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https://www.readbyqxmd.com/read/28197382/s100a8-stroma-cells-predict-a-good-prognosis-and-inhibit-aggressiveness-in-colorectal-carcinoma
#1
Si Li, Fangying Xu, Hui Li, Jing Zhang, Anjing Zhong, Bin Huang, Maode Lai
Gene microarray and bioinformatic analysis showed that S100A8 was more abundant in the stroma surrounding tumor buddings (TBs) than in the stroma surrounding primary tumor cells in colorectal carcinomas. Here, S100A8(+) cells in 419 colorectal carcinoma samples were stained by immunohistochemistry and counted using Image-pro plus 6.0. TBs were also counted and biomarkers associated with the epithelial-mesenchymal transition and apoptosis were assessed by immunohistochemistry. We evaluated the association between S100A8(+) cells and clinico-pathological variables as well as survival...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28192182/male-reproductive-toxicity-of-crvi-in-utero-exposure-to-crvi-at-the-critical-window-of-testis-differentiation-represses-the-expression-of-sertoli-cell-tight-junction-proteins-and-hormone-receptors-in-adult-f1-progeny-rats
#2
Kathiresh M Kumar, Mariajoseph Michael Aruldhas, Sheerin L Banu, Balaji Sadasivam, Ganapathy Vengatesh, Karthik M Ganesh, Shobana Navaneethabalakrishnan, Ajith Kumar Navin, Felicia Mary Michael, Sankar Venkatachalam, Jone A Stanley, Ilangovan Ramachandran, Sakhila K Banu, Mohammad Abdulkader Akbarsha
The effect of gestational exposure to CrVI (occupational/environmental pollutant and target to Sertoli cells(SC)) was tested in a rat model during the testicular differentiation from the bipotential gonad may interrupt spermatogenesis by disrupting SC tight junctions(TJ) and it's proteins and hormone receptors. Pregnant Wistar rats were exposed to 50/100/200ppm CrVI through drinking water during embryonic days 9-14. On Postnatal day 120, testes were subjected to ion exchange chromatographic analysis revealed increased level of CrIII in SCs and germ cells, serum and testicular interstitial fluid(TIF)...
February 9, 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/28145100/profiling-of-micrornas-in-tumor-interstitial-fluid-of-breast-tumors-a-novel-resource-to-identify-biomarkers-for-prognostic-classification-and-detection-of-cancer
#3
Ann Rita Halvorsen, Åslaug Helland, Pavel Gromov, Vera Timmermans Wielenga, Maj-Lis Møller Talman, Nils Brunner, Vandana Sandhu, Anne-Lise Børresen-Dale, Irina Gromova, Vilde D Haakensen
It has been hypothesized based on accumulated data that a class of small noncoding RNAs, termed microRNAs, are key factors in intercellular communication. Here, microRNAs present in interstitial breast tumor fluids have been analyzed to identify relevant markers for a diagnosis of breast cancer and to elucidate the cross-talk that exists among cells in a tumor microenvironment. Matched tumor interstitial fluid samples (TIF, n = 60), normal interstitial fluid samples (NIF, n = 51), corresponding tumor tissue specimens (n = 54), and serum samples (n = 27) were collected from patients with breast cancer, and detectable microRNAs were analyzed and compared...
February 2017: Molecular Oncology
https://www.readbyqxmd.com/read/28100501/mdm2-mediates-fibroblast-activation-and-renal-tubulointerstitial-fibrosis-via-p53-independent-pathway
#4
Chen Ye, Hui Tang, Zheng Zhao, Chun-Tao Lei, Chao-Qun You, Jiao Zhang, Pan Gao, Fang-Fang He, Shan Chen, Yumei Wang, Chun Zhang, Hua Su
It is well-recognized that Murine Double Minute gene 2 (MDM2) plays a critical role in cell proliferation and inflammatory processes during tumorigenesis. Also it is reported that MDM2 is expressed in glomeruli and involved in podocyte injury. However, whether MDM2 is implicated in renal fibrosis remains unclear. Here we investigated the role of MDM2 in tubulointerstitial fibrosis (TIF). By immunohistochemical staining and western blotting we confirmed that MDM2 is up-regulated in tubulointerstitial compartment in TIF patients and Unilateral Urethral Obstruction (UUO) mice, which mainly originates from myofibroblasts...
January 18, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28077323/high-glucose-down-regulates-microrna-181a-5p-to-increase-pro-fibrotic-gene-expression-by-targeting-early-growth-response-factor-1-in-hk-2-cells
#5
Ping Xu, Mei-Ping Guan, Jian-Gang Bi, Dan Wang, Zong-Ji Zheng, Yao-Ming Xue
Tubulointerstitial fibrosis (TIF) plays an important role in the progression of renal fibrosis in diabetic nephropathy (DN). Accumulating evidence supports a crucial effect of early growth response factor 1 (Egr1) on renal fibrosis in DN, but the underlying mechanisms are not entirely clear. Here, we explored the aggravating role of Egr1 and identified microRNA-181a-5p (miR-181a-5p) as an upstream regulator of Egr1 in TIF of DN. We demonstrated that overexpression of Egr1 enhanced, whereas small interfering RNA targeting Egr1 decreased the expressions of transforming growth factor β1 (TGF-β1) and fibrosis-related genes including fibronectin and collagen I in human proximal tubule cell line (HK-2) cells...
February 2017: Cellular Signalling
https://www.readbyqxmd.com/read/28059243/modeling-of-edge-effect-in-subaperture-tool-influence-functions-of-computer-controlled-optical-surfacing
#6
Songlin Wan, Xiangchao Zhang, Xiaoying He, Min Xu
Computer controlled optical surfacing requires an accurate tool influence function (TIF) for reliable path planning and deterministic fabrication. Near the edge of the workpieces, the TIF has a nonlinear removal behavior, which will cause a severe edge-roll phenomenon. In the present paper, a new edge pressure model is developed based on the finite element analysis results. The model is represented as the product of a basic pressure function and a correcting function. The basic pressure distribution is calculated according to the surface shape of the polishing pad, and the correcting function is used to compensate the errors caused by the edge effect...
December 20, 2016: Applied Optics
https://www.readbyqxmd.com/read/28045061/feature-selection-and-classification-of-urinary-mrna-microarray-data-by-iterative-random-forest-to-diagnose-renal-fibrosis-a-two-stage-study
#7
Le-Ting Zhou, Yu-Han Cao, Lin-Li Lv, Kun-Ling Ma, Ping-Sheng Chen, Hai-Feng Ni, Xiang-Dong Lei, Bi-Cheng Liu
Renal fibrosis is a common pathological pathway of progressive chronic kidney disease (CKD). However, kidney function parameters are suboptimal for detecting early fibrosis, and therefore, novel biomarkers are urgently needed. We designed a 2-stage study and constructed a targeted microarray to detect urinary mRNAs of CKD patients with renal biopsy and healthy participants. We analysed the microarray data by an iterative random forest method to select candidate biomarkers and produce a more accurate classifier of renal fibrosis...
January 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/27995973/the-angiogenic-secretome-in-vegf-overexpressing-breast-cancer-xenografts
#8
Louis Dore-Savard, Esak Lee, Samata Kakkad, Aleksander S Popel, Zaver M Bhujwalla
The plasticity of cancer cells and the fluidity of the tumor microenvironment continue to present major challenges in the comprehensive understanding of cancer that is essential to design effective treatments. The tumor interstitial fluid (TIF) encompasses the secretome and holds the key to several of the phenotypic characteristics of cancer. Difficulties in sampling this fluid have resulted in limited characterization of its components. Here we have sampled TIF from triple negative and estrogen receptor (ER)-positive human breast tumor xenografts with or without VEGF overexpression...
December 20, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27924736/-septic-arthritis-after-intra-articular-injection-is-rare-does-the-taskforce-infection-prevention-use-a-sledgehammer-to-crack-a-nut
#9
M L Bruens, H J van der Zaag-Loonen, F Steenstra, A M Stemerding, S Wijngaarden
OBJECTIVE: To determine the incidence of septic arthritis (SA) after a joint puncture and reconsider the value of the hygiene measures stipulated by the Taskforce Infection Prevention (TIF). DESIGN: Prospective study. METHOD: We determined the number of joint punctures among general practitioners and specialists in the Apeldoorn area during a three-month period (from October 1, 2013 to December 31, 2013). Secondly, we performed an analysis on the incidence of SAs in this period and the subsequent month, and ascertained if these were related to a joint puncture...
2016: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/27868281/long-term-benefit-of-transoral-incisionless-fundoplication-using-the-esophyx-device-for-the-management-of-gastroesophageal-reflux-disease-responsive-to-medical-therapy
#10
Gerasimos Stefanidis, Nikos Viazis, Nikolaos Kotsikoros, Nikolaos Tsoukalas, Eythymia Lala, Loukas Theocharis, Andreas Fassaris, Spilios Manolakopoulos
Transoral incisionless fundoplication (TIF) using the EsophyX device has been shown to be effective and safe in patients with Gastroesophageal reflux disease (GERD); however, the subset of patients that would mostly benefit from this technique remains unknown. The aim of this study was to evaluate the long-term efficacy and safety of the TIF procedure in patients with a history of esophagitis or proven chronic GERD who have achieved symptom control with the administration of proton pump inhibitors (PPIs) but did not wish to continue receiving medications for life...
November 21, 2016: Diseases of the Esophagus: Official Journal of the International Society for Diseases of the Esophagus
https://www.readbyqxmd.com/read/27857410/edge-control-in-a-computer-controlled-optical-surfacing-process-using-a-heterocercal-tool-influence-function
#11
Haixiang Hu, Xin Zhang, Virginia Ford, Xiao Luo, Erhui Qi, Xuefeng Zeng, Xuejun Zhang
Edge effect is regarded as one of the most difficult technical issues in a computer controlled optical surfacing (CCOS) process. Traditional opticians have to even up the consequences of the two following cases. Operating CCOS in a large overhang condition affects the accuracy of material removal, while in a small overhang condition, it achieves a more accurate performance, but leaves a narrow rolled-up edge, which takes time and effort to remove. In order to control the edge residuals in the latter case, we present a new concept of the 'heterocercal' tool influence function (TIF)...
November 14, 2016: Optics Express
https://www.readbyqxmd.com/read/27706857/blood-cells-serve-as-a-source-of-factor-inducing-rapid-ischemic-tolerance-in-brain
#12
Petra Bonova, Miroslava Nemethova, Milina Matiasova, Martin Bona, Miroslav Gottlieb
Ischemic tolerance (IT) has gained attention as an attractive strategy for improving stroke outcome. Recently, it was shown that signal responsible for rapid IT induction (tolerance induction factor - TIF) is transmitted via circulating blood. In this study, we have hypothesized about the role of the blood cell compartment in TIF production. We used hind-limb ischemia to generate TIF as a rapid preconditioning against transient middle cerebral artery occlusion (MCAO). The essential properties of protein synthesis inhibitors actinomycin D and cycloheximide were utilized to obtain the following results: (i) TIF is proteinaceous...
December 2016: European Journal of Neuroscience
https://www.readbyqxmd.com/read/27693043/influence-of-design-and-clinical-factors-on-the-removal-force-ratio-in-tapered-implant-abutment-interfaces
#13
Josu Aguirrebeitia, Mikel Abasolo, Sinan Müftü, Javier Vallejo
STATEMENT OF PROBLEM: A previous study investigated the effects of the preload and taper-angle mismatch in tapered implant systems on the removal force characteristics of the self-locking mechanism. The present study builds upon the previous one and introduces the effects of the time elapsed between insertion and removal and the presence of saliva in the implant-abutment interface as 2 new additional parameters. PURPOSE: The purpose of this in vitro study was to elucidate the influences of design and clinical parameters on the removal force for implant systems that use tapered interference fit (TIF) type connections by measuring the force needed to remove an abutment from an implant...
September 29, 2016: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/27665563/characterization-of-the-tumor-secretome-from-tumor-interstitial-fluid-tif
#14
Pavel Gromov, Irina Gromova
Tumor interstitial fluid (TIF) surrounds and perfuses bodily tumorigenic tissues and cells, and can accumulate by-products of tumors and stromal cells in a relatively local space. Interstitial fluid offers several important advantages for biomarker and therapeutic target discovery, especially for cancer. Here, we describe the most currently accepted method for recovering TIF from tumor and nonmalignant tissues that was initially performed using breast cancer tissue. TIF recovery is achieved by passive extraction of fluid from small, surgically dissected tissue specimens in phosphate-buffered saline...
2016: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27643624/role-and-association-of-inflammatory-and-apoptotic-caspases-in-renal-tubulointerstitial-fibrosis
#15
You Ke, Hui Tang, Chen Ye, Chun-Tao Lei, Yu-Mei Wang, Hua Su, Chun Zhang, Hua-Jun Jiang
BACKGROUND/AIMS: Caspases, an evolutionary conserved family of aspartate-specific cystein proteases, play pivotal roles in apoptotic and inflammatory signaling. Thus far, 14 mammalian caspases are identified and categorized into 3 distinct sub-types: inflammatory caspases, apoptotic initiator and apoptotic executioner. Caspase-1 is an inflammatory caspase, while caspase-7 belongs to apoptotic executioner. The roles and association of these two distinct types of caspases in renal tubulointerstitial fibrosis (TIF) have not been well recognized...
2016: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/27641688/tif-ia-an-oncogenic-target-of-pre-ribosomal-rna-synthesis
#16
REVIEW
Rui Jin, Wei Zhou
Cancer cells devote the majority of their energy consumption to ribosome biogenesis, and pre-ribosomal RNA transcription accounts for 30-50% of all transcriptional activity. This aberrantly elevated biological activity is an attractive target for cancer therapeutic intervention if approaches can be developed to circumvent the development of side effects in normal cells. TIF-IA is a transcription factor that connects RNA polymerase I with the UBF/SL-1 complex to initiate the transcription of pre-ribosomal RNA...
December 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27637780/increased-urinary-lysophosphatidic-acid-in-mouse-with-subtotal-nephrectomy-potential-involvement-in-chronic-kidney-disease
#17
Koryun Mirzoyan, Anna Baïotto, Aude Dupuy, Dimitri Marsal, Colette Denis, Claire Vinel, Pierre Sicard, Justine Bertrand-Michel, Jean-Loup Bascands, Joost P Schanstra, Julie Klein, Jean-Sébastien Saulnier-Blache
Increased incidence of chronic kidney disease (CKD) with consecutive progression to end-stage renal disease represents a significant burden to healthcare systems. Renal tubulointerstitial fibrosis (TIF) is a classical hallmark of CKD and is well correlated with the loss of renal function. The bioactive lysophospholipid lysophosphatidic acid (LPA), acting through specific G-protein-coupled receptors, was previously shown to be involved in TIF development in a mouse model of unilateral ureteral obstruction. Here, we study the role of LPA in a mouse subjected to subtotal nephrectomy (SNx), a more chronic and progressive model of CKD...
December 2016: Journal of Physiology and Biochemistry
https://www.readbyqxmd.com/read/27614457/lactational-exposure-effect-of-polychlorinated-biphenyl-on-rat-sertoli-cell-markers-and-functional-regulators-in-prepuberal-and-puberal-f1-offspring
#18
E Sugantha Priya, T Sathish Kumar, S Balaji, S Bavithra, P Raja Singh, D Sakthivel, B Ravi Sankar, J Arunakaran
PURPOSE: Polychlorinated biphenyls (PCBs) are persistent and bioaccumulative environmental toxicants acting as endocrine disruptors. Many researches evidenced that PCBs affect the male reproductive system in adult rats and it can transfer from mother to offspring through milk. We investigated whether the lactational exposure to PCBs affects the Sertoli cell function in F1 offspring. METHODS: Dams were orally treated with different doses of PCB-Aroclor 1254 (1, 2 and 5 mg/kg bw/day, respectively) from postpartum day 1-20...
January 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/27561848/dermatomyositis-with-anti-tif-1%C3%AE-antibodies-as-a-presenting-symptom-of-underlying-triple-negative-breast-cancer-a-case-report
#19
Ondřej Kubeček, Tomáš Soukup, Adam Paulík, Jindřich Kopecký
BACKGROUND: Dermatomyositis is an autoimmune myopathy characterized by proximal muscle weakness, muscle inflammation, and typical skin findings. It is a rare disease with an incidence of ~1/100 000. About 15-30 % of adult-onset cases are caused by underlying malignancy and dermatomyositis can be the first symptom of undiagnosed cancer, mainly in the case of anti-transcription intermediary factor 1γ (anti-TIF-1γ) antibodies presence. TIF-1γ is a transcriptional cofactor which is implicated in TGFβ signaling pathway that controls cell proliferation, differentiation, apoptosis, and tumorigenesis...
2016: BMC Cancer
https://www.readbyqxmd.com/read/27553200/viral-proteins-expressed-in-the-protozoan-parasite-eimeria-tenella-are-detected-by-the-chicken-immune-system
#20
Virginia Marugan-Hernandez, Charlotte Cockle, Sarah Macdonald, Elaine Pegg, Colin Crouch, Damer P Blake, Fiona M Tomley
BACKGROUND: Eimeria species are parasitic protozoa that cause coccidiosis, an intestinal disease commonly characterised by malabsorption, diarrhoea and haemorrhage that is particularly important in chickens. Vaccination against chicken coccidiosis is effective using wild-type or attenuated live parasite lines. The development of protocols to express foreign proteins in Eimeria species has opened up the possibility of using Eimeria live vaccines to deliver heterologous antigens and function as multivalent vaccine vectors that could protect chickens against a range of pathogens...
2016: Parasites & Vectors
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