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https://www.readbyqxmd.com/read/28217810/-effects-of-intrathecal-administration-of-am22-52-on-mechanical-allodynia-and-ccl2-expression-in-drg-in-bone-cancer-rats
#1
Ya-Juan Chen, Yuan-Hui Huo, Yanguo Hong
The pain peptide adrenomedullin (AM) plays a pivotal role in pathological pain. The present study was designed to investigate the effect of blockade of AM receptor on bone cancer pain (BCP) and its mechanism. BCP was developed by inoculation of Walker 256 mammary gland carcinoma cells in the tibia medullary cavity of Sprague Dawley rats. The selective AM receptor antagonist AM22-52 was administered intrathecally on 15 d after the inoculation. Quantitative real-time PCR was used to detect mRNA level of CC chemokine ligand 2 (CCL2) in dorsal root ganglion (DRG)...
February 25, 2017: Sheng Li Xue Bao: [Acta Physiologica Sinica]
https://www.readbyqxmd.com/read/28215639/gata3-expression-and-its-relationship-with-clinicopathological-parameters-in-invasive-breast-carcinomas
#2
A Cakir, I Isik Gonul, O Ekinci, B Cetin, M Benekli, O Uluoglu
GATA3, as a transcription factor, is associated with estrogen receptor (ER) expression and necessary for luminal cell differentiation in mammary glands. Association of GATA3 expression with clinicopathological parameters, molecular subtypes of tumors, disease free survival (DFS) and overall survival (OS) for breast carcinoma patients were evaluated in this study. We immunohistochemically stained GATA3, CK5/6, EGFR, CK14 and vimentin on tissue microarray blocks of 457 invasive breast carcinomas. Tumors are sub-classified as luminal A, luminal B, HER2 expressing, basal-like and null type according to their hormonal status with cerbB2, CK 5/6 and EGFR expressions...
January 10, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28214893/the-role-of-netrins-and-their-receptors-in-epithelial-mesenchymal-plasticity-during-development
#3
Michael J Murray
Transitions between mesenchymal and epithelial cells are underpinned by changes in motility, adhesion, and polarity. Netrins and their receptors can control each of these cellular properties, and are emerging as important regulators of epithelial mesenchymal plasticity (EMP). Netrins were first identified in the worm Caenorhabditis elegans as secreted chemoattractants/repellents that could guide migrating mesodermal cells and axonal growth cones. Orthologues were subsequently found to play conserved roles in vertebrates and in the vinegar fly Drosophila...
2017: Cells, Tissues, Organs
https://www.readbyqxmd.com/read/28214212/primary-multiple-tumor-with-affection-of-the-thyroid-gland-uterus-urinary-bladder-mammary-gland-and-other-organs
#4
А Romaniuk, M Lyndin, V Smiyanov, Vl Sikora, A Rieznik, Y Kuzenko, H Budko, Yu Moskalenko, L Karpenko, Vol Sikora, O Gladchenko
BACKGROUND: Nowadays multiple primary tumor is characterized by growth and development of two or more tumors in one patient. The total world sickness rate ranges from 1% to 37%. The presence of four or more tumors in one patient is rare case and presented as casuistry. CASE PRESENTATION: We showed a case of multiple primary tumor with metahronic lesion of the thyroid, uterus and breast, followed by synchronous benign tumors of the subcutaneous fat, urinary bladder and gallbladder were considered...
January 19, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28212608/transcriptomic-dynamics-of-breast-cancer-progression-in-the-mmtv-pymt-mouse-model
#5
Ying Cai, Ruben Nogales-Cadenas, Quanwei Zhang, Jhih-Rong Lin, Wen Zhang, Kelly O'Brien, Cristina Montagna, Zhengdong D Zhang
BACKGROUND: Malignant breast cancer with complex molecular mechanisms of progression and metastasis remains a leading cause of death in women. To improve diagnosis and drug development, it is critical to identify panels of genes and molecular pathways involved in tumor progression and malignant transition. Using the PyMT mouse, a genetically engineered mouse model that has been widely used to study human breast cancer, we profiled and analyzed gene expression from four distinct stages of tumor progression (hyperplasia, adenoma/MIN, early carcinoma and late carcinoma) during which malignant transition occurs...
February 17, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28212313/chemoprevention-of-rat-mammary-carcinogenesis-by-apiaceae-spices
#6
Farrukh Aqil, Jeyaprakash Jeyabalan, Radha Munagala, Srivani Ravoori, Manicka V Vadhanam, David J Schultz, Ramesh C Gupta
Scientific evidence suggests that many herbs and spices have medicinal properties that alleviate symptoms or prevent disease. In this study, we examined the chemopreventive effects of the Apiaceae spices, anise, caraway, and celery seeds against 17β-estrogen (E2)-mediated mammary tumorigenesis in an ACI (August-Copenhagen Irish) rat model. Female ACI rats were given either control diet (AIN 93M) or diet supplemented with 7.5% (w/w) of anise, caraway, or celery seed powder. Two weeks later, one half of the animals in each group received subcutaneous silastic implants of E2...
February 16, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28208808/adding-agnus-castus-and-magnolia-to-soy-isoflavones-relieves-sleep-disturbances-besides-postmenopausal-vasomotor-symptoms-long-term-safety-and-effectiveness
#7
Pasquale De Franciscis, Flavio Grauso, Anna Luisi, Maria Teresa Schettino, Marco Torella, Nicola Colacurci
The effectiveness for vasomotor symptoms and sleep disorders plus the long-term safety of a nutraceutical combination of agnus-castus and magnolia extracts combined with soy isoflavones (SI) and lactobacilli were assessed in postmenopausal women. A controlled study was carried out in menopausal women comparing this nutraceutical combination (ESP group) with a formulation containing isoflavones alone (C group) at the dosage recommended. The Kuppermann index, The Pittsburgh Sleep Quality Index (PSQI), and Short Form 36 (SF-36) were determined at baseline, three, six and 12 months...
February 13, 2017: Nutrients
https://www.readbyqxmd.com/read/28207301/mucosal-chemokines
#8
Marcela Hernández-Ruiz, Albert Zlotnik
Several chemokines have important functions in mucosal immunity. While there are many chemokines, 4 of them (CCL25, CCL28, CXCL14, and CXCL17) are especially important in mucosal immunity because they are homeostatically expressed in mucosal tissues. Of these, only CCL25 and CCL28 have been widely recognized as mucosal chemokines. In this study, we review the physiology of these chemokines with specific emphasis on their function in mucosal immunity. CCL25 recruits certain important subsets of T cells that express CCR9 to the small intestine...
February 2017: Journal of Interferon & Cytokine Research
https://www.readbyqxmd.com/read/28203686/ocular-involvement-of-multicentric-malignant-b-cell-lymphoma-in-a-ewe-a-case-report
#9
James O Rushton, Denise Thaller, Reinhild Krametter-Froetscher
An 8.5-year-old, 98 kg female mountain sheep presented with bilateral exophthalmos with reduced retropulsion of the globes, impairing physiologic eyelid closure, sanguineous ocular discharge, as well as swelling of the eyelids and periocular skin. Bilateral vitreal hemorrhage hindering examination of the fundus was further noticed. Systemic signs included reduced general demeanour, presence of a firm mass in the left half of the mammary gland, multiple masses in the area of the vulva and a mass between the shoulder blades...
February 16, 2017: Tierärztliche Praxis. Ausgabe G, Grosstiere/Nutztiere
https://www.readbyqxmd.com/read/28202523/cancer-stem-cells-regulate-cancer-associated-fibroblasts-via-activation-of-hedgehog-signaling-in-mammary-gland-tumors
#10
Giovanni Valenti, Hazel M Quinn, Guus Jje Heynen, Linxiang Lan, Jane D Holland, Regina Vogel, Annika Wulf-Goldenberg, Walter Birchmeier
Many tumors display intracellular heterogeneity, with subsets of cancer stem cells (CSC) that sustain tumor growth, recurrence, and therapy resistance. Cancer associated fibroblasts (CAF) have been shown to support and regulate CSC function. Here we investigated the interactions between CSCs and CAFs in mammary gland tumors driven by combined activation of Wnt/β-catenin and Hgf/Met signaling in mouse mammary epithelial cells. In this setting, CSCs secreted the hedgehog ligand SHH, which regulated CAFs via paracrine activation of Hedgehog signaling...
February 15, 2017: Cancer Research
https://www.readbyqxmd.com/read/28202042/hoxc8-regulates-self-renewal-differentiation-and-transformation-of-breast-cancer-stem-cells
#11
Mansi Shah, Ryan Cardenas, Belinda Wang, Jenny Persson, Nigel P Mongan, Anna Grabowska, Cinzia Allegrucci
BACKGROUND: Homeobox genes are master regulators of cell fate during embryonic development and their expression is altered in cancer. By regulating the balance between cell proliferation and differentiation, they maintain homeostasis of normal tissues. Here, we screened the expression of homeobox genes in mammary stem cells to establish their role in stem cells transformation in breast cancer. METHODS: Using a Homeobox Genes PCR array, we screened 83 homeobox genes in normal cancer breast stem/progenitor cells isolated by flow cytometry...
February 16, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28202015/variant-discovery-in-the-sheep-milk-transcriptome-using-rna-sequencing
#12
Aroa Suárez-Vega, Beatriz Gutiérrez-Gil, Christophe Klopp, Gwenola Tosser-Klopp, Juan José Arranz
BACKGROUND: The identification of genetic variation underlying desired phenotypes is one of the main challenges of current livestock genetic research. High-throughput transcriptome sequencing (RNA-Seq) offers new opportunities for the detection of transcriptome variants (SNPs and short indels) in different tissues and species. In this study, we used RNA-Seq on Milk Sheep Somatic Cells (MSCs) with the goal of characterizing the genetic variation within the coding regions of the milk transcriptome in Churra and Assaf sheep, two common dairy sheep breeds farmed in Spain...
February 15, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28199205/the-mucolipin-1-trpml1-ion-channel-transmembrane-163-tmem163-protein-and-lysosomal-zinc-handling
#13
Math P Cuajungco, Kirill Kiselyov
Lysosomes are emerging as important players in cellular zinc ion (Zn(2+)) homeostasis. The series of work on Zn2+ accumulation in the neuronal lysosomes and the mounting evidence on the role of lysosomal Zn(2+) in cell death during mammary gland involution set a biological precedent for the central role of the lysosomes in cellular Zn(2+) handling. Such a role appears to involve cytoprotection on the one hand, and cell death on the other. The recent series of work began to identify the molecular determinants of the lysosomal Zn(2+) handling...
March 1, 2017: Frontiers in Bioscience (Landmark Edition)
https://www.readbyqxmd.com/read/28198456/mir-2478-inhibits-tgf%C3%AE-1-expression-by-targeting-the-transcriptional-activation-region-downstream-of-the-tgf%C3%AE-1-promoter-in-dairy-goats
#14
Zhuanjian Li, Xianyong Lan, Ruili Han, Jing Wang, Yongzhen Huang, Jiajie Sun, Wenjiao Guo, Hong Chen
In a previous study, miR-2478 was demonstrated to be up-regulated in dairy goat mammary glands during peak lactation compared with the dry period. However, the detailed mechanisms by which miR-2478 regulates physiological lactation and mammary gland development in dairy goats remain unclear. In this study, we used bioinformatics analysis and homologous cloning to predict the target genes of miR-2478 and selected INSR, FBXO11, TGFβ1 and ING4 as candidate target genes of miR-2478. Subsequently, by targeting the 5'UTR of the TGFβ1 gene, we verified that miR-2478 significantly inhibited TGFβ1 transcription and the Pearson's correlation coefficient between miR-2478 expression and TGFβ1 expression was -0...
February 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28194662/mmtv-pymt-and-derived-met-1-mouse-mammary-tumor-cells-as-models-for-studying-the-role-of-the-androgen-receptor-in-triple-negative-breast-cancer-progression
#15
Jessica L Christenson, Kiel T Butterfield, Nicole S Spoelstra, John D Norris, Jatinder S Josan, Julie A Pollock, Donald P McDonnell, Benita S Katzenellenbogen, John A Katzenellenbogen, Jennifer K Richer
Triple-negative breast cancer (TNBC) has a faster rate of metastasis compared to other breast cancer subtypes, and no effective targeted therapies are currently FDA-approved. Recent data indicate that the androgen receptor (AR) promotes tumor survival and may serve as a potential therapeutic target in TNBC. Studies of AR in disease progression and the systemic effects of anti-androgens have been hindered by the lack of an AR-positive (AR+) immunocompetent preclinical model. In this study, we identified the transgenic MMTV-PyMT (mouse mammary tumor virus-polyoma middle tumor-antigen) mouse mammary gland carcinoma model of breast cancer and Met-1 cells derived from this model as tools to study the role of AR in breast cancer progression...
February 13, 2017: Hormones & Cancer
https://www.readbyqxmd.com/read/28194567/ultrastructural-characterization-of-mammary-analogue-secretory-carcinoma-of-the-salivary-glands-a-distinct-entity-from-acinic-cell-carcinoma
#16
Julie Guilmette, Gunnlaugur P Nielsen, William C Faquin, Martin Selig, Vânia Nosé, Anthony W S Chi, Peter M Sadow
Mammary analogue secretory carcinoma (MASC) of the salivary glands is a recently described neoplasm of the salivary glands with a characteristic morphology complemented by a specific cytogenetic translocation and gene rearrangements. Although immunophenotypic and cytogenetic differences allow for a more reliable distinction, ultrastructural features can also provide important information about the relationship between MASC, classic acinic cell carcinoma (AciCC), and AciCC intercalated duct cell-predominant variant...
February 13, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28192422/identification-of-quiescent-and-spatially-restricted-mammary-stem-cells-that-are-hormone-responsive
#17
Nai Yang Fu, Anne C Rios, Bhupinder Pal, Charity W Law, Paul Jamieson, Ruijie Liu, François Vaillant, Felicity Jackling, Kevin He Liu, Gordon K Smyth, Geoffrey J Lindeman, Matthew E Ritchie, Jane E Visvader
Despite accumulating evidence for a mammary differentiation hierarchy, the basal compartment comprising stem cells remains poorly characterized. Through gene expression profiling of Lgr5(+) basal epithelial cells, we identify a new marker, Tetraspanin8 (Tspan8). Fractionation based on Tspan8 and Lgr5 expression uncovered three distinct mammary stem cell (MaSC) subsets in the adult mammary gland. These exist in a largely quiescent state but differ in their reconstituting ability, spatial localization, and their molecular and epigenetic signatures...
February 13, 2017: Nature Cell Biology
https://www.readbyqxmd.com/read/28191637/mammary-alveolar-epithelial-cells-convert-to-brown-adipocytes-in-post-lactating-mice
#18
Antonio Giordano, Jessica Perugini, David M Kristensen, Loris Sartini, Andrea Frontini, Shingo Kajimura, Karsten Kristiansen, Saverio Cinti
During pregnancy and lactation, subcutaneous white adipocytes in the mouse mammary gland transdifferentiate reversibly to milk-secreting epithelial cells. In this study, we demonstrate by transmission electron microscopy that in the post-lactating mammary gland interscapular multilocular adipocytes found close to the mammary alveoli contain milk protein granules. Use of the Cre-loxP recombination system allowed showing that the involuting mammary gland of whey acidic protein-Cre/R26R mice, whose secretory alveolar cells express the lacZ gene during pregnancy, contains some X-Gal-stained and uncoupling protein 1-positive interscapular multilocular adipocytes...
February 12, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28190925/spontaneous-infarcted-adenoma-of-the-mammary-gland-in-a-wistar-hannover-galas-rat
#19
Kohei Matsushita, Takeshi Toyoda, Kaoru Inoue, Tomomi Morikawa, Mizuki Sone, Kumiko Ogawa
Spontaneous massive infarction of mammary gland tumors has been reported to occur infrequently in humans. A subcutaneous mass (18 × 17 × 10 mm) was observed in the right axilla extending to the chest region of a 110-week-old female Wistar Hannover GALAS rat. Histopathologically, a well-circumscribed mass with lobular structures was present in the subcutis. Most of the mass was occupied by extensive coagulative necrosis of neoplastic cells with relatively uniform acinar and ductal structures. Although each necrotic acinar structure was separated by reticular fibers, periacinar stromal collagen fibers were not abundant...
January 2017: Journal of Toxicologic Pathology
https://www.readbyqxmd.com/read/28190408/net-mineral-requirements-of-dairy-goats-during-pregnancy
#20
C J Härter, L D Lima, D S Castagnino, H O Silva, F O M Figueiredo, N R St-Pierre, K T Resende, I A M A Teixeira
Mineral requirements of pregnant dairy goats are still not well defined; therefore, we investigated the net Ca, P, Mg, Na and K requirements for pregnancy and for maintenance during pregnancy in two separate experiments. Experiment 1 was performed to estimate the net Ca, P, Mg, Na and K requirements in goats carrying single or twin fetuses from 50 to 140 days of pregnancy (DOP). The net mineral requirements for pregnancy were determined by measuring mineral deposition in gravid uterus and mammary gland after comparative slaughter...
February 13, 2017: Animal: An International Journal of Animal Bioscience
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