Storage conditions：Short-term storage at 2~8℃, long-term storage at -20 ~ -80℃
Magnoflorine Iodide (CAS number: 4277-43-4) is a natural alkaloid derived from aporphins, with significant multiple biological activities. The parent compound (+) - Magnoline (also known as α - Magnoline) is widely present in various traditional Chinese medicinal materials. Due to its excellent oral bioavailability and multi-target regulatory ability, it has attracted widespread attention in the field of natural product pharmacology in recent years. Research has shown that (+) - Magnoflorine not only exhibits diverse pharmacological activities in anti-inflammatory, immune regulation, neuroprotection, anti-tumor, and antifungal aspects, but also achieves its therapeutic effects through multiple signaling pathways, demonstrating high potential for development.
The purpose of this article is to systematically review the chemical structure and physicochemical properties, plant sources, and extraction methods of iodinated magnolol, explore its pharmacological activity and mechanism of action, evaluate its pharmacological properties and pharmacokinetic characteristics, and finally look forward to its clinical application prospects, providing theoretical basis and research direction for subsequent research and new drug development.
Iodide magnolol is an iodide salt of (+) - Magnoline, with a molecular formula of C20H24NO4 · I and a molecular weight of 342.4150. Its structure belongs to the aporphine alkaloid class, with a typical tetracyclic indole alkaloid skeleton and multiple chiral centers, exhibiting high stereoselectivity. The structure contains polar groups such as methoxy and hydroxyl, giving it a certain degree of hydrophilicity.
In terms of physical and chemical properties, the LogP value of iodinated magnolol is -0.6749, indicating its strong hydrophilicity and water solubility of 0.1529 (unit not specified, speculated to be in the g/mL or mg/mL level), indicating its certain solubility in aqueous phase. The polar surface area (TPSA) is 58.92 Å ², indicating that its molecular polarity is moderate and conducive to binding with biomolecules. The low permeability of the blood-brain barrier suggests that the direct function of the central nervous system may be limited. The hERG channel inhibition experiment showed a negative result, indicating a low risk of cardiac toxicity. The Ames mutagenicity test score of 0.6 indicates a low risk of genotoxicity, which is beneficial for drug safety.
(+) - Magnoflorine and its salts are mainly found in various traditional Chinese medicine plants such as Magnoliaceae, Ranunculaceae, Leguminosae, etc., especially Coptis chinensis, Phellodendron amurense, Magnolia spp., and some traditional Chinese medicine formulas, which are rich in content. It is widely distributed and its content is relatively stable, providing abundant natural resources for its medicinal development.
Traditional extraction methods often use a mixture of alcohol and water solvents (such as 70% ethanol) for extraction, combined with acidic conditions to promote the dissolution of alkaloids. The extraction solution was purified by liquid-liquid distribution, column chromatography (such as silica gel, C18 reverse phase column), and high performance liquid chromatography (HPLC) to obtain high-purity (+) - Magnoflorine and its iodide salt. In recent years, green and efficient technologies such as ultrasound assisted extraction and microwave-assisted extraction have gradually been applied to the extraction of this type of alkaloid, improving extraction efficiency and purity while reducing solvent usage and energy consumption.
Iodized magnolol and its parent compound (+) - Magnoflorine exhibit various important pharmacological activities, covering anti-inflammatory, immune regulation, neuroprotection, anti-tumor, and antifungal fields.
Anti inflammatory and immune regulatory effects
(+) - Magnoflorine promotes Parkin/PINK1 mediated mitochondrial autophagy, clears damaged mitochondria, reduces oxidative stress, inhibits NLRP3 inflammasome and Caspase-1 activation, and significantly reduces inflammatory response. In addition, it regulates the balance of intestinal microbiota, enhances intestinal barrier function, and further exerts immune regulatory effects. Multiple in vitro and in vivo experiments have validated its protective effect in inflammatory disease models.
Neuroprotective effect
In a neurodegenerative disease model, (+) - Magnoflorine exhibits good neuroprotective potential by inhibiting the JNK and TLR4/NF - κ B signaling pathways, reducing the release of pro-inflammatory factors, activating the Sirt1/AMPK pathway, enhancing cellular antioxidant capacity, reducing neuronal oxidative stress and apoptosis.
Antitumor activity
(+) - Magnoflorine upregulates miR-410-3p, inhibits the HMGB1/NF - κ B signaling pathway, induces tumor cell apoptosis, and suppresses tumor cell proliferation and migration. Its targets include various tumor related proteins, including MCL1, BCL2, STAT3, MMP2, TOP1, HIF1A, TOP2A, MAPK1, ESR1, and CYP19A1, demonstrating broad-spectrum anti-tumor potential.
Antifungal activity
(+) - Magnoflorine exhibits inhibitory effects on various pathogenic fungi, which may involve cell membrane disruption and metabolic interference, providing new ideas for the development of antifungal drugs.
The multiple pharmacological effects of iodinated magnolol are attributed to its complex molecular mechanism of action and multi-target regulatory network.
Mitochondrial autophagy regulation
By activating the Parkin/PINK1 pathway, it promotes selective autophagy of damaged mitochondria, reduces ROS generation, and alleviates cellular oxidative damage.
Inhibition of inflammatory signaling pathway
Inhibit NLRP3/Caspase-1 inflammasome and TLR4/NF - κ B signaling pathway, reduce levels of pro-inflammatory cytokines such as IL-1 β and TNF - α, and alleviate inflammatory response.
Regulation of neuroprotective signals
Activate the Sirt1/AMPK signaling pathway, promote cellular energy metabolism and antioxidant defense, inhibit the JNK signaling pathway, and reduce cell apoptosis.
Tumor related pathway intervention
By upregulating miR-410-3p and negatively regulating the HMGB1/NF - κ B pathway, the proliferation and metastasis of tumor cells are inhibited. Its target proteins include anti apoptotic proteins MCL1 and BCL2, signal transduction factor STAT3, matrix metalloproteinase MMP2, topoisomerase TOP1/TOP2A, transcription factor HIF1A, kinase MAPK1, estrogen receptor ESR1, and aromatase CYP19A1, forming a multi-target synergistic anti-tumor network.
The pharmacological parameters of iodinated magnolol indicate that it has good potential for drug development. The molecular weight of 342.4150 conforms to Lipinski's rule, and the LogP value of -0.6749 indicates strong hydrophilicity, which is beneficial for in vivo distribution. The TPSA is 58.92 Å ², indicating good membrane permeability. Moderate water solubility is beneficial for the development of oral formulations.
The low permeability of the blood-brain barrier suggests limited central nervous system function, but this may reduce the risk of central toxicity in the treatment of certain diseases. No hERG channel inhibitory effect, reducing the risk of cardiac toxicity. The Ames test results showed low genotoxicity and good safety.
Pharmacokinetic studies have shown that (+) - Magnoflorine has good oral absorption, high bioavailability, and wide distribution in the body. It is mainly metabolized by the liver and excreted through the kidneys and bile. Moderate half-life, suitable for daily administration. Further research is needed in the future to investigate the specific roles of its metabolic enzymes and potential drug interactions.
Based on its multi-target and multi mechanism pharmacological properties, iodinated magnolol has broad clinical application prospects in the treatment of various diseases.
Anti inflammatory and immune diseases
It is suitable for the treatment of inflammatory bowel disease, autoimmune diseases, and chronic inflammatory states by regulating the inflammatory signaling pathway and gut microbiota.
Neurodegenerative diseases
Through its antioxidant, anti apoptotic, and neuroprotective effects, it is expected to become an adjuvant therapy for neurodegenerative diseases such as Alzheimer's disease and Parkinson's disease.
tumor therapy
The multi-target anti-tumor activity makes it promising as a novel anti-cancer drug or adjuvant chemotherapy drug, especially in inhibiting tumor metastasis and drug resistance.
Antifungal therapy
Its significant antifungal activity provides a new treatment option for clinical fungal infections, especially in the context of an increase in drug-resistant strains.
Future research should focus on its preclinical safety evaluation, pharmacokinetic optimization, formulation development, and clinical trial design, promoting its transition from laboratory to clinical application.
Iodide magnolol, as a multifunctional aporphine alkaloid, exhibits rich pharmacological activity and good pharmacological properties due to its unique chemical structure and multi-target regulatory mechanism. It has shown significant potential in multiple fields such as anti-inflammatory, immune regulation, neuroprotection, anti-tumor, and antifungal effects, and has important value as a new type of natural medicine. In the future, through in-depth mechanism research, pharmacokinetic optimization, and clinical validation, iodinated magnolol is expected to become an important candidate drug for the treatment of various diseases, promoting the development and innovation of natural product pharmacology.
