نتایج جستجو برای: ژن tp53
تعداد نتایج: 23956 فیلتر نتایج به سال:
Mutations in TP53 are common in non-small cell lung cancer. Apart from the loss of tumor-suppressor functions, TP53 mutations may result in gain of function favoring cellular proliferation, inhibition of apoptosis, and genomic instability. Some TP53 mutations are more likely to affect the course of the disease than others.
Primary central nervous system lymphoma (PCNSL) is an aggressive variant of diffuse large B-cell lymphoma (DLBCL) confined to the CNS. TP53 mutations (MUT-TP53) were investigated in the context of MIR34A/B/C- and DAPK promoter methylation status, and associated with clinical outcomes in PCNSL patients. In a total of 107 PCNSL patients clinical data were recorded, histopathology reassessed, and ...
سرطان پستان به عنوان شایعترین سرطان در جمعیت زنان جهان گزارش شده است.این بیماری تحت تاثیر عوامل محیطی و ژنتیکی قرار دارد. از مهمترین ژنهای دخیل در سرطان پستان می توان بهbrca1/ 2 ،pten ،tp53 وmmps اشاره کرد. ژنmmp9از اعضای خانواده mmps می باشد که بر روی کروموزوم 20درموقعیتq 11.2- q13.1 قرار گرفته و پروتئین 92 کیلو دالتونی به نام gelatinase b را بیان می کند که می تواند ماتریکس خارج سلولی را تجزیه...
UNLABELLED African Americans are disproportionately affected by early-onset, high-grade malignancies. A fraction of this cancer health disparity can be explained by genetic differences between individuals of African or European descent. Here the wild-type Pro/Pro genotype at the TP53Pro72Arg (P72R) polymorphism (SNP: rs1042522) is more frequent in African Americans with cancer than in African A...
BACKGROUND Molecular factors influencing Wilms tumor (WT) development remain largely unknown. TP53 mutations seem to be restricted to the anaplastic WT subtype. However, TP53 polymorphisms do not have a defined role in the disease. PROCEDURE To assess the impact of TP53 mutations and polymorphisms (PIN2, PIN3, and PEX4) on risk of development, age at diagnosis, and survival in WT, we analyzed...
This study evaluates the influence of the TP53 genetic status on tumour recurrence and progression with a highly effective electrophoretic technique. DNA from tissue of 75 non-invasive urinary bladder cancers was PCR amplified in the TP53 exons 5-8 and run on horizontal polyacrylamide gels under defined temperature conditions to yield specific gel shifts. Kaplan-Meier and Cox-Regression analysi...
The tumour suppressor p53 is mutated in cancer, including over 96% of high-grade serous ovarian cancer (HGSOC). Mutations cause loss of wild-type p53 function due to either gain of abnormal function of mutant p53 (mutp53), or absent to low mutp53. Massively parallel sequencing (MPS) enables increased accuracy of detection of somatic variants in heterogeneous tumours. We used MPS and immunohisto...
Epidermal growth factor receptor (EGFR) gene amplification occurs in glioblastomas as so-called double minutes. Because double minutes are extrachromosomal fragments, selection pressures must operate to maintain high EGFR copy number over multiple cell divisions. In analyses of glioblastoma lysates, EGFR amplification has been observed almost exclusively in glioblastomas harboring wild-type TP5...
Retinoblastoma binding protein 6 (RBBP6) plays an important role in chaperone-mediated ubiquitination and interacts with TP53 in carcinogenesis. However, the clinicopathologic significance of RBBP6 expression in colon cancer is unknown; in particular, the prognostic value of RBBP6 combined with TP53 expression has not been explored. Therefore, quantitative real-time PCR and western blot analyse...
BACKGROUND TP53 has been described as a prognostic factor in many malignancies, including breast cancer. Whether it also might be a predictive factor with reference to chemo- and endocrine therapy is more controversial. PATIENTS AND METHODS We investigated relapse-free (RFS), breast cancer-corrected (BCCS) and overall survival (OS) related to TP53 status in node-positive breast cancer patient...
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