noureldin
AIMS: Estrogens act as key factors in prostate biology, cellular proliferation and differentiation as well as cancer development and progression. The expression of estrogen receptor (ER)-β appears to be lost during prostate cancer progression through hypermethylation mechanism. Epigenetic drugs such as 5-aza-2'-deoxycytidine (5-AZAC) and Trichostatin A (TSA) showed efficacy in restoring ERβ expression in prostate cancer cells. This study was designed to explore the potential anti-carcinogenic effects resulting from re-expressing ERβ1 using 5-AZAC and/or TSA, followed by its stimulation with Diarylpropionitrile (DPN), a selective ERβ1 agonist, in prostate cancer cell line PC-3...
February 15, 2018: Life Sciences
https://www.readbyqxmd.com/read/29454659/predicting-visual-acuity-by-using-machine-learning-in-patients-treated-for-neovascular-age-related-macular-degeneration
#13
Markus Rohm, Volker Tresp, Michael Müller, Christoph Kern, Ilja Manakov, Maximilian Weiss, Dawn A Sim, Siegfried Priglinger, Pearse A Keane, Karsten Kortuem
PURPOSE: To predict, by using machine learning, visual acuity (VA) at 3 and 12 months in patients with neovascular age-related macular degeneration (AMD) after initial upload of 3 anti-vascular endothelial growth factor (VEGF) injections. DESIGN: Database study. PARTICIPANTS: For the 3-month VA forecast, 653 patients (379 female) with 738 eyes and an average age of 74.1 years were included. The baseline VA before the first injection was 0...
February 14, 2018: Ophthalmology
https://www.readbyqxmd.com/read/29454306/record-4-multicenter-phase-2-trial-of-second-line-everolimus-in-patients-with-metastatic-renal-cell-carcinoma-asian-versus-non-asian-population-subanalysis
#14
Lin Yang, Anna Alyasova, Dingwei Ye, Antonia Ridolfi, Luca Dezzani, Robert J Motzer
BACKGROUND: RECORD-4 assessed everolimus in patients with metastatic renal cell carcinoma (mRCC) who progressed after 1 prior anti-vascular endothelial growth factor (VEGF) or cytokine and reinforced the clinical benefit of second-line everolimus. Because of the high percentage of patients from China enrolled in RECORD-4 (41%) and some reported differences in responses to certain targeted agents between Chinese and Western patients, this subanalysis evaluated outcomes in Asian versus non-Asian patients...
February 17, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29454302/aerobic-exercise-inhibits-obesity-induced-respiratory-phenotype
#15
Jefferson Comin Jonco Aquino-Junior, BreAnne MacKenzie, Ana Roberta Almeida-Oliveira, Ana Carolina Martins, Manoel Carneiro Oliveira-Junior, Auriléa Aparecida Britto, Fernanda Magalhaes Arantes-Costa, Nilsa Regina Damaceno-Rodrigues, Elia Garcia Caldini, Ana Paula Ligeiro de Oliveira, Dioze Guadagnini, Luiz Osorio Leiria, Djalma Rabelo Ricardo, Mario Jose Abdalla Saad, Rodolfo Paula Vieira
PURPOSE: Obesity results in decreased lung function and increased inflammation. Moderate aerobic exercise (AE) reduced lung inflammation and remodeling in a variety of respiratory disease models. Therefore, this study investigated whether AE can attenuate a diet-induced obesity respiratory phenotype; including airway hyper-responsiveness (AHR), remodeling and inflammation. METHODS: Sixty C57Bl/6 male mice were distributed into four groups: control lean (CL), exercise lean (EL), obese (O) and obese exercise (OE) groups (2 sets of 7 and 8 mice per group; n = 15)...
February 14, 2018: Cytokine
https://www.readbyqxmd.com/read/29454091/anlotinib-inhibits-angiogenesis-via-suppressing-the-activation-of-vegfr2-pdgfr%C3%AE-and-fgfr1
#16
Binyan Lin, Xiuming Song, Dawei Yang, Dongsheng Bai, Yuyuan Yao, Na Lu
Tumor cells recruit vascular endothelial cells and circulating endothelial progenitor cells to form new vessels to support their own growth and metastasis. VEGF, PDGF-BB and FGF-2 are three major pro-angiogenic factors and applied to promote angiogenesis. In this research, we demonstrated that anlotinib, a potent multi-tyrosine kinases inhibitor (TKI), showed a significant inhibitory effect on VEGF/PDGF-BB/FGF-2-induced angiogenesis in vitro and in vivo. Wound healing assay, chamber directional migration assay and tube formation assay indicated that anlotinib inhibited VEGF/PDGF-BB/FGF-2-induced cell migration and formation of capillary-like tubes in endothelial cells...
February 14, 2018: Gene
https://www.readbyqxmd.com/read/29453608/chemopreventive-action-of-imatinib-a-tyrosine-kinase-inhibitor-in-the-regulation-of-angiogenesis-and-apoptosis-in-rat-model-of-lung-cancer
#17
Kulvinder Kumar, Preety Ghanghas, S N Sanyal
The present study explored the events of angiogenesis and apoptosis in 7,12-dimethyl benz(a)anthracene (DMBA)-induced lung cancer in rat and its chemoprevention with Imatinib, a receptor tyrosine kinase inhibitor. Further, it includes lipopolysaccharide (LPS) mediating inflammation along with DMBA for the promotion of lung carcinogenesis. The animals received a single intratracheal instillation of DMBA (20 mg/kg body weight) in olive oil and LPS (0.6 mg/kg body weight) to induce tumors in 16 weeks. Besides morphology and histology of the lung tissues, RT-PCR, western blots, and immunofluorescence were performed for the expression of apoptotic and angiogenic proteins...
February 16, 2018: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/29453401/endothelial-smoothened-dependent-hedgehog-signaling-is-not-required-for-sonic-hedgehog-induced-angiogenesis-or-ischemic-tissue-repair
#18
Rajesh Gupta, Alexander R Mackie, Sol Misener, Lijun Liu, Douglas W Losordo, Raj Kishore
Sonic Hedgehog (Shh) signaling induces neovascularization and angiogenesis. It is not known whether the hedgehog signaling pathway in endothelial cells is essential to angiogenesis. Smoothened (Smo) transduces hedgehog signaling across the cell membrane. This study assessed whether endothelial Smoothened-dependent Shh signaling is required for Shh-mediated angiogenesis and ischemic tissue repair. Endothelial-specific smoothened knockout mice, eSmo Null were created using Cre-lox recombination system. eSmo Null mice had no observable phenotype at baseline and showed normal cardiac function...
February 16, 2018: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/29452577/polymerase-delta-interacting-protein-2-deficiency-protects-against-blood-brain-barrier-permeability-in-the-ischemic-brain
#19
Marina S Hernandes, Bernard Lassègue, Lula L Hilenski, Jonathan Adams, Ning Gao, Chia-Yi Kuan, Yu-Yo Sun, Lihong Cheng, Daniel S Kikuchi, Manuel Yepes, Kathy K Griendling
BACKGROUND: Polymerase δ-interacting protein 2 (Poldip2) is a multifunctional protein that regulates vascular extracellular matrix composition and matrix metalloproteinase (MMP) activity. The blood-brain barrier (BBB) is a dynamic system assembled by endothelial cells, basal lamina, and perivascular astrocytes, raising the possibility that Poldip2 may be involved in maintaining its structure. We investigated the role of Poldip2 in the late BBB permeability induced by cerebral ischemia...
February 17, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29452450/-cost-comparison-of-licensed-intravitreal-therapies-for-insufficiently-anti-vegf-responding-fovea-involving-diabetic-macular-edema-in-germany
#20
Aljoscha S Neubauer, Christos Haritoglou, Michael W Ulbig
BACKGROUND: In the treatment of center-involving diabetic macular edema, despite initial therapy with an anti-VEGF compound, an insufficient response may occur. Further therapy options include a switch of anti-VEGF products or to corticosteroid implants, such as Fluocinolone acetonide or Dexamethasone. OBJECTIVES: Firstly, to investigate systematically which evidence-based study data are available describing the efficacy of in-label treatments after primary anti-VEGF treatment, secondly, to investigate which costs go along for the healthcare provider...
February 16, 2018: Klinische Monatsblätter Für Augenheilkunde
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