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https://www.readbyqxmd.com/read/28644156/clinical-case-of-the-month-a-57-year-old-man-with-an-axillary-mass
#1
Palak Desai, Andrew Myers, Brian Boulmay, Fred A Lopez
A 57-year-old man presented to the surgical oncology clinic with a mildly tender mass under his right arm. Four years prior, the patient had a melanoma removed from his right shoulder along with an ipsilateral right axillary sentinel lymph sampling. Computed tomography (CT) scan was negative for metastatic disease at that time. The patient did not undergo completion axillary node dissection and was lost to follow-up. The patient was originally from Australia, did not tan but reported multiple sunburns before age 18...
May 2017: Journal of the Louisiana State Medical Society: Official Organ of the Louisiana State Medical Society
https://www.readbyqxmd.com/read/28629213/la-sopravvivenza-dei-pazienti-oncologici-in-italia
#2
Vincenzo Coviello, Carlotta Buzzoni, Mario Fusco, Alessandro Barchielli, Francesco Cuccaro, Roberta De Angelis, Adriano Giacomin, Stefano Luminari, Giorgia Randi, Lucia Mangone
OBJECTIVES: Population-based survival statistics are fundamental to assess the efficacy of services offered to improve cancer patients' prognosis. This study aims to update cancer survival estimates for the Italian population, as well as provide new measures, such as the crude probability of death, which takes into account the possibility of dying from causes other than cancer, and the change in life expectancy after a cancer diagnosis, to properly address various questions. RESULTS: The study includes 1,932,450 cancer cases detected by the Network of Italian Cancer Registries (AIRTUM) from 1994 to 2011 and provides estimates for 38 cancer sites and for allsites cancer...
March 2017: Epidemiologia e Prevenzione
https://www.readbyqxmd.com/read/28618843/risk-of-cardiac-death-among-cancer-survivors-in-the-united-states-a-seer-database-analysis
#3
Omar Abdel-Rahman
 Background: Population-based data on the risk of cardiac death among cancer survivors are needed. This scenario was evaluated in cancer survivors (>5 years) registered within the Surveillance, Epidemiology and End Results (SEER) database. METHODS: The SEER database was queried using SEER*Stat to determine the frequency of cardiac death compared to other causes of death; and to determine heart disease-specific and cancer-specific survival rates in survivors of each of the 10 most common cancers in men and women in the SEER database...
June 21, 2017: Expert Review of Anticancer Therapy
https://www.readbyqxmd.com/read/28617598/withanolides-from-aeroponically-grown-physalis-peruviana-and-their-selective-cytotoxicity-to-prostate-cancer-and-renal-carcinoma-cells
#4
Ya-Ming Xu, E M Kithsiri Wijeratne, Ashley L Babyak, Hanna R Marks, Alan D Brooks, Poonam Tewary, Li-Jiang Xuan, Wen-Qiong Wang, Thomas J Sayers, A A Leslie Gunatilaka
Investigation of aeroponically grown Physalis peruviana resulted in the isolation of 11 new withanolides, including perulactones I-L (1-4), 17-deoxy-23β-hydroxywithanolide E (5), 23β-hydroxywithanolide E (6), 4-deoxyphyperunolide A (7), 7β-hydroxywithanolide F (8), 7β-hydroxy-17-epi-withanolide K (9), 24,25-dihydro-23β,28-dihydroxywithanolide G (10), and 24,25-dihydrowithanolide E (11), together with 14 known withanolides (12-25). The structures of 1-11 were elucidated by the analysis of their spectroscopic data, and 12-25 were identified by comparison of their spectroscopic data with those reported...
June 15, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/28606732/constitutive-and-acquired-mechanisms-of-resistance-to-immune-checkpoint-blockade-in-human-cancer
#5
Matteo Bellone, Angela Rita Elia
Cancer immunotherapy with monoclonal antibodies directed against regulatory pathways in T lymphocytes has been revolutionizing medical oncology, and the clinical success of monoclonal antibodies targeting either cytotoxic T lymphocyte antigen-4 (CTLA-4) or program death-1 (PD-1) in patients affected by melanoma, Hodgkin's lymphoma, Merkel cell carcinoma, and head and neck, bladder, renal cell or non-small cell lung cancer is way beyond the most optimistic expectation. However, immune checkpoint blockade (ICB) has failed to arrest progression in a consistent amount of patients affected by those tumors, and various histological types, including breast, colon and prostate cancer, are less sensitive to this therapeutic approach...
June 2, 2017: Cytokine & Growth Factor Reviews
https://www.readbyqxmd.com/read/28593908/circulating-cell-free-micrornas-as-clinical-cancer-biomarkers
#6
REVIEW
Virginie Armand-Labit, Anne Pradines
MicroRNAs (miRNAs) are non-coding small RNAs that are master regulators of genic expression and consequently of many cellular processes. But their expression is often deregulated in human tumors leading to cancer development. Recently miRNAs were discovered in body fluids (serum, plasma and others) and their levels have often been reported to be altered in patients. Circulating miRNAs became one of the most promising biomarkers in oncology for early diagnosis, prognosis and therapeutic response prediction. Here we describe the origins and roles of miRNAs, and summarize the most recent studies focusing on their usefulness as cancer biomarkers in lung, breast, colon, prostate, ovary cancers and melanoma...
April 27, 2017: Biomolecular Concepts
https://www.readbyqxmd.com/read/28590274/survival-from-cancer-in-the-north-region-of-portugal-results-from-the-first-decade-of-the-millennium
#7
Luís Antunes, Lúcio L Santos, Maria José Bento
The aim of this study was to evaluate net survival from cancer diagnosed during the period 2001/2010 in the north region of Portugal to identify the tumours that need actions to improve the outcomes. Data were retrieved from the North Region Cancer Registry of Portugal database. The top 20 cancer sites in adults were considered: oesophagus, stomach, colon, rectum, pancreas, liver, larynx, lung, skin melanoma, breast, cervix, corpus uteri, ovary, prostate, kidney, bladder, brain and central nervous system, thyroid, non-Hodgkin lymphoma and multiple myeloma...
June 5, 2017: European Journal of Cancer Prevention
https://www.readbyqxmd.com/read/28581441/nk-cell-heparanase-controls-tumor-invasion-and-immune-surveillance
#8
Eva M Putz, Alyce J Mayfosh, Kevin Kos, Deborah S Barkauskas, Kyohei Nakamura, Liam Town, Katharine J Goodall, Dean Y Yee, Ivan Kh Poon, Nikola Baschuk, Fernando Souza-Fonseca-Guimaraes, Mark D Hulett, Mark J Smyth
NK cells are highly efficient at preventing cancer metastasis but are infrequently found in the core of primary tumors. Here, have we demonstrated that freshly isolated mouse and human NK cells express low levels of the endo-β-D-glucuronidase heparanase that increase upon NK cell activation. Heparanase deficiency did not affect development, differentiation, or tissue localization of NK cells under steady-state conditions. However, mice lacking heparanase specifically in NK cells (Hpsefl/fl NKp46-iCre mice) were highly tumor prone when challenged with the carcinogen methylcholanthrene (MCA)...
June 5, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28578276/decoding-nadph-oxidase-4-expression-in-human-tumors
#9
Jennifer L Meitzler, Hala R Makhlouf, Smitha Antony, Yongzhong Wu, Donna Butcher, Guojian Jiang, Agnes Juhasz, Jiamo Lu, Iris Dahan, Pidder Jansen-Dürr, Haymo Pircher, Ajay M Shah, Krishnendu Roy, James H Doroshow
NADPH oxidase 4 (NOX4) is a redox active, membrane-associated protein that contributes to genomic instability, redox signaling, and radiation sensitivity in human cancers based on its capacity to generate H2O2 constitutively. Most studies of NOX4 in malignancy have focused on the evaluation of a small number of tumor cell lines and not on human tumor specimens themselves; furthermore, these studies have often employed immunological tools that have not been well characterized. To determine the prevalence of NOX4 expression across a broad range of solid tumors, we developed a novel monoclonal antibody that recognizes a specific extracellular region of the human NOX4 protein, and that does not cross-react with any of the other six members of the NOX gene family...
May 26, 2017: Redox Biology
https://www.readbyqxmd.com/read/28574815/prpf-overexpression-induces-drug-resistance-through-actin-cytoskeleton-rearrangement-and-epithelial-mesenchymal-transition
#10
Salman Ul Islam, Adeeb Shehzad, Jong Kyung Sonn, Young Sup Lee
Pre-mRNA processing factor (PRPF) 4B kinase belongs to the CDK-like kinase family, and is involved in pre-mRNA splicing, and in signal transduction. In this study, we observed that PRPF overexpression decreased the intracellular levels of reactive oxygen species, and inhibited resveratrol-induced apoptosis by activating the cell survival signaling proteins NFκB, ERK, and c-MYC in HCT116 human colon cancer cells. PRPF overexpression altered cellular morphology, and rearranged the actin cytoskeleton, by regulating the activity of Rho family proteins...
May 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28543886/human-hairless-protein-roles-in-skin-hair-and-emerging-connections-to-brain-and-other-cancers
#11
Anas Maatough, G Kerr Whitfield, Lemlem Brook, David Hsieh, Patricia Palade, Jui-Cheng Hsieh
The mammalian hairless protein (HR) is a 130 kDa nuclear transcription factor that is essential for proper skin and hair follicle function. Previous studies have focused on the role of HR in skin maintenance and hair cycling. However, hairless gene (HR) is also expressed in brain and other tissues, where its role remains poorly understood. HR has been reported to contain functional domains that potentially serve in DNA binding, histone demethylation, nuclear translocation signal, and protein-protein interactions...
May 23, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28542476/functional-interaction-between-co-expressed-mage-a-proteins
#12
Julieta E Laiseca, María F Ladelfa, Javier Cotignola, Leticia Y Peche, Franco A Pascucci, Bryan A Castaño, Mario D Galigniana, Claudio Schneider, Martin Monte
MAGE-A (Melanoma Antigen Genes-A) are tumor-associated proteins with expression in a broad spectrum of human tumors and normal germ cells. MAGE-A gene expression and function are being increasingly investigated to better understand the mechanisms by which MAGE proteins collaborate in tumorigenesis and whether their detection could be useful for disease prognosis purposes. Alterations in epigenetic mechanisms involved in MAGE gene silencing cause their frequent co-expression in tumor cells. Here, we have analyzed the effect of MAGE-A gene co-expression and our results suggest that MageA6 can potentiate the androgen receptor (AR) co-activation function of MageA11...
2017: PloS One
https://www.readbyqxmd.com/read/28537896/5t4-oncofoetal-glycoprotein-an-old-target-for-a-novel-prostate-cancer-immunotherapy
#13
Federica Cappuccini, Emily Pollock, Stephen Stribbling, Adrian V S Hill, Irina Redchenko
The tumour-associated antigen 5T4 is an attractive target for cancer immunotherapy. However to date, reported 5T4-specific cellular immune responses induced by various immunisation platforms have been largely weak or non-existent. In the present study, we have evaluated a heterologous prime boost regime based on the simian adenovirus ChAdOx1 and modified vaccinia virus Ankara (MVA) expressing 5T4 for immunogenicity and tumour protective efficacy in a mouse cancer model. Vaccination-induced immune responses were strong, durable and attributable primarily to CD8+ T cells...
May 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28525996/cancer-risks-in-a-population-based-study-of-70-570-agricultural-workers-results-from-the-canadian-census-health-and-environment-cohort-canchec
#14
Linda Kachuri, M Anne Harris, Jill S MacLeod, Michael Tjepkema, Paul A Peters, Paul A Demers
BACKGROUND: Agricultural workers may be exposed to potential carcinogens including pesticides, sensitizing agents and solar radiation. Previous studies indicate increased risks of hematopoietic cancers and decreased risks at other sites, possibly due to differences in lifestyle or risk behaviours. We present findings from CanCHEC (Canadian Census Health and Environment Cohort), the largest national population-based cohort of agricultural workers. METHODS: Statistics Canada created the cohort using deterministic and probabilistic linkage of the 1991 Canadian Long Form Census to National Cancer Registry records for 1992-2010...
May 19, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28512032/cytotoxic-triterpene-diglycosides-from-the-sea-cucumber-stichopus-horrens
#15
Nguyen Xuan Cuong, Le Thi Vien, Le Hoang, Tran Thi Hong Hanh, Do Thi Thao, Nguyen Van Thanh, Nguyen Hoai Nam, Do Cong Thung, Phan Van Kiem, Chau Van Minh
Using various chromatographic separation techniques, eight triterpene diglycosides (1-8), including four new compounds namely stichorrenosides A-D (1-4), were isolated from a methanol extract of the Vietnamese sea cucumber S. horrens. Their structures were elucidated based on spectroscopic analyses, including HR ESI MS, 1D and 2D NMR. Their in vitro cytotoxic activity against five human cancer cell lines, Hep-G2 (hepatoma cancer), KB (epidermoid carcinoma), LNCaP (prostate cancer), MCF7 (breast cancer), and SK-Mel2 (melanoma), was evaluated using SRB methods...
May 6, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28492039/skin-cancer-concerns-particular-to-women
#16
REVIEW
Z Al-Dujaili, M Henry, A S Dorizas, N S Sadick
BACKGROUND: Skin cancer has reached epidemic proportions, with more new cases diagnosed annually than the combined incidence of cancers of the breast, prostate, lung, and colon. Estimates show 2 to 3 million new cases of non-melanoma skin cancer (NMSC) every year, and, among women, it is the young (younger than 45 years) who are disproportionately affected. OBJECTIVE: This article aims to address questions and concerns pertinent to skin cancer in a woman-centric way...
March 2017: International Journal of Women's Dermatology
https://www.readbyqxmd.com/read/28488582/pras40-signaling-in-tumor
#17
REVIEW
Dan Lv, Lianying Guo, Ting Zhang, Lin Huang
The proline-rich Akt substrate of 40 kDa (PRAS40) is a substrate of Akt and a component of the mammalian target of rapamycin complex 1 (mTORC1). Locating at the crossroad of the PI3K/Akt pathway and the mTOR pathway, PRAS40 is phosphorylated by growth factors or other stimuli, and regulates the activation of these signaling pathways in turn. PRAS40 plays an important role in metabolic disorders and multiple cancers, and the phosphorylation of PRAS40 is often associated with the tumor progression of melanoma, prostate cancer, etc...
April 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/28487463/male-breast-cancer-as-a-second-primary-cancer-increased-risk-following-lymphoma
#18
Deborah E Farr, Alexandra Thomas, Seema Ahsan Khan, Mary C Schroeder
BACKGROUND: Male breast cancer (MBC) as a second primary cancer (SPC) has a known association with prior MBC. However, its association with non-breast index malignancies, relative to population risk, has not been previously reported. MATERIALS AND METHODS: Using Surveillance, Epidemiology, and End Results program (9 catchment area) data, we identified MBCs diagnosed from 1973-2012 as their SPC. Information regarding the index malignancy was also obtained. Standardized incidence ratios (SIR) of MBC as SPC were estimated, along with incidence rates and trends...
May 9, 2017: Oncologist
https://www.readbyqxmd.com/read/28483457/in-vitro-and-in-vivo-pharmacology-of-nxt629-a-novel-and-selective-ppar%C3%AE-antagonist
#19
Karin J Stebbins, Alex R Broadhead, Geraldine Cabrera, Lucia D Correa, Davorka Messmer, Richard Bundey, Christopher Baccei, Yalda Bravo, Austin Chen, Nicholas S Stock, Peppi Prasit, Daniel S Lorrain
Peroxisome-proliferator activated receptors (PPAR) are members of the nuclear hormone receptor superfamily which regulate gene transcription. PPARα is a key regulator of lipid homeostasis and a negative regulator of inflammation. Under conditions of metabolic stress such as fasting or glucose deprivation, PPARα is upregulated in order to control gene expression necessary for processing alternate fuel sources (e.g. fatty acid oxidation) and thereby promote maintenance of cell viability. Clinically, PPARα expression is upregulated in diseased tissues such as melanoma, chronic lymphocytic leukemia, ovarian and prostate cancer...
May 5, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28480500/cancer-survivors-reported-discussions-with-health-care-providers-about-follow-up-care-and-receipt-of-written-care-plans
#20
Sarah C Reed, Rod Walker, Rebecca Ziebell, Borsika Rabin, Stephanie Nutt, Jessica Chubak, Larissa Nekhlyudov
Prior studies reveal gaps in cancer survivors' discussions with health care providers about follow-up care and receipt of care plans; however, whether survivorship care planning may vary by cancer type is not known. We surveyed 615 survivors of breast, colorectal, prostate, lung cancer, and melanoma enrolled in three health plans to examine cancer survivors' self-reported discussions of follow-up care, including the need for surveillance, late and long-term effects, emotional needs, and health behaviors. We assessed whether cancer survivors received a written treatment summary and post-treatment care instructions...
May 8, 2017: Journal of Cancer Education: the Official Journal of the American Association for Cancer Education
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