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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
#1
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/28454462/effects-of-irradiation-on-radioresistance-hotair-and-epithelial-mesenchymal-transition-cancer-stem-cell-marker-expression-in-esophageal-squamous-cell-carcinoma
#2
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/28454460/melatonin-treatment-induces-apoptosis-through-regulating-the-nuclear-factor-%C3%AE%C2%BAb-and-mitogen-activated-protein-kinase-signaling-pathways-in-human-gastric-cancer-sgc7901-cells
#3
Weimin Li, Zhonglue Wang, Yina Chen, Kaijing Wang, Ting Lu, Fei Ying, Mengdi Fan, Zhiyin Li, Jiansheng Wu
Melatonin, which is synthesized by the pineal gland and released into the blood, exhibits antitumor properties. However, the mechanisms underlying these effects, particularly in stomach cancer, remain unknown. In the present study, the effect of melatonin on the nuclear factor (NF)-κB signaling pathway and the mitogen-activated protein kinase signaling pathway, involving p38 and c-Jun-N-terminal kinase (JNK), were investigated in SGC7901 gastric cancer cells. In addition, the effect of melatonin on the survival, migration and apoptosis of these cells was investigated in vitro in order to evaluate the use of melatonin for the treatment of gastric cancer...
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
#4
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/28454438/chk2-is-involved-in-the-p53-independent-radiosensitizing-effects-of-valproic-acid
#5
Dong Wan Choo, Sung Ho Goh, Young Woo Cho, Hye Jung Baek, Eun Jung Park, Noboru Motoyama, Tae Hyun Kim, Joo Young Kim, Sang Soo Kim
Radiotherapy is an effective treatment for the majority of types of localized solid cancer. However, the risk of side effects to the surrounding normal tissues limits radiotherapeutic approaches. Whilst the mechanism of action of valproic acid, an inhibitor of histone deacetylase, remains unknown, the inhibitor is a potential antineoplastic radiosensitizer. The present study demonstrated the in vitro radiosensitizing effects of valproic acid on the human breast cancer MCF7 cell line, and revealed that valproic acid increased the level of DNA breakage, apoptosis and senescence...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454423/the-nutritional-herb-epimedium-grandiflorum-inhibits-the-growth-in-a-model-for-the-luminal-a-molecular-subtype-of-breast-cancer
#6
Nitin T Telang, Gou Li, Meena Katdare, Daniel W Sepkovic, H Leon Bradlow, George Y C Wong
The Luminal A subtype of breast cancer expresses the estrogen receptor (ER)-α and progesterone receptor (PR), but not the human epidermal growth factor receptor (HER)-2 oncogene. This subtype of breast cancer responds to endocrine therapy involving the use of selective estrogen receptor modulators and/or inhibitors of estrogen biosynthesis. However, these therapeutic agents are frequently associated with long-term systemic toxicity and acquired tumor resistance, emphasizing the need to identify non-toxic alternative treatments for chemo-endocrine therapy responsive breast cancer...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454422/the-role-of-mrp1-in-the-multidrug-resistance-of-colorectal-cancer
#7
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/28454414/analysis-of-egfr-mutation-status-in-tissue-and-plasma-for-predicting-response-to-egfr-tkis-in-advanced-non-small-cell-lung-cancer
#8
Yuyan Wang, Jianchun Duan, Hanxiao Chen, Hua Bai, Tongtong An, Jun Zhao, Zhijie Wang, Minglei Zhuo, Shuhang Wang, Jie Wang
The detection of mutations in the epidermal growth factor receptor (EGFR) gene in tumor tissues has been established as the gold standard for predicting the efficacy of treatment with EGFR-tyrosine kinase inhibitors (EGFR-TKIs) in advanced non-small-cell lung cancer (NSCLC). The current study aimed to investigate whether the presence of co-existing EGFR mutations in tumor tissue and in cell-free tumor DNA (ctDNA) in the plasma predicts a more favorable outcome of EGFR-TKI treatment in advanced NSCLC. A total of 287 NSCLC patients who had undergone EGFR-TKI treatment were enrolled and stratified into four subgroups: Wild-type EGFR in plasma and tissue specimens (B-/T-); mutated EGFR in plasma and tissue specimens (B+/T+); mutated EGFR in only in plasma samples (B+/T-); or mutated EGFR in only tissue specimens (B-/T+)...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454381/optimized-construction-of-muc1-vntrn-dna-vaccine-and-its-anti-pancreatic-cancer-efficacy
#9
Yuan-Feng Gong, Quan-Bo Zhou, Ya-Di Liao, Cong Mai, Tie-Jun Chen, Yun-Qiang Tang, Ru-Fu Chen
Considering mucin 1-variable number tandem repeat (MUC1-VNTRn) as a novel target for pancreatic cancer immunotherapy, the present study aimed to screen and identify the pVAX1-MUC1-VNTRn DNA vaccine with the strongest immunogenicity. Following construction of a pVAX1-MUC1-VNTRn plasmid, immature dendritic cells (DCs) were subjected to transfection, and mature DCs were then co-cultured with autologous T-cells. The numbers of cytotoxic T lymphocytes (CTLs) secreting interferon (IFN)-γ were determined using an enzyme-linked immunospot assay, and CytoTox(®) was also used to examine the MUC1-VNTRn-specific Lethal effect of CTLs on Capan2 cells...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454373/inhibition-of-cyfip2-promotes-gastric-cancer-cell-proliferation-and-chemoresistance-to-5-fluorouracil-through-activation-of-the-akt-signaling-pathway
#10
Shuhua Jiao, Nuo Li, Shuang Cai, Haimei Guo, Yanhui Wen
Gastric cancer is a common gastrointestinal malignancy that accounts for a notable proportion of cancer-associated mortalities worldwide. Cytoplasmic fragile X mental retardation 1-interacting protein 2 (CYFIP2) is a novel p53-mediated pro-apoptotic protein whose expression is decreased in gastric cancer. However, whether decreased expression of CYFIP2 contributes to gastric carcinogenesis remains unclear. In order to mimic in vivo gastric tumor CYFIP2 expression levels, the present study used short hairpin RNA targeting CYFIP2 mRNA to silence CYFIP2 expression in MGC803 and SGC7901 gastric cancer cells...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454363/microrna-124-regulates-the-radiosensitivity-of-non-small-cell-lung-cancer-cells-by-targeting-txnrd1
#11
Chuncheng Hao, Xiangying Xu, Jia Ma, Jun Xia, Bingbing Dai, Lili Liu, Yuyan Ma
Radiation treatment remains one of the major modalities in the treatment of lung cancer. Although the majority of patients initially respond to treatment with radiation, resistance inevitably develops and leads to treatment failure. Therefore, the identification of the underlying molecular mechanisms of radiation resistance may facilitate the development of novel approaches for overcoming resistance, and enhance the efficacy of treatment with radiation in lung and other types of cancer. In the present study we established three radiation-resistant sub-cell lines derived from the radiation-sensitive lung cancer cell line HCC827...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454342/feasibility-and-antitumor-efficacy-in-vivo-of-simultaneously-targeting-glycolysis-glutaminolysis-and-fatty-acid-synthesis-using-lonidamine-6-diazo-5-oxo-l-norleucine-and-orlistat-in-colon-cancer
#12
Diana Cervantes-Madrid, Guadalupe Dominguez-Gomez, Aurora Gonzalez-Fierro, Enrique Perez-Cardenas, Lucia Taja-Chayeb, Catalina Trejo-Becerril, Alfonso Duenas-Gonzalez
The aim of the present study was to investigate in vivo the feasibility and efficacy of the combination of lonidamine (LND), 6-diazo-5-oxo-L-norleucine (DON) and orlistat to simultaneously target glycolysis, glutaminolysis and de novo synthesis of fatty acids, respectively. The doses of LND and DON used in humans were translated to mouse doses (77.7 mg/kg and 145.5 mg/kg, respectively) and orlistat was used at 240 mg/kg. Three schedules of LND, DON and orlistat at different doses were administered by intraperitoneal injection to BALB/c mice in a 21-day cycle (schedule 1: LND, 0...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454339/puma-decreases-the-growth-of-prostate-cancer-pc-3-cells-independent-of-p53
#13
Zhengfei Shan, Qingzuo Liu, Yuling Li, Jitao Wu, Dekang Sun, Zhenli Gao
PUMA (p53 upregulated modulator of apoptosis), a member of the B-cell lymphoma 2 (Bcl-2) protein family, is a pro-apoptotic protein. PUMA expression is modulated by the tumor suppressor p53. PUMA has a role in rapid cell death via p53-dependent and -independent mechanisms. To evaluate whether p53 is required for PUMA-mediated apoptosis in prostate cancer cells, p53 protein was silenced in human prostate cancer PC-3 cells by using p53 small interfering RNA (siRNA). The interference efficiency of p53 on RNA and protein levels was detected by reverse transcription-quantitative polymerase chain reaction and western blotting...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454335/effect-of-laser-therapy-on-plasma-expression-of-vegf-and-bfgf-in-infants-with-cutaneous-hemangioma
#14
Fagang Wang, Rongjian Xu, Qian Xu, Yongqian Cao, Li Lin, Wei Dang
The present study aimed to investigate the effect of laser therapy on the expression of vascular endothelial growth factor (VEGF) and basic fibroblast growth factor (bFGF) in the plasma of infants diagnosed with cutaneous hemangioma, in order to identify biomarkers for assessing the clinical efficacy of laser therapy. In total, 109 infants with superficial abdominal hemangioma received laser treatment, of which 74 were diagnosed in the proliferation phase, 20 in the regression phase and 15 in the involution phase...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454327/stereotactic-radiotherapy-in-the-treatment-of-local-recurrences-of-esophageal-cancer
#15
Marcel Matzenauer, David Vrána, Zuzana Vlachová, Rene Aujesky, Radek Vrba, Cestmir Neoral, Bohuslav Melichar
Esophageal cancer (EC) consists of tumors with a generally poor prognosis, and treatment options for patients with disease recurrence are extremely limited. Due to this poor patient prognosis, the possible treatment toxicity should be carefully balanced against its potential benefit and patient quality of life. Stereotactic body radiotherapy (SBRT) is a rapidly expanding novel technique combining a short treatment time together with high local efficacy and an acceptable toxicity profile. There are no publications thus far presenting data regarding the usage of SBRT utilizing a conventional linear accelerator in locally recurrent EC patients...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454315/correlation-between-the-efficacy-of-amrubicin-and-the-previous-chemotherapy-regimen-for-relapsed-small-cell-lung-cancer
#16
Masashi Kasajima, Satoshi Igawa, Mikiko Ishihara, Sakiko Otani, Akira Takakura, Masanori Yokoba, Masaru Kubota, Jiichiro Sasaki, Masato Katagiri, Noriyuki Masuda
Amrubicin has been demonstrated to be beneficial in the treatment of patients with relapsed small cell lung cancer (SCLC). The aim of the present study was to evaluate whether there is a significant difference in the efficacy of amrubicin between patients with relapsed SCLC who were previously treated with a platinum agent in combination with a topoisomerase I inhibitor, and those patients previously treated with a platinum agent in combination with a topoisomerase II inhibitor. The medical records of patients with SCLC, who were diagnosed as having relapsed following treatment with a platinum-based regimen and subsequently received amrubicin monotherapy, were retrospectively reviewed...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454309/targeting-cd146-in-combination-with-vorinostat-for-the-treatment-of-ovarian-cancer-cells
#17
Xiaoli Ma, Jiandong Wang, Jia Liu, Qingqing Mo, Xiyun Yan, Ding Ma, Hua Duan
Drug resistance is the predominant cause of mortality in late-stage patients with ovarian cancer. Histone deacetylase inhibitors (HDACis) have emerged as a novel type of second line drug with high specificity for tumor cells, including ovarian cancer cells. However, HDACis usually exhibit relatively low potencies when used as a single agent. The majority of current clinical trials are combination strategies. These strategies are more empirical than mechanism-based applications. Previously, it was reported that the adhesion molecule cluster of differentiation 146 (CD146) is significantly induced in HDACi-treated tumor cells...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454308/longikaurin-a-a-natural-ent-kaurane-suppresses-stemness-in-nasopharyngeal-carcinoma-cells
#18
Yan Yuan, Yong Du, Xiao-Ye Hu, Mei-Yuan Liu, Ji-Ke Du, Xue-Min Liu, Hong-En Yu, Tian-Zhu Wang, Jian-Xin Pu, Qian Zhong, Qing-Feng Zou
Cancer stem cells (CSCs) are a small proportion of tumor cells that may be responsible for tumor metastasis and recurrence. Our recent research indicated that longikaurin A (LK-A) exhibited anti-tumor activity in nasopharyngeal carcinoma (NPC) both in vitro and in vivo. Here, we further investigated whether LK-A could suppress the stemness of NPC cells. Sphere formation assay was used to assess the self-renewal ability of the cells treated with LK-A. Side population (SP) was determined by flow cytometry to measure the influence of LK-A on NPC SPs...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454299/rna-interference-mediated-gene-silencing-of-cyclophilin-a-enhances-the-radiosensitivity-of-paa-human-lung-adenocarcinoma-cells-in-vitro
#19
Xin Jiang, Qiao-Li Zhang, Ye-Hong Tian, Jin-Chang Huang, Guo-Lin Ma
Radiotherapy is currently the major therapeutic strategy for patients with lung cancer. However, radioresistance and various side effects continue to present challenging issues for this form of treatment. A recent study demonstrated that cyclophilin A (CyPA) was overexpressed in non-small cell lung cancer and, therefore, presents a novel potential therapeutic target. In addition, gene-radiotherapy is a novel method for cancer treatment. Therefore, the objective of the present study was to investigate the potential effect of CyPA silencing on radiosensitivity in human lung adenocarcinoma in vitro...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454272/dinitrophenyl-hapten-with-laser-immunotherapy-for-advanced-malignant-melanoma-a-clinical-study
#20
Dian-Jun Chen, Xiao-Song Li, Hui Zhao, Yan Fu, Huan-Rong Kang, Fang-Fang Yao, Jia Hu, Nan Qi, Huan-Huan Zhang, Nan Du, Wei-R Chen
The present study aimed to evaluate the efficacy and safety of in situ immunotherapy with dinitrophenyl (DNP) hapten in combination with laser therapy for patients with malignant melanoma (MM). Between February 2008 and March 2012, 72 patients with stage III or IV MM were enrolled. Patients received in situ DNP alone (n=32) or in combination with laser therapy (n=32), and each group received dacarbazine chemotherapy. The levels of peripheral cluster of differentiation (CD)4(+)CD25(+) regulatory T cells (Tregs), interleukin (IL)-10 and tumor growth factor (TGF)-β were detected by ELISA...
March 2017: Oncology Letters
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