Injectable chitosan hydrogels for localised cancer therapy

Area of Science:

• Biomedical Engineering
• Drug Delivery Systems
• Oncology

Background:

• Traditional cancer treatment delivery systems like microspheres and nanoparticles have limitations.
• Injectable in situ hydrogels are gaining interest for targeted drug delivery and controlled release.

Purpose of the Study:

• To review the current applications of injectable in situ chitosan hydrogels in cancer treatment.
• To discuss formulation, drug loading, release kinetics, and in vivo/in vitro efficacy of these hydrogels.

Main Methods:

• Review of existing literature on in situ chitosan hydrogels for cancer therapy.
• Analysis of formulation strategies, drug loading/release studies, and cytotoxic/anti-tumor effects.
• Inclusion of in vitro cell studies and in vivo mouse models for efficacy assessment.

Main Results:

• In situ chitosan hydrogels demonstrate controlled drug release and significant inhibition of tumor growth in mouse models.
• These systems exhibit favorable cytotoxic properties and effects on cell growth in vitro.
• Formulation protocols and drug loading/release characteristics are well-defined.

Conclusions:

• Injectable in situ chitosan hydrogels represent a promising platform for advanced cancer treatment.
• Further research into enhancing these hydrogel systems can improve targeted drug delivery and therapeutic outcomes.
• Chitosan hydrogels offer a viable alternative to traditional delivery systems in oncology.