ReviewInternational journal of hematology2026
Clonal expansion mechanisms in paroxysmal nocturnal hemoglobinuria.
Review in International journal of hematology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Abstract
Paroxysmal nocturnal hemoglobinuria (PNH) is characterized by complement-dependent intravascular hemolysis and thrombosis as well as bone marrow failure. Complement dysregulation occurs as a result of defective cell surface expression of two glycosylphosphatidylinositol (GPI)-anchored complement regulators, decay-accelerating factor/CD55 and CD59, caused by somatic mutation of the phosphatidylinositol glycan anchor biosynthesis class A gene (PIGA). Somatic loss-of-function mutation of PIGA generates GPI-anchor-defective hematopoietic stem cell clones, the expansion of which results in large numbers of abnormal erythrocytes, platelets, and other blood cells. The clonal expansion of PIGA mutant hematopoietic stem cells is thought to be mediated by an autoimmune mechanism that suppresses or eliminates normal hematopoietic stem cells while sparing GPI-defective stem cell clones under bone marrow failure environments, the acquisition of a growth phenotype, or both of these mechanisms. This review examines current knowledge and views about the clonal expansion mechanism.
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