Cell and tissue engineering in lymph nodes for cancer immunotherapy

Area of Science:

• Immunology
• Oncology
• Biomaterials Science

Background:

• Lymph nodes (LNs) are critical for coordinating antitumor immune responses through antigen presentation.
• Understanding LN structure and function is key to developing effective cancer immunotherapies.

Purpose of the Study:

• To review strategies for engineering lymph nodes (LNs) to enhance cancer immunotherapy outcomes.
• To explore cellular and tissue-level approaches for improving therapeutic efficacy.

Main Methods:

• Review of existing literature on lymph node biology and cancer immunotherapy.
• Analysis of strategies targeting cellular interactions within LNs.
• Examination of biomaterial-based approaches mimicking LN functions.
• Discussion of methods for inducing ectopic lymphoid structures.

Main Results:

• Targeting LNs at the cellular level can significantly impact the potency of cancer vaccines, immune checkpoint blockade, and adoptive cell transfer.
• Macro-scale biomaterials designed to mimic LN features can serve as in vivo immune niches or in vitro platforms for preclinical testing.
• Strategies for inducing ectopic lymphoid sites show promise for improving antitumor T cell priming.

Conclusions:

• Engineering lymph nodes offers a promising avenue for improving cancer immunotherapy.
• Both cellular-level interventions and tissue-level biomaterial designs can enhance immune responses against cancer.
• Inducing ectopic lymphoid structures represents a novel approach to boost antitumor immunity.