Proteinopathy

Editor-In-Chief: Prab R Tumpati, MD
Obesity, Sleep & Internal medicine
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Proteinopathy
Synonyms	N/A
Pronounce	N/A
Specialty	N/A
Symptoms	Neurodegeneration, organ dysfunction
Complications	Alzheimer's disease, Parkinson's disease, Amyloidosis
Onset	Varies by condition
Duration	Chronic
Types	N/A
Causes	Misfolded proteins
Risks	Genetic predisposition, aging, environmental factors
Diagnosis	Biopsy, imaging studies, genetic testing
Differential diagnosis	Other causes of neurodegeneration
Prevention	N/A
Treatment	Symptomatic, disease-modifying therapies under investigation
Medication	N/A
Prognosis	Varies by specific condition
Frequency	Common in elderly
Deaths	N/A

Amyloid deposits in liver stained with Congo Red

Alpha-synuclein in Lewy Bodies and Lewy Neurites

Tauopathy in Alzheimer's disease

Proteinopathy refers to a broad range of diseases that are caused by proteins that become structurally abnormal, and thereby disrupt the function of cells, tissues and organs of the body. Proteinopathies include Alzheimer's disease, Parkinson's disease, Huntington's disease, Amyotrophic lateral sclerosis, and Prion diseases.

Introduction

Proteinopathies are caused by certain proteins that fail to fold into their normal configuration. In this misfolded state, the proteins can become toxic and can aggregate into insoluble protein aggregates that contribute to the disease process. This is a common mechanism in neurodegenerative diseases, systemic diseases, and many other conditions.

Types of Proteinopathies

There are several types of proteinopathies, which are classified based on the protein involved and the disease it causes. These include:

• Amyloidosis: This is a group of diseases in which abnormal proteins, known as amyloids, build up in tissues and organs.
• Tauopathies: These are a class of neurodegenerative diseases associated with the pathological aggregation of tau protein in the human brain.
• Synucleinopathies: These are neurodegenerative diseases characterized by the abnormal accumulation of aggregates of alpha-synuclein protein in neurons, nerve fibers or glial cells.

Treatment

Treatment for proteinopathies is largely symptomatic, focusing on improving quality of life and slowing disease progression. However, research is ongoing to find treatments that can target the underlying protein misfolding and aggregation.

See Also

• Neurodegenerative disease
• Protein folding
• Protein aggregation