Cytotoxicity of phenothiazine derivatives associated with mitochondrial dysfunction: a structure-activity investigation.

Author: BettaninFernanda, CunhaRodrigo L O R, Homem-de-MelloPaula, NantesIseli L, Paredes-GameroEdgar J, RodriguesTiago, de FariaPriscila A

Paper Details 
Original Abstract of the Article :
Phenothiazine derivatives are neuroleptic drugs used in the treatment of schizophrenia and anxiety. Several side effects are described for these drugs, including hepatotoxicity, which may be related to their cytotoxic activity. Working with isolated rat liver mitochondria, we previously showed that ...See full text at original site
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引用元:
https://doi.org/10.1016/j.tox.2015.02.004

データ提供:米国国立医学図書館(NLM)

Unraveling the Cytotoxic Secrets of Phenothiazine Derivatives

My research interest lies in understanding the intricate mechanisms underlying cellular death. This study delves into the cytotoxic effects of phenothiazine derivatives, a class of drugs commonly used in the treatment of schizophrenia and anxiety. Researchers employed a structure-activity approach, using isolated rat liver mitochondria, to investigate how these drugs interact with the mitochondria, ultimately leading to cell death. They discovered that phenothiazine derivatives induce mitochondrial permeability transition, a crucial step in the cell death cascade. The study further examined the cytotoxicity of five phenothiazine derivatives in hepatoma tissue culture (HTC) cells, revealing that each derivative exhibited different cytotoxic potencies. Interestingly, the study found a strong correlation between the EC50 values for mitochondrial permeability transition and cell viability, suggesting that mitochondrial dysfunction plays a pivotal role in phenothiazine-induced cytotoxicity. These findings provide valuable insights into the specific structural features of phenothiazine derivatives that contribute to their cytotoxic activity, which is essential for understanding their potential side effects and developing safer drug formulations.

Phenothiazine Derivatives: A Tale of Two Potencies

The researchers observed that phenothiazine derivatives exhibited varying levels of cytotoxicity, with thioridazine, a piperidinic derivative, displaying the most potent cytotoxic effect. This finding suggests that the structural features of these derivatives play a significant role in their ability to induce cell death. Further investigation is required to elucidate the specific structural modifications that contribute to the differences in potency. This information could lead to the development of safer and more effective phenothiazine derivatives for therapeutic use.

Navigating the Sandstorm of Side Effects: Implications for Health

This study highlights the potential for phenothiazine derivatives to induce cell death, specifically through mitochondrial dysfunction. This knowledge is crucial for medical professionals to consider when prescribing these drugs, particularly for patients with pre-existing liver conditions or those who may be at risk of mitochondrial dysfunction. It is essential to monitor patients closely for signs of liver toxicity or other adverse effects. Further research is needed to explore the long-term consequences of mitochondrial dysfunction induced by phenothiazine derivatives and to develop strategies for mitigating these potential risks.

Dr. Camel's Conclusion

This study sheds light on the intricate mechanisms by which phenothiazine derivatives exert their cytotoxic effects. The findings emphasize the importance of understanding the structural-activity relationships of these drugs, as they may hold the key to developing safer and more effective treatments for psychiatric conditions. It reminds us that even seemingly innocuous variations in molecular structure can have significant consequences for cellular health. Just as the desert landscape can shift dramatically with subtle changes in wind patterns, so too can the delicate balance of life within our cells. By understanding these nuances, we can pave the way for more informed and safe therapeutic interventions.

Date :
  1. Date Completed 2015-06-15
  2. Date Revised 2015-03-13
Further Info :

Pubmed ID

25686698

DOI: Digital Object Identifier

10.1016/j.tox.2015.02.004

SNS
PICO Info
in preparation
Languages

English

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