Gaucher disease: haematological presentations and complications

Area of Science:

• Biochemistry
• Genetics
• Hematology

Background:

• Gaucher disease (GD) is an autosomal recessive lysosomal storage disorder due to glucocerebrosidase deficiency.
• It leads to glycosphingolipid accumulation, causing hepatosplenomegaly, thrombocytopenia, bone disease, and bleeding.
• Traditional treatments like splenectomy are now complemented by enzyme replacement therapy (ERT).

Purpose of the Study:

• To review the pathophysiology of Gaucher disease, moving beyond the traditional macrophage-centric view.
• To highlight emerging complications such as multiple myeloma and Parkinson disease.
• To emphasize the need for further research into disease mechanisms and associated disorders.

Main Methods:

• Literature review of Gaucher disease pathophysiology and clinical manifestations.
• Analysis of historical and current treatment approaches.
• Discussion of recent findings on GD-associated conditions and proposed pathomechanisms.

Main Results:

• Enzyme replacement therapy has significantly improved hematological and visceral manifestations of GD.
• GD is associated with increased risks of multiple myeloma and Parkinson disease, challenging previous understanding.
• Altered inflammatory cytokine profiles, sphingolipids, and bone marrow microenvironment are implicated in GD pathogenesis.

Conclusions:

• Understanding the complex pathways of Gaucher disease is crucial for advancing treatment and managing associated disorders.
• Further research into GD pathogenesis will illuminate mechanisms relevant to other complex diseases.
• A multidisciplinary approach is essential for comprehensive Gaucher disease management.