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ECs at the angiogenic front dynamically compete for the tip position through DLL4/Notch signaling . Following VEGF exposure, all cells upregulate DLL4. However, ECs that express DLL4 more quickly or at higher levels have a competitive advantage to become a tip cell as they activate Notch signal ing in neighboring cells more effectively.

[ Last edited by yin198716 on 2013-1-23 at 13:27 ]

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3Â¥: Originally posted by nwsuafliu at 2013-01-23 13:54:45
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