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CXCL12

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https://www.readbyqxmd.com/read/28535157/a-meta-analysis-of-cxcl12-expression-for-cancer-prognosis
#1
Harsh Samarendra, Keaton Jones, Tatjana Petrinic, Michael A Silva, Srikanth Reddy, Zahir Soonawalla, Alex Gordon-Weeks
BACKGROUND: CXCL12 (SDF1) is reported to promote cancer progression in several preclinical models and this is corroborated by the analysis of human tissue specimens. However, the relationship between CXCL12 expression and cancer survival has not been systematically assessed. METHODS: We conducted a systematic review and meta-analysis of studies that evaluated the association between CXCL12 expression and cancer survival. RESULTS: Thirty-eight studies inclusive of 5807 patients were included in the analysis of overall, recurrence-free or cancer-specific survival, the majority of which were retrospective...
May 23, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28533662/cxcr7-cxcl12-axis-is-involved-in-lymph-node-and-liver-metastasis-of-gastric-carcinoma
#2
Qi Xin, Na Zhang, Hai-Bo Yu, Qin Zhang, Yan-Fen Cui, Chuan-Shan Zhang, Zhe Ma, Yan Yang, Wei Liu
AIM: To investigate the role of CXC chemokine receptor (CXCR)-7 and CXCL12 in lymph node and liver metastasis of gastric carcinoma. METHODS: In 160 cases of gastric cancer, the expression of CXCR7 and CXCL12 in tumor and matched tumor-adjacent non-cancer tissues, in the lymph nodes around the stomach and in the liver was detected using immunohistochemistry to analyze the relationship between CXCR7/CXCL12 expression and clinicopathological features and to determine whether CXCR7 and CXCL12 constitute a biological axis to promote lymph node and liver metastasis of gastric cancer...
May 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28532456/mechanisms-of-tanshinone-ii-a-inhibits-malignant-melanoma-development-through-blocking-autophagy-signal-transduction-in-a375-cell
#3
Xiaojing Li, Zhifeng Li, Xianping Li, Baoguo Liu, Zhijun Liu
BACKGROUND: Malignant melanoma (MM) is one of the high degree of malignancy and early prone to blood and lymph node metastasis. There is not cured for MM. Tan II A has been reported to reduce cancer cell proliferation. But the mechanism by which Tan II A inhibited melanoma growth are not well characterized. We sought to explore the possible mechanism by which Tan II A regulated cell proliferation through autophagy signaling pathway in A375 cells. METHODS: We tested the effects of Tan II A on melanoma A375, MV3, M14, and other human cell lines including Hacat and HUVEC cells in cell culture model...
May 22, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28532450/lps-induced-systemic-inflammation-reveals-an-immunomodulatory-role-for-the-prion-protein-at-the-blood-brain-interface
#4
Ø Salvesen, M R Reiten, A Espenes, M K Bakkebø, M A Tranulis, C Ersdal
BACKGROUND: The cellular prion protein (PrP(C)) is an evolutionary conserved protein abundantly expressed not only in the central nervous system but also peripherally including the immune system. A line of Norwegian dairy goats naturally devoid of PrP(C) (PRNP (Ter/Ter)) provides a novel model for studying PrP(C) physiology. METHODS: In order to explore putative roles for PrP(C) in acute inflammatory responses, we performed a lipopolysaccharide (LPS, Escherichia coli O26:B6) challenge of 16 goats (8 PRNP (+/+) and 8 PRNP (Ter/Ter)) and included 10 saline-treated controls (5 of each PRNP genotype)...
May 22, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28531107/analysis-of-gene-expression-signatures-in-cancer-associated-stroma-from-canine-mammary-tumours-reveals-molecular-homology-to-human-breast-carcinomas
#5
Julia Ettlin, Elena Clementi, Parisa Amini, Alexandra Malbon, Enni Markkanen
Cancer-associated stroma (CAS) plays a key role in cancer initiation and progression. Spontaneously occurring canine mammary carcinomas are viewed as excellent models of human breast carcinomas. Considering the importance of CAS for human cancer, it likely plays a central role in canine tumours as well. So far, however, canine CAS lacks characterisation, and it remains unclear whether the biology between CAS from canine and human tumours is comparable. In this proof-of-principle study, using laser-capture microdissection, we isolated CAS and normal stroma from 13 formalin-fixed paraffin embedded canine simple mammary carcinomas and analysed the expression of seven known human CAS markers by RT-qPCR (Reverse Transcription quantitative PCR) and validated some targets by immunohistochemistry...
May 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28526531/detection-of-high-serum-concentration-of-cxc-chemokine-ligand-12-in-acute-intracerebral-hemorrhage
#6
Jia Shen, Bin Chen, Guan-Rong Zheng, Shen-Zhong Qiu, Huai-Ming Yin, Wei Mao, Hong-Xiang Wang, Jian-Bo Gao
BACKGROUND: CXC chemokine ligand-12 (CXCL12), a member of the CXC chemokine subfamily, is involved in both focal angiogenesis and inflammatory reactions. We examined serum CXCL12 concentration in intracerebral hemorrhage (ICH) patients and its correlation to stroke severity and outcome. METHODS: The study was carried out on 105 ICH patients on 105 healthy controls. Serum samples were at admission obtained to measure CXCL12 concentrations. The National Institutes of Health Stroke Scale (NIHSS) and hematoma volume were recorded to assess stroke severity...
May 16, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28526442/comparative-study-of-interleukin-17c-il-17c-and-il-17d-in-large-yellow-croaker-larimichthys-crocea-reveals-their-similar-but-differential-functional-activity
#7
Yang Ding, Jingqun Ao, Xinhua Chen
Interleukin 17 (IL-17) family members are key players in regulating the immune response in mammals. Here, we identified the IL-17C and IL-17D homologs from large yellow croaker (Larimichthys crocea), named LcIL-17C and LcIL-17D, respectively. The deduced LcIL-17C and LcIL-17D proteins possessed the typical IL-17 domain and shared a conserved arrangement of eight cysteine residues. Both LcIL-17C and LcIL-17Dc genes were constitutively expressed in all tissues examined, although at different levels. After challenge with Aeromonas hydrophila, the expression of LcIL-17C and LcIL-17D was significantly increased in gills, head kidney, and spleen...
May 16, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/28526063/targeting-the-cxcr4-pathway-using-a-novel-anti-cxcr4-igg1-antibody-pf-06747143-in-chronic-lymphocytic-leukemia
#8
Manoj K Kashyap, Carlos I Amaya-Chanaga, Deepak Kumar, Brett Simmons, Nanni Huser, Yin Gu, Max Hallin, Kevin Lindquist, Rolla Yafawi, Michael Y Choi, Ale-Ali Amine, Laura Z Rassenti, Cathy Zhang, Shu-Hui Liu, Tod Smeal, Valeria R Fantin, Thomas J Kipps, Flavia Pernasetti, Januario E Castro
BACKGROUND: The CXCR4-CXCL12 axis plays an important role in the chronic lymphocytic leukemia (CLL)-microenvironment interaction. Overexpression of CXCR4 has been reported in different hematological malignancies including CLL. Binding of the pro-survival chemokine CXCL12 with its cognate receptor CXCR4 induces cell migration. CXCL12/CXCR4 signaling axis promotes cell survival and proliferation and may contribute to the tropism of leukemia cells towards lymphoid tissues and bone marrow...
May 19, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28521261/novel-anti-inflammatory-agents-targeting-cxcr4-design-synthesis-biological-evaluation-and-preliminary-pharmacokinetic-study
#9
Renren Bai, Zhongxing Liang, Younghyoun Yoon, Eric Salgado, Amber Feng, Saumya Gurbani, Hyunsuk Shim
CXCR4 plays a crucial role in the inflammatory disease process, providing an attractive means for drug targeting. A series of novel amide-sulfamide derivatives were designed, synthesized and comprehensively evaluated. This new scaffold exhibited much more potent CXCR4 inhibitory activity, with more than 70% of the compounds showed notably better binding affinity than the reference drug AMD3100 in the binding assay. Additionally, in the Matrigel invasion assay, most of our compounds significantly blocked the tumor cell invasion, demonstrating superior efficacy compared to AMD3100...
May 10, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28515923/expression-of-cxcr-4-and-ido-in-human-colorectal-cancer-an-immunohistochemical-approach
#10
Masaichi Ogawa, Michiaki Watanabe, Takuo Hasegawa, Kohei Ichihara, Kazuhiko Yoshida, Katsuhiko Yanaga
C-X-C chemokine receptor type 4 (CXCR4), the receptor for the chemokine stromal cell-derived factor (SDF)-1 [also known as C-X-C motif chemokine 12 (CXCL12)], is involved in lymphocyte trafficking. Recent studies have demonstrated that, during pregnancy, a placental enzyme called indoleamine 2, 3-dioxygenase (IDO) exerts a key role in suppressing the maternal T-cell response against the fetus. In the present study, the significance of CXCR4 and IDO expression in human colorectal cancer (CRC) has been investigated by immunohistochemical assay, and their association with survival was analyzed...
May 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28515460/chlamydia-trachomatis-infection-of-human-endometrial-stromal-cells-induces-defective-decidualisation-and-chemokine-release
#11
Sevi Giakoumelou, Nick Wheelhouse, Jeremy Brown, Jean Wade, Ioannis Simitsidellis, Douglas Gibson, Philippa T K Saunders, Patrick Horner, Gary Entrican, Sarah E M Howie, Andrew W Horne
Miscarriage affects ~20% of pregnancies and maternal infections account for ~15% of early miscarriages. Chlamydia trachomatis (Ct) has been associated with miscarriage but the underlying mechanisms are unknown. Successful implantation requires endometrial stromal cell (ESC) decidualisation. Maintenance of pregnancy requires angiogenesis, establishment of the correct cellular milieu and trophoblast invasion, all of which involve the action of chemokines. Our objective was to determine whether Ct infection impacts upon ESC decidualisation and chemokine secretion...
May 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28513874/%C3%AE-3-adrenergic-regulation-of-epc-features-through-manipulation-of-the-bone-marrow-msc-niche
#12
Rana Vafaei, Seyed Mahdi Nassiri, Vahid Siavashi
Mesenchymal stem cells (MSCs) reside in a specific niche in the bone marrow however biological features of this niche are still not fully understood. Given the interactions of MSCs with endothelial cells in different tissues, bone marrow MSC niche may influence the biological features of endothelial progenitor cells (EPCs). To understand the role of the sympathetic nervous system in regulation of the MSC niche, we examined whether the manipulation of the MSC niche via β3-adrenergic signals will affect EPC features...
May 17, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28512628/dysplasia-of-granulocytes-in-a-patient-with-hpv-disease-recurrent-infections-and-b-lymphopenia-a-novel-variant-of-whim-syndrome
#13
Giusella M F Moscato, Erica Giacobbi, Lucia Anemona, Silvia Di Cesare, Gigliola Di Matteo, Massimo Andreoni, Alessandro Mauriello, Viviana Moschese
WHIM syndrome is a condition in which affected persons have chronic peripheral neutropenia, lymphopenia, abnormal susceptibility to human papilloma virus infection, and myelokathexis. Myelokathexis refers to the retention of mature neutrophils in the bone marrow (BM), which accounts for degenerative changes and hypersegmentation. Most patients present heterozygous autosomal dominant mutations of the gene encoding CXCR4. Consequently, aberrant CXCL12/CXCR4 signaling impairs the receptor downregulation causing hyperactivation (gain-of-function) that affects BM homing for myelopoiesis and lymphopoiesis and the release of neutrophils in the bloodstream...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28501636/determining-whether-observed-eukaryotic-cell-migration-indicates-chemotactic-responsiveness-or-random-chemokinetic-motion
#14
A C Szatmary, R Nossal
Chemotaxis, the motion of cells directed by a gradient of chemoattractant molecules, guides cells in immune response, development, wound healing, and cancer. Unfortunately, this process is difficult to distinguish from chemokinesis, i.e., stimulated random cell motion. Chemotaxis is frequently inferred by determining how many cells cross a boundary in a chemotaxis assay, for example how many cells crawl into a chemoattractant-infused filter, or how many cells enter a defined region in an under-agarose assay or agarose spot assay...
May 10, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/28489070/senescent-tumor-cells-lead-the-collective-invasion-in-thyroid-cancer
#15
Young Hwa Kim, Yong Won Choi, Jeonghun Lee, Euy Young Soh, Jang-Hee Kim, Tae Jun Park
Cellular senescence has been perceived as a barrier against carcinogenesis. However, the senescence-associated secretory phenotype (SASP) of senescent cells can promote tumorigenesis. Here, we show senescent tumour cells are frequently present in the front region of collective invasion of papillary thyroid carcinoma (PTC), as well as lymphatic channels and metastatic foci of lymph nodes. In in vitro invasion analysis, senescent tumour cells exhibit high invasion ability as compared with non-senescent tumour cells through SASP expression...
May 10, 2017: Nature Communications
https://www.readbyqxmd.com/read/28487111/monomeric-cxcl12-outperforms-its-dimeric-and-wild-type-variants-in-the-promotion-of-human-endothelial-progenitor-cells-function
#16
Shuang Chang, Yaning Li, Fang Yuan, Meijie Qu, Yaying Song, Zhijun Zhang, Guo-Yuan Yang, Yongting Wang
CXCL12 overexpression improves neurobehavioral recovery during post-ischemic stroke through multiple mechanisms including promoting endothelial progenitor cells function in animal models. It has been proposed that the monomer and dimer forms possess differential chemotactic and regulatory function. The aim of present study is to explore whether a monomeric or dimeric CXCL12 plays a different role in the endothelial progenitor cells proliferation, migration, and tube-formation in vitro. In this study, we transferred monomeric, dimeric and wild type CXCL12 gene into endothelial progenitor cells via lentiviral vector...
May 6, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28484459/human-cytomegalovirus-induced-degradation-of-cytip-modulates-dendritic-cell-adhesion-and-migration
#17
Linda Grosche, Christina Draßner, Petra Mühl-Zürbes, Lisa Kamm, Vu Thuy Khanh Le-Trilling, Mirko Trilling, Alexander Steinkasserer, Christiane S Heilingloh
As potent antigen-presenting cells, dendritic cells (DCs) are essential for the initiation of effective antiviral immune responses. Viruses and especially herpesviruses, which are able to establish lifelong persistence, exploit several immune evasion mechanisms targeting DC biology. Our group has previously shown that the α-herpesvirus herpes simplex virus type 1 inhibits mature DC (mDC) migration by inducing adhesion via degrading the cellular protein CYTIP (cytohesin-1 interacting protein), an important negative regulator of β2-integrin activity...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28479381/integrated-clinicopathological-features-and-gene-microarray-analysis-of-pancreatic-neuroendocrine-tumors
#18
Huaqiang Zhou, Qinchang Chen, Wulin Tan, Zeting Qiu, Si Li, Yiyan Song, Shaowei Gao
Pancreatic neuroendocrine tumors are relatively rare pancreatic neoplasms over the world. Investigations about molecular biology of PNETs are insufficient for nowadays. We aimed to explore the expression of messenger RNA and regulatory processes underlying pancreatic neuroendocrine tumors from different views. The expression profile of GSE73338 were downloaded, including samples with pancreatic neuroendocrine tumors. First, the Limma package was utilized to distinguish the differentially expressed messenger RNA...
May 4, 2017: Gene
https://www.readbyqxmd.com/read/28477018/variants-in-the-cxcl12-gene-was-associated-with-coronary-artery-disease-susceptibility-in-chinese-han-population
#19
Junbo Zhang, Huijun Ma, Jie Gao, Shu Kong, Jiangtao You, Ying Sheng
BACKGROUND: Coronary artery disease (CAD) is one of the most serious diseases all around the world. Previous studies have shown the function of CXCL12 in the process of atherosclerosis. The aim of this research is to examine whether variants of CXCL12 contribute to CAD. MATERIALS AND METHODS: To examine whether variants of CXCL12 contribute to CAD, we selected 6 single nucleotide polymorphisms (SNPs) of CXCL12, and genotyped by Sequenom MassARRAY technology in 597 CAD patients and 685 healthy control...
April 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28469959/treatment-with-the-c-c-chemokine-receptor-type-5-ccr5-inhibitor-maraviroc-suppresses-growth-and-induces-apoptosis-of-acute-lymphoblastic-leukemia-cells
#20
Jie Zi, Shushu Yuan, Jianlin Qiao, Kai Zhao, Linyan Xu, Kunming Qi, Kailin Xu, Lingyu Zeng
Acute lymphoblastic leukemia (ALL) is the most common hematological malignancy diagnosed in children and is a malignant disorder that originates from one single hematopoietic precursor committed to B- or T-cell lineage. C-C chemokine receptor type 5 (CCR5) is a chemokine and chemokine receptor pair playing critical roles in tumorigenesis. A highly potent competitive antagonist of CCR5, maraviroc, recently has been identified with suppression of cancer cells aggressive in a variety of cancers. However, the effects of maraviroc on ALL cells have not yet been defined...
2017: American Journal of Cancer Research
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