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Tuberous Sclerosis Complex: An updated in the treatment of epilepsy for early careers
Kette D Valente1, Leticia Brito Sampaio2, Silvia Vincentiis2
1Clinic Hospital of the University of São Paulo Medical School (HCFMUSP), Brazil; LIM 21 - Faculty of Medicine University of São Paulo (FMUSP), Brazil.
Abstract:
Tuberous Sclerosis Complex (TSC) is a rare autosomal dominant disorder that is characterized by multisystem involvement and significant neurological manifestations. TSC1 and TSC2 pathogenic variants lead to hyperactivation of the mammalian target of rapamycin (mTOR) pathway, which disrupts cellular growth and differentiation. Epilepsy, affecting 85-90% of individuals with TSC, often presents within the first year of life and is commonly resistant to conventional therapies. This paper provides a comprehensive overview of the diagnostic criteria, pathophysiology, and current treatment strategies for TSC-associated epilepsy, including pharmacological approaches such as vigabatrin, cannabidiol, and mTOR inhibitors, as well as non-pharmacological interventions such as ketogenic diet and epilepsy surgery. Preventive strategies, highlighted by robust trials, delay seizure onset and reduce its severity but have a limited impact on neurodevelopmental outcomes. Challenges include the heterogeneity of cortical tubers, suboptimal seizure control with existing therapies, and underutilization of neuropsychiatric care for TSC-associated neuropsychiatric disorders. Advances in biomarkers, precision medicine, and surgical techniques have paved the way for personalized treatment approaches. Future research providing earlier detection strategies and integrating therapies targeting both the neurological and behavioral dimensions of TSC is ongoing. By addressing these needs, clinicians and researchers can enhance the quality of life and developmental outcomes of individuals with TSC.
Insights
Tuberous Sclerosis Complex (TSC) epilepsy affects many and is hard to treat. New research explores personalized therapies to improve seizure control and neurodevelopmental outcomes in TSC patients.
Area of Science:
- Genetics and Neurology
- Rare Disease Research
Background:
- Tuberous Sclerosis Complex (TSC) is a genetic disorder affecting multiple systems, notably the brain.
- TSC causes epilepsy in 85-90% of individuals, often starting in infancy and resisting standard treatments.
- Pathogenic variants in TSC1/TSC2 genes activate the mTOR pathway, disrupting cell growth and leading to neurological issues.
Purpose of the Study:
- To provide a comprehensive overview of TSC-associated epilepsy.
- To discuss diagnostic criteria, pathophysiology, and current treatment strategies.
- To highlight challenges and future directions in managing TSC-related neurological and neuropsychiatric disorders.
Main Methods:
- Literature review of diagnostic criteria, pathophysiology, and therapeutic interventions for TSC-associated epilepsy.
- Analysis of pharmacological (vigabatrin, cannabidiol, mTOR inhibitors) and non-pharmacological (ketogenic diet, surgery) treatments.
- Examination of preventive strategies and their impact on seizure onset and neurodevelopmental outcomes.
Main Results:
- Epilepsy in TSC is common, early-onset, and treatment-resistant.
- Preventive strategies can delay seizures but have limited neurodevelopmental benefits.
- Challenges include tuber heterogeneity, suboptimal seizure control, and underutilized neuropsychiatric care.
Conclusions:
- Advances in biomarkers, precision medicine, and surgery offer personalized treatment options for TSC-associated epilepsy.
- Future research should focus on early detection and integrated therapies for neurological and behavioral aspects of TSC.
- Improving quality of life and developmental outcomes requires addressing current therapeutic and care gaps.
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