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Mammary gland tumor

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https://www.readbyqxmd.com/read/29142456/secretory-carcinoma-impact-of-translocation-and-gene-fusions-on-salivary-gland-tumor
#1
Ryoko Inaki, Masanobu Abe, Liang Zong, Takahiro Abe, Aya Shinozaki-Ushiku, Tetsuo Ushiku, Kazuto Hoshi
Secretory carcinoma (SC), previously described as mammary analogue secretory carcinoma (MASC), is a recently described salivary gland tumor which morphologically resembles mammary secretory carcinoma. The first description of SC/MASC, reported by Skálová et al. in 2010, was as a rare salivary carcinoma imitating secretory carcinoma of the breast. SC/MASC is a unique salivary gland tumor with morphological overlap with acinic cell carcinoma (AciCC), mucoepidermoid carcinoma (MEC), and adenocarcinoma not otherwise specified (ADC-NOS)...
October 2017: Chinese Journal of Cancer Research, Chung-kuo Yen Cheng Yen Chiu
https://www.readbyqxmd.com/read/29139009/lfm-a13-a-potent-inhibitor-of-polo-like-kinase-inhibits-breast-carcinogenesis-by-suppressing-proliferation-activity-and-inducing-apoptosis-in-breast-tumors-of-mice
#2
Kazim Sahin, Mehmet Tuzcu, Mehmet Yabas, Cemal Orhan, Nurhan Sahin, Ibrahim H Ozercan
The goals of the present study were to define the anticancer activity of LFM-A13 (α-cyano-β-hydroxy-β-methyl-N-(2,5-dibromophenyl)-propenamide), a potent inhibitor of Polo-like kinase (PLK), in a mouse mammary cancer model induced by 7,12-dimethylbenz(a)anthracene (DMBA) in vivo and explore its anticancer mechanism(s). We also examined whether the inhibition of PLK by LFM-A13 would improve the efficiency of paclitaxel in breast cancer growth in vivo. To do this, female BALB/c mice received 1 mg of DMBA once a week for 6 weeks with oral gavage...
November 15, 2017: Investigational New Drugs
https://www.readbyqxmd.com/read/29137220/stromal-cyclin-d1-promotes-heterotypic-immune-signaling-and-breast-cancer-growth
#3
Timothy G Pestell, Xuanmao Jiao, Mukesh Kumar, Amy R Peck, Marco Prisco, Shengqiong Deng, Zhiping Li, Adam Ertel, Mathew C Casimiro, Xiaoming Ju, Agnese Di Rocco, Gabriele Di Sante, Sanjay Katiyar, Alison Shupp, Michael P Lisanti, Pooja Jain, Kongming Wu, Hallgeir Rui, Douglas C Hooper, Zuoren Yu, Aaron R Goldman, David W Speicher, Lisa Laury-Kleintop, Richard G Pestell
The cyclin D1 gene encodes the regulatory subunit of a holoenzyme that drives cell autonomous cell cycle progression and proliferation. Herein we show cyclin D1 abundance is increased >30-fold in the stromal fibroblasts of patients with invasive breast cancer, associated with poor outcome. Cyclin D1 transformed hTERT human fibroblast to a cancer-associated fibroblast phenotype. Stromal fibroblast expression of cyclin D1 (cyclin D1(Stroma)) in vivo, enhanced breast epithelial cancer tumor growth, restrained apoptosis, and increased autophagy...
October 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29128804/hexachlorobenzene-as-a-persistent-organic-pollutant-toxicity-and-molecular-mechanism-of-action
#4
REVIEW
Beata Starek-Świechowicz, Bogusława Budziszewska, Andrzej Starek
Hexachlorobenzene (HCB) is an organochlorine pesticide widely distributed in the environment. Chronic exposure of humans to HCB leads to a number of effects, such as triggering of porphyria, microsomal enzyme induction, thyroid dysfunctions, neurological symptoms, and immunological disorders. In animals, HCB induced hepatic porphyria, neurotoxic effects, and toxic effects on the thyroid function, reproductive system, and immune system. HCB as a dioxin-like compound and a weak ligand of the aryl hydrocarbon receptor (AhR) is a hormonal disruptor...
July 1, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/29119128/whole-mammary-gland-transplantation-in-mice-protocol
#5
Hayley Hansford, Yan Hong, Frances Kittrell, Daniel Medina, Fariba Behbod
Whole Mammary Gland Transplantation involves transplanting an excised mammary gland into another, more suitable host. This method can be used to extend the life of a mammary gland past the mouse's life span by transplanting the mammary gland of an older mouse into a young healthy mouse. As you can see in the video below (Video 1), by attaching it to the abdomen of the mouse, the gland will receive a steady blood supply and both epithelial and stromal cells will remain viable for up to one year. Although this method is not used often, it has been part of several experiments including determining whether the stroma or epithelium is the primary target in chemically induced mouse mammary tumorigenesis (Medina and Kittrell, 2005)...
June 5, 2017: Bio-protocol
https://www.readbyqxmd.com/read/29115583/unfavorable-effect-of-calcitriol-and-its-low-calcemic-analogs-on-metastasis-of-4t1-mouse-mammary-gland-cancer
#6
Artur Anisiewicz, Agata Pawlik, Beata Filip-Psurska, Eliza Turlej, Stanisław Dzimira, Magdalena Milczarek, Katarzyna Gdesz, Diana Papiernik, Joanna Jarosz, Dagmara Kłopotowska, Andrzej Kutner, Andrzej Mazur, Joanna Wietrzyk
Low vitamin D status is considered as a risk factor for breast cancer and has prognostic significance. Furthermore, vitamin D deficiency increases after adjuvant cancer therapy, which alters bone metabolism increasing the risk of osteoporosis. It is now postulated that vitamin D supplementation in breast cancer treatment delays the recurrence of cancer thereby extending survival. We evaluated the impact of calcitriol and its low-calcemic analogs, PRI‑2191 and PRI‑2205, on the tumor growth, angiogenesis, and metastasis of 4T1 mouse mammary gland cancer...
November 2, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/29109428/serial-omics-of-p53-brca1-mouse-breast-tumor-and-normal-mammary-gland
#7
Susanne B Breitkopf, Mateus De Oliveira Taveira, Min Yuan, Gerburg M Wulf, John M Asara
This study demonstrates a liquid-liquid extraction for the sequential tandem mass spectrometry (LC-MS/MS) analysis of non-polar lipids, polar metabolites, proteins and phosphorylation sites from a single piece of tissue. Extraction of 10 mg BRCA-/-, p53-/- breast tumor tissue or normal mammary gland tissue with methyl-tert-butyl ether (MTBE) results in three phases: an upper non-polar phase containing 1,382 lipids, a lower polar phase with 805 metabolites and a precipitated protein pellet with 4,792 proteins with 1,072 phosphorylation sites...
November 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29104113/primary-mammary-analogue-secretory-carcinoma-of-the-lung-a-case-report
#8
Tao Huang, Jonathan B McHugh, Gerald J Berry, Jeffrey L Myers
Mammary analogue secretory carcinoma (MASC) is a recently discovered salivary gland tumor described mostly in the major salivary glands and occasionally in the skin. We report a primary endobronchial tumor with histology, immunophenotype, and ETV6 rearrangement characteristic of MASC in a 62-year-old woman. The diagnosis was initially made on a transbronchial biopsy with FISH confirmation of ETV6 rearrangement. The patient underwent lobectomy demonstrating a large endobronchial mass. To our knowledge, this is the first report of MASC arising as a primary pulmonary tumor...
November 2, 2017: Human Pathology
https://www.readbyqxmd.com/read/29101636/lyp-1-conjugated-nanoparticles-for-magnetic-resonance-imaging-of-triple-negative-breast-cancer
#9
Abedelnasser Abulrob, Slavisa Corluka, Barbara Blasiak, B Gino Falonne, Dragana Ponjevic, John Matyas, Boguslaw Tomanek
PURPOSE: Triple-negative breast cancer (TNBC) does not express estrogen receptor, progesterone receptor, or Her2/neu. Both diagnosis and treatment of TNBC remain a clinical challenge. LyP-1 is a cyclic 9 amino acid peptide that can bind to breast cancer cells. The goal of this study was to design and characterize LyP-1 conjugated to fluorescent iron oxide nanoparticles (LyP-1-Fe3O4-Cy5.5) as a contrast agent for improved and specific magnetic resonance imaging (MRI) in a preclinical model of TNBC...
November 3, 2017: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
https://www.readbyqxmd.com/read/29096654/the-analgesic-effects-of-triptolide-in-the-bone-cancer-pain-rats-via-inhibiting-the-upregulation-of-hdacs-in-spinal-glial-cells
#10
Xiao-Fan Hu, Xiao-Tao He, Kai-Xiang Zhou, Chen Zhang, Wen-Jun Zhao, Ting Zhang, Jin-Lian Li, Jian-Ping Deng, Yu-Lin Dong
BACKGROUND: Bone cancer pain (BCP) severely compromises the quality of life, while current treatments are still unsatisfactory. Here, we tested the antinociceptive effects of triptolide (T10), a substance with considerable anti-tumor efficacies on BCP, and investigated the underlying mechanisms targeting the spinal dorsal horn (SDH). METHODS: Intratibial inoculation of Walker 256 mammary gland carcinoma cells was used to establish a BCP model in rats. T10 was intrathecally injected, and mechanical allodynia was tested by measuring the paw withdrawal thresholds (PWTs)...
November 2, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29081930/mammary-analogue-secretory-carcinoma-of-salivary-glands-diagnostic-pitfall-with-distinct-immunohistochemical-profile-and-molecular-features
#11
Oliver Bissinger, Carolin Götz, Andreas Kolk, Henning A Bier, Abbas Agaimy, Henning Frenzel, Sven Perner, Julika Ribbat-Idel, Klaus Dietrich Wolff, Wilko Weichert, Caroline Mogler
Mammary analogue secretory carcinoma (MASC) is a newly defined entity among salivary gland malignancies which has just been established in the 4(th) edition of the WHO classification of head and neck tumors. MASC (synonym: secretory carcinoma) are characterized by a specific rearangement of the ETV6 gene locus. Here, we present a series of 3 MASC cases including clinical data with follow-up for up to 26 months. All tumours immunhistochemically displayed strong positivity for cytokeratin 7, and mammaglobin, focal positivity for S100, cytokeratin 5/6 and muc-4...
October 3, 2017: Rare Tumors
https://www.readbyqxmd.com/read/29079540/il-18-contributes-to-bone-cancer-pain-by-regulating-glia-cells-and-neuron-interaction
#12
Su Liu, Yue-Peng Liu, You Lv, Jun-Li Yao, Dong-Mei Yue, Mao-Yin Zhang, Dun-Yi Qi, Gong-Jian Liu
BACKGROUND: Glia cells hyperactivity has been proposed to be responsible for chronic pain, however, the mechanisms remain unclear. IL-18, released from glial cells, has been reported to be involved in neuropathic pain. Here, we investigated the role of IL-18 in bone cancer pain. METHODS: Bone cancer pain was mimicked by injecting Walker-256 mammary gland carcinoma cells into the intramedullary space of the tibia in rats. Expression and location of IL-18 and IL-18 receptor were tested...
October 24, 2017: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/29076877/the-role-of-molecular-testing-in-the-differential-diagnosis-of-salivary-gland-carcinomas
#13
Alena Skálová, Göran Stenman, Roderick H W Simpson, Henrik Hellquist, David Slouka, Tomas Svoboda, Justin A Bishop, Jennifer L Hunt, Ken-Ichi Nibu, Alessandra Rinaldo, Vincent Vander Poorten, Kenneth O Devaney, Petr Steiner, Alfio Ferlito
Salivary gland neoplasms are a morphologically heterogenous group of lesions that are often diagnostically challenging. In recent years, considerable progress in salivary gland taxonomy has been reached by the discovery of tumor type-specific fusion oncogenes generated by chromosome translocations. This review describes the clinicopathologic features of a selected group of salivary gland carcinomas with a focus on their distinctive genomic characteristics. Mammary analog secretory carcinoma is a recently described entity characterized by a t(12;15)(p13;q25) translocation resulting in an ETV6-NTRK3 fusion...
October 26, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/29076873/molecular-profiling-of-mammary-analog-secretory-carcinoma-revealed-a-subset-of-tumors-harboring-a-novel-etv6-ret-translocation-report-of-10-cases
#14
Alena Skalova, Tomas Vanecek, Petr Martinek, Ilan Weinreb, Todd M Stevens, Roderick H W Simpson, Martin Hyrcza, Niels J Rupp, Martina Baneckova, Michael Michal, David Slouka, Tomas Svoboda, Alena Metelkova, Arghavan Etebarian, Jaroslav Pavelka, Steven J Potts, Jason Christiansen, Petr Steiner, Michal Michal
ETV6 gene abnormalities are well described in tumor pathology. Many fusion partners of ETV6 have been reported in a variety of epithelial, mesenchymal, and hematological malignancies. In salivary gland tumor pathology, however, the ETV6-NTRK3 translocation is specific for (mammary analog) secretory carcinoma, and has not been documented in any other salivary tumor type. The present study comprised a clinical, histologic, and molecular analysis of 10 cases of secretory carcinoma, with typical morphology and immunoprofile harboring a novel ETV6-RET translocation...
October 26, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/29057904/the-ank-repeats-of-notch-4-int3-activate-nf-%C3%AE%C2%BAb-canonical-pathway-in-the-absence-of-rbpj-and-causes-mammary-tumorigenesis
#15
Ahmed Raafat, Sharon Bargo, David McCurdy, Robert Callahan
Transgenic mice expressing the Notch-4 intracellular domain (designated Int3) in the mammary gland have two phenotypes exhibited with 100% penetrance: arrest of mammary alveolar/lobular development and mammary tumorigenesis. Notch-4 signaling is mediated primarily through the interaction of Int3 with the transcription repressor/activator Rbpj. Interestingly, WAP-Int3/Rbpj knockout mice have normal mammary gland development but still developed mammary tumors with a slightly longer latency than the WAP-Int3 mice...
October 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29050261/alpha-linolenic-acid-stabilizes-hif-1-%C3%AE-and-downregulates-fasn-to-promote-mitochondrial-apoptosis-for-mammary-gland-chemoprevention
#16
Subhadeep Roy, Atul Kumar Rawat, Shreesh Raj Sammi, Uma Devi, Manjari Singh, Swetlana Gautam, Rajnish Kumar Yadav, Jitendra Kumar Rawat, Lakhveer Singh, Mohd Nazam Ansari, Abdulaziz S Saeedan, Rakesh Pandey, Dinesh Kumar, Gaurav Kaithwas
Alpha linolenic acid is an essential polyunsaturated fatty acid and is reported to have the anti-cancer potential with no defined hypothesis or mechanism/s. Henceforth present study was in-quested to validate the effect of alpha linolenic acid on mitochondrial apoptosis, hypoxic microenvironment and de novo fatty acid synthesis using in-vitro and in-vivo studies. The IC50 value of alpha linolenic acid was recorded to be 17.55μM against ER+MCF-7 cells. Treatment with alpha linolenic acid was evident for the presence of early and late apoptotic signals along with mitochondrial depolarization, when studied through acridine orange/ethidium bromide and JC-1 staining...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29047390/roles-of-bccip-deficiency-in-mammary-tumorigenesis
#17
Roberto Droz-Rosario, Huimei Lu, Jingmei Liu, Ning-Ang Liu, Shridar Ganesan, Bing Xia, Bruce G Haffty, Zhiyuan Shen
BACKGROUND: Dysregulated DNA repair and cell proliferation controls are essential driving forces in mammary tumorigenesis. BCCIP was originally identified as a BRCA2 and CDKN1A interacting protein that has been implicated in maintenance of genomic stability, cell cycle regulation, and microtubule dynamics. The aims of this study were to determine whether BCCIP deficiency contributes to mammary tumorigenesis, especially for a subset of breast cancers with 53BP1 abnormality, and to reveal the mechanistic implications of BCCIP in breast cancer interventions...
October 18, 2017: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/29045292/ovarian-metastases-of-breast-cancers-with-signet-ring-cells-a-report-of-17-cases-including-14-krukenberg-tumors
#18
Jennifer A Bennett, Robert H Young, Ai-Ying Chuang, Melinda F Lerwill
Krukenberg tumor, defined as metastatic adenocarcinoma to the ovary containing at least 10% signet ring cells, usually arises from the stomach but can also originate from other sites. We reviewed 17 metastatic breast carcinomas to the ovary with signet ring cells to potentially identify features indicative of mammary origin as opposed to other possible primary sites. The patients ranged from 41 to 76 (mean, 53.6) yr. Fourteen had a prior history of invasive breast carcinoma (invasive ductal carcinoma, 4; invasive lobular carcinoma, 3; adenocarcinoma not otherwise specified, 3; carcinoma with ductal and lobular features, 2; and unspecified carcinoma, 2) and metastases were identified 2 to 284 (mean, 79) mo after the original diagnosis...
October 17, 2017: International Journal of Gynecological Pathology
https://www.readbyqxmd.com/read/29038780/pulmonary-ossification-and-microlithiasis-in-a-bitch-with-multicentric-mammary-tumors
#19
Mahir A G Kubba
Microliths and ossification were found in the lungs of a 12-year-old bitch suffering from compound mammary gland tumor which has disseminated in the inguinal lymph node glands and the lungs. Pulmonary ossification appeared grossly as irregular stony sharp particles which infiltrated the lung tissue and were readily recognizable from under the pleura as grayish sharp protruding particles. Microscopic examination revealed the existence of intra-alveolar single or multilobular particles of ossification which are formed of lamellated osseous substance with osteocytes in lacunae...
2017: Open veterinary journal
https://www.readbyqxmd.com/read/29035379/lobular-carcinoma-in-situ-and-invasive-lobular-breast-cancer-are-characterized-by-enhanced-expression-of-transcription-factor-ap-2%C3%AE
#20
Mieke Raap, Malte Gronewold, Henriette Christgen, Silke Glage, Mohammad Bentires-Alj, Shany Koren, Patrick W Derksen, Mirjam Boelens, Jos Jonkers, Ulrich Lehmann, Friedrich Feuerhake, Elna Kuehnle, Oleg Gluz, Ronald Kates, Ulrike Nitz, Nadia Harbeck, Hans H Kreipe, Matthias Christgen
Transcription factor AP-2β (TFAP2B) regulates embryonic organ development and is overexpressed in alveolar rhabdomyosarcoma, a rare childhood malignancy. Gene expression profiling has implicated AP-2β in breast cancer (BC). This study characterizes AP-2β expression in the mammary gland and in BC. AP-2β protein expression was assessed in the normal mammary gland epithelium, in various reactive, metaplastic and pre-invasive neoplastic lesions and in two clinical BC cohorts comprising >2000 patients. BCs from various genetically engineered mouse (GEM) models were also evaluated...
October 16, 2017: Laboratory Investigation; a Journal of Technical Methods and Pathology
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