Sequential Expression of OX2 and Thy-1 Glycoproteins on the Neuronal Surface during Development

Abstract
The related neuronal surface glycoproteins, Thy-1 and 0X2, are shown here to have a reciprocal pattern of expression during development in rat cerebellum. 0X2 appears at axonogenesis, on neuronal cell bodies and their axons. Immunohistochemical staining for this molecule then gradually wanes, and over the same period the cells acquire their first, weak staining for Thy-1. Intense Thy-1 expression occurs during the period of dendritic growth.