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https://www.readbyqxmd.com/read/28454461/prognostic-value-of-mlh1-promoter-methylation-in-male-patients-with-esophageal-squamous-cell-carcinoma
#1
Dongping Wu, Xiaoying Chen, Yan Xu, Haiyong Wang, Guangmao Yu, Luping Jiang, Qingxiao Hong, Shiwei Duan
The DNA mismatch repair (MMR) gene MutL homolog 1 (MLH1) is critical for the maintenance of genomic integrity. Methylation of the MLH1 gene promoter was identified as a prognostic marker for numerous types of cancer including glioblastoma, colorectal, ovarian and gastric cancer. The present study aimed to determine whether MLH1 promoter methylation was associated with survival in male patients with esophageal squamous cell carcinoma (ESCC). Formalin-fixed, paraffin-embedded ESCC tissues were collected from 87 male patients...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454425/whole-body-low-dose-computed-tomography-in-multiple-myeloma-staging-superior-diagnostic-performance-in-the-detection-of-bone-lesions-vertebral-compression-fractures-rib-fractures-and-extraskeletal-findings-compared-to-radiography-with-similar-radiation-exposure
#2
Lukas Lambert, Petr Ourednicek, Zuzana Meckova, Giampaolo Gavelli, Jan Straub, Ivan Spicka
The primary objective of the present prospective study was to compare the diagnostic performance of conventional radiography (CR) and whole-body low-dose computed tomography (WBLDCT) with a comparable radiation dose reconstructed using hybrid iterative reconstruction technique, in terms of the detection of bone lesions, skeletal fractures, vertebral compressions and extraskeletal findings. The secondary objective was to evaluate lesion attenuation in relation to its size. A total of 74 patients underwent same-day skeletal survey by CR and WBLDCT...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454422/the-role-of-mrp1-in-the-multidrug-resistance-of-colorectal-cancer
#3
Dongxing Cao, Shaolan Qin, Yifei Mu, Ming Zhong
The role of multidrug resistance associated protein 1 (MRP1) in the multidrug resistance (MDR) of colorectal cancer (CRC) remains unclear. The present study aimed to investigate the effect of MRP1 in MDR CRC and its therapeutic potential for the treatment of patients with this disease. The human MDR CRC cell lines HCT-8 and Colo205 were established through stable exposure to 5-florouracil (5-FU) over a 5-month period. MRP1 was knocked-down in MDR CRC cells through the transfection of short hairpin RNA targeting MRP1 (shMRP1)...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454419/neutrophil-lymphocyte-ratio-predicts-survival-in-pancreatic-neuroendocrine-tumors
#4
Guopei Luo, Chen Liu, He Cheng, Kaizhou Jin, Meng Guo, Yu Lu, Jiang Long, Jin Xu, Quanxing Ni, Jie Chen, Xianjun Yu
Although the prognostic role of neutrophil-lymphocyte ratio (NLR) has been confirmed in a variety of tumors, the prognostic role of NLR in pancreatic neuroendocrine tumors (PNETs) has not been examined. The present study was performed to assess the role of NLR as a prognostic factor in patients with PNETs. Clinical data were retrospectively retrieved from a single institution. The best cut-off value for baseline NLR levels was determined by the receiver operating characteristic (ROC) curve and area under the ROC curve...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454417/mir-185-enhances-the-inhibition-of-proliferation-and-migration-induced-by-ionizing-radiation-in-melanoma
#5
Jinpeng He, Ning Tian, Yanli Yang, Liangliang Jin, Xiu Feng, Junrui Hua, Sulan Lin, Bing Wang, He Li, Jufang Wang
Melanoma is an aggressive malignancy that is increasingly common and exhibits a poor patient survival rate. Radiotherapy is the primary option for patients with melanoma, particularly those who are not candidates for surgery; however, the therapeutic effect is limited due to the relative radioresistance of melanoma to ionizing radiation (IR). It has been reported that microRNAs (miRNAs) serve a vital role in determining the radiosensitivity of tumors; however, little is known concerning the radiosensitization of melanoma using miRNA...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454405/expression-of-b-cell-translocation-gene-2-is-associated-with-favorable-prognosis-in-hepatocellular-carcinoma-patients-and-sensitizes-irradiation-induced-hepatocellular-carcinoma-cell-apoptosis-in-vitro-and-in-nude-mice
#6
Yuanyuan Chen, Chuan Chen, Zhimin Zhang, He Xiao, Bijing Mao, Huan Huang, Chenchen Ding, Lin Lei, Hui Zhang, Jian Li, Mei Jiang, Ge Wang
B-cell translocation gene 2 (BTG2) proteins have been reported to be putative tumor suppressors in various cancer types. The present study first assessed BTG2 expression in 44 human liver cancer tissue specimens, then investigated BTG2 expression in the regulation of hepatocellular carcinoma (HCC) cell apoptosis with or without radiotherapy in vitro and in vivo. The results revealed that BTG2 protein expression was significantly reduced in HCC tissues, and associated with better survival for HCC patients (P=0...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454404/correlation-between-epidermal-growth-factor-receptor-mutations-and-the-expression-of-estrogen-receptor-%C3%AE-in-advanced-non-small-cell-lung-cancer
#7
Fang Deng, Ming Li, Wu-Lin Shan, Li-Ting Qian, Shui-Ping Meng, Xiao-Lei Zhang, Bao-Long Wang
Epidermal growth factor receptor (EGFR) mutations are more common in non-small cell lung cancer (NSCLC) and in female patients of East Asian origin. Therefore, the present study investigated the presence of EGFR mutations in advanced NSCLC, and assessed its correlation with clinicopathologic factors, including the expression of estrogen receptor-β (ER-β) and patient prognosis. The present study performed a retrospective analysis of 83 patients with stage IIIB-IV NSCLC. The expression of ER-β and p53 were examined using immunohistochemical methods...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454394/variation-and-significance-of-secretory-immunoglobulin-a-interleukin-6-and-dendritic-cells-in-oral-cancer
#8
Suxin Zhang, Xin Zhang, Ke Yin, Tianke Li, Yang Bao, Zhong Chen
The present study aimed to determine changes in the concentration of secretory immunoglobulin A (SIgA) and interleukin 6 (IL-6) in the saliva of patients with oral cancer, to evaluate the abnormal expression of cluster of differentiation (CD) 1a, CD83, CD80 and CD86 on dendritic cells (DCs) of oral cancer tissues and to discuss the interaction between SIgA, IL-6 and DCs in oral cancer. A total of 40 patients between 27 and 70 years of age, median age 52 years, with primary oral cancer were enrolled in the present study, and a group of 20 healthy male and female volunteers was used as the control group...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454377/frequent-expression-of-human-leukocyte-antigen-class-i-and-the-status-of-intratumoral-immune-cells-in-alveolar-soft-part-sarcoma
#9
Akira Ogose, Hiroyuki Kawashima, Tetsuo Hotta, Takashi Ariizumi, Tetsuro Yamagishi, Naoki Oike, Taro Sasaki, Hiroshi Hatano, Hajime Umezu, Naoto Endo
The prognosis of alveolar soft part sarcoma is poor, despite the slow growth of the tumor. A number of cases with spontaneous regression of this rare tumor have been reported. Although the mechanisms underlying spontaneous regression remain uncertain, local immune reaction may be a possible contributing factor. Immunohistochemical expression of human leukocyte antigen (HLA) class I, cluster of differentiation (CD) 3, CD4, CD8, CD20, CD45, CD56, CD68, CD138 and CD163 were assessed in a series of 10 alveolar soft part sarcomas, and the expression profiles were associated with patients' clinicopathological parameters...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454376/expression-and-function-of-mutt-homolog-1-in-distinct-subtypes-of-breast-cancer
#10
Xiaohui Zhang, Wei Song, Yidong Zhou, Feng Mao, Yan Lin, Jinghong Guan, Qiang Sun
Human MutT homolog 1 (MTH1) detoxifies the oxidized DNA precursor 8-oxo-2'-deoxyguanosine-5'-triphosphate and serves a tumor suppressive role in distinct types of cancer. In the present study, the expression of MTH1 was examined in various subtypes of breast cancer, and the effect of its suppression on breast cancer growth was characterized in vitro and in vivo. MTH1 mRNA and protein levels were assessed using the reverse transcription-quantitative polymerase chain reaction and immunohistochemistry. The effect of MTH1 expression on the proliferation of breast cancer cells was investigated in vitro using Cell Counting Kit-8 and colony formation assays, and in vivo using breast cancer cell line xenografts in mice...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454358/prognostic-relevance-of-dna-flow-cytometry-in-breast-cancer-revisited-the-25-year-experience-of-the-portuguese-institute-of-oncology-of-lisbon
#11
António E Pinto, Teresa Pereira, Giovani L Silva, Saudade André
The potential prognostic significance of DNA flow cytometric measurements (DNA ploidy and S-phase fraction) in breast cancer remains in dispute. Inconclusive data, primarily due to the lack of consistent standardization and quality control programs, have limited its translation into clinical practice. The aim of the present review, based on the 25-year experience of the Portuguese Institute of Oncology of Lisbon, is to assess the clinical relevance and application of DNA flow cytometry for the prognosis of breast cancer...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454352/analysis-of-circulating-adipokines-in-patients-newly-diagnosed-with-solid-cancer-associations-with-measures-of-adiposity-and-tumor-characteristics
#12
Nehad Ayoub, Mohammad Alkhatatbeh, Malak Jibreel, Mera Ababneh
The development and progression of cancer is a complex and multifactorial process and the global prevalence of obesity is markedly increasing. A number of studies have made an association between obesity and increased rates of epithelial tumors. Obesity is associated with altered adipokine levels, potentially contributing to the process of tumor development and metastasis. In the current study, the associations between circulating adipokines and measures of adiposity and tumor characteristics among patients diagnosed with solid malignancies were examined at the time of presentation, and following the administration of chemotherapy...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454331/centrosome-amplification-in-chondrosarcomas-a-primary-cell-culture-and-cryopreserved-tumor-sample-study
#13
Carla Aparecida Pinheiro, Iberê Cauduro Soares, Valter Penna, Jeremy Squire, Rui Manuel Vieira Reis, Sandra Regina Morini da Silva, Isabela de Carvalho, Marjori Leiva Camparoto, Maicon Fernando Zanon da Silva, Adhemar Longatto Longatto Filho
The genetics background underlying the aggressiveness of chondrosarcoma (CS) is poorly understood. One possible cause of malignant transformation is chromosomal instability, which involves an error in mitotic segregation due to numerical and/or functional abnormalities of centrosomes. The present study aimed to evaluate centrosome amplification in cryopreserved samples of tumor tissue from patients with CS. An analysis was performed on 3 primary cultures of tumors from patients who underwent surgery between January 2012 and December 2012 at the Department of Orthopedics at the Barretos Cancer Hospital (Barretos, Brazil)...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454329/overexpression-of-heat-shock-factor-1-is-associated-with-a-poor-prognosis-in-esophageal-squamous-cell-carcinoma
#14
Yukiko Tsukao, Makoto Yamasaki, Yasuhiro Miyazaki, Tomoki Makino, Tsuyoshi Takahashi, Yukinori Kurokawa, Hiroshi Miyata, Kiyokazu Nakajima, Shuji Takiguchi, Koshi Mimori, Masaki Mori, Yuichiro Doki
Heat-shock factor 1 (HSF1) is the primary regulator of the response to various stressors. A previous study showed that HSF1 expression is associated with a poor prognosis in breast cancer and hepatocellular carcinoma; however, the prognostic significance of HSF1 in esophageal squamous cell carcinoma (ESCC) is unknown. Therefore, the present study investigated the association between HSF1 expression and the clinicopathological parameters of patients, as well as the association between HSF1 expression, and heat shock protein (Hsp)27, Hsp70 and Hsp90 expression induced by HSF1, by cDNA microarray and immunohistochemistry analyses...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454267/characteristics-and-outcome-of-laryngeal-squamous-cell-carcinoma-in-young-adults
#15
Yuval Nachalon, Ohad Cohen, Uri Alkan, Jacob Shvero, Aron Popovtzer
Laryngeal carcinoma rarely occurs in the young adult population. Therefore, the optimal treatment for this age group is unclear, specifically regarding organ preservation treatment. In order to assess the distinct characteristics of laryngeal squamous cell carcinoma (SCC) in young adults and describe the effect of treatment on survival, a retrospective chart review of all patients aged <40 years, who were treated in a tertiary referral center for laryngeal SCC between January 1960 and December 2013, was performed...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454266/microrna-146a-affects-the-chemotherapeutic-sensitivity-and-prognosis-of-advanced-gastric-cancer-through-the-regulation-of-lin52
#16
Zhifen Luo, Xiqing Li, Zunlan Zhao, Xinglong Yang, Shengjun Xiao, Yun Zhou
The present study aimed to evaluate the correlation between the expression of microRNA-146a (miR-146a) and its target gene, LIN52, in advanced gastric cancer, and determine their potential effects on chemotherapeutic sensitivity and prognosis. Total RNA was extracted from 93 tissue samples of advanced gastric cancer and corresponding adjacent non-tumor tissues to quantify the relative expression levels of miR-146a using reverse transcription-quantitative polymerase chain reaction analysis. The expression of LIN52 was detected in tumors and normal tissues using immunohistochemical analysis...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454264/luteolin-a-novel-p90-ribosomal-s6-kinase-inhibitor-suppresses-proliferation-and-migration-in-leukemia-cells
#17
Lan Deng, Ling Jiang, Xianghua Lin, Kuo-Fu Tseng, Zhigang Lu, Xiuju Wang
Ribosomal S6 kinases (RSKs) are directly regulated by extracellular signal-regulated kinase (ERK) signaling and are implicated in cell growth, survival, motility and senescence. The present study observed that RSK1 was overexpressed in primary untreated leukemia patient bone marrow samples compared with the expression at the complete remission stage, using reverse transcription-quantitative polymerase chain reaction (RT-qPCR). In addition, a high RSK1 expression (relative expression ≥10) was associated with a significantly shorter overall survival (P=0...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454262/aberrant-klk4-gene-promoter-hypomethylation-in-pediatric-hepatoblastomas
#18
Baihui Liu, Ximao Cui, Shan Zheng, Kuiran Dong, Rui Dong
DNA methylation has a crucial role in cancer biology and has been recognized as an activator of oncogenes and inactivator of tumor suppressor genes, both of which are mechanisms for tumorigenesis. Kallikrein-related peptidase 4 (KLK4), has been suggested to be an oncogene in various types of cancer. The aim of the present study was to assess the DNA methylation patterns of the KLK4 gene in cancerous samples harvested from patients with hepatoblastoma (HB). KLK4 mRNA expression levels were detected using reverse transcription-quantitative polymerase chain reaction and assessed its DNA methylation patterns using high-throughput mass spectrometry on a matrix-assisted laser desorption/ionization time-of-flight mass array...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454255/mir-219-5p-suppresses-the-proliferation-and-invasion-of-colorectal-cancer-cells-by-targeting-calcyphosin
#19
Quhui Wang, Lirong Zhu, Yasu Jiang, Junfei Xu, Feiran Wang, Zhixian He
MicroRNAs (miRNAs) are small non-coding RNAs involved in an array of biological processes, and their dysregulation is associated with tumor development and progression. One such miRNA, miR-219-5p, is abnormally expressed in patients with colorectal cancer (CRC). In the present study, reverse transcription-quantitative polymerase chain reaction was performed to measure miR-219-5p expression in cells from both CRC tumors, and surrounding healthy tissue. MTT and invasion assays were used to determine the role of miR-219-5p in regulating CRC cell proliferation and invasion, respectively...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454249/six1-expression-is-associated-with-a-poor-prognosis-in-patients-with-glioma
#20
Xiaojun Zhang, Ruxiang Xu
Glioma is the most common human brain cancer and has poor prognosis. Messenger RNA profiling identified that sineoculis homeobox homolog 1 (Six1) is dysregulated in glioma tumor progenitor cells from glial progenitor cells isolated from normal white matter. However, the expression and role of Six1 in glioma remains unclear. The purpose of the present study was to investigate the expression level of Six1 in glioma tissues and the association between Six1 expression and clinicopathological characteristics and prognosis of gliomas...
March 2017: Oncology Letters
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