Evaluation of sensitivity and specificity of urine survivin as a new molecular marker in diagnosis of bladder tumorsSeyed Javad
Author(s):
Abstract:
Bladder cancer is one of the most common forms of cancers in the world. The current gold standards for its diagnosis are cystoscopy and urine cytology. Cystoscopy, a naked eye assessment of the bladder, is invasive, uncomfortable and costly with a great deal of personal variability in its results; while urine cytology has high specificity but low sensitivity, particularly for low-grade lesions. Therefore, there is a need for a molecular tumor marker assay capable of detecting bladder cancer with high sensitivity and specificity. A growing list of tumor markers in urine has been introduced so far, but neither of them has been able to replace the current diagnostic methods. Survivin, an inhibitor of apoptosis (IAP) capable of regulating both cell proliferation and apoptosis, has been recently defined as a universal tumor antigen and as the fourth most significant transcript expressed in human tumors. It has been reported to have 100% sensitivity and 95% specificity for detection of bladder cancer. In the present study, the sensitivity and specificity of survivin as a tumor marker in detecting new and recurrent cases of bladder cancer has been evaluated by nested RT-PCR technique. Our results revealed that survivin could be detected in most patients (11/13, sensitivity=0.84) as well as some healthy volunteers with no obvious sign of bladder cancer (6/13, specificity=0.53). Also, in this work, for the first time, the presence of two alternatively spliced variants of survivin (survivin-2B and survivin-DEx3) urine is being reported. Interestingly, the presence of survivin-DEx3 was better correlated with malignant lesions of bladder compared to the survivin expression (sensitivity=0.84, specificity=0.92).
Language:
English
Published:
Iranian Journal of Biotechnology, Volume:3 Issue: 3, Summer 2005
Page:
163
magiran.com/p616281
دانلود و مطالعه متن این مقاله با یکی از روشهای زیر امکان پذیر است:
اشتراک شخصی
با عضویت و پرداخت آنلاین حق اشتراک یکساله به مبلغ 1,390,000ريال میتوانید 70 عنوان مطلب دانلود کنید!
اشتراک سازمانی
به کتابخانه دانشگاه یا محل کار خود پیشنهاد کنید تا اشتراک سازمانی این پایگاه را برای دسترسی نامحدود همه کاربران به متن مطالب تهیه نمایند!
توجه!
- حق عضویت دریافتی صرف حمایت از نشریات عضو و نگهداری، تکمیل و توسعه مگیران میشود.
- پرداخت حق اشتراک و دانلود مقالات اجازه بازنشر آن در سایر رسانههای چاپی و دیجیتال را به کاربر نمیدهد.
In order to view content subscription is required
Personal subscription
Subscribe magiran.com for 70 € euros via PayPal and download 70 articles during a year.
Organization subscription
Please contact us to subscribe your university or library for unlimited access!