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https://www.readbyqxmd.com/read/29772433/lncrna-sox21-as1-is-associated-with-progression-of-hepatocellular-carcinoma-and-predicts-prognosis-through-epigenetically-silencing-p21
#1
Congxin Wei, Hong Wang, Fei Xu, Zeng Liu, Runde Jiang
Long non-coding RNAs (lncRNAs) have been widely reported in various cancers due to their special molecular mechanisms. LncRNA SOX21-AS1 has been discovered to be a tumor facilitator in several types of human cancers. However, the expression pattern, clinical value and biological effects in hepatocellular carcinoma (HCC) are still unknown. In this study, we detected the high expression level of SOX21-AS1 in tumor tissues and cell lines through performing qRT-PCR analysis. The prognostic value of SOX21-AS1 was identified...
May 14, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29669339/upregulation-of-lncdq-is-associated-with-poor-prognosis-and-promotes-tumor-progression-via-epigenetic-regulation-of-the-emt-pathway-in-hcc
#2
Bing Zeng, Zewei Lin, Huilin Ye, Di Cheng, Guangtao Zhang, Jindu Zhou, Zhifeng Huang, Meng Wang, Canfeng Cai, Jun Zeng, Chaoming Tang, Jikui Liu
BACKGROUND/AIMS: Long noncoding RNAs (lncRNAs) are key regulators of cancer initiation and progression. In this study, we investigated the clinical value and functional role of LncRNA DQ786243 (LncDQ) in the pathogenesis of hepatocellular carcinoma (HCC). METHODS: To investigate the expression level of LncDQ in HCC, we performed quantitative real-time PCR using total RNA extracted from HCC tumor tissues and their matched non-neoplastic counterparts, as well as from the serum of HCC patients and healthy volunteers...
April 13, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29653269/microrna-26a-is-a-key-regulon-that-inhibits-progression-and-metastasis-of-c-myc-ezh2-double-high-advanced-hepatocellular-carcinoma
#3
Xiang Zhang, Xiao Zhang, Ting Wang, Lei Wang, Zhijun Tan, Wei Wei, Bo Yan, Jing Zhao, Kaichun Wu, Angang Yang, Rui Zhang, Lintao Jia
Overexpressed c-Myc and EZH2 usually mean high malignancy in cancers. Most of mortality from cancer is attributable to metastasis. MicroRNAs(miRNAs), like transcription factors, can regulate hundreds of genes. Here, we identify microRNA-26a (miR-26a) suppresses EZH2 and c-Myc by targeting EZH2 and CDK8 in Wnt pathway. MiR-26a is a well-known tumor-suppressive miRNA in multiple cancers, but how it is downregulated in hepatocellular carcinoma (HCC) is still unclear. Here, we disclose miR-26a is epigenetic silenced by a c-Myc-mediated PRC2-depandent way in HCC...
April 10, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29581297/inhibition-of-enhancer-of-zeste-homolog-2-ezh2-induces-natural-killer-cell-mediated-eradication-of-hepatocellular-carcinoma-cells
#4
Suresh Bugide, Michael R Green, Narendra Wajapeyee
Natural killer (NK) cell-mediated tumor cell eradication could inhibit tumor initiation and progression. However, the factors that regulate NK cell-mediated cancer cell eradication remain unclear. We determined that hepatocellular carcinoma (HCC) cells exhibit transcriptional down-regulation of NK group 2D (NKG2D) ligands and are largely resistant to NK cell-mediated eradication. Because the down-regulation of NKG2D ligands occurred at the transcriptional level, we tested 32 chemical inhibitors of epigenetic regulators for their ability to re-express NKG2D ligands and enhance HCC cell eradication by NK cells and found that Enhancer of zeste homolog 2 (EZH2) was a transcriptional repressor of NKG2D ligands...
April 10, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29574790/the-role-of-enhancer-of-zeste-homolog-2-from-viral-epigenetics-to-the-carcinogenesis-of-hepatocellular-carcinoma
#5
REVIEW
Luca Sanna, Irene Marchesi, Mariarosa A B Melone, Luigi Bagella
Nowadays, epigenetics covers a crucial role in different fields of science. The enhancer of zeste homolog 2 (EZH2), the catalytic subunit of the Polycomb Repressive Complex 2 (PRC2), is a big proponent of how epigenetic changes can affect the initiation and progression of several diseases. Through its catalytic activity, responsible for the tri-methylation of lysine 27 of the histone H3 (H3K27me3), EZH2 is a good target for both diagnosis and therapy of different pathologies. A large number of studies have demonstrated its crucial role in cancer initiation and progression...
March 25, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29498708/identification-and-characterizations-of-novel-selective-histone-methyltransferase-set7-inhibitors-by-scaffold-hopping-and-2d-molecular-fingerprint-based-similarity-search
#6
Hong Ding, Wen Chao Lu, Jun Chi Hu, Yu-Chih Liu, Chen Hua Zhang, Fu Lin Lian, Nai Xia Zhang, Fan Wang Meng, Cheng Luo, Kai Xian Chen
SET7, serving as the only histone methyltransferase that monomethylates 'Lys-4' of histone H3, has been proved to function as a key regulator in diverse biological processes, such as cell proliferation, transcriptional network regulation in embryonic stem cell, cell cycle control, protein stability, heart morphogenesis and development. What's more, SET7 is involved inthe pathogenesis of alopecia aerate, breast cancer, tumor and cancer progression, atherosclerosis in human carotid plaques, chronic renal diseases, diabetes, obesity, ovarian cancer, prostate cancer, hepatocellular carcinoma, and pulmonary fibrosis...
March 2, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29479874/association-between-ezh2-genetic-variants-and-hepatocellular-carcinoma-in-a-chinese-han-population
#7
Siyao Li, Shilong Sun, Shilong Yu, Zhuo Dong, Kuo Jiang, Linlin Xiang, Haiying Li
BACKGROUND: Hepatocellular carcinoma (HCC) is one of the most common malignancies worldwide. Studies have shown that EZH2, as the member of the Polycomb groups (PcGs) family, plays an important biological role in the occurrence and development of HCC. The association between the genetic variants of EZH2 and HCC is not yet fully established. METHODS: In this study, we used 175 patients with HCC and 209 healthy volunteers' blood samples of Chinese Han population to further analyze the relationship between EZH2 variants and HCC susceptibility...
January 1, 2018: Clinical Laboratory
https://www.readbyqxmd.com/read/29435024/expression-of-ezh2-is-associated-with-poor-outcome-in-colorectal-cancer
#8
Zhuanpeng Chen, Ping Yang, Wanglin Li, Feng He, Jianchang Wei, Tong Zhang, Junbin Zhong, Huacui Chen, Jie Cao
Enhancer of zeste homolog 2 (EZH2), the critical component of polycomb group protein family, has been demonstrated to be overexpressed in various types of human cancer, including hepatocellular carcinoma, breast, bladder and lung cancer. The mechanism of how EZH2 promotes oncogenesis has also been well studied. However, little is known about the role of EZH2 in colorectal cancer (CRC). The main purpose of the present study was to analyze the association between EZH2 expression and the clinicopathological features of CRC...
March 2018: Oncology Letters
https://www.readbyqxmd.com/read/29360538/ccrk-is-a-novel-signalling-hub-exploitable-in-cancer-immunotherapy
#9
REVIEW
Myth T Mok, Jingying Zhou, Wenshu Tang, Xuezhen Zeng, Antony W Oliver, Simon E Ward, Alfred S Cheng
Cyclin-dependent kinase 20 (CDK20), or more commonly referred to as cell cycle-related kinase (CCRK), is the latest member of CDK family with strong linkage to human cancers. Accumulating studies have reported the consistent overexpression of CCRK in cancers arising from brain, colon, liver, lung and ovary. Such aberrant up-regulation of CCRK is clinically significant as it correlates with tumor staging, shorter patient survival and poor prognosis. Intriguingly, the signalling molecules perturbed by CCRK are divergent and cancer-specific, including the cell cycle regulators CDK2, cyclin D1, cyclin E and RB in glioblastoma, ovarian carcinoma and colorectal cancer, and KEAP1-NRF2 cytoprotective pathway in lung cancer...
March 1, 2018: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/29316949/ezh2-promotes-hepatocellular-carcinoma-progression-through-modulating-mir-22-galectin-9-axis
#10
Shaofei Chen, Jiarui Pu, Jie Bai, Yuping Yin, Ke Wu, Jiliang Wang, Xiaoming Shuai, Jinbo Gao, Kaixiong Tao, Guobin Wang, Hang Li
BACKGROUND: Recent studies have shown that interferon-γ (IFN-γ)-induced galectin-9 expression in Kupffer cells plays an essential role in modulatingthe microenvironment of hepatitis-associated hepatocellular carcinoma (HCC). However, whether or not IFN-γ induces galectin-9 expression in HCC cells, its biological role and regulatory mechanism in HCC development and progression are poorly defined. METHODS: Quantitative PCR and western blotting analysis were used to detect galectin-9 and EZH2 levels in HCC cell lines stimulated with IFN-γ...
January 9, 2018: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/29312625/long-non-coding-rna-hoxa11-as-promotes-the-proliferation-hcc-cells-by-epigenetically-silencing-dusp5
#11
Bin Liu, Jing Li, Xiaoling Liu, Min Zheng, Ye Yang, Qian Lyu, Li Jin
Hepatocellular carcinoma has been identified as the fifth most common cancer in men and the ninth in women worldwide. Despite many efforts have been made in recent years, the overall survival rate of patients with hepatocellular carcinoma still remain unsatisfied. Therefore, exploring the mechanisms underlying the progression of hepatocellular carcinoma is essential for developing novel treatments to improve patient prognosis. HOXA11-AS, transcribed from the opposite strand of the protein-coding gene HOXA11, has been identified to be associated with the malignant characteristics of several cancers...
December 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/29291409/long-noncoding-rna-pcat-1-acts-as-an-oncogene-in-osteosarcoma-by-reducing-p21-levels
#12
Jiang Huang, Gaorong Deng, Tianmi Liu, Wenzhao Chen, Yang Zhou
Long non-coding RNA (lncRNA) is emerging as a critical regulator in multiple cancers. Recently, lncRNA PCAT-1 was found to be up-regulated in prostate cancer and hepatocellular carcinoma, exerting oncogenic effects. However, the biological function and regulatory mechanism of PCAT-1 remain unclear in osteosarcoma (OS). In this study, we reported that PCAT-1 expression was also upregulated in OS tissues, and its overexpression was remarkably associated with tumor size, Enneking stage, tumor node metastasis (TNM) stage and metastasis in patients with OS...
January 22, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29152663/microrna%C3%A2-137-has-a-suppressive-role-in-liver-cancer-via-targeting-ezh2
#13
Shichang Cui, Yanlei Sun, Yang Liu, Chengbiao Liu, Jinbao Wang, Guang Hao, Qidong Sun
A variety of microRNAs (miRs) have been demonstrated to be associated with the development and malignant progression of human cancer; however, the regulatory mechanism of miR‑137 underlying hepatocellular carcinoma (HCC) growth and metastasis still remains to be fully revealed. In the present study, reverse transcription‑quantitative polymerase chain reaction and western blot were used to examine mRNA and protein expression. MTT assay, wound healing assay and Transwell assay were performed to determine cell proliferation, migration and invasion...
December 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29137412/long-non-coding-rna-snhg15-inhibits-p15-and-klf2-expression-to-promote-pancreatic-cancer-proliferation-through-ezh2-mediated-h3k27me3
#14
Zhonghua Ma, Hesuyuan Huang, Jirong Wang, Yan Zhou, Fuxing Pu, Qinghong Zhao, Peng Peng, Bingqing Hui, Hao Ji, Keming Wang
Long non-coding RNA (lncRNA) is emerging as an critical regulator in multiple cancers, including pancreatic cancer (PC). Recently, lncRNA SNHG15 was found to be up-regulated in gastric cancer and hepatocellular carcinoma, exerting oncogenic effects. Nevertheless, the biological function and regulatory mechanism of SNHG15 remain unclear in pancreatic cancer (PC). In this study, we reported that SNHG15 expression was also upregulated in PC tissues, and its overexpression was remarkably associated with tumor size, tumor node metastasis (TNM) stage and lymph node metastasis in patients with PC...
October 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/29113254/epigenetic-analysis-of-fhl1-tumor-suppressor-gene-in-human-liver-cancer
#15
Jun Wang, Fang Huang, Jian Huang, Jindan Kong, Shenglan Liu, Jun Jin
Liver cancer is one of the most common types of cancer among human malignancies. Four and a half LIM domains 1 (FHL1), as a tumor suppressor gene, is frequently downregulated in multiple types of human cancer. However, the role and specific mechanisms of FHL1 as a tumor suppressor in liver cancer are poorly understood. The present study aimed to investigate the role and associated mechanisms of FHL1 in human liver cancer. The level of FHL1 mRNA in hepatocellular carcinoma (HCC) tissue specimens and cell lines derived from the human liver was determined using reverse transcription polymerase chain reaction and western blot analysis...
November 2017: Oncology Letters
https://www.readbyqxmd.com/read/29097358/lncrna-miat-promoted-proliferation-and-invasion-of-hcc-cells-via-sponging-mir-214
#16
Xinli Huang, Yun Gao, Jianjie Qin, Sen Lu
BACKGROUND: The aberrant expression of lncRNAs has been involved in various human tumors including hepatocellular carcinoma (HCC). Our study aimed to investigate the potential molecular mechanism of lncRNA-MIAT in HCC. METHODS: The expression of MIAT and miR-214 in HCC tissues and cells was examined by qRT-PCR, and the levels of EZH2 and β-catenin were detected by western blot assay. The immunoprecipitation analysis was used to detect the level of H3/H4 histone acetylation...
November 2, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/29050269/long-non-coding-rna-carlo-5-promotes-tumor-progression-in-hepatocellular-carcinoma-via-suppressing-mir-200b-expression
#17
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/28981099/long-non-coding-rna-snhg20-promotes-non-small-cell-lung-cancer-cell-proliferation-and-migration-by-epigenetically-silencing-of-p21-expression
#18
Zhenyao Chen, Xin Chen, Ping Chen, Shanxun Yu, Fengqi Nie, Binbin Lu, Te Zhang, Yue Zhou, Qinnan Chen, Chenchen Wei, Wei Wang, Zhaoxia Wang
Mounting evidence demonstrates that long non-coding RNAs (lncRNAs) are novel transcripts governing multiple biological processes, and their dysregulation is involved in the development and progression of multiple types of cancers. Small Nucleolar RNA Host Gene 20 (SNHG20) is a 2183 bp lncRNA, and its overexpression predicts poor prognosis in colorectal cancer and hepatocellular carcinoma. However, the clinical relevance of SNHG20 and its molecular mechanisms affecting cancer cell phenotype have not been documented...
October 5, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28979810/enhancing-chemotherapy-sensitivity-by-targeting-pcg-via-the-atm-p53-pathway
#19
Shu-Bin Gao, Kang-Li Li, Huan Qiu, Ling-Yu Zhu, Chang-Bao Pan, Yue Zhao, Shu-Hua Wei, Shu Shi, Guang-Hui Jin, Li-Xiang Xue
Histone modification and chromatin remodeling are important events in response to DNA damage, and Polycomb group (PcG) proteins, catalyzing H3K27 methylation, are involved. However, the biological function and mechanism of PcG in DNA damage are not fully understood. Additionally, downstream effectors in hepatocellular carcinoma (HCC) remain unclear. The present study investigated the biological and mechanistic roles of PcG in the DNA damage response induced by chemotherapeutic drugs in HCC. It was found that chemotherapy drugs, such as epirubicin (EPB) and mitomycin C (MMC), effectively blocked expression of PcG in p53-wild-type HepG2 cells but not in PLC/PRF5 and Hep3B cells with p53 mutation or deletion...
2017: American Journal of Cancer Research
https://www.readbyqxmd.com/read/28939663/hepatoma-intrinsic-ccrk-inhibition-diminishes-myeloid-derived-suppressor-cell-immunosuppression-and-enhances-immune-checkpoint-blockade-efficacy
#20
Jingying Zhou, Man Liu, Hanyong Sun, Yu Feng, Liangliang Xu, Anthony W H Chan, Joanna H Tong, John Wong, Charing Ching Ning Chong, Paul B S Lai, Hector Kwong-Sang Wang, Shun-Wa Tsang, Tyler Goodwin, Rihe Liu, Leaf Huang, Zhiwei Chen, Joseph Jy Sung, King Lau Chow, Ka Fai To, Alfred Sze-Lok Cheng
OBJECTIVE: Myeloid-derived suppressor cells (MDSCs) contribute to tumour immunosuppressive microenvironment and immune-checkpoint blockade resistance. Emerging evidence highlights the pivotal functions of cyclin-dependent kinases (CDKs) in tumour immunity. Here we elucidated the role of tumour-intrinsic CDK20, or cell cycle-related kinase (CCRK) on immunosuppression in hepatocellular carcinoma (HCC). DESIGN: Immunosuppression of MDSCs derived from patients with HCC and relationship with CCRK were determined by flow cytometry, expression analyses and co-culture systems...
September 22, 2017: Gut
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