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Morphological alterations induced by patulin on cultured hepatoma cells
Abstract:
Patulin is a mycotoxin produced by various Penicillium, Aspergillus and Byssochlamys species. To evaluate its inhibitory effect on cells, hepatoma tissue culture cells in suspension were incubated in presence of 30 microM of patulin for 7 h and investigated by transmission and scanning electron microscopy. By transmission electron microscopy, the most significant difference observed between treated and control cells was the disorganization of the cytoplasmic microfilaments in the treated cells. The disappearance of superficial membrane microvilli which contain microfibrillar material was visualized by scanning electron microscopy; the cells also presented protrusions. The effect of this toxin on the cytoskeleton can be compared to that exerted by colchicine or by cytochalasins.
Insights
Patulin, a mycotoxin, disrupts the cell cytoskeleton. This toxin causes disorganization of cytoplasmic microfilaments and loss of microvilli in hepatoma cells, impacting cell structure.
Area of Science:
- Cell Biology
- Toxicology
- Mycotoxicology
Background:
- Patulin is a mycotoxin produced by several fungal species.
- Mycotoxins can pose risks to cellular health and function.
Purpose of the Study:
- To investigate the cellular effects of patulin exposure.
- To evaluate the impact of patulin on hepatoma cell structure and cytoskeleton.
Main Methods:
- Hepatoma tissue culture cells were exposed to 30 microM patulin for 7 hours.
- Transmission and scanning electron microscopy were used to examine cellular changes.
Main Results:
- Patulin exposure led to disorganization of cytoplasmic microfilaments in treated cells.
- Scanning electron microscopy revealed loss of membrane microvilli and cell protrusions.
Conclusions:
- Patulin significantly affects the cytoskeleton of hepatoma cells.
- The observed effects are comparable to those induced by known cytoskeleton-disrupting agents like colchicine and cytochalasins.