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CXCR7

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https://www.readbyqxmd.com/read/28454334/taxotere-induced-elevated-expression-of-il8-in-carcinoma-associated-fibroblasts-of-breast-invasive-ductal-cancer
#1
Yingliang Li, Guohua Rong, Hua Kang
Breast cancer is the most common malignant tumor in women worldwide, and accounts for an estimated 29% of new cases and 15% of cancer-associated mortalities each year. Invasive ductal carcinoma represents 70-80% of all breast cancer cases, which are responsible for the majority of breast cancer fatalities. Though great progress has been made in understanding the tumorigenesis and development of breast cancer, problems surrounding treatment persist. It was previously reported that carcinoma-associated fibroblasts (CAFs) may be closely associated with chemotherapy resistance...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28447575/adipose-derived-mesenchymal-stem-cells-from-the-elderly-exhibit-decreased-migration-and-differentiation-abilities-with-senescent-properties
#2
Meichen Liu, Hua Lei, Ping Dong, Xin Fu, Zhigang Yang, Ying Yang, Jiguang Ma, Xia Liu, Yilin Cao, Ran Xiao
Adipose-derived stem cells (ADSCs) can be applied extensively in the clinic because they can be easily isolated and cause less donor-site morbidity; however, their application can be complicated by patient-specific factors, such as age and harvest site. In this study, we systematically evaluated the effects of age on the quantity and quality of hADSCs isolated from excised chest subcutaneous adipose tissue and investigated the underlying molecular mechanism. hADSCs were isolated from donors of three different age groups (i...
April 26, 2017: Cell Transplantation
https://www.readbyqxmd.com/read/28431006/regulation-of-oxidized-platelet-lipidome-implications-for-coronary-artery-disease
#3
Madhumita Chatterjee, Dominik Rath, Jörg Schlotterbeck, Johannes Rheinlaender, Britta Walker-Allgaier, Nada Alnaggar, Monika Zdanyte, Iris Müller, Oliver Borst, Tobias Geisler, Tilman E Schäffer, Michael Lämmerhofer, Meinrad Gawaz
Aims: Hyperlipidaemia enhances susceptibility to thrombosis, while platelet oxidixed LDL (oxLDL) binding in acute coronary syndrome (ACS) correlates with activation status. This study explores the platelet lipidome in symptomatic coronary artery disease (CAD) patients and the functional consequences of the chemokine CXCL12 and its receptors CXCR-4/-7 on lipid uptake in platelets. Methods and results: Platelet-oxLDL detected by flow cytometry was enhanced (P = 0...
April 18, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28429395/shrna-knock-down-of-cxcr7-inhibits-tumour-invasion-and-metastasis-in-hepatocellular-carcinoma-after-transcatheter-arterial-chemoembolization
#4
Zhong-Wei Zhao, Xiao-Xi Fan, Jing-Jing Song, Min Xu, Min-Jiang Chen, Jian-Fei Tu, Fa-Zong Wu, Deng-Ke Zhang, Lu Liu, Li Chen, Xi-Hui Ying, Jian-Song Ji
To investigate the effects of lentiviral vector-mediated shRNA suppressing CXCR7 on tumour invasion and metastasis in hepatocellular carcinoma (HCC) after transcatheter arterial chemoembolization (TACE). HCCLM3 cell lines were cultured and assigned into the CXCR7-shRNA, negative control (NC) and blank groups. The qRT-PCR and Western blotting were applied to detect the mRNA and protein expressions of CXCR7, CXCR4 and MMP-2 in HCCLM3 cells. Cell proliferation and invasion were evaluated by MTT and Transwell assays...
April 21, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28387445/stimulation-of-oral-fibroblast-chemokine-receptors-identifies-ccr3-and-ccr4-as-potential-wound-healing-targets
#5
Jeroen Kees Buskermolen, Sanne Roffel, Susan Gibbs
The focus of this study was to determine which chemokine receptors are present on oral fibroblasts and whether these receptors influence proliferation, migration and/or the release of wound healing mediators. This information may provide insight into the superior wound healing characteristics of the oral mucosa. The gingiva fibroblasts expressed 12 different chemokine receptors (CCR3, CCR4, CCR6, CCR9, CCR10, CXCR1, CXCR2, CXCR4, CXCR5, CXCR7, CX3CR1 and XCR1), as analyzed by flow cytometry. Fourteen corresponding chemokines (CCL5, CCL15, CCL20, CCL22, CCL25, CCL27, CCL28, CXCL1, CXCL8, CXCL11, CXCL12, CXCL13, CX3CL1 and XCL1) were used to study the activation of these receptors on gingiva fibroblasts...
April 7, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28380526/inhibition-of-chemokine-c-x-c-motif-receptor-four-cxcr4-at-the-fetal-maternal-interface-during-early-gestation-in-sheep-alterations-in-expression-of-chemokines-angiogenic-factors-and-their-receptors
#6
K E Quinn, S Z Prosser, K K Kane, R L Ashley
<p>Chemokine (C-X-C motif) ligand 12 (CXCL12) and its receptor, chemokine (C-X-C motif) receptor 4 (CXCR4), are involved in significant biological processes associated with early pregnancy including increasing trophoblast invasion and stimulating placental vascularization. To further elucidate functions of CXCL12-CXCR4 signaling during early gestation, our objective was to inhibit CXCR4 in vivo using a CXCR4 antagonist, AMD3100. We hypothesized that inhibition of CXCR4 would negatively affect chemokine and angiogenic factor regulation imperative for placental development in sheep...
March 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28367523/stromal-cell-derived-factor-1-cxcr4-and-cxcr7-gene-transcripts-in-pterygia
#7
Shahram Bamdad, Behzad Khademi, Nooshin Chenari, Atta Taseh, Mahboobeh Razmkhah
PURPOSE: Pterygium is a pathologic process with angiogenic and tumor cell like characteristics. Chemokine and chemokine receptors may contribute to the formation and growth of pterygia. The aim of this study was to assess the expression of stromal cell derived factor (SDF)-1, as an angiogenic chemokine, and its receptors, CXCR4 and CXCR7, gene transcripts in pterygia. METHODS: RNA was extracted from tissue samples of 33 patients with primary pterygium and 35 volunteers with conjunctiva as the control group...
March 2017: Journal of Current Ophthalmology
https://www.readbyqxmd.com/read/28359053/platelets-as-a-novel-source-of-pro-inflammatory-chemokine-cxcl14
#8
Alexander Witte, Madhumita Chatterjee, Florian Lang, Meinrad Gawaz
OBJECTIVE: Platelets are a major source of chemokines. Here, we demonstrate for the first time that platelets express significant amounts of CXCL14 and disclose powerful effects of platelet-derived CXCL14 on monocyte and endothelial migration. METHODS: The expression of CXCL14 in platelets and in the supernatant of activated platelets was analysed by immunoblotting, ELISA, and flow cytometry. The effect of platelet-derived CXCL14 on monocyte migration was evaluated using a modified Boyden chamber...
March 29, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28322746/truncation-of-cxcl12-by-cd26-reduces-its-cxc-chemokine-receptor-4-and-atypical-chemokine-receptor-3-dependent-activity-on-endothelial-cells-and-lymphocytes
#9
Rik Janssens, Anneleen Mortier, Daiane Boff, Pieter Ruytinx, Mieke Gouwy, Bo Vantilt, Olav Larsen, Viktorija Daugvilaite, Mette M Rosenkilde, Marc Parmentier, Sam Noppen, Sandra Liekens, Jo Van Damme, Sofie Struyf, Mauro M Teixeira, Flávio A Amaral, Paul Proost
The chemokine CXCL12 or stromal cell-derived factor 1/SDF-1 attracts hematopoietic progenitor cells and mature leukocytes through the G protein-coupled CXC chemokine receptor 4 (CXCR4). In addition, it interacts with atypical chemokine receptor 3 (ACKR3 or CXCR7) and glycosaminoglycans. CXCL12 activity is regulated through posttranslational cleavage by CD26/dipeptidyl peptidase 4 that removes two NH2-terminal amino acids. CD26-truncated CXCL12 does not induce calcium signaling or chemotaxis of mononuclear cells...
March 18, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28295006/-impact-of-preoperative-drug-therapy-on-the-expression-of-angiogenesis-markers-in-colorectal-liver-metastases
#10
A V Varlamov, E M Pal'tseva, M I Sekacheva, O G Skipenko, D N Fedorov
AIM: to study changes in the expression of angio- and vasculogenesis markers in colorectal adenocarcinoma metastases to the liver during combined cytotoxic and targeted anti-VEGF therapy versus cytotoxic monotherapy. SUBJECTS AND METHODS: Intraoperative samples from 96 patients with colorectal adenocarcinomas metastases to the liver were immunohistochemically examined. The investigation enrolled patients who had preoperatively received either combined FOLFOX6 cytotoxic therapy and targeted anti-VEGF therapy with bevacizumab or only FOLFOX6 therapy, as well as patients who had not received preoperative anti-tumor drug treatment...
2017: Arkhiv Patologii
https://www.readbyqxmd.com/read/28287613/knockdown-of-long-non-coding-rna-xist-increases-blood-tumor-barrier-permeability-and-inhibits-glioma-angiogenesis-by-targeting-mir-137
#11
H Yu, Y Xue, P Wang, X Liu, J Ma, J Zheng, Z Li, Z Li, H Cai, Y Liu
Antiangiogenic therapy plays a significant role in combined glioma treatment. However, poor permeability of the blood-tumor barrier (BTB) limits the transport of chemotherapeutic agents, including antiangiogenic drugs, into tumor tissues. Long non-coding RNAs (lncRNAs) have been implicated in various diseases, especially malignant tumors. The present study found that lncRNA X-inactive-specific transcript (XIST) was upregulated in endothelial cells that were obtained in a BTB model in vitro. XIST knockdown increased BTB permeability and inhibited glioma angiogenesis...
March 13, 2017: Oncogenesis
https://www.readbyqxmd.com/read/28283801/serum-amyloid-a1-is-upregulated-in-human-glioblastoma
#12
Franciele Hinterholz Knebel, Miyuki Uno, Thais F Galatro, Luziane Potrich Bellé, Sueli Mieko Oba-Shinjo, Suely Kazue N Marie, Ana Campa
Serum amyloid A1 (SAA1) is a sensitive acute phase reactant primarily produced by the liver in response to acute inflammation. We have recently shown that SAA affects proliferation, migration, and invasion of glioblastoma cell lines, which suggest its participation in the malignant process. Consistently, levels of SAA have been used as a non-invasive biomarker for the prognosis of many cancers. In this study, we aimed to investigate SAA serum levels and expression of SAA genes in human astrocytomas tissues...
March 11, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28281844/cxcr7-as-a-chemokine-receptor-for-sdf-1-promotes-gastric-cancer-progression-via-mapk-pathways
#13
Ameng Shi, Haitao Shi, Lei Dong, Shaoxian Xu, Miao Jia, Xiaoyan Guo, Ting Wang
OBJECTIVE: As the alternate receptor for stromal cell-derived factor-1 (SDF-1) except CXCR4, CXCR7 has been shown to be involved in the progression of some malignancies. However, the role of SDF-1/CXCR7 in gastric cancer (GC) remains unclear. MATERIALS AND METHODS: CXCR7 expression was examined in 83 human GC tissues and adjacent non-cancer tissues (ANCTs) by immunohistochemistry, in three human GC cell lines (MGC-803, BGC-823 and SGC-7901) by reverse transcription-PCR and western blot...
June 2017: Scandinavian Journal of Gastroenterology
https://www.readbyqxmd.com/read/28255115/-expression-of-chemokine-cxcl12-and-its-receptor-cxcr4-and-cxcr7-in-different-molecular-subtypes-of-human-breast-carcinoma-and-the-clinical-significance
#14
Wei Wu, Liyuan Qian, Jing Dai, Boni Ding, Xuedong Chen
OBJECTIVE: To study the expressions and the clinical significance of chemokine CXCL12 and its receptor CXCR4, CXCR7 in the human breast carcinoma (BC) with different molecular subtypes.
 Methods: The mRNA expressions of CXCL12, CXCR4 and CXCR7 in tissues from 80 patients with different molecular subtype of BC were measured by qRT-PCR. The protein expressions of CXCL12, CXCR4 and CXCR7 in paraffin-embedded samples from 160 patients with different molecular subtypes were detected by immunohistochemical staining...
February 28, 2017: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/28253363/mutation-in-cpsf6-cfim68-cleavage-and-polyadenylation-specificity-factor-subunit-6-causes-short-3-utrs-and-disturbs-gene-expression-in-developing-embryos-as-revealed-by-an-analysis-of-primordial-germ-cell-migration-using-the-medaka-mutant-naruto
#15
Takao Sasado, Hisato Kondoh, Makoto Furutani-Seiki, Kiyoshi Naruse
Our previous studies analyzing medaka mutants defective in primordial germ cell (PGC) migration identified cxcr4b and cxcr7, which are both receptors of the chemokine sdf1/cxcl12, as key regulators of PGC migration. Among PGC migration mutants, naruto (nar) is unique in that the mutant phenotype includes gross morphological abnormalities of embryos, suggesting that the mutation affects a broader range of processes. A fine genetic linkage mapping and genome sequencing showed the nar gene encodes Cleavage and Polyadenylation Specificity Factor subunit 6 (CPSF6/CFIm68)...
2017: PloS One
https://www.readbyqxmd.com/read/28239742/the-role-of-the-sdf-1-cxcr7-axis-on-the-growth-and-invasion-ability-of-endometrial-cancer-cells
#16
Hong-Qin Gu, Zhen-Bo Zhang, Jia-Wen Zhang, Qian-Qian Wang, Xiao-Wei Xi, Yin-Yan He
PURPOSE: Stroma-derived factor-1 (SDF-1) and its receptor C-X-C chemokine receptor-4 (CXCR4) are involved in human endometrial carcinoma (EC) progression. CXCR7 is another important receptor of SDF-1 and has a higher affinity with SDF-1 compared with that of CXCR4. This paper aims to study the effects of the SDF-1/CXCR7 axis on the growth and invasion ability of EC cells. METHODS: CXCR7 expression was evaluated by quantitative RT-PCR, immunohistochemistry, immunocytochemistry and Western blotting in EC cell lines and 30 cases of primary EC tissue from patients...
February 27, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28188248/the-pivotal-role-of-cxcr7-in-stabilization-of-the-pulmonary-epithelial-barrier-in-acute-pulmonary-inflammation
#17
Kristian-Christos Ngamsri, Anika Müller, Hans Bösmüller, Jutta Gamper-Tsigaras, Jörg Reutershan, Franziska M Konrad
Acute pulmonary inflammation is still a frightening complication in intensive care units and has a high mortality. Specific treatment is not available, and many details of the pathomechanism remain unclear. The recently discovered chemokine receptor CXCR7 and its ligand stromal cell-derived factor (SDF)-1 are known to be involved in inflammation. We chose to investigate the detailed role of CXCR7 in a murine model of LPS inhalation. Inflammation increased pulmonary expression of CXCR7, and the receptor was predominantly expressed on pulmonary epithelium and on polymorphonuclear neutrophil (PMNs) after transepithelial migration into the alveolar space...
February 10, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28177527/effects-of-linagliptin-on-human-immortalized-podocytes-a-cellular-system-to-study-dipeptidyl-peptidase-4-inhibition
#18
Gianluca Miglio, Giovanna Vitarelli, Thomas Klein, Elisa Benetti
BACKGROUND AND PURPOSE: Dipeptidyl-peptidase 4 (DPP4) is expressed by resident renal cells, including glomerular cells. DPP4 inhibitors (gliptins) exert albuminuria lowering effects, but the role of renal DPP4 as a pharmacological target has not been elucidated. To better understand the actions of gliptins, the effects of linagliptin on the behaviour of immortalized human podocytes and mesangial cells were evaluated. EXPERIMENTAL APPROACH: The expression of DPP4 was measured at both the mRNA and protein levels...
May 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28154007/loss-of-endothelial-cxcr7-impairs-vascular-homeostasis-and-cardiac-remodeling-after-myocardial-infarction-implications-for-cardiovascular-drug-discovery
#19
Huifeng Hao, Sheng Hu, Hong Chen, Dawei Bu, Liyuan Zhu, Chuansheng Xu, Fei Chu, Xingyu Huo, Yue Tang, Xiaogang Sun, Bi-Sen Ding, De-Pei Liu, Shengshou Hu, Miao Wang
BACKGROUND: Genome-wide association studies identified the association of the CXCL12 genetic locus (which encodes the chemokine CXCL12, also known as stromal cell-derived factor 1) with coronary artery disease and myocardial infarction (MI). Unlike CXCR4, the classic receptor for CXCL12, the function of CXCR7 (the most recently identified receptor) in vascular responses to injury and in MI remains unclear. METHODS: Tissue expression of CXCR7 was examined in arteries from mice and humans...
March 28, 2017: Circulation
https://www.readbyqxmd.com/read/28137917/elevating-cxcr7-improves-angiogenic-function-of-epcs-via-akt-gsk-3%C3%AE-fyn-mediated-nrf2-activation-in-diabetic-limb-ischemia
#20
Xiaozhen Dai, Xiaoqing Yan, Jun Zeng, Jing Chen, Yuehui Wang, Jun Chen, Yan Li, Michelle T Barati, Kupper A Wintergerst, Kejian Pan, Matthew A Nystoriak, Daniel J Conklin, Gregg Rokosh, Paul N Epstein, Xiaokun Li, Yi Tan
RATIONALE: Endothelial progenitor cells (EPCs) respond to stromal cell-derived factor 1 (SDF-1) through chemokine receptors CXCR7 and CXCR4. Whether SDF-1 receptors involves in diabetes mellitus-induced EPCs dysfunction remains unknown. OBJECTIVE: To determine the role of SDF-1 receptors in diabetic EPCs dysfunction. METHODS AND RESULTS: CXCR7 expression, but not CXCR4 was reduced in EPCs from db/db mice, which coincided with impaired tube formation...
March 3, 2017: Circulation Research
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