Inotersen (Tegsedi) Therapeutic Overview is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
Overview
Mermaid diagram (expand to render)
Inotersen (brand name Tegsedi) is an antisense oligonucleotide (ASO) therapeutic that targets transthyretin (TTR) mRNA for the treatment of hereditary transthyretin amyloidosis (hATTR) with polyneuropathy. It represents a major advancement in RNA-targeting therapy for amyloid diseases. [@coelho2020]
Drug Profile
Mechanism of Action
Molecular Target
Primary Target: Transthyretin (TTR) mRNA
Gene: TTR (chromosome 18q12.1)
Protein: Transthyretin (prealbumin) - tetrameric transport protein
Mode of Action
Inotersen is a 2'-O-methoxyethyl (2'-O-MOE)-modified ASO that:
Binds to TTR mRNA via Watson-Crick base pairing
Recruits RNase H1 to cleave the RNA-DNA hybrid
Degrades TTR mRNA before translation
Reduces hepatic TTR protein production by ~80%
Leads to reduction of circulating TTR amyloid
Pharmacokinetics
Bioavailability: ~77% (subcutaneous)
Peak plasma: 2-4 hours post-dose
Half-life: ~2-3 weeks (long tissue residence)
Distribution: Broad tissue penetration
Metabolism: Nuclease cleavage to inactive metabolites
Excretion: Renal (not significant)
Clinical Indications
Hereditary Transthyretin Amyloidosis (hATTR)
Inotersen is indicated for the treatment of:
Polyneuropathy: hATTR with stage 1 or 2 polyneuropathy
Cardiac involvement: Also shows benefit in cardiac parameters
Val30Met mutation: Most studied, but effective in all mutations
The study of Inotersen (Tegsedi) Therapeutic Overview 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.
Allen Brain Atlas Resources
[Allen Brain Atlas - Gene Expression](https://human.brain-map.org/) - Search for gene expression data across brain regions
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