English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Plus

Presents the zaia usage as premium feature

ZAIA

Presents the pdf analysis as premium feature

PDF Analysis

Insights

Presents the summarisation as premium feature

Summarisation

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the access of premium content as premium feature

Premium Content

Zendy Tools

Zendy Open

Ganoderma lucidumhas been reported to be associated with suppressed motility, invasion and metastasis of several types of cancers, but its mechanism of action remains unclear. In our previous study, lucidenic acids A, B, C and N were isolated from a new strain ofG.lucidumand all of them were found to have potential anti-invasive activity on phorbol-12-myristate-13-acetate (PMA)-induced HepG2cells by suppressing the matrix metalloproteinase (MMP)-9 activity. Here, the lucidenic acid B (LAB) was used to explore its mechanisms underlying MMP-9 expression of HepG2cells. The results showed that the LAB suppressed PMA-induced MMP-9 activity in a dose-dependent transcriptional level. The suppression of PMA-induced MMP-9 expression of HepG2cells by LAB was through inactivating phosphorylation of extracellular signal-regulated kinase (ERK) 1/2. The treatment of mitogen-activated protein kinase kinase (MEK) inhibitors (PD98059 and U0126) and LAB to HepG2cells could result in a synergistic reduction on the MMP-9 expression along with an inhibition on cell invasion. Moreover, LAB also strongly inhibited PMA-stimulated nuclear factor-kappa B (NF-κB) and activator protein-1 (AP-1) DNA-binding activities of HepG2cells in dose-dependent manners. A dose-dependent inhibition on protein levels of NF-κB, c-Jun and c-Fos in nuclear by LAB treatment was further observed. In conclusion, we demonstrated that the anti-invasive effects of the LAB on the PMA-induced HepG2cells might be through inhibiting the phosphorylation of ERK1/2 and reducing AP-1 and NF-κB DNA-binding activities, leading to downregulation of MMP-9 expression.

carcinogenesis

Lucidenic acid inhibits PMA-induced invasion of human hepatoma cells through inactivating MAPK/ERK signal transduction pathway and reducing binding activities of NF-κB and AP-1