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https://www.readbyqxmd.com/read/28637327/effect-of-simvastatin-on-baboon-endometriosis
#1
Hugh S Taylor, Myles Alderman, Thomas M D'Hooghe, Asgerally T Fazleabas, Duleba J Antoni
Endometriosis, a common disorder affecting women of reproductive age is characterized by ectopic growth of the endometrial tissues, altered steroid hormone response and inflammation. Previous studies revealed that statins, selective inhibitors of the key step of mevalonate pathway, inhibit growth of endometrial stromal cells in vitro and reduce endometriotic lesions in murine models of endometriosis. This study evaluated the effects of simvastatin on the development of endometriosis in a baboon model of this disease...
June 16, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28637009/jagged-2-jag2-enhances-tumorigenicity-and-chemoresistance-of-colorectal-cancer-cells
#2
Vivek Vaish, Joohwee Kim, Minsub Shim
Colorectal cancer (CRC) is one of the leading causes of cancer-related mortality. Recent studies have stated that NOTCH signaling plays an important role in the development and progression of CRC. However, the role of Jagged-2 (JAG2), one of the NOTCH ligands, has not been delineated in colorectal tumorigenesis and drug resistance. In the present study, we have examined the impact of targeting JAG2 on CRC cells. Among all the members of NOTCH ligands, only the expression of JAG2 was found up-regulated in the intestinal tumors of ApcMin/+ mice as compared to the nearby normal mucosa...
June 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28636939/the-super-enhancer-derived-alncrna-ec7-bloodlinc-potentiates-red-blood-cell-development-in%C3%A2-trans
#3
Juan R Alvarez-Dominguez, Marko Knoll, Austin A Gromatzky, Harvey F Lodish
Enhancer-derived RNAs are thought to act locally by contributing to their parent enhancer function. Whether large domains of clustered enhancers (super-enhancers) also produce cis-acting RNAs, however, remains unclear. Unlike typical enhancers, super-enhancers form large spans of robustly transcribed chromatin, amassing capped and polyadenylated RNAs that are sufficiently abundant to sustain trans functions. Here, we show that one such RNA, alncRNA-EC7/Bloodlinc, is transcribed from a super-enhancer of the erythroid membrane transporter SLC4A1/BAND3 but diffuses beyond this site...
June 20, 2017: Cell Reports
https://www.readbyqxmd.com/read/28636767/aberrant-expression-of-kallikrein-related-peptidase-7-is-correlated-to-human-melanoma-aggressiveness-by-stimulating-cell-migration-and-invasion
#4
Tiphaine Delaunay, Lydia Deschamps, Meriem Haddada, Francine Walker, Antoninus Soosaipillai, Feryel Soualmia, Chahrazade El Amri, Eleftherios P Diamandis, Maria Brattsand, Viktor Magdolen, Dalila Darmoul
Members of the tissue kallikrein-related peptidase (KLK) family not only regulate several important physiological functions, but aberrant expression has also been associated with various malignancies. Clinically, KLKs have been suggested as promising biomarkers for diagnosis and prognosis in many types of cancer. As of yet, expression of KLKs and their role in skin cancers are, however, poorly addressed. Malignant melanoma is an aggressive disease associated with poor prognosis. Hence, diagnostic biomarkers to monitor melanoma progression are needed...
June 21, 2017: Molecular Oncology
https://www.readbyqxmd.com/read/28636190/uchl1-promotes-invasion-of-breast-cancer-cells-through-activating-akt-signaling-pathway
#5
Yanhong Luo, Jianfeng He, Chunlin Yang, Matthew Orange, Xingcong Ren, Nick Blair, Tao Tan, Jin-Ming Yang, Hua Zhu
As a de-ubiquitin enzyme, ubiquitin C-terminal hydrolase (UCH)-L1 has been shown to be overexpressed in several human cancers. However, the function of UCH-L1 in invasion of breast cancers is still unclear. Here we report that the expression of UCH-L1 is significantly higher in cancer cells with higher invasive ability. While ectopic UCH-L1 expression failed to alter cell proliferation in MCF-7 cells, it caused a significant upregulation of cellular invasion. Furthermore, siRNA mediated knockdown of UCH-L1 led to suppression of invasion in UCH-L1 overexpressing MCF-7 cells...
June 21, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28634860/molecular-chaperone-hsp70-and-its-constitutively-active-form-hsc70-play-an-indispensable-role-during-eye-development-of-drosophila-melanogaster
#6
Ajay Kumar, Anand K Tiwari
In the present study, we demonstrate that molecular chaperone Hsp70 and Hsc70 is essential for normal organization and development of ommatidial cells in Drosophila melanogaster eye. An exogenously expressed dominant negative mutant of Hsp70 (K71E) and Hsc70.4 (K71S and D206S) in an eye-specific manner resulted in eye degeneration that includes loss of eye pigment, disorganized ommatidia, abnormality in bristle cell arrangement and reduction in the eye size. The developmental organization of ommatidial cells (cone, photoreceptor, pigment, and bristle cell complex) was disturbed in Hsp70 and Hsc70 mutants...
June 20, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28634046/tumor-antigen-prame-is-up-regulated-by-mzf1-in-cooperation-with-dna-hypomethylation-in-melanoma-cells
#7
Yong-Kyu Lee, Ui-Hyun Park, Eun-Joo Kim, Jin-Taek Hwang, Ji-Cheon Jeong, Soo-Jong Um
Elevated expression of preferentially expressed antigen in melanoma (PRAME) has been implicated in disease progression in a variety of cancers. However, the mechanisms underlying the transcriptional regulation of PRAME remain largely unexplored. Initially, we observed that PRAME was elevated in proportion to the malignant potential of melanoma cells. From the in silico prediction of PRAME gene structure, we identified the putative myeloid zinc finger 1 (MZF1) binding sites, which overlap with a CpG-rich region located in the first intron...
June 17, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28633806/il-17-for-therapy
#8
REVIEW
Florian C Kurschus, Sonja Moos
The cytokine IL-17 is now a target for an array of therapeutic monoclonal antibodies supposed to treat a variety of inflammatory diseases. The forerunner Secukinumab, an IL-17A neutralizing antibody, is meanwhile approved as first-line treatments for moderate-to-severe plaque psoriasis, and as second-line treatment for psoriatic arthritis and ankylosing spondylitis. Ixekizumab and Brodalumab, both also targeting the IL-17 pathway, were also recently approved by the FDA for plaque psoriasis. Using mice overexpressing IL-17A in a tissue of choice, we showed that the ectopic expression of this cytokine in keratinocytes resulted in a spontaneous and very strong form of psoriasis-like dermatitis...
June 15, 2017: Journal of Dermatological Science
https://www.readbyqxmd.com/read/28633420/pancreas-fat-and-beta-cell-mass-in-humans-with-and-without-diabetes-an-analysis-in-the-japanese-population
#9
Rie Murakami, Yoshifumi Saisho, Yuusuke Watanabe, Jun Inaishi, Tami Tsuchiya, Kinsei Kou, Seiji Sato, Minoru Kitago, Yuko Kitagawa, Taketo Yamada, Hiroshi Itoh
Context: The mechanisms by which beta cell mass is reduced in patients with type 2 diabetes (T2DM) remain unclear. It has been postulated that ectopic fat deposits in the pancreas induce beta cell apoptosis, leading to the development of diabetes. Objective: The aim of this study was to clarify the effects of intra-pancreatic fat on beta and alpha cell mass in humans with and without diabetes. Design, Subjects and Methods: Using our tissue database, pancreas sections of 72 Japanese non-diabetic (NDM) autopsy cases and 50 diabetic (DM) and 49 age- and BMI-matched NDM patients who underwent pancreatic surgery were analyzed...
June 14, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28633262/intratracheal-thyroid-a-different-approach
#10
Marco Rispoli, Rosario Salvi, Giuseppe La Cerra, Carlo Antonio Leone, Ambra Nicolai, Moana Rossella Nespoli, Antonio Corcione, Salvatore Buono
During embryonic development, the abnormal migration of thyroid tissue may cause ectopic localization of the gland in the intralaryngotracheal space. This case report describes the management of a young patient with a recent diagnosis of asthma. During bronchoscopy, a large mass occupying the tracheal lumen was discovered. After tracheotomy to protect the airway, an incisional biopsy was performed and revealed an intratracheal ectopic thyroid. The deep incisions through the tracheotomy to the base of the lesion allowed colloidal content to leak out of the mass until complete resolution of airway obstruction...
July 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28633190/-intravesical-salpingiosis-case-report-and-review-of-the-literature
#11
N Gilbert, X Guo, J Bauer, M Hennig, C Kümpers, A S Merseburger
Endosalpingiosis of the urinary bladder is a rare benign condition characterised by the presence of ectopic endosalpingeal tissue in the bladder. If histology shows two or more Müllerian-derived components, this condition is referred to as Müllerianosis.To our knowledge less than 20 cases of Müllerianosis and 5 cases of endosalpingiosis have been documented in the literature.Although the pathogenesis remains unclear, two theories exist. The implantation theory assumes that Müllerian-derived tissue gets implanted in the wall of the urinary bladder during pelvic surgery...
June 20, 2017: Aktuelle Urologie
https://www.readbyqxmd.com/read/28632450/combinations-of-activin-a-or-nicotinamide-with-the-pancreatic-transcription-factor-pdx1-support-differentiation-of-human-amnion-epithelial-cells-toward-a-pancreatic-lineage
#12
Shruti Balaji, Yu Zhou, Emmanuel C Opara, Shay Soker
The differentiation of multipotent stem cells toward a pancreatic lineage provides us with an alternative cell-based therapeutic approach to type 1 diabetes and enables us to study pancreas development. The current study aims to study the effect of growth factors such as activin A or nicotinamide, alone and in combinations with the transcription factor, PDX1 (pancreatic and duodenal homeobox-1), on human amnion epithelial cells (hAECs) toward a pancreatic lineage. Ectopic expression of Pdx1 followed by treatment of hAECs with nicotinamide for 4 days resulted in strong induction of pancreatic endoderm and pancreatic progenitor genes, including NKX6...
June 20, 2017: Cellular Reprogramming
https://www.readbyqxmd.com/read/28632130/the-laminar-organization-of-the-drosophila-ellipsoid-body-is-semaphorin-dependent-and-prevents-the-formation-of-ectopic-synaptic-connections
#13
Xiaojun Xie, Masashi Tabuchi, Matthew P Brown, Sarah P Mitchell, Mark N Wu, Alex L Kolodkin
The ellipsoid body (EB) in the Drosophila brain is a central complex (CX) substructure that harbors circumferentially laminated ring (R) neuron axons and mediates multifaceted sensory integration and motor coordination functions. However, what regulates R axon lamination and how lamination affects R neuron function remain unknown. We show here that the EB is sequentially innervated by small-field and large-field neurons, and that early-developing EB neurons play an important regulatory role in EB laminae formation...
June 20, 2017: ELife
https://www.readbyqxmd.com/read/28631568/mir-183-overexpression-inhibits-tumorigenesis-and-enhances-ddp-induced-cytotoxicity-by-targeting-mta1-in-nasopharyngeal-carcinoma
#14
Guanghui Wang, Shujing Wang, Congying Li
MicroRNA 183 (miR-183) was identified to be downregulated in nasopharyngeal carcinoma spheroids and served as a tumor suppressor in nasopharyngeal carcinoma. However, the regulatory mechanism of miR-183 and its role in cisplatin (DDP) resistance in nasopharyngeal carcinoma cells are still unclear. The expression of miR-183 and metastasis-associated protein 1 at messenger RNA and protein levels in nasopharyngeal carcinoma tissues and cells was evaluated using quantitative reverse transcription real-time polymerase chain reaction and western blotting, respectively...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28631522/evidence-based-management-of-non-tubal-ectopic-pregnancies
#15
Aderemi Olaoluwa Alalade, Fredrick John Ennis Smith, Charlotte Emma Kendall, Funlayo Odejinmi
Recent advances in ultrasonography and the use of other modalities including magnetic resonance imaging scans have led to the early and more accurate diagnosis of non-tubal ectopic pregnancies (NTE). As a result, the management of these pregnancies has evolved. This article addresses the management options currently available for NTE. While surgical management remains the mainstay of treatment for ovarian, abdominal and cornual ectopics, there is growing evidence that some of these can be managed medically...
June 20, 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28631167/copper-and-ectopic-expression-of-the-arabidopsis-transport-protein-copt1-alter-iron-homeostasis-in-rice-oryza-sativa-l
#16
Amparo Andrés-Bordería, Fernando Andrés, Antoni Garcia-Molina, Ana Perea-García, Concha Domingo, Sergi Puig, Lola Peñarrubia
Copper deficiency and excess differentially affect iron homeostasis in rice and overexpression of the Arabidopsis high-affinity copper transporter COPT1 slightly increases endogenous iron concentration in rice grains. Higher plants have developed sophisticated mechanisms to efficiently acquire and use micronutrients such as copper and iron. However, the molecular mechanisms underlying the interaction between both metals remain poorly understood. In the present work, we study the effects produced on iron homeostasis by a wide range of copper concentrations in the growth media and by altered copper transport in Oryza sativa plants...
June 19, 2017: Plant Molecular Biology
https://www.readbyqxmd.com/read/28630692/liver-fat-a-relevant-target-for-dietary-intervention-summary-of-a-unilever-workshop
#17
REVIEW
Harry P F Peters, Patrick Schrauwen, Petra Verhoef, Christopher D Byrne, David J Mela, Andreas F H Pfeiffer, Ulf Risérus, Frits R Rosendaal, Vera Schrauwen-Hinderling
Currently it is estimated that about 1 billion people globally have non-alcoholic fatty liver disease (NAFLD), a condition in which liver fat exceeds 5 % of liver weight in the absence of significant alcohol intake. Due to the central role of the liver in metabolism, the prevalence of NAFLD is increasing in parallel with the prevalence of obesity, insulin resistance and other risk factors of metabolic diseases. However, the contribution of liver fat to the risk of type 2 diabetes mellitus and CVD, relative to other ectopic fat depots and to other risk markers, is unclear...
2017: Journal of Nutritional Science
https://www.readbyqxmd.com/read/28630123/absence-of-the-polar-organizing-protein-popz-causes-aberrant-cell-division-in-agrobacterium-tumefaciens
#18
Matthew Howell, Alena Aliashkevich, Anne K Salisbury, Felipe Cava, Grant R Bowman, Pamela J B Brown
Agrobacterium tumefaciens is a rod-shaped bacterium that grows by polar insertion of new peptidoglycan during cell elongation. As the cell cycle progresses, peptidoglycan synthesis at the pole ceases prior to insertion of new peptidoglycan at mid-cell to enable cell division. The A. tumefaciens homolog of the Caulobacter crescentus polar organelle development protein PopZ has been identified as a growth pole marker and a candidate polar growth promoting factor. Here, we characterize the function of PopZ in cell growth and division of A...
June 19, 2017: Journal of Bacteriology
https://www.readbyqxmd.com/read/28630074/the-enterohaemorrhagic-escherichia-coli-effector-espw-triggers-actin-remodeling-in-a-rac1-dependent-manner
#19
Pamela Sandu, Valerie F Crepin, Hauke Drechsler, Andrew D McAinsh, Gad Frankel, Cedric N Berger
Enterohaemorrhagic Escherichia coli (EHEC) is a diarrheagenic pathogen that colonizes the gut mucosa and induces attaching-and-effacing lesions. EHEC employs a type III secretion system (T3SS) to translocate 50 effector proteins that hijack and manipulate host cell signalling pathways, which allow bacterial colonization, subversion of immune responses and disease progression. The aim of this study was to characterize the T3SS effector EspW. We found espW in the sequenced O157:H7 and non-O157 EHEC strains as well as in Shigella boydii Furthermore, a truncated version of EspW, containing the first 206 residues is present in EPEC strains belonging to serotype O55:H7...
June 19, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28630068/ehrlichia-chaffeensis-trp120-moonlights-as-a-hect-e3-ligase-involved-in-self-and-host-ubiquitination-to-influence-protein-interactions-and-stability-for-intracellular-survival
#20
Bing Zhu, Seema Das, Shubhajit Mitra, Tierra R Farris, Jere W McBride
Ehrlichia chaffeensis secretes tandem repeat protein (TRP) effectors that are involved in a diverse array of host cell interactions, some of which directly activate cell signaling pathways, and reprogram host gene transcription to promote survival in the mononuclear phagocyte. However, the molecular details of these effector-host interactions and roles in pathobiology are incompletely understood. In this study, we determined that the E. chaffeensis effector, TRP120, is post-translationally modified by ubiquitin (Ub), and ubiquitination occurs through intrinsic and host-mediated HECT ligase activity...
June 19, 2017: Infection and Immunity
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