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https://www.readbyqxmd.com/read/28550050/loss-of-hippo-signaling-promotes-polyploidy-and-tumorigenesis
#1
(no author information available yet)
YAP activates AKT signaling to promote mitotic arrest, polyploidy, and hepatocellular carcinoma.
May 26, 2017: Cancer Discovery
https://www.readbyqxmd.com/read/28549066/alternative-exon-definition-events-control-the-choice-between-nuclear-retention-and-cytoplasmic-export-of-u11-u12-65k-mrna
#2
Jens Verbeeren, Bhupendra Verma, Elina H Niemelä, Karen Yap, Eugene V Makeyev, Mikko J Frilander
Cellular homeostasis of the minor spliceosome is regulated by a negative feed-back loop that targets U11-48K and U11/U12-65K mRNAs encoding essential components of the U12-type intron-specific U11/U12 di-snRNP. This involves interaction of the U11 snRNP with an evolutionarily conserved splicing enhancer giving rise to unproductive mRNA isoforms. In the case of U11/U12-65K, this mechanism controls the length of the 3' untranslated region (3'UTR). We show that this process is dynamically regulated in developing neurons and some other cell types, and involves a binary switch between translation-competent mRNAs with a short 3'UTR to non-productive isoforms with a long 3'UTR that are retained in the nucleus or/and spliced to the downstream amylase locus...
May 26, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28544907/micrornas-that-affect-the-fanconi-anemia-brca-pathway-are-downregulated-in-imatinib-resistant-chronic-myeloid-leukemia-patients-without-detectable-bcr-abl-kinase-domain-mutations
#3
E Yap, Z A Norziha, A Simbun, N R Tumian, S K Cheong, C F Leong, C L Wong
Chronic myeloid leukemia (CML) patients who do not achieve landmark responses following treatment with imatinib mesylate (IM) are considered IM-resistant. Although IM-resistance can be due to BCR-ABL kinase domain (KD) mutations, many IM-resistant patients do not have detectable BCR-ABL KD mutations. MicroRNAs (miRNAs) are short non-coding RNAs that control gene expression. To investigate the role of miRNAs in IM-resistance, we recruited 8 chronic phase CML patients with IM-resistance who tested negative for BCR-ABL KD mutations and 2 healthy normal controls...
May 18, 2017: Leukemia Research
https://www.readbyqxmd.com/read/28544881/mammalian-systems-biotechnology-reveals-global-cellular-adaptations-in-a-recombinant-cho-cell-line
#4
Faraaz Noor Khan Yusufi, Meiyappan Lakshmanan, Ying Swan Ho, Bernard Liat Wen Loo, Pramila Ariyaratne, Yuansheng Yang, Say Kong Ng, Tessa Rui Min Tan, Hock Chuan Yeo, Hsueh Lee Lim, Sze Wai Ng, Ai Ping Hiu, Chung Ping Chow, Corrine Wan, Shuwen Chen, Gavin Teo, Gao Song, Ju Xin Chin, Xiaoan Ruan, Ken Wing Kin Sung, Wei-Shou Hu, Miranda Gek Sim Yap, Muriel Bardor, Niranjan Nagarajan, Dong-Yup Lee
Effective development of host cells for therapeutic protein production is hampered by the poor characterization of cellular transfection. Here, we employed a multi-omics-based systems biotechnology approach to elucidate the genotypic and phenotypic differences between a wild-type and recombinant antibody-producing Chinese hamster ovary (CHO) cell line. At the genomic level, we observed extensive rearrangements in specific targeted loci linked to transgene integration sites. Transcriptional re-wiring of DNA damage repair and cellular metabolism in the antibody producer, via changes in gene copy numbers, was also detected...
May 24, 2017: Cell Systems
https://www.readbyqxmd.com/read/28544752/enantioselective-nickel-catalyzed-intramolecular-allylic-alkenylations-enabled-by-reversible-alkenylnickel-e-z-isomerization
#5
Connor Yap, Gabriel Mj Lenagh-Snow, Somnath N Karad, William Lewis, Louis J Diorazio, Hon Wai Lam
Enantioselective nickel-catalyzed arylative cyclizations of substrates containing a Z-allylic phosphate tethered to an alkyne are described. These reactions give multisubstituted chiral aza- and carbocycles, and are initiated by the addition of an arylboronic acid to the alkyne, followed by cyclization of the resulting alkenylnickel species onto the allylic phosphate. The reversible E/Z isomerization of the alkenylnickel species is essential for the success of the reactions.
May 24, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28544285/salmonella-typhi-genomics-envisaging-the-future-of-typhoid-eradication
#6
REVIEW
Kien-Pong Yap, Kwai Lin Thong
Next-generation whole genome sequencing has revolutionized the study of infectious diseases in recent years. The availability of genome sequences and its understanding have transformed the field of molecular microbiology, epidemiology, infection treatments and vaccine developments. We review the key findings of the publicly accessible genomes of Salmonella enterica serovar Typhi since the first complete genome to the most recent release of thousands of S. typhi genomes, which remarkably shape the genomic research of S...
May 24, 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/28544056/exploring-the-knowledge-attitudes-and-needs-of-advance-care-planning-in-older-chinese-australians
#7
S S Yap, K Chen, K M Detering, S A Fraser
AIMS AND OBJECTIVES: The purpose of this study was to identify factors that influence the engagement of Chinese-Australians with advance care planning (ACP). BACKGROUND: Despite the benefits of ACP there is a low prevalence of ACP in the Chinese-Australian community. Reasons for this are often cited as cultural considerations and taboos surrounding future medical planning and death, however, other logistical factors may also be important. DESIGN: This qualitative study used a thematic analysis grounded theory approach to explore facilitators and barriers to engagement in ACP...
May 23, 2017: Journal of Clinical Nursing
https://www.readbyqxmd.com/read/28543074/wwc3-regulates-the-wnt-and-hippo-pathways-via-dvls-and-lats1-to-suppress-lung-cancer-invasion-and-metastasis
#8
Qiang Han, Xuyong Lin, Xiupeng Zhang, Guiyang Jiang, Yong Zhang, Yuan Miao, Xuezhu Rong, Xiaoying Zheng, Yong Han, Xu Han, Jingjing Wu, Joachim Kremerskothen, Enhua Wang
The scaffolding protein WWC (WW and C2-domain containing) family is known to regulate cell proliferation and organ size via the Hippo signalling pathway. However, the expression level of WWC3 in human tumours and the mechanisms underlying its role in cellular signal transduction have not yet been reported. Herein, we explored the potential roles of WWC3 in lung cancer cells and the corresponding molecular mechanisms. We found low WWC3 expression in both lung cancer cell lines and lung cancer specimens, which was associated with low differentiation, advanced p-TNM stage, positive lymph node metastasis, and poor prognosis in patients with lung cancer...
May 25, 2017: Journal of Pathology
https://www.readbyqxmd.com/read/28538673/breast-cancer-exploring-the-facts-and-holistic-needs-during-and-beyond-treatment
#9
REVIEW
Zhi Xuan Ng, Mei Shan Ong, Tamilarasi Jegadeesan, Shuo Deng, Celestial T Yap
Breast cancer patients face challenges throughout the journey of diagnosis, treatment, post-treatment, and recovery. The breast cancer patient is exposed to a multidisciplinary team including doctors, nurses, therapists, counselors, and psychologists. While the team assembled together aims to address multiple facets in breast cancer care, the sub-specialized nature of individual professional practices may constrain the overview of patients' holistic needs and a comprehensive approach to cancer management. This paper aims to provide an overview of the holistic needs of breast cancer patients at each stage of their cancer journey, addressing their complex physical, psychological, and social needs...
May 24, 2017: Healthcare (Basel, Switzerland)
https://www.readbyqxmd.com/read/28538662/maternal-factors-that-induce-epigenetic-changes-contribute-to-neurological-disorders-in-offspring
#10
REVIEW
Avijit Banik, Deepika Kandilya, Seshadri Ramya, Walter Stünkel, Yap Seng Chong, S Thameem Dheen
It is well established that the regulation of epigenetic factors, including chromatic reorganization, histone modifications, DNA methylation, and miRNA regulation, is critical for the normal development and functioning of the human brain. There are a number of maternal factors influencing epigenetic pathways such as lifestyle, including diet, alcohol consumption, and smoking, as well as age and infections (viral or bacterial). Genetic and metabolic alterations such as obesity, gestational diabetes mellitus (GDM), and thyroidism alter epigenetic mechanisms, thereby contributing to neurodevelopmental disorders (NDs) such as embryonic neural tube defects (NTDs), autism, Down's syndrome, Rett syndrome, and later onset of neuropsychological deficits...
May 24, 2017: Genes
https://www.readbyqxmd.com/read/28538170/yap-regulates-actin-dynamics-through-arhgap29-and-promotes-metastasis
#11
Yiting Qiao, Jianxiang Chen, Ying Bena Lim, Megan Louise Finch-Edmondson, Veerabrahma Pratap Seshachalam, Lei Qin, Tingting Jiang, Boon Chuan Low, Himanshu Singh, Chwee Teck Lim, Marius Sudol
Yes-associated protein (YAP) is regulated by mechanical cues via the interaction of the Hippo pathway with cytoskeleton. Previous studies showed that YAP plays a role in regulating the actomyosin network by suppressing Rho GTPase in medaka fish. Here, we identify Rho GTPase activating protein 29 (ARHGAP29) as a transcriptional target of YAP in a human gastric cancer cell line. YAP promotes the expression of ARHGAP29 to suppress the RhoA-LIMK-cofilin pathway, destabilizing F-actin. The overexpression of YAP causes cytoskeletal rearrangement by altering the dynamics of F-actin/G-actin turnover, thus promoting migration...
May 23, 2017: Cell Reports
https://www.readbyqxmd.com/read/28537892/effects-and-related-mechanisms-of-serotonin-on-malignant-biological-behavior-of-hepatocellular-carcinoma-via-regulation-of-yap
#12
Sushun Liu, Runchen Miao, Mimi Zhai, Qing Pang, Yan Deng, Sinan Liu, Kai Qu, Chang Liu, Jingyao Zhang
5-hydroxytryptamine (5-HT, serotonin) and Yes-associated protein (Yap), which act as a mitogen and an oncogene, respectively, play an important role in tumors. Here, we investigated whether 5-HT could affect the hepatocarcinogenic process via promoting the activation and expression of Yap, as well as the possible underlying molecular mechanisms. We found that 5-HT promoted hepatoma cell proliferation, invasion and metastasis via regulating Yap expression in vitro and in vivo, and Yap knockdown had opposite effects...
May 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28535002/hsa-mir-485-5p-reverses-epithelial-to-mesenchymal-transition-and-promotes-cisplatin-induced-cell-death-by-targeting-pak1-in-oral-tongue-squamous-cell-carcinoma
#13
Xiu-Juan Lin, Chang-Li He, Ting Sun, Xue-Jing Duan, Yi Sun, Shi-Jiang Xiong
Oral squamous cell carcinoma (OSCC) is currently a highly prevalent disease worldwide. Cisplatin (CDDP) is widely used for the chemotherapy of OSCC. Yet, the molecular mechanisms responsible for cisplatin resistance have not been fully elucidated. In this study, we showed that overexpression of p21 (RAC1) activated kinase 1 (PAK1) induced epithelial to mesenchymal transition (EMT) and significantly promoted the invasion and migration of oral squamous cell carcinoma SCC25 cells. Emerging evidence indicates a strong link between resistance to therapy and the induction of EMT in cancer...
May 16, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28534032/cooking-fuel-and-respiratory-symptoms-among-people-living-with-hiv-in-rural-uganda
#14
Crystal M North, Linda Valeri, Peter W Hunt, A Rain Mocello, Jeffrey N Martin, Yap Boum, Jessica E Haberer, David R Bangsberg, David C Christiani, Mark J Siedner
Household air pollution (HAP) and chronic HIV infection are each associated with significant respiratory morbidity. Little is known about relationships between HAP and respiratory symptoms among people living with HIV. The objective of this study was to investigate the relationship between cooking fuel type and chronic respiratory symptoms in study participants from the Uganda AIDS Rural Treatment Outcomes Study. Study participants were enrolled at the time of antiretroviral therapy initiation and seen quarterly from 2005 to 2014 for health-focused questionnaires, CD4 count and HIV viral load...
April 2017: ERJ Open Research
https://www.readbyqxmd.com/read/28533437/metformin-inhibits-cellular-proliferation-and-bioenergetics-in-colorectal-cancer-patient-derived-xenografts
#15
Nur-Afidah Mohamed Suhaimi, Wai Min Phyo, Hao Yun Yap, Sharon Heng Yee Choy, Xiaona Wei, Yukti Choudhury, Wai Jin Tan, Luke Anthony Peng Yee Tan, Roger Sik Yin Foo, Suzanne Hui San Tan, Zenia Tiang, Chin Fong Wong, Poh Koon Koh, Min-Han Tan
There is increasing pre-clinical evidence suggesting that metformin, an anti-diabetic drug, has anti-cancer properties against various malignancies including colorectal cancer (CRC). However, majority of evidence which were derived from cancer cell lines and xenografts are likely to overestimate the benefit of metformin since these models are inadequate and require supraphysiological levels of metformin. Here, we generated patient-derived xenografts (PDX) lines from 2 CRC patients to assess the properties of metformin and 5-fluorouracil (5-FU), the first-line drug treatment for CRC...
May 22, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28528906/warts-signaling-controls-organ-and-body-growth-through-regulation-of-ecdysone
#16
Morten E Moeller, Stanislav Nagy, Stephan U Gerlach, Karen C Soegaard, E Thomas Danielsen, Michael J Texada, Kim F Rewitz
Coordination of growth between individual organs and the whole body is essential during development to produce adults with appropriate size and proportions [1, 2]. How local organ-intrinsic signals and nutrient-dependent systemic factors are integrated to generate correctly proportioned organisms under different environmental conditions is poorly understood. In Drosophila, Hippo/Warts signaling functions intrinsically to regulate tissue growth and organ size [3, 4], whereas systemic growth is controlled via antagonistic interactions of the steroid hormone ecdysone and nutrient-dependent insulin/insulin-like growth factor (IGF) (insulin) signaling [2, 5]...
May 17, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28526365/calibration-and-validation-of-the-youth-activity-profile-the-flashe-study
#17
Pedro F Saint-Maurice, Youngwon Kim, Paul Hibbing, April Y Oh, Frank M Perna, Gregory J Welk
INTRODUCTION: This study describes the calibration and validity of the Youth Activity Profile (YAP) for use in the National Cancer Institute's Family Life, Activity, Sun, Health, and Eating (FLASHE) study. The calibrated YAP was designed to estimate minutes of moderate to vigorous physical activity (MVPA) and sedentary behavior (SB). METHODS: The YAP was calibrated/validated in adolescents (aged 12-17 years) using cross-sectional data from the FLASHE study. Participants wore a GT3X+ ActiGraph on the dominant wrist for 7 days and then completed the YAP...
June 2017: American Journal of Preventive Medicine
https://www.readbyqxmd.com/read/28524356/association-between-yap-expression-in-neoplastic-and-non-neoplastic-breast-tissue-with-arsenic-urinary-levels
#18
Gladis Michel-Ramirez, Rogelio Recio-Vega, Guadalupe Ocampo-Gomez, Eduardo Palacios-Sanchez, Manuel Delgado-Macias, Manuel Delgado-Gaona, Robert Clark Lantz, Jay Gandolfi, Tania Gonzalez-Cortes
The Hippo pathway regulates cell proliferation and apoptosis and it has been noted that loss of critical components of this pathway can lead to uncontrolled cell growth. Yes-associated protein (YAP) is an important component of this Hippo pathway because YAP is the nuclear effector of the Hippo tumor suppressor pathway and it is crucial for the response to oxidative stress induced by cellular process and by different xenobiotics, including arsenic. It has been proposed that YAP dysregulation can contribute to a malignant cellular phenotype acting as both a tumor suppressor and an oncogene...
May 19, 2017: Journal of Applied Toxicology: JAT
https://www.readbyqxmd.com/read/28518171/fish-flow-a-protocol-for-the-concurrent-detection-of-mrna-and-protein-in-single-cells-using-fluorescence-in-situ-hybridization-and-flow-cytometry
#19
Riccardo Arrigucci, Yuri Bushkin, Felix Radford, Karim Lakehal, Pooja Vir, Richard Pine, December Martin, Jeffrey Sugarman, Yanlin Zhao, George S Yap, Alfred A Lardizabal, Sanjay Tyagi, Maria Laura Gennaro
We describe a flow-cytometry-based protocol for intracellular mRNA measurements in nonadherent mammalian cells using fluorescence in situ hybridization (FISH) probes. The method, which we call FISH-Flow, allows for high-throughput multiparametric measurements of gene expression, a task that was not feasible with earlier, microscopy-based approaches. The FISH-Flow protocol involves cell fixation, permeabilization and hybridization with a set of fluorescently labeled oligonucleotide probes. In this protocol, surface and intracellular protein markers can also be stained with fluorescently labeled antibodies for simultaneous protein and mRNA measurement...
June 2017: Nature Protocols
https://www.readbyqxmd.com/read/28516128/parental-experiences-of-raising-a-child-with-medium-chain-acyl-coa-dehydrogenase-deficiency
#20
Hilary Piercy, Katarzyna Machaczek, Parveen Ali, Sufin Yap
Newborn screening enabling early diagnosis of medium chain acyl-CoA dehydrogenase deficiency (MCADD) has dramatically improved health outcomes in children with MCADD. Achieving those outcomes depends on effective management by parents. Understanding parental management strategies and associated anxieties and concerns is needed to inform provision of appropriate care and support. Semistructured interviews were conducted with a purposive sample of parents of children aged 2 to 12 years. Thematic analysis identified two main themes...
January 2017: Global Qualitative Nursing Research
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