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Cancer Biology & Therapy

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https://www.readbyqxmd.com/read/28296555/the-screening-of-a-microrna-expression-during-development-of-human-macrophages-and-mouse-dendritic-cells
#1
Eui Young So, Trisha Winchester, Toru Ouchi
There is increasing evidence showing specific roles of microRNA in cell differentiation and cancer progression. Here we examine miRNA profiles during maturation of monocytes and bone marrow-derived dendritic cells (BMDCs) in human and mouse, respectively. We have identified significant changes of various miRNA expression during monocyte and BMDC monocyte development via miRNA microarrays, confirmed by quantitative PCR. Increases in miR155 expression positively correlated with increasing maturity of monocyte and BMDC in both mouse and human microarrays, indicating its importance in development...
March 15, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28281917/brd4-inhibitor-ibet-upregulates-p27kip-cip-protein-stability-in-neuroendocrine-tumor-cells
#2
Lei Wang, Smita Matkar, Gengchen Xie, Chiying An, Xin He, Xiangchen Kong, Xiuheng Liu, Xianxin Hua
The prevalence of neuroendocrine tumors (NETs) has recently been increasing. Although various drugs such as Octreotide and its analogs show certain efficacy, NETs in many patients progress and metastasize. It is desirable to develop new interventions to improve the therapy. Here we show that human neuroendocrine tumor BON cells are resistant to several drugs commonly used for NET therapy, including Octreotide that activates somatostatin receptor-induced anti-proliferation, and Capecitabine and Temozolimide that damage DNA...
March 10, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28267380/abscopal-effect-of-metastatic-pancreatic-cancer-after-local-radiotherapy-and-granulocyte-macrophage-colony-stimulating-factor-therapy
#3
Fang Shi, Xin Wang, Feifei Teng, Li Kong, Jinming Yu
The role of immunotherapy in combination with traditional treatment regime in improving the survival of cancer patients has attracted more and more attention. Especially the abscopal effect that describes the phenomenon of localized radiotherapy leading to regression of distant unirradiated tumors and the role of enhanced radiotherapy-induced immunogenic cell death and activation of immune system have become a focus of the studies. Granulocyte-macrophage colony-stimulating factor (GM-CSF) is known a powerful stimulator of the generation, migration and activation of antigen presenting cells such as dendritic cells (DC) and macrophages...
March 7, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28278071/the-expression-of-asparaginyl-endopeptidase-promotes-growth-potential-in-epithelial-ovarian-cancer
#4
Qinyi Zhu, Meiling Tang, Xipeng Wang
Epithelial ovarian cancer (EOC) is the most common and lethal cancer-related death among females in the world. Asparaginyl endopeptidase (AEP) is a member of C13 family peptidases and expressed in the extracellular matrix and tumor cells. The aim of this article is to explore the function of asparaginyl endopeptidase in epithelial ovarian cancer. The expression of AEP was examined in 20 EOC samples, 3 EOC metastasis samples, 6 fallopian tube metastasis samples, 4 peritoneum metastasis samples and 20 benign ovarian tumor samples by immunohistochemistry...
March 3, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28278075/piecing-the-puzzle-together-docetaxel-cycles-and-current-considerations-in-the-treatment-of-metastatic-castration-resistant-prostate-cancer
#5
Hannah E Feinman, Douglas K Price, William D Figg
Docetaxel is the current first line therapy for metastatic castration-resistant prostate cancer (mCRPC), but there is no standard number of docetaxel cycles given to patients. In their post hoc analysis of the Mainsail study, de Morrée et al. show that the number of docetaxel cycles administered to a patient is a significant factor contributing to overall survival. These findings warrant further investigation into the standardization of the number of docetaxel cycles administered.
February 25, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28278074/a-clinical-study-of-21-patients-with-hemophagocytic-syndrome-in-295-cases-diagnosed-with-nasal-type-extranodal-nature-killer-t-cell-lymphoma
#6
Na Li, Li Zhang, Jie Liu, Jing Zhang, Hua-Wei Weng, Hong-Yu Zhuo, Li-Qun Zou
Nasal type, extranodal nature killer (NK)/T cell lymphoma-associated hemophagocytic syndrome (NK/T-LAHS) is a rare and fatal disorder with extremely poor prognosis. To investigate its clinical characteristics and risk factors, we retrospectively analyzed 295 patients with nasal type, extranodal nature killer/T cell lymphoma, of which 21 were diagnosed with hemophagocytic syndrome, with a cumulative incidence of 7.1%. The most frequently clinical characteristics were fever, lymphadenopathy, hepatosplenomegaly, pancytopenia, hyperferritinemia, liver dysfunction, hypertriglyceridemia, hypofibrinogenemia and evaluated lactate dehydrogenase (LDH) level...
February 25, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28278073/sequential-development-of-peripheral-t-cell-lymphoma-post-immunochemotherapy-of-diffuse-large-b-cell-lymphoma
#7
Jing-Wen Wang, Jia-Yan Chen, Chen Lu, Xi Tang
Reports of sequential occurrence of two or more types of lymphoma are rare, especially when they involve different cell lineages. Herein, we report a rare case of sequential development of peripheral t-cell lymphoma following treatment of diffuse large B cell lymphoma. In a 73-year-old Chinese male patient, diffuse large B-cell lymphoma (DLBCL) was diagnosed in September 2011 based on the result of a tongue biopsy. Afterwards, he received rituximab combined with chemotherapy and local radiotherapy. Though he achieved completed remission, he had a new symptom of one enlarged left inguinal lymph node in November of 2015...
February 25, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28278072/chronic-inflammation-confers-to-the-metabolic-reprogramming-associated-with-tumorigenesis-of-colorectal-cancer
#8
Dingding Qu, Liangliang Shen, Shaoqing Liu, Huichen Li, Yongzheng Ma, Ruohan Zhang, Kaichun Wu, Libo Yao, Jipeng Li, Jian Zhang
It's well known that microenvironment inflammatory signals could promote cancer development and progression. In colorectal cancer (CRC), chronic inflammation is a major driving mechanism for the development of CRC in patients having long-standing inflammatory bowel disease (IBD). Though it has been addressed that cancer cells ferment much of their glucose supply into lactate regardless of the presence of oxygen, it is unclear whether cell metabolism has been reprogramed during the process from IBD to CRC. Herein, with dextran sulfate sodium (DSS)-induced mouse colitis model, we found that inflammation upregulated key glycolytic enzymes expression via activation of STAT3/c-Myc signaling pathway...
February 25, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28278078/presence-of-novel-compound-bcr-abl-mutations-in-late-chronic-and-advanced-phase-imatinib-sensitive-cml-patients-indicates-their-possible-role-in-cml-progression
#9
Afia Muhammad Akram, Zafar Iqbal, Tanveer Akhtar, Ahmed Mukhtar Khalid, Muhammad Farooq Sabar, Mahmood Hussain Qazi, Zeba Aziz, Nadia Sajid, Aamer Aleem, Mahmood Rasool, Muhammad Asif, Saleh Aloraibi, Khaled Aljamaan, Mudassar Iqbal
BCR-ABL kinase domain (KD) mutations are well known for causing resistance against tyrosine kinase inhibitors (TKIs) and disease progression in chronic myeloid leukemia (CML). In recent years, compound BCR-ABL mutations have emerged as a new threat to CML patients by causing higher degrees of resistance involving multiple TKIs, including ponatinib. However, there are limited reports about association of compound BCR-ABL mutations with disease progression in imatinib (IM) sensitive CML patients. Therefore, we investigated presence of ABL-KD mutations in chronic phase (n = 41), late chronic phase (n = 33) and accelerated phase (n = 16) imatinib responders...
February 21, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28278077/anti-angiogenic-treatment-promotes-triple-negative-breast-cancer-invasion-via-vasculogenic-mimicry
#10
Huizhi Sun, Danfang Zhang, Zhi Yao, Xian Lin, Jiameng Liu, Qiang Gu, Xueyi Dong, Fang Liu, Yi Wang, Nan Yao, Siqi Cheng, Linqi Li, Shuya Sun
Agents that target angiogenesis have shown limited efficacy for human triple-negative breast cancer (TNBC) in clinical trials. Along with endothelium-dependent vessels, there is also vasculogenic mimicry (VM) in the microcirculation of malignant tumors. The role of VM is not completely understood regarding anti-angiogenic treatment. In this study, human TNBC MDA-MB-231 and Hs578T and non-TNBC MCF-7 and BT474 tumor-bearing mice were treated with sunitinib, an anti-angiogenic drug, using a clinically relevant schedule...
February 21, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28278076/adenovirus-based-strategies-enhance-antitumor-capability-through-p53-mediated-downregulation-of-mgmt-in-uveal-melanoma
#11
Xun Li, Ling Yuan, Jianfeng Zhao, Hui Yang, Yunzhi Yang, Yanfei Zhang, Biyun Cun
Uveal melanoma (UM) is an intractable disease with a low survival rates, despite adequate local treatment, as a result of its metastatic characteristics. Thus, new therapeutic strategies, including combinations of novel gene therapy and traditional chemotherapy, are under investigation to improve long-term prognosis. Dacarbazine or DTIC, an alkylating agent which results in DNA methylation, is most commonly used to treat melanoma but the response is very limited. The O6-methylguanine DNA methyl transferase (MGMT), a DNA repair protein, is involved in chemoresistance in DTIC treatment...
February 21, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28278081/correlative-analysis-of-plasma-sn-38-levels-and-dpd-activity-with-outcomes-of-folfiri-regimen-for-metastatic-colorectal-cancer-with-ugt1a1-28-and-6-wild-type-and-its-implication-for-individualized-chemotherapy
#12
Xun Cai, Chuan Tian, Liwei Wang, Rongyuan Zhuang, Xiaowei Zhang, Yuanbiao Guo, Hongmin Lu, Hui Wang, Xiaoyu Li, Junwei Gao, Qi Li, Chungang Wang
It remains uncertain whether there is an correlation between clinical pharmacokinetic parameters and outcomes for metastatic colorectal cancer especially with UGT1A1 *28 and *6 wild type (*1/*1-*1/*1) for serious events associated with Irinotecan are largely excluded. This study retrospectively analyzed the relationship between Irinotecan metabolite levels and outcomes of UGT1A1 *1/*1-*1/*1 genotype arrangement. Blood samples (n = 244) were collected for analysis of plasma DPD activity (before first chemotherapy) and SN-38 levels (1...
February 17, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28278080/hypoxia-promotes-chemotherapy-resistance-by-down-regulating-ska1-gene-expression-in-human-osteosarcoma
#13
Qiong Ma, Yinglong Zhang, Tao Liu, Kuo Jiang, Yanhua Wen, Qingyu Fan, Xiuchun Qiu
Drug resistance has always been the main problem in osteosarcoma treatment, and hypoxia seems to be one of the many causes for drug resistance. Therefore, in this study, we investigated how hypoxia triggers chemotherapy resistance in osteosarcoma. We first screened hypoxia- and normoxia- cultured osteosarcoma cells in silico to identify the differentially expressed genes specifically related to drug resistance. This led to the identification of spindle and kinetochore associated complex subunit 1 (SKA1) as a probable gene of interest...
February 17, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28278079/breast-carcinoma-associated-with-prolactinoma-a-case-report
#14
Yurong Zheng, Wenju Mo, Yang Yu, Dehong Zou, Xiangming He, Xianghou Xia, Jiejie Hu
We report a 28-year-old woman who presented with a 6-year history of milk-like discharge from both of her nipples and was diagnosed with prolactinoma based on computed tomography (CT) findings and serum prolactin level. Further breast examination revealed a mass located in the upper outer region of the left breast. She underwent subtotal pituitary tumor resection. Thereafter, modified radical mastectomy was performed for left breast cancer. Twelve years after treatment, prolactinoma recurrence was detected, and bromocriptine therapy was administered...
February 17, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28278082/caspase-8-polymorphisms-contribute-to-the-prognosis-of-advanced-lung-adenocarcinoma-patients-after-platinum-based-chemotherapy
#15
Di Liu, Wen Xu, Xi Ding, Yang Yang, Yanlin Lu, Ke Fei, Bo Su
Lung cancer is the leading cause of cancer deaths in China, and about 60% of the cases are diagnosed with histological adenocarcinoma. The caspase 8 (CASP8) gene is a critical initiator of the extrinsic apoptosis pathway. To explore the relationship between tagSNPs or haplotypes of CASP8 and the efficacy of platinum-based chemotherapy in advanced lung adenocarcinoma patients of China, we recruited 555 advanced adenocarcinoma patients. We extracted the genomic DNA from patients' peripheral blood samples and sequenced tagSNPs of CASP8...
February 16, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28121262/detection-of-mutant-kras-and-tp53-dna-in-circulating-exosomes-from-healthy-individuals-and-patients-with-pancreatic-cancer
#16
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
#17
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
#18
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/28112582/the-allosteric-akt-inhibitor-mk2206-decreases-tumor-growth-and-invasion-in-patient-derived-xenografts-of-endometrial-cancer
#19
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
#20
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
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