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Molecular Cancer

Yanyu Pang, Xiaoyang Hou, Chunsheng Yang, Yanqun Liu, Guan Jiang
Tumor treatment is still complicated in the field of medicine. Tumor immunotherapy has been the most interesting research field in cancer therapy. Application of chimeric antigen receptor T (CAR-T) cell therapy has recently achieved excellent clinical outcome in patients, especially those with CD19-positive hematologic malignancies. This phenomenon has induced intense interest to develop CAR-T cell therapy for cancer, especially for solid tumors. However, the performance of CAR-T cell treatment in solid tumor is not as satisfactory as that in hematologic disease...
May 16, 2018: Molecular Cancer
Xirui Liu, Yingjian Liang, Ruipeng Song, Guangchao Yang, Jihua Han, Yaliang Lan, Shangha Pan, Mingxi Zhu, Yao Liu, Yan Wang, Fanzheng Meng, Yifeng Cui, Jiabei Wang, Bo Zhang, Xuan Song, Zhaoyang Lu, Tongsen Zheng, Lianxin Liu
BACKGROUND: Abnormal metabolism, including abnormal lipid metabolism, is a hallmark of cancer cells. Some studies have demonstrated that the lipogenic pathway might promote the development of hepatocellular carcinoma (HCC). However, the role of the lipolytic pathway in HCC has not been elucidated. METHODS: We compared levels of adipose triglyceride lipase (ATGL) in human HCC and healthy liver tissues by real time PCR, western blot and immunohistochemistry. We measured diacylglycerol(DAG) and free fatty acid (FFA) levels in HCC cells driven by the NEAT1-ATGL axis and in HCC tissues...
May 15, 2018: Molecular Cancer
Mengqin Shen, Xiaoping Zhao, Li Zhao, Liang Shi, Shuxian An, Gang Huang, Jianjun Liu
TIGAR is a p53 target gene that is known to protect cells from ROS-induced apoptosis by promoting the pentose phosphate pathway. The role of TIGAR in tumor cell invasion and metastasis remains elusive. Here we found that downregulation of TIGAR reduced the invasion and metastasis of NSCLC cells in vitro and in vivo. Immunohistochemical analysis of 72 NSCLC patients showed that TIGAR and Met protein expression was positively correlated with late stages of lung cancer. Besides, patients with high co-expression of TIGAR and Met presented a significantly worse survival...
May 12, 2018: Molecular Cancer
Yong Wang, Xiandong Zeng, Ningning Wang, Wei Zhao, Xi Zhang, Songling Teng, Yueyan Zhang, Zhi Lu
BACKGROUND: Accumulating evidences indicate that non-coding RNAs (ncRNAs) including long non-coding RNAs (lncRNAs) and microRNAs (miRNAs) acting as crucial regulators in osteosarcoma (OS). Previously, we reported that Rho associated coiled-coil containing protein kinase 1 (ROCK1), a metastatic-related gene was negatively regulated by microRNA-335-5p (miR-335-5p) and work as an oncogene in osteosarcoma. Whether any long non-coding RNAs participate in the upstream of miR-335-5p/ROCK1 axial remains unclear...
May 12, 2018: Molecular Cancer
Gang Zhang, Shuwei Li, Jiafei Lu, Yuqiu Ge, Qiaoyan Wang, Gaoxiang Ma, Qinghong Zhao, Dongdong Wu, Weida Gong, Mulong Du, Haiyan Chu, Meilin Wang, Aihua Zhang, Zhengdong Zhang
BACKGROUND: Emerging evidence has shown that dysregulation function of long non-coding RNAs (lncRNAs) implicated in gastric cancer (GC). However, the role of the differentially expressed lncRNAs in GC has not fully explained. METHODS: LncRNA expression profiles were determined by lncRNA microarray in five pairs of normal and GC tissues, further validated in another 75 paired tissues by quantitative real-time PCR (qRT-PCR). Overexpression of lncRNA MT1JP was conducted to assess the effect of MT1JP in vitro and in vivo...
May 2, 2018: Molecular Cancer
Cheng Lu, Xi Shi, Amanda Y Wang, Yuan Tao, Zhenxiao Wang, Chaoping Huang, Yuehua Qiao, Hongyi Hu, Liangfa Liu
Abnormal expression of non-coding circular RNAs (circRNAs) have been reported in many types of tumors. circRNA have been suggested to be an ideal candidate biomarker for diagnostic and therapeutic implications in cancers. The aim of this study was to assess the circRNA expression profile of laryngeal squamous cell carcinomas (LSCC). The biopsy samples from patients with LSCC were obtained intra-operatively. The circRNA expression was performed using secondary sequencing. Among 10 patients with LSCC, 2 were well differentiated, 3 were moderately differentiated and 5 were adjunctive samples with normal and LSCC tissues...
May 1, 2018: Molecular Cancer
Joëlle El Hajj, Eric Nguyen, Qingyuan Liu, Claire Bouyer, Eric Adriaenssens, George Hilal, Evelyne Ségal-Bendirdjian
BACKGROUND: Since tumor growth requires reactivation of telomerase (hTERT), this enzyme is a challenging target for drug development. Therefore, it is of great interest to identify telomerase expression and activity regulators. Retinoids are well-known inducers of granulocytic maturation associated with hTERT repression in acute promyelocytic leukemia (APL) blasts. In a maturation-resistant APL cell line, we have previously identified a new pathway of retinoid-induced hTERT transcriptional repression independent of differentiation...
April 27, 2018: Molecular Cancer
Ling-Yun Lin, Li Yang, Qiang Zeng, Lin Wang, Mao-Li Chen, Ze-Hang Zhao, Guo-Dong Ye, Qi-Cong Luo, Pei-Yu Lv, Qi-Wei Guo, Bo-An Li, Jian-Chun Cai, Wang-Yu Cai
Conventional tumor markers for non-invasive diagnosis of gastric cancer (GC) exhibit insufficient sensitivity and specificity to facilitate detection of early gastric cancer (EGC). We aimed to identify EGC-specific exosomal lncRNA biomarkers that are highly sensitive and stable for the non-invasive diagnosis of EGC. Hence, in the present study, exosomes from the plasma of five healthy individuals and ten stage I GC patients and from culture media of four human primary stomach epithelial cells and four gastric cancer cells (GCCs) were isolated...
April 24, 2018: Molecular Cancer
Cheng-Fei Jiang, Zhu-Mei Shi, Dong-Mei Li, Ying-Chen Qian, Yi Ren, Xiao-Ming Bai, Yun-Xia Xie, Lin Wang, Xin Ge, Wei-Tao Liu, Lin-Lin Zhen, Ling-Zhi Liu, Bing-Hua Jiang
BACKGROUND: Estrogen plays a critical role in breast cancer (BC) progression through estrogen receptor (ER)-mediated gene regulation. Emerging studies suggest that the malignant progress of BC cells is influenced by the cross talk between microRNAs (miRNAs) and ER-α signaling. However, the mechanism and functional linkage between estrogen and miRNAs remain unclear. METHODS: The expression levels of miR-196a and SPRED1 in BC were tested by qRT-PCR in 46 paired BC and adjacent tissues and by the GEO datasets...
April 23, 2018: Molecular Cancer
Zhenqiang Sun, Shuaixi Yang, Quanbo Zhou, Guixian Wang, Junmin Song, Zhen Li, Zhiyong Zhang, Jizhong Xu, Kunkun Xia, Yuan Chang, Jinbo Liu, Weitang Yuan
Exosomes are extracellular vesicles released by many cell types and have been attributed for their roles in many diseases including cancer. Exosomes secreted by tumor cells and stromal cells are critical mediators of intercellular communication in tumor microenvironments. Long noncoding RNAs (lncRNAs) are selectively sorted into exosomes and can regulate cancer onset and progression in a variety of ways. In this review, we summarize the characteristics of exosomal lncRNAs and their dysregulation in multiple types of cancer...
April 20, 2018: Molecular Cancer
José M García-Heredia, Amancio Carnero
No abstract text is available yet for this article.
April 12, 2018: Molecular Cancer
Liang Liu, Jimmy Ruiz, Stacey S O'Neill, Stefan C Grant, W Jeffrey Petty, Meng Yang, Kexin Chen, Umit Topaloglu, Boris Pasche, Wei Zhang
Mutations in polymerase ε (POLE) confer favorable prognosis and outcomes in various cancer types, but their role in non-small cell lung cancer (NSCLC) is unknown. Utilizing the data of 513 patients with adenocarcinoma (LUAD) and 497 patients with squamous cell carcinoma (LUSC) from The Cancer Genome Atlas (TCGA) cohort, we tested the prognostic value of POLE mutations and programmed cell death ligand 1 (PD-L1) expression in the two main subtypes of NSCLC. POLE mutation is a favorable biomarker for the improved overall survival (OS) of the LUSC patients (P = 0...
April 12, 2018: Molecular Cancer
Yaxian Zhong, Yajun Du, Xue Yang, Yongzhen Mo, Chunmei Fan, Fang Xiong, Daixi Ren, Xin Ye, Chunwei Li, Yumin Wang, Fang Wei, Can Guo, Xu Wu, Xiaoling Li, Yong Li, Guiyuan Li, Zhaoyang Zeng, Wei Xiong
Circular RNAs (circRNAs) are connected at the 3' and 5' ends by exon or intron cyclization, forming a complete ring structure. circRNA is more stable and conservative than linear RNA and abounds in various organisms. In recent years, increasing numbers of reports have found that circRNA plays a major role in the biological functions of a network of competing endogenous RNA (ceRNA). circRNAs can compete together with microRNAs (miRNAs) to influence the stability of target RNAs or their translation, thus, regulating gene expression at the transcriptional level...
April 7, 2018: Molecular Cancer
Chunling Ma, Fang Wang, Bing Han, Xiaoli Zhong, Fusheng Si, Jian Ye, Eddy C Hsueh, Lynn Robbins, Susan M Kiefer, Yanping Zhang, Pamela Hunborg, Mark A Varvares, Michael Rauchman, Guangyong Peng
BACKGROUND: SALL1 is a multi-zinc finger transcription factor that regulates organogenesis and stem cell development, but the role of SALL1 in tumor biology and tumorigenesis remains largely unknown. METHODS: We analyzed SALL1 expression levels in human and murine breast cancer cells as well as cancer tissues from different types of breast cancer patients. Using both in vitro co-culture system and in vivo breast tumor models, we investigated how SALL1 expression in breast cancer cells affects tumor cell growth and proliferation, metastasis, and cell fate...
April 6, 2018: Molecular Cancer
Yanyan Tang, Yi He, Ping Zhang, Jinpeng Wang, Chunmei Fan, Liting Yang, Fang Xiong, Shanshan Zhang, Zhaojian Gong, Shaolin Nie, Qianjin Liao, Xiayu Li, Xiaoling Li, Yong Li, Guiyuan Li, Zhaoyang Zeng, Wei Xiong, Can Guo
Some of the key steps in cancer metastasis are the migration and invasion of tumor cells; these processes require rearrangement of the cytoskeleton. Actin filaments, microtubules, and intermediate filaments involved in the formation of cytoskeletal structures, such as stress fibers and pseudopodia, promote the invasion and metastasis of tumor cells. Therefore, it is important to explore the mechanisms underlying cytoskeletal regulation. The ras homolog family (Rho) and Rho-associated coiled-coil containing protein serine/threonine kinase (ROCK) signaling pathway is involved in the regulation of the cytoskeleton...
April 4, 2018: Molecular Cancer
Aditi Majumder, Khaja Moheiddin Syed, Ananda Mukherjee, Manendra Babu Lankadasari, Juberiya Mohammed Azeez, Sreeharshan Sreeja, Kuzhuvelil B Harikumar, Madhavan Radhakrishna Pillai, Debasree Dutta
DNA damage-specific histone chaperone Aprataxin PNK-like factor (APLF) regulates mesenchymal-to-epithelial transition (MET) during cellular reprogramming. We investigated the role of APLF in epithelial-to-mesenchymal transition (EMT) linked to breast cancer invasiveness and metastasis. Here, we show that a significant manifestation of APLF is present in tumor sections of patients with invasive ductal carcinoma when compared to their normal adjacent tissues. APLF was significantly induced in triple negative breast cancer (TNBC) cells, MDAMB-231, in comparison to invasive MCF7 or normal MCF10A breast cells and supported by studies on invasive breast carcinoma in The Cancer Genome Atlas (TCGA)...
March 26, 2018: Molecular Cancer
Ruihao Zhou, Kaddie Kwok Chen, Jingtao Zhang, Bufan Xiao, Zhaohao Huang, Cheng Ju, Jun Sun, Feifei Zhang, Xiao-Bin Lv, Guofu Huang
Exosomes have emerged as a novel approach for the treatment and diagnosis of cancer after RNA content was discovered in exosomes in 2007. As important meditators of intercellular communication, exosomes have become a strong focus of investigation for researchers in the past decade, as witnessed through the exponential increase of research on exosomes. The capability of exosomes to transfer functionally active cargo highlights their importance as promising biomarkers and diagnostic molecules, as well as prospective drug delivery systems...
March 20, 2018: Molecular Cancer
Sze Kiat Tan, Chiara Pastori, Clara Penas, Ricardo J Komotar, Michael E Ivan, Claes Wahlestedt, Nagi G Ayad
Glioblastoma multiforme (GBM) is the most common and aggressive malignant adult primary brain tumor. Despite surgical resection followed by radiotherapy and chemotherapy, the median survival rate is approximately 14 months. Although experimental therapies are in clinical trials for GBM, there is an urgent need for a peripheral GBM biomarker for measuring treatment response. As we have previously demonstrated that the long noncoding RNA HOX Transcript Antisense Intergenic RNA, or HOTAIR, is dysregulated in GBM and required for GBM cell proliferation, we hypothesized that HOTAIR expression may be utilized as a peripheral biomarker for GBM...
March 20, 2018: Molecular Cancer
Xiaomin Fu, Xiaoyan Zhu, Fujun Qin, Yong Zhang, Jizhen Lin, Yuechao Ding, Zihe Yang, Yiman Shang, Li Wang, Qinxian Zhang, Quanli Gao
BACKGROUND: Liver tumor initiating cells (TICs) have self-renewal and differentiation properties, accounting for tumor initiation, metastasis and drug resistance. Long noncoding RNAs are involved in many physiological and pathological processes, including tumorigenesis. DNA copy number alterations (CNA) participate in tumor formation and progression, while the CNA of lncRNAs and their roles are largely unknown. METHODS: LncRNA CNA was determined by microarray analyses, realtime PCR and DNA FISH...
March 14, 2018: Molecular Cancer
Kuo-Wang Tsai, Yi-Hao Lo, Hsuan Liu, Chung-Yu Yeh, You-Zuo Chen, Chao-Wen Hsu, Wei-Shone Chen, Jui-Ho Wang
BACKGROUND: Colorectal cancer (CRC) is one of the most common cancers and causes of cancer-related death worldwide. In patients with CRC, metastasis is a crucial problem that leads to treatment failure and is the primary cause of the lethality of colon cancer. Long noncoding RNAs (lncRNAs) have recently emerged as critical molecules in the development, cell growth, apoptosis, and metastasis of CRC. METHOD: We investigated the transcriptome profiles of human lncRNAs in the primary tumor tissues and in the corresponding normal mucosa of two patients with CRC by using a microarray approach...
March 10, 2018: Molecular Cancer
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