BAI Jie,WANG Weifeng,MAO Guangmin,et al.Molecular Mechanism of Salviae Miltiorrhizae Radix et Rhizoma against Bladder Cancer: Based on Network Pharmacology and In Vitro Experiment[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(15):153-161.
BAI Jie,WANG Weifeng,MAO Guangmin,et al.Molecular Mechanism of Salviae Miltiorrhizae Radix et Rhizoma against Bladder Cancer: Based on Network Pharmacology and In Vitro Experiment[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(15):153-161. DOI: 10.13422/j.cnki.syfjx.20220714.
Molecular Mechanism of Salviae Miltiorrhizae Radix et Rhizoma against Bladder Cancer: Based on Network Pharmacology and In Vitro Experiment增强出版
To predict the potential targets and possible related signaling pathways of Salviae Miltiorrhizae Radix et Rhizoma against bladder cancer (BC) based on network pharmacology and verify the potential molecular mechanism through
in vitro
cell experiment.
Method
2
Active components of Salviae Miltiorrhizae Radix et Rhizoma were retrieved from Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform (TCMSP) and BC-related targets were searched from GeneCards and Online Mendelian Inheritance in Man (OMIM). Via Venny2.1, the potential targets of Salviae Miltiorrhizae Radix et Rhizoma against BC were screened out and the Venn diagram was plotted. Protein-protein interaction (PPI) network was constructed by STRING, followed by Gene Ontology (GO) term enrichment and Kyoto Encyclopedia of Genes and Gnomes (KEGG) pathway enrichment with DAVID. Cell Counting Kit-8 (CCK-8) assay was employed to detect the inhibitory effect of tanshinone Ⅱ
A
(Tan Ⅱ
A
), cryptotanshinone (CPT), and luteolin (LUT) at different concentration (0, 1, 2, 4, 8, 16, 32 μmol·L
-1
) on the proliferation of BC T24 and 5637 cells, propidium iodide (PI) staining to analyze the apoptosis of 5637 cells induced by Tan Ⅱ
A
, CPT, and LUT (0, 4, 8 μmol·L
-1
), and Western blotting to detect the regulatory effect of Tan Ⅱ
A
(0, 4, 8, 16 μmol·L
-1
) on the expression of key target proteins.
Result
2
A total of 65 active components and 39 anti-BC targets of Salviae Miltiorrhizae Radix et Rhizoma were screened out. The anti-BC targets were mainly involved in the KEGG pathways of neuron-ligand-receptor interaction, phosphatidylinositol 3-kinases (PI3K)/protein kinase B (Akt) signaling pathway, epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor resistance, and hypoxia inducible factor (HIF)-1 signaling pathway. As for the CCK-8 assay, compared with the blank group, Tan Ⅱ
A
, CPT, and LUT significantly inhibited the proliferation of T24 and 5637 cells, particularly the 5637 cells. The half maximal inhibitory concentration (IC
50
) of Tan Ⅱ
A
on 5637 cells was significantly lower than that of CPT and LUT. Moreover, compared with the blank group, Tan Ⅱ
A
, CPT, and LUT all induced the apoptosis of 5637 cells, and the effect followed the order of Tan Ⅱ
A
>
CPT
>
LUT (
P
<
0.05). Western blot showed that Tan Ⅱ
A
significantly reduced the expression of EGFR, p-PI3K, and p-Akt in 5637 cells in a concentration-dependent manner compared with the blank group (
P
<
0.05).
Conclusion
2
Salviae Miltiorrhizae Radix et Rhizoma exerts therapeutic effect on BC through multiple components, multiple targets, and multiple pathways. The mechanism is the likelihood that it down-regulates the expression of EGFR, p-PI3K, and p-Akt proteins, thus further inhibits cell proliferation, and induces apoptosis.
关键词
Keywords
references
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