Abstract

B-cells are an integral part of the adaptive immune system and regulate innate immunity. Derived from hematopoietic stem cells they mature through a series of cell fate decisions. Complex transcriptional circuits form and dissipate dynamically during these lineage restrictions. Genomic aberrations of involved transcription factors underlie various B-cell disorders. Acquired somatic aberrations are associated with cancer, whereas germline variations predispose to both malignant and non-malignant diseases. We review the opposing role of transcription factors during B-cell development in health and disease. We focus on early B-cell leukemia and discuss novel causative gene-environment cooperations and their implications for precision medicine.

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