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(Cutaneous metastasis) melanoma

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https://www.readbyqxmd.com/read/28803992/p-rex1-amplification-promotes-progression-of-cutaneous-melanoma-via-the-pak1-p38-mmp-2-pathway
#1
Jinhua Wang, Hajime Hirose, Guanhua Du, Kelly Chong, Eiji Kiyohara, Isaac P Witz, Dave S B Hoon
P-REX1 (PIP3-dependent Rac exchange factor-1) is a guanine nucleotide exchange factor that activates Rac by catalyzing exchange of GDP for GTP bound to Rac. Aberrant up-regulation of P-REX1 expression has a role in metastasis however, copy number (CN) and function of P-REX1 in cutaneous melanoma are unclear. To explore the role of P-REX1 in melanoma, SNP 6.0 and Exon 1.0 ST microarrays were assessed. There was a higher CN (2.82-fold change) of P-REX1 in melanoma cells than in melanocytes, and P-REX1 expression was significantly correlated with P-REX1 CN...
August 10, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28800027/economic-burden-of-advanced-melanoma-in-france-germany-and-the-uk-a-retrospective-observational-study-melanoma-burden-of-illness-study
#2
Florent Grange, Peter Mohr, Mark Harries, Rainer Ehness, Laure Benjamin, Obukohwo Siakpere, Janina Barth, Ceilidh Stapelkamp, Sylvie Pfersch, Lori D McLeod, James A Kaye, Sorrel Wolowacz, Ilias Kontoudis
The aim of this study was to estimate the cost-of-illness associated with completely resected stage IIIB/IIIC melanoma with macroscopic lymph node involvement, overall and by disease phase, in France, Germany and the UK. This retrospective observational study included patients aged older than or equal to 18 years first diagnosed with stage IIIB/IIIC cutaneous melanoma between 1 January 2009 and 31 December 2011. Data were obtained from medical records and a patient survey. Direct costs, indirect costs and patient out-of-pocket expenses were estimated in euros (&OV0556;) (and British pounds, £) by collecting resource use and multiplying by country-specific unit costs...
August 10, 2017: Melanoma Research
https://www.readbyqxmd.com/read/28783927/a-case-of-primary-small-bowel-melanoma-diagnosed-by-single-balloon-enteroscopy
#3
Jun Young Shin, In Suh Park, Byoung Wook Bang, Hyung Kil Kim, Yong Woon Shin, Kye Sook Kwon
Although metastasis from cutaneous malignant melanoma to the small intestine is not uncommon, primary small bowel melanoma (SBM) is extremely rare. This case report describes a rare case of primary SBM, diagnosed by single-balloon enteroscopy. A 74-year-old man presented with recurrent melena. Upper endoscopy and colonoscopy were unremarkable. Abdominal computed tomography (CT) revealed an ileal mass with ileo-ileal intussusception. Subsequent single-balloon enteroscopy identified an ileal tumor, which was histologically diagnosed as melanoma...
July 2017: Clinical Endoscopy
https://www.readbyqxmd.com/read/28763337/folliculotropic-metastatic-melanoma-a-case-report-and-review-of-the-literature
#4
Elizabeth L McKinnon, Kelly L West, Russell A Ball, Nathan Wright, Raymond L Barnhill
Folliculotropic metastasis of cutaneous melanoma is rare, with only 5 published case reports in the English language literature since it was first described in 2009. We report a 41-year-old man with a primary cutaneous melanoma of the right upper preauricular region with metastatic spread to the parotid gland and pulmonary lymph nodes. Excision of the primary lesion was performed and immunotherapy was initiated. Sixteen months later, the patient presented with 2 new lesions of the left forehead and left neck...
September 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28756123/lymphatic-vessel-density-and-vegf-c-expression-as-independent-predictors-of%C3%A2-melanoma-metastases
#5
Zorica Špirić, Živka Eri, Mirela Erić
INTRODUCTION: In many patients, the clinical behaviour of cutaneous melanoma is very difficult to predict by traditional histologic and clinical parameters. This study aimed to examine the role of quantitative parameters of tumour lymphangiogenesis and vascular endothelial growth factor (VEGF)-C in predicting metastatic risk in patients with cutaneous melanoma. METHODS: One hundred melanoma specimens were stained with lymphatic-specific antibody D2-40 and with anti-VEGF-C antibody...
July 8, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28743863/transcriptome-analysis-of-canine-cutaneous-melanoma-and-melanocytoma-reveals-a-modulation-of-genes-regulating-extracellular-matrix-metabolism-and-cell-cycle
#6
Chiara Brachelente, Katia Cappelli, Stefano Capomaccio, Ilaria Porcellato, Serenella Silvestri, Laura Bongiovanni, Raffaella De Maria, Andrea Verini Supplizi, Luca Mechelli, Monica Sforna
Interactions between tumor cells and tumor microenvironment are considered critical in carcinogenesis, tumor invasion and metastasis. To examine transcriptome changes and to explore the relationship with tumor microenvironment in canine cutaneous melanocytoma and melanoma, we extracted RNA from formalin-fixed, paraffin-embedded (FFPE) specimens and analyzed them by means of RNA-seq for transcriptional analysis. Melanocytoma and melanoma samples were compared to detect differential gene expressions and significant enriched pathways were explored to reveal functional relations between differentially expressed genes...
July 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28740547/down-regulated-mir-23a-contributes-to-the-metastasis-of-cutaneous-melanoma-by-promoting-autophagy
#7
Weinan Guo, Huina Wang, Yuqi Yang, Sen Guo, Weigang Zhang, Yu Liu, Xiuli Yi, Jingjing Ma, Tao Zhao, Lin Liu, Zhe Jian, Ling Liu, Gang Wang, Tianwen Gao, Qiong Shi, Chunying Li
Melanoma is among the most aggressive tumors, and the occurrence of metastasis leads to a precipitous drop in the patients' survival. Therefore, identification of metastasis-associated biomarkers and therapeutic targets will contribute a lot to improving melanoma theranostics. Recently, microRNAs (miRNAs) have been implicated in modulating cancer invasion and metastasis, and are proved as potential non-invasive biomarkers in sera for various tumors. Here, we reported miR-23a as a novel metastasis-associated miRNA that played a remarkable role in modulating melanoma invasive and metastatic capacity and was of great value in predicting melanoma metastasis and prognosis...
2017: Theranostics
https://www.readbyqxmd.com/read/28739713/feasibility-of-postoperative-radiotherapy-using-conventional-fractionation-for-lymph-node-metastasis-from-cutaneous-melanoma
#8
Yeon Joo Kim, Si Yeol Song, Wanlim Kim, Seong-Yun Jeong, Wonsik Choi, Hyoung Uk Je, Jong-Seok Lee, Eun Kyung Choi
AIM: In the present study we assessed if postoperative radiotherapy (PORT) using conventional fractionation confers a benefit in cutaneous melanoma patients with lymph node (LN) metastasis. PATIENTS AND METHODS: Sixty-two patients with axillary or inguinal LN metastasis were retrospectively reviewed. Twenty-eight patients received PORT. The median RT dose was 50 Gy in 25 fractions. The high-risk group was defined by the presence of any of the following: ≥3 LNs, size ≥3 cm, extranodal extension...
August 2017: Anticancer Research
https://www.readbyqxmd.com/read/28736231/serial-or-parallel-metastasis-of-cutaneous-melanoma-a-study-of-the-german-central-malignant-melanoma-registry
#9
Maximilian Gassenmaier, Thomas Kurt Eigentler, Ulrike Keim, Matthias Goebeler, Eckhard Fiedler, Gerold Schuler, Ulrike Leiter, Benjamin Weide, Eva-Maria Grischke, Peter Martus, Claus Garbe
For more than a century the Halstedian hypothesis of contiguous metastasis from the primary tumor through the lymphatics to distant sites shaped the lymph node surgery for melanoma. We challenge this dogma of serial metastatic dissemination. A single-center series of 2299 patients with cutaneous metastatic melanoma was investigated to analyze overall survival (OS) and distant metastasis-free survival (DMFS) of stage IV patients with or without primary lymphatic metastasis. Results were then compared with those of 2134 patients from three independent centers of the German Central Malignant Melanoma Registry...
July 20, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28735667/immunohistochemical-expression-of-mcam-cd146-in-canine-melanoma
#10
S Abou Asa
MCAM/CD146 (melanoma cell adhesion molecule/CD146) is a transmembrane immunoglobulin superfamily cell adhesion molecule involved in transendothelial migration and signal transduction. It is expressed in melanoma, squamous cell carcinoma, prostatic, ovarian, cervical and endometrial cancers and promotes tumour growth, angiogenesis and metastasis. Melanoma is the most common malignant oral tumour of dogs and also arises in the skin, nail bed and footpad. The aim of this study was to investigate the immunohistochemical expression of MCAM/CD146 in 51 canine melanomas, including oral, cutaneous and ocular tumours...
July 2017: Journal of Comparative Pathology
https://www.readbyqxmd.com/read/28724272/patients-characteristics-histopathological-findings-and-tumor-stage-in-different-types-of-malignant-melanoma-a-retrospective-multicenter-study
#11
Ali-Mohammad Farahmand, Amir-Hoshang Ehsani, Mojtaba Mirzaei, Maryam Mohsenian, Alireza Ghanadan
Cutaneous malignant melanoma (CMM) is currently the most fatal of skin cancers accounting for 50000 deaths annually. Five distinct melanomas are described histopathologically: superficial spreading, lentigo maligna, nodular, acral lentiginous and mucosal melanoma. The aim of this study was to investigate the characteristics of patients with various types of malignant melanoma and evaluate histopathological findings. In this retrospective study, we obtained our data from the records of 111 patients with melanoma...
May 2017: Acta Medica Iranica
https://www.readbyqxmd.com/read/28718222/when-is-a-sentinel-node-biopsy-indicated-for-patients-with-primary-melanoma-an-update-of-the-australian-guidelines-for-the-management-of-cutaneous-melanoma
#12
REVIEW
David E Gyorki, Andrew Barbour, Mark Hanikeri, Victoria Mar, Shahneen Sandhu, John F Thompson
A sentinel lymph node biopsy is a surgical staging procedure performed for patients with primary cutaneous melanoma who are clinically lymph-node negative to determine whether there is low volume nodal metastasis in the draining lymph node field. A systematic review was recently performed to update the Australian clinical practice guidelines for the diagnosis and management of melanoma, addressing the question, 'When is a sentinel lymph node biopsy indicated?' This article discusses the findings of the systematic review and the evidence base for the updated guidelines...
July 17, 2017: Australasian Journal of Dermatology
https://www.readbyqxmd.com/read/28709916/lymphatic-invasion-and-the-shields-index-in-predicting-melanoma-metastases
#13
Zorica Špirić, Mirela Erić, Živka Eri
INTRODUCTION: Findings of the prognostic significance of lymphatic invasion are contradictory. To determine an as efficient cutaneous melanoma metastasis predictor as possible, Shields et al. created a new prognostic index. This study aimed to examine whether the lymphatic invasion analysis and the Shields index calculation can be used in predicting lymph node status in patients with cutaneous melanoma. METHODS: Lymphatic invasion of 100 melanoma specimens was detected by dual immunohistochemistry staining for the lymphatic endothelial marker D2-40 and melanoma cell S-100 protein...
June 13, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28708595/angptl4-promotes-the-progression-of-cutaneous-melanoma-to-brain-metastasis
#14
Sivan Izraely, Shlomit Ben-Menachem, Orit Sagi-Assif, Tsipi Meshel, Diego M Marzese, Shuichi Ohe, Inna Zubrilov, Metsada Pasmanik-Chor, Dave S B Hoon, Isaac P Witz
In an ongoing effort to identify molecular determinants regulating melanoma brain metastasis, we previously identified Angiopoietin-like 4 (ANGPTL4) as a component of the molecular signature of such metastases.The aim of this study was to determine the functional significance of ANGPTL4 in the shaping of melanoma malignancy phenotype, especially in the establishment of brain metastasis.We confirmed that ANGPTL4 expression is significantly higher in cells metastasizing to the brain than in cells from the cutaneous (local) tumor from the same melanoma in a nude mouse xenograft model, and also in paired clinical specimens of melanoma metastases than in primary melanomas from the same patients...
July 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28702965/hard-to-face-cutaneous-malignant-melanoma
#15
M Vaccaro, M Lentini, J Lotti, M Fioranelli, M G Roccia, T Lotti, C Guarneri
An 88-year-old Caucasian man recently sought medical attention due to recrudescence of skin disease in the area of previously excised nodule (in 2002) on the nose dorsum. The original lesion was clinically considered as a pigmented basal cell carcinoma, after which histological examination revealed a superficial spreading melanoma in vertical growth face (Clark level IV; Breslow thickness 2.1 mm) arising from a pre-existing nevus. The adjacent skin also showed significant actinic damage both in the epidermis and in the dermis...
July 13, 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28699537/recent-advances-in-polymeric-nanosystems-for-treating-cutaneous-melanoma-and-its-metastasis
#16
Yi-Ping Chou, Yin-Ku Lin, Chun-Han Chen, Jia-You Fang
Melanoma shows a high possibility of mortality after it metastasizes because of its aggressive nature. Although there are several options for anti-melanoma therapy, this skin malignancy is resistant to some therapies. Chemotherapy, biochemotherapy, immunotherapy, and adoptive cell therapy have failed to exhibit a significant amelioration in overall survival. Nanomedicine provides an opportunity to improve the efficiency of the anti-melanoma regimen. Nanoparticles for treating melanoma provide the advantages over conventional therapies such as drug solubility increment, drug stability enhancement, epithelium permeability and bioavailability amelioration, half-life prolonging, tumor targeting, and side effect minimization...
July 10, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28699042/is-the-non-sentinel-lymph-node-compartment-the-next-site-for-melanoma-progression-from-the-sentinel-lymph-node-compartment-in-the-regional-nodal-basin
#17
Andrei Rios-Cantu, Ying Lu, Victor Melendez-Elizondo, Michael Chen, Alejandra Gutierrez-Range, Niloofar Fadaki, Suresh Thummala, Carla West-Coffee, James Cleaver, Mohammed Kashani-Sabet, Stanley P L Leong
Melanoma patients with additional positive lymph nodes in the completion lymph node dissection (CLND) following a positive sentinel lymph node (SLN) biopsy would have a poorer prognosis than patients with no additional positive lymph nodes. We hypothesize that the progression of disease from the SLN to the non-SLN compartment is orderly and is associated with the worsening of the disease status. Thus, the SLN and non-SLN compartments are biologically different in that cancer cells, in general, arrive in the SLN compartment before spreading to the non-SLN compartment...
July 11, 2017: Clinical & Experimental Metastasis
https://www.readbyqxmd.com/read/28673886/newly-diagnosed-sellar-tumors-in-cancer-patients-a-diagnostic-challenge-and-management-dilemma
#18
Carlos R Goulart, Smita Upadhyay, Leo F S Ditzel Filho, Andre Beer-Furlan, Ricardo L Carrau, Luciano M Prevedello, Daniel M Prevedello
OBJECTIVE: The use of PET CT for staging in cancer patients and the widespread use of MRI led to an increased incidence of incidental sellar mass detection. The imaging findings can be suggestive of a benign pituitary tumor but metastasis can never be completely ruled out with non-invasive work-up. Appropriate diagnosis of these sellar masses is critical as the treatment paradigm might change in the presence of a pituitary metastasis. Moreover, definitive tissue diagnosis might prevent unnecessary radiotherapy to the skull base or even the need for systemic treatment when benign pituitary disease is confirmed...
June 30, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28658220/whole-body-imaging-of-lymphovascular-niches-identifies-pre-metastatic-roles-of-midkine
#19
David Olmeda, Daniela Cerezo-Wallis, Erica Riveiro-Falkenbach, Paula C Pennacchi, Marta Contreras-Alcalde, Nuria Ibarz, Metehan Cifdaloz, Xavier Catena, Tonantzin G Calvo, Estela Cañón, Direna Alonso-Curbelo, Javier Suarez, Lisa Osterloh, Osvaldo Graña, Francisca Mulero, Diego Megías, Marta Cañamero, Jorge L Martínez-Torrecuadrada, Chandrani Mondal, Julie Di Martino, David Lora, Inés Martinez-Corral, J Javier Bravo-Cordero, Javier Muñoz, Susana Puig, Pablo Ortiz-Romero, José L Rodriguez-Peralto, Sagrario Ortega, María S Soengas
Cutaneous melanoma is a type of cancer with an inherent potential for lymph node colonization, which is generally preceded by neolymphangiogenesis. However, sentinel lymph node removal does not necessarily extend the overall survival of patients with melanoma. Moreover, lymphatic vessels collapse and become dysfunctional as melanomas progress. Therefore, it is unclear whether (and how) lymphangiogenesis contributes to visceral metastasis. Soluble and vesicle-associated proteins secreted by tumours and/or their stroma have been proposed to condition pre-metastatic sites in patients with melanoma...
June 28, 2017: Nature
https://www.readbyqxmd.com/read/28635133/critical-role-of-glioma-associated-oncogene-homolog-1-in-maintaining-invasive-and-mesenchymal-like-properties-of-melanoma-cells
#20
I Ketut Gunarta, Rong Li, Ryota Nakazato, Ryusuke Suzuki, Jambaldorj Boldbaatar, Takeshi Suzuki, Katsuji Yoshioka
Cutaneous melanoma is the most aggressive form of skin cancer. This aggressiveness appears to be due to the cancer cells' ability to reversibly switch between phenotypes with non-invasive and invasive potential, and microphthalmia-associated transcription factor (MITF) is known to play a central role in this process. The transcription factor glioma-associated oncogene homolog 1 (GLI1) is a component of the canonical and noncanonical sonic hedgehog pathways. Although GLI1 has been suggested to be involved in melanoma progression, its precise role and the mechanism underlying invasion remain unclear...
August 2017: Cancer Science
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