Injectable Hydrogels as Unique Platforms for Local Chemotherapeutics-Based Combination Antitumor Therapy

Area of Science:

• Biomaterials Science
• Oncology
• Drug Delivery Systems

Background:

• Systemic administration of chemotherapeutics faces challenges like low tumor accumulation and significant side effects.
• Injectable hydrogels present an alternative for localized, sustained drug delivery to tumor sites.
• Local co-delivery systems aim to improve therapeutic efficacy and minimize systemic toxicity in cancer treatment.

Purpose of the Study:

• To review recent advancements in injectable hydrogel-based drug co-delivery systems for local combination cancer therapy.
• To discuss the preparation and rationale behind these localized delivery platforms.
• To highlight various combination strategies including chemo-immunotherapy and chemo-radiotherapy.

Main Methods:

• Literature review of recent studies on injectable hydrogels for local cancer therapy.
• Analysis of different combination therapeutic strategies employed with hydrogel systems.
• Discussion on the advantages of local drug co-delivery over systemic administration.

Main Results:

• Injectable hydrogels facilitate facile drug delivery and sustained release at tumor sites.
• Local co-delivery systems demonstrate enhanced antitumor efficiency with reduced systemic toxicities.
• Various combination therapies (chemotherapeutics, immunotherapy, radiotherapy, hyperthermia) are effectively integrated into hydrogel platforms.

Conclusions:

• Injectable hydrogels are effective platforms for local combination cancer therapy.
• These systems offer significant advantages in improving drug accumulation and reducing side effects.
• Further development of hydrogel-based co-delivery systems holds great promise for clinical cancer treatment.