نتایج جستجو برای: bcl 2 gene
تعداد نتایج: 3394600 فیلتر نتایج به سال:
Translocation of the bcl-2 gene to the immunoglobulin heavy chain gene is the most common alteration in follicular lymphoma. The result is the deregulated expression of bcl-2 and increased resistance to cell death. Regulation of the immunoglobulin heavy chain gene is controlled in part by four DNase I-hypersensitive regions located 3' of the gene. Here, we show that these four enhancer regions ...
bcl-2 and p53 gene products have been both linked to programmed cell death pathways. We have analyzed several human breast cancer cell lines for the expression of bcl-2 and p53. We found an inverse correlation between the expression of the two proteins. The result suggested that mutant p53 could substitute for bcl-2 function in breast cancer cells and that could also down-regulate bcl-2 express...
OBJECTIVE To explore the influence of silencing Bcl-2 expression by small interfering RNA (siRNA) on Bcl-2 protein expression, cell apoptosis rate and radiosensitivity of gastric cancer BGC823 cells. METHODS siRNA segment for Bcl-2 gene was designed and synthesized, then was induced into gastric cancer BGC 823 cells by liposome transfection. Bcl-2 protein expression was detected by Western Bl...
Background: Given the prevalence of breast cancer in Iran, the increased incidence of this malignancy during the past two decades, the high mortality rate of patients, and according to oral consumption, low cost and easy access to the public extracts of milk thistle, in this study we aimed to investigate the effectiveness of this herb on MCF-7 breast cancer cells. Material and Methods: In ord...
BACKGROUND/AIMS Mesenchymal stem cell (MSC) transplantation has emerged as an option for the treatment of chronic hepatic cirrhosis, while its therapeutic efficacy could be improved. The bcl-2 gene is anti-apoptotic and can help cell survival and proliferation. Therefore, we explored whether transplanted MSCs with enhanced bcl-2 expression may be beneficial in the treatment of experimental cirr...
We have determined that the bcl-2 (B-cell leukemia/lymphoma 2) gene is transcribed into three overlapping mRNAs, and we have cloned bcl-2 cDNA sequences. Sequence analysis of the bcl-2 cDNA clones and comparison of their sequences to their genomic counterparts indicate that the bcl-2 gene contains at least two exons. The three bcl-2 transcripts, which are 8.5, 5.5, and 3.5 kilobases (kb) long, ...
In three lymphoma cell lines carrying t(14;18), named FL-18, FL-218, and FL-318, the genomic organization of IgH gene was compared with the expression of bcl-2 gene; the t(14;18) of the FL-18 cells occurred downstream from the major breakpoint cluster region (mbr) of a bcl-2 gene, and that of the FL-218 and FL-318 cells within the mbr. The FL-318 expressed the normal-sized bcl-2 transcript of 8...
چکیده مقدمه: با توجه به شیوع سرطان سینه در ایران، شیب صعودی این بدخیمی طی دو دهه گذشته، میزان مرگ ومیر بالای مبتلایان و از طرفی دیگر با توجه به مصرف خوراکی، ارزان بودن و دسترسی آسان عموم به عصاره گیاه خارمریم (milk thistle)، در این تحقیق برآن شدیم تا اثربخشی این فراورده گیاهی را بر روی سلول سرطان سینه رده mcf-7 بررسی کنیم. مواد و روش ها: به منظور بررسی اثر silibinin در سرطان سینه، سلول های رده ...
The bcl-2 family of genes code for proteins that contain anti-apoptotic or pro-apoptotic activity. The human bfl-1 gene contains an open reading frame for a 175-amino acid Bcl-2 family protein. Among the various Bcl-2 family members, the Bfl-1 protein shares the highest homology with the mouse A1 protein. These two proteins share three conserved domains, Bcl homology (BH)1, BH2, and BH3, with o...
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