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Cancer Biology & Therapy

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https://www.readbyqxmd.com/read/28121262/detection-of-mutant-kras-and-tp53-dna-in-circulating-exosomes-from-healthy-individuals-and-patients-with-pancreatic-cancer
#1
Sujuan Yang, Sara P Y Che, Paul Kurywchak, Jena L Tavormina, Liv B Gansmo, Pedro Correa de Sampaio, Michael Tachezy, Maximilian Bockhorn, Florian Gebauer, Amanda R Haltom, Sonia A Melo, Valerie S LeBleu, Raghu Kalluri
Pancreatic cancer presents with a dismal mortality rate and is in urgent need of methods for early detection with potential for timely intervention. All living cells, including cancer cells, generate exosomes. We previously discovered double stranded genomic DNA in exosomes derived from the circulation of pancreatic cancer patients, which enabled the detection of prevalent mutations associated with the disease. Here, we report a proof-of-concept study that demonstrates the potential clinical utility of circulating exosomal DNA for identification of KRAS(G)(12)(D) and TP53(R)(273)(H) mutations in patients with pancreas-associated pathologies, including pancreatic ductal adenocarcinoma (PDAC), chronic pancreatitis (CP) and intraductal papillary mucinous neoplasm (IPMN), and in healthy human subjects...
January 25, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28121221/the-association-between-circulating-tumor-cells-and-epstein-barr-virus-activation-in-patients-with-nasopharyngeal-carcinoma
#2
Caiyun He, Xinjun Huang, Xuan Su, Tao Tang, Xiao Zhang, Jiangjun Ma, Xiang Guo, Xing Lv
BACKGROUND: Circulating tumor cells (CTCs) and microemboli (CTM) are attracting increasing attention in medical biology and clinical practice. However, the clinical relevance of CTCs in nasopharyngeal carcinoma (NPC) has not yet been ascertained, and no study has focused on the influence of Epstein-Barr virus (EBV) status on CTCs in NPC patients. These issues were therefore examined. METHODS: Peripheral blood samples were prospectively obtained from 33 NPC patients before treatment...
January 25, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28118070/endometrial-cancer-with-congenital-uterine-anomalies-three-case-reports-and-a-literature-review
#3
Jinping Gao, Jintian Zhang, Wenyan Tian, Fei Teng, Huiying Zhang, Xuhong Zhang, Yingmei Wang, Fengxia Xue
: Background Uterine malformation is a rare deformity in woman, and only a few cases concerning endometrial cancer arising in patients with congenital uterine anomalies have been reported. Herein, we present three cases of endometrial cancer with different congenital uterine anomalies, and review studies involving congenital uterine anomalies associated with endometrial cancer in the past 25 years, in order to identify similarities and differences in clinicopathologic characteristics and prognosis between endometrial cancer associated with uterine anomalies, and normal uterus...
January 24, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28118064/co-expression-network-analysis-of-long-noncoding-rnas-incrnas-and-cancer-genes-revealssfta1p-and-casc2abnormalities-in-lung-squamous-cell-carcinoma
#4
Guangqing Huang, Zun-Ping Ke, Hai-Bo Hu, Biao Gu
Lung squamous cell carcinoma(LSCC) is the most common and aggressive lung tumor with poor clinical outcome. Previously studies showed that deregulation of long noncoding RNAs (lncRNAs) were involved in LSCC. We intended to figure out the role of lncRNAs in the regulation process of cancer-related genes and pathways they are involved. Data of 552 samples, including 501 cancer samples and 51 normal ones, were extracted from The Cancer Genome Atlas (TCGA). Differentially expressed lncRNAs (DEIs) were screened out (FDR<0...
January 24, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28112582/the-allosteric-akt-inhibitor-mk2206-decreases-tumor-growth-and-invasion-in-patient-derived-xenografts-of-endometrial-cancer
#5
Abigail Winder, Kenji Unno, Yanni Yu, John Lurain, J Julie Kim
The purpose of this study was to test the effect of MK2206, an allosteric inhibitor of AKT, on the growth and invasion of patient-derived xenografts (PDX) of endometrial cancer. Three PDX lines, USC1 (uterine serous), EEC2 (endometrioid grade 2) and EEC4 (endometrioid grade 3) of endometrial cancer were grafted under the renal capsule of NSG mice. After 2 weeks of tumor growth the mice were treated with vehicle or 120mg/kg MK2206 twice a week for three weeks. Growth of all three PDX lines of different type and grade was significantly inhibited in response to MK2206 compared to vehicle control...
January 23, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28106481/mir-320a-effectively-suppresses-lung-adenocarcinoma-cell-proliferation-and-metastasis-by-regulating-stat3-signals
#6
Qing Lv, Jin-Xia Hu, You-Jie Li, Ning Xie, Dan-Dan Song, Wei Zhao, Yun-Fei Yan, Bao-Sheng Li, Ping-Yu Wang, Shu-Yang Xie
MicroRNAs play important roles in tumorigenesis of various types of cancers. MiR-320a can inhibits cell proliferation of some cancers, but the biological roles of miR-320a in lung cancer need to be further studied. Here, we investigated the roles of miR-320a in suppressing the proliferation of lung adenocarcinoma cells. MiR-320a treatment was found to effectively suppresse LTEP-a-2 and A549 cell proliferation, and induce more apoptotic cells induced by irradiation compared with control treatment. Our results also showed that miR-320a, as a novel miRNA, directly regulated signal transducer and activator of transcription 3 (STAT3) and its signals, such as Bcl-2, Bax, and Caspase 3...
January 20, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28102729/chronic-myelomonocytic-leukemia-with-double-mutations-in-dnmt3a-and-flt3-itd-treated-with-decitabine-and-sorafenib
#7
Jia Gu, Zhiqiong Wang, Min Xiao, Xia Mao, Li Zhu, Ying Wang, Wei Huang
Chronic myelomonocytic leukemia (CMML) is a heterogeneous neoplastic hematologic disorder with worse overall survival. Half of CMML have mutations, but case with concomitant mutations of DNA methyltransferase 3A (DNMT3A) and Internal tandem duplications of the juxtamembrane domain of FLT3 (FLT3-ITD) in CMML was not reported before. We reported a 51-year-old man who had CMML with concomitant mutations in DNMT3A and FLT3-ITD.The patient received decitabine and sorafenib combined treatment. In this report, we reviewed DNMT3A mutation and FLT3 mutation, and we reviewed treatment of decitabine and sorafenib...
January 19, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28095111/increased-numb-protein-expression-predicts-poor-clinical-outcomes-in-esophageal-squamous-cell-carcinoma-patients
#8
Zhenguo Liu, Canqiao Luo, Weixiong Yang, Kefeng Wang, Chuang Hu, Jianyong Zou, Hua Zhu, Liwu Fu, Jing Nie, Chao Cheng
Numb is a protein whose asymmetric segregation during cell division determines cell fate and has numerous functions relevant to multiple fields of study, including developmental neurobiology and cancer biology. Little is known about the role of Numb in esophageal squamous cell carcinoma (ESCC), the predominant histological esophageal carcinoma in Asian populations. In this study, we focused on the expression and biological functions of Numb in the context of ESCC. From analysis of tissue microarrays with 212 patients, it was found that Numb was significantly upregulated in ESCC tissues compared to corresponding non-cancerous tissues...
January 17, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28075192/loss-of-monocyte-chemoattractant-protein-1-expression-delays-mammary-tumorigenesis-and-reduces-localized-inflammation-in-the-c3-1-sv40tag-triple-negative-breast-cancer-model
#9
Taryn L Cranford, Kandy T Velázquez, Reilly T Enos, Jackie E Bader, Meredith S Carson, Ioulia Chatzistamou, Mitzi Nagarkatti, E Angela Murphy
Monocyte chemoattractant protein 1 (MCP-1) has been implicated as a major modulator in the progression of mammary tumorigenesis, largely due to its ability to recruit macrophages to the tumor microenvironment. Macrophages are key mediators in the connection between inflammation and cancer progression and have been shown to play an important role in tumorigenesis. Thus, MCP-1 may be a potential therapeutic target in inflammatory and difficult-to-treat cancers such as triple negative breast cancer (TNBC). We examined the effect of MCP-1 depletion on mammary tumorigenesis in a model of TNBC...
January 11, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28045618/tumor-markers-for-early-diagnosis-for-brain-metastasis-of-hepatocellular-carcinoma-a-case-series-and-literature-review-for-effective-loco-regional-treatment
#10
Kenya Kamimura, Yuji Kobayashi, Yoshifumi Takahashi, Hiroyuki Abe, Daisuke Kumaki, Takeshi Yokoo, Hiroteru Kamimura, Norihiro Sakai, Akira Sakamaki, Satoshi Abe, Masaaki Takamura, Hirokazu Kawai, Satoshi Yamagiwa, Shuji Terai
Intrahepatic lesions of hepatocellular carcinoma (HCC) have been controlled by significant advances in treatment using loco-regional therapies, including, surgery, ablative therapy, catheter-based chemotherapy, and embolization. Consequently, the number of patients with extrahepatic metastatic lesions has increased. Their prognosis remains poor with approximately <1 y of survival from the time of diagnosis. A molecularly targeted drug, sorafenib, have been used to treat extrahepatic lesions and shown the prolonged survival time...
January 3, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28045589/dietary-selenium-protects-adiponectin-knockout-mice-against-chronic-inflammation-induced-colon-cancer
#11
Arpit Saxena, Raja Fayad, Kamaljeet Kaur, Samantha Truman, Julian Greer, James A Carson, Anindya Chanda
Selenium (Se) is an essential dietary micronutrient that has been examined for protection against different types of cancers including colon cancer. Despite an established inverse association between Se and chronic inflammation induced colon cancer (CICC), the mechanistic understanding of Se's protective effects requires additional in-vivo studies using preclinical animal models of CICC. Adiponectin (APN) is an adipocytokine that is protective against CICC as well. However, its role in the anti-mutagenic effects of the Se-diet remains unknown...
January 3, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28045576/combination-therapy-with-l-arginine-and-%C3%AE-pd-l1-antibody-boosts-immune-response-against-osteosarcoma-in-immunocompetent-mice
#12
Xiaojun He, Haiqing Lin, Li Yuan, Binghao Li
L-arginine supplementation was recently proved to promote the function of immune cells, especially T-cells, by facilitating T-cell proliferation, differentiation and survival in vivo. Cytotoxic CD8(+) plays a crucial role in modulating anti-cancer response mediated by the immune system, but was restricted by exhaustion. Thus, we hypothesized that L-arginine, in combination with α-PD-L1 antibody, may provide a favored environment for T-cell response against osteosarcoma. Immunocompetent BALB/c mouse models bearing orthotopic and metastatic osteosarcoma were established to validate this conjecture...
January 3, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28045569/direct-measurement-of-hypoxia-in-a-xenograft-multiple-myeloma-model-by-optical-resolution-photoacoustic-microscopy
#13
Toru Imai, Barbara Muz, Cheng-Hung Yeh, Junjie Yao, Ruiying Zhang, Abdel Kareem Azab, Lihong Wang
Using photoacoustic microscopy (PAM), we evaluated non-invasively oxygenation and vascularization in vivo due to multiple myeloma (MM) progression. Mice injected with MM.1S-GFP were monitored with a fluorescence microscope for tumor progression. In vivo PAM of the cerebral bone marrow quantified the total oxygen saturation (sO2). At 28 days after the MM cell injection, the total sO2 had decreased by half in the developing tumor regions, while in the non-tumor regions it had decreased by 20% compared with the value at one day post MM injection...
January 3, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28192035/corrigendum
#14
(no author information available yet)
No abstract text is available yet for this article.
January 2, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28152324/efficacy-of-repeated-low-dose-bevacizumab-treatment-with-long-dosing-interval-for-radiation-induced-brain-necrosis-a-case-report
#15
Xiangying Meng, Rugang Zhao, Shikai Wu, Ge Shen, Lijuan Ding, Bing Sun, Junliang Wang
A 40-year-old Chinese female patient, with radiation-induced brain necrosis after radiosurgery, was treated 6 times with a single dose of 200 mg (3.27 mg/kg) bevacizumab each time, and with an interval of 12-16 weeks between each treatment. Neurological symptoms such as dizziness, fatigue, and headache disappeared after each administration of bevacizumab. The results suggest that repeated bevacizumab treatment using a low-dose and long-dosing interval may significantly alleviate radiation necrosis and its symptoms...
January 2, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28071969/curcumin-induces-apoptosis-in-human-leukemic-cell-lines-through-an-ifit2-dependent-pathway
#16
Yonglu Zhang, Yunyuan Kong, Shuyuan Liu, Lingbing Zeng, Lagen Wan, Zhanglin Zhang
Curcumin, the primary bioactive component isolated from turmeric, has been shown to possess variety of biologic functions including anti-cancer activity. However, molecular mechanisms in different cancer cells are various. In the present study, we demonstrated that curcumin induced G2/M cell cycle arrest and apoptosis by increasing the expression levels of cleaved caspase-3, cleaved PARP and decreasing the expression of BCL(-)2 in U937 human leukemic cells but not in K562 cells. We found some interferon induced genes, especially interferon-induced protein with tetratricopeptide repeats 2 (IFIT2), were significantly upregulated when treated with curcumin in U937 cells by gene expression chip array, and further confirmed that the expression of IFIT2 was obviously higher in U937 than that in K562 cells by Western blot assay...
January 2, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28059588/corrigendum
#17
(no author information available yet)
No abstract text is available yet for this article.
January 2, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28055304/synergistic-effect-of-cytokine-induced-killer-cell-with-valproate-inhibits-growth-of-hepatocellular-carcinoma-cell-in-a-mouse-model
#18
Dong Hyeon Lee, Joon Yeul Nam, Young Chang, Hyeki Cho, Seong Hee Kang, Young Youn Cho, EunJu Cho, Jeong-Hoon Lee, Su Jong Yu, Yoon Jun Kim, Jung-Hwan Yoon
OBJECTIVE: Long-term prognosis of hepatocellular carcinoma (HCC) remains poor owing to the lack of treatment options for advanced HCC. Cytokine-induced killer (CIK) cells are ex vivo expanded T lymphocytes expressing both NK- and T-cell markers. CIK cell therapy alone is insufficient for treating advanced HCC. Thus, this study aimed to determine whether treatment with CIK cells combined with valproic acid (VPA) could provide a synergistic effect to inhibit tumor growth in a mouse model of HCC...
January 2, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28055291/metuzumab-enhanced-chemosensitivity-and-apoptosis-in-non-small-cell-lung-carcinoma
#19
Fei Feng, Bin Wang, Xiuxuan Sun, Yumeng Zhu, Hao Tang, Gang Nan, Lijuan Wang, Bo Wu, Muren Huhe, Shuangshuang Liu, Tengyue Diao, Rong Hou, Yang Zhang, Zheng Zhang
Targeted therapeutics is used as an alternative treatment of non-small cell lung cancer (NSCLC); however, treatment effect is far from being satisfactory, and therefore identification of new targets is needed. We have previously shown that metuzumab inhibit tumor growth in vivo. The present study was performed to investigate the anti-tumor efficacy of metuzumab combined with gemcitabine and cisplatin (GP), paclitaxel and cisplatin (TP) or navelbine and cisplatin (NP) regimens in multiple NSCLC cell lines. Our results demonstrate that, in comparison to single agent metuzumab or GP treated cells, metuzumab combined with GP display inhibitory effects on tumor growth...
January 2, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/27981892/phenethyl-isothiocyanate-suppresses-the-metastasis-of-ovarian-cancer-associated-with-the-inhibition-of-crm1-mediated-nuclear-export-and-mtor-stat3-pathway
#20
Wen Yu Shao, Yong Liang Yang, Huan Yan, Qian Huang, Kai Jiang Liu, Shu Zhang
Epithelial ovarian cancer is prone to metastasizing at an early stage, but their mechanisms remain unclear. CRM1 is an important nuclear exportin and inhibitors targeting CRM1 has been explored as an anti-cancer strategy. In previous study, we observed that PEITC could combine with the hydrophobic pocket of CRM1. In this study, we focused on the effects of PEITC on EOC and its mechanisms. Results showed that IC50 values of PEITC on SKOV3 and HO8910 cell line were 42.14 μM and 37.29 μM, respectively. PEITC inhibits the migration and invasion of SKOV3 and HO8910 cells in vitro...
January 2, 2017: Cancer Biology & Therapy
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