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Cancer Medicine

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https://www.readbyqxmd.com/read/27917618/prognostic-impact-of-mutt-homolog-1-expression-on-esophageal-squamous-cell-carcinoma
#1
Shingo Akiyama, Hiroshi Saeki, Yuichiro Nakashima, Makoto Iimori, Hiroyuki Kitao, Eiji Oki, Yoshinao Oda, Yusaku Nakabeppu, Yoshihiro Kakeji, Yoshihiko Maehara
MutT homolog-1 (MTH1) is a pyrophosphatase that acts on oxidized nucleotides and hydrolyzes 8-oxo-2'-deoxyguanosine triphosphate in deoxynucleoside triphosphate pool to prevent its incorporation into nuclear and mitochondrial DNA, result in reduce cytotoxicity in tumor cells. MTH1 is overexpressed in various cancers and is considered as a therapeutic target. Environmental factors such as cigarette smoking and alcohol consumption are critical risk factors for the development and progression of esophageal squamous cell carcinoma (ESCC), suggesting that oxidative stress contributes to the pathogenesis of ESCC...
December 5, 2016: Cancer Medicine
https://www.readbyqxmd.com/read/27905203/efficacy-and-toxicity-of-the-combination-chemotherapy-of-thalidomide-alkylating-agent-and-steroid-for-relapsed-refractory-myeloma-patients-a-report-from-the-korean-multiple-myeloma-working-party-kmmwp-retrospective-study
#2
Jihyun Kwon, Chang-Ki Min, Kihyun Kim, Jae-Joon Han, Joon Ho Moon, Hye Jin Kang, Hyeon-Seok Eom, Min Kyoung Kim, Hyo Jung Kim, Dok Hyun Yoon, Jeong-Ok Lee, Won Sik Lee, Jae Hoon Lee, Je-Jung Lee, Yoon-Seok Choi, Sung Hyun Kim, Sung-Soo Yoon
We analyzed the treatment responses, toxicities, and survival outcomes of patients with relapsed or refractory multiple myeloma who received daily thalidomide, cyclophosphamide, and dexamethasone (CTD) or daily thalidomide, melphalan, and prednisolone (MTP) at 17 medical centers in Korea. Three-hundred and seventy-six patients were enrolled. The combined chemotherapy of thalidomide, corticosteroid, and an alkylating agent (TAS) was second-line chemotherapy in 142 (37.8%) patients, and third-line chemotherapy in 135 (35...
December 1, 2016: Cancer Medicine
https://www.readbyqxmd.com/read/27905193/high-pretransplant-hepcidin-levels-are-associated-with-poor-overall-survival-and-delayed-platelet-engraftment-after-allogeneic-hematopoietic-stem-cell-transplantation
#3
Soichiro Sakamoto, Hiroshi Kawabata, Junya Kanda, Tatsuki Uchiyama, Chisaki Mizumoto, Toshiyuki Kitano, Tadakazu Kondo, Masakatsu Hishizawa, Naohisa Tomosugi, Akifumi Takaori-Kondo
Iron overload is considered a risk factor for mortality in patients with hematopoietic malignancies. Hepcidin is a key regulator of systemic iron balance. We previously reported dynamic changes of serum hepcidin-25 levels in patients with hematologic malignancies after allogeneic hematopoietic stem cell transplantation (allo-HSCT). In this study, we retrospectively analyzed the association of pretransplant hepcidin-25 levels with overall survival (OS), engraftment, and other clinical outcomes of allo-HSCT in patients with hematologic malignancies...
December 1, 2016: Cancer Medicine
https://www.readbyqxmd.com/read/27891827/gpx3-methylation-in-bone-marrow-predicts-adverse-prognosis-and-leukemia-transformation-in-myelodysplastic-syndrome
#4
Jing-Dong Zhou, Jiang Lin, Ting-Juan Zhang, Ji-Chun Ma, Lei Yang, Xiang-Mei Wen, Hong Guo, Jing Yang, Zhao-Qun Deng, Jun Qian
Epigenetic inactivation of GPX3 has been identified in various cancers including leukemia. Moreover, aberrant DNA methylation was also found as a dominant mechanism of disease progression in myelodysplastic syndrome (MDS). This study intended to explore GPX3 promoter methylation and its clinical relevance in 110 patients with MDS. GPX3 methylation was examined by real-time quantitative methylation-specific PCR (RQ-MSP) and bisulfite sequencing PCR (BSP). GPX3 methylation was identified in 15% (17/110) MDS patients, and significantly higher than controls, and lower than acute myeloid leukemia (AML) patients (P = 0...
November 28, 2016: Cancer Medicine
https://www.readbyqxmd.com/read/27891823/marijuana-use-and-inpatient-outcomes-among-hospitalized-patients-analysis-of-the-nationwide-inpatient-sample-database
#5
Neomi Vin-Raviv, Tomi Akinyemiju, Qingrui Meng, Swati Sakhuja, Reid Hayward
The purpose of this paper is to examine the relationship between marijuana use and health outcomes among hospitalized patients, including those hospitalized with a diagnosis of cancer. A total of 387,608 current marijuana users were identified based on ICD-9 codes for marijuana use among hospitalized patients in the Nationwide Inpatient Sample database between 2007 and 2011. Logistic regression analysis was performed to determine the association between marijuana use and heart failure, cardiac disease, stroke, and in-hospital mortality...
November 28, 2016: Cancer Medicine
https://www.readbyqxmd.com/read/27891822/does-radiotherapy-still-have-a-role-in-unresected-biliary-tract-cancer
#6
Erqi L Pollom, Muthuraman Alagappan, Lesley S Park, Alice S Whittemore, Albert C Koong, Daniel T Chang
The benefits of radiotherapy for inoperable biliary tract cancer remain unclear due to the lack of randomized data. We evaluated the impact of radiotherapy on survival in elderly patients using the SEER-Medicare database. Patients in the SEER-Medicare database with inoperable biliary tract tumors diagnosed between 1998 and 2011 were included. We used multivariate logistic regression to evaluate factors associated with treatment selection, and multivariate Cox regression and propensity score matching to evaluate treatment selection in relation to subsequent survival...
November 28, 2016: Cancer Medicine
https://www.readbyqxmd.com/read/27891816/dll4-overexpression-increases-gastric-cancer-stem-progenitor-cell-self-renewal-ability-and-correlates-with-poor-clinical-outcome-via-notch-1-signaling-pathway-activation
#7
Zhi-Feng Miao, Hao Xu, Hui-Mian Xu, Zhen-Ning Wang, Ting-Ting Zhao, Yong-Xi Song, Ying-Ying Xu
Gastric cancer is one of the most common malignant diseases, and poses a serious threat to the quality of human life. Gastric cancer stem/progenitor cells (GCSPCs) have critical effects on tumor formation, affecting specific features of self-renewal and differentiation and playing a critical role in metastasis. The Notch-1 pathway is crucially important to GCSPCs and is regulated by DLL4. In this study, DLL4 and Nestin levels were measured in 383 gastric cancer tissue samples by immunohistochemistry, and the clinico-pathological features of patients assessed...
November 28, 2016: Cancer Medicine
https://www.readbyqxmd.com/read/27891815/quantitative-t1-mapping-detects-cloudy-enhancing-tumor-compartments-predicting-outcome-of-patients-with-glioblastoma
#8
Andreas Müller, Alina Jurcoane, Sied Kebir, Philip Ditter, Felix Schrader, Ulrich Herrlinger, Theophilos Tzaridis, Burkhard Mädler, Hans H Schild, Martin Glas, Elke Hattingen
Contrast enhancement of glioblastomas (GBM) is caused by the decrease in relaxation time, T1. Here, we demonstrate that the quantitative measurement of T1 (qT1) discovers a subtle enhancement in GBM patients that is invisible in standard MRI. We assessed the volume change of this "cloudy" enhancement during radio-chemotherapy and its impact on patients' progression-free survival (PFS). We enrolled 18 GBM patients in this observational, prospective cohort study and measured 3T-MRI pre- and post contrast agent with standard T1-weighted (T1w) and with sequences to quantify T1 before radiation, and at 6-week intervals during radio-chemotherapy...
November 28, 2016: Cancer Medicine
https://www.readbyqxmd.com/read/27891760/muscle-ras-oncogene-homolog-mras-recurrent-mutation-in-borrmann-type-iv-gastric-cancer
#9
Makiko Yasumoto, Etsuko Sakamoto, Sachiko Ogasawara, Taro Isobe, Junya Kizaki, Akiko Sumi, Hironori Kusano, Jun Akiba, Takuji Torimura, Yoshito Akagi, Hiraku Itadani, Tsutomu Kobayashi, Shinichi Hasako, Masafumi Kumazaki, Shinji Mizuarai, Shinji Oie, Hirohisa Yano
The prognosis of patients with Borrmann type IV gastric cancer (Type IV) is extremely poor. Thus, there is an urgent need to elucidate the molecular mechanisms underlying the oncogenesis of Type IV and to identify new therapeutic targets. Although previous studies using whole-exome and whole-genome sequencing have elucidated genomic alterations in gastric cancer, none has focused on comprehensive genetic analysis of Type IV. To discover cancer-relevant genes in Type IV, we performed whole-exome sequencing and genome-wide copy number analysis on 13 patients with Type IV...
November 28, 2016: Cancer Medicine
https://www.readbyqxmd.com/read/27882726/the-high-expression-instead-of-mutation-of-p53-is-predictive-of-overall-survival-in-patients-with-esophageal-squamous-cell-carcinoma-a-meta-analysis
#10
Ziran Zhao, Pan Wang, Yibo Gao, Jie He
Esophageal squamous-cell carcinoma (ESCC) is one of the deadliest cancers where biomarkers are needed for assist guiding management. We performed a meta-analysis to clarify the prognostic value of p53 high expression and TP53 mutations, which remain controversial for decades in patients with ESCC. We searched PubMed, Ovid MEDLINE, Embase, and Current Contents Connect to identify studies published between January 1990 and February 2016 of esophageal cancer populations that measured p53 expression and/or mutation status and reported hazard ratios (HRs), or adequate data for estimation of HRs for survival for p53-defined subgroups...
November 23, 2016: Cancer Medicine
https://www.readbyqxmd.com/read/27882725/analysis-of-risk-factors-to-predict-communicating-hydrocephalus-following-gamma-knife-radiosurgery-for-intracranial-schwannoma
#11
Seunghoon Lee, Seong-Wook Seo, Juyoung Hwang, Ho Jun Seol, Do-Hyun Nam, Jung-Il Lee, Doo-Sik Kong
Communicating hydrocephalus (HCP) in vestibular schwannomas (VS) after gamma knife radiosurgery (GKRS) has been reported in the literature. However, little information about its incidence and risk factors after GKRS for intracranial schwannomas is yet available. The objective of this study was to identify the incidence and risk factors for developing communicating HCP after GKRS for intracranial schwannomas. We retrospectively reviewed a total of 702 patients with intracranial schwannomas who were treated with GKRS between January 2002 and December 2015...
November 23, 2016: Cancer Medicine
https://www.readbyqxmd.com/read/27882724/efficacy-and-safety-of-darbepoetin-alfa-initiated-at-hemoglobin-%C3%A2-10%C3%A2-g-dl-in-patients-with-stage-iv-cancer-and-chemotherapy-induced-anemia
#12
Ralph V Boccia, David H Henry, Laura Belton, Chet Bohac, Hassan H Ghazal
Data on efficacy and safety of darbepoetin alfa (DA) administered at hemoglobin (Hb) ≤10 g/dL are limited. In this analysis, we examined DA's efficacy and safety in patients with Stage IV cancers and chemotherapy-induced anemia (CIA) initiated on DA at Hb ≤10 g/dL. Data for patients with Stage IV cancers and CIA and who initiated DA at Hb ≤10 g/dL were extracted from three phase 3 trials identified in a central database of Amgen-sponsored DA studies in CIA. Efficacy outcomes were assessed by achievement of Hb increases of ≥1 g/dL and ≥2 g/dL and red blood cell (RBC) or whole blood transfusion requirements...
November 23, 2016: Cancer Medicine
https://www.readbyqxmd.com/read/27882721/survival-of-patients-with-metastatic-leiomyosarcoma-the-md-anderson-clinical-center-for-targeted-therapy-experience
#13
Zhijie Wang, Naiyi Shi, Aung Naing, Filip Janku, Vivek Subbiah, Dejka M Araujo, Shreyaskumar R Patel, Joseph A Ludwig, Lois M Ramondetta, Charles F Levenback, Pedro T Ramirez, Sarina A Piha-Paul, David Hong, Daniel D Karp, Apostolia M Tsimberidou, Funda Meric-Bernstam, Siqing Fu
Advanced stage leiomyosarcoma (LMS) is incurable with current systemic antitumor therapies. Therefore, there is clinical interest in exploring novel therapeutic regimens to treat LMS. We reviewed the medical records of 75 consecutive patients with histologically confirmed metastatic LMS, who had been referred to the Clinical Center for Targeted Therapy at MD Anderson Cancer Center. To lay the foundation for potential phase I trials for the treatment of advanced LMS, we analyzed tumor response and survival outcome data...
November 23, 2016: Cancer Medicine
https://www.readbyqxmd.com/read/27882700/effects-of-lapatinib-or-trastuzumab-alone-and-in-combination-in-human-epidermal-growth-factor-receptor-2-positive-breast-cancer-a-meta-analysis-of-randomized-controlled-trials
#14
Yong Xin, Wen Wen Guo, Qian Huang, Pei Zhang, Long-Zhen Zhang, Guan Jiang, Ye Tian
This meta-analysis compared the efficiency and safety of lapatinib and trastuzumab, alone or in combination, administered with neoadjuvant chemotherapy in patients with human epidermal growth factor receptor 2 (HER2)-positive breast cancer. For dichotomous variables, the relative risk ratio (RR) and 95% confidence interval (CI) were used to investigate outcome measures: pathological complete response (pCR), neutropenia, diarrhea, dermatologic toxicity, and congestive heart failure (CHF). Eight randomized controlled trials of 2350 participants (837 receiving lapatinib, 913 trastuzumab, and 555 combination therapy) were selected to compare the efficiency and safety of lapatinib to trastuzumab...
November 23, 2016: Cancer Medicine
https://www.readbyqxmd.com/read/27882696/fetuin-a-alpha-2hs-glycoprotein-modulates-growth-motility-invasion-and-senescence-in-high-grade-astrocytomas
#15
Gladys N Nangami, Amos M Sakwe, Michael G Izban, Tanu Rana, Philip E Lammers, Portia Thomas, Zhenbang Chen, Josiah Ochieng
Glioblastomas (high-grade astrocytomas) are highly aggressive brain tumors with poor prognosis and limited treatment options. In the present studies, we have defined the role of fetuin-A, a liver-derived multifunctional serum protein, in the growth of an established glioblastoma cell line, LN229. We hereby demonstrate that these cells synthesize ectopic fetuin-A which supports their growth in culture in the absence of serum. We have demonstrated that a panel of tissue microarray (TMA) of glioblastomas also express ectopic fetuin-A...
November 23, 2016: Cancer Medicine
https://www.readbyqxmd.com/read/27882681/general-practice-consultations-diagnostic-investigations-and-prescriptions-in-the-year-preceding-a-lung-cancer-diagnosis
#16
Louise M Guldbrandt, Henrik Møller, Erik Jakobsen, Peter Vedsted
Patterns of general practice utilization in the period before lung cancer (LC) diagnosis may provide new knowledge to ensure timelier and earlier diagnosis of LC. This study aimed to explore the prediagnostic activity in general practice in the year preceding LC diagnosis. The activity was compared to a matched comparison group. We compared LC patients with different stage, and patients with and without chronic obstructive pulmonary disease (COPD). Using Danish registers, we performed a population-based matched cohort study including lung cancer patients (n = 34,017) and matched comparison subjects (n = 340,170)...
November 23, 2016: Cancer Medicine
https://www.readbyqxmd.com/read/27878981/migration-of-breast-cancer-cell-lines-in-response-to-pulmonary-laminin-332
#17
Philip M Carpenter, Priyanka Sivadas, Spencer S Hua, Cally Xiao, Alyssa B Gutierrez, Tuan Ngo, Paul D Gershon
Because tumor cell motility is a requirement for metastasis, we hypothesized that lung tissue harbors substances that induce tumor cell migration. MCF-7 breast carcinoma cells exposed to small airway epithelial cells and conditioned medium exhibited dose-dependent tumor cell migration. Among the extracellular matrix proteins in the conditioned medium identified by mass spectrometry, laminin 332 (LM332) had the greatest contribution to the migration of MCF-7 cells. Immunoblotting and immunohistochemistry for LM332-specific chains identified LM332 in the lung and in pulmonary epithelial cells...
November 22, 2016: Cancer Medicine
https://www.readbyqxmd.com/read/27878971/pregnane-x-receptors-regulate-cyp2c8-and-p-glycoprotein-to-impact-on-the-resistance-of-nsclc-cells-to-taxol
#18
Yan Chen, Wandan Huang, Feiyu Chen, Guoping Hu, Fenglei Li, Jianhua Li, Aiguo Xuan
Cytochrome P450 2C8 (CYP2C8) is one of the enzymes that primarily participate in producing metabolisms of medications and P-glycoprotein (P-gp) has been regarded as one of the important molecules in chemotherapeutically induced multidrug resistance (MDR). In addition, the pregnane X receptor (PXR) is involved in regulating both CYP2C8 and P-gp. We aim to research the effect of PXR on Taxol-resistant non-small-cell lung cancer (NSCLC cells) via regulating CYP2C8 and P-gp. NSCLC cells were treated with SR12813, LY335979, or PXR siRNA...
November 22, 2016: Cancer Medicine
https://www.readbyqxmd.com/read/27860411/secondary-primary-malignancies-during-the-lenalidomide-dexamethasone-regimen-in-relapsed-refractory-multiple-myeloma-patients
#19
Rouslan Kotchetkov, Esther Masih-Khan, Chia-Min Chu, Eshetu G Atenafu, Christine Chen, Vishal Kukreti, Suzanne Trudel, Rodger Tiedemann, Donna E Reece
Lenalidomide in combination with dexamethasone (Len-dex) represents a highly effective treatment in relapsed/refractory multiple myeloma (RRMM) patients. However, an increased risk of secondary primary malignancies (SPMs), including myelodysplastic syndrome (MDS) and acute myelogenous leukemia (AML) has been described in patients receiving lenalidomide. In order to assess the incidence and features of this complication, we reviewed 195 patients with RRMM treated with Len-dex at our institution. The median follow-up time from diagnosis of MM was 73 months (10-234 months) and from initiation of Len-dex was 19 months (1-104 months)...
November 18, 2016: Cancer Medicine
https://www.readbyqxmd.com/read/27860456/independent-prognostic-factors-for-posttransplant-survival-in-hepatocellular-carcinoma-patients-undergoing-liver-transplantation
#20
Minzhi Xing, Hyun S Kim
The aim of this study was to investigate longitudinal trends in locoregional therapy (LRT) use in hepatocellular carcinoma (HCC) patients listed for transplant, and evaluate independent prognostic factors for overall survival (OS) in HCC patients undergoing orthotopic liver transplantation (OLT). The United Network for Organ Sharing (UNOS) database was used to identify HCC patients listed for liver transplantation from 1988 to 2014, and longitudinal rates of bridging LRT were calculated. OLT recipients listed from 2002 to 2013 and transplanted up to 2014, with ≥1 year of follow-up were further analyzed...
November 16, 2016: Cancer Medicine
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