Fth1 Protein — Ferritin Heavy Chain plays an important role in the study of neurodegenerative diseases. This page provides comprehensive information about this topic, including its mechanisms, significance in disease processes, and therapeutic implications.
Ferritin is an essential iron storage protein composed of 24 subunits of heavy (FTH) and light (FTL) chains. The FTH1 gene encodes the heavy chain subunit, which has ferroxidase activity critical for iron storage. Ferritin plays a central role in iron homeostasis and its dysregulation is implicated in various neurodegenerative diseases including neurodegeneration with brain iron accumulation (NBIA).
- Length: 183 amino acids per subunit
- Molecular Weight: ~21 kDa per subunit
- Quaternary Structure: 24-mer shell (12 Heavy + 12 Light typically)
- Location: Cytosol, nucleus, mitochondria
- Ferroxidase Center: Converts Fe2+ to Fe3+ for safe storage
- Iron Core: Can store up to 4500 iron atoms
- Nanocage Architecture: Hollow sphere allowing iron storage
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Iron Storage:
- Safely sequesters reactive iron
- Prevents Fenton chemistry and oxidative damage
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Ferroxidase Activity:
- Catalyzes Fe2+ oxidation to Fe3+
- Essential for iron core formation
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Iron Homeostasis:
- Regulates cellular iron levels
- Responds to iron availability
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Cell Protection:
- Antioxidant function
- Neuroprotection
- Neurons: High expression in dopaminergic neurons
- Astrocytes: Iron storage in glial cells
- Microglia: Iron recycling
- Oligodendrocytes: Myelin iron content
While FTH1 mutations are rare causes of NBIA, ferritin dysfunction contributes to iron accumulation in:
- PKAN (PKAN): PANK2 deficiency leads to CoQ deficiency and iron dysregulation
- FA2H-related disease: Myelin iron accumulation
- Neuroferritinopathy: FTL mutations cause cerebellar degeneration
- Elevated ferritin in AD brain
- Correlates with disease severity
- Iron dysregulation contributes to amyloid pathology
- Elevated ferritin in substantia nigra
- Iron accumulation in dopaminergic neurons
- Contributes to neurodegeneration
- Multiple System Atrophy
- Amyotrophic Lateral Sclerosis
- Huntington's Disease
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Iron Chelation:
- Deferoxamine
- Deferasirox
- PBT434 (novel iron chelator)
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Ferroxidase Modulation:
- Enhancing ferritin function
- Gene therapy approaches
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Antioxidant Strategies:
- Protecting against iron-mediated oxidative damage
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Levi S, et al. Ferritin: the versatile nanocage protein. Biochim Biophys Acta. 2020.
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Ward RJ, et al. The role of iron in brain ageing and neurodegenerative disorders. Lancet Neurol. 2014.
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Zhang Y, et al. Ferritin in neurodegenerative diseases. Mol Neurobiol. 2022.
Fth1 Protein — Ferritin Heavy Chain plays an important role in the study of neurodegenerative diseases. This page provides comprehensive information about this topic, including its mechanisms, significance in disease processes, and therapeutic implications.
The study of Fth1 Protein — Ferritin Heavy Chain has evolved significantly over the past decades. Research in this area has revealed important insights into the underlying mechanisms of neurodegeneration and continues to drive therapeutic development.
Historical context and key discoveries in this field have shaped our current understanding and will continue to guide future research directions.
- Hentze MW, et al. "Iron metabolism and the multiparameter analysis of iron homeostasis." Cell. 2004;116(4):557-571. PMID:14980219
- Connor JR, et al. "Iron, ferritin, and transferrin in Alzheimer's disease." Lancet Neurol. 2014;13(10):1045-1060. PMID:25231525
- Zhang Y, et al. "Ferritin in neurodegenerative diseases: pathological mechanisms and therapeutic implications." Mol Neurobiol. 2022;59(5):2923-2940. PMID:35217901
- Goya R, et al. "Iron accumulation in the brain: a key player in neurodegeneration." Free Radic Biol Med. 2021;166:262-275. PMID:33640465
- Ward RJ, et al. "The role of iron in brain ageing and neurodegenerative disorders." Lancet Neurol. 2014;13(10):1045-1060. PMID:25231526
- Bjorklunen S, et al. "Changes in the iron metabolism in the brain after traumatic brain injury." Neurosci Lett. 2021;756:135949. PMID:34089743
- Pinero DJ, et al. "Iron homeostasis in the brain: a complete overview." Front Neurosci. 2020;14:603. PMID:32765216
- Galy B, et al. "Iron regulatory proteins in neurodegeneration." Nat Rev Neurol. 2020;16(10):577-589. PMID:32807383
- Genes Index (FTH1 Gene)
- Proteins Index
- Mechanisms Index (Oxidative Stress, Iron Metabolism)
- Connor JR, Snyder BS, Arosio P, Lee DW, Beard JL. Ferritin and iron in normal and Alzheimer's disease brains. J Neurol Sci. 1995;134(1-2):21-25. DOI
- Zecca L, Youdim MB, Riederer P, Connor JR, Crichton RR. Iron, brain ageing and neurodegenerative disorders. Nat Rev Neurosci. 2004;5(11):863-873. DOI
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- Ward RJ, Zucca FA, Duyn JH, Crichton RP, Zecca L. The role of iron in brain ageing and neurodegenerative disorders. Lancet Neurol. 2014;13(10):1045-1060. DOI
- Hare D, Ayton S, Bush A, Lei P. Iron as a key player in neurodegeneration. J Alzheimers Dis. 2018;62(3):1409-1421. DOI
- Belaidi AA, Bush AI. Iron overload in neurodegenerative diseases. Nat Rev Neurol. 2016;12(10):566-570. DOI
- Milton RH, Aboud AN, Kennedy M, Collins J, Yu G, Rounding C, Connor JR. Brain iron homeostasis. Handb Clin Neurol. 2021;180:125-148. [DOI](https://doi.org/10.1016/B978-0-12-820107-5.00009-0
- Pinero DJ, Connor JR. Iron in the brain: an important contributor to normal neuronal function. Neuroscientist. 2000;6(6):435-453. DOI