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Coreopsin (CAS number: 499-29-6) is a natural compound isolated from the flowers of the Coreopsis tinctoria nutt plant. As a natural flavonoid compound with multiple biological activities, corechin glycoside is gradually gaining attention in both traditional medicine and modern pharmacological research. In recent years, with in-depth research into its various pharmacological effects such as anti-allergy, antihypertensive, and anti-diabetic effects, Corechrysin has shown promising potential for drug development. This paper aims to systematically review the chemical structure, physicochemical properties, plant origin, and extraction process of coreopsisin, and, combined with its pharmacological activity and mechanism of action, explore its druggability and clinical application prospects, providing a theoretical basis and reference for subsequent basic research and drug development.
The molecular formula of Corechrysin is C_21H_22O_10, with a molecular weight of 434.3970. Its structure belongs to flavonoid glycoside derivatives, featuring a typical flavonoid core structure with glycosyl groups attached. The compound has a LogP value of 0.5571, indicating moderate lipid solubility and some water solubility (solubility about 2.3092 mg/mL), which is beneficial for absorption and distribution in the body. Its topological pole surface area (TPSA) is 177.1400 Ų, indicating high molecular polarity, which may affect its cell membrane permeability and blood-brain barrier penetration ability, the latter also showing low permeability in experiments.
Corechin does not have hERG channel inhibitory activity, and the Ames mutagenic test result was negative (0.0), indicating high safety and low risk of toxic side effects. In summary, the physicochemical properties of corestyrin align with the characteristics of most natural flavonoid compounds and have good potential for drug development.
Coreopsis mainly comes from the flowers of coreopsis tinctoria Nutt. Coreopsis is a plant in the genus Coreopsis of the Asteraceae family, widely distributed in North America and parts of China, traditionally used in herbs and dyes. Its flowers are rich in flavonoids, with a high content of cores.
The extraction process typically uses solvent extraction methods, selecting ethanol or methanol as the extraction solvent, combined with ultrasound-assisted extraction or reflux extraction technologies to improve extraction rates. The extract undergoes concentration and separation purification steps, with commonly used methods including silica gel column chromatography and high-performance liquid chromatography (HPLC) separation. Purified corechin glycoside can be structured by mass spectrometry and nuclear magnetic resonance (NMR) techniques. In recent years, green extraction technologies such as supercritical CO_2 extraction and microwave-assisted extraction have also been attempted for efficient extraction of corechrysanthemum, aiming to increase yield and reduce environmental impact.
Corechin is relatively well researched in the field of anti-allergy effects. Allergic reactions involve various inflammatory mediators and immune cells; corechrysin exerts anti-allergic effects by modulating related targets. Both in vitro and in vivo experiments show that corechin can inhibit mast cell degranulation, reduce histamine release, and alleviate allergy symptoms. Its targets include 5-lipoxygenase (ALOX5), histamine H1 receptor (HRH1), interleukin-4 (IL4), IL5, IL-13, IgE high-affinity receptor (FCER1A), platelet-activating factor receptor (TBXA2R), signaling and transcription activator factor 6 (STAT6), and thymic stromal lymphopoietin-producing hormone (TSLP). Through multi-target regulation, chickdicin effectively inhibits Th2-mediated allergic inflammatory responses, demonstrating good anti-allergy potential.
Corechin has also shown positive effects in research on hypertension and diabetes. Animal models show that corechin can lower blood pressure levels by modulating vasodilatory factors and suppressing oxidative stress. At the same time, it promotes insulin sensitivity, can improve glucose metabolism disorders, and alleviate diabetes-related pathological changes. Although the specific molecular mechanisms still need further elucidation, its combined antioxidant, anti-inflammatory, and metabolic pathway regulation effects are considered the foundation for its pharmacological effects.
In addition to the above main effects, coreopsin also exhibits multiple activities including anti-inflammatory, antioxidant, and neuroprotective effects, suggesting its potential for development in chronic inflammation, metabolic syndrome, and neurodegenerative diseases.
The multi-target mechanism of corechin is the foundation of its pharmacological activity. In terms of anti-allergy, corechrysin inhibits ALOX5 activity, reduces leukotriene formation, and lowers the release of inflammatory mediators; At the same time, it blocks HRH1 receptors and suppresses histamine-mediated allergic reactions. It regulates Th2 cytokines such as IL4, IL5, and IL13, inhibiting the spread and worsening of allergic inflammation. Additionally, coreiaside reduces IgE-mediated immune responses and decreases mast cells and eosinophil activation by downregulating FCER1A expression.
As a key transcription factor for IL4 and IL13 signaling, STAT6's inhibitory effect blocks the differentiation and effects of Th2 cells, further reducing allergic inflammation. As an upstream inflammatory mediator, the inhibition of TSLP expression helps alleviate the occurrence and progression of allergic diseases.
In terms of lowering blood pressure and anti-diabetes, corechrysin may promote vasodilation by regulating nitric oxide (NO) synthase activity; At the same time, it suppresses oxidative stress-related signaling pathways and protects vascular endothelial function. Its regulation of glucose metabolism may involve enhancing insulin signaling pathways and suppressing inflammatory factors, improving insulin resistance.
The druggability parameters of corechin indicate its promising potential for drug development. A moderate molecular weight (434.3970) and LogP value (0.5571) indicate good solubility and bioavailability in vivo. Although a higher TPSA (177.1400) may limit oral absorption and blood-brain barrier penetration, it aids its distribution in the blood and peripheral tissues.
Its moderate water solubility is beneficial for formulation design and absorption in the body. hERG channels have no inhibitory effects, reducing the risk of cardiotoxicity. A negative Ames test indicates a low genotoxicity risk and good safety.
Currently, pharmacokinetic research on corechrysin is limited. Preliminary data indicate rapid oral absorption, but bioavailability is limited by first-pass effects and metabolic enzyme effects. Future studies are needed to further study their metabolic pathways, half-lives, and excretion modes to optimize administration regimens and formulation designs.
As a natural flavonoid glycoside, Corechrysin has broad clinical application prospects due to its multi-target and multi-mechanism pharmacological activity. Its potential in the field of anti-allergy is particularly outstanding, and in the future, it can be developed as a natural drug or adjunctive therapy for treating allergic diseases such as asthma, allergic rhinitis, and eczema. Combined with modern pharmaceutical formulation technology, chickdicin is expected to become a safe and effective new anti-allergy drug.
Additionally, corechin has shown positive effects in adjunctive treatment of hypertension and diabetes, and in the future, it can serve as a multi-target regulator, combined with existing drugs to improve metabolic and cardiovascular disease treatment outcomes. Its antioxidant and anti-inflammatory properties also offer new ideas for the treatment of neurodegenerative diseases and chronic inflammatory diseases.
However, the clinical application of coreiside still faces many challenges, including unclear pharmacokinetic characteristics, the need for optimization of in vivo stability and bioavailability, and a lack of systematic clinical trial data. Future research should focus on its pharmacokinetics, toxicological evaluation, and clinical efficacy, promoting its transformation from laboratory research to clinical application.
As a natural flavonoid glycoside derived from Coreopsis tinctoria, Coreopsis tinctoria has become one of the hot topics in natural product pharmacology research due to its unique chemical structure and multi-target pharmacological activity. Its potential therapeutic value in anti-allergy, hypertension, and diabetes conditions provides important scientific evidence for the development of natural medicines. Although the understanding of its mechanism of action and pharmacokinetics is still incomplete, existing research fully demonstrates its good druggability and safety. In the future, through interdisciplinary in-depth research, it is expected to advance corechin in clinical application, benefiting a wide range of patients.
In summary, as a natural product with multiple pharmacological activities, corechin glycoside has important potential to become a new natural medicine. Strengthening its basic research and clinical translation will open new avenues for the pharmacology of natural products and the treatment of related diseases.
Shenshuai
Wenjing
Hedandan
