Chronological Analysis of Clonal Evolution in Acquired Aplastic Anemia

Clonal hematopoiesis in acquired aplastic anemia.

Clonal hematopoiesis (CH) in aplastic anemia (AA) has been closely linked to the evolution of late clonal disorders, including paroxysmal nocturnal hemoglobinuria and myelodysplastic syndromes (MDS)/acute myeloid leukemia (AML), which are common complications after successful immunosuppressive therapy (IST). With the advent of high-throughput sequencing of recent years, the molecular aspect of ...

Clonal hematopoiesis in patients with acquired aplastic anemia.

To determine whether patients with acquired asplastic anemia (AA) exhibit clonal hematopoiesis, we used restriction fragment length polymorphisms of the X-linked genes phosphoglycerate kinase (PGK1) and hypoxanthine phosphoribosyltransferase (HPRT) and the X-linked probe M27 beta. Of the 19 female patients studied, 18 (95%) patients were informative for at least one marker. Of these, eight pati...

Clonal Hematopoiesis in Aplastic Anemia

WENTY-FIVE YEARS AGO, William Dameshek, T the founder of this journal and one of the most creative minds in American hematology, raised a provocative question: what do aplastic anemia (AA), paroxysmal nocturnal hemoglobinuria (PNH), and acute leukemia have in common?’ His question was prompted by three observations: (1) the frequency of development of PNH in his own patients with AA, (2) the ov...

Acquired aplastic anemia.

In aplastic anemia, hematopoiesis fails: Blood cell counts are extremely low, and the bone marrow appears empty. The pathophysiology of aplastic anemia is now believed to be immune-mediated, with active destruction of blood-forming cells by lymphocytes. The aberrant immune response may be triggered by environmental exposures, such as to chemicals and drugs or viral infections and, perhaps, endo...

Aplastic Anemia - Diagnos tics and Therapy of Acquired Aplastic Anemia