Chemical taxonomy of tree peony species from China based on root cortex metabolic fingerprinting.

The resveratrol oligomers, cis- and trans-gnetin H, from Paeonia suffruticosa seeds inhibit the growth of several human cancer cell lines

Identification and characterisation of bioactive compounds from the seed kernels and hulls of Paeonia lactiflora Pall by UPLC-QTOF-MS.

Naturally derived stilbenes have been shown to elicit cytotoxic, anti-steroidal, anti-mutagenic, anti-oxidative, anti-inflammatory, and antitumor bioactivities. Previous phytochemical studies revealed that the seeds of Paeonia suffruticosa are rich in natural stilbenes. In this study the antitumor effects and mechanism of action of the oligostilbene isomers, cis- and trans-suffruticosol D, isolated from the seeds of P. suffruticosa were examined. cis- and trans-suffruticosol D exhibited remarkable cytotoxicity against the human cancer cell lines A549 (lung), BT20 (breast), MCF-7 (breast), and U2OS (osteosarcoma), but showed significantly less toxicity to the normal human cell lines HMEC (breast) and HPL1A (lung). We also demonstrated that cis- and trans-suffruticosol D exerted their antitumor effects by provoking oxidative stress, stimulating apoptosis, decreasing the mitochondrial membrane potential, inhibiting cell motility, and blocking the NF-κB pathway in human lung cancer cells. In addition, we evaluated their respective bioefficacy and found that trans-suffruticosol D is more potent than cis-suffruticosol D. Collectively, our results suggest that cis- and trans-suffruticosol D could be promising chemotherapeutic agents against cancer.

/pdf/in-vitro-antitumor-effects-of-two-novel-oligostilbenes-cis-1tn8n8zzda.pdf

In vitro antitumor effects of two novel oligostilbenes, cis- and trans-suffruticosol D, isolated from Paeonia suffruticosa seeds

Paeonia suffruticosa from the section Moutan of the genus Paeonia is an important Chinese medicinal herb. In our previous study, 10 oligostilbenes from the seeds of P. suffruticosa, including trans-resveratrol and its dimers and trimers, were isolated and identified. In the present study, the anti-proliferative effects of these 10 oligostilbenes were systemically evaluated in a panel of human lung, breast and bone cancer cell lines, and their apoptotic effects were analyzed using a high-content multiplex apoptosis assay and a fluorescent caspase-3/7 assay. Furthermore, their anti-metastasis effects were examined in an invasive breast cancer cell line. Among the ten compounds, two resveratrol dimers, trans- and cis-gnetin H, showed the most potent anti-proliferative and anti-metastasis effects. All trans-oligostilbenes were more effective than their cis-forms, and trimers of resveratrol were more effective than dimers and the resveratrol isomer. The structure-activity relationships revealed that the polymerization degree, the double bond in the stilbene skeleton, and the steric arrangement and conformation of oligostilbenes obviously affected their antitumor potential. The results from this study provide valuable information for future semi-synthesis of resveratrol derivatives to develop novel cancer chemopreventive agents.

/pdf/anti-proliferative-and-anti-metastasis-effects-of-ten-uqluho02uy.pdf

Anti‑proliferative and anti‑metastasis effects of ten oligostilbenes from the seeds of Paeonia suffruticosa on human cancer cells

A rapid, sensitive, and accurate HPLC-DAD method was developed and validated for simultaneous determination of 10 stilbenes, which include suffruticosol A, suffruticosol B, suffruticosol C, resveratrol (E)-form, cis-ϵ-viniferin, trans-ϵ-viniferin, cis-suffruticosol D, cis-gnetin H, trans-suffruticosol D and gnetin H, in 44 plant samples from 9 different Paeonia species. In this optimized method, separations were carried out on an YMC-pack ODS-A column with water and methanol as mobile phase. The flow rate was set at 1.0 mL/min and the detector wavelength was set at 230 nm. The results showed that all the 10 analytes showed good linearity (r2 > 0.9994). The recoveries, measured at three concentration levels, varied from 97.19% to 102.89%. This method was also validated with respect to precision, repeatability, stability, and successfully applied to simultaneous determination of 10 stilbenes in 44 batches of peony seeds from 9 Paeonia species collected from different areas.

Simultaneous determination of ten stilbenes in the seeds of paeonia species using hplc-dad

The invention relates to a furanditerpenoid compound with a brand new structure separated from Saururaceae medical plants, a preparation method and an application thereof. Experimental research results show that the compound has a protective function for endothelial injury caused by H2O2, and can prevent and cure cardiovascular and cerebrovascular diseases.

New furanditerpenoid compound, preparation method and application thereof

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Simultaneous determination of ten stilbenes in the seeds of paeonia species using hplc-dad

New furanditerpenoid compound, preparation method and application thereof