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https://www.readbyqxmd.com/read/29138417/association-of-predicted-pathogenic-mutations-in-mitochondrial-nd-genes-with-distant-metastasis-in-nsclc-and-colon-cancer
#1
Nobuko Koshikawa, Miho Akimoto, Jun-Ichi Hayashi, Hiroki Nagase, Keizo Takenaga
Cancer cells have more mutations in their mitochondrial DNA (mtDNA) than do normal cells, and pathogenic mutations in the genes encoding mitochondrial NADH dehydrogenase (ND) subunits have been found to enhance the invasive and metastatic ability of various tumour cells in animal experiments. However, it is unknown whether single-nucleotide variants (SNVs) of the ND genes that decrease complex I activity are involved in distant metastasis in human clinical samples. Here, we demonstrated the enhancement of the distant metastasis of Lewis lung carcinoma cells by the ND6 13885insC mutation, which is accompanied by the overexpression of metastasis-related genes, metabolic reprogramming, the enhancement of tumour angiogenesis and the acquisition of resistance to stress-induced cell death...
November 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29137354/erps294-is-a-biomarker-of-ligand-or-mutational-er%C3%AE-activation-and-a-breast-cancer-target-for-cdk2-inhibition
#2
Gary K Scott, David Chu, Ravneet Kaur, Julia Malato, Daniel E Rothschild, Katya Frazier, Serenella Eppenberger-Castori, Byron Hann, Ben Ho Park, Christopher C Benz
ERα phosphorylation at hinge site S294 (pS294) was recently shown to be essential for ER-dependent gene transcription and mediated by an unknown cyclin-dependent kinase (CDK). This study was undertaken to identify the exact CDK pathway mediating pS294 formation, and to determine if this phosphorylation event occurs with, and can be targeted to treat, the ligand-independent growth of breast cancers expressing endocrine-refractory ESR1 mutations. Using a newly developed anti-pS294 monoclonal antibody, a combination of CDK specific siRNA knockdown studies and a broad panel of CDK selective inhibitors against ligand (E2)-stimulated MCF7 cells, we first identified CDK2 as the primary mediator of pS294 formation and showed that CDK2-selective inhibitors like Dinaciclib, but not CDK4/6 inhibitors like Palbociclib, can selectively prevent pS294 formation and repress ER-dependent gene expression...
October 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/29137342/incidence-and-relative-risk-of-cutaneous-squamous-cell-carcinoma-with-single-agent-braf-inhibitor-and-dual-braf-mek-inhibitors-in-cancer-patients-a-meta-analysis
#3
Ling Peng, Yina Wang, Yun Hong, Xianghua Ye, Peng Shi, Junyan Zhang, Qiong Zhao
Background: BRAF inhibitor and dual BRAF/MEK inhibitors have been approved for the treatment of BRAF-mutated melanoma. Cutaneous squamous cell carcinoma (cuSCC) is an adverse event associated with these drugs. The contribution of BRAF inhibitor and dual BRAF/MEK inhibitors to cuSCC are still unknown. We performed this meta-analysis to determine the overall incidence and relative risk of cuSCC in cancer patients treated with these drugs. Results: A total of 7,442 patients from 24 primary studies were included...
October 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29132061/synchronous-peritoneal-metastases-of-small-bowel-adenocarcinoma-insights-into-an-underexposed-clinical-phenomenon
#4
Laura M Legué, Geert A Simkens, Geert-Jan M Creemers, Valery E P P Lemmens, Ignace H J T de Hingh
BACKGROUND: The aim of this population-based study was to provide insight into the incidence, risk factors and treatment-related survival of patients with peritoneal metastases (PM) of small bowel adenocarcinoma (SBA). METHODS: Data from the Netherlands Cancer Registry were used. All patients diagnosed with SBA between 2005 and 2014 were included. The influence of patient and tumour characteristics on the odds of developing PM was analysed. Subsequently, for all further analyses, patients without synchronous PM of SBA were excluded...
November 10, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/29129076/comprehensive-molecular-characterization-of-a-cisplatin-specific-monoclonal-antibody
#5
Lena Ruhe, Stefanie Ickert, Ulrike Hochkirch, Johanna Hofmann, Sebastian Beck, Jürgen Thomale, Michael W Linscheid
Despite their immense and rapidly increasing importance as analytical tools or therapeutic drugs, the detailed structural features of particular monoclonal antibodies are widely unknown. Here, an antibody already in use for diagnostic purposes and for molecular dosimetry studies in cancer therapy with very high affinity and specificity for cisplatin-induced DNA modifications was studied extensively. The molecular structure and modifications as well as the antigen specificity were investigated mainly by mass spectrometry...
November 11, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/29128409/breast-cancer-related-perceptions-and-practices-of-health-professionals-working-in-brazil-s-network-of-primary-care-units
#6
Benjamin D Hallowell, Douglas M Puricelli Perin, Eduardo J Simoes, Diana C Paez, Diana C Parra, Ross C Brownson, Mona Saraiya
In 2004 the Brazilian National Cancer Institute (INCA) established breast cancer screening guidelines for women in Brazil: annual clinical breast exam for women age 40-49 and biennial mammogram for women age 50-69. Healthcare provider's adherence to these guidelines is currently unknown. The objective of this study is to describe the perceptions and practices related to breast cancer screening among physicians, nurses, and health unit coordinators working in the network of primary healthcare units (HCUs) in Brazil...
November 8, 2017: Preventive Medicine
https://www.readbyqxmd.com/read/29128262/intraoperative-imaging-during-minimally-invasive-transoral-robotic-surgery-using-near-infrared-light
#7
Nicholas Scott-Wittenborn, Ryan S Jackson
PURPOSE: The purpose of this study was to determine if the use of the FIREFLY imaging system could be an asset in transoral robotic surgery (TORS) for oropharyngeal squamous cell carcinoma (OPSCC). The system uses indocyanine green dye (ICG), which fluoresces when illuminated by near-infrared light from the Da Vinci robot. The system may improve visualization of tumor margins, highlight important vascular structures, and help identify the location of tumors and unknown primary head and neck cancers...
September 6, 2017: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/29126244/impact-of-neoadjuvant-chemoradiotherapy-on-health-related-quality-of-life-in-long-term-survivors-of-esophageal-or-junctional-cancer-results-from-the-randomized-cross-trial
#8
B J Noordman, M G E Verdam, S M Lagarde, J Shapiro, M C C M Hulshof, M I van Berge Henegouwen, B P L Wijnhoven, G A P Nieuwenhuijzen, J J Bonenkamp, M A Cuesta, J Th M Plukker, E J Spillenaar Bilgen, E W Steyerberg, A van der Gaast, M A G Sprangers, J J B van Lanschot
Background: Neoadjuvant chemoradiotherapy (nCRT) plus surgery is a standard of care for patients with esophageal or junctional cancer, but the long-term impact of nCRT on health-related quality of life (HRQOL) is unknown. The purpose of this study is to compare very long-term HRQOL in long-term survivors of esophageal cancer who received nCRT plus surgery or surgery alone. Patients and methods: Patients were randomly assigned to receive nCRT (carboplatin/paclitaxel with 41...
November 6, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/29126017/epidermal-growth-factor-receptor-overexpression-and-outcomes-in-early-breast-cancer-a-systematic-review-and-a-meta-analysis
#9
REVIEW
Galileo A Gonzalez-Conchas, Laura Rodriguez-Romo, David Hernandez-Barajas, Juan F Gonzalez-Guerrero, Ivan A Rodriguez-Fernandez, Adrian Verdines-Perez, Arnoud J Templeton, Alberto Ocana, Bostjan Seruga, Ian F Tannock, Eitan Amir, Francisco E Vera-Badillo
BACKGROUND: The epidermal growth factor receptor (EGFR) is a member of the ErbB family of membrane tyrosine-kinase receptors. Studies exploring the prognostic role of EGFR-overexpression in early breast cancer have shown variable results, and the true prognostic value of EGFR is unknown. METHODS: A systematic review of identified publications exploring the association between EGFR-overexpression (as defined from different techniques and cut-offs) and outcomes [disease-free (DFS) and, overall survival (OS)] in women with early breast cancer...
October 31, 2017: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/29121143/mismatch-repair-deficiency-testing-in-patients-with-colorectal-cancer-and-nonadherence-to-testing-guidelines-in-young-adults
#10
Talha Shaikh, Elizabeth A Handorf, Joshua E Meyer, Michael J Hall, Nestor F Esnaola
Importance: Mismatch repair (MMR) deficiency of DNA has been observed in up to 15% of sporadic colorectal cancers (CRCs) and is a characteristic feature of Lynch syndrome, which has a higher incidence in young adults (age, <50 years) with CRC. Mismatch repair deficiency can be due to germline mutations or epigenetic inactivation, affects prognosis and response to systemic therapy, and results in unrepaired repetitive DNA sequences, which increases the risk of multiple malignant tumors...
November 9, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/29119423/meningioma-and-breast-cancer-survival-of-patients-with-synchronous-and-metachronous-meningioma-and-breast-cancer
#11
José Pedro Lavrador, Marta Valente Pinto, Luís Mascarenhas Lemos, Catarina Ribeiro, André Peralta Santos
The prognosis of the association between Breast Cancer (BC) and Meningioma (M) is unknown. To evaluate the survival impact of tumor exposure sequence in patients with both tumors. Patients were divided in groups according to the tumors sequence: BC before M (group 1), synchronous BC + M (group 2) and BC after M (group 3). The SEER database was used. Demographics, meningioma and breast cancer variables were analyzed. The primary outcome was oncological survival. A total of 1715 patients were included (median follow-up:84 months)...
November 8, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29118718/the-practice-of-physical-activity-in-the-setting-of-lower-extremities-sarcomas-a-first-step-toward-clinical-optimization
#12
Mohamad Assi, Mickael Ropars, Amélie Rébillard
Lower-extremities sarcoma patients, with bone tumor and soft-tissue sarcoma, are a unique population at high risk of physical dysfunction and chronic heart diseases. Thus, providing an adequate physical activity (PA) program constitutes a primary part of the adjuvant treatment, aiming to improve patients' quality of life. The main goal of this paper is to offer clear suggestions for clinicians regarding PA around the time between diagnosis and offered treatments. These preliminary recommendations reflect our interpretation of the clinical and preclinical data published on this topic, after a systematic search on the PubMed database...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29110645/long-intergenic-non-protein-coding-rna-1567-linc01567-acts-as-a-sponge-against-microrna-93-in-regulating-the-proliferation-and-tumorigenesis-of-human-colon-cancer-stem-cells
#13
Xiaofeng Yu, Lin Mi, Jie Dong, Jian Zou
BACKGROUND: Cancer stem cells (CSCs) are considered to be the major factor in tumor initiation, progression, metastasis, recurrence and chemoresistance. Maintaining the stemness and promoting differentiation of these cells involve various factors. Recently, long non-coding RNAs (lncRNAs) have been identified as new regulatory factors in human cancer cells. However, the function of lncRNAs in colon CSCs is still unknown. METHODS: Primary colon cancer cells were maintained in serum-free medium to form spheres and CD133(+)/CD166(+)/CD44(+) spheroid cells were selected using FACS technique...
November 6, 2017: BMC Cancer
https://www.readbyqxmd.com/read/29110298/long-term-genoprotection-effect-of-sechium-edule-fruit-extract-against-uva-irradiation-in-keratinocytes
#14
Elodie Metral, Walid Rachidi, Odile Damour, Frédéric Demarne, Nicolas Bechetoille
Photoprotection is essential to prevent the long-term deleterious effects of ultraviolet (UV), including skin cancer and photoaging. So far, there has been an increase in the use of natural bioactive phytochemicals for the development of more effective skin photoprotective agents. However, the molecular mechanisms underlying the photochemoprotection activity of such compounds remain largely unknown. The objective of this study was to investigate the effects of a Sechium edule fruit extract (SEE) in terms of photoprotection against UVA in primary human keratinocytes...
November 7, 2017: Photochemistry and Photobiology
https://www.readbyqxmd.com/read/29108334/phase-i-dose-escalation-study-of-the-c-met-tyrosine-kinase-inhibitor-sar125844-in-asian-patients-with-advanced-solid-tumors-including-patients-with-met-amplified-gastric-cancer
#15
Kohei Shitara, Tae Min Kim, Tomoya Yokota, Masahiro Goto, Taroh Satoh, Jin-Hee Ahn, Hyo Song Kim, Sylvie Assadourian, Corinne Gomez, Marzia Harnois, Satoshi Hamauchi, Toshihiro Kudo, Toshihido Doi, Yung-Jue Bang
SAR125844 is a potent and selective inhibitor of the c-Met kinase receptor. This was an open-label, phase I, multicenter, dose-escalation, and dose-expansion trial of SAR125844 in Asian patients with solid tumors, a subgroup of whom had gastric cancer and MET amplification (NCT01657214). SAR125844 was administered by intravenous infusion (260-570 mg/m(2)) on days 1, 8, 15, and 22 of each 28-day cycle. Objectives were to determine the maximum tolerated dose (MTD) and to evaluate SAR125844 safety and pharmacokinetic profile...
October 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/29108282/igf-iec-expression-is-increased-in-secondary-compared-to-primary-foci-in-neuroendocrine-neoplasms
#16
Krystallenia I Alexandraki, Anastassios Philippou, Georgios Boutzios, Irini Theohari, Michael Koutsilieris, Ioanna Kassiani Delladetsima, Gregory A Kaltsas
Different Insulin-like growth factor-I (IGF-I) mRNA transcripts are produced by alternative splicing and particularly the IGF-IEc isoform has been implicated in the development and/or progression of various types of cancer. In the present study, we examined the potential role of IGF-IEc expression as a new immunohistochemical marker of aggressiveness in neuroendocrine neoplasms (NENs). We utilized immunohistochemical analysis in tissue specimens of 47 patients with NENs, to evaluate the expression of IGF-IEc (%) and Ki-67 proliferation index (%)...
October 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/29105289/predictors-of-care-for-patients-with-cancer-of-unknown-primary-site-in-three-australian-hospitals
#17
Simon Y S Tan, Siobhan O'Neill, David Goldstein, Robyn L Ward, Benjamin Daniels, Claire M Vajdic
AIM: Cancer of unknown primary site (CUP) is a medically challenging malignancy with a poor prognosis. We describe an incident tertiary CUP patient cohort and identify factors predictive of specific types of health care. METHODS: We reviewed the medical records of 217 patients diagnosed with CUP (2006-2011) in three public hospitals in New South Wales, Australia. We systematically abstracted data and performed multivariable logistic regression to identify factors predictive of tumor biopsy, surgery, chemotherapy, radiotherapy and palliative care...
November 3, 2017: Asia-Pacific Journal of Clinical Oncology
https://www.readbyqxmd.com/read/29103737/synchronous-bilateral-tonsillar-carcinomas-patient-characteristics-and-human-papillomavirus-genotypes
#18
Camelia Nami Saber, Christian Grønhøj, David Hebbelstrup Jensen, Cecilie Nørregaard, Amanda Carlander, Emilie Garnæs, Katalin Kiss, Lena Specht, Christian von Buchwald
INTRODUCTION: The incidence of oropharyngeal squamous cell carcinoma (OPSCC) is increasing, but data on the incidence of synchronous, bilateral tonsillar squamous cell carcinomas (BiTSCCs) is sparse. In this study, we report the incidence and tumour characteristics of BiTSCCs in a population-based, consecutive cohort of OPSCCs. METHODS: We identified all patients diagnosed with tonsillar squamous cell carcinoma (TSCC) in eastern Denmark during a 15-year period to detect the incidence of synchronous BiTSCCs...
November 2017: Oral Oncology
https://www.readbyqxmd.com/read/29102489/cause-specific-mortality-in-adults-with-atopic-dermatitis
#19
Jacob P Thyssen, Lone Skov, Alexander Egeberg
BACKGROUND: Adult atopic dermatitis (AD) has been associated with several co-morbidities, but cause-specific mortality risk is unknown. OBJECTIVES: To examine cause-specific death rates and risk in adults with AD. METHODS: We performed cross-linkage of nationwide health care and cause of death registers. Adult patients with AD were matched with 10 controls per study subject. We calculated incidence rates per 1,000 person-years and hazard ratios (HRs) of cause-specific death with 95% confidence intervals (95% CIs) using Cox proportional hazards models...
November 1, 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/29100390/flna-is-implicated-in-pulmonary-neuroendocrine-tumors-aggressiveness-and-progression
#20
Eleonora Vitali, Ilena Boemi, Lorenzo Rosso, Valeria Cambiaghi, Pierluigi Novellis, Giovanna Mantovani, Anna Spada, Marco Alloisio, Giulia Veronesi, Stefano Ferrero, Andrea G Lania
Pulmonary neuroendocrine tumors (PNTs) comprise different neoplasms, ranging from low grade carcinoids to the highly malignant small cell lung cancers. Several studies identified the cytoskeleton protein Filamin A (FLNA) as determinant in cancer progression and metastasis, but the role of FLNA in PNT aggressiveness and progression is still unknown. We evaluated FLNA expression in PNTs with different grade of differentiation, the role of FLNA in cell proliferation, colony formation, angiogenesis, cell adhesion and migration in PNT cell line (H727 cells) and primary cultures and the possible interaction between FLNA and Rap1-GTPase...
September 29, 2017: Oncotarget
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