| Description: |
Vicenin -2 has hepatoprotective, anti-cancer, antioxidant and anti-inflammatory activities, and DTL co-administration is more effective than either of the single agents in androgen-independent prostate cancer. Vicenin -2 might be a useful lead for the development of multiple target-oriented therapeutic modalities for the treatment of diabetes and diabetes-associated complications. Vicenin -2 could act as a UV light barrier to protect the plants. |
| Targets: |
c-Myc | p53 | EGFR | Akt | mTOR |
| In vitro: |
| J Nat Prod. 2014 Mar 28;77(3):464-71. | | Evaluation of intestinal permeability of vicenin-2 and lychnopholic acid from Lychnophora salicifolia (Brazilian arnicão) using Caco-2 cells.[Pubmed: 24279746] | Lychnophora salicifolia, commonly known as "arnicão", is used as an anti-inflammatory agent and as a flavoring agent in the Brazilian traditional spirit "cachaça".
METHODS AND RESULTS:
In this work, the permeation process of Vicenin -2 (1) and lychnopholic acid (2) (major secondary metabolites from the hydroalcoholic extract) was investigated using Caco-2 cells. For this investigation, a new HPLC-DAD method was developed and validated for the quantification step. It was observed that 2 crosses the Caco-2 cell monolayer by passive diffusion. On the other hand, 1 was not transported, suggesting no absorption and no efflux of this compound in Caco-2 cells. | | J Pharm Biomed Anal . 2015 Jan;102:276-81. | | Bioassay-guided preparative separation of angiotensin-converting enzyme inhibitory C-flavone glycosides from Desmodium styracifolium by recycling complexation high-speed counter-current chromatography[Pubmed: 25459924] | | A new strategy of the convergence of high-speed counter-current chromatography (HSCCC) and bioactive assay technique was developed for rapidly screening and separating the angiotensin-converting enzyme (ACE) inhibitors from the aerial parts of Desmodium styracifolium. Bioactivity-guided fractionation of the crude extract was first established to target the bioactive fractions based on HSCCC coupled with in vitro ACE inhibitory assay. Subsequently, the bioactive fractions were further separated by the recycling complexation HSCCC respectively, using 0.10 mol/L copper sulfate in the lower phase of two-phase solvent system composed of n-butanol/water (1:1, v/v). Five C-glycosylflavones, vicenin 2 (1), carlinoside (2), vicenin 1 (3), schaftoside (4) and vicenin 3 (5), were successfully obtained. Their chemical structures were identified using ESI-MS and NMR. All the isolates showed in vitro ACE inhibitory activity with the IC50 values between 33.62 and 58.37 μM. The results demonstrated that the established method was proposed as an excellent strategy to systematically screen and purify active compounds from traditional Chinese medicines. |
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| In vivo: |
| Sci Rep. 2014 Mar 7;4:4309. | | Mass spectrometry of flavonoid vicenin-2, based sunlight barriers in Lychnophora species.[Pubmed: 24603617] | | Lychnophora salicifolia plants collected from four different places in Brazil (three states: Goias, Minas Gerais and Bahia) revealed a conserved accumulation of Vicenin -2 , a di-C-glycosyl flavonoid. Quantitative studies by UPLC-MS/MS showed high concentration of Vicenin -2 in leaves from sixty specimens of six Lychnophora species. So the tissue distributions of Vicenin -2 were evaluated in wild Lychnophora leaves (Asteraceae) by laser based imaging mass spectrometry (IMS) to propose its distributions and possible functions for the species analyzed. Mass spectrometric imaging revealed that Vicenin -2 , unlike other flavonoids, was produced at the top of the leaves. The combination of localization and UV absorption properties of Vicenin -2 suggests that it could act as a UV light barrier to protect the plants, since plants are sessile organisms that have to protect themselves from harsh external conditions such as intense sunlight. | | Phytomedicine. 2013 Mar 15;20(5):427-31. | | Testing of Perilla frutescens extract and Vicenin 2 for their antispasmodic effect.[Pubmed: 23357362] | | Gastrointestinal discomfort is frequently observed. The effects of Perilla frutescens extract and Vicenin -2 (a compound in this extract) were assayed in rat ileum with or without stimulation with acetylcholine or Ba(2+). Both had no direct spasmolytic effect, but both decreased acetylcholine- or Ba(2+)-induced contraction of rat ileum indicating an antispasmodic effect. This is valuable because effects were only observed when spasms were induced and may disturb the patient. The extract and the compound may be used to maintain and improve gut health. |
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Cell. 2018 Jan 11;172(1-2):249-261.e12. doi: 10.1016/j.cell.2017.12.019.IF=36.216(2019)
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Sci Adv. 2018 Oct 24;4(10): eaat6994. doi: 10.1126/sciadv.aat6994.IF=12.804(2019)
