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Animal Models for Acquired Bone Marrow Failure Syndromes

Jichun Chen, PhD, Hematology Branch, National Heart, Lung, and Blood Institute, Bethesda, MD 20892

Reprint Requests: Jichun Chen, PhD, Hematology Branch, NHLBI, NIH Building 10, Clinical Research Center, Room 3E-5132, 10 Center Drive, Bethesda, MD 20892-1202, Tel: 301-496-2632, Fax: 301-496-8396, Email: chenji{at}nhlbi.nih.gov

Bone marrow failure is a disease characterized by a drastic decline in the marrow’s functional ability to produce mature blood cells. Aplastic anemia, a disease in which patients have essentially empty bone marrow accompanied by severe anemia, neutropenia, and thrombocytopenia, presents a paradigm for bone marrow failure. Damage to the marrow may first result from exposure to toxic chemicals, drug overdose, radiation, and viral infection; however, it is the extended immune-mediated reaction that causes massive destruction of hematopoietic cells and leads to marrow hypoplasia and peripheral pancytopenia.

In recent years, animal models of acquired bone marrow failure syndromes have helped to strengthen our understanding of the mechanisms causing bone marrow failure. In this review, animal models for bone marrow failure are summarized by two groups: 1) bone marrow failure induced by toxic chemicals and drugs such as benzene, busulfan, and chloramphenicol, and radiation, and 2) models developed by an immune-related mechanism such as viral infection or foreign lymphocyte infusion.

Key Words: Bone marrow diseases • Aplastic anemia • Animal models

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