Biomimetic approaches for targeting tumor-promoting inflammation

Area of Science:

• Biomedical Engineering
• Nanomedicine
• Drug Delivery

Background:

• Conventional nanocarriers face biological barriers, limiting therapeutic accumulation in tumors.
• Tumor cells and inflammatory cells infiltrate the tumor microenvironment more efficiently than synthetic carriers.
• Biomimicry offers a novel strategy to enhance nanocarrier tumor targeting by mimicking natural cellular processes.

Purpose of the Study:

• To review recent advancements in biomimetic drug delivery systems.
• To highlight strategies for targeting the tumor inflammatory microenvironment.
• To explore the potential of biomimicry for improving therapeutic efficacy.

Main Methods:

• Development of nanoparticles coated with cell membranes (e.g., leukocytes, mesenchymal cells).
• Utilizing exosomes as natural nanocarriers for molecular delivery.
• Biomimicking viral and bacterial agents for targeting inflammatory immune cells.
• Exploiting inflammation-induced protein alterations in cancer cells for drug targeting.
• Engineering infiltrating cells as therapeutic microcarriers.

Main Results:

• Biomimetic nanocarriers demonstrate improved circulation stability and tumor accumulation.
• Cell membrane-coated nanoparticles effectively target tumor sites.
• Exosomes and viral/bacterial biomimetic agents show promise for targeted delivery.
• Exploiting tumor microenvironment characteristics enhances drug delivery efficiency.

Conclusions:

• Biomimicry represents a significant advancement in nanomedicine for cancer therapy.
• Targeting the tumor inflammatory microenvironment is a key strategy for effective drug delivery.
• Future developments in biomimetic drug delivery hold great potential for cancer treatment.