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

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Krajewska, M. et al.

Dynamics of expression of apoptosis-regulatory proteins Bid, Bcl-2, Bcl-X, Bax and Bak during development of murine nervous system.

We have used immunohistochemistry and immunoblotting to examine the expression of Bid and four other Bcl-2 family proteins (Bcl-2, Bcl-X, Bax and Bak) in the developing and adult murine central nervous system (CNS). Bid protein is widespread in embryonic and postnatal brain, and its expression is maintained at a high level late into the adulthood. Bid is expressed both in the germ disc, early neural tube, proliferating stem cells of ventricular zones, and in postmitotic, differentiated neurons of the developing central and peripheral nervous system. As the differentiation proceeds, the neurons express higher levels of Bid than the stem cells of the paraventricular zone. Both in embryonic and postnatal life, Bid protein is present in the most vital regions of brain, such as the limbic system, basal ganglia, mesencephalic tectum, Purkinje cells in cerebellum, and the ventral columns of spinal cord. The p15 cleaved form of Bid was detectable in the brain specimens at fetal stages of development, consistent with caspase- mediated activation of this pro-apoptotic Bcl-2 family protein. Among the Bcl-2 family proteins only Bid and Bcl-XL continue to be expressed at high levels in the adult brain.[1]

References

Dynamics of expression of apoptosis-regulatory proteins Bid, Bcl-2, Bcl-X, Bax and Bak during development of murine nervous system. Krajewska, M., Mai, J.K., Zapata, J.M., Ashwell, K.W., Schendel, S.L., Reed, J.C., Krajewski, S. Cell Death Differ. (2002) [Pubmed]

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