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Brain Res. 1995 Oct 30;697(1-2):235-40.

Neuronal localization of CD38 antigen in the human brain.

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  • 1Department of Mental Retardation and Birth Defect Research, National Institute of Neuroscience, Tokyo, Japan.


CD38 is a lymphocyte differentiation antigen which is involved in the cyclic ADP-ribose-mediated second messenger system. We provide immunochemical and immunohistochemical evidence for the expression of CD38 in the adult human brain. We used six polyclonal antibodies against synthetic CD38 polypeptides, in addition to four monoclonal antibodies already available. Brain CD38 was detectable by Western blotting after immunoaffinity purification of the brain extracts. Immunoperoxidase staining localized CD38 immunoreactivity to the perikarya and dendrites of many neurons, such as the cerebellar Purkinje cells, implying that CD38 is involved in the signal transduction within the central nervous system neurons.

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