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Developmental biology

Modular feedback

To understand cell signalling during development, we need to know how whole signalling networks — not just their individual components — are regulated. Two new studies highlight this point.

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Figure 1: The fibroblast growth factor (FGF) synexpression group.
Figure 2: Negative feedback as an essential tool for generating appropriate behaviour of signalling systems.


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Niehrs, C., Meinhardt, H. Modular feedback. Nature 417, 35–36 (2002).

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