نتایج جستجو برای: hela
تعداد نتایج: 15428 فیلتر نتایج به سال:
سابقه و هدف: مهاجرت سلولی نقش مهمی در بسیاری از فرآیند های بیولوژیک و پاتولوژیک از جمله رشد جنین و متاستاز ایفا می-کند. یکی از عوامل تنظیم کننده مهاجرت سلولی، پروتئین rac1 از اعضای خانواده rho gtpase می باشد. در این مطالعه از پپتید ملیتین موجود در سم زنبور عسل به عنوان یک ترکیب طبیعی با اثرات شناخته شده ضد سرطانی و آپوپتوزی بر بیان rac1 استفاده گردید.مواد و روش ها: سلول های hela در محیط dmem کش...
it has been reported that several members of convolvulaceae family such as convolvulus arvensis possess cytotoxic activity on some tumor cell lines. proteoglycan mixture, the water extract of c. arvensis with high molecular weight, has potent anti-angiogenesis and stimulating effects. in this study, arial parts of c. arvensis were collected and identified, and the cytotoxic effects of chlorofor...
سابقه و هدف: رسیدن دوز مناسب به صورت همگن به بافت تومورال و حفاظت بافتهای سالم اطراف تومور از اهداف اصلی پرتو درمانی است. حساسیت رادیوبیولوژیکی بافت سرطانی مبنای دوز تجویز شده برای هر جلسه رادیوتراپی می باشد. از آنجاییکه بیماریهای ویروسی در منطقه تومورال حساسیت پرتویی سلولهای سرطانی را تحت تأثیر قرار می دهد این مطالعه به منظور بررسی حساسیت پرتویی در سلولهای سرطانی آغشته به ویروس انجام شده است. ...
Suberoylanilide hydroxamic acid (SAHA) is a histone deacetylase (HDAC) inhibitor which has anticancer effects. We evaluated the growth inhibitory effects of SAHA on HeLa cervical cancer cells in relation to reactive oxygen species (ROS) levels. SAHA inhibited the growth of HeLa cells with an IC(50) of approximately 10 µM at 24 h, and induced apoptosis which was accompanied by the cleavage of PA...
) Cancer stem cells (CSCs) are believed responsible for the tumor initiation and the resistance to current cancer therapies such as chemoand radiotherapy, which also lead to tumor recurrences and metastasis. By using a 3-D sphere culture method that favors the growth of self-renewal cells, we have successfully isolated sphere forming cells (SFCs) from cervical cancer HeLa and SiHa cells. It is ...
The objective of this study was to observe the apoptosis-inducing effect and mechanism of baicalin on human cervical cancer HeLa cells. The inhibitory effect of baicalin on the growth of HeLa cells was measured by MTT assay, and cell proliferation and migration was analyzed by cell scratch assay. Morphological changes of apoptotic cells were viewed by the light microscope and electron microscop...
The objective of this study was to observe the apoptosis-inducing effect and mechanism of baicalin on human cervical cancer HeLa cells. The inhibitory effect of baicalin on the growth of HeLa cells was measured by MTT assay, and cell proliferation and migration was analyzed by cell scratch assay. Morphological changes of apoptotic cells were viewed by the light microscope and electron microscop...
When chick erythrocyte nuclei are introduced into the cytoplasm of HeLa cells they resume the synthesis of DNA. The reactivated nuclei synthesize DNA in a highly co-ordinated manner and essentially in synchrony with the HeLa nuclei. Asynchronous DNA synthesis is rare. The erythrocyte nuclei in the HeLa cytoplasm respond to the signals which regulate DNA synthesis in the same way as the HeLa nuc...
Reactive oxygen species (ROS) act as a mediator of ionizing radiation-induced cellular damage. Previous studies have indicated that MnSOD (SOD2) plays a critical role in protection against ionizing radiation in mammalian cells. In this study, we constructed two types of stable HeLa cell lines overexpressing SOD2, HeLa S3/SOD2 and T-REx HeLa/SOD2, to elucidate the mechanisms underlying the prote...
Cells are complex systems whose interaction with nanocarriers, i.e., liposomes, continuously under investigation to improve drug uptake. Model membranes can facilitate the understanding of processes involved in fusion or endocytosis. In this work, we engineered two different lipid model membranes, vesicles and supported bilayers (SLBs), mimicking composition HeLa cell plasma membrane. We charac...
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