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Oncology Letters

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https://www.readbyqxmd.com/read/27900059/expression-and-survival-significance-of-b-cell-specific-moloney-murine-leukemia-virus-integration-site-1-and-matrix-metalloproteinase-9-in-non-small-cell-lung-cancer
#1
Mingkui Mu, Yang Song, Bin Zhang
One of the main challenges in lung cancer research is identifying patients at high risk of progression and metastasis following surgical resection. In the present study, the prognostic significance of B-cell-specific Moloney murine leukemia virus integration site 1 (BMI1) and matrix metalloproteinase-9 (MMP9) in non-small-cell lung cancer (NSCLC) was evaluated. BMI1 and MMP9 expression in tumors from 132 surgical NSCLC patients [squamous cell carcinoma (SCC), n=79; and adenocarcinoma (AD), n=53] was evaluated by immunohistochemistry...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27900058/effect-of-surgical-wound-fluids-after-intraoperative-electron-radiotherapy-on-the-cancer-stem-cell-phenotype-in-a-panel-of-human-breast-cancer-cell-lines
#2
Karolina Zaleska, Wiktoria Maria Suchorska, Anna Przybyła, Dawid Murawa
The wound healing process after surgery alters the area surrounding the original tumor and around the scar, and the modified microenvironment is more favorable for tumor recurrence. Intraoperative radiotherapy (IORT) is one of the more novel strategies in breast cancer (BC) treatment. Irradiation during surgery has effects on the tumor microenvironment, abrogating the proliferative cascade induced by surgical wound healing. The aim of the present study was to determine the effect of surgical wound fluids from IOERT treatment (RT-WF) compared with wound fluids from conservative-breast surgery only (WF) on the cancer stem cell phenotype in a panel of BC cell lines...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27900057/in-vitro-and-in-vivo-inhibition-of-tumor-cell-viability-by-combined-dihydroartemisinin-and-doxorubicin-treatment-and-the-underlying-mechanism
#3
Xiang Tai, Xiao-Bei Cai, Zhang Zhang, Rui Wei
The natural extract artemisinin and its derivatives have good anticancer activity. The present study aimed to investigate the in vitro inhibitory effects of combined dihydroartemisinin (DHA) and doxorubicin (DOX) treatment on a variety of tumor cell lines (HeLa, OVCAR-3, MCF-7, PC-3 and A549), as well as the underlying mechanisms. In addition, the in vivo effects of DHA and DOX were evaluated using a mouse HeLa tumor model. The HeLa, OVCAR-3, MCF-7, PC-3 and A549 cells were treated with a combination of DHA and DOX, and the effect on cell viability was detected by Cell Counting kit-8...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27900056/inhibition-of-cell-proliferation-and-tumor-growth-of-colorectal-cancer-by-inhibitors-of-wnt-and-notch-signaling-pathways
#4
Yuliang Xiao, Xiaojing Yang, Yinglei Miao, Xikun He, Ming Wang, Weihong Sha
Understanding the role and mechanism of signaling pathways including Notch and Wnt in colorectal carcinogenesis is critical to the development of novel therapeutics. In the present study, we analyzed the cell proliferation, migration, G2/M percentage and the expression of molecules of signaling pathways in HCT-116 cells through the inhibition of Wnt and Notch pathways, and also investigated the effect of inhibitors of Wnt and Notch pathways on tumor growth in a transplantation tumor model. We observed that rDDK-1 (an inhibitor of the Wnt signaling pathway) and LY374973 (an inhibitor of the Notch signaling pathway) synergistically inhibited the proliferation, migration and G2/M percentage of HCT-116 cell lines, and could further synergistically inhibit the tumor volume and weight in the transplantation tumor model...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27900055/langerhans-cell-sarcoma-originating-from-left-knee-subcutaneous-tissue-a-case-report-and-literature-review
#5
Yaonan Zhang, Zongyang Qu, Fang Fang
Langerhans cell sarcoma (LCS) is a neoplastic proliferation of Langerhans cells with notably malignant cytological features. Reports of LCS are sparsely available in English literature; to the best of our knowledge, only 55 cases have been reported. The present study reports a case of LCS originating from subcutaneous tissue of the left knee in a 75-year-old man. The diagnosis of LCS was supported by the results of magnetic resonance imaging, histological and immunohistochemical studies. The tumor began to metastasize to inguinal lymph nodes and eventually involved multiple organs...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27900054/scorpion-venoms-in-gastric-cancer
#6
Xiao-Ying Zhang, Pei-Ying Zhang
Venom secretions from snakes, scorpions, spiders and bees, have been widely applied in traditional medicine and current biopharmaceutical research. Possession of anticancer potential is another novel discovery for animal venoms and toxins. An increasing number of studies have shown the anticancer effects of venoms and toxins of snakes, and scorpions in vitro and in vivo, which were achieved mainly through the inhibition of cancer growth, arrest of cell cycle, induction of apoptosis and suppression of cancer metastasis...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27900053/receptor-tyrosine-kinases-in-carcinogenesis
#7
Xiao-Ying Zhang, Pei-Ying Zhang
Receptor tyrosine kinases (RTKs) are cell surface glycoproteins with enzymatic activity involved in the regulation of various important functions. In all-important physiological functions including differentiation, cell-cell interactions, survival, proliferation, metabolism, migration and signaling these receptors are the key players of regulation. Additionally, mutations of RTKs or their overexpression have been described in many human cancers and are being explored as a novel avenue for a new therapeutic approach...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27900052/recent-perspectives-of-breast-cancer-prognosis-and-predictive-factors
#8
Su-Sheng Cao, Cun-Tao Lu
Breast cancer is the most common type of cancer affecting women worldwide. Although there have been great improvements in treating the disease and at present between 80 and 90% of the women survive ≥5-years after their primary diagnosis. However, due to the high incidence of the disease >450,000 women succumb to breast cancer annually worldwide. The majority of improvements in breast cancer survival may be explained through better knowledge of the development and progression of the disease. Consequently, the treatments employed have become more effective...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27900051/sensitization-strategies-in-lung-cancer
#9
Xiao-Ying Zhang, Peiying Zhang
The commonly used treatment avenues employed by cancer physicians include surgery, radiotherapy (RT) and chemotherapy in addition to rapid developmental and confirmatory studies on the efficacy of targeted therapies. However, the success rate in these commonly used treatments remains relatively low due to associated side effects, such as normal cell targeting/toxicity and resistance. In addition, investigators are continuing their efforts to enhance the efficacy of RT and chemotherapy to prevent associated side effects and improve the survival rate of the affected patient in order to increase patient survival...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27900050/molecular-alterations-in-the-carcinogenesis-and-progression-of-hepatocellular-carcinoma-tumor-factors-and-background-liver-factors
#10
Yoshikuni Inokawa, Kenichi Inaoka, Fuminori Sonohara, Masamichi Hayashi, Mitsuro Kanda, Shuji Nomoto
Although hepatocellular carcinoma (HCC) is associated with poor prognosis worldwide, the molecular mechanisms underlying the carcinogenesis and progression of this disease remain unclear. Several tumor characteristics have previously been demonstrated to be prognostic factors of survival following hepatic resection, or the recurrence of HCC or other types of cancer. Comparisons of normal tissues and HCC tumor tissues have revealed the presence of numerous molecular alterations in HCC, including genetic and epigenetic mechanisms, particularly mutations in certain genes and DNA methylation in the promoter regions of tumor-suppressor genes...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27900049/toll-like-receptors-and-cutaneous-melanoma
#11
Ilaria Coati, Serena Miotto, Irene Zanetti, Mauro Alaibac
Innate immune cells recognize highly conserved pathogen-associated molecular patterns (PAMPs) via pattern recognition receptors (PRRs). Previous studies have demonstrated that PRRs also recognize endogenous molecules, termed damage-associated molecular patterns (DAMPs) that are derived from damaged cells. PRRs include Toll-like receptors (TLRs), scavenger receptors, C-type lectin receptors and nucleotide oligomerization domain-like receptors. To date, 10 TLRs have been identified in humans and each receptor responds to a different ligand...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27900048/regulatory-network-of-micrornas-and-genes-in-testicular-cancer
#12
Yansong Zhao, Zhiwen Xu, Ning Wang, Shang Wang
Testicular cancer (TC) is the most common cancer in men between 20-40 years of age. A large number of studies have focused on identifying the cause of this disease; however, the underlying regulatory mechanisms have not been thoroughly investigated and the specific cause remains unclear. The present study systematically analyzed the regulatory associations between genes, transcription factors (TFs) and microRNAs (miRNAs), aiming to obtain key information regarding the regulatory processes of TC. Three different networks were derived from the analysis: Global, related and differentially-expressed...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27900047/microrna-138-inhibits-proliferation-migration-and-invasion-through-targeting-htert-in-cervical-cancer
#13
Na Zhou, Dan Fei, Shan Zong, Mingyue Zhang, Ying Yue
A growing body of evidence suggests that microRNA-138 (miR-138) functions as a tumor suppressor, and is involved in tumor initiation, development and metastasis in certain types of human cancers. However, the function and underlying molecular mechanism of miR-138 in cervical cancer remains unclear. Therefore, the purpose of the present study was to investigate the clinical significance of miR-138 expression in cervical cancer, and to evaluate its role and underlying mechanisms in cervical cancer. The present study indicated that miR-138 expression was significantly downregulated in cervical cancer tissues and cell lines, and that the low miR-138 expression was negatively associated with advanced FIGO stage and lymph node metastasis (P<0...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27900046/proliferation-and-metastatic-potential-of-endometrial-cancer-cells-in-response-to-metformin-treatment-in-a-high-versus-normal-glucose-environment
#14
Amanda de Barros Machado, Vania Dos Reis, Sebastian Weber, Julia Jauckus, Ilma Simoni Brum, Helena von Eye Corleta, Thomas Strowitzki, Edison Capp, Ariane Germeyer
In order to improve our understanding of the potential preventive and therapeutic role of metformin, the present study aimed to investigate the capability of low-dose metformin in the efficient inhibition of cancer development and the reduction of the metastasis of endometrial adenocarcinoma type I and primary endometrial epithelial cells (eEPs), with the drug acting as a treatment in a hyperinsulinemic environment exposed to high and normal glucose conditions. The Ishikawa endometrial adenocarcinoma cell line and primary eEPs were exposed to an environment with high (17 mM) or normal glucose (5 mM) and treated with insulin, low-dose metformin (0...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27900045/microrna-133b-inhibits-the-migration-and-invasion-of-non-small-cell-lung-cancer-cells-via-targeting-fscn1
#15
Xucheng Yang, Pengfei Lei, Yong Huang, Zijian Zhang, Yingying Zhang
MicroRNA (miR)-133b has been reported to act as a tumor suppressor in multiple types of human cancers, including non small cell lung cancer (NSCLC). However, the underlying mechanism by which miR-133b inhibits NSCLC metastasis remains largely unclear. In the present study, reverse transcription-quantitative polymerase chain reaction and western blotting were used to detect messenger RNA and protein expression. A wound healing assay and transwell assay were used to examine the cell migration and invasion. The expression level of miR-133b was found to be significantly downregulated in NSCLC cell lines compared with normal lung epithelial BEAS-2B cells...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27900044/plumbagin-inhibits-cell-proliferation-and-promotes-apoptosis-in-multiple-myeloma-cells-through-inhibition-of-the-pi3k-akt-mtor-pathway
#16
Hongwei Wu, Xiaozhen Dai, Enren Wang
Plumbagin is the primary component of the traditional Chinese medicine Baihua Dan, and possesses anti-infection and anticancer effects with the ability to enhance the sensitivity of tumor cells to radiation therapy. The present study aimed to investigate the potential anticancer effect and mechanism of plumbagin on multiple myeloma (MM) cells. Human MM OPM1 cells were treated with plumbagin, and its impact on cell viability, cytotoxicity, apoptosis and caspase-3 activity was examined by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide, lactate dehydrogenase leakage, flow cytometry and colorimetric assays...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27900043/second-look-surgery-following-hartmann-s-procedure-for-obstructive-left-sided-colorectal-cancer
#17
Naohito Beppu, Fumihiko Kimura, Nagahide Matsubara, Masashi Noda, Naohiro Tomita, Hidenori Yanagi, Naoki Yamanaka
The aim of the present study was to investigate the short- and long-term outcomes of patients undergoing second-look surgery following Hartmann's procedure for obstructive left-sided colorectal cancer (LSCC). All patients included in the present study had undergone radical surgery with Hartmann's procedure for obstructive LSCC. Adjuvant chemotherapy was recommended for all patients, and patients with no signs of recurrence following six months of surveillance were planned to undergo second-look surgery. The aim of second-look surgery was early detection of local recurrence and determination of the efficacy of laparoscopic Hartmann procedure reversal...
November 2016: Oncology Letters
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
#18
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/27900041/immunohistochemical-expression-and-serum-level-of-survivin-protein-in-colorectal-cancer-patients
#19
Katarzyna Jakubowska, Anna Pryczynicz, Violetta Dymicka-Piekarska, Waldemar Famulski, Katarzyna Guzińska-Ustymowicz
Survivin is one of the apoptosis-related inhibitors that is associated with a more aggressive behavior and a poor prognosis in numerous types of malignancies, including colorectal cancer (CRC). The objective of the present study was to perform immunohistochemical tissue analysis of survivin expression and serum analysis of survivin levels in CRC patients. The study group consisted of 55 CRC patients. Survivin expression was assessed by immunohistochemistry in 38 patients using monoclonal antibodies. Color reactions were observed in the nucleus and cytoplasm of the cancer cells...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27900040/triptolide-exerts-pro-apoptotic-and-cell-cycle-arrest-activity-on-drug-resistant-human-lung-cancer-a549-taxol-cells-via-modulation-of-mapk-and-pi3k-akt-signaling-pathways
#20
Chen Qiong Xie, Ping Zhou, Jian Zuo, Xiang Li, Yong Chen, Jian Wei Chen
Multidrug resistance (MDR) is a major obstacle in the effective chemotherapeutic treatment of cancers. Triptolide (TPL) is a diterpenoid isolated from Tripterygium wilfordii Hook. f., a traditional Chinese medicine. It was demonstrated in our previous study that TPL exerts anti-MDR cancers on various MDR cell lines (including A549/Taxol, MCF-7/ADR and Bel7402/5-Fu). The present study was designed to investigate its anti-proliferative activity on A549/Taxol cells, and explore the underlying mechanism of action...
November 2016: Oncology Letters
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