نتایج جستجو برای: p53

تعداد نتایج: 42422  

Journal: :iranian journal of medical sciences 0
parisa shahnazari monoclonal antibody research centre, avicenna research institute, acecr, tehran, iran kourosh sayehmiri psychosocial injuries research centre, ilam university of medical sciences, ilam, iran zarrin minuchehr national institute of genetic engineering and biotechnology, nigeb, tehran, iran ardavan parhizkar digestive disease research centre, shariati hospital, tehran university of medical science, tehran, iran hossein poustchi digestive disease research centre, shariati hospital, tehran university of medical science, tehran, iran ghodratollah montazeri digestive disease research centre, shariati hospital, tehran university of medical science, tehran, iran

background: the ability of tumour suppressor protein p53 (p53) to regulate cell cycle processes can be modulated by hepatitis b virus (hbv). while preliminary evidences indicates the involvement of protein-x of hbv (hbx) in altering p53 dna binding, no further data have been accumulated for the significance of serum p53 in chronic hepatitis b virus infected patients. methods: 72 non-cirrhotic a...

شیخ‌پور, رباب , محیطی اردکانی , جواد ,

 Background & Aims: Breast cancer is the most common cancer in women. Nearly 50% of breast cancers are dependent to sex hormones, and the effects of these hormones are mediated by their binding to specific receptors. Also p53 protein is mutated in about half of cancers including breast cancer and high level of p53 protein is a common feature of many human malignant cancers. Given that T47D cell...

Majid Mojarrad Mohammad Hasanzadeh_Nazarabadi Sahar Shekouhi Tayebeh Hamzehloie

The gene TP53 (also known as protein 53 or tumor protein 53), encoding transcription factor P53, is mutated or deleted in half of human cancers, demonstrating the crucial role of P53 in tumor suppression. There are reports of nearly 250 independent germ line TP53 mutations in over 100 publications. The P53 protein has the structure of a transcription factor and, is made up of several domains. T...

p53 is a key tumor suppressor gene that is targeted for inactivation during human tumorigenesis. In this study, we produced and characterized polyclonal antihuman p53 antibody. The cDNA encoding the completehuman p53 protein was cloned into pGEX-4T-1 and expressed in Escherichia coli as a fusion protein with Schistosoma japonicum glutathione S-transferase (GST). The rabbits were immunized...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده علوم انسانی و اجتماعی 1389

mdm2 آنکوژنی می باشد که پروتئین کد شده توسط آن یک فسفو پروتئین است که با عملکرد یوبی کوئیتین لیگازی باعث ممانعت از فعالیت p53 و پیش برندگی تخریب آن می باشد. p53 یک مهار کننده سرطان می باشد که فعالیت آن در بسیاری از سرطان های انسانی به علت جهش در خود ژن p53 یا انحرافاتی در بیان پروتئین های عمل کننده در مسیر p53 از قبیل mdm2 ممکن است از بین رفته یا به شدت تضعیف گردد. اخیرا یک جانشینی t به g در پر...

Journal: :Journal of Medicinal Chemistry 2021

Inhibition of murine double minute 2 (MDM2)-p53 protein-protein interaction with small molecules has been shown to reactivate p53 and inhibit tumor growth. Here, we describe rational, structure-guided, design novel isoindolinone-based MDM2 inhibitors. X-ray crystallography, quantum mechanics ligand-based design, metabolite identification all contributed toward the discovery potent in vitro vivo...

رحیم گل محمدی, مهدی نیک بخت

زمینه و هدف: سرطان کولورکتال یکی از مهم ترین سرطانهای شایع جهان میباشد. میزان شیوع سرطان کولورکتال بسته به ناحیه جغرافیایی متفاوت میباشد. در سرطان کولورکتال عوامل مختلف محیطی، ژنتیکی و عادت های غذایی نقش دارند. ژن P53 مهم ترین ژن مهارکننده تومور می‌باشد، میزان موتاسیون اکسون 6 ژن P53 با بیان پروتئین فوق در نمونه های سرطانی کولورکتال در نواحی مختلف، متفاوت گزارش شده است. هدف از این مطالعه تعیین ...

Objective(s): Glioblastoma is the most lethal tumor of the central nervous system. Here, we aimed to evaluate the effects of exogenous delivery of p53 and a nanoformulation of curcumin called dendrosomal curcumin (DNC), alone and in combination, on glioblastoma tumor cells. Materials and Methods: MTT assay was exploited to measure the viability of U87-MG cells against DNC treatment. Cells were ...

Alireza Abdollahi, Issa Jahanzad Sara Sheikhbahaei Somaye Safinejad

  Background and Objectives: The most prevalent malignancy among women is known to be breast cancer (BC). Several factors contribute to determining tumor prognosis and treatment strategies. In this study, the frequency and relevance of these factors are discussed. Materials and Methods: This cross-sectional study was carried out on 214 patients with BC, who referred to the Cancer Institute of...

Journal: :مجله دانشگاه علوم پزشکی کرمانشاه 0
rahim golmohamadi department of anatomical medicine, sabzevar university of medical sciences mehdi nikbakht department of anatomical medicine, isfahan university of medical sciences

introduction: colorectal cancer (crc) is one of the most prevalent cancers in the world. genetic disorders and dietary habits play a part in crc. the most important cancer suppressor gene is p53. different mutations rates in 7th exon of p53 gene are reported in different areas  which may have a relationship with prognosis of crc. this study examines the relationship between mutation in 7th exon...

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