نتایج جستجو برای: cdkn2a
تعداد نتایج: 2929 فیلتر نتایج به سال:
AIMS It has been shown previously (by immunohistochemistry) that gastric adenocarcinomas harbouring Epstein-Barr virus (EBV) frequently lose p16 protein. This study aimed to examine the mechanisms of inactivation of the CDKN2A gene and correlate the results with clinicopathological features. METHODS Methylation specific polymerase chain reaction was used to detect CDKN2A promoter methylation ...
Purpose: Follicular lymphoma, the most common indolent lymphoma, is clinically heterogeneous. CDKN2A encodes the tumor suppressors p16 and p14 and frequently suffers deleterious alterations in cancer. We investigated the hypothesis that deletion or hypermethylation of CDKN2A might identify follicular lymphoma cases with distinct clinical or pathologic features potentially amenable to tailored c...
Approximately 5% to 10% of melanoma may be hereditary in nature, and about 2% of melanoma can be specifically attributed to pathogenic germline mutations in cyclin-dependent kinase inhibitor 2A (CDKN2A). To appropriately identify the small proportion of patients who benefit most from referral to a genetics specialist for consideration of genetic testing for CDKN2A, we have reviewed available pu...
The locus CDKN2A/B (9p21.3), which comprises the tumor suppressors genes CDKN2A and CDKN2B and the long noncoding RNA (lncRNA) known as ANRIL (or CDKN2B-AS), was associated with childhood acute lymphoblastic leukemia (ALL) susceptibility in several genome wide association studies (GWAS). However, the variants associated in the diverse studies were different. Recently, new and independent SNPs d...
Cyclin-dependent kinase inhibitors CDKN2B and CDKN2A are tumor suppressor genes that are frequently dysregulated in a variety of cancers. Aberrant regulation via DNA hypermethylation causes gene silencing. Arsenic trioxide has been successfully used to treat malignant, hematopoietic diseases and is known to act by induction of apoptosis and inhibition of cellular proliferation. However, arsenic...
BACKGROUND AND OBJECTIVES Deletion and methylation of the 9p21 chromosomal region are frequent in childhood acute lymphoblastic leukemia (ALL) but the prognostic significance is controversial. They inactivate CDKN2A, a gene encoding both p16INKa and p14ARF and, in some cases, contiguous genes that may influence chemosensitivity, such as CDKN2B encoding p15INKb or MTAP encoding methylthioadenosi...
The strongest known epidemiologic risk factor for melanoma is a large number of melanocytic nevi (Swerdlow and Green, 1987), whereas the most important genetic risk factor is germline mutation of the CDKN2A gene, which encodes the cell cycle inhibitor p16 (Kamb et al, 1994; Nobori et al, 1994). CDKN2A mutations exist in some melanoma-prone families (reviewed in Hayward, 1996; Foulkes et al, 199...
OBJECTIVES The goal of this study was to investigate the role in atherosclerosis of the tumor suppressor protein ARF (human p14(ARF), mouse p19(ARF)) encoded by the CDKN2A gene. BACKGROUND Atherosclerosis is characterized by excessive proliferation and apoptosis, 2 cellular processes regulated by CDKN2A. Although recent genome-wide association studies have linked atherosclerotic diseases to a...
Many studies have documented CpG island hypermethylation in human colon adenocarcinomas. Several of these reports have additionally found such CpG island hypermethylation to be more extensive in tumors with a mismatch-repair deficiency, as revealed by microsatellite instability (MSI+). Because the source of samples used in these prior studies may not have been representative of the general popu...
Background: In meningiomas, CDKN2A/B deletions are associated with poor outcomes but rare in most cohorts (1-5%). Large molecular datasets therefore required to explore these and their relationship other prognostic CDKN2A alterations. Methods: We utilized multidimensional data of 560 meningiomas from 5 independent comprehensively interrogate the spectrum alterations through DNA methylation, cop...
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