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Cutaneous melanoma

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https://www.readbyqxmd.com/read/27914105/genetic-variants-in-the-integrin-signaling-pathway-genes-predict-cutaneous-melanoma-survival
#1
Hongyu Li, Yanru Wang, Hongliang Liu, Qiong Shi, Yinghui Xu, Wenting Wu, Dakai Zhu, Christopher I Amos, Shenying Fang, Jeffrey E Lee, Jiali Han, Qingyi Wei
To identify genetic variants involved in prognosis of cutaneous melanoma (CM), we investigated associations of single nucleotide polymorphisms (SNPs) of genes in the integrin signaling pathway with CM survival by re-analyzing a published genome-wide association study (GWAS) from The University of Texas M.D. Anderson Cancer Center (MDACC), and then validated significant SNPs in another GWAS from Harvard University. In the MDACC study, 1,148 SNPs were significantly associated with CM-specific survival (CMSS) (P ≤ 0...
December 3, 2016: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/27911979/clinicopathological-features-and-clinical-outcomes-associated-with-tp53-and-braf-n-on-v-600-mutations-in-cutaneous-melanoma-patients
#2
Dae Won Kim, Lauren E Haydu, Aron Y Joon, Roland L Bassett, Alan E Siroy, Michael T Tetzlaff, Mark J Routbort, Rodabe N Amaria, Jennifer A Wargo, Jennifer L McQuade, Jan Kemnade, Patrick Hwu, Scott E Woodman, Jason Roszik, Kevin B Kim, Jeffrey E Gershenwald, Alexander J Lazar, Michael A Davies
BACKGROUND: BRAF(V600) , NRAS, TP53, and BRAF(Non-V600) are among the most common mutations detected in non-acral cutaneous melanoma patients. Although several studies have identified clinical and pathological features associated with BRAF(V600) and NRAS mutations, limited data are available regarding the correlates and significance of TP53 and BRAF(Non-V600) mutations. METHODS: This study analyzed the patient demographics, primary tumor features, and clinical outcomes of a large cohort of non-acral cutaneous melanoma patients who had undergone clinically indicated molecular testing (n = 926)...
December 2, 2016: Cancer
https://www.readbyqxmd.com/read/27911450/uveal-melanoma-relatively-rare-but-deadly-cancer
#3
REVIEW
S Kaliki, C L Shields
Although it is a relatively rare disease, primarily found in the Caucasian population, uveal melanoma is the most common primary intraocular tumor in adults with a mean age-adjusted incidence of 5.1 cases per million per year. Tumors are located either in iris (4%), ciliary body (6%), or choroid (90%). The host susceptibility factors for uveal melanoma include fair skin, light eye color, inability to tan, ocular or oculodermal melanocytosis, cutaneous or iris or choroidal nevus, and BRCA1-associated protein 1 mutation...
December 2, 2016: Eye
https://www.readbyqxmd.com/read/27910800/routine-x-ray-of-the-chest-is-not-justified-in-staging-of-cutaneous-melanoma-patients
#4
Caroline Asirvatham Gjørup, Helle Westergren Hendel, Rita Kaae Pilegaard, Cecilie Balslev Willert, Lisbet Rosenkrantz Hölmich
INTRODUCTION: The incidence of cutaneous melanoma is increasing in Denmark and worldwide. However, the prevalence of distant metastases at the time of diagnosis has decreased to 1%. We therefore questioned the value of routine preoperative chest X-ray (CXR) for staging asymptomatic melanoma patients and hypothesised that routine CXR is not justified. METHODS: A retrospective study was conducted on patients undergoing wide local excision and sentinel lymph node biopsy for cutaneous melanoma in the period from 2010 to 2014...
December 2016: Danish Medical Journal
https://www.readbyqxmd.com/read/27906109/primary-melanoma-of-the-small-bowel-revealed-by-gastrointestinal-bleeding-a-case-report
#5
B Ait Idir, A Riany, A Jahid, B Chad
BACKGROUND: Primary melanoma of the small bowel is extremely rare. Only a limited number of cases have been described in the literature. Mostly, the small intestine is affected by metastatic tumors of other primary lesions, especially cutaneous. CASE PRESENTATION: We report the case of a 75-year-old North African woman with a small bowel melanoma. The diagnosis was made by histological examination and immunohistochemical profile matching after a segmental small bowel resection...
December 1, 2016: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/27900851/metastatic-pathways-in-patients-with-cutaneous-melanoma
#6
REVIEW
Nikki R Adler, Andrew Haydon, Catriona A McLean, John W Kelly, Victoria J Mar
Metastasis represents the end product of an elaborate biological process, which is determined by a complex interplay between metastatic tumour cells, host factors and homoeostatic mechanisms. Cutaneous melanoma can metastasize haematogenously or lymphogenously. The three predominant models that endeavour to explain the patterns of melanoma progression are the stepwise spread model, the simultaneous spread model and the model of differential spread. The time course to the development of metastases differs between the different metastatic routes...
October 19, 2016: Pigment Cell & Melanoma Research
https://www.readbyqxmd.com/read/27900049/toll-like-receptors-and-cutaneous-melanoma
#7
Ilaria Coati, Serena Miotto, Irene Zanetti, Mauro Alaibac
Innate immune cells recognize highly conserved pathogen-associated molecular patterns (PAMPs) via pattern recognition receptors (PRRs). Previous studies have demonstrated that PRRs also recognize endogenous molecules, termed damage-associated molecular patterns (DAMPs) that are derived from damaged cells. PRRs include Toll-like receptors (TLRs), scavenger receptors, C-type lectin receptors and nucleotide oligomerization domain-like receptors. To date, 10 TLRs have been identified in humans and each receptor responds to a different ligand...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27899996/quantitative-label-free-mass-spectrometry-analysis-of-formalin-fixed-paraffin-embedded-tissue-representing-the-invasive-cutaneous-malignant-melanoma-proteome
#8
Paul Dowling, Benvon Moran, Edel McAuley, Paula Meleady, Michael Henry, Martin Clynes, Mairin McMenamin, Niamh Leonard, Mary Monks, Bairbre Wynne, Patrick Ormond, Annemarie Larkin
Understanding the events at a protein level that govern the progression from melanoma in situ to invasive melanoma are important areas of current research to be developed. Recent advances in the analysis of formalin-fixed, paraffin-embedded tissue by proteomics, particularly using the filter-aided sample preparation protocol, has opened up the possibility of studying vast archives of clinical material and associated medical records. In the present study, quantitative protein profiling was performed using tandem mass spectrometry, and the proteome differences between melanoma in situ and invasive melanoma were compared...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27899960/genetics-and-epigenetics-of-melanoma
#9
Xiao-Ying Zhang, Pei-Ying Zhang
Cancer affects multiple organs in the body Malignant melanoma involves the invasion of skin and occasionally mucosal membrane or eye choroidal tissues. The incidence of cutaneous malignant melanoma is on the increase worldwide and is a major concern in current research. The increase is associated with UV irradiation-induced genetic aberrations that stimulate skin melanocytes to develop unlimited growth. This eventually leads to cell immortality, which in turn causes metastases. The present review examines the genetics and epigenetics of this pathological state together with recent perspectives of the therapeutic management of disease...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27898656/interval-cancers-after-skin-cancer-screening-incidence-tumour-characteristics-and-risk-factors-for-cutaneous-melanoma
#10
J Hübner, A Waldmann, A C Geller, M A Weinstock, N Eisemann, M Noftz, S Bertram, S Nolte, B Volkmer, R Greinert, E Breitbart, A Katalinic
BACKGROUND: The rate of interval cancers is an established indicator for the performance of a cancer-screening programme. METHODS: We examined the incidence, tumour characteristics and risk factors of melanoma interval cancers that occurred in participants of the SCREEN project, which was carried out 2003/2004 in Schleswig-Holstein, Germany. Data from 350 306 SCREEN participants, who had been screened negative for melanoma, were linked to data of the state cancer registry...
November 29, 2016: British Journal of Cancer
https://www.readbyqxmd.com/read/27894618/primary-pulmonary-pleural-melanoma-in-a-13-year-old-presenting-as-pleural-effusion
#11
Nick Baniak, Mark Podberezin, Selliah C Kanthan, Rani Kanthan
Melanoma in children, adolescents, and young adults is uncommon and reported almost exclusively as cutaneous melanoma. Melanoma presenting as a pleural effusion is very rare in adults and not reported in the pediatric population. Additionally, primary pulmonary melanoma is overall very rare and undocumented in pediatric patients. Furthermore, the distinction between a primary pulmonary/pleural melanoma versus a regressed cutaneous melanoma with pulmonary/pleural metastases remains extremely challenging. We discuss a case of a previously healthy 13-year-old girl that presented with a left-sided pleural effusion...
November 16, 2016: Pathology, Research and Practice
https://www.readbyqxmd.com/read/27893841/seroprevalence-of-cutaneous-human-papillomaviruses-and-the-risk-of-external-genital-lesions-in-men-a-nested-case-control-study
#12
Shams Rahman, Dana E Rollison, Christine M Pierce Campbell, Tim Waterboer, Angelika Michel, Michael Pawlita, Luisa L Villa, Eduardo Lazcano Ponce, Wei Wang, Amy R Borenstein, Anna R Giuliano
BACKGROUND: A variety of cutaneous human papillomaviruses (HPV) are detectable in genital epithelial lesions in men and non-melanoma skin cancer patients. It remains unclear whether these viruses are associated causally with skin lesions. To date, no study has prospectively examined the association between cutaneous HPV seropositivity and development of external genital lesions (EGLs) in men. OBJECTIVES: To examine the association between seropositivity to cutaneous HPV types and the risk of subsequent development of EGLs...
2016: PloS One
https://www.readbyqxmd.com/read/27893540/eight-years-experience-of-sentinel-lymph-node-biopsy-in-melanoma-using-lymphoscintigraphy-and-gamma-probe-detection-after-radiocolloid-mapping
#13
Nathalie Pham Dang, Sophie Cassier, Aurélien Mulliez, Sandrine Mansard, Michel DʼIncan, Isabelle Barthélémy
BACKGROUND: Isosulfan blue dye peripheral injection is used in preoperative sentinel lymph node (SLN) identification alone or, to increase sensitivity, in conjunction with radiocolloid mapping. However, isosulfan blue dye has certain drawbacks and limitations. OBJECTIVE: This study assesses the authors' experience of SLN biopsy using only radiocolloid tracer. MATERIALS AND METHODS: Between 2000 and 2008, 218 patients underwent SLN biopsy with radiocolloid mapping, preoperative localization by lymphoscintigraphy and intraoperative confirmation by gamma probe in primary malignant cutaneous melanoma...
November 23, 2016: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/27890785/genomic-characterization-of-dysplastic-nevi-unveils-implications-for-diagnosis-of-melanoma
#14
Rachel D Melamed, Iraz T Aydin, Geena Susan Rajan, Robert Phelps, David N Silvers, Kevin J Emmett, Georg Brunner, Raul Rabadan, Julide Tok Celebi
A well-defined risk factor and precursor for cutaneous melanoma is the dysplastic nevus. These benign tumors represent clonal hyperproliferation of melanocytes that are in a senescent-like state, but with occasional malignant transformation events. To portray the mutational repertoire of dysplastic nevi in patients with the dysplastic nevus syndrome, and to determine the discriminatory profiles of melanocytic nevi (including dysplastic nevi) from melanoma, we sequenced exomes of melanocytic nevi including dysplastic nevi (n = 19), followed by a targeted gene panel (785 genes) characterization of melanocytic nevi (n = 46) and primary melanomas (n = 42)...
November 24, 2016: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/27889616/developments-in-l2-based-human-papillomavirus-hpv-vaccines
#15
REVIEW
Christina Schellenbacher, Richard B S Roden, Reinhard Kirnbauer
Infections with sexually transmitted high-risk Human Papillomavirus (hrHPV), of which there are at least 15 genotypes, are responsible for a tremendous disease burden by causing cervical, and subsets of other ano-genital and oro-pharyngeal carcinomas, together representing 5% of all cancer cases worldwide. HPV subunit vaccines consisting of virus-like particles (VLP) self-assembled from major capsid protein L1 plus adjuvant have been licensed. Prophylactic vaccinations with the 2-valent (HPV16/18), 4-valent (HPV6/11/16/18), or 9-valent (HPV6/11/16/18/31/33/45/52/58) vaccine induce high-titer neutralizing antibodies restricted to the vaccine types that cause up to 90% of cervical carcinomas, a subset of other ano-genital and oro-pharyngeal cancers and 90% of benign ano-genital warts (condylomata)...
November 23, 2016: Virus Research
https://www.readbyqxmd.com/read/27889195/metastasectomy-in-cutaneous-melanoma
#16
REVIEW
K Lasithiotakis, O Zoras
Metastectomy remains the only treatment in malignant melanoma to offer complete pathologic response within a few days of in-hospital stay. It has been historically associated with the highest survival rates in the literature reported for patients of this stage. However, only a minority of patients are amenable to curative resection of distant metastatic disease. This patient group exhibit slow growing oligometastases as indicated by: a. Long disease free interval after treatment of their primary tumours and b...
November 13, 2016: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/27887672/cost-of-cutaneous-melanoma-by-tumor-stage-a-descriptive-analysis
#17
P Serra-Arbeloa, Á O Rabines-Juárez, M S Álvarez-Ruiz, F Guillén-Grima
BACKGROUND AND OBJECTIVE: The basis for optimal resource allocation is an understanding of requirements during the diagnostic and treatment phases. Costs associated with the rising incidence of cutaneous melanoma are considerable. We undertook an up-to-date analysis of the cost of diagnosis, treatment, and follow-up according to tumor stage. METHODS: We constructed descriptive tables following a theoretical model of direct costs based on amounts published in directives for the Spanish national health system and in international guidelines for managing cutaneous melanoma according to stage at diagnosis and clinical course...
November 22, 2016: Actas Dermo-sifiliográficas
https://www.readbyqxmd.com/read/27886404/adipophilin-expression-in-cutaneous-malignant-melanoma
#18
Masakazu Fujimoto, Ibu Matsuzaki, Yuki Yamamoto, Akihiko Yoshizawa, Kenji Warigaya, Yoshifumi Iwahashi, Fumiyoshi Kojima, Fukumi Furukawa, Shin-Ichi Murata
BACKGROUND: The lipogenic pathway is upregulated in cancer cells, including melanomas. However, the pathological significance of cellular lipids in melanocytic lesions has yet to be determined. In this study, we evaluated intracytoplasmic lipid droplets in melanocytic nevi (MNs) and malignant melanomas via immunohistochemical analysis of adipophilin (ADP), which coats lipid droplets. METHODS: One hundred primary cutaneous melanocytic lesions (33 MNs, 17 melanomas in situ [MIS], and 50 invasive melanomas [IMs]) were immunostained for ADP...
November 25, 2016: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/27883956/efficacy-of-braf-inhibitors-in-asian-metastatic-melanoma-patients-potential-implications-of-genomic-sequencing-in-braf-mutated-melanoma
#19
Hee Kyung Kim, Sunyoung Lee, Kyung Kim, Mi Hwa Heo, Hansang Lee, Jinhyun Cho, Nayoung K D Kim, Woongyang Park, Su Jin Lee, Jung Han Kim, Kee-Taek Jang, Sang-Hee Choi, Jeeyun Lee
BACKGROUND: The BRAF inhibitors vemurafenib and dabrafenib are currently the standard treatment for metastatic melanoma with BRAF V600 mutations. However, given the rarity of noncutaneous melanoma, including acral and mucosal subtypes, the efficacy of BRAF inhibitors for this subset of patients has not been extensively investigated. Acquired resistance generally appears 6 to 8 months after treatment with a BRAF inhibitor, and the mechanism of resistance is not well established. METHODS: We examined treatment outcomes for patients diagnosed with metastatic melanoma and treated with BRAF inhibitors at Samsung Medical Center between April 2013 and December 2015...
November 21, 2016: Translational Oncology
https://www.readbyqxmd.com/read/27882308/prognostic-impact-of-autophagy-biomarkers-for-cutaneous-melanoma
#20
REVIEW
Diana Y L Tang, Robert A Ellis, Penny E Lovat
Prognosis and survival for malignant melanoma is highly dependent on early diagnosis and treatment. While the American Joint Committee on Cancer (AJCC) criterion provides a means of staging melanomas and guiding treatment approaches, it is unable to identify the risk of disease progression of early stage tumors or provide reliable stratification for novel adjuvant therapies. The demand for credible prognostic/companion biomarkers able to identify high-risk melanoma subgroups as well as guide more effective personalized/precision-based therapy is therefore of paramount importance...
2016: Frontiers in Oncology
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