نتایج جستجو برای: mirna 155

تعداد نتایج: 36150  

2013
Sylvia T. Cheung Eva Y. So David Chang Andrew Ming-Lum Alice L-F. Mui

The anti-inflammatory cytokine interleukin-10 (IL-10) is essential for attenuating the inflammatory response, which includes reducing the expression of pro-inflammatory microRNA-155 (miR-155) in lipopolysaccharide (LPS) activated macrophages. miR-155 enhances the expression of pro-inflammatory cytokines such as TNFα and suppresses expression of anti-inflammatory molecules such as SOCS1. Therefo...

Journal: :Cancer biology & therapy 2011
Imran A Babar Jennifer Czochor Allison Steinmetz Joanne B Weidhaas Peter M Glazer Frank J Slack

miR-155 is a prominent microRNA (miRNA) that regulates genes involved in immunity and cancer-related pathways. miR-155 is overexpressed in lung cancer, which correlates with poor patient prognosis. It is unclear how miR-155 becomes increased in lung cancers and how this increase contributes to reduced patient survival. Here, we show that hypoxic conditions induce miR-155 expression in lung canc...

Journal: :Annals of the Rheumatic Diseases 2021

Background: Epigenetic factors such as non-coding RNA (miRNA) have been shown to be deregulated in Systemic Lupus Erythematosus (SLE). In mouse models, different miRNAs associated with lupus nephritis (LN), one of the most severe manifestations disease 1 . Objectives: To evaluate expression miR-155 and miR-34a renal tissues biomarkers organ involvement inflammatory tissue activity patients LN. ...

Journal: :Cancer research 2012
Juan R Cubillos-Ruiz Jason R Baird Amelia J Tesone Melanie R Rutkowski Uciane K Scarlett Ana L Camposeco-Jacobs Jorge Anadon-Arnillas Noah M Harwood Murray Korc Steven N Fiering Lorenzo F Sempere Jose R Conejo-Garcia

Modulating the activity of miRNAs provides opportunities for novel cancer interventions. However, low bioavailability and poor cellular uptake are major challenges for delivering miRNA mimetics specifically to tumor cells. Here, we took advantage of the spontaneous enhanced endocytic activity of ovarian cancer-associated dendritic cells (DC) to selectively supplement the immunostimulatory miRNA...

2012
Jingjing Li Yu Liu Xiaofeng Xin Taehyung Simon Kim Eduardo Aguiar Cabeza Jie Ren Rasmus Nielsen Jeffrey L. Wrana Zhaolei Zhang

MicroRNA (miRNA)-mediated gene regulation is of critical functional importance in animals and is thought to be largely constrained during evolution. However, little is known regarding evolutionary changes of the miRNA network and their role in human evolution. Here we show that a number of miRNA binding sites display high levels of population differentiation in humans and thus are likely target...

2014
Dong Lu Rinako Nakagawa Sandra Lazzaro Philipp Staudacher Cei Abreu-Goodger Tom Henley Sara Boiani Rebecca Leyland Alison Galloway Simon Andrews Geoffrey Butcher Stephen L. Nutt Martin Turner Elena Vigorito

A single microRNA (miRNA) can regulate the expression of many genes, though the level of repression imparted on any given target is generally low. How then is the selective pressure for a single miRNA/target interaction maintained across long evolutionary distances? We addressed this problem by disrupting in vivo the interaction between miR-155 and PU.1 in mice. Remarkably, this interaction pro...

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