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https://www.readbyqxmd.com/read/28292423/a-wnt5-activity-asymmetry-and-intercellular-signaling-via-pcp-proteins-polarize-node-cells-for-left-right-symmetry-breaking
#1
Katsura Minegishi, Masakazu Hashimoto, Rieko Ajima, Katsuyoshi Takaoka, Kyosuke Shinohara, Yayoi Ikawa, Hiromi Nishimura, Andrew P McMahon, Karl Willert, Yasushi Okada, Hiroshi Sasaki, Dongbo Shi, Toshihiko Fujimori, Toshihisa Ohtsuka, Yasunobu Igarashi, Terry P Yamaguchi, Akihiko Shimono, Hidetaka Shiratori, Hiroshi Hamada
Polarization of node cells along the anterior-posterior axis of mouse embryos is responsible for left-right symmetry breaking. How node cells become polarized has remained unknown, however. Wnt5a and Wnt5b are expressed posteriorly relative to the node, whereas genes for Sfrp inhibitors of Wnt signaling are expressed anteriorly. Here we show that polarization of node cells is impaired in Wnt5a(-/-)Wnt5b(-/-) and Sfrp mutant embryos, and also in the presence of a uniform distribution of Wnt5a or Sfrp1, suggesting that Wnt5 and Sfrp proteins act as instructive signals in this process...
March 13, 2017: Developmental Cell
https://www.readbyqxmd.com/read/28268231/mir-1-3p-suppresses-the-proliferation-invasion-and-migration-of-bladder-cancer-cells-by-up-regulating-sfrp1-expression
#2
Anquan Shang, Man Yang, Fujun Shen, Jun Wang, Jun Wei, Weiwei Wang, Wenying Lu, Chunbin Wang, Chunlei Wang
BACKGROUND: Bladder cancer is of compelling morbidity and mortality due to its high recurrence rate. Little development has been made in the last decades in the therapy methods. Thus, the mechanism of its growth and invasiveness involving novel molecular targets are needed. OBJECTIVE: Our research objective is to confirm the hypothesis that miR-1-3p suppresses the proliferation, invasion and migration of bladder cancer cells. METHODS: The expression levels of miR-1-3p and SFRP1 were evaluated using RT-qPCR in bladder cancer tissues and cells as well as in normal tissues and cells...
March 6, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28260111/molecular-characterization-of-metastatic-osteosarcoma-differentially-expressed-genes-transcription-factors-and-micrornas
#3
Lisong Heng, Zhen Jia, Jie Bai, Kun Zhang, Yangjun Zhu, Jianbing Ma, Jun Zhang, Honghao Duan
The present study aimed to understand the molecular mechanisms underlying osteosarcoma metastasis. Microarray dataset GSE49003 was downloaded from the Gene Expression Omnibus database and used for analysis. Raw expression data were preprocessed using the preprocessCore, impute and aggregate packages in R. Differentially expressed genes (DEGs) between metastatic and non‑metastatic osteosarcoma cell lines were screened using the limma package following exclusion of DEGs with a higher significance in intra‑groups compared with inter‑groups using the genefilter package...
March 3, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28249195/inhibition-of-bone-formation-in-rats-by-aluminum-exposure-via-wnt-%C3%AE-catenin-pathway
#4
Xudong Sun, Haoran Wang, Wanyue Huang, Hongyan Yu, Tongtong Shen, Miao Song, Yanfei Han, Yanfei Li, Yanzhu Zhu
The previous research found that aluminum trichloride (AlCl3) inhibited rat osteoblastic differentiation through inactivation of Wnt/β-catenin signaling pathway in vitro. On that basis, the experiment in vivo was conducted in this study. Rats were orally exposed to 0 (control group) and 0.4 g/L AlCl3 (AlCl3-treated group) for 30, 60, 90 or 120 days, respectively. We found that mRNA expressions of type I collagen and insulin-like growth factor-1, mRNA and protein expressions of Runx2 and survivin, ratio of p-GSK3β/GSK3β and protein expression of β-catenin were all decreased, whereas the mRNA and protein expressions Dkk1 and sFRP1 and the mRNA expressions and activity of Caspase-3 were increased in the AlCl3-treated group compared with the control group with time prolonged...
February 20, 2017: Chemosphere
https://www.readbyqxmd.com/read/28230864/dicer-promotes-tumorigenesis-by-translocating-to-nucleus-to-promote-sfrp1-promoter-methylation-in-cholangiocarcinoma-cells
#5
Wenlong Cheng, Yongqiang Qi, Li Tian, Bing Wang, Wenhua Huang, Yongjun Chen
Dicer, a member of the RNase III family of endoribonucleases, has an important role in regulating methylation of CpG islands in mammal cancer cells. However, the underlying mechanism of action remains unclear. In this study, we demonstrated that upregulation of Dicer in cholangiocarcinoma (CCA) cells and its translocation to nuclues to interact with heterochromatin protein 1α (HP1α). The nuclear Dicer/HP1α complex appeared to promote both H3K9 trimethylation and DNA methylation of the secreted frizzled-related protein 1 (SFRP1) promoter...
February 23, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28218291/a-pan-cancer-analysis-of-secreted-frizzled-related-proteins-re-examining-their-proposed-tumour-suppressive-function
#6
Krista Marie Vincent, Lynne-Marie Postovit
Secreted frizzled-related proteins (SFRPs), containing five family members (SFRPs 1-5) are putative extracellular Wnt inhibitors. Given their abilities to inhibit Wnt signalling, as well as the loss of SFRP1 in many cancers, this family is generally considered to be tumour suppressive. In this study we analyzed gene expression, promoter methylation and survival data from over 8000 tumour and normal samples from 29 cancers in order to map the context-specific associations of SFRPs 1-5 with patient survival, gene silencing and gene expression signatures...
February 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28178355/effects-of-exercise-training-on-circulating-levels-of-dickkpof-1-and-secreted-frizzled-related-protein-1-in-breast-cancer-survivors-a-pilot-single-blind-randomized-controlled-trial
#7
Tae Ho Kim, Jae Seung Chang, Kyu-Sang Park, Jeeyeon Park, Nahyun Kim, Jong In Lee, In Deok Kong
BACKGROUND: Wingless and integration site growth factor (Wnt) signaling is a tumorigenesis-related signaling pathway. Dickkpof-1 (DKK1) and secreted frizzled-related protein-1 (SFRP1) are endogenous negative regulators of Wnt/β-catenin signaling. Accumulating evidence indicates that higher serum levels of DKK1 are correlated with poor prognosis of various types of cancer. Here, we investigated whether exercise training causes changes in the serum levels of DKK1 and SFRP1 in patients with breast cancer...
2017: PloS One
https://www.readbyqxmd.com/read/28169332/secreted-frizzled-related-protein-1-overexpression-in-gastric-cancer-relationship-with-radiological-findings-of-dual-energy-spectral-ct-and-pet-ct
#8
Huimin Lin, Guoyuan Yang, Bei Ding, Miao Zhang, Mingjun Zhang, Fuhua Yan, Ying Qu, Huan Zhang
We explored the role of secreted frizzled-related protein 1 (sFRP1) overexpression in gastric cancer and its relationship with radiological findings from dual-energy spectral CT(DEsCT) and positron emission tomography/computed tomography (PET/CT). We established mouse metastatic models using the SGC-7901/sFRP1 gastric cancer cell line. A control group was established using the SGC-7901/vector cell line. The models were then scanned with dual-energy spectral CT and PET-CT. Subsequent analysis, including immunohistochemistry and Transferase-mediated deoxyuridine triphosphate-biotin nick end labelling (TUNEL), was performed to confirm the role of sFRP1...
February 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28148542/predicting-the-grade-of-dysplasia-of-pancreatic-cystic-neoplasms-using-cyst-fluid-dna-methylation-markers
#9
Tatsuo Hata, Marco Dal Molin, Seung-Mo Hong, Koji Tamura, Masaya Suenaga, Jun Yu, Hiraku Sedogawa, Matthew J Weiss, Christopher L Wolfgang, Anne Marie Lennon, Ralph H Hruban, Michael G Goggins
PURPOSE: Pancreatic cysts are common and pose diagnostic and management challenges. Pancreatic cyst fluid markers have the potential to aid in the management of cysts with concerning imaging findings. Our aim was to evaluate cyst fluid methylated DNA markers for their accuracy for predicting the histologic grade of neoplastic pancreatic cysts. EXPERIMENTAL DESIGN: Pancreatic cyst fluid samples from 183 patients (29 discovery, 154 validation) aspirated after surgical resection were analyzed for methylated DNA at selected genes (SOX17, BNIP3, FOXE1, PTCHD2, SLIT2, EYA4 and SFRP1) using methylation-specific droplet-digital PCR (dd-QMSP)...
February 1, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28107193/microrna-744-promotes-prostate-cancer-progression-through-aberrantly-activating-wnt-%C3%AE-catenin-signaling
#10
Han Guan, Chunhui Liu, Fang Fang, Yeqing Huang, Tao Tao, Zhixin Ling, Zonghao You, Xu Han, Shuqiu Chen, Bin Xu, Ming Chen
Accumulated evidence indicate that miR-744 functions as either tumor suppressor or oncogene in the progression of a variety of tumors, with a tumor type-specific way. However, little is known about how miR-744 impacts on the tumorigenesis of human prostate cancer. In this study, employing the analyses of microarray, qRT-PCR and re-analysis of MSKCC data, we found that CRPC tissues expressed much more miR-744 than ADPC tissues did, and the expression level of miR-744 was inversely associated with survival of CRPC patients...
January 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28105693/epigenetic-regulation-of-wnt-%C3%AE-catenin-signal-associated-genes-in-gastric-neoplasia-of-the-fundic-gland-chief-cell-predominant-type
#11
Takashi Murakami, Hiroyuki Mitomi, Takashi Yao, Tsuyoshi Saito, Tomoyoshi Shibuya, Sumio Watanabe
Gastric neoplasia of the fundic gland (chief cell-predominant) type (GNCCP) is a rare variant of gastric tumor. This tumor is associated with activation of the Wnt/β-catenin signaling pathway; however, the mechanisms underlying this activation remain unknown. To elucidate potential roles of Wnt/β-catenin signal-associated gene methylation in GNCCP, we performed β-catenin immunostaining and methylation-specific polymerase chain reaction (PCR) for their associated genes, including SFRPs, APC, AXIN2, and MCC, in 26 GNCCPs [i...
March 2017: Pathology International
https://www.readbyqxmd.com/read/28099945/in-vivo-and-in-vitro-effects-of-microrna-27a-on-proliferation-migration-and-invasion-of-breast-cancer-cells-through-targeting-of-sfrp1-gene-via-wnt-%C3%AE-catenin-signaling-pathway
#12
Ling-Yu Kong, Mei Xue, Qing-Cai Zhang, Chuan-Fu Su
This study aims to explore the effects of microRNA-27a (miR-27a) targeting of SFRP1 on the proliferation, migration and invasion of breast cancer (BC) cells through the regulation of Wnt/β-catenin signaling pathway. BC and normal breast tissues were obtained from 396 female BC patients and 308 female patients with benign breast lesions respectively. Human normal mammary epithelial (MCF-10A) and BC cell lines (BT-20, MCF-7, T-47D and MDA-MB-231) were cultured. After cell transfection, BC cells were assigned to six groups: control, miR-27a mimics, miR-27a inhibitors, negative control (NC), si-SFRP1 and si-SFRP1 + miR-27a inhibitors groups...
January 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28077379/effects-of-supplementation-with-nondigestible-carbohydrates-on-fecal-calprotectin-and-on-epigenetic-regulation-of-sfrp1-expression-in-the-large-bowel-mucosa-of-healthy-individuals
#13
Fiona C Malcomson, Naomi D Willis, Iain McCallum, Long Xie, Idoia Ibero-Baraibar, Wing C Leung, Seamus Kelly, D Michael Bradburn, Nigel J Belshaw, Ian T Johnson, John C Mathers
BACKGROUND: Hyperactive Wnt signaling is frequently observed in colorectal cancer. Higher intakes of dietary fiber [nondigestible carbohydrates (NDCs)] and the fermentation product butyrate are protective against colorectal cancer and may exert their preventative effects via modulation of the Wnt pathway. OBJECTIVES: We investigated the effects of supplementing healthy individuals with 2 NDCs [resistant starch (RS) and polydextrose] on fecal calprotectin concentrations and Wnt pathway-related gene expression...
February 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28069902/wnt-regulation-of-embryonic-development-likely-involves-pathways-independent-of-nuclear-ctnnb1
#14
Paula Tribulo, James I Moss, Manabu Ozawa, Zongliang Jiang, Xiuchun Cindy Tian, Peter J Hansen
The bovine was used to examine the potential for WNT signaling to affect the preimplantation embryo. Expression of seven key genes involved in canonical WNT signaling declined to a nadir at the morula or blastocyst stage. Expression of 80 genes associated with WNT signaling in the morula and inner cell mass (ICM) and trophectoderm (TE) of the blastocyst was also evaluated. Many genes associated with WNT signaling were characterized by low transcript abundance. Seven genes were different between ICM and TE, and all of them were overexpressed in TE as compared to ICM, including WNT6, FZD1, FZD7, LRP6, PORCN, APC and SFRP1 Immunoreactive CTNNB1 was localized primarily to the plasma membrane at all stages examined from the 2-cell to blastocyst stages of development...
April 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28062160/loss-of-secreted-frizzled-related-protein-1-expression-is-associated-with-poor-prognosis-in-intrahepatic-cholangiocarcinoma
#15
M Davaadorj, Y Saito, Y Morine, T Ikemoto, S Imura, C Takasu, S Yamada, T Hiroki, M Yoshikawa, M Shimada
AIMS: Secreted Frizzled-Related Protein-1 (SFRP1) is a well-known negative regulator of the wingless type (Wnt)-β-catenin pathway and its inactivation plays an important role in the development and progression of many cancers. In this study, we aimed to determine the clinical significance of SFRP1 expression in intrahepatic cholangiocarcinoma (IHCC) and to define the relationship to Wnt-β-catenin pathway. METHODS: Fifty IHCC patients who had liver resection were enrolled in this study...
February 2017: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28058013/aging-related-methylation-influences-the-gene-expression-of-key-control-genes-in-colorectal-cancer-and-adenoma
#16
Orsolya Galamb, Alexandra Kalmár, Barbara Kinga Barták, Árpád V Patai, Katalin Leiszter, Bálint Péterfia, Barnabás Wichmann, Gábor Valcz, Gábor Veres, Zsolt Tulassay, Béla Molnár
AIM: To analyze colorectal carcinogenesis and age-related DNA methylation alterations of gene sequences associated with epigenetic clock CpG sites. METHODS: In silico DNA methylation analysis of 353 epigenetic clock CpG sites published by Steve Horvath was performed using methylation array data for a set of 123 colonic tissue samples [64 colorectal cancer (CRC), 42 adenoma, 17 normal; GEO accession number: GSE48684]. Among the differentially methylated age-related genes, secreted frizzled related protein 1 (SFRP1) promoter methylation was further investigated in colonic tissue from 8 healthy adults, 19 normal children, 20 adenoma and 8 CRC patients using bisulfite-specific PCR followed by methylation-specific high resolution melting (MS-HRM) analysis...
December 21, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27943272/diagnostic-and-prognostic-role-of-cell-free-dna-testing-for-colorectal-cancer-patients
#17
Chiara Bedin, Maria Vittoria Enzo, Paola Del Bianco, Salvatore Pucciarelli, Donato Nitti, Marco Agostini
Circulating cell-free DNA (cfDNA) was found in increased amounts in cancer patients and tumor-associated molecular alteration can be detected in cancer patient's samples. For this reason, the cfDNA analysis is actually considered as a new concept of liquid biopsy. We evaluated the presence and integrity of plasma cfDNA by ALU-based qPCR and the methylation profile of OSMR and SFRP1 genes promoter in a large cohort of colorectal cancer (CRC) patients (n = 114) in comparison to healthy subjects (n = 56) and patients with adenomatous lesions (n = 22)...
December 10, 2016: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/27913688/left-ventricle-transcriptomic-analysis-reveals-connective-tissue-accumulation-associates-with-initial-age-dependent-decline-in-v%C3%AC-o2peak-from-its-lifetime-apex
#18
Gregory N Ruegsegger, Ryan G Toedebusch, Joshua F Braselton, Thomas E Childs, Frank W Booth
Peak oxygen consumption (V̇O2peak) strongly predicts morbidity and mortality better than other established risk factors, yet mechanisms associated with its age-associated decline are unknown. Our lab has shown that V̇O2peak first begins to decrease at the same age of 19-20 weeks old in both sedentary and wheel-running, female Wistar rats (Toedebusch et al., Physiol Genomics. 48:101-15, 2016). Here, we employed a total systemic approach using unsupervised interrogation of mRNA with RNA-sequencing. The purpose of our study was to analyze transcriptomic profiles from both sedentary (SED) and wheel-running (RUN) conditions as a strategy to identify pathways in the left ventricle that may contribute to the initial reductions in V̇O2peak occurring between 19 and 27 weeks of age...
December 2, 2016: Physiological Genomics
https://www.readbyqxmd.com/read/27904780/low-expression-of-rbms3-and-sfrp1-are-associated-with-poor-prognosis-in-patients-with-gastric-cancer
#19
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/27896617/comprehensive-dna-methylation-and-mutation-analyses-reveal-a-methylation-signature-in-colorectal-sessile-serrated-adenomas
#20
Árpád V Patai, Barbara Kinga Barták, Bálint Péterfia, Tamás Micsik, Réka Horváth, Csaba Sumánszki, Zoltán Péter, Árpád Patai, Gábor Valcz, Alexandra Kalmár, Kinga Tóth, Tibor Krenács, Zsolt Tulassay, Béla Molnár
Colorectal sessile serrated adenomas (SSA) are hypothesized to be precursor lesions of an alternative, serrated pathway of colorectal cancer, abundant in genes with aberrant promoter DNA hypermethylation. In our present pilot study, we explored DNA methylation profiles and examined selected gene mutations in SSA. Biopsy samples from patients undergoing screening colonoscopy were obtained during endoscopic examination. After DNA isolation and quality analysis, SSAs (n = 4) and healthy controls (n = 5) were chosen for further analysis...
November 29, 2016: Pathology Oncology Research: POR
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