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https://www.readbyqxmd.com/read/29792854/bergmann-glial-sonic-hedgehog-signaling-activity-is-required-for-proper-cerebellar-cortical-expansion-and-architecture
#1
Frances Y Cheng, Jonathan T Fleming, Chin Chiang
Neuronal-glial relationships play a critical role in the maintenance of central nervous system architecture and neuronal specification. A deeper understanding of these relationships can elucidate cellular cross-talk capable of sustaining proper development of neural tissues. In the cerebellum, cerebellar granule neuron precursors (CGNPs) proliferate in response to Purkinje neuron-derived Sonic hedgehog (Shh) before ultimately exiting the cell cycle and migrating radially along Bergmann glial fibers. However, the function of Bergmann glia in CGNP proliferation remains not well defined...
May 21, 2018: Developmental Biology
https://www.readbyqxmd.com/read/29792038/downregulation-of-cancer-stemness-by-novel-diterpenoid-ovatodiolide-inhibits-hepatic-cancer-stem-cell-like-traits-by-repressing-wnt-formula-see-text-catenin-signaling
#2
Mingche Liu, Oluwaseun Adebayo Bamodu, Kuang-Tai Kuo, Wei-Hwa Lee, Yen-Kuang Lin, Alexander T H Wu, Hsiao M, Yew-Min Tzeng, Chi-Tai Yeh, Jo-Ting Tsai
The hierarchical tumor propagation or cancer stem cells (CSCs) model of carcinogenesis postulates that like physiologic adult stem cell (ASC), the CSCs positioned at the apex of any tumor population form the crux of tumor evolution with a constitutive regenerative capacity and differentiation potential. The propagation and recurrence of the characteristically heterogeneous and therapy-resistant hepatocellular carcinoma (HCC), adds to accumulating evidence to support this CSCs model. Based on the multi-etiologic basis of HCC formation which among others, focuses on the disruption of the canonical Wnt signaling pathway, this study evaluated the role of cembrane-type phytochemical, Ovatodiolide, in the modulation of the Wnt/[Formula: see text]-catenin pathway, and its subsequent effect on liver CSCs' activities...
May 24, 2018: American Journal of Chinese Medicine
https://www.readbyqxmd.com/read/29790067/receptor-for-advanced-glycation-end-products-rage-blockade-do-damage-to-neuronal-survival-via-disrupting-wnt-%C3%AE-catenin-signaling-in-spinal-cord-injury
#3
Hongyu Wang, Ziming Zhao, Chang Liu, Zhanpeng Guo, Yajiang Yuan, Haoshen Zhao, Zipeng Zhou, Xifan Mei
Wnt signaling are recognized key factors in neuronal development, cell proliferation and axonal guidance. However, RAGE effect on wnt signaling after spinal cord injury (SCI) are poorly understood. Our study aims to explore RAGE blockade effect on wnt signaling after SCI. We constructed Allen SCI model and micro-injected with RAGE neutralizing antibody or IgG after injury. We determined β-catenin, wnt3a and its receptor frizzled-5 via Western blot. We determined β-catenin/NeuN expression at 2 weeks after SCI via immunofluorescence (IF)...
May 22, 2018: Neurochemical Research
https://www.readbyqxmd.com/read/29789528/yap-dependent-ubiquitination-and-degradation-of-%C3%AE-catenin-mediates-inhibition-of-wnt-signalling-induced-by-physalin-f-in-colorectal-cancer
#4
Chen Chen, Dongrong Zhu, Hao Zhang, Chao Han, Guimin Xue, Tianyu Zhu, Jianguang Luo, Lingyi Kong
Aberrant activation of Wnt/β-catenin signalling is critical in the progression of human cancers, especially colorectal cancer (CRC). Therefore, inhibition of Wnt/β-catenin signalling is a significant potential target for CRC therapy. Here, we identified for the first time that Physalin F (PF), a steroid derivative isolated from Physalis angulate, acts as an antagonist of Wnt/β-catenin signalling. In vitro, PF decreased Wnt3a-induced TOPFlash reporter activity in HEK293T cells and promoted the formation of the β-catenin destruction complex...
May 22, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29789460/frizzled-receptors-as-potential-therapeutic-targets-in-human-cancers
#5
REVIEW
Chui-Mian Zeng, Zhe Chen, Li Fu
Frizzled receptors (FZDs) are a family of seven-span transmembrane receptors with hallmarks of G protein-coupled receptors (GPCRs) that serve as receptors for secreted Wingless-type (WNT) ligands in the WNT signaling pathway. Functionally, FZDs play crucial roles in regulating cell polarity, embryonic development, cell proliferation, formation of neural synapses, and many other processes in developing and adult organisms. In this review, we will introduce the basic structural features and review the biological function and mechanism of FZDs in the progression of human cancers, followed by an analysis of clinical relevance and therapeutic potential of FZDs...
May 22, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29789397/the-wnt-antagonist-and-secreted-frizzled-related-protein-5-implications-on-lipid-metabolism-inflammation-and-type-2-diabetes-mellitus
#6
Ling-Bin Liu, Xiao-Dong Chen, Xiang-Yu Zhou, Qing Zhu
Various reports have suggested that secreted frizzled-related protein 5 (SFRP5) plays a regulatory role in the processes of cellular proliferation and differentiation, by means of inactivating the Wnt/β-catenin signaling pathway. Recently, SFRP5 has been identified as an anti-inflammatory adipokine, which may be induced during preadipocyte proliferation, differentiation, and maturation. This review aims to identify the recent progress in the research and development of SFRP5 that can play a role in influencing lipid metabolism, inflammation and type 2 diabetes mellitus (T2DM)...
May 22, 2018: Bioscience Reports
https://www.readbyqxmd.com/read/29789297/the-duf1669-domain-of-fam83-family-proteins-anchor-casein-kinase-1-isoforms
#7
Luke J Fulcher, Polyxeni Bozatzi, Theresa Tachie-Menson, Kevin Z L Wu, Timothy D Cummins, Joshua C Bufton, Daniel M Pinkas, Karen Dunbar, Sabin Shrestha, Nicola T Wood, Simone Weidlich, Thomas J Macartney, Joby Varghese, Robert Gourlay, David G Campbell, Kevin S Dingwell, James C Smith, Alex N Bullock, Gopal P Sapkota
Members of the casein kinase 1 (CK1) family of serine-threonine protein kinases are implicated in the regulation of many cellular processes, including the cell cycle, circadian rhythms, and Wnt and Hedgehog signaling. Because these kinases exhibit constitutive activity in biochemical assays, it is likely that their activity in cells is controlled by subcellular localization, interactions with inhibitory proteins, targeted degradation, or combinations of these mechanisms. We identified members of the FAM83 family of proteins as partners of CK1 in cells...
May 22, 2018: Science Signaling
https://www.readbyqxmd.com/read/29787999/cell-intrinsic-wnt-%C3%AE-catenin-signaling-activation
#8
Dominic B Bernkopf, Jürgen Behrens
No abstract text is available yet for this article.
May 22, 2018: Aging
https://www.readbyqxmd.com/read/29787989/downregulation-of-microrna-216b-contributes-to-glioma-cell-growth-and-migration-by-promoting-aeg-1-mediated-signaling
#9
Qi Li, Maode Wang, Ning Wang, Jia Wang, Lei Qi, Ping Mao
Accumulating evidence indicates microRNA-216b (miR-216b) plays an important role in the development and progression of various cancers. However, little is known about the function of miR-216b in gliomas. In this study, we aimed to investigate the expression level and functional significance of miR-216b in gliomas. We found that miR-216b was significantly downregulated in glioma specimens and cell lines. Overexpression of miR-216b suppressed the growth and migration of glioma cells, while miR-216b inhibition showed the opposite effects...
May 19, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29787985/rna-binding-protein-lin28b-confers-gastric-cancer-cells-stemness-via-directly-binding-to-nrp-1
#10
Xiaocong Wang, Huihua Hu, Hebo Liu
This work aims to explore the roles and related mechanisms of RNA binding protein Lin28B in gastric cancer cells stemness. We found that Lin28B expression was negatively correlated with the overall survival (OS) of gastric cancer patients, and significantly increased in gastric cancer cells compared with that in gastric epithelial cells. Lin28B overexpression increased spheroid formation, expression of gastric cancer stemness-related markers, and decreased cisplatin sensitivity in gastric cancer cells. Mechanistically, Lin28B could directly bind to NRP-1 3'UTR, thus increasing NRP-1 mRNA stability and expression, and activate the downstream Wnt/β-catenin signaling...
May 19, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29787833/dehydroepiandrosterone-molecular-mechanisms-and-therapeutic-implications-in-osteoarthritis
#11
REVIEW
Kai Huang, Li-Dong Wu
Dehydroepiandrosterone (DHEA), a 19-carbon steroid hormone primarily synthesized in the adrenal gland, exerts a chondroprotective effect against osteoarthritis (OA) and has been considered an effective candidate of disease-modifying OA drugs (DMOADs) that slow disease progression. We and others previously demonstrated that DHEA exerted a beneficial effect on osteoarthritic cartilage by positively modulating the balance between anabolic and catabolic factors (e.g., MMPs/TIMP-1, ADAMTS/TIMP-3 and cysteine proteinases/cystatin C), inhibiting catabolic signaling pathways (e...
May 19, 2018: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29787753/mir-193a-inhibits-osteogenic-differentiation-of-bone-marrow-derived-stroma-cell-via-targeting-hmgb1
#12
Sheng-Nan Wang, Xing-Qi Zhao, Bin Yu, Bo-Wei Wang
BACKGROUND: miR-193a has been shown to be involved in a variety of biological processes, including cell proliferation, differentiation, and apoptosis. However, little is known about how miR-193a regulates osteogenic differentiation. METHODS: We employed RT-qPCR to determine the level of miR-193a and mRNA level of HMGB1 and osteoblast-specific markers (Runx2, ALP, OSX, OCN). Besides, westernblot was used to probe protein level of phosphorylated MAPK family members and β-catenin...
May 19, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29787744/repression-of-map3k1-expression-and-jnk-activity-by-canonical-wnt-signaling
#13
Qinghang Meng, Maureen Mongan, Jingjing Wang, Ying Xia
Morphogenesis is a complex and highly coordinated process orchestrated by temporal spatial activity of developmental pathways. How the different pathways interact to guide the developmental program remains an intriguing and open question. MAP3K1-JNK and Wnt are signaling pathways crucial for embryonic eyelid closure, an epithelial morphogenetic event conserved in mammals. Here we used a mouse model of eyelid development and genetic and biochemistry tools to investigate the relationships between the two pathways...
May 19, 2018: Developmental Biology
https://www.readbyqxmd.com/read/29786763/mir-124-promotes-proliferation-and-neural-differentiation-of-neural-stem-cells-through-targeting-dact1-and-activating-wnt-%C3%AE-catenin-pathways
#14
Shujie Jiao, Yaling Liu, Yaobing Yao, Junfang Teng
Neural stem cells (NSCs) are multipotent and undifferentiated cells with the potential to differentiate into neuronal lineages and gliocytes. NSCs have the ability to generate and regenerate the brain, indicating the possibility of cell-based therapies for neurological disorders. miR-124 has been demonstrated as a modulator in the survival, expansion, and differentiation of NSCs. However, the underlying molecular mechanisms of miR-124 in NSC development are still far from being understood. The expressions of miR-124, dishevelled binding antagonist of beta-catenin 1 (DACT1), ki-67, Nestin, β-tubulin III, glial fibrillary acidic protein (GFAP), β-catenin, cyclinD1, and glycogen synthase kinase-3β (GSK-3β) were examined by qRT-PCR or western blot...
May 21, 2018: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/29786110/multi%C3%A2-layered-prevention-and-treatment-of-chronic-inflammation-organ-fibrosis-and-cancer-associated-with-canonical-wnt-%C3%AE-%C3%A2-catenin-signaling-activation-review
#15
Masaru Katoh
β‑catenin/CTNNB1 is an intracellular scaffold protein that interacts with adhesion molecules (E‑cadherin/CDH1, N‑cadherin/CDH2, VE‑cadherin/CDH5 and α‑catenins), transmembrane‑type mucins (MUC1/CD227 and MUC16/CA125), signaling regulators (APC, AXIN1, AXIN2 and NHERF1/EBP50) and epigenetic or transcriptional regulators (BCL9, BCL9L, CREBBP/CBP, EP300/p300, FOXM1, MED12, SMARCA4/BRG1 and TCF/LEF). Gain‑of‑function CTTNB1 mutations are detected in bladder cancer, colorectal cancer, gastric cancer, liver cancer, lung cancer, pancreatic cancer, prostate cancer and uterine cancer, whereas loss‑of‑function CTNNB1 mutations are also detected in human cancer...
May 17, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29785536/wnt3a-promotes-differentiation-of-human-bone-marrow-derived-mesenchymal-stem-cells-into-cementoblast-like-cells
#16
Yusuke Aida, Hidemi Kurihara, Koichi Kato
Cementum is a calcified, avascular connective tissue that laminates the root of a tooth and plays a pivotal role in the development, homeostasis, and regeneration of a periodontal tissue. As a potential treatment for periodontal tissue defects in the patient with chronic periodontitis, much attention has been paid to tissue engineering combined with mesenchymal stem cells for regenerating periodontal tissues including cementum. However, limited information is available for the molecular factors that have impacts on the differentiation of mesenchymal stem cells into cementoblasts...
May 21, 2018: In Vitro Cellular & Developmental Biology. Animal
https://www.readbyqxmd.com/read/29785050/the-tumor-suppressor-dlc1-inhibits-cancer-progression-and-oncogenic-autophagy-in-hepatocellular-carcinoma
#17
Hui-Ta Wu, Cheng-Rong Xie, Jie Lv, He-Qiang Qi, Fei Wang, Sheng Zhang, Qin-Liang Fang, Fu-Qiang Wang, Yu-Yan Lu, Zhen-Yu Yin
Downregulation of deleted in liver cancer 1 (DLC1) is associated with poor prognosis of various cancers, but its functional mechanisms in hepatocellular carcinoma (HCC) remains unclear. In the present study, we investigated the roles of DLC1 in tumor progression and autophagy of HCC. We found that DLC1 was frequently downregulated in HCC tissues. Underexpression of DLC1 correlated with AFP level, vascular invasion, poor differentiation, and poor prognosis. In vitro assays revealed that DLC1 not only suppressed the proliferation, migration, and invasion of HCC cells, but also inhibited autophagy of HCC cells...
May 21, 2018: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/29785019/cribriform-morular-variant-of-thyroid-carcinoma-a-neoplasm-with-distinctive-phenotype-associated-with-the-activation-of-the-wnt-%C3%AE-catenin-pathway
#18
REVIEW
José Manuel Cameselle-Teijeiro, Diego Peteiro-González, Javier Caneiro-Gómez, María Sánchez-Ares, Ihab Abdulkader, Catarina Eloy, Miguel Melo, Isabel Amendoeira, Paula Soares, Manuel Sobrinho-Simões
Cribriform-morular variant of thyroid carcinoma is classically associated with familial adenomatous polyposis but, it can also occur as a sporadic neoplasm. This neoplasm is much more frequently observed in women than in men (ratio of 61:1). In familial adenomatous polyposis patients, tumors are generally multifocal and/or bilateral (multinodular appearance), whereas in the sporadic cases tumors tend to occur as single nodules. The tumors are well delimited, and characteristically show a blending of follicular, cribriform, papillary, trabecular, solid, and morular patterns...
May 21, 2018: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/29784906/the-anti-cancer-activity-of-an-andrographolide-analogue-functions-through-a-gsk-3%C3%AE-independent-wnt-%C3%AE-catenin-signaling-pathway-in-colorectal-cancer-cells
#19
Somrudee Reabroi, Rungnapha Saeeng, Nittaya Boonmuen, Teerapich Kasemsuk, Witchuda Saengsawang, Kanoknetr Suksen, Weiming Zhu, Pawinee Piyachaturawat, Arthit Chairoungdua
The Wnt/β-catenin signaling pathway plays a key role in the progression of human colorectal cancers (CRCs) and is one of the leading targets of chemotherapy agents developed for CRC. The present study aimed to investigate the anti-cancer effects and molecular mechanisms of 19-O-triphenylmethyl andrographolide (RS-PP-050), an andrographolide analogue and determine its activity in the Wnt/β-catenin pathway. RS-PP-050 was found to potently inhibit the proliferation and survival of HT-29 CRC cells. It induces cell cycle arrest and promotes apoptotic cell death which was associated with the activation of PARP-1 and p53...
May 21, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29784581/how-to-make-a-tongue-cellular-and-molecular-regulation-of-muscle-and-connective-tissue-formation-during-mammalian-tongue-development
#20
REVIEW
Martyn T Cobourne, Sachiko Iseki, Anahid A Birjandi, Hadeel Adel Al-Lami, Christel Thauvin-Robinet, Guilherme M Xavier, Karen J Liu
The vertebrate tongue is a complex muscular organ situated in the oral cavity and involved in multiple functions including mastication, taste sensation, articulation and the maintenance of oral health. Although the gross embryological contributions to tongue formation have been known for many years, it is only relatively recently that the molecular pathways regulating these processes have begun to be discovered. In particular, there is now evidence that the Hedgehog, TGF-Beta, Wnt and Notch signaling pathways all play an important role in mediating appropriate signaling interactions between the epithelial, cranial neural crest and mesodermal cell populations that are required to form the tongue...
May 18, 2018: Seminars in Cell & Developmental Biology
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