Article ; Online: Anthraquinone metabolites isolated from the rhizosphere soil Streptomyces of Panax notoginseng (Burk.) F. H. Chen target MMP2 to inhibit cancer cell migration
Journal of Ethnopharmacology. 2023, p.116457-
2023 , Page(s) 116457–
Abstract: Panax notoginseng (Burk.) F. H. Chen belongs to the Araliaceae family. It has been used by traditional Chinese people in Northeast Asia for centuries as an antidiabetic, antioxidant, antitumor agent, etc. Endophytic or rhizospheric microorganisms play ... ...
Abstract | Panax notoginseng (Burk.) F. H. Chen belongs to the Araliaceae family. It has been used by traditional Chinese people in Northeast Asia for centuries as an antidiabetic, antioxidant, antitumor agent, etc. Endophytic or rhizospheric microorganisms play key roles in plant defense mechanisms, and they are essential in the discovery of pharmaceuticals and valuable new secondary metabolites. In particular, endophytic or rhizospheric microorganisms of traditional medicinal plants. To discover valuable new secondary metabolites from rhizosphere soil Streptomyces sp. SYP-A7185 of P. notoginseng, and to explore potential bioactivities and targets of metabolites protrusive function. The metabolites were obtained via column chromatography and identified by multiple spectroscopic analyses. The antitumor, antioxidant, antibacterial, and antiglycosidases effects of isolated metabolites were tested using 3-[4,5-dimethythiazol-2-yl]-2,5-diphenyltetazolium bromide (MTT), 2,2-diphenyl-1-picrylhydrazyl (DPPH), 96-well turbidimetric, and α-glucosidase inhibitory assays. The potential antitumor targets were predicted through network pharmacological approaches. The interactions between metabolites and target were verified by molecular docking and biolayer interferometry (BLI) assay. The effects of cancer cells migration were detected through wound healing assays in A549 and MCF-7. Other cellular validation experiments including reverse transcription-quantitative PCR (RT‒qPCR) and western blotting (WB) were used to confirm the hypothesis of network pharmacology. Five different chemotypes of anthraquinone derivatives (1-10), including six new compounds (3, 6-10), were identified from Streptomyces sp. SYP-A7185. Compounds 1-6 and 9 displayed moderate to strong cytotoxicity on five human cancer cell lines (A549, HepG2, MCF-7, MDA-MD-231, and MGC-803). Moreover, matrix metalloproteinase-2 (MMP2) were predicted as a potential antitumor target of metabolites 1-6 and 9 by comprehensive network pharmacology analysis. Later, BLI assays revealed strong intermolecular interactions between MMP2 and antitumor metabolites, and molecular docking results showed the interaction of metabolites 1-6 and 9 with MMP2 was dependent on the crucial amino acid residues of LEU-83, ALA-84, LEU-117, HIS-131, PRO-135, GLY-136, ALA-140, PRO-141, TYR-143, and THR-144. These results implied that metabolites (1-6 and 9) might inhibit cancer cell migration besides cancer cell proliferation. After that, the cell wound healing assay showed that the cell migration processes were also inhibited after the treatments of compounds 1 and 3 in A549 and MCF-7 cells. In addition, the RT‒qPCR and WB results demonstrated that the gene expression levels of MMP2 were decreased after the treatment with compounds 1 and 3 in A549 and MCF-7 cells. Besides, compound 2 displayed moderate antioxidant activity (EC₅₀, 27.43 μM), compounds 3 and 6 exhibited moderate antibacterial activity, and compound 3 inhibited α-glucosidase with an IC₅₀ value of 13.10 μM. Anthraquinone metabolites, from rhizosphere soil Streptomyces sp. of P. notoginseng, possess antitumor, antioxidant, antibacterial, and antiglycosidase activities. Moreover, metabolites 1 and 3 inhibit cancer cells migration through downregulating MMP2. |
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Keywords | 2,2-diphenyl-1-picrylhydrazyl ; Chinese people ; Panax notoginseng ; Streptomyces ; amino acids ; anthraquinones ; antibacterial properties ; antineoplastic agents ; antioxidant activity ; antioxidants ; cell movement ; cell proliferation ; chemotypes ; chromatography ; cytotoxicity ; endophytes ; gelatinase A ; gene expression ; humans ; interferometry ; neoplasm cells ; pharmacology ; rhizosphere ; secondary metabolites ; soil ; spectroscopy ; traditional medicine ; Asia ; Anthraquinone ; Network pharmacology ; Matrix metalloproteinases-2 ; Cancer cell migration ; 5-FU ; A549 ; BLI ; CD ; CFU/mL ; DPPH ; EC50 ; ECD ; GAPDH ; GO ; HepG2 ; HPLC ; HR-ESI-MS ; IR ; IC50 ; KEGG ; MCF-7 ; MDA-MB-231 ; MGC-803 ; MHB ; MIC90 ; MMP2 ; MMPs ; MTT ; Ni-NTA ; NMR ; NOESY ; OR ; pNPG ; PPI ; RT‒qPCR ; TLC ; UV ; WB |
Language | English |
Publishing place | Elsevier B.V. |
Document type | Article ; Online |
Note | Pre-press version |
ZDB-ID | 134511-4 |
ISSN | 1872-7573 ; 0378-8741 |
ISSN (online) | 1872-7573 |
ISSN | 0378-8741 |
DOI | 10.1016/j.jep.2023.116457 |
Database | NAL-Catalogue (AGRICOLA) |
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