Project description:To investigate the detailed molecular mechanisms for the regulatory role of iron in colorectal cancer, RNA-seq analysis was performed on RNA isolated from untreated control and deferoxamine treated human tumor colonoids.
Project description:We treated lymphoblast cells with the iron chelator deferoxamine (DFO) for 60 hours to determine if iron chelation would affect the levels of intron lariats.
Project description:Adipocyte differentiation has been shown to require iron, but the underlying mechanism remains elusive. Ferrous iron ion is known to function as a co-factor for alpha-ketoglutarate-dependent dioxygenases, including demethylases for histones, DNA, and RNA. Previously we reported several alpha-ketoglutarate-dependent histone demethylases as critical epigenetic regulators during adipogenesis. These lines of evidence led us to hypothesize that iron orchestrates epigenetic/epitranscriptional regulations during adipogenesis by controlling demethylation activities. In this study, we conducted genome-wide analysis on methylation landscapes of histones, DNA, and RNA in differentiation of 3T3-L1 pre-adipocytes. Using the iron chelator deferoxamine, we demonstrate here how dynamically methylation levels of histones, DNA, and RNA are regulated by iron during adipogenesis.
Project description:Adipocyte differentiation has been shown to require iron, but the underlying mechanism remains elusive. Ferrous iron ion is known to function as a co-factor for alpha-ketoglutarate-dependent dioxygenases, including demethylases for histones, DNA, and RNA. Previously we reported several alpha-ketoglutarate-dependent histone demethylases as critical epigenetic regulators during adipogenesis. These lines of evidence led us to hypothesize that iron orchestrates epigenetic/epitranscriptional regulations during adipogenesis by controlling demethylation activities. In this study, we conducted genome-wide analysis on methylation landscapes of histones, DNA, and RNA in differentiation of 3T3-L1 pre-adipocytes. Using the iron chelator deferoxamine, we demonstrate here how dynamically methylation levels of histones, DNA, and RNA are regulated by iron during adipogenesis.
Project description:Adipocyte differentiation has been shown to require iron, but the underlying mechanism remains elusive. Ferrous iron ion is known to function as a co-factor for alpha-ketoglutarate-dependent dioxygenases, including demethylases for histones, DNA, and RNA. Previously we reported several alpha-ketoglutarate-dependent histone demethylases as critical epigenetic regulators during adipogenesis. These lines of evidence led us to hypothesize that iron orchestrates epigenetic/epitranscriptional regulations during adipogenesis by controlling demethylation activities. In this study, we conducted genome-wide analysis on methylation landscapes of histones, DNA, and RNA in differentiation of 3T3-L1 pre-adipocytes. Using the iron chelator deferoxamine, we demonstrate here how dynamically methylation levels of histones, DNA, and RNA are regulated by iron during adipogenesis.
Project description:We found that iron chelation restored functional defects in aged HSC, including engraftment potential and platelet bias. To gain molecular insights into iron-dependent mechanism for sustaining HSC identity during aging, we performed Cellular Indexing of Transcriptomes and Epitopes by Sequencing (CITE-seq) with lineage (Lin)− Sca-1+ cKit+ (LSK) cells isolated from aged mice after long-term regimens with iron chelator Deferoxamine or vehicle control.
Project description:Firstly, cell senescence and anti-oxidant genes were down-regulated by iron deficient mice and iron-specific chelator deferoxamine (DFO) using a DNA microarray. Our data suggested that down-regulation of anti-oxidant genes and cell senescence gene induced oxidative stress in iron-deficient and -specific chelated condition.