Further immune profiling revealed enhanced dendritic cell maturation, pro-inflammatory macrophage polarization, and increased cytotoxic CD8+Granzyme B+ T-cell activation within the tumor microenvironment. Collectively, this LDH-based nanotherapeutic strategy enhances YM155 efficacy by coupling Survivin inhibition with PANoptosis activation and ICD-associated immune stimulation, providing a promising platform for hepatocellular carcinoma therapy.
17 days ago
Journal
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CD8 (cluster of differentiation 8) • CASP3 (Caspase 3) • HMGB1 (High Mobility Group Box 1) • CASP8 (Caspase 8) • GZMB (Granzyme B) • CALR (Calreticulin) • NLRP3 (NLR Family Pyrin Domain Containing 3) • ANXA5 (Annexin A5)
Survivin-specific immune responses occur in 62.5% of tested patients and correlate with clinical benefit. The combination demonstrates tolerability and sustained clinical activity.
We studied MRI immune cell tracking in a murine model of ovarian cancer using a clinically relevant treatment combination of DPX-Survivac, anti-PD-1, and an intermittent low dose of Cyclophosphamide (CPA). The density of SPIO-labeled myeloid and CD8+ T cells in tumors was higher in the treatment group than in the control group. This study provides insights into how MRI can be used in concert with biological assays to study how immunotherapy and chemotherapy combinations exert their antitumor effects.
Early clinical candidates, such as EZN-3042 and ALN-VSP, achieved target engagement and biological activity, while limitations included variable tumour uptake, dose-limiting toxicities, and complex pharmacokinetic behaviour. Translation to clinical practice will depend on optimised delivery platforms, reproducible pharmacokinetic/pharmacodynamic synchronisation, and rigorous evaluation of safety and off-target effects. Overall, current evidence highlights substantial potential for siRNA-drug co-delivery while emphasizing key challenges to overcome in achieving durable clinically meaningful outcomes.