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https://www.readbyqxmd.com/read/28343375/foxo1-suppression-is-a-determinant-of-acquired-lapatinib-resistance-in-her2-positive-gastric-cancer-cells-through-met-upregulation
#1
Jinju Park, Yiseul Choi, Young San Ko, Younghoon Kim, Jung-Soo Pyo, Bo Gun Jang, Min A Kim, Jae-Seon Lee, Mee Soo Chang, Jong-Wan Park, Byung Lan Lee
Purpose: Lapatinib is a candidate drug for treatment of trastuzumab-resistant, HER2-positive gastric cancer (GC). Unfortunately, lapatinib resistance renders this drug ineffective. The present study investigated the implication of forkhead box protein O1 (FOXO1) signaling in the acquired lapatinib resistance in HER2-positive GC cells. Materials and Methods: Lapatinib-resistant GC cell lines (SNU-216 LR2-8) were generated in vitro by chronic exposure of lapatinib-sensitive, HER2-positive SNU-216 cells to lapatinib...
March 24, 2017: Cancer Research and Treatment: Official Journal of Korean Cancer Association
https://www.readbyqxmd.com/read/28343352/the-role-of-hypofractionated-radiotherapy-in-prostate-cancer
#2
REVIEW
Linus C Benjamin, Alison C Tree, David P Dearnaley
PURPOSE OF REVIEW: It is now accepted that prostate cancer has a low alpha/beta ratio, establishing a strong basis for hypofractionation of prostate radiotherapy. This review focuses on the rationale for hypofractionation and presents the evidence base for establishing moderate hypofractionation for localised disease as the new standard of care. The emerging evidence for extreme hypofractionation in managing localized and oligometastatic prostate cancer is reviewed. RECENT FINDINGS: The 5-year efficacy and toxicity outcomes from four phase III studies have been published within the last 12 months...
April 2017: Current Oncology Reports
https://www.readbyqxmd.com/read/28343345/assessment-of-nucleosides-as-putative-tumor-biomarkers-in-prostate-cancer-screening-by-ce-uv
#3
Adriana Zardini Buzatto, Mariana de Oliveira Silva, Ronei Jesus Poppi, Ana Valéria Colnaghi Simionato
Cancer is responsible for millions of deaths worldwide, but most base diseases may be cured if detected early. Screening tests may be used to identify early-stage malignant neoplasms. However, the major screening tool for prostate cancer, the prostate-specific antigen test, has unsuitable sensitivity. Since cancer cells may affect the pattern of consumption and excretion of nucleosides, such biomolecules are putative biomarkers that can be used for diagnosis and treatment evaluation. Using a previously validated method for the analysis of nucleosides in blood serum by capillary electrophoresis with UV-vis spectroscopy detection, we investigated 60 samples from healthy individuals and 42 samples from prostate cancer patients...
March 25, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28343337/trismus-following-different-treatment-modalities-for-head-and-neck-cancer-a-systematic-review-of-subjective-measures
#4
REVIEW
Sook Y Loh, Robert W J Mcleod, Hassan A Elhassan
The aim of this review was to compare systematically the subjective measure of trismus between different interventions to treat head and neck cancer, particularly those of the oropharynx. Using The Preferred Reporting Items for Systematic Review and Meta-Analyses (PRISMA) Guidelines, Six databases were searched for the text using various terms which include "oropharyngeal/head and neck cancer", "trismus/mouth opening" and the various treatment modalities. Included in the review were clinical studies (> or =10 patients)...
March 25, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28343330/human-papilloma-virus-hpv-infection-leads-to-the-development-of-head-and-neck-lesions-but-offers-better-prognosis-in-malignant-indian-patients
#5
Shreya Sarkar, Neyaz Alam, Jayanta Chakraborty, Jaydip Biswas, Syam Sundar Mandal, Susanta Roychoudhury, Chinmay Kumar Panda
Head and neck cancers constitute a multifactorial global disease burden and are associated with human papilloma virus (HPV) as a possible risk factor. The aim of the study is to understand the relationship between HPV and the development of head and neck lesions in Indian patients. To this end, frequency of HPV was assessed in relation to different demographic and etiological features and correlated with patient survival. The prevalence of HPV significantly increased from mild dysplastic lesions (43.6%) to head and neck squamous cell carcinoma (HNSCC) stage IV (68...
March 25, 2017: Medical Microbiology and Immunology
https://www.readbyqxmd.com/read/28343326/segmental-ureterectomy-is-not-inferior-to-radical-nephroureterectomy-for-either-middle-or-distal-ureter-urothelial-cell-carcinomas-within-3-5%C3%A2-cm
#6
Chen Fang, Xin Xie, Tianyuan Xu, Wei He, Hongchao He, Xiaojing Wang, Yu Zhu, Zhoujun Shen, Yuan Shao
OBJECTIVE: To evaluate oncologic outcomes of segmental ureterectomy (SU) compared with radical nephroureterectomy (RNU) for urothelial carcinoma of ureter. To evaluate whether tumor position is a factor to influence outcomes of different surgical procedures. METHODS: From November 2003 to June 2016, 131 patients with urothelial carcinoma of ureter underwent SU or RNU at our department. We used survival analysis and Cox regression models to compare oncologic outcomes after SU and RNU...
March 25, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28343309/breast-cancer-detection-and-tumor-characteristics-in-brca1-and-brca2-mutation-carriers
#7
Julia Krammer, Katja Pinker-Domenig, Mark E Robson, Mithat Gönen, Blanca Bernard-Davila, Elizabeth A Morris, Debra A Mangino, Maxine S Jochelson
PURPOSE: To describe imaging findings, detection rates, and tumor characteristics of breast cancers in a large series of patients with BRCA1 and BRCA2 mutations to potentially streamline screening strategies. METHODS: An IRB-approved, HIPAA-compliant retrospective analysis of 496 BRCA mutation carriers diagnosed with breast carcinoma from 1999 to 2013 was performed. Institutional database and electronic medical records were reviewed for mammography and MRI imaging...
March 25, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28343305/clinicopathologic-and-genetic-features-of-primary-bronchopulmonary-mucoepidermoid-carcinoma-the-md-anderson-cancer-center-experience-and-comprehensive-review-of-the-literature
#8
Alireza Salem, Diana Bell, Boris Sepesi, Vassiliki Papadimitrakopoulou, Adel El-Naggar, Cesar A Moran, Neda Kalhor
Primary bronchopulmonary mucoepidermoid carcinoma (BPMEC) is a rare tumor. The fusion protein MECT1-MAML2 has been implicated as a causative genetic event in salivary and BPMECs. Several studies have shown the impact of MECT1-MAML2 on the diagnosis and prognosis of salivary gland mucoepidermoid carcinoma; however, few studies have been published regarding MECT1-MAML2 in the context of primary BPMEC. We describe the clinicopathologic, genetic, and outcome data of 16 patients with BPMEC. Clinicopathologic features were recorded from the electronic medical records...
March 25, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28343299/the-role-of-line-1-methylation-in-predicting-survival-among-colorectal-cancer-patients-a-meta-analysis
#9
Ding Ye, Danjie Jiang, Yingjun Li, Mingjuan Jin, Kun Chen
BACKGROUND: The prognostic value of long interspersed nucleotide element-1 (LINE-1) methylation in patients with colorectal cancer (CRC) remains uncertain. We have therefore performed a meta-analysis to elucidate this issue. METHODS: The PubMed and Web of Science databases were searched for studies published up to 30 June 2016 which reported on an association between LINE-1 methylation and overall survival (OS), disease-free survival (DFS), or cancer-specific survival (CSS) among CRC patients...
March 25, 2017: International Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28343282/effective-chemotherapy-of-heterogeneous-and-drug-resistant-early-colon-cancers-by-intermittent-dose-schedules-a-computer-simulation-study
#10
David E Axelrod, Sudeepti Vedula, James Obaniyi
PURPOSE: The effectiveness of cancer chemotherapy is limited by intra-tumor heterogeneity, the emergence of spontaneous and induced drug-resistant mutant subclones, and the maximum dose to which normal tissues can be exposed without adverse side effects. The goal of this project was to determine if intermittent schedules of the maximum dose that allows colon crypt maintenance could overcome these limitations, specifically by eliminating mixtures of drug-resistant mutants from heterogeneous early colon adenomas while maintaining colon crypt function...
March 25, 2017: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/28343267/tumor-associated-macrophages-and-regulatory-t-cells-infiltration-and-the-clinical-outcome-in-colorectal-cancer
#11
Dariusz Waniczek, Zbigniew Lorenc, Mirosław Śnietura, Mariusz Wesecki, Agnieszka Kopec, Małgorzata Muc-Wierzgoń
The aim of the study is the assessment of the intensity of the infiltration of tumor-associated macrophages (TAMs) CD68(+)/iNOS(-) and Tregs CD8(+)/FoxP3(+) in colorectal cancer (CRC) patients as prognostic factors with respect to disease-free survival (DFS) and overall survival (OS). In this retrospective study, tissue samples were obtained from 89 patients undergoing resection for CRC (stage IIA, pT3N0M0 and stages IIIB and IIIC, pT3N1-2M0). Recurrence was observed in 45 patients at the time of the follow-up (10 local recurrences, 35 distant metastases)...
March 25, 2017: Archivum Immunologiae et Therapiae Experimentalis
https://www.readbyqxmd.com/read/28343235/transcription-dependent-radial-distribution-of-tcf7l2-regulated-genes-in-chromosome-territories
#12
Keyvan Torabi, Darawalee Wangsa, Immaculada Ponsa, Markus Brown, Anna Bosch, Maria Vila-Casadesús, Tatiana S Karpova, Maria Calvo, Antoni Castells, Rosa Miró, Thomas Ried, Jordi Camps
Human chromosomes occupy distinct territories in the interphase nucleus. Such chromosome territories (CTs) are positioned according to gene density. Gene-rich CTs are generally located in the center of the nucleus, while gene-poor CTs are positioned more towards the nuclear periphery. However, the association between gene expression levels and the radial positioning of genes within the CT is still under debate. In the present study, we performed three-dimensional fluorescence in situ hybridization experiments in the colorectal cancer cell lines DLD-1 and LoVo using whole chromosome painting probes for chromosomes 8 and 11 and BAC clones targeting four genes with different expression levels assessed by gene expression arrays and RT-PCR...
March 25, 2017: Chromosoma
https://www.readbyqxmd.com/read/28343227/what-is-the-key-to-improving-renal-transplant-recipients-awareness-of-skin-cancer-risk
#13
Alessandro Borghi, Monica Corazza, Yuri Battaglia, Elisa Maietti, Sara Minghetti, Annarosa Virgili
BACKGROUND: Previous studies have shown poor compliance rates regarding sun protection among organ transplant recipients. OBJECTIVE: The main objective of the present study was to assess the awareness among renal transplant recipients (RTRs) of their risk of non-melanoma skin cancer (NMSC) development and their sunscreen use. The influence of several potentially relevant variables was also assessed in order to identify possible weak points on which to concentrate efforts in this respect...
March 25, 2017: Dermatology: International Journal for Clinical and Investigative Dermatology
https://www.readbyqxmd.com/read/28343211/-rare-case-of-slowly-progressing-lung-cancer-with-colon-metastases
#14
Katarzyna Krawczak, Bożenna Karczmarek-Borowska, Maciąg Maciąg, Wiesław Guz
Lung cancer is one of the most frequent cancers in the world and the fist cause of death of neoplastic origin. In half of patients at the time of diagnosis distant metastases are determined. Most frequent localizations are bones, liver, brain and adrenal glands. In described case there was documented slow, long-term development of lung adenocarcinoma. After initial diagnosis the patient remained without treatment for three years. Aside from slow progression of the disease the fact of asymptomatic metastases to the colon as a very rare localization should draw attention...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28343201/-ibrutinib-new-tool-in-hematologist-hand-new-challenges-for-internist
#15
Maciej Majcherek, Marzena Dworacka, Grzegorz Dworacki
Chronic lymphocytic leukemia is the most common cancer of the lymphatic tissue in adults. The peak incidence falls on the 65-70 year old. Therefore, the majority of patients with chronic lymphocytic leukemia (CLL) has at least one coexisting disease. Successful oncological and supportive treatment, that is common in recent years, significantly prolongs the survival. This paper presents ibrutinib - a new drug used to treat CLL. The aim of this paper is, to show an example of this drug, meaning and benefits of modern methods of pharmacotherapy in the treatment of oncology...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28343200/sentinel-lymph-node-sln-in-breast-cancer-review-of-current-identification-methods
#16
Andrzej Lorek, Agnieszka Boratyn-Nowicka, Ewa Szlachta-Światkowska
The subject of the paper is the review of the current methods for identifying the sentinel lymph node in breast cancer treatment, taking into account the latest techniques and based on the up-to-date analyses of many years of experience in using this method.
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28343199/-hypogonadism-in-patients-with-testicular-tumors-and-prostate-cancer
#17
Marcin Radko, Tomasz Syryło, Henryk Zieliński
Hypogonadism is defined as an array of symptoms arising from a deficiency of androgens. It is caused by a hormonal and spermatogenic dysfunction of the testes. It results in impaired fertility and has a negative impact on the functions of multiple organs and systems, physical well-being, sexual functions and also mental state. Particularly patients with a history of cancer have a high risk of developing hypogonadism as a result of not only the nature of the disease, but mainly its treatment. While leaving the patient with cancer without treatment does not fall within the concept of the art of medicine and the ethical canon of a physician, the symptoms of hypogonadism are often ignored and left untreated...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28343198/-why-ovarian-cancer-cells-escape-from-immune-surveillance
#18
Iwona Wertel, Karolina Okła, Justyna Surówka, Monika Bilska, Grzegorz Polak, Wiesława Bednarek, Jan Kotarski
Ovarian cancer is a malignancy of high mortality rates. In respect of the number of deaths caused by cancers it occupies the fourth place among women in Poland. Recent studies are focusing on the role of immune system in ovarian cancer pathogenesis. It has been reported that immune response against ovarian cancer cells may be inhibited by a number of immunosuppressive mechanisms active in cancer microenvironment. It causes difficulties in recognizing and destroying cancer cells by immune system which leads to the development of immune tolerance and is associated with a low efficacy of standard therapeutic strategies...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28343197/-skin-cancers-in-kidney-transplant-recipients
#19
Anna Bieryło, Szymon Brzósko, Elżbieta Laudańska, Beata Naumnik
Kidney transplantation is the best treatment for end-stage renal failure. It prolongs the patient's life, improves quality of life and reduces costs associated with renal replacement therapy. Increasingly, newer immunosuppressive regimens allow for the proper functioning of the transplanted organ for many years. The progress in transplantation, qualification patients in older age for the procedure and longer survival of kidney graft lead to an increase in the number of patients receiving immunosuppressive drugs...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28343174/mirna-analysis-in-pancreatic-cancer-the-dartmouth-experience
#20
Francine B de Abreu, Xiaoying Liu, Gregory J Tsongalis
Pancreatic cancer is considered one of the most lethal cancers being the fourth leading cause of cancer deaths in adults in the United States because of the lack of early signs and symptoms and the lack of early detection. Pancreatic ductal adenocarcinoma (PDAC) is the most common histological type among pancreatic cancers, representing 80%-90% of all solid tumors of the pancreas. The majority of PDAC develops from three precursor lesions: pancreatic intraepithelial neoplasia, intraductual papillary mucinous neoplasm and mucinous cystic neoplasm...
March 27, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
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