MIT nanoparticles reprogram immune cells inside the body to fight cancer

· Science · United States

MIT scientists have developed nanoparticles that reprogram immune cells directly inside the body to attack cancer and harmful immune cells, according to a report. In mouse experiments the approach eliminated tumors and reversed liver damage. The researchers say the breakthrough could make powerful immune therapies dramatically simpler and less expensive, while opening new treatment possibilities. The work sits in the fast-moving field of in vivo cell engineering, which aims to modify immune cells without removing them from the patient, in contrast to treatments such as CAR-T that require extracting, altering and reinfusing cells. The immediate effect is a promising preclinical proof of concept; human trials would be needed before any clinical use.

Why it matters：If in-body immune reprogramming holds up, it could lower the cost and complexity of cell therapies that currently require extracting and re-engineering a patient's cells.

Key points

  • Nanoparticles reprogram immune cells in situ rather than outside the body.
  • Mouse experiments showed tumors eliminated and liver damage reversed.
  • Researchers frame the approach as simpler and cheaper than existing immune therapies.

Sources (original reporting)

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