Nanobody Platform Enhances Cancer Immunotherapy Through Albumin Hitchhiking and STING Activation
- Vanderbilt researchers developed albumin-hitchhiking nanobodies that extend circulation time from 5 minutes to 55 hours and achieve 11% injected dose per gram tumor accumulation.
- The nanobody-STING agonist conjugates demonstrated complete tumor elimination in 100% of breast cancer models and significant efficacy against melanoma metastases.
- A bivalent nanobody targeting both albumin and PD-L1 showed superior therapeutic outcomes, generating immunological memory that prevented tumor recurrence in 89% of treated mice.
- The platform activated CD8+ T cells and NK cells as primary antitumor effectors while stimulating antigen-specific memory responses against tumor-associated antigens.
GlaxoSmithKline
Posted 3/12/2019