Research Background
Study Overview
A recent study published in Archives of Toxicology, titled “Trichothecene mycotoxin-induced ribotoxic stress activates histone gene transcription,” investigates the cellular responses triggered by trichothecene mycotoxins produced by Fusarium fungi.
Trichothecene mycotoxins, including DON and HT2, represent an important concern for global food and feed safety. By targeting ribosomes and inhibiting protein synthesis, these toxins can induce pronounced cellular stress responses.
Study Design
Time-Course Transcriptomic Profiling
In this study, researchers used V79 lung fibroblasts and performed time-course RNA sequencing from 15 minutes to 24 hours to characterize dynamic transcriptomic changes following toxin exposure.
Research Highlights
Key Findings
Rapid Activation of a Stress-Signaling Pathway
Short-term toxin exposure triggered transient activation of the p38–Fos/Jun MAP kinase stress pathway, revealing an immediate cellular response to ribotoxic stress.
Strong Upregulation of Histone Genes
The rapid stress response was accompanied by strong upregulation of histone genes, which are typically associated with cell cycle entry.
Distinct Responses During Longer-Term Exposure
In contrast to the early response, long-term exposure induced transcriptomic changes more specifically associated with translation inhibition.
Research Significance
Implications for Mycotoxin Research and Detection
These findings provide new insights into the dynamic cellular stress programs activated by trichothecene mycotoxins and may contribute to the development of new approaches for toxin detection, including potential biosensor applications.
BMKGENE Contribution
Supporting Time-Course Transcriptomic Analysis
BMKGENE supported this study by providing transcriptome sequencing and bioinformatics analysis services.
Transcriptome Sequencing · Bioinformatics Analysis
Original Publication
Kolb, A. F., Popova, V., & Petrie, L. Trichothecene mycotoxin-induced ribotoxic stress activates histone gene transcription. Archives of Toxicology 100(7), 3185–3197 (2026). DOI: 10.1007/s00204-026-04375-2.
Post time: Sep-18-2026
