GlcNAc Conjugated Atorvastatin with Enhanced Water Solubility and Cellular Internalization
Xinfu Zhang1, Xiaofang Chen1, Weiyu Zhao1
1Division of Pharmaceutics & Pharmaceutical Chemistry, College of Pharmacy, ‡Department of Biomedical Engineering, §The Center for Clinical and Translational Science, ∥The Comprehensive Cancer Center, ⊥Dorothy M. Davis Heart & Lung Research Institute, and ¶Department of Radiation Oncology, The Ohio State University , Columbus, Ohio 43210, United States.
Bioconjugate Chemistry
|July 27, 2017
Summary
Researchers created novel N-acetylglucosamine (GlcNAc) drug conjugates with atorvastatin for targeted delivery. These conjugates improved solubility, cellular uptake, and effectively inhibited HMG-CoA reductase, showing potential for enhanced pharmaceutical applications.
Area of Science:
- Bioconjugation Chemistry
- Drug Delivery Systems
- Pharmacology
Background:
- Targeting ligands enhance cell-specific drug delivery and improve drug properties.
- Atorvastatin is a widely used statin for lowering cholesterol by inhibiting HMG-CoA reductase.
Purpose of the Study:
- To design and synthesize novel ligand-drug conjugates by linking N-acetylglucosamine (GlcNAc) to atorvastatin.
- To evaluate the pharmaceutical properties, cellular uptake, and HMG-CoA reductase inhibitory activity of the synthesized conjugates.
Main Methods:
- Synthesis of two GlcNAc-atorvastatin conjugates (G-AT and G-K-AT).
- Assessment of water solubility and cellular uptake efficiency.
- In vitro evaluation of atorvastatin release and inhibition of 3-hydroxy-3-methyl-glutaryl-coenzyme A (HMG-CoA) reductase.
Main Results:
- The G-AT and G-K-AT conjugates demonstrated improved water solubility compared to unconjugated atorvastatin.
- Enhanced cellular uptake of the conjugates was observed.
- Both conjugates successfully released atorvastatin and exhibited significant inhibition of HMG-CoA reductase activity.
Conclusions:
- GlcNAc-atorvastatin conjugates represent a promising strategy for targeted drug delivery.
- These conjugates offer improved solubility and cellular uptake, leading to effective HMG-CoA reductase inhibition.
- The developed conjugates have potential applications in pharmaceutical formulations for enhanced efficacy.
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