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MetabolomicsAggressive breast cancers secrete heme metabolites to alter macrophage immune suppression and function
The heme catabolism pathway is often elevated in aggressive cancers; however, the impact of this pathway and some of its byproducts on the tumor microenvironment remain largely unknown. In human breast cancers, tumor expression of the heme catabolizing enzyme heme oxygenase-1 (HO-1/HMOX1) is positiv...
2026-04-24 | MTBLS14278 | MetaboLights
MetabolomicsViral-Induced Heme Accumulation Subverts TLR4bb-Mediated Antiviral Immunity by Triggering Gut Microbiota Dysbiosis, Metabolic Dysregulation, and Ferroptosis

This study identifies grass carp TLR4bb as a crucial hub coordinating antiviral immunity with heme metabolism, redox balance, and gut microbiota during GCRV-II infection. While TLR4bb recruits TIRAP/MyD88/TRIF to activate IFN signaling against the virus, its synergy with heme and viral sensing tr...

2026-01-23 | MTBLS13755 | MetaboLights
TranscriptomicsGATA-1 and heme regulate the erythroid cell transcriptome.
Alas2 gene encodes the rate-limiting enzyme in heme biosynthesis. CRISPR/Cas9-mediated ablation of two Alas2 intronic cis-elements strongly reduced GATA-1-induced Alas2 transcription, heme biosynthesis, and GATA-1 regulation of other vital constituents of the erythroid cell transcriptome. Bypassing ...
ORGANISM(S): Mus musculus 
2016-01-07 | E-GEOD-74371 | biostudies-arrayexpress
TranscriptomicsPorphyromonas gingivalis W50 Heme-excess vs Heme-limitation
Transcription profiling of P. gingivalis W50 grown in continuous culture under conditions of heme-excess and heme-limitation. Reference design (using Cy5 labelled genomic DNA as the reference) to compare two conditions: heme-excess vs heme-limitation. Three samples for each condition, independently...
ORGANISM(S): Porphyromonas gingivalis 
2010-05-16 | E-GEOD-13375 | biostudies-arrayexpress
TranscriptomicsHeme-based respiration of Leuconostoc gasicomitatum
Transcriptonal profiling of Leuconostoc gasicomitatum LMG18811T (wild type) grown in MRS medium with or without heme. Mutant LMG18811T::pSIP1333A (mutating cydB gene which is essential in the respiratory chain) grown in MRS with or without heme. Comparing mutant and wildtype with and without heme. ...
ORGANISM(S): Leuconostoc gasicomitatum LMG 18811 
2013-02-08 | E-GEOD-41281 | biostudies-arrayexpress
MetabolomicsSETD1A regulates transcriptional pause release of heme biosynthesis genes in leukemia
Not available
ORGANISM(S): Homo sapiens 
ST002323 | MetabolomicsWorkbench
TranscriptomicsGene expression data of endothelium exposed to heme
Sickle cell disease is characterized by hemolysis, vaso-occlusion and ischemia reperfusion injury. These events cause endothelial dysfunction and vasculopathies in multiple systems However, the lack of atherosclerotic lesions has led to the idea that there are adaptive mechanisms that protect the en...
ORGANISM(S): Homo sapiens 
2011-10-12 | E-GEOD-25014 | biostudies-arrayexpress
TranscriptomicsMicrobiota facilitates dietary heme-induced epithelial hyperproliferation and hyperplasia by breaking the mucus barrier
Colorectal cancer risk is associated with diets high in red meat. Heme, the pigment of red meat, induces cytotoxicity of colonic contents and elicits epithelial damage and compensatory hyperproliferation, leading to hyperplasia. Here we explore the possible causal role of the gut microbiota in heme-...
ORGANISM(S): Mus musculus 
2015-08-03 | E-GEOD-40670 | biostudies-arrayexpress
TranscriptomicsDietary heme alters microbiota and mucosa of mouse colon without functional changes in host-microbe cross-talk.
Colon cancer is a major cause of cancer deaths in Western countries and is associated with diets high in red meat. Heme, the iron-porphyrin pigment of red meat, induces cytotoxicity of gut contents which injures surface cells leading to compensatory hyperproliferation of crypt cells. This hyperproli...
ORGANISM(S): Mus musculus 
2012-12-19 | E-GEOD-40672 | biostudies-arrayexpress
TranscriptomicsAedes aegypti (Aag2) Cells: Control (CTR) vs. Heme-incubated / Control vs. Paraquat-incubated
In order to study heme-induced global transcriptional changes, we performed a transcriptome-wide analysis of heme influence on the A. aegypti cell line Aag2. As heme-mediated effects on gene expression are thought to be related to oxidative stress, we compared the transcriptional profiles of Aag2 ce...
ORGANISM(S): Aedes aegypti 
2016-07-29 | E-GEOD-71221 | biostudies-arrayexpress
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