Nerdy Science Blog

Last month I wrote an article about Wnt signaling system help in limb regeneration.

They know that as a human embryo matures, loads of cells await the command that directs each to become a certain type of cell with a particular function such as a heart-muscle cell. Once tissue formation begins, a red-light signal puts the brakes on cell growth before it gets out of control.

Dubbed Wnt/Beta-catenin signaling, cell-to-cell conversations control the fate of these as-yet undeveloped cells in the embryo.

—— LiveScience.com: How a Zebrafish Regrows a Fin

There are more researches show that the Wnt signaling system promote tissue regeneration.

Actually this fin-regrow-research do help in saving sharks. You can keep a shark in your aquarium and repeatedly cutting of its fins, the fins will regrow! Is it better to torture one or kills lots of them?
(Picture Source)

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