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https://www.readbyqxmd.com/read/29332977/the-role-of-wnt-signalling-in-angiogenesis
#1
REVIEW
Jun Jun Olsen, Sebastian Öther-Gee Pohl, Abhijeet Deshmukh, Malini Visweswaran, Natalie C Ward, Frank Arfuso, Mark Agostino, Arun Dharmarajan
Angiogenesis is a normal biological process wherein new blood vessels form from the growth of pre-existing blood vessels. Preventing angiogenesis in solid tumours by targeting pro-angiogenic factors including vascular endothelial growth factor (VEGF), angiopoietin-1 (Ang-1), basic fibroblast growth factor (bFGF), hepatocyte growth factor, and platelet-derived growth factor (PDGF) is currently under investigation for cancer treatment. Concurrently targeting the cell signalling pathways involved in the transcriptional and post-translational regulation of these factors may provide positive therapeutic results...
November 2017: Clinical Biochemist. Reviews
https://www.readbyqxmd.com/read/29332600/finding-novel-anti-carcinomas-compounds-by-targeting-sfrp4-through-molecular-modeling-docking-and-dynamic-simulation-studies
#2
M Hassan, M Azhar, Q Abbas, H Reza, A A Moustafa, S Shahzadi, Z Ashraf, S Y Seo
BACKGROUND: Secreted frizzled-related protein 4 (SFRP4) is a glycoprotein that act as a competitor of both canonical and non-canonical Wnt pathways. SFRP4 is mostly expressed in ovary and played a significant role as a target molecule to cure ovarian carcinoma. OBJECTIVE: Multiple chemical agonists are being used to cure ovary melanoma. We are interested to theoretically analyze the compounds through computational approaches for their inhibitory effects against SFRP4...
January 11, 2018: Current Computer-aided Drug Design
https://www.readbyqxmd.com/read/29326891/role-of-exercise-on-molecular-mechanisms-in-the-regulation-of-antidepressant-effects
#3
REVIEW
Hyo-Jun Lee, Seung-Soo Baek
Regular exercise reduces depressive-like behavior activation. In this study, we look for exact roles of exercise on molecular and neuronal mechanisms for antidepressant action by studying the hippocampal neuroplasticity and proliferation. Increased hippocampal neurogenesis with exercise has potential significance for depression. Exercise promotes brain health in the molecular levels in the hippocampus and also affects behavior in a similar way to chronic antidepressant treatment. Wingless (Wnt) and frizzled signaling system plays an important role in cell proliferation, growth, and differentiation during development...
December 2017: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/29320940/methylation-mediated-loss-of-sfrp2-enhances-invasiveness-of-non-small-cell-lung-cancer-cells
#4
X Zhang, X Rong, Y Chen, L Su
The malignancy of non-small cell lung cancer (NSCLC) largely results from its invasive manner. Secreted frizzled-related proteins (SFRPs) have been recently found to suppress the invasiveness of some cancers. On the other hand, the methylation of SFRPs increases protein degradation to reduce the activity of SFRPs, resulting in increased tumor cell invasion and cancer metastasis. However, the role of SFRPs in the invasion of NSCLC has not been reported. Here we analyzed the regulation of SFRPs in NSCLC cells and its effects on cell invasion...
February 2018: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29319176/mir-542-3p-prevents-ovariectomy-induced-osteoporosis-in-rats-via-targeting-sfrp1
#5
Xiguang Zhang, Yun Zhu, Chuanlin Zhang, Jianping Liu, Tianming Sun, Dan Li, Qiang Na, Zhaowei Teng
Secreted frizzled-related protein-1 (SFRP1) is a negative regulatory molecule of the WNT signaling pathway and serves as a therapeutic target for bone formation in osteoporosis. In this study, we first established an ovariectomized (OVX) rat model to simulate postmenopausal osteoporosis and found significant changes in miR-542-3p and sFRP1 expression by RNA sequencing and qRT-PCR. In addition, there was a significant negative correlation between miR-542-3p and sFRP1 mRNA levels in postmenopausal women with osteoporosis...
January 10, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29301595/secreted-frizzled-related-protein-5-sfrp5-in-patients-with-obstructive-sleep-apnea
#6
Dong-Mei Zhang, Rong Huang, Yi Xiao, Feng-Ying Gong, Xu Zhong, Jin-Mei Luo
Objective Obstructive sleep apnea (OSA) is closely related to obesity, insulin resistance and inflammation. Secreted frizzled-related protein 5 (SFRP5) is a recently discovered adipokine. It is involved in insulin resistance and inflammation in obesity. This study aimed at evaluating the association between SFRP5 and sleeping characteristics as well as biochemical parameters of OSA patients. Methods This was a prospective case control study. Nondiabetic OSA patients and controls were consecutively recruited and divided into three groups: OSA group, apnea-hypopnea Index (AHI)≥5/h; healthy controls with normal body mass index (BMI); obese controls without OSA, and BMI > 24...
December 30, 2017: Chinese Medical Sciences Journal, Chung-kuo i Hsüeh K'o Hsüeh Tsa Chih
https://www.readbyqxmd.com/read/29277675/the-inhibitory-influence-of-adipose-tissue-derived-mesenchymal-stem-cell-environment-and-wnt-antagonism-on-breast-tumour-cell-lines
#7
Malini Visweswaran, Frank Arfuso, Rodney J Dilley, Philip Newsholme, Arun Dharmarajan
Tumours exhibit a heterogeneous mix of cell types that reciprocally regulate their growth in the tumour stroma, considerably affecting the progression of the disease. Both adipose-derived mesenchymal stem cells and Wnt signalling pathway are vital in driving breast tumour growth. Hence, we examined the effect of secreted factors released by adipose-derived mesenchymal stem cells, and further explored the anti-tumour property of the Wnt antagonist secreted frizzled-related protein 4 (sFRP4) on MCF-7 and MDA-MB-231 breast tumour cells...
December 19, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/29262368/single-molecule-imaging-of-wnt3a-protein-diffusion-on-living-cell-membranes
#8
Anna Lippert, Agnieszka A Janeczek, Alexandre Fürstenberg, Aleks Ponjavic, W E Moerner, Roel Nusse, Jill A Helms, Nicholas D Evans, Steven F Lee
Wnt proteins are secreted, hydrophobic, lipidated proteins found in all animals that play essential roles in development and disease. Lipid modification is thought to facilitate the interaction of the protein with its receptor, Frizzled, but may also regulate the transport of Wnt protein and its localization at the cell membrane. Here, by employing single-molecule fluorescence techniques, we show that Wnt proteins associate with and diffuse on the plasma membranes of living cells in the absence of any receptor binding...
December 19, 2017: Biophysical Journal
https://www.readbyqxmd.com/read/29259843/tris-1-3-dichloro-2-propyl-phosphate-disrupts-dorsoventral-patterning-in-zebrafish-embryos
#9
Subham Dasgupta, Sara M Vliet, Allison Kupsco, Jessica K Leet, Diego Altomare, David C Volz
Tris(1,3-dichloro-2-propyl) phosphate (TDCIPP) is a high-production volume organophosphate flame retardant widely used within the United States. Within zebrafish, initiation of TDCIPP exposure at 0.75 h post-fertilization (hpf) results in genome-wide alterations in methylation during cleavage (2 hpf) as well as epiboly delay or arrest (at higher concentrations) during late-blastula and early-gastrula (4-6 hpf). To determine whether these TDCIPP-induced effects were associated with impacts on the transcriptome, embryos were exposed to vehicle (0...
2017: PeerJ
https://www.readbyqxmd.com/read/29244962/expression-of-the-frizzled-receptors-and-their-co-receptors-in-calcified-human-aortic-valves
#10
Ateeque Siddique, Bin Yu, Kashif Khan, Ryan Buyting, Hamood Al-Kindi, Hossny Alaws, Eric Rhéaume, Jean-Claude Tardif, Renzo Cecere, Adel Schwertani
The cellular mechanisms that induce calcific aortic stenosis are yet to be unravelled. Wnt signaling is increasingly being considered as a major player in the disease process. However, the presence of Wnt Frizzled receptors (Fzd) and co-receptors LRP5 and 6 in normal and diseased human aortic valves remains to be elucidated. Immunohistochemistry and qPCR were used to determine Fzd receptor expression in normal and calcified human aortic valve tissue, as well as human aortic valve interstitial cells (HAVICs) isolated from calcified and normal human aortic valves...
December 15, 2017: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/29238742/class-c-g-protein-coupled-receptors-reviving-old-couples-with-new-partners
#11
Thor C Møller, David Moreno-Delgado, Jean-Philippe Pin, Julie Kniazeff
G protein-coupled receptors (GPCRs) are key players in cell communication and are encoded by the largest family in our genome. As such, GPCRs represent the main targets in drug development programs. Sequence analysis revealed several classes of GPCRs: the class A rhodopsin-like receptors represent the majority, the class B includes the secretin-like and adhesion GPCRs, the class F includes the frizzled receptors, and the class C includes receptors for the main neurotransmitters, glutamate and GABA, and those for sweet and umami taste and calcium receptors...
2017: Biophysics Reports
https://www.readbyqxmd.com/read/29230162/a-novel-de-novo-fzd2-mutation-in-a-patient-with-autosomal-dominant-omodysplasia
#12
Seval Türkmen, Malte Spielmann, Nilay Güneş, Alexej Knaus, Ricarda Flöttmann, Stefan Mundlos, Beyhan Tüysüz
We described a heterozygous de novo mutation (G434V) in the frizzled class receptor 2 (FZD2) gene in a patient with distinct facial features including hypertelorism, bilateral cleft lip/palate, short nose with a broad nasal bridge, microretrognathia, and bilateral shortness of the upper limbs, first metacarpal bones, and middle phalanges of the 5th digits. The findings of our patient were compared to an autosomal dominant omodysplasia (OMOD2) family with FZD2 mutation reported in the literature. OMOD2 is a rare skeletal dysplasia and characterized by facial dysmorphism and shortness of the upper extremities and first metacarpal bones...
November 2017: Molecular Syndromology
https://www.readbyqxmd.com/read/29224299/-correlation-analysis-of-serum-secreted-frizzled-related-protein-5-levels-with-airway-inflammation-and-insulin-resistance-in-chronic-obstructive-pulmonary-disease-patients
#13
G Y Li, S J Yin, Y Liu, H Li, S Song, Z B Kong, C Zuo, H Liu, Z Zhu
Objective: To investigate the relationship between serum secreted frizzled-related protein 5(sfrp5) levels, insulin resistance, and airway inflammation in patients with chronic obstructive pulmonary disease(COPD). Method: A total of 178 COPD patients visiting our respiratory outpatient clinic from February 2015 to January 2017 were enrolled, and 99 healthy control subjects from the same time period were selected. Serum sfrp5 levels were compared between the 2 groups. Serum sfrp5 and inflammatory cytokines in induced sputum were observed in the 4 subgroups: insulin resistant COPD group [homeostasis model assessment of insulin resistance (HOMA-IR)≥2...
December 12, 2017: Chinese Journal of Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/29219261/-relationship-between-wound-age-and-the-expression-of-fzd2-in-rats-skeletal-muscle-after-contusion
#14
T N Dong, M Pei, N Li, X Y Zhu, J H Sun
OBJECTIVES: To investigate the relationship between wound age and the expressions of frizzled-2 (Fzd2) mRNA and its protein in rats skeletal muscle after contusion, and to explore its possibility of being an index for wound age estimation. METHODS: The mRNA and protein expressions of Fzd2 in rats skeletal muscle of the control group and the experimental group within 4-48 h after contusion were detected per 4 h by RT-qPCR and Western blotting. RESULTS: AThe relative expression of Fzd2 mRNA increased at 24 h, 36 h and 40 h after contusion, and the expression at 24 h was twice as the control group ( P<0...
August 2017: Fa Yi Xue za Zhi
https://www.readbyqxmd.com/read/29215727/secreted-frizzled-related-protein-1-regulates-the-progression-of-neuropathic-pain-in-mice-following-spinal-nerve-ligation
#15
Jun Tang, Qing Ji, Li Jin, Mi Tian, Li Dong Zhang, Xiao Yu Liu
Previous studies have showed that the Wnt/β-catenin signaling pathway plays an important role in modulating neuropathic pain after sciatic nerve injury. In this study, we explored the role of secreted frizzled-related protein 1 (SFRP1), a Wnt antagonist, in neuropathic pain using a rat model following spinal nerve ligation (SNL). We found SNL-induced SFRP1 downregulation in the spinal cord. Further, the overexpression of SFRP1 via spinal injection into the spinal cord attenuated SNL-induced allodynia, hyperalgesia and neuroinflammation...
December 7, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29215008/roles-of-two-types-of-heparan-sulfate-clusters-in-wnt-distribution-and-signaling-in-xenopus
#16
Yusuke Mii, Takayoshi Yamamoto, Ritsuko Takada, Shuji Mizumoto, Makoto Matsuyama, Shuhei Yamada, Shinji Takada, Masanori Taira
Wnt proteins direct embryonic patterning, but the regulatory basis of their distribution and signal reception remain unclear. Here, we show that endogenous Wnt8 protein is distributed in a graded manner in Xenopus embryo and accumulated on the cell surface in a punctate manner in association with "N-sulfo-rich heparan sulfate (HS)," not with "N-acetyl-rich HS". These two types of HS are differentially clustered by attaching to different glypicans as core proteins. N-sulfo-rich HS is frequently internalized and associated with the signaling vesicle, known as the Frizzled/Wnt/LRP6 signalosome, in the presence of Wnt8...
December 7, 2017: Nature Communications
https://www.readbyqxmd.com/read/29212806/syndecan-1-promotes-wnt-%C3%AE-catenin-signaling-in-multiple-myeloma-by-presenting-wnts-and-r-spondins
#17
Zemin Ren, Harmen van Andel, Wim de Lau, Robin B Hartholt, Madelon M Maurice, Hans Clevers, Marie José Kersten, Marcel Spaargaren, Steven T Pals
Multiple myeloma (MM) is characterized by the expansion of malignant plasma cells in the bone marrow (BM). Most MMs display aberrant Wnt/β-catenin signaling, which drives proliferation; however, they lack oncogenic Wnt-pathway mutations, suggesting activation by autocrine Wnt ligands and/or paracrine Wnts from the BM microenvironment. Expression of the heparan sulfate proteoglycan (HSPG) syndecan-1 is a hallmark of MM. Syndecan-1 is a critical player in the complex reciprocal interaction between MM cells and their BM niche, mediating growth factor/cytokine binding and signaling by its heparan sulfate (HS) chains...
December 6, 2017: Blood
https://www.readbyqxmd.com/read/29207657/discovery-of-novel-frizzled-7-inhibitors-by-targeting-the-receptor-s-transmembrane-domain
#18
Wei Zhang, Wenyan Lu, Subramaniam Ananthan, Mark J Suto, Yonghe Li
Frizzled (Fzd) proteins are seven transmembrane receptors that belong to a novel and separated family of G-protein-coupled receptors (GPCRs). The Fzd receptors can respond to Wnt proteins to activate the canonical β-catenin pathway which is important for both initiation and progression of cancers. Disruption of the Wnt/β-catenin signal thus represents an opportunity for rational cancer prevention and therapy. Of the 10 members of the Fzd family, Fzd7 is the most important member involved in cancer development and progression...
October 31, 2017: Oncotarget
https://www.readbyqxmd.com/read/29207169/daam1-activates-rhoa-to-regulate-wnt5a%C3%A2-induced-glioblastoma-cell-invasion
#19
Guiyang Liu, Ting Yan, Xiaorong Li, Jianhui Sun, Bo Zhang, Hongjie Wang, Yichao Zhu
The signaling pathway of dishevelled-associated activator of morphogenesis 1 (Daam1) triggered by Wnt5a drives cell movement and migration during breast cancer metastasis. However, Wnt5a signaling in glioblastoma progression remains poorly defined. Wnt5a expression and activations of RhoA, Cdc42, and Rac1 were detected in human glioblastoma tissues by using ELISA assays and small G-protein activation assays, respectively. The cell invasion rate and Daam1 activation of glioblastoma U251 and T98MG cells were determined by cell invasion assays and pull-down assays, respectively...
December 1, 2017: Oncology Reports
https://www.readbyqxmd.com/read/29196093/sonic-hedgehog-regulates-the-pathfinding-of-descending-serotonergic-axons-in-hindbrain-in-collaboration-with-wnt5a-and-secreted-frizzled-related-protein-1
#20
Jie Xie, Teng Zhao, Yaobo Liu
Previous studies have demonstrated that both Wnt5a and Sonic hedgehog (Shh) are involved in regulating the pathfinding of descending serotonergic (5-HT, 5-hydroxytryptamine) axons in an opposite manner in the brainstem. Shh and Wnt signaling pathways interact to guide post-crossing commissural axons, where Shh acts as a repellent directly and shaping the Wnt gradient indirectly by regulating the gradient expression of the frizzled-related protein 1 (Sfrp1). Whether such a mechanism functions in descending 5-HT axon guidance remains unknown...
November 28, 2017: International Journal of Developmental Neuroscience
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