Myd88 Gene is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
MYD88 (Myeloid Differentiation Primary Response 88) encodes a critical adaptor protein in innate immune signaling. MYD88 is essential for signaling through Toll-like receptors (TLRs) and IL-1 receptor family members, activating NF-κB and MAPK pathways to induce inflammatory gene expression. While primarily studied in immune cells, MYD88 is increasingly recognized as playing important roles in neuroinflammation and neurodegenerative diseases[1].
MYD88 contains several functional domains:
| Domain | Location | Function |
|---|---|---|
| Death Domain (DD) | C-terminus (aa 155-220) | Protein-protein interactions, recruits IRAK kinases |
| Intermediate Domain (ID) | Middle region | Platform for signaling complex assembly |
| TIR Domain | N-terminus (aa 1-150) | Homotypic interactions with receptor TIR domains |
The death domain of MYD88 is critical for downstream signaling, recruiting IRAK4, IRAK1, and IRAK2 to form the Myddosome complex[2].
MYD88 is the central adaptor protein for most TLRs and IL-1R family members:
Upon receptor activation:
MYD88 in AD:
In PD:
MYD88 is expressed in:
MYD88 as a biomarker:
Targeting MYD88:
The study of Myd88 Gene 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.
Akira S, Takeda K. (2004). Toll-like receptor signalling. Nat Rev Immunol. 4(7):499-511. PMID:15229469 ↩︎ ↩︎
Lin SC, Lo YC, Wu H. (2010). Helical assembly in the MyD88-IRAK4-IRAK2 complex in TLR/IL-1R signalling. Nature. 465(7300):885-890. PMID:20485341 ↩︎
Liu Y, et al. (2020). MyD88 deletion in microglia alleviates amyloid pathology in 5xFAD mice. J Neuroinflammation. 17(1):284. PMID:32998712 ↩︎ ↩︎
Qin Y, et al. (2020). TLR4/MyD88 pathway mediates MPTP-induced neuroinflammation and dopaminergic neuron loss. Front Aging Neurosci. 12:578846. PMID:33304273 ↩︎ ↩︎
Jeong GS, et al. (2011). Immunomodulatory effects of flavones on TLR4/MYD88 pathway. Korean J Physiol Pharmacol. 15(5):273-278. PMID:22128259 ↩︎