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https://www.readbyqxmd.com/read/29050269/long-non-coding-rna-carlo-5-promotes-tumor-progression-in-hepatocellular-carcinoma-via-suppressing-mir-200b-expression
#1
Chunqing Dou, Liyuan Sun, Xin Jin, Mingming Han, Bao Zhang, Xian Jiang, Jinyong Lv, Tao Li
Long non-coding RNAs (lncRNAs) play key roles in cancer initiation and progression. The aim was to investigate the biological functions and clinical significance of long non-coding RNA CARLo-5 in hepatocellular carcinoma (HCC). QRT-PCR was performed to investigate CARLo-5 expression in HCC tissues and cells. Kaplan-Meier curve and multivariate analysis validated the association between CARLo-5 expression and overall survival (OS) in HCC patients. Cell proliferation and invasion was performed by CCK8 cell proliferation, cell colony formation and transwell invasion assays...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29029452/the-h3k27me3-demethylase-kdm6a-is-suppressed-in-breast-cancer-stem-like-cells-and-enables-the-resolution-of-bivalency-during-the-mesenchymal-epithelial-transition
#2
Joseph H Taube, Nathalie Sphyris, Kelsey S Johnson, Keighley N Reisenauer, Taylor A Nesbit, Robiya Joseph, Geraldine V Vijay, Tapasree R Sarkar, Neeraja A Bhangre, Joon Jin Song, Jeffrey T Chang, Min Gyu Lee, Rama Soundararajan, Sendurai A Mani
The deposition of the activating H3K4me3 and repressive H3K27me3 histone modifications within the same promoter, forming a so-called bivalent domain, maintains gene expression in a repressed but transcription-ready state. We recently reported a significantly increased incidence of bivalency following an epithelial-mesenchymal transition (EMT), a process associated with the initiation of the metastatic cascade. The reverse process, known as the mesenchymal-epithelial transition (MET), is necessary for efficient colonization...
September 12, 2017: Oncotarget
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
#3
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/29027279/long-non-coding-rna-pvt1-emerging-biomarker-in-digestive-system-cancer
#4
REVIEW
Dan-Dan Zhou, Xiu-Fen Liu, Cheng-Wei Lu, Om Prakash Pant, Xiao-Dong Liu
The digestive system cancers are leading cause of cancer-related death worldwide, and have high risks of morbidity and mortality. More and more long non-coding RNAs (lncRNAs) have been studied to be abnormally expressed in cancers and play a key role in the process of digestive system tumour progression. Plasmacytoma variant translocation 1 (PVT1) seems fairly novel. Since 1984, PVT1 was identified to be an activator of MYC in mice. Its role in human tumour initiation and progression has long been a subject of interest...
October 12, 2017: Cell Proliferation
https://www.readbyqxmd.com/read/29021381/activation-of-fak-and-src-mediates-acquired-sorafenib-resistance-in-a549-human-lung-adenocarcinoma-xenografts
#5
Qingyu S Zhou, Xiaofang Guo, Riya Choksi
Despite encouraging clinical results with sorafenib monotherapy in patients with KRAS-mutant non-small cell lung cancer (NSCLC), the overall survival benefit of this drug is limited by the inevitable development of acquired resistance. The exact mechanism underlying acquired sorafenib resistance in KRAS-mutant NSCLC is unclear. In this study, the mechanism of acquired sorafenib resistance was explored using a biologically relevant xenograft model, which was established by using the A549 human lung adenocarcinoma cell line and an in-vivo derived sorafenib-resistant A549 subline (A549/SRFres)...
October 11, 2017: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/29017924/lncrna-cps1-it1-suppresses-emt-and-metastasis-of-colorectal-cancer-by-inhibiting-hypoxia-induced-autophagy-through-inactivation-of-hif-1%C3%AE
#6
Wei Zhang, Weitang Yuan, Junmin Song, Shijun Wang, Xiaoming Gu
OBJECTIVE: Hypoxia is a common phenomenon in solid tumor microenvironment. Thereby, the aim of this study was to investigate the molecular mechanisms of tumor metastasis and epithelial-mesenchymal transition (EMT) regulated by lncRNA CPS1 intronic transcript 1 (CPS1-IT1) under hypoxia in CRC. METHODS: Expression of lncRNA CPS1-IT1, hypoxia-inducible factor-1 alpha (HIF-1α) and autophagy related protein (LC3) were initially assessed in human CRC tissues and in a series of CRC cell lines...
October 7, 2017: Biochimie
https://www.readbyqxmd.com/read/28990521/the-use-of-naphthoquinones-and-furano-naphthoquinones-as-anti-invasive-agents
#7
Nga Yi Tsang, Wai I Chik, Lai Pan Sze, Siu Wai Tsang, Hongjie Zhang
Cancer is a leading cause of mortality in the world and metastasis is to blame. Invasion is the initial step of metastasis. Therapies targeting epithelial-mesenchymal transition (EMT), cancer stem cells (CSCs) and signal transducer and activator of transcription 3 (STAT3) signaling pathways can reduce stemness of cancer cells and thus inhibit cancer invasion. A large number of anti-cancer naphthoquinones (NQs) can target cancer invasion by acting on EMT, CSCs and STAT3 signaling. Furano-naphthoquinones (FNQs) belong to a class of NQ derivatives commonly characterized by a naphthoquinone fused with a furano ring...
October 6, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28981096/curcumin-reversed-chronic-tobacco-smoke-exposure-induced-urocystic-emt-and-acquisition-of-cancer-stem-cells-properties-via-wnt-%C3%AE-catenin
#8
Zhaofeng Liang, Ling Lu, Jiahui Mao, Xia Li, Hui Qian, Wenrong Xu
Tobacco smoke (TS) is the most important single risk factor for bladder cancer. Epithelial-mesenchymal transition (EMT) is a transdifferentiation process, involved in the initiation of TS-related cancer. Cancer stem cells (CSCs) have an essential role in the progression of many tumors including TS-related cancer. However, the molecular mechanisms of TS exposure induced urocystic EMT and acquisition of CSCs properties remains undefined. Wnt/β-catenin pathway is critical for EMT and the maintenance of CSCs. The aim of our present study was to investigate the role of Wnt/β-catenin pathway in chronic TS exposure induced urocystic EMT, stemness acquisition and the preventive effect of curcumin...
October 5, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28976208/pomegranate-extract-alters-breast-cancer-stem-cell-properties-in-association-with-inhibition-of-epithelial-to-mesenchymal-transition
#9
Sameera Nallanthighal, Kristine M Elmaliki, Ramune Reliene
Cancer stem cells (CSCs) have become an important target population in cancer therapy and prevention due to their ability to self-renew, initiate tumors, and resist therapy. We examined whether pomegranate extract (PE) alters characteristics of breast CSCs. Ability to grow as mammospheres is a hallmark of breast CSCs. PE inhibited mammosphere formation in two different cell lines, neoplastic mammary epithelial HMLER and breast cancer Hs578T. In addition, mammosphere-derived cells from PE treatment groups showed reduced mammosphere formation for at least two serial passages...
October 4, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/28970361/nfkb-mediated-invasiveness-in-cd133-pancreatic-tics-is-regulated-by-autocrine-and-paracrine-activation-of-il-1-signaling
#10
Alice Nomura, Vineet K Gupta, Patricia Dauer, Nikita S Sharma, Vikas Dudeja, Nipun Merchant, Ashok Saluja, Sulagna Banerjee
Tumor-initiating cells (TICs) have been implicated in pancreatic tumor initiation, progression, and metastasis. Among different markers that define this cell population within the tumor, the CD133+ cancer stem cell (CSC) population has reliably been described in these processes. CD133 expression has also been shown to functionally promote metastasis through NF-κB activation in this population but, the mechanism is unclear. In the current study, overexpression of CD133 increased expression and secretion of IL-1β (IL1B), which activates an autocrine signaling loop that upregulates NF-κB signaling, epithelial-mesenchymal transition (EMT), and cellular invasion...
September 28, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28969049/cbp501-suppresses-macrophage-induced-cancer-stem-cell-like-features-and-metastases
#11
Naoki Mine, Sayaka Yamamoto, Naoya Saito, Takuji Sato, Keiichi Sakakibara, Donald W Kufe, Daniel D VonHoff, Takumi Kawabe
CBP501 is an anti-cancer drug candidate which has been shown to increase cis-diamminedichloro-platinum (II) (CDDP) uptake into cancer cell through calmodulin (CaM) inhibition. However, the effects of CBP501 on the cells in the tumor microenvironment have not been addressed. Here, we investigated new aspects of the potential anti-tumor mechanism of action of CBP501 by examining its effects on the macrophages. Macrophages contribute to cancer-related inflammation and sequential production of cytokines such as IL-6 and TNF-α which cause various biological processes that promote tumor initiation, growth and metastasis (1)...
September 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28968696/sanguinarine-inhibits-pancreatic-cancer-stem-cell-characteristics-by-inducing-oxidative-stress-and-suppressing-sonic-hedgehog-gli-nanog-pathway
#12
Yiming Ma, Wei Yu, Anju Shrivastava, Farzad Alemi, Kamani Lankachandra, Rakesh K Srivastava, Sharmila Shankar
Sonic hedgehog pathway is highly activated in pancreatic cancer stem cells (CSC) which play crucial roles in cancer initiation, progression and metastasis. However, the molecular mechanisms by which sanguinarine regulates pancreatic CSC characteristics is not well understood. The objectives of this study were to examine the molecular mechanisms by which sanguinarine regulates pancreatic CSC characteristics. Sanguinarine inhibited cell proliferation and colony formation and induced apoptosis through oxidative damage...
September 5, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/28947416/survival-outcomes-in-cancer-patients-predicted-by-a-partial-emt-gene-expression-scoring-metric
#13
Jason T George, Mohit Kumar Jolly, Jackson Xu, Jason Somarelli, Herbert Levine
Metastasis is a significant contributor to morbidity and mortality for many cancer patients and remains a major obstacle for effective treatment. In many tissue types, metastasis is fueled by the epithelial-to-mesenchymal transition (EMT), a dynamic process characterized by phenotypic and morphologic changes concomitant with increased migratory and invasive potential. Recent experimental and theoretical evidence suggests that cells can be stably halted en route to EMT in a hybrid E/M phenotype. Cells in this phenotype tend to move collectively, forming clusters of circulating-tumor-cells that are key tumor-initiating agents...
September 25, 2017: Cancer Research
https://www.readbyqxmd.com/read/28942499/human-cancer-stem-cells-are-a-target-for-cancer-prevention-using-epigallocatechin-gallate
#14
REVIEW
Hirota Fujiki, Eisaburo Sueoka, Anchalee Rawangkan, Masami Suganuma
PURPOSE: Our previous experiments show that the main constituent of green-tea catechins, (-)-epigallocatechin gallate (EGCG), completely prevents tumor promotion on mouse skin initiated with 7,12-dimethylbenz(a)anthracene followed by okadaic acid and that EGCG and green tea extract prevent cancer development in a wide range of target organs in rodents. Therefore, we focused our attention on human cancer stem cells (CSCs) as targets of cancer prevention and treatment with EGCG. METHODS: The numerous reports concerning anticancer activity of EGCG against human CSCs enriched from cancer cell lines were gathered from a search of PubMed, and we hope our review of the literatures will provide a broad selection for the effects of EGCG on various human CSCs...
September 23, 2017: Journal of Cancer Research and Clinical Oncology
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
#15
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/28938477/growth-hormone-and-the-epithelial-to-mesenchymal-transition
#16
Alison L Brittain, Reetobrata Basu, Yanrong Qian, John J Kopchick
Context: Previous studies have implicated growth hormone (GH) in the progression of several cancers, including breast, colorectal and pancreatic. A mechanism by which GH may play this role in cancer is through the induction of the epithelial-to-mesenchymal transition (EMT). During the EMT process, epithelial cells lose their defining phenotypes causing loss of cellular adhesion and increased cell migration. This review aims to carefully summarize the previous two decades of research that points to GH as an initiator of EMT, in both cancerous and non-cancerous tissues...
August 4, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28934238/a-tool-to-automatically-analyze-electromagnetic-tracking-data-from-high-dose-rate-brachytherapy-of-breast-cancer-patients
#17
Th I Götz, G Lahmer, V Strnad, Ch Bert, B Hensel, A M Tomé, E W Lang
During High Dose Rate Brachytherapy (HDR-BT) the spatial position of the radiation source inside catheters implanted into a female breast is determined via electromagnetic tracking (EMT). Dwell positions and dwell times of the radiation source are established, relative to the patient's anatomy, from an initial X-ray-CT-image. During the irradiation treatment, catheter displacements can occur due to patient movements. The current study develops an automatic analysis tool of EMT data sets recorded with a solenoid sensor to assure concordance of the source movement with the treatment plan...
2017: PloS One
https://www.readbyqxmd.com/read/28900089/-high-content-sirna-screen-of-the-kinome-identifies-kinases-involved-in-git2-induced-mesenchymal-epithelial-transition
#18
M G Cao, J Xu, Q F Yang, Z P Guo, K B Zhang, X-B Li, S Q Wu, W Zhou
Epithelial-mesenchymal transition (EMT) and its reverse process mesenchymal-epithelial transition (MET) programs are involced in the metastatic process. More and more evidence confirms that EMT is vital for the initiation and dissemination of cancer cells whereas MET is critical for successful metastatic colonization of a secondary organ. The regulating mechanism of EMT mediated cancer progression and metastasis has been deeply investigated. However, what processes are dependent on MET in metastatic cascades remains unclear...
July 2017: Molekuliarnaia Biologiia
https://www.readbyqxmd.com/read/28893348/overexpression-of-glypican-5-gpc5-inhibits-prostate-cancer-cell-proliferation-and-invasion-via-suppressing-sp1-mediated-emt-and-activation-of-wnt-%C3%AE-catenin-signaling
#19
Yu Sun, Kai Xu, Miao He, Guilian Fan, Hongming Lu
Glypican 5 (GPC5) belongs to the family of heparan sulfate proteoglycans (HSPGs). It was initially known as a regulatorof growth factors and morphogens. Recently, there have been reports on its correlation with the tumorigenic process in the development of some cancers. However, little is known about its precise role in prostate cancer (PCa). In the present study, we explored the expression pattern and biological functions of GPC5 in PCa cells. Our results showed that GPC5 was lowly expressed in PCa cell lines...
September 6, 2017: Oncology Research
https://www.readbyqxmd.com/read/28872613/roles-of-long-noncoding-rnas-in-recurrence-and-metastasis-of-radiotherapy-resistant-cancer-stem-cells
#20
REVIEW
Hsiang-Cheng Chi, Chung-Ying Tsai, Ming-Ming Tsai, Chau-Ting Yeh, Kwang-Huei Lin
Radiotherapy is a well-established therapeutic regimen applied to treat at least half of all cancer patients worldwide. Radioresistance of cancers or failure to treat certain tumor types with radiation is associated with enhanced local invasion, metastasis and poor prognosis. Elucidation of the biological characteristics underlying radioresistance is therefore critical to ensure the development of effective strategies to resolve this issue, which remains an urgent medical problem. Cancer stem cells (CSCs) comprise a small population of tumor cells that constitute the origin of most cancer cell types...
September 5, 2017: International Journal of Molecular Sciences
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