نتایج جستجو برای: سلول های k562
تعداد نتایج: 483920 فیلتر نتایج به سال:
Membrane currents were examined in a drug-sensitive human leukemia cell line (K562) and its multidrug-resistant cell line (K562/ADM) under the whole-cell variation of the patch electrode voltage clamp technique. Most K562 cells showed only the outward current, which was completely suppressed by internal Cs+ ions and 20 mM ethyleneglycol bis(beta-aminoethyl ether)-N,N,N',N'-tetraacetic acid. In ...
We have investigated the hormonal responsiveness of K562 cells using a serum-substituted in vitro clonogenic assay. Dexamethasone inhibited colony formation by the K562 cells. and the inhibitory effect could be reversed by progesterone (10 M). Fluoxymesterone caused a prominent enhancement of K562 colony growth. whereas estriol had no effect. Stimulation by triiodothyronine was maximal at iO M....
We have investigated the hormonal responsiveness of K562 cells using a serum-substituted in vitro clonogenic assay. Dexamethasone inhibited colony formation by the K562 cells, and the inhibitory effect could be reversed by progesterone (10(-6) M). Fluoxymesterone caused a prominent enhancement of K562 colony growth, whereas estriol had no effect. Stimulation by triiodothyronine was maximal at 1...
The K562/VCR cell line, exhibiting acquired multidrug resistance (MDR) with increased expression of a cell surface glycoprotein (P-glycoprotein), was isolated from human erythroleukemia K562 cells. Various compounds that induced erythroid differentiation of K562 cells were tested for their effects on growth and differentiation of these K562/VCR cells. Sodium butyrate, hemin, 1-beta-D-arabinofur...

 Purpose: To determine the effect of fresh soy milk and its compounds (coumestrol, daidzein genistein) on apoptosis in human leukemic cells peripheral blood mononuclear (PBMC).
 Methods: The apoptotic (K562, Jurkat, U937) PBMC was determined by flow cytometry. from healthy donors were isolated conducting density gradient centrifugation principle. Lymphoprep cytotoxicity evaluated 3-(...
We previously isolated aaptamine, a benzonaphthyridine alkaloid, from marine sponge Aaptos suberitoids. In this study, we investigated the anti-proliferative effect of aaptamine on chronic myeloid leukemia (CML) K562 cells. Aaptamine inhibited growth of K562 with a GI50 as 10 μM, and arrested cell cycle at G2/M phase. Western blot analysis indicated that aaptamine induced p21 expression in K562...
پروتئین mbd2یکی از مهار کنند ه های ژن گاما گلوبین است.مکانیسم این مهار ناشناخته می باشد.با توجه به بیان ژن گاما گلوبین و پروتئین mbd2در رده سلولی k562،ما از این سلول ها به عنوان سیستم مدل استفاده کردیم.ابتدا پنج کلون لنتی ویروسی حاوی shrna-mbd2در سلول های 293tتست شدند،به این ترتیب که لنتی وکتور های plko.1به همراه shrna-mbd2به صورت گذرا به درون سلول های293tترانسفکت شدند و از اسکلت وکتور plko.1 ب...
Ouabain has shown powerful anti-proliferation activities in various cancers, but its effect on imatinibresistant chronic myeloid leukemia and toxicity normal mice not been investigated. Cell Counting Kit-8 assay was used to detect cytotoxicity reversal of ouabain with different concentration (0.01 μM, 0.1 1.0 10 μM) drug resistance imatinib-resistant cell line (K562/G01 line). Flow cytometry th...
The aim of this study was to investigate the effect of the p15 gene combined with Bcr-abl-specific siRNA and STI571 on the proliferation, cell cycle and apoptosis of K562 chronic myeloid leukemia cells. Using the gene sequence results, we amplified the p15 gene from normal peripheral blood by RT-PCR, and constructed a p15-pcDNA3.1 vector. The K562 cell line with G418 resistance was screened, sy...
چکیده سابقه و هدف امروزه ژنوم ردههای سلولی به منظور ایجاد مدلهای بیماری و درمان آنها ویرایش میشود. البته بزرگی ژن Cas9 موجب مشکلاتی از جمله پایین بودن کارآیی سیستم CRISPR شده است. برای حل این مشکل، ردههای سلولی بیانکننده Cas9 تولید شدهاند که در آنها تنها باید بخش RNA راهنمای CRISPR به سلول ترانسفکت شود. مواد و روشها در این مطالعه تجربی، قطعه PGK-PURO/CMV (PPC) با PCR از وکتور pAAVS1-p...
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