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Journal of Experimental & Clinical Cancer Research: CR

Silvia Matteoni, Claudia Abbruzzese, Paola Matarrese, Gabriele De Luca, Anna M Mileo, Stefania Miccadei, Silvia Schenone, Francesca Musumeci, Tobias L Haas, Giovanni Sette, Carmine M Carapella, Rosario Amato, Nicola Perrotti, Michele Signore, Marco G Paggi
BACKGROUND: Glioblastoma multiforme (GBM), due to its location, aggressiveness, heterogeneity and infiltrative growth, is characterized by an exceptionally dismal clinical outcome. The small molecule SI113, recently identified as a SGK1 inhibitor, has proven to be effective in restraining GBM growth in vitro and in vivo, showing also encouraging results when employed in combination with other antineoplastic drugs or radiotherapy. Our aim was to explore the pharmacological features of SI113 in GBM cells in order to elucidate the pivotal molecular pathways affected by the drug...
May 17, 2019: Journal of Experimental & Clinical Cancer Research: CR
Ignacio Campillo-Marcos, Pedro A Lazo
BACKGROUND: The VRK1 chromatin kinase regulates the organization of locally altered chromatin induced by DNA damage. The combination of ionizing radiation with inhibitors of DNA damage responses increases the accumulation of DNA damage in cancer cells, which facilitates their antitumor effect, a process regulated by VRK1. METHODS: Tumor cell lines with different genetic backgrounds were treated with olaparib to determine their effect on the activation of DNA repair pathways induced by ionizing radiation...
May 17, 2019: Journal of Experimental & Clinical Cancer Research: CR
Bosen Zhang, Liwei Song, Jiali Cai, Lei Li, Hong Xu, Mengying Li, Jiamin Wang, Minmin Shi, Hao Chen, Hao Jia, Zhaoyuan Hou
BACKGROUND: The aim of this study is to explore the molecular mechanism of the LIM protein Ajuba and the transcription factor SP1 in the pathogenesis and progression of PDAC. Ajuba is a newly defined transcriptional co-regulator and plays important role in various cancer development, while SP1 is a classic transcription factor, and is closely related with a variety of gene expression and cancer development including PDAC. METHODS: The expression of Ajuba and SP1 in PDAC tissues was detected by immunohistochemistry (IHC), and the correlation between expression level and clinical prognosis of Ajuba and SP1 was extensively analyzed using online tools...
May 17, 2019: Journal of Experimental & Clinical Cancer Research: CR
Zhi-Fei Wang, Fan Liao, Hao Wu, Jin Dai
BACKGROUND: Cancer stem cells (CSCs), which are involved in cancer initiation and metastasis, could potentially release exosomes that mediate cellular communication by delivering microRNAs (miRNAs). Based on the role of miR-26a in angiogenesis of glioma, our study was performed to investigate whether glioma stem cells (GSCs)-derived exosomes containing miR-26a could exert effects on angiogenesis of microvessel endothelial cells in glioma, in order to provide a new therapeutic RNA vehicle for glioma therapies...
May 17, 2019: Journal of Experimental & Clinical Cancer Research: CR
Jiao Feng, Liwei Wu, Jie Ji, Kan Chen, Qiang Yu, Jie Zhang, Jiaojiao Chen, Yuqing Mao, Fan Wang, Weiqi Dai, Ling Xu, Jianye Wu, Chuanyong Guo
BACKGROUND: The treatment for advanced primary hepatocellular carcinoma (HCC) is sorafenib (SORA), while HCC has become increasingly drug resistant with enhanced aerobic glycolysis. The present study aimed to examine the chemotherapeutic effects of a flavonoid proanthocyanidin B2 (PB2) on HCC. METHODS: Five kinds of HCC cell lines and LO2 were used to test the effect of PB2 on aerobic glycolysis. The proliferation, cell cycle, apoptosis and a xenograft mouse model were analyzed...
May 17, 2019: Journal of Experimental & Clinical Cancer Research: CR
Haoming Mai, Bin Zhou, Li Liu, Fu Yang, Carly Conran, Yuan Ji, Jinlin Hou, Deke Jiang
Hepatocellular carcinoma (HCC) is one of the most notable lethal malignancies worldwide. However, the molecular mechanisms involved in the initiation and progression of this disease remain poorly understood. Over the past decade, many studies have demonstrated the important regulatory roles of long non-coding RNAs (lncRNAs) in HCC. Here, we comprehensively review recent discoveries regarding HCC-associated lncRNA functions, which we have classified and described according to their mechanism models.
May 16, 2019: Journal of Experimental & Clinical Cancer Research: CR
Bing Liu, Hongye Ma, Qianqian Liu, Yang Xiao, Shimeng Pan, Huimin Zhou, Li Jia
BACKGROUND: Acute myeloid leukemia (AML) is initiated and maintained by a unique, small subset of leukemia stem cells (LSCs). LSCs are characterized by unrestricted self-renewal and contribute to the malignancy of leukemia. Aberrant protein fucosylation is associated with AML progression. However, it is still less understood that the miR-29b/Sp1/FUT4 crosstalk involved in the fucosylation-mediated LSCs malignancy in AML. METHODS: AML cell lines were sorted by magnetic microbeads to obtain the CD34 + CD38- sub-population...
May 16, 2019: Journal of Experimental & Clinical Cancer Research: CR
Qianqian Liu, Hongye Ma, Xiuhua Sun, Bing Liu, Yang Xiao, Shimeng Pan, Huimin Zhou, Weijie Dong, Li Jia
BACKGROUND: Noncoding RNAs, including microRNAs (miRNAs) and long non-coding RNAs (lncRNAs) are becoming key parts in the development of multidrug resistance (MDR) in T-cell acute lymphoblastic leukemia (T-ALL). Abnormal expression in sialyated N-glycans have been observed in MDR leukemia. However, the role of sialylation regulated MDR remains poorly understood. The aim of this work is to analyze the alternation of N-glycans in T-ALL MDR. METHODS: Here, mass spectrometry (MS) is analyzed to screen the N-glycan profiles from ALL cell line CR and adriamycin (ADR)-resistant CR (CR/A) cells...
May 16, 2019: Journal of Experimental & Clinical Cancer Research: CR
Jiachuan Yu, Yuanyuan Luo, Qingping Wen
BACKGROUND: Cancer pain is a debilitating disorder of human breast cancer and a primary determinant of the poor quality of life, and relieving pain is fundamental strategy in the cancer treatment. However, opioid analgesics, like morphine and fentanyl, which are widely used in cancer pain treatment have been reported to enhance stem-like traits and epithelial-mesenchymal transition (EMT) of breast cancer cells. As such, it is vital to make the best choice of analgesic for breast cancer management...
May 15, 2019: Journal of Experimental & Clinical Cancer Research: CR
Zhan-Hong Chen, Jing-Jing Qi, Qi-Nian Wu, Jia-Huan Lu, Ze-Xian Liu, Yun Wang, Pei-Shan Hu, Ting Li, Jin-Fei Lin, Xiang-Yuan Wu, Lei Miao, Zhao-Lei Zeng, Dan Xie, Huai-Qiang Ju, Rui-Hua Xu, Feng Wang
BACKGROUND: Deregulation of protein translation control is a hallmark of cancers. Eukaryotic initiation factor 4A2 (EIF4A2) is required for mRNA binding to ribosome and plays an important role in translation initiation. However, little is known about its functions in colorectal cancer (CRC). METHODS: Analysis of CRC transcriptome data from TCGA identified that EIF4A2 was associated with poor prognosis. Immunohistochemistry study of EIF4A2 was carried out in 297 paired colorectal tumor and adjacent normal tissue samples...
May 14, 2019: Journal of Experimental & Clinical Cancer Research: CR
Qingke Duan, Hehe Li, Chenggang Gao, Hengqiang Zhao, Shihong Wu, Heshui Wu, Chunyou Wang, Qiang Shen, Tao Yin
BACKGROUND: Modulation of cell surface expression of MHC class I chain-related protein A/B (MICA/B) has been proven to be one of the mechanisms by which tumor cells escape from NK cell-mediated killing. Abnormal metabolic condition, such as high glucose, may create a cellular stress milieu to induce immune dysfunction. Hyperglycemia is frequently presented in the majority of pancreatic cancer patients and is associated with poor prognosis. In this study, we aimed to detect the effects of high glucose on NK cell-mediated killing on pancreatic cancer cells through reduction of MICA/B expression...
May 14, 2019: Journal of Experimental & Clinical Cancer Research: CR
Aikaterini Emmanouilidi, Chanse A Fyffe, Riccardo Ferro, Charlotte E Edling, Emily Capone, Simona Sestito, Simona Rapposelli, Rossano Lattanzio, Stefano Iacobelli, Gianluca Sala, Tania Maffucci, Marco Falasca
BACKGROUND: The very aggressive nature and low survival rate of pancreatic ductal adenocarcinoma (PDAC) dictates the necessity to find novel efficacious therapies. Recent evidence suggests that phosphoinositide 3-kinase (PI3K) and 3-phosphoinositide-dependent protein kinase 1 (PDK1) are key effectors of oncogenic KRAS in PDAC. Herein, we report the role and mechanism of action of PDK1, a protein kinase of the AGC family, in PDAC. METHODS: PDAC cell lines were treated with selective PDK1 inhibitors or transfected with specific PDK1-targeting siRNAs...
May 14, 2019: Journal of Experimental & Clinical Cancer Research: CR
Yanhui Chen, Quanxing Liu, Zhiming Chen, Yating Wang, Wanning Yang, Ying Hu, Wenbo Han, Hui Zeng, Haitao Ma, Jigang Dai, Henghui Zhang
BACKGROUND: Several targeted immunotherapies have recently showed significant advances in treatment of non-small cell lung cancer (NSCLC), including antibodies and inhibitors targeting programmed death-1 (PD-1) and its ligand (PD-L1). METHODS: Tumor tissue samples were prospectively collected from 183 patients with NSCLC including lung adenocarcinoma (ADC) and squamous cell carcinoma (SQCC). PD-L1 expression level was measured by immunohistochemistry assay and tumor mutational burden (TMB) status was assessed by next generation sequencing...
May 14, 2019: Journal of Experimental & Clinical Cancer Research: CR
Zhikui Liu, Yufeng Wang, Liang Wang, Bowen Yao, Liankang Sun, Runkun Liu, Tianxiang Chen, Yongshen Niu, Kangsheng Tu, Qingguang Liu
BACKGROUND: Accumulating evidence has highlighted the potential role of long non-coding RNAs (lncRNAs) in the biological behaviors of hepatocellular carcinoma (HCC). Here, we elucidated the function and possible molecular mechanisms of the effect of lncRNA-AGAP2-AS1 on the biological behaviors of HCC. METHODS: EdU, Transwell and flow cytometry were used to determine proliferation, migration, invasion and apoptosis of HCC cells in vitro. The subcutaneous tumor model and lung metastasis mouse model in nude mice was established to detect tumor growth and metastasis of HCC in vivo...
May 14, 2019: Journal of Experimental & Clinical Cancer Research: CR
Jiang-Jiang Qin, Li Yan, Jia Zhang, Wei-Dong Zhang
Triple negative breast cancer (TNBC), which is typically lack of expression of estrogen receptor (ER), progesterone receptor (PR), and human epidermal growth factor receptor 2 (HER2), represents the most aggressive and mortal subtype of breast cancer. Currently, only a few treatment options are available for TNBC due to the absence of molecular targets, which underscores the need for developing novel therapeutic and preventive approaches for this disease. Recent evidence from clinical trials and preclinical studies has demonstrated a pivotal role of signal transducer and activator of transcription 3 (STAT3) in the initiation, progression, metastasis, and immune evasion of TNBC...
May 14, 2019: Journal of Experimental & Clinical Cancer Research: CR
Hongda Ding, Junpeng Liu, Ruoyao Zou, Pengrui Cheng, Yang Su
BACKGROUND: Hepatocellular carcinoma (HCC) is still the most common cause of tumor-related death worldwide and accumulating studies report that long non-coding RNAs (LncRNAs) are closely related with HCC development, metastasis and prognosis. Cisplatinum, a well-known chemotherapeutic drug, has been widely used for treatment of numerous human cancers including HCC. This study aimed to investigate the differential expressions of LncRNAs in HCC cells treated with cisplatinum and its underlying mechanism...
May 9, 2019: Journal of Experimental & Clinical Cancer Research: CR
Maria Karmella Apaya, Jeng-Yuan Shiau, Guo-Shiou Liao, Yu-Jen Liang, Chia-Wei Chen, Hsin-Chou Yang, Chi-Hong Chu, Jyh-Cherng Yu, Lie-Fen Shyur
BACKGROUND: Current prognostic tools and targeted therapeutic approaches have limited value for metastatic triple negative breast cancer (TNBC). Building upon current knowledge, we hypothesized that epoxyeicosatrienoic acids (EETs) and related CYP450 epoxygenases may have differential roles in breast cancer signaling, and better understanding of which may uncover potential directions for molecular stratification and personalized therapy for TNBC patients. METHODS: We analyzed the oxylipin metabolome of paired tumors and adjacent normal mammary tissues from patients with pathologically confirmed breast cancer (N = 62)...
May 9, 2019: Journal of Experimental & Clinical Cancer Research: CR
Chiara Marchiori, Melania Scarpa, Andromachi Kotsafti, Susan Morgan, Matteo Fassan, Vincenza Guzzardo, Andrea Porzionato, Imerio Angriman, Cesare Ruffolo, Stefania Sut, Stefano Dall'Acqua, Romeo Bardini, Raffaele De Caro, Carlo Castoro, Marco Scarpa, Ignazio Castagliuolo
BACKGROUND: One of the most potent costimulatory molecules involved in the recognition and killing of tumor cells is CD80. However, its role and the molecular mechanisms regulating its expression in sporadic colorectal carcinogenesis remain elusive. Here, we provide evidence for CD80 overexpression in human colon epithelial cells derived from preneoplastic mucosa. METHODS: Expression of CD80 on colonic epithelial cells isolated from normal human colonic mucosa, preneoplastic and neoplastic specimens was assessed by flow cytometry...
May 9, 2019: Journal of Experimental & Clinical Cancer Research: CR
Guohui Hu, Zhengwei Yan, Cheng Zhang, Minzhang Cheng, Yehong Yan, Yiting Wang, Libin Deng, Quqin Lu, Shiwen Luo
BACKGROUND: Forkhead box M1 (FOXM1) is a proliferation-associated transcription factor of the forkhead box proteins superfamily, which includes four isoforms FOXM1a, b, c, and d. FOXM1 has been implicated in hepatocellular carcinoma (HCC) progression, but the underlying molecular mechanism remains elusive. In this study, we aim to clarify the molecular basis for FOXM1-mediated HCC progression. METHODS: Bioinformatic analysis was used to explore the differentially expressed genes predicting HCC proliferation...
May 9, 2019: Journal of Experimental & Clinical Cancer Research: CR
Hsin-Ling Yang, Varadharajan Thiyagarajan, Pei-Chun Shen, Dony Chacko Mathew, Kai-Yuan Lin, Jiunn-Wang Liao, You-Cheng Hseu
BACKGROUND: Breast cancer is the most prevalent cancer among women. In triple-negative breast cancer (TNBC) cells, a novel quinone derivative, coenzyme Q0 (CoQ0 ), promotes apoptosis and cell-cycle arrest. This study explored the anti-epithelial-mesenchymal transition (EMT) and antimetastatic attributes of CoQ0 in TNBC (MDA-MB-231). METHODS: Invasion, as well as MTT assays were conducted. Lipofectamine RNAiMAX was used to transfect cells with β-catenin siRNA. Through Western blotting and RT-PCR, the major signaling pathways' protein expressions were examined, and the biopsied tumor tissues underwent immunohistochemical and hematoxylin and eosin staining as well as Western blotting...
May 8, 2019: Journal of Experimental & Clinical Cancer Research: CR
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