Lack of association between the MDM2 promoter polymorphism SNP309 and clinical outcome in chronic lymphocytic leukemia.
نویسندگان
چکیده
The 309T>G polymorphism in the promoter region of the MDM2 gene, known as SNP309, has recently been suggested as an unfavorable prognostic marker in chronic lymphocytic leukemia (CLL) although this has been questioned. To investigate this further, we analyzed the MDM2 SNP309 genotypes in 418 CLL patients and correlated the results with established CLL prognostic factors, time to treatment and overall survival. In this Swedish cohort, no association existed between any particular MDM2 SNP309 genotype, overall survival and time to treatment. Furthermore, no correlation was shown between the MDM2 SNP309 genotypes and Binet stage, IGHV mutational status and recurrent genomic aberrations. In summary, this study argues against the use of the MDM2 SNP309 as a prognostic marker in CLL.
منابع مشابه
Lack of an Association between a Functional Polymorphism in the MDM2 Promoter and Breast Cancer in Women in Northeast Iran
Background: Breast cancer is one of the most common cancers among women worldwide. Tumor protein 53 (TP53) and its regulator the mouse double murine 2 (MDM2) have important roles in tumorigenesis by playing key roles in cell division and response to DNA damage. MDM2 SNP309 T>G (rs2279744) polymorphism in the promoter region of MDM2 gene can cause dysfunction and inactivation of TP53 which promo...
متن کاملمطالعه ارتباط لوسمی حاد لنفوئیدی و پلی مورفیسم پروموتر ژن MDM2(SNP309) در بیماران استان خوزستان
Background & Aims: Leukemia is a type of malignancy of the hematopoietic tissue that accompanies the incomplete development and proliferation of white blood cells. In acute lymphoid leukemia (ALL), many lymphocytes that have not yet completely evolved, are impaired and increasingly found in peripheral blood and bone marrow. MDM2 is a proto-oncogene with E3 ubiquitin ligase activity that acts as...
متن کاملMDM2 promoter SNP309 is associated with the risk of hepatocellular carcinoma in patients with chronic hepatitis C.
PURPOSE A single nucleotide polymorphism (SNP) in the promoter region of MDM2 gene, SNP309, has recently been shown to be associated with accelerated tumor formation in both hereditary and sporadic cancers in humans. However, the association of SNP309 with hepatocellular carcinoma is unknown. We evaluated the association of SNP309 with the risk of hepatocellular carcinoma development among Japa...
متن کاملmicroRNA-34a expression correlates with MDM2 SNP309 polymorphism and treatment-free survival in chronic lymphocytic leukemia.
In chronic lymphocytic leukemia (B-CLL), aberrations along the p53 axis lead to decreased overall survival and therapy resistance. Recent studies identified microRNA-34a (miR-34a) as a major downstream target of p53. We monitored the expression of miR-34a during disease development in a murine B-CLL model. miR-34a was up-regulated more than 20-fold during the leukemic but not during the preleuk...
متن کاملAssociation between rs 1800561 CD38 Gene Polymorphism and Chronic Lymphocytic Leukemia Risk
Background and purpose: Chronic lymphocytic leukemia (CLL) is the most common form of adult leukemia characterized by the accumulation of seemingly mature type B lymphocytes in peripheral blood and lymphatic organs. One of the main markers used in the diagnosis and prognosis of CLL is the CD38 gene. Polymorphism is considered to be a major genetic source of phenotypic change within a species an...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Leukemia research
دوره 34 3 شماره
صفحات -
تاریخ انتشار 2010