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Nasopharyngeal carcinoma

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https://www.readbyqxmd.com/read/29776390/development-of-a-normal-tissue-complication-probability-ntcp-model-for-radiation-induced-hypothyroidism-in-nasopharyngeal-carcinoma-patients
#1
Ren Luo, Vincent W C Wu, Binghui He, Xiaoying Gao, Zhenxi Xu, Dandan Wang, Zhining Yang, Mei Li, Zhixiong Lin
BACKGROUND: The objectives of this study were to build a normal tissue complication probability (NTCP) model of radiation-induced hypothyroidism (RHT) for nasopharyngeal carcinoma (NPC) patients and to compare it with other four published NTCP models to evaluate its efficacy. METHODS: Medical notes of 174 NPC patients after radiotherapy were reviewed. Biochemical hypothyroidism was defined as an elevated level of serum thyroid-stimulating hormone (TSH) value with a normal or decreased level of serum free thyroxine (fT4) after radiotherapy...
May 18, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29775749/a-novel-oncogene-urg4-urgcp-and-its-role-in-cancer
#2
REVIEW
Yavuz Dodurga, Mücahit Seçme, N Lale Şatıroğlu-Tufan
Oncogenes are mutated form of normal cellular genes called as proto-oncogenes and conduce to the cancer development process. Despite the fact that so many genes have been described, new genes with oncogenic characteristic and potential or tumor supressoring activity are still being defined. Recently, Up-regulated gene 4/Upregulator of cell proliferation (URG4/URGCP), a novel gene, induced by hepatitis-Bvirus-encoded X antigen (HBxAg), has been identified. URG4/URGCP gene was registered to the National Center for Biotechnology Information-GenBank (NCBI-GenBank, Entrez GeneID: 55665 and Entrez Nucleotide ID NM_017920)...
May 15, 2018: Gene
https://www.readbyqxmd.com/read/29774996/-study-of-gonadotropin-releasing-hormone-on-suppressing-migrationg-and-invationg-of-human-nasopharyngeal-carcinoma-cells-cne2
#3
Y H Sun, T T Kong, T T Wang, H F Zhu, T W Zhuang, D P Wang
Objective: The aim of this study is to investigate the effect of gonadotropin releasing hormone (GnRH) on suppressing cell viability, apoptosis, migrationg and invationg of human nasopharyngeal carcinoma cells CNE2. Method: Nasopharyngeal carcinoma tissues and postnasal catarrh tissues were collected, the expression of GnRH positive cells and GnRH mRNA were detected by immunohistochemical staining and qRT-PCR. The human nasopharyngeal carcinoma CNE2 cells and immortalized nasopharyngeal epithelial cell line NP69 were cultured in vitro, and the expression of GnRH positive cells and GnRH mRNA were detected by immunohistochemical staining and qRT-PCR...
June 5, 2017: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29771087/-expression-of-c-fos-in-nasopharyngeal-carcinoma-and-the-relationship-with-chemosensitivity-and-prognosis
#4
Y T Liu, F P Zhao, H B Miao, S Z Fu, S Zhou, X G Zhang, G Qin
Objective: To investigate the expression of C-fos in patients with nasopharyngeal carcinoma(NPC), and analyze the relationship between the expression of C-fos and the clinical characteristics, chemosensitivity and prognosis. Method: Clinical and follow-up data of 75 NPC patients was analyzed retrospectively. The expression of C-fos was detected by immunohistochemical assay, and chemosensitivity was detected by ATP bioluminescent anticancer drug sensitivity detection technology. The relationship between them was studied...
May 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29771085/-expression-patterns-and-prognostic-values-of-nrf2-and-keap1-in-nasopharyngeal-carcinoma
#5
X K Ma, J S Liu
Objective: To investigate the expression of Nrf2 and Keap1 in nasopharyngeal carcinoma (NPC) and to analyze the relationship between the expression of Nrf2 and Keap1 and the clinicopathological features and prognosis of patients with nasopharyngeal carcinoma. Method: A total of 108 patients with biopsy-proven nonkeratinizing squamous cell carcinoma-undifferentiated type with available biopsy specimens for tissue microarray (TMA) construction were selected. The relationship between Nrf2 and Keap1 protein expression and the prognosis of radiotherapy in patients with nasopharyngeal carcinoma was analyzed...
May 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29771049/-a-case-report-of-tracheotomy-complicated-by-hemorrhage-after-radical-operation-of-tongue
#6
M Y Sun, H J Wu
A 55-year old middle-aged male presented swelling lymph nodes in neck and mass in left tongue for three mouths. Physical examination shows a size 5 cm×5 cm mass in tongue and went over the midline. The mandibular lymph nodes were touched with moderate tenderness and little mobility in bilateral. The laboratory results, function of the kidney and heart liver, nasopharyngeal fiber area were basically normal. The result of CT and MRI shows the mass reached the lingual muscle layer and several suspected metastatic lymph nodes in neck...
May 20, 2017: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29771047/-effect-of-shrna-targeting-silencing-of-vtcn1-gene-on-nasopharyngeal-carcinoma-cells
#7
J Dong, T Peng, P Song, S C Yin, X H Zhou
Objective: The aim of this study is to investigate the expression of VTCN1 in nasopharyngeal carcinoma cells and targeting silencing of VTCN1 gene by infected with lentiviral vector to inhibit the proliferation and invasion in nasopharyngeal carcinoma cells. Method: The VTCN1 expression level of different nasopharyngeal carcinoma cells was detected by RT-PCR and Western blotting, the cell lines of the most expression level were seleted to conduct the Subsequent experiments; The lentiviral vector of silenced VTCN1 was transfected into HNE2 cells with VTCN1 expression by lipofectamine 2000, and stable cell lines were screened...
May 20, 2017: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29771040/-the-value-of-plasma-ebv-dna-testing-in-high-risk-group-of-nasopharyngeal-carcinoma-in-the-nasal-endoscopy
#8
X F He, X Yu, M F Ji, M Y Fu
Objective: The aim of this study is to evaluate the level of plasma EBV DNA and nasal endoscopy in high risk population of nasopharyngeal carcinoma, and to explore the value of EBV DNA testing in nasal endoscopy. Method: The nasopharyngeal carcinoma was screened in High-incidence Area of Zhongshan City. EBV antibody was detected by ELISA, and 427 patients with high risk of nasopharyngeal carcinoma were identified. In the high risk population the plasma EBV-DNA was measured using Fluorescent quantitative PCR, and all patients were used nasal endoscopy in the first two years...
May 20, 2017: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29769697/establishment-of-a-nasopharyngeal-carcinoma-cell-line-capable-of-undergoing-lytic-epstein-barr-virus-reactivation
#9
Yim Ling Yip, Weitao Lin, Wen Deng, Lin Jia, Kwok Wai Lo, Pierre Busson, Benjamin Vérillaud, Xuefeng Liu, Chi Man Tsang, Maria Li Lung, Sai Wah Tsao
Epstein-Barr virus (EBV) infects more than 90% of the adult human population. Undifferentiated nasopharyngeal carcinoma (NPC) is common in Southeast Asia, with a particularly high incidence among southern Chinese. The EBV genome can be detected in practically all cancer cells in undifferentiated NPC. The role of EBV in pathogenesis of undifferentiated NPC remains elusive. NPC cell lines are known to be difficult to establish in culture. The EBV+ve NPC cell lines, even if established in culture, rapidly lost their EBV episomes upon prolonged propagation...
May 16, 2018: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/29769101/a-new-strategy-for-volumetric-modulated-arc-therapy-planning-using-autoplanning-based-multicriteria-optimization-for-nasopharyngeal-carcinoma
#10
Juanqi Wang, Zhi Chen, Weiwei Li, Wei Qian, Xiaosheng Wang, Weigang Hu
BACKGROUND: A new strategy for making the appropriate choice of the representative optimization parameters in planning processes and accurate selection criteria during Pareto surface navigation for general multicriteria optimization (MCO) was recommended in the study. The purpose was to combine both benefits of AutoPlanning optimization and MCO (APMCO) for achieving an individual volumetric-modulated arc therapy (VMAT) plan according to the clinically achieved patient-specific tradeoff among conflicting priorities...
May 16, 2018: Radiation Oncology
https://www.readbyqxmd.com/read/29765376/immunization-with-fc-based-recombinant-epstein-barr-virus-gp350-elicits-potent-neutralizing-humoral-immune-response-in-a-balb-c-mice-model
#11
Bingchun Zhao, Xiao Zhang, Claude Krummenacher, Shuo Song, Ling Gao, Haojiong Zhang, Miao Xu, Lin Feng, Qisheng Feng, Musheng Zeng, Yuting Xu, Yixin Zeng
Epstein-Barr virus (EBV) was the first human virus proved to be closely associated with tumor development, such as lymphoma, nasopharyngeal carcinoma, and EBV-associated gastric carcinoma. Despite many efforts to develop prophylactic vaccines against EBV infection and diseases, no candidates have succeeded in effectively blocking EBV infection in clinical trials. Previous investigations showed that EBV gp350 plays a pivotal role in the infection of B-lymphocytes. Nevertheless, using monomeric gp350 proteins as antigens has not been effective in preventing infection...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29765233/patterns-of-local-failures-and-suggestions-for-reduction-of-clinical-target-volume-for-nasopharyngeal-carcinoma-patients-without-cervical-lymph-node-metastasis
#12
Yujiao Li, Xiaomin Ou, Chunying Shen, Tingting Xu, Weiwei Li, Chaosu Hu
Background: To demonstrate the robustness of clinical target volume delineation for nasopharyngeal carcinoma (NPC) patients, this study makes a detailed analysis of the initial irradiated dose of the recurrent site and local failure patterns after intensity-modulated radiation therapy (IMRT). Based on this analysis, further improvement of delineation recommendations may be made in order to improve the quality-of-life in NPC, without decreasing the local control and survival rate. Methods: In total, 382 newly diagnosed non-metastatic NPC patients were retrospectively enrolled, receiving elective neck irradiation to levels II, III, and VA...
2018: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29764509/ultrasound-guided-fine-needle-aspiration-of-retropharyngeal-lymph-nodes-after-radiotherapy-for-nasopharyngeal-carcinoma-a-novel-technique-for-accurate-diagnosis
#13
Long-Jun He, Chuanbo Xie, Yin Li, Lin-Na Luo, Ke Pan, Xiao-Yan Gao, Li-Zhi Liu, Jian-Ming Gao, Guang-Yu Luo, Hong-Bo Shan, Ming-Yuan Chen, Chong Zhao, Wei-Jun Fan, Ping Yang, Guo-Liang Xu, Jian-Jun Li
BACKGROUND: Enlarged retropharyngeal lymph nodes (RLNs) are very common in patients with nasopharyngeal carcinoma (NPC) undergoing radiotherapy. The most suitable treatment option for enlarged RLNs depends on the pathological results. However, RLN sampling is difficult and imminent in the clinic setting. We recently developed a novel minimally invasive technique termed endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) for sampling RLN tissues sufficient for pathological or cytological diagnosis...
May 9, 2018: Cancer communications
https://www.readbyqxmd.com/read/29764502/decreased-macrophage-inflammatory-protein-mip-1%C3%AE-and-mip-1%C3%AE-increase-the-risk-of-developing-nasopharyngeal-carcinoma
#14
Meng-Jie Yang, Jie Guo, Yan-Fang Ye, Sui-Hong Chen, Li-Xia Peng, Chu-Yang Lin, Ting Hu, Shang-Hang Xie, Chuan-Bo Xie, Qi-Hong Huang, Yu-Qiang Lu, Qing Liu, Chao-Nan Qian, Su-Mei Cao
BACKGROUND: The association of circulating inflammation markers with nasopharyngeal carcinoma (NPC) is still largely unclear. This study aimed to comprehensively explore the relationship between circulating cytokine levels and the subsequent risk of NPC with a two-stage epidemiologic study in southern China. METHODS: The serum levels of 33 inflammatory cytokines were first measured in a hospital-based case-control study (150 NPC patients and 150 controls) using multiplex assay platforms...
April 3, 2018: Cancer communications
https://www.readbyqxmd.com/read/29764493/nasopharyngeal-brushing-a-convenient-and-feasible-sampling-method-for-nucleic-acid-based-nasopharyngeal-carcinoma-research
#15
Pei-Fen Zhang, Xiao-Hui Zheng, Xi-Zhao Li, Tian Tian, Shao-Dan Zhang, Ye-Zhu Hu, Wei-Hua Jia
BACKGROUND: Tissue specimens for nasopharyngeal carcinoma (NPC) research are scarce because of sampling difficulties. Previous studies have suggested non-invasive nasopharyngeal brushing as an effective sampling method for NPC diagnosis. The present study aimed to evaluate the feasibility of nasopharyngeal brushing in the acquisition of NPC nucleic acids for research. METHODS: Nasopharyngeal brushing samples were acquired from 24 healthy individuals and 48 NPC patients...
April 12, 2018: Cancer communications
https://www.readbyqxmd.com/read/29764490/efficacy-of-the-hypoxia-activated-prodrug-evofosfamide-th-302-in-nasopharyngeal-carcinoma-in-vitro-and-in-vivo
#16
Yan Huang, Ying Tian, Yuanyuan Zhao, Cong Xue, Jianhua Zhan, Lin Liu, Xiaobo He, Li Zhang
BACKGROUND: Tumor hypoxia is considered an important factor in metastasis and disease relapse. Evofosfamide is a hypoxia-activated prodrug that selectively targets the hypoxic regions of solid tumors. As hypoxia-inducible factor-1α (HIF-1α) is overexpressed in nasopharyngeal carcinoma (NPC) tissues, we performed the present study to evaluate the efficacy profile of evofosfamide in NPC. METHODS: We evaluated the efficacy of evofosfamide as a single agent or combined with cisplatin (DDP) in the NPC cell lines CNE-2, HONE-1 and HNE-1, and in nude mouse xenograft tumor models...
May 3, 2018: Cancer communications
https://www.readbyqxmd.com/read/29764487/effect-of-induction-chemotherapy-with-cisplatin-fluorouracil-with-or-without-taxane-on-locoregionally-advanced-nasopharyngeal-carcinoma-a-retrospective-propensity-score-matched-analysis
#17
Guo-Ying Liu, Xing Lv, Yi-Shan Wu, Min-Jie Mao, Yan-Fang Ye, Ya-Hui Yu, Hu Liang, Jing Yang, Liang-Ru Ke, Wen-Ze Qiu, Xin-Jun Huang, Wang-Zhong Li, Xiang Guo, Yan-Qun Xiang, Wei-Xiong Xia
BACKGROUND: Available data in the literature comparing different induction chemotherapy (IC) regimens on locoregionally advanced nasopharyngeal carcinoma (NPC) are scarce. The purpose of the present study was to evaluate the outcomes of locoregionally advanced NPC patients who were treated with taxane, cisplatin and 5-fluorouracil (TPF) or cisplatin and 5-fluorouracil (PF) as IC followed by concurrent chemoradiotherapy (CCRT). METHODS: In total, 1879 patients with locoregionally advanced NPC treated with IC and CCRT from a prospectively maintained database were included in the present observational study...
May 10, 2018: Cancer communications
https://www.readbyqxmd.com/read/29764469/chibby-suppresses-aerobic-glycolysis-and-proliferation-of-nasopharyngeal-carcinoma-via-the-wnt-%C3%AE-catenin-lin28-let7-pdk1-cascade
#18
Cheng-Fu Cai, Guo-Dong Ye, Dong-Yan Shen, Wei Zhang, Mao-Li Chen, Xin-Xin Chen, Da-Xiong Han, Yan-Jun Mi, Qi-Cong Luo, Wang-Yu Cai, Shu-Yu Yang
BACKGROUND: Great progress has been achieved in the study of the aerobic glycolysis or the so-called Warburg effect in a variety of cancers; however, the regulation of the Warburg effect in Nasopharyngeal carcinoma (NPC) has not been completely defined. METHODS: Gene expression pattern of NPC cells were used to test associations between Chibby and β-catenin expression. Chibby siRNAs and over-expression vector were transfected into NPC cells to down-regulate or up-regulate Chibby expression...
May 15, 2018: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/29764160/combinatorial-strategies-of-radiotherapy-and-immunotherapy-in-nasopharyngeal-carcinoma
#19
Eugenia L L Yeo, You Quan Li, Khee-Chee Soo, Joseph T S Wee, Melvin L K Chua
Immunotherapy and radiation therapy (RT) have each demonstrated clinical success in the treatment of nasopharyngeal carcinoma (NPC) when utilized independently. Several characteristics of NPC make it particularly well suited for immunotherapeutic strategies, such as the association with viral infections like EBV and human papilloma virus (HPV), upregulation of PD-L1 expression, and the high number of tumor infiltrating lymphocytes. Immune checkpoint blockade is one such immunotherapeutic strategy that is gaining popularity rapidly...
April 2018: Chinese Clinical Oncology
https://www.readbyqxmd.com/read/29764118/longitudinal-assessment-of-intravoxel-incoherent-motion-diffusion-weighted-imaging-in-evaluating-the-radio-sensitivity-of-nasopharyngeal-carcinoma-treated-with-intensity-modulated-radiation-therapy
#20
Youping Xiao, Ying Chen, Yunbin Chen, Zhuangzhen He, Yiqi Yao, Jianji Pan
Purpose: Intravoxel incoherent motion diffusion-weighted imaging (IVIM-DWI) was evaluated regarding its ability to preliminarily predict the short-term treatment response of nasopharyngeal carcinoma (NPC) following intensity-modulated radiation therapy. Methods: IVIM-DWI with 14 b-factors (0-1,000 s/mm2) was performed with a 3T MR system on 47 consecutive NPCs before, during (end of the 5th, 10th, 15th, 20th, and 25th fractions), and after fractional radiotherapy...
May 14, 2018: Cancer Research and Treatment: Official Journal of Korean Cancer Association
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