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https://www.readbyqxmd.com/read/28530155/an-oncolytic-adenovirus-encoding-decorin-and-gm-csf-inhibits-tumor-growth-in-a-colorectal-tumor-model-by-targeting-pro-tumorigenic-signals-and-via-immune-activation
#1
Zhao Liu, Yuefeng Yang, Xiaoyan Zhang, Hao Wang, Weidong Xu, Hua Wang, FengJun Xiao, Zhigang Bai, Hongwei Yao, Xuemei Ma, Lan Jin, Chu-Tse Wu, Prem Seth, Zhongtao Zhang, Lisheng Wang
In advanced and metastatic stages of colorectal cancer (CRC), reduced sensitivity to conventional strategies is still a major obstacle to successful treatments. Decorin is an important regulator in the development and progression of various cancers. To examine if CRC patients have altered decorin levels, expression of decorin and its target genes, Met and vascular endothelial growth factor A (VEGFA) were analyzed in their tumors. Compared to normal tissues, decorin expression was reduced in CRC patients' tumors, while, there were increased Met and VEGFA levels...
May 20, 2017: Human Gene Therapy
https://www.readbyqxmd.com/read/28529599/snail-homolog-1-is-involved-in-epithelial-mesenchymal-transition-like-processes-in-human-glioblastoma-cells
#2
Caspar D Kühnöl, Carina Würfel, Martin S Staege, Christof Kramm
Despite advancements in neurosurgery, chemotherapy and radiation therapy, the outcome of patients with glioblastoma remains poor. The migration of tumor cells from the primary tumor site with subsequent invasion of these cells into the surrounding normal brain tissue is frequently responsible for relapse and treatment failure. The present study hypothesized that snail homolog 1 (SNAI1), a factor critically involved in the epithelial-mesenchymal transition (EMT) of human carcinoma cells, may also contribute to an invasive EMT-like phenotype of glioblastoma cells...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28528497/microrna-30a-5p-mir-30a-regulates-cell-motility-and-emt-by-directly-targeting-oncogenic-tm4sf1-in-colorectal-cancer
#3
Y R Park, S L Kim, M R Lee, S Y Seo, J H Lee, S H Kim, I H Kim, S O Lee, S T Lee, Sang Wook Kim
PURPOSE: Colorectal cancer (CRC) is one of the leading causes of cancer death worldwide, and many oncogenes and tumor suppressor genes are involved in CRC. MicroRNAs (miRNAs) are small non-coding RNAs that can negatively regulate gene expression. Previous studies have revealed that miRNAs regulate the development and progression of many cancers. In this study, we investigated the role of microRNA-30a-5p (miR-30a) in CRC and its unknown mechanisms. METHODS: qRT-PCR was used to detect miR-30a and TM4SF1 mRNA expression in CRC specimens and cell lines...
May 20, 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/28524160/stroma-regulated-hmga2-is-an-independent-prognostic-marker-in-pdac-and-aac
#4
Carina Strell, Karin Jessica Norberg, Artur Mezheyeuski, Jonas Schnittert, Praneeth R Kuninty, Carlos Fernández Moro, Janna Paulsson, Nicolai Aagaard Schultz, Dan Calatayud, Johannes Matthias Löhr, Oliver Frings, Caroline Sophie Verbeke, Rainer Lothar Heuchel, Jai Prakash, Julia Sidenius Johansen, Arne Östman
BACKGROUND: The HMGA2 protein has experimentally been linked to EMT and cancer stemness. Recent studies imply that tumour-stroma interactions regulate these features and thereby contribute to tumour aggressiveness. METHODS: We analysed 253 cases of pancreatic ductal adenocarcinoma (PDAC) and 155 cases of ampullary adenocarcinoma (AAC) for HMGA2 expression by IHC. The data were correlated with stroma abundance and supplemented by experimental studies. RESULTS: HMGA2 acts as an independent prognostic marker associated with a significantly shorter overall survival in both tumour types...
May 18, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28521303/emt-circulating-tumor-cells-detected-by-cell-surface-vimentin-are-associated-with-prostate-cancer-progression
#5
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/28514740/differential-expression-of-circulating-biomarkers-of-tumor-phenotype-and-outcomes-in-previously-treated-non-small-cell-lung-cancer-patients-receiving-erlotinib-vs-cytotoxic-chemotherapy
#6
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)...
April 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28504716/vegfa-links-self-renewal-and-metastasis-by-inducing-sox2-to-repress-mir-452-driving-slug
#7
M Kim, K Jang, P Miller, M Picon-Ruiz, T M Yeasky, D El-Ashry, J M Slingerland
Cancer stem cells (CSC) appear to have increased metastatic potential, but mechanisms underlying this are poorly defined. Here we show that VEGFA induction of Sox2 promotes EMT and tumor metastasis. In breast lines and primary cancer culture, VEGFA rapidly upregulates SOX2 expression, leading to SNAI2 induction, EMT, increased invasion and metastasis. We show Sox2 downregulates miR-452, which acts as a novel metastasis suppressor to directly target the SNAI2 3'-untranslated region (3'-UTR). VEGFA stimulates Sox2- and Slug-dependent cell invasion...
May 15, 2017: Oncogene
https://www.readbyqxmd.com/read/28501572/quercetin-inhibited-epithelial-mesenchymal-transition-in-diabetic-rats-high-glucose-cultured-lens-and-sra01-04-cells-through-transforming-growth-factor-%C3%AE-2-phosphoinositide-3-kinase-akt-pathway
#8
Lei Du, Meng Hao, Chengcheng Li, Wenya Wu, Wenwen Wang, Zhongxuan Ma, Tingting Yang, Nan Zhang, Adelusi Temitope Isaac, Xia Zhu, Ying Sun, Qian Lu, Xiaoxing Yin
Diabetic cataract (DC), an identified life-threatening secondary complication of diabetes mellitus, has proven to be a dilemma because of its multifactorial caused and progression. An increasing number of studies have shown that in addition to the maillard reaction, enhanced polyol pathway, and oxidative insults, epithelial mesenchymal transition (EMT) is related to the prevalence of DC. Quercetin, a classic flavonoid with multiple pharmacological effects has been reported to possess therapeutic efficacy in the management and treatment of this disease...
May 10, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28500745/advanced-oxidation-protein-products-induce-hepatocyte-epithelial-mesenchymal-transition-via-a-ros-dependent-tgf-%C3%AE-smad-signaling-pathway
#9
Shibo Sun, Fang Xie, Qifan Zhang, Zhonglin Cui, Xinsheng Cheng, Feng Zhong, Kun He, Jie Zhou
Epithelial-mesenchymal transition (EMT) occurs during the progression of liver fibrosis in response to chronic liver injury. However, the molecular mechanism underlying the regulation of hepatocyte EMT remains unclear. The aim of this study was to determine whether advanced oxidation protein products (AOPP) had an effect on hepatocyte EMT. The human L02 hepatocyte cell line and hepatocytes from normal Sprague-Dawley rats were challenged with AOPP treatment in both in vitro and in vivo studies. The expression of cell and molecular markers of EMT in L02 hepatocytes were studied using Western blotting, and quantitative reverse transcription-polymerase chain reaction (qRT-PCR) assays...
May 13, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28498365/inhibition-of-twist1-mediated-invasion-by-chk2-promotes-premature-senescence-in-p53-defective-cancer-cells
#10
Debasis Nayak, Anmol Kumar, Souneek Chakraborty, Reyaz Ur Rasool, Hina Amin, Archana Katoch, Veena Gopinath, Vidushi Mahajan, Mahesh K Zilla, Bilal Rah, Sumit G Gandhi, Asif Ali, Lekha Dinesh Kumar, Anindya Goswami
Twist1, a basic helix-loop-helix transcription factor is implicated as a key mediator of epithelial-mesenchymal transition (EMT) and metastatic dissemination in p53-deficient cancer cells. On the other hand, checkpoint kinase 2 (Chk2), a major cell cycle regulatory protein provides a barrier to tumorigenesis due to DNA damage response by preserving genomic stability of the cells. Here we demonstrate that Chk2 induction proficiently abrogates invasion, cell scattering and invadopodia formation ability of p53-mutated invasive cells by suppressing Twist1, indicating Chk2 confers vital role in metastasis prevention...
May 12, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28498363/a-novel-microrna-regulator-of-prostate-cancer-epithelial-mesenchymal-transition
#11
Nathan Bucay, Divya Bhagirath, Kirandeep Sekhon, Thao Yang, Shinichiro Fukuhara, Shahana Majid, Varahram Shahryari, ZLaura Tabatabai, Kirsten L Greene, Yutaka Hashimoto, Marisa Shiina, Soichiro Yamamura, Yuichiro Tanaka, Guoren Deng, Rajvir Dahiya, Sharanjot Saini
The most frequent alteration in the prostate oncogenome is loss of chromosome (chr) 8p21 that has been associated with loss of NKX3.1 homeobox gene. Chr8p21 deletions increase significantly with tumor grade and are associated with poor prognosis in prostate cancer (PCa), suggesting critical involvement of this region in tumor progression. Recent studies suggest that apart from NKX3.1, this region harbors alternative tumor suppressors that are yet undefined. We proposed a novel, paradigm shifting hypothesis that this locus is associated with a miRNA gene cluster-miR-3622a/b- that plays a crucial suppressive role in PCa...
May 12, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28489585/pou2f1-over-expression-correlates-with-poor-prognoses-and-promotes-cell-growth-and-epithelial-to-mesenchymal-transition-in-hepatocellular-carcinoma
#12
Yonghao Zhong, Hongyang Huang, Min Chen, Jinzhou Huang, Qingxia Wu, Guang-Rong Yan, De Chen
Despite recent efforts to understand activities of POU domain class 2 transcription factor 1 (POU2F1), little is known about the roles of POU2F1 in hepatocellular carcinoma (HCC) tumorigenesis and its correlation with any clinicopathological feature of HCC. In this study, we found that POU2F1 was significantly up-regulated in HCC specimens compared with adjacent non-cancerous liver specimens. The high POU2F1 protein expression level positively correlated with large tumor size, high histological grade, tumor metastasis and advanced clinical stage, and HCC patients with high POU2F1 levels exhibited poor prognoses...
April 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/28488579/evolutionary-cancer-favoring-engineered-vaccinia-virus-for-metastatic-hepatocellular-carcinoma
#13
So Young Yoo, Su-Nam Jeong, Dae Hwan Kang, Jeong Heo
Engineered vaccinia virus-based therapy shows promising results in patients with advanced hepatocellular carcinoma, although a strategic virus design for the metastatic liver and the study of its efficacy in treating the cancer has not been well assessed. In this paper, we proposed a simple and strategic virus design for targeting metastatic hepatocellular carcinoma. We developed an evolutionary cancer-favoring engineered vaccinia virus (CVV, which is produced by repeated selective replication in cancerous tissues and then deleting viral thymidine kinase genes) and investigated its therapeutic effects on metastatic liver cancer...
April 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/28481874/a-positive-crosstalk-between-cxcr4-and-cxcr2-promotes-gastric-cancer-metastasis
#14
Z Xiang, Z-J Zhou, G-K Xia, X-H Zhang, Z-W Wei, J-T Zhu, J Yu, W Chen, Y He, R E Schwarz, R A Brekken, N Awasthi, C-H Zhang
The molecular mechanism underlying gastric cancer (GC) invasion and metastasis is still poorly understood. In this study, we tried to investigate the roles of CXCR4 and CXCR2 signalings in gastric cancer metastasis. A highly invasive gastric cancer cell model was established. Chemokines receptors were profiled to search for the accountable ones. Then the underlying molecular mechanism was investigated using both in vitro and in vivo techniques, and the clinical relevance of CXCR4 and CXCR2 expression was studied in gastric cancer samples...
May 8, 2017: Oncogene
https://www.readbyqxmd.com/read/28468237/hypoxia-mediates-differential-response-to-anti-egfr-therapy-in-hnscc-cells
#15
Emilia Wiechec, Katharina Tiefenböck Hansson, Lisa Alexandersson, Jan-Ingvar Jönsson, Karin Roberg
Despite advances in the head and neck squamous cell carcinoma (HNSCC) treatment modalities, drug resistance and cancer recurrence are often reported. Hypoxia signaling through hypoxia-inducible factor 1 (HIF-1) promotes angiogenesis and metastasis by inducing epithelial-mesenchymal-transition (EMT). The aim of this study was to evaluate the impact of hypoxia on response to therapy as well as EMT and expression of stem cell markers in HNSCC cells. Five HNSCC cell lines (UT-SCC-2, UT-SCC-14, LK0412, LK0827, and LK0923) were selected for this study...
April 29, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28460616/epithelial-to-mesenchymal-transition-a-mediator-of-sorafenib-resistance-in-advanced-hepatocellular-carcinoma
#16
Nabiel Mir, Aparna Jayachandran, Bijay Dhungel, Ritu Shrestha, Jason C Steel
Hepatocellular carcinoma (HCC) is one of the most lethal cancers worldwide and its incidence is steadily rising. Currently, sorafenib remains the only approved standard treatment for patients with advanced HCC, as it has proven to increase survival in these patients. However, clinical and preclinical observations indicate that sorafenib treatment may have limited efficacy due to tumor progression from the rapid development of acquired resistance. Elucidation of the underlying mechanisms of evasive resistance to sorafenib is a major challenge in HCC research...
April 26, 2017: Current Cancer Drug Targets
https://www.readbyqxmd.com/read/28455956/targeting-axl-overcomes-resistance-to-docetaxel-therapy-in-advanced-prostate-cancer
#17
Jian-Zhong Lin, Zeng-Jun Wang, Wei De, Ming Zheng, Wei-Zhang Xu, Hong-Fei Wu, Alex Armstrong, Jia-Geng Zhu
Resistance to docetaxel is a major clinical problem in advanced prostate cancer. The overexpression of AXL receptor tyrosine kinase (AXL) has been correlated with chemotherapeutic drug resistance. However, the role of AXL expression in docetaxel resistance in prostate cancer is yet unclear. In this study, we demonstrate that AXL is overexpressed and activated independent of Gas6 in docetaxel-resistant prostate cancer cells (PC3-DR and DU145-DR). Moreover, we show that forced overexpression of AXL in PC3 and DU145 cells is sufficient to induce resistance to docetaxel in these cell lines...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28454389/notch-signaling-is-important-for-epithelial-mesenchymal-transition-induced-by-low-concentrations-of-doxorubicin-in-osteosarcoma-cell-lines
#18
Jian Yang, Weichun Guo, Lu Wang, Ling Yu, Hongjun Mei, Shuo Fang, Anyuan Chen, Yang Liu, Kezhou Xia, Gaiwei Liu
Osteosarcoma is an aggressive pediatric tumor affecting growing bones that typically occurs in adolescents and young adults. Although advances in treatment have been made in recent years, a high proportion of patients relapse due to metastases, which are frequently resistant to chemotherapy and pose a significant threat to long-term survival. Previous studies have demonstrated that the epithelial-mesenchymal transition (EMT) is associated with cancer occurrence and metastasis, and our previous study demonstrated the occurrence of EMT in osteosarcoma...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28440503/cd24-expression-is-a-marker-for-predicting-clinical-outcome-and-regulates-the-epithelial-mesenchymal-transition-in-ovarian-cancer-via-both-the-akt-and-erk-pathways
#19
Kiyoko Nakamura, Yoshito Terai, Akiko Tanabe, Yoshihiro J Ono, Masami Hayashi, Kazuya Maeda, Satoe Fujiwara, Keisuke Ashihara, Michihiko Nakamura, Yoshimichi Tanaka, Tomohito Tanaka, Satoshi Tsunetoh, Hiroshi Sasaki, Masahide Ohmichi
The degree of peritoneal dissemination and chemotherapy-resistant tumors is related to the prognosis in patients with advanced-stage ovarian cancer. The epithelial-mesenchymal-transition (EMT) is a multifaceted pathological program that endows cancer cells with the ability to invade and disseminate. CD24 is frequently overexpressed in various human cancers and is correlated with a poor prognosis. We herein examined the functions of CD24 in human ovarian cancer cell lines and evaluated how it contributes to the molecular mechanism underlying the regeneration of cancer stem-like cells (CSCs) through the EMT mechanism in ovarian carcinoma...
April 19, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28440473/cxcr6-predicts-poor-prognosis-in-gastric-cancer-and-promotes-tumor-metastasis-through-epithelial-mesenchymal-transition
#20
Jie-Jie Jin, Fa-Xiang Dai, Zi-Wen Long, Hong Cai, Xiao-Wen Liu, Ye Zhou, Qi Hong, Qiong-Zhu Dong, Ya-Nong Wang, Hua Huang
Chemokines and their receptors have been confirmed to be involved in several types of cancer. However, little is known concerning the role of CXCL16 and its receptor CXCR6 in gastric cancer (GC) progression and metastasis. In the present study, expression of CXCL16 and CXCR6 in GC tumor and peritumoral tissues was detected by immunohistochemistry (IHC) in a cohort of 352 GC patients who underwent gastrectomy, and the correlation between CXCL16/CXCR6 expression and clinicopathological characteristics was further analyzed...
April 25, 2017: Oncology Reports
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