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Published on: March 14, 2017
Alloimmunization in sickle cell disease: Addressing an ongoing clinical challenge
Alistair Murray1, Sean R Stowell1
1Division of Transfusion Medicine, Mass General Brigham, Harvard Medical School, Boston, MA.
Seminars in Hematology
|July 27, 2026
Summary
Sickle cell disease patients frequently develop alloimmunization due to blood transfusions. This review details why it happens, its effects, and new strategies to prevent and manage this complication.
Area of Science:
- Hematology
- Immunology
- Transfusion Medicine
Background:
- Transfusion therapy is vital for managing sickle cell disease (SCD).
- Patients with SCD have a high risk of alloimmunization from donor red blood cells.
- Alloimmunization in SCD can lead to severe clinical consequences.
Purpose of the Study:
- To explore mechanisms of heightened immunogenicity in SCD patients.
- To review clinical and immunologic sequelae of alloimmunization in SCD.
- To highlight strategies for preventing and managing alloimmunization and its complications.
Main Methods:
- Literature review focusing on alloimmunization in sickle cell disease.
- Analysis of multifactorial mechanisms contributing to alloimmunization.
- Examination of clinical outcomes and management strategies.
Main Results:
- SCD patients show a disproportionately high incidence of alloimmunization.
- Alloimmunization in SCD often results in more severe clinical consequences.
- Under-recognition of alloimmunization's impact is a significant issue.
Conclusions:
- Understanding the mechanisms of alloimmunization is crucial for effective management.
- Preventive strategies and improved recognition are needed to mitigate complications.
- Advances in managing delayed hemolytic transfusion reactions are essential.
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