Qualitative Superiority, Not Magnitude, of Lung-Resident CD8+ T Cells Determines Protective Efficacy of Influenza NP Versus PB1 Vaccines
Serin Lee, Eunju Jang, Jun Chang · 2026
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Description
Serin Lee, Eunju Jang, and Jun Chang compare two flu vaccine targets for lung-resident killer T cells in a 2026 mouse study. Universal flu vaccines aim for lasting T cells in the lungs that attack shared viral parts. Nose-delivered virus carriers carrying either nucleoprotein or polymerase basic protein 1 produced similar cell counts in airways. Survival after a lethal flu dose and cell quality measures then separated the two vaccines sharply.
Only the nucleoprotein vaccine gave full survival. Its cells favored a surface pattern linked to stronger killing, showed far higher sensitivity to tiny viral signals, and killed more strongly inside lungs. Polymerase cells favored a different surface pattern with weaker performance. The authors argue that target choice should prize cell quality over cell count alone.
Catalog record
| CREATOR | Serin Lee, Eunju Jang, Jun Chang |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 31 KB |
| LICENSE | https://creativecommons.org/licenses/by/4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |