Turning the clock: mRNA-encoded thymic factors restore aged immunity
Muhammad Naveed Khan, Hui Li, Xiaosong Li · 2026
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Description
Khan and co-authors comment on a striking anti-aging experiment in this 2026 brief report in Signal Transduction and Targeted Therapy. With age the thymus shrinks, fresh T-cell output fades, and vaccine responses and cancer immunity weaken. A recent Nature study they discuss delivered messenger RNA to the liver of old mice, turning it into a temporary factory for three thymus-supporting factors the body stops making.
The treated mice expanded young immune-cell precursors, produced fresh T cells again, and answered vaccines and cancer immunotherapy better, teaming well with checkpoint-blocking drugs. Because messenger RNA fades, the effect was reversible, and, unlike harsh cytokine treatments, it caused no autoimmunity in the study. Khan and colleagues frame the approach as a safe, transient way to rewind immune aging, pending human evidence.
Catalog record
| CREATOR | Muhammad Naveed Khan, Hui Li, Xiaosong Li |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 10 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |