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Nasal nanomedicine clears deadly brain tumours in mice — Level A1 — Abstract blue and white organic shapes on light blue background

Nasal nanomedicine clears deadly brain tumours in miceCEFR A1

25 Nov 2025

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Adapted from Washington U. in St. Louis, Futurity • CC BY 4.0

Photo by Irene Demetri, Unsplash

Level A1 – Beginner
2 min
72 words
  • Scientists tested a new medicine in mice.
  • The medicine goes into the brain through the nose.
  • The mice had a cancer called glioblastoma.
  • The medicine uses tiny structures with DNA.
  • These structures go to immune cells near the tumour.
  • One or two doses removed the tumours in mice.
  • The mice had long-term protection after treatment.
  • The work is in the journal PNAS.
  • The researchers plan more work to make it better.

Difficult words

  • medicine — A substance used to treat illness.
  • deliver — To give something to someone.
    delivered
  • tumor — A lump in the body that may be harmful.
    tumors
  • dangerous — Likely to cause harm or injury.
  • immune — Related to the body's defense against illness.
  • invasive — Involving surgery or entering the body.

Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.

Discussion questions

  • What do you think about using medicine through the nose?
  • Have you heard of any new medicines that help people?
  • Why is it important to fight tumors?

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