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https://www.readbyqxmd.com/read/28107581/mir-9-plays-a-role-in-il-10-mediated-expression-of-e-cadherin-in-acute-myelogenous-leukemia-cells
#1
Chie Nishioka, Takayuki Ikezoe, Bin Pan, Kailin Xu, Akihito Yokoyama
We previously showed that the CD82/STAT5/IL-10 axis is activated in CD34(+) /CD38(-) acute myelogenous leukemia (AML) cells which favor bone marrow microenvironment. The present study explored the novel biological function of IL-10 in regulation of expression of adhesion molecules in AML cells and found that exposing AML cells to IL-10 induced expression of E-cadherin, but not other adhesion molecules including VLA4, CD29, and LFA1. Downregulation of E-cadherin with a small interfering RNA (siRNA) suppressed the adhesion of leukemia cells to bone marrow-derived mesenchymal stem cells and enhanced the anti-leukemia effect of cytarabine (AraC)...
January 20, 2017: Cancer Science
https://www.readbyqxmd.com/read/28107418/nf-kappab-is-involved-in-the-regulation-of-emt-genes-in-breast-cancer-cells
#2
Bruno R B Pires, Andre L Mencalha, Gerson M Ferreira, Waldemir F de Souza, José A Morgado-Díaz, Amanda M Maia, Stephany Corrêa, Eliana S F W Abdelhay
The metastatic process in breast cancer is related to the expression of the epithelial-to-mesenchymal transition transcription factors (EMT-TFs) SNAIL, SLUG, SIP1 and TWIST1. EMT-TFs and nuclear factor-κB (NF-κB) activation have been associated with aggressiveness and metastatic potential in carcinomas. Here, we sought to examine the role of NF-κB in the aggressive properties and regulation of EMT-TFs in human breast cancer cells. Blocking NF-κB/p65 activity by reducing its transcript and protein levels (through siRNA-strategy and dehydroxymethylepoxyquinomicin [DHMEQ] treatment) in the aggressive MDA-MB-231 and HCC-1954 cell lines resulted in decreased invasiveness and migration, a downregulation of SLUG, SIP1, TWIST1, MMP11 and N-cadherin transcripts and an upregulation of E-cadherin transcripts...
2017: PloS One
https://www.readbyqxmd.com/read/28107182/the-nitrobenzoxadiazole-derivative-mc3181-blocks-melanoma-invasion-and-metastasis
#3
Anastasia De Luca, Debora Carpanese, Maria Cristina Rapanotti, Tara Mayte Suarez Viguria, Maria Antonietta Forgione, Dante Rotili, Chiara Fulci, Egidio Iorio, Luigi Quintieri, Sergio Chimenti, Luca Bianchi, Antonio Rosato, Anna Maria Caccuri
The novel nitrobenzoxadiazole (NBD) derivative MC3181 is endowed with remarkable therapeutic activity in mice bearing both sensitive and vemurafenib-resistant human melanoma xenografts. Here, we report that subtoxic concentrations of this compound significantly reduced invasiveness of BRAF-V600D mutated WM115 and WM266.4 melanoma cell lines derived from the primary lesion and related skin metastasis of the same patient, respectively. The strong antimetastatic activity of MC3181 was observed in both 2D monolayer cultures and 3D multicellular tumor spheroids, and confirmed in vivo by the significant decrease in the number of B16-F10 melanoma lung metastases in drug-treated mice...
January 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28107095/chibby1-knockdown-promotes-mesenchymal-to-epithelial-transition-like-changes
#4
Victoria Fischer, Michael Wong, Feng-Qian Li, Ken-Ichi Takemaru
Chibby1 (Cby1) was originally isolated as a binding partner for β-catenin, a dual function protein in cell-cell adhesion and in canonical Wnt signaling. The canonical Wnt/β-catenin pathway is dysregulated in various diseases including cancer, most notably of the gastrointestinal origin. To investigate the role of Cby1 in colorectal tumorigenesis, we generated stable Cby1-knockdown (KD) SW480 colon cancer cells. Unexpectedly, we found that Cby1 KD induces mesenchymal-to-epithelial transition (MET)-like changes in SW480 as well as in HEK293 cells...
January 20, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28106491/effect-of-an-mg132-sustained-drug-delivery-capsular-ring-on-the-inhibition-of-posterior-capsule-opacification-in-a-rabbit-model
#5
Xuan Bao, Min Hou, Yingyan Qin, Furong Luo, Fu Shang, Mingxing Wu
PURPOSE: To design an MG132-sustained drug delivery capsular ring (SDDCR) and investigate its effect on the inhibition of posterior capsule opacification (PCO) in a rabbit model. METHODS: The SDDCRs were prepared by forming a slice of film made by the mixture of poly lactic-co-glycolic acid (PLGA) and MG132 on the surface of capsular tension rings (CTRs). The drug-loading capacity, entrapment efficiency, and in vitro release of the drug-containing film were detected...
January 20, 2017: Journal of Ocular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28106131/hif-1%C3%AE-induction-during-reperfusion-avoids-maladaptive-repair-after-renal-ischemia-reperfusion-involving-mir127-3p
#6
Elisa Conde, Sara Giménez-Moyano, Laura Martín-Gómez, Macarena Rodríguez, M Edurne Ramos, Elia Aguado-Fraile, Ignacio Blanco-Sanchez, Ana Saiz, María Laura García-Bermejo
Ischemia/reperfusion (I/R) leads to Acute Kidney Injury. HIF-1α is a key factor during organ response to I/R. We previously demonstrated that HIF-1α is induced during renal reperfusion, after ischemia. Here we investigate the role of HIF-1α and the HIF-1α dependent mechanisms in renal repair after ischemia. By interference of HIF-1α in a rat model of renal I/R, we observed loss of expression and mis-localization of e-cadherin and induction of α-SMA, MMP-13, TGFβ, and collagen I. Moreover, we demonstrate that HIF-1α inhibition promotes renal cell infiltrates by inducing IL-1β, TNF-α, MCP-1 and VCAM-1, through NFkB activity...
January 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28106089/release-activity-dependent-control-of-vesicle-endocytosis-by-the-synaptic-adhesion-molecule-n-cadherin
#7
Bernd van Stegen, Sushma Dagar, Kurt Gottmann
At synapses in the mammalian brain, continuous information transfer requires the long-term maintenance of homeostatic coupling between exo- and endocytosis of synaptic vesicles. Because classical endocytosis is orders of magnitude slower than the millisecond-range exocytosis of vesicles, high frequency vesicle fusion could potentially compromise structural stability of synapses. However, the molecular mechanisms mediating the tight coupling of exo- and endocytosis are largely unknown. Here, we investigated the role of the transsynaptic adhesion molecules N-cadherin and Neuroligin1 in regulating vesicle exo- and endocytosis by using activity-induced FM4-64 staining and by using synaptophysin-pHluorin fluorescence imaging...
January 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28105223/mirna-129-5p-suppresses-cell-proliferation-and-invasion-in-lung-cancer-by-targeting-microspherule-protein-1-e-cadherin-and-vimentin
#8
Yongzhou Zhang, Jihong An, Weiling Lv, Tingting Lou, Yunxin Liu, Wenyi Kang
Downregulation of microRNA-129 (miR-129) has been described in various types of cancer, however, the significance of miR-129 in lung cancer has not been investigated. The present study, for the first time, determined miR-129-5p expression levels in both lung cancer cell lines and primary lung cancer tissues and also studied the effect of miR-129-5p on the proliferation and invasiveness of lung cancer cells. The results showed that miR-129-5p expression was significantly reduced in both lung cancer cell lines and primary lung cancer tissues (P<0...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28105207/cisplatin-promotes-mesenchymal-like-characteristics-in-osteosarcoma-through-snail
#9
Shuo Fang, Ling Yu, Hongjun Mei, Jian Yang, Tian Gao, Anyuan Cheng, Weichun Guo, Kezhou Xia, Gaiwei Liu
More than 30% of patients with osteosarcoma succumb to pulmonary metastases. Epithelial-mesenchymal transition (EMT) is a biological process by which tumor cells gain an increased capacity for invasiveness and metastasis. A previous study confirmed the phenomenon of EMT in osteosarcoma, a mesenchymal-derived tumor. However, whether chemotherapy affects EMT remains to be elucidated. In the present study, the osteosarcoma cells were exposed to a sublethal dose of cisplatin, and any surviving cells were assumed to be more resistant to cisplatin...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28105147/fgfr3-silencing-by-sirna-inhibits-invasion-of-a549-cells
#10
Yuhua Li, Xiguang Liu, Hongjun Zhang, Tao Jiang, Wenjing Xiao, Shufen Zhao, Xiaoyun Yu, Fanjie Han
The present study identified that fibroblast growth factor receptor 3 (FGFR3) was significantly upregulated in bone metastasis of lung adenocarcinoma. RNA interference (RNAi) is a powerful approach for treating a wide range of human diseases, including cancer, through downregulating the expression of selected genes. In the present study, the invasiveness of A549 cells cultured in vitro was altered by small interfering (si)RNA targeting FGFR3, and the regulatory effect of silencing FGFR3 on the expression levels of E-cadherin and matrix metalloproteinase (MMP)9 was investigated...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28104986/expression-of-trefoil-factors-and-twist1-in-colorectal-cancer-and-their-correlation-with-metastatic-potential-and-prognosis
#11
Akram Yusup, Bailikezi Huji, Cheng Fang, Fei Wang, Tuerxunjiang Dadihan, Hai-Jiang Wang, Halmurat Upur
AIM: To detect the expression of trefoil factors (TFFs) and TWIST1 in colorectal cancer (CRC) and analyze their correlation with metastasis and survival. METHODS: This study examined the expression of TFF1, TFF3 and TWIST1 in a total of 75 tumor samples, 47 matched normal samples (15 cm from the lesion margin), 30 metastatic lymph nodes, and 10 liver metastatic cancer samples from patients with CRC. The relationship was then analyzed between the protein expression and different clinical records...
January 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28103886/t-cadherin-deficiency-increases-vascular-vulnerability-in-t2dm-through-impaired-no-bioactivity
#12
Han Wang, Ling Tao, Anastasia Ambrosio, Wenjun Yan, Ross Summer, Wayne Bond Lau, Yajing Wang, Xinliang Ma
BACKGROUND: Endothelial dysfunction plays a critical role in the development of type 2 diabetes (T2DM). T-cadherin (T-cad) has gained recognition as a regulator of endothelial cell (EC) function. The present study examined whether T-cad deficiency increases vascular vulnerability in T2DM. METHODS: Vascular segments were isolated from WT or T-cad knockout mice. Endothelial function, total NO accumulation, and the expression of T-cad related proteins were determined...
January 19, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28103577/association-of-rab5-overexpression-in-pancreatic-cancer-with-cancer-progression-and-poor-prognosis-via-e-cadherin-suppression
#13
Takamichi Igarashi, Kenichiro Araki, Takehiko Yokobori, Bolag Altan, Takahiro Yamanaka, Norihiro Ishii, Mariko Tsukagoshi, Akira Watanabe, Norio Kubo, Tadashi Handa, Yasuo Hosouchi, Masahiko Nishiyama, Tetsunari Oyama, Ken Shirabe, Hiroyuki Kuwano
Pancreatic cancer is a common type of cancer with poor prognosis worldwide. Postoperative survival depends on the existence of metastasis. Elucidation of the mechanism underlying cancer progression is important to improve prognosis. The RAS-associated protein RAB5 activates intracellular membrane trafficking, and RAB5 expression is correlated to progression and epithelial mesenchymal transition in various cancers.The expression of RAB5 and E-cadherin in 111 pancreatic cancer samples was investigated by immunohistochemical staining, and the relationship among RAB5 expression, clinicopathological factors, and E-cadherin expression was assessed...
January 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28103576/a-new-model-of-multi-visceral-and-bone-metastatic-prostate-cancer-with-perivascular-niche-targeting-by-a-novel-endothelial-specific-adenoviral-vector
#14
Zhi Hong Lu, Sergey Kaliberov, Rebecca E Sohn, Lyudmila Kaliberova, Yingqiu Du, Julie L Prior, Daniel J Leib, Anne Chauchereau, Jennifer K Sehn, David T Curiel, Jeffrey M Arbeit
While modern therapies for metastatic prostate cancer (PCa) have improved survival they are associated with an increasingly prevalent entity, aggressive variant PCa (AVPCa), lacking androgen receptor (AR) expression, enriched for cancer stem cells (CSCs), and evidencing epithelial-mesenchymal plasticity with a varying extent of neuroendocrine transdifferentiation. Parallel work revealed that endothelial cells (ECs) create a perivascular CSC niche mediated by juxtacrine and membrane tethered signaling. There is increasing interest in pharmacological metastatic niche targeting, however, targeted access has been impossible...
January 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28101578/a-22q11-2-amplification-in-the-region-encoding-microrna-650-correlates-with-the-epithelial-to-mesenchymal-transition-in-breast-cancer-primary-cultures-of-mexican-patients
#15
M Lango-Chavarría, G K Chimal-Ramírez, M E Ruiz-Tachiquín, N A Espinoza-Sánchez, M C Suárez-Arriaga, E M Fuentes-Pananá
Breast cancer ranks first in incidence and mortality in working age women. Cancer initiation and progression relies on accumulation of genetic and epigenetic aberrations that alter cellular processes, among them, epithelial to mesenchymal transition (EMT) denotes particularly aggressive neoplasias given its capacity to invade and metastasize. Several microRNAs (miRNA) have been found able to regulate gene expression at the core of EMT. In this study, the Affymetrix CytoScan HD array was used to analyze three different primary tumor cell isolates from Mexican breast cancer patients...
February 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28101343/effect-of-1-25-oh-2d3-on-transdifferentiation-of-rat-renal-tubular-epithelial-cells-induced-by-high-glucose
#16
Hongtao Hu, Shen Xu, Shuang Hu, Yue Gao, Hua Shui
Deficiency in vitamin D and its active metabolite is a characteristic of chronic kidney diseases (CKDs). Previous studies have reported that 1α,25-dihydroxyvitamin D3 [1,25(OH)2D3], the active form of vitamin D, can attenuate renal interstitial fibrosis. The present study aimed to explore the effect of 1,25(OH)2D3 on the transdifferentiation of NRK-52E rat renal tubular epithelial cells (RTECs) induced by high glucose, as well as the expression of vitamin D receptor (VDR) and production of angiotensin (Ang) II...
December 2016: Biomedical Reports
https://www.readbyqxmd.com/read/28101209/significance-of-interstitial-tumor-associated-macrophages-in-the-progression-of-lung-adenocarcinoma
#17
Bing-Sheng Sun, Bao-Xiang Pei, Kang Zhang, Lu-Chang Zhang, Guang-Jing Zhang, Ji-Kuan Liu, Hong-Wei Cui, Fen Pan, Zhen-Fa Zhang
Stepwise progression from adenocarcinoma in situ (AIS) and minimally invasive adenocarcinoma (MIA) to lepidic predominant adenocarcinoma (LPA) was proposed by various scholars. Interstitial tumor-associated macrophages (TAMs) and various potential chemokines involved in the progression from AIS/MIA to LPA were hypothesized. In the present study, immunohistochemistry or immunofluorescent double staining was used to detect the expression of the TAMs marker cluster of differentiation (CD) 68, tumor-derived colony-stimulating factor (CSF)-1, interleukin (IL)-6, matrix metalloproteinase (MMP)-2, E-cadherin and Snail in lung adenocarcinoma specimens, including AIS/MIA, LPA and other types...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28101202/cadherin-11-expression-is-upregulated-in-invasive-human-breast-cancer
#18
Kamil Pohlodek, Yen Y Tan, Christian F Singer, Daphne Gschwantler-Kaulich
Loss of expression of cadherin-11 protein is correlated with a loss of epithelial phenotype and a gain in tumor cell proliferation and invasion. It has been hypothesized that cadherin-11 may be a molecular marker for a more aggressive subtype of breast cancer. The present study examined the expression of the mesenchymal gene/protein cadherin-11 in malignant, benign and healthy breast cancer samples. A paraffin-embedded tissue microarray of both malignant and benign/healthy breast tumor was used. Clinicopathological parameters, including age, grading, tumor size, hormone receptors and HER2 receptors status were obtained from patient medical records...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28100615/rhinovirus-c-asthma-and-cell-surface-expression-of-virus-receptor-cdhr3
#19
Ann C Palmenberg
Human rhinoviruses of the A, B, and C species are defined agents of the common cold. But more than that, the RV-A and RV-C are the dominant cause of hospitalization-category infections in young children, especially those with asthma. The RV-C use of cadherin-related family member 3 (CDHR3) as its cellular receptor, creates a direct phenotypic link between human genetics ("G" vs "A" alleles cause Cys529 vs Tyr529 protein variants) and the efficiency with which RV-C can infect cells. With a lower cell surface display density, the human-specific Cys529 variant apparently confers partial protection from the severest virus-induced asthma episodes...
January 18, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28100275/cell-in-cell-structures-are-more-potent-predictors-of-outcome-than-senescence-or-apoptosis-in-head-and-neck-squamous-cell-carcinomas
#20
Hannah Schenker, Maike Büttner-Herold, Rainer Fietkau, Luitpold V Distel
BACKGROUND: This study sheds light on cell inactivating processes with focus on the phenomenon of cell-in-cell (CIC). Cell-in-cell describes a cell process where one cell is being engulfed by another non-professional phagocyte. We determined frequency and prognostic impact of CIC structures (CICs) as well as of senescent and apoptotic cells in head and neck squamous cell carcinomas (HNSCC). METHODS: These different forms of cell inactivation as well as the proportion of proliferating and tumor cells were assessed in 169 pre-radiochemotherapy biopsies and 32 post-therapy tumor resections by immunohistochemistry of tissue microarrays...
January 18, 2017: Radiation Oncology
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