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https://www.readbyqxmd.com/read/29243179/melanoma-risk-assessment-based-on-relatives-age-at-diagnosis
#1
Yelena P Wu, Wendy Kohlmann, Karen Curtin, Zhe Yu, Heidi A Hanson, Mia Hashibe, Bridget G Parsons, Jathine Wong, Joshua D Schiffman, Douglas Grossman, Sancy A Leachman
PURPOSE: The aim of this study was to determine risk for melanoma among individuals who have a first- or second-degree relative with a history of melanoma, based on the unaffected individual's age and age at diagnosis of the relative. METHODS: The study employed a case-control design using a statewide database linked with a Surveillance Epidemiology and End Results cancer registry. A population-based sample of individuals who received at least one diagnosis of first primary, malignant melanoma (n = 14,281), as well as their first- and second-degree relatives, was included...
December 14, 2017: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/29235562/targeting-the-raf-kinases-in-human-cancer-the-raf-dimer-dilemma
#2
David E Durrant, Deborah K Morrison
The Raf protein kinases are key intermediates in cellular signal transduction, functioning as direct effectors of the Ras GTPases and as the initiating kinases in the ERK cascade. In human cancer, Raf activity is frequently dysregulated due to mutations in the Raf family member B-Raf or to alterations in upstream Raf regulators, including Ras and receptor tyrosine kinases. First-generation Raf inhibitors, such as vemurafenib and dabrafenib, have yielded dramatic responses in malignant melanomas containing B-Raf mutations; however, their overall usefulness has been limited by both intrinsic and acquired drug resistance...
December 12, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/29234713/promoting-early-detection-of-melanoma-during-the-mammography-experience
#3
A K Rzepecki, N Jain, Y Ali, L Chavez, J Choi, B Schlosser, E Liko-Hazizi, S M Friedewald, J K Robinson
Background: Invasive melanoma, a lethal form of skin cancer, is the seventh most common cancer in women. Factors such as a history of indoor tanning or sunburn and a personal or family history of skin cancer increase a woman's risk of developing a melanoma. Objective: Because the majority of melanomas occur in patients age 40 years or older, which is the age that is recommended for women to begin screening mammograms, the mammogram experience could be used to promote early detection of melanoma by introducing skin self-examinations (SSE) to a population of women who are already invested in preventive health...
December 2017: International Journal of Women's Dermatology
https://www.readbyqxmd.com/read/29231248/slurp-1-is-mutated-in-mal-de-meleda-a-potential-molecular-signature-for-melanoma-and-a-putative-squamous-lineage-tumor-suppressor-gene
#4
Christina Bergqvist, Humam Kadara, Lamiaa Hamie, Georges Nemer, Remi Safi, Mirna Karouni, Nadine Marrouche, Ossama Abbas, Divina J Hasbani, Abdul G Kibbi, Dany Nassar, Yutaka Shimomura, Mazen Kurban
BACKGROUND: Mal de Meleda (MDM) is a rare inherited autosomal recessive genodermatosis characterized by palmoplantar keratoderma (PPK) with transgrediens and caused by mutations in the SLURP1 gene. Uncommonly, cutaneous tumors have been found at PPK sites in MDM patients. OBJECTIVE: To study a Middle Eastern family with MDM with both PPK and skin tumors. METHODS: We studied a Middle Eastern (Palestinian) family with clinical features of MDM and cutaneous tumors...
December 12, 2017: International Journal of Dermatology
https://www.readbyqxmd.com/read/29229995/lysyl-oxidase-like-3-is-required-for-melanoma-cell-survival-by-maintaining-genomic-stability
#5
Patricia G Santamaría, Alfredo Floristán, Bárbara Fontanals-Cirera, Alberto Vázquez-Naharro, Vanesa Santos, Saleta Morales, Lourdes Yuste, Héctor Peinado, Antonio García-Gómez, Francisco Portillo, Eva Hernando, Amparo Cano
Lysyl oxidase-like 3 (LOXL3) is a member of the lysyl oxidase family comprising multifunctional enzymes with depicted roles in extracellular matrix maturation, tumorigenesis, and metastasis. In silico expression analyses followed by experimental validation in a comprehensive cohort of human cell lines revealed a significant upregulation of LOXL3 in human melanoma. We show that LOXL3 silencing impairs cell proliferation and triggers apoptosis in various melanoma cell lines. Further supporting a pro-oncogenic role in melanoma, LOXL3 favors tumor growth in vivo and cooperates with oncogenic BRAF in melanocyte transformation...
December 11, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/29221137/ev20-sap-a-novel-anti-her-3-antibody-drug-conjugate-displays-promising-antitumor-activity-in-melanoma
#6
Emily Capone, Francesco Giansanti, Sara Ponziani, Alessia Lamolinara, Manuela Iezzi, Annamaria Cimini, Francesco Angelucci, Rossana La Sorda, Vincenzo De Laurenzi, Pier Giorgio Natali, Rodolfo Ippoliti, Stefano Iacobelli, Gianluca Sala
Melanoma is the most biologically aggressive skin cancer of well established constitutive and induced resistance to pharmacological treatment. Despite the recent progresses in immunotherapies, many advanced metastatic melanoma patients still face a significant mortality risk. The aggressive nature of this disease sustains an urgent need for more successful, effective drugs. HER-3 - one of the four member of the tyrosin kinase epidermal growth factor receptors (EGFRs) family- is frequently overexpressed in solid tumors, including melanoma...
November 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29215650/phenocopies-in-melanoma-prone-families-with-germ-line-cdkn2a-mutations
#7
Hildur Helgadottir, Håkan Olsson, Margaret A Tucker, Xiaohong R Yang, Veronica Höiom, Alisa M Goldstein
PurposeCarriers of CDKN2A mutations have high risks of melanoma and certain other cancers. In this study we examined the occurrence of tumors among CDKN2A wild type (wt) members of melanoma-prone families with CDKN2A mutations.MethodsSwedish and US melanoma-prone families with CDKN2A mutations were included. Data was collected on tumors diagnosed among family members. Among the CDKN2A mutated families, members with CDKN2A wt status who were diagnosed with melanoma were designated phenocopies.ResultsOf patients with melanoma in the CDKN2A mutated families (n = 266), 7...
December 7, 2017: Genetics in Medicine: Official Journal of the American College of Medical Genetics
https://www.readbyqxmd.com/read/29212027/melanoma-therapeutic-strategies-that-select-against-resistance-by-exploiting-myc-driven-evolutionary-convergence
#8
Katherine R Singleton, Lorin Crawford, Elizabeth Tsui, Haley E Manchester, Ophelia Maertens, Xiaojing Liu, Maria V Liberti, Anniefer N Magpusao, Elizabeth M Stein, Jennifer P Tingley, Dennie T Frederick, Genevieve M Boland, Keith T Flaherty, Shannon J McCall, Clemens Krepler, Katrin Sproesser, Meenhard Herlyn, Drew J Adams, Jason W Locasale, Karen Cichowski, Sayan Mukherjee, Kris C Wood
Diverse pathways drive resistance to BRAF/MEK inhibitors in BRAF-mutant melanoma, suggesting that durable control of resistance will be a challenge. By combining statistical modeling of genomic data from matched pre-treatment and post-relapse patient tumors with functional interrogation of >20 in vitro and in vivo resistance models, we discovered that major pathways of resistance converge to activate the transcription factor, c-MYC (MYC). MYC expression and pathway gene signatures were suppressed following drug treatment, and then rebounded during progression...
December 5, 2017: Cell Reports
https://www.readbyqxmd.com/read/29207034/role-of-inhibitor-of-growth-4-in-the-suppression-of-human-melanoma-cells-through-the-fas-fasl-mediated-apoptosis-pathway
#9
Limin Cai, Haiyan Li, Cui Chen, Xue Cheng, Yu Wang, Jing Liu, Yongchen Wang, Lijun Hao
Melanoma, the most aggressive form of skin cancer, is notoriously resistant to all current available therapies. Inhibitor of growth 4 (ING4), a novel member of the ING family of proteins, has previously been shown to play a critical role in the development of multiple tumors by regulating apoptosis, proliferation, cell cycle progress, migration and invasion. However, the functional role of ING4 in human melanoma remains unclear. To fully understand its potential role in human melanoma, in the present study, lentivirus (LV)‑ING4 and LV‑ING4‑short hairpin RNA were constructed and transfected into human melanoma A375 cells...
November 20, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29202482/ligand-activated-bmp-signaling-inhibits-cell-differentiation-and-death-to-promote-melanoma
#10
Arvind M Venkatesan, Rajesh Vyas, Alec K Gramann, Karen Dresser, Sharvari Gujja, Sanchita Bhatnagar, Sagar Chhangawala, Camilla Borges Ferreira Gomes, Hualin Simon Xi, Christine G Lian, Yariv Houvras, Yvonne J K Edwards, April Deng, Michael Green, Craig J Ceol
Oncogenomic studies indicate that copy number variation (CNV) alters genes involved in tumor progression; however, identification of specific driver genes affected by CNV has been difficult, as these rearrangements are often contained in large chromosomal intervals among several bystander genes. Here, we addressed this problem and identified a CNV-targeted oncogene by performing comparative oncogenomics of human and zebrafish melanomas. We determined that the gene encoding growth differentiation factor 6 (GDF6), which is the ligand for the BMP family, is recurrently amplified and transcriptionally upregulated in melanoma...
December 4, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29199389/development-and-evaluation-of-a-telephone-communication-protocol-for-the-delivery-of-personalized-melanoma-genomic-risk-to-the-general-population
#11
Georgina L Fenton, Amelia K Smit, Lucinda Freeman, Caro Badcock, Kate Dunlop, Phyllis N Butow, Judy Kirk, Anne E Cust
Communicating personalized genomic risk results for common diseases to the general population as a form of tailored prevention is novel and may require alternative genetic counseling service delivery models. We describe the development and evaluation of a communication protocol for disclosing melanoma genomic risk information to the asymptomatic general population and assess participants' satisfaction and acceptability. Participants (n = 117) were aged 22-69 years, living in New South Wales, Australia and unselected for family history...
December 3, 2017: Journal of Genetic Counseling
https://www.readbyqxmd.com/read/29190698/profiles-of-a-broad-spectrum-of-epigenetic-dna-modifications-in-normal-and-malignant-human-cell-lines-proliferation-rate-is-not-the-major-factor-responsible-for-the-5-hydroxymethyl-2-deoxycytidine-level-in-cultured-cancerous-cell-lines
#12
Marek Foksinski, Ewelina Zarakowska, Daniel Gackowski, Magdalena Skonieczna, Karolina Gajda, Dorota Hudy, Anna Szpila, Karol Bialkowski, Marta Starczak, Anna Labejszo, Jaroslaw Czyz, Joanna Rzeszowska-Wolny, Ryszard Olinski
Active demethylation of 5-methylcytosine moiety in DNA occurs by its sequential oxidation to 5-hydroxymethylcytosine, 5-formylcytosine and 5-carboxycytosine, catalysed by enzymes of the Ten-Eleven Translocation family proteins (TETs 1, 2 and 3). Here we analyzed for the first time all the intermediate products of DNA demethylation pathway in the form of deoxynucleosides (5-methyl-2'-deoxycytidine, 5-(hydroxymethyl)-2'-deoxycytidine, 5-formyl-2'-deoxycytidine and 5-carboxy-2'-deoxycytidine as well as 5-(hydroxymethyl)-2'-deoxyuridine) using automated isotope-dilution online two-dimensional ultra-performance liquid chromatography with tandem mass spectrometry...
2017: PloS One
https://www.readbyqxmd.com/read/29190285/the-interplay-of-uv-and-cutaneous-papillomavirus-infection-in-skin-cancer-development
#13
Daniel Hasche, Sonja Stephan, Ilona Braspenning-Wesch, Julita Mikulec, Martina Niebler, Hermann-Josef Gröne, Christa Flechtenmacher, Baki Akgül, Frank Rösl, Sabrina E Vinzón
Cutaneous human papillomaviruses (HPVs) are considered as cofactors for non-melanoma skin cancer (NMSC) development, especially in association with UVB. Extensively studied transgenic mouse models failed to mimic all aspects of virus-host interactions starting from primary infection to the appearance of a tumor. Using the natural model Mastomys coucha, which reflects the human situation in many aspects, we provide the first evidence that only UVB and Mastomys natalensis papillomavirus (MnPV) infection strongly promote NMSC formation...
November 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/29187689/-a-case-of-leptomeningeal-melanomatosis-with-acute-paraplegia-and-multiple-cranial-nerve-palsies
#14
Kasumi Hattori, Nozomu Matsuda, Takenobu Murakami, Eiichi Ito, Yoshikazu Ugawa
A 62-year-old man with acute paraplegia was transferred to our hospital. He had flaccid paraplegia and multiple cranial nerve palsies, such as mydriasis of the left pupil, abduction palsy of the left eye, hoarseness and dysphagia, but no meningeal irritation signs. MRI of the spinal canal showed swellings of the conus medullaris and the cauda equine, and also contrast enhancement of the spinal meninges. The cerebrospinal fluid (CSF) showed pleocytosis and protein increment. The lymph node was swollen in his right axilla...
November 28, 2017: Rinshō Shinkeigaku, Clinical Neurology
https://www.readbyqxmd.com/read/29186940/patient%C3%A2-s-health-awareness-as-a-significant-link-in-the-process-of-melanoma-diagnostics
#15
Magdalena Wawrzynkiewicz, Małgorzata Radwanek, Agnieszka Oszywa, Anna Wojas-Pelc
INTRODUCTION: Melanoma malignum is a relatively rare neoplasm, among all skin neoplasms, but its related mortality is high. Diagnosis and removal of the lesion at an early stage are crucial for significant increase in chances of survival andis highly determined by patients’ awareness in terms of melanoma risk factors. AIM: The aim of the study was to determine the level of patients’ knowledge and awareness in terms of skin melanoma, its risk factors, health promoting behaviors, as well as learning about the sources of this knowledge...
2017: Przegla̧d Epidemiologiczny
https://www.readbyqxmd.com/read/29172261/knowledge-of-evidence-based-cancer-risk-factors-remains-low-among-new-zealand-adults-findings-from-two-cross-sectional-studies-2001-and-2015
#16
Rosalina Richards, Bronwen McNoe, Ella Iosua, Anthony I Reeder, Richard Egan, Louise Marsh, Lindsay Robertson, Brett Maclennan, Anna TF Latu, Robin Quigg, Anne-Cathrine Petersen
Objective: Cancer risk reduction messages are a part of cancer control efforts around the world. The complex reality is that risk factors differ for different types of cancer, making clear communication of desired behavioural changes more difficult. This study aims to describe awareness of risk factors for breast, bowel, cervical, prostate and lung cancer and cutaneous melanoma among New Zealanders in 2014/15 and identify changes in awareness since 2001. Methods: Two national telephone surveys, the first (CAANZ01) conducted in 2001, included 438 adults (231 females and 207 males, 64% response rate)...
November 26, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/29166932/bap1-case-report-and-insight-into-a-novel-tumor-suppressor
#17
Kanad Ghosh, Badri Modi, William D James, Brian C Capell
BACKGROUND: BRCA1-Associated-Protein 1 (BAP1) is a dynamic tumor suppressor which, when mutated, has been associated with an increased risk of uveal melanoma, cutaneous melanoma, mesothelioma, and several other cancers. Germline BAP1 mutations have been extensively studied, where they have been found to cause hereditary cancer susceptibility. However, their sporadic counterparts, tumors that display a loss of BAP1 expression due to somatically arising mutations in the BAP1 gene, remain a poorly described entity...
November 22, 2017: BMC Dermatology
https://www.readbyqxmd.com/read/29138811/high-expression-of-mage-a9-contributes-to-stemness-and-malignancy-of-human-hepatocellular-carcinoma
#18
Youping Wei, Yanqin Wang, Jing Gong, Lihua Rao, Zhiwei Wu, Teng Nie, Dongling Shi, Liming Zhang
MAGE-A9, a well-characterized cancer testis antigen (CTA), belongs to a member of melanoma antigen gene (MAGE) family. In human malignancies, aberrant expression of MAGE genes correlated with poor clinical prognosis, increased tumor growth, metastases, and enrichment in stem cell populations of certain cancers. Cancer stem cells (CSCs) have been proposed to contribute to the major malignant phenotypes of liver cancer, including recurrence, metastasis and chemoresistance. However, expression and potential role of MAGE-A9 in liver cancer stem cells (LCSCs) still remain unclear...
November 9, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/29133623/immu-140-a-novel-sn-38-antibody-drug-conjugate-targeting-hla-dr-mediates-dual-cytotoxic-effects-in-hematological-cancers-and-malignant-melanoma
#19
Thomas M Cardillo, Serengulam V Govindan, Maria B Zalath, Diane L Rossi, Yang Wang, Chien-Hsing Chang, David M Goldenberg
HLA-DR is a member of the MHC class II antigen family expressed on hematological and solid tumors.  Antibodies directed against HLA-DR have demonstrated some clinical success, but toxicities limited development.  IMMU-140 is an anti-HLA-DR antibody-drug conjugate comprised of the active metabolite of irinotecan, SN-38, conjugated to a humanized anti-HLA-DR IgG4 antibody (IMMU-114); the IgG4 naked antibody is devoid of immune functions. Our aim was to determine if SN-38, the metabolite of a drug not commonly used in hematopoietic cancers, would be effective and safe when targeted to HLA-DR-expressing tumors...
November 13, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/29113311/the-anti-apoptotic-bag3-protein-is-involved-in-braf-inhibitor-resistance-in-melanoma-cells
#20
Luana Guerriero, Giuseppe Palmieri, Margot De Marco, Antonio Cossu, Paolo Remondelli, Mario Capunzo, Maria Caterina Turco, Alessandra Rosati
BAG3 protein, a member of BAG family of co-chaperones, has a pro-survival role in several tumour types. BAG3 anti-apoptotic properties rely on its characteristic to bind several intracellular partners, thereby modulating crucial events such as apoptosis, differentiation, cell motility, and autophagy. In human melanomas, BAG3 positivity is correlated with the aggressiveness of the tumour cells and can sustain IKK-γ levels, allowing a sustained activation of NF-κB. Furthermore, BAG3 is able to modulate BRAFV600E levels and activity in thyroid carcinomas...
October 6, 2017: Oncotarget
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