期刊
BLOOD
卷 103, 期 3, 页码 843-851出版社
AMER SOC HEMATOLOGY
DOI: 10.1182/blood-2003-05-1557
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- NCI NIH HHS [CA31685] Funding Source: Medline
The role of thymic stromal cell-derived lymphopoietin (TSLP) in regulating hematopoiesis is poorly characterized, so we investigated its regulatory effects in vivo using TSLP transgenic mice. Overexpression of TSLP disrupted hematopoietic homeostasis by causing imbalances in lymphopoiesis and myelopoiesis. Mice harboring a TSLP transgene had 5- to 700-fold fewer B and T precursors and no detectable pre-B lymphocyte colony-forming activity in the marrow or spleen. Conversely, TSLP transgenic mice possessed 15 to 20 times more splenic myeloid precursors than their littermates, and progenitor activity of the granulocyte-erythrocyte-macrophage-megakaryocyte colony-forming units was significantly elevated. The arrest in lymphopoiesis and the expansion of myelold progenitor cells in TSLP transgenic mice suggest that TSLP has negative and positive regulatory effects on lymphold and myeloid development, respectively. (C) 2004 by The American Society of Hematology.
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