Advertisement

Topics

Lack of GNAQ germline mutations in uveal melanoma patients with high risk for hereditary cancer predisposition.

06:00 EST 13th November 2010 | BioPortfolio

Summary of "Lack of GNAQ germline mutations in uveal melanoma patients with high risk for hereditary cancer predisposition."

A high frequency of somatic mutation in GNAQ has been reported in uveal melanoma (UM). GNAQ is located in the chromosomal band 9q21, the same chromosomal band that harbors a putative candidate gene for hereditary UM. We investigated the frequency of germline sequence alterations in the GNAQ gene in UM patients with increased predisposition to hereditary cancer. A total of 44 high risk UM patients were studied including three patients with a family history of UM, 15 patients with a family history of cutaneous melanoma (CM), three patients with early age at onset of their UM (<30 years) and 23 patients with strong family history of cancer and/or personal history of multiple primary tumors. Mutational screening of the seven exons of GNAQ and nearby intronic sequence was carried out by direct sequencing. We identified two deep intronic variants but no potential pathogenic mutations in GNAQ. Our results exclude GNAQ as a candidate gene in UM patients with a high risk for hereditary cancer predisposition.

Affiliation

Department of Ophthalmology, The Ohio State University, 400 W 12th Ave, Rm 202, Columbus, OH, 43210, USA, Mohamed.abdel-rahman@osumc.edu.

Journal Details

This article was published in the following journal.

Name: Familial cancer
ISSN: 1573-7292
Pages:

Links

DeepDyve research library

PubMed Articles [35079 Associated PubMed Articles listed on BioPortfolio]

The Role of Mutation Rates of GNAQ or GNA11 in Cases of Uveal Melanoma in Japan.

GNAQ and GNA11 mutations are thought to be important for the tumorigenesis of uveal melanoma. Although previous studies have reported on mutation rates in cases of uveal melanoma, presently, no such r...

RasGRP3 Mediates MAPK Pathway Activation in GNAQ Mutant Uveal Melanoma.

Constitutive activation of Gαq signaling by mutations in GNAQ or GNA11 occurs in over 80% of uveal melanomas (UMs) and activates MAPK. Protein kinase C (PKC) has been implicated as a link, but the me...

A population-based analysis of germline BAP1 mutations in melanoma.

Germline mutation of the BRCA1 associated protein-1 (BAP1) gene has been linked to uveal melanoma, mesothelioma, meningioma, renal cell carcinoma and basal cell carcinoma. Germline variants have also ...

SF3B1 and BAP1 mutations in blue nevus-like melanoma.

Blue nevi are melanocytic tumors originating in the cutaneous dermis. Malignant tumors may arise in association with or resembling blue nevi, so called 'blue nevus-like melanoma', which can metastasiz...

Systematic genomic and translational efficiency studies of uveal melanoma.

To further our understanding of the somatic genetic basis of uveal melanoma, we sequenced the protein-coding regions of 52 primary tumors and 3 liver metastases together with paired normal DNA. Known ...

Clinical Trials [2466 Associated Clinical Trials listed on BioPortfolio]

Intermittent Selumetinib for Uveal Melanoma

The purpose of this study is to find out what effects, good and/or bad, intermittent dosing of the drug Selumetinib will have on subjects with uveal melanoma. Selumetinib is a drug that bl...

Vorinostat in Patients With Class 2 High Risk Uveal Melanoma

This proof-of-concept study will evaluate the ability of vorinostat to induce the transformation of Class 2 uveal melanoma cells into a cell phenotype that resembles normal melanocytes.

A Phase I Study of LXS196 in Patients With Metastatic Uveal Melanoma

This study is to characterize the safety, tolerability, pharmacokinetics (PK), pharmacodynamics (PD) and preliminary anti-tumor activity of LXS196 as a single agent in patients with metast...

Trial of Nivolumab in Combination With Ipilimumab in Subjects With Previously Untreated Metastatic Uveal Melanoma

This is a Phase 2, single-arm study of nivolumab combined with ipilimumab in subjects with previously untreated, unresectable or metastatic uveal melanoma. Previous studies with immunother...

Yttrium90, Ipilimumab, & Nivolumab for Uveal Melanoma With Liver Metastases

Reports to date show limited efficacy of immunotherapy for uveal melanoma. Recent experimental and clinical evidence suggests synergy between radiation therapy and immunotherapy. We will e...

Medical and Biotech [MESH] Definitions

An unpigmented malignant melanoma. It is an anaplastic melanoma consisting of cells derived from melanoblasts but not forming melanin. (Dorland, 27th ed; Stedman, 25th ed)

Found in large amounts in the plasma and urine of patients with malignant melanoma. It is therefore used in the diagnosis of melanoma and for the detection of postoperative metastases. Cysteinyldopa is believed to be formed by the rapid enzymatic hydrolysis of 5-S-glutathionedopa found in melanin-producing cells.

Experimentally induced tumor that produces MELANIN in animals to provide a model for studying human MELANOMA.

A ring of tissue extending from the scleral spur to the ora serrata of the retina. It consists of the uveal portion and the epithelial portion. The ciliary muscle is in the uveal portion and the ciliary processes are in the epithelial portion.

A cellular subtype of malignant melanoma. It is a pigmented lesion composed of melanocytes occurring on sun-exposed skin, usually the face and neck. The melanocytes are commonly multinucleated with a "starburst" appearance. It is considered by many to be the in situ phase of lentigo maligna melanoma.

Quick Search
Advertisement
 


DeepDyve research library

Relevant Topics

Melanoma
Melanoma is a highly malignant tumor of melanin-forming cells (melanocytes) There are most commonly found in the skin (resulting from sunlight exposure), but also in the eyes and mucous membranes. Metastasis to other regions of the body is also common....

Cancer
  Bladder Cancer Brain Cancer Breast Cancer Cancer Cervical Cancer Colorectal Head & Neck Cancers Hodgkin Lymphoma Leukemia Lung Cancer Melanoma Myeloma Ovarian Cancer Pancreatic Cancer ...

Bioinformatics
Bioinformatics is the application of computer software and hardware to the management of biological data to create useful information. Computers are used to gather, store, analyze and integrate biological and genetic information which can then be applied...


Searches Linking to this Article