نتایج جستجو برای: her2 gene
تعداد نتایج: 1152029 فیلتر نتایج به سال:
Background: Amplification of HER2 is seen in 20-30% of breast cancer cases. Measurement of HER2 gene amplification appears to be of vital importance in planning the treatment schedule for patients with breast carcinoma. The aim of our study was to evaluate HER2 amplification status in malignant and benign breast tumors by differential PCR (dPCR). Materials and Methods: The genomic DNA was ex...
Background and Objective:Determination of HER2 gene is crucial in breast carcinoma management and prognosis, as HER2 alterations are linked to a shorter disease-free period, overall survival and resistance to tamoxifen anti-estrogen therapy and other chemotherapy regimens, regardless of the nodal or hormone receptor status. This study aimed to...
background and objective:determination of her2 gene is crucial in breast carcinoma management and prognosis, as her2 alterations are linked to a shorter disease-free period, overall survival and resistance to tamoxifen anti-estrogen therapy and other chemotherapy regimens, regardless of the nodal or hormone receptor status. this study aimed to estimate her2 gene status of infiltrative mammary c...
background: amplification of her2 is seen in 20-30% of breast cancer cases. measurement of her2 gene amplification appears to be of vital importance in planning the treatment schedule for patients with breast carcinoma. the aim of our study was to evaluate her2 amplification status in malignant and benign breast tumors by differential pcr (dpcr). materials and methods: the genomic dna was extra...
Background and Objective: Breast cancer is the fifth common cause of death in the world and is considered as the leading cause of cancer related death among females. HER2 is a surface antigen which is overexpressed in 30% of breast cancer cases. The aim of this study was cloning of HER2 receptor gene in pCDNA3.1Hygro+ expression vector, expression of this protein in LL2 eukaryotic cell line and...
Background and aims: Gastric malignancies have the fourth place among the most prevalent cancers. In many cancers, overexpressing of HER2/neu gene has been observed with a poor prediction. Up to now, there is a little information about the duplication of HER2/neu gene in gastric cancer using MLPA method. The present study aimed to investigate the frequency of mutations resulting from ampl...
background : mdm2, e-cadherin, survivin and her2 genes are involved in the regulation of normal cell growth. however, any crucial change in their expression levels can convert a normal cell into a cancer cell. numerous studies have identified alterations of these gene expression levels in various cancers, particularly in breast cancer. thus, they may be used as diagnostic biomarkers. in this ex...
conclusions this study on a limited number of patients treated with adjutant anthracyclins-based regimens, revealed that her2/neu is not a unique strong predictor for outcome, thus according to combination of her2/neu status and other clinical factors, it is necessary to distinguish patients at high risk of recurrence. results her2/neu amplification was identified in 19 (38%) of 50 patients. no...
Background: Breast cancer is the most common female malignancy world wide and in Iran as well and is the second cause of death due to malignancy after lung cancer. Varieties of factors such as estrogen and progesterone receptors, and axillary lymph node involvement may influence the prognosis and therapeutic approach. However, mutation in HER2 gene may also affect the prognosis. In this study...
Background & Objective: The her2 amplification plays an important role in breast cancer management. Therefore, there is a need for using supplementary molecular methods in IHC equivocal cases. Present study has been conducted to determine the effects of clinicopathological variables on her2 gene amplification by chromogenic in situ hybridization (CISH) in IHC ...
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