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https://www.readbyqxmd.com/read/29312631/proteomic-approach-toward-determining-the-molecular-background-of-pazopanib-resistance-in-synovial-sarcoma
#1
Zhiwei Qiao, Kumiko Shiozawa, Tadashi Kondo
Pazopanib, a multitarget tyrosine kinase (TK) inhibitor, has been approved for treatment of soft tissue sarcoma. Elucidation of the molecular background of pazopanib resistance should lead to improved clinical outcomes in sarcomas; accordingly, we investigated this in synovial sarcoma using a proteomic approach. Pazopanib sensitivity was examined in four synovial sarcoma cell lines: SYO-1, HS-SYII, 1273/99, and YaFuSS. The 1273/99 cell line showed significantly higher IC50 values than the others for pazopanib...
December 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/29290970/single-nucleotide-polymorphisms-as-prognostic-and-predictive-biomarkers-in-renal-cell-carcinoma
#2
Carmen Garrigós, Marta Espinosa, Ana Salinas, Ignacio Osman, Rafael Medina, Miguel Taron, Sonia Molina-Pinelo, Ignacio Duran
Despite major advances in the knowledge of the molecular basis of renal cell carcinoma, prognosis is still defined using clinical and pathological parameters. Moreover, no valid predictive biomarkers exist to help us selecting the best treatment for each patient. With these premises, we aimed to analyse the expression and to determine the prognostic and predictive value of 64 key single nucleotide polymorphisms in 18 genes related with angiogenesis or metabolism of antiangiogenics in two cohorts of patients with localized and advanced renal cell cancer treated at our institution...
December 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/29169284/vegfc-vegfr3-signaling-regulates-mouse-spermatogonial-cell-proliferation-via-the-activation-of-akt-mapk-and-cyclin-d1-pathway-and-mediates-the-apoptosis-by-affecting-caspase-3-9-and-bcl-2
#3
Liangyu Zhao, Zijue Zhu, Chencheng Yao, Yuhua Huang, Erlei Zhi, Huixing Chen, Ruhui Tian, Peng Li, Qingqing Yuan, Yunjing Xue, Zhong Wan, Chao Yang, Yuehua Gong, Zuping He, Zheng Li
We have previously shown that the transcript levels of Vegfc and its receptor Vegfr3 were high in spermatogonia and extremely low in spermatocytes and spermatids. However, it remains unknown about the functions and the mechanisms of VEGFC/VEGFR3 signaling in regulating the fate determinations of spermatogonia. To this end, here we explored the role and signaling pathways of VEGFC/VEGFR3 by using a cell line derived from immortalized mouse spermatogonia retaining markers of mitotic germ cells, namely GC-1 cells...
November 23, 2017: Cell Cycle
https://www.readbyqxmd.com/read/29162645/the-amazing-brain-drain
#4
Marie Blanchette, Richard Daneman
In this issue of JEM, Antila et al. (https://doi.org/10.1084/jem.20170391) demonstrate that central nervous system lymphatics develop in the mouse meninges during early postnatal periods and display remarkable plasticity in adult periods through manipulation of VEGF-C-VEGFR3 signaling.
November 21, 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/29156656/vegfr3-as-a-novel-modulator-for-pah
#5
EDITORIAL
Heon-Woo Lee, Suk-Won Jin
No abstract text is available yet for this article.
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29148169/antitumor-and-anti-metastatic-mechanisms-of-rhizoma-paridis-saponins-in-lewis-mice
#6
Shuli Man, Hongyan Chai, Jingxia Cui, Jingwen Yao, Long Ma, Wenyuan Gao
Lung cancer is one of the most common causes of death in the world. Rhizoma paridis saponins (RPS) have been found to show inhibition of pulmonary adenoma in previous research. However, the detailed mechanisms of RPS from a holistic view have not been established. In this study, Lewis pulmonary adenoma mice were successfully established to analyze the pathways involved in RPS intervening tumor formation and progression. As a result, RPS inhibited levels of cytokines or receptors such as VEGFD, VEGFR3, RAGE, IL6R, IL17BR, and CXCL16 which were regarded as the initiators induced tumor cell proliferation, adhesion, angiogenesis, and invasion...
November 17, 2017: Environmental Toxicology
https://www.readbyqxmd.com/read/29141865/development-and-plasticity-of-meningeal-lymphatic-vessels
#7
Salli Antila, Sinem Karaman, Harri Nurmi, Mikko Airavaara, Merja H Voutilainen, Thomas Mathivet, Dmitri Chilov, Zhilin Li, Tapani Koppinen, Jun-Hee Park, Shentong Fang, Aleksanteri Aspelund, Mart Saarma, Anne Eichmann, Jean-Léon Thomas, Kari Alitalo
The recent discovery of meningeal lymphatic vessels (LVs) has raised interest in their possible involvement in neuropathological processes, yet little is known about their development or maintenance. We show here that meningeal LVs develop postnatally, appearing first around the foramina in the basal parts of the skull and spinal canal, sprouting along the blood vessels and cranial and spinal nerves to various parts of the meninges surrounding the central nervous system (CNS). VEGF-C, expressed mainly in vascular smooth muscle cells, and VEGFR3 in lymphatic endothelial cells were essential for their development, whereas VEGF-D deletion had no effect...
November 15, 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/29138337/correction-for-gutierrez-et-al-ets-1-is-required-for-the-activation-of-vegfr3-during-latent-kaposi-s-sarcoma-associated-herpesvirus-infection-of-endothelial-cells
#8
Kimberley D Gutierrez, Valerie A Morris, David Wu, Serge Barcy, Michael Lagunoff
No abstract text is available yet for this article.
December 1, 2017: Journal of Virology
https://www.readbyqxmd.com/read/29095068/pro-angiogenic-gene-expression-is-associated-with-better-outcome-on-sunitinib-in-metastatic-clear-cell-renal-cell-carcinoma
#9
Benoit Beuselinck, Annelies Verbiest, Gabrielle Couchy, Sylvie Job, Aurélien de Reynies, Clément Meiller, Maarten Albersen, Virginie Verkarre, Evelyne Lerut, Arnaud Méjean, Jean-Jacques Patard, Brigitte Laguerre, Nathalie Rioux-Leclercq, Patrick Schöffski, Stéphane Oudard, Jessica Zucman-Rossi
OBJECTIVES: Clear-cell renal cell carcinomas (ccRCC) are characterized by hyper-vascularization and can respond to vascular endothelial growth factor receptor (VEGFR) inhibitors such as sunitinib. We aimed to study the predictive value of the expression of genes in the hypoxia induced factor (HIF) - vascular endothelial growth factor (VEGF) - VEGFR-pro-angiogenic pathway in metastatic ccRCC (m-ccRCC) patients treated with sunitinib and the correlation between the expression of these genes and the molecular ccrcc-classification, the expression of genes involved in the immune-suppressive microenvironment and Von Hippel-Lindau (VHL) - and Polybromo-1 (PBRM1) - mutational status...
November 2, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/29076133/effects-of-vascular-endothelial-growth-factors-and-their-receptors-on-megakaryocytes-and-platelets-and-related-diseases
#10
REVIEW
Jin-Gang Yang, Li-Li Wang, Dong-Chu Ma
It is well known that vascular endothelial growth factors (VEGFs) and their receptors (vascular endothelial growth factor receptors, VEGFRs) are expressed in different tissues, and VEGF-VEGFR loops regulate a wide range of responses, including metabolic homeostasis, cell proliferation, migration and tubuleogenesis. As ligands, VEGFs act on three structurally related VEGFRs (VEGFR1, VEGFR2 and VEGFR3 [also termed FLT1, KDR and FLT4, respectively]) that deliver downstream signals. Haematopoietic stem cells (HSCs), megakaryocytic cell lines, cultured megakaryocytes (MKs), primary MKs and abnormal MKs express and secrete VEGFs...
October 26, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/29065778/upregulation-of-vegfr1-in-a-rat-model-of-esophagogastric-anastomotic-healing
#11
Laura Christina Landes, Daniel Drescher, Evangelos Tagkalos, Peter P Grimminger, René Thieme, Boris Jansen-Winkeln, Hauke Lang, Ines Gockel
INTRODUCTION: Anastomotic leakage after gastrointestinal surgery is a significant cause of morbidity and mortality. Esophagogastric and colorectal anastomoses are vulnerable to leakage. Extended knowledge of growth factors and their receptors is needed to understand anatomic healing. METHODS: The expression pattern of vascular growth factor receptor (VEGFR1-3), epidermal growth factor receptor (EGFR), platelet-derived growth factor receptor (PDGFRα/β) and keratinocyte growth factor receptor (KGFR) were analyzed by semiquantitative-PCR in the rat intestinal tract and in esophagogastric anastomosis 5d after surgery...
October 25, 2017: Acta Chirurgica Belgica
https://www.readbyqxmd.com/read/29048623/vegfr3-inhibition-chemosensitizes-lung-adenocarcinoma-a549-cells-in-the-tumor-associated-macrophage-microenvironment-through-upregulation-of-p53-and-pten
#12
Ya Li, Yaguang Weng, Liang Zhong, Huimin Chong, Sicheng Chen, Yanting Sun, Wang Li, Qiong Shi
In lung adenocarcinoma, loss of p53 and PTEN in tumors are associated with decreased response to chemotherapy and decreased survival. A means to pharmacologically upregulate p53 and PTEN protein expression could improve the prognosis of patients with p53- and PTEN-deficient tumors. In the present study we revealed that vascular endothelial growth factor receptor 3 (VEGFR3) inhibition in lung adenocarcinoma cells was associated with improved expression levels of both p53 and PTEN in the tumor-associated macrophage (TAM) microenvironment...
September 19, 2017: Oncology Reports
https://www.readbyqxmd.com/read/29039998/fn1-fos-and-itga5-induce-preeclampsia-abnormal-expression-and-methylation
#13
Mei Zhao, Lin Li, Xiumei Yang, Jianying Cui, Hong Li
OBJECTIVE: As a frequent hypertensive disorder in pregnancy, preeclampsia causes 15% of all preterm deliveries. This study aims to understand its mechanism via analyzing gene expression and methylation data. METHODS: Human gene expression microarray data (GSE73374) and corresponding DNA methylation microarray data (GSE73375) of preeclamptic placental tissues (n = 19) and normotensive placental tissues (n = 17) were obtained from the Gene Expression Omnibus. Differentially expressed genes (DEGs), differentially methylated regions (DMRs) and CpG islands (DMIs) were identified and compared...
November 2017: Hypertension in Pregnancy
https://www.readbyqxmd.com/read/29028550/paternal-exposure-to-environmental-17-alpha-ethinylestradiol-concentrations-modifies-testicular-transcription-affecting-the-sperm-transcript-content-and-the-offspring-performance-in-zebrafish
#14
David G Valcarce, Elena Vuelta, Vanesa Robles, Maria Paz Herráez
The synthetic estrogen 17-α-ethinylestradiol (EE2), a major constituent in contraceptive pills, is an endocrine disrupting chemical (EDC) present in the aquatic environment at concentrations of ng/L. Developmental exposure to these low concentrations in fish can induce several disorders. Zebrafish (Danio rerio) is a perfect organism for monitoring the effects of environmental contaminants. Our hypothesis is that changes promoted by EE2 in the germ line of male adults could be transmitted to the unexposed progeny...
September 28, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28985353/loss-of-adamts3-activity-causes-hennekam-lymphangiectasia-lymphedema-syndrome-3
#15
Pascal Brouillard, Laura Dupont, Raphael Helaers, Richard Coulie, George E Tiller, Joseph Peeden, Alain Colige, Miikka Vikkula
Primary lymphedema is due to developmental and/or functional defects in the lymphatic system. It may affect any part of the body, with predominance for the lower extremities. Twenty-seven genes have already been linked to primary lymphedema, either isolated, or as part of a syndrome. The proteins that they encode are involved in VEGFR3 receptor signaling. They account for about one third of all primary lymphedema cases, underscoring the existence of additional genetic factors. We used whole-exome sequencing to investigate the underlying cause in a non-consanguineous family with two children affected by lymphedema, lymphangiectasia and distinct facial features...
November 1, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28978162/effects-of-vegf-and-vegfr-polymorphisms-on-the-outcome-of-patients-with-metastatic-renal-cell-carcinoma-treated-with-sunitinib-a-systematic-review-and-meta-analysis
#16
Chenkui Miao, Jingyi Cao, Yuhao Wang, Bianjiang Liu, Zengjun Wang
To summarize and clarify the association between vascular endothelial growth factor (VEGF) and vascular endothelial growth factor receptor (VEGFR) polymorphisms and the outcome in patients with metastatic renal cell carcinoma (mRCC) treated with sunitinib. A total of 8 studies including 900 patients were analyzed in this systematic review after screening the database of PubMed, EMBASE and Web of Science. Hazard ratios (HRs) with 95% confidence interval (CI) were used to evaluate the strength of the association...
September 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28953502/endometrial-cancers-harboring-mutated-fibroblast-growth-factor-receptor-2-protein-are-successfully-treated-with-a-new-small-tyrosine-kinase-inhibitor-in-an-orthotopic-mouse-model
#17
Sebastien Taurin, Chieh-Hsiang Yang, Maria Reyes, Sungpil Cho, Demetrius M Coombs, Elke A Jarboe, Theresa L Werner, C Matthew Peterson, Margit M Janát-Amsbury
OBJECTIVES: AL3818 (anlotinib) is a receptor tyrosine kinase inhibitor targeting vascular endothelial growth factor receptors (VEGFR1, VEGFR2/KDR, and VEGFR3), stem cell factor receptor (C-kit), platelet-derived growth factor (PDGFβ), and fibroblast growth factor receptors (FGFR1, FGFR2, and FGFR3). This study evaluates the efficacy of AL3818 studying tumor regression in an orthotopic murine endometrial cancer model. METHODS: We tested the cytotoxicity of AL3818 on a panel of 7 human endometrial cancer cell lines expressing either wild-type or mutant FGFR2 and also assessed the in vivo antitumor efficacy in a murine, orthotopic AN3CA endometrial cancer model...
September 26, 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28910489/nucleoside-nucleotide-reverse-transcriptase-inhibitors-attenuate-angiogenesis-and-lymphangiogenesis-by-impairing-receptor-tyrosine-kinases-signalling-in-endothelial-cells
#18
Lin Song, Sha Ding, Zhen Ge, Xiaolong Zhu, Cong Qiu, Yuewen Wang, Enyin Lai, Weijun Yang, Yi Sun, Samson A Chow, Luyang Yu
BACKGROUND AND PURPOSE: Cardiovascular disease associated with antiretroviral therapy (ART) has become a major clinical challenge for HIV-positive patients. However, the role of ART in blood vessel growth is largely unknown. Here, we examined an integral component of ART, nucleoside/nucleotide reverse transcriptase inhibitors (NRTIs), and investigated their effects on key microvascular functions, including angiogenesis and lymphangiogenesis. EXPERIMENTAL APPROACH: The angiogenesis/lymphangiogenesis capability of endothelial cells (ECs) was evaluated using migration, proliferation and tube formation assays in vitro, and mouse ear and Matrigel plug assays in vivo...
September 14, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28869696/comparison-and-functional-characterisation-of-peripheral-blood-mononuclear-cells-isolated-from-filarial-lymphoedema-and-endemic-normals-of-a-south-indian-population
#19
COMPARATIVE STUDY
Abel Arul Nathan, Madhulika Dixit, Subash Babu, Anand Setty Balakrishnan
OBJECTIVE: The underlying problem in lymphatic filariasis is irreversible swelling of the limbs (lymphoedema), which is a unique feature of lymphatic insufficiency. It is still unclear whether the natural ability of lymphatics to form functional lymphatic vasculature is achieved or attenuated in the lymphoedemal pathology. Clinical studies have clearly shown that circulating lymphatic progenitors (CLPs), a subset of bone marrow-derived mononuclear cells (PBMCs), contribute to post-natal lymph vasculogenesis...
November 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/28834088/vegf-synthesis-is-induced-by-prostacyclin-and-tgf-%C3%AE-in-distal-lung-fibroblasts-from-copd-patients-and-control-subjects-implications-for-pulmonary-vascular-remodelling
#20
Gunilla Westergren-Thorsson, Mariam Bagher, Annika Andersson-Sjöland, Lena Thiman, Claes-Göran Löfdahl, Oskar Hallgren, Leif Bjermer, Anna-Karin Larsson-Callerfelt
BACKGROUND AND OBJECTIVE: Involvement of pulmonary vascular remodelling is a characteristic sign in COPD. Vascular mediators such as vascular endothelial growth factor (VEGF) and prostacyclin may regulate fibroblast activity. The objective was to study the synthesis of VEGF and interactions with prostacyclin and transforming growth factor (TGF)-β1 in lung fibroblasts from patients with COPD and healthy control subjects. To further explore the autocrine role of synthesized VEGF on fibroblast activity, studies were performed in human lung fibroblasts (HFL-1)...
August 22, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
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