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melanoma prognosis

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https://www.readbyqxmd.com/read/29774360/histologic-mimics-of-malignant-melanoma
#1
Caroline Bsirini, Bruce R Smoller
Although spongiotic (eczematous), psoriatic and cutaneous skin infections are among the most common dermatology consultations, melanocytic lesions - including the different types of nevi and melanomas - are among those that cause a great deal of concern and stress to patients and their clinicians. A diagnosis of benign melanocytic nevus carries a very good prognosis. However, a diagnosis of melanoma might imply more aggressive treatment, lifelong surveillance and a worse prognosis. Differentiating between these conditions is not always a straightforward process for clinicians and pathologists...
May 18, 2018: Singapore Medical Journal
https://www.readbyqxmd.com/read/29774094/selumetinib-based-therapy-in-uveal-melanoma-patient-derived-xenografts
#2
Didier Decaudin, Rania El Botty, Béré Diallo, Gerald Massonnet, Justine Fleury, Adnan Naguez, Chloé Raymondie, Emma Davies, Aaron Smith, Joanne Wilson, Colin Howes, Paul D Smith, Nathalie Cassoux, Sophie Piperno-Neumann, Sergio Roman-Roman, Fariba Némati
The prognosis of metastatic uveal melanoma (UM) is among the worst of all human cancers. The identification of near-ubiquitous GNAQ/GNA11 mutations and the activation of MAPK signaling in UM have raised hopes of more effective, targeted therapies, based on MEK inhibition, for example. We evaluated the potential of drug combinations to increase the efficacy of the MEK inhibitor selumetinib (AZD6244, ARRY-142886), in UM cell lines and Patient-Derived Xenografts. We first evaluated the combination of selumetinib and DTIC...
April 24, 2018: Oncotarget
https://www.readbyqxmd.com/read/29767255/bioinformatic-analyses-reveal-the-key-pathways-and-genes-in-the-cxcr4-mediated-mesenchymal-subtype-of-glioblastoma
#3
Li Yi, Luqing Tong, Tao Li, Long Hai, Iruni Roshanie Abeysekera, Zhennan Tao, Haiwen Ma, Peidong Liu, Yang Xie, Jiabo Li, Feng Yuan, Shengping Yu, Xuejun Yang
Glioblastoma multiforme (GBM) is one of the most lethal types of tumour, despite severe treatment methods. The Cancer Genome Atlas has categorised GBMs into proneural, neural, classical and mesenchymal subtypes; the mesenchymal subgroup has the worst prognosis. CXCR4 has been reported as selectively overexpressed in the mesenchymal subtype and positively associated with MES markers. However, to the best of our knowledge the underlying mechanisms regarding how CXCR4 may regulate mesenchymal GBM are still unknown...
May 11, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29766779/technetium-99m-based-radiopharmaceuticals-in-sentinel-lymph-node-biopsy-gynecologic-oncology-perspective
#4
Kamil Zalewski, Malgorzata Benke, Bartlomiej Mirocha, Jakub Radziszewski, Magdalena Chechlinska, Magdalena Kowalewska
Technetium (99mTc)-radiolabeled colloids are popular tracers used to map lymphatic vessels and regional lymph nodes (LNs). The regional LN status is a significant determinant of cancer stage and patient prognosis, and strongly influences treatment. Regional LN dissection has become part of surgical treatment. However, not all patients with LN involvement benefit from extensive lymphadenectomy in terms of prolonged survival. Moreover, overtreatment of patients with localized disease carries unnecessary risk of complications...
May 15, 2018: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/29763716/prognostic-factors-in-primary-anorectal-melanoma-a-clinicopathologic-study-of-60-cases-in-china
#5
Min Ren, Yawen Lu, Jiaojie Lv, Xuxia Shen, Jincheng Kong, Bo Dai, Yunyi Kong
To investigate the clinicopathologic features and prognostic factors of primary anorectal melanoma, we described the clinical presentations, histopathology, and prognosis of 60 cases in China. Patients' age ranged from 17 to 86years with a female-to-male ratio of 2.33:1. The prevalent anatomic site of tumor was anorectum. The mean tumor thickness was 11.5mm and mean tumor size was 2.9cm. Abdominoperineal resection was performed on 38 (63.3%) patients, while wide local excision on 22 (36.7%) patients. Thirty-three (55...
May 12, 2018: Human Pathology
https://www.readbyqxmd.com/read/29760085/mda-9-syntenin-regulates-protective-autophagy-in-anoikis-resistant-glioma-stem-cells
#6
Sarmistha Talukdar, Anjan K Pradhan, Praveen Bhoopathi, Xue-Ning Shen, Laura A August, Jolene J Windle, Devanand Sarkar, Frank B Furnari, Webster K Cavenee, Swadesh K Das, Luni Emdad, Paul B Fisher
Glioma stem cells (GSCs) comprise a small subpopulation of glioblastoma multiforme cells that contribute to therapy resistance, poor prognosis, and tumor recurrence. Protective autophagy promotes resistance of GSCs to anoikis, a form of programmed cell death occurring when anchorage-dependent cells detach from the extracellular matrix. In nonadherent conditions, GSCs display protective autophagy and anoikis-resistance, which correlates with expression of melanoma differentiation associated gene-9/Syntenin (MDA-9) (syndecan binding protein; SDCBP)...
May 14, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29755733/recent-advancements-in-the-management-of-retinoblastoma-and-uveal-melanoma
#7
REVIEW
Amy C Schefler, Ryan S Kim
Retinoblastoma and uveal melanoma are the most common intraocular malignancies observed in pediatric and adult populations, respectively. For retinoblastoma, intra-arterial chemotherapy has dramatically improved treatment outcomes and eye salvage rates compared with traditional salvage rates of systemic chemotherapy and external beam radiation therapy. Intravitreal injections of chemotherapy have also demonstrated excellent efficacy for vitreous seeds. Uveal melanoma, on the other hand, is treated predominantly with iodine-125 plaque brachytherapy or with proton beam therapy...
2018: F1000Research
https://www.readbyqxmd.com/read/29750750/malignant-melanoma-clinically-mimicking-pyogenic-granuloma-comparison-of-clinical-evaluation-and-histopathology
#8
Michael Moshe, Assi Levi, Dean Ad-El, Dan Ben-Amitai, Daniel Mimouni, Elena Didkovsky, Meora Feinmesser, Moshe Lapidoth
Amelanotic melanomas (AMMs) account for a small proportion of all melanomas. They pose a risk of delayed diagnosis and, consequently, poor prognosis. AMMs may atypically present as a pyogenic granuloma-like lesion. This study sought to investigate the prevalence and clinical and histological features of AMM masquerading as pyogenic granuloma. The database of a tertiary medical center was screened for all patients pathologically diagnosed with melanoma in 2005-2016. Those with a suspected primary (i.e. pre-excision) clinical diagnosis of pyogenic granuloma were identified, and their demographic, clinical, histologic, and outcome data were collected from the medical files...
May 10, 2018: Melanoma Research
https://www.readbyqxmd.com/read/29750749/vemurafenib-in-braf-mutant-metastatic-melanoma-patients-in-real-world-clinical-practice-prognostic-factors-associated-with-clinical-outcomes
#9
Maartje G Schouwenburg, Anouk Jochems, Brenda Leeneman, Margreet G Franken, Alfons J M van den Eertwegh, John B A G Haanen, Michiel C T van Zeijl, Maureen J Aarts, Alexander C J van Akkooi, Franchette W P J van den Berkmortel, Willeke A M Blokx, Jan Willem B de Groot, Geke A P Hospers, Ellen Kapiteijn, Rutger H Koornstra, Wim H Kruit, Marieke W J Louwman, Djura Piersma, Rozemarijn S van Rijn, Karijn P M Suijkerbuijk, Albert J Ten Tije, Gerard Vreugdenhil, Michel W J M Wouters, Jacobus J M van der Hoeven
The aim of this population-based study was to identify the factors associated with clinical outcomes in vemurafenib-treated patients and to evaluate outcomes across subgroups of patients with different risk profiles. Data were retrieved from the Dutch Melanoma Treatment Registry. Time to next treatment (TTNT) and overall survival (OS) of all metastatic melanoma patients who received vemurafenib between 2012 and 2015 were assessed using Kaplan-Meier estimates. A risk score was developed on the basis of all prognostic factors associated with TTNT and OS derived from multivariable Cox regression analyses...
May 10, 2018: Melanoma Research
https://www.readbyqxmd.com/read/29749485/gas%C3%A2-filled-ultrasound-microbubbles-enhance-the-immunoactivity-of-the-hsp70%C3%A2-magea1-fusion-protein-against-magea1%C3%A2-expressing-tumours
#10
Xing Gao, Yang Nan, Yuan Yuan, Xue Gong, Yuanyuan Sun, Huihui Zhou, Yujin Zong, Lijun Zhang, Ming Yu
Advanced malignant melanoma is characterized by rapid development, poor prognosis and insensitivity to chemoradiotherapy. Immunotherapy has become one of the primary clinical treatments for malignant melanomas. In recent decades, identifying specific tumour antigens and the enhanced immunoactivity of tumour vaccines has become critical for engineering successful tumour vaccines. As a widely used vaccine carrier, heat shock protein 70 (HSP70) clearly increases the immunogenicity of tumour antigens, such as melanoma‑associated antigen A1 (MAGEA1)...
May 9, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29747595/the-search-for-a-melanoma-tailored-chemotherapy-in-the-new-era-of-personalized-therapy-a-phase-ii-study-of-chemo-modulating-temozolomide-followed-by-fotemustine-and-a-cooperative-study-of-goim-gruppo-oncologico-italia-meridionale
#11
Michele Guida, Stefania Tommasi, Sabino Strippoli, Maria Iole Natalicchio, Simona De Summa, Rosamaria Pinto, Antonio Cramarossa, Anna Albano, Salvatore Pisconti, Michele Aieta, Ruggiero Ridolfi, Amalia Azzariti, Gabriella Guida, Vito Lorusso, Giusepe Colucci
BACKGROUND: It is frequently asked whether chemotherapy can still play a role in metastatic melanoma considering the effectiveness of the available drugs today, including antiCTLA4/antiPD1 immunotherapy and antiBRAF/antiMEK inhibitors. However, only approximately half of patients respond to these drugs, and the majority progress after 6-11 months. Therefore, a need for other therapeutic options is still very much apparent. We report the first large trial of a sequential full dose of fotemustine (FM) preceded by a low dose of temozolomide (TMZ) as a chemo-modulator in order to inactivate the DNA repair action of O(6)-methylguanine DNA-methyltransferase (MGMT)...
May 10, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29738114/oncogenic-signaling-in-uveal-melanoma
#12
REVIEW
John J Park, Russell J Diefenbach, Anthony M Joshua, Richard F Kefford, Matteo S Carlino, Helen Rizos
Uveal melanoma is the most common primary cancer of the eye, and despite rapidly emerging insights into the molecular profile of this disease, prognosis of patients with metastatic uveal melanoma remains poor with mortality rates unchanged in over 35 years. Early genetic events activate G-protein coupled receptor signaling in nearly all uveal tumors via mutually exclusive mutations in the GNAQ, GNA11, CYSLTR2 or PLCB4 genes. A multitude of signaling cascades downstream of G-protein activation, including protein kinase C and mitogen activated protein kinase activity are actionable and many ongoing clinical trials are targeting these pathways...
May 8, 2018: Pigment Cell & Melanoma Research
https://www.readbyqxmd.com/read/29732441/quantitative-oct-angiography-evaluation-of-peripapillary-retinal-circulation-after-plaque-brachytherapy
#13
Alison H Skalet, Liang Liu, Christina Binder, Audra K Miller, Jie Wang, David J Wilson, Richard Crilly, Charles R Thomas, Arthur Y Hung, David Huang, Yali Jia
Objective: To study peripapillary retinal capillary circulation in eyes treated with I-125 plaque brachytherapy for uveal melanoma using optical coherence tomography angiography (OCTA). Design: Cross-sectional study of 10 subjects imaged with OCTA prior to uveal melanoma treatment and 15 subjects imaged after development of radiation retinopathy and/or optic neuropathy. Participants: Following IRB approval, subjects were enrolled from an academic ocular oncology clinical practice...
March 2018: Ophthalmology retina
https://www.readbyqxmd.com/read/29731939/innovative-one-step-melanoma-surgical-approach-osms-not-a-myth-it-s-a-reality-case-related-analysis-of-a-patient-with-a-perfect-clinical-outcome-reported-from-the-bulgarian-society-for-dermatologic-surgery-bulsds
#14
Georgi Tchernev, Svetoslav Chernin, Ilia Lozev, Torello Lotti, Konstantin Stavrov, Ivanka Temelkova, Ivan Pidakev
BACKGROUND: With the newly described one step melanoma surgical approach, some patient groups could be successfully treated within one surgical session. Depending on the tumour thickness (measured preoperatively) at a later stage (also depending on the ultrasound findings of the locoregional lymph nodes) the respective surgical intervention is planned with the respective field of surgical safety (one-stage melanoma surgery with or without removal of lymph nodes). The innovations could make to some extent some of the already existing algorithms more difficult (due to the introduction of a high-frequency ultrasound to determine the tumor thickness preoperatively as an absolute prerequisite for dermosurgical centres), but it would also lead with absolute certainty to better or least optimal results regarding the prognosis, the side effects and the financial factor also...
April 15, 2018: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/29728261/melanoma-of-the-lower-genital-tract-prognostic-factors-and-treatment-modalities
#15
REVIEW
Angiolo Gadducci, Silvestro Carinelli, Maria Elena Guerrieri, Giovanni Damiano Aletti
Primary melanomas originating from the gynecological tract are rare and aggressive cancers. The vulva is the most frequent site (70%), followed by vagina and more rarely by cervix. The clinical outcome of patients with female genital tract melanoma is very poor, with a 5-year overall survival (OS) of 37-50% for vulvar, 13-32% for vaginal, and approximately 10% for cervical melanoma. In this systematic review, we analyzed the pathogenesis and the different factors influencing the prognosis of melanomas of the lower genital tract, with particular emphasis on biologic variables that may influence new therapeutic approaches...
May 1, 2018: Gynecologic Oncology
https://www.readbyqxmd.com/read/29725478/distinct-prognostic-value-of-mrna-expression-of-guanylate-binding-protein-genes-in-skin-cutaneous-melanoma
#16
Qiaoqi Wang, Xiangkun Wang, Qian Liang, Shijun Wang, Liao Xiwen, Fuqiang Pan, Hongyang Chen, Dong Li
The purpose of the present study was to assess if guanylate-binding protein (GBP) mRNAs could be prognostic biomarkers for patients with skin cutaneous melanoma (SKCM). The prognostic value of GBP mRNA expression in patients with SKCM was investigated by analyzing gene expression data in 459 SKCM patients. The data were extracted from the OncoLnc database of The Cancer Genome Atlas. A high expression of GBP1, GBP2, GBP3, GBP4 and GBP5 were correlated with favorable overall survival (OS) in the SKCM patients followed for over 30 years...
May 2018: Oncology Letters
https://www.readbyqxmd.com/read/29725430/targeted-silencing-of-the-adp-ribosyltransferase-3-gene-inhibits-the-migration-ability-of-melanoma-cells
#17
Jie He, Yongyun Li, Ying Wang, He Zhang, Shengfang Ge, Xianqun Fan
Melanoma is the most common primary intraocular malignancy and metastasis of melanoma to other organs often results in a poor prognosis. ADP-ribosyltransferase 3 (ART3) is involved in cell division and DNA repair. However, its biological function in melanoma remains unclear. In the present study, it was identified that ART3 is highly expressed in melanoma cells and melanoma tissues compared with the normal RPE cell line, and adjacent normal tissue, respectively. Small interfering RNA and short hairpin RNA were used to silence ART3 gene expression, and the results revealed that the silencing of ART3 inhibits the migratory ability of melanoma cells...
May 2018: Oncology Letters
https://www.readbyqxmd.com/read/29723382/what-does-the-4th-edition-of-the-world-health-organization-classification-of-head-and-neck-tumors-2017-bring-new-about-mucosal-melanomas
#18
José Cândido Caldeira Xavier Júnior, Juliana Polizel Ocanha-Xavier
The recently published 4th Edition of the World Health Organization Classification of Head and Neck Tumors addresses the most relevant and updated aspects of tumor biology, including clinical presentation, histopathology, immunohistochemistry, and prognosis of head and neck tumors. The objective of the present study is to compare these updates to the 3rd edition of that book with regard to mucosal melanomas and to highlight the potential factors that differ those tumors from cutaneous melanomas. We observed progress in the understanding of oral and sinonasal mucosal melanomas, which also present themselves, in the molecular scope, differently form cutaneous melanomas...
March 2018: Anais Brasileiros de Dermatologia
https://www.readbyqxmd.com/read/29722524/a-targeted-proteomic-approach-for-heat-shock-proteins-reveals-dnajb4-as-a-suppressor-for-melanoma-metastasis
#19
Weili Miao, Lin Li, Yinsheng Wang
Heat shock proteins are molecular chaperones that are involved in protein folding. In this study, we developed a targeted proteomic method, relying on LC-MS/MS in the parallel-reaction monitoring (PRM) mode, for assessing quantitatively the human heat shock proteome. The method facilitated the coverage of approximately 70% of the human heat shock proteome, and displayed much better throughput and sensitivity than the shotgun proteomic approach. We also applied the PRM method for assessing the differential expression of heat shock proteins in three matched primary/metastatic pairs of melanoma cell lines...
May 3, 2018: Analytical Chemistry
https://www.readbyqxmd.com/read/29722002/genetics-of-metastasis-melanoma-and-other-cancers
#20
Noel Turner, Olivia Ware, Marcus Bosenberg
Melanoma is a malignant neoplasm of melanocytes that accounts for the majority of skin cancer deaths despite comprising less than 5% of all cutaneous malignancies. Its incidence has increased faster than that of any other cancer over the past half-century and the annual costs of treatment in the United States alone have risen rapidly. Although the majority of primary melanomas are cured with local excision, metastatic melanoma historically carries a grim prognosis, with a median survival of 9 months and a long-term survival rate of 10%...
May 2, 2018: Clinical & Experimental Metastasis
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