Notch signaling is an evolutionarily highly conserved signaling mechanism, but in contrast to
signaling pathways such as Wnt, Sonic Hedgehog, and BMP/TGF-β, Notch signaling occurs …

Notch signaling dictates cell fate and critically influences cell proliferation, differentiation,
and apoptosis in metazoans. Multiple factors at each step—ligands, receptors, signal …

The segmented body plan of vertebrates is established during somitogenesis, a well-studied
process in model organisms; however, the details of this process in humans remain largely …

The vertebrate body displays a segmental organization that is most conspicuous in the
periodic organization of the vertebral column and peripheral nerves. This metameric …

Background: The pattern of somites is traced out by a mechanism involving oscillating gene
expression at the tail end of the embryo. In zebrafish, two linked oscillating genes, her1 and …

Transcription of messenger RNAs (mRNAs) for Notch signaling molecules oscillates with 2-
hour cycles, and this oscillation is important for coordinated somite segmentation. However …

Expression of the Notch effector gene Hes1 is required for maintenance of neural
progenitors in the embryonic brain, but persistent and high levels of Hes1 expression inhibit …

Embryogenesis involves orchestrated processes of cell proliferation and differentiation. The
mammalian Hes basic helix-loop-helix repressor genes play central roles in these …

Notch is an evolutionarily conserved local cell signaling mechanism that participates in a
variety of cellular processes: cell fate specification, differentiation, proliferation, apoptosis …

In mammals, specification of the three major germ layers occurs during gastrulation, when
cells ingressing through the primitive streak differentiate into the precursor cells of major …