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. 1990 Aug;87(15):5720–5723. doi: 10.1073/pnas.87.15.5720

Astrocyte cultures derived from human brain tissue express angiotensinogen mRNA.

A Milsted 1, B P Barna 1, R M Ransohoff 1, K B Brosnihan 1, C M Ferrario 1
PMCID: PMC54399  PMID: 2377609

Abstract

We have identified human cultured cell lines that are useful for studying angiotensinogen gene expression and its regulation in the central nervous system. A model cell system of human central nervous system origin expressing angiotensinogen has not previously been available. Expression of angiotensinogen has not previously been available, Expression noninduced human astrocytes, since astrocytic cell lines derived from human glioblastomas or nonneoplastic human brain tissue invariably produced angiotensinogen mRNA. In situ hybridization histochemistry revealed that angiotensinogen mRNA production was not limited to a subpopulation of astrocytes because greater than 99% of cells in these cultures contained angiotensinogen mRNA. These cell lines will be useful in studies of the molecular mechanisms controlling angiotensin synthesis and the role of biologically active angiotensin in the human brain by allowing us to examine regulation of expression of the renin-angiotensin system in human astrocyte cultures.

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