نتایج جستجو برای: tp53

تعداد نتایج: 8206  

Journal: :avicenna journal of medical biotechnology 0

background: tumour suppressor genes such as tp53, brca1 and rad51 are involved in dna repair and their malfunctions result in genomic instability and cancer. wild type (wt) tp53 binds to brca1and rad51 in vivo and in vitro. however, mutated tp53 in tumours can interfere with wt tp53 function. we studied how mutation of tp53 in mda-mb-468 cell line could affect its binding capacity and interfere...

A Vaziri Gohar GH Mohammadi M Baghaie M.R Shakibaie

Introduction: Despite improvements in the diagnosis and treatment of lung cancer in the past two decades, it has remained the most common cause of death from cancer worldwide. Among all genes that are mutated in lung cancer, TP53 located on chromosome 17P13/1 has a significant diagnostic and prognostic value. TP53 mutations have been extensively studied in lung cancer and TP53 mutational spectr...

TP53 acts as a tumor suppressor in cancer. It induces cell cycle arrest or apoptosis in response to cellular stress and damage. p53 gene alteration could cause uncontrolled cell proliferation.In the present study, we used TP53 gene as the seed in the construction of a protein-protein functional association network to identify genes that might involve in tumorgenesis process with TP53. TP53 prot...

ژورنال: :مجله دانشگاه علوم پزشکی بابل 0
ناصر پولادی n pouladi محمدعلی حسین پورفیضی ma hosseinpour feizi حوریه خانی h khani

سابقه و هدف: سرطان پستان، شایع­ترین سرطان در زنان است که ژن سرکوبگر توموری tp53 نیز از فراوانترین ژن­های تغییر یافته در سرطان­های انسانی می باشد. ارزیابی دقیق جهش های ژن tp53 در مبتلایان سرطان می تواند در تشخیص ، پیش آگهی یا درمان اهمیت داشته باشد. این مطالعه به منظور شناسایی جهش­های این ژن در مبتلایان سرطان پستان انجام شد. مواد و روش­ ها: در این مطالعه توصیفی، تعداد 102 نمونه توموری از زنان آذ...

Journal: :iranian journal of public health 0
farhad babaei 1. dept. of virology, school of public health, tehran university of medical sciences , tehran, iran. seyed ali ahmadi 2. school of medicine, tehran university of medical sciences , tehran, iran. ramin abiri 3. dept. of microbiology, school of medicine, kermanshah university of medical sciences , kermanshah, iran. farhad rezaei 1. dept. of virology, school of public health, tehran university of medical sciences , tehran, iran. maryam naseri 1. dept. of virology, school of public health, tehran university of medical sciences , tehran, iran. mahmoud mahmoudi 4. dept. of epidemiology and biostatistics, school of public health, tehran university of medical sciences , tehran, iran.

the tp53 gene is one of the most frequently mutated genes amongst human malignancies, particularly tp53 codon 72 polymorphism. furthermore, an association between the tp53 codon 72 variants and prostate cancer has been reported in several studies. although some studies have indicated an association between the tp53 arg/arg variant and an increased risk for prostate cancer, other studies have sh...

Journal: :iranian journal of pathology 2008
noushin afshar moghaddam parvin mahsoni amir pooyan tabibi

objective: to review her-2/neu and tp53 status and their correlation with all other prognostic clinicopathologic features of infiltrative ductal breast carcinomas. materials and methods: this cross sectional study was performed on 139 patients with infiltrative ductal breast carcinoma who were diagnosed between may 2000 and march 2006 at the surgery and pathology departments of alzahra hospital...

Amir Pooyan Tabibi Noushin Afshar Moghaddam, Parvin Mahsoni

  Objective: To review Her-2/neu and Tp53 status and their correlation with all other prognostic clinicopathologic features of infiltrative ductal breast carcinomas. Materials and Methods: This cross sectional study was performed on 139 patients with infiltrative ductal breast carcinoma who were diagnosed between May 2000 and March 2006 at the surgery and pathology departments of Alzahra Hosp...

Journal: :archives of breast cancer 0
mahin ahangar oskouee department of microbiology &virology, faculty of medicine , tabriz university of medical sciences, tabriz, iran shohreh shahmahmoudi department of virology, school of public health, tehran university of medical sciences, tehran, iran rakhshandeh nategh department of virology, school of public health, tehran university of medical sciences, tehran, iran heidar-ali esmaeili department of pathobiology, tabriz university of medical sciences, tabriz, iran firozeh safaeyan department of microbiology &virology, faculty of medicine , tabriz university of medical sciences, tabriz, iran maryam zareinghalame moghaddam department of microbiology, international branch of shahid beheshti medical university , tehran, iran

background: the tp53 gene is the most important tumor suppressor gene in humans. the aim of our study was to determine the genotype frequency of three common tp53 polymorphisms (codon 72 bstui and intron 6 mspi, as well as the intron 3) in a group of iranian women with and without breast cancer. methods: paraffin-embedded specimens of 65 malignant breast cancer cases and 65 cases with benign br...

Journal: :acta medica iranica 0
mehdi nikbahkt dastjerdi department of anatomy, school of medicine, isfahan university of medical sciences, isfahan, iran.

the tp53 tumor suppressor gene plays important roles in genomic stability. a common polymorphism at codon 72 of tp53 gene has been associated with increased risk for many human cancers. the p53 protein is expressed in colorectal cancer, but the reported prevalence of its expression varies widely. in the present study, the p53 protein expression in different genotypes of its codon 72 , was inves...

حسین پورفیضی, محمدعلی, خانی, حوریه, پولادی, ناصر,

سابقه و هدف: سرطان پستان، شایع­ترین سرطان در زنان است که ژن سرکوبگر توموری TP53 نیز از فراوانترین ژن­های تغییر یافته در سرطان­های انسانی می باشد. ارزیابی دقیق جهش های ژن TP53 در مبتلایان سرطان می تواند در تشخیص ، پیش آگهی یا درمان اهمیت داشته باشد. این مطالعه به منظور شناسایی جهش­های این ژن در مبتلایان سرطان پستان انجام شد. مواد و روش­ ها: در این مطالعه توصیفی، تعداد 102 نمونه توموری از زنان آذ...

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