Storage conditions：Short-term storage at 2~8℃, long-term storage at -20 ~ -80℃

Introduction/Overview

Acetylcorynoline (CAS No.: 18797-80-3) is a benzophenidyl alkaloid derived from the traditional Chinese medicinal herb Corydalis bungeana, a plant of the genus Corydalis. As one of the main active ingredients of this plant, Acetyl Violet Jingling has attracted widespread attention in the field of natural product pharmacology in recent years due to its remarkable anti-inflammatory effects and multi-target regulatory properties. Research shows that acetyl Zijin not only has anti-inflammatory and immunomodulatory functions but also shows potential application value in the treatment of neurodegenerative diseases such as Parkinson's disease. In addition, its protective effects in experimental liver injury models and its regulatory effects on immune cell function further enrich its pharmacological activity spectrum.

This paper aims to systematically review the chemical structure and physicochemical properties, plant origin, and extraction methods of Acetyl Zijinling, focusing on its pharmacological activity and mechanism of action, exploring its medicinal parameters and pharmacokinetic characteristics, and further looking ahead to its clinical application prospects, providing theoretical basis and directions for subsequent basic and translational research.

Chemical structure and physicochemical properties

Acetyl Zijin Jingling has a chemical structure and belongs to the benzophenidine alkaloids, with a molecular formula of C23H27NO6 and a molecular weight of 409.43. Its core structure is made of benzophenidyl skeleton and contains multiple phenolic hydroxyl groups and acetylation modification groups, giving it unique physicochemical properties. The LogP value is about 2.5, indicating moderate lipid solubility, which facilitates cell membrane penetration. The topological pole surface area (TPSA) is 99.19 Ų, indicating moderate polarity, which may affect its bioavailability and blood-brain barrier penetration ability.

Acetyl Violet contains seven hydrogen bond receptors, suggesting that it may form multi-point hydrogen bond interactions when binding to biological macromolecule targets. Although its blood-brain barrier penetration ability is assessed as low, its potential role in neurological diseases suggests that it may exert central nervous system regulation through indirect mechanisms or metabolites. Currently, systematic data on its hepatotoxicity, cardiotoxicity, and hERG channel inhibition safety indicators are still lacking, requiring further in-depth research.

Plant Origins and Extraction Methods

Acetyl Violet is mainly isolated from the traditional Chinese medicinal herb Corydalis bungeana, a plant of the genus Corydalis. Corydalis bungeana is widely distributed in northern and northeastern China and is a commonly used herb in traditional Chinese medicine for promoting blood circulation, removing blood stasis, reducing inflammation, and relieving pain. The rhizomes of plants are the main medicinal parts and contain various alkaloid components, with acetyl purinopo being relatively high.

The extraction process typically uses alcohol solvents (such as methanol, ethanol) for extraction and combines acid-base adjustment to enrich alkaloids. Common separation and purification methods include liquid-liquid extraction, column chromatography (silica gel, C18 reversed-phase column), and high-performance liquid chromatography (HPLC) technology. In recent years, ultrasound-assisted extraction and microwave-assisted extraction technologies have been applied to improve the extraction efficiency and purity of acetyl Zijinling. After purification, the acetyl Zijin Jingling was identified and purified by mass spectrometry, nuclear magnetic resonance (NMR), and infrared spectroscopy (IR) methods.

Pharmacological activity research

Anti-inflammatory effects

The anti-inflammatory activity of Acetyl Zijin Ling was one of the earliest pharmacological properties to be considered. Both in vitro and in vivo studies have shown that it can significantly inhibit the production of inflammatory mediators, such as tumor necrosis factor α (TNF-α), interleukin-6 (IL-6), and nitric oxide (NO). Its mechanism involves inhibiting activation of the nuclear factor κB (NF-κB) signaling pathway, reducing the transcriptional expression of pro-inflammatory cytokines, thereby alleviating inflammatory responses.

In experimental mouse liver injury models, acetyl Zijin Jingling significantly alleviated hepatocyte damage by reducing inflammatory cell infiltration and oxidative stress levels in liver tissue, demonstrating good hepatoprotective effects. This provides experimental evidence for its potential application in hepatitis and other inflammation-related liver diseases.

Neuroprotection and Parkinson's disease potential

Research on acetyl Zijin in the field of neurodegenerative diseases is gradually increasing. By regulating the expression of apoptosis-related gene egl-1, it inhibits neuronal apoptosis and protects dopaminergic neurons from damage. This mechanism is of great significance for the treatment of neurodegenerative diseases such as Parkinson's disease.

Additionally, acetyl Zijin can increase the expression of the proteasome subunit RPN5, enhancing proteasome activity, helping to clear abnormal protein aggregations, and alleviating nerve cell stress responses. This multi-target regulatory nature makes it a natural drug candidate with potential neuroprotective effects.

Immune regulation and immunosuppressive effects

Acetyl Violet Acid demonstrates potent immunosuppressive activity by blocking the maturation and function of dendritic cells (DCs). Dendritic cells, as antigen-presenting cells, play a key role in initiating and regulating immune responses. Acetyl Violet inhibits the expression of surface co-stimulatory molecules and cytokine secretion of DCs, reducing their ability to activate T cells and thereby suppressing excessive immune responses.

This property gives acetyl violet vitrin potential application value in immune regulation of autoimmune diseases, transplant rejection, and inflammatory diseases.

Drug dependence-related effects

Acetyl Violet interacts with various neurotransmitter receptors and transporters such as ABCB1 (P-glycoprotein), SIGMAR1 (σ-1 receptor), DRD1 (dopamine D1 receptor), ADRA1A (α1A adrenergic receptor), and DRD5 (dopamine D5 receptor), suggesting it may affect neurotransmitter balance and signal transduction in the central nervous system. These targets are closely related to drug dependence and addiction mechanisms, indicating that acetyl violet has exploratory potential in the prevention and treatment of drug dependence.

Mechanism of action and molecular targets

The multi-target mechanism of acetyl Zijin Ling is the foundation of its complex pharmacological activity. Its main targets and mechanisms include:

1. Anti-inflammatory mechanism: By inhibiting the NF-κB signaling pathway, it reduces the expression of pro-inflammatory cytokines (such as TNF-α, IL-6), thereby lowering inflammatory responses. This mechanism plays a protective role in liver injury and other inflammation-related diseases.

2. Anti-apoptotic mechanism: regulates EGL-1 gene expression, inhibits apoptosis pathways, and protects neurons from damage, especially prominent in Parkinson's disease models.

3. Enhanced proteasome activity: By upregulating the expression of the proteasome subunit RPN5, proteasome function is improved, abnormal protein degradation is promoted, and cellular stress is reduced.

4. Immunosuppressive mechanism: Blocks dendritic cell maturation, suppresses antigen presentation, reduces T cell activation, and exerts immunosuppressive effects.

5. Neurotransmitter regulation: Interacts with dopamine receptors (DRD1, DRD5), adrenaline receptors (ADRA1A), and σ-1 receptors (SIGMAR1), modulating neurotransmitter signaling that may affect drug dependence and neuropsychiatric disorders.

6. Transmembrane transporter regulation: acts on ABCB1, potentially affecting drug absorption, distribution, and excretion, as well as pharmacokinetics and resistance.

These multidimensional mechanisms together form a complex pharmacological network of Acetyl Violet, providing theoretical support for its therapeutic potential across various diseases.

Druggability evaluation and pharmacokinetics

The druggability parameters of Acetyl Zijin Ling indicate that it has certain potential for drug development. The molecular weight of 409.43 conforms to the Lipinski rule, and a LogP value of 2.5 indicates moderate lipid solubility, which is beneficial for cell membrane permeability. TPSA was 99.19 Ų, slightly higher but still within an acceptable range, suggesting that its oral bioavailability may be good.

However, acetyl violet is assessed as having a low blood-brain barrier penetration ability, which may limit its ability to act directly on the central nervous system, but its effects in neurological diseases such as Parkinson's disease may be achieved through indirect mechanisms or metabolites.

Currently, safety data on hepatotoxicity, cardiotoxicity (including hERG channel inhibition), and genotoxicity (Ames assay) of acetyl Zijin Ling are insufficient, requiring systematic toxicological evaluation. Moreover, its pharmacokinetic characteristics such as absorption, distribution, metabolism, and excretion (ADME) have not been fully elucidated. Future research should focus on its in vivo metabolic pathways and the activity and safety of its metabolites.

Prospects and outlooks for clinical applications

As a natural alkaloid with multiple pharmacological activities, Acetyl Zijin Ling shows broad prospects for clinical application. Its anti-inflammatory and immunomodulatory effects offer potential novel therapeutic strategies for autoimmune diseases, inflammatory diseases, and transplant rejection. Especially in the field of immunosuppression, acetyl Zijin Ling may become a safe and effective immunosuppressant by inhibiting dendritic cell function.

In the treatment of neurodegenerative diseases such as Parkinson's disease, Acetylviolin may delay neuronal damage and improve clinical symptoms by enhancing proteasome function through anti-apoptotic and proteasome effects. Moreover, its interactions with drug dependence-related targets suggest its potential value in the treatment of withdrawal and dependence.

However, the clinical translation of Acetyl Zijin Ling still faces many challenges, including incomplete safety evaluation, unclear pharmacokinetic characteristics, dosage form development, and clinical trial design. Future research should strengthen in vivo metabolism and toxicology studies, optimize extraction and purification processes, conduct systematic pharmacodynamics and pharmacokinetic studies, and promote its transition from laboratory to clinical application.

Additionally, chemical modifications and derivative designs based on the structure of acetyl Zijin Jing, combined with modern drug screening technologies, are expected to develop candidate drugs with greater activity and better pharmacokinetic properties.

Conclusion

Acetyl Violet, as a benzophenidine alkaloid derived from Corydalis bungeana, has become a hot topic in natural product pharmacology due to its significant anti-inflammatory, immunomodulatory, and neuroprotective effects. Its multi-target, multi-mechanism pharmacological properties provide new ideas and potential drug candidates for treating various diseases.

Although research on acetyl Zijin has made some progress, its safety, pharmacokinetics, and clinical applicability still require further exploration. In the future, efforts should be made to strengthen the integration of basic research and clinical translation, promote the development of acetyl Zijin Jingling as a new drug, and contribute to the advancement of natural product pharmacology and modern medicine.