Bioactive pH-sensitive nanoemulsion in melanoma cell lines

Area of Science:

• Nanotechnology
• Oncology
• Pharmacology

Background:

• Melanoma is an aggressive, metastatic skin cancer.
• Drug resistance and toxicity are critical challenges in cancer therapy.
• Nanotechnology offers solutions to mitigate anti-cancer treatment side effects.

Purpose of the Study:

• To create and evaluate oil-in-water nanoemulsions using oleic acid as a carrier for lipophilic drugs.
• To investigate the encapsulation, cellular interaction, and efficacy of curcumin-loaded nanoemulsions.
• To assess the potential of oleic acid nanoemulsions for improved drug delivery in melanoma.

Main Methods:

• Formulation of oleic acid-based oil-in-water nanoemulsions.
• Loading of curcumin as a model lipophilic drug.
• Evaluation of physical-chemical properties, stability, and pH sensitivity.
• Assessment of curcumin preservation against degradation.
• In vitro testing of nanoemulsion biological functions in B16F10 melanoma cells.

Main Results:

• Curcumin-loaded nanoemulsions demonstrated pH sensitivity and stability over time.
• The nanoemulsions successfully preserved curcumin from degradation.
• Evidence of the biological activity of nanoemulsion-delivered curcumin was observed.
• The nanoemulsion system showed potential for enhanced drug delivery compared to free curcumin.

Conclusions:

• Oleic acid-based nanoemulsions are effective carriers for lipophilic drugs like curcumin.
• This nanocarrier system shows promise for improving the efficacy of anti-cancer treatments.
• The developed nanoemulsions offer a viable strategy to address drug resistance and toxicity in melanoma therapy.