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https://www.readbyqxmd.com/read/28742884/reduced-expression-of-e-cadherin-and-increased-sialylation-level-in-clear-cell-renal-cell-carcinoma
#1
Małgorzata Borzym-Kluczyk, Iwona Radziejewska, Marzanna Cechowska-Pasko, Barbara Darewicz
Cancer cells are characterized by an aberrant increase in protein N-glycosylation and by disruption of E-cadherin-mediated adherens junctions. However, the relationship between alterations in N-glycosylation process and loss of E-cadherin adhesion in cancer remains unclear. The mechanisms of altered expression of adhesive glycoproteins in cancer cells have not been fully elucidated. Thus, the aim of this study was to examine the expression of E-cadherin and sialyl Lewis(a)/(x), NeuAcα2-3Gal, NeuAcα2-6Gal/GalNAc structures in the normal renal tissue and intermediate and cancerous tissues from patients with clear cell RCC...
July 24, 2017: Acta Biochimica Polonica
https://www.readbyqxmd.com/read/28742200/hypoxia-promotes-epithelial-mesenchymal-transition-of-hepatocellular-carcinoma-cells-via-inducing-twist1-expression
#2
X-D Zhang, X-Q Dong, J-L Xu, S-C Chen, Z Sun
OBJECTIVE: To investigate whether hypoxia microenvironment induced hepatocellular carcinoma cells SMMC-7721 epithelial-mesenchymal transition (EMT) and to explore the underlying molecular mechanism. MATERIALS AND METHODS: In this study, SMMC-7721 cells were cultured under normoxia and hypoxia conditions, respectively. RT-PCR and Western blot were used to monitor the expression level of EMT-related markers, E-cadherin, and vimentin, as well as hypoxia inducible factor-1α (HIF-1α) and Twist1...
July 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28741985/the-influence-of-fasudil-on-renal-proximal-tubular-cell-epithelial-mesenchymal-transition-induced-by-parathormone
#3
Ziqing Gao, Weiping Zhu, Hua Zhang, Zhonghe Li, Tongxia Cui
BACKGROUND: Renal fibrosis is a common pathway through which a variety of chronic kidney diseases progress to end-stage renal disease. Epithelial-mesenchymal transition (EMT) of renal proximal tubular cells is one of the most important factors in renal fibrosis. This study investigates if fasudil could influence EMT of renal proximal tubular cells. METHODS: HK-2 cells in passage 3-4 were used for all experiments. The cells were divided into five groups and treated with different concentrations of PTH and then observe cellular morphological changes at 0, 24 and 48 h using an inverted microscope and investigate the expression of the epithelial cell marker E-cadherin and the renal fibroblast marker α-smooth muscle actin (α-SMA)...
November 2017: Renal Failure
https://www.readbyqxmd.com/read/28739734/nherf1-suppresses-lung-cancer-cell-migration-by-regulation-of-epithelial-mesenchymal-transition
#4
Fenglian Yang, Yanan Gu, Zehang Zhao, Jing Huang, Wen G Jiang, Shan Cheng
BACKGROUND/AIM: Na(+)/H(+) exchanger regulatory factor 1 (NHERF1) has been reported to interact with many cancer-related proteins and plays an important role in cancer progression. However, little is known about the biological functions of NHERF1 in lung cancer cells. The aim of the current study was to explore whether NHERF1 is involved in transforming growth factor (TGF)-β1-induced epithelial-mesenchymal transition (EMT) in non-small-cell lung cancer cells. MATERIALS AND METHODS: The expression of NHERF1 and EMT-associated markers including E-cadherin, N-cadherin, snail family transcriptional repressor 1 (SNAI1) and snail family transcriptional repressor 2 (SLUG) were analyzed by reverse transcription polymerase chain reaction (RT-PCR) and western blotting...
August 2017: Anticancer Research
https://www.readbyqxmd.com/read/28739718/protein-of-vascular-endothelial-growth-inhibitor-174-inhibits-epithelial-mesenchymal-transition-in-renal-cell-carcinoma-in-vivo
#5
Qiang Zhao, Xiaohu Deng, Baoan Hong, Feng Wang, Xinxin Tang, Yong Yang, Kan Gong, Lin Ye, Wen G Jiang, Ning Zhang
BACKGROUND: Vascular endothelial growth inhibitor (VEGI) is a member of the tumor necrosis factor superfamily, identified as an anti-angiogenic cytokine. However, the effect of VEGI on epithelial-mesenchymal transition (EMT) in renal cell carcinoma (RCC) is still unknown. MATERIALS AND METHODS: In this study, protein VEGI174 was designed and synthesized. Renal cell carcinoma A498 cells were implanted into immune-deficient mice to establish tumor models. Two groups were included: control group treated with saline, and VEGI174-treated group...
August 2017: Anticancer Research
https://www.readbyqxmd.com/read/28739394/ameliorative-effect-of-%C3%AE-tocopherol-on-polychlorinated-biphenyl-pcbs-induced-testicular-sertoli-cell-dysfunction-in-f1-prepuberal-rats
#6
Sugantha Priya Elayapillai, Dhanaraj Teekaraman, Raja Singh Paulraj, Arunakaran Jagadeesan
The study was conducted to investigate the protective role of α-tocopherol against polychlorinated biphenyls (PCBs) induced effect in Sertoli cell function of F1 prepuberal rats. Dams were grouped into six; each group consists of six animals. Group 1-control treated with corn oil as vehicle, group II- 0.5mgPCBs/kg bw/day, group III- 0.5mgPCBs/kg bw/day with α-tocopherol (50mg α-tocopherol/kg bw/day), group IV- 1mgPCBs/kg bwt/day, group V- 1mgPCBs/kg bw/day with α-tocopherol (50mg α-tocopherol/kg bw/day) and group VI - α-tocopherol alone treated orally from postpartum day1-20...
July 21, 2017: Experimental and Toxicologic Pathology: Official Journal of the Gesellschaft Für Toxikologische Pathologie
https://www.readbyqxmd.com/read/28738939/can-tumor-biology-predict-occult-multifocal-disease-in-breast-cancer-patients
#7
Anees B Chagpar, Ali F Cicek, Malini Harigopal
The SHAVE trial is a prospective trial in which 235 women with stage 0 to 3 disease undergoing partial mastectomy were randomized intraoperatively to either have cavity shave`s (CSMs) taken at the time of initial surgery or not. In this study, 9 of the 76 patients (11.8%) with initially negative margins randomized to the "shave" group had occult cancers found in the CSM. Seven of these patients had sufficient primary tumor tissue available for further analysis. These patients were age and stage matched in a 1:2 ratio to other patients in the trial who had no further disease found in their CSM...
July 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28737823/overexpression-of-non%C3%A2-smc-condensin%C3%A2-i-complex-subunit%C3%A2-g-serves-as-a-promising-prognostic-marker-and-therapeutic-target-for-hepatocellular-carcinoma
#8
Wanwei Liu, Bo Liang, Hongliang Liu, Yong Huang, Xiangbao Yin, Fan Zhou, Xin Yu, Qian Feng, Enliang Li, Zhenhong Zou, Linquan Wu
The non‑SMC condensin I complex subunit G (NCAPG) that organizes the coiling topology of individual chromatids, represents an overexpressed antigen in various types of cancer, and also contributes to restructuring chromatin into rod‑shaped mitotic chromosomes and ensuring the segregation of sister chromatid during cell division. In this study, we investigated the association between NCAPG expression and the biological behavior of hepatocellular carcinoma (HCC) to further explore the potential of NCAPG as a therapeutic target...
July 24, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28736528/linking-ventilator-injury-induced-leak-across-the-blood-gas-barrier-to-derangements-in-murine-lung-function
#9
Bradford J Smith, Elizabeth Bartolak-Suki, Bela Suki, Gregory S Roy, Katharine L Hamlington, Chantel M Charlebois, Jason H T Bates
Mechanical ventilation is vital to the management of acute respiratory distress syndrome, but it frequently leads to ventilator-induced lung injury (VILI). Understanding the pathophysiological processes involved in the development of VILI is an essential prerequisite for improving lung-protective ventilation strategies. The goal of this study was to relate the amount and nature of material accumulated in the airspaces to biomarkers of injury and the derecruitment behavior of the lung in VILI. Forty-nine BALB/c mice were mechanically ventilated with combinations of tidal volume and end-expiratory pressures to produce varying degrees of overdistension and atelectasis while lung function was periodically assessed...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28736174/effects-of-cigarette-smoke-extracts-on-cell-cycle-cell-migration-and-endocrine-activity-in-human-placental-cells
#10
Cho-Won Kim, Hae-Miru Lee, Kyuhong Lee, Bumseok Kim, Moo-Yeol Lee, Kyung-Chul Choi
Maternal smoking during pregnancy is known to be related to adverse pregnancy results associated with trophoblast proliferation and cell cycle progression. Moreover, many previous studies have shown that cigarette smoke is correlated with human chorionic gonadotropin beta (hCG-β) subunit produced from syncytiotrophoblasts during pregnancy. Thus, we further investigated whether cigarette smoke extract (CSE) affects the cell proliferation, migration and endocrine hormone activity of JEG-3 human placental cancer cells...
July 20, 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/28735516/dnmt1-regulates-il-6-and-tgf-%C3%AE-1-induced-epithelial-mesenchymal-transition-in-prostate-epithelial-cells
#11
Hui Xu, Yanbo Chen, Qi Chen, Huan Xu, Yanxia Wang, Jiao Yu, Juan Zhou, Zhong Wang, Bing Xu
Multiple factors have been considered to play a role in the development of benign prostatic hyperplasia (BPH), including chronic inflammation, hormones, and epithelial-mesenchymal transition (EMT). Inflammation is regarded as one of the potential inducers of EMT. However, the mechanisms, modulating pro-inflammatory factors (IL-6 and TGF-β1) induce EMT features, have not yet been studied in BPH. In this study, we investigated whether DNA methyltransferases1 (DNMT1) could regulate IL-6 and TGF-β1 induce EMT...
May 3, 2017: European Journal of Histochemistry: EJH
https://www.readbyqxmd.com/read/28734931/piperlongumine-inhibits-tgf-%C3%AE-induced-epithelial-to-mesenchymal-transition-by-modulating-the-expression-of-e-cadherin-snail1-and-twist1
#12
Min-Ju Park, Da-Eun Lee, Man Kyu Shim, Eun Hyang Jang, Jong Kil Lee, Seo Young Jeong, Jong-Ho Kim
Cancer is a life-threatening disease, and the occurrence of metastasis, which increases the lethality of primary tumors, is increasing. The epithelial-to-mesenchymal transition (EMT) is a biological process by which epithelial cells lose cell-cell adhesion properties and acquire mesenchymal properties, including motility and invasiveness. EMT is considered an early stage of metastasis; therefore, inhibiting EMT may be an effective anticancer therapy. In the present study, the antimetastatic effect of piperlongumine (PL) was assessed in human cancer cells...
July 19, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28734865/single-factors-alone-can-induce-mesenchymal-like-morphology-but-not-promote-full-emt-in-breast-cancer-cell-lines-with-different-hormone-statuses
#13
Maria K Tveitarås, Inga Reigstad, Lina Leiss, Rolf K Reed, Linda Stuhr
BACKGROUND: Epithelial to mesenchymal transition (EMT) is considered to be important for cancer invasion and metastasis. Tumour hypoxia, in addition to Transforming Growth Factor-β (TGF-β) and Notch, amongst others, have been suggested to be involved in EMT. We therefore investigated if hypoxia, TGF-β1 and the Notch ligand Jagged-1 alone induced morphological changes with corresponding EMT signatures in different epithelial breast cancer cell lines in vitro. Furthermore, we also studied whether or not TGF-β1, or Jagged-1 in combination with hypoxia added any effect on EMT...
July 19, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28733577/skin-renewal-activity-of-non-thermal-plasma-through-the-activation-of-%C3%AE-catenin-in-keratinocytes
#14
J H Choi, Y S Song, K Song, H J Lee, J W Hong, G C Kim
For recent years, devices that generate non-thermal plasma (NTP) have been introduced into the field of dermatology. Since NTP has demonstrated strong anti-pathogenic activity with safety of use, NTP was first applied to sterilize the skin surface to aid in the healing of various kinds of skin diseases. However, the effect of NTP on skin regeneration has not yet been fully explored. In this study, the effect of NTP on the growth of keratinocytes was tested using the HaCaT human keratinocyte cell line and HRM2 hairless mice...
July 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28733476/mir-30e-targets-glipr-2-to-modulate-diabetic-nephropathy-in-vitro-and-in-vivo-experiments
#15
Dong Zhao, Jinhua Jia, Hong Shao
The objectives of this study are to investigate the effect of miR-30e targeting GLIPR-2 on the pathological mechanism of DN. The renal tissues of db/db and db/m mice at different age of weeks were stained with PAS. qRT-PCR was applied to detect the expression of miR-30e and GLIPR-2, not only in the renal tissues of mice but also in the renal tubular epithelial cells (RTECs). By luciferase reporter gene assays, we found the 3'-UTR of the GLIPR-2 mRNA as a direct target of miR-30e. The RTECs cultured in high glucose were divided into blank control, NC, miR-30e mimics, miR-30e inhibitors, miR-30e inhibitor + si-GLIPR-2 and si-GLIPR-2 groups...
August 2017: Journal of Molecular Endocrinology
https://www.readbyqxmd.com/read/28732366/rassf6-downregulation-promotes-the-epithelial-mesenchymal-transition-and-predicts-poor-prognosis-in-colorectal-cancer
#16
Rui Zhou, Lin Qiu, Xiaolong Liu, Lijuan Ling, Ninglei Li, Kun Zhou, Jingbo Sun, Jian Yan, Canliang Tan, Xiaoping Huang, Luzhe Han, Liangchun Yin, Gang Xiao, Lixin Liu
Distant metastasis is the primary barrier for the successful treatment of patients with colorectal cancer, and thus, searching for new therapeutic targets by further exploring the molecular mechanisms of colorectal cancer metastasis is important. In this study, we investigated the biological and clinical significance of RASSF6 in colorectal cancer as well as the underlying molecular mechanisms. We found that low RASSF6 expression corresponds to a poor prognosis in colorectal cancer patients, and low RASSF6 expression is distinctly associated with tumour progression...
July 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/28732351/tropomyosin-isoform-tpm2-1-regulates-collective-and-amoeboid-cell-migration-and-cell-aggregation-in-breast-epithelial-cells
#17
HyeRim Shin, Dayoung Kim, David M Helfman
Metastasis dissemination is the result of various processes including cell migration and cell aggregation. These processes involve alterations in the expression and organization of cytoskeletal and adhesion proteins in tumor cells. Alterations in actin filaments and their binding partners are known to be key players in metastasis. Downregulation of specific tropomyosin (Tpm) isoforms is a common characteristic of transformed cells. In this study, we examined the role of Tpm2.1 in non-transformed MCF10A breast epithelial cells in cell migration and cell aggregation, because this isoform is downregulated in primary and metastatic breast cancer as well as various breast cancer cell lines...
July 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/28731185/snail-maintains-metastatic-potential-cancer-stem-like-properties-and-chemoresistance-in-mesenchymal-mouse-breast-cancer-tubo%C3%A2-p2j-cells
#18
Sun Young Ma, Jin-Hee Park, Hana Jung, Sung-Min Ha, Yeonye Kim, Dong Hyen Park, Deuk Hee Lee, Sooyong Lee, In-Ho Chu, So Young Jung, Il-Hwan Kim, Il-Whan Choi, Chang Soo Choi, Saegwang Park
Snail, a zinc-finger transcriptional repressor of E-cadherin expression, is one of the key inducers of epithelial-mesenchymal transition (EMT) in epithelial cancer. In breast cancer, EMT has been associated with malignancies, including metastasis, cancer stem-like properties, and resistance to chemotherapy and radiotherapy. In this study, we analysed the role of Snail in the highly metastatic mesenchymal TUBO‑P2J mouse breast cancer cells, by loss of function using short hairpin RNA. Though silencing Snail did not restore the E-cadherin expression or induce morphological changes, Snail silencing significantly ablated in vitro and in vivo metastatic potentials...
July 18, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28729638/inhibition-of-microrna-214-promotes-epithelial-mesenchymal-transition-process-and-induces-interstitial-cystitis-in-postmenopausal-women-by-upregulating-mfn2
#19
Jian-Wei Lv, Wei Wen, Chen Jiang, Qi-Bo Fu, Yin-Jun Gu, Ting-Ting Lv, Zhen-Dong Li, Wei Xue
Our study aims to investigate the roles that microRNA-214 (miR-214) plays in the epithelial mesenchymal transition (EMT) process and the development of interstitial cystitis (IC) in postmenopausal women by targeting Mitofusin 2 (Mfn2). IC bladder tissues and adjacent normal bladder tissues were collected from postmenopausal women. Immunohistochemistry (IHC) staining was conducted. The target relationship between miR-214 and Mfn2 was determined by a dual luciferase reporter gene assay. Adipose-derived mesenchymal stem cells (ADMSCs) were extracted from postmenopausal rats and assigned to the blank, mimics, miR-214 inhibitors, mimics negative control (NC), inhibitors NC, Mfn2 siRNA, miR-214 inhibitors and Mfn2 siRNA groups...
July 21, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/28728276/-the-role-of-hur-in-mediating-snail-expression-in-human-small-airway-epithelium-induced-by-cigarette-smoke-extract
#20
X M Gu, X G Wang, J Sun, N Wang, S J Jiang
Objective: To investigate the abundance of human antigen R (HuR) in small airway epithelial cells stimulated by cigarette smoke extract (CSE) as well as the role of HuR in mediating snail which is recognized as a key transcription factor in regulating epithelial-mesenchymal transition (EMT). Methods: Human small airway epithelial cells (HSAEpiC) cultured in vitro were exposed to cigarette smoke extract (CSE) to model COPD status. Real-time PCR and western blotting analysis were used in detecting HuR protein and mRNA expression in cells with CSE which were divided into 5 groups: a control group, a 1%-24 h group, a 3%-24 h group, a 1%-48 h group and a 3%-48 h group...
July 12, 2017: Chinese Journal of Tuberculosis and Respiratory Diseases
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