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Title: Transcriptional regulation of blood formation during Xenopus development. Author: Huber TL, Zon LI. Journal: Semin Immunol; 1998 Apr; 10(2):103-9. PubMed ID: 9618755. Abstract: Hematopoiesis is the generation, proliferation and differentiation of hematopoietic stem cells (HSCs) into the erythroid, myeloid and lymphoid lineages. The HSC is a ventral mesodermal derivative that arises due to inductive and patterning processes triggered by bone morphogenetic protein 4 (BMP-4). Recent studies in Xenopus laevis have identified families of transcription factors that participate in hematopoietic development. Transcription factor families, such as the SMADs, Mixs and Vents pattern mesoderm to a ventral fate which ultimately results in the expression of hematopoietic-specific transcription factors such as GATA-1 and SCL. This transcriptional regulatory network enforces the correct temporal and spatial expression of the blood program.[Abstract] [Full Text] [Related] [New Search]