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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Differential expression of R- and N-cadherin in neural and mesodermal tissues during early chicken development.

R-cadherin is a newly identified member of the cadherin family of cell adhesion receptors. The expression of R-cadherin in early chicken embryos was studied using affinity-purified antibodies to this molecule, comparing it with that of N-cadherin. Immunoblot analysis of various organs of 10.5-day embryos showed that R-cadherin is most abundantly expressed in the retina and brain. Immunostaining of the cervical and thoracic regions of embryos revealed that R- and N-cadherin are expressed in all neural tissues. In the neural tube, R-cadherin appears at around stage 21, although N-cadherin expression begins at a much earlier stage. The distribution of R-cadherin in the neural tube differs from that of N-cadherin; for example, some regions of the tube express only R-cadherin, and other regions only N-cadherin. In the peripheral ganglia, these two cadherins are also expressed in different patterns which change during development. Some mesenchymal tissues including the notochord, the myotome, myotubes and perichondria also express these cadherins, again in different patterns. Thus, R- and N-cadherin are differentially expressed in all the tissues examined, and they may contribute to the spatial segregation of heterogeneous cells in a tissue.[1]


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