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https://www.readbyqxmd.com/read/28346809/malat1-promotes-osteosarcoma-development-by-regulation-of-hmgb1-via-mir-142-3p-and-mir-129-5p
#1
Ke Liu, Jun Huang, Jiangdong Ni, Deye Song, Muliang Ding, Junjie Wang, Xianzhe Huang, Wenzhao Li
Recently, emerging evidence has demonstrated that metastasis-associated lung adenocarcinoma transcript 1 (MALAT1), a long non-coding RNAs (lncRNAs), contributes to the initiation and development of tumors, including osteosarcoma (OS). Multiple studies have suggested an oncogenic role of MALAT1 and high-mobility group protein B1 (HMGB1) in OS tumorigenesis and metastasis, but the effects and mechanisms are not unanimous. Here, we showed that MALAT1 and HMGB1 were significantly increased in human OS cell lines and knockdown of MALAT1 reduced HMGB1 expression...
March 19, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28346736/loss-of-predator-species-not-intermediate-consumers-triggers-rapid-and-dramatic-extinction-cascades
#2
Ian Donohue, Owen L Petchey, Sonia Kéfi, Alexandre Génin, Andrew L Jackson, Qiang Yang, Nessa E O'Connor
Ecological networks are tightly interconnected, such that loss of a single species can trigger additional species extinctions. Theory predicts that such secondary extinctions are driven primarily by loss of species from intermediate or basal trophic levels. In contrast, most cases of secondary extinctions from natural systems have been attributed to loss of entire top trophic levels. Here, we show that loss of single predator species in isolation can, irrespective of their identity or the presence of other predators, trigger rapid secondary extinction cascades in natural communities far exceeding those generally predicted by theory...
March 27, 2017: Global Change Biology
https://www.readbyqxmd.com/read/28346668/demographic-and-preliminary-employment-data-of-the-first-two-graduate-cohorts-from-a-rural-veterinary-school
#3
J H Hyams, S L Raidal, L M Hayes, J Heller
OBJECTIVE: To report initial career experiences and graduate employment destinations 1 and 5 years following graduation of the 67 graduates from the first two graduating classes of the veterinary science program at Charles Sturt University. DESIGN: Online survey of graduates from the 2010 and 2011 cohorts undertaken 12 months following course completion and descriptive data on graduate practice locations 5 years post-graduation. PROCEDURE: Questions covered general demographic information, issues relating to work-life balance and factors influencing vocational choices...
April 2017: Australian Veterinary Journal
https://www.readbyqxmd.com/read/28346643/evaluating-the-quality-and-readability-of-internet-information-sources-regarding-the-treatment-of-swallowing-disorders
#4
Ashley P O'Connell Ferster, Amanda Hu
The Internet has become a popular resource for patient education. The information it provides, however, is rarely peer-reviewed, and its quality may be a concern. Since the average American reads at an 8th grade level, the American Medical Association and the National Institutes of Health have recommended that health information be written at a 4th to 6th grade level. We performed a study to assess the quality and readability of online information regarding the treatment of swallowing disorders. A Google search for "swallowing treatment" was conducted...
March 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28346605/does-including-public-health-students-on-interprofessional-teams-increase-attainment-of-interprofessional-practice-competencies
#5
Pamela Ann Duffy, Julie A Ronnebaum, Teri A Stumbo, Kari Nies Smith, Rachel A Reimer
CONTEXT: Interprofessional education (IPE) creates dynamic experiential learning that can address social determinants of health that influence health outcomes. OBJECTIVE: To examine the effects of including public health students on IPE teams on the interprofessional practice domain constructs (values/ethics, roles/responsibilities, interprofessional communication, and teams and teamwork). METHODS: This single-case, mixed-methods study was performed using a grounded theory approach...
April 1, 2017: Journal of the American Osteopathic Association
https://www.readbyqxmd.com/read/28346604/blended-learning-educational-format-for-third-year-pediatrics-clinical-rotation
#6
Erik E Langenau, Robert Lee, Marci Fults
CONTEXT: Traditional medical education is shifting to incorporate learning technologies and online educational activities with traditional face-to-face clinical instruction to engage students, especially at remote clinical training sites. OBJECTIVE: To describe and evaluate the effectiveness of the blended learning format (combining online and face-to-face instruction) for third-year osteopathic medical students during their pediatric rotation. METHODS: Third-year medical students who completed the 4-week clerkship in pediatrics during the 2014-2015 academic year were divided into a standard learning group and a blended learning group with online activities (discussion boards, blogs, virtual patient encounters, narrated video presentations, and online training modules)...
April 1, 2017: Journal of the American Osteopathic Association
https://www.readbyqxmd.com/read/28346595/association-of-gastric-acid-suppression-with-recurrent-clostridium-difficile-infection-a-systematic-review-and-meta-analysis
#7
Raseen Tariq, Siddharth Singh, Arjun Gupta, Darrell S Pardi, Sahil Khanna
Importance: Gastric acid suppression has been associated with an increased risk of primary Clostridium difficile infection (CDI), but the risk of recurrent CDI in patients taking gastric acid suppressant medications is unclear. Objective: To perform a systematic review and meta-analysis to evaluate the association between gastric acid suppressants and recurrent CDI. Data Sources: MEDLINE, EMBASE, the Cochrane Central Register, the Cochrane Database, and Web of Science were searched from January 1, 1995, to September 30, 2015, for studies assessing the association between gastric acid suppressant exposure and recurrent CDI...
March 27, 2017: JAMA Internal Medicine
https://www.readbyqxmd.com/read/28346593/parental-sharing-on-the-internet-child-privacy-in-the-age-of-social-media-and-the-pediatrician-s-role
#8
Bahareh Ebadifar Keith, Stacey Steinberg
No abstract text is available yet for this article.
March 27, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/28346436/detailed-comparison-of-retroviral-vectors-and-promoter-configurations-for-stable-and-high-transgene-expression-in-human-induced-pluripotent-stem-cells
#9
D Hoffmann, J W Schott, F K Geis, L Lange, F-J Müller, D Lenz, D Zychlinski, D Steinemann, M Morgan, T Moritz, A Schambach
Correction of patient-specific induced pluripotent stem cells (iPSC) upon gene delivery through retroviral vectors offers new treatment perspectives for monogenetic diseases. Gene-modified iPSC clones can be screened for safe integration sites and differentiated into transplantable cells of interest. However, the current bottleneck is epigenetic vector silencing. In order to identify the most suitable retroviral expression system in iPSC, we systematically compared vectors from different retroviral genera, different promoters and their combination with ubiquitous chromatin opening elements (UCOE), and several envelope pseudotypes...
March 27, 2017: Gene Therapy
https://www.readbyqxmd.com/read/28346435/aav9-mediated-engineering-of-autotransplanted-kidney-of-non-human-primates
#10
S Tomasoni, P Trionfini, N Azzollini, L Zentilin, M Giacca, S Aiello, L Longaretti, E Cozzi, N Baldan, G Remuzzi, A Benigni
Ex vivo gene transfer to the graft before transplantation is an attractive option for circumventing systemic side effects of chronic anti-rejection therapy. Gene delivery of the immunomodulatory protein CTLA4-Ig prevented chronic kidney rejection in a rat model of allotransplantation without the need for systemic immunosuppression. Here, we generated AAV2 and AAV9 vectors encoding for LEA29Y, an optimized version of CTLA4-Ig. Both LEA29Y vectors were equally efficient for reducing T-cell proliferation in vitro...
March 27, 2017: Gene Therapy
https://www.readbyqxmd.com/read/28346434/optimization-of-adeno-associated-virus-vector-mediated-gene-transfer-to-the-respiratory-tract
#11
F Kurosaki, R Uchibori, N Mato, Y Sehara, Y Saga, M Urabe, H Mizukami, Y Sugiyama, A Kume
An efficient adeno-associated virus (AAV) vector was constructed for the treatment of respiratory diseases. AAV serotypes, promoters, and routes of administration potentially influencing the efficiency of gene transfer to airway cells were examined in the present study. Among the nine AAV serotypes (AAV1-9) screened in vitro and four serotypes (AAV1, 2, 6, 9) evaluated in vivo, AAV6 showed the strongest transgene expression. As for promoters, the cytomegalovirus (CMV) early enhancer/chicken β-actin (CAG) promoter resulted in more robust transduction than the CMV promoter...
March 27, 2017: Gene Therapy
https://www.readbyqxmd.com/read/28346430/il-17c-mediates-the-recruitment-of-tumor-associated-neutrophils-and-lung-tumor-growth
#12
C Jungnickel, L H Schmidt, L Bittigkoffer, L Wolf, A Wolf, F Ritzmann, A Kamyschnikow, C Herr, M D Menger, T Spieker, R Wiewrodt, R Bals, C Beisswenger
Chronic obstructive pulmonary disease (COPD) is associated with an increased risk for lung cancer and an aberrant microbiota of the lung. Microbial colonization contributes to chronic neutrophilic inflammation in COPD. Nontypeable Haemophilus influenzae (NTHi) is frequently found in lungs of stable COPD patients and is the major pathogen triggering exacerbations. The epithelial cytokine interleukin-17C (IL-17C) promotes the recruitment of neutrophils into inflamed tissues. The purpose of this study was to investigate the function of IL-17C in the pulmonary tumor microenvironment...
March 27, 2017: Oncogene
https://www.readbyqxmd.com/read/28346429/deletion-of-endothelial-cell-specific-liver-kinase-b1-increases-angiogenesis-and-tumor-growth-via-vascular-endothelial-growth-factor
#13
W Zhang, Y Ding, C Zhang, Q Lu, Z Liu, K Coughlan, I Okon, M-H Zou
Liver kinase B1 (LKB1) is a serine/threonine protein kinase ubiquitously expressed in mammalian cells. It was first identified in Peutz-Jeghers syndrome as a tumor suppressor gene. Whether endothelial LKB1 regulates angiogenesis and tumor growth is unknown. In this study, we generated endothelial cell-specific LKB1-knockout (LKB1(endo-/-)) mice by crossbreeding vascular endothelial-cadherin-Cre mice with LKB1(flox/flox) mice. Vascular endothelial growth factor (VEGF) level was highly co-stained in endothelial cells but not in macrophages in LKB1(endo-/-) mice...
March 27, 2017: Oncogene
https://www.readbyqxmd.com/read/28346428/autophagy-is-required-for-cell-survival-under-l-asparaginase-induced-metabolic-stress-in-acute-lymphoblastic-leukemia-cells
#14
H Takahashi, J Inoue, K Sakaguchi, M Takagi, S Mizutani, J Inazawa
L-asparaginase has been used for more than three decades in acute lymphoblastic leukemia (ALL) patients and remains an essential drug in the treatment of ALL. Poor response to L-asparaginase is associated with increased risk of therapeutic failure in ALL. However, both the metabolic perturbation and molecular context of L-asparaginase-treated ALL cells has not been fully elucidated. Here we identify that treatment with L-asparaginase results in metabolic shutdown via the reduction of both glycolysis and oxidative phosphorylation, accompanied by mitochondrial damage and activation of autophagy...
March 27, 2017: Oncogene
https://www.readbyqxmd.com/read/28346427/mir-21-is-required-for-anti-tumor-immune-response-in-mice-an-implication-for-its-bi-directional-roles
#15
W He, C Wang, R Mu, P Liang, Z Huang, J Zhang, L Dong
Here we show that miR-21, a microRNA known for its oncogenic activity, is also essential for mediating immune responses against tumor. Knockout of miR-21 in mice slowed the proliferation of both CD4(+) and CD8(+) cells, reduced their cytokine production and accelerated the grafted tumor growth. Further investigations indicated that miR-21 could activate CD4(+) and CD8(+) T cells via the PTEN/Akt pathway in response to stimulations. Taken together, these data suggest the key functions of miR-21 in mediating anti-tumor immune response and thereby uncover a bi-directional role of this traditionally known 'oncomiR' in tumorigenesis...
March 27, 2017: Oncogene
https://www.readbyqxmd.com/read/28346426/mrl-proteins-cooperate-with-activated-ras-in-glia-to-drive-distinct-oncogenic-outcomes
#16
E Taylor, N Alqadri, L Dodgson, D Mason, E Lyulcheva, G Messina, D Bennett
The Mig10/RIAM/Lpd (MRL) adapter protein Lpd regulates actin dynamics through interactions with Scar/WAVE and Ena/VASP proteins to promote the formation of cellular protrusions and to stimulate invasive migration. However, the ability of MRL proteins to interact with multiple actin regulators and to promote serum response factor (SRF) signalling has raised the question of whether MRL proteins employ alternative downstream mechanisms to drive oncogenic processes in a context-dependent manner. Here, using a Drosophila model, we show that overexpression of either human Lpd or its Drosophila orthologue Pico can promote growth and invasion of Ras(V12)-induced cell tumours in the brain...
March 27, 2017: Oncogene
https://www.readbyqxmd.com/read/28346425/chip-stub1-regulates-the-warburg-effect-by-promoting-degradation-of-pkm2-in-ovarian-carcinoma
#17
Y Shang, J He, Y Wang, Q Feng, Y Zhang, J Guo, J Li, S Li, Y Wang, G Yan, F Ren, Y Shi, J Xu, N Zeps, Y Zhai, D He, Z Chang
Tumor cells preferentially adopt aerobic glycolysis for their energy supply, a phenomenon known as the Warburg effect. It remains a matter of debate as to how the Warburg effect is regulated during tumor progression. Here, we show that CHIP (carboxyl terminus of Hsc70-interacting protein), a U-box E3 ligase, suppresses tumor progression in ovarian carcinomas by inhibiting aerobic glycolysis. While CHIP is downregulated in ovarian carcinoma, induced expression of CHIP results in significant inhibition of the tumor growth examined by in vitro and in vivo experiments...
March 27, 2017: Oncogene
https://www.readbyqxmd.com/read/28346424/skp2-deficiency-restricts-the-progression-and-stem-cell-features-of-castration-resistant-prostate-cancer-by-destabilizing-twist
#18
D Ruan, J He, C-F Li, H-J Lee, J Liu, H-K Lin, C-H Chan
Castration-resistant prostate cancer (CRPC) remains a major clinical challenge because of the lack of effective targeted therapy for its treatment. The mechanism underlying how CRPC gains resistance toward hormone depletion and other forms of chemotherapy is poorly understood. Research on understanding the factors that drive these processes is desperately needed to generate new therapies to cure the disease. Here, we discovered a fundamental role of S-phase protein kinase 2 (Skp2) in the formation and progression of CRPC...
March 27, 2017: Oncogene
https://www.readbyqxmd.com/read/28346423/mob1-yap1-taz-nkx2-1-axis-controls-bronchioalveolar-cell-differentiation-adhesion-and-tumour-formation
#19
K Otsubo, H Goto, M Nishio, K Kawamura, S Yanagi, W Nishie, T Sasaki, T Maehama, H Nishina, K Mimori, T Nakano, H Shimizu, T W Mak, K Nakao, Y Nakanishi, A Suzuki
Mps One Binder Kinase Activator (MOB)1A/1B are core components of the Hippo pathway. These proteins, which coactivate LArge Tumour Suppressor homologue kinases, are also tumour suppressors. To investigate MOB1A/B's roles in normal physiology and lung cancer, we generated doxycycline (Dox)-inducible, bronchioalveolar epithelium-specific, null mutations of MOB1A/B in mice (SPC-rtTA/(tetO)7-Cre/Mob1a(flox/flox)/Mob1b(-/-); termed luMob1DKO mice). Most mutants (70%) receiving Dox in utero (luMob1DKO (E6.5-18.5) mice) died of hypoxia within 1 h post-birth...
March 27, 2017: Oncogene
https://www.readbyqxmd.com/read/28346422/the-metastatic-suppressor-ndrg1-inhibits-emt-migration-and-invasion-through-interaction-and-promotion-of-caveolin-1-ubiquitylation-in-human-colorectal-cancer-cells
#20
L Mi, F Zhu, X Yang, J Lu, Y Zheng, Q Zhao, X Wen, A Lu, M Wang, M Zheng, J Ji, J Sun
N-myc downstream-regulated gene 1 (NDRG1) has been reported to act as a key regulatory molecule in tumor progression-related signaling pathways, especially in tumor metastasis. However, the related mechanism has not been fully discovered yet. Herein we demonstrated that the novel molecule of cell migration and invasion, caveolin-1, has direct interaction with NDRG1 in human colorectal cancer (CRC) cells. Moreover, we discovered that NDRG1 reduces caveolin-1 protein expression through promoting its ubiquitylation and subsequent degradation via the proteasome in CRC cells...
March 27, 2017: Oncogene
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