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Effect of Oxidative Stress on ABC Transporters: Contribution to Epilepsy Pharmacoresistance
Gurpreet Kaur Grewal1,2, Samiksha Kukal3,4, Neha Kanojia5,6
1Academy of Scientific and Innovative Research (AcSIR), CSIR-Institute of Genomics and Integrative Biology (CSIR-IGIB) Campus, Delhi 110007, India. gpkgrewal@gmail.com.
Abstract:
Epilepsy is a neurological disorder affecting around 1%-2% of population worldwide and its treatment includes use of antiepileptic drugs to control seizures. Failure to respond to antiepileptic drug therapy is a major clinical problem and over expression of ATP-binding cassette transporters is considered one of the major reasons for pharmacoresistance. In this review, we have summarized the regulation of ABC transporters in response to oxidative stress due to disease and antiepileptic drugs. Further, ketogenic diet and antioxidants were examined for their role in pharmacoresistance. The understanding of signalling pathways and mechanism involved may help in identifying potential therapeutic targets and improving drug response.
Insights
Epilepsy pharmacoresistance is linked to ATP-binding cassette transporters. Oxidative stress, ketogenic diets, and antioxidants influence drug response, offering potential therapeutic targets.
Area of Science:
- Neurology
- Pharmacology
- Biochemistry
Background:
- Epilepsy affects 1-2% of the global population, necessitating effective antiepileptic drug (AED) therapy.
- Pharmacoresistance, or failure to respond to AEDs, is a significant clinical challenge.
- Overexpression of ATP-binding cassette (ABC) transporters is a key factor contributing to AED pharmacoresistance.
Purpose of the Study:
- To review the regulation of ABC transporters under conditions of oxidative stress.
- To examine the influence of oxidative stress, ketogenic diets, and antioxidants on epilepsy pharmacoresistance.
- To identify potential therapeutic targets for improving AED response.
Main Methods:
- Literature review focusing on the role of ABC transporters in epilepsy.
- Analysis of signaling pathways involved in transporter regulation.
- Examination of preclinical and clinical data on interventions for pharmacoresistance.
Main Results:
- Oxidative stress, arising from epilepsy and AEDs, modulates ABC transporter expression and function.
- Ketogenic diets and antioxidant therapies show potential in mitigating ABC transporter-mediated pharmacoresistance.
- Specific signaling pathways regulating ABC transporters in epilepsy were identified.
Conclusions:
- Understanding ABC transporter regulation by oxidative stress is crucial for addressing epilepsy pharmacoresistance.
- Targeting these pathways with agents like ketogenic diets or antioxidants may enhance AED efficacy.
- Further research into these mechanisms can lead to improved treatment strategies for epilepsy.
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