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BMC Cancer

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https://www.readbyqxmd.com/read/30012115/the-detrimental-effects-of-radiotherapy-interruption-on-local-control-after-concurrent-chemoradiotherapy-for-advanced-t-stage-nasopharyngeal-carcinoma-an-observational-prospective-analysis
#1
Ji-Jin Yao, Ya-Nan Jin, Si-Yang Wang, Fan Zhang, Guan-Qun Zhou, Wang-Jian Zhang, Zhi-Bin, Cheng, Jun Ma, Zhen-Yu Qi, Ying Sun
BACKGROUND: Previous studies have reported radiotherapy interruption (RTI) is associated with poor local control in two-dimensional radiotherapy (2DRT) era. However, it remains unclear whether RTI still affects local control for advanced T stage (T3-4) in the intensity-modulated radiation therapy (IMRT) era. We aim to evaluate whether RTI affects local control for T3-4 NPC treated with definitive IMRT. METHODS: In this observational prospective study, 447 T3-4 NPC patients treated with IMRT plus concurrent chemotherapy were included...
July 16, 2018: BMC Cancer
https://www.readbyqxmd.com/read/30012111/akt-isoform-specific-expression-and-activation-across-cancer-lineages
#2
Jue Wang, Wei Zhao, Huifang Guo, Yong Fang, Sarah Elizabeth Stockman, Shanshan Bai, Patrick Kwok-Shing Ng, Yang Li, Qinghua Yu, Yiling Lu, Kang Jin Jeong, Xiaohua Chen, Meng Gao, Jiyong Liang, Wentao Li, Xingsong Tian, Eric Jonasch, Gordon B Mills, Zhiyong Ding
BACKGROUND: Aberrant AKT activation is prevalent across human cancer lineages, providing an important therapeutic target. AKT comprises three isoforms that mediate critical non-redundant, even opposing functions in cancer pathophysiology. Therefore, targeting specific AKT isoforms in particular cancers may be more effective than pan-AKT inhibition while avoiding disadvantages of pan-AKT inhibition. Currently, AKT isoform-specific expression and activation in cancer are not clearly characterized...
July 16, 2018: BMC Cancer
https://www.readbyqxmd.com/read/30012106/cxcr4-and-its-ligand-cxcl12-display-opposite-expression-profiles-in-feline-mammary-metastatic-disease-with-the-exception-of-her2-overexpressing-tumors
#3
Cláudia S Marques, Ana Rita Santos, Andreia Gameiro, Jorge Correia, Fernando Ferreira
BACKGROUND: The receptor CXCR4 and its ligand CXCL12 play crucial roles in breast cancer. Despite the fact that the spontaneous feline mammary carcinoma (FMC) is considered a suitable model for breast cancer studies, the importance of the CXCR4/CXCL12 axis in FMC is completely unknown. Therefore, this work aims to elucidate the role of CXCR4 and its ligand in the progression of FMC and metastatic disease. METHODS: CXCR4 and CXCL12 expression was analyzed by immunohistochemistry and immunofluorescence on primary tumors (PT), regional and distant metastases of female cats with mammary carcinoma and correlated with serum CXCL12 levels, tumor molecular subtypes and clinicopathological features...
July 16, 2018: BMC Cancer
https://www.readbyqxmd.com/read/30005630/diagnostic-value-of-intraoperative-ultrasonography-in-assessing-thoracic-recurrent-laryngeal-nerve-lymph-nodes-in-patients-with-esophageal-cancer
#4
Jianwei Wang, Min Liu, Jingxian Shen, Haichao Ouyang, Xiuying Xie, Ting Lin, Anhua Li, Hong Yang
BACKGROUD: The incidence of recurrent laryngeal nerve (RLN) injury has increased due to RLN lymph node dissection. The aim of this study was to evaluate the ability of intraoperative ultrasonography (IU) to detect RLN nodal metastases in esophageal cancer patients. METHODS: Sixty patients with esophageal cancer underwent IU, computed tomography (CT), and endoscopic ultrasonography (EUS) to assess for RLN nodal metastasis. Sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) were compared...
July 13, 2018: BMC Cancer
https://www.readbyqxmd.com/read/30005627/chromoanasynthesis-is-a-common-mechanism-that-leads-to-erbb2-amplifications-in-a-cohort-of-early-stage-her2-breast-cancer-samples
#5
George Vasmatzis, Xue Wang, James B Smadbeck, Stephen J Murphy, Katherine B Geiersbach, Sarah H Johnson, Athanasios G Gaitatzes, Yan W Asmann, Farhad Kosari, Mitesh J Borad, Daniel J Serie, Sarah A McLaughlin, Jennifer M Kachergus, Brian M Necela, E Aubrey Thompson
BACKGROUND: HER2 positive (HER2+) breast cancers involve chromosomal structural alterations that act as oncogenic driver events. METHODS: We interrogated the genomic structure of 18 clinically-defined HER2+ breast tumors through integrated analysis of whole genome and transcriptome sequencing, coupled with clinical information. RESULTS: ERBB2 overexpression in 15 of these tumors was associated with ERBB2 amplification due to chromoanasynthesis with six of them containing single events and the other nine exhibiting multiple events...
July 13, 2018: BMC Cancer
https://www.readbyqxmd.com/read/30005626/prognostic-and-clinicopathological-significance-of-mlkl-expression-in-cancer-patients-a-meta-analysis
#6
Binwu Hu, Deyao Shi, Xiao Lv, Songfeng Chen, Qin Huang, Mao Xie, Zengwu Shao
BACKGROUND: MLKL is the most important executor of necroptosis pathway. Recent studies have demonstrated that MLKL could serve as a potential prognostic biomarker for cancer patients. However, most studies reported so far are limited in discrete outcome and sample size. METHODS: We systematically searched PubMed, Embase, Web of Science and CNKI to obtain all relevant articles about the prognostic value of abnormally expressed MLKL in patients with any type of tumor...
July 13, 2018: BMC Cancer
https://www.readbyqxmd.com/read/30005623/levels-and-prognostic-impact-of-circulating-markers-of-inflammation-endothelial-activation-and-extracellular-matrix-remodelling-in-patients-with-lung-cancer-and-chronic-obstructive-pulmonary-disease
#7
Janna Berg, Ann Rita Halvorsen, May-Bente Bengtson, Kristin A Taskén, Gunhild M Mælandsmo, Arne Yndestad, Bente Halvorsen, Odd Terje Brustugun, Pål Aukrust, Thor Ueland, Åslaug Helland
BACKGROUND: The development of both chronic obstructive pulmonary disease (COPD) and lung cancer (LC) is influenced by smoking related chronic pulmonary inflammation caused by an excessive innate immune response to smoke exposure. In addition, the smoking induced formation of covalent bonds between the carcinogens and DNA and the accumulation of permanent somatic mutations in critical genes are important in the carcinogenic processes, and can also induce inflammatory responses. How chronic inflammation is mirrored by serum markers in COPD and LC and if these markers reflect prognosis in patients with LC is, however, largely unknown...
July 13, 2018: BMC Cancer
https://www.readbyqxmd.com/read/30001718/distribution-patterns-of-foot-and-ankle-tumors-a-university-tumor-institute-experience
#8
Andreas Toepfer, Norbert Harrasser, Maximiliane Recker, Ulrich Lenze, Florian Pohlig, Ludger Gerdesmeyer, Rüdiger von Eisenhart-Rothe
BACKGROUND: Bone and soft tissue masses of the foot and ankle are not particularly rare but true neoplasia has to be strictly differentiated from pseudotumorous lesions. Diagnosis is often delayed as diagnostic errors are more common than in other regions. Awareness for this localization of musculoskeletal tumors is not very high and neoplasia is often not considered. The purpose of this study is to provide detailed information on the incidence and distribution patterns of foot and ankle tumors of a university tumor institute and propose a simple definition to facilitate comparison of future investigations...
July 13, 2018: BMC Cancer
https://www.readbyqxmd.com/read/30001714/a-pilot-study-to-profile-salivary-angiogenic-factors-to-detect-head-and-neck-cancers
#9
L van der Merwe, Y Wan, H J Cheong, C Perry, C Punyadeera
BACKGROUND: Early diagnosis of head and neck squamous cell carcinoma (HNSCCs) is an appealing way to increase survival rates in these patients as well as to improve quality of life post-surgery. Angiogenesis is a hallmark of tumor initiation and progression. We have investigated a panel of angiogenic factors in saliva samples collected from HNSCC patients and controls using the Bio-Plex ProTM assays. METHODS: We have identified a panel of five angiogenic proteins (sEGFR, HGF, sHER2, sIL-6Ra and PECAM-1) to be elevated in the saliva samples collected from HNSCC patients (n = 58) compared to a control cohort (n = 8 smokers and n = 30 non-smokers)...
July 13, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29996904/quality-indicators-of-clinical-cancer-care-for-prostate-cancer-a-population-based-study-in-southern-switzerland
#10
Laura Ortelli, Alessandra Spitale, Luca Mazzucchelli, Andrea Bordoni
BACKGROUND: Quality of cancer care (QoCC) has become an important item for providers, regulators and purchasers of care worldwide. Aim of this study is to present the results of some evidence-based quality indicators (QI) for prostate cancer (PC) at the population-based level and to compare the outcomes with data available in the literature. METHODS: The study included all PC diagnosed on a three years period analysis (01.01.2011-31.12.2013) in the population of Canton Ticino (Southern Switzerland) extracted from the Ticino Cancer Registry database...
July 11, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29996816/understanding-adjuvant-endocrine-therapy-persistence-in-breast-cancer-survivors
#11
Leah K Lambert, Lynda G Balneaves, A Fuchsia Howard, Stephen K Chia, Carolyn C Gotay
BACKGROUND: Adjuvant endocrine therapy (AET) significantly decreases the risk of breast cancer recurrence and mortality. Notwithstanding the demonstrated efficacy of AET, 31-73% of breast cancer survivors do not persist with AET. The purpose of this study was to explore breast cancer survivors' experiences and perspectives of persisting with AET and to identify the psychosocial and healthcare system factors that influence AET persistence. METHODS: Informed by interpretive descriptive methodology and relational autonomy theory, individual interviews were conducted with 22 women diagnosed with early-stage breast cancer who had been prescribed AET...
July 11, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29996811/bet-bromodomain-inhibition-promotes-de-repression-of-txnip-and-activation-of-ask1-mapk-pathway-in-acute-myeloid-leukemia
#12
Yafeng Zhou, Jianbiao Zhou, Xiao Lu, Tuan-Zea Tan, Wee-Joo Chng
BACKGROUND: Targeted therapy has always been the focus in developing therapeutic approaches in cancer, especially in the treatment of acute myeloid leukemia (AML). A new small molecular inhibitor, JQ1, targeting BRD4, which recognizes the acetylated lysine residues, has been shown to induce cell cycle arrest in different cancers by inhibiting MYC oncogene. However, the downstream signaling of MYC inhibition induced by BET inhibitor is not well understood. METHODS: In this study, we explored the more mechanisms of JQ1-induced cell death in acute myeloid lukemia and downstream signaling of JQ1...
July 11, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29986702/characterization-of-primary-normal-and-malignant-breast-cancer-cell-and-their-response-to-chemotherapy-and-immunostimulatory-agents
#13
Anna A Nushtaeva, Grigory A Stepanov, Dmitry V Semenov, Evgeny S Juravlev, Evgenia A Balahonova, Alexey V Gerasimov, Sergey V Sidorov, Eugeniy I Savelyev, Elena V Kuligina, Vladimir A Richter, Olga A Koval
BACKGROUND: The phenomenon of chemotherapy-resistant cancers has necessitated the development of new therapeutics as well as the identification of specific prognostic markers to predict the response to novel drugs. Primary cancer cells provide a model to study the multiplicity of tumourigenic transformation, to investigate alterations of the cellular response to various molecular stimuli, and to test therapeutics for cancer treatment. METHODS: Here, we developed primary cultures of human breast tissue - normal cells (BN1), cancer cells (BC5), and cells from a chemotherapy-treated tumour (BrCCh1) to compare their response to conventional chemotherapeutics and to innate immunity stimulators with that of the immortalized breast cells MCF7, MDA-MB-231, and MCF10A...
July 9, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29986697/interleukin-8-is-a-biomarker-of-telomerase-inhibition-in-cancer-cells
#14
Peter Solomon, Yuying Dong, Shaillay Dogra, Romi Gupta
BACKGROUND: Telomerase activity is required for both initiation and maintenance of tumorigenesis and over 90% cancers overexpress telomerase. Therefore, telomerase targeting has emerged as a potential strategy for cancer treatment. In agreement with this, several telomerase inhibitors are being tested for cancer treatment and have shown some promise. However, because of the variability in response between the cancer patients, it is important to identify biomarkers that allow for distinguishing cancers that are responsive to telomerase inhibition from the cancers that are not...
July 9, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29986691/clinical-response-and-pharmacokinetics-of-bendamustine-as-a-component-of-salvage-r-b-o-ad-therapy-for-the-treatment-of-primary-central-nervous-system-lymphoma-pcnsl
#15
Therasa Kim, He Yun Choi, Hyun-Seo Lee, Sung-Hoon Jung, Jae-Sook Ahn, Hyeoung-Joon Kim, Je-Jung Lee, Hee-Doo Yoo, Deok-Hwan Yang
BACKGROUND: A relatively high proportion of patients diagnosed with primary CNS lymphoma will experience recurrent disease, yet therapy options are limited in salvage therapy. This is the first study to evaluate a bendamustine-based combination regimen for the treatment of relapsed/refractory PCNSL and to characterize bendamustine pharmacokinetics in the human CSF. METHODS: Patients received bendamustine 75 mg/m2 for two days as part of R-B(O)AD administered intravenously every 4 weeks for up to 4 cycles...
July 9, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29986672/improving-medication-adherence-with-adjuvant-aromatase-inhibitor-in-women-with-breast-cancer-study-protocol-of-a-randomised-controlled-trial-to-evaluate-the-effect-of-short-message-service-sms-reminder
#16
Yunxin He, Eng Hooi Tan, Andrea Li Ann Wong, Chuan Chien Tan, Patrick Wong, Soo Chin Lee, Bee Choo Tai
BACKGROUND: Medication adherence refers to whether a patient takes medication according to the frequency prescribed, or continues to take a prescribed medication. Inadequate adherence to medication may cause alterations in risk-benefit ratios, resulting in reduced benefits, increased risks or both, and is significantly associated with adverse clinical outcomes and higher healthcare costs. We aim to examine the effect of a computer generated short message service (SMS) reminder in improving medication adherence, and inhibiting the aromatisation process amongst breast cancer women receiving oral aromatase inhibitor therapy...
July 9, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29986670/correlation-between-circulating-tumour-dna-and-metabolic-tumour-burden-in-metastatic-melanoma-patients
#17
Ashleigh C McEvoy, Lydia Warburton, Zeyad Al-Ogaili, Liesl Celliers, Leslie Calapre, Michelle R Pereira, Muhammad A Khattak, Tarek M Meniawy, Michael Millward, Melanie Ziman, Elin S Gray
BACKGROUND: Circulating tumour DNA (ctDNA) may serve as a measure of tumour burden and a useful tool for non-invasive monitoring of cancer. However, ctDNA is not always detectable in patients at time of diagnosis of metastatic disease. Therefore, there is a need to understand the correlation between ctDNA levels and the patients' overall metabolic tumour burden (MTB). METHODS: Thirty-two treatment naïve metastatic melanoma patients were included in the study. MTB and metabolic tumour volume (MTV) was measured by 18F-fluoro-D-glucose positron emission tomography/computed tomography (FDG PET/CT)...
July 9, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29980194/mafb-protein-confers-intrinsic-resistance-to-proteasome-inhibitors-in-multiple-myeloma
#18
Ya-Wei Qiang, Shiqiao Ye, Yuhua Huang, Yu Chen, Frits Van Rhee, Joshua Epstein, Brian A Walker, Gareth J Morgan, Faith E Davies
BACKGROUND: Multiple myeloma (MM) patients with t(14;20) have a poor prognosis and their outcome has not improved following the introduction of bortezomib (Bzb). The mechanism underlying the resistance to proteasome inhibitors (PIs) for this subset of patients is unknown. METHODS: IC50 of Bzb and carfilzomib (CFZ) in human myeloma cell lines (HMCLs) were established by MTT assay. Gene Expression profile (GEP) analysis was used to determine gene expression in primary myeloma cells...
July 6, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29980193/lim-and-sh3-protein-1-regulates-cell-growth-and-chemosensitivity-of-human-glioblastoma-via-the-pi3k-akt-pathway
#19
Chuanhong Zhong, Yitian Chen, Bei Tao, Lilei Peng, Tangming Peng, Xiaobo Yang, Xiangguo Xia, Ligang Chen
BACKGROUND: LIM and SH3 protein 1 (LASP1) is upregulated in several types of human cancer and implicated in cancer progression. However, the expression and intrinsic function of LASP1 in glioblastoma (GBM) remains unclear. METHOD: Oncomine and The Cancer Genome Atlas (TCGA) database was analyzed for the expression and clinical significance of LASP1 in GBM. LASP1 mRNA and protein level were measured by qRT-PCR and western blotting. The effect of LASP1 on GBM proliferation was examined by MTT assay and colony formation assay, the effect of LASP1 on sensitivity of Temozolomide was measured by flow cytometry and subcutaneous tumor model...
July 6, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29980186/thoracic-injection-of-low-dose-interleukin-2-as-an-adjuvant-therapy-improves-the-control-of-the-malignant-pleural-effusions-a-systematic-review-and-meta-analysis-base-on-chinese-patients
#20
Liping Han, Qiufang Jiang, Wei Yao, Tian Fu, Qingdi Zeng
BACKGROUND: Interleukin-2 (IL-2) is an important immunotherapy cytokine for various diseases including cancer. Some studies reported the efficacy and safety on cisplatin combined with IL-2 versus cisplatin alone for treating malignant pleural effusion (MPE) through thoracic injection. METHODS: We searched these studies from medical electronic database. A total of 18 studies that met the inclusion criteria were recruited in this meta-analysis. Pooled odds ratios (OR) with 95% confidence intervals (CI) were determined by the fixed effects model of meta-analysis...
July 6, 2018: BMC Cancer
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