An efficient targeted drug delivery through apotransferrin loaded nanoparticles.

Area of Science:

• Biomedical Engineering
• Nanotechnology
• Pharmacology

Background:

• Cancer cells overexpress specific receptors for nutrient uptake.
• These receptors are potential targets for drug delivery systems.
• Apotransferrin protein nanoparticles show promise for targeted drug transport.

Purpose of the Study:

• To evaluate the efficacy of apotransferrin nanoparticles for targeted doxorubicin delivery.
• To compare direct drug loading (direct-nano) versus drug conjugation (conj-nano).
• To assess the safety and targeting efficiency of the developed nanoparticles.

Main Methods:

• Apotransferrin nanoparticles synthesized via sol-oil chemistry.
• Comparative analysis of direct-nano and conj-nano drug delivery efficiency.
• In vitro and in vivo studies including cellular uptake, pharmacokinetics, tissue distribution, and cancer model efficacy.

Main Results:

• Apotransferrin nanoparticles (25-50 nm) loaded with doxorubicin showed increased size.
• Direct-nano demonstrated rapid drug release, nuclear localization, enhanced pharmacokinetics, and superior cancer cell proliferation inhibition.
• Tissue distribution showed higher liver and blood localization, with reduced cardiac and renal accumulation.

Conclusions:

• Direct-nano apotransferrin nanoparticles are highly effective for targeted drug delivery.
• This approach offers enhanced efficacy with reduced toxicity to vital organs like the heart, liver, and kidney.