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Wnt/b-catenin signal

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https://www.readbyqxmd.com/read/29923222/effects-of-curcumin-on-nf-%C3%AE%C2%BAb-ap-1-and-wnt-%C3%AE-catenin-signaling-pathway-in-hepatitis-b-virus-infection
#1
AmirReza Hesari, Faezeh Ghasemi, Reza Salarinia, Hamed Biglari, Agheel Tabar Molla Hassan, Vali Abdoli, Hamed Mirzaei
Curcumin is a yellow-orange powder derived from the Curcuma longa plant. Curcumin has been used extensively in traditional medicine for centuries. This component is non-toxic and shown different therapeutic properties such as anti-inflammatory, anti-cancer, antiviral, anti-bacterial, anti-fungal, anti-parasites, and anti-oxidant. Hepatitis B virus (HBV) is a small DNA member of the genus Orthohepadnavirus (Hepadnaviridae family) which is a highly contagious blood-borne viral pathogen. HBV infection is a major public health problem with 2 billion people infected throughout the world and 350 million suffering from chronic HBV infection...
June 19, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29920298/exendin-4-promotes-proliferation-of-adipose-derived-stem-cells-through-pi3k-akt-wnt-signaling-pathways
#2
Xiaolu Ye, Shimeng Cheng, Yabing Dong, Jie Ren, Lina Su, Jianlan Liu, Jing Zhou, Qingmei Liu, Ningwen Zhu
Adipose-derived stem cell (ADSC) transplantation has emerged as a potential tool for the treatment of cardiovascular disease. However, with a limited renewal capacity and the need for mass cells during the engraftment, strategies are needed to enhance ADSC proliferative capacity. In this study, we explored the effects of Exendin-4, a glucagon-like peptide-1 analog, on the growth of ADSCs, focusing in particular on phosphatidylinositol 3-kinase (PI3K)-protein kinase B (Akt) and Wnt signaling pathways. Firstly, ADSCs were isolated and cultured in vitro...
June 16, 2018: Neuroscience Letters
https://www.readbyqxmd.com/read/29914933/cgmp-dependent-protein-kinase-2-regulates-bone-mass-and-prevents-diabetic-bone-loss
#3
Ghania Ramdani, Nadine Schall, Hema Kalyanaraman, Nisreen Wahwah, Sahar Moheize, Jenna J Lee, Robert L Sah, Alexander Pfeifer, Darren E Casteel, Renate B Pilz
NO/cGMP signaling is important for bone remodeling in response to mechanical and hormonal stimuli, but the downstream mediator(s) regulating skeletal homeostasis are incompletely defined. We generated transgenic mice expressing a partly-activated, mutant cGMP-dependent protein kinase type 2 (PKG2R242Q ) under control of the osteoblast-specific Col1a1 promoter to characterize the role of PKG2 in post-natal bone formation. Primary osteoblasts from these mice showed a 2- to 3-fold increase in basal and total PKG2 activity; they proliferated faster and were resistant to apoptosis compared to cells from wild type mice...
June 18, 2018: Journal of Endocrinology
https://www.readbyqxmd.com/read/29914265/overexpression-of-clec18b-associates-with-the-proliferation-migration-and-prognosis-of-glioblastoma
#4
Rui-Ming Guo, Cheng-Bin Zhao, Peng Li, Liang Zhang, Su-Hua Zang, Bo Yang
C-type lectin domain family 18 member B (CLEC18B), encoding a superfamily of CLEC, has been found to be expressed in some of cancer cells, which possibly indicates it associated with cancer. However, the defined functional characterizations of CLEC18B in glioblastoma multiforme (GBM) progression still remain unclear. To this end, clinical relevance of CLEC18B expression with GBM patients' prognosis was analyzed both in The Cancer Genome Atlas dataset of 174 tissues and 40 GBM tumor tissues collected from our hospital by using the Kaplan-Meier survival and the Cox proportional hazard model...
January 2018: ASN Neuro
https://www.readbyqxmd.com/read/29912292/oestrogen-fuels-the-growth-of-endometrial-hyperplastic-lesions-initiated-by-overactive-wnt-%C3%AE-catenin-signalling
#5
Jyoti Goad, Yi-An Ko, Manish Kumar, M Fairuz B Jamaluddin, Pradeep S Tanwar
Unopposed oestrogen results in approximately 80% of all the endometrial cancer patients. The relationship between unopposed oestrogen and endometrial cancer was indicated by the increase in the number of endometrial cancer cases due to the widespread use of oestrogen replacement therapy. Approximately 30% of the endometrial cancer patients have mutations in the Wnt signalling pathway. How the unbalanced ratios of ovarian hormones and the mutations in Wnt signalling pathway interact to cause endometrial cancer is currently unclear...
June 15, 2018: Carcinogenesis
https://www.readbyqxmd.com/read/29909964/neonatal-onset-chronic-diarrhea-caused-by-homozygous-nonsense-wnt2b-mutations
#6
Amy E O'Connell, Fanny Zhou, Manasvi S Shah, Quinn Murphy, Hannah Rickner, Judith Kelsen, John Boyle, Jefferson J Doyle, Bharti Gangwani, Jay R Thiagarajah, Daniel S Kamin, Jeffrey D Goldsmith, Camilla Richmond, David T Breault, Pankaj B Agrawal
Homozygous nonsense mutations in WNT2B were identified in three individuals from two unrelated families with severe, neonatal-onset osmotic diarrhea after whole-exome sequencing was performed on trios from the two families. Intestinal biopsy samples from affected individuals were used for histology and immunofluorescence and to generate enteroids ex vivo. Histopathologic evaluation demonstrated chronic inflammatory changes in the stomach, duodenum, and colon. Immunofluorescence demonstrated diminished staining for OLFM4, a marker for intestinal stem cells (ISCs)...
June 4, 2018: American Journal of Human Genetics
https://www.readbyqxmd.com/read/29901151/eph-ephrin-signalling-serves-a-bidirectional-role-in-lipopolysaccharide%C3%A2-induced-intestinal-injury
#7
Ying Xiong, Kai-Xue Li, Hong Wei, Lu Jiao, Shao-Yong Yu, Li Zeng
A growing body of evidence has demonstrated that Eph/ephrin signalling may serve a central role in intestinal diseases. However, whether erythropoietin‑producing hepatocellular (Eph)/ephrin signalling is associated with the development of post‑infectious irritable bowel syndrome (PI‑IBS) is still unknown. In the present study, the role of Eph/Ephrin signalling in lipopolysaccharide (LPS)‑induced intestinal injury was evaluated in vivo and in vitro. LPS treatment significantly increased the levels of proinflammatory mediators [monocyte chemoattractant protein‑1, tumour necrosis factor α, interleukin (IL)‑1β, IL‑6, intercellular adhesion molecule 1 and vascular cell adhesion molecule‑1], activated the EphA2‑Ephrin A1, protein kinase B (Akt)‑nuclear factor (NF)‑κB, Src‑NF‑κB and Wnt/β‑catenin signalling pathways, and inhibited EphB1‑Ephrin B3 signalling in colon tissues, and primary cultured enteric neuronal and glial cells...
June 14, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29895976/an-essential-role-for-wnt-%C3%AE-catenin-signaling-in-mediating-hypertensive-heart-disease
#8
Yue Zhao, Chunhong Wang, Cong Wang, Xue Hong, Jinhua Miao, Yulin Liao, Lili Zhou, Youhua Liu
Activation of the renin-angiotensin system (RAS) is associated with hypertension and heart disease. However, how RAS activation causes cardiac lesions remains elusive. Here we report the involvement of Wnt/β-catenin signaling in this process. In rats with chronic infusion of angiotensin II (Ang II), eight Wnt ligands were induced and β-catenin activated in both cardiomyocytes and cardiac fibroblasts. Blockade of Wnt/β-catenin signaling by small molecule inhibitor ICG-001 restrained Ang II-induced cardiac hypertrophy by normalizing heart size and inhibiting hypertrophic marker genes...
June 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29872041/in-vivo-base-editing-of-post-mitotic-sensory-cells
#9
Wei-Hsi Yeh, Hao Chiang, Holly A Rees, Albert S B Edge, David R Liu
Programmable nucleases can introduce precise changes to genomic DNA through homology-directed repair (HDR). Unfortunately, HDR is largely restricted to mitotic cells, and is typically accompanied by an excess of stochastic insertions and deletions (indels). Here we present an in vivo base editing strategy that addresses these limitations. We use nuclease-free base editing to install a S33F mutation in β-catenin that blocks β-catenin phosphorylation, impedes β-catenin degradation, and upregulates Wnt signaling...
June 5, 2018: Nature Communications
https://www.readbyqxmd.com/read/29871936/the-canonical-wnt-pathway-drives-macropinocytosis-in-cancer
#10
Gil Redelman-Sidi, Anna Binyamin, Isabella Gaeta, Wilhelm Palm, Craig B Thompson, Paul B Romesser, Scott W Lowe, Mukta Bagul, John G Doench, David E Root, Michael S Glickman
Macropinocytosis has emerged as an important pathway of protein acquisition in cancer cells, particularly in tumors with activated Ras such as pancreatic and colon cancer. Macropinocytosis is also the route of entry of Bacillus Calmette-Guerin (BCG) and other microbial therapies of cancer. Despite this important role in tumor biology and therapy, the full mechanisms by which cancer cells can activate macropinocytosis remain incompletely defined. Using BCG uptake to assay macropinocytosis, we executed a genome-wide shRNA screen for macropinocytosis activators and identified Wnt pathway activation as a strong driver of macropinocytosis...
June 5, 2018: Cancer Research
https://www.readbyqxmd.com/read/29864439/wnt7a-b-promote-choroidal-neovascularization
#11
Joseph B Lin, Abdoulaye Sene, Luke A Wiley, Andrea Santeford, Eric Nudleman, Rei Nakamura, Jonathan B Lin, Harsh V Moolani, Rajendra S Apte
Perturbations in WNT signaling are associated with congenital eye disorders, including familial exudative vitreoretinopathy and Norrie disease. More recently, activation of the WNT pathway has also been shown to be associated with age-related macular degeneration (AMD). In this study, we identified that in choroidal neovascular membranes from AMD patients, β-catenin is activated specifically in the vascular endothelium, suggesting that WNT promotes pathologic angiogenesis by directly affecting vascular endothelial cells...
June 1, 2018: Experimental Eye Research
https://www.readbyqxmd.com/read/29864403/effect-of-uremic-toxin-indoxyl-sulfate-on-the-skeletal-system
#12
REVIEW
Wen-Chih Liu, Chia-Chao Wu, Paik-Seong Lim, Shiaw-Wen Chien, Yi-Chou Hou, Cai-Mei Zheng, Jia-Fwu Shyu, Yuh-Feng Lin, Kuo-Cheng Lu
Chronic kidney disease-mineral bone disorders (CKD-MBD) exhibit abnormalities in the circulating mineral levels, vitamin D metabolism, and parathyroid function that contribute to the formation of a bone lesion. The uremic toxin, indoxyl sulfate (IS), accumulates in the blood in cases of renal failure and leads to bone loss. The bone and renal responses to the action of the parathyroid hormone (PTH) are progressively decreased in CKD in spite of increasing PTH levels, a condition commonly called PTH resistance...
June 1, 2018: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29863246/target-inhibition-on-gsk-3%C3%AE-by-mir-9-to-modulate-proliferation-and-apoptosis-of-bladder-cancer-cells
#13
Z-C Dong, D Zhang, S-B Wang, Z-Q Lin
OBJECTIVE: Glycogen synthase kinase-3β (GSK-3β) can negatively regulate Wnt/β-catenin signaling pathway via degrading β-catenin protein, and plays suppressing roles in various tumors. Its role in bladder cancer pathogenesis is still unclear. In bladder cancer tissues, expression of microRNA-9 (miR-9) is significantly elevated. This study investigated the effect of miR-9 in modulating GSK-3β expression, Wnt/β-catenin pathway activity, and proliferation or apoptosis of bladder cancer cells...
May 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29808276/co-exposure-to-an-aryl-hydrocarbon-receptor-endogenous-ligand-6-formylindolo-3-2-b-carbazole-ficz-and-cadmium-induces-cardiovascular-developmental-abnormalities-in-mice
#14
Mahmoud Omidi, Hossein Niknahad, Ali Noorafshan, Reza Fardid, Elham Nadimi, Samaneh Naderi, Azizollah Bakhtari, Afshin Mohammadi-Bardbori
6-Formylindolo[3,2-b]carbazole (FICZ) is a signal substance and an endogenous activator of aryl hydrocarbon receptor (AHR). Cadmium (Cd) is an environmental pollutant that can activate both AHR and Wnt/β-catenin signaling pathways. We aimed to determine how dysregulated signaling through AHR-Wnt/β-catenin cross-talk can influence mice heart development. Mice fetuses were exposed to Cd alone or in combination with FICZ in gestation day (GD) 0. In GD18, fetuses were harvested and randomly divided into two parts for stereological and molecular studies...
May 28, 2018: Biological Trace Element Research
https://www.readbyqxmd.com/read/29806307/-resveratrol-regulate-the-extracellular-matrix-expression-via-wnt-%C3%AE-catenin-pathway-in-nucleus-pulposus-cells
#15
Huzhe Liu, Jieliang Shen, Hao Zhou, Shengxi Xu, Zhenming Hu
Objective: To investigate the regulatory effect of resveratrol (RES) on the extracellular matrix (ECM) expression of nucleus pulposus cells (NPC), and its relative molecular mechanism. Methods: Ten patients receiving discectomy were collected, of which 5 patients were young with spinal burst fracture, classified as control group; the rest 5 patients were senile with lumbar disc herniation, classified as degenerative group. The nucleus pulposus tissue of 2 groups were collected, the in situ expression of β-catenin was detected by immunohistochemistry, and the protein expressions of collagen type Ⅱ and Aggrecan were detected by Western blot...
April 1, 2018: Chinese Journal of Reparative and Reconstructive Surgery
https://www.readbyqxmd.com/read/29805590/suppression-of-tumor-cell-proliferation-and-migration-by-human-umbilical-cord-mesenchymal-stem-cells-a-possible-role-for-apoptosis-and-wnt-signaling
#16
Yin Yuan, Chang Zhou, Xuan Chen, Changli Tao, Huiqing Cheng, Xin Lu
Human umbilical cord-derived mesenchymal stem cells (hUCMSCs) represent potential therapeutic tools for solid tumors. However, there are numerous inconsistent results regarding the effects of hUCMSCs on tumors, and the mechanisms underlying this remain poorly understood. The present study further examined this controversial issue by analyzing the molecular mechanisms of the inhibitory effects of hUCMSCs on the proliferation and migration of the human lung cancer A549 cell line and the human hepatocellular carcinoma (HCC) BEL7402 cell line in vitro ...
June 2018: Oncology Letters
https://www.readbyqxmd.com/read/29787999/cell-intrinsic-wnt-%C3%AE-catenin-signaling-activation
#17
Dominic B Bernkopf, Jürgen Behrens
No abstract text is available yet for this article.
May 22, 2018: Aging
https://www.readbyqxmd.com/read/29769480/5-hydroxy-4-nitro-7-propionyloxy-genistein-inhibited-invasion-and-metastasis-via-inactivating-wnt-b-catenin-signal-pathway-in-human-endometrial-carcinoma-ji-endometrial-cells
#18
Jun Bai, Xin Luo
BACKGROUND Chemotherapy has been assuring more important roles in the treatment of carcinoma. Developing new types of drugs with less adverse effects and low drug resistance has become an important researching focus. The present study aimed to investigate the anticancer effects of 5-hydroxy-4'-nitro-7-propionyloxy-genistein (HNPG) and to elucidate its underlying molecular mechanism. MATERIAL AND METHODS The inhibitory effects of cell viability of HNPG were detected using 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide (MTT) assay, flat plate clone formation method, and Transwell assay...
May 17, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29769196/an-in-vivo-screen-identifies-pygo2-as-a-driver-for-metastatic-prostate-cancer
#19
Xin Lu, Xiaolu Pan, Chang-Jiun Wu, Di Zhao, Shan Feng, Yong Zang, Rumi Lee, Sunada Khadka, Samirkumar B Amin, Eun-Jung Jin, Xiaoying Shang, Pingna Deng, Yanting Luo, William R Morgenlander, Jacqueline Weinrich, Xuemin Lu, Shan Jiang, Qing Chang, Nora M Navone, Patricia Troncoso, Ronald A DePinho, Y Alan Wang
Advanced prostate cancer displays conspicuous chromosomal instability and rampant copy number aberrations, yet the identity of functional drivers resident in many amplicons remain elusive. Here, we implemented a functional genomics approach to identify new oncogenes involved in prostate cancer progression. Through integrated analyses of focal amplicons in large prostate cancer genomic and transcriptomic datasets as well as genes upregulated in metastasis, 276 putative oncogenes were enlisted into an in vivo gain-of-function tumorigenesis screen...
May 16, 2018: Cancer Research
https://www.readbyqxmd.com/read/29767687/hormone-responsive-genes-in-the-shh-and-wnt-%C3%AE-catenin-signaling-pathways-influence-urethral-closure-and-phallus-growth
#20
Yu Chen, Hongshi Yu, Andrew J Pask, Asao Fujiyama, Yutaka Suzuki, Sumio Sugano, Geoff Shaw, Marilyn B Renfree
Environmental endocrine disruptors (EEDs) that affect androgen or estrogen activity may disrupt gene regulation during normal phallus development to cause hypospadias or a masculinized clitoris. We treated developing male tammar wallabies with estrogen and females with androgen from day 20-40 postpartum (pp) during the established androgen imprinting window. Administration of estrogen to males inhibited phallus elongation but had no effect on urethral closure and did not significantly depress testicular androgen synthesis...
May 14, 2018: Biology of Reproduction
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