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https://www.readbyqxmd.com/read/29028085/nestin-and-cd146-expression-in-metaplastic-breast-cancer-stem-cell-therapy-in-need-lessons-reported-from-a-male-patient
#1
A Tampakis, E C Tampaki, D Trafalis, A Nonni, K Kontzoglou, E Patsouris, M Kontos, G Kouraklis
OBJECTIVE: Metaplastic breast carcinomas represent a rare subtype of breast cancer exhibiting aggressive clinical features. They appear as highly chemoresistant tumors, therefore showing poor outcome and high rates of local recurrence or distant metastasis. CASE REPORT: A 37-year-old greek man was referred to our hospital for evaluation of a locally advanced, ulcerated, fixed, irregular and hard in consistency mass covering his left breast and chest wall. Further work out with CT and biopsy of the tumor revealed a triple negative metaplastic breast cancer classified as cT4cN3cM1...
September 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29026322/molecular-classification-of-esophagogastric-junction-carcinoma-correlated-with-prognosis
#2
Long Zou, Yinying Wu, Ke Ma, Yangwei Fan, Danfeng Dong, Ningyan Geng, Enxiao Li
A novel molecular classification of gastric cancer by the Asian Cancer Research Group (ACRG) is a potential advance in diagnosis and treatment, and it helps to determine prognosis. The use of immunohistochemistry (IHC) rather than gene expression analysis to determine tumor subtypes was evaluated with the aim of determining the feasibility of using the ACRG molecular classification. A total of 69 esophagogastric junction (EGJ) carcinomas were classified as microsatellite instable (MSI, 17.40%, 12 of 69), microsatellite stable with markers of epithelial-to-mesenchymal transition (MSS/EMT, 18...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28991230/alu-rna-accumulation-induces-epithelial-to-mesenchymal-transition-by-modulating-mir-566-and-is-associated-with-cancer-progression
#3
F Di Ruocco, V Basso, M Rivoire, P Mehlen, J Ambati, S De Falco, V Tarallo
Alu sequences are the most abundant short interspersed repeated elements in the human genome. Here we show that in a cell culture model of colorectal cancer (CRC) progression, we observe accumulation of Alu RNA that is associated with reduced DICER1 levels. Alu RNA induces epithelial-to-mesenchymal transition (EMT) by acting as a molecular sponge of miR-566. Moreover, Alu RNA accumulates as consequence of DICER1 deficit in colorectal, ovarian, renal and breast cancer cell lines. Interestingly, Alu RNA knockdown prevents DICER1 depletion-induced EMT despite global microRNA (miRNA) downregulation...
October 9, 2017: Oncogene
https://www.readbyqxmd.com/read/28989294/what-are-the-educational-and-curriculum-needs-for-emergency-medical-technicians-in-taiwan-a-scoping-review
#4
REVIEW
Yu-Tung Chang, Kuang-Chau Tsai, Brett Williams
PURPOSE: The development of emergency medical services (EMS) training in Taiwan is in a transitional phase because of increasing demand for, and advancements in, clinical skill sets. The aim of this study is to review the current literature to compare the key factors of EMS training and education development in different countries in order to provide a new curricula blueprint for the Taiwanese EMS training system. METHOD: The method follows Arksey and O'Malley's six stages of scoping review...
2017: Advances in Medical Education and Practice
https://www.readbyqxmd.com/read/28983895/lncrna-ghet1-promotes-esophageal-squamous-cell-carcinoma-cells-proliferation-and-invasion-via-induction-of-emt
#5
Hongfen Liu, Qiang Zhen, Yakun Fan
BACKGROUND: Recent studies have shown that long noncoding RNA (lncRNA) gastric carcinoma highly expressed transcript 1 (GHET1) was involved in the progression of tumors. However, the role of GHET1 in esophageal squamous cell carcinoma (ESCC) remains unclear. METHODS: The expression of lncRNA GHET1 was examined in 55 paired ESCC tissues and adjacent nontumor tissues. Molecular and cellular techniques were used to explore the role of GHET1 on ESCC cells. RESULTS: Our data showed that GHET1 expression was significantly increased in ESCC tissues and cell lines...
October 4, 2017: International Journal of Biological Markers
https://www.readbyqxmd.com/read/28977927/trim22-confers-poor-prognosis-and-promotes-epithelial-mesenchymal-transition-through-regulation-of-akt-gsk3%C3%AE-%C3%AE-catenin-signaling-in-non-small-cell-lung-cancer
#6
Li Liu, Xiao-Ming Zhou, Fang-Fei Yang, Yuan Miao, Yan Yin, Xue-Jun Hu, Gang Hou, Qiu-Yue Wang, Jian Kang
Expression pattern and biological roles of TRIM22 remains unknown in most human cancers. The present study aims to discover its clinical significance and function in human non-small cell lung cancer (NSCLC). Immunohistochemistry was used to examine TRIM22 expression in 126 cases of NSCLC specimens. TRIM22 protein was upregulated in 70/126 (55.6%) non-small cell lung cancer tissues compared with normal lung tissue. TRIM22 overexpression was associated with advanced TNM stage, positive nodal metastasis and poor prognosis...
September 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28972876/mir-200b-regulates-epithelial-mesenchymal-transition-of-chemo-resistant-breast-cancer-cells-by-targeting-fn1
#7
Xing Yang, Qian Hu, Lan-Xin Hu, Xiao-Rong Lin, Jie-Qiong Liu, Xiao Lin, Xiao-Xiao Dinglin, Jia-Yi Zeng, Hai Hu, Man-Li Luo, He-Rui Yao
Chemotherapy is a cornerstone treatment for early and advanced stage breast cancer patients. However, resistance to chemotherapy remains a major obstacle, resulting in disease relapse and progression. Emerging studies demonstrated that miRNAs regulate chemotherapy-induced epithelial-mesenchymal transition (EMT) and drug resistance, but the underlying mechanisms remain unclear. Here we established a doxorubicin-resistant breast cancer cell line MCF-7/Adr, and found these cells exhibited an EMT phenotype featured by a fibroblast-like morphology, increased the capacity of migration and invasion, and underwent the changes of molecular markers of EMT including E-cadherin, N-cadherin, and vimentin...
September 2017: Discovery Medicine
https://www.readbyqxmd.com/read/28969031/down-regulation-of-lincrna-p21-contributes-to-gastric-cancer-development-through-hippo-independent-activation-of-yap
#8
Ying Chen, Guoqing Wei, Hongwei Xia, Huangfei Yu, Qiuling Tang, Feng Bi
Long intergenic non-coding RNA p21 (lincRNA-p21), known as the direct transcriptional target of p53, was found down-regulated in several human solid tumors. However, little is known about the role of lincRNA-p21 in gastric cancer. The expression levels of lincRNA-p21 in tissue samples and cell lines were detected by qRT-PCR. MGC-803 and MKN-45 cells were transfected with siRNAs targeting lincRNA-p21 or control siRNAs to determine the effect of reduced lincRNA-p21 expression on tumorigenesis. We also overexpressed lincRNA-p21 in MGC-803 cells...
September 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28960588/prospects-for-new-lung-cancer-treatments-that-target-emt-signaling
#9
REVIEW
Yuji Otsuki, Hideyuki Saya, Yoshimi Arima
Lung cancer is the most common cancer worldwide. Treatment options for lung cancer include surgery, radiation therapy, chemotherapy, molecularly targeted therapy including epidermal growth factor receptor (EGFR) or anaplastic lymphoma kinase (ALK) inhibitors, and immunotherapy. These treatments can be administered alone or in combination. Despite therapeutic advances, however, lung cancer remains the leading cause of cancer death. Recent studies have indicated that epithelial-mesenchymal transition (EMT) is associated with malignancy in various types of cancer, and activation of EMT signaling in cancer cells is widely considered to contribute to metastasis, recurrence, or therapeutic resistance...
September 27, 2017: Developmental Dynamics: An Official Publication of the American Association of Anatomists
https://www.readbyqxmd.com/read/28938547/ptip-promotes-recurrence-and-metastasis-of-hepatocellular-carcinoma-by-regulating-epithelial-mesenchymal-transition
#10
Shusheng Leng, Mingyang Yang, Yanhua Zhao, Jingfeng Zhao, Zhijun Zeng, Yunpeng Yang, Jiatian Yuan, Bo Lv, Fan Jun, Bing Wang
Hepatocellular carcinoma (HCC) is one of the most lethal tumors worldwide, which is mainly due to the high recurrence and metastasis rate after hepatectomy. In this study, we found that PTIP expression was dramatically upregulated in human HCC tissues and cell lines. High expression of PTIP was shown to be associated with aggressive clinicopathological features, including liver cirrhosis, vascular invasion and advanced stage. In addition, PTIP overexpression was independently associated with shorter survival and increased HCC recurrence in patients...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28938541/differential-expression-of-circulating-biomarkers-of-tumor-phenotype-and-outcomes-in-previously-treated-non-small-cell-lung-cancer-patients-receiving-erlotinib-vs-cytotoxic-chemotherapy
#11
Mary Jo Fidler, Casey Frankenberger, Richard Seto, Gabriela C Lobato, Cristina L Fhied, Selina Sayidine, Sanjib Basu, Mark Pool, Reem Karmali, Marta Batus, Wen-Rong Lie, David Hayes, Jehangir Mistry, Philip Bonomi, Jeffrey A Borgia
BACKGROUND: The objective of this study was to identify serum biomarkers capable of predicting clinical outcomes in previously-treated NSCLC patients with wild-type for EGFR activating mutations or insufficient tissue for mutation status determination. METHODS: Sixty-six Luminex immunoassays representative of biological themes that emerged from a re-analysis of transcriptome data from the Cancer Genome Atlas (TCGA) were evaluate against pretreatment serum specimens from previously-treated advanced NSCLC patients received either cytotoxic chemotherapy (n=32) or erlotinib (n=79)...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28934275/activation-of-phosphatidylinositol-3-kinase-akt-snail-signaling-pathway-contributes-to-epithelial-mesenchymal-transition-induced-multi-drug-resistance-to-sorafenib-in-hepatocellular-carcinoma-cells
#12
Jiejie Dong, Bo Zhai, Weihua Sun, Fengli Hu, Hao Cheng, Jun Xu
Sorafenib, an orally available kinase inhibitor, is the standard first-line systemic drug for advanced hepatocellular carcinoma (HCC), and it exerts potent inhibitory activity against epithelial-mesenchymal transition (EMT) and multidrug resistance (MDR) by inhibiting mitogen-activated protein kinase (MAPK) signaling in HCC. However, after long-term exposure to sorafenib, HCC cells exhibit EMT and resistance to sorafenib. The activation of AKT by sorafenib is thought to be responsible for the development of these characteristics...
2017: PloS One
https://www.readbyqxmd.com/read/28934230/e-cadherin-a-determinant-molecule-associated-with-ovarian-cancer-progression-dissemination-and-aggressiveness
#13
Marina Rosso, Blanca Majem, Laura Devis, Lara Lapyckyj, María José Besso, Marta Llauradó, María Florencia Abascal, María Laura Matos, Lucia Lanau, Josep Castellví, José Luis Sánchez, Asunción Pérez Benavente, Antonio Gil-Moreno, Jaume Reventós, Anna Santamaria Margalef, Marina Rigau, Mónica Hebe Vazquez-Levin
Ovarian cancer (OC) is the fifth cancer death cause in women worldwide. The malignant nature of this disease stems from its unique dissemination pattern. Epithelial-to-mesenchymal transition (EMT) has been reported in OC and downregulation of Epithelial cadherin (E-cadherin) is a hallmark of this process. However, findings on the relationship between E-cadherin levels and OC progression, dissemination and aggressiveness are controversial. In this study, the evaluation of E-cadherin expression in an OC tissue microarray revealed its prognostic value to discriminate between advanced- and early-stage tumors, as well as serous tumors from other histologies...
2017: PloS One
https://www.readbyqxmd.com/read/28931648/targeting-epithelial-mesenchymal-plasticity-in-cancer-clinical-and-preclinical-advances-in-therapy-and-monitoring
#14
REVIEW
Sugandha Bhatia, James Monkman, Alan Kie Leong Toh, Shivashankar H Nagaraj, Erik W Thompson
The concept of epithelial-mesenchymal plasticity (EMP), which describes the dynamic flux within the spectrum of phenotypic states that invasive carcinoma cells may reside, is being increasingly recognised for its role in cancer progression and therapy resistance. The myriad of events that are able to induce EMP, as well as the more recently characterised control loops, results in dynamic transitions of cancerous epithelial cells to more mesenchymal-like phenotypes through an epithelial-mesenchymal transition (EMT), as well as the reverse transition from mesenchymal phenotypes to an epithelial one...
September 20, 2017: Biochemical Journal
https://www.readbyqxmd.com/read/28929494/crhr2-ucn2-signaling-is-a-novel-regulator-of-mir-7-yy1-fas-circuitry-contributing-to-reversal-of-colorectal-cancer-cell-resistance-to-fas-mediated-apoptosis
#15
Charalabos Pothoulakis, Monica Torre-Rojas, Marco A Duran-Padilla, Jonathan Gevorkian, Odysseas Zoras, Emmanuel Chrysos, George Chalkiadakis, Stavroula Baritaki
Colorectal cancer (CRC) responds poorly to immuno-mediated cytotoxicity. Underexpression of corticotropin-releasing-hormone-receptor-2 (CRHR2) in CRC, promotes tumor survival, growth and Epithelial to Mesenchymal Transition (EMT), in vitro and in vivo. We explored the role of CRHR2 downregulation in CRC cell resistance to Fas/FasL-mediated apoptosis and the underlying molecular mechanism. CRC cell sensitivity to CH11-induced apoptosis was compared between Urocortin-2 (Ucn2)-stimulated parental and CRHR2-overexpressing CRC cell lines and targets of CRHR2/Ucn2 signaling were identified through in vitro and ex vivo analyses...
September 20, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28928908/epithelial-plasticity-and-cancer-stem-cells-major-mechanisms-of-cancer-pathogenesis-and-therapy-resistance
#16
REVIEW
Minal Garg
Epithelial-mesenchymal transition (EMT) has been linked with aggressive tumor biology and therapy resistance. It plays central role not only in the generation of cancer stem cells (CSCs) but also direct them across the multiple organ systems to promote tumor recurrence and metastasis. CSCs are reported to express stem cell genes as well as specific cell surface markers and allow aberrant differentiation of progenies. It facilitates cancer cells to leave primary tumor, acquire migratory characteristics, grow into new environment and develop radio-chemo-resistance...
August 26, 2017: World Journal of Stem Cells
https://www.readbyqxmd.com/read/28928801/ginsenoside-rb1-inhibits-hypoxia-induced-epithelial-mesenchymal-transition-in-ovarian-cancer-cells-by-regulating-microrna-25
#17
Dan Liu, Ting Liu, Yue Teng, Wei Chen, Le Zhao, Xu Li
Metastasis frequently occurs in advanced ovarian cancer, which not only leads to substantial mortality but also becomes a major challenge to effective treatment. Epithelial-mesenchymal transition (EMT) is a key mechanism facilitating cancer metastasis. Targeting the EMT process with more efficacious and less toxic agents to prevent metastasis is of significant therapeutic value for ovarian cancer treatment. The anti-EMT function and mechanism of ginsenoside Rb1, a monomer composition extracted from the traditional Chinese herb Panax ginseng or P...
October 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28928159/bmp4-induces-m2-macrophage-polarization-and-favors-tumor-progression-in-bladder-cancer
#18
Víctor G Martínez, Carolina Rubio, Mónica Martínez-Fernández, Cristina Segovia, Fernando López-Calderón, Marina Garín, Alicia Teijeira, Ester Munera-Maravilla, Alberto Varas, Rosa Sacedón, Felix Guerrero-Ramos, Felipe Villacampa, Federico de la Rosa, Daniel Castellano, Eduardo López-Collazo, Jesus M Paramio, Ángeles Vicente, Marta Dueñas
PURPOSE: Bladder cancer (BC) is a current clinical and social problem. At diagnosis, most patients present non-muscle invasive tumors, characterized by a high recurrence rate, which could progress to muscle invasive disease and metastasis. Bone morphogenetic protein (BMP)-dependent signaling arising from stromal bladder tissue mediates urothelial homeostasis by promoting urothelial cell differentiation. However, the possible role of BMP ligands in BC is still unclear. EXPERIMENTAL DESIGN: Tumor and normal tissue from 68 patients with urothelial cancer were prospectively collected and analyzed for expression of BMP and macrophage markers...
September 19, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28919019/epithelial-to-mesenchymal-transition-epigenetic-reprogramming-driving-cellular-plasticity
#19
REVIEW
Nicolas Skrypek, Steven Goossens, Eva De Smedt, Niels Vandamme, Geert Berx
Epithelial-to-mesenchymal transition (EMT) is a process in which epithelial cells lose their junctions and polarity to gain a motile mesenchymal phenotype. EMT is essential during embryogenesis and adult physiological processes like wound healing, but is aberrantly activated in pathological conditions like fibrosis and cancer. A series of transcription factors (EMT-inducing transcription factor; EMT-TF) regulate the induction of EMT by repressing the transcription of epithelial genes while activating mesenchymal genes through mechanisms still debated...
September 14, 2017: Trends in Genetics: TIG
https://www.readbyqxmd.com/read/28916481/identification-of-2-4-dihydroxy-5-pyrimidinyl-imidothiocarbomate-as-a-novel-inhibitor-to-y-box-binding-protein-1-yb-1-and-its-therapeutic-actions-against-breast-cancer
#20
Vinoth Prasanna Gunasekaran, Kumari Nishi, Dakshinamurthy Sivakumar, Thirunavukkarasu Sivaraman, Ganeshan Mathan
In spite of advances in breast cancer treatment and early diagnosis, drug toxicity, cancer relapse, multidrug resistance and metastasis are the major impediment to the developments of efficient drugs. However, unique druggable targets of cancer cells distinct from the normal cells provide new rationale in cancer treatment. Previous reports clearly emphasize the differential expression and localization of Y box binding protein-1 (YB-1) between normal breast tissues and different stages of breast cancer. Y box binding protein-1 is DNA as well as RNA binding protein involved in transcription and translation regulation of various proteins involved in cancer progression, apoptosis, cell cycle, epithelial to mesenchymal transition (EMT) and drug resistance...
September 12, 2017: European Journal of Pharmaceutical Sciences
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