In an embryo, the stem cells develop into specific organs under the influence of complex extracellular signals. Sonic hedgehog (Shh) plays an important role in this process but its signalling pathway is not entirely understood. In August 31 Science Gurtej Dhoot and colleagues from the University of Pennsylvania Medical Center identify a member of a family of conserved sulfatases, QSulf1, which is responsive to Shh signaling and has role in embryonic cell fate determination.Dhoot et al. identifie
In an embryo, the stem cells develop into specific organs under the influence of complex extracellular signals. Sonic hedgehog (Shh) plays an important role in this process but its signalling pathway is not entirely understood. In August 31
Dhoot
Identifying and understanding the mechanisms ...
In mammals, intracellular clocks begin to tick within days of fertilization.
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