GFI1 (Growth Factor Independent 1 Transcriptional Repressor): GFI1 functions as a transcriptional repressor, playing a pivotal role in hematopoiesis, the immune response, and the regulation of stem cell differentiation. It is essential for the development and function of neutrophils and T cells. Mutations or dysregulation of GFI1 are linked to immune deficiencies and leukemias, reflecting its critical role in maintaining immune system balance and hematologic health....