Crosstalk Between Sickle Cell Disease and Ferroptosis

Area of Science:

• Biochemistry
• Genetics
• Pathology

Background:

• Sickle cell disease (SCD) is a global inherited hemoglobin disorder.
• It stems from an HBB gene mutation causing sickle cell hemoglobin (HbS).
• HbS polymerization and fragile sickle red blood cells cause iron release, oxidative stress, and reactive oxygen species (ROS).

Purpose of the Study:

• To review the molecular and biochemical pathways of ferroptosis in SCD.
• To identify potential therapeutic targets for treating SCD by inhibiting ferroptosis.

Main Methods:

• Literature review of ferroptosis and its role in sickle cell disease pathogenesis.
• Analysis of molecular mechanisms linking HbS polymerization, oxidative stress, and ferroptosis.

Main Results:

• Ferroptosis, characterized by increased iron and ROS, and inhibited GPx4 and System Xc-, shares features with SCD pathophysiology.
• These shared pathways suggest ferroptosis is a key component of SCD.

Conclusions:

• Ferroptosis pathways are significantly implicated in sickle cell disease.
• Targeting ferroptosis presents a promising therapeutic strategy for SCD treatment.