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The controversial anti-proliferative effects of Echinacea purpurea (L.) Moench (Asteraceae) might be related to different plant metabolites contained in plant samples, extracts and products. The influence of bacterial endophytes on the synthesis of bioactive compounds in the medicinal plants has been previously demonstrated but there are only few studies addressing anticancer effects and mechanisms of E. purpurea extracts following endophytic colonization. The present study aimed to test and compare the lactate dehydrogenase (LDH) inhibition potential of n-hexane and methanol extracts from in vitro endophyte non-inoculated and inoculated E. purpurea plants. An in vitro model was previously set up to perform the infection of axenic E. purpurea plants with bacterial endophytic strains isolated from E. purpurea aerial part. Only methanol extracts showed LDH5 inhibition, in particular the richest in chicoric acid and most strongly inhibiting extract was obtained from inoculated stem and leaves of E. purpurea (IC = 0.9 mg/ml). Chicoric acid showed an IC value (66.7 µM) in enzymatic assays better than that of the reference compound galloflavin. Modeling studies were carried out to suggest the putative interaction mode of chicoric acid in the enzyme active site. This in vitro model on plant-bacterial interaction may lead to obtain extracts from plants enriched in bioactive compounds and it is a new approach for the discovery of novel anticancer compounds.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6659708 | PMC |
http://dx.doi.org/10.1038/s41598-019-47329-8 | DOI Listing |
Toxicol Res
July 2024
BK21 FOUR Program, College of Veterinary Medicine, Chungnam National University, 99 Daehak-Ro, Daejeon, 34131 Republic of Korea.
Unlabelled: (L.), a member of family, has traditionally been used in numerous countries to treat and prevent various immune-related diseases. This study confirmed the oral toxicity and genotoxicity profile of standardized extract under good laboratory practice (GLP) conditions and the pharmacokinetic features of chicoric acid, a major ingredient in extract.
View Article and Find Full Text PDFPlant Biotechnol J
December 2024
Institute of Botany, Jiangsu Province and Chinese Academy of Sciences (Nanjing Botanical Garden Gem, Sun Yat-Sen), Nanjing, China.
Chicoric acid, a phenolic compound derived from plants, exhibits a range of pharmacological activities. Light significantly influences the chicoric acid biosynthesis in Taraxacum mongolicum; however, the transcriptional regulatory network governing this process remains unclear. A combined analysis of the metabolome and transcriptome revealed that blue light markedly enhances chicoric acid accumulation compared to red light.
View Article and Find Full Text PDFInt J Biol Macromol
December 2024
DUKE-NUS Medical School, National University of Singapore, 169857, Singapore.
Chicoric acid (CA) as one of Chinese medicines had anti-inflammatory, less gastrointestinal irritation, less drug-resistance and low cost properties compared with chemical synthesized drug and biologics for rheumatoid arthritis (RA) treatment. To make CA preciously and effectly RA therapy, we firstly developed a supramolecular hydrogel (GHCAP) comprising β-cyclodextrin and graphene oxide (GO) modified hyaluronic acid (CD-HA-GO) as the "host" polymer and adamantane-modified four-arm polyethylene glycol (PEG-AD) as the "guest" polymer, and then the CA was loaded into the supramolecular hydrogel (DGHCAP). The results showed that DGHCAP exhibited injectable, high modulus, high CA loading rate (43.
View Article and Find Full Text PDFFront Nutr
November 2024
College of Animal Science and Technology, Northwest A&F University, Yangling, China.
Introduction: Fatty liver syndrome (FLS) is a prevalent nutritional and metabolic disease that mainly occurs in caged laying hens, causing substantial losses in the poultry industry. The study was carried out to explore the protective effect and potential mechanism of betaine on early FLS.
Methods: There were three groups: Con group (basal diet), FLS group (Dexamethasone injection + basal diet) and betaine group (Dexamethasone injection + basal diet with 8 g/kg betaine).
Heliyon
November 2024
Department of Plant Production and Genetics, Faculty of Agriculture, Urmia University, Urmia, Iran.
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