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https://www.readbyqxmd.com/read/27920883/exogenous-secreted-frizzled-related-protein-4-modulates-steroidogenesis-of-rat-granulosa-cells-through-wnt-%C3%AE-catenin-and-pi3k-akt-signaling-pathways
#1
Ghamartaj Hossein, Manijeh Khanmohammadi, Parisa Sahranavard Fard, Yasaman Heidarian, Somaieh Kazemnejad, Mohammad Mehdi Akhondi
BACKGROUND: It has been reported that secreted frizzled-related protein-4 known as an antagonist of Wnt signaling pathway plays a role in luteinization process of rodent granulosa cells. The purpose of this study was twofold: 1) to determine whether recombinant human secreted frizzled-related protein-4 (rhSFRP-4) could directly induce terminal differentiation of rat Granulosa Cells (GCs) and 2) to understand how the modulation of β-catenin and Protein Kinase B (PKB)/AKT activity by exogenous SFRP-4 could be involved in steroidogenesis...
October 2016: Avicenna Journal of Medical Biotechnology
https://www.readbyqxmd.com/read/27904780/low-expression-of-rbms3-and-sfrp1-are-associated-with-poor-prognosis-in-patients-with-gastric-cancer
#2
Tao Zhang, Youliang Wu, Zheng Fang, Qiang Yan, Shangxin Zhang, Ruochuan Sun, Junaid Khaliq, Yongxiang Li
RNA binding motif, single stranded interacting protein 3 (RBMS3) has been reported as a tumor suppressor gene (TSG) in some squamous carcinoma. However, its expression levels and clinical significance in gastric cancer (GC) remains unclear. Secreted frizzled-related protein 1 (SFRP1) plays a role of tumor suppressor in many cancers by inhibiting Wnt/β-catenin pathway. Nevertheless, its expression levels and clinical significance in GC are in dispute. In this study, quantitative real-time PCR and Western Blot were used to measure the mRNA and protein level of RBMS3 and SFRP1 in 23 fresh GC and corresponding normal tissues...
2016: American Journal of Cancer Research
https://www.readbyqxmd.com/read/27890011/microrna-mir-130b-promotes-wear-particle-induced-osteolysis-via-down-regulating-frizzled-related-protein-frzb
#3
De-Zhi Zheng, Lei Wang, Yan-Min Bu, Jun Liu
Periprosthetic osteolysis induced by wear particles can lead to aseptic loosening, one main reason of arthroplasty failure. However, the role of microRNA-130b (miR-130b) in particle-induced osteolysis (PIO) has not been explored yet. In this study, PIO models were established in C57BL/J6 mice via the implantation of Co-Cr-Mo alloy particles, and evaluated by detecting tartrate-resistant acid phosphatase (TRAP) activity and bone resorption in the calvaria. Mouse preosteoblast MC3T3-E1 cells were cultured to receive particle stimulation in vitro...
November 23, 2016: Current Neurovascular Research
https://www.readbyqxmd.com/read/27883247/2-methoxyestradiol-mediated-induction-of-frzb-contributes-to-cell-death-and-autophagy-in-mg63-osteosarcoma-cells
#4
Dalibel Bravo, Kristen L Shogren, Dongqing Zuo, Eric R Wagner, Gobinda Sarkar, Michael J Yaszemski, Avudaiappan Maran
Osteosarcoma is a bone tumor that mainly affects children and adolescents. Although its pathogenesis is still not fully understood, activation of Wnt signaling has been implicated in the development and metastasis of osteosarcoma. In this report, we have investigated the effect of the anti-tumor compound, 2-methoxyestradiol (2-ME) on Wnt antagonist frizzled-related protein b (Frzb), also known as secreted frizzled-related protein (sFRP)3 in human osteosarcoma (MG63) cells. Our results show that 2-ME treatment induces Frzb gene promoter activity, and increases Frzb mRNA and protein levels in osteosarcoma cells...
November 24, 2016: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/27878554/the-involvement-of-the-decrease-of-astrocytic-wnt5a-in-the-cognitive-decline-in-minimal-hepatic-encephalopathy
#5
Saidan Ding, Zhu Xu, Jianjing Yang, Leping Liu, Xueli Huang, Xuebao Wang, Qichuan Zhuge
Wnt signaling plays a key role in neuroprotection and synaptic plasticity. We speculate that the impairment of Wnt signaling may mediate astrocytic neurotrophins (NTs) production and the impairment of Wnt signaling to astrocytic NTs production contributes to the pathogenesis of minimal hepatic encephalopathy (MHE). Here, we found that induction of astrocytic NTs synthesis was by Wnt5a via the calcium/calmodulin-sensitive protein kinase II (CaMK II)-cAMP-response element-binding protein (CREB) pathway in PCAs...
November 22, 2016: Molecular Neurobiology
https://www.readbyqxmd.com/read/27869803/genome-wide-crispr-screens-reveal-a-wnt-fzd5-signaling-circuit-as-a-druggable-vulnerability-of-rnf43-mutant-pancreatic-tumors
#6
Zachary Steinhart, Zvezdan Pavlovic, Megha Chandrashekhar, Traver Hart, Xiaowei Wang, Xiaoyu Zhang, Mélanie Robitaille, Kevin R Brown, Sridevi Jaksani, René Overmeer, Sylvia F Boj, Jarrett Adams, James Pan, Hans Clevers, Sachdev Sidhu, Jason Moffat, Stéphane Angers
Forward genetic screens with CRISPR-Cas9 genome editing enable high-resolution detection of genetic vulnerabilities in cancer cells. We conducted genome-wide CRISPR-Cas9 screens in RNF43-mutant pancreatic ductal adenocarcinoma (PDAC) cells, which rely on Wnt signaling for proliferation. Through these screens, we discovered a unique requirement for a Wnt signaling circuit: engaging FZD5, one of the ten Frizzled receptors encoded in the human genome. Our results uncover an underappreciated level of context-dependent specificity at the Wnt receptor level...
November 21, 2016: Nature Medicine
https://www.readbyqxmd.com/read/27859262/functional-and-prognostic-significance-of-the-genomic-amplification-of-frizzled-receptor-6-fzd6-in-breast-cancer
#7
Gabriele Corda, Gianluca Sala, Rossano Lattanzio, Manuela Iezzi, Michele Sallese, Giorgia Fragassi, Alessia Lamolinara, Hasan Mirza, Daniela Barcaroli, Sibylle Ermler, Elisabete Silva, Hemad Yasaei, Robert F Newbold, Paola Vagnarelli, Marcella Mottolese, Pier Giorgio Natali, Letizia Perracchio, Jelmar Quist, Anita Grigoriadis, Pierfrancesco Marra, Andrew N Tutt, Mauro Piantelli, Stefano Iacobelli, Vincenzo De Laurenzi, Arturo Sala
Frizzled receptors mediate Wnt ligands' signalling, which is crucially involved in regulating tissue development, differentiation and is often deregulated in cancer. In this study we found that the Wnt receptor frizzled 6 (FZD6) is frequently amplified in breast cancer, with an increased incidence in the triple negative breast cancer (TNBC) subtype. Ablation of FZD6 gene expression in mammary cancer cell lines: a) inhibited motility and invasion b) induced a more symmetric shape of organoid 3D cultures c) inhibited bone and liver metastasis in vivo...
November 9, 2016: Journal of Pathology
https://www.readbyqxmd.com/read/27852064/overexpression-of-fzd7-promotes-glioma-cell-proliferation-by-upregulating-taz
#8
Xia Qiu, Jianguo Jiao, Yidong Li, Tian Tian
Gliomas are the most prevalent type of primary brain tumors in adults, accounting for more than 40% of neoplasm in the central nervous system. Frizzled-7 (FZD7) is a seven-pass trans-membrane Wnt receptor that plays a critical role in the development of various tumors. In this study, we detected high-level FZD7 expression in glioma and its overexpression was associated with advanced tumor stage. In vitro functional assays showed that forced overexpression of FZD7 promoted proliferation of gliomas cells, whereas knockdown of endogenous FZD7 significantly suppressed proliferation ability of these cells...
November 11, 2016: Oncotarget
https://www.readbyqxmd.com/read/27849134/developing-and-characterization-of-single-chain-variable-fragment-scfv-antibody-against-frizzled-7-fzd7-receptor
#9
Hamid Nickho, Vahid Younesi, Leili Aghebati-Maleki, Morteza Motallebnezhad, Jafar Majidi Zolbanin, Aliakbar Movassagh Pour, Mehdi Yousefi
Wnt/β-catenin signaling pathway through Frizzled receptors has been shown to play a key role in both normal development and tumorigenesis. Overexpression of Wnt pathway genes, such as Fzd7 in several malignancies is well-documented. Therefore, targeting of Fzd7 and its ligand inhibits cancer cells proliferation metastasis. In the present study we isolated single chain variable fragments (scFvs) against Fzd7 receptor using phage display method. Semi-synthetic human naive antibody libraries (Tomlinson I + J) was employed in panning procedure to isolate specific scFv against specific peptide from extracellular domain of Fzd7 receptor...
November 16, 2016: Bioengineered
https://www.readbyqxmd.com/read/27828711/wnt5a-deficiency-regulates-inflammatory-cytokine-secretion-polarization-and-apoptosis-in-mycobacterium-tuberculosis-infected-macrophages
#10
Deming Chen, Guobao Li, Xiangdong Fu, Pei Li, Jie Zhang, Lan Luo
Tuberculosis, an infectious disease caused by Mycobacterium tuberculosis (MTB), is one of the global public health catastrophes. Wnt signaling has recently been identified to exert immunoregulatory functions in a variety of inflammatory and infectious diseases, including tuberculosis. The opposite expression of Wnt5a in human and mice during MTB infection drives us to explore the roles and biological significances of reduced Wnt5a for MTB-treated mice. In our study, the reduction of WNT5A in MTB-treated mice lung tissues or MTB-infected mice bone marrow-derived macrophages (BM-Mø) was in a dose- and time-dependent manner...
November 9, 2016: DNA and Cell Biology
https://www.readbyqxmd.com/read/27821163/secreted-frizzled-related-protein-2-sfrp2-promotes-osteosarcoma-invasion-and-metastatic-potential
#11
Piti Techavichit, Yang Gao, Lyazat Kurenbekova, Ryan Shuck, Lawrence A Donehower, Jason T Yustein
BACKGROUND: Osteosarcoma (OS), which has a high potential for developing metastatic disease, is the most frequent malignant bone tumor in children and adolescents. Molecular analysis of a metastatic genetically engineered mouse model of osteosarcoma identified enhanced expression of Secreted Frizzled-Related Protein 2 (sFRP2), a putative regulator of Wnt signaling within metastatic tumors. Subsequent analysis correlated increased expression in the human disease, and within highly metastatic OS cells...
November 8, 2016: BMC Cancer
https://www.readbyqxmd.com/read/27814607/molecular-strategies-for-modulating-wnt-signaling
#12
Carl T Gustafson, Tewodros Mamo, Avudaiappan Maran, Michael J Yaszemski
The importance of the Wnt signaling cascade in the fields of developmental biology, regenerative medicine, cancer genetics, and neurobiology has fueled a wide search for potent pharmacological agents capable of controlling Wnt signaling. Numerous fields of study have lent assistance to this endeavor, yielding both natural and synthetic compounds that are capable of inducing or inhibiting Wnt at multiple stages within the pathway. Further, there is a large of body research which has investigated endogenous Wnt inducers and inhibitors, namely the secreted Wnts, Dickkof proteins, secreted Frizzled-Related Proteins, and Wnt Inhibitory Factor-1, along with others which may act via indirect means to stimulate or inhibit Wnt (e...
January 1, 2017: Frontiers in Bioscience (Landmark Edition)
https://www.readbyqxmd.com/read/27793890/heart-peptide-hormones-adjunct-and-primary-treatments-of-cancer
#13
REVIEW
David L Vesely
: Four heart hormones, namely atrial natriuretic peptide (ANP), long-acting natriuretic peptide (LANP), vessel dilator and kaliuretic peptide reduce up to 97% of cancer cells in vitro. These four cardiac hormones eliminate up to 80% of human pancreatic adenocarcinomas, two-thirds of human breast carcinomas and up to 86% of human small-cell lung carcinomas growing in athymic mice. ANP given intravenously for 3 hours after 'curative' lung surgery as an adjunct to surgery results in a 2-year relapse-free survival of 91% compared to 75% for those treated with surgery alone...
November 2016: Anticancer Research
https://www.readbyqxmd.com/read/27791094/primate-specific-mir-515-family-members-inhibit-key-genes-in-human-trophoblast-differentiation-and-are-upregulated-in-preeclampsia
#14
Ming Zhang, Sribalasubashini Muralimanoharan, Alison C Wortman, Carole R Mendelson
Dysregulation of human trophoblast invasion and differentiation can result in preeclampsia (PE), a hypertensive disorder of pregnancy with significant morbidity and mortality for mother and offspring. miRNA microarray analysis of RNA from human cytotrophoblasts (CytT), before and after differentiation to syncytiotrophoblast (SynT) in primary culture, revealed that members of miR-515 family-including miR-515-5p, miR-519e-5p, miR-519c-3p, and miR-518f, belonging to the primate- and placenta-specific chromosome 19 miRNA cluster (C19MC)-were significantly down-regulated upon human SynT differentiation...
October 24, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27786367/isolated-recessive-nail-dysplasia-caused-by-fzd6-mutations-report-of-three-families-and-review-of-the-literature
#15
C Kasparis, D Reid, N J Wilson, V Okur, C Cole, C D Hansen, K Bosse, R C Betz, M Khan, F J D Smith
Congenital abnormalities of the nail are rare conditions that are most frequently associated with congenital ectodermal syndromes involving several of the epidermal appendages including the skin, teeth, hair and nails. Isolated recessive nail dysplasia (IRND) is much rarer but has recently been recognized as a condition resulting in 20-nail dystrophy in the absence of other cutaneous or extracutaneous findings. A few case reports have identified mutations in the Frizzled 6 (FZD6) gene in families presenting with abnormal nails consistent with IRND...
December 2016: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/27774671/centriole-positioning-in-epithelial-cells-and-its-intimate-relationship-with-planar-cell-polarity
#16
Jose Maria Carvajal-Gonzalez, Sonia Mulero-Navarro, Marek Mlodzik
Planar cell polarity (PCP)-signaling and associated tissue polarization are evolutionarily conserved. A well documented feature of PCP-signaling in vertebrates is its link to centriole/cilia positioning, although the relationship of PCP and ciliogenesis is still debated. A recent report in Drosophila established that Frizzled (Fz)-PCP core signaling has an instructive input to polarized centriole positioning in non-ciliated Drosophila wing epithelia as a PCP read-out. Here, we review the impact of this observation in the context of recent descriptions of the relationship(s) of core Fz-PCP signaling and cilia/centriole positioning in epithelial and non-epithelial cells...
October 24, 2016: BioEssays: News and Reviews in Molecular, Cellular and Developmental Biology
https://www.readbyqxmd.com/read/27768254/reduced-expression-of-chemerin-in-visceral-adipose-tissue-associates-with-hepatic-steatosis-in-patients-with-obesity
#17
Marlies Bekaert, D Margriet Ouwens, Tina Hörbelt, Frederique Van de Velde, Pia Fahlbusch, Daniella Herzfeld de Wiza, Yves Van Nieuwenhove, Patrick Calders, Marleen Praet, Anne Hoorens, Anja Geerts, Xavier Verhelst, Jean-Marc Kaufman, Bruno Lapauw
OBJECTIVE: This study aimed to evaluate whether circulating levels and/or visceral adipose tissue (VAT) expression of recently described adipokines associate with histopathological severity of nonalcoholic fatty liver disease (NAFLD), independent of obesity and insulin resistance. METHODS: Serum levels of adiponectin, omentin, chemerin, monocyte chemoattractant protein-1, and secreted frizzled-related protein 4 were measured using enzyme-linked immunosorbent assay in 81 patients with obesity and NAFLD and 18 lean control subjects...
October 21, 2016: Obesity
https://www.readbyqxmd.com/read/27758766/fzd7-frizzled-7-expressed-by-endothelial-cells-controls-blood-vessel-formation-through-wnt-%C3%AE-catenin-canonical-signaling
#18
Claire Peghaire, Marie Lise Bats, Raj Sewduth, Sylvie Jeanningros, Beatrice Jaspard, Thierry Couffinhal, Cécile Duplàa, Pascale Dufourcq
OBJECTIVE: Vessel formation requires precise orchestration of a series of morphometric and molecular events controlled by a multitude of angiogenic factors and morphogens. Wnt/frizzled signaling is required for proper vascular formation. In this study, we investigated the role of the Fzd7 (frizzled-7) receptor in retinal vascular development and its relationship with the Wnt/β-catenin canonical pathway and Notch signaling. APPROACH AND RESULTS: Using transgenic mice, we demonstrated that Fzd7 is required for postnatal vascular formation...
October 6, 2016: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/27752995/hedgehog-gli1-signal-pathway-facilitates-proliferation-invasion-and-migration-of-cutaneous-scc-through-regulating-vegf
#19
Qian Sun, Jing Bai, Renrong Lv
Since hedgehog (HH)/Gli1 that contributes to cancer proliferation and metastasis has been masked for decades, the signaling pathway was investigated about its exact role in proliferation and metastasis of cutaneous squamous cell carcinoma (SCC). Sonic hedgehog homolog (Shh), GLI family zinc finger 1 (Gli1), and vascular endothelial growth factor (VEGF) expressions in cutaneous SCC tissues were analyzed with immunohistochemistry, and their correlations with cutaneous SCC patients' prognosis were conducted with Kaplan-Meier curve...
October 17, 2016: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/27746220/collagen-xviii-in-tissue-homeostasis-and-dysregulation-lessons-learned-from-model-organisms-and-human-patients
#20
Ritva Heljasvaara, Mari Aikio, Heli Ruotsalainen, Taina Pihlajaniemi
Collagen XVIII is a ubiquitous basement membrane (BM) proteoglycan produced in three tissue-specific isoforms that differ in their N-terminal non-collagenous sequences, but share collagenous and C-terminal non-collagenous domains. The collagenous domain provides flexibility to the large collagen XVIII molecules on account of multiple interruptions in collagenous sequences. Each isoform has a complex multi-domain structure that endows it with an ability to perform various biological functions. The long isoform contains a frizzled-like (Fz) domain with Wnt-inhibiting activity and a unique domain of unknown function (DUF959), which is also present in the medium isoform...
October 13, 2016: Matrix Biology: Journal of the International Society for Matrix Biology
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