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https://www.readbyqxmd.com/read/28537879/increased-expression-of-calponin-2-is-a-positive-prognostic-factor-in-pancreatic-ductal-adenocarcinoma
#1
Zhaoyan Qiu, Yi Chu, Bing Xu, Qian Wang, Mingzuo Jiang, Xiaowei Li, Gang Wang, Pengfei Yu, Guoxiao Liu, Hua Wang, Huijie Kang, Jiayu Liu, Yu Zhang, Jian-Ping Jin, Kaichun Wu, Jie Liang
Calponin 2 plays an important role in regulating actin cytoskeleton, which is critical for cell division and migration. Previous studies have demonstrated that calponin 2 inhibits prostate cancer cell proliferation and metastasis. However, the role of calponin 2 in pancreatic tumor growth, metastasis and patient survival remains unclear. Here, we demonstrate that the level of calponin 2 is a positive prognostic factor for patients with pancreatic ductal adenocarcinoma (PDAC). Patients with high calponin 2 expression in the tumor presented less lymph node metastasis and longer survival...
May 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28537766/pirfenidone-induces-g1-arrest-in-human-tenon-s-fibroblasts-in-vitro-involving-akt-and-mapk-signaling-pathways
#2
Xiujuan Guo, Yangfan Yang, Liling Liu, Xiaoan Liu, Jiangang Xu, Kaili Wu, Minbin Yu
PURPOSE: To investigate the underlying mechanism by which pirfenidone blocks the transition from the G1 to S phase in primary human Tenon's fibroblasts. METHODS: Primary human Tenon's fibroblasts were characterized by immunocytofluorescence staining with vimentin, fibroblast surface protein, and cytokeratin. After treating Tenon's fibroblasts with pirfenidone under proliferation conditions (10% fetal bovine serum), cell proliferation was measured using a WST-1 assay...
May 24, 2017: Journal of Ocular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28535259/altered-organisation-of-the-intermediate-filament-cytoskeleton-and-relocalisation-of-proteostasis-modulators-in-cells-lacking-the-ataxia-protein-sacsin
#3
Emma J Duncan, Roxanne Larivière, Teisha Y Bradshaw, Fabiana Longo, Nicolas Sgarioto, Matthew J Hayes, Lisa E L Romano, Suran Nethisinghe, Paola Giunti, Michaela B Bruntraeger, Heather D Durham, Bernard Brais, Francesca Maltecca, Benoit J Gentil, J Paul Chapple
Autosomal Recessive Spastic Ataxia of Charlevoix-Saguenay (ARSACS) is caused by mutations in the gene SACS, encoding the 520 kDa protein sacsin. Although sacsin's physiological role is largely unknown, its sequence domains suggest a molecular chaperone or protein quality control function. Consequences of its loss include neurofilament network abnormalities, specifically accumulation and bundling of perikaryal and dendritic neurofilaments.To investigate if loss of sacsin affects intermediate filaments more generally, the distribution of vimentin was analysed in ARSACS patient fibroblasts and in cells where sacsin expression was reduced...
May 23, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28534983/trim59-facilitates-the-proliferation-of-colorectal-cancer-and-promotes-metastasis-via-the-pi3k-akt-pathway
#4
Ye Sun, Bing Ji, Yifei Feng, Yue Zhang, Dongjian Ji, Chunyan Zhu, Sen Wang, Chuan Zhang, Dongsheng Zhang, Yueming Sun
Tripartite motif-containing 59 (TRIM59) belongs to the tripartite motif (TRIM) protein family and is upregulated in various malignancies. However, its expression in colorectal cancer (CRC) is still unknown. In the present study, we examined the expression and biological function of TRIM59 in CRC. We analyzed CRC tissues and cells by quantitative real-time polymerase chain reaction. Kaplan-Meier survival analysis was used to evaluate the prognostic significance of TRIM59 in CRC patients. Furthermore, we investigated the role of TRIM59 in CRC growth and metastasis...
May 22, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28533359/selective-regulation-of-notch-ligands-during-angiogenesis-is-mediated-by-vimentin
#5
Daniel Antfolk, Marika Sjöqvist, Fang Cheng, Kimmo Isoniemi, Camille L Duran, Adolfo Rivero-Muller, Christian Antila, Rasmus Niemi, Sebastian Landor, Carlijn V C Bouten, Kayla J Bayless, John E Eriksson, Cecilia M Sahlgren
Notch signaling is a key regulator of angiogenesis, in which sprouting is regulated by an equilibrium between inhibitory Dll4-Notch signaling and promoting Jagged-Notch signaling. Whereas Fringe proteins modify Notch receptors and strengthen their activation by Dll4 ligands, other mechanisms balancing Jagged and Dll4 signaling are yet to be described. The intermediate filament protein vimentin, which has been previously shown to affect vascular integrity and regenerative signaling, is here shown to regulate ligand-specific Notch signaling...
May 22, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28531945/spp1-analyzed-by-bioinformatics-methods-promotes-the-metastasis-in-colorectal-cancer-by-activating-emt-pathway
#6
Chunjie Xu, Longci Sun, Chunhui Jiang, Hong Zhou, Lei Gu, Ye Liu, Qing Xu
OBJECTIVE: Tumor metastasis is still a great challenge for the prognosis of colorectal cancer (CRC). Although secreted phosphoprotein 1 (SPP1) over-expression is confirmed to associate with invasion, metastasis of CRC, the underlying mechanism by which modulates the CRC metastasis is still not fully explained. METHOD: GDS4382 was obtained from GEO database and differentially expressed genes (DEGs) were analyzed by bioinformatics methods 55 paired samples of CRC and adjacent non-cancerous tissues were collected to detect the expression of SPP1 by q-PCR and western blot...
May 17, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28529604/dicer1-regulates-endometrial-carcinoma-invasion-via-histone-acetylation-and-methylation
#7
Bilan Li, Wen Lu, Junjie Qu, Yongli Zhang, Xiaoping Wan
Endometrial carcinoma (EC) is one of the most common gynecologic malignancy, but molecular mechanisms of the development and progression of EC remain unclear. Here we showed that the expression of DICER1 was negatively associated with the level of histone methylation, histone acetylation and PRC2 components SUZ12 and EZH2 in EC cells. In addition, knockdown of DICER1 significantly downregulated miR-200b and let-7i, which may then regulate their targets SUZ12 and EZH2. Furthermore, knockdown of DICER1 remarkably suppressed the expression of epithelial cell marker E-cadherin, induced the expression of mesenchymal cell marker Vimentin, and promoted the invasion of EC cells...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28529592/unique-insight-into-microenvironmental-changes-in-colorectal-cancer-ex-vivo-assessment-of-matrix-metalloprotease-mediated-molecular-changes-in-human-colorectal-tumor-tissue-and-corresponding-non-neoplastic-adjacent-tissue
#8
Nicholas Willumsen, Cecilie L Bager, Anne-Christine Bay-Jensen, Stephanie N Kehlet, Henrik Harling, Diana J Leeming, Morten A Karsdal, Lars N Jorgensen
Matrix metalloprotease (MMP)-mediated tissue remodeling is one of the malignant changes driving colorectal cancer. Measurement of altered MMP expression/activity is not sufficient to fully understand the effect of MMP-mediated tissue remodeling. Biomarkers are required that specifically reflect the dynamic processes of the MMP-mediated degradation of signature proteins from colorectal tissue. The aim of the present study was to profile and characterize the release of MMP-degraded type III collagen (C3M) and citrullinated and MMP-degraded vimentin (VICM) from tumor tissue and corresponding non-neoplastic adjacent tissue (NAT) in a human colorectal cancer ex vivo model...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28529586/immunohistochemical-analysis-of-nanog-expression-and-epithelial-mesenchymal-transition-in-pulmonary-sarcomatoid-carcinoma
#9
Takeshi Tamaki, Toshiki Shimizu, Maiko Niki, Michiomi Shimizu, Tohru Nishizawa, Shosaku Nomura
Pulmonary sarcomatoid carcinomas (PSCs) are defined as a group of poorly differentiated non-small cell lung cancers that demonstrate sarcoma-like differentiation. The mechanism of mesenchymal differentiation in PSC is epithelial-mesenchymal transition (EMT). The expression of homeobox protein NANOG (NANOG), which regulates the pluripotency of embryonic stem cells, is associated with the EMT process. Therefore, the present study aimed to assess the expression level of NANOG and the status of the EMT process in PSC...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28529572/recurrent-female-adnexal-tumor-of-probable-wolffian-origin-treated-with-debulking-surgery-imatinib-and-paclitaxel-carboplatin-combination-chemotherapy-a-case-report
#10
Akihiko Wakayama, Hirofumi Matsumoto, Hajime Aoyama, Masanao Saio, Ayumi Kumagai, Takuma Ooyama, Morihiko Inamine, Yoichi Aoki
In view of the small number of recurrent and metastatic cases of female adnexal tumors of probable Wolffian origin (FATWO), there is a distinct lack of evidence to support recommendations regarding treatment. In the present study, a 37-year-old female was diagnosed with a left adnexal tumor and underwent a left salpingo-oophorectomy (SO). The tumor was found to arise from the left tubal fimbria and extend to the posterior leaf of the broad ligament. Pathological examination identified a number of solid, tubular and cystic architectures, with areas of hyalinization, hemorrhage and necrosis...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28527916/cadmium-stimulates-metastasis-associated-phenotype-in-triple-negative-breast-cancer-cells-through-integrin-and-%C3%AE-catenin-signaling
#11
Zhengxi Wei, Zahir A Shaikh
Cadmium (Cd) is a carcinogenic heavy metal which is implicated in breast cancer development. While the mechanisms of Cd-induced breast cancer initiation and promotion have been studied, the molecular processes involved in breast cancer progression remain to be investigated. The purpose of the present study was to evaluate the influence of Cd on metastasis-associated phenotypes, such as cell adhesion, migration, and invasion in triple-negative breast cancer cells. Treatment of MDA-MB-231 cells with 1μM Cd increased cell spreading and cell migration...
May 17, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28526992/epithelial-mesenchymal-transition-emt-in-metastatic-breast-cancer-in-omani-women
#12
Ritu Lakhtakia, Adil Aljarrah, Muhammad Furrukh, Shyam S Ganguly
Breast cancer (BC) in Oman affects younger women and has a more aggressive course. Clinical and biological variables like age, pregnancy, tumor size, type, grade, receptor expression and proliferation predict disease aggression but there is no direct predictor of metastasis except lymphovascular invasion. Epithelial-mesenchymal transition (EMT) is characterized by epithelial cells losing epithelial and acquiring mesenchymal morpho-immunophenotypic characteristics. In tumors, EMT-like transitions may signify a metastatic phenotype and have features in common with cancer stem cells (CSC) which show resistance to chemotherapy...
May 19, 2017: Cancer Microenvironment: Official Journal of the International Cancer Microenvironment Society
https://www.readbyqxmd.com/read/28526577/changes-in-tumor-cell-heterogeneity-after-chemotherapy-treatment-in-a-xenograft-model-of-glioblastoma
#13
Alessandra M Welker, Brian D Jaros, Min An, Christine E Beattie
Glioblastoma (GBM) is a highly aggressive brain cancer with limited treatments and poor patient survival. GBM tumors are heterogeneous containing a complex mixture of dividing cells, differentiated cells, and cancer stem cells. It is unclear, however, how these different cell populations contribute to tumor growth or whether they exhibit differential responses to chemotherapy. Here we set out to address these questions using a zebrafish xenograft transplant model (Welker et al., 2016). We found that a small population of differentiated vimentin-positive tumor cells, but a majority of Sox2-positive putative cancer stem cells, were dividing during tumor growth...
May 17, 2017: Neuroscience
https://www.readbyqxmd.com/read/28526320/mercury-exposure-induces-cytoskeleton-disruption-and-loss-of-renal-function-through-epigenetic-modulation-of-mmp9-expression
#14
Hafizurrahman Khan, Radha Dutt Singh, Ratnakar Tiwari, Siddhartha Gangopadhyay, Somendu Kumar Roy, Dhirendra Singh, Vikas Srivastava
Mercury is one of the major heavy metal pollutants occurring in elemental, inorganic and organic forms. Due to ban on most inorganic mercury containing products, human exposure to mercury generally occurs as methylmercury (MeHg) by consumption of contaminated fish and other sea food. Animal and epidemiological studies indicate that MeHg affects neural and renal function. Our study is focused on nephrotoxic potential of MeHg. In this study, we have shown for the first time how MeHg could epigenetically modulate matrix metalloproteinase 9(MMP9) to promote nephrotoxicity using an animal model of sub chronic MeHg exposure...
May 16, 2017: Toxicology
https://www.readbyqxmd.com/read/28525341/morphological-analysis-of-testicles-in-cats-with-disorders-of-sex-development
#15
S Dzimira, W Nizanski, J A Madej
Disorders of sex development (DSD) are rare in cats. They can be caused by chromosomal aberrations, gene mutations or other undefined factors. The aim of the present study was to compare the histological structure and immunohistochemical reactivity of testes in cats with DSD and in healthy cats. The research material consisted of the gonads of four cats - phenotypic males with an incorrect structure of the reproductive system. The control group consisted of the testes of four healthy cats - routinely castrated phenotypical males...
March 28, 2017: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/28522946/parthenolide-promotes-apoptotic-cell-death-and-inhibits-the-migration-and-invasion-of-sw620-cells
#16
Yu Chuan Liu, Se Lim Kim, Young Ran Park, Soo-Teik Lee, Sang Wook Kim
BACKGROUND/AIMS: Parthenolide (PT), a principle component derived from feverfew (Tanacetum parthenium), is a promising anticancer agent and has been shown to promote apoptotic cell death in various cancer cells. In this study, we focused on its functional role in apoptosis, migration, and invasion of human colorectal cancer (CRC) cells. METHODS: SW620 cells were employed as representative human CRC cells. We performed the MTT assay and cell cycle analysis to measure apoptotic cell death...
April 2017: Intestinal Research
https://www.readbyqxmd.com/read/28521634/chorionic-histiocytic-hyperplasia-is-associated-with-chronic-inflammatory-lesions-in-the-placenta
#17
Philip J Katzman, Leon A Metlay, Loralee A McMahon, Li LiQiong, Bin Zhang
Background Chorionic histiocytic hyperplasia (CHH) is a cellular proliferation at the base of the chorion that was identified by the authors in examining placentas for chronic chorioamnionitis (CC). This study is a retrospective review of cases diagnosed with CHH, describing its incidence alone and with associated lesions, and the immunophenotype of lesional cells. Design In this retrospective study, a laboratory information system search over a 34-month period using the key phrase "chorionic stromal" was performed...
June 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28521486/fibronectin-induces-epithelial-mesenchymal-transition-in-human-breast-cancer-mcf-7-cells-via-activation-of-calpain
#18
Cheng-Lin Li, Dan Yang, Xin Cao, Fan Wang, Duan-Yang Hong, Jing Wang, Xiang-Chun Shen, Yan Chen
Fibronectin (FN) is a primary component of the mammary mesenchymal compartment and undergoes dramatic changes during breast cancer development. Increased FN expression is associated with an invasive and metastatic breast cancer phenotype. The present study demonstrated that FN causes an epithelial-mesenchymal transition (EMT)-like morphological change in MCF-7 breast cancer cells. FN stimulation caused the downregulation of epithelial markers E-cadherin and tight junction protein ZO-1, and the upregulation of mesenchymal markers N-cadherin and vimentin...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28521303/emt-circulating-tumor-cells-detected-by-cell-surface-vimentin-are-associated-with-prostate-cancer-progression
#19
Arun Satelli, Izhar Batth, Zachary Brownlee, Abhishek Mitra, Shouhao Zhou, Hyangsoon Noh, Christina R Rojas, Heming Li, Qing H Meng, Shulin Li
Recent advances in the field of circulating tumor cells (CTC) have shown promise in this liquid biopsy-based prognosis of patient outcome. However, not all of the circulating cells are tumor cells, as evidenced by a lack of tumor-specific markers. The current FDA standard for capturing CTCs (CellSearch) relies on an epithelial marker and cells captured via CellSearch cannot be considered to have undergone EMT. Therefore, it is difficult to ascertain the presence and relevance of any mesenchymal or EMT-like CTCs...
May 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28518134/asic1-and-asic3-contribute-to-acidity-induced-emt-of-pancreatic-cancer-through-activating-ca-2-rhoa-pathway
#20
Shuai Zhu, Hai-Yun Zhou, Shi-Chang Deng, Shi-Jiang Deng, Chi He, Xiang Li, Jing-Yuan Chen, Yan Jin, Zhuang-Li Hu, Fang Wang, Chun-You Wang, Gang Zhao
Extracellular acid can have important effects on cancer cells. Acid-sensing ion channels (ASICs), which emerged as key receptors for extracellular acidic pH, are differently expressed during various diseases and have been implicated in underlying pathogenesis. This study reports that ASIC1 and ASIC3 are mainly expressed on membrane of pancreatic cancer cells and upregulated in pancreatic cancer tissues. ASIC1 and ASIC3 are responsible for an acidity-induced inward current, which is required for elevation of intracellular Ca(2+) concentration ([Ca(2+)]i)...
May 18, 2017: Cell Death & Disease
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