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Cancer Medicine

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https://www.readbyqxmd.com/read/28639751/gefitinib-or-erlotinib-in-previously-treated-non-small-cell-lung-cancer-patients-a-cohort-study-in-taiwan
#1
Chia-Hao Chang, Chih-Hsin Lee, Jen-Chung Ko, Lih-Yu Chang, Ming-Chia Lee, Jann-Yuan Wang, Chong-Jen Yu
Among treatment modalities for lung cancer, the most promising therapy is the use of epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs). Both erlotinib and gefitinib, the two first-generation EGFR-TKIs, exhibit significant clinical responses for patients with lung adenocarcinoma. However, few studies have compared the effects of these two drugs, and results have been inconclusive because of the small sample sizes in these studies. Therefore, this study was conducted to investigate this issue...
June 22, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28639750/protein-lysine-methyltransferase-smyd3-is-involved-in-tumorigenesis-through-regulation-of-her2-homodimerization
#2
Yuichiro Yoshioka, Takehiro Suzuki, Yo Matsuo, Giichiro Tsurita, Toshiaki Watanabe, Naoshi Dohmae, Yusuke Nakamura, Ryuji Hamamoto
HER2 is a receptor tyrosine kinase, which is amplified and overexpressed in a subset of human cancers including breast and gastric cancers, and is indicated in its involvement in progression of cancer. Although its specific ligand(s) has not been detected, HER2 homodimerization, which is critical for its activation, is considered to be dependent on its expression levels. Here, we demonstrate a significant role of HER2 methylation by protein lysine methyltransferase SMYD3 in HER2 homodimerization. We found that SMYD3 trimethylates HER2 protein at lysine 175...
June 22, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28639741/the-impact-of-comorbidity-on-mortality-in-multiple-myeloma-a-danish-nationwide-population-based-study
#3
Henrik Gregersen, Annette Juul Vangsted, Niels Abildgaard, Niels Frost Andersen, Robert Schou Pedersen, Ulf Christian Frølund, Carsten Helleberg, Bettina Broch, Per Trøllund Pedersen, Peter Gimsing, Tobias Wirenfeldt Klausen
To describe the prevalence of comorbidity and its impact on survival in newly diagnosed multiple myeloma patients compared with population controls. Cases of newly diagnosed symptomatic multiple myeloma during the 2005-2012 period were identified in the Danish National Multiple Myeloma Registry. For each myeloma patient, 10 members of the general population matched by age and sex were chosen from the national Civil Registration System. Data on comorbidity in the myeloma patients and the general population comparison cohort were collected by linkage to the Danish National Patient Registry (DNPR)...
June 22, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28639738/impact-of-postoperative-complications-on-the-colorectal-cancer-survival-and-recurrence-analyses-of-pooled-individual-patients-data-from-three-large-phase-iii-randomized-trials
#4
Toru Aoyama, Koji Oba, Michitaka Honda, Sotaro Sadahiro, Chikuma Hamada, Shuhei Mayanagi, Mitsuro Kanda, Hiromichi Maeda, Kosuke Kashiwabara, Junichi Sakamoto, Shigetoyo Saji, Takaki Yoshikawa
This study assessed the impact of postoperative complications on the colorectal cancer survival and recurrence after curative surgery using pooled individual patients' data from three large phase III randomized trials. In total, 5530 patients were included in this study. The patients were classified as those with postoperative complications (C group) and those without postoperative complications (NC group). The risk factors for the overall survival (OS) and the disease-free survival (DFS) were analyzed. Postoperative complications were found in 861 (15...
June 22, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28639735/neonates-with-cancer-and-causes-of-death-lessons-from-615-cases-in-the-seer-databases
#5
Ahmad S Alfaar, Waleed M Hassan, Mohamed Sabry Bakry, Ibrahim Qaddoumi
Neonatal tumors are rare with no standard treatment approaches to these diseases, and the patients experience poor outcomes. Our aim was to determine the distribution of cancers affecting neonates and compare survival between these cancers and older children. We analyzed SEER data (1973-2007) from patients who were younger than 2 years at diagnosis of malignancy. Special permission was granted to access the detailed (i.e., age in months) data of those patients. The Chi-square Log-rank test was used to compare survival between neonates (aged <1 month) and older children (>1 month to <2 years)...
June 22, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28639733/genetic-variants-of-cell-cycle-pathway-genes-predict-disease-free-survival-of-hepatocellular-carcinoma
#6
Shun Liu, Tian-Bo Yang, Yue-Li Nan, An-Hua Li, Dong-Xiang Pan, Yang Xu, Shu Li, Ting Li, Xiao-Yun Zeng, Xiao-Qiang Qiu
Disruption of the cell cycle pathway has previously been related to development of human cancers. However, associations between genetic variants of cell cycle pathway genes and prognosis of hepatocellular carcinoma (HCC) remain largely unknown. In this study, we evaluated the associations between 24 potential functional single nucleotide polymorphisms (SNPs) of 16 main cell cycle pathway genes and disease-free survival (DFS) of 271 HCC patients who had undergone radical surgery resection. We identified two SNPs, i...
June 22, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28639410/long-term-survival-benefit-of-upfront-chemotherapy-in-patients-with-newly-diagnosed-borderline-resectable-pancreatic-cancer
#7
Bikram Shrestha, Yifei Sun, Farzana Faisal, Victoria Kim, Kevin Soares, Alex Blair, Joseph M Herman, Amol Narang, Avani S Dholakia, Lauren Rosati, Amy Hacker-Prietz, Linda Chen, Daniel A Laheru, Ana De Jesus-Acosta, Dung T Le, Ross Donehower, Nilofar Azad, Luis A Diaz, Adrian Murphy, Valerie Lee, Elliot K Fishman, Ralph H Hruban, Tingbo Liang, John L Cameron, Martin Makary, Matthew J Weiss, Nita Ahuja, Jin He, Christopher L Wolfgang, Chiung-Yu Huang, Lei Zheng
The use of neoadjuvant chemotherapy or radiation for borderline resectable pancreatic adenocarcinoma (BL-PDAC) is increasing. However, the impact of neoadjuvant chemotherapy and radiation therapy on the outcome of BL-PDAC remains to be elucidated. We performed a retrospective analysis of 93 consecutive patients who were diagnosed with BL-PDAC and primarily followed at Johns Hopkins Hospital between February 2007 and December 2012. Among 93 patients, 62% received upfront neoadjuvant chemotherapy followed by chemoradiation, whereas 20% received neoadjuvant chemoradiation alone and 15% neoadjuvant chemotherapy alone...
June 21, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28639409/anti-pd-1-antibodies-in-metastatic-uveal-melanoma-a-treatment-option
#8
Carolin Bender, Alexander Enk, Ralf Gutzmer, Jessica C Hassel
Uveal melanomas (UMs) are a rare form of cancer with clinical and pathological characteristics distinct from cutaneous melanomas. Ipilimumab has shown efficacy and safety in the treatment of metastatic UM. This provides a rationale for treatment with other immune checkpoint inhibitors. This is a retrospective review of 15 patients with metastatic UM treated between June 2014 and February 2016, who received treatment with the anti-PD-1 Abs pembrolizumab or nivolumab. Patients were treated at two German university hospitals...
June 21, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28627138/predictors-of-brca1-2-genetic-testing-among-black-women-with-breast-cancer-a-population-based-study
#9
Tarsha Jones, Anne Marie McCarthy, Younji Kim, Katrina Armstrong
Evidence shows that Black women diagnosed with breast cancer are substantially less likely to undergo BRCA testing and other multipanel genetic testing compared to White women, despite having a higher incidence of early-age onset breast cancer and triple-negative breast cancer (TNBC). Our study identifies predictors of BRCA testing among Black women treated for breast cancer and examines differences between BRCA testers and nontesters. We conducted an analysis of 945 Black women ages 18-64 diagnosed with localized or regional-stage invasive breast cancer in Pennsylvania and Florida between 2007 and 2009...
June 19, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28627030/mir-375-slc7a11-axis-regulates-oral-squamous-cell-carcinoma-proliferation-and-invasion
#10
Yadong Wu, Xiangjie Sun, Bin Song, Xiaoling Qiu, Jianjiang Zhao
We aimed to detect the functions of miR-375/SLC7A11 axis on oral squamous cell carcinoma (OSCC) cell proliferation and invasion. Expression levels of miR-375 and SLC7A11 in OSCC tissues and cells were measured with RT-qPCR and western blot. Targeting site was predicted by TargetScan and confirmed by dual luciferase reporting assay. By way of manipulating the expression level of miR-375 and SLC7A11 in CAL-27 and Tca8113 cell lines, the cell biological abilities were evaluated. MTT, colony formation, Transwell, wound healing assays and flow cytometry were used to detect OSCC cell viability, proliferation, invasion, migration and apoptosis, respectively...
June 19, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28612485/renal-impairment-and-use-of-nephrotoxic-agents-in-patients-with-multiple-myeloma-in-the-clinical-practice-setting-in-the-united-states
#11
Yi Qian, Debajyoti Bhowmik, Christopher Bond, Steven Wang, Sam Colman, Rohini K Hernandez, Paul Cheng, Michele Intorcia
Renal impairment is a common complication of multiple myeloma and deterioration in renal function or renal failure may complicate clinical management. This retrospective study in patients with multiple myeloma using an electronic medical records database was designed to estimate the prevalence of renal impairment (single occurrence of estimated glomerular filtration rate [eGFR] <60 mL/min per 1.73 m(2) on or after multiple myeloma diagnosis) and chronic kidney disease (at least two eGFR values <60 mL/min per 1...
June 14, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28612435/racial-disparities-in-survival-outcomes-by-breast-tumor-subtype-among-african-american-women-in-memphis-tennessee
#12
Gregory Vidal, Zoran Bursac, Gustavo Miranda-Carboni, Shelley White-Means, Athena Starlard-Davenport
Racial disparities in survival among African American (AA) women in the United States have been well documented. Breast cancer mortality rates among AA women is higher in Memphis, Tennessee as compared to 49 of the largest US cities. In this study, we investigated the extent to which racial/ethnic disparities in survival outcomes among Memphis women are attributed to differences in breast tumor subtype and treatment outcomes. A total of 3527 patients diagnosed with stage I-IV breast cancer between January 2002 and April 2015 at Methodist Health hospitals and West Cancer Center in Memphis, TN were included in the analysis...
June 14, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28608446/dual-addressing-of-thymidine-synthesis-pathways-for-effective-targeting-of-proliferating-melanoma
#13
Tara Miran, Andreas T J Vogg, Laila El Moussaoui, Hans-Jürgen Kaiser, Natascha Drude, Verena von Felbert, Felix M Mottaghy, Agnieszka Morgenroth
Here, we examined the potential of blocking the thymidine de novo synthesis pathways for sensitizing melanoma cells to the nucleoside salvage pathway targeting endogenous DNA irradiation. Expression of key nucleotide synthesis and proliferation enzymes thymidylate synthase (TS) and thymidine kinase 1 (TK1) was evaluated in differentiated (MITF(high) [microphthalmia-associated transcription factor] IGR1) and invasive (MITF(medium) IGR37) melanoma cells. For inhibition of de novo pathways cells were incubated either with an irreversible TS inhibitor 5-fluoro-2'-deoxyuridine (FdUrd) or with a competitive dihydrofolate-reductase (DHFR) inhibitor methotrexate (MTX)...
June 13, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28602029/the-prognostic-impact-of-programmed-cell-death-ligand-1-and-human-leukocyte-antigen-class-i-in-pancreatic-cancer
#14
Daisuke Imai, Tomoharu Yoshizumi, Shinji Okano, Hideaki Uchiyama, Toru Ikegami, Norifumi Harimoto, Shinji Itoh, Yuji Soejima, Shinichi Aishima, Yoshinao Oda, Yoshihiko Maehara
Pancreatic ductal adenocarcinoma (PDA) is associated with an immunosuppressive tumor-microenvironment (TME) that supports the growth of tumors and mediates tumors enabling evasion of the immune system. Expression of programmed cell death ligand 1 (PD-L1) and loss of human leukocyte antigen (HLA) class I on tumor cells are methods by which tumors escape immunosurveillance. We examined immune cell infiltration, the expression of PD-L1 and HLA class I by PDA cells, and the correlation between these immunological factors and clinical prognosis...
June 10, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28580709/early-ovariectomy-reveals-the-germline-encoding-of-natural-anti-a-and-tn-cross-reactive-immunoglobulin-m-igm-arising-from-developmental-o-galnac-glycosylations-germline-encoded-natural-anti-a-tn-cross-reactive-igm
#15
Peter Arend
While native blood group A-like glycans have not been demonstrated in prokaryotic microorganisms as a source of human "natural" anti-A isoagglutinin production, and metazoan eukaryotic N-acetylgalactosamine O-glycosylation of serine or threonine residues (O-GalNAc-Ser/Thr-R) does not occur in bacteria, the O-GalNAc glycan-bearing ovarian glycolipids, discovered in C57BL/10 mice, are complementary to the syngeneic anti-A-reactive immunoglobulin M (IgM), which is not present in animals that have undergone ovariectomy prior to the onset of puberty...
June 5, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28580596/cervical-cancer-screening-in-a-low-resource-setting-a-pilot-study-on-an-hpv-based-screen-and-treat-approach
#16
Margot Kunckler, Fanny Schumacher, Bruno Kenfack, Rosa Catarino, Manuela Viviano, Eveline Tincho, Pierre-Marie Tebeu, Liliane Temogne, Pierre Vassilakos, Patrick Petignat
Cervical cancer (CC) is the leading cause of cancer-related death among women in sub-Saharan Africa, primarily because of limited access to effective screening and preventive treatment. Our aim was to assess the feasibility of a human papillomavirus (HPV)-based CC screen-and-treat approach in a low-resource context. We recruited 1012 women aged 30-49 years through a CC screening campaign conducted in the District Hospital of Dschang, Cameroon. Participants performed HPV self-sampling, which was tested for high-risk HPV (HR-HPV) DNA using the point-of-care Xpert HPV assay...
June 4, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28573788/in-vitro-additive-antitumor-effects-of-dimethoxycurcumin-and-5-fluorouracil-in-colon-cancer-cells
#17
Huiying Zhao, Qingchun Liu, Saisai Wang, Fang Dai, Xiaofei Cheng, Xiaobin Cheng, Wenbin Chen, Min Zhang, Dong Chen
Dimethoxycurcumin (DMC) is a lipophilic analog of curcumin, an effective treatment for colon cancer, which has greater chemical and metabolic stability. Chemotherapy treatments, such as 5-fluorouracil (5-Fu), play a key role in the current management of colon cancer. In this study, we investigated the antitumor efficacy of DMC in combination with 5-Fu in SW480 and SW620 colon cancer cells. CCK-8 assay was used to evaluate the inhibitory effect of DMC and 5-Fu on cancer cells proliferation, and the combination index was calculated...
June 2, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28573829/comparative-proteomic-profiling-of-the-serum-differentiates-pancreatic-cancer-from-chronic-pancreatitis
#18
Mayank Saraswat, Sakari Joenväärä, Hanna Seppänen, Harri Mustonen, Caj Haglund, Risto Renkonen
Finland ranks sixth among the countries having highest incidence rate of pancreatic cancer with mortality roughly equaling incidence. The average age of diagnosis for pancreatic cancer is 69 years in Nordic males, whereas the average age of diagnosis of chronic pancreatitis is 40-50 years, however, many cases overlap in age. By radiology, the evaluation of a pancreatic mass, that is, the differential diagnosis between chronic pancreatitis and pancreatic cancer is often difficult. Preoperative needle biopsies are difficult to obtain and are demanding to interpret...
June 1, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28573821/overexpression-of-the-human-antigen-r-suppresses-the-immediate-paradoxical-proliferation-of-melanoma-cell-subpopulations-in-response-to-suboptimal-braf-inhibition
#19
Marylise Fernandez, Hedwig Sutterlüty-Fall, Christoph Schwärzler, Sylvain Lemeille, Wolf-Henning Boehncke, Rastine Merat
Tumor plasticity and the heterogeneous response of melanoma cells to targeted therapies are major limits for the long-term efficacy of this line of therapy. Targeting tumor plasticity is theoretically possible through the modulation of the expression of RNA-binding proteins which can affect many different compensatory mechanisms of the adaptive response of malignant cells to targeted therapies. Human antigen R (HuR) is a modulator of gene expression and a transacting factor in the mRNA-processing machinery used in the cell stress response, and is a potential target for reducing tumor plasticity...
June 1, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28568708/prognostic-value-of-notch-receptors-in-postsurgical-patients-with-hepatitis-b-virus-related-hepatocellular-carcinoma
#20
Tingdong Yu, Chuangye Han, Guangzhi Zhu, Xiwen Liao, Wei Qin, Chengkun Yang, Zhen Liu, Hao Su, Xiaoguang Liu, Long Yu, Zhengtao Liu, Sicong Lu, Zhiwei Chen, Yu Liang, Jianlu Huang, Xue Qin, Ying Gui, Jiaquan Li, Tao Peng
Hepatocellular carcinoma (HCC) is one of the most prevalent malignancies and a major cause of cancer involved death worldwide. Prognosis remains poor because of high recurrence rates and lack of effective relapse prevention strategies. Notch pathway plays an important role in tumor progression and metastasis, and it is associated with the prognosis of cancer. A total of 465 hepatitis B virus (HBV)-related HCC patients who underwent surgery were enrolled. Single nucleotide polymorphisms (SNP) of Notch pathway receptors were genotyped using Sanger DNA sequencing...
May 31, 2017: Cancer Medicine
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