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Nasopharyngeal carcinoma

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https://www.readbyqxmd.com/read/27926490/positive-regulation-of-taz-expression-by-ebv-lmp1-contributes-to-cell-proliferation-and-epithelial-mesenchymal-transition-in-nasopharyngeal-carcinoma
#1
Jiang He, Feiyu Tang, Liyu Liu, Lin Chen, Jiang Li, Danming Ou, Lu Zhang, Zhi Li, Deyun Feng, Wenzheng Li, Lun-Quan Sun
The Epstein-Barr virus latent membrane protein 1 (LMP1) is an integral membrane protein. LMP1 has been reported to activate the NF-κB and mitogen-activated protein kinase pathways. However, these effects alone are unable to account for the profound oncogenic properties of LMP1. TAZ is one of the nuclear effectors of Hippo-related pathways and highly expressed in many human tumors. Here, we reported that TAZ was frequently expressed in LMP1-positive nasopharyngeal carcinoma. In NPC cell lines, we showed that LMP1 promoted TAZ expression...
December 2, 2016: Oncotarget
https://www.readbyqxmd.com/read/27923823/bortezomib-relieves-immune-tolerance-in-nasopharyngeal-carcinoma-via-stat1-suppression-and-indoleamine-2-3-dioxygenase-downregulation
#2
Guan-Min Jiang, Jun Du, Wei-Feng Ma, Hui Wang, Yu Qiu, Qiu-Gui Zhang, Wei Xu, Hui-Fang Liu, Hong-Sheng Wang, Jian-Ping Liang
Radiotherapy is the primary treatment for nasopharyngeal carcinoma (NPC). Patients with intermediate and advanced stage NPC receiving only radiotherapy have limited survival, so newer immunotherapeutic approaches are sought. The major impediment to better clinical outcomes is tumor immune tolerance. Indoleamine 2, 3-dioxygenase (IDO), an interferon-γ (IFNγ)-inducible enzyme, is a major inducer of immune tolerance during tumor development; therefore, inhibition of the IDO pathway is an important modality for cancer treatment...
December 6, 2016: Cancer Immunology Research
https://www.readbyqxmd.com/read/27919278/microrna-19b-3p-regulates-nasopharyngeal-carcinoma-radiosensitivity-by-targeting-tnfaip3-nf-%C3%AE%C2%BAb-axis
#3
Teng Huang, Li Yin, Jing Wu, Jia-Jia Gu, Jian-Zhong Wu, Dan Chen, Hong-Liang Yu, Kai Ding, Nan Zhang, Ming-Yu Du, Lu-Xi Qian, Zhi-Wei Lu, Xia He
BACKGROUND: Nasopharyngeal carcinoma (NPC) is among the most common squamous cell carcinoma in South China and Southeast Asia. Radiotherapy is the primary treatment for NPC. However, radioresistance acts as a significant factor that limits the efficacy of radiotherapy for NPC patients. Growing evidence supports that microRNAs (miRNAs) play an important role in radiation response. METHODS: Real-time quantitative PCR was used to analyze the expression of miR-19b-3p in NPC cell lines and NP69...
December 5, 2016: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/27918720/what-is-the-best-treatment-of-locally-advanced-nasopharyngeal-carcinoma-an-individual-patient-data-network-meta-analysis
#4
Laureen Ribassin-Majed, Sophie Marguet, Anne W M Lee, Wai Tong Ng, Jun Ma, Anthony T C Chan, Pei-Yu Huang, Guopei Zhu, Daniel T T Chua, Yong Chen, Hai-Qiang Mai, Dora L W Kwong, Shie-Lee Cheah, James Moon, Yuk Tung, Kwan-Hwa Chi, George Fountzilas, Jean Bourhis, Jean Pierre Pignon, Pierre Blanchard
Purpose The role of adjuvant chemotherapy (AC) or induction chemotherapy (IC) in the treatment of locally advanced nasopharyngeal carcinoma is controversial. The individual patient data from the Meta-Analysis of Chemotherapy in Nasopharynx Carcinoma database were used to compare all available treatments. Methods All randomized trials of radiotherapy (RT) with or without chemotherapy in nonmetastatic nasopharyngeal carcinoma were considered. Overall, 20 trials and 5,144 patients were included. Treatments were grouped into seven categories: RT alone (RT), IC followed by RT (IC-RT), RT followed by AC (RT-AC), IC followed by RT followed by AC (IC-RT-AC), concomitant chemoradiotherapy (CRT), IC followed by CRT (IC-CRT), and CRT followed by AC (CRT-AC)...
December 5, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/27916418/knockdown-of-tktl1-additively-complements-cisplatin-induced-cytotoxicity-in-nasopharyngeal-carcinoma-cells-by-regulating-the-levels-of-nadph-and-ribose-5-phosphate
#5
Yuke Dong, Ming Wang
BACKGROUND: Transketolase-like 1 (TKTL1) plays an important role in pentose phosphate pathway (PPP) branch, the main pathway generating nicotinamide adenine dinucleotide phosphate (NADPH) and nucleotides for DNA synthesis. TKTL1 is closely related to DNA damage and has a close relationship with incidence and progression of cancers. Cisplatin is the main chemotherapeutic drug by inducing DNA damage. Whether TKTL1 knockdown additively complements cisplatin-induced cytotoxicity in nasopharyngeal carcinoma cells, however, remains largely undefined...
December 1, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27906102/radiation-induced-osteosarcoma-of-the%C3%A2-skull-base-after-radiation-therapy-in-a-patient-with-nasopharyngeal-carcinoma-a%C3%A2-case-report-and-review-of-the%C3%A2-literature
#6
Yassine Echchikhi, Hasna Loughlimi, Asmae Touil, Tayeb Kebdani, Noureddine Benjaafar
BACKGROUND: Radiation-induced osteosarcomas are a recognized complication of radiation therapy. Owing to the fact that it is rare, publications on radiation-induced osteosarcoma of the skull base are limited to a small series and some case reports. CASE PRESENTATION: We describe a rare case of a patient with a skull base radiation-induced osteosarcoma treated 11 years before with ionizing radiation for an undifferentiated carcinoma of the nasopharynx. The patient was treated with chemotherapy alone, but he died after the third cycle...
December 1, 2016: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/27904660/comparison-of-mri-ct-and-18f-fdg-pet-ct-in-the-diagnosis-of-local-and-metastatic-of-nasopharyngeal-carcinomas-an-updated-meta-analysis-of-clinical-studies
#7
Wang-Sheng Chen, Jian-Jun Li, Lan Hong, Zeng-Bao Xing, Fen Wang, Chang-Qing Li
BACKGROUND: A meta-analysis was conducted to evaluate the accuracy of MRI, CT and FDG PET/CT in TNM stage of nasopharyngeal carcinoma patients (NPC). METHODS: Through a search of studies from 1996 to April 2015, pooled estimated sensitivity, specificity, pooled diagnostic odds ratio (DOR), summary receiver operating characteristic (SROC) curves and Q*-index were calculated. RESULTS: Totally 23 studies were included for analysis. In T stage, the pooled sensitivity, specificity, DOR and SROC of MRI were 0...
2016: American Journal of Translational Research
https://www.readbyqxmd.com/read/27902742/chloroquine-sensitizes-nasopharyngeal-carcinoma-cells-but-not-nasoepithelial-cells-to-irradiation-by-blocking-autophagy
#8
Anna Makowska, Michael Eble, Kirsten Prescher, Mareike Hoß, Udo Kontny
BACKGROUND: Treatment of nasopharyngeal carcinoma requires the application of high dosages of radiation, leading to severe long-term complications in the majority of patients. Sensitizing tumor cells to radiation could be a means to increase the therapeutic window of radiation. Nasopharyngeal carcinoma cells display alterations in autophagy and blockade of autophagy has been shown to sensitize them against chemotherapy. METHODS: We investigated the effect of chloroquine, a known inhibitor of autophagy, on sensitization against radiation-induced apoptosis in a panel of five nasopharyngeal carcinoma cell lines and a SV40-transformed nasoepithelial cell line...
2016: PloS One
https://www.readbyqxmd.com/read/27901642/a-generic-rna-pulsed-dc-based-approach-for-developing-therapeutic-intervention-against-nasopharyngeal-carcinoma
#9
Rajeev K Tyagi, Rajesh Parmar, Naisargee Patel
The recurrent nasopharyngeal carcinoma of head-and-neck cancers pathology showed unique symptoms and clinical characteristics. The complexity of pathology poses challenges for developing therapeutic interventional approaches against nasopharyngeal carcinoma (NPC). The conventional treatment regimens offer limited local control and survival, which, leads to adverse delayed complications. Our study present a generic monocyte derived dendritic cell (MoDC) vaccine strategy for NPC in which RNA is used as a source of tumor-associated antigens (TAAgs)...
November 30, 2016: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/27900042/antitumor-activity-of-7rh-a-discoidin-domain-receptor-1-inhibitor-alone-or-in-combination-with-dasatinib-exhibits-antitumor-effects-in-nasopharyngeal-carcinoma-cells
#10
Qiu-Ping Lu, Wen-Dan Chen, Jie-Ren Peng, Yao-Dong Xu, Qian Cai, Gong-Kan Feng, Ke Ding, Xiao-Feng Zhu, Zhong Guan
Dysregulation of the discoidin domain receptors (DDRs) has been implicated in the development of numerous types of tumors, including head and neck cancer, and nasopharyngeal, breast, ovarian and esophageal carcinomas. Furthermore, agents that inhibit DDR1 activity are hypothesized to be useful for the treatment of nasopharyngeal carcinoma (NPC). The aim of the present study was to evaluate the effect of the DDR1 inhibitory (3-(2-(pyrazolo(1,5-a)pyrimidin-6-yl)-ethynyl)benzamide compound, 7RH, in NPC cells both in vitro and in vivo, and its effect when used in combination with dasatinib, a SRC family kinase (SFK) inhibitor...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27898191/reirradiation-with-intensity-modulated-radiotherapy-for-locally-recurrent-t3-to-t4-nasopharyngeal-carcinoma
#11
Oscar S H Chan, Henry C K Sze, Michael C H Lee, Lucy L K Chan, Amy T Y Chang, Sarah W M Lee, Wai Man Hung, Anne W M Lee, Wai Tong Ng
BACKGROUND: The purpose of this study was to assess the efficacy and toxicities of reirradiation using intensity-modulated radiotherapy (IMRT) in patients with locally advanced recurrent nasopharyngeal carcinoma (NPC). METHODS: Thirty-eight patients with consecutive rT3 to rT4 NPC treated between 2005 and 2013 were retrospectively analyzed. RESULTS: The 3-year overall survival (OS), progression-free survival (PFS), and local control rate were 47...
November 29, 2016: Head & Neck
https://www.readbyqxmd.com/read/27895493/ct-diagnosed-severe-skull-base-bone-destruction-predicts-distant-bone-metastasis-in-early-n-stage-nasopharyngeal-carcinoma
#12
Wei Yi, Zhi-Gang Liu, Xian Li, Jiao Tang, Chang-Bin Jiang, Jing-Ye Hu, Zi-Wei Tu, Hui Wang, Dao-Li Niu, Yun-Fei Xia
Bone metastasis is the most frequent type of distant metastasis in nasopharyngeal carcinoma (NPC). In this study, we investigated the correlation between the skull base bone destruction and the distant bone metastasis in patients with NPC. A total of 449 cases with NPC who were diagnosed and had definitive radiotherapy from 2001 to 2006 were enrolled in this study. The skull base bone destruction was diagnosed by computed tomography (CT) in all cases, and 191 patients also underwent magnetic resonance imaging scan...
2016: OncoTargets and Therapy
https://www.readbyqxmd.com/read/27895477/noninvasive-monitoring-of-early-antiangiogenic-therapy-response-in-human-nasopharyngeal-carcinoma-xenograft-model-using-mri-with-rgd-conjugated-ultrasmall-superparamagnetic-iron-oxide-nanoparticles
#13
Yanfen Cui, Caiyuan Zhang, Ran Luo, Huanhuan Liu, Zhongyang Zhang, Tianyong Xu, Yong Zhang, Dengbin Wang
PURPOSE: Arginine-glycine-aspartic acid (RGD)-based nanoprobes allow specific imaging of integrin αvβ3, a protein overexpressed during angiogenesis. Therefore, this study applied a novel RGD-coupled, polyacrylic acid (PAA)-coated ultrasmall superparamagnetic iron oxide (USPIO) (referred to as RGD-PAA-USPIO) in order to detect tumor angiogenesis and assess the early response to antiangiogenic treatment in human nasopharyngeal carcinoma (NPC) xenograft model by magnetic resonance imaging (MRI)...
2016: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/27894100/investigation-of-long-term-survival-outcomes-and-failure-patterns-of-patients-with-nasopharyngeal-carcinoma-receiving-intensity-modulated-radiotherapy-a-retrospective-analysis
#14
Wei Zhao, Hao Lei, Xiaodong Zhu, Ling Li, Song Qu, Xia Liang
Intensity-modulated radiotherapy (IMRT) has replaced the conventional radiotherapy (2D-RT) and improved clinical efficacy in Nasopharyngeal Carcinoma (NPC) patients. In the present study, we retrospectively analyzed the clinical characteristics of patients with NPC treated with IMRT to assess the long-term survival outcomes and failure patterns. Of the 527 patients, One hundred and twenty-one patients experienced treatment failure, 86 patients developed distant metastases, and 12 patients developed a second primary tumor...
November 24, 2016: Oncotarget
https://www.readbyqxmd.com/read/27891591/nor1-suppresses-cancer-stem-like-cells-properties-of-tumor-cells-via-the-inhibition-of-the-akt-gsk-3%C3%AE-wnt-%C3%AE-catenin-aldh1a1-signal-circuit
#15
Wei Wang, Mei Yi, Shengnan Chen, Junjun Li, Haijing Zhang, Wei Xiong, Guiyuan Li, Xiaoling Li, Bo Xiang
Cancer stem cells (CSCs) play a key role in tumor radiotherapy and chemotherapy resistance, relapse, and metastasis, and are primarily maintained in a resting state in vivo. The failure of conventional therapies to target CSCs is the main cause of treatment failure. The discovery of CSCs in nasopharyngeal carcinoma (NPC) tumors is becoming more prevalent; however, the understanding of the mechanisms underlying the maintenance of tumor stemness is still limited. We previously cloned NOR1, a tumor suppressor gene downregulated in NPC cell lines and tissues...
November 27, 2016: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/27889776/cinnamic-acid-cinn-induces-apoptosis-and-proliferation-in-human-nasopharyngeal-carcinoma-cells
#16
Guangying Qi, Jian Chen, Changrong Shi, Yukun Wang, Sisi Mi, Wenhua Shao, Xiangyuan Yu, Yili Ma, Jiapu Ling, Jian Huang
BACKGROUND/AIMS: CINN is the main ingredient of the traditional Chinese medicine cinnamon. The purpose of the present study was to investigate the effects of CINN on the proliferation and apoptosis of NPC cells and to elucidate the underlying molecular mechanisms. MATERIALS AND METHODS: CNE2 human NPC cells were treated with various CINN concentrations. The effects of CINN on the proliferation and apoptosis of CNE2 NPC cells were examined using the MTT assay and flow cytometric analysis...
November 25, 2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27887636/development-and-validation-of-a-nomogram-for-predicting-the-survival-of-patients-with-non-metastatic-nasopharyngeal-carcinoma-after-curative-treatment
#17
Wenhua Liang, Guanzhu Shen, Yaxiong Zhang, Gang Chen, Xuan Wu, Yang Li, Anchuan Li, Shiyang Kang, Xi Yuan, Xue Hou, Peiyu Huang, Yan Huang, Hongyun Zhao, Ying Tian, Chong Zhao, Li Zhang
BACKGROUND: The TNM staging system is far from perfect in predicting the survival of individual cancer patients because only the gross anatomy is considered. The survival rates of the patients who have the same TNM stage disease vary across a wide spectrum. This study aimed to develop a nomogram that incorporates other clinicopathologic factors for predicting the overall survival (OS) of non-metastatic nasopharyngeal carcinoma (NPC) patients after curative treatments. METHODS: We retrospectively collected the clinical data of 1520 NPC patients who were diagnosed histologically between November 2000 and September 2003...
November 25, 2016: Chinese Journal of Cancer
https://www.readbyqxmd.com/read/27886062/microarray-expression-profiling-of-long-non-coding-rnas-involved-in-nasopharyngeal-carcinoma-metastasis
#18
Xin Wen, Xinran Tang, Yingqin Li, Xianyue Ren, Qingmei He, Xiaojing Yang, Jian Zhang, Yaqin Wang, Jun Ma, Na Liu
Increasing evidence has demonstrated a significant role for long non-coding RNAs (lncRNAs) in tumorigenesis. However, their functions in nasopharyngeal carcinoma (NPC) metastasis remain largely unknown. In this study, a model comparing high and low metastatic NPC cell lines (5-8F vs. 6-10B and S18 vs. S26) was constructed to determine the expression profile of lncRNAs using the microarray analysis, and we found 167 lncRNAs and 209 mRNAs were differentially expressed. Bioinformatic analysis indicated that the dysregulated mRNAs participated in important biological regulatory functions in NPC...
November 23, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27885853/nomogram-for-radiation-induced-hypothyroidism-prediction-in-nasopharyngeal-carcinoma-after-treatment
#19
Ren Luo, Mei Li, Zhining Yang, Yizhou Zhan, Baotian Huang, Jiayang Lu, Zhenxi Xu, Zhixiong Lin
OBJECTIVE: The aim of this study was to develop a nomogram for radiation-induced hypothyroidism (RHT) prediction. METHODS: We collected data from 164 NPC patients in our previous prospective study. Biochemical hypothyroidism (HT) was defined as a serum thyroid stimulating hormone (TSH) level greater than the normal value. We collected both clinical and dose-volume factors. A univariate Cox regression analysis was performed to identify RHT risk factors. Optimal predictors were selected according to the least absolute shrinkage and selection operator (LASSO)...
November 25, 2016: British Journal of Radiology
https://www.readbyqxmd.com/read/27884592/nasopharyngeal-carcinoma-with-mastoid-recurrence-after-concurrent-chemoradiotherapy-masquerading-as-acute-otomastoiditis
#20
Chih-Yu Hu, Shiang-Fu Huang, Wan-Ling Ho, Wen-Yu Chuang, Kai-Chieh Chan
Nasopharyngeal cancer (NPC) with mastoid recurrence is extraordinarily rare, and its development is thought to involve the Eustachian tube. We herein report a case of NPC with mastoid recurrence masquerading as acute otomastoiditis with facial paralysis in a 60-year-old man 44 months after concurrent chemoradiotherapy. The diagnosis was confirmed by exploratory tympanomastoidectomy with biopsy and Epstein-Barr-encoding region (EBER) in situ hybridization. Distant liver metastasis was detected simultaneously, and the patient underwent salvage treatment...
November 21, 2016: Auris, Nasus, Larynx
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