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Background: Tuberous sclerosis complex is a genetic disorder caused by mutations in the TSC1 or TSC2 genes, affecting multiple systems. These genes produce proteins that regulate mTORC1 activity, essential for cell function and metabolism. While mTOR inhibitors have advanced treatment, maintaining long-term therapeutic success is still challenging. For over 20 years, significant progress has linked TSC1 or TSC2 gene mutations in stem cells to tuberous sclerosis complex symptoms.
Methods: A comprehensive review was conducted using databases like Web of Science, Google Scholar, PubMed, and Science Direct, with search terms such as "tuberous sclerosis complex," "TSC1," "TSC2," "stem cell," "proliferation," and "differentiation." Relevant literature was thoroughly analyzed and summarized to present an updated analysis of the TSC1-TSC2 complex's role in stem cell fate determination and its implications for tuberous sclerosis complex.
Results: The TSC1-TSC2 complex plays a crucial role in various stem cells, such as neural, germline, nephron progenitor, intestinal, hematopoietic, and mesenchymal stem/stromal cells, primarily through the mTOR signaling pathway.
Conclusions: This review aims shed light on the role of the TSC1-TSC2 complex in stem cell fate, its impact on health and disease, and potential new treatments for tuberous sclerosis complex.
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http://dx.doi.org/10.1186/s13287-025-04170-3 | DOI Listing |
Front Immunol
September 2025
The Affiliated People's Hospital of Fujian University of Traditional Chinese Medicine, College of Integrative Medicine, Fujian-Macao Science and Technology Cooperation Base of Traditional Chinese Medicine-Oriented Chronic Disease Prevention and Treatment, Fujian-Hong Kong-Macau-Taiwan Collaborative
Death-associated protein kinase 1 (DAPK1) is a Ca/calmodulin-regulated serine/threonine kinase that orchestrates a wide array of cellular activities. It is intricately regulated through multiple mechanisms, including intramolecular signaling and interactions with other proteins, such as kinases and phosphatases. DAPK1 plays a pivotal role in regulating various biological processes, including apoptosis and autophagy, and is implicated in pathogenesis of several disorders, such as cancer, stroke and brain damage, neurodegenerative and within their kinase domains.
View Article and Find Full Text PDFbioRxiv
August 2025
Department of Neuroscience and Physiology.
Cannabidiol (CBD) decreases seizures in patients with severe pediatric-onset epilepsies including Dravet, Lennox-Gastaut, and Tuberous Sclerosis syndromes. However, the effects of CBD on neuronal activity and circuits remain obscure. In the mouse hippocampus, we found that CBD causes a GPR55-independent decrease in CA1 pyramidal neuron firing frequency and a GPR55-dependent reduction in CA3 to CA1 hippocampal activity propagation.
View Article and Find Full Text PDFLife Sci Alliance
November 2025
Department of Oncogene Research, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
The mammalian target of rapamycin complex 1 (mTORC1) signaling pathway, composed of amino acid (AA)-sensing (Ragulator/LAMTOR-Rag) and growth factor (GF)-sensing (AKT-TSC1/2-Rheb) axes, pivotally regulates intracellular anabolism and catabolism. mTORC1 deregulation is associated with various metabolic diseases, including cancer and diabetes. As a key regulator of nutrient signaling, mTORC1 integrates a variety of nutrient signals.
View Article and Find Full Text PDFJ Cell Immunol
January 2025
University of Cincinnati College of Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, PO Box 45267-0564, Cincinnati, OH 45267, USA.
Lymphangioleiomyomatosis (LAM) is a rare, female-dominated pulmonary cystic disease. Cysts that develop in LAM are characterized by the presence of smooth muscle-like (LAMCore) cells in the periphery. These cells harbor mutations in or (), driving uncontrolled proliferation through the mTORC1 pathway.
View Article and Find Full Text PDFYakugaku Zasshi
August 2025
Department of Neurosurgery, St. Marianna University School of Medicine.
Cannabidiol (CBD) is an abundant phytocannabinoid extracted from Cannabis sativa L., along with delta-9-tetrahydrocannabinol. Plant-derived, highly purified CBD oral solution (100 mg/mL) is approved as Epidiolex in the United States and as Epidyolex in Europe for the treatment of seizures associated with Lennox-Gastaut syndrome, Dravet syndrome, or tuberous sclerosis complex with country-specific labels.
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