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Collective migration

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https://www.readbyqxmd.com/read/29684855/post-transcription-mediated-snail-stabilization-is-involved-in-radiation-exposure-induced-invasion-and-migration-of-hepatocarcinoma-cells
#1
Liyang Dong, Xuebang Zhang, Wei Xiang, Junwei Ni, Weizhong Zhou, Haiyan Li
Increasing evidences suggested that radiotherapy can paradoxically promote tumor invasion and metastatic processes, while its detailed mechanism is not well illustrated. Our present study found that radiation can promote the migration and invasion of hepatocellular carcinoma (HCC) cells via induction of epithelial mesenchymal transition (EMT), which was evidenced by the results that radiation induced up regulation of vimentin while down regulation of E-Cadherin. As to the EMT-related transcription factors, radiation increased the expression of Snail, while not Slug, ZEB1 or TWIST...
April 20, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29684632/physical-and-geometrical-parameters-controlling-measurements-of-radon-emanation-and-exhalation-from-soil
#2
A F Saad, R M Abdallah, N A Hussein
The influence of physical and geometrical parameters, such as grain size, volume of the emanation container and mass of the sample, on the emanation coefficient and exhalation rates of radon (with and without consideration of back diffusion effect and effective volume of the emanation container) released from soil have been investigated. Moreover, a method for assessing the flux of radon migrate through soil layers was proposed. This method is based on measurement of the cumulative radon concentration transmitted through five layers of soil...
March 29, 2018: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/29684479/impairment-of-the-gn%C3%AE-11-controlled-expression-of-claudin-1-and-mmp-9-and-collective-migration-of-human-breast-cancer-mcf-7-cells-by-dheas
#3
Neha Upmanyu, Ahmed Bulldan, Dimitrios Papadopoulos, Raimund Dietze, Viveka Nand Malviya, Georgios Scheiner-Bobis
Although dehydroepiandrosterone sulfate (DHEAS) constitutes the most abundant steroid in humans, in-depth investigations of its effects are rather scarce. We address here DHEAS effects on the estrogen receptor-positive metastatic human breast cancer cell line MCF-7. We focus on DHEAS-mediated signaling that might influence expression of claudin-1 and matrix metalloproteinase-9 (MMP-9), both known to be critical factors for migration and invasiveness of various cancers, including breast cancer cells. Physiological concentrations of DHEAS trigger persistent phosphorylation of Erk1/2 in MCF-7 cells...
April 20, 2018: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29683479/bone-functional-adaptation-does-not-erase-neutral-evolutionary-information
#4
Gina Agostini, Brigitte M Holt, John H Relethford
OBJECTIVES: To investigate whether diaphyseal and craniofacial variation similarly reflect neutral genetic variation among modern European and South Africans. MATERIALS AND METHODS: Diaphyseal and craniofacial data were collected on English, South European, and South African samples. The Relethford-Blangero model was used to compare predicted among-population relationships generated by limb bones relative to those generated by the crania and, further, to test whether adaptive plasticity affected these predicted relationships...
April 23, 2018: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/29681517/internal-migration-and-transmission-dynamics-of-tuberculosis-in-shanghai-china-an-epidemiological-spatial-genomic-analysis
#5
Chongguang Yang, Liping Lu, Joshua L Warren, Jie Wu, Qi Jiang, Tianyu Zuo, Mingyu Gan, Mei Liu, Qingyun Liu, Kathryn DeRiemer, Jianjun Hong, Xin Shen, Caroline Colijn, Xiaoqin Guo, Qian Gao, Ted Cohen
BACKGROUND: Massive internal migration from rural to urban areas poses new challenges for tuberculosis control in China. We aimed to combine genomic, spatial, and epidemiological data to describe the dynamics of tuberculosis in an urban setting with large numbers of migrants. METHODS: We did a population-based study of culture-positive Mycobacterium tuberculosis isolates in Songjiang, Shanghai. We used whole-genome sequencing to discriminate apparent genetic clusters of M tuberculosis sharing identical variable-number-tandem-repeat (VNTR) patterns, and analysed the relations between proximity of residence and the risk of genomically clustered M tuberculosis...
April 19, 2018: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/29677184/elasticity-based-boosting-of-neuroepithelial-nucleokinesis-via-indirect-energy-transfer-from-mother-to-daughter
#6
Tomoyasu Shinoda, Arata Nagasaka, Yasuhiro Inoue, Ryo Higuchi, Yoshiaki Minami, Kagayaki Kato, Makoto Suzuki, Takefumi Kondo, Takumi Kawaue, Kanako Saito, Naoto Ueno, Yugo Fukazawa, Masaharu Nagayama, Takashi Miura, Taiji Adachi, Takaki Miyata
Neural progenitor cells (NPCs), which are apicobasally elongated and densely packed in the developing brain, systematically move their nuclei/somata in a cell cycle-dependent manner, called interkinetic nuclear migration (IKNM): apical during G2 and basal during G1. Although intracellular molecular mechanisms of individual IKNM have been explored, how heterogeneous IKNMs are collectively coordinated is unknown. Our quantitative cell-biological and in silico analyses revealed that tissue elasticity mechanically assists an initial step of basalward IKNM...
April 20, 2018: PLoS Biology
https://www.readbyqxmd.com/read/29676000/the-2016-hiv-diagnosis-and-care-cascade-in-new-south-wales-australia-meeting-the-unaids-90-90-90-targets
#7
Phillip Keen, Richard T Gray, Barbara Telfer, Rebecca Guy, Heather-Marie Schmidt, Bill Whittaker, Jo Holden, Martin Holt, Anthony Kelleher, David Wilson, Denton Callander, David A Cooper, Garrett Prestage, Christine Selvey, Andrew E Grulich
INTRODUCTION: The HIV Strategy in New South Wales (NSW) Australia aims to virtually eliminate HIV transmission by 2020. We estimated the 2016 HIV diagnosis and care cascade for the state of NSW, with a focus on introducing population-based data to improve data quality and assess progress towards the UNAIDS 90-90-90 targets. METHODS: To estimate the number of people living with diagnosed HIV (PLDHIV) we used NSW data from the Australian National HIV Registry, enhanced by surveillance among people recently diagnosed with HIV to improve migration estimates...
April 2018: Journal of the International AIDS Society
https://www.readbyqxmd.com/read/29675839/neural-crest-delamination-and-migration-looking-forward-to-the-next-150-years
#8
REVIEW
Nadège Gouignard, Cyril Andrieu, Eric Theveneau
Neural crest (NC) cells were described for the first time in 1868 by Wilhelm His. Since then, this amazing population of migratory stem cells has been intensively studied. It took a century to fully unravel their incredible abilities to contribute to nearly every organ of the body. Yet, our understanding of the cell and molecular mechanisms controlling their migration is far from complete. In this review, we summarize the current knowledge on epithelial-mesenchymal transition and collective behavior of NC cells and propose further stops at which the NC train might be calling in the near future...
April 20, 2018: Genesis: the Journal of Genetics and Development
https://www.readbyqxmd.com/read/29674392/cholesterol-metabolism-promotes-b-cell-positioning-during-immune-pathogenesis-of-chronic-obstructive-pulmonary-disease
#9
Jie Jia, Thomas M Conlon, Rim Sj Sarker, Demet Taşdemir, Natalia F Smirnova, Barkha Srivastava, Stijn E Verleden, Gizem Güneş, Xiao Wu, Cornelia Prehn, Jiaqi Gao, Katharina Heinzelmann, Jutta Lintelmann, Martin Irmler, Stefan Pfeiffer, Michael Schloter, Ralf Zimmermann, Martin Hrabé de Angelis, Johannes Beckers, Jerzy Adamski, Hasan Bayram, Oliver Eickelberg, Ali Önder Yildirim
The development of chronic obstructive pulmonary disease (COPD) pathogenesis remains unclear, but emerging evidence supports a crucial role for inducible bronchus-associated lymphoid tissue (iBALT) in disease progression. Mechanisms underlying iBALT generation, particularly during chronic CS exposure, remain to be defined. Oxysterol metabolism of cholesterol is crucial to immune cell localization in secondary lymphoid tissue. Here, we demonstrate that oxysterols also critically regulate iBALT generation and the immune pathogenesis of COPD In both COPD patients and cigarette smoke (CS)-exposed mice, we identified significantly upregulated CH25H and CYP7B1 expression in airway epithelial cells, regulating CS-induced B-cell migration and iBALT formation...
April 19, 2018: EMBO Molecular Medicine
https://www.readbyqxmd.com/read/29674229/analytical-reverse-time-migration-an-innovation-in-imaging-of-infrastructures-using-ultrasonic-shear-waves
#10
Aziz Asadollahi, Lev Khazanovich
The emergence of ultrasonic dry point contact (DPC) transducers that emit horizontal shear waves has enabled efficient collection of high-quality data in the context of a nondestructive evaluation of concrete structures. This offers an opportunity to improve the quality of evaluation by adapting advanced imaging techniques. Reverse time migration (RTM) is a simulation-based reconstruction technique that offers advantages over conventional methods, such as the synthetic aperture focusing technique. RTM is capable of imaging boundaries and interfaces with steep slopes and the bottom boundaries of inclusions and defects...
April 11, 2018: Ultrasonics
https://www.readbyqxmd.com/read/29673959/a-200k-snp-chip-reveals-a-novel-pacific-salmon-louse-genotype-linked-to-differential-efficacy-of-emamectin-benzoate
#11
Amber M Messmer, Jong S Leong, Eric B Rondeau, Anita Mueller, Cody A Despins, David R Minkley, Matthew P Kent, Sigbjørn Lien, Brad Boyce, Diane Morrison, Mark D Fast, Joseph D Norman, Roy G Danzmann, Ben F Koop
Antiparasitic drugs such as emamectin benzoate (EMB) are relied upon to reduce the parasite load, particularly of the sea louse Lepeophtheirus salmonis, on farmed salmon. The decline in EMB treatment efficacy for this purpose is an important issue for salmon producers around the world, and particularly for those in the Atlantic Ocean where widespread EMB tolerance in sea lice is recognized as a significant problem. Salmon farms in the Northeast Pacific Ocean have not historically experienced the same issues with treatment efficacy, possibly due to the relatively large population of endemic salmonid hosts that serve to both redistribute surviving lice and dilute populations potentially under selection by introducing naïve lice to farms...
April 16, 2018: Marine Genomics
https://www.readbyqxmd.com/read/29673804/infectious-disease-health-services-for-refugees-and-asylum-seekers-during-a-time-of-crisis-a-scoping-study-of-six-european-union-countries
#12
Kayvan Bozorgmehr, Mariya Samuilova, Roumyana Petrova-Benedict, Enrico Girardi, Pierluca Piselli, Alexander Kentikelenis
BACKGROUND: Systematic information on infectious disease services provided to refugees and asylum seekers in the European Union (EU) is sparse. We conducted a scoping study of experts in six EU countries in order to map health system responses related to infectious disease prevention and control among refugees and asylum seekers. METHODS: We conducted 27 semi-structured in-depth interviews with first-line staff and health officials to collect information about existing guidelines and practices at each stage of reception in first-entry (Greece/Italy), transit (Croatia/Slovenia), and destination countries (Austria/Sweden)...
April 11, 2018: Health Policy
https://www.readbyqxmd.com/read/29673760/tumor-suppressive-functions-of-4-mu-on-breast-cancer-cells-of-different-er-status-regulation-of-hyaluronan-has2-cd44-and-specific-matrix-effectors
#13
Theodoros T Karalis, Paraskevi Heldin, Demitrios H Vynios, Thomas Neill, Simone Buraschi, Renato V Iozzo, Nikos K Karamanos, Spyros S Skandalis
The malignant phenotype of various cancers is linked to enhanced expression of hyaluronan, a pro-angiogenic glycosaminoglycan whose expression is suppressed by 4-methylumbelliferone (4-MU), a non-toxic oral agent used as a dietary supplement to improve health and combat prostate cancer. However, little is known about the effects of hyaluronan inhibition by 4-MU on breast cancer cells. In this study, we investigated the role of 4-MU in mammary carcinoma cells with distinct malignant phenotypes and estrogen receptor (ER) status, a major prognostic factor in the clinical management of breast cancers...
April 16, 2018: Matrix Biology: Journal of the International Society for Matrix Biology
https://www.readbyqxmd.com/read/29670284/vertically-migrating-swimmers-generate-aggregation-scale-eddies-in-a-stratified-column
#14
Isabel A Houghton, Jeffrey R Koseff, Stephen G Monismith, John O Dabiri
Biologically generated turbulence has been proposed as an important contributor to nutrient transport and ocean mixing1-3 . However, to produce non-negligible transport and mixing, such turbulence must produce eddies at scales comparable to the length scales of stratification in the ocean. It has previously been argued that biologically generated turbulence is limited to the scale of the individual animals involved 4 , which would make turbulence created by highly abundant centimetre-scale zooplankton such as krill irrelevant to ocean mixing...
April 18, 2018: Nature
https://www.readbyqxmd.com/read/29669827/osteopontin-regulates-hcv-replication-and-assembly-via-interaction-with-hcv-proteins-and-lipid-droplets-and-by-binding-to-receptors-%C3%AE-v%C3%AE-3-and-cd44
#15
Jawed Iqbal, Mehuli Sarkar-Dutta, Steven McRae, Akshaya Ramachandran, Binod Kumar, Gulam Waris
Hepatitis C virus (HCV) replication and assembly occur at the specialized site of endoplasmic reticulum (ER) membranes and lipid droplets (LDs), respectively. Recently, several host proteins have been shown to be involved in HCV replication and assembly. In the present study, we demonstrate the important relationship among osteopontin (OPN), ER and LDs. OPN is a secreted phosphoprotein and overexpression of OPN in hepatocellular carcinoma (HCC) tissue can lead to invasion and metastasis. OPN expression is also enhanced in HCV-associated HCC...
April 18, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29669317/palmitate-activates-ccl4-expression-in-human-monocytic-cells-via-tlr4-myd88-dependent-activation-of-nf-%C3%AE%C2%BAb-mapk-pi3k-signaling-systems
#16
Shihab Kochumon, Ajit Wilson, Betty Chandy, Steve Shenouda, Jaakko Tuomilehto, Sardar Sindhu, Rasheed Ahmad
BACKGROUND/AIMS: Obesity is associated with adipose tissue inflammation which plays a key role in the development of insulin resistance and type 2 diabetes (T2D). Saturated free fatty acids (SFAs) levels are found to be elevated in obesity and T2D. Chemokines are known to have potent inflammatory functions in a wide range of biological processes linked to immunological disorders. Since CCL4 (Chemokine (C-C motif) ligand 4), also known as macrophage inflammatory protein-1β (MIP-1β), plays an important role in the migration of monocytes into the adipose tissue, we investigated the expression of CCL4 in monocytic cells/macrophages following activation with free fatty acid palmitate...
April 13, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29668675/correlated-metabolomic-genomic-and-histologic-phenotypes-in-histologically-normal-breast-tissue
#17
Xuezheng Sun, Delisha A Stewart, Rupninder Sandhu, Erin L Kirk, Wimal W Pathmasiri, Susan L McRitchie, Robert F Clark, Melissa A Troester, Susan J Sumner
Breast carcinogenesis is a multistep process accompanied by widespread molecular and genomic alterations, both in tumor and in surrounding microenvironment. It is known that tumors have altered metabolism, but the metabolic changes in normal or cancer-adjacent, nonmalignant normal tissues and how these changes relate to alterations in gene expression and histological composition are not well understood. Normal or cancer-adjacent normal breast tissues from 99 women of the Normal Breast Study (NBS) were evaluated...
2018: PloS One
https://www.readbyqxmd.com/read/29667779/mir-193a-3p-and-mir-224-mediate-renal-cell-carcinoma-progression-by-targeting-alpha-2-3-sialyltransferase-iv-and-the-phosphatidylinositol-3-kinase-akt-pathway
#18
Yue Pan, Jialei Hu, Jia Ma, Xia Qi, Huimin Zhou, Xiaoyan Miao, Wei Zheng, Li Jia
Tumor metastasis is a major cause of cancer-related death in renal cell carcinoma (RCC). MicroRNAs (miRNAs) have been widely known to modulate proliferation invasion, metastasis and apoptosis of cancer cells. In this study, we aimed to investigate the function and novel target of miR-193a-3p and miR-224 in RCC. The levels of miR-193a-3p and miR-224 were significantly increased in RCC tissues and RCC cell lines. Alpha-2, 3-Sialyltransferase IV (ST3GalIV) was highly expressed in adjacent nontumor tissues and human normal proximal tubular cell line HK-2 compared to RCC tissues and cell lines...
April 18, 2018: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/29667751/suz12-is-a-novel-putative-oncogene-promoting-tumorigenesis-in-head-and-neck-squamous-cell-carcinoma
#19
Yaping Wu, Huijun Hu, Wei Zhang, Zhongwu Li, Pengfei Diao, Dongmiao Wang, Wei Zhang, Yanling Wang, Jianrong Yang, Jie Cheng
The suppressor of zest 12 (SUZ12), one of the core polycomb repressive complex 2 (PRC2) components, has increasingly appreciated as a key mediator during human tumorigenesis. However, its expression pattern and oncogenic roles in head and neck squamous cell carcinoma (HNSCC) remain largely unexplored yet. Here, we sought to determine its expression pattern, clinicopathological significance and biological roles in HNSCC. Through data mining and interrogation from multiple publicly available databases, our bioinformatics analyses revealed that SUZ12 mRNA was significantly overexpressed in multiple HNSCC patient cohorts...
April 18, 2018: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29667003/chemical-genomics-reveals-inhibition-of-breast-cancer-lung-metastasis-by-ponatinib-via-c-jun
#20
Wei Shao, Shasha Li, Lu Li, Kequan Lin, Xinhong Liu, Haiyan Wang, Huili Wang, Dong Wang
Metastasis is the leading cause of human cancer deaths. Unfortunately, no approved drugs are available for anti-metastatic treatment. In our study, high-throughput sequencing-based high-throughput screening (HTS2 ) and a breast cancer lung metastasis (BCLM)-associated gene signature were combined to discover anti-metastatic drugs. After screening of thousands of compounds, we identified Ponatinib as a BCLM inhibitor. Ponatinib significantly inhibited the migration and mammosphere formation of breast cancer cells in vitro and blocked BCLM in multiple mouse models...
April 17, 2018: Protein & Cell
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