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Oncology Letters

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https://www.readbyqxmd.com/read/28989538/erratum-efficacy-and-tolerability-of-lacosamide-for-secondary-epileptic-seizures-in-patients-with-brain-tumor-a-multicenter-observational-retrospective-study
#1
Juan Manuel Sepúlveda-Sánchez, Antonio Conde-Moreno, Manuel Barón, Javier Pardo, Gaspar Reynés, Antonio Belenguer
[This corrects the article DOI: 10.3892/ol.2017.5988.].
October 2017: Oncology Letters
https://www.readbyqxmd.com/read/28989537/effect-of-inhibiting-beclin-1-expression-on-autophagy-proliferation-and-apoptosis-in-colorectal-cancer
#2
Lin Liu, Wei-Min Zhao, Xin-Hui Yang, Zhen-Qiang Sun, Hui-Zhen Jin, Cheng Lei, Bo Jin, Hai-Jiang Wang
The present study aimed to investigate the molecular mechanisms and effect of Beclin-1 on autophagy, proliferation and apoptosis in the colorectal cancer (CRC) HCT116 and SW620 cells. Beclin-1 was silenced by RNA interference (RNAi) in HTC116 and SW620 cells. Reverse transcription-polymerase chain reaction and western blot were used to measure the expression of Beclin-1. The percentage of apoptotic cells was analyzed by cell counting kit-8 (CCK-8) and flow cytometry (FCM). Cell cycle and cell proliferation were analyzed by FCM and the MTT assay...
October 2017: Oncology Letters
https://www.readbyqxmd.com/read/28989536/mechanisms-of-inhibiting-human-leukemia-cell-lines-by-serum-of-rats-treated-with-compound-banmao-capsule
#3
Li Li, Lixia Zhu, Jingjing Zhu, Xiaofen Fan, Xiujin Ye
Compound banmao capsule (CBC) is a traditional Chinese medicinal formula composed of extracts from 11 organisms. The present study investigated the mechanism of CBC on the biological behavior of human leukemia cell lines using seropharmacological methods. CBC-containing rat serum was prepared by intragastrical administration of CBC to rats. The proliferation of human leukemia HL60 and K562 cell lines was assayed by measuring cell viability with the 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium method, while cell cycle distribution and the rate of apoptosis were evaluated with flow cytometry...
October 2017: Oncology Letters
https://www.readbyqxmd.com/read/28989535/investigating-the-microrna-mrna-regulatory-network-in-acute-myeloid-leukemia
#4
Haiguo Zhang, Chengfang Zhang, Rui Feng, Haixia Zhang, Min Gao, Ling Ye
Acute myeloid leukemia (AML) is a common myelogenous malignancy in adults that is often characterized by disease relapse. The pathophysiological mechanism of AML has not yet been elucidated. The present study aimed to identify the crucial microRNAs (miRNAs/miRs) and target genes in AML, and to uncover the potential oncogenic mechanism of AML. miRNA and mRNA expression-profiling microarray datasets were downloaded from the Gene Expression Omnibus database. Differential expression analysis was performed and a regulatory network between miRNAs and target genes was constructed...
October 2017: Oncology Letters
https://www.readbyqxmd.com/read/28989534/activation-of-janus-kinase-1-confers-poor-prognosis-in-patients-with-non-small-cell-lung-cancer
#5
Dan Liu, Yi Huang, Li Zhang, Dong-Ni Liang, Li Li
The activation of Janus kinase 1 (JAK1) has been reported to occur in non-small cell lung cancer (NSCLC), activating the JAK/signal transducers and activators of transcription cascade. However, the association between JAK1 activation and the prognostic value in NSCLC remains unclear. The present study initially investigated the association between expression of the activated form of JAK1 (p-JAK1) and prognosis in patients with NSCLC. A cohort of 142 resected primary NSCLC tissue samples, including 74 adenocarcinoma (ADCC) and 68 squamous cell carcinoma samples, were analyzed...
October 2017: Oncology Letters
https://www.readbyqxmd.com/read/28959367/elacridar-a-third-generation-abcb1-inhibitor-overcomes-resistance-to-docetaxel-in-non-small-cell-lung-cancer
#6
Haiyang Chen, Kazuhiko Shien, Ken Suzawa, Kazunori Tsukuda, Shuta Tomida, Hiroki Sato, Hidejiro Torigoe, Mototsugu Watanabe, Kei Namba, Hiromasa Yamamoto, Junichi Soh, Hiroaki Asano, Shinichiro Miyoshi, Shinichi Toyooka
Docetaxel is a third-generation chemotherapeutic drug that is widely used in the treatment of patients with non-small cell lung cancer (NSCLC). However, the majority of patients with NSCLC eventually acquire resistance to the treatment. In the present study, the mechanism of acquired resistance to docetaxel treatment in lung cancer cells was investigated. The three NSCLC cell lines, H1299 with wild-type epidermal growth factor receptor (EGFR), EGFR-mutant HCC4006 and HCC827, and experimentally established docetaxel-resistant (DR) cells, H1299-DR, HCC827-DR, and HCC4006-DR were used with stepwise increases in concentrations of docetaxel...
October 2017: Oncology Letters
https://www.readbyqxmd.com/read/28959366/mode-of-action-of-pertuzumab-in-combination-with-trastuzumab-plus-docetaxel-therapy-in-a-her2-positive-breast-cancer-xenograft-model
#7
Yoriko Yamashita-Kashima, Sei Shu, Keigo Yorozu, Yoichiro Moriya, Naoki Harada
In a Phase III trial for HER2-positive breast cancer (the CLEOPATRA study), the triple-drug combination arm of pertuzumab plus trastuzumab plus docetaxel showed significantly longer progression-free survival and overall survival than did the trastuzumab plus docetaxel arm. In this study, we investigated the mechanism of action of the triple-drug combination therapy in vivo. For this purpose, we established a mouse xenograft model using KPL-4, a HER2-positive human breast cancer cell line, in which the triple-drug combination treatment dramatically induced tumor regression compared with double-drug combinations (trastuzumab plus docetaxel, pertuzumab plus docetaxel, or pertuzumab plus trastuzumab)...
October 2017: Oncology Letters
https://www.readbyqxmd.com/read/28959365/intensity-modulated-radiotherapy-combined-with-iodine-125-seed-implantation-in-non-central-recurrence-of-cervical-cancer-a-case-report-and-literature-review
#8
Hu Feng, Yuanyuan Hu, Peng Jin, Xiangkuan Meng, Yubing Chen, Hongmei Zhang
Recurrent cervical cancer is a clinically complex disease that is difficult to treat. There are numerous treatment options, but the results achieved by each are poor. External-beam radiation therapy of the pelvic lymph drainage area, in combination with intracavitary afterloading or the interstitial implantation of a radiation source (i.e., brachytherapy), are the current standard radiotherapy regimens used in high-risk clinical targets. However, there are few reports concerning the use of iodine-125 ((125)I) seed implantation brachytherapy in recurrent cervical cancer, and the effects of treatment and adverse reactions have not yet been systematically evaluated...
October 2017: Oncology Letters
https://www.readbyqxmd.com/read/28959364/long-non-coding-rna-meg3-inhibits-the-proliferation-and-metastasis-of-oral-squamous-cell-carcinoma-by-regulating-the-wnt-%C3%AE-catenin-signaling-pathway
#9
Zongxiang Liu, Cui Wu, Nina Xie, Penglai Wang
This study aimed to investigate how long non-coding RNA (lncRNA) maternally expressed gene 3 (MEG3) inhibits the growth and metastasis of oral squamous cell carcinoma (OSCC) by regulating WNT/β-catenin signaling pathway in order to explore the antitumor effect of MEG3 and to provide a potential molecular target for the treatment of OSCC. The RT-qPCR technique was used to quantitatively analyze the expression of MEG3 in cancer and adjacent tissues collected from the patients after surgery. Using the Lipofectamine method, the MEG3 overexpression vector and the siRNA interference vector were constructed and transfected into SCC15 and Cal27 cells, respectively, followed by cell proliferation, apoptosis and metastasis analyses...
October 2017: Oncology Letters
https://www.readbyqxmd.com/read/28959363/relationship-of-the-expression-levels-of-xiap-and-p53-genes-in-hepatocellular-carcinoma-and-the-prognosis-of-patients
#10
Zhiqin Li, Chunfang Han, Jing Feng
In this study, we measured mRNA and protein expression levels of X-linked inhibitor of apoptosis protein (XIAP) and p53 in hepatocellular carcinoma (HCC) and analyzed their relationships to clinicopathological parameters and the prognosis of the patients. Samples were obtained from tumors and tumor-adjacent normal tissues from 70 patients with HCC who were hospitalized in Weifang People's Hospital from January 2009 to December 2011. Quantitative polymerase chain reaction (qPCR) and immunohistochemistry (IHC) were used to detect the mRNA and protein expression levels, respectively...
October 2017: Oncology Letters
https://www.readbyqxmd.com/read/28959362/inhibition-of-hes1-enhances-lapatinib-sensitivity-in-gastric-cancer-sphere-forming-cells
#11
Luchun Li, Yan Li, Lulu Wang, Zhijuan Wu, Huiwen Ma, Jianghe Shao, Dairong Li, Huiqing Yu, Weiqi Nian, Donglin Wang
It has been considered that the neurogenic locus notch homolog protein (Notch) signaling pathway serves an essential role in cellular differentiation, proliferation and apoptosis. However, the function of the Notch signaling pathway in gastric cancer stem cells (GCSCs) and epidermal growth factor receptor-tyrosine kinase inhibitor (EGFR-TKI) sensitivity remains unclear. The present study aimed to delineate the role of the Notch1 signaling pathway in GCSCs and lapatinib sensitivity. Sphere-forming cells were separated from human gastric cancer MKN45 parental cells...
October 2017: Oncology Letters
https://www.readbyqxmd.com/read/28959361/effect-of-etoposide-induced-alteration-of-the-mdm2-rb-signaling-pathway-on-cellular-senescence-in-a549-lung-adenocarcinoma-cells
#12
Wenjing Dai, Yi Jiang, Kairong Chen, Jing Qiu, Jian Sun, Wei Zhang, Xiafei Zhou, Na Huang, Yunhui Li, Wancheng Li
The present study aimed to investigate the effect of various concentrations of etoposide (VP-16) on the E3 ubiquitin-protein ligase Mdm2 (Mdm2)-retinoblastoma (Rb) signaling pathway in the cellular senescence of A549 lung adenocarcinoma cells. A549 cells were randomly divided into the following four groups: Control group (no treatment), group 1 (1 µmol/l VP-16), group 2 (5 µmol/l VP-16) and group 3 (25 µmol/l VP-16). Each group was cultured for 48 h after treatment prior to observation of the alterations to cellular morphology...
October 2017: Oncology Letters
https://www.readbyqxmd.com/read/28959360/role-of-wild-type-p53-induced-phosphatase-1-in-cancer
#13
Zhi-Peng Wang, Ye Tian, Jun Lin
Wild-type p53-induced phosphatase (Wip1) is a member of the protein phosphatase type 2C family and is an established oncogene due to its dephosphorylation of several tumor suppressors and negative control of the DNA damage response system. It has been reported to dephosphorylate p53, ataxia telangiectasia mutated, checkpoint kinase 1 and p38 mitogen activated protein kinases, forming negative feedback loops to inhibit apoptosis and cell cycle arrest. Wip1 serves a major role in tumorigenesis, progression, invasion, distant metastasis and apoptosis in various types of human cancer...
October 2017: Oncology Letters
https://www.readbyqxmd.com/read/28943968/high-excision-repair-cross-complementation-group-1-expression-is-associated-with-favorable-prognostic-factors-in-breast-cancer
#14
Dong Hyun Kim, Hyunjoo Lee, Dong-Hoon Kim, Seoung Wan Chae, Jin Hee Sohn, Kyungeun Kim, Sung-Im Do
Distortion of DNA can inhibit transcription and replication, resulting in cell death. The nucleotide excision repair (NER) pathway recognizes and repairs DNA adducts. Excision repair cross-complementation group 1 (ERCC1) is a nuclease that serves a vital role in the NER pathway. Few studies have investigated ERCC1 expression in breast cancer. The aim of the present study was to analyze the association between clinicopathological features and ERCC1 expression in breast cancer. ERCC1 expression was studied in 224 invasive ductal carcinomas by immunohistochemical staining...
October 2017: Oncology Letters
https://www.readbyqxmd.com/read/28943967/kr%C3%A3-ppel-like-factor-8-induces-epithelial-to-mesenchymal-transition-and-promotes-invasion-of-pancreatic-cancer-cells-through-transcriptional-activation-of-four-and-a-half-lim-only-protein-2
#15
Xiaoping Yi, Hongyan Zai, Xueying Long, Xiaoyi Wang, Wenzheng Li, Yixiong Li
Pancreatic cancer (PC) is one of the most aggressive types of cancer with an extremely poor prognosis. Invasive growth and early metastasis is one of the greatest challenges to overcome for the treatment of PC. Numerous previous studies have indicated that the transcription factor Krüppel-like factor 8 (KLF8) and nuclear cofactor four and a half LIM-only protein 2 (FHL2) serve important roles in tumorigenesis and tumor progression; however, their roles in PC remain elusive. The present study revealed that KLF8 and FHL2 expression is aberrantly co-overexpressed in PC tissue samples and associated with tumor metastasis...
October 2017: Oncology Letters
https://www.readbyqxmd.com/read/28943966/ligands-of-the-peroxisome-proliferator-activated-receptor-%C3%AE-inhibit-hepatoce-llular-carcinoma-cell-proliferation
#16
Zhe Jin, Baoxing Jia, Yu Fu, Ludong Tan, Qingmin Chen, Peiqiang Jiang, Yahui Liu
This study was designed to investigate the regulatory role of the peroxisome proliferator-activated receptor γ (PPARγ) in the growth of hepatocellular carcinoma cells under the hypothesis that the levels of the phosphatase and tensin homologue deleted on chromosome 10 (PTEN) mRNA and the phosphorylated Akt (pAkt) protein would be affected by the presence of different receptor ligand concentrations. SMMC-7721 hepatocellular carcinoma cells were cultured in the presence of different concentrations of either 15-deoxyprostaglandin J2 (15-d-PGJ2) or pioglitazone and experiments were conducted in order to determine cell growth changes and measure levels of PTEN mRNA and pAkt protein...
October 2017: Oncology Letters
https://www.readbyqxmd.com/read/28943965/dosimetric-comparison-and-observation-of-three-dimensional-conformal-radiotherapy-for-recurrent-nasopharyngeal-carcinoma
#17
Rongqiang Pan, Jingming Wang, Feng Qi, Ruizhen Liu
The aim of the study was to investigate the effect of three-dimensional conformal radiation therapy (3D-CRT) on nasopharyngeal carcinoma (NPC) and the incidence of complications. Between May 2010 and June 2012, 141 patients diagnosed with local recurrence of NPC due to cranial base lesions or cranial nerve symptoms, confirmed by pathology biopsy and/or by CT/MRI, were included in the present study. In accordance with the principle of randomized control, the patients were divided into three groups and treated with three different doses of 3D-CRT...
October 2017: Oncology Letters
https://www.readbyqxmd.com/read/28943964/decreased-expression-of-granulocyte-macrophage-colony-stimulating-factor-is-associated-with-adverse-clinical-outcome-in-patients-with-gastric-cancer-undergoing-gastrectomy
#18
Hao Liu, Chao Lin, Zhenbin Shen, Heng Zhang, Hongyong He, He Li, Jing Qin, Xinyu Qin, Jiejie Xu, Yihong Sun
Previous studies have revealed the clinical significance of tumor-associated macrophages (TAMs) in gastric cancer, whereas the role of the cytokines that orchestrate TAM polarization in gastric cancer remains elusive. The present study aimed to evaluate the prognostic value of granulocyte-macrophage colony-stimulating factor (GM-CSF) expression in patients with gastric cancer. Intratumoral GM-CSF expression was investigated by immunohistochemical staining in 408 retrospectively enrolled patients. Kaplan-Meier analysis and Cox regression models were used to evaluate the prognostic value of GM-CSF expression...
October 2017: Oncology Letters
https://www.readbyqxmd.com/read/28943963/expression-of-the-tumor-suppressor-gene-p16-and-lymph-node-metastasis-in-patients-with-ovarian-cancer
#19
Hongyan Wang, Jingfang Zheng, Qiang Li, Min Zhou, Dongmei Ai, Hui Zhang
This study examined the relationship between the expression of p16, a tumor suppressor gene, and lymph node metastasis, as well as patient prognosis, in cases with ovarian cancer. SKOV-3, an ovarian cancer cell line, and IOSE80, a normal human ovarian cell line, were selected for testing. Western blot analysis was used to detect the p16 expression in ovarian cell culture samples. In the study, 20 cases with normal ovarian tissue and 64 cases with ovarian cancer tissue, including 38 cases with lymph node metastasis and 26 cases without lymph node metastasis, were also selected for testing...
October 2017: Oncology Letters
https://www.readbyqxmd.com/read/28943962/role-and-mechanism-of-action-of-lrig1-in-ovarian-cancer-cell-line-and-vp16-drug-resistant-cell-line
#20
Yaqi Zhang, Zhizhen Liu, Shunrui Yu
We investigated the role of leucine-rich repeats and immunoglobulin-like domains (LRIG)-1 in ovarian cancer cell line and VP16 drug-resistant cell line to explore the possible mechanism of action. Human ovarian cancer cell line SKOV3 and the VP16 drug-resistant cell line SKOV3/VP16 were used to investigate whether LRIG1 affects the sensitivity of SKOV3 to drugs. RT-qPCR was used to detect the difference in LRIG1 expression between drug-resistant and wild-type cell lines. siRNA LRIG1 was designed and transfected to silence LRIG1 to investigate the mechanism by which LRIG1 affects the sensitivity of SKOV3 to drugs...
October 2017: Oncology Letters
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