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https://www.readbyqxmd.com/read/28727410/exosomes-mediate-epithelium-mesenchyme-crosstalk-in-organ-development
#1
Nan Jiang, Lusai Xiang, Ling He, Guodong Yang, Jinxuan Zheng, Chenglin Wang, Yimei Zhang, Sainan Wang, Yue Zhou, Tzong-Jen Sheu, Jiaqian Wu, Kenian Chen, Paulo G Coelho, Nicky M Tovar, Shin Hye Kim, Mo Chen, Yan-Heng Zhou, Jeremy J Mao
Organ development requires complex signaling by cells in different tissues. Epithelium and mesenchyme interactions are crucial for the development of the skin, hair follicles, kidney, lungs, prostate, major glands and the teeth. Despite myriad literature on cell-cell interactions and ligand-receptor binding, the roles extracellular vesicles in epithelium-mesenchyme interactions during organogenesis are poorly understood. Here, we discovered that ~100 nm exosomes were secreted by the epithelium and mesenchyme of a developing tooth organ, and diffused through the basement membrane...
July 20, 2017: ACS Nano
https://www.readbyqxmd.com/read/28726548/wnt-yap-interactions-during-neural-tissue-patterning-of-human-induced-pluripotent-stem-cells
#2
Julie Bejoy, Liqing Song, Yi Zhou, Yan Li
Human induced pluripotent stem cells (hiPSCs) have special ability to self-assemble into neural spheroids or mini-brain like structures. During the self-assembly process, Wnt signaling plays an important role in regional patterning and establishing positional identity of hiPSC-derived neural progenitors. Recently, the role of Wnt signaling in regulating Yes-associated protein (YAP) expression (nuclear or cytoplasmic), the pivotal regulator during organ growth and tissue generation, has attracted increasing interests...
July 20, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28725522/pathogenetic-analysis-of-sinonasal-teratocarcinosarcomas-reveal-actionable-%C3%AE-catenin-overexpression-and-a-%C3%AE-catenin-mutation
#3
Andrew C Birkeland, Sarah J Burgin, Megan Yanik, Megan V Scott, Carol R Bradford, Jonathan B McHugh, Scott A McLean, Stephen E Sullivan, Jacques E Nor, Erin L McKean, J Chad Brenner
Objective  Sinonasal teratocarcinosarcomas are rare, aggressive tumors of the skull base. Treatment options are limited and outcomes are poor. Little is known in regard to the genetic factors regulating these tumors. Characterization of actionable molecular alterations in these tumors could provide potentially successful therapeutic options. Methods  We performed targeted exome sequencing on an index sinonasal teratocarcinosarcoma specimen to identify potential driver mutations. We performed immunohistochemical stains for β-catenin on paraffin-embedded tissue on the index tumor and a subsequent teratocarcinosarcoma...
August 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/28724663/pd-l1-expression-and-immune-escape-in-melanoma-resistanceto-mapk-inhibitors
#4
Hojabr Kakavand, Robert V Rawson, Gulietta M Pupo, Jean Y H Yang, Alexander M Menzies, Matteo S Carlino, Richard F Kefford, Julie R Howle, Robyn Saw, John F Thompson, James S Wilmott, Georgina V Long, Richard A Scolyer, Helen Rizos
Purpose: To examine the relationship between immune activity, PD-L1 expression and tumor cell signaling, in metastatic melanomas prior to and during treatment with targeted MAPK inhibitors. <p>Experimental design: Thirty-eight tumors from 17 patients treated with BRAF inhibitor (n=12) or combination BRAF/MEK inhibitors (n=5) with known PD-L1 expression were analyzed. RNA expression arrays were performed on all pre-treatment (PRE, n=17), early during treatment (EDT, n=8) and progression (PROG, n=13) biopsies...
July 19, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28724603/effects-of-microrna-136-on-melanoma-cell-proliferation-apoptosis-and-epithelial-mesenchymal-transition-by-targeting-pmel-through-the-wnt-signaling-pathway
#5
Jiu-Jiang Wang, Zhi-Feng Li, Xiao-Jing Li, Zhao Han, Ling Zhang, Zhi-Jun Liu
The study aims to evaluate the effects of miR-136 on the proliferation, apoptosis and epithelial mesenchymal transition (EMT) of melanoma cells by targeting PMEL through the Wnt signaling pathway. After establishment of melanoma mouse models, melanoma (model group) and normal tissues (normal group) were collected. Immunohistochemistry was performed to determine PMEL protein concentration. Mouse melanoma cells were assigned into control, blank, negative control (NC), miR-136 mimics, miR-136 inhibitors, siRNA-PMEL, and miR-136 inhibitors + siRNA-PMEL, LiC1 (Wnt signaling pathway activator) and siRNA-PMEL+ LiCl groups...
July 19, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/28724435/ww-domain-binding-protein-2-an-adaptor-protein-closely-linked-to-the-development-of-breast-cancer
#6
REVIEW
Shuai Chen, Han Wang, Yu-Fan Huang, Ming-Li Li, Jiang-Hong Cheng, Peng Hu, Chuan-Hui Lu, Ya Zhang, Na Liu, Chi-Meng Tzeng, Zhi-Ming Zhang
The WW domain is composed of 38 to 40 semi-conserved amino acids shared with structural, regulatory, and signaling proteins. WW domain-binding protein 2 (WBP2), as a binding partner of WW domain protein, interacts with several WW-domain-containing proteins, such as Yes kinase-associated protein (Yap), paired box gene 8 (Pax8), WW-domain-containing transcription regulator protein 1 (TAZ), and WW-domain-containing oxidoreductase (WWOX) through its PPxY motifs within C-terminal region, and further triggers the downstream signaling pathway in vitro and in vivo...
July 19, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28723729/wnt-signaling-in-cardiovascular-disease-opportunities-and-challenges
#7
Austin Gay, Dwight A Towler
PURPOSE OF REVIEW: Cardiometabolic diseases increasingly afflict our aging, dysmetabolic population. Complex signals regulating low-density lipoprotein receptor-related protein (LRP) and frizzled protein family members - the plasma membrane receptors for the cadre of Wnt polypeptide morphogens - contribute to the control of cardiovascular homeostasis. RECENT FINDINGS: Both canonical (β-catenin-dependent) and noncanonical (β-catenin-independent) Wnt signaling programs control vascular smooth muscle (VSM) cell phenotypic modulation in cardiometabolic disease...
July 18, 2017: Current Opinion in Lipidology
https://www.readbyqxmd.com/read/28723343/%C3%AE-catenin-is-involved-in-oleanolic-acid-dependent-promotion-of-proliferation-in-human-hair-matrix-cells-in-an-in-vitro-organ-culture-model
#8
Ben Liu, Xianyan Chen, Huan Yi, Le Han, Bin Ji, Haiyan Chen, Wenjia Deng, Miaojian Wan
Oleanolic acid (OA), a pentacyclic triterpenoid compound which can be found in >1600 plants, has been shown to promote hair growth. To study the mechanisms of OA on hair growth, we investigated hair follicle (HF) growth on four different concentration OA using human hair follicle organ culture model. We found that HFs treated with 1 or 10μg/mL OA showed statistically enhanced elongation of the hair shaft and anagen-like stage. Moreover, higher positive rate of Ki-67, a matrix cellular marker of proliferation, was detected in the same groups treated with 1 or 10μg/mL than those treated with vehicle...
July 16, 2017: Fitoterapia
https://www.readbyqxmd.com/read/28722335/protective-effects-of-folic-acid-on-pm2-5-induced-cardiac-developmental-toxicity-in-zebrafish-embryos-by-targeting-ahr-and-wnt-%C3%AE-catenin-signal-pathways
#9
Cong Yue, Cheng Ji, Hang Zhang, Leshuai W Zhang, Jian Tong, Yan Jiang, Tao Chen
Our previous observations indicated that extractable organic matter (EOM) from PM2.5 induced malformations in the heart of zebrafish embryos by activating AhR and inhibiting canonical Wnt/β-catenin signal pathway. As a nutritional factor, folic acid (FA) is reported to prevent cardiac defects during embryo development. Hence, we hypothesize that FA may prevent PM2.5-induced heart defects by interfering with AhR and Wnt/β-catenin signaling pathways. Our results showed that FA supplementation alleviated the EOM-induced heart defects in zebrafish embryos, and both AhR inhibitor CH223191 and Wnt activator CHIR99021 enhanced the protective efficiency of FA...
July 19, 2017: Environmental Toxicology
https://www.readbyqxmd.com/read/28720705/conceptual-framework-of-the-eco-physiological-phases-of-insect-diapause-development-justified-by-transcriptomic-profiling
#10
Vladimír Koštál, Tomáš Štětina, Rodolphe Poupardin, Jaroslava Korbelová, Alexander William Bruce
Insects often overcome unfavorable seasons in a hormonally regulated state of diapause during which their activity ceases, development is arrested, metabolic rate is suppressed, and tolerance of environmental stress is bolstered. Diapausing insects pass through a stereotypic succession of eco-physiological phases termed "diapause development." The phasing is varied in the literature, and the whole concept is sometimes criticized as being too artificial. Here we present the results of transcriptional profiling using custom microarrays representing 1,042 genes in the drosophilid fly, Chymomyza costata Fully grown, third-instar larvae programmed for diapause by a photoperiodic (short-day) signal were assayed as they traversed the diapause developmental program...
July 18, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28720477/nanoquinacrine-caused-apoptosis-in-oral-cancer-stem-cells-by-disrupting-the-interaction-between-gli1-and-%C3%AE-catenin-through-activation-of-gsk3%C3%AE
#11
Anmada Nayak, Sumit Siddharth, Sarita Das, Deepika Nayak, Chinmayee Sethy, Chanakya Nath Kundu
Presences of cancer stem cells (CSCs) in a bulk of cancer cells are responsible for tumor relapse, metastasis and drug resistance in oral cancer. Due to high drug efflux, DNA repair and self-renewable capacity of CSCs, the conventional chemotherapeutic agents are unable to kill the CSCs. CSCs utilizes Hedgehog (HH-GLI), WNT-β catenin signalling for its growth and development. GSK3β negatively regulates both the pathways in CSCs. Here, we have shown that a nano-formulated bioactive small molecule inhibitor Quinacrine (NQC) caused apoptosis in oral cancer stem cells (OCSCs; isolated from different oral cancer cells and oral cancer patient derived primary cells) by down regulating WNT-β catenin and HH-GLI components through activation of GSK3β...
July 15, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28720386/cdc42-interacting-protein-4-silencing-relieves-pulmonary-fibrosis-in-stz-induced-diabetic-mice-via-the-wnt-gsk-3%C3%AE-%C3%AE-catenin-pathway
#12
Xiaoping Zhang, Ying Liu, Runxia Shao, Wei Li
Cdc42-interacting protein-4 (CIP4) has been reported to be closely associated with diabetic nephropathy in rat. However, little is known about the correlation between CIP4 and diabetic pulmonary fibrosis (PF) in mice. Here, diabetes was induced by streptozotocin (STZ), and later lung tissue was collected and subjected to hematoxylin and eosin (H & E) staining for morphological examination. The distinct up-regulation of CIP4 was observed in diabetic PF mice. CIP4 silencing increased overall weight and decreased lung weight...
July 15, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28720065/microrna-139-5p-inhibits-bladder-cancer-proliferation-and-self-renewal-by-targeting-the-bmi1-oncogene
#13
Hongbo Luo, Rui Yang, Chun Li, Yongqing Tong, Lingling Fan, Xiuheng Liu, Chuanrui Xu
MiR-139-5p has been reported to be overexpressed in many types of cancers, but its role in bladder cancer has not been elucidated yet. Here, we report that miR-139-5p functions as a tumor suppressor in bladder cancer and inhibits the cancer stem cell self-renewal by targeting Bmi1 directly. We found that miR-139-5p expression was significantly downregulated in the bladder cancer specimens compared with that in adjacent normal tissues. In vitro, restoration of miR-139-5p expression significantly inhibited the proliferation of bladder cancer cells...
July 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28718798/co-expression-network-and-pathway-analyses-reveal-important-modules-of-mirnas-regulating-milk-yield-and-component-traits
#14
Duy N Do, Pier-Luc Dudemaine, Ran Li, Eveline M Ibeagha-Awemu
Co-expression network analyses provide insights into the molecular interactions underlying complex traits and diseases. In this study, co-expression network analysis was performed to detect expression patterns (modules or clusters) of microRNAs (miRNAs) during lactation, and to identify miRNA regulatory mechanisms for milk yield and component traits (fat, protein, somatic cell count (SCC), lactose, and milk urea nitrogen (MUN)) via miRNA target gene enrichment analysis. miRNA expression (713 miRNAs), and milk yield and components (Fat%, Protein%, lactose, SCC, MUN) data of nine cows at each of six different time points (day 30 (D30), D70, D130, D170, D230 and D290) of an entire lactation curve were used...
July 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28718684/role-of-gsk-3%C3%AE-in-regulation-of-canonical-wnt-%C3%AE-catenin-signaling-and-pi3-k-akt-oncogenic-pathway-in-colon-cancer
#15
Shelly Jain, Preety Ghanghas, Chandan Rana, S N Sanyal
Non-steroidal anti-inflammatory drugs (NSAIDs) are emerging as novel chemopreventive agents because of their ability in blocking cellular proliferation, and thereby tumor development, and also by promoting apoptosis. GSK-3β, a serine threonine kinase and a negative regulator of the oncogenic Wnt/β-catenin signaling pathway, plays a critical role in the regulation of oncogenesis. Celecoxib and etoricoxib, the two cyclooxygenase-2 (COX-2) selective NSAIDs, and Diclofenac, a preferential COX-2 inhibitory NSAID, had shown uniformly the chemopreventive and anti-neoplastic effects in the early stage of colon cancer by promoting apoptosis as well as an over-expression of GSK-3β while down-regulating the PI3-K/Akt oncogenic pathway...
July 18, 2017: Cancer Investigation
https://www.readbyqxmd.com/read/28718442/wnt-planar-cell-polarity-signaling-new-opportunities-for-cancer-treatment
#16
REVIEW
Avais M Daulat, Jean-Paul Borg
Cancer cells are addicted to a large spectrum of extracellular cues implicated in initiation, stem cell renewal, tumor growth, dissemination in the body, and resistance to treatment. Wingless/Int-1 (Wnt) ligands and their associated signaling cascades contribute to most of these processes, paving the way for opportunities in therapeutic development. The developmental Wnt/planar cell polarity (PCP) pathway is the most recently described branch of Wnt signaling strongly implicated in cancer development at early and late stages...
February 2017: Trends in Cancer
https://www.readbyqxmd.com/read/28718366/long-non-coding-rna-ccat2-promotes-cell-proliferation-and-invasion-through-regulating-wnt-%C3%AE-catenin-signaling-pathway-in-clear-cell-renal-cell-carcinoma
#17
Jian-Lin Huang, Yong Liao, Ming-Xing Qiu, Jun Li, Yu An
Clear cell renal cell carcinoma (ccRCC) is a common urologic malignancy. Long non-coding RNA colon cancer-associated transcript 2 (CCAT2) has been suggested as serving pivotal roles in tumorigenesis. However, the clinical significance and biological role of CCAT2 in ccRCC remains elusive. The purpose of this study is to identify the function of CCAT2 in ccRCC and its possible molecular mechanism. Expression of CCAT2 was analyzed in 61 ccRCC tissues and two ccRCC cell lines (786-O and ACHN) by quantitative reverse transcription polymerase chain reaction...
July 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28717346/inflammatory-wnt5a-signalling-pathways-affecting-barrier-function-of-human-vascular-endothelial-cells
#18
Tom Skaria, Gabriele Schoedon
Wnt5A is a chemokine secreted by inflammatory-activated human macrophages that sustains their inflammatory response in an autocrine manner. High levels of Wnt5A are found in sera of patients with sepsis and septic shock. Here, we comment on recently reported Wnt5A signalling pathways in human vascular endothelial cells (VEC). In human VEC, Wnt5A regulates cytoskeleton remodelling and barrier function through Ryk receptor and Rho-associated protein serine/threonine kinase, targeting LIMK2 and CFL1 involved in actin polymerisation...
2017: Journal of Inflammation
https://www.readbyqxmd.com/read/28717180/a-three-mirnas-signature-predicts-survival-in-cervical-cancer-using-bioinformatics-analysis
#19
Bin Liang, Yunhui Li, Tianjiao Wang
Growing evidences showed that a large number of miRNAs were abnormally expressed in cervical cancer tissues and played irreplaceable roles in tumorigenesis, progression and metastasis. The aim of the present study was to identify the differential miRNAs expression between cervical cancer and normal cervical tissues by analyzing the high-throughput miRNA data downloaded from TCGA database. Additionally, we evaluated the prognostic values of the differentially expressed miRNAs and constructed a three-miRNA signature that could effectively predict patient survival...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28716720/met-signaling-mediates-intestinal-crypt-villus-development-regeneration-and-adenoma-formation-and-is-promoted-by-stem-cell-cd44-isoforms
#20
Sander P J Joosten, Jurrit Zeilstra, Harmen van Andel, R Clinton Mijnals, Joost Zaunbrecher, Annet A M Duivenvoorden, Marc van de Wetering, Hans Clevers, Marcel Spaargaren, Steven T Pals
BACKGROUND & AIMS: Resistance of metastatic human colorectal cancer cells to drugs that block epidermal growth factor receptor (EGFR) signaling could be caused by aberrant activity of other receptor tyrosine kinases, activating overlapping signaling pathways. One of these receptor tyrosine kinases could be MET, the receptor for hepatocyte growth factor (HGF). We investigated how MET signaling, and its interaction with CD44 (a putative MET co-receptor regulated by Wnt signaling and highly expressed by intestinal stem cells [ISCs] and adenomas) affects intestinal homeostasis, regeneration, and adenoma formation in mini-gut organoids and mice...
July 14, 2017: Gastroenterology
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