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https://www.readbyqxmd.com/read/29778661/epigenetic-dysregulation-of-zeb1-is-involved-in-lmo2-promoted-t-cell-acute-lymphoblastic-leukaemia-leukaemogenesis
#1
Chao Wu, Jianjun Li, Chenchen Tian, Wen Shi, Huimin Jiang, Zhen Zhang, Hang Wang, Quansheng Zhang, Wei Sun, Peiqing Sun, Rong Xiang, Shuang Yang
T-cell acute lymphoblastic leukaemia (T-ALL) is a hematological malignancy caused by the accumulation of genomic lesions that affect the development of T-cells. ZEB1, a member of zinc finger-homeodomain family transcription factor, exhibits crucial function in promoting T-cell differentiation and potentially acts as a tumor suppressor in T-ALL. However, the molecular mechanism by which ZEB1 regulates T-ALL leukaemogenesis remains obscure. Here, we showed that oncogenic LIM only 2 (LMO2) could recruit Sap18 and HDAC1 to assemble an epigenetic regulatory complex, thus inducing histone deacetylation in ZEB1 promoter and chromatin remodeling to achieve transcriptional repression...
May 17, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29778540/the-clinicopathological-and-prognostic-value-of-long-non-coding-rna-zeb1-as1-in-solid-tumors-a-meta-analysis
#2
REVIEW
Chaojie Liang, Jing Liu, Hua Ge, Yingchen Xu, Guangming Li, Jixiang Wu
BACKGROUND AND AIM: Studies have reported that Zinc finger E-box binding homeobox 1 antisense 1 (ZEB1-AS1) is overexpressed in many malignant tumors. However, the sample size in those studies was limited, so the clinicopathological and prognostic value of ZEB1-AS1 in solid tumors remains undetermined, Accordingly, the aim of this meta-analysis was to evaluate the relationship between the expression of lncRNA ZEB1-AS1 and clinicopathological characteristics and prognosis in patients with solid tumors...
May 17, 2018: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29778425/lncrna-hotair-contributes-to-the-malignancy-of-hepatocellular-carcinoma-by-enhancing-epithelial-mesenchymal-transition-via-sponging-mir-23b-3p-from-zeb1
#3
Tao Yang, Xiaojun He, An Chen, Kai Tan, Xilin Du
Hepatocellular carcinoma (HCC) is the fifth most common cancer around the world, along with high mortality and metastasis rate. Our present study aimed to explore the role of LncRNA HOTAIR in the progression of HCC. Our data showed that HOTAIR was overexpressed in HCC tissues and cell lines (Huh7, Hep3B, HepG2, MHCC97H). Overexpressed HOTAIR promoted invasion and migration of HCC cells (Huh7) by enhancing epithelial-mesenchymal transition (EMT). Besides that, miR-23b-3p was predicted to be a target of HOTAIR and decreased expression of miR-23b-3p was observed in HCC tissues and cell lines...
May 17, 2018: Gene
https://www.readbyqxmd.com/read/29771414/extracellular-vesicles-promote-esophageal-cancer-progression-by-delivering-lnczeb1-as1-between-cells
#4
Y-G Zhang, M-W Zhou, L Bai, R-Y Han, K Lv, Z Wang
OBJECTIVE: To explore the expression of extracellular vesicle-derived lncZEB1-AS1 in esophageal cancer and its role in esophageal cancer progression. PATIENTS AND METHODS: The extracellular vesicles (EVs) from esophageal cancer patients (n = 26) and normal subjects (n = 26) were isolated by differential centrifugation. The expression of lncZEB1-AS1 in EVs was detected by Real-time PCR (polymerase chain reaction). The clinical data of normal subjects and patients were analyzed...
May 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29771411/long-non-coding-rna-zeb1-as1-is-associated-with-poor-prognosis-in-gastric-cancer-and-promotes-cancer-cell-metastasis
#5
X-J Liu, S-L Li, J-S Li, H Lu, L-L Yin, W-F Zheng, W-C Wang
OBJECTIVE: To investigate the expression of long non-coding RNA zinc-finger E-box binding homeobox 1-AS1 (lncRNA ZEB1-AS1) in gastric cancer cells and tissues, to study its effect on the gastric cancer cell metastasis capacity, and analyze its clinical significance. PATIENTS AND METHODS: The relative expression level of lncRNA ZEB1-AS1 in gastric cancer cells was detected via quantitative reverse transcription polymerase chain reaction (qRT-PCR). Transwell assay was used to detect the effects of lncRNA ZEB1-AS1 on the invasion and metastasis capacities of gastric cancer cells...
May 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29760516/microrna-and-transcriptome-analysis-in-periocular-sebaceous-gland-carcinoma
#6
John C Bladen, Jun Wang, Ajanthah Sangaralingam, Mariya Moosajee, Caroline Fitchett, Claude Chelala, Michele Beaconsfield, Edel A O'Toole, Michael P Philpott, Daniel G Ezra
Sebaceous gland carcinoma (SGC) is a rare, but life-threatening condition with a predilection for the periocular region. Eyelid SGC can be broadly categorised into two subtypes, namely either nodular or pagetoid with the latter being more aggressive and requiring radical excision to save life. We have identified key altered microRNAs (miRNA) involved in SGC shared by both subtypes, hsa-miR-34a-5p and hsa-miR-16-5p. However, their gene targets BCL2 and MYC were differentially expressed with both overexpressed in pagetoid but unchanged in nodular suggesting different modes of action of these two miRNAs on BCL/MYC expression...
May 14, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29755127/a-novel-long-non-coding-rna-linc-znf469-3-promotes-lung-metastasis-through-mir-574-5p-zeb1-axis-in-triple-negative-breast-cancer
#7
Po-Shun Wang, Cheng-Han Chou, Cheng-Han Lin, Yun-Chin Yao, Hui-Chuan Cheng, Hao-Yi Li, Yu-Chung Chuang, Chia-Ning Yang, Luo-Ping Ger, Yu-Chia Chen, Forn-Chia Lin, Tang-Long Shen, Michael Hsiao, Pei-Jung Lu
Triple-negative breast cancer (TNBC) patients usually lead to poor prognosis and survival because of metastasis. The major sites for TNBC metastasis include the lungs, brain, liver, and bone. Long non-coding RNAs (lncRNAs) are non-protein-coding transcripts longer than 200 nucleotides and have been reported as important regulators in BC metastasis. However, the underlying mechanisms for lncRNAs regulating TNBC metastasis are not fully understood. Here we found that linc-ZNF469-3 was highly expressed in lung-metastatic LM2-4175 TNBC cells and overexpression of linc-ZNF469-3 enhanced invasion ability and stemness properties in vitro and lung metastasis in vivo...
May 14, 2018: Oncogene
https://www.readbyqxmd.com/read/29754422/zeb1-mediated-vasculogenic-mimicry-formation-associates-with-epithelial-mesenchymal-transition-and-cancer-stem-cell-phenotypes-in-prostate-cancer
#8
Hua Wang, Bin Huang, Bai Mou Li, Kai Yuan Cao, Chen Qiang Mo, Shuang Jian Jiang, Jin Cheng Pan, Zong Ren Wang, Huan Yi Lin, Dao Hu Wang, Shao Peng Qiu
The zinc finger E-box-binding homeobox 1 (ZEB1) induced the epithelial-mesenchymal transition (EMT) and altered ZEB1 expression could lead to aggressive and cancer stem cell (CSC) phenotypes in various cancers. Tissue specimens from 96 prostate cancer patients were collected for immunohistochemistry and CD34/periodic acid-Schiff double staining. Prostate cancer cells were subjected to ZEB1 knockdown or overexpression and assessment of the effects on vasculogenic mimicry formation in vitro and in vivo. The underlying molecular events of ZEB1-induced vasculogenic mimicry formation in prostate cancer were then explored...
May 12, 2018: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29753810/dendrosomal-nanocurcumin-and-exogenous-p53-can-act-synergistically-to-elicit-anticancer-effects-on-breast-cancer-cells
#9
Narges Baghi, Babak Bakhshinejad, Reihaneh Keshavarz, Sadegh Babashah, Majid Sadeghizadeh
Triple-negative breast cancer (TNBC) constitutes an important histological subtype of breast cancer with a highly metastatic phenotype. The aim of the current study was to investigate the possible synergism between dendrosomal nanocurcumin (DNC) and exogenously delivered p53 in producing anticancer effects on a TNBC cell line. MTT assay was exploited to determine the viability of MDA-MB-231 cells against DNC and measure the impact of p53 overexpresssion on DNC-related cytotoxicity. Annexin-V/PI staining followed by flow cytometry and wound healing assay were used to evaluate the effects of DNC and exogenous p53, alone and in combination, on apoptosis induction and migratory capacity of MDA-MB-231 cells, respectively...
May 10, 2018: Gene
https://www.readbyqxmd.com/read/29751044/transcriptional-repressor-kaiso-promotes-epithelial-to-mesenchymal-transition-and-metastasis-in-prostate-cancer-through-direct-regulation-of-mir-200c
#10
Abisola Abisoye-Ogunniyan, Huxian Lin, Anghesom Ghebremedhin, Ahmad Salam, Balasubramanyam Karanam, Shaniece Theodore, Jacqueline Jones-Trich, Melissa Davis, William Grizzle, Honghe Wang, Clayton Yates
The loss of miR-200 family, through DNA methylation, results in cancer cells undergoing an epithelial to mesenchymal transition (EMT), and metastasis. In this study, we established that the transcriptional repressor Kaiso directly binds methylated regions of the miR-200 family, and this is reversed with 5-aza treatment. sh-Kaiso PC-3 cells display increased miR-200-a/b/c, miR-141, and miR-429 expression, with miR-200c demonstrating the most significant increase. Interestingly, overexpression of EGFR or treatment with EGF decreases miR-200c expression and this is reversed after treatment with EGFR specific kinase inhibitor PD153035...
May 8, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29748568/carf-enrichment-promotes-epithelial-mesenchymal-transition-via-wnt-%C3%AE-catenin-signaling-its-clinical-relevance-and-potential-as-a-therapeutic-target
#11
Rajkumar S Kalra, Anupama Chaudhary, A-Rum Yoon, Priyanshu Bhargava, Amr Omar, Sukant Garg, Chae-Ok Yun, Sunil C Kaul, Renu Wadhwa
CARF (Collaborator of ARF)/CDKN2AIP was discovered as a novel ARF-binding protein. It has been established as an essential cell survival, p53-, and cell proliferation-regulatory protein. Although a moderate upregulation of CARF caused growth arrest and senescence, its excessively enriched levels were shown to facilitate aggressive proliferation and malignant transformation of cancer cells. Here, we examined the relevance of CARF levels in clinical tumors and found its amplification (both at gene and transcript levels) in a variety of invasive and metastatic malignancies...
May 11, 2018: Oncogenesis
https://www.readbyqxmd.com/read/29747153/molecular-characterization-of-colorectal-signet-ring-cell-carcinoma-using-whole-exome-and-rna-sequencing
#12
Jae-Yong Nam, Bo Young Oh, Hye Kyung Hong, Joon Seol Bae, Tae Won Kim, Sang Yun Ha, Donghyun Park, Woo Yong Lee, Hee Cheol Kim, Seong Hyeon Yun, Yoon Ah Park, Je-Gun Joung, Woong-Yang Park, Yong Beom Cho
BACKGROUND: Signet-ring cell carcinoma (SRCC) is a very rare subtype of colorectal adenocarcinoma (COAD) with a poor clinical prognosis. Although understanding key mechanisms of tumor progression in SRCCs is critical for precise treatment, a comprehensive view of genomic alterations is lacking. MATERIALS AND METHODS: We performed whole-exome sequencing of tumors and matched normal blood as well as RNA sequencing of tumors and matched normal colonic tissues from five patients with SRCC...
May 7, 2018: Translational Oncology
https://www.readbyqxmd.com/read/29744893/genome-wide-binding-of-transcription-factor-zeb1-in-triple-negative-breast-cancer-cells
#13
Varun Maturi, Stefan Enroth, Carl-Henrik Heldin, Aristidis Moustakas
Zinc finger E-box binding homeobox 1 (ZEB1) is a transcriptional regulator involved in embryonic development and cancer progression. ZEB1 induces epithelial-mesenchymal transition (EMT). Triple-negative human breast cancers express high ZEB1 mRNA levels and exhibit features of EMT. In the human triple-negative breast cancer cell model Hs578T, ZEB1 associates with almost 2,000 genes, representing many cellular functions, including cell polarity regulation (DLG2 and FAT3). By introducing a CRISPR-Cas9-mediated 30 bp deletion into the ZEB1 second exon, we observed reduced migratory and anchorage-independent growth capacity of these tumor cells...
May 10, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29741670/cadmium-exposure-inhibits-branching-morphogenesis-and-causes-alterations-consistent-with-hif-1%C3%AE-inhibition-in-human-primary-breast-organoids
#14
Sabrina A Rocco, Lada Koneva, Lauren Y M Middleton, Tasha Thong, Sumeet Solanki, Sarah Karram, Kowit Nambunmee, Craig Harris, Laura S Rozek, Maureen A Sartor, Yatrik M Shah, Justin A Colacino
Developmental cadmium exposure in vivo disrupts mammary gland differentiation, while exposure of breast cell lines to cadmium causes invasion consistent with the epithelial-mesenchymal transition (EMT). The effects of cadmium on normal human breast stem cells have not been measured. Here, we quantified the effects of cadmium exposure on reduction mammoplasty patient-derived breast stem cell proliferation and differentiation. Using the mammosphere assay and organoid formation in 3D hydrogels, we tested two physiologically relevant doses of cadmium, 0...
May 7, 2018: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29738694/downregulation-of-linc00894-002-contributes-to-tamoxifen-resistance-by-enhancing-the-tgf-%C3%AE-signaling-pathway
#15
Xiulei Zhang, Meiting Wang, Huihui Sun, Tao Zhu, Xiangting Wang
Tamoxifen is a widely used personalized medicine for estrogen receptor (ER)-positive breast cancer, but approximately 30% of patients receiving the treatment relapse due to tamoxifen resistance (TamR). Recently, several reports have linked lncRNAs to cancer drug resistance. However, the role of lncRNAs in TamR is unclear. To identify TamR-related lncRNAs, we first used a bioinformatic approach to predict whether they have connection with known TamR-associated genes by starBase v2.0 and divided them into two groups...
May 2018: Biochemistry. Biokhimii︠a︡
https://www.readbyqxmd.com/read/29736210/mir-101-inhibits-the-proliferation-and-metastasis-of-lung-cancer-by-targeting-zinc-finger-e-box-binding-homeobox-1
#16
Le Han, Wenjuan Chen, Yanmin Xia, Yangrong Song, Zheng Zhao, Hao Cheng, Tao Jiang
MicroRNAs (miRNAs) are involved in the development and progression of lung cancer. MicroRNA-101 (miR-101) displays crucial properties in non-small cell lung cancer (NSCLC) by negatively regulating cell proliferation and invasion, but the underlying molecular mechanisms remain largely unknown. In this study, we found that miR-101 was underexpressed while zinc finger E-box binding homeobox 1 (ZEB1) was highly upregulated in NSCLC tissues and cells. The downregulation of miR-101 was positively associated with lymph node metastasis and poor prognosis of NSCLC patients...
2018: American Journal of Translational Research
https://www.readbyqxmd.com/read/29732001/prognostic-impact-of-programmed-cell-death-ligand-1-pd-l1-expression-and-its-association-with-epithelial-mesenchymal-transition-in-extrahepatic-cholangiocarcinoma
#17
Takashi Ueno, Takahiro Tsuchikawa, Kanako C Hatanaka, Yutaka Hatanaka, Tomoko Mitsuhashi, Yoshitsugu Nakanishi, Takehiro Noji, Toru Nakamura, Keisuke Okamura, Yoshihiro Matsuno, Satoshi Hirano
Extrahepatic cholangiocarcinoma (eCCA) has a poor prognosis. Although the possibility of immunotherapy has been studied, immune checkpoint molecules such as programmed death ligand 1 (PD-L1) in eCCA are not well understood. Epithelial-mesenchymal transition (EMT) has recently been shown to regulate PD-L1 expression. Our aims were to assess the clinicopathological significance of tumor-infiltrating lymphocytes (TILs) and tumor PD-L1 expression in eCCA and to compare these immune responses with EMT marker expression...
April 13, 2018: Oncotarget
https://www.readbyqxmd.com/read/29721073/ovol2-links-stemness-and-metastasis-via-fine-tuning-epithelial-mesenchymal-transition-in-nasopharyngeal-carcinoma
#18
Xue-Kang Qi, Hui-Qiong Han, Hao-Jiong Zhang, Miao Xu, Lili Li, Lin Chen, Tong Xiang, Qi-Sheng Feng, Tiebang Kang, Chao-Nan Qian, Mu-Yan Cai, Qian Tao, Yi-Xin Zeng, Lin Feng
Rationale: Metastasis is the leading cause of disease-related death among patients with nasopharyngeal carcinoma (NPC). Mounting evidence suggest that epithelial-mesenchymal transition (EMT) is crucial for cancer cells to acquire metastatic ability. In this study, we aim to clarify the extent to which EMT is involved in various cancer properties and identify novel markers for predicting the prognosis of NPC patients. Methods: Two cellular models derived from the same NPC cell line with distinct metastasis ability were used for microarray analysis to identify key transcriptional factors that drive metastasis...
2018: Theranostics
https://www.readbyqxmd.com/read/29719293/pik3r3-promotes-metastasis-of-pancreatic-cancer-via-zeb1-induced-epithelial-mesenchymal-transition
#19
Yun-Peng Peng, Yi Zhu, Ling-Di Yin, Ji-Shu Wei, Xin-Chun Liu, Xiao-Le Zhu, Yi Miao
BACKGROUND/AIMS: PIK3R3 is a regulatory subunit of phosphatidylinositol 3-kinase (PI3K) which plays an essential role in the metastasis of several types of cancer. However, whether PIK3R3 can promote the metastasis of pancreatic cancer (PC) is still unclear. In this study, we characterized the role of PIK3R3 in metastasis of PC and underlying potential mechanisms. METHODS: RT-PCR, western blot, immunofluorescence (IF) and immunohistochemistry (IHC) were applied to investigate the expression of genes and proteins in different cell lines and tissues...
April 28, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29715584/duox2-mediated-production-of-reactive-oxygen-species-induces-epithelial-mesenchymal-transition-in-5-fluorouracil-resistant-human-colon-cancer-cells
#20
Kyoung Ah Kang, Yea Seong Ryu, Mei Jing Piao, Kristina Shilnikova, Hee Kyoung Kang, Joo Mi Yi, Mathias Boulanger, Rosa Paolillo, Guillaume Bossis, Sung Young Yoon, Seong Bong Kim, Jin Won Hyun
The therapeutic benefits offered by 5-fluorouracil (5-FU) are limited because of the acquisition of drug resistance, the main cause of treatment failure and metastasis. The ability of the cancer cells to undergo epithelial-mesenchymal transition (EMT) contributes significantly to cancer metastatic potential and chemo-resistance. However, the underlying molecular mechanisms of 5-FU-resistance have remained elusive. Here, we show that reactive oxygen species (ROS), produced by dual oxidase 2 (DUOX2), promote 5-FU-induced EMT...
April 23, 2018: Redox Biology
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