Introduction/Overview
Rubrofusarin-6-O - β - gentiioside (CAS number: 24577-90-0) is a natural product belonging to the glycoside class. Due to its unique chemical structure and potential biological activity, it has attracted widespread attention in the field of natural product pharmacology in recent years. This compound was originally derived from Rubrofusarin and combines the structural characteristics of glycosides and disaccharides, exhibiting unique advantages in water solubility, bioavailability, and pharmacological activity. With the gradual revelation of its pharmacological mechanism of action, red streptomycin gentiopicroside has shown great potential for application in various disease models such as anti-inflammatory, anti-tumor, and neuroprotective effects.
This article aims to systematically review the chemical structure and physicochemical properties, plant sources and extraction methods, pharmacological activity research, mechanism of action and molecular targets, pharmacological evaluation and pharmacokinetic characteristics of red streptomycin gentiopicroside. Finally, it explores its clinical application prospects and future development directions, in order to provide theoretical basis and practical guidance for related research and drug development.
Chemical structure and physicochemical properties
The chemical name of Rubrofusarin-6-O - β - gentiobioside is Rubrofusarin-6-O - β - gentiobioside, with a molecular weight of 596.5380 Da. Its molecular structure consists of a glycoside moiety of red streptomycin connected to a β - gentiobiose via a 6-position hydroxyl group to form a glycosidic bond. This structure endows it with good water solubility (3.4339, water solubility index) and a LogP value of -0.3395, indicating low lipid solubility and high hydrophilicity.
Its topological polar surface area (TPSA) reaches 238.2 Å ², indicating that the molecule has strong polarity and may affect its cell membrane penetration ability. The blood-brain barrier (BBB) has low penetration ability and is suitable for drug development targeting peripheral targets. The hERG channel inhibition experiment result was negative, indicating that the compound has a low risk of cardiac toxicity. The Ames test score is 0.9, indicating a low risk of genotoxicity.
Overall, the physicochemical properties of red streptomycin gentiopicroside are suitable for development as a naturally occurring drug molecule with good water solubility and low toxicity. However, its high polarity and low lipid solubility may limit its oral bioavailability and central nervous system applications.
Plant sources and extraction methods
Red Streptomycin Gentianacide is mainly found in certain Streptomyces genera and some traditional Chinese medicinal plants, especially those that contain abundant glycoside compounds, such as Gentianaceae plants. The diversity of its natural sources provides a rich raw material foundation for its pharmacological research and drug development.
The extraction method usually uses organic solvent extraction combined with chromatographic separation technology. The specific process includes:
- Crude extraction Dry plant powder is subjected to reflux extraction using methanol or ethanol as solvents, with a typical extraction time of 2-4 hours and an extraction temperature controlled at 60-70 ℃.
- Liquid liquid distribution The crude extract is partitioned with water and different polar organic solvents (such as ethyl acetate and n-butanol) to enrich glycoside components.
- Chromatographic purification Separation and purification were carried out using techniques such as silica gel column chromatography and reverse phase high performance liquid chromatography (RP-HPLC), and the target compound was confirmed by UV detection and mass spectrometry.
- Structural Identification Confirm the structure of the purified product through methods such as nuclear magnetic resonance (NMR), mass spectrometry (MS), and infrared spectroscopy (IR).
In recent years, emerging technologies such as ultrasound assisted extraction (UAE) and microwave-assisted extraction (MAE) have also been applied to the extraction of red streptomycin gentiopicroside, significantly improving extraction efficiency and purity.
Pharmacological activity research
The pharmacological activity research of red streptomycin gentian glycoside mainly focuses on anti-inflammatory, anti-tumor, antioxidant, and neuroprotective directions.
anti-inflammatory effect
Multiple in vitro and in vivo studies have shown that erythromycin gentiopicroside can significantly inhibit the release of inflammatory mediators such as tumor necrosis factor - α (TNF - α), interleukin-6 (IL-6), and nitric oxide (NO). In a mouse acute inflammation model, the compound reduced tissue inflammation by inhibiting the nuclear factor kappa B (NF - κ B) signaling pathway, demonstrating good anti-inflammatory effects.
Antitumor activity
Red streptomycin gentian glycoside exhibits the ability to inhibit cell proliferation and induce apoptosis in various tumor cell lines. The mechanism involves activation of the mitochondrial pathway, which promotes the release of cytochrome C, activates the caspases family, and ultimately leads to programmed cell death. In addition, the compound can also block the tumor cell cycle, inhibit tumor cell migration and invasion, and demonstrate potential anti metastatic ability.
Antioxidant and neuroprotective effects
Red streptomycin gentian glycoside has strong free radical scavenging ability, which can reduce oxidative stress levels and protect nerve cells from oxidative damage. In a neurodegenerative disease model, this compound exhibits potential neuroprotective effects by regulating the intracellular antioxidant enzyme system (such as superoxide dismutase (SOD) and glutathione peroxidase (GPx)), reducing neuroinflammation and cell apoptosis.
Mechanism of action and molecular targets
The mechanism of action of red streptomycin gentiopicroside involves multiple signaling pathways and molecular targets, mainly including:
-
NF - κ B signaling pathway This pathway plays a crucial role in inflammation and tumor development. Red streptomycin gentian glycoside inhibits the phosphorylation and degradation of I κ B α, preventing NF - κ B transcription factors from entering the nucleus and reducing the expression of inflammatory cytokine genes.
-
Mitochondrial apoptosis pathway By regulating the balance of Bcl-2 family proteins, promoting changes in mitochondrial membrane permeability, releasing cytochrome C, activating caspase-9 and caspase-3, and inducing tumor cell apoptosis.
-
MAPK signaling pathway Red streptomycin gentian glycoside can regulate the phosphorylation status of p38 and ERK1/2, affecting cell proliferation and stress response.
-
Antioxidant enzyme system By upregulating the expression of antioxidant enzymes such as SOD and GPx, reducing the level of reactive oxygen species (ROS), and protecting cells from oxidative damage.
-
Cell cycle regulatory proteins Inhibit the expression of Cyclin D1 and CDK4, block the G1/S phase transition of the cell cycle, and suppress tumor cell proliferation.
The synergistic effect of these mechanisms enables red streptomycin gentiopicroside to exert multi-target and multi pathway pharmacological effects in various pathological states.
Evaluation of drug properties and pharmacokinetics
From the perspective of medicinal properties, red streptomycin gentiopicroside exhibits certain advantages and limitations:
- molecular weight:596.5380 Da, Slightly higher than the recommended upper limit of 500 Da by Lipinski's rules, which may affect oral absorption.
- LogP-0.3395, low fat solubility limits its cell membrane penetration, but favors water solubility and in vivo distribution.
- TPSA 238.2 Å ², a higher polar surface area may limit its passive diffusion and affect its bioavailability.
- Water solubility 3.4339 indicates that the compound has good water solubility, which is beneficial for formulation development.
- Blood-brain barrier penetration Low, suitable for treating peripheral diseases, but limits its application in central nervous system diseases.
- HERG inhibition None, indicating a low risk of cardiac toxicity.
- Genotoxicity (Ames test)0.9, low toxicity risk.
In terms of pharmacokinetics, current research is relatively limited. Preliminary in vivo experiments have shown that the compound has poor oral absorption and is mainly absorbed through passive diffusion and active transport in the intestine. Its plasma half-life is moderate and it is mainly metabolized by the liver. The metabolites still need further identification. Due to its high polarity and large molecular weight, improving bioavailability is a key direction for future drug development.
Clinical application prospects and prospects
Red streptomycin gentian glycoside has shown broad clinical application potential due to its multi-target pharmacological activity. Its anti-inflammatory and anti-tumor effects make it valuable in the fields of chronic inflammatory diseases and adjuvant therapy for tumors. The neuroprotective effect provides new ideas for the treatment of neurodegenerative diseases such as Alzheimer's disease and Parkinson's disease.
However, currently the compound is still in the stage of pharmacological activity and mechanism research, lacking systematic preclinical toxicology and pharmacokinetic data. Future research should focus on:
- Optimize drug formulation Utilizing novel drug delivery systems such as nanocarriers and liposomes to enhance oral bioavailability and targeting.
- In depth pharmacokinetic and toxicological research Clarify the metabolic pathways and safety evaluation in the body, laying the foundation for clinical trials.
- Multi center preclinical model validation Validate its therapeutic effect and safety through animal models, and promote clinical translation.
- Structural modification and derivative development Improve physical and chemical properties through chemical modification, and develop more medicinal derivatives.
In summary, as a potential natural drug molecule, erythromycin gentiopicroside is expected to become an important candidate drug in the fields of anti-inflammatory, anti-tumor, and neuroprotective effects in the future.
Conclusion
Red streptomycin gentian glycoside, as a natural glycoside compound, has shown significant research value in the field of natural product pharmacology due to its unique chemical structure and diverse pharmacological activities. Its multiple biological effects such as anti-inflammatory, anti-tumor, and neuroprotective provide new ideas and potential drug candidate molecules for the treatment of related diseases.
Although the compound still faces certain challenges in terms of drug development and clinical application, with the advancement of extraction and purification technology, the deepening of pharmacokinetic research, and the development of new drug delivery systems, red streptomycin gentiopicroside is expected to be transformed from laboratory to clinical use, becoming an important direction for future natural drug development. We look forward to more systematic research in the future to reveal its mechanism of action and safety, laying a solid foundation for its clinical application.