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https://www.readbyqxmd.com/read/28499884/inhibition-of-ubiquitin-specific-protease-34-usp34-induces-epithelial-mesenchymal-transition-and-promotes-stemness-in-mammary-epithelial-cells
#1
Eunhye Oh, Ji Young Kim, Daeil Sung, Youngkwan Cho, Nahyun Lee, Hyunsook An, Yoon-Jae Kim, Tae-Min Cho, Jae Hong Seo
Ubiquitin-specific protease 34 (USP34) is a deubiquitinating enzyme that regulates Axin stability and plays a critical role in Wnt/β-catenin signaling. We sought to investigate the role of USP34 on epithelial-mesenchymal (EMT) induction and its effects on mammary epithelial stem cells. USP34 expression levels were relatively lower in MDA-MB-231 and 4T1 mesenchymal-like cells when compared to epithelial-like cells. Inhibition of USP34 in NMuMG cells induced EMT, as evidenced by the upregulation of EMT markers including N-cadherin, phospho-Smad3, Snail and active-β-catenin, as well as the downregulation of Axin 1 and E-cadherin...
May 10, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/28499392/experimental-tumor-growth-of-canine-osteosarcoma-cell-line-on-chick-embryo-chorioallantoic-membrane-in-vivo-studies
#2
Magdalena Walewska, Izabella Dolka, Anna Małek, Anna Wojtalewicz, Agata Wojtkowska, Artur Żbikowski, Roman Lechowski, Katarzyna Zabielska-Koczywąs
The chick embryo chorioallantoic membrane (CAM) model is extensively used in human medicine in preclinical oncological studies. The CAM model has several advantages: low cost, simple experimental approach, time saving and following "3R principles". Research has shown that the human osteosarcoma cell lines U2OS, MMNG-HOS, and SAOS can form tumors on the CAM. In veterinary medicine, this has been described only for feline fibrosarcomas, feline mammary carcinomas and canine osteosarcomas. However, in case of canine osteosarcomas, it has been shown that only non-adherent osteosarcoma stem cells isolated from KTOSA5 and CSKOS cell lines have the ability to form microtumors on the CAM after an incubation period of 5 days, in contrast to adherent KTOSA5 and CSKOS cells...
May 12, 2017: Acta Veterinaria Scandinavica
https://www.readbyqxmd.com/read/28498248/c1galt1-seems-to-promote-in-vitro-disease-progression-in-ovarian-cancer
#3
Chih-Hsing Chou, Miao-Juei Huang, Ying-Yu Liao, Chi-Hau Chen, Min-Chuan Huang
OBJECTIVE: Aberrant glycosylation affects many cellular properties in cancers. The core 1 β1,3-galactosyltransferase (C1GALT1), an enzyme that controls the formation of mucin-type O-glycans, has been reported to regulate hepatocellular and mammary carcinogenesis. This study aimed to explore the role of C1GALT1 in ovarian cancer. METHODS: C1GALT1 expression was assessed in a public database based on microarray data from 1287 ovarian cancer patients and ovarian cancerous tissues...
June 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28487958/effects-of-taz-on-human-dental-pulp-stem-cell-proliferation-and-migration
#4
Songbo Tian, Xiaochao Tian, Yanping Liu, Fusheng Dong, Jie Wang, Xuqian Liu, Zhiyong Zhang, Huizhen Chen
Transcriptional coactivator with PDZ‑binding motif (TAZ) acts as the key downstream regulatory target in the Hippo signaling pathway. TAZ overexpression has been reported to promote cellular proliferation and induce epithelial‑mesenchymal transition in human mammary epithelial cells. However, the effects of TAZ in the regulation of human dental pulp stem cell (hDPSC) proliferation and migration, as well as the molecular mechanisms underlying its actions, remain to be elucidated. The present study demonstrated that TAZ was expressed in hDPSCs...
June 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28487183/mammary-stem-cells-premise-properties-and-perspectives
#5
REVIEW
Bethan Lloyd-Lewis, Olivia B Harris, Christine J Watson, Felicity M Davis
Adult mammary stem cells (MaSCs) drive postnatal organogenesis and remodeling in the mammary gland, and their longevity and potential have important implications for breast cancer. However, despite intense investigation the identity, location, and differentiation potential of MaSCs remain subject to deliberation. The application of genetic lineage-tracing models, combined with quantitative 3D imaging and biophysical methods, has provided new insights into the mammary epithelial hierarchy that challenge classical definitions of MaSC potency and behaviors...
May 6, 2017: Trends in Cell Biology
https://www.readbyqxmd.com/read/28455412/in-vivo-reprogramming-of-non-mammary-cells-to-an-epithelial-cell-fate-is-independent-of-amphiregulin-signaling
#6
Andrea L George, Corinne A Boulanger, Lisa H Anderson, Stéphanie Cagnet, Cathrin Brisken, Gilbert H Smith
AREG-/- mice demonstrate impaired mammary development and form only rudimentary ductal epithelial trees, however, AREG-/- glands are still capable of undergoing alveologenesis and lactogenesis during pregnancy. Transplantation of AREG-/- mammary epithelial cells into cleared mouse mammary fat pads results in a diminished capacity for epithelial growth (∼15%) as compared to wild type mammary epithelial cells. To determine whether ERα and/or AREG signaling were necessary for non-mammary cell redirection, we inoculated either ERα-/- or AREG-/- mammary cells with non-mammary progenitor cells (WapCre/Rosa26LacZ+ male testicular cells or GFP+ embryonic neuronal stem cells)...
April 28, 2017: Journal of Cell Science
https://www.readbyqxmd.com/read/28455398/zeb1-upregulates-msrb3-to-suppress-oncogene-induced-dna-damage
#7
(no author information available yet)
ZEB1 may block oncogene-induced DNA damage in mammary stem cells to prevent chromosomal instability.
April 28, 2017: Cancer Discovery
https://www.readbyqxmd.com/read/28454301/immunohistochemical-profile-of-ing3-protein-in-normal-and-cancerous-tissues
#8
Wen-Feng Gou, Xue-Feng Yang, Dao-Fu Shen, Shuang Zhao, Hong-Zhi Sun, Jun-Sheng Luo, Hua-Chuan Zheng
The inhibitor of growth family, member 3 (ING3) protein may be capable of blocking the cell cycle via activating p53-transactivated promoters of p21 and Bcl2-associated X protein, and may induce apoptosis via a Fas/caspase-8-dependent signaling pathway. In the present study, immunohistochemistry was performed in order to characterize the expression profile of ING3 protein in tissue microarrays containing mouse and human normal tissue, human hepatocellular (n=62), renal clear cell (n=62), pancreatic (n=62), esophageal squamous cell (n=45), cervical squamous cell (n=31), breast (n=144), gastric (n=196), colorectal (n=96), ovarian (n=208), endometrial (n=96) and lung carcinoma (n=192)...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28451590/molecular-signaling-of-progesterone-growth-hormone-wnt-and-her-in-mammary-glands-of-dogs-rodents-and-humans-new-treatment-target-identification
#9
REVIEW
Elpetra P M Timmermans-Sprang, Ana Gracanin, Jan A Mol
Mammary tumors are the most common form of neoplasia in the bitch. Female dogs are protected when they are spayed before the first estrus cycle, but this effect readily disappears and is already absent when dogs are spayed after the second heat. As the ovaries are removed during spaying, ovarian steroids are assumed to play an essential role in tumor development. The sensitivity toward tumor development is already present during early life, which may be caused by early mutations in stem cells during the first estrus cycles...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/28443499/high-expression-of-partitioning-defective-3-like-protein-is-associated-with-malignancy-in-colorectal-cancer
#10
Taiyuan Li, Xiaoyang Liu, Qunguang Jiang, Xiong Lei, Dongning Liu
Partitioning defective 3-like protein is a novel cell polarity protein. Recently, partitioning defective 3-like protein has been demonstrated with tumor-promoting function by disrupting tight junction, inhibiting tumor suppressor liver kinase B1, and maintaining mammary stem cells. For the first time, we studied partitioning defective 3-like protein expression in malignant colorectal cancer. We used immunohistochemistry scoring system to evaluate partitioning defective 3-like protein expression in 196 colorectal cancer tissues and 33 adjacent normal tissues...
April 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28442628/papers-of-note-in-science356-6335
#11
Annalisa M VanHook
This week's articles highlight a peptide that controls myoblast fusion; a metabolic adaptation that enables naked mole-rats to resist the detrimental effects of anoxia; a transcription factor that coordinates signaling in the mammary epithelial stem cell niche; and transgenerational epigenetic inheritance of the response to an environmental stimulus.
April 25, 2017: Science Signaling
https://www.readbyqxmd.com/read/28442393/progesterone-receptors-pr-mediate-stat-actions-pr-and-prolactin-receptor-signaling-crosstalk-in-breast-cancer-models
#12
Katherine A Leehy, Thu H Truong, Laura J Mauro, Carol A Lange
Estrogen is the major mitogenic stimulus of mammary gland development during puberty wherein ER signaling acts to induce abundant PR expression. PR signaling, in contrast, is the primary driver of mammary epithelial cell proliferation in adulthood. The high circulating levels of progesterone during pregnancy signal through PR, inducing expression of the prolactin receptor (PRLR). Cooperation between PR and prolactin (PRL) signaling, via regulation of downstream components in the PRL signaling pathway including JAKs and STATs, facilitates the alveolar morphogenesis observed during pregnancy...
April 22, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28428406/double-duty-for-mammary-stem-cell-niche
#13
EDITORIAL
Beverly A Purnell
No abstract text is available yet for this article.
April 21, 2017: Science
https://www.readbyqxmd.com/read/28423599/re-expression-of-mir-200c-suppresses-proliferation-colony-formation-and-in-vivo-tumor-growth-of-murine-claudin-low-mammary-tumor-cells
#14
Robert Jones, Katrina Watson, Anthony Bruce, Sarah Nersesian, Jenna Kitz, Roger Moorehead
Claudin-low breast cancer is a relatively rare breast cancer subtype. These cancers are typically ER-/PR-/HER2- and express high levels of mesenchymal genes as well as genes associated with inflammation, angiogenesis and stem cell function. In addition to alterations in gene expression, it was recently demonstrated that claudin-low breast cancers express very low levels of the miR-200 family of miRNAs. Given that each miRNA can regulate tens, hundreds or even thousands of genes, miRNAs are being evaluated as therapeutic targets...
April 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28412966/tfap2a-is-a-component-of-the-zeb1-2-network-that-regulates-tgfb1-induced-epithelial-to-mesenchymal-transition
#15
Yoana Dimitrova, Andreas J Gruber, Nitish Mittal, Souvik Ghosh, Beatrice Dimitriades, Daniel Mathow, William Aaron Grandy, Gerhard Christofori, Mihaela Zavolan
BACKGROUND: The transition between epithelial and mesenchymal phenotypes (EMT) occurs in a variety of contexts. It is critical for mammalian development and it is also involved in tumor initiation and progression. Master transcription factor (TF) regulators of this process are conserved between mouse and human. METHODS: From a computational analysis of a variety of high-throughput sequencing data sets we initially inferred that TFAP2A is connected to the core EMT network in both species...
April 17, 2017: Biology Direct
https://www.readbyqxmd.com/read/28402365/vectorization-of-ultrasound-responsive-nanoparticles-in-placental-mesenchymal-stem-cells-for-cancer-therapy
#16
Juan L Paris, Paz de la Torre, M Victoria Cabañas, Miguel Manzano, Montserrat Grau, Ana I Flores, María Vallet-Regí
A new platform constituted by engineered responsive nanoparticles transported by human mesenchymal stem cells is here presented as a proof of concept. Ultrasound-responsive mesoporous silica nanoparticles are coated with polyethylenimine to favor their effective uptake by decidua-derived mesenchymal stem cells. The responsive-release ability of the designed nanoparticles is confirmed, both in vial and in vivo. In addition, this capability is maintained inside the cells used as carriers. The migration capacity of the nanoparticle-cell platform towards mammary tumors is assessed in vitro...
May 4, 2017: Nanoscale
https://www.readbyqxmd.com/read/28394329/a-stemness-related-zeb1-msrb3-axis-governs-cellular-pliancy-and-breast-cancer-genome-stability
#17
Anne-Pierre Morel, Christophe Ginestier, Roxane M Pommier, Olivier Cabaud, Emmanuelle Ruiz, Julien Wicinski, Mojgan Devouassoux-Shisheboran, Valérie Combaret, Pascal Finetti, Christelle Chassot, Christiane Pinatel, Frédérique Fauvet, Pierre Saintigny, Emilie Thomas, Caroline Moyret-Lalle, Joël Lachuer, Emmanuelle Despras, Jean-Luc Jauffret, François Bertucci, Jérôme Guitton, Anne Wierinckx, Qing Wang, Nina Radosevic-Robin, Frédérique Penault-Llorca, David G Cox, Frédéric Hollande, Stéphane Ansieau, Julie Caramel, Daniel Birnbaum, Arnaud M Vigneron, Agnès Tissier, Emmanuelle Charafe-Jauffret, Alain Puisieux
Chromosomal instability (CIN), a feature of most adult neoplasms from their early stages onward, is a driver of tumorigenesis. However, several malignancy subtypes, including some triple-negative breast cancers, display a paucity of genomic aberrations, thus suggesting that tumor development may occur in the absence of CIN. Here we show that the differentiation status of normal human mammary epithelial cells dictates cell behavior after an oncogenic event and predetermines the genetic routes toward malignancy...
May 2017: Nature Medicine
https://www.readbyqxmd.com/read/28390726/effects-of-preweaning-nutrient-intake-in-the-developing-mammary-parenchymal-tissue
#18
F Soberon, M E Van Amburgh
Historically, mammary gland growth has been considered isometric the first 2 mo of life and then allometric until peripuberty. However, recent work indicated that the mammary gland might be responsive to nutrient intake preweaning. The objectives of this study were to describe the effects of nutrient intake preweaning on mammary gland development and to investigate cell specific proliferation during this phase of development. Twelve dairy heifer calves were fed either a fixed amount of milk replacer (MR; control, n = 6) or an amount of MR adjusted for BW (enhanced, n = 6)...
April 5, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28380641/-development-of-an-innovative-cell-isolation-method-for-the-investigation-of-breast-cancer-pathogenesis-and-angiogenesis-for-experimental-in-vitro-and-in-vivo-assays
#19
Annika Weigand, Kereshmeh Tasbihi, Pamela L Strissel, Reiner Strick, Raymund E Horch, Anja M Boos
Breast cancer is the world's most common cancer among women. Autologous lipotransfer is increasingly used for breast reconstruction following surgical removal of the tumour. In cell-assisted lipotransfer, the transplant is enriched with stem cells from adipose tissue (ADSC). Despite positive clinical results, there are some concerns regarding oncological safety due to transplanted stem cells. To date there are only a few breast cancer studies using primary cells from the same patient to enable further investigation into the complexity of cell-cell interactions in breast cancer in an experimental setting...
April 5, 2017: Handchirurgie, Mikrochirurgie, Plastische Chirurgie
https://www.readbyqxmd.com/read/28380418/expression-of-emt-markers-and-mode-of-surgery-are-prognostic-in-phyllodes-tumors-of-the-breast
#20
Xiaolong Feng, Lin Zhao, Honghong Shen, Xiaozhen Liu, Yang Yang, Shuhua Lv, Yun Niu
Phyllodes tumors of the breast are rare neoplasms that account for <1% of all mammary tumors and 2-3% of fibro-epithelial neoplasms of the breast. We evaluated the clinicopathological characteristics of a cohort of 246 Chinese patients in relation to the expression of epithelial-to-mesenchymal (EMT) markers in benign, borderline and malignant tumors and the prognostic value of different surgical regimens. We observed that survival outcomes correlated with the mode of surgical management in the three patient groups...
May 16, 2017: Oncotarget
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