Layered Zirconium Phosphate Nanocarriers for Mitoxantrone: Advancing Targeted Chemotherapy

Area of Science:

• Nanotechnology
• Materials Science
• Pharmacology

Background:

• Layered zirconium phosphates (ZrPs) are safe inorganic nanoparticles.
• Mitoxantrone (MTX) is an effective anticancer drug with significant systemic toxicity.
• Developing targeted drug delivery systems is crucial for improving cancer therapy.

Purpose of the Study:

• To intercalate mitoxantrone (MTX) into layered zirconium phosphate nanoparticles (ZrPs) to create MTX@ZrP.
• To characterize the MTX@ZrP nanoparticles and determine drug loading and release conditions.
• To evaluate the cytotoxicity of MTX@ZrP on PC3 prostate cancer cells.

Main Methods:

• Intercalation of MTX into ZrP at various molar ratios.
• Characterization using FTIR, SEM/EDX, z-potential, XRPD, and TGA.
• Drug release studies at different pH levels (simulated body fluid, artificial lysosomal fluid).
• Cytotoxicity assays on PC3 prostate cancer cells.

Main Results:

• MTX@ZrP nanoparticles were successfully synthesized with an expanded interlayer distance (20.0 Å).
• The 1:1 MTX@ZrP molar ratio achieved the highest drug loading (13.8%).
• MTX release from ZrP was found to be pH-dependent.
• MTX@ZrP demonstrated significant cytotoxic effects on PC3 prostate cancer cells.

Conclusions:

• MTX@ZrP represents a promising drug delivery system for cancer treatment.
• This approach can potentially minimize adverse effects on healthy tissues.
• Further development could lead to more bearable and effective cancer therapies.