نتایج جستجو برای: uveal melanoma

تعداد نتایج: 54264  

Journal: :Investigative ophthalmology & visual science 2003
Nicholas Hearle Bertil E Damato Jane Humphreys Julie Wixey Helen Green Joanne Stone Douglas F Easton Richard S Houlston

PURPOSE Reports suggest that a subset of uveal melanoma is familial. The association of uveal melanoma with breast and ovarian cancer and the increased risk in BRCA2-linked families implicates germline BRCA2 mutations as the cause of a subset of uveal melanomas. Similarly, the association between cutaneous and uveal melanomas in some families, coupled with the high frequency of somatic deletion...

2012
Rosaria Gangemi Valentina Mirisola Gaia Barisione Marina Fabbi Antonella Brizzolara Francesco Lanza Carlo Mosci Sandra Salvi Marina Gualco Mauro Truini Giovanna Angelini Simona Boccardo Michele Cilli Irma Airoldi Paola Queirolo Martine J. Jager Antonio Daga Ulrich Pfeffer Silvano Ferrini

Uveal melanoma is an aggressive cancer that metastasizes to the liver in about half of the patients, with a high lethality rate. Identification of patients at high risk of metastases may provide indication for a frequent follow-up for early detection of metastases and treatment. The analysis of the gene expression profiles of primary human uveal melanomas showed high expression of SDCBP gene (e...

Journal: :The oncologist 2016
Deborah Kuk Alexander N Shoushtari Christopher A Barker Katherine S Panageas Rodrigo R Munhoz Parisa Momtaz Charlotte E Ariyan Mary Sue Brady Daniel G Coit Kita Bogatch Margaret K Callahan Jedd D Wolchok Richard D Carvajal Michael A Postow

BACKGROUND Subtypes of melanoma, such as mucosal, uveal, and acral, are believed to result in worse prognoses than nonacral cutaneous melanoma. After a diagnosis of distant metastatic disease, however, the overall survival of patients with mucosal, uveal, acral, nonacral cutaneous, and unknown primary melanoma has not been directly compared. MATERIALS AND METHODS We conducted a single-center,...

2012
Shuiqing Hu Qingqiong Luo Biyun Cun Dan Hu Shengfang Ge Xianqun Fan Fuxiang Chen

Uveal melanomas are highly metastatic and have high rate of recurrence due to the lack of effective systemic therapy. The identification of important survival pathways in uveal melanomas provides novel therapeutic targets for effective treatment. In the present study, we found that the NF-κB signaling pathway was constitutively and highly activated in uveal melanoma cells. Treatment with the ph...

2011
Armelle Calipel Sarah E. Coupland Bertil Damato

RASSF1A gene, found at the 3p21.3 locus, is a tumor suppressor gene frequently hypermethylated in human cancers. In this study, we report that compared with melanocytes in normal choroid, RASSF1A is downregulated in uveal melanoma samples and in uveal melanoma cell lines. LOH at 3p21.3was detected in 50% of uveal melanoma. Moreover, methylation of the RASSF1A promoter was detected in 35 of 42 t...

Journal: :JAMA ophthalmology 2013
Carol L Shields Swathi Kaliki Michael Livesey Brianna Walker Robert Garoon Marissa Bucci Eric Feinstein Aline Pesch Cristina Gonzalez Sara E Lally Arman Mashayekhi Jerry A Shields

IMPORTANCE Ocular/oculodermal (oculo[dermal]) melanocytosis is a congenital periocular pigmentary condition that can lead to the development of uveal melanoma, estimated at 1 in 400 affected patients. In this study, patients with melanocytosis who developed uveal melanoma were found to have double the risk for metastasis compared with those without melanocytosis. OBJECTIVE To determine the re...

Journal: :Acta ophthalmologica 2006
Ada Girnita Charlotta All-Ericsson Mario A Economou Kristina Aström Magnus Axelson Stefan Seregard Olle Larsson Leonard Girnita

PURPOSE Uveal melanoma has a high mortality rate due to a high incidence of metastasis (up to 50%) which preferentially occurs in the liver. Conventional chemotherapy being the only therapeutic option today against metastatic uveal melanoma, has not proved to be effective. Therefore, new molecular targets important for malignant phenotype of uveal melanoma have to be found to design efficient p...

Journal: :Investigative ophthalmology & visual science 2008
Mario A Economou Sandra Andersson Diana Vasilcanu Charlotta All-Ericsson Eline Menu Ada Girnita Leonard Girnita Magnus Axelson Stefan Seregard Olle Larsson

PURPOSE The cyclolignan picropodophyllin (PPP) efficiently blocks the activity of insulin-like growth factor-1 receptor (IGF-1R) and inhibits growth of uveal melanoma cells in vitro and in vivo. In this study, we aimed to investigate the efficiency of orally administered PPP on growth of uveal melanoma xenografts. Further, we focused on the effect of PPP on vascular endothelial growth factor (V...

2017
Richard D Carvajal Gary K Schwartz Tongalp Tezel Brian Marr Jasmine H Francis Paul D Nathan

Uveal melanoma represents ∼85% of all ocular melanomas and up to 50% of patients develop metastatic disease. Metastases are most frequently localised to the liver and, as few patients are candidates for potentially curative surgery, this is associated with a poor prognosis. There is currently little published evidence for the optimal management and treatment of metastatic uveal melanoma and the...

Journal: :Investigative ophthalmology & visual science 2001
J A Metzelaar-Blok J A ter Huurne H M Hurks J E Keunen M J Jager N A Gruis

PURPOSE Allelic variations of the melanocortin-1 receptor (MC1R) gene have been linked to red hair and sun-sensitive skin types and may play a role in the susceptibility to develop cutaneous malignant melanoma (CMM). To define the role of MC1R gene in uveal melanoma, a case control study was performed, in which the presence of MC1R gene variations in uveal melanoma patients was compared with th...

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