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hippo pathway

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https://www.readbyqxmd.com/read/28634071/the-novel-yap-target-gene-sgk1-upregulates-taz-activity-by-blocking-gsk3%C3%AE-mediated-taz-destabilization
#1
Geon Yoo, Tackhoon Kim, Chaeuk Chung, Deog-Su Hwang, Dae-Sik Lim
YAP (Yes-associated protein) and TAZ (transcription activator with PDZ binding motif) are important in tissue regeneration and cancer development, highlighting the importance of discovering partners that regulate their oncogenicity. SGK1 (serum/glucocorticoid regulated kinase 1), initially identified as a homolog of Akt in phosphoinositide 3-kinase signaling, acts as a serine/threonine protein kinase in multiple oncogenic pathways. However, possible links between SGK1 and Hippo-YAP/TAZ signaling remain unexplored...
June 17, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28620131/exosomes-containing-differential-expression-of-microrna-and-mrna-in-osteosarcoma-that-can-predict-response-to-chemotherapy
#2
Ji-Feng Xu, Ya-Ping Wang, Shui-Jun Zhang, Yu Chen, Hai-Feng Gu, Xiao-Fan Dou, Bing Xia, Qing Bi, Shun-Wu Fan
A major challenge in osteosarcoma (OS) is the selection of the most effective chemotherapeutic agents for individual patients, while the administration of ineffective chemotherapy increases mortality and decreases quality of life in patients. This emphasizes the need to evaluate every patient's probability of responding to each chemotherapeutic agent. We developed a profiling strategy for serum exosomal microRNAs and mRNAs in OS patients with differential chemotherapeutic responses. Twelve miRNAs were up regulated and 18 miRNAs were under regulated significantly in OS patient with poor chemotherapeutic response when compared with those in good chemotherapeutic response (p<0...
June 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28620086/a-genetic-screen-reveals-an-unexpected-role-for-yorkie-signaling-in-jak-stat-dependent-hematopoietic-malignancies-in-drosophila-melanogaster
#3
Abigail M Anderson, Alessandro A Bailetti, Elizabeth Rodkin, Atish De, Erika A Bach
A gain-of-function mutation in the tyrosine kinase JAK2 (JAK2(V617F) ) causes human myeloproliferative neoplasms (MPNs). These patients present with high numbers of myeloid lineage cells and have numerous complications. Since current MPN therapies are not curative, there is a need to find new regulators and targets of JAK/STAT signaling that may represent additional clinical interventions. Drosophila melanogaster offers a low complexity model to study MPNs as JAK/STAT signaling is simplified with only one JAK (Hopscotch (Hop)) and one STAT (Stat92E)...
June 15, 2017: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/28619819/yorkie-and-hedgehog-independently-restrict-bmp-production-in-escort-cells-to-permit-germline-differentiation-in-the-drosophila-ovary
#4
Jianhua Huang, Amy Reilein, Daniel Kalderon
Multiple signaling pathways guide the behavior and differentiation of both germline stem cells (GSCs) and somatic stem cells (FSCs) in the Drosophila germarium, necessitating careful control of signal generation, range and responses. Signal integration involves Escort Cells (ECs), which promote differentiation of the GSC derivatives they envelop, provide niche signals for FSCs and derive directly from FSCs in adults. Hedgehog (Hh) signaling induces the Hippo pathway effector Yorkie (Yki) to promote proliferation and maintenance of FSCs but Hh also signals to ECs, which are quiescent...
June 15, 2017: Development
https://www.readbyqxmd.com/read/28617839/comparative-transcriptomes-analysis-of-the-wing-disc-between-two-silkworm-strains-with-different-size-of-wings
#5
Jing Zhang, Danso Blessing, Chenyu Wu, Na Liu, Juan Li, Sheng Qin, Muwang Li
Wings of Bombyx mori (B. mori) develop from the primordium, and different B. mori strains have different wing types. In order to identify the key factors influencing B. mori wing development, we chose strains P50 and U11, which are typical for normal wing and minute wing phenotypes, respectively. We dissected the wing disc on the 1st-day of wandering stage (P50D1 and U11D1), 2nd-day of wandering stage (P50D2 and U11D2), and 3rd-day of wandering stage (P50D3 and U11D3). Subsequently, RNA-sequencing (RNA-Seq) was performed on both strains in order to construct their gene expression profiles...
2017: PloS One
https://www.readbyqxmd.com/read/28616573/yap-and-the-hippo-pathway-in-pediatric-cancer
#6
REVIEW
Atif A Ahmed, Abdalla D Mohamed, Melissa Gener, Weijie Li, Eugenio Taboada
The Hippo pathway is an important signaling pathway that controls cell proliferation and apoptosis. It is evolutionarily conserved in mammals and is stimulated by cell-cell contact, inhibiting cell proliferation in response to increased cell density. During early embryonic development, the Hippo signaling pathway regulates organ development and size, and its functions result in the coordinated balance between proliferation, apoptosis, and differentiation. Its principal effectors, YAP and TAZ, regulate signaling by the embryonic stem cells and determine cell fate and histogenesis...
2017: Molecular & Cellular Oncology
https://www.readbyqxmd.com/read/28615294/pituitary-stem-cell-regulation-who-is-pulling-the-strings
#7
Benoit Cox, Heleen Roose, Annelies Vennekens, Hugo Vankelecom
The pituitary gland plays a pivotal role in the endocrine system, steering fundamental processes of growth, metabolism, reproduction and coping with stress. The adult pituitary contains resident stem cells which are highly quiescent in homeostatic conditions. However, the cells show marked signs of activation during processes of increased cell remodeling in the gland, including maturation at neonatal age, adaptation to physiological demands, regeneration upon injury, and growth of local tumors. Although functions of pituitary stem cells are slowly but gradually uncovered, their regulation largely remains virgin territory...
June 14, 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/28612137/cross-talk-between-the-crumbs-complex-and-hippo-signaling-in-renal-epithelial-cells
#8
REVIEW
U Michgehl, H Pavenstädt, B Vollenbröker
Cell polarity has a crucial role in organizing cells into tissues and in mediating transport processes and cell-cell communication. Especially the cells of the nephron require apicobasal polarity to establish and maintain their barrier function. The Crumbs complex including the integral membrane protein Crumbs, as well as Pals1 and Patj, is essential for the establishment of apicobasal polarity. The interactions of the core proteins and the interplay with other processes have been characterized in various epithelial cell lines in detail...
June 13, 2017: Pflügers Archiv: European Journal of Physiology
https://www.readbyqxmd.com/read/28611255/a-kinome-rnai-screen-in-drosophila-identifies-novel-genes-interacting-with-lgl-apkc-and-crb-cell-polarity-genes-in-epithelial-tissues
#9
Linda M Parsons, Nicola A Grzeschik, Kasun Amaratunga, Peter Burke, Leonie M Quinn, Helena E Richardson
In both Drosophila melanogaster and mammalian systems, epithelial structure and underlying cell polarity are essential for proper tissue morphogenesis and organ growth. Cell polarity interfaces with multiple cellular processes that are regulated by the phosphorylation status of large protein networks. To gain insight into the molecular mechanisms that coordinate cell polarity with tissue growth, we screened a boutique collection of RNAi stocks targeting the kinome for their capacity to modify Drosophila 'cell polarity' eye and wing phenotypes...
June 13, 2017: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/28606863/transcriptome-analysis-of-the-immune-reaction-of-the-pearl-oyster-pinctada-fucata-to-xenograft-from-pinctada-maxima
#10
Jinfen Wei, Sigang Fan, Baosuo Liu, Bo Zhang, Jiaqi Su, Dahui Yu
The pearl oyster Pinctada maxima exhibits great difficulty to culture pearls through nuclear insertion with an allograft, but it is easy for P. fucata to culture pearls after allografting. If P. fucata could be used as a surrogate mother to culture P. maxima pearls, it would benefit the pearl culture industry of P. maxima. However, this is blocked by the immune rejection of P. fucata against P. maxima mantle grafts. In this study, the immune responses of P. fucata hemocyte to allograft and xenograft were investigated after transplantation by transcriptome analysis...
June 9, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28602051/yes-associated-protein-expression-is-correlated-to-the-differentiation-of-prostate-adenocarcinoma
#11
Myung-Giun Noh, Sung Sun Kim, Eu Chang Hwang, Dong Deuk Kwon, Chan Choi
Background: Yes-associated protein (YAP) in the Hippo signaling pathway is a growth control pathway that regulates cell proliferation and stem cell functions. Abnormal regulation of YAP was reported in human cancers including liver, lung, breast, skin, colon, and ovarian cancer. However, the function of YAP is not known in prostate adenocarcinoma. The purpose of this study was to investigate the role of YAP in tumorigenesis, differentiation of the carcinoma, and prognosis of prostate adenocarcinoma...
June 9, 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28601384/polycystin-and-calcium-signaling-in-cell-death-and-survival
#12
REVIEW
Fernanda O Lemos, Barbara E Ehrlich
Mutations in polycystin-1 (PC1) and polycystin-2 (PC2) result in a commonly occurring genetic disorder, called Autosomal Dominant Polycystic Kidney Disease (ADPKD), that is characterized by the formation and development of kidney cysts. Epithelial cells with loss-of-function of PC1 or PC2 show higher rates of proliferation and apoptosis and reduced autophagy. PC1 is a large multifunctional transmembrane protein that serves as a sensor that is usually found in complex with PC2, a calcium (Ca(2+))-permeable cation channel...
May 24, 2017: Cell Calcium
https://www.readbyqxmd.com/read/28600435/rassf4-controls-soce-and-er-pm-junctions-through-regulation-of-pi-4-5-p2
#13
Yu-Ju Chen, Chi-Lun Chang, Wan-Ru Lee, Jen Liou
RAS association domain family 4 (RASSF4) is involved in tumorigenesis and regulation of the Hippo pathway. In this study, we identify new functional roles of RASSF4. First, we discovered that RASSF4 regulates store-operated Ca(2+) entry (SOCE), a fundamental Ca(2+) signaling mechanism, by affecting the translocation of the endoplasmic reticulum (ER) Ca(2+) sensor stromal interaction molecule 1 (STIM1) to ER-plasma membrane (PM) junctions. It was further revealed that RASSF4 regulates the formation of ER-PM junctions and the ER-PM tethering function of extended synaptotagmins E-Syt2 and E-Syt3...
June 9, 2017: Journal of Cell Biology
https://www.readbyqxmd.com/read/28600393/cell-junctions-in-hippo-signaling
#14
Ruchan Karaman, Georg Halder
The Hippo signal transduction pathway is an important regulator of organ growth and cell differentiation, and its deregulation contributes to the development of cancer. The activity of the Hippo pathway is strongly dependent on cell junctions, cellular architecture, and the mechanical properties of the microenvironment. In this review, we discuss recent advances in our understanding of how cell junctions transduce signals from the microenvironment and control the activity of the Hippo pathway. We also discuss how these mechanisms may control organ growth during development and regeneration, and how defects in them deregulate Hippo signaling in cancer cells...
June 9, 2017: Cold Spring Harbor Perspectives in Biology
https://www.readbyqxmd.com/read/28599310/long-non-coding-rnas-could-act-as-vectors-for-paternal-heredity-of-high-fat-diet-induced-obesity
#15
Tian An, Teng Zhang, Fei Teng, Jia-Cheng Zuo, Yan-Yun Pan, Yu-Fei Liu, Jia-Nan Miao, Yu-Jie Gu, Na Yu, Dan-Dan Zhao, Fang-Fang Mo, Si-Hua Gao, Guangjian Jiang
Long non-coding RNAs (lncRNAs) play an important role in epigenetic regulation, and abnormalities may lead to male infertility. To investigate whether lncRNAs are involved in intergenerational inheritance of obesity and obesity-induced decline in fertility, we divided mice into obesity (F0 mice fed a high-fat diet, F0-HFD) and non-obese (F0 mice fed normal chow, F0-NC) model groups and their male offspring (F1-HFD and F1-NC, respectively). We examined the differences in the expression levels of lncRNAs and mRNAs in the F0-HFD/F0-NC and F1-HFD/F1-NC groups...
May 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/28597297/intrinsic-protein-disorder-in-oncogenic-kras-signaling
#16
REVIEW
Ruth Nussinov, Hyunbum Jang, Chung-Jung Tsai, Tsung-Jen Liao, Shuai Li, David Fushman, Jian Zhang
How Ras, and in particular its most abundant oncogenic isoform K-Ras4B, is activated and signals in proliferating cells, poses some of the most challenging questions in cancer cell biology. In this paper, we ask how intrinsically disordered regions in K-Ras4B and its effectors help promote proliferative signaling. Conformational disorder allows spanning long distances, supports hinge motions, promotes anchoring in membranes, permits segments to fulfil multiple roles, and broadly is crucial for activation mechanisms and intensified oncogenic signaling...
June 8, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28596500/the-tumor-suppressor-rassf1a-induces-the-yap1-target-gene-ankrd1-that-is-epigenetically-inactivated-in-human-cancers-and-inhibits-tumor-growth
#17
Adriana P Jiménez, Annalena Traum, Thomas Boettger, Holger Hackstein, Antje M Richter, Reinhard H Dammann
The Hippo pathway regulates organ size, growth and comprises several tumor related factors, including the oncoprotein YAP1 and the tumor suppressor RASSF1A. RASSF1A is frequently epigenetically inactivated in cancer. In our study, we analyzed the effect of RASSF1A on the function of YAP1. Expression of YAP1 resulted in the downregulation of several tumor suppressor genes and induction of S-phase. Co-expression with RASSF1A normalized the expression levels of these tumor suppressors and induced a G0-G1 arrest and apoptosis...
May 23, 2017: Oncotarget
https://www.readbyqxmd.com/read/28594854/identification-of-key-micrornas-and-genes-in-preeclampsia-by-bioinformatics-analysis
#18
Shouling Luo, Nannan Cao, Yao Tang, Weirong Gu
Preeclampsia is a leading cause of perinatal maternal-foetal mortality and morbidity. The aim of this study is to identify the key microRNAs and genes in preeclampsia and uncover their potential functions. We downloaded the miRNA expression profile of GSE84260 and the gene expression profile of GSE73374 from the Gene Expression Omnibus database. Differentially expressed miRNAs and genes were identified and compared to miRNA-target information from MiRWalk 2.0, and a total of 65 differentially expressed miRNAs (DEMIs), including 32 up-regulated miRNAs and 33 down-regulated miRNAs, and 91 differentially expressed genes (DEGs), including 83 up-regulated genes and 8 down-regulated genes, were identified...
2017: PloS One
https://www.readbyqxmd.com/read/28593479/rna-binding-protein-dnd1-inhibits-epithelial-mesenchymal-transition-and-cancer-stem-cell-related-traits-on-hepatocellular-carcinoma-cells
#19
Weiling Xu, Fangchao Gong, Ting Zhang, Baorong Chi, Jingyu Wang
OBJECTIVES: To investigate the roles of Dead end 1 (Dnd1) in modulating cancer stem cell-related traits of hepatocellular carcinoma (HCC). RESULTS: Dead end (Dnd1) inhibited spheroid formation, suppressed the expression of stemness-related genes, and increased sensitivity to sorafenib in HCC cells. Mechanistically, Dnd1 could bind to 3'-UTR of LATS2, the key kinase of Hippo pathway, thus elevating LATS2 mRNA stability and its expression, subsequently leading to phosphorylation of YAP and its cytoplasmic retention...
June 7, 2017: Biotechnology Letters
https://www.readbyqxmd.com/read/28591724/protein-salvador-homolog-1-acts-as-a-tumor-suppressor-and-is-modulated-by-hypermethylation-in-pancreatic-ductal-adenocarcinoma
#20
Lei Wang, Mei Wang, Chenxi Hu, Pengping Li, Yun Qiao, Youyou Xia, Liang Liu, Xiaodong Jiang
Salvador (SAV) is a gene product that contains two protein-protein interaction modules known as WW domains and is believed to act as a scaffolding protein for Hippo and Warts. SAV1 is the human homolog of Salvador, which is the most well characterized upstream signaling component of Hippo pathway. Although its role in some tumors is known, SAV1 function in other types of tumors, including pancreatic tumor, is still obscure. Here, we determined the role of SAV1 in pancreatic ductal adenocarcinoma (PDAC) development and progression...
May 18, 2017: Oncotarget
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