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Melanoma in situ

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https://www.readbyqxmd.com/read/28218741/identification-of-micrornas-associated-with-invasive-and-aggressive-phenotype-in-cutaneous-melanoma-by-next-generation-sequencing
#1
Sankhiros Babapoor, Rong Wu, James Kozubek, Donna Auidi, Jane M Grant-Kels, Soheil S Dadras
A comprehensive repertoire of human microRNAs (miRNAs) that could be involved in early melanoma invasion into the dermis remains unknown. To this end, we sequenced small RNAs (18-30 nucleotides) isolated from an annotated series of invasive melanomas (average invasive depth, 2.0 mm), common melanocytic nevi, and matched normal skin (n=28). Our previously established bioinformatics pipeline identified 765 distinct mature known miRNAs and defined a set of top 40 list that clearly segregated melanomas into thin (0...
February 20, 2017: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/28218707/fkbp51-immunohistochemical-expression-a-new-prognostic-biomarker-for-oscc
#2
Daniela Russo, Francesco Merolla, Massimo Mascolo, Gennaro Ilardi, Simona Romano, Silvia Varricchio, Virginia Napolitano, Angela Celetti, Loredana Postiglione, Pier Paolo Di Lorenzo, Luigi Califano, Giovanni Orabona Dell'Aversana, Fabio Astarita, Maria Fiammetta Romano, Stefania Staibano
Up-to-date, several molecular markers of prognosis have been studied in Oral Squamous Cell Carcinoma (OSCC), but none entered in the clinical setting. Therapy of OSCC tumors mainly relies on surgery, radiotherapy and partially on chemotherapy; there is an urgent need for biomarkers able to better stratify OSCC patients' risk to address targeted therapeutic strategies. The role of immune response in the pathogenesis and biological behavior of OSCC has been investigated by several authors, and promising results have been obtained with immune checkpoint inhibitors...
February 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28218344/familial-melanoma-associated-with-li-fraumeni-syndrome-and-atypical-mole-syndrome-total-body-digital-photography-dermoscopy-and-confocal-microscopy
#3
Priscila Giavedoni, Marnie Ririe, Cristina Carrera, Susana Puig, Josep Malvehy
Li-Fraumeni syndrome (LFS) is a rare autosomal dominant disorder caused by a mutation in the p53 gene. Melanoma is considered to be a rare, controversial component of LFS. The aim of this study is to describe the utility of systematic screening for melanoma in patients with LFS and atypical mole syndrome. Two 28-year-old identical twin sisters with LFS and atypical moles were monitored by physical examination, total-body digital photography and dermoscopy be-tween 2006 and 2014. A total of 117, predominantly dark-brown, reticular naevi were identified on case 1 and 105 on case 2...
February 20, 2017: Acta Dermato-venereologica
https://www.readbyqxmd.com/read/28188308/tetraspanin-8-is-a-novel-regulator-of-ilk-driven-%C3%AE-1-integrin-adhesion-and-signaling-in-invasive-melanoma-cells
#4
Manale El Kharbili, Clément Robert, Tiffany Witkowski, Emmanuelle Danty-Berger, Laetitia Barbollat-Boutrand, Ingrid Masse, Nicolas Gadot, Arnaud de la Fouchardière, Paul C McDonald, Shoukat Dedhar, François Le Naour, Françoise Degoul, Odile Berthier-Vergnes
Melanoma is well known for its propensity for lethal metastasis and resistance to most current therapies. Tumor progression and drug resistance depend to a large extent on the interplay between tumor cells and the surrounding matrix. We previously identified Tetraspanin 8 (Tspan8) as a critical mediator of melanoma invasion, whose expression is absent in healthy skin. The present study investigated whether Tspan8 may influence cell-matrix anchorage and regulate downstream molecular pathways leading to an aggressive behavior...
February 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28156621/comparison-of-two-indwelling-pleural-catheter-types-for-malignant-pleural-effusions
#5
Sushilkumar Satish Gupta, Abhinav Binod Chandra
: 205 Background: Indwelling pleural catheter (IPC) placement is an alternative to chemical pleurodesis for malignant pleural effusion (MPE), a complication of advanced cancer. In 1997 an IPC was approved which uses vacuum bottles (VB) for drainage (PleurX, Becton, Dickinson and Company, Franklin Lakes, NJ), and later another IPC system, which employs a manually operated vacuum pump (VP) for drainage (Aspira, Bard Access Systems, Salt Lake City, UT). Most studies comparing IPC versus chemical pleurodesis used the VB IPC...
October 9, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28150389/diagnostic-agreement-and-interobserver-concordance-with-teledermoscopy-referrals
#6
J Dahlén Gyllencreutz, J Paoli, M Bjellerup, Z Bucharbajeva, H Gonzalez, K Nielsen, C Sandberg, I Synnerstad, K Terstappen, A-M Wennberg Larkö
BACKGROUND: Malignant melanoma and non-melanoma skin cancers are among the fastest increasing malignancies in many countries. With the help of new tools, such as teledermoscopy referrals between Primary Health Care and Dermatology clinics, the management of these patients could be made more efficient. OBJECTIVE: To evaluate the diagnostic agreement and interobserver concordance achieved when assessing referrals sent through a mobile teledermoscopic referral system as compared to referrals sent via the current paper-based system without images...
February 1, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28131419/-predictive-biomarkers-of-efficacy-of-checkpoint-blockade-inhibitors-in-cancer-treatment
#7
Michaël Duruisseaux, Cécile Lize-Dufranc, Céline Badoual, Frédéric Bibeau
The remarkable efficacy of PD-1/PD-L1 and CTLA4 immune checkpoint inhibitors has led to numerous approvals in melanoma, non-small cell lung cancer, kidney cancer and several other cancers. Nevertheless, a response is observed in a variable proportion of patients, emphasizing the need for predictive biomarkers of efficacy of immune checkpoint inhibitors effectiveness. Several predictive biomarkers of efficacy are of interest: companion tests such PD-L1 immunohistochemistry, the mutational load, the immune status of the tumor and its molecular profile...
February 2017: Annales de Pathologie
https://www.readbyqxmd.com/read/28128089/thin-melanoma-a-generic-term-including-four-histological-subtypes-of-cutaneous-melanoma
#8
Luca Roncati, Teresa Pusiol, Francesco Piscioli
Today, the scientific community is focusing on the prognostic significance of different histological subtypes of thin melanoma (1). The current staging system for melanoma of the American Joint Committee on Cancer (AJCC) uses Breslow thickness as the primary attribute: melanomas with up to 1 mm thickness is defined as thin, because they present a good prognosis after surgical excision, with a 10-year survival rate of 85-90% in case of a tumor-free margin ≥1 cm (2). There is a significant interaction between mitotic rate and Breslow depth, so the predictive value of the mitotic rate on sentinel lymph node (SLN) positivity can be dependent on Breslow thickness (3)...
December 2016: Acta Dermatovenerologica Croatica: ADC
https://www.readbyqxmd.com/read/28114438/contemporary-management-of-early-stage-melanoma-a-systematic-review
#9
Andrew J Rosko, Kyle K Vankoevering, Scott A McLean, Timothy M Johnson, Jeffrey S Moyer
Importance: The incidence of melanoma is increasing, with 76 380 new cases of invasive melanoma and 68 480 new cases of melanoma in situ expected in 2016. Objective: To review the contemporary management of early-stage melanoma. Evidence Review: We searched PubMed, MEDLINE, and the Cochrane Database of Systematic Reviews databases from January 1, 2011, to May 1, 2016, yielding 966 articles. We focused our search on early-stage (melanoma in situ, stage I, and stage II) cutaneous melanoma...
January 19, 2017: JAMA Facial Plastic Surgery
https://www.readbyqxmd.com/read/28099619/conservative-surgical-management-of-in-situ-subungual-melanoma-long-term-follow-up
#10
Mariana Catalina De Anda-Juárez, María Abril Martínez-Velasco, Verónica Fonte-Ávalos, Sonia Toussaint-Caire, Judith Domínguez-Cherit
Subungual melanoma represents 20% of all melanomas in Hispanic population. Here, we report the outcome of 15 patients with in situ subungual melanoma treated with resection of the nail unit with a 5-mm margin without amputation, followed up for 55.93 ± 43.08 months. The most common complications included inclusion cysts and nail spicules. We found no evidence of local or distant recurrences at the last visit of our follow up. Functional outcome was good, with only one patient reporting persistent mild pain...
November 2016: Anais Brasileiros de Dermatologia
https://www.readbyqxmd.com/read/28092671/pde4d-promotes-fak-mediated-cell-invasion-in-braf-mutated-melanoma
#11
J Delyon, A Servy, F Laugier, J André, N Ortonne, M Battistella, S Mourah, A Bensussan, C Lebbé, N Dumaz
The cyclic AMP (cAMP) signaling pathway is critical in melanocyte biology for regulating differentiation. It is downregulated by phosphodiesterase (PDE) enzymes, which degrade cAMP itself. In melanoma evidence suggests that inhibition of the cAMP pathway by PDE type 4 (PDE4) favors tumor progression. For example, in melanomas harboring RAS mutations, the overexpression of PDE4 is crucial for MAPK pathway activation and proliferation induced by oncogenic RAS. Here we showed that PDE4D is overexpressed in BRAF-mutated melanoma cell lines, constitutively disrupting the cAMP pathway activation...
January 16, 2017: Oncogene
https://www.readbyqxmd.com/read/28086809/primary-mediastinal-clear-cell-sarcoma-a-case-report-and-review-of-the-literature
#12
REVIEW
Long Jin, Yuxia Sui, Haili Zhu, Zhizhong Chen, Shuguang Liu
BACKGROUND: Clear cell sarcoma (CCS) is a rare malignant soft-tissue neoplasm that displays melanocytic markers and exhibits striking histopathological features. The tumour has a predilection for the lower extremities and rarely presents in the mediastinum. CASE PRESENTATION: We present a case of primary mediastinal CCS in a 57-year-old man. Computer tomography (CT) revealed a 12 × 12 × 7.5 cm mass in the anterior mediastinum. Microscopically, the tumour mainly consisted of epithelioid cells with oval vesicular nuclei and eosinophilic cytoplasm...
January 13, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28079340/serum-tryptase-levels-in-melanoma-patients-case-control-study-and-review-of-the-literature
#13
Giovanni Paolino, Elisa Moliterni, Dario Didona, Michele Cardone, Teresa Lopez, Valentina Garelli, Antonio G Richetta, Ugo Bottoni, Carmen Cantisani, Alfredo Rossi, Stefano Calvieri
BACKGROUND: Serum tryptase results from the constant release of the enzyme from mast cells and serum tryptase levels are commonly considered to be related to the total number of mast cells. They are increased in several malignancies, as pancreatic carcinoma, angiosarcoma, hepatic carcinoma and proliferative and/or non- proliferative hematological disorders. Contrariwise, it has been reported that the number of tryptase+ and chymase+ mast cells was lower in deeply invasive melanoma compared to in-situ melanoma and dysplastic nevi...
January 12, 2017: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
https://www.readbyqxmd.com/read/28074906/antiproliferative-effects-of-1%C3%AE-oh-vitd3-in-malignant-melanoma-potential-therapeutic-implications
#14
Lucia Spath, Alessandra Ulivieri, Luca Lavra, Laura Fidanza, Marta Carlesimo, Maria Giubettini, Alessandra Narcisi, Emidio Luciani, Barbara Bucci, Daniela Pisani, Salvatore Sciacchitano, Armando Bartolazzi
Early detection and surgery represent the mainstay of treatment for superficial melanoma, but for high risk lesions (Breslow's thickness >0.75 mm) an effective adjuvant therapy is lacking. Vitamin D insufficiency plays a relevant role in cancer biology. The biological effects of 1α hydroxycholecalciferol on experimental melanoma models were investigated. 105 melanoma patients were checked for 25-hydroxycholecalciferol (circulating vitamin D) serum levels. Human derived melanoma cell lines and in vivo xenografts were used for studying 1α-hydroxycholecalciferol-mediated biological effects on cell proliferation and tumor growth...
January 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28073773/long-term-survival-and-clinical-benefit-from-adoptive-t-cell-transfer-in-stage-iv-melanoma-patients-is-determined-by-a-four-parameter-tumor-immune-signature
#15
Sara M Melief, Valeria V Visconti, Marten Visser, Merel van Diepen, Ellen H W Kapiteijn, Joost H van den Berg, John B A G Haanen, Vincent T H B M Smit, Jan Oosting, Sjoerd H van der Burg, Els M E Verdegaal
The presence of tumor-infiltrating immune cells is associated with longer survival and a better response to immunotherapy in early-stage melanoma, but a comprehensive study of the in situ immune microenvironment in stage IV melanoma has not been performed. We investigated the combined influence of a series of immune factors on survival and response to adoptive cell transfer (ACT) in stage IV melanoma patients. Metastases of 73 stage IV melanoma patients, 17 of which were treated with ACT, were studied with respect to the number and functional phenotype of lymphocytes and myeloid cells as well as for expression of galectins-1, -3, and -9...
January 10, 2017: Cancer Immunology Research
https://www.readbyqxmd.com/read/28073583/clinical-factors-associated-with-subclinical-spread-of-in-situ-melanoma
#16
Thuzar M Shin, Jeremy R Etzkorn, Joseph F Sobanko, David J Margolis, Joel M Gelfand, Emily Y Chu, Rosalie Elenitsas, Waqas R Shaikh, Christopher J Miller
BACKGROUND: Subclinical spread of in situ melanoma occurs at a wide frequency, ranging from 12% to 71%. OBJECTIVE: To identify clinical factors associated with subclinical spread of in situ melanoma. METHODS: We used a retrospective, cross-sectional study of 674 consecutive in situ melanomas to examine 627 patients treated with Mohs surgery and melanoma antigen recognized by T cells 1 immunostaining. The presence of subclinical spread was correlated with clinical characteristics...
January 7, 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28067428/hotair-role-in-melanoma-progression-and-its-identification-in-the-blood-of-patients-with-advanced-disease
#17
Monica Cantile, Giosuè Scognamiglio, Laura Marra, Gabriella Aquino, Chiara Botti, Maria Rosaria Falcone, Maria Gabriella Malzone, Giuseppina Liguori, Maurizio Di Bonito, Renato Franco, Paolo Antonio Ascierto, Gerardo Botti
OBJECTIVES: The molecular mechanisms responsible for the metastatic progression of melanoma have not been fully defined yet. We have recently shown that an important role in this process is certainly played by HOX genes, whose regulation is under control of particular non-coding RNAs, some of which are present within the HOX locus. HOTAIR is the most studied among them, whose aberrant expression is associated with the metastatic progression of many malignancies. The aim of this study was to verify the role played by HOTAIR in metastatic progression of melanoma and to evaluate the circulating levels of HOTAIR in the blood of patients with metastatic melanoma...
January 9, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28057179/biomarqueurs-pr%C3%A3-dictifs-de-r%C3%A3-ponse-aux-traitements-bloquant-les-voies-de-costimulation-inhibitrices
#18
REVIEW
Franck Pagès, Clémence Granier, Amos Kirilovsky, Carine Elsissy, Eric Tartour
Immunotherapies targeting co-inhibitory receptors recently open a new promising approach of cancer treatment. Indeed, an objective clinical response was observed after treatment by anti-CTLA-4 and anti-PD-1 in many indications but the treatment still failed in 70 to 80 % of cases treated. Given the adverse effects and the high cost of these therapies, there is a need for the development of biomarkers. This review focus on potential predictive biomarkers. In peripheral blood, high level of Il-2 soluble receptor at baseline and absence of ICOS+ CD4-T lymphocytes induction may be associated with the absence of clinical response for melanoma patients treated by ipilimumab (anti-CTLA-4)...
November 2016: Bulletin du Cancer
https://www.readbyqxmd.com/read/28040822/topical-imiquimod-clears-invasive-melanoma
#19
Brittany E Grady, James M Spencer
Malignant melanoma has continually shown a pattern of increased incidence and mortality in the last 50 years. Currently, wide local excision is the mainstay of treatment of primary cutaneous melanomas. Imiquimod has been shown to clear cases of melanoma in situ, but its role in the treatment of invasive cutaneous melanomas is unknown. We present the case of a patient who achieved complete histologic clearance of invasive melanoma following treatment with topical imiquimod.
November 2016: Cutis; Cutaneous Medicine for the Practitioner
https://www.readbyqxmd.com/read/28026870/vulvar-and-vaginal-melanoma-a-unique-subclass-of-mucosal-melanoma-based-on-a-comprehensive-molecular-analysis-of-51-cases-compared-with-2253-cases-of-nongynecologic-melanoma
#20
June Y Hou, Caitlin Baptiste, Radhika Bangalore Hombalegowda, Ana I Tergas, Rebecca Feldman, Nathaniel L Jones, Sudeshna Chatterjee-Paer, Ama Bus-Kwolfski, Jason D Wright, William M Burke
BACKGROUND: Optimal treatments for vulvar and vaginal melanomas (VVMs) have not been identified. Herein, the authors compare molecular profiles between VVM and nongynecologic melanoma (NGM) subtypes with the objective of identifying novel, targetable biomarkers. METHODS: In total, 2304 samples of malignant melanoma that were submitted to Caris Life Sciences between 2009 and 2015 were reviewed. In situ hybridization and immunohistochemistry were used to assess copy numbers and protein expression of selected genes...
December 27, 2016: Cancer
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