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https://www.readbyqxmd.com/read/28454472/hsp90-inhibitor-sy-016-induces-g2-m-arrest-and-apoptosis-in-paclitaxel-resistant-human-ovarian-cancer-cells
#1
Hyun Gyo Lee, Won Jin Park, So Jin Shin, Sang Hoon Kwon, Soon Do Cha, Young Ho Seo, Ju Hui Jeong, Ji Yoon Lee, Chi Heum Cho
The aim of the present study was to evaluate the in vitro effect of a heat shock protein (Hsp)90 inhibitor, SY-016, on the paclitaxel (PTX)-resistant human ovarian cancer cell line OVCAR-3PTX, and explore its mechanism of apoptosis. In the present study, SY-016 was used in combination with PTX to determine its effect on the cell proliferation and apoptosis of OVCAR-3PTX cells. The drug-resistant tumor cells were established in vitro by stepwise sequential exposure to increasing concentrations of PTX. The cell viability and cell cycle distribution were measured by MTT assay and flow cytometric analysis, respectively...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454471/downregulation-of-fkbp14-by-rna-interference-inhibits-the-proliferation-adhesion-and-invasion-of-gastric-cancer-cells
#2
Ruizhong Wang, Hua Fang, Qin Fang
FK506 binding protein (FBBP) 14 belongs to the family of FKBPs. Altered expression of FKBPs are observed in several malignancies. The present study aimed to explore the expression and biological function of FKBP14 in gastric cancer. FKBP14 expression levels in 40 gastric cancer samples and matched control samples were evaluated using quantitative polymerase chain reaction. Cell proliferation was evaluated using Cell Counting kit-8 assay. A cell adhesion and a Transwell assay were performed to detect cell adhesion and invasion...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454469/regulation-of-cytotoxicity-and-apoptosis-associated-pathways-contributes-to-the-enhancement-of-efficacy-of-cisplatin-by-baicalein-adjuvant-in-human-a549-lung-cancer-cells
#3
Suparata Kiartivich, Ying Wei, Jiaqi Liu, Rungtip Soiampornkul, Mihui Li, Hongying Zhang, Jingcheng Dong
Scutellaria baicalensis (SB; Chinese name, huangqin) is widely used in Chinese medicine as a traditional adjuvant in the chemotherapy of lung and liver cancer. Baicalein is one of the bioactive flavonoid components isolated from the root of SB. The present study aimed to observe the effect of baicalein, in combination with platin-based systemic chemotherapy (cisplatin), on cytotoxicity and apoptosis of human A549 lung cancer cells. The cell cultures were treated with baicalein, cisplatin, or a combination of the two...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454466/identification-of-molecular-characteristics-induced-by-radiotherapy-in-rectal-cancer-based-on-microarray-data
#4
Chang Ge, Mengxia Wu, Guifang Chen, Guanying Yu, Dehui Ji, Shaozhao Wang
The present study aimed to reveal the molecular characteristics induced by radiotherapy in rectal cancer at the transcriptome level. Microarray data (ID, GSE26027) downloaded from the Gene Expression Omnibus database were re-analyzed to identify differentially expressed genes (DEGs) between rectal cancer tissues during and prior to radiotherapy. The DEGs were then inputted into the database for annotation, visualization and integrated discovery, an online tool to perform enrichment analyses, and into the search tool for the retrieval of interacting genes/proteins database to identify protein-protein interactions (PPIs)...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454465/microarray-based-analysis-of-gene-regulation-by-mesenchymal-stem-cells-in-breast-cancer
#5
Ming Zhang, Chang E Gao, Wen Hui Li, Yi Yang, Li Chang, Jian Dong, Yan Xin Ren, De Dian Chen
Breast cancer is one of the most common malignant tumors with a high case-fatality rate among women. The present study aimed to investigate the effects of mesenchymal stem cells (MSCs) on breast cancer by exploring the potential underlying molecular mechanisms. The expression profile of GSE43306, which refers to MDA-MB-231 cells with or without a 1:1 ratio of MSCs, was downloaded from Gene Expression Omnibus database for differentially expressed gene (DEG) screening. The Database for Annotation, Visualization and Integrated Discovery was used for gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis for DEGs...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454463/reduced-ebp50-expression-levels-are-correlated-with-unfavorable-clinicopathological-features-of-extrahepatic-bile-duct-carcinoma-and-promote-the-proliferation-and-migration-of-qbc939-cells
#6
Duiping Feng, Ying Xiong, Zhiqiang Peng, Qiang Ma, Tao Tao, Hua Liu, Jianfang Liang, Zhigang Wei, Junfang Zheng, Lei Wang, Hui Zhang
The present study aimed to clarify the association between ezrin-radixin-moesin-binding phosphoprotein-50 (EBP50) expression level and the tumor phenotype and clinicopathological features of extrahepatic bile duct carcinoma. Tissue samples from patients with extrahepatic bile duct carcinoma (54 cases) and patients with normal bile duct epithelia from gallbladder of cholecystitis (20 cases) were collected, and immunohistochemical staining was used to detect the expression levels of EBP50 in these tissues. In addition, small interfering (si)RNA-EBP50 was used to knock down the expression of EBP50 in the QBC939 human cholangiocarcinoma (CC) cell line...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454462/effects-of-irradiation-on-radioresistance-hotair-and-epithelial-mesenchymal-transition-cancer-stem-cell-marker-expression-in-esophageal-squamous-cell-carcinoma
#7
Chunli Da, Li Wu, Yuting Liu, Ruozheng Wang, Ruiguang Li
Radiotherapy is a common therapeutic strategy used to treat esophageal squamous cell carcinoma (ESCC). However, tumor cells often develop radioresistance, thereby reducing treatment efficacy. Here, we aimed to identify the mechanisms through which ESCC cells develop radioresistance and identify associated biomarkers. Eca109 cells were exposed to repeated radiation at 2 Gy/fraction for a total dose of 60 Gy (Eca109R60/2Gy cells). MTT and colony formation assays were performed to measure cell proliferation and compare the radiation biology parameters of Eca109 and Eca109R60/2Gy cells...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454461/prognostic-value-of-mlh1-promoter-methylation-in-male-patients-with-esophageal-squamous-cell-carcinoma
#8
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/28454459/expression-of-cxcl12-and-its-receptor-cxcr4-in-patients-with-adenomyosis
#9
Juan Li, Geping Yin, Ming Chen, Shujun Yang, Aifang Wu, Jing Liang, Zheng Yuan
The aim of the present study was to investigate the role of chemokine (C-X-C motif) ligand 12 (CXCL12) and its receptor, chemokine (C-X-C motif) receptor 4 (CXCR4) in the pathogenesis of adenomyosis (AD). Immunohistochemistry and reverse transcription-quantitative polymerase chain reaction analysis were used to measure the protein and mRNA expression of CXCL12 and CXCR4 in eutopic endometrial and ectopic foci tissue samples. Samples from a total of 36 patients with AD (study group) were compared with endometrial tissue samples from 33 patients who underwent uterine fibroids surgery (control group) during the same period...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454458/survivin-downregulation-using-sirna-nanoliposomes-inhibits-cell-proliferation-and-promotes-the-apoptosis-of-mhcc-97h-hepatic-cancer-cells-an-in-vitro-and-in-vivo-study
#10
Ziqin Liu, Tianyou Wang, Zhaoxia Zhang, Suoqin Tang, Shunqiao Feng, Mei Yue, Mengze Hu, Litian Xuan, Yanfei Chen
At present, survivin is one of the most cancer-specific proteins that has been identified. The present study aimed to investigate the antitumor effects of novel survivin small interfering RNA (siRNA) nanoliposomes targeting survivin in human hepatocellular carcinoma MHCC-97H cells and xenograft mouse models. Survivin-targeted siRNA nanoliposomes were prepared and transfected into MHCC-97H cells and MHCC-97H-bearing nude mice. Survivin expression was analyzed using reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and western blotting...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454452/flow-cytometry-based-immunophenotypic-analysis-of-primary-systemic-light-chain-amyloidosis
#11
Xiangwen Diao, Juan Li, Juan Ouyang, Junru Liu, Beihui Huang, Meilan Chen, Jingli Gu
Using flow cytometry, the present study aimed to investigate the immunophenotypic characteristics of malignant plasma cells (PCs) in the bone marrow of patients with primary systemic light chain amyloidosis (AL) compared with the characteristics of patients with multiple myeloma (MM). Flow cytometric results of 51 patients with AL and 150 patients with MM were reviewed. The proportion of total bone marrow PCs in the patients with AL was significantly lower than that in the patients with MM, 1.35% (0.3-9.5%) vs...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454451/expression-of-glp-1-receptor-and-cd26-in-human-thyroid-c-cells-the-association-of-thyroid-c-cell-tumorigenesis-with-incretin-based-medicine
#12
Yuejia Song, Min Zhou, Yang Cao, Jiping Qi, Jingshu Geng, Xiaomin Liu
Recent reports have demonstrated that long-term and high dosage treatments with incretin-based medicine, such as hormone glucagon-like peptide-1 (GLP-1) may induce thyroid C-cell pathological changes in rodents, rather than in humans. Doubts regarding the tumorigenic potential of GLP-1 analogues in human thyroid C-cells remain. The present study aimed to determine the expression levels of GLP-1 receptor (GLP-1R) and cluster of differentiation 26 (CD26) in the C-cells of thyroid tissues from non-neoplastic, medullary carcinoma and hyperplasia subjects, and to explore the potential clinical significance...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454447/inhibitory-effect-and-mechanism-of-exogenous-mammalian-sterile-20-like-kinase-1-on-the-growth-of-human-colorectal-cancer
#13
Jian Wu, Xiaohong Yang, Hongfei Lu, Liqiao Liu, Baohua Xu, Shuangyan Zheng, Bo Yu, Kemin Jie, Fusheng Wan
The present study aimed to observe the inhibitory effect and preliminary mechanism of exogenous mammalian sterile 20-like kinase 1 (MST1) on the growth of colorectal cancer SW480 cells. The SW480 cells were randomly divided into the following groups: Control, empty enhanced green fluorescent protein (EGFP) plasmid (pEGFP-N1), MST1 EGFP plasmid (pEGFP-MST1), 20 µmol/l fluorouracil (5-FU) and pEGFP-MST1 + 5-FU. An MTS colorimetric assay was used to detect cell viability, Hoechst 33342 staining was used to observe cell apoptosis, and western blotting and immunohistochemistry were used to detect the levels of the proteins MST1, yes-associated protein (YAP), phospho-YAP1 (Ser127), p53 and p53 upregulated modulator of apoptosis (PUMA)...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454443/mir-185-3p-regulates-the-invasion-and-metastasis-of-nasopharyngeal-carcinoma-by-targeting-wnt2b-in-vitro
#14
Chao Liu, Guo Li, Shuling Ren, Zhongwu Su, Yunyun Wang, Yongquan Tian, Yong Liu, Yuanzheng Qiu
MicroRNAs (miRs) have been recognised as important regulators of malignant behaviour in different types of human cancer, including nasopharyngeal carcinoma (NPC). A previous study by our group revealed that miR-185-3p regulates the radioresistance of NPC cells. The present study aimed to investigate the effect of miR-185-3p on NPC invasion and metastasis. Human NPC CNE-2 and 5-8F cell lines were transfected with a miR-185-3p mimic and miR-185-3p inhibitor, respectively, and their effects on the invasion and metastasis of these cells was assessed using a wound healing assay and Matrigel invasion assay...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454442/identification-of-target-genes-of-cediranib-in-alveolar-soft-part-sarcoma-using-a-gene-microarray
#15
Wenhua Jiang, Pengfei Liu, Xiaodong Li, Ping Wang
The aim of the present study was to identify the target genes of cediranib and the associated signaling pathways in alveolar soft part sarcoma (ASPS). A microarray dataset (GSE32569) was obtained from the Gene Expression Omnibus database. The R software package was used for data normalization and screening of differentially expressed genes (DEGs). The Database for Annotation, Visualization and Integrated Discovery was used to perform Gene Ontology analysis. Gene Set Enrichment Analysis was performed to obtain the up- and downregulated pathways in ASPS...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454436/satb1-promotes-epithelial-mesenchymal-transition-and-metastasis-in-prostate-cancer
#16
Honggang Qi, Xinyang Fu, Yeping Li, Xiang Pang, Sansan Chen, Xiaojun Zhu, Fei Li, Wanlong Tan
Special AT-rich sequence-binding protein-1 (SATB1) is associated with cancer progression and poor clinical outcome. The present study aims to evaluate whether SATB1 affects the biological behaviors of prostate cancer (PCa), and furthermore, to elucidate whether this effect works through the epithelial-mesenchymal transition (EMT) pathway. Firstly, the expression of SATB1 was investigated in a series of PCa tissues as well as in a panel of PCa cell lines. Cell proliferation, migration and invasion were evaluated in SATB1 knockdown and overexpressed PCa cell lines by MTT and Transwell assays...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454434/f10-a-novel-hydatidiform-mole-associated-gene-inhibits-the-paclitaxel-sensitivity-of-a549-lung-cancer-cells-by-downregulating-bax-and-caspase-3
#17
Yali Song, Wei Cao, Xi Zhu, Zhuolin Qiu, Xiaoping Yang, Jing Liu, Ruoting Xu, Weizhuang Yuan, Song Quan
F10 is a novel hydatidiform mole (HM)-associated gene that was initially identified during a study into the pathogenesis of HMs. However, the role of the F10 gene requires further investigation. Our, previous studies have indicated that F10 may be involved in the malignant transformation of HMs and the development of certain types of adenocarcinoma, and that the overexpression of F10 may lead to excessive proliferation and decreased apoptosis of A549 cells. The present study aimed to investigate whether F10 may suppress the sensitivity of A549 lung cancer cells to paclitaxel therapy...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454433/deregulation-of-mir-193b-affects-the-growth-of-colon-cancer-cells-via-transforming-growth-factor-%C3%AE-and-regulation-of-the-smad3-pathway
#18
Kaiming Wu, Zhenxian Zhao, Jun Ma, Jianhui Chen, Jianjun Peng, Shibin Yang, Yulong He
MicroRNA-193b (miRNA-193b) is often differentially expressed and is an important regulator of gene expression in colon cancer. The aim of the present study was to determine whether miRNA-193b affects cell growth in colon cancer and to investigate the potential underlying mechanisms. Patients with colorectal cancer (CRC; n=20) and healthy volunteers (n=10) were enrolled from the Department of Gastrointestinal Surgery Center, First Affiliated Hospital of Sun Yat-Sen University (Guangzhou, China). Western blot analysis was used to evaluate the protein expression of SMAD3 and transforming growth factor-β (TGF-β) in the patient samples...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454432/prognostic-and-predictive-role-of-cox-2-xrcc1-and-rassf1-expression-in-patients-with-esophageal-squamous-cell-carcinoma-receiving-radiotherapy
#19
Yaowen Zhang, Shangwen Dong, Ruiping Xu, Yanping Yang, Zhiyong Zheng, Xiaojing Wang, Runchuan Ren, Ronggang Sun, Ming Li, Haijun Yang, Yuting Huang, Fuyou Zhou, Anping Zheng
Identification of biomarkers for predicting radiosensitivity would be useful for administering individualized radiotherapy (RT) to patients with esophageal cancer. The aim of the present study was to evaluate the association between cyclooxygenase-2 (COX-2), X-ray repair cross complementing group 1 (XRCC1), ras association domain family 1 (RASSF1) protein expression, clinicopathological characteristics, radiosensitivity and survival rate in 76 patients with esophageal squamous cell carcinoma (ESCC) who were treated with RT...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454428/the-regulation-of-proteins-associated-with-the-cytoskeleton-by-hepatitis-b-virus-x-protein-during-hepatocarcinogenesis
#20
Fanyun Kong, Hongjuan You, Renxian Tang, Kuiyang Zheng
Hepatocellular carcinoma (HCC) is a major malignant disease worldwide, and chronic hepatitis B virus (HBV) infection is one of the primary causes for this type of cancer. Hepatitis B virus X protein (HBx) is a non-structural protein encoded by the viral genome that has significant effects on the pathogenesis of HCC. With the development of high-throughput assays and technologies, the abnormal HBx-induced expression of certain cellular proteins with assorted biological functions has been investigated. These target proteins identified by various methods include specific proteins associated with the cellular cytoskeleton, which contribute to HBx-induced hepatocarcinogenesis...
April 2017: Oncology Letters
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