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Molecular Cancer

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https://www.readbyqxmd.com/read/29041978/linc-ror-promotes-mapk-erk-signaling-and-confers-estrogen-independent-growth-of-breast-cancer
#1
Wan-Xin Peng, Jian-Guo Huang, Liu Yang, Ai-Hua Gong, Yin-Yuan Mo
BACKGROUND: The conversion from estrogen-dependent to estrogen-independent state of ER+ breast cancer cells is the key step to promote resistance to endocrine therapies. Although the crucial role of MAPK/ERK signaling pathway in estrogen-independent breast cancer cell growth is well established, the underlying mechanism is not fully understood. METHODS: In this study, we profiled lncRNA expression against a focused group of lncRNAs selected from lncRNA database...
October 17, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/29041935/a-long-non-coding-rna-hottip-expression-is-associated-with-disease-progression-and-predicts-outcome-in-small-cell-lung-cancer-patients
#2
Yanqin Sun, Yuanyuan Zhou, Yifeng Bai, Qiongyao Wang, Jiarong Bao, Yingshan Luo, Ying Guo, Linlang Guo
BACKGROUND: Despite progress in treatment of small cell lung cancer (SCLC), the biology of the tumor still remains poorly understood. Recently, we globally investigated the contributions of lncRNA in SCLC with a special focus on sponge regulatory network. Here we report lncRNA HOTTIP, which is specifically amplified in SCLC, is associated with SCLC proliferation and poor prognosis of patients. METHODS: RT-qPCR was used to investigate the expression of HOTTIP in SCLC tissues and cell lines...
October 17, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/29041931/reprogramming-of-stromal-fibroblasts-by-snai2-contributes-to-tumor-desmoplasia-and-ovarian-cancer-progression
#3
Zongyuan Yang, Xin Yang, Sen Xu, Ping Jin, Xiaoting Li, Xiao Wei, Dan Liu, Kecheng Huang, Sixiang Long, Ya Wang, Chaoyang Sun, Gang Chen, Junbo Hu, Li Meng, Ding Ma, Qinglei Gao
BACKGROUND: Molecular profiling in ovarian cancer (OC) revealed that the desmoplasia subtype presented the poorest prognosis, highlighting the contribution of stromal fibroblasts in tumor progression. This study aimed to investigate the molecular characteristics of SNAI2 driving the transcriptional reprogramming of fibroblasts within tumors. METHODS: SNAI2 expression was evaluated in microdissected profiles of various cancers and in various molecular subtypes of OC...
October 17, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/29037201/evaluation-on-the-diagnostic-and-prognostic-values-of-long-non-coding-rna-blacat1-in-common-types-of-human-cancer
#4
LETTER
Xiaoli Chen, Meiyu Dai, Hongzhen Zhu, Jinwan Li, Zhizhuo Huang, Xuexiang Liu, Yujie Huang, Jingfan Chen, Shengming Dai
A growing number of evidence has indicated that long non-coding RNAs (lncRNA) may have many functions in the development and progression of cancer, and cloud serve as good diagnostic and prognostic biomarkers in cancers. However, these studies often revealed the changes of lncRNAs within a specific cancer type. Here, we focused on BLACAT1 and provided a comprehensive pan-cancer analysis to evaluate the diagnostic and prognostic values of BLACAT1. The expression data of BLACAT1 were came from the quantitative real-time polymerase chain reaction (qRT-PCR) and The Cancer Genome Atlas (TCGA) database, respectively...
October 16, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/29029605/monitoring-multiple-myeloma-by-idiotype-specific-peptide-binders-of-tumor-derived-exosomes
#5
Enrico Iaccino, Selena Mimmi, Vincenzo Dattilo, Fabiola Marino, Patrizio Candeloro, Antonio Di Loria, Danilo Marimpietri, Antonio Pisano, Francesco Albano, Eleonora Vecchio, Simona Ceglia, Gaetanina Golino, Antonio Lupia, Giuseppe Fiume, Ileana Quinto, Giuseppe Scala
Tumor-derived exosomes (TDEs) play a pivotal role in tumor establishment and progression, and are emerging biomarkers for tumor diagnosis in personalized medicine. To date, there is a lack of efficient technology platforms for exosome isolation and characterization. Multiple myeloma (MM) is an incurable B-cell malignancy due to the rapid development of drug-resistance. MM-released exosomes express the immunoglobulin B-cell receptor (Ig-BCR) of the tumor B-cells, which can be targeted by Idiotype-binding peptides (Id-peptides)...
October 13, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/29025423/downregulation-of-nmi-promotes-tumor-growth-and-predicts-poor-prognosis-in-human-lung-adenocarcinomas
#6
Jingshu Wang, Kun Zou, Xu Feng, Miao Chen, Cong Li, Ranran Tang, Yang Xuan, Meihua Luo, Wangbing Chen, Huijuan Qiu, Ge Qin, Yixin Li, Changlin Zhang, Binyi Xiao, Lan Kang, Tiebang Kang, Wenlin Huang, Xinfa Yu, Xiaojun Wu, Wuguo Deng
BACKGROUND: N-myc (and STAT) interactor (NMI) plays vital roles in tumor growth, progression, and metastasis. In this study, we identified NMI as a potential tumor suppressor in lung cancer and explored its molecular mechanism involved in lung cancer progression. METHODS: Human lung cancer cell lines and a mouse xenograft model was used to study the effect of NMI on tumor growth. The expression of NMI, COX-2 and relevant signaling proteins were examined by Western blot...
October 12, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/29020972/sumo1-modification-of-khsrp-regulates-tumorigenesis-by-preventing-the-tl-g-rich-mirna-biogenesis
#7
Haihua Yuan, Rong Deng, Xian Zhao, Ran Chen, Guofang Hou, Hailong Zhang, Yanli Wang, Ming Xu, Bin Jiang, Jianxiu Yu
BACKGROUND: MicroRNAs (miRNAs) are important regulators involved in diverse physiological and pathological processes including cancer. SUMO (small ubiquitin-like modifier) is a reversible protein modifier. We recently found that SUMOylation of TARBP2 and DGCR8 is involved in the regulation of the miRNA pathway. KHSRP is a single stranded nucleic acid binding protein with roles in transcription and mRNA decay, and it is also a component of the Drosha-DGCR8 complex promoting the miRNA biogenesis...
October 11, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28982366/identification-of-non-invasive-mirnas-biomarkers-for-prostate-cancer-by-deep-sequencing-analysis-of-urinary-exosomes
#8
LETTER
Marta Rodríguez, Cristina Bajo-Santos, Nina P Hessvik, Susanne Lorenz, Bastian Fromm, Viktor Berge, Kirsten Sandvig, Aija Linē, Alicia Llorente
The aim of this study was to identify microRNAs in urinary exosomes that are differently expressed in prostate cancer patients and healthy donors. For this purpose, RNA was extracted from urinary exosomes from 20 prostate cancer patients and 9 healthy males and the microRNAs were analyzed by next generation sequencing. Interestingly, 5 microRNAs - miR-196a-5p, miR-34a-5p, miR-143-3p, miR-501-3p and miR-92a-1-5p - were significantly downregulated in exosomes from prostate cancer patients. Furthermore, RT-qPCR analysis of an independent cohort of 28 prostate cancer patients and 19 healthy males confirmed that miR-196a-5p and miR-501-3p were downregulated in prostate cancer samples...
October 5, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28964256/a-novel-mechanism-of-lncrna-and-mirna-interaction-ccat2-regulates-mir-145-expression-by-suppressing-its-maturation-process-in-colon-cancer-cells
#9
Yingjie Yu, Pratima Nangia-Makker, Lulu Farhana, Adhip P N Majumdar
BACKGROUND: Although both long and micro RNAs are emerging as important functional components in colorectal cancer (CRC) progression and metastasis, the mechanism of their interaction remains poorly understood. CCAT2 (Colon cancer-associated transcript-2), a long noncoding RNA (lncRNA), has been reported to be over-expressed in CRC and is found to promote tumor growth. miRNAs, a class of naturally occurring short RNAs negatively control the expression of target genes by cleaving mRNA or through translation repression...
September 30, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28946875/overexpression-of-lncrna-igfbp4-1-reprograms-energy-metabolism-to-promote-lung-cancer-progression
#10
Binyao Yang, Lisha Zhang, Yi Cao, Shuai Chen, Jun Cao, Di Wu, Jiansong Chen, Huali Xiong, Zihua Pan, Fuman Qiu, Jinbin Chen, Xiaoxuan Ling, Maosheng Yan, Suli Huang, Shiyu Zhou, Tiegang Li, Lei Yang, Yunchao Huang, Jiachun Lu
BACKGROUND: Reprogrammed energy metabolism as an emerging hallmark of cancer has recently drawn special attention since it facilitate cell growth and proliferation. Recently, long noncoding RNAs (lncRNAs) have been served as key regulators implicated in tumor development and progression by promoting proliferation, invasion and metastasis. However, the associations of lncRNAs with cellular energy metabolism in lung cancer (LC) need to be clarified. METHODS: Here, we conducted bioinformatics analysis and found insulin-like growth factor binding protein 4-1 (IGFBP4-1) as a new candidate lncRNA located in the upstream region of IGFBP4 gene...
September 25, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28927416/tumor-related-interleukins-old-validated-targets-for-new-anti-cancer-drug-development
#11
REVIEW
Sarra Setrerrahmane, Hanmei Xu
In-depth knowledge of cancer molecular and cellular mechanisms have revealed a strong regulation of cancer development and progression by the inflammation which orchestrates the tumor microenvironment. Immune cells, residents or recruited, in the inflammation milieu can have rather contrasting effects during cancer development. Accumulated clinical and experimental data support the notion that acute inflammation could exert an immunoprotective effect leading to tumor eradication. However, chronic immune response promotes tumor growth and invasion...
September 19, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28893265/circular-rna_larp4-inhibits-cell-proliferation-and-invasion-of-gastric-cancer-by-sponging-mir-424-5p-and-regulating-lats1-expression
#12
Jing Zhang, Hui Liu, Lidan Hou, Ge Wang, Rui Zhang, Yanxia Huang, Xiaoyu Chen, Jinshui Zhu
BACKGROUND: Non-coding RNAs (ncRNAs) have been shown to regulate gene expression involved in tumor progression of multiple malignancies. Our previous studies indicated that large tumor suppressor kinase 1 (LATS1), a core part of Hippo signaling pathway, functions as a tumor suppressor in gastric cancer (GC). But, the underlying molecular mechanisms by which ncRNAs modulate LATS1 expression in GC remain undetermined. METHODS: The correlation of LATS1 and has-miR-424-5p (miR-424) expression with clinicopathological characteristics and prognosis of GC patients was analyzed by TCGA RNA-sequencing data...
September 11, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28893247/cell-specific-mechanisms-of-tmem16a-ca-2-activated-chloride-channel-in-cancer
#13
REVIEW
Hui Wang, Liang Zou, Ke Ma, Jiankun Yu, Huizhe Wu, Minjie Wei, Qinghuan Xiao
TMEM16A (known as anoctamin 1) Ca(2+)-activated chloride channel is overexpressed in many tumors. TMEM16A overexpression can be caused by gene amplification in many tumors harboring 11q13 amplification. TMEM16A expression is also controlled in many cancer cells via transcriptional regulation, epigenetic regulation and microRNAs. In addition, TMEM16A activates different signaling pathways in different cancers, e.g. the EGFR and CAMKII signaling in breast cancer, the p38 and ERK1/2 signaling in hepatoma, the Ras-Raf-MEK-ERK1/2 signaling in head and neck squamous cell carcinoma and bladder cancer, and the NFκB signaling in glioma...
September 11, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28854977/up-regulation-of-lncrna-casc9-promotes-esophageal-squamous-cell-carcinoma-growth-by-negatively-regulating-pdcd4-expression-through-ezh2
#14
Yuanyuan Wu, Liwen Hu, Yan Liang, Juan Li, Kai Wang, Xuedan Chen, Hui Meng, Xingying Guan, Kang Yang, Yun Bai
BACKGROUND: Abnormal expression of numerous long non-coding RNAs (lncRNAs) has been reported in esophageal squamous cell carcinoma (ESCC) recently, but the great majority of their roles and mechanisms remain largely unclear. We aim to identify the critical ESCC-associated lncRNAs and elucidate the functions and mechanisms in detail. METHODS: Microarrays were used to analyze the differentially expressed lncRNAs in ESCC tissues. qRT-PCR was used to verify the result of microarrays...
August 30, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28854942/the-biology-of-hepatocellular-carcinoma-implications-for-genomic-and-immune-therapies
#15
REVIEW
Galina Khemlina, Sadakatsu Ikeda, Razelle Kurzrock
Hepatocellular carcinoma (HCC), the most common type of primary liver cancer, is a leading cause of cancer-related death worldwide. It is highly refractory to most systemic therapies. Recently, significant progress has been made in uncovering genomic alterations in HCC, including potentially targetable aberrations. The most common molecular anomalies in this malignancy are mutations in the TERT promoter, TP53, CTNNB1, AXIN1, ARID1A, CDKN2A and CCND1 genes. PTEN loss at the protein level is also frequent. Genomic portfolios stratify by risk factors as follows: (i) CTNNB1 with alcoholic cirrhosis; and (ii) TP53 with hepatitis B virus-induced cirrhosis...
August 30, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28851432/erratum-to-long-non-coding-rna-linc00673-regulated-non-small-cell-lung-cancer-proliferation-migration-invasion-and-epithelial-mesenchymal-transition-by-sponging-mir-150-5p
#16
Wei Lu, Honghe Zhang, Yuequn Niu, Yongfeng Wu, Wenjie Sun, Hongyi Li, Jianlu Kong, Kefeng Ding, Han-Ming Shen, Han Wu, Dajing Xia, Yihua Wu
No abstract text is available yet for this article.
August 29, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28851377/exosomal-mirnas-and-mirna-dysregulation-in-cancer-associated-fibroblasts
#17
REVIEW
Fengming Yang, Zhiqiang Ning, Ling Ma, Weitao Liu, Chuchu Shao, Yongqian Shu, Hua Shen
PURPOSE: The present review aimed to assess the role of exosomal miRNAs in cancer-associated fibroblasts (CAFs), normal fibroblasts (NFs), and cancer cells. The roles of exosomal miRNAs and miRNA dysregulation in CAF formation and activation were summarized. METHODS: All relevant publications were retrieved from the PubMed database, with key words such as CAFs, CAF, stromal fibroblasts, cancer-associated fibroblasts, miRNA, exosomal, exosome, and similar terms. RESULTS: Recent studies have revealed that CAFs, NFs, and cancer cells can secrete exosomal miRNAs to affect each other...
August 29, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28851367/role-of-exosomal-proteins-in-cancer-diagnosis
#18
REVIEW
Weihua Li, Chuanyun Li, Tong Zhou, Xiuhong Liu, Xiaoni Liu, Xiuhui Li, Dexi Chen
Exosomes are emerging as a new type of cancer biomarkers. Exosome is a bilayered nano-sized vesicle secreted by various living cells in all body fluids. Based on the expanding albeit incomplete knowledge of their biogenesis, secretion by cells and cancer cell-specific molecular and genetic contents, exosomes are viewed as promising, clinically-relevant surrogates of cancer progression and response to therapy. Preliminary proteomic, genetic and functional profiling of cancer cell-derived or cancer plasma-derived exosomes confirms their unique characteristics...
August 29, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28851363/the-oncogenic-role-of-the-in1-ghrelin-splicing-variant-in-prostate-cancer-aggressiveness
#19
Daniel Hormaechea-Agulla, Manuel D Gahete, Juan M Jiménez-Vacas, Enrique Gómez-Gómez, Alejandro Ibáñez-Costa, Fernando L-López, Esther Rivero-Cortés, André Sarmento-Cabral, José Valero-Rosa, Julia Carrasco-Valiente, Rafael Sánchez-Sánchez, Rosa Ortega-Salas, María M Moreno, Natia Tsomaia, Steve M Swanson, Michael D Culler, María J Requena, Justo P Castaño, Raúl M Luque
BACKGROUND: The Ghrelin-system is a complex, pleiotropic family composed of several peptides, including native-ghrelin and its In1-ghrelin splicing variant, and receptors (GHSR 1a/b), which are dysregulated in various endocrine-related tumors, where they associate to pathophysiological features, but the presence, functional role, and mechanisms of actions of In1-ghrelin splicing variant in prostate-cancer (PCa), is completely unexplored. Herein, we aimed to determine the presence of key ghrelin-system components (native-ghrelin, In1-ghrelin, GHSR1a/1b) and their potential pathophysiological role in prostate cancer (PCa)...
August 29, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28851360/phospholipid-phosphatase-4-promotes-proliferation-and-tumorigenesis-and-activates-ca-2-permeable-cationic-channel-in-lung-carcinoma-cells
#20
Xin Zhang, Lan Zhang, Bihua Lin, Xingxing Chai, Ronggang Li, Yuehua Liao, Xinghui Deng, Qiongru Liu, Wenli Yang, Yubo Cai, Wei Zhou, Zhichao Lin, Wenhai Huang, Meigong Zhong, Fangyong Lei, Jinhua Wu, Shuaishuai Yu, Xiaoping Li, Shangren Li, Yueyue Li, Jincheng Zeng, Wansheng Long, Dong Ren, Yanming Huang
BACKGROUND: Phospholipid phosphatase 4 (PPAPDC1A or PLPP4) has been demonstrated to be involved in the malignant process of many cancers. The purpose of this study was to investigate the clinical significance and biological roles of PLPP4 in lung carcinoma. METHODS: PLPP4 expression was examined in 8 paired lung carcinoma tissues by real-time PCR and in 265 lung carcinoma tissues by immunohistochemistry (IHC). Statistical analysis was performed to evaluate the clinical correlation between PLPP4 expression and clinicopathological features and survival in lung carcinoma patients...
August 29, 2017: Molecular Cancer
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