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https://www.readbyqxmd.com/read/28431404/upregulation-of-microrna-125b-by-g-csf-promotes-metastasis-in-colorectal-cancer
#1
Xinghua Zhang, Xiao Ma, Huaying An, Changqing Xu, Wenjo Cao, Wei Yuan, Jie Ma
Although there are reports of miR-125b being dysregulated in colorectal cancer (CRC) and associated with CRC progression, little is known about its intrinsic regulatory mechanisms. Here we detected the expression of miR-125b in CRC tissues, subsequently investigated the effect of miR-125b on the proliferation, apoptosis, cell cycle and metastasis on CRC cells. Our results showed that the expression of miR-125b was significantly decreased in CRC tissues comparing to adjacent tissues. However, with the stimulation of Granulocyte colony-stimulating factor (G-CSF), which was highly expressed in CRC tissues, the expression of miR-125b could be improved...
April 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28431176/effect-of-melatonin-on-renewal-of-chicken-small-intestinal-mucosa
#2
J Li, R X Li, G Liu, C F Lv, Y L Mi, C Q Zhang
A higher concentration of melatonin (MEL) in the intestine - even more than that in the plasma and pineal gland - implies its putative important role in the gastrointestinal structural or functional regulation. However, little evidence has shown that MEL can regulate the physiological functions of the intestinal mucosa. In this study, fertilized chicken eggs were treated with MEL (0.1 to 10 μg/d) from embryonic d 12 (E12) to post-hatching d 6 (D6), and the small intestine samples were collected at D6 to determine the changes in mucosal construction and function...
April 20, 2017: Poultry Science
https://www.readbyqxmd.com/read/28431107/double-fixation-for-abdominal-aortic-aneurysm-repair-using-afx-body-and-endurant-proximal-aortic-cuff-mid-term-results
#3
Miltiadis I Matsagkas, George Kouvelos, Konstantinos Spanos, Athanasios Athanasoulas, Athanasios Giannoukas
Our goal was to evaluate the use of an AFX main body combined with an Endurant proximal aortic cuff to treat selected patients with an abdominal aortic aneurysm (AAA) associated with anatomical challenges, such as a small distal aortic diameter and a hostile aortic neck. A retrospective analysis of prospectively collected data from 2 vascular institutions identified 14 elective patients with an AAA (all men, 73.5 ± 5.1 years) treated with the AFX main body combined with an Endurant proximal aortic cuff...
April 17, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28430558/lower-esophageal-sphincter-augmentation-for-gastroesophageal-reflux-disease-the-safety-of-a-modern-implant
#4
C Daniel Smith, Robert A Ganz, John C Lipham, Reginald C Bell, David W Rattner
INTRODUCTION: Use of the magnetic sphincter augmentation device (MSAD) for gastroesophageal reflux disease (GERD) is increasing. As this innovative treatment for GERD gains widespread use and adoption, an assessment of its safety since U.S. market introduction is presented. METHODS: Events were collected from the Manufacturer and User Facility Device Experience (MAUDE) database, which reports events submitted to the Food and Drug Administration (FDA) of suspected device-associated deaths, serious injuries, and malfunctions...
April 21, 2017: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/28429416/modulation-of-heterotypic-and-homotypic-cell-cell-interactions-via-zwitterionic-lipid-masks
#5
Matthew Park, Wongu Youn, Doyeon Kim, Eun Hyea Ko, Beom Jin Kim, Sung Min Kang, Kyungtae Kang, Insung S Choi
Since the pioneering work by Whitesides, innumerable platforms that aim to spatio-selectively seed cells and control the degree of cell-cell interactions in vitro have been developed. These methods, however, have generally been technically and methodologically complex, or demanded stringent materials and conditions. In this work, we introduce zwitterionic lipids as patternable, cell-repellant masks for selectively seeding cells. The lipid masks are easily removed with a routine washing step under physiological conditions (37 °C, pH 7...
April 21, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28429008/anticancer-effects-of-novel-resveratrol-analogues-on-human-ovarian-cancer-cells
#6
Daniele Vergara, Stefania De Domenico, Andrea Tinelli, Eleonora Stanca, Loretta L Del Mercato, Anna M Giudetti, Pasquale Simeone, Nicola Guazzelli, Marco Lessi, Chiara Manzini, Angelo Santino, Fabio Bellina, Michele Maffia
Resveratrol, a naturally occurring phytoalexin, has long been known to play an important regulatory role in key functions in cell physiology. This multifunctional role of resveratrol is explained by its ability to interact with several targets of various cell pathways. In the recent past, synthetic chemical modifications have been made in an attempt to enhance the biological effects of resveratrol, including its anti-cancer properties. In this study, we investigated the molecular mechanisms of action of novel trans-restricted analogues of resveratrol in which the C-C double bond of the natural derivative has been replaced by diaryl-substituted imidazole analogues...
April 21, 2017: Molecular BioSystems
https://www.readbyqxmd.com/read/28424794/study-design-and-baseline-results-of-an-open-label-cluster-randomized-community-intervention-trial-to-assess-the-effectiveness-of-a-modified-mass-deworming-program-in-reducing-hookworm-infection-in-a-tribal-population-in-southern-india
#7
Rajiv Sarkar, Anuradha Rose, Venkata R Mohan, Sitara S R Ajjampur, Vasanthakumar Veluswamy, Rajan Srinivasan, Jayaprakash Muliyil, Vedantam Rajshekhar, Kuryan George, Vinohar Balraj, Nicholas C Grassly, Roy M Anderson, Simon J Brooker, Gagandeep Kang
INTRODUCTION: Hookworm infection is a leading cause of iron deficiency anemia and malnutrition in resource-poor settings. Periodic mass deworming with anthelminthic drugs remains the cornerstone of hookworm control efforts worldwide. Reinfection following treatment occurs, reflecting the human host's inability to acquire immunity following exposure to an untreated reservoir of infection. This cluster randomized trial will evaluate the effectiveness of a modified, population-based, mass deworming strategy in reducing hookworm infection in an endemic southern Indian population...
March 2017: Contemporary Clinical Trials Communications
https://www.readbyqxmd.com/read/28424168/mir-9-5p-promotes-msc-migration-by-activating-%C3%AE-catenin-signaling-pathway
#8
Xianyang Li, Lihong He, Qing Yue, Junhou Lu, Naixin Kang, Xiaojing Xu, Huihui Wang, Huanxiang Zhang
Mesenchymal stem cells (MSCs) have the potential to treat various tissue damages, but the very limited number of cells that migrate to the damaged region strongly restricts their therapeutic applications. Full understanding of mechanisms regulating MSC migration will help to improve their migration ability and therapeutic effects. Increasing evidence shows that microRNAs play important roles in the regulation of MSC migration. In the present study, we reported that miR-9-5p was upregulated in HGF-treated MSCs and in MSCs with high migration ability...
April 19, 2017: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/28423737/rmp-promotes-epithelial-mesenchymal-transition-through-nf-%C3%AE%C2%BAb-csn2-snail-pathway-in-hepatocellular-carcinoma
#9
Wei Zhou, Qi Wang, Yi Xu, Jingting Jiang, Jingchun Guo, Huijun Yu, Wenxiang Wei
Epithelial-mesenchymal transition (EMT) is a significant risk factor for metastasis in hepatocellular carcinoma (HCC) patients and with poor prognosis. In this study, we demonstrate the key role of RPB5-mediating protein (RMP) in EMT of HCC cells and the mechanism by which RMP promote EMT. RMP increases migration, invasion, and the progress of EMT of HCC cells, which facilitates the accumulation of Snail, a transcriptional repressor involved in EMT initiation. NF-κB is activated by RMP, which directly promotes the expression of COP9 signalosome 2 (CSN2) to repress the degradation of Snail...
March 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423710/phospholipase-c%C3%AE-1-suppresses-cell-migration-and-invasion-of-breast-cancer-cells-by-modulating-kif3a-mediated-erk1-2-%C3%AE-catenin-mmp7-signalling
#10
Qing Shao, Xinrong Luo, Dejuan Yang, Can Wang, Qiao Cheng, Tingxiu Xiang, Guosheng Ren
Phospholipase C δ1 (PLCD1) encodes an enzyme involved in energy metabolism, calcium homeostasis and intracellular movement. It is located at 3p22 in a region that is frequently deleted in multiple cancers, and the PLCD1 enzyme is a potential tumour suppressor in breast cancer that inhibits matrix metalloprotease (MMP) 7, but the detailed mechanism remains elusive. In this study, we found that PLCD1 was downregulated in breast cancers, and the gain-or-loss functional assay revealed that PLCD1 inhibited cell migration and invasion in vitro via the ERK1/2/β-catenin/MMP7 signalling pathway...
March 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423620/exosomal-mir-940-maintains-src-mediated-oncogenic-activity-in-cancer-cells-a-possible-role-for-exosomal-disposal-of-tumor-suppressor-mirnas
#11
Mohammed H Rashed, Pinar Kanlikilicer, Cristian Rodriguez-Aguayo, Martin Pichler, Recep Bayraktar, Emine Bayraktar, Cristina Ivan, Justyna Filant, Andreia Silva, Burcu Aslan, Merve Denizli, Rahul Mitra, Bulent Ozpolat, George A Calin, Anil K Sood, Mohamed F Abd-Ellah, Gouda K Helal, Gabriel Lopez Berestein
Exosomes have emerged as important mediators of diverse biological functions including tumor suppression, tumor progression, invasion, immune escape and cell-to-cell communication, through the release of molecules such as mRNAs, miRNAs, and proteins. Here, we identified differentially expressed exosomal miRNAs between normal epithelial ovarian cell line and both resistant and sensitive ovarian cancer (OC) cell lines. We found miR-940 as abundant in exosomes from SKOV3-IP1, HeyA8, and HeyA8-MDR cells. The high expression of miR-940 is associated with better survival in patients with ovarian serous cystadenocarcinoma...
March 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423181/mesenteric-lymph-node-cd11b-cd103-pd-l1-high-dendritic-cells-highly-induce-regulatory-t-cells
#12
Aya Shiokawa, Ryutaro Kotaki, Tomohiro Takano, Haruyo Nakajima-Adachi, Satoshi Hachimura
Dendritic cells (DCs) in mesenteric lymph nodes (MLNs) induce Foxp3(+) regulatory T cells to regulate immune responses to beneficial or non-harmful agents in the intestine, such as commensal bacteria and foods. Several studies in MLN DCs have revealed that CD103(+) DC subset highly induces regulatory T cells, and another study has reported that MLN DCs from PD-L1-deficient mice could not induce regulatory T cells. Thus, the present study investigated expression of these molecules on MLN CD11c(+) cells. Four distinct subsets expressing CD103 and/or PD-L1 were identified, namely CD11b(+) CD103(+) PD-L1(High) , CD11b(-) CD103(+) PD-L1(High) , CD11b(-) CD103(+) PD-L1(Low) , and CD11b(+) CD103(-) PD-L1(Int...
April 19, 2017: Immunology
https://www.readbyqxmd.com/read/28422717/c3orf21-ablation-promotes-the-proliferation-of-lung-adenocarcinoma-and-its-mutation-at-the-rs2131877-locus-may-serve-as-a-susceptibility-marker
#13
Litao Yang, Ying Wang, Meiyu Fang, Douhou Deng, Yongjun Zhang
In this study, we investigated the role of C3orf21 gene polymorphism at the rs2131877 locus and its contribution to lung adenocarcinoma pathogenesis. Normal lung and tumor tissue sections were collected from fifteen patients with lung adenocarcinoma for chromosome 3 open reading frame 21 (C3orf21) genotype analysis. In addition, a retrospective analysis was performed to assess the association between C3orf21 genotype and tumor markers from patient samples used in our previously published study. In parallel, we also manipulated C3orf21 gene expression either by overexpressing or ablating it in a MSTO-211H human lung cancer cell line to further understand its contribution to cell proliferation, apoptosis and migration...
April 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/28421550/distribution-genetic-diversity-and-potential-spatiotemporal-scale-of-alien-gene-flow-in-crop-wild-relatives-of-rice-oryza-spp-in-colombia
#14
Evert Thomas, Eduardo Tovar, Carolina Villafañe, José Leonardo Bocanegra, Rodrigo Moreno
BACKGROUND: Crop wild relatives (CWRs) of rice hold important traits that can contribute to enhancing the ability of cultivated rice (Oryza sativa and O. glaberrima) to produce higher yields, cope with the effects of climate change, and resist attacks of pests and diseases, among others. However, the genetic resources of these species remain dramatically understudied, putting at risk their future availability from in situ and ex situ sources. Here we assess the distribution of genetic diversity of the four rice CWRs known to occur in Colombia (O...
December 2017: Rice
https://www.readbyqxmd.com/read/28420374/prevalence-and-associated-factors-of-common-mental-disorders-among-ethiopian-migrant-returnees-from-the-middle-east-and-south-africa
#15
Kassahun Habtamu, Abebaw Minaye, Waganesh A Zeleke
BACKGROUND: Ethiopian migrants to the Middle East and South Africa experience a range of problems at various stages of their migration including overwork, sleep deprivation, denial of food, emotional abuse, difficulty adapting to the host culture, salary denial, sexual abuse, labor exploitation, confiscation of their travel documents, confinement, denial of medication, lack of access to legal service and degrading attitude by employers, traffickers and smugglers. These experiences can be associated with different types of mental disorders...
April 19, 2017: BMC Psychiatry
https://www.readbyqxmd.com/read/28418928/erk-signalling-modulates-epigenome-to-drive-epithelial-to-mesenchymal-transition
#16
Mohit Navandar, Angela Garding, Sanjeeb Kumar Sahu, Abhijeet Pataskar, Sandra Schick, Vijay K Tiwari
The series of events that allow the conversion from adherent epithelial cells into migratory cells is collectively known as epithelial-mesenchymal transition (EMT). EMT is employed during embryonic development such as for gastrulation and neural crest migration and is misused in diseases, such as cancer metastasis. ERK signalling is known to be essential for EMT, however its influence on the epigenetic and transcriptional programme underlying EMT is poorly understood. Here, using a comprehensive genome-wide analysis of H3K27ac mark and gene expression in mammary epithelial cells undergoing EMT, we found that ERK signalling is essential for the epigenetic reprogramming underlying hallmark gene expression and phenotypic changes of EMT...
March 23, 2017: Oncotarget
https://www.readbyqxmd.com/read/28418877/transforming-growth-factor-%C3%AE-1-promotes-breast-cancer-metastasis-by-downregulating-mir-196a-3p-expression
#17
Yan Chen, Shai Huang, Bo Wu, Jiankai Fang, Minsheng Zhu, Li Sun, Lifeng Zhang, Yongsheng Zhang, Maomin Sun, Lingling Guo, Shouli Wang
Transforming growth factor-β1 is considered a key contributor to the progression of breast cancer. MicroRNAs are important factors in the development and progression of many malignancies. In the present study, upon studies of breast cancer cell lines and tissues, we showed that microRNA -196a-3p is decreased by transforming growth factor-β1 in breast cancer cells and associated with breast cancer progression. We identified neuropilin-2 as a target gene of microRNA -196a-3p and showed that it is regulated by transforming growth factor-β1...
March 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28417003/migration-distance-as-a-selective-episode-for-wing-morphology-in-a-migratory-insect
#18
D T Tyler Flockhart, Blair Fitz-Gerald, Lincoln P Brower, Rachael Derbyshire, Sonia Altizer, Keith A Hobson, Leonard I Wassenaar, D Ryan Norris
BACKGROUND: Selective pressures that occur during long-distance migration can influence morphological traits across a range of taxa. In flying insects, selection should favour individuals that have wing morphologies that increase energy efficiency and survival. In monarch butterflies, differences in wing morphology between migratory and resident populations suggest that migratory populations have undergone selection for larger (as measured by length and area) and more elongated (as measured by roundness and aspect ratio) forewings...
2017: Movement Ecology
https://www.readbyqxmd.com/read/28416606/tra2a-promoted-paclitaxel-resistance-and-tumor-progression-in-triple-negative-breast-cancers-via-regulating-alternative-splicing
#19
Tieju Liu, Huizhi Sun, Dongwang Zhu, Xueyi Dong, Fang Liu, Xiaohui Liang, Chen Chen, Bing Shao, Meili Wang, Yi Wang, Baocun Sun
Treatment of triple-negative breast cancer (TNBC) has been challenging and paclitaxel (PTX) resistance is one of the major obstacles to the better prognosis. Deregulation of alternative splicing (AS) may contribute to tumor progression and chemotherapy resistance. Human AS factor TRA2 has two separate gene paralogs encoding TRA2A and TRA2B proteins. TRA2B is associated with cancer cell survival and therapeutic sensitivity. However the individual role of TRA2A in cancer progression has not been reported. Here we report that TRA2A facilitates proliferation and survival, migration and invasion of TNBC cells...
April 17, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28415996/travel-and-the-emergence-of-high-level-drug-resistance-in-plasmodium-falciparum-in-southwest-uganda-results-from-a-population-based-study
#20
Caroline A Lynch, Richard Pearce, Hirva Pota, Connie Egwang, Thomas Egwang, Amit Bhasin, Jonathan Cox, Tarekegn A Abeku, Cally Roper
BACKGROUND: The I164L mutation on the dhfr gene confers high level resistance to sulfadoxine-pyrimethamine (SP) but it is rare in Africa except in a cluster of reports where prevalence >10% in highland areas of southwest Uganda and eastern Rwanda. The occurrence of the dhfr I164L mutation was investigated in community surveys in this area and examined the relationship to migration. METHODS: A cross-sectional prevalence survey was undertaken in among villages within the catchment areas of two health facilities in a highland site (Kabale) and a highland fringe site (Rukungiri) in 2007...
April 17, 2017: Malaria Journal
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