Target intelligence / Profile preview

Serum Amyloid A Protein (SAA)

Target
SAA
Molecular classification
Apolipoprotein, Acute-phase protein
01

Overview

Serum amyloid A (SAA) proteins are a family of apolipoproteins primarily associated with high-density lipoprotein (HDL) in plasma. They are major acute-phase proteins whose serum concentrations increase dramatically during inflammation, infection, or trauma. SAA is mainly produced by hepatocytes and plays a role in modulating innate immunity, cholesterol homeostasis, and recruiting immune cells. Chronic elevation is linked to several diseases, including AA amyloidosis.

Other names
SAA1SAA2SAA4Acute-phase serum amyloid A
02

Biological functions

Acute phase responseCholesterol transportImmunomodulationRecruitment of immune cellsCytokine productionMatrix degradationInnate immunity modulation
03

Disease associations

AA AmyloidosisRheumatoid ArthritisAtherosclerosisInflammationMetabolic disorders
04

Safety considerations

Chronic elevation linked to amyloidosisPotential for organ dysfunction due to amyloid fibril formation
05

Biomarkers

Systemic inflammationDisease activity in rheumatoid arthritisRisk factor for AA amyloidosisMetabolic health status

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