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A definitive role of Shp-2 tyrosine phosphatase in mediating embryonic stem cell differentiation and hematopoiesis by Rebecca J. Chan, Scott A. Johnson,

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Presentation on theme: "A definitive role of Shp-2 tyrosine phosphatase in mediating embryonic stem cell differentiation and hematopoiesis by Rebecca J. Chan, Scott A. Johnson,"— Presentation transcript:

1 A definitive role of Shp-2 tyrosine phosphatase in mediating embryonic stem cell differentiation and hematopoiesis by Rebecca J. Chan, Scott A. Johnson, Yanjun Li, Mervin C. Yoder, and Gen-Sheng Feng Blood Volume 102(6):2074-2080 September 15, 2003 ©2003 by American Society of Hematology

2 WT Shp-2 is expressed in Shp-2R cells. Rebecca J. Chan et al. Blood 2003;102:2074-2080 ©2003 by American Society of Hematology

3 Shp-2 is necessary for brachyury and flk-1 expression in EBs. (A) Total cellular RNA was prepared from day 3, 4, and 5 EBs, reverse transcription was performed using 2 μg (1 ×), 200 ng (.1 ×), or 20 ng (.01 ×) as template, and amplification of brachyury,... Rebecca J. Chan et al. Blood 2003;102:2074-2080 ©2003 by American Society of Hematology

4 Shp-2 is necessary for hemangioblast (BL CFC) formation. Rebecca J. Chan et al. Blood 2003;102:2074-2080 ©2003 by American Society of Hematology

5 Reconstitution with Shp-2 rescues ES cell differentiation and hematopoiesis. Rebecca J. Chan et al. Blood 2003;102:2074-2080 ©2003 by American Society of Hematology

6 LIF-stimulated phospho-Erk is lower and phospho-Stat3 is greater in Shp-2Δ cells. Rebecca J. Chan et al. Blood 2003;102:2074-2080 ©2003 by American Society of Hematology

7 Shp-2 modulates secondary EB formation and survival. Rebecca J. Chan et al. Blood 2003;102:2074-2080 ©2003 by American Society of Hematology

8 Schematic diagram. Rebecca J. Chan et al. Blood 2003;102:2074-2080 ©2003 by American Society of Hematology


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