Key result
CD7-targeting tLNPs maximize mRNA delivery and in vivo CAR T-cell generation via rapid receptor internalization.
Why the study?
While multiple T-cell surface receptors have been targeted for tLNP-mediated in vivo CAR T-cell generation with diverse efficiencies, their comparative performance and underlying mechanisms remain unclear.
Does CD7-targeting tLNP improve mRNA delivery efficiency to T cells compared to other receptor targets in humanized mice and in vitro models?
Population
Human T cells and PBMCs in vitro, and humanized mice in vivo
Comparison
tLNPs targeting CD2, CD4, CD5, CD7, CD8, or CD4/8 dual-targeting
Design
Preclinical comparative in vitro and in vivo study
Authors
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Should not change clinical CAR-T practice; leaves open human translation of CD7-targeted tLNPs.
Does CD7-targeting tLNP improve mRNA delivery efficiency to T cells compared to other receptor targets in humanized mice and in vitro models?
CD7-targeted lipid nanoparticles outperform other receptor targets for in vivo CAR T-cell engineering due to rapid receptor internalization.
Zeng et al. (2026) studied CAR T-cell engineering. CD7-targeted lipid nanoparticles (tLNPs) vs. tLNPs targeting CD2, CD4, CD5, CD8, or CD4/8 was evaluated on mRNA delivery efficiency to T cells and in vivo CAR T-cell generation. CD7-targeting tLNPs achieved the highest mRNA delivery to T cells and efficiently generated functional CAR T cells in vivo, driven primarily by rapid receptor internalization kinetics.
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