Related Experiment Video
Updated: Jul 7, 2025
Author Spotlight: Tracing the Ferroptotic Signatures and Cell Death Dynamics in Medulloblastoma for Advanced Therapeutics
Published on: March 15, 2024
T-2 toxin-induced testicular impairment by triggering oxidative stress and ferroptosis
Jun He1, Hong Jin1, Jiabin Guo1
1Chinese PLA Center for Disease Control and Prevention, Beijing, China.
Abstract:
T-2 toxin is a trichothecene mycotoxin of significant danger to humans and animals. Its impact on reproductive toxicity is attributed to oxidative stress, which ultimately leads to cell death. Ferroptosis is a programmed cell death that characterized by lipid peroxidation. This study aimed to investigate the toxic effects of T-2 toxin on mouse testis and the potential mechanism of T-2 toxin-induced ferroptosis. T-2 toxin significantly altered the morphology of the testis and decreased testosterone level, sperm concentration, and increased sperm malformation rate, as well as induced oxidative damage with reactive oxygen species and malondialdehyde accumulated, and activity of superoxide dismutase, glutathione peroxidase decreased. Additionally, T-2 toxin induced ferroptosis by accumulating iron ions, increasing prostaglandin endoperoxide synthase 2, downregulating glutathione peroxidase 4 and ferritin heavy chain 1, as well as manifesting ferroptotic morphological alterations, ultimately leading to testicular impairment. Administration of ferroptosis inhibitor liproxstatin-1 or antioxidant resveratrol effectively mitigated the T-2 toxin-induced ferroptosis and testicular injury. These findings provided novel insights into the fundamental mechanism of T-2 toxin-induced cell death and furnished further proof of the potential therapeutic effect in addressing T-2 toxin-induced testicular impairment.
Insights
T-2 toxin causes reproductive harm through oxidative stress and ferroptosis, a cell death pathway. Inhibiting ferroptosis or using antioxidants can protect against T-2 toxin-induced testicular damage.
Area of Science:
- Toxicology
- Reproductive Biology
- Cell Death Mechanisms
Background:
- T-2 toxin, a trichothecene mycotoxin, poses risks to humans and animals.
- Reproductive toxicity is linked to oxidative stress and cell death.
- Ferroptosis is a specific type of programmed cell death characterized by lipid peroxidation.
Purpose of the Study:
- To investigate the toxic effects of T-2 toxin on mouse testes.
- To elucidate the mechanism of T-2 toxin-induced ferroptosis in testicular cells.
Main Methods:
- Morphological and biochemical analysis of mouse testes exposed to T-2 toxin.
- Assessment of oxidative stress markers (ROS, MDA, SOD, GPx).
- Evaluation of ferroptosis markers (iron accumulation, PTGS2, GPX4, FTH1) and ferroptotic morphology.
- Treatment with ferroptosis inhibitor (Liproxstatin-1) and antioxidant (resveratrol).
Main Results:
- T-2 toxin induced testicular morphological changes, decreased testosterone and sperm count, and increased sperm malformation.
- Oxidative damage was evident, with increased ROS/MDA and decreased antioxidant enzyme activity.
- T-2 toxin triggered ferroptosis by altering iron homeostasis, upregulating PTGS2, downregulating GPX4 and FTH1, and causing ferroptotic morphological changes.
- Liproxstatin-1 and resveratrol administration ameliorated T-2 toxin-induced ferroptosis and testicular injury.
Conclusions:
- T-2 toxin induces testicular impairment through ferroptosis and oxidative stress.
- Ferroptosis inhibition and antioxidant treatment show therapeutic potential against T-2 toxin toxicity.
- This study provides insights into T-2 toxin's mechanism of cell death and potential interventions.
Related Concept Videos
01:16Necrosis
Morphological Manifestations of Necrosis
Necrotic cells show different types of morphological appearance depending on the type of tissue and infection. In coagulative necrosis, cells become...
01:46Electron Transport Chain: Complex I and II
ROS generation is regulated and maintained at moderate levels necessary...