نتایج جستجو برای: mir microrna

تعداد نتایج: 71970  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم پزشکی 1394

سلولهای t تنظیمی در هموستاز ایمنی و تحمل محیطی نقش مهمی را ایفاء می¬کنند. اخیراً micrornaها را نیز در بیماریهای خودایمن دخیل دانسته¬اند. هدف از این مطالعه، بررسی فراوانی و عملکرد سلولهای treg و بیان چند microrna منتخب در سلولهای treg بیماران کولیت اولسر درمان¬نشده با بیماری فعال بود. 32 فرد بیمار و 31 فرد سالم در این مطالعه گنجانده شدند. فراوانی سلولهای treg با فلوسایتومتری و فعالیت سرکوبگری آنه...

2012
Thomas Laurent Yutaro Kataoka Satoru Kobayashi Misaki Ando Seishi Nagamori Hiroaki Oda

The induction mechanism of HNF-4α by spherical cell shape in human hepatoma cells, FLC-4, was investigated. To get insight into the induction mechanism of HNF-4α in three-dimensional FLC-4 cells, mRNA microarray analysis was performed. The gene expression related to drug metabolism and nuclear receptors, such as LXRα, was elevated in spherical FLC-4 cells. We found the first time that the expre...

2018
Kirsten Lindner Ann-Kathrin Eichelmann Christiane Matuszcak Damian James Hussey Jörg Haier Richard Hummel

BACKGROUND Resistance towards chemotherapy is a major obstacle in the treatment of esophageal squamous cell carcinoma (ESCC). We investigated the role of specific microRNAs in chemotherapy resistance and tumor biology. METHODS We selected three microRNAs from characteristic microRNA signatures of resistant ESCC (hsa-miR-125a-5p, hsa-miR-130a-3p, hsa-miR-1226-3p), and hsa-miR-148a-3p. Effects ...

2013
Xiao-Ying Huang Jin-Guang Yao Hong-Dong Huang Chao Wang Yun Ma Qiang Xia Xi-Dai Long

MicroRNA-429 (miR-429) may modify the development and progression of cancers; however, the role of this microRNA in the hepatocellular carcinoma (HCC) has not been well elaborated. Here, we tested miR-429 expression in 138 pathology-diagnosed HCC cases and SMMC-7721 cells. We found that miR-429 was upregulated in HCC tumor tissues and that the high expression of miR-429 was significantly correl...

Journal: :Genetics and molecular research : GMR 2015
G Q Zhou H Meng J R Wang F X Sun X J Wang R B Wang X B Wang

Genetic mutations in microRNA gene can alter expression, which may interact to increase the risk of developing various diseases, including hepatitis B. However, published results are inconclusive or ambiguous. The aim of this review and meta-analysis is to more precisely estimate the association between polymorphisms in microRNA genes and hepatitis B risk. A digital search was performed of the ...

2015
Ali A Dabaja Anna Mielnik Brian D Robinson Matthew S Wosnitzer Peter N Schlegel Darius A Paduch

BACKGROUND To examine human microRNA expression in fertile men and subsequently to compare expression patterns of miRNAs in fertile and infertile men, specifically men with Sertoli Cell Only (SCO) histopathology. METHODS Testicular tissues from men with azoospermia and SCO, as well as those of men with normal spermatogenesis, were analyzed. MicroRNA was isolated using the miRCURY™ RNA Purific...

Journal: :Genetics 2013
Péter Vilmos Agnes Bujna Milán Szuperák Zoltán Havelda Éva Várallyay János Szabad Lucie Kucerova Kálmán Somogyi Ildikó Kristó Tamás Lukácsovich Ferenc Jankovics László Henn Miklós Erdélyi

The first microRNAs were discovered some 20 years ago, but only a small fraction of the microRNA-encoding genes have been described in detail yet. Here we report the molecular analysis of a computationally predicted Drosophila melanogaster microRNA gene, mir-282. We show that the mir-282 gene is the source of a 4.9-kb-long primary transcript with a 5' cap and a 3'-poly(A) sequence and a mature ...

2009
Thian-Sze Wong Wai-Kuen Ho Jimmy Yu-Wai Chan Raymond Wai-Man Ng William Ignace Wei

Human microRNA 184 (miR-184) is overexpressed in squamous cell carcinoma (SCC) of the tongue. In vitro inhibition of miR-184 levels could induce apoptosis and hinder proliferation of tongue SCC cells. Patients with tongue SCC have high plasma miR-184 levels. Plasma miR-184 is likely associated with the tumor load. Surgical removal of the primary tumor reduced plasma miR-184 levels significantly...

Journal: :international journal of molecular and cellular medicine 0
faezeh azizi department of medical genetics, faculty of medicine, shahidbeheshtiuniversity of medical sciences,tehran, iran. soraya saleh gargari feto-maternal unit, shohadayetajrish hospital, shahidbeheshti, university of medical sciences, tehran, iran. sedigheh asadi shahmirzadi feto-maternal unit, mahdiyeh hospital, shahidbeheshti, university of medical sciences, tehran, iran. fatemeh dodange feto-maternal unit, mahdiyeh hospital, shahidbeheshti, university of medical sciences, tehran, iran. vahid amiri school of allied medical sciences,shahidbeheshti, university of medical sciences, tehran, iran. reza mirfakhraie department of medical genetics, faculty of medicine, shahidbeheshtiuniversity of medical sciences,tehran, iran.

it has been well documented that preeclampsia (pe) has a common etiological background, but little is known about its linkage at the molecular level.non- coding rnas are critical posttranscriptional regulators ofgene expression.  this study was performed to determine whether peis associated with alterations in placental non-codingrnas expression. microrna(mir)-155-5p and long non-coding rna (ln...

2011
Xiaogang Tan Wenyan Qin Liang Zhang Jie Hang Baozhong Li Cuiyan Zhang Junting Wan Fang Zhou Kang Shao Yimin Sun Jianping Wu Xun Zhang Bin Qiu Ning Li Susheng Shi Xiaoli Feng Shouhua Zhao Zhen Wang Xiaohong Zhao Zhaoli Chen Keith Mitchelson Jing Cheng Yong Guo Jie He

Purpose: Recent studies have suggested that microRNA biomarkers could be useful for stratifying lung cancer subtypes, but microRNA signatures varied between different populations. Squamous cell carcinoma (SCC) is one major subtype of lung cancer that urgently needs biomarkers to aid patient management. Here, we undertook the first comprehensive investigation on microRNA in Chinese SCC patients....

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