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[Structure charateristics of mitoxantrone transforsomes]
Tong Chen1, Shixiang Hou, Biqiong Shi
1Department of Pharmaceutics Sciences, School of Pharmacy, Sichuan University, Chengdu 610041, China.
Summary
Mitoxantrone tightly binds to lecithin within transforsomes, enhancing membrane stability. This interaction ensures high encapsulation efficiency and sustained drug release for mitoxantrone transforsomes.
Area of Science:
- Pharmaceutical Sciences
- Drug Delivery Systems
- Nanotechnology
Background:
- Mitoxantrone is an anthracycline chemotherapy agent.
- Transfersomes are advanced drug delivery vesicles.
- Understanding drug-vehicle interaction is crucial for effective formulations.
Purpose of the Study:
- To elucidate the molecular interactions between mitoxantrone and transforsomes.
- To determine the precise location of mitoxantrone within the transferosome structure.
- To confirm the impact of mitoxantrone on transferosome membrane stability and release characteristics.
Main Methods:
- UV-spectrophotometry and electron probe scan microscopy were used to determine the intercalation site of mitoxantrone's anthraquinone.
- 8-value analysis confirmed the interaction between the drug's side chains and lecithin.
- Differential scanning calorimetry assessed the effect of mitoxantrone on the transferosome membrane.
Main Results:
- Mitoxantrone's anthraquinone intercalates within the lipid bilayer of transforsomes.
- The drug's aminoethylamino side chains interact with lecithin phosphates, confirming binding.
- Mitoxantrone significantly stabilizes the transferosome membrane.
Conclusions:
- Mitoxantrone exhibits strong binding affinity to lecithin in transforsomes.
- This tight binding leads to high encapsulation efficiency.
- The formulation demonstrates sustained-release properties, verified by experimental data.