Analysis of survivin, XIAP and FoxM1 as potential chemoresistance factors in breast cancer cells

نویسندگان

  • Gabriela N Moraes
  • Flavia C Vasconcelos
  • Deborah Delbue
  • Karina L Silva
  • Giuliana P Mognol
  • João P Viola
  • Raquel C Maia
چکیده

Materials and methods Human breast carcinoma cell lines MCF7 (wild-type p53) and MDA-MB-231 (mutant p53) were exposed to dox and citotoxicity was assessed through the MTT assay. Apoptosis was detected through analysis of flow cytometry DNA content and caspases-3, -7 and -9 levels. Survivin, XIAP, p53 and FoxM1 levels were assessed by Western blotting and Survivin and XIAP mRNA levels, by Real Time PCR. Transfections with the Survivin-encoding plasmid and siRNA against Survivin and XIAP were performed using Lipofectamine reagent.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

مطالعه‌ی بیان ژنSurvivin و واریانت‌های پیرایشی ΔEx3٬ 2b و 3b آن به عنوان تومور مارکرهای تشخیصی در سرطان پستان

Introduction: Survivin is a new member of the Inhibitor Apotosis Protein family (IAP) which plays an important role in the regulation of both cell cycle and apoptosis. Its distinct expression in tumor cells as compared to normal adult cells introduces Survivin as the fourth transcriptom demonstrated in tumors. Breast cancer is the most common malignancy among women and scientist`s efforts to cl...

متن کامل

مطالعه پلی‌مورفیسم پروموتر ژن (SNP-31G/C)Survivinدر مبتلایان به سرطان پستان (در شمال‌غرب کشور)

Introduction: Survivin gene, as an apoptosis inhibitor, plays an important role in development of breast cancer. The differential expression of survivin in cancer versus normal adult cells as well as an association between high expression of survivin and aggressive tumors has led to use of survivin as a molecular marker for diagnosis and prognosis of tumors. The underlying mechanism of survivin...

متن کامل

The effect of podophyllotoxin as an inducer of apoptosis using molecular docking method

Background and aim: Podophyllotoxin is used as one of the main treatments for genital warts. It is a precursor of etoposide and teniposide, which is used in the treatment of various cancers. Despite a large number of cancer studies, the exact mechanism of podophyllotoxin remains unknown. Chemotherapy drugs reduce cancer cells by inducing apoptosis. The regulation of the apoptotic pathway has be...

متن کامل

YM155 down-regulates survivin and XIAP, modulates autophagy and induces autophagy-dependent DNA damage in breast cancer cells.

BACKGROUND AND PURPOSE The aim of this study was to determine the potency and molecular mechanism of action of YM155, a first-in-class survivin inhibitor that is currently under phase I/II clinical investigations, in various drug-resistant breast cancers including the oestrogen receptor positive (ER(+) ) tamoxifen-resistant breast cancer and the caspase-3-deficient breast cancer. EXPERIMENTAL...

متن کامل

Change in the Expression of BAK، FAS، BAX، TNF-A، BCL-2 and Survivin Apoptosis Genes of the Human Breast Adenocarcinoma Cells (MCF-7) by Staphylococcal Enterotoxin B

Introduction: Breast cancer is one of the most prevalent malignancies among women. Patients whose suffering from this condition, as a result of the use of conventional therapies often have a poor response to treatment and the relapse among them is frequent. In this study, the effects of staphylococcal enterotoxin type B on BAK، FAS، BAX، TNF-a، BCL-2 و Survivin genes expression in human breast ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره 7  شماره 

صفحات  -

تاریخ انتشار 2013