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Cutaneous melanoma

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https://www.readbyqxmd.com/read/29241156/incidence-of-cutaneous-malignant-melanoma-in-iranian-provinces-and-american-states-matched-on-ultraviolet-radiation-exposure-an-ecologic-study
#1
Roxana Moslehi, Nur Zeinomar, Francis P Boscoe
OBJECTIVES: Ultraviolet radiation (UVR), with UVB and UVA as the relevant components, is a risk factor for melanoma. Complete ascertainment and registration of melanoma in Iran was conducted in five provinces (Ardabil, Golestan, Mazandaran, Gilan and Kerman) during 1996-2000. The aim of our study was to compare population-based incidence data from these provinces with rates in the United States (US) while standardizing ambient UVR. METHODS: Population-based rates representing all incident cases of melanoma (1996-2000) across the five Iranian provinces were compared to rates of melanoma among white non-Hispanics in the US...
December 11, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29240581/cutaneous-melanocytoma-with-crtc1-trim11-fusion-report-of-5-cases-resembling-clear-cell-sarcoma
#2
Lucie Cellier, Emilie Perron, Daniel Pissaloux, Marie Karanian, Veronique Haddad, Laurent Alberti, Arnaud de la Fouchardière
We report 5 cases of primary intradermal nodular unpigmented tumors with a melanocytic immunophenotype associated with a novel CRTC1-TRIM11 fusion. Clinically, the cutaneous nodules were slowly growing in 3 women and 2 men (25 to 82 y old, median, 28 y) with no specific topography. Lesion size ranged from 4 to 12 mm (median, 5 mm). The tumors were strictly located in the dermis with a nodular pattern. The cells were arranged in confluent nests and fascicules. Central fibronecrotic areas were present in 2 cases...
December 7, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/29240580/prognostic-significance-of-periadnexal-extension-in-cutaneous-melanoma-and-its-implications-for-pathologic-reporting-and-staging
#3
Tristan J Dodds, Serigne Lo, Louise Jackett, Omgo Nieweg, John F Thompson, Richard A Scolyer
Tumor thickness is the strongest predictor of outcome for clinically localized melanoma. Therefore, accurate assessment is critical for appropriate staging, reliable estimation of prognosis, and management. When melanoma extends alongside skin adnexal structures more deeply than the main tumor mass (periadnexal extension), it is currently unknown whether the prognosis is more accurately reflected by the deepest point of periadnexal tumor extension or the main tumor mass. This study sought to address this question...
December 7, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/29239489/how-many-melanomas-might-be-prevented-if-more-people-applied-sunscreen-regularly
#4
C M Olsen, L F Wilson, A C Green, N Biswas, J Loyalka, D C Whiteman
BACKGROUND: Ultraviolet radiation causes cutaneous melanoma. Sunscreen prevents sunburn and protects skin cells against mutations. High-quality epidemiological studies suggest regular sunscreen use prevents melanoma. OBJECTIVES: To calculate the potential impact fraction (PIF) for melanoma in the U.S.A. and Australia assuming a range of different intervention scenarios intended to increase sunscreen use. METHODS: We calculated the PIF, the proportional difference between the observed number of melanomas arising under prevailing levels of sunscreen use compared with the number expected under counterfactual scenarios...
December 14, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/29237090/distinctive-cutaneous-and-systemic-features-associated-with-specific-anti-myositis-antibodies-in-adults-with-dermatomyositis-a-prospective-multicentric-study-of-117-patients
#5
M Best, M Jachiet, N Molinari, F Manna, C Girard, V Pallure, A Cosnes, D Lipsker, T Hubiche, J-L Schmutz, Y Le Corre, N Cordel, M Dandurand, O Dereure, B Guillot, A Du-Thanh, C Bulai Livideanu, F Chasset, J-D Bouaziz, C Francès, D Bengoufa, T Vincent, D Bessis
BACKGROUND: Identification of myositis-specific autoantibodies (MSA) for dermatomyositis (DM) could allow the characterization of an antibody-associated clinical phenotype. OBJECTIVE: We sought to define the clinical phenotype of DM and the risk of cancer, interstitial lung disease (ILD) and calcinosis based on MSA. METHODS: A 3.5-year multicenter prospective study of adult DM patients was conducted to determine the clinical phenotype associated with MSA and the presence of cancer, ILD and calcinosis...
December 13, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29236030/the-tumor-suppressor-p53-in-mucosal-melanoma-of-the-head-and-neck
#6
REVIEW
Marie Kristin Fritsche, Andreas Knopf
Despite worldwide prevention programs, the incidence for cutaneous melanoma is continuously increasing. Mucosal melanoma (MM) represents a rare but highly aggressive phenotype of common melanoma with predilection in the sinonasal system. Far away from ultraviolet sun exposure, the molecular mechanisms underlying tumorigenesis and the highly aggressive clinical behavior are poorly understood. In many solid malignomas of the head and neck region, p53 tumor suppressor functions as oncogene due to p53 protein stabilizing mutation...
December 13, 2017: Genes
https://www.readbyqxmd.com/read/29235570/targeting-negative-regulation-of-p53-by-mdm2-and-wip1-as-a-therapeutic-strategy-in-cutaneous-melanoma
#7
Chiao-En Wu, Arman Esfandiari, Yi-Hsuan Ho, Nan Wang, Ahmed Khairallah Mahdi, Erhan Aptullahoglu, Penny Lovat, John Lunec
BACKGROUND: Cutaneous melanoma is the most serious skin malignancy and new therapeutic strategies are needed for advanced melanoma. TP53 mutations are rare in cutaneous melanoma and hence activation of wild-type p53 is a potential therapeutic strategy in cutaneous melanoma. Here, we investigated the WIP1 inhibitor, GSK2830371, and MDM2-p53 binding antagonists (nutlin-3, RG7388 and HDM201) alone and in combination treatment in cutaneous melanoma cell lines and explored the mechanistic basis of these responses in relation to the genotype and induced gene expression profile of the cells...
December 12, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/29235153/acral-melanoma-foot-lesions-part-2-clinical-presentation-diagnosis-and-management
#8
REVIEW
A Desai, R Ugorji, A Khachemoune
Acral melanoma (AM) is a rare subtype of cutaneous malignant melanoma found on acral skin, primarily on the soles of the feet. Although rare, it is the most common subtype of melanoma found in patients of African or Asian ethnicity and has a poor prognosis, often because of the more advanced stage of presentation at diagnosis. In the second of this two-part series, we review the clinical presentation, histopathology, diagnosis and management of AM. Clinically, AM presents as a variegated lesion with blue-black pigment and irregular borders on acral skin...
December 13, 2017: Clinical and Experimental 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
#9
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/29231241/population-based-incidence-and-melanoma-specific-survival-of-cutaneous-malignant-melanoma-in-a-colombian-population-2000-2009
#10
Evy Reyes, Claudia Uribe, Esther de Vries
BACKGROUND: Demographic, clinical, and morphological characteristics of cutaneous melanoma are unknown for the Colombian population. We aim to provide these characteristics as well as population-based incidence and survival data. METHODS: All patients with an invasive cutaneous melanoma diagnosed in the period 2000-2009 registered in the population-based cancer registry of the metropolitan area of Bucaramanga were included for analysis (n = 169). Age-standardized incidence rates were calculated and melanoma-specific and overall survival estimated with follow-up until June 9, 2016, using Kaplan-Meier methodology, stratifying for gender, anatomical localization, and type of affiliation to the social security system...
December 12, 2017: International Journal of Dermatology
https://www.readbyqxmd.com/read/29229974/ensemble-modeling-approach-targeting-heterogeneous-rna-seq-data-application-to-melanoma-pseudogenes
#11
Enrico Capobianco, Camilo Valdes, Samanta Sarti, Zhijie Jiang, Laura Poliseno, Nicolas F Tsinoremas
We studied the transcriptome landscape of skin cutaneous melanoma (SKCM) using 103 primary tumor samples from TCGA, and measured the expression levels of both protein coding genes and non-coding RNAs (ncRNAs). In particular, we emphasized pseudogenes potentially relevant to this cancer. While cataloguing the profiles based on the known biotypes, all the employed RNA-Seq methods generated just a small consensus of significant biotypes. We thus designed an approach to reconcile the profiles from all methods following a simple strategy: we selected genes that were confirmed as differentially expressed by the ensemble predictions obtained in a regression model...
December 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29229575/anti-melanoma-differentiation-associated-gene-5-mda5-dermatomyositis-a-concise-review-with-an-emphasis-on-distinctive-clinical-features
#12
REVIEW
Drew Jb Kurtzman, Ruth Ann Vleugels
Melanoma differentiation-associated gene 5 (MDA5) is a recently described autoantigen target in a subset of patients with dermatomyositis (DM). Anti-MDA5 DM is characterized by a unique mucocutaneous and systemic phenotype that includes cutaneous and oral ulceration, painful palmar papules, alopecia, panniculitis, arthritis, a lower incidence of myositis, and, importantly, an elevated risk of interstitial lung disease, with a potentially fatal course. Because the clinical features may differ substantially from those typically observed in cutaneous DM, the diagnosis is often overlooked, which may negatively affect patient outcomes...
December 8, 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/29228734/cutaneous-melanoma-primary-site-is-linked-to-nevus-density
#13
Alejandro Martin-Gorgojo, Marta Llinares, Amaya Virós, Celia Requena, Zaida Garcia-Casado, Víctor Traves, Rajiv Kumar, Eduardo Nagore
There are at least two pathways driving cutaneous melanoma; one is linked to an inherent melanoma susceptibility to nevi development and the second to environmental cumulative ultraviolet light exposure. In this study, we examined the relation between nevus density, accrued sun damage and the site of primary melanoma excision. In a series of 888 consecutive cutaneous melanoma patients, melanomas appearing in skin areas with a high relative nevus density were most prominent in men, with an elevated nevus count, at sites without solar elastosis, but with an epidemiological history of previous sunburn...
November 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29228682/epidermal-ppar%C3%AE-influences-subcutaneous-tumor-growth-and-acts-through-tnf-%C3%AE-to-regulate-contact-hypersensitivity-and-the-acute-photoresponse
#14
Raymond L Konger, Ethel Derr-Yellin, Jeffrey B Travers, Jesus A Ocana, Ravi P Sahu
It is known that ultraviolet B (UVB) induces PPARγ ligand formation while loss of murine epidermal PPARγ (Pparg-/-epi) promotes UVB-induced apoptosis, inflammation, and carcinogenesis. PPARγ is known to suppress tumor necrosis factor-α (TNF-α) production. TNF-α is also known to promote UVB-induced inflammation, apoptosis, and immunosuppression. We show that Pparg-/-epi mice exhibit increased baseline TNF-α expression. Neutralizing Abs to TNF-α block the increased photo-inflammation and photo-toxicity that is observed in Pparg-/-epi mouse skin...
November 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29228470/melanoma-patterns-of-care-in-ontario-a-call-for-a-strategic-alignment-of-multidisciplinary-care
#15
Nicole J Look Hong, Stephanie Y Cheng, Nancy N Baxter, Frances C Wright
BACKGROUND AND OBJECTIVES: Variability in melanoma management has prompted concerns about equitable and timely treatment. We investigated patterns of melanoma diagnosis and treatment using population-level data. METHODS: Patients with invasive cutaneous melanoma were identified retrospectively from the Ontario Cancer Registry (2003-2012) and deterministically linked with administrative databases to identify incidence, disease characteristics, geographic origin, and multimodal treatment within a year of diagnosis...
December 11, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29227308/medical-bioinformatics-in-melanoma
#16
Phil F Cheng
PURPOSE OF REVIEW: Bioinformatic insights from next-generation sequencing has been integral in understanding melanoma biology, resistance to treatment and provided new avenues for melanoma treatment. Whole-genome sequencing, whole-exome sequencing and RNA sequencing has redefined the molecular classification of melanoma, revealed distinct genetic aberrations that define clinical subtypes of melanoma and uncovered the diverse heterogeneity that resides in an individual tumor. RECENT FINDINGS: In this review, we will summarize the recent whole-genome study that catalogs the genomic landscape across many melanoma subtypes, the single-cell RNA sequencing studies that interrogates tumor heterogeneity and the personalized vaccine approaches to melanoma treatment...
December 8, 2017: Current Opinion in Oncology
https://www.readbyqxmd.com/read/29226953/micrornas-in-cutaneous-melanoma-role-as-diagnostic-and-prognostic-biomarkers
#17
REVIEW
Casey L Ross, Shivani Kaushik, Rodrigo Valdes-Rodriguez, Rina Anvekar
Melanoma is the leading cause of skin cancer deaths in the United States, and its incidence has been rising steadily for the past 30 years (Aftab et al, 2014). A more complete understanding of the molecular mechanisms that drive melanomagenesis is crucial to improve diagnosis, prognostication, and treatment of this disease. Given that melanoma survival rates are better when the disease is detected early, precise diagnostic tests for early melanoma detection would be extremely useful. In addition, as survival rates decrease drastically when the disease becomes metastatic, improved tools to more precisely identify high-risk patients as well as to predict treatment response are necessary...
December 11, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29226425/intraventricular-melanocytoma-diagnosis-confirmed-by-gene-mutation-profile
#18
Ulrich J Knappe, Iris Tischoff, Andrea Tannapfel, Wolf-Dieter Reinbold, Inga Möller, Antje Sucker, Dirk Schadendorf, Klaus G Griewank, Johannes A P van de Nes
Primary leptomeningeal melanocytic tumors (PLMTs) are rare. They usually arise along the spinal cord and at the skull base. Here we report on a patient with a very rare intraventricular melanocytoma. Histologically, a melanocytic tumor was clearly diagnosed. However, to make the uncommon diagnosis of an intraventricular melanocytoma, metastatic melanoma needed to be excluded. Next generation sequencing covering gene mutations that may occur in PLMTs and cutaneous melanoma was performed. The unique gene mutation profile detected, consisting of an activating CYSLTR2 L129Q mutation and EIF1AX G9R mutation and a lack of mutations in genes known to occur in metastatic melanoma (i...
December 11, 2017: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/29225988/effective-administration-of-rituximab-in-anti-mda5-antibody-positive-dermatomyositis-with-rapidly-progressive-interstitial-lung-disease-and-refractory-cutaneous-involvement-a-case-report-and-literature-review
#19
Yuka Ogawa, Dai Kishida, Yasuhiro Shimojima, Koichi Hayashi, Yoshiki Sekijima
We describe the case of a 48-year-old man with dermatomyositis (DM) who demonstrated rapidly progressive interstitial lung disease (RP-ILD) and refractory cutaneous involvement together with high levels of anti-melanoma differentiation-associated gene 5 antibody (anti-MDA5-Ab). Even after combination immunosuppressive therapy including a corticosteroid, cyclosporine A, and intravenous cyclophosphamide, his respiratory insufficiency and cutaneous involvement progressively worsened. However, the administration of rituximab (RTX) resulted in clinical remission as well as a visible reduction in anti-MDA5-Ab levels, suggesting that RTX could be a useful remedy in cases refractory to conventional immunosuppressive agents, especially those of RP-ILD related to anti-MDA5-Ab-positive DM...
2017: Case Reports in Rheumatology
https://www.readbyqxmd.com/read/29221649/-two-cases-of-granuloma-annulare-under-anti-pd1-therapy
#20
R Charollais, F Aubin, B Roche-Kubler, E Puzenat
BACKGROUND: Granuloma annulare as a granulomatous cutaneous reaction may be drug-induced. Immune checkpoint inhibitors including programmed death-1 (PD-1) inhibitors show remarkable antitumor activity and are approved for melanoma and other cancers. Different immune-related adverse effects have been described. We report herein a rare adverse effect of anti-PD1 therapy given for metastatic melanoma : granuloma annulare. PATIENTS AND METHODS: Two women receiving pembrolizumab metastatic melanoma presented with granuloma annulare...
December 5, 2017: Annales de Dermatologie et de Vénéréologie
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