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

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Rehmannia glutinosa induces glial cell line-derived neurotrophic factor gene expression in astroglial cells via cPKC and ERK1/2 pathways independently.

Among four herbs of traditional Chinese medicines (TCMs) used in the therapy of dementia, Rehmannia glutinosa (RG) was found to induce the gene expression of glial cell line-derived neurotrophic factor (GDNF) in C6 glioblastoma cells and primary cultured astrocytes. The RG-induced GDNF mRNA up-regulation in C6 glioblastoma cells was completely attenuated by the presence of a pan-specific protein kinase C (PKC) inhibitor (Ro-31-8220) and a MAPK/ERK kinase 1 (MEK1) inhibitor (U0126). A conventional PKC inhibitor (Gö6976) also significantly decreased GDNF gene induction. On the other hand, RG treatment was found to stimulate phosphorylation of extracellular signal-regulated kinase 1 and 2 (ERK1/2), which preceded GDNF mRNA induction in C6 glioblastoma cells. However, none of the PKC inhibitors significantly changed RG-stimulated ERK1/2 phosphorylation. Therefore, RG-stimulated GDNF gene expression could be independently up-regulated through cPKC and ERK 1/2 pathways in C6 glioblastoma cells.[1]

References

  1. Rehmannia glutinosa induces glial cell line-derived neurotrophic factor gene expression in astroglial cells via cPKC and ERK1/2 pathways independently. Yu, H., Oh-Hashi, K., Tanaka, T., Sai, A., Inoue, M., Hirata, Y., Kiuchi, K. Pharmacol. Res. (2006) [Pubmed]
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