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https://www.readbyqxmd.com/read/29339086/the-il-6-stat3-pathway-regulates-adhesion-molecules-and-cytoskeleton-of-endothelial-cells-in-thromboangiitis-obliterans
#1
Zheng Wei, Wenjing Jiang, Hengzhen Wang, Hali Li, Bo Tang, Bing Liu, Hongchi Jiang, Xueying Sun
Thromboangiitis obliterans (TAO) (also known as Buerger's disease) is an inflammatory vascular disease that predominantly affects small- and medium-sized blood vessels of extremities. Endothelial cells play critical roles in the initiation and progression of this disease, but the underlying mechanisms remain unclear. In the present study, we demonstrate that patients with TAO had significantly higher levels of interleukin-6 (IL-6), soluble intercellular adhesion molecule-1 (sICAM-1) and soluble vascular cell adhesion molecule-1 (sVCAM-1) in their plasmas, and the involved arterial tissues expressed higher levels of phosphorylated signal transducer and activator of transcription 3 (p-STAT3), ICAM-1 and VCAM-1...
January 12, 2018: Cellular Signalling
https://www.readbyqxmd.com/read/29331869/dietary-naringenin-supplementation-attenuates-experimental-autoimmune-encephalomyelitis-by-modulating-autoimmune-inflammatory-responses-in-mice
#2
Junpeng Wang, Ying Qi, Xinli Niu, Hua Tang, Simin Nikbin Meydani, Dayong Wu
Autoimmune disease is highly prevalent in humans. Since conventional therapies have limited efficacy and often come with significant side effects, nutrition may provide an alternative and complementary approach to improving autoimmune disorders. Naringenin, a flavonoid found in citrus fruits, has been shown to have anti-inflammatory and antioxidant properties. Using the experimental autoimmune encephalomyelitis (EAE), a rodent model of human multiple sclerosis, we determined the effect of dietary naringenin (0...
December 11, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/29331583/importins-%C3%AE-and-%C3%AE-signaling-mediates-endothelial-cell-inflammation-and-barrier-disruption
#3
Antony Leonard, Arshad Rahman, Fabeha Fazal
Nucleocytoplasmic shuttling via importins is central to the function of eukaryotic cells and an integral part of the processes that lead to many human diseases. In this study, we addressed the role of α and β importins in the mechanism of endothelial cell (EC) inflammation and permeability, important pathogenic features of many inflammatory diseases such as acute lung injury and atherosclerosis. RNAi-mediated knockdown of importin α4 or α3 each inhibited NF-κB activation, proinflammatory gene (ICAM-1, VCAM-1, and IL-6) expression, and thereby endothelial adhesivity towards HL-60 cells, upon thrombin challenge...
January 10, 2018: Cellular Signalling
https://www.readbyqxmd.com/read/29330144/kindlin-1-promotes-pulmonary-breast-cancer-metastasis
#4
Sana Sarvi, Hitesh Patel, Jun Li, Georgia L Dodd, Helen Creedon, Morwenna Muir, Jocelyn Ward, John C Dawson, Martin Lee, Jayne Culley, Donald M Salter, Andrew H Sims, Adam Byron, Valerie G Brunton
In breast cancer, increased expression of the cytoskeletal adaptor protein Kindlin-1 has been linked to increased risks of lung metastasis, but the functional basis is unknown. Here we show that in a mouse model of polyomavirus middle T antigen-induced mammary tumorigenesis, loss of Kindlin-1 reduced early pulmonary arrest and later development of lung metastasis. This phenotype relied on the ability of Kindlin-1 to bind and activate β integrin heterodimers. Kindlin-1 loss reduced α4 integrin-mediated adhesion of mammary tumor cells to the adhesion molecule VCAM-1 on endothelial cells...
January 12, 2018: Cancer Research
https://www.readbyqxmd.com/read/29328438/cynandione%C3%A2-a-inhibits-lipopolysaccharide-induced-cell-adhesion-via-suppression-of-the-protein-expression-of-vcam%C3%A2-1-in-human-endothelial-cells
#5
Keun Hyung Park, Jiyoung Kim, Eunjoo H Lee, Tae Hoon Lee
Cynandione A (CA) is one of the most active compounds in the roots of Cynanchum wilfordii, the extracts of which have been used extensively in East Asia to treat various diseases including anti‑ischemic stroke. In the present study, the anti‑adherent activity of CA in lipopolysaccharide (LPS)‑stimulated human umbilical vascular endothelial cells (HUVECs) was investigated. CA markedly reduced the expression of vascular adhesion molecule‑1 (VCAM‑1) by LPS in HUVECs. The results also demonstrated that CA significantly reduced the expression of pro‑inflammatory and chemoattractant cytokines, including interleukin (IL)‑1β, IL‑6, IL‑8, monocyte chemoattractant protein‑1 and tumor necrosis factor‑α, in LPS‑activated human endothelial cells...
January 10, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29328400/microrna%C3%A2-146a-napdh-oxidase4-decreases-reactive-oxygen-species-generation-and-inflammation-in-a-diabetic-nephropathy-model
#6
Rong Jun Wan, Yue Hong Li
The present study investigated the role of microRNA (miR)‑146a in a diabetic nephropathy (DN) model, and its molecular mechanism. DN mice were given intraperitoneal injections of streptozotocin (55 mg/kg/day) for 5 consecutive days as an in vivo DN model. The HK‑2 human kidney cell line were exposed to 45% D‑glucose as an in vitro DN model. Firstly, it was demonstrated that miR‑146a expression was inhibited and NAPDH oxidase 4 (Nox4) was increased in DN mice. In HK‑2 cells, overexpression of miR‑146a inhibited Nox4 protein expression and decreased reactive oxygen species (ROS) generation, oxidative stress and inflammation, and suppressed vascular cell adhesion molecule‑1 (VCAM‑1) and intracellular adhesion molecule‑1 (ICAM‑1) protein expression...
January 9, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29325582/urinary-angiostatin-cxcl4-and-vcam-1-as-biomarkers-of-lupus-nephritis
#7
Chi Chiu Mok, Samar Soliman, Ling Yin Ho, Fatma A Mohamed, Faten Ismail Mohamed, Chandra Mohan
BACKGROUND: The aim was to study urinary angiostatin, CXC chemokine ligand 4 (CXCL4) and vascular cell adhesion molecule-1 (VCAM-1) as biomarkers of renal disease in systemic lupus erythematosus (SLE). METHOD: Patients who fulfilled ≥ 4 American College of Rheumatology (ACR) criteria for SLE with active renal, active non-renal or inactive disease, and a group of healthy controls were studied. Urine samples were assayed for angiostatin, CXCL4 and VCAM-1 by ELISA, and normalized by creatinine...
January 11, 2018: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/29324056/cardiopulmonary-effects-induced-by-occupational-exposure-to-titanium-dioxide-nanoparticles
#8
Lin Zhao, Yifang Zhu, Zhangjian Chen, Huadong Xu, Jingwen Zhou, Shichuan Tang, Zhizhen Xu, Fanling Kong, Xinwei Li, Yifei Zhang, Xianzuo Li, Ji Zhang, Guang Jia
Although some toxicological studies have reported that exposure to titanium dioxide nanoparticles (nano-TiO2) may elicit adverse cardiopulmonary effects, related data collected from human are currently limited. The purpose of this study is to explore cardiopulmonary effects among workers who were exposed to nano-TiO2 and to identify biomarkers associated with exposure. A cross-sectional study was conducted in a nano-TiO2 manufacturing plant in eastern China. Exposure assessment and characterization of TiO2 particles were performed in a packaging workshop...
January 11, 2018: Nanotoxicology
https://www.readbyqxmd.com/read/29320948/the-profiles-of-soluble-adhesion-molecules-in-the-great-obstetrical-syndromes
#9
Nikolina Docheva, Roberto Romero, Piya Chaemsaithong, Adi L Tarca, Gaurav Bhatti, Percy Pacora, Bogdan Panaitescu, Noppadol Chaiyasit, Tinnakorn Chaiworapongsa, Eli Maymon, Sonia S Hassan, Offer Erez
OBJECTIVE: The objective of this study was to determine the profiles of maternal plasma soluble adhesion molecules in patients with preeclampsia, small-for-gestational-age (SGA) fetuses, acute pyelonephritis, preterm labor with intact membranes (PTL), preterm prelabor rupture of the membranes (preterm PROM), and fetal death. MATERIALS AND METHODS: A cross-sectional study was conducted to determine maternal plasma concentrations of sE-selectin, sL-selectin, and sP-selectin as well as sICAM-1, sVCAM-1, and sPECAM-1 in patients with 1) an uncomplicated pregnancy (control, n = 100); 2) preeclampsia (n = 94); 3) SGA fetuses (in women without preeclampsia/hypertension, n = 45); 4) acute pyelonephritis (n = 25); 5) PTL (n = 53); 6) preterm PROM (n = 24); and 7) fetal death (n = 34)...
January 10, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29317710/chemokine-receptor-7-overexpression-promotes-mesenchymal-stem-cell-migration-and-proliferation-via-secreting-chemokine-ligand-12
#10
Ling Liu, Jian-Xiao Chen, Xi-Wen Zhang, Qin Sun, Lan Yang, Airan Liu, Shuling Hu, Fengmei Guo, Songqiao Liu, Yingzi Huang, Yi Yang, Hai-Bo Qiu
Great interest has been shown in mesenchymal stem cell (MSC) therapy in a wide variety of clinical domains. However, the therapeutic efficiency depends on the proliferation and migration of MSCs. Chemokine receptors are involved in regulating the proliferation and migration to the specific organs of MSCs in different microenvironments. CXC receptor seven (CXCR7), a newly discovered Chemokine ligand 12 (CXCL12) receptor, has organ specificity for tumour migration. We hypothesized that CXCR7 expression affects proliferation and migration of MSCs...
January 9, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29316619/radical-scavenging-and-anti-inflammatory-activities-of-representative-anthocyanin-groupings-from-pigment-rich-fruits-and-vegetables
#11
Federica Blando, Nadia Calabriso, Helge Berland, Gabriele Maiorano, Carmela Gerardi, Maria Annunziata Carluccio, Øyvind M Andersen
Anthocyanins, the naturally occurring pigments responsible for most red to blue colours of flowers, fruits and vegetables, have also attracted interest because of their potential health effects. With the aim of contributing to major insights into their structure-activity relationship (SAR), we have evaluated the radical scavenging and biological activities of selected purified anthocyanin samples (PASs) from various anthocyanin-rich plant materials: two fruits (mahaleb cherry and blackcurrant) and two vegetables (black carrot and "Sun Black" tomato), differing in anthocyanin content (ranging from 4...
January 6, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29305999/high-fat-diet-induced-obesityexacerbateshematopoiesis-deficiency-and-cytopenia-caused-by-5-fluorouracil-via-ppar-%C3%AE
#12
Yanhong Li, Shuai Zhu, Yuanyuan Zhang, Ting Liu, Linchong Su, Qiuping Zhang, Yubin Luo
The present study aims to investigate the influence of high fat diet (HFD) on hematopoietic system recovery under stress condition caused by 5-Fluouracil (5-Fu) and evaluate the alleviating benefit of PPAR-γ inhibition on aggravation of 5-Fu-induced toxicity under HFD condition. Survival rate of HFD or normal diet (ND) mice was monitored after 5-Fu injection. HSC and the progenitor cells in bone marrow were detected at various time points after 5-Fu administration by flow cytometry. Genes expression involved in stem cell and platelet proliferation were tested by RT-PCR...
January 3, 2018: Experimental Hematology
https://www.readbyqxmd.com/read/29302580/protective-effect-of-allium-tuberosum-extract-on-vascular-inflammation-in-tumor-necrosis-factor-%C3%AE-induced-human-vascular-endothelial-cells
#13
Haeng Jeon Hur, Ae Sin Lee
Background: Endothelial adhesion molecule expression induced by pro-inflammatory cytokine plays an important role in vascular endothelial cell injury, leading to vascular disease. Allium tuberosum (AT), which is used as a functional food, has a thrombolytic effect. It contains vitamin A, vitamin C, carbohydrate, calcium, iron, and phosphorus. There are many carotenes that turn into vitamin A in the body. Also, it helps blood circulation and stimulates metabolism. The purpose of the this study was to estimate the anti-inflammatory effects of the AT extract...
December 2017: Journal of Cancer Prevention
https://www.readbyqxmd.com/read/29301329/differential-characterization-of-temozolomide-resistant-human-glioma-cells
#14
Sheng-Wei Lai, Bor-Ren Huang, Yu-Shu Liu, Hsiao-Yun Lin, Chun-Chuan Chen, Cheng-Fang Tsai, Dah-Yuu Lu, Chingju Lin
Glioblastoma multiforme (GBM) is the most common type of primary and malignant tumor occurring in the adult central nervous system. Temozolomide (TMZ) has been considered to be one of the most effective chemotherapeutic agents to prolong the survival of patients with glioblastoma. Many glioma cells develop drug-resistance against TMZ that is mediated by increasing O-6-methylguanine-DNA methyltransferase (MGMT) levels. The expression of connexin 43 was increased in the resistant U251 subline compared with the parental U251 cells...
January 2, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29296832/a-unique-microenvironment-in-the-developing-liver-supports-the-expansion-of-megakaryocyte-progenitors
#15
Nathalie Brouard, Camille Jost, Nadine Matthias, Camille Albrecht, Sébastien Egard, Poojabahen Gandhi, Catherine Strassel, Tomoko Inoue, Daisuke Sugiyama, Paul J Simmons, Christian Gachet, Francois Lanza
The fetal liver is the site of a major expansion of the hematopoietic stem cell (HSC) pool and is also a privileged organ to study megakaryocyte progenitor differentiation. We identified in the mouse fetal liver at day 13.5 a discrete stromal cell population harboring a CD45-TER119-CD31-CD51+VCAM-1+PDGFRα- (V+P-) phenotype that lacked colony-forming unit fibroblast activity and harbored an hepatocyte progenitor signature. This previously undescribed V+P- population efficiently supported megakaryocyte production from mouse bone marrow HSC and human peripheral blood HSC-myeloid progenitors cultured in the presence of limited cytokine concentrations...
September 26, 2017: Blood Advances
https://www.readbyqxmd.com/read/29290808/dosimetric-evaluation-of-radionuclides-for-vcam-1-targeted-radionuclide-therapy-of-early-brain-metastases
#16
Nadia Falzone, Nicole L Ackerman, Liset de la Fuente Rosales, Mario A Bernal, Xiaoxuan Liu, Sarah Gja Peeters, Manuel Sarmiento Soto, Aurélien Corroyer-Dulmont, Myriam Bernaudin, Elisa Grimoin, Omar Touzani, Nicola R Sibson, Katherine A Vallis
Brain metastases develop frequently in patients with breast cancer, and present a pressing therapeutic challenge. Expression of vascular cell adhesion molecule 1 (VCAM-1) is upregulated on brain endothelial cells during the early stages of metastasis and provides a target for the detection and treatment of early brain metastases. The aim of this study was to use a model of early brain metastasis to evaluate the efficacy of α-emitting radionuclides, 149Tb, 211At, 212Pb, 213Bi and 225Ac; β-emitting radionuclides, 90Y, 161Tb and 177Lu; and Auger electron (AE)-emitters 67Ga, 89Zr, 111In and 124I, for targeted radionuclide therapy (TRT)...
2018: Theranostics
https://www.readbyqxmd.com/read/29288721/treatment-of-%C3%AE-thujaplicin-counteracts-di-2-ethylhexyl-phthalate-dehp-exposed-vascular-smooth-muscle-activation-inflammation-and-atherosclerosis-progression
#17
Mei Fen Shih, Kuang-Hung Pan, Chia-Chyuan Liu, Chia-Rui Shen, Jong Yuh Cherng
The initiation of atherosclerosis involves up-regulation of molecules such as E-selectin, VCAM-1, and ICAM-1. The progression of atherosclerosis is linked to proliferation and migration of vascular smooth muscle cell via MMP-2 and MMP-9 activities. However, the etiology of atherosclerosis concerning plasticizers is unknown. We evaluated β-thujaplicin in preventing the development of atherosclerosis in a model induced by pro-inflammatory cytokines. Moreover, we established a new atherosclerosis model in vascular smooth muscle cells (VSMC) exposed to a common contact plasticizer, di(2-ethylhexyl)phthalate (DEHP)...
December 27, 2017: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/29288710/hbp-induces-the-expression-of-monocyte-chemoattractant-protein-1-via-the-fak-pi3k-akt-and-p38-mapk-nf-%C3%AE%C2%BAb-pathways-in-vascular-endothelial-cells
#18
Mengling Chang, Feng Guo, Zengding Zhou, Xiaoqin Huang, Lei Yi, Yi Dou, Jingning Huan
Inflammation is characterized by early influx of polymorphonuclear neutrophils (PMNs), followed by a second wave of monocyte recruitment. PMNs mediate monocyte recruitment via their release of heparin binding protein (HBP), which activates CCR2 (CC-chemokine receptor 2) on monocytes. However, the pathways for such signal transmission remain unknown. Accumulating evidences have highlighted the importance of leukocyte-endothelial cell interactions in the initiation of inflammation. In this study, an interesting finding is that HBP enhances the secretion of monocyte chemotactic protein 1(MCP-1), ligand of CCR2, from a third party, the endothelial cells (ECs)...
December 27, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/29285650/synergistic-cytotoxicity-of-the-dipeptidyl-peptidase-iv-inhibitor-gemigliptin-with-metformin-in-thyroid-carcinoma-cells
#19
Si Hyoung Kim, Jun Goo Kang, Chul Sik Kim, Sung-Hee Ihm, Moon Gi Choi, Hyung Joon Yoo, Seong Jin Lee
PURPOSE: The influence of the dipeptidyl peptidase-IV inhibitor, gemigliptin alone or in combination with metformin on survival, proliferation, and migration of thyroid carcinoma cells was investigated. METHODS: SW1736 and TPC-1 human thyroid carcinoma cells were used. RESULTS: Gemigliptin and metformin caused cell death in a dose-dependent manner. In cells treated with both gemigliptin and metformin, compared with metformin alone, all of the combination index values were lower than 1...
December 28, 2017: Endocrine
https://www.readbyqxmd.com/read/29273735/the-opposing-forces-of-shear-flow-and-sphingosine-1-phosphate-control-marginal-zone-b-cell-shuttling
#20
Kerry Tedford, Michael Steiner, Stanislav Koshutin, Karin Richter, Laura Tech, Yannik Eggers, Inga Jansing, Kerstin Schilling, Anja Erika Hauser, Mark Korthals, Klaus-Dieter Fischer
Splenic marginal zone B cells (MZB) shuttle between the blood-filled marginal zone for antigen collection and the follicle for antigen delivery. However, it is unclear how MZBs migrate directionally from the marginal zone to the follicle. Here, we show that murine MZBs migrate up shear flow via the LFA-1 (αLβ2) integrin ligand ICAM-1, but adhere or migrate down the flow via the VLA-4 integrin (α4β1) ligand VCAM-1. MZBs lacking Arhgef6 (Pak-interacting exchange factor (αPIX)) or functional LFA-1 are impaired in shuttling due to mislocalization toward the VCAM-1-rich red pulp...
December 22, 2017: Nature Communications
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